(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
	typeof define === 'function' && define.amd ? define(['exports'], factory) :
	(factory((global.THREE = global.THREE || {})));
}(this, (function (exports) { 'use strict';

	// Polyfills

	if ( Number.EPSILON === undefined ) {

		Number.EPSILON = Math.pow( 2, - 52 );

	}

	if ( Number.isInteger === undefined ) {

		// Missing in IE
		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger

		Number.isInteger = function ( value ) {

			return typeof value === 'number' && isFinite( value ) && Math.floor( value ) === value;

		};

	}

	//

	if ( Math.sign === undefined ) {

		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign

		Math.sign = function ( x ) {

			return ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;

		};

	}

	if ( Function.prototype.name === undefined ) {

		// Missing in IE
		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name

		Object.defineProperty( Function.prototype, 'name', {

			get: function () {

				return this.toString().match( /^\s*function\s*([^\(\s]*)/ )[ 1 ];

			}

		} );

	}

	if ( Object.assign === undefined ) {

		// Missing in IE
		// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign

		( function () {

			Object.assign = function ( target ) {

				'use strict';

				if ( target === undefined || target === null ) {

					throw new TypeError( 'Cannot convert undefined or null to object' );

				}

				var output = Object( target );

				for ( var index = 1; index < arguments.length; index ++ ) {

					var source = arguments[ index ];

					if ( source !== undefined && source !== null ) {

						for ( var nextKey in source ) {

							if ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {

								output[ nextKey ] = source[ nextKey ];

							}

						}

					}

				}

				return output;

			};

		} )();

	}

	/**
	 * https://github.com/mrdoob/eventdispatcher.js/
	 */

	function EventDispatcher() {}

	Object.assign( EventDispatcher.prototype, {

		addEventListener: function ( type, listener ) {

			if ( this._listeners === undefined ) this._listeners = {};

			var listeners = this._listeners;

			if ( listeners[ type ] === undefined ) {

				listeners[ type ] = [];

			}

			if ( listeners[ type ].indexOf( listener ) === - 1 ) {

				listeners[ type ].push( listener );

			}

		},

		hasEventListener: function ( type, listener ) {

			if ( this._listeners === undefined ) return false;

			var listeners = this._listeners;

			return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;

		},

		removeEventListener: function ( type, listener ) {

			if ( this._listeners === undefined ) return;

			var listeners = this._listeners;
			var listenerArray = listeners[ type ];

			if ( listenerArray !== undefined ) {

				var index = listenerArray.indexOf( listener );

				if ( index !== - 1 ) {

					listenerArray.splice( index, 1 );

				}

			}

		},

		dispatchEvent: function ( event ) {

			if ( this._listeners === undefined ) return;

			var listeners = this._listeners;
			var listenerArray = listeners[ event.type ];

			if ( listenerArray !== undefined ) {

				event.target = this;

				var array = listenerArray.slice( 0 );

				for ( var i = 0, l = array.length; i < l; i ++ ) {

					array[ i ].call( this, event );

				}

			}

		}

	} );

	var REVISION = '86';
	var MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };
	var CullFaceNone = 0;
	var CullFaceBack = 1;
	var CullFaceFront = 2;
	var CullFaceFrontBack = 3;
	var FrontFaceDirectionCW = 0;
	var FrontFaceDirectionCCW = 1;
	var BasicShadowMap = 0;
	var PCFShadowMap = 1;
	var PCFSoftShadowMap = 2;
	var FrontSide = 0;
	var BackSide = 1;
	var DoubleSide = 2;
	var FlatShading = 1;
	var SmoothShading = 2;
	var NoColors = 0;
	var FaceColors = 1;
	var VertexColors = 2;
	var NoBlending = 0;
	var NormalBlending = 1;
	var AdditiveBlending = 2;
	var SubtractiveBlending = 3;
	var MultiplyBlending = 4;
	var CustomBlending = 5;
	var AddEquation = 100;
	var SubtractEquation = 101;
	var ReverseSubtractEquation = 102;
	var MinEquation = 103;
	var MaxEquation = 104;
	var ZeroFactor = 200;
	var OneFactor = 201;
	var SrcColorFactor = 202;
	var OneMinusSrcColorFactor = 203;
	var SrcAlphaFactor = 204;
	var OneMinusSrcAlphaFactor = 205;
	var DstAlphaFactor = 206;
	var OneMinusDstAlphaFactor = 207;
	var DstColorFactor = 208;
	var OneMinusDstColorFactor = 209;
	var SrcAlphaSaturateFactor = 210;
	var NeverDepth = 0;
	var AlwaysDepth = 1;
	var LessDepth = 2;
	var LessEqualDepth = 3;
	var EqualDepth = 4;
	var GreaterEqualDepth = 5;
	var GreaterDepth = 6;
	var NotEqualDepth = 7;
	var MultiplyOperation = 0;
	var MixOperation = 1;
	var AddOperation = 2;
	var NoToneMapping = 0;
	var LinearToneMapping = 1;
	var ReinhardToneMapping = 2;
	var Uncharted2ToneMapping = 3;
	var CineonToneMapping = 4;
	var UVMapping = 300;
	var CubeReflectionMapping = 301;
	var CubeRefractionMapping = 302;
	var EquirectangularReflectionMapping = 303;
	var EquirectangularRefractionMapping = 304;
	var SphericalReflectionMapping = 305;
	var CubeUVReflectionMapping = 306;
	var CubeUVRefractionMapping = 307;
	var RepeatWrapping = 1000;
	var ClampToEdgeWrapping = 1001;
	var MirroredRepeatWrapping = 1002;
	var NearestFilter = 1003;
	var NearestMipMapNearestFilter = 1004;
	var NearestMipMapLinearFilter = 1005;
	var LinearFilter = 1006;
	var LinearMipMapNearestFilter = 1007;
	var LinearMipMapLinearFilter = 1008;
	var UnsignedByteType = 1009;
	var ByteType = 1010;
	var ShortType = 1011;
	var UnsignedShortType = 1012;
	var IntType = 1013;
	var UnsignedIntType = 1014;
	var FloatType = 1015;
	var HalfFloatType = 1016;
	var UnsignedShort4444Type = 1017;
	var UnsignedShort5551Type = 1018;
	var UnsignedShort565Type = 1019;
	var UnsignedInt248Type = 1020;
	var AlphaFormat = 1021;
	var RGBFormat = 1022;
	var RGBAFormat = 1023;
	var LuminanceFormat = 1024;
	var LuminanceAlphaFormat = 1025;
	var RGBEFormat = RGBAFormat;
	var DepthFormat = 1026;
	var DepthStencilFormat = 1027;
	var RGB_S3TC_DXT1_Format = 2001;
	var RGBA_S3TC_DXT1_Format = 2002;
	var RGBA_S3TC_DXT3_Format = 2003;
	var RGBA_S3TC_DXT5_Format = 2004;
	var RGB_PVRTC_4BPPV1_Format = 2100;
	var RGB_PVRTC_2BPPV1_Format = 2101;
	var RGBA_PVRTC_4BPPV1_Format = 2102;
	var RGBA_PVRTC_2BPPV1_Format = 2103;
	var RGB_ETC1_Format = 2151;
	var LoopOnce = 2200;
	var LoopRepeat = 2201;
	var LoopPingPong = 2202;
	var InterpolateDiscrete = 2300;
	var InterpolateLinear = 2301;
	var InterpolateSmooth = 2302;
	var ZeroCurvatureEnding = 2400;
	var ZeroSlopeEnding = 2401;
	var WrapAroundEnding = 2402;
	var TrianglesDrawMode = 0;
	var TriangleStripDrawMode = 1;
	var TriangleFanDrawMode = 2;
	var LinearEncoding = 3000;
	var sRGBEncoding = 3001;
	var GammaEncoding = 3007;
	var RGBEEncoding = 3002;
	var LogLuvEncoding = 3003;
	var RGBM7Encoding = 3004;
	var RGBM16Encoding = 3005;
	var RGBDEncoding = 3006;
	var BasicDepthPacking = 3200;
	var RGBADepthPacking = 3201;

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	var _Math = {

		DEG2RAD: Math.PI / 180,
		RAD2DEG: 180 / Math.PI,

		generateUUID: function () {

			// http://www.broofa.com/Tools/Math.uuid.htm

			var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split( '' );
			var uuid = new Array( 36 );
			var rnd = 0, r;

			return function generateUUID() {

				for ( var i = 0; i < 36; i ++ ) {

					if ( i === 8 || i === 13 || i === 18 || i === 23 ) {

						uuid[ i ] = '-';

					} else if ( i === 14 ) {

						uuid[ i ] = '4';

					} else {

						if ( rnd <= 0x02 ) rnd = 0x2000000 + ( Math.random() * 0x1000000 ) | 0;
						r = rnd & 0xf;
						rnd = rnd >> 4;
						uuid[ i ] = chars[ ( i === 19 ) ? ( r & 0x3 ) | 0x8 : r ];

					}

				}

				return uuid.join( '' );

			};

		}(),

		clamp: function ( value, min, max ) {

			return Math.max( min, Math.min( max, value ) );

		},

		// compute euclidian modulo of m % n
		// https://en.wikipedia.org/wiki/Modulo_operation

		euclideanModulo: function ( n, m ) {

			return ( ( n % m ) + m ) % m;

		},

		// Linear mapping from range <a1, a2> to range <b1, b2>

		mapLinear: function ( x, a1, a2, b1, b2 ) {

			return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );

		},

		// https://en.wikipedia.org/wiki/Linear_interpolation

		lerp: function ( x, y, t ) {

			return ( 1 - t ) * x + t * y;

		},

		// http://en.wikipedia.org/wiki/Smoothstep

		smoothstep: function ( x, min, max ) {

			if ( x <= min ) return 0;
			if ( x >= max ) return 1;

			x = ( x - min ) / ( max - min );

			return x * x * ( 3 - 2 * x );

		},

		smootherstep: function ( x, min, max ) {

			if ( x <= min ) return 0;
			if ( x >= max ) return 1;

			x = ( x - min ) / ( max - min );

			return x * x * x * ( x * ( x * 6 - 15 ) + 10 );

		},

		// Random integer from <low, high> interval

		randInt: function ( low, high ) {

			return low + Math.floor( Math.random() * ( high - low + 1 ) );

		},

		// Random float from <low, high> interval

		randFloat: function ( low, high ) {

			return low + Math.random() * ( high - low );

		},

		// Random float from <-range/2, range/2> interval

		randFloatSpread: function ( range ) {

			return range * ( 0.5 - Math.random() );

		},

		degToRad: function ( degrees ) {

			return degrees * _Math.DEG2RAD;

		},

		radToDeg: function ( radians ) {

			return radians * _Math.RAD2DEG;

		},

		isPowerOfTwo: function ( value ) {

			return ( value & ( value - 1 ) ) === 0 && value !== 0;

		},

		nearestPowerOfTwo: function ( value ) {

			return Math.pow( 2, Math.round( Math.log( value ) / Math.LN2 ) );

		},

		nextPowerOfTwo: function ( value ) {

			value --;
			value |= value >> 1;
			value |= value >> 2;
			value |= value >> 4;
			value |= value >> 8;
			value |= value >> 16;
			value ++;

			return value;

		}

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author philogb / http://blog.thejit.org/
	 * @author egraether / http://egraether.com/
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 */

	function Vector2( x, y ) {

		this.x = x || 0;
		this.y = y || 0;

	}

	Object.defineProperties( Vector2.prototype, {

		"width" : {

			get: function () {

				return this.x;

			},

			set: function ( value ) {

				this.x = value;

			}

		},

		"height" : {

			get: function () {

				return this.y;

			},

			set: function ( value ) {

				this.y = value;

			}

		}

	} );

	Object.assign( Vector2.prototype, {

		isVector2: true,

		set: function ( x, y ) {

			this.x = x;
			this.y = y;

			return this;

		},

		setScalar: function ( scalar ) {

			this.x = scalar;
			this.y = scalar;

			return this;

		},

		setX: function ( x ) {

			this.x = x;

			return this;

		},

		setY: function ( y ) {

			this.y = y;

			return this;

		},

		setComponent: function ( index, value ) {

			switch ( index ) {

				case 0: this.x = value; break;
				case 1: this.y = value; break;
				default: throw new Error( 'index is out of range: ' + index );

			}

			return this;

		},

		getComponent: function ( index ) {

			switch ( index ) {

				case 0: return this.x;
				case 1: return this.y;
				default: throw new Error( 'index is out of range: ' + index );

			}

		},

		clone: function () {

			return new this.constructor( this.x, this.y );

		},

		copy: function ( v ) {

			this.x = v.x;
			this.y = v.y;

			return this;

		},

		add: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
				return this.addVectors( v, w );

			}

			this.x += v.x;
			this.y += v.y;

			return this;

		},

		addScalar: function ( s ) {

			this.x += s;
			this.y += s;

			return this;

		},

		addVectors: function ( a, b ) {

			this.x = a.x + b.x;
			this.y = a.y + b.y;

			return this;

		},

		addScaledVector: function ( v, s ) {

			this.x += v.x * s;
			this.y += v.y * s;

			return this;

		},

		sub: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
				return this.subVectors( v, w );

			}

			this.x -= v.x;
			this.y -= v.y;

			return this;

		},

		subScalar: function ( s ) {

			this.x -= s;
			this.y -= s;

			return this;

		},

		subVectors: function ( a, b ) {

			this.x = a.x - b.x;
			this.y = a.y - b.y;

			return this;

		},

		multiply: function ( v ) {

			this.x *= v.x;
			this.y *= v.y;

			return this;

		},

		multiplyScalar: function ( scalar ) {

			this.x *= scalar;
			this.y *= scalar;

			return this;

		},

		divide: function ( v ) {

			this.x /= v.x;
			this.y /= v.y;

			return this;

		},

		divideScalar: function ( scalar ) {

			return this.multiplyScalar( 1 / scalar );

		},

		min: function ( v ) {

			this.x = Math.min( this.x, v.x );
			this.y = Math.min( this.y, v.y );

			return this;

		},

		max: function ( v ) {

			this.x = Math.max( this.x, v.x );
			this.y = Math.max( this.y, v.y );

			return this;

		},

		clamp: function ( min, max ) {

			// assumes min < max, componentwise

			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
			this.y = Math.max( min.y, Math.min( max.y, this.y ) );

			return this;

		},

		clampScalar: function () {

			var min = new Vector2();
			var max = new Vector2();

			return function clampScalar( minVal, maxVal ) {

				min.set( minVal, minVal );
				max.set( maxVal, maxVal );

				return this.clamp( min, max );

			};

		}(),

		clampLength: function ( min, max ) {

			var length = this.length();

			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

		},

		floor: function () {

			this.x = Math.floor( this.x );
			this.y = Math.floor( this.y );

			return this;

		},

		ceil: function () {

			this.x = Math.ceil( this.x );
			this.y = Math.ceil( this.y );

			return this;

		},

		round: function () {

			this.x = Math.round( this.x );
			this.y = Math.round( this.y );

			return this;

		},

		roundToZero: function () {

			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );

			return this;

		},

		negate: function () {

			this.x = - this.x;
			this.y = - this.y;

			return this;

		},

		dot: function ( v ) {

			return this.x * v.x + this.y * v.y;

		},

		lengthSq: function () {

			return this.x * this.x + this.y * this.y;

		},

		length: function () {

			return Math.sqrt( this.x * this.x + this.y * this.y );

		},

		lengthManhattan: function() {

			return Math.abs( this.x ) + Math.abs( this.y );

		},

		normalize: function () {

			return this.divideScalar( this.length() || 1 );

		},

		angle: function () {

			// computes the angle in radians with respect to the positive x-axis

			var angle = Math.atan2( this.y, this.x );

			if ( angle < 0 ) angle += 2 * Math.PI;

			return angle;

		},

		distanceTo: function ( v ) {

			return Math.sqrt( this.distanceToSquared( v ) );

		},

		distanceToSquared: function ( v ) {

			var dx = this.x - v.x, dy = this.y - v.y;
			return dx * dx + dy * dy;

		},

		distanceToManhattan: function ( v ) {

			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );

		},

		setLength: function ( length ) {

			return this.normalize().multiplyScalar( length );

		},

		lerp: function ( v, alpha ) {

			this.x += ( v.x - this.x ) * alpha;
			this.y += ( v.y - this.y ) * alpha;

			return this;

		},

		lerpVectors: function ( v1, v2, alpha ) {

			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );

		},

		equals: function ( v ) {

			return ( ( v.x === this.x ) && ( v.y === this.y ) );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this.x = array[ offset ];
			this.y = array[ offset + 1 ];

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this.x;
			array[ offset + 1 ] = this.y;

			return array;

		},

		fromBufferAttribute: function ( attribute, index, offset ) {

			if ( offset !== undefined ) {

				console.warn( 'THREE.Vector2: offset has been removed from .fromBufferAttribute().' );

			}

			this.x = attribute.getX( index );
			this.y = attribute.getY( index );

			return this;

		},

		rotateAround: function ( center, angle ) {

			var c = Math.cos( angle ), s = Math.sin( angle );

			var x = this.x - center.x;
			var y = this.y - center.y;

			this.x = x * c - y * s + center.x;
			this.y = x * s + y * c + center.y;

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author szimek / https://github.com/szimek/
	 */

	var textureId = 0;

	function Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {

		Object.defineProperty( this, 'id', { value: textureId ++ } );

		this.uuid = _Math.generateUUID();

		this.name = '';

		this.image = image !== undefined ? image : Texture.DEFAULT_IMAGE;
		this.mipmaps = [];

		this.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING;

		this.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping;
		this.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping;

		this.magFilter = magFilter !== undefined ? magFilter : LinearFilter;
		this.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter;

		this.anisotropy = anisotropy !== undefined ? anisotropy : 1;

		this.format = format !== undefined ? format : RGBAFormat;
		this.type = type !== undefined ? type : UnsignedByteType;

		this.offset = new Vector2( 0, 0 );
		this.repeat = new Vector2( 1, 1 );

		this.generateMipmaps = true;
		this.premultiplyAlpha = false;
		this.flipY = true;
		this.unpackAlignment = 4;	// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)

		// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
		//
		// Also changing the encoding after already used by a Material will not automatically make the Material
		// update.  You need to explicitly call Material.needsUpdate to trigger it to recompile.
		this.encoding = encoding !== undefined ? encoding : LinearEncoding;

		this.version = 0;
		this.onUpdate = null;

	}

	Texture.DEFAULT_IMAGE = undefined;
	Texture.DEFAULT_MAPPING = UVMapping;

	Object.defineProperty( Texture.prototype, "needsUpdate", {

		set: function ( value ) {

			if ( value === true ) this.version ++;

		}

	} );

	Object.assign( Texture.prototype, EventDispatcher.prototype, {

		constructor: Texture,

		isTexture: true,

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( source ) {

			this.name = source.name;

			this.image = source.image;
			this.mipmaps = source.mipmaps.slice( 0 );

			this.mapping = source.mapping;

			this.wrapS = source.wrapS;
			this.wrapT = source.wrapT;

			this.magFilter = source.magFilter;
			this.minFilter = source.minFilter;

			this.anisotropy = source.anisotropy;

			this.format = source.format;
			this.type = source.type;

			this.offset.copy( source.offset );
			this.repeat.copy( source.repeat );

			this.generateMipmaps = source.generateMipmaps;
			this.premultiplyAlpha = source.premultiplyAlpha;
			this.flipY = source.flipY;
			this.unpackAlignment = source.unpackAlignment;
			this.encoding = source.encoding;

			return this;

		},

		toJSON: function ( meta ) {

			if ( meta.textures[ this.uuid ] !== undefined ) {

				return meta.textures[ this.uuid ];

			}

			function getDataURL( image ) {

				var canvas;

				if ( image.toDataURL !== undefined ) {

					canvas = image;

				} else {

					canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
					canvas.width = image.width;
					canvas.height = image.height;

					canvas.getContext( '2d' ).drawImage( image, 0, 0, image.width, image.height );

				}

				if ( canvas.width > 2048 || canvas.height > 2048 ) {

					return canvas.toDataURL( 'image/jpeg', 0.6 );

				} else {

					return canvas.toDataURL( 'image/png' );

				}

			}

			var output = {
				metadata: {
					version: 4.5,
					type: 'Texture',
					generator: 'Texture.toJSON'
				},

				uuid: this.uuid,
				name: this.name,

				mapping: this.mapping,

				repeat: [ this.repeat.x, this.repeat.y ],
				offset: [ this.offset.x, this.offset.y ],
				wrap: [ this.wrapS, this.wrapT ],

				minFilter: this.minFilter,
				magFilter: this.magFilter,
				anisotropy: this.anisotropy,

				flipY: this.flipY
			};

			if ( this.image !== undefined ) {

				// TODO: Move to THREE.Image

				var image = this.image;

				if ( image.uuid === undefined ) {

					image.uuid = _Math.generateUUID(); // UGH

				}

				if ( meta.images[ image.uuid ] === undefined ) {

					meta.images[ image.uuid ] = {
						uuid: image.uuid,
						url: getDataURL( image )
					};

				}

				output.image = image.uuid;

			}

			meta.textures[ this.uuid ] = output;

			return output;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		},

		transformUv: function ( uv ) {

			if ( this.mapping !== UVMapping ) return;

			uv.multiply( this.repeat );
			uv.add( this.offset );

			if ( uv.x < 0 || uv.x > 1 ) {

				switch ( this.wrapS ) {

					case RepeatWrapping:

						uv.x = uv.x - Math.floor( uv.x );
						break;

					case ClampToEdgeWrapping:

						uv.x = uv.x < 0 ? 0 : 1;
						break;

					case MirroredRepeatWrapping:

						if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {

							uv.x = Math.ceil( uv.x ) - uv.x;

						} else {

							uv.x = uv.x - Math.floor( uv.x );

						}
						break;

				}

			}

			if ( uv.y < 0 || uv.y > 1 ) {

				switch ( this.wrapT ) {

					case RepeatWrapping:

						uv.y = uv.y - Math.floor( uv.y );
						break;

					case ClampToEdgeWrapping:

						uv.y = uv.y < 0 ? 0 : 1;
						break;

					case MirroredRepeatWrapping:

						if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {

							uv.y = Math.ceil( uv.y ) - uv.y;

						} else {

							uv.y = uv.y - Math.floor( uv.y );

						}
						break;

				}

			}

			if ( this.flipY ) {

				uv.y = 1 - uv.y;

			}

		}

	} );

	/**
	 * @author supereggbert / http://www.paulbrunt.co.uk/
	 * @author philogb / http://blog.thejit.org/
	 * @author mikael emtinger / http://gomo.se/
	 * @author egraether / http://egraether.com/
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function Vector4( x, y, z, w ) {

		this.x = x || 0;
		this.y = y || 0;
		this.z = z || 0;
		this.w = ( w !== undefined ) ? w : 1;

	}

	Object.assign( Vector4.prototype, {

		isVector4: true,

		set: function ( x, y, z, w ) {

			this.x = x;
			this.y = y;
			this.z = z;
			this.w = w;

			return this;

		},

		setScalar: function ( scalar ) {

			this.x = scalar;
			this.y = scalar;
			this.z = scalar;
			this.w = scalar;

			return this;

		},

		setX: function ( x ) {

			this.x = x;

			return this;

		},

		setY: function ( y ) {

			this.y = y;

			return this;

		},

		setZ: function ( z ) {

			this.z = z;

			return this;

		},

		setW: function ( w ) {

			this.w = w;

			return this;

		},

		setComponent: function ( index, value ) {

			switch ( index ) {

				case 0: this.x = value; break;
				case 1: this.y = value; break;
				case 2: this.z = value; break;
				case 3: this.w = value; break;
				default: throw new Error( 'index is out of range: ' + index );

			}

			return this;

		},

		getComponent: function ( index ) {

			switch ( index ) {

				case 0: return this.x;
				case 1: return this.y;
				case 2: return this.z;
				case 3: return this.w;
				default: throw new Error( 'index is out of range: ' + index );

			}

		},

		clone: function () {

			return new this.constructor( this.x, this.y, this.z, this.w );

		},

		copy: function ( v ) {

			this.x = v.x;
			this.y = v.y;
			this.z = v.z;
			this.w = ( v.w !== undefined ) ? v.w : 1;

			return this;

		},

		add: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
				return this.addVectors( v, w );

			}

			this.x += v.x;
			this.y += v.y;
			this.z += v.z;
			this.w += v.w;

			return this;

		},

		addScalar: function ( s ) {

			this.x += s;
			this.y += s;
			this.z += s;
			this.w += s;

			return this;

		},

		addVectors: function ( a, b ) {

			this.x = a.x + b.x;
			this.y = a.y + b.y;
			this.z = a.z + b.z;
			this.w = a.w + b.w;

			return this;

		},

		addScaledVector: function ( v, s ) {

			this.x += v.x * s;
			this.y += v.y * s;
			this.z += v.z * s;
			this.w += v.w * s;

			return this;

		},

		sub: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
				return this.subVectors( v, w );

			}

			this.x -= v.x;
			this.y -= v.y;
			this.z -= v.z;
			this.w -= v.w;

			return this;

		},

		subScalar: function ( s ) {

			this.x -= s;
			this.y -= s;
			this.z -= s;
			this.w -= s;

			return this;

		},

		subVectors: function ( a, b ) {

			this.x = a.x - b.x;
			this.y = a.y - b.y;
			this.z = a.z - b.z;
			this.w = a.w - b.w;

			return this;

		},

		multiplyScalar: function ( scalar ) {

			this.x *= scalar;
			this.y *= scalar;
			this.z *= scalar;
			this.w *= scalar;

			return this;

		},

		applyMatrix4: function ( m ) {

			var x = this.x, y = this.y, z = this.z, w = this.w;
			var e = m.elements;

			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;
			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;
			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;
			this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;

			return this;

		},

		divideScalar: function ( scalar ) {

			return this.multiplyScalar( 1 / scalar );

		},

		setAxisAngleFromQuaternion: function ( q ) {

			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm

			// q is assumed to be normalized

			this.w = 2 * Math.acos( q.w );

			var s = Math.sqrt( 1 - q.w * q.w );

			if ( s < 0.0001 ) {

				 this.x = 1;
				 this.y = 0;
				 this.z = 0;

			} else {

				 this.x = q.x / s;
				 this.y = q.y / s;
				 this.z = q.z / s;

			}

			return this;

		},

		setAxisAngleFromRotationMatrix: function ( m ) {

			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm

			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

			var angle, x, y, z,		// variables for result
				epsilon = 0.01,		// margin to allow for rounding errors
				epsilon2 = 0.1,		// margin to distinguish between 0 and 180 degrees

				te = m.elements,

				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

			if ( ( Math.abs( m12 - m21 ) < epsilon ) &&
			     ( Math.abs( m13 - m31 ) < epsilon ) &&
			     ( Math.abs( m23 - m32 ) < epsilon ) ) {

				// singularity found
				// first check for identity matrix which must have +1 for all terms
				// in leading diagonal and zero in other terms

				if ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&
				     ( Math.abs( m13 + m31 ) < epsilon2 ) &&
				     ( Math.abs( m23 + m32 ) < epsilon2 ) &&
				     ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {

					// this singularity is identity matrix so angle = 0

					this.set( 1, 0, 0, 0 );

					return this; // zero angle, arbitrary axis

				}

				// otherwise this singularity is angle = 180

				angle = Math.PI;

				var xx = ( m11 + 1 ) / 2;
				var yy = ( m22 + 1 ) / 2;
				var zz = ( m33 + 1 ) / 2;
				var xy = ( m12 + m21 ) / 4;
				var xz = ( m13 + m31 ) / 4;
				var yz = ( m23 + m32 ) / 4;

				if ( ( xx > yy ) && ( xx > zz ) ) {

					// m11 is the largest diagonal term

					if ( xx < epsilon ) {

						x = 0;
						y = 0.707106781;
						z = 0.707106781;

					} else {

						x = Math.sqrt( xx );
						y = xy / x;
						z = xz / x;

					}

				} else if ( yy > zz ) {

					// m22 is the largest diagonal term

					if ( yy < epsilon ) {

						x = 0.707106781;
						y = 0;
						z = 0.707106781;

					} else {

						y = Math.sqrt( yy );
						x = xy / y;
						z = yz / y;

					}

				} else {

					// m33 is the largest diagonal term so base result on this

					if ( zz < epsilon ) {

						x = 0.707106781;
						y = 0.707106781;
						z = 0;

					} else {

						z = Math.sqrt( zz );
						x = xz / z;
						y = yz / z;

					}

				}

				this.set( x, y, z, angle );

				return this; // return 180 deg rotation

			}

			// as we have reached here there are no singularities so we can handle normally

			var s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +
			                   ( m13 - m31 ) * ( m13 - m31 ) +
			                   ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize

			if ( Math.abs( s ) < 0.001 ) s = 1;

			// prevent divide by zero, should not happen if matrix is orthogonal and should be
			// caught by singularity test above, but I've left it in just in case

			this.x = ( m32 - m23 ) / s;
			this.y = ( m13 - m31 ) / s;
			this.z = ( m21 - m12 ) / s;
			this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );

			return this;

		},

		min: function ( v ) {

			this.x = Math.min( this.x, v.x );
			this.y = Math.min( this.y, v.y );
			this.z = Math.min( this.z, v.z );
			this.w = Math.min( this.w, v.w );

			return this;

		},

		max: function ( v ) {

			this.x = Math.max( this.x, v.x );
			this.y = Math.max( this.y, v.y );
			this.z = Math.max( this.z, v.z );
			this.w = Math.max( this.w, v.w );

			return this;

		},

		clamp: function ( min, max ) {

			// assumes min < max, componentwise

			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
			this.z = Math.max( min.z, Math.min( max.z, this.z ) );
			this.w = Math.max( min.w, Math.min( max.w, this.w ) );

			return this;

		},

		clampScalar: function () {

			var min, max;

			return function clampScalar( minVal, maxVal ) {

				if ( min === undefined ) {

					min = new Vector4();
					max = new Vector4();

				}

				min.set( minVal, minVal, minVal, minVal );
				max.set( maxVal, maxVal, maxVal, maxVal );

				return this.clamp( min, max );

			};

		}(),

		clampLength: function ( min, max ) {

			var length = this.length();

			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

		},

		floor: function () {

			this.x = Math.floor( this.x );
			this.y = Math.floor( this.y );
			this.z = Math.floor( this.z );
			this.w = Math.floor( this.w );

			return this;

		},

		ceil: function () {

			this.x = Math.ceil( this.x );
			this.y = Math.ceil( this.y );
			this.z = Math.ceil( this.z );
			this.w = Math.ceil( this.w );

			return this;

		},

		round: function () {

			this.x = Math.round( this.x );
			this.y = Math.round( this.y );
			this.z = Math.round( this.z );
			this.w = Math.round( this.w );

			return this;

		},

		roundToZero: function () {

			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );
			this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );

			return this;

		},

		negate: function () {

			this.x = - this.x;
			this.y = - this.y;
			this.z = - this.z;
			this.w = - this.w;

			return this;

		},

		dot: function ( v ) {

			return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;

		},

		lengthSq: function () {

			return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;

		},

		length: function () {

			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );

		},

		lengthManhattan: function () {

			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );

		},

		normalize: function () {

			return this.divideScalar( this.length() || 1 );

		},

		setLength: function ( length ) {

			return this.normalize().multiplyScalar( length );

		},

		lerp: function ( v, alpha ) {

			this.x += ( v.x - this.x ) * alpha;
			this.y += ( v.y - this.y ) * alpha;
			this.z += ( v.z - this.z ) * alpha;
			this.w += ( v.w - this.w ) * alpha;

			return this;

		},

		lerpVectors: function ( v1, v2, alpha ) {

			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );

		},

		equals: function ( v ) {

			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this.x = array[ offset ];
			this.y = array[ offset + 1 ];
			this.z = array[ offset + 2 ];
			this.w = array[ offset + 3 ];

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this.x;
			array[ offset + 1 ] = this.y;
			array[ offset + 2 ] = this.z;
			array[ offset + 3 ] = this.w;

			return array;

		},

		fromBufferAttribute: function ( attribute, index, offset ) {

			if ( offset !== undefined ) {

				console.warn( 'THREE.Vector4: offset has been removed from .fromBufferAttribute().' );

			}

			this.x = attribute.getX( index );
			this.y = attribute.getY( index );
			this.z = attribute.getZ( index );
			this.w = attribute.getW( index );

			return this;

		}

	} );

	/**
	 * @author szimek / https://github.com/szimek/
	 * @author alteredq / http://alteredqualia.com/
	 * @author Marius Kintel / https://github.com/kintel
	 */

	/*
	 In options, we can specify:
	 * Texture parameters for an auto-generated target texture
	 * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
	*/
	function WebGLRenderTarget( width, height, options ) {

		this.uuid = _Math.generateUUID();

		this.width = width;
		this.height = height;

		this.scissor = new Vector4( 0, 0, width, height );
		this.scissorTest = false;

		this.viewport = new Vector4( 0, 0, width, height );

		options = options || {};

		if ( options.minFilter === undefined ) options.minFilter = LinearFilter;

		this.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );

		this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;
		this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;
		this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;

	}

	Object.assign( WebGLRenderTarget.prototype, EventDispatcher.prototype, {

		isWebGLRenderTarget: true,

		setSize: function ( width, height ) {

			if ( this.width !== width || this.height !== height ) {

				this.width = width;
				this.height = height;

				this.dispose();

			}

			this.viewport.set( 0, 0, width, height );
			this.scissor.set( 0, 0, width, height );

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( source ) {

			this.width = source.width;
			this.height = source.height;

			this.viewport.copy( source.viewport );

			this.texture = source.texture.clone();

			this.depthBuffer = source.depthBuffer;
			this.stencilBuffer = source.stencilBuffer;
			this.depthTexture = source.depthTexture;

			return this;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com
	 */

	function WebGLRenderTargetCube( width, height, options ) {

		WebGLRenderTarget.call( this, width, height, options );

		this.activeCubeFace = 0; // PX 0, NX 1, PY 2, NY 3, PZ 4, NZ 5
		this.activeMipMapLevel = 0;

	}

	WebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype );
	WebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube;

	WebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true;

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author WestLangley / http://github.com/WestLangley
	 * @author bhouston / http://clara.io
	 */

	function Quaternion( x, y, z, w ) {

		this._x = x || 0;
		this._y = y || 0;
		this._z = z || 0;
		this._w = ( w !== undefined ) ? w : 1;

	}

	Object.assign( Quaternion, {

		slerp: function ( qa, qb, qm, t ) {

			return qm.copy( qa ).slerp( qb, t );

		},

		slerpFlat: function ( dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {

			// fuzz-free, array-based Quaternion SLERP operation

			var x0 = src0[ srcOffset0 + 0 ],
				y0 = src0[ srcOffset0 + 1 ],
				z0 = src0[ srcOffset0 + 2 ],
				w0 = src0[ srcOffset0 + 3 ],

				x1 = src1[ srcOffset1 + 0 ],
				y1 = src1[ srcOffset1 + 1 ],
				z1 = src1[ srcOffset1 + 2 ],
				w1 = src1[ srcOffset1 + 3 ];

			if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {

				var s = 1 - t,

					cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,

					dir = ( cos >= 0 ? 1 : - 1 ),
					sqrSin = 1 - cos * cos;

				// Skip the Slerp for tiny steps to avoid numeric problems:
				if ( sqrSin > Number.EPSILON ) {

					var sin = Math.sqrt( sqrSin ),
						len = Math.atan2( sin, cos * dir );

					s = Math.sin( s * len ) / sin;
					t = Math.sin( t * len ) / sin;

				}

				var tDir = t * dir;

				x0 = x0 * s + x1 * tDir;
				y0 = y0 * s + y1 * tDir;
				z0 = z0 * s + z1 * tDir;
				w0 = w0 * s + w1 * tDir;

				// Normalize in case we just did a lerp:
				if ( s === 1 - t ) {

					var f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );

					x0 *= f;
					y0 *= f;
					z0 *= f;
					w0 *= f;

				}

			}

			dst[ dstOffset ] = x0;
			dst[ dstOffset + 1 ] = y0;
			dst[ dstOffset + 2 ] = z0;
			dst[ dstOffset + 3 ] = w0;

		}

	} );

	Object.defineProperties( Quaternion.prototype, {

		x: {

			get: function () {

				return this._x;

			},

			set: function ( value ) {

				this._x = value;
				this.onChangeCallback();

			}

		},

		y: {

			get: function () {

				return this._y;

			},

			set: function ( value ) {

				this._y = value;
				this.onChangeCallback();

			}

		},

		z: {

			get: function () {

				return this._z;

			},

			set: function ( value ) {

				this._z = value;
				this.onChangeCallback();

			}

		},

		w: {

			get: function () {

				return this._w;

			},

			set: function ( value ) {

				this._w = value;
				this.onChangeCallback();

			}

		}

	} );

	Object.assign( Quaternion.prototype, {

		set: function ( x, y, z, w ) {

			this._x = x;
			this._y = y;
			this._z = z;
			this._w = w;

			this.onChangeCallback();

			return this;

		},

		clone: function () {

			return new this.constructor( this._x, this._y, this._z, this._w );

		},

		copy: function ( quaternion ) {

			this._x = quaternion.x;
			this._y = quaternion.y;
			this._z = quaternion.z;
			this._w = quaternion.w;

			this.onChangeCallback();

			return this;

		},

		setFromEuler: function ( euler, update ) {

			if ( ! ( euler && euler.isEuler ) ) {

				throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );

			}

			var x = euler._x, y = euler._y, z = euler._z, order = euler.order;

			// http://www.mathworks.com/matlabcentral/fileexchange/
			// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
			//	content/SpinCalc.m

			var cos = Math.cos;
			var sin = Math.sin;

			var c1 = cos( x / 2 );
			var c2 = cos( y / 2 );
			var c3 = cos( z / 2 );

			var s1 = sin( x / 2 );
			var s2 = sin( y / 2 );
			var s3 = sin( z / 2 );

			if ( order === 'XYZ' ) {

				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;

			} else if ( order === 'YXZ' ) {

				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;

			} else if ( order === 'ZXY' ) {

				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;

			} else if ( order === 'ZYX' ) {

				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;

			} else if ( order === 'YZX' ) {

				this._x = s1 * c2 * c3 + c1 * s2 * s3;
				this._y = c1 * s2 * c3 + s1 * c2 * s3;
				this._z = c1 * c2 * s3 - s1 * s2 * c3;
				this._w = c1 * c2 * c3 - s1 * s2 * s3;

			} else if ( order === 'XZY' ) {

				this._x = s1 * c2 * c3 - c1 * s2 * s3;
				this._y = c1 * s2 * c3 - s1 * c2 * s3;
				this._z = c1 * c2 * s3 + s1 * s2 * c3;
				this._w = c1 * c2 * c3 + s1 * s2 * s3;

			}

			if ( update !== false ) this.onChangeCallback();

			return this;

		},

		setFromAxisAngle: function ( axis, angle ) {

			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm

			// assumes axis is normalized

			var halfAngle = angle / 2, s = Math.sin( halfAngle );

			this._x = axis.x * s;
			this._y = axis.y * s;
			this._z = axis.z * s;
			this._w = Math.cos( halfAngle );

			this.onChangeCallback();

			return this;

		},

		setFromRotationMatrix: function ( m ) {

			// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm

			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

			var te = m.elements,

				m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],
				m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],
				m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],

				trace = m11 + m22 + m33,
				s;

			if ( trace > 0 ) {

				s = 0.5 / Math.sqrt( trace + 1.0 );

				this._w = 0.25 / s;
				this._x = ( m32 - m23 ) * s;
				this._y = ( m13 - m31 ) * s;
				this._z = ( m21 - m12 ) * s;

			} else if ( m11 > m22 && m11 > m33 ) {

				s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );

				this._w = ( m32 - m23 ) / s;
				this._x = 0.25 * s;
				this._y = ( m12 + m21 ) / s;
				this._z = ( m13 + m31 ) / s;

			} else if ( m22 > m33 ) {

				s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );

				this._w = ( m13 - m31 ) / s;
				this._x = ( m12 + m21 ) / s;
				this._y = 0.25 * s;
				this._z = ( m23 + m32 ) / s;

			} else {

				s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );

				this._w = ( m21 - m12 ) / s;
				this._x = ( m13 + m31 ) / s;
				this._y = ( m23 + m32 ) / s;
				this._z = 0.25 * s;

			}

			this.onChangeCallback();

			return this;

		},

		setFromUnitVectors: function () {

			// assumes direction vectors vFrom and vTo are normalized

			var v1 = new Vector3();
			var r;

			var EPS = 0.000001;

			return function setFromUnitVectors( vFrom, vTo ) {

				if ( v1 === undefined ) v1 = new Vector3();

				r = vFrom.dot( vTo ) + 1;

				if ( r < EPS ) {

					r = 0;

					if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {

						v1.set( - vFrom.y, vFrom.x, 0 );

					} else {

						v1.set( 0, - vFrom.z, vFrom.y );

					}

				} else {

					v1.crossVectors( vFrom, vTo );

				}

				this._x = v1.x;
				this._y = v1.y;
				this._z = v1.z;
				this._w = r;

				return this.normalize();

			};

		}(),

		inverse: function () {

			return this.conjugate().normalize();

		},

		conjugate: function () {

			this._x *= - 1;
			this._y *= - 1;
			this._z *= - 1;

			this.onChangeCallback();

			return this;

		},

		dot: function ( v ) {

			return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;

		},

		lengthSq: function () {

			return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;

		},

		length: function () {

			return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );

		},

		normalize: function () {

			var l = this.length();

			if ( l === 0 ) {

				this._x = 0;
				this._y = 0;
				this._z = 0;
				this._w = 1;

			} else {

				l = 1 / l;

				this._x = this._x * l;
				this._y = this._y * l;
				this._z = this._z * l;
				this._w = this._w * l;

			}

			this.onChangeCallback();

			return this;

		},

		multiply: function ( q, p ) {

			if ( p !== undefined ) {

				console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );
				return this.multiplyQuaternions( q, p );

			}

			return this.multiplyQuaternions( this, q );

		},

		premultiply: function ( q ) {

			return this.multiplyQuaternions( q, this );

		},

		multiplyQuaternions: function ( a, b ) {

			// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm

			var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;
			var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;

			this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;
			this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;
			this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;
			this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;

			this.onChangeCallback();

			return this;

		},

		slerp: function ( qb, t ) {

			if ( t === 0 ) return this;
			if ( t === 1 ) return this.copy( qb );

			var x = this._x, y = this._y, z = this._z, w = this._w;

			// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/

			var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;

			if ( cosHalfTheta < 0 ) {

				this._w = - qb._w;
				this._x = - qb._x;
				this._y = - qb._y;
				this._z = - qb._z;

				cosHalfTheta = - cosHalfTheta;

			} else {

				this.copy( qb );

			}

			if ( cosHalfTheta >= 1.0 ) {

				this._w = w;
				this._x = x;
				this._y = y;
				this._z = z;

				return this;

			}

			var sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta );

			if ( Math.abs( sinHalfTheta ) < 0.001 ) {

				this._w = 0.5 * ( w + this._w );
				this._x = 0.5 * ( x + this._x );
				this._y = 0.5 * ( y + this._y );
				this._z = 0.5 * ( z + this._z );

				return this;

			}

			var halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );
			var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,
				ratioB = Math.sin( t * halfTheta ) / sinHalfTheta;

			this._w = ( w * ratioA + this._w * ratioB );
			this._x = ( x * ratioA + this._x * ratioB );
			this._y = ( y * ratioA + this._y * ratioB );
			this._z = ( z * ratioA + this._z * ratioB );

			this.onChangeCallback();

			return this;

		},

		equals: function ( quaternion ) {

			return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this._x = array[ offset ];
			this._y = array[ offset + 1 ];
			this._z = array[ offset + 2 ];
			this._w = array[ offset + 3 ];

			this.onChangeCallback();

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this._x;
			array[ offset + 1 ] = this._y;
			array[ offset + 2 ] = this._z;
			array[ offset + 3 ] = this._w;

			return array;

		},

		onChange: function ( callback ) {

			this.onChangeCallback = callback;

			return this;

		},

		onChangeCallback: function () {}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author kile / http://kile.stravaganza.org/
	 * @author philogb / http://blog.thejit.org/
	 * @author mikael emtinger / http://gomo.se/
	 * @author egraether / http://egraether.com/
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function Vector3( x, y, z ) {

		this.x = x || 0;
		this.y = y || 0;
		this.z = z || 0;

	}

	Object.assign( Vector3.prototype, {

		isVector3: true,

		set: function ( x, y, z ) {

			this.x = x;
			this.y = y;
			this.z = z;

			return this;

		},

		setScalar: function ( scalar ) {

			this.x = scalar;
			this.y = scalar;
			this.z = scalar;

			return this;

		},

		setX: function ( x ) {

			this.x = x;

			return this;

		},

		setY: function ( y ) {

			this.y = y;

			return this;

		},

		setZ: function ( z ) {

			this.z = z;

			return this;

		},

		setComponent: function ( index, value ) {

			switch ( index ) {

				case 0: this.x = value; break;
				case 1: this.y = value; break;
				case 2: this.z = value; break;
				default: throw new Error( 'index is out of range: ' + index );

			}

			return this;

		},

		getComponent: function ( index ) {

			switch ( index ) {

				case 0: return this.x;
				case 1: return this.y;
				case 2: return this.z;
				default: throw new Error( 'index is out of range: ' + index );

			}

		},

		clone: function () {

			return new this.constructor( this.x, this.y, this.z );

		},

		copy: function ( v ) {

			this.x = v.x;
			this.y = v.y;
			this.z = v.z;

			return this;

		},

		add: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );
				return this.addVectors( v, w );

			}

			this.x += v.x;
			this.y += v.y;
			this.z += v.z;

			return this;

		},

		addScalar: function ( s ) {

			this.x += s;
			this.y += s;
			this.z += s;

			return this;

		},

		addVectors: function ( a, b ) {

			this.x = a.x + b.x;
			this.y = a.y + b.y;
			this.z = a.z + b.z;

			return this;

		},

		addScaledVector: function ( v, s ) {

			this.x += v.x * s;
			this.y += v.y * s;
			this.z += v.z * s;

			return this;

		},

		sub: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );
				return this.subVectors( v, w );

			}

			this.x -= v.x;
			this.y -= v.y;
			this.z -= v.z;

			return this;

		},

		subScalar: function ( s ) {

			this.x -= s;
			this.y -= s;
			this.z -= s;

			return this;

		},

		subVectors: function ( a, b ) {

			this.x = a.x - b.x;
			this.y = a.y - b.y;
			this.z = a.z - b.z;

			return this;

		},

		multiply: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );
				return this.multiplyVectors( v, w );

			}

			this.x *= v.x;
			this.y *= v.y;
			this.z *= v.z;

			return this;

		},

		multiplyScalar: function ( scalar ) {

			this.x *= scalar;
			this.y *= scalar;
			this.z *= scalar;

			return this;

		},

		multiplyVectors: function ( a, b ) {

			this.x = a.x * b.x;
			this.y = a.y * b.y;
			this.z = a.z * b.z;

			return this;

		},

		applyEuler: function () {

			var quaternion = new Quaternion();

			return function applyEuler( euler ) {

				if ( ! ( euler && euler.isEuler ) ) {

					console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );

				}

				return this.applyQuaternion( quaternion.setFromEuler( euler ) );

			};

		}(),

		applyAxisAngle: function () {

			var quaternion = new Quaternion();

			return function applyAxisAngle( axis, angle ) {

				return this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );

			};

		}(),

		applyMatrix3: function ( m ) {

			var x = this.x, y = this.y, z = this.z;
			var e = m.elements;

			this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;
			this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;
			this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;

			return this;

		},

		applyMatrix4: function ( m ) {

			var x = this.x, y = this.y, z = this.z;
			var e = m.elements;

			var w = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] );

			this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ]  * z + e[ 12 ] ) * w;
			this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ]  * z + e[ 13 ] ) * w;
			this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * w;

			return this;

		},

		applyQuaternion: function ( q ) {

			var x = this.x, y = this.y, z = this.z;
			var qx = q.x, qy = q.y, qz = q.z, qw = q.w;

			// calculate quat * vector

			var ix =  qw * x + qy * z - qz * y;
			var iy =  qw * y + qz * x - qx * z;
			var iz =  qw * z + qx * y - qy * x;
			var iw = - qx * x - qy * y - qz * z;

			// calculate result * inverse quat

			this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;
			this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;
			this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;

			return this;

		},

		project: function () {

			var matrix = new Matrix4();

			return function project( camera ) {

				matrix.multiplyMatrices( camera.projectionMatrix, matrix.getInverse( camera.matrixWorld ) );
				return this.applyMatrix4( matrix );

			};

		}(),

		unproject: function () {

			var matrix = new Matrix4();

			return function unproject( camera ) {

				matrix.multiplyMatrices( camera.matrixWorld, matrix.getInverse( camera.projectionMatrix ) );
				return this.applyMatrix4( matrix );

			};

		}(),

		transformDirection: function ( m ) {

			// input: THREE.Matrix4 affine matrix
			// vector interpreted as a direction

			var x = this.x, y = this.y, z = this.z;
			var e = m.elements;

			this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ]  * z;
			this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ]  * z;
			this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;

			return this.normalize();

		},

		divide: function ( v ) {

			this.x /= v.x;
			this.y /= v.y;
			this.z /= v.z;

			return this;

		},

		divideScalar: function ( scalar ) {

			return this.multiplyScalar( 1 / scalar );

		},

		min: function ( v ) {

			this.x = Math.min( this.x, v.x );
			this.y = Math.min( this.y, v.y );
			this.z = Math.min( this.z, v.z );

			return this;

		},

		max: function ( v ) {

			this.x = Math.max( this.x, v.x );
			this.y = Math.max( this.y, v.y );
			this.z = Math.max( this.z, v.z );

			return this;

		},

		clamp: function ( min, max ) {

			// assumes min < max, componentwise

			this.x = Math.max( min.x, Math.min( max.x, this.x ) );
			this.y = Math.max( min.y, Math.min( max.y, this.y ) );
			this.z = Math.max( min.z, Math.min( max.z, this.z ) );

			return this;

		},

		clampScalar: function () {

			var min = new Vector3();
			var max = new Vector3();

			return function clampScalar( minVal, maxVal ) {

				min.set( minVal, minVal, minVal );
				max.set( maxVal, maxVal, maxVal );

				return this.clamp( min, max );

			};

		}(),

		clampLength: function ( min, max ) {

			var length = this.length();

			return this.divideScalar( length || 1 ).multiplyScalar( Math.max( min, Math.min( max, length ) ) );

		},

		floor: function () {

			this.x = Math.floor( this.x );
			this.y = Math.floor( this.y );
			this.z = Math.floor( this.z );

			return this;

		},

		ceil: function () {

			this.x = Math.ceil( this.x );
			this.y = Math.ceil( this.y );
			this.z = Math.ceil( this.z );

			return this;

		},

		round: function () {

			this.x = Math.round( this.x );
			this.y = Math.round( this.y );
			this.z = Math.round( this.z );

			return this;

		},

		roundToZero: function () {

			this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );
			this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );
			this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );

			return this;

		},

		negate: function () {

			this.x = - this.x;
			this.y = - this.y;
			this.z = - this.z;

			return this;

		},

		dot: function ( v ) {

			return this.x * v.x + this.y * v.y + this.z * v.z;

		},

		// TODO lengthSquared?

		lengthSq: function () {

			return this.x * this.x + this.y * this.y + this.z * this.z;

		},

		length: function () {

			return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );

		},

		lengthManhattan: function () {

			return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );

		},

		normalize: function () {

			return this.divideScalar( this.length() || 1 );

		},

		setLength: function ( length ) {

			return this.normalize().multiplyScalar( length );

		},

		lerp: function ( v, alpha ) {

			this.x += ( v.x - this.x ) * alpha;
			this.y += ( v.y - this.y ) * alpha;
			this.z += ( v.z - this.z ) * alpha;

			return this;

		},

		lerpVectors: function ( v1, v2, alpha ) {

			return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );

		},

		cross: function ( v, w ) {

			if ( w !== undefined ) {

				console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );
				return this.crossVectors( v, w );

			}

			var x = this.x, y = this.y, z = this.z;

			this.x = y * v.z - z * v.y;
			this.y = z * v.x - x * v.z;
			this.z = x * v.y - y * v.x;

			return this;

		},

		crossVectors: function ( a, b ) {

			var ax = a.x, ay = a.y, az = a.z;
			var bx = b.x, by = b.y, bz = b.z;

			this.x = ay * bz - az * by;
			this.y = az * bx - ax * bz;
			this.z = ax * by - ay * bx;

			return this;

		},

		projectOnVector: function ( vector ) {

			var scalar = vector.dot( this ) / vector.lengthSq();

			return this.copy( vector ).multiplyScalar( scalar );

		},

		projectOnPlane: function () {

			var v1 = new Vector3();

			return function projectOnPlane( planeNormal ) {

				v1.copy( this ).projectOnVector( planeNormal );

				return this.sub( v1 );

			};

		}(),

		reflect: function () {

			// reflect incident vector off plane orthogonal to normal
			// normal is assumed to have unit length

			var v1 = new Vector3();

			return function reflect( normal ) {

				return this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );

			};

		}(),

		angleTo: function ( v ) {

			var theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );

			// clamp, to handle numerical problems

			return Math.acos( _Math.clamp( theta, - 1, 1 ) );

		},

		distanceTo: function ( v ) {

			return Math.sqrt( this.distanceToSquared( v ) );

		},

		distanceToSquared: function ( v ) {

			var dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;

			return dx * dx + dy * dy + dz * dz;

		},

		distanceToManhattan: function ( v ) {

			return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );

		},

		setFromSpherical: function ( s ) {

			var sinPhiRadius = Math.sin( s.phi ) * s.radius;

			this.x = sinPhiRadius * Math.sin( s.theta );
			this.y = Math.cos( s.phi ) * s.radius;
			this.z = sinPhiRadius * Math.cos( s.theta );

			return this;

		},

		setFromCylindrical: function ( c ) {

			this.x = c.radius * Math.sin( c.theta );
			this.y = c.y;
			this.z = c.radius * Math.cos( c.theta );

			return this;

		},

		setFromMatrixPosition: function ( m ) {

			var e = m.elements;

			this.x = e[ 12 ];
			this.y = e[ 13 ];
			this.z = e[ 14 ];

			return this;

		},

		setFromMatrixScale: function ( m ) {

			var sx = this.setFromMatrixColumn( m, 0 ).length();
			var sy = this.setFromMatrixColumn( m, 1 ).length();
			var sz = this.setFromMatrixColumn( m, 2 ).length();

			this.x = sx;
			this.y = sy;
			this.z = sz;

			return this;

		},

		setFromMatrixColumn: function ( m, index ) {

			return this.fromArray( m.elements, index * 4 );

		},

		equals: function ( v ) {

			return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this.x = array[ offset ];
			this.y = array[ offset + 1 ];
			this.z = array[ offset + 2 ];

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this.x;
			array[ offset + 1 ] = this.y;
			array[ offset + 2 ] = this.z;

			return array;

		},

		fromBufferAttribute: function ( attribute, index, offset ) {

			if ( offset !== undefined ) {

				console.warn( 'THREE.Vector3: offset has been removed from .fromBufferAttribute().' );

			}

			this.x = attribute.getX( index );
			this.y = attribute.getY( index );
			this.z = attribute.getZ( index );

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author supereggbert / http://www.paulbrunt.co.uk/
	 * @author philogb / http://blog.thejit.org/
	 * @author jordi_ros / http://plattsoft.com
	 * @author D1plo1d / http://github.com/D1plo1d
	 * @author alteredq / http://alteredqualia.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author timknip / http://www.floorplanner.com/
	 * @author bhouston / http://clara.io
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function Matrix4() {

		this.elements = [

			1, 0, 0, 0,
			0, 1, 0, 0,
			0, 0, 1, 0,
			0, 0, 0, 1

		];

		if ( arguments.length > 0 ) {

			console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );

		}

	}

	Object.assign( Matrix4.prototype, {

		isMatrix4: true,

		set: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {

			var te = this.elements;

			te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;
			te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;
			te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;
			te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;

			return this;

		},

		identity: function () {

			this.set(

				1, 0, 0, 0,
				0, 1, 0, 0,
				0, 0, 1, 0,
				0, 0, 0, 1

			);

			return this;

		},

		clone: function () {

			return new Matrix4().fromArray( this.elements );

		},

		copy: function ( m ) {

			var te = this.elements;
			var me = m.elements;

			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ]; te[ 3 ] = me[ 3 ];
			te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ]; te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ];
			te[ 8 ] = me[ 8 ]; te[ 9 ] = me[ 9 ]; te[ 10 ] = me[ 10 ]; te[ 11 ] = me[ 11 ];
			te[ 12 ] = me[ 12 ]; te[ 13 ] = me[ 13 ]; te[ 14 ] = me[ 14 ]; te[ 15 ] = me[ 15 ];

			return this;

		},

		copyPosition: function ( m ) {

			var te = this.elements, me = m.elements;

			te[ 12 ] = me[ 12 ];
			te[ 13 ] = me[ 13 ];
			te[ 14 ] = me[ 14 ];

			return this;

		},

		extractBasis: function ( xAxis, yAxis, zAxis ) {

			xAxis.setFromMatrixColumn( this, 0 );
			yAxis.setFromMatrixColumn( this, 1 );
			zAxis.setFromMatrixColumn( this, 2 );

			return this;

		},

		makeBasis: function ( xAxis, yAxis, zAxis ) {

			this.set(
				xAxis.x, yAxis.x, zAxis.x, 0,
				xAxis.y, yAxis.y, zAxis.y, 0,
				xAxis.z, yAxis.z, zAxis.z, 0,
				0,       0,       0,       1
			);

			return this;

		},

		extractRotation: function () {

			var v1 = new Vector3();

			return function extractRotation( m ) {

				var te = this.elements;
				var me = m.elements;

				var scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();
				var scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();
				var scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();

				te[ 0 ] = me[ 0 ] * scaleX;
				te[ 1 ] = me[ 1 ] * scaleX;
				te[ 2 ] = me[ 2 ] * scaleX;

				te[ 4 ] = me[ 4 ] * scaleY;
				te[ 5 ] = me[ 5 ] * scaleY;
				te[ 6 ] = me[ 6 ] * scaleY;

				te[ 8 ] = me[ 8 ] * scaleZ;
				te[ 9 ] = me[ 9 ] * scaleZ;
				te[ 10 ] = me[ 10 ] * scaleZ;

				return this;

			};

		}(),

		makeRotationFromEuler: function ( euler ) {

			if ( ! ( euler && euler.isEuler ) ) {

				console.error( 'THREE.Matrix: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );

			}

			var te = this.elements;

			var x = euler.x, y = euler.y, z = euler.z;
			var a = Math.cos( x ), b = Math.sin( x );
			var c = Math.cos( y ), d = Math.sin( y );
			var e = Math.cos( z ), f = Math.sin( z );

			if ( euler.order === 'XYZ' ) {

				var ae = a * e, af = a * f, be = b * e, bf = b * f;

				te[ 0 ] = c * e;
				te[ 4 ] = - c * f;
				te[ 8 ] = d;

				te[ 1 ] = af + be * d;
				te[ 5 ] = ae - bf * d;
				te[ 9 ] = - b * c;

				te[ 2 ] = bf - ae * d;
				te[ 6 ] = be + af * d;
				te[ 10 ] = a * c;

			} else if ( euler.order === 'YXZ' ) {

				var ce = c * e, cf = c * f, de = d * e, df = d * f;

				te[ 0 ] = ce + df * b;
				te[ 4 ] = de * b - cf;
				te[ 8 ] = a * d;

				te[ 1 ] = a * f;
				te[ 5 ] = a * e;
				te[ 9 ] = - b;

				te[ 2 ] = cf * b - de;
				te[ 6 ] = df + ce * b;
				te[ 10 ] = a * c;

			} else if ( euler.order === 'ZXY' ) {

				var ce = c * e, cf = c * f, de = d * e, df = d * f;

				te[ 0 ] = ce - df * b;
				te[ 4 ] = - a * f;
				te[ 8 ] = de + cf * b;

				te[ 1 ] = cf + de * b;
				te[ 5 ] = a * e;
				te[ 9 ] = df - ce * b;

				te[ 2 ] = - a * d;
				te[ 6 ] = b;
				te[ 10 ] = a * c;

			} else if ( euler.order === 'ZYX' ) {

				var ae = a * e, af = a * f, be = b * e, bf = b * f;

				te[ 0 ] = c * e;
				te[ 4 ] = be * d - af;
				te[ 8 ] = ae * d + bf;

				te[ 1 ] = c * f;
				te[ 5 ] = bf * d + ae;
				te[ 9 ] = af * d - be;

				te[ 2 ] = - d;
				te[ 6 ] = b * c;
				te[ 10 ] = a * c;

			} else if ( euler.order === 'YZX' ) {

				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;

				te[ 0 ] = c * e;
				te[ 4 ] = bd - ac * f;
				te[ 8 ] = bc * f + ad;

				te[ 1 ] = f;
				te[ 5 ] = a * e;
				te[ 9 ] = - b * e;

				te[ 2 ] = - d * e;
				te[ 6 ] = ad * f + bc;
				te[ 10 ] = ac - bd * f;

			} else if ( euler.order === 'XZY' ) {

				var ac = a * c, ad = a * d, bc = b * c, bd = b * d;

				te[ 0 ] = c * e;
				te[ 4 ] = - f;
				te[ 8 ] = d * e;

				te[ 1 ] = ac * f + bd;
				te[ 5 ] = a * e;
				te[ 9 ] = ad * f - bc;

				te[ 2 ] = bc * f - ad;
				te[ 6 ] = b * e;
				te[ 10 ] = bd * f + ac;

			}

			// last column
			te[ 3 ] = 0;
			te[ 7 ] = 0;
			te[ 11 ] = 0;

			// bottom row
			te[ 12 ] = 0;
			te[ 13 ] = 0;
			te[ 14 ] = 0;
			te[ 15 ] = 1;

			return this;

		},

		makeRotationFromQuaternion: function ( q ) {

			var te = this.elements;

			var x = q._x, y = q._y, z = q._z, w = q._w;
			var x2 = x + x, y2 = y + y, z2 = z + z;
			var xx = x * x2, xy = x * y2, xz = x * z2;
			var yy = y * y2, yz = y * z2, zz = z * z2;
			var wx = w * x2, wy = w * y2, wz = w * z2;

			te[ 0 ] = 1 - ( yy + zz );
			te[ 4 ] = xy - wz;
			te[ 8 ] = xz + wy;

			te[ 1 ] = xy + wz;
			te[ 5 ] = 1 - ( xx + zz );
			te[ 9 ] = yz - wx;

			te[ 2 ] = xz - wy;
			te[ 6 ] = yz + wx;
			te[ 10 ] = 1 - ( xx + yy );

			// last column
			te[ 3 ] = 0;
			te[ 7 ] = 0;
			te[ 11 ] = 0;

			// bottom row
			te[ 12 ] = 0;
			te[ 13 ] = 0;
			te[ 14 ] = 0;
			te[ 15 ] = 1;

			return this;

		},

		lookAt: function () {

			var x = new Vector3();
			var y = new Vector3();
			var z = new Vector3();

			return function lookAt( eye, target, up ) {

				var te = this.elements;

				z.subVectors( eye, target );

				if ( z.lengthSq() === 0 ) {

					// eye and target are in the same position

					z.z = 1;

				}

				z.normalize();
				x.crossVectors( up, z );

				if ( x.lengthSq() === 0 ) {

					// up and z are parallel

					if ( Math.abs( up.z ) === 1 ) {

						z.x += 0.0001;

					} else {

						z.z += 0.0001;

					}

					z.normalize();
					x.crossVectors( up, z );

				}

				x.normalize();
				y.crossVectors( z, x );

				te[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;
				te[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;
				te[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;

				return this;

			};

		}(),

		multiply: function ( m, n ) {

			if ( n !== undefined ) {

				console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );
				return this.multiplyMatrices( m, n );

			}

			return this.multiplyMatrices( this, m );

		},

		premultiply: function ( m ) {

			return this.multiplyMatrices( m, this );

		},

		multiplyMatrices: function ( a, b ) {

			var ae = a.elements;
			var be = b.elements;
			var te = this.elements;

			var a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];
			var a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];
			var a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];
			var a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];

			var b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];
			var b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];
			var b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];
			var b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];

			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;
			te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;
			te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;
			te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;

			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;
			te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;
			te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;
			te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;

			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;
			te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;
			te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;
			te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;

			te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;
			te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;
			te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;
			te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;

			return this;

		},

		multiplyScalar: function ( s ) {

			var te = this.elements;

			te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;
			te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;
			te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;
			te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;

			return this;

		},

		applyToBufferAttribute: function () {

			var v1 = new Vector3();

			return function applyToBufferAttribute( attribute ) {

				for ( var i = 0, l = attribute.count; i < l; i ++ ) {

					v1.x = attribute.getX( i );
					v1.y = attribute.getY( i );
					v1.z = attribute.getZ( i );

					v1.applyMatrix4( this );

					attribute.setXYZ( i, v1.x, v1.y, v1.z );

				}

				return attribute;

			};

		}(),

		determinant: function () {

			var te = this.elements;

			var n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];
			var n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];
			var n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];
			var n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];

			//TODO: make this more efficient
			//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )

			return (
				n41 * (
					+ n14 * n23 * n32
					 - n13 * n24 * n32
					 - n14 * n22 * n33
					 + n12 * n24 * n33
					 + n13 * n22 * n34
					 - n12 * n23 * n34
				) +
				n42 * (
					+ n11 * n23 * n34
					 - n11 * n24 * n33
					 + n14 * n21 * n33
					 - n13 * n21 * n34
					 + n13 * n24 * n31
					 - n14 * n23 * n31
				) +
				n43 * (
					+ n11 * n24 * n32
					 - n11 * n22 * n34
					 - n14 * n21 * n32
					 + n12 * n21 * n34
					 + n14 * n22 * n31
					 - n12 * n24 * n31
				) +
				n44 * (
					- n13 * n22 * n31
					 - n11 * n23 * n32
					 + n11 * n22 * n33
					 + n13 * n21 * n32
					 - n12 * n21 * n33
					 + n12 * n23 * n31
				)

			);

		},

		transpose: function () {

			var te = this.elements;
			var tmp;

			tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;
			tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;
			tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;

			tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;
			tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;
			tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;

			return this;

		},

		setPosition: function ( v ) {

			var te = this.elements;

			te[ 12 ] = v.x;
			te[ 13 ] = v.y;
			te[ 14 ] = v.z;

			return this;

		},

		getInverse: function ( m, throwOnDegenerate ) {

			// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
			var te = this.elements,
				me = m.elements,

				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],
				n12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],
				n13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],
				n14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],

				t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,
				t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,
				t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,
				t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;

			var det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;

			if ( det === 0 ) {

				var msg = "THREE.Matrix4.getInverse(): can't invert matrix, determinant is 0";

				if ( throwOnDegenerate === true ) {

					throw new Error( msg );

				} else {

					console.warn( msg );

				}

				return this.identity();

			}

			var detInv = 1 / det;

			te[ 0 ] = t11 * detInv;
			te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;
			te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;
			te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;

			te[ 4 ] = t12 * detInv;
			te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;
			te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;
			te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;

			te[ 8 ] = t13 * detInv;
			te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;
			te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;
			te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;

			te[ 12 ] = t14 * detInv;
			te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;
			te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;
			te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;

			return this;

		},

		scale: function ( v ) {

			var te = this.elements;
			var x = v.x, y = v.y, z = v.z;

			te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;
			te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;
			te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;
			te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;

			return this;

		},

		getMaxScaleOnAxis: function () {

			var te = this.elements;

			var scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];
			var scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];
			var scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];

			return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );

		},

		makeTranslation: function ( x, y, z ) {

			this.set(

				1, 0, 0, x,
				0, 1, 0, y,
				0, 0, 1, z,
				0, 0, 0, 1

			);

			return this;

		},

		makeRotationX: function ( theta ) {

			var c = Math.cos( theta ), s = Math.sin( theta );

			this.set(

				1, 0,  0, 0,
				0, c, - s, 0,
				0, s,  c, 0,
				0, 0,  0, 1

			);

			return this;

		},

		makeRotationY: function ( theta ) {

			var c = Math.cos( theta ), s = Math.sin( theta );

			this.set(

				 c, 0, s, 0,
				 0, 1, 0, 0,
				- s, 0, c, 0,
				 0, 0, 0, 1

			);

			return this;

		},

		makeRotationZ: function ( theta ) {

			var c = Math.cos( theta ), s = Math.sin( theta );

			this.set(

				c, - s, 0, 0,
				s,  c, 0, 0,
				0,  0, 1, 0,
				0,  0, 0, 1

			);

			return this;

		},

		makeRotationAxis: function ( axis, angle ) {

			// Based on http://www.gamedev.net/reference/articles/article1199.asp

			var c = Math.cos( angle );
			var s = Math.sin( angle );
			var t = 1 - c;
			var x = axis.x, y = axis.y, z = axis.z;
			var tx = t * x, ty = t * y;

			this.set(

				tx * x + c, tx * y - s * z, tx * z + s * y, 0,
				tx * y + s * z, ty * y + c, ty * z - s * x, 0,
				tx * z - s * y, ty * z + s * x, t * z * z + c, 0,
				0, 0, 0, 1

			);

			 return this;

		},

		makeScale: function ( x, y, z ) {

			this.set(

				x, 0, 0, 0,
				0, y, 0, 0,
				0, 0, z, 0,
				0, 0, 0, 1

			);

			return this;

		},

		makeShear: function ( x, y, z ) {

			this.set(

				1, y, z, 0,
				x, 1, z, 0,
				x, y, 1, 0,
				0, 0, 0, 1

			);

			return this;

		},

		compose: function ( position, quaternion, scale ) {

			this.makeRotationFromQuaternion( quaternion );
			this.scale( scale );
			this.setPosition( position );

			return this;

		},

		decompose: function () {

			var vector = new Vector3();
			var matrix = new Matrix4();

			return function decompose( position, quaternion, scale ) {

				var te = this.elements;

				var sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();
				var sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();
				var sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();

				// if determine is negative, we need to invert one scale
				var det = this.determinant();
				if ( det < 0 ) sx = - sx;

				position.x = te[ 12 ];
				position.y = te[ 13 ];
				position.z = te[ 14 ];

				// scale the rotation part
				matrix.copy( this );

				var invSX = 1 / sx;
				var invSY = 1 / sy;
				var invSZ = 1 / sz;

				matrix.elements[ 0 ] *= invSX;
				matrix.elements[ 1 ] *= invSX;
				matrix.elements[ 2 ] *= invSX;

				matrix.elements[ 4 ] *= invSY;
				matrix.elements[ 5 ] *= invSY;
				matrix.elements[ 6 ] *= invSY;

				matrix.elements[ 8 ] *= invSZ;
				matrix.elements[ 9 ] *= invSZ;
				matrix.elements[ 10 ] *= invSZ;

				quaternion.setFromRotationMatrix( matrix );

				scale.x = sx;
				scale.y = sy;
				scale.z = sz;

				return this;

			};

		}(),

		makePerspective: function ( left, right, top, bottom, near, far ) {

			if ( far === undefined ) {

				console.warn( 'THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.' );

			}

			var te = this.elements;
			var x = 2 * near / ( right - left );
			var y = 2 * near / ( top - bottom );

			var a = ( right + left ) / ( right - left );
			var b = ( top + bottom ) / ( top - bottom );
			var c = - ( far + near ) / ( far - near );
			var d = - 2 * far * near / ( far - near );

			te[ 0 ] = x;	te[ 4 ] = 0;	te[ 8 ] = a;	te[ 12 ] = 0;
			te[ 1 ] = 0;	te[ 5 ] = y;	te[ 9 ] = b;	te[ 13 ] = 0;
			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = c;	te[ 14 ] = d;
			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = - 1;	te[ 15 ] = 0;

			return this;

		},

		makeOrthographic: function ( left, right, top, bottom, near, far ) {

			var te = this.elements;
			var w = 1.0 / ( right - left );
			var h = 1.0 / ( top - bottom );
			var p = 1.0 / ( far - near );

			var x = ( right + left ) * w;
			var y = ( top + bottom ) * h;
			var z = ( far + near ) * p;

			te[ 0 ] = 2 * w;	te[ 4 ] = 0;	te[ 8 ] = 0;	te[ 12 ] = - x;
			te[ 1 ] = 0;	te[ 5 ] = 2 * h;	te[ 9 ] = 0;	te[ 13 ] = - y;
			te[ 2 ] = 0;	te[ 6 ] = 0;	te[ 10 ] = - 2 * p;	te[ 14 ] = - z;
			te[ 3 ] = 0;	te[ 7 ] = 0;	te[ 11 ] = 0;	te[ 15 ] = 1;

			return this;

		},

		equals: function ( matrix ) {

			var te = this.elements;
			var me = matrix.elements;

			for ( var i = 0; i < 16; i ++ ) {

				if ( te[ i ] !== me[ i ] ) return false;

			}

			return true;

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			for ( var i = 0; i < 16; i ++ ) {

				this.elements[ i ] = array[ i + offset ];

			}

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			var te = this.elements;

			array[ offset ] = te[ 0 ];
			array[ offset + 1 ] = te[ 1 ];
			array[ offset + 2 ] = te[ 2 ];
			array[ offset + 3 ] = te[ 3 ];

			array[ offset + 4 ] = te[ 4 ];
			array[ offset + 5 ] = te[ 5 ];
			array[ offset + 6 ] = te[ 6 ];
			array[ offset + 7 ] = te[ 7 ];

			array[ offset + 8 ] = te[ 8 ];
			array[ offset + 9 ] = te[ 9 ];
			array[ offset + 10 ] = te[ 10 ];
			array[ offset + 11 ] = te[ 11 ];

			array[ offset + 12 ] = te[ 12 ];
			array[ offset + 13 ] = te[ 13 ];
			array[ offset + 14 ] = te[ 14 ];
			array[ offset + 15 ] = te[ 15 ];

			return array;

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {

		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

		this.image = { data: data, width: width, height: height };

		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;

		this.generateMipmaps = false;
		this.flipY = false;
		this.unpackAlignment = 1;

	}

	DataTexture.prototype = Object.create( Texture.prototype );
	DataTexture.prototype.constructor = DataTexture;

	DataTexture.prototype.isDataTexture = true;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {

		images = images !== undefined ? images : [];
		mapping = mapping !== undefined ? mapping : CubeReflectionMapping;

		Texture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

		this.flipY = false;

	}

	CubeTexture.prototype = Object.create( Texture.prototype );
	CubeTexture.prototype.constructor = CubeTexture;

	CubeTexture.prototype.isCubeTexture = true;

	Object.defineProperty( CubeTexture.prototype, 'images', {

		get: function () {

			return this.image;

		},

		set: function ( value ) {

			this.image = value;

		}

	} );

	/**
	 * @author tschw
	 *
	 * Uniforms of a program.
	 * Those form a tree structure with a special top-level container for the root,
	 * which you get by calling 'new WebGLUniforms( gl, program, renderer )'.
	 *
	 *
	 * Properties of inner nodes including the top-level container:
	 *
	 * .seq - array of nested uniforms
	 * .map - nested uniforms by name
	 *
	 *
	 * Methods of all nodes except the top-level container:
	 *
	 * .setValue( gl, value, [renderer] )
	 *
	 * 		uploads a uniform value(s)
	 *  	the 'renderer' parameter is needed for sampler uniforms
	 *
	 *
	 * Static methods of the top-level container (renderer factorizations):
	 *
	 * .upload( gl, seq, values, renderer )
	 *
	 * 		sets uniforms in 'seq' to 'values[id].value'
	 *
	 * .seqWithValue( seq, values ) : filteredSeq
	 *
	 * 		filters 'seq' entries with corresponding entry in values
	 *
	 *
	 * Methods of the top-level container (renderer factorizations):
	 *
	 * .setValue( gl, name, value )
	 *
	 * 		sets uniform with  name 'name' to 'value'
	 *
	 * .set( gl, obj, prop )
	 *
	 * 		sets uniform from object and property with same name than uniform
	 *
	 * .setOptional( gl, obj, prop )
	 *
	 * 		like .set for an optional property of the object
	 *
	 */

	var emptyTexture = new Texture();
	var emptyCubeTexture = new CubeTexture();

	// --- Base for inner nodes (including the root) ---

	function UniformContainer() {

		this.seq = [];
		this.map = {};

	}

	// --- Utilities ---

	// Array Caches (provide typed arrays for temporary by size)

	var arrayCacheF32 = [];
	var arrayCacheI32 = [];

	// Float32Array caches used for uploading Matrix uniforms

	var mat4array = new Float32Array( 16 );
	var mat3array = new Float32Array( 9 );

	// Flattening for arrays of vectors and matrices

	function flatten( array, nBlocks, blockSize ) {

		var firstElem = array[ 0 ];

		if ( firstElem <= 0 || firstElem > 0 ) return array;
		// unoptimized: ! isNaN( firstElem )
		// see http://jacksondunstan.com/articles/983

		var n = nBlocks * blockSize,
			r = arrayCacheF32[ n ];

		if ( r === undefined ) {

			r = new Float32Array( n );
			arrayCacheF32[ n ] = r;

		}

		if ( nBlocks !== 0 ) {

			firstElem.toArray( r, 0 );

			for ( var i = 1, offset = 0; i !== nBlocks; ++ i ) {

				offset += blockSize;
				array[ i ].toArray( r, offset );

			}

		}

		return r;

	}

	// Texture unit allocation

	function allocTexUnits( renderer, n ) {

		var r = arrayCacheI32[ n ];

		if ( r === undefined ) {

			r = new Int32Array( n );
			arrayCacheI32[ n ] = r;

		}

		for ( var i = 0; i !== n; ++ i )
			r[ i ] = renderer.allocTextureUnit();

		return r;

	}

	// --- Setters ---

	// Note: Defining these methods externally, because they come in a bunch
	// and this way their names minify.

	// Single scalar

	function setValue1f( gl, v ) { gl.uniform1f( this.addr, v ); }
	function setValue1i( gl, v ) { gl.uniform1i( this.addr, v ); }

	// Single float vector (from flat array or THREE.VectorN)

	function setValue2fv( gl, v ) {

		if ( v.x === undefined ) gl.uniform2fv( this.addr, v );
		else gl.uniform2f( this.addr, v.x, v.y );

	}

	function setValue3fv( gl, v ) {

		if ( v.x !== undefined )
			gl.uniform3f( this.addr, v.x, v.y, v.z );
		else if ( v.r !== undefined )
			gl.uniform3f( this.addr, v.r, v.g, v.b );
		else
			gl.uniform3fv( this.addr, v );

	}

	function setValue4fv( gl, v ) {

		if ( v.x === undefined ) gl.uniform4fv( this.addr, v );
		else gl.uniform4f( this.addr, v.x, v.y, v.z, v.w );

	}

	// Single matrix (from flat array or MatrixN)

	function setValue2fm( gl, v ) {

		gl.uniformMatrix2fv( this.addr, false, v.elements || v );

	}

	function setValue3fm( gl, v ) {

		if ( v.elements === undefined ) {

			gl.uniformMatrix3fv( this.addr, false, v );

		} else {

			mat3array.set( v.elements );
			gl.uniformMatrix3fv( this.addr, false, mat3array );

		}

	}

	function setValue4fm( gl, v ) {

		if ( v.elements === undefined ) {

			gl.uniformMatrix4fv( this.addr, false, v );

		} else {

			mat4array.set( v.elements );
			gl.uniformMatrix4fv( this.addr, false, mat4array );

		}

	}

	// Single texture (2D / Cube)

	function setValueT1( gl, v, renderer ) {

		var unit = renderer.allocTextureUnit();
		gl.uniform1i( this.addr, unit );
		renderer.setTexture2D( v || emptyTexture, unit );

	}

	function setValueT6( gl, v, renderer ) {

		var unit = renderer.allocTextureUnit();
		gl.uniform1i( this.addr, unit );
		renderer.setTextureCube( v || emptyCubeTexture, unit );

	}

	// Integer / Boolean vectors or arrays thereof (always flat arrays)

	function setValue2iv( gl, v ) { gl.uniform2iv( this.addr, v ); }
	function setValue3iv( gl, v ) { gl.uniform3iv( this.addr, v ); }
	function setValue4iv( gl, v ) { gl.uniform4iv( this.addr, v ); }

	// Helper to pick the right setter for the singular case

	function getSingularSetter( type ) {

		switch ( type ) {

			case 0x1406: return setValue1f; // FLOAT
			case 0x8b50: return setValue2fv; // _VEC2
			case 0x8b51: return setValue3fv; // _VEC3
			case 0x8b52: return setValue4fv; // _VEC4

			case 0x8b5a: return setValue2fm; // _MAT2
			case 0x8b5b: return setValue3fm; // _MAT3
			case 0x8b5c: return setValue4fm; // _MAT4

			case 0x8b5e: case 0x8d66: return setValueT1; // SAMPLER_2D, SAMPLER_EXTERNAL_OES
			case 0x8b60: return setValueT6; // SAMPLER_CUBE

			case 0x1404: case 0x8b56: return setValue1i; // INT, BOOL
			case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2
			case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3
			case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4

		}

	}

	// Array of scalars

	function setValue1fv( gl, v ) { gl.uniform1fv( this.addr, v ); }
	function setValue1iv( gl, v ) { gl.uniform1iv( this.addr, v ); }

	// Array of vectors (flat or from THREE classes)

	function setValueV2a( gl, v ) {

		gl.uniform2fv( this.addr, flatten( v, this.size, 2 ) );

	}

	function setValueV3a( gl, v ) {

		gl.uniform3fv( this.addr, flatten( v, this.size, 3 ) );

	}

	function setValueV4a( gl, v ) {

		gl.uniform4fv( this.addr, flatten( v, this.size, 4 ) );

	}

	// Array of matrices (flat or from THREE clases)

	function setValueM2a( gl, v ) {

		gl.uniformMatrix2fv( this.addr, false, flatten( v, this.size, 4 ) );

	}

	function setValueM3a( gl, v ) {

		gl.uniformMatrix3fv( this.addr, false, flatten( v, this.size, 9 ) );

	}

	function setValueM4a( gl, v ) {

		gl.uniformMatrix4fv( this.addr, false, flatten( v, this.size, 16 ) );

	}

	// Array of textures (2D / Cube)

	function setValueT1a( gl, v, renderer ) {

		var n = v.length,
			units = allocTexUnits( renderer, n );

		gl.uniform1iv( this.addr, units );

		for ( var i = 0; i !== n; ++ i ) {

			renderer.setTexture2D( v[ i ] || emptyTexture, units[ i ] );

		}

	}

	function setValueT6a( gl, v, renderer ) {

		var n = v.length,
			units = allocTexUnits( renderer, n );

		gl.uniform1iv( this.addr, units );

		for ( var i = 0; i !== n; ++ i ) {

			renderer.setTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );

		}

	}

	// Helper to pick the right setter for a pure (bottom-level) array

	function getPureArraySetter( type ) {

		switch ( type ) {

			case 0x1406: return setValue1fv; // FLOAT
			case 0x8b50: return setValueV2a; // _VEC2
			case 0x8b51: return setValueV3a; // _VEC3
			case 0x8b52: return setValueV4a; // _VEC4

			case 0x8b5a: return setValueM2a; // _MAT2
			case 0x8b5b: return setValueM3a; // _MAT3
			case 0x8b5c: return setValueM4a; // _MAT4

			case 0x8b5e: return setValueT1a; // SAMPLER_2D
			case 0x8b60: return setValueT6a; // SAMPLER_CUBE

			case 0x1404: case 0x8b56: return setValue1iv; // INT, BOOL
			case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2
			case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3
			case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4

		}

	}

	// --- Uniform Classes ---

	function SingleUniform( id, activeInfo, addr ) {

		this.id = id;
		this.addr = addr;
		this.setValue = getSingularSetter( activeInfo.type );

		// this.path = activeInfo.name; // DEBUG

	}

	function PureArrayUniform( id, activeInfo, addr ) {

		this.id = id;
		this.addr = addr;
		this.size = activeInfo.size;
		this.setValue = getPureArraySetter( activeInfo.type );

		// this.path = activeInfo.name; // DEBUG

	}

	function StructuredUniform( id ) {

		this.id = id;

		UniformContainer.call( this ); // mix-in

	}

	StructuredUniform.prototype.setValue = function ( gl, value ) {

		// Note: Don't need an extra 'renderer' parameter, since samplers
		// are not allowed in structured uniforms.

		var seq = this.seq;

		for ( var i = 0, n = seq.length; i !== n; ++ i ) {

			var u = seq[ i ];
			u.setValue( gl, value[ u.id ] );

		}

	};

	// --- Top-level ---

	// Parser - builds up the property tree from the path strings

	var RePathPart = /([\w\d_]+)(\])?(\[|\.)?/g;

	// extracts
	// 	- the identifier (member name or array index)
	//  - followed by an optional right bracket (found when array index)
	//  - followed by an optional left bracket or dot (type of subscript)
	//
	// Note: These portions can be read in a non-overlapping fashion and
	// allow straightforward parsing of the hierarchy that WebGL encodes
	// in the uniform names.

	function addUniform( container, uniformObject ) {

		container.seq.push( uniformObject );
		container.map[ uniformObject.id ] = uniformObject;

	}

	function parseUniform( activeInfo, addr, container ) {

		var path = activeInfo.name,
			pathLength = path.length;

		// reset RegExp object, because of the early exit of a previous run
		RePathPart.lastIndex = 0;

		for ( ; ; ) {

			var match = RePathPart.exec( path ),
				matchEnd = RePathPart.lastIndex,

				id = match[ 1 ],
				idIsIndex = match[ 2 ] === ']',
				subscript = match[ 3 ];

			if ( idIsIndex ) id = id | 0; // convert to integer

			if ( subscript === undefined || subscript === '[' && matchEnd + 2 === pathLength ) {

				// bare name or "pure" bottom-level array "[0]" suffix

				addUniform( container, subscript === undefined ?
						new SingleUniform( id, activeInfo, addr ) :
						new PureArrayUniform( id, activeInfo, addr ) );

				break;

			} else {

				// step into inner node / create it in case it doesn't exist

				var map = container.map, next = map[ id ];

				if ( next === undefined ) {

					next = new StructuredUniform( id );
					addUniform( container, next );

				}

				container = next;

			}

		}

	}

	// Root Container

	function WebGLUniforms( gl, program, renderer ) {

		UniformContainer.call( this );

		this.renderer = renderer;

		var n = gl.getProgramParameter( program, gl.ACTIVE_UNIFORMS );

		for ( var i = 0; i < n; ++ i ) {

			var info = gl.getActiveUniform( program, i ),
				path = info.name,
				addr = gl.getUniformLocation( program, path );

			parseUniform( info, addr, this );

		}

	}

	WebGLUniforms.prototype.setValue = function ( gl, name, value ) {

		var u = this.map[ name ];

		if ( u !== undefined ) u.setValue( gl, value, this.renderer );

	};

	WebGLUniforms.prototype.setOptional = function ( gl, object, name ) {

		var v = object[ name ];

		if ( v !== undefined ) this.setValue( gl, name, v );

	};


	// Static interface

	WebGLUniforms.upload = function ( gl, seq, values, renderer ) {

		for ( var i = 0, n = seq.length; i !== n; ++ i ) {

			var u = seq[ i ],
				v = values[ u.id ];

			if ( v.needsUpdate !== false ) {

				// note: always updating when .needsUpdate is undefined
				u.setValue( gl, v.value, renderer );

			}

		}

	};

	WebGLUniforms.seqWithValue = function ( seq, values ) {

		var r = [];

		for ( var i = 0, n = seq.length; i !== n; ++ i ) {

			var u = seq[ i ];
			if ( u.id in values ) r.push( u );

		}

		return r;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	var ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,
		'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,
		'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,
		'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,
		'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,
		'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,
		'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,
		'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,
		'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,
		'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,
		'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,
		'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,
		'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,
		'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,
		'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,
		'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,
		'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,
		'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,
		'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,
		'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,
		'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,
		'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,
		'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,
		'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };

	function Color( r, g, b ) {

		if ( g === undefined && b === undefined ) {

			// r is THREE.Color, hex or string
			return this.set( r );

		}

		return this.setRGB( r, g, b );

	}

	Object.assign( Color.prototype, {

		isColor: true,

		r: 1, g: 1, b: 1,

		set: function ( value ) {

			if ( value && value.isColor ) {

				this.copy( value );

			} else if ( typeof value === 'number' ) {

				this.setHex( value );

			} else if ( typeof value === 'string' ) {

				this.setStyle( value );

			}

			return this;

		},

		setScalar: function ( scalar ) {

			this.r = scalar;
			this.g = scalar;
			this.b = scalar;

			return this;

		},

		setHex: function ( hex ) {

			hex = Math.floor( hex );

			this.r = ( hex >> 16 & 255 ) / 255;
			this.g = ( hex >> 8 & 255 ) / 255;
			this.b = ( hex & 255 ) / 255;

			return this;

		},

		setRGB: function ( r, g, b ) {

			this.r = r;
			this.g = g;
			this.b = b;

			return this;

		},

		setHSL: function () {

			function hue2rgb( p, q, t ) {

				if ( t < 0 ) t += 1;
				if ( t > 1 ) t -= 1;
				if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;
				if ( t < 1 / 2 ) return q;
				if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );
				return p;

			}

			return function setHSL( h, s, l ) {

				// h,s,l ranges are in 0.0 - 1.0
				h = _Math.euclideanModulo( h, 1 );
				s = _Math.clamp( s, 0, 1 );
				l = _Math.clamp( l, 0, 1 );

				if ( s === 0 ) {

					this.r = this.g = this.b = l;

				} else {

					var p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );
					var q = ( 2 * l ) - p;

					this.r = hue2rgb( q, p, h + 1 / 3 );
					this.g = hue2rgb( q, p, h );
					this.b = hue2rgb( q, p, h - 1 / 3 );

				}

				return this;

			};

		}(),

		setStyle: function ( style ) {

			function handleAlpha( string ) {

				if ( string === undefined ) return;

				if ( parseFloat( string ) < 1 ) {

					console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );

				}

			}


			var m;

			if ( m = /^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec( style ) ) {

				// rgb / hsl

				var color;
				var name = m[ 1 ];
				var components = m[ 2 ];

				switch ( name ) {

					case 'rgb':
					case 'rgba':

						if ( color = /^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {

							// rgb(255,0,0) rgba(255,0,0,0.5)
							this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;
							this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;
							this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;

							handleAlpha( color[ 5 ] );

							return this;

						}

						if ( color = /^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {

							// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
							this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;
							this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;
							this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;

							handleAlpha( color[ 5 ] );

							return this;

						}

						break;

					case 'hsl':
					case 'hsla':

						if ( color = /^([0-9]*\.?[0-9]+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) {

							// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
							var h = parseFloat( color[ 1 ] ) / 360;
							var s = parseInt( color[ 2 ], 10 ) / 100;
							var l = parseInt( color[ 3 ], 10 ) / 100;

							handleAlpha( color[ 5 ] );

							return this.setHSL( h, s, l );

						}

						break;

				}

			} else if ( m = /^\#([A-Fa-f0-9]+)$/.exec( style ) ) {

				// hex color

				var hex = m[ 1 ];
				var size = hex.length;

				if ( size === 3 ) {

					// #ff0
					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;
					this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;
					this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;

					return this;

				} else if ( size === 6 ) {

					// #ff0000
					this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;
					this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;
					this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;

					return this;

				}

			}

			if ( style && style.length > 0 ) {

				// color keywords
				var hex = ColorKeywords[ style ];

				if ( hex !== undefined ) {

					// red
					this.setHex( hex );

				} else {

					// unknown color
					console.warn( 'THREE.Color: Unknown color ' + style );

				}

			}

			return this;

		},

		clone: function () {

			return new this.constructor( this.r, this.g, this.b );

		},

		copy: function ( color ) {

			this.r = color.r;
			this.g = color.g;
			this.b = color.b;

			return this;

		},

		copyGammaToLinear: function ( color, gammaFactor ) {

			if ( gammaFactor === undefined ) gammaFactor = 2.0;

			this.r = Math.pow( color.r, gammaFactor );
			this.g = Math.pow( color.g, gammaFactor );
			this.b = Math.pow( color.b, gammaFactor );

			return this;

		},

		copyLinearToGamma: function ( color, gammaFactor ) {

			if ( gammaFactor === undefined ) gammaFactor = 2.0;

			var safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;

			this.r = Math.pow( color.r, safeInverse );
			this.g = Math.pow( color.g, safeInverse );
			this.b = Math.pow( color.b, safeInverse );

			return this;

		},

		convertGammaToLinear: function () {

			var r = this.r, g = this.g, b = this.b;

			this.r = r * r;
			this.g = g * g;
			this.b = b * b;

			return this;

		},

		convertLinearToGamma: function () {

			this.r = Math.sqrt( this.r );
			this.g = Math.sqrt( this.g );
			this.b = Math.sqrt( this.b );

			return this;

		},

		getHex: function () {

			return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;

		},

		getHexString: function () {

			return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );

		},

		getHSL: function ( optionalTarget ) {

			// h,s,l ranges are in 0.0 - 1.0

			var hsl = optionalTarget || { h: 0, s: 0, l: 0 };

			var r = this.r, g = this.g, b = this.b;

			var max = Math.max( r, g, b );
			var min = Math.min( r, g, b );

			var hue, saturation;
			var lightness = ( min + max ) / 2.0;

			if ( min === max ) {

				hue = 0;
				saturation = 0;

			} else {

				var delta = max - min;

				saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );

				switch ( max ) {

					case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;
					case g: hue = ( b - r ) / delta + 2; break;
					case b: hue = ( r - g ) / delta + 4; break;

				}

				hue /= 6;

			}

			hsl.h = hue;
			hsl.s = saturation;
			hsl.l = lightness;

			return hsl;

		},

		getStyle: function () {

			return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';

		},

		offsetHSL: function ( h, s, l ) {

			var hsl = this.getHSL();

			hsl.h += h; hsl.s += s; hsl.l += l;

			this.setHSL( hsl.h, hsl.s, hsl.l );

			return this;

		},

		add: function ( color ) {

			this.r += color.r;
			this.g += color.g;
			this.b += color.b;

			return this;

		},

		addColors: function ( color1, color2 ) {

			this.r = color1.r + color2.r;
			this.g = color1.g + color2.g;
			this.b = color1.b + color2.b;

			return this;

		},

		addScalar: function ( s ) {

			this.r += s;
			this.g += s;
			this.b += s;

			return this;

		},

		sub: function( color ) {

			this.r = Math.max( 0, this.r - color.r );
			this.g = Math.max( 0, this.g - color.g );
			this.b = Math.max( 0, this.b - color.b );

			return this;

		},

		multiply: function ( color ) {

			this.r *= color.r;
			this.g *= color.g;
			this.b *= color.b;

			return this;

		},

		multiplyScalar: function ( s ) {

			this.r *= s;
			this.g *= s;
			this.b *= s;

			return this;

		},

		lerp: function ( color, alpha ) {

			this.r += ( color.r - this.r ) * alpha;
			this.g += ( color.g - this.g ) * alpha;
			this.b += ( color.b - this.b ) * alpha;

			return this;

		},

		equals: function ( c ) {

			return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			this.r = array[ offset ];
			this.g = array[ offset + 1 ];
			this.b = array[ offset + 2 ];

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this.r;
			array[ offset + 1 ] = this.g;
			array[ offset + 2 ] = this.b;

			return array;

		},

		toJSON: function () {

			return this.getHex();

		}

	} );

	/**
	 * Uniforms library for shared webgl shaders
	 */

	var UniformsLib = {

		common: {

			diffuse: { value: new Color( 0xeeeeee ) },
			opacity: { value: 1.0 },

			map: { value: null },
			offsetRepeat: { value: new Vector4( 0, 0, 1, 1 ) },

			specularMap: { value: null },
			alphaMap: { value: null },

			envMap: { value: null },
			flipEnvMap: { value: - 1 },
			reflectivity: { value: 1.0 },
			refractionRatio: { value: 0.98 }

		},

		aomap: {

			aoMap: { value: null },
			aoMapIntensity: { value: 1 }

		},

		lightmap: {

			lightMap: { value: null },
			lightMapIntensity: { value: 1 }

		},

		emissivemap: {

			emissiveMap: { value: null }

		},

		bumpmap: {

			bumpMap: { value: null },
			bumpScale: { value: 1 }

		},

		normalmap: {

			normalMap: { value: null },
			normalScale: { value: new Vector2( 1, 1 ) }

		},

		displacementmap: {

			displacementMap: { value: null },
			displacementScale: { value: 1 },
			displacementBias: { value: 0 }

		},

		roughnessmap: {

			roughnessMap: { value: null }

		},

		metalnessmap: {

			metalnessMap: { value: null }

		},

		gradientmap: {

			gradientMap: { value: null }

		},

		fog: {

			fogDensity: { value: 0.00025 },
			fogNear: { value: 1 },
			fogFar: { value: 2000 },
			fogColor: { value: new Color( 0xffffff ) }

		},

		lights: {

			ambientLightColor: { value: [] },

			directionalLights: { value: [], properties: {
				direction: {},
				color: {},

				shadow: {},
				shadowBias: {},
				shadowRadius: {},
				shadowMapSize: {}
			} },

			directionalShadowMap: { value: [] },
			directionalShadowMatrix: { value: [] },

			spotLights: { value: [], properties: {
				color: {},
				position: {},
				direction: {},
				distance: {},
				coneCos: {},
				penumbraCos: {},
				decay: {},

				shadow: {},
				shadowBias: {},
				shadowRadius: {},
				shadowMapSize: {}
			} },

			spotShadowMap: { value: [] },
			spotShadowMatrix: { value: [] },

			pointLights: { value: [], properties: {
				color: {},
				position: {},
				decay: {},
				distance: {},

				shadow: {},
				shadowBias: {},
				shadowRadius: {},
				shadowMapSize: {}
			} },

			pointShadowMap: { value: [] },
			pointShadowMatrix: { value: [] },

			hemisphereLights: { value: [], properties: {
				direction: {},
				skyColor: {},
				groundColor: {}
			} },

			// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
			rectAreaLights: { value: [], properties: {
				color: {},
				position: {},
				width: {},
				height: {}
			} }

		},

		points: {

			diffuse: { value: new Color( 0xeeeeee ) },
			opacity: { value: 1.0 },
			size: { value: 1.0 },
			scale: { value: 1.0 },
			map: { value: null },
			offsetRepeat: { value: new Vector4( 0, 0, 1, 1 ) }

		}

	};

	/**
	 * Uniform Utilities
	 */

	var UniformsUtils = {

		merge: function ( uniforms ) {

			var merged = {};

			for ( var u = 0; u < uniforms.length; u ++ ) {

				var tmp = this.clone( uniforms[ u ] );

				for ( var p in tmp ) {

					merged[ p ] = tmp[ p ];

				}

			}

			return merged;

		},

		clone: function ( uniforms_src ) {

			var uniforms_dst = {};

			for ( var u in uniforms_src ) {

				uniforms_dst[ u ] = {};

				for ( var p in uniforms_src[ u ] ) {

					var parameter_src = uniforms_src[ u ][ p ];

					if ( parameter_src && ( parameter_src.isColor ||
						parameter_src.isMatrix3 || parameter_src.isMatrix4 ||
						parameter_src.isVector2 || parameter_src.isVector3 || parameter_src.isVector4 ||
						parameter_src.isTexture ) ) {

						uniforms_dst[ u ][ p ] = parameter_src.clone();

					} else if ( Array.isArray( parameter_src ) ) {

						uniforms_dst[ u ][ p ] = parameter_src.slice();

					} else {

						uniforms_dst[ u ][ p ] = parameter_src;

					}

				}

			}

			return uniforms_dst;

		}

	};

	var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif\n";

	var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif\n";

	var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif\n";

	var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif\n";

	var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";

	var begin_vertex = "\nvec3 transformed = vec3( position );\n";

	var beginnormal_vertex = "\nvec3 objectNormal = vec3( normal );\n";

	var bsdfs = "float punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\tif( decayExponent > 0.0 ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\treturn distanceFalloff * maxDistanceCutoffFactor;\n#else\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n#endif\n\t}\n\treturn 1.0;\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE  = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS  = 0.5 / LUT_SIZE;\n\tfloat theta = acos( dot( N, V ) );\n\tvec2 uv = vec2(\n\t\tsqrt( saturate( roughness ) ),\n\t\tsaturate( theta / ( 0.5 * PI ) ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.86267 + (0.49788 + 0.01436 * y ) * y;\n\tfloat b = 3.45068 + (4.18814 + y) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = (x > 0.0) ? v : 0.5 * inversesqrt( 1.0 - x * x ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transpose( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tvec3 result = vec3( LTC_ClippedSphereFormFactor( vectorFormFactor ) );\n\treturn result;\n}\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\n\treturn specularColor * AB.x + AB.y;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n";

	var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif\n";

	var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; ++ i ) {\n\t\tvec4 plane = clippingPlanes[ i ];\n\t\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t\t\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; ++ i ) {\n\t\t\tvec4 plane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\tif ( clipped ) discard;\n\t\n\t#endif\n#endif\n";

	var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\n\t\tvarying vec3 vViewPosition;\n\t#endif\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif\n";

	var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvarying vec3 vViewPosition;\n#endif\n";

	var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n";

	var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif";

	var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif\n";

	var color_pars_vertex = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";

	var color_vertex = "#ifdef USE_COLOR\n\tvColor.xyz = color.xyz;\n#endif";

	var common = "#define PI 3.14159265359\n#define PI2 6.28318530718\n#define PI_HALF 1.5707963267949\n#define RECIPROCAL_PI 0.31830988618\n#define RECIPROCAL_PI2 0.15915494\n#define LOG2 1.442695\n#define EPSILON 1e-6\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transpose( const in mat3 v ) {\n\tmat3 tmp;\n\ttmp[0] = vec3(v[0].x, v[1].x, v[2].x);\n\ttmp[1] = vec3(v[0].y, v[1].y, v[2].y);\n\ttmp[2] = vec3(v[0].z, v[1].z, v[2].z);\n\treturn tmp;\n}\n";

	var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n#define cubeUV_textureSize (1024.0)\nint getFaceFromDirection(vec3 direction) {\n\tvec3 absDirection = abs(direction);\n\tint face = -1;\n\tif( absDirection.x > absDirection.z ) {\n\t\tif(absDirection.x > absDirection.y )\n\t\t\tface = direction.x > 0.0 ? 0 : 3;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\telse {\n\t\tif(absDirection.z > absDirection.y )\n\t\t\tface = direction.z > 0.0 ? 2 : 5;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\treturn face;\n}\n#define cubeUV_maxLods1  (log2(cubeUV_textureSize*0.25) - 1.0)\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\n\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\n\tfloat dxRoughness = dFdx(roughness);\n\tfloat dyRoughness = dFdy(roughness);\n\tvec3 dx = dFdx( vec * scale * dxRoughness );\n\tvec3 dy = dFdy( vec * scale * dyRoughness );\n\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\n\td = clamp(d, 1.0, cubeUV_rangeClamp);\n\tfloat mipLevel = 0.5 * log2(d);\n\treturn vec2(floor(mipLevel), fract(mipLevel));\n}\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\n\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\n\tfloat a = 16.0 * cubeUV_rcpTextureSize;\n\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\n\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\n\tfloat powScale = exp2_packed.x * exp2_packed.y;\n\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\n\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\n\tbool bRes = mipLevel == 0.0;\n\tscale =  bRes && (scale < a) ? a : scale;\n\tvec3 r;\n\tvec2 offset;\n\tint face = getFaceFromDirection(direction);\n\tfloat rcpPowScale = 1.0 / powScale;\n\tif( face == 0) {\n\t\tr = vec3(direction.x, -direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 1) {\n\t\tr = vec3(direction.y, direction.x, direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 2) {\n\t\tr = vec3(direction.z, direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 3) {\n\t\tr = vec3(direction.x, direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse if( face == 4) {\n\t\tr = vec3(direction.y, direction.x, -direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse {\n\t\tr = vec3(direction.z, -direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\tr = normalize(r);\n\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\n\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\n\tvec2 base = offset + vec2( texelOffset );\n\treturn base + s * ( scale - 2.0 * texelOffset );\n}\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\nvec4 textureCubeUV(vec3 reflectedDirection, float roughness ) {\n\tfloat roughnessVal = roughness* cubeUV_maxLods3;\n\tfloat r1 = floor(roughnessVal);\n\tfloat r2 = r1 + 1.0;\n\tfloat t = fract(roughnessVal);\n\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\n\tfloat s = mipInfo.y;\n\tfloat level0 = mipInfo.x;\n\tfloat level1 = level0 + 1.0;\n\tlevel1 = level1 > 5.0 ? 5.0 : level1;\n\tlevel0 += min( floor( s + 0.5 ), 5.0 );\n\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\n\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\n\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\n\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\n\tvec4 result = mix(color10, color20, t);\n\treturn vec4(result.rgb, 1.0);\n}\n#endif\n";

	var defaultnormal_vertex = "vec3 transformedNormal = normalMatrix * objectNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n";

	var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif\n";

	var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\n#endif\n";

	var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif\n";

	var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif\n";

	var encodings_fragment = "  gl_FragColor = linearToOutputTexel( gl_FragColor );\n";

	var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.xyz * value.w * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat M      = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM            = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.x, max( value.g, value.b ) );\n\tfloat D      = max( maxRange / maxRGB, 1.0 );\n\tD            = min( floor( D ) / 255.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value )  {\n\tvec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\n\tXp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract(Le);\n\tvResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\n\treturn vec4( max(vRGB, 0.0), 1.0 );\n}\n";

	var envmap_fragment = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, flipNormal * vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\tvec2 sampleUV;\n\t\tsampleUV.y = asin( flipNormal * reflectVec.y ) * RECIPROCAL_PI + 0.5;\n\t\tsampleUV.x = atan( flipNormal * reflectVec.z, flipNormal * reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\tvec4 envColor = texture2D( envMap, sampleUV );\n\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\tvec3 reflectView = flipNormal * normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\n\t\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\tenvColor = envMapTexelToLinear( envColor );\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif\n";

	var envmap_pars_fragment = "#if defined( USE_ENVMAP ) || defined( PHYSICAL )\n\tuniform float reflectivity;\n\tuniform float envMapIntensity;\n#endif\n#ifdef USE_ENVMAP\n\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\n\t\tvarying vec3 vWorldPosition;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\tuniform float flipEnvMap;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif\n";

	var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif\n";

	var envmap_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif\n";

	var fog_vertex = "\n#ifdef USE_FOG\nfogDepth = -mvPosition.z;\n#endif";

	var fog_pars_vertex = "#ifdef USE_FOG\n  varying float fogDepth;\n#endif\n";

	var fog_fragment = "#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * fogDepth * fogDepth * LOG2 ) );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif\n";

	var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif\n";

	var gradientmap_pars_fragment = "#ifdef TOON\n\tuniform sampler2D gradientMap;\n\tvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\t\tfloat dotNL = dot( normal, lightDirection );\n\t\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t\t#ifdef USE_GRADIENTMAP\n\t\t\treturn texture2D( gradientMap, coord ).rgb;\n\t\t#else\n\t\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t\t#endif\n\t}\n#endif\n";

	var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n#endif\n";

	var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";

	var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\n#if NUM_POINT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_DIR_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n#endif\n";

	var lights_pars = "uniform vec3 ambientLightColor;\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight  ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltcMat;\tuniform sampler2D ltcMag;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif\n#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( queryVec, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar - 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\tvec4 envMapColor = textureCubeUV(queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent));\n\t\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\t\tvec2 sampleUV;\n\t\t\tsampleUV.y = saturate( reflectVec.y * 0.5 + 0.5 );\n\t\t\tsampleUV.x = atan( reflectVec.z, reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\t\tvec3 reflectView = normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif\n";

	var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;\n";

	var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3\tdiffuseColor;\n\tvec3\tspecularColor;\n\tfloat\tspecularShininess;\n\tfloat\tspecularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifdef TOON\n\t\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#else\n\t\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\t\tvec3 irradiance = dotNL * directLight.color;\n\t#endif\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)\n";

	var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\n#ifdef STANDARD\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.clearCoat = saturate( clearCoat );\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\n#endif\n";

	var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3\tdiffuseColor;\n\tfloat\tspecularRoughness;\n\tvec3\tspecularColor;\n\t#ifndef STANDARD\n\t\tfloat clearCoat;\n\t\tfloat clearCoatRoughness;\n\t#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos - halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos + halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos + halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos - halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tfloat norm = texture2D( ltcMag, uv ).a;\n\t\tvec4 t = texture2D( ltcMat, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3(   1,   0, t.y ),\n\t\t\tvec3(   0, t.z,   0 ),\n\t\t\tvec3( t.w,   0, t.x )\n\t\t);\n\t\treflectedLight.directSpecular += lightColor * material.specularColor * norm * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifndef STANDARD\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\n\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#ifndef STANDARD\n\t\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifndef STANDARD\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\tfloat dotNL = dotNV;\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\n\t#ifndef STANDARD\n\t\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\n#define Material_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.specularRoughness )\n#define Material_ClearCoat_BlinnShininessExponent( material )   GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}\n";

	var lights_template = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = normalize( vViewPosition );\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\t#ifdef USE_LIGHTMAP\n\t\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tirradiance += getLightProbeIndirectIrradiance( geometry, 8 );\n\t#endif\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tvec3 radiance = getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), 8 );\n\t#ifndef STANDARD\n\t\tvec3 clearCoatRadiance = getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), 8 );\n\t#else\n\t\tvec3 clearCoatRadiance = vec3( 0.0 );\n\t#endif\n\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\n#endif\n";

	var logdepthbuf_fragment = "#if defined(USE_LOGDEPTHBUF) && defined(USE_LOGDEPTHBUF_EXT)\n\tgl_FragDepthEXT = log2(vFragDepth) * logDepthBufFC * 0.5;\n#endif";

	var logdepthbuf_pars_fragment = "#ifdef USE_LOGDEPTHBUF\n\tuniform float logDepthBufFC;\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n#endif\n";

	var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n\tuniform float logDepthBufFC;\n#endif";

	var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\tgl_Position.z = log2(max( EPSILON, gl_Position.w + 1.0 )) * logDepthBufFC;\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t#else\n\t\tgl_Position.z = (gl_Position.z - 1.0) * gl_Position.w;\n\t#endif\n#endif\n";

	var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif\n";

	var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n";

	var map_particle_fragment = "#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, vec2( gl_PointCoord.x, 1.0 - gl_PointCoord.y ) * offsetRepeat.zw + offsetRepeat.xy );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n";

	var map_particle_pars_fragment = "#ifdef USE_MAP\n\tuniform vec4 offsetRepeat;\n\tuniform sampler2D map;\n#endif\n";

	var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif\n";

	var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";

	var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\n\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\n\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\n\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\n#endif\n";

	var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\t#ifndef USE_MORPHNORMALS\n\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif";

	var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\n\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\n\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\n\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\n\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\n\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\n\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\n\t#endif\n#endif\n";

	var normal_flip = "#ifdef DOUBLE_SIDED\n\tfloat flipNormal = ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n#else\n\tfloat flipNormal = 1.0;\n#endif\n";

	var normal_fragment = "#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal ) * flipNormal;\n#endif\n#ifdef USE_NORMALMAP\n\tnormal = perturbNormal2Arb( -vViewPosition, normal );\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif\n";

	var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 S = normalize( q0 * st1.t - q1 * st0.t );\n\t\tvec3 T = normalize( -q0 * st1.s + q1 * st0.s );\n\t\tvec3 N = normalize( surf_norm );\n\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\tmapN.xy = normalScale * mapN.xy;\n\t\tmat3 tsn = mat3( S, T, N );\n\t\treturn normalize( tsn * mapN );\n\t}\n#endif\n";

	var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 1.0 - 2.0 * rgb.xyz;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256.,  256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}\n";

	var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif\n";

	var project_vertex = "vec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\ngl_Position = projectionMatrix * mvPosition;\n";

	var dithering_fragment = "#if defined( DITHERING )\n  gl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif\n";

	var dithering_pars_fragment = "#if defined( DITHERING )\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif\n";

	var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif\n";

	var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";

	var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\n\t\tconst vec2 offset = vec2( 0.0, 1.0 );\n\t\tvec2 texelSize = vec2( 1.0 ) / size;\n\t\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\n\t\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\n\t\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\n\t\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\n\t\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\n\t\tvec2 f = fract( uv * size + 0.5 );\n\t\tfloat a = mix( lb, lt, f.y );\n\t\tfloat b = mix( rb, rt, f.y );\n\t\tfloat c = mix( a, b, f.x );\n\t\treturn c;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tshadow = (\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\tfloat dp = ( length( lightToPosition ) - shadowBias ) / 1000.0;\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif\n";

	var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n#endif\n";

	var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n#endif\n";

	var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tDirectionalLight directionalLight;\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tSpotLight spotLight;\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tPointLight pointLight;\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#endif\n\treturn shadow;\n}\n";

	var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";

	var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif\n";

	var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif\n";

	var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix  = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n#endif\n";

	var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";

	var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";

	var tonemapping_fragment = "#if defined( TONE_MAPPING )\n  gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif\n";

	var tonemapping_pars_fragment = "#define saturate(a) clamp( a, 0.0, 1.0 )\nuniform float toneMappingExposure;\nuniform float toneMappingWhitePoint;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\nvec3 Uncharted2ToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\n";

	var uv_pars_fragment = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n#endif";

	var uv_pars_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n\tuniform vec4 offsetRepeat;\n#endif\n";

	var uv_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvUv = uv * offsetRepeat.zw + offsetRepeat.xy;\n#endif";

	var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";

	var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n#endif";

	var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = uv2;\n#endif";

	var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( PHONG ) || defined( PHYSICAL ) || defined( LAMBERT ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n#endif\n";

	var cube_frag = "uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\n\tgl_FragColor.a *= opacity;\n}\n";

	var cube_vert = "varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}\n";

	var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( gl_FragCoord.z ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\n\t#endif\n}\n";

	var depth_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n}\n";

	var distanceRGBA_frag = "uniform vec3 lightPos;\nvarying vec4 vWorldPosition;\n#include <common>\n#include <packing>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tgl_FragColor = packDepthToRGBA( length( vWorldPosition.xyz - lightPos.xyz ) / 1000.0 );\n}\n";

	var distanceRGBA_vert = "varying vec4 vWorldPosition;\n#include <common>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <skinbase_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition;\n}\n";

	var equirect_frag = "uniform sampler2D tEquirect;\nuniform float tFlip;\nvarying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldPosition );\n\tvec2 sampleUV;\n\tsampleUV.y = saturate( tFlip * direction.y * -0.5 + 0.5 );\n\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n}\n";

	var equirect_vert = "varying vec3 vWorldPosition;\n#include <common>\nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}\n";

	var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";

	var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\tvLineDistance = scale * lineDistance;\n\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}\n";

	var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\treflectedLight.indirectDiffuse += texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <normal_flip>\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";

	var meshbasic_vert = "#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <normal_flip>\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";

	var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_flip>\n\t#include <normal_fragment>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_template>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";

	var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <lights_pars>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_flip>\n\t#include <normal_fragment>\n\t#include <emissivemap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_template>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}\n";

	var meshphysical_vert = "#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var normal_frag = "#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\nvoid main() {\n\t#include <logdepthbuf_fragment>\n\t#include <normal_flip>\n\t#include <normal_fragment>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}\n";

	var normal_vert = "#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}\n";

	var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <premultiplied_alpha_fragment>\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}\n";

	var points_vert = "uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#ifdef USE_SIZEATTENUATION\n\t\tgl_PointSize = size * ( scale / - mvPosition.z );\n\t#else\n\t\tgl_PointSize = size;\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}\n";

	var shadow_frag = "uniform float opacity;\n#include <common>\n#include <packing>\n#include <bsdfs>\n#include <lights_pars>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( 0.0, 0.0, 0.0, opacity * ( 1.0 - getShadowMask() ) );\n}\n";

	var shadow_vert = "#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n}\n";

	var ShaderChunk = {
		alphamap_fragment: alphamap_fragment,
		alphamap_pars_fragment: alphamap_pars_fragment,
		alphatest_fragment: alphatest_fragment,
		aomap_fragment: aomap_fragment,
		aomap_pars_fragment: aomap_pars_fragment,
		begin_vertex: begin_vertex,
		beginnormal_vertex: beginnormal_vertex,
		bsdfs: bsdfs,
		bumpmap_pars_fragment: bumpmap_pars_fragment,
		clipping_planes_fragment: clipping_planes_fragment,
		clipping_planes_pars_fragment: clipping_planes_pars_fragment,
		clipping_planes_pars_vertex: clipping_planes_pars_vertex,
		clipping_planes_vertex: clipping_planes_vertex,
		color_fragment: color_fragment,
		color_pars_fragment: color_pars_fragment,
		color_pars_vertex: color_pars_vertex,
		color_vertex: color_vertex,
		common: common,
		cube_uv_reflection_fragment: cube_uv_reflection_fragment,
		defaultnormal_vertex: defaultnormal_vertex,
		displacementmap_pars_vertex: displacementmap_pars_vertex,
		displacementmap_vertex: displacementmap_vertex,
		emissivemap_fragment: emissivemap_fragment,
		emissivemap_pars_fragment: emissivemap_pars_fragment,
		encodings_fragment: encodings_fragment,
		encodings_pars_fragment: encodings_pars_fragment,
		envmap_fragment: envmap_fragment,
		envmap_pars_fragment: envmap_pars_fragment,
		envmap_pars_vertex: envmap_pars_vertex,
		envmap_vertex: envmap_vertex,
		fog_vertex: fog_vertex,
		fog_pars_vertex: fog_pars_vertex,
		fog_fragment: fog_fragment,
		fog_pars_fragment: fog_pars_fragment,
		gradientmap_pars_fragment: gradientmap_pars_fragment,
		lightmap_fragment: lightmap_fragment,
		lightmap_pars_fragment: lightmap_pars_fragment,
		lights_lambert_vertex: lights_lambert_vertex,
		lights_pars: lights_pars,
		lights_phong_fragment: lights_phong_fragment,
		lights_phong_pars_fragment: lights_phong_pars_fragment,
		lights_physical_fragment: lights_physical_fragment,
		lights_physical_pars_fragment: lights_physical_pars_fragment,
		lights_template: lights_template,
		logdepthbuf_fragment: logdepthbuf_fragment,
		logdepthbuf_pars_fragment: logdepthbuf_pars_fragment,
		logdepthbuf_pars_vertex: logdepthbuf_pars_vertex,
		logdepthbuf_vertex: logdepthbuf_vertex,
		map_fragment: map_fragment,
		map_pars_fragment: map_pars_fragment,
		map_particle_fragment: map_particle_fragment,
		map_particle_pars_fragment: map_particle_pars_fragment,
		metalnessmap_fragment: metalnessmap_fragment,
		metalnessmap_pars_fragment: metalnessmap_pars_fragment,
		morphnormal_vertex: morphnormal_vertex,
		morphtarget_pars_vertex: morphtarget_pars_vertex,
		morphtarget_vertex: morphtarget_vertex,
		normal_flip: normal_flip,
		normal_fragment: normal_fragment,
		normalmap_pars_fragment: normalmap_pars_fragment,
		packing: packing,
		premultiplied_alpha_fragment: premultiplied_alpha_fragment,
		project_vertex: project_vertex,
		dithering_fragment: dithering_fragment,
		dithering_pars_fragment: dithering_pars_fragment,
		roughnessmap_fragment: roughnessmap_fragment,
		roughnessmap_pars_fragment: roughnessmap_pars_fragment,
		shadowmap_pars_fragment: shadowmap_pars_fragment,
		shadowmap_pars_vertex: shadowmap_pars_vertex,
		shadowmap_vertex: shadowmap_vertex,
		shadowmask_pars_fragment: shadowmask_pars_fragment,
		skinbase_vertex: skinbase_vertex,
		skinning_pars_vertex: skinning_pars_vertex,
		skinning_vertex: skinning_vertex,
		skinnormal_vertex: skinnormal_vertex,
		specularmap_fragment: specularmap_fragment,
		specularmap_pars_fragment: specularmap_pars_fragment,
		tonemapping_fragment: tonemapping_fragment,
		tonemapping_pars_fragment: tonemapping_pars_fragment,
		uv_pars_fragment: uv_pars_fragment,
		uv_pars_vertex: uv_pars_vertex,
		uv_vertex: uv_vertex,
		uv2_pars_fragment: uv2_pars_fragment,
		uv2_pars_vertex: uv2_pars_vertex,
		uv2_vertex: uv2_vertex,
		worldpos_vertex: worldpos_vertex,

		cube_frag: cube_frag,
		cube_vert: cube_vert,
		depth_frag: depth_frag,
		depth_vert: depth_vert,
		distanceRGBA_frag: distanceRGBA_frag,
		distanceRGBA_vert: distanceRGBA_vert,
		equirect_frag: equirect_frag,
		equirect_vert: equirect_vert,
		linedashed_frag: linedashed_frag,
		linedashed_vert: linedashed_vert,
		meshbasic_frag: meshbasic_frag,
		meshbasic_vert: meshbasic_vert,
		meshlambert_frag: meshlambert_frag,
		meshlambert_vert: meshlambert_vert,
		meshphong_frag: meshphong_frag,
		meshphong_vert: meshphong_vert,
		meshphysical_frag: meshphysical_frag,
		meshphysical_vert: meshphysical_vert,
		normal_frag: normal_frag,
		normal_vert: normal_vert,
		points_frag: points_frag,
		points_vert: points_vert,
		shadow_frag: shadow_frag,
		shadow_vert: shadow_vert
	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 * @author mikael emtinger / http://gomo.se/
	 */

	var ShaderLib = {

		basic: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.aomap,
				UniformsLib.lightmap,
				UniformsLib.fog
			] ),

			vertexShader: ShaderChunk.meshbasic_vert,
			fragmentShader: ShaderChunk.meshbasic_frag

		},

		lambert: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.aomap,
				UniformsLib.lightmap,
				UniformsLib.emissivemap,
				UniformsLib.fog,
				UniformsLib.lights,
				{
					emissive: { value: new Color( 0x000000 ) }
				}
			] ),

			vertexShader: ShaderChunk.meshlambert_vert,
			fragmentShader: ShaderChunk.meshlambert_frag

		},

		phong: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.aomap,
				UniformsLib.lightmap,
				UniformsLib.emissivemap,
				UniformsLib.bumpmap,
				UniformsLib.normalmap,
				UniformsLib.displacementmap,
				UniformsLib.gradientmap,
				UniformsLib.fog,
				UniformsLib.lights,
				{
					emissive: { value: new Color( 0x000000 ) },
					specular: { value: new Color( 0x111111 ) },
					shininess: { value: 30 }
				}
			] ),

			vertexShader: ShaderChunk.meshphong_vert,
			fragmentShader: ShaderChunk.meshphong_frag

		},

		standard: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.aomap,
				UniformsLib.lightmap,
				UniformsLib.emissivemap,
				UniformsLib.bumpmap,
				UniformsLib.normalmap,
				UniformsLib.displacementmap,
				UniformsLib.roughnessmap,
				UniformsLib.metalnessmap,
				UniformsLib.fog,
				UniformsLib.lights,
				{
					emissive: { value: new Color( 0x000000 ) },
					roughness: { value: 0.5 },
					metalness: { value: 0.5 },
					envMapIntensity: { value: 1 } // temporary
				}
			] ),

			vertexShader: ShaderChunk.meshphysical_vert,
			fragmentShader: ShaderChunk.meshphysical_frag

		},

		points: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.points,
				UniformsLib.fog
			] ),

			vertexShader: ShaderChunk.points_vert,
			fragmentShader: ShaderChunk.points_frag

		},

		dashed: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.fog,
				{
					scale: { value: 1 },
					dashSize: { value: 1 },
					totalSize: { value: 2 }
				}
			] ),

			vertexShader: ShaderChunk.linedashed_vert,
			fragmentShader: ShaderChunk.linedashed_frag

		},

		depth: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.displacementmap
			] ),

			vertexShader: ShaderChunk.depth_vert,
			fragmentShader: ShaderChunk.depth_frag

		},

		normal: {

			uniforms: UniformsUtils.merge( [
				UniformsLib.common,
				UniformsLib.bumpmap,
				UniformsLib.normalmap,
				UniformsLib.displacementmap,
				{
					opacity: { value: 1.0 }
				}
			] ),

			vertexShader: ShaderChunk.normal_vert,
			fragmentShader: ShaderChunk.normal_frag

		},

		/* -------------------------------------------------------------------------
		//	Cube map shader
		 ------------------------------------------------------------------------- */

		cube: {

			uniforms: {
				tCube: { value: null },
				tFlip: { value: - 1 },
				opacity: { value: 1.0 }
			},

			vertexShader: ShaderChunk.cube_vert,
			fragmentShader: ShaderChunk.cube_frag

		},

		/* -------------------------------------------------------------------------
		//	Cube map shader
		 ------------------------------------------------------------------------- */

		equirect: {

			uniforms: {
				tEquirect: { value: null },
				tFlip: { value: - 1 }
			},

			vertexShader: ShaderChunk.equirect_vert,
			fragmentShader: ShaderChunk.equirect_frag

		},

		distanceRGBA: {

			uniforms: {
				lightPos: { value: new Vector3() }
			},

			vertexShader: ShaderChunk.distanceRGBA_vert,
			fragmentShader: ShaderChunk.distanceRGBA_frag

		}

	};

	ShaderLib.physical = {

		uniforms: UniformsUtils.merge( [
			ShaderLib.standard.uniforms,
			{
				clearCoat: { value: 0 },
				clearCoatRoughness: { value: 0 }
			}
		] ),

		vertexShader: ShaderChunk.meshphysical_vert,
		fragmentShader: ShaderChunk.meshphysical_frag

	};

	/**
	 * @author bhouston / http://clara.io
	 */

	function Box2( min, max ) {

		this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );
		this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );

	}

	Object.assign( Box2.prototype, {

		set: function ( min, max ) {

			this.min.copy( min );
			this.max.copy( max );

			return this;

		},

		setFromPoints: function ( points ) {

			this.makeEmpty();

			for ( var i = 0, il = points.length; i < il; i ++ ) {

				this.expandByPoint( points[ i ] );

			}

			return this;

		},

		setFromCenterAndSize: function () {

			var v1 = new Vector2();

			return function setFromCenterAndSize( center, size ) {

				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );
				this.min.copy( center ).sub( halfSize );
				this.max.copy( center ).add( halfSize );

				return this;

			};

		}(),

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( box ) {

			this.min.copy( box.min );
			this.max.copy( box.max );

			return this;

		},

		makeEmpty: function () {

			this.min.x = this.min.y = + Infinity;
			this.max.x = this.max.y = - Infinity;

			return this;

		},

		isEmpty: function () {

			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );

		},

		getCenter: function ( optionalTarget ) {

			var result = optionalTarget || new Vector2();
			return this.isEmpty() ? result.set( 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

		},

		getSize: function ( optionalTarget ) {

			var result = optionalTarget || new Vector2();
			return this.isEmpty() ? result.set( 0, 0 ) : result.subVectors( this.max, this.min );

		},

		expandByPoint: function ( point ) {

			this.min.min( point );
			this.max.max( point );

			return this;

		},

		expandByVector: function ( vector ) {

			this.min.sub( vector );
			this.max.add( vector );

			return this;

		},

		expandByScalar: function ( scalar ) {

			this.min.addScalar( - scalar );
			this.max.addScalar( scalar );

			return this;

		},

		containsPoint: function ( point ) {

			return point.x < this.min.x || point.x > this.max.x ||
				point.y < this.min.y || point.y > this.max.y ? false : true;

		},

		containsBox: function ( box ) {

			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
				this.min.y <= box.min.y && box.max.y <= this.max.y;

		},

		getParameter: function ( point, optionalTarget ) {

			// This can potentially have a divide by zero if the box
			// has a size dimension of 0.

			var result = optionalTarget || new Vector2();

			return result.set(
				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
				( point.y - this.min.y ) / ( this.max.y - this.min.y )
			);

		},

		intersectsBox: function ( box ) {

			// using 4 splitting planes to rule out intersections

			return box.max.x < this.min.x || box.min.x > this.max.x ||
				box.max.y < this.min.y || box.min.y > this.max.y ? false : true;

		},

		clampPoint: function ( point, optionalTarget ) {

			var result = optionalTarget || new Vector2();
			return result.copy( point ).clamp( this.min, this.max );

		},

		distanceToPoint: function () {

			var v1 = new Vector2();

			return function distanceToPoint( point ) {

				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
				return clampedPoint.sub( point ).length();

			};

		}(),

		intersect: function ( box ) {

			this.min.max( box.min );
			this.max.min( box.max );

			return this;

		},

		union: function ( box ) {

			this.min.min( box.min );
			this.max.max( box.max );

			return this;

		},

		translate: function ( offset ) {

			this.min.add( offset );
			this.max.add( offset );

			return this;

		},

		equals: function ( box ) {

			return box.min.equals( this.min ) && box.max.equals( this.max );

		}

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function LensFlarePlugin( renderer, flares ) {

		var gl = renderer.context;
		var state = renderer.state;

		var vertexBuffer, elementBuffer;
		var shader, program, attributes, uniforms;

		var tempTexture, occlusionTexture;

		function init() {

			var vertices = new Float32Array( [
				- 1, - 1,  0, 0,
				 1, - 1,  1, 0,
				 1,  1,  1, 1,
				- 1,  1,  0, 1
			] );

			var faces = new Uint16Array( [
				0, 1, 2,
				0, 2, 3
			] );

			// buffers

			vertexBuffer     = gl.createBuffer();
			elementBuffer    = gl.createBuffer();

			gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
			gl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW );

			gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
			gl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW );

			// textures

			tempTexture      = gl.createTexture();
			occlusionTexture = gl.createTexture();

			state.bindTexture( gl.TEXTURE_2D, tempTexture );
			gl.texImage2D( gl.TEXTURE_2D, 0, gl.RGB, 16, 16, 0, gl.RGB, gl.UNSIGNED_BYTE, null );
			gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE );
			gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE );
			gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST );
			gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST );

			state.bindTexture( gl.TEXTURE_2D, occlusionTexture );
			gl.texImage2D( gl.TEXTURE_2D, 0, gl.RGBA, 16, 16, 0, gl.RGBA, gl.UNSIGNED_BYTE, null );
			gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE );
			gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE );
			gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST );
			gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST );

			shader = {

				vertexShader: [

					"uniform lowp int renderType;",

					"uniform vec3 screenPosition;",
					"uniform vec2 scale;",
					"uniform float rotation;",

					"uniform sampler2D occlusionMap;",

					"attribute vec2 position;",
					"attribute vec2 uv;",

					"varying vec2 vUV;",
					"varying float vVisibility;",

					"void main() {",

						"vUV = uv;",

						"vec2 pos = position;",

						"if ( renderType == 2 ) {",

							"vec4 visibility = texture2D( occlusionMap, vec2( 0.1, 0.1 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.5, 0.1 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.9, 0.1 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.9, 0.5 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.9, 0.9 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.5, 0.9 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.1, 0.9 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.1, 0.5 ) );",
							"visibility += texture2D( occlusionMap, vec2( 0.5, 0.5 ) );",

							"vVisibility =        visibility.r / 9.0;",
							"vVisibility *= 1.0 - visibility.g / 9.0;",
							"vVisibility *=       visibility.b / 9.0;",
							"vVisibility *= 1.0 - visibility.a / 9.0;",

							"pos.x = cos( rotation ) * position.x - sin( rotation ) * position.y;",
							"pos.y = sin( rotation ) * position.x + cos( rotation ) * position.y;",

						"}",

						"gl_Position = vec4( ( pos * scale + screenPosition.xy ).xy, screenPosition.z, 1.0 );",

					"}"

				].join( "\n" ),

				fragmentShader: [

					"uniform lowp int renderType;",

					"uniform sampler2D map;",
					"uniform float opacity;",
					"uniform vec3 color;",

					"varying vec2 vUV;",
					"varying float vVisibility;",

					"void main() {",

						// pink square

						"if ( renderType == 0 ) {",

							"gl_FragColor = vec4( 1.0, 0.0, 1.0, 0.0 );",

						// restore

						"} else if ( renderType == 1 ) {",

							"gl_FragColor = texture2D( map, vUV );",

						// flare

						"} else {",

							"vec4 texture = texture2D( map, vUV );",
							"texture.a *= opacity * vVisibility;",
							"gl_FragColor = texture;",
							"gl_FragColor.rgb *= color;",

						"}",

					"}"

				].join( "\n" )

			};

			program = createProgram( shader );

			attributes = {
				vertex: gl.getAttribLocation ( program, "position" ),
				uv:     gl.getAttribLocation ( program, "uv" )
			};

			uniforms = {
				renderType:     gl.getUniformLocation( program, "renderType" ),
				map:            gl.getUniformLocation( program, "map" ),
				occlusionMap:   gl.getUniformLocation( program, "occlusionMap" ),
				opacity:        gl.getUniformLocation( program, "opacity" ),
				color:          gl.getUniformLocation( program, "color" ),
				scale:          gl.getUniformLocation( program, "scale" ),
				rotation:       gl.getUniformLocation( program, "rotation" ),
				screenPosition: gl.getUniformLocation( program, "screenPosition" )
			};

		}

		/*
		 * Render lens flares
		 * Method: renders 16x16 0xff00ff-colored points scattered over the light source area,
		 *         reads these back and calculates occlusion.
		 */

		this.render = function ( scene, camera, viewport ) {

			if ( flares.length === 0 ) return;

			var tempPosition = new Vector3();

			var invAspect = viewport.w / viewport.z,
				halfViewportWidth = viewport.z * 0.5,
				halfViewportHeight = viewport.w * 0.5;

			var size = 16 / viewport.w,
				scale = new Vector2( size * invAspect, size );

			var screenPosition = new Vector3( 1, 1, 0 ),
				screenPositionPixels = new Vector2( 1, 1 );

			var validArea = new Box2();

			validArea.min.set( viewport.x, viewport.y );
			validArea.max.set( viewport.x + ( viewport.z - 16 ), viewport.y + ( viewport.w - 16 ) );

			if ( program === undefined ) {

				init();

			}

			gl.useProgram( program );

			state.initAttributes();
			state.enableAttribute( attributes.vertex );
			state.enableAttribute( attributes.uv );
			state.disableUnusedAttributes();

			// loop through all lens flares to update their occlusion and positions
			// setup gl and common used attribs/uniforms

			gl.uniform1i( uniforms.occlusionMap, 0 );
			gl.uniform1i( uniforms.map, 1 );

			gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
			gl.vertexAttribPointer( attributes.vertex, 2, gl.FLOAT, false, 2 * 8, 0 );
			gl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 );

			gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );

			state.disable( gl.CULL_FACE );
			state.buffers.depth.setMask( false );

			for ( var i = 0, l = flares.length; i < l; i ++ ) {

				size = 16 / viewport.w;
				scale.set( size * invAspect, size );

				// calc object screen position

				var flare = flares[ i ];

				tempPosition.set( flare.matrixWorld.elements[ 12 ], flare.matrixWorld.elements[ 13 ], flare.matrixWorld.elements[ 14 ] );

				tempPosition.applyMatrix4( camera.matrixWorldInverse );
				tempPosition.applyMatrix4( camera.projectionMatrix );

				// setup arrays for gl programs

				screenPosition.copy( tempPosition );

				// horizontal and vertical coordinate of the lower left corner of the pixels to copy

				screenPositionPixels.x = viewport.x + ( screenPosition.x * halfViewportWidth ) + halfViewportWidth - 8;
				screenPositionPixels.y = viewport.y + ( screenPosition.y * halfViewportHeight ) + halfViewportHeight - 8;

				// screen cull

				if ( validArea.containsPoint( screenPositionPixels ) === true ) {

					// save current RGB to temp texture

					state.activeTexture( gl.TEXTURE0 );
					state.bindTexture( gl.TEXTURE_2D, null );
					state.activeTexture( gl.TEXTURE1 );
					state.bindTexture( gl.TEXTURE_2D, tempTexture );
					gl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGB, screenPositionPixels.x, screenPositionPixels.y, 16, 16, 0 );


					// render pink quad

					gl.uniform1i( uniforms.renderType, 0 );
					gl.uniform2f( uniforms.scale, scale.x, scale.y );
					gl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z );

					state.disable( gl.BLEND );
					state.enable( gl.DEPTH_TEST );

					gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );


					// copy result to occlusionMap

					state.activeTexture( gl.TEXTURE0 );
					state.bindTexture( gl.TEXTURE_2D, occlusionTexture );
					gl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGBA, screenPositionPixels.x, screenPositionPixels.y, 16, 16, 0 );


					// restore graphics

					gl.uniform1i( uniforms.renderType, 1 );
					state.disable( gl.DEPTH_TEST );

					state.activeTexture( gl.TEXTURE1 );
					state.bindTexture( gl.TEXTURE_2D, tempTexture );
					gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );


					// update object positions

					flare.positionScreen.copy( screenPosition );

					if ( flare.customUpdateCallback ) {

						flare.customUpdateCallback( flare );

					} else {

						flare.updateLensFlares();

					}

					// render flares

					gl.uniform1i( uniforms.renderType, 2 );
					state.enable( gl.BLEND );

					for ( var j = 0, jl = flare.lensFlares.length; j < jl; j ++ ) {

						var sprite = flare.lensFlares[ j ];

						if ( sprite.opacity > 0.001 && sprite.scale > 0.001 ) {

							screenPosition.x = sprite.x;
							screenPosition.y = sprite.y;
							screenPosition.z = sprite.z;

							size = sprite.size * sprite.scale / viewport.w;

							scale.x = size * invAspect;
							scale.y = size;

							gl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z );
							gl.uniform2f( uniforms.scale, scale.x, scale.y );
							gl.uniform1f( uniforms.rotation, sprite.rotation );

							gl.uniform1f( uniforms.opacity, sprite.opacity );
							gl.uniform3f( uniforms.color, sprite.color.r, sprite.color.g, sprite.color.b );

							state.setBlending( sprite.blending, sprite.blendEquation, sprite.blendSrc, sprite.blendDst );
							renderer.setTexture2D( sprite.texture, 1 );

							gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );

						}

					}

				}

			}

			// restore gl

			state.enable( gl.CULL_FACE );
			state.enable( gl.DEPTH_TEST );
			state.buffers.depth.setMask( true );

			renderer.resetGLState();

		};

		function createProgram( shader ) {

			var program = gl.createProgram();

			var fragmentShader = gl.createShader( gl.FRAGMENT_SHADER );
			var vertexShader = gl.createShader( gl.VERTEX_SHADER );

			var prefix = "precision " + renderer.getPrecision() + " float;\n";

			gl.shaderSource( fragmentShader, prefix + shader.fragmentShader );
			gl.shaderSource( vertexShader, prefix + shader.vertexShader );

			gl.compileShader( fragmentShader );
			gl.compileShader( vertexShader );

			gl.attachShader( program, fragmentShader );
			gl.attachShader( program, vertexShader );

			gl.linkProgram( program );

			return program;

		}

	}

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function SpritePlugin( renderer, sprites ) {

		var gl = renderer.context;
		var state = renderer.state;

		var vertexBuffer, elementBuffer;
		var program, attributes, uniforms;

		var texture;

		// decompose matrixWorld

		var spritePosition = new Vector3();
		var spriteRotation = new Quaternion();
		var spriteScale = new Vector3();

		function init() {

			var vertices = new Float32Array( [
				- 0.5, - 0.5,  0, 0,
				  0.5, - 0.5,  1, 0,
				  0.5,   0.5,  1, 1,
				- 0.5,   0.5,  0, 1
			] );

			var faces = new Uint16Array( [
				0, 1, 2,
				0, 2, 3
			] );

			vertexBuffer  = gl.createBuffer();
			elementBuffer = gl.createBuffer();

			gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
			gl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW );

			gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );
			gl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW );

			program = createProgram();

			attributes = {
				position:			gl.getAttribLocation ( program, 'position' ),
				uv:					gl.getAttribLocation ( program, 'uv' )
			};

			uniforms = {
				uvOffset:			gl.getUniformLocation( program, 'uvOffset' ),
				uvScale:			gl.getUniformLocation( program, 'uvScale' ),

				rotation:			gl.getUniformLocation( program, 'rotation' ),
				scale:				gl.getUniformLocation( program, 'scale' ),

				color:				gl.getUniformLocation( program, 'color' ),
				map:				gl.getUniformLocation( program, 'map' ),
				opacity:			gl.getUniformLocation( program, 'opacity' ),

				modelViewMatrix: 	gl.getUniformLocation( program, 'modelViewMatrix' ),
				projectionMatrix:	gl.getUniformLocation( program, 'projectionMatrix' ),

				fogType:			gl.getUniformLocation( program, 'fogType' ),
				fogDensity:			gl.getUniformLocation( program, 'fogDensity' ),
				fogNear:			gl.getUniformLocation( program, 'fogNear' ),
				fogFar:				gl.getUniformLocation( program, 'fogFar' ),
				fogColor:			gl.getUniformLocation( program, 'fogColor' ),

				alphaTest:			gl.getUniformLocation( program, 'alphaTest' )
			};

			var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
			canvas.width = 8;
			canvas.height = 8;

			var context = canvas.getContext( '2d' );
			context.fillStyle = 'white';
			context.fillRect( 0, 0, 8, 8 );

			texture = new Texture( canvas );
			texture.needsUpdate = true;

		}

		this.render = function ( scene, camera ) {

			if ( sprites.length === 0 ) return;

			// setup gl

			if ( program === undefined ) {

				init();

			}

			gl.useProgram( program );

			state.initAttributes();
			state.enableAttribute( attributes.position );
			state.enableAttribute( attributes.uv );
			state.disableUnusedAttributes();

			state.disable( gl.CULL_FACE );
			state.enable( gl.BLEND );

			gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );
			gl.vertexAttribPointer( attributes.position, 2, gl.FLOAT, false, 2 * 8, 0 );
			gl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 );

			gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );

			gl.uniformMatrix4fv( uniforms.projectionMatrix, false, camera.projectionMatrix.elements );

			state.activeTexture( gl.TEXTURE0 );
			gl.uniform1i( uniforms.map, 0 );

			var oldFogType = 0;
			var sceneFogType = 0;
			var fog = scene.fog;

			if ( fog ) {

				gl.uniform3f( uniforms.fogColor, fog.color.r, fog.color.g, fog.color.b );

				if ( fog.isFog ) {

					gl.uniform1f( uniforms.fogNear, fog.near );
					gl.uniform1f( uniforms.fogFar, fog.far );

					gl.uniform1i( uniforms.fogType, 1 );
					oldFogType = 1;
					sceneFogType = 1;

				} else if ( fog.isFogExp2 ) {

					gl.uniform1f( uniforms.fogDensity, fog.density );

					gl.uniform1i( uniforms.fogType, 2 );
					oldFogType = 2;
					sceneFogType = 2;

				}

			} else {

				gl.uniform1i( uniforms.fogType, 0 );
				oldFogType = 0;
				sceneFogType = 0;

			}


			// update positions and sort

			for ( var i = 0, l = sprites.length; i < l; i ++ ) {

				var sprite = sprites[ i ];

				sprite.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, sprite.matrixWorld );
				sprite.z = - sprite.modelViewMatrix.elements[ 14 ];

			}

			sprites.sort( painterSortStable );

			// render all sprites

			var scale = [];

			for ( var i = 0, l = sprites.length; i < l; i ++ ) {

				var sprite = sprites[ i ];
				var material = sprite.material;

				if ( material.visible === false ) continue;

				sprite.onBeforeRender( renderer, scene, camera, undefined, material, undefined );

				gl.uniform1f( uniforms.alphaTest, material.alphaTest );
				gl.uniformMatrix4fv( uniforms.modelViewMatrix, false, sprite.modelViewMatrix.elements );

				sprite.matrixWorld.decompose( spritePosition, spriteRotation, spriteScale );

				scale[ 0 ] = spriteScale.x;
				scale[ 1 ] = spriteScale.y;

				var fogType = 0;

				if ( scene.fog && material.fog ) {

					fogType = sceneFogType;

				}

				if ( oldFogType !== fogType ) {

					gl.uniform1i( uniforms.fogType, fogType );
					oldFogType = fogType;

				}

				if ( material.map !== null ) {

					gl.uniform2f( uniforms.uvOffset, material.map.offset.x, material.map.offset.y );
					gl.uniform2f( uniforms.uvScale, material.map.repeat.x, material.map.repeat.y );

				} else {

					gl.uniform2f( uniforms.uvOffset, 0, 0 );
					gl.uniform2f( uniforms.uvScale, 1, 1 );

				}

				gl.uniform1f( uniforms.opacity, material.opacity );
				gl.uniform3f( uniforms.color, material.color.r, material.color.g, material.color.b );

				gl.uniform1f( uniforms.rotation, material.rotation );
				gl.uniform2fv( uniforms.scale, scale );

				state.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha );
				state.buffers.depth.setTest( material.depthTest );
				state.buffers.depth.setMask( material.depthWrite );

				if ( material.map ) {

					renderer.setTexture2D( material.map, 0 );

				} else {

					renderer.setTexture2D( texture, 0 );

				}

				gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );

				sprite.onAfterRender( renderer, scene, camera, undefined, material, undefined );

			}

			// restore gl

			state.enable( gl.CULL_FACE );

			renderer.resetGLState();

		};

		function createProgram() {

			var program = gl.createProgram();

			var vertexShader = gl.createShader( gl.VERTEX_SHADER );
			var fragmentShader = gl.createShader( gl.FRAGMENT_SHADER );

			gl.shaderSource( vertexShader, [

				'precision ' + renderer.getPrecision() + ' float;',

				'#define SHADER_NAME ' + 'SpriteMaterial',

				'uniform mat4 modelViewMatrix;',
				'uniform mat4 projectionMatrix;',
				'uniform float rotation;',
				'uniform vec2 scale;',
				'uniform vec2 uvOffset;',
				'uniform vec2 uvScale;',

				'attribute vec2 position;',
				'attribute vec2 uv;',

				'varying vec2 vUV;',

				'void main() {',

					'vUV = uvOffset + uv * uvScale;',

					'vec2 alignedPosition = position * scale;',

					'vec2 rotatedPosition;',
					'rotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;',
					'rotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;',

					'vec4 finalPosition;',

					'finalPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );',
					'finalPosition.xy += rotatedPosition;',
					'finalPosition = projectionMatrix * finalPosition;',

					'gl_Position = finalPosition;',

				'}'

			].join( '\n' ) );

			gl.shaderSource( fragmentShader, [

				'precision ' + renderer.getPrecision() + ' float;',

				'#define SHADER_NAME ' + 'SpriteMaterial',

				'uniform vec3 color;',
				'uniform sampler2D map;',
				'uniform float opacity;',

				'uniform int fogType;',
				'uniform vec3 fogColor;',
				'uniform float fogDensity;',
				'uniform float fogNear;',
				'uniform float fogFar;',
				'uniform float alphaTest;',

				'varying vec2 vUV;',

				'void main() {',

					'vec4 texture = texture2D( map, vUV );',

					'if ( texture.a < alphaTest ) discard;',

					'gl_FragColor = vec4( color * texture.xyz, texture.a * opacity );',

					'if ( fogType > 0 ) {',

						'float depth = gl_FragCoord.z / gl_FragCoord.w;',
						'float fogFactor = 0.0;',

						'if ( fogType == 1 ) {',

							'fogFactor = smoothstep( fogNear, fogFar, depth );',

						'} else {',

							'const float LOG2 = 1.442695;',
							'fogFactor = exp2( - fogDensity * fogDensity * depth * depth * LOG2 );',
							'fogFactor = 1.0 - clamp( fogFactor, 0.0, 1.0 );',

						'}',

						'gl_FragColor = mix( gl_FragColor, vec4( fogColor, gl_FragColor.w ), fogFactor );',

					'}',

				'}'

			].join( '\n' ) );

			gl.compileShader( vertexShader );
			gl.compileShader( fragmentShader );

			gl.attachShader( program, vertexShader );
			gl.attachShader( program, fragmentShader );

			gl.linkProgram( program );

			return program;

		}

		function painterSortStable( a, b ) {

			if ( a.renderOrder !== b.renderOrder ) {

				return a.renderOrder - b.renderOrder;

			} else if ( a.z !== b.z ) {

				return b.z - a.z;

			} else {

				return b.id - a.id;

			}

		}

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	var materialId = 0;

	function Material() {

		Object.defineProperty( this, 'id', { value: materialId ++ } );

		this.uuid = _Math.generateUUID();

		this.name = '';
		this.type = 'Material';

		this.fog = true;
		this.lights = true;

		this.blending = NormalBlending;
		this.side = FrontSide;
		this.shading = SmoothShading; // THREE.FlatShading, THREE.SmoothShading
		this.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors

		this.opacity = 1;
		this.transparent = false;

		this.blendSrc = SrcAlphaFactor;
		this.blendDst = OneMinusSrcAlphaFactor;
		this.blendEquation = AddEquation;
		this.blendSrcAlpha = null;
		this.blendDstAlpha = null;
		this.blendEquationAlpha = null;

		this.depthFunc = LessEqualDepth;
		this.depthTest = true;
		this.depthWrite = true;

		this.clippingPlanes = null;
		this.clipIntersection = false;
		this.clipShadows = false;

		this.colorWrite = true;

		this.precision = null; // override the renderer's default precision for this material

		this.polygonOffset = false;
		this.polygonOffsetFactor = 0;
		this.polygonOffsetUnits = 0;

		this.dithering = false;

		this.alphaTest = 0;
		this.premultipliedAlpha = false;

		this.overdraw = 0; // Overdrawn pixels (typically between 0 and 1) for fixing antialiasing gaps in CanvasRenderer

		this.visible = true;

		this.needsUpdate = true;

	}

	Object.assign( Material.prototype, EventDispatcher.prototype, {

		isMaterial: true,

		onBeforeCompile: function () {},

		setValues: function ( values ) {

			if ( values === undefined ) return;

			for ( var key in values ) {

				var newValue = values[ key ];

				if ( newValue === undefined ) {

					console.warn( "THREE.Material: '" + key + "' parameter is undefined." );
					continue;

				}

				var currentValue = this[ key ];

				if ( currentValue === undefined ) {

					console.warn( "THREE." + this.type + ": '" + key + "' is not a property of this material." );
					continue;

				}

				if ( currentValue && currentValue.isColor ) {

					currentValue.set( newValue );

				} else if ( ( currentValue && currentValue.isVector3 ) && ( newValue && newValue.isVector3 ) ) {

					currentValue.copy( newValue );

				} else if ( key === 'overdraw' ) {

					// ensure overdraw is backwards-compatible with legacy boolean type
					this[ key ] = Number( newValue );

				} else {

					this[ key ] = newValue;

				}

			}

		},

		toJSON: function ( meta ) {

			var isRoot = meta === undefined;

			if ( isRoot ) {

				meta = {
					textures: {},
					images: {}
				};

			}

			var data = {
				metadata: {
					version: 4.5,
					type: 'Material',
					generator: 'Material.toJSON'
				}
			};

			// standard Material serialization
			data.uuid = this.uuid;
			data.type = this.type;

			if ( this.name !== '' ) data.name = this.name;

			if ( this.color && this.color.isColor ) data.color = this.color.getHex();

			if ( this.roughness !== undefined ) data.roughness = this.roughness;
			if ( this.metalness !== undefined ) data.metalness = this.metalness;

			if ( this.emissive && this.emissive.isColor ) data.emissive = this.emissive.getHex();
			if ( this.specular && this.specular.isColor ) data.specular = this.specular.getHex();
			if ( this.shininess !== undefined ) data.shininess = this.shininess;
			if ( this.clearCoat !== undefined ) data.clearCoat = this.clearCoat;
			if ( this.clearCoatRoughness !== undefined ) data.clearCoatRoughness = this.clearCoatRoughness;

			if ( this.map && this.map.isTexture ) data.map = this.map.toJSON( meta ).uuid;
			if ( this.alphaMap && this.alphaMap.isTexture ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;
			if ( this.lightMap && this.lightMap.isTexture ) data.lightMap = this.lightMap.toJSON( meta ).uuid;
			if ( this.bumpMap && this.bumpMap.isTexture ) {

				data.bumpMap = this.bumpMap.toJSON( meta ).uuid;
				data.bumpScale = this.bumpScale;

			}
			if ( this.normalMap && this.normalMap.isTexture ) {

				data.normalMap = this.normalMap.toJSON( meta ).uuid;
				data.normalScale = this.normalScale.toArray();

			}
			if ( this.displacementMap && this.displacementMap.isTexture ) {

				data.displacementMap = this.displacementMap.toJSON( meta ).uuid;
				data.displacementScale = this.displacementScale;
				data.displacementBias = this.displacementBias;

			}
			if ( this.roughnessMap && this.roughnessMap.isTexture ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;
			if ( this.metalnessMap && this.metalnessMap.isTexture ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;

			if ( this.emissiveMap && this.emissiveMap.isTexture ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;
			if ( this.specularMap && this.specularMap.isTexture ) data.specularMap = this.specularMap.toJSON( meta ).uuid;

			if ( this.envMap && this.envMap.isTexture ) {

				data.envMap = this.envMap.toJSON( meta ).uuid;
				data.reflectivity = this.reflectivity; // Scale behind envMap

			}

			if ( this.gradientMap && this.gradientMap.isTexture ) {

				data.gradientMap = this.gradientMap.toJSON( meta ).uuid;

			}

			if ( this.size !== undefined ) data.size = this.size;
			if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;

			if ( this.blending !== NormalBlending ) data.blending = this.blending;
			if ( this.shading !== SmoothShading ) data.shading = this.shading;
			if ( this.side !== FrontSide ) data.side = this.side;
			if ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors;

			if ( this.opacity < 1 ) data.opacity = this.opacity;
			if ( this.transparent === true ) data.transparent = this.transparent;

			data.depthFunc = this.depthFunc;
			data.depthTest = this.depthTest;
			data.depthWrite = this.depthWrite;

			if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;
			if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;
			if ( this.wireframe === true ) data.wireframe = this.wireframe;
			if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;
			if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;
			if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;

			data.skinning = this.skinning;
			data.morphTargets = this.morphTargets;

			data.dithering = this.dithering;

			// TODO: Copied from Object3D.toJSON

			function extractFromCache( cache ) {

				var values = [];

				for ( var key in cache ) {

					var data = cache[ key ];
					delete data.metadata;
					values.push( data );

				}

				return values;

			}

			if ( isRoot ) {

				var textures = extractFromCache( meta.textures );
				var images = extractFromCache( meta.images );

				if ( textures.length > 0 ) data.textures = textures;
				if ( images.length > 0 ) data.images = images;

			}

			return data;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( source ) {

			this.name = source.name;

			this.fog = source.fog;
			this.lights = source.lights;

			this.blending = source.blending;
			this.side = source.side;
			this.shading = source.shading;
			this.vertexColors = source.vertexColors;

			this.opacity = source.opacity;
			this.transparent = source.transparent;

			this.blendSrc = source.blendSrc;
			this.blendDst = source.blendDst;
			this.blendEquation = source.blendEquation;
			this.blendSrcAlpha = source.blendSrcAlpha;
			this.blendDstAlpha = source.blendDstAlpha;
			this.blendEquationAlpha = source.blendEquationAlpha;

			this.depthFunc = source.depthFunc;
			this.depthTest = source.depthTest;
			this.depthWrite = source.depthWrite;

			this.colorWrite = source.colorWrite;

			this.precision = source.precision;

			this.polygonOffset = source.polygonOffset;
			this.polygonOffsetFactor = source.polygonOffsetFactor;
			this.polygonOffsetUnits = source.polygonOffsetUnits;

			this.dithering = source.dithering;

			this.alphaTest = source.alphaTest;

			this.premultipliedAlpha = source.premultipliedAlpha;

			this.overdraw = source.overdraw;

			this.visible = source.visible;
			this.clipShadows = source.clipShadows;
			this.clipIntersection = source.clipIntersection;

			var srcPlanes = source.clippingPlanes,
				dstPlanes = null;

			if ( srcPlanes !== null ) {

				var n = srcPlanes.length;
				dstPlanes = new Array( n );

				for ( var i = 0; i !== n; ++ i )
					dstPlanes[ i ] = srcPlanes[ i ].clone();

			}

			this.clippingPlanes = dstPlanes;

			return this;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  defines: { "label" : "value" },
	 *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
	 *
	 *  fragmentShader: <string>,
	 *  vertexShader: <string>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  lights: <bool>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function ShaderMaterial( parameters ) {

		Material.call( this );

		this.type = 'ShaderMaterial';

		this.defines = {};
		this.uniforms = {};

		this.vertexShader = 'void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}';
		this.fragmentShader = 'void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}';

		this.linewidth = 1;

		this.wireframe = false;
		this.wireframeLinewidth = 1;

		this.fog = false; // set to use scene fog
		this.lights = false; // set to use scene lights
		this.clipping = false; // set to use user-defined clipping planes

		this.skinning = false; // set to use skinning attribute streams
		this.morphTargets = false; // set to use morph targets
		this.morphNormals = false; // set to use morph normals

		this.extensions = {
			derivatives: false, // set to use derivatives
			fragDepth: false, // set to use fragment depth values
			drawBuffers: false, // set to use draw buffers
			shaderTextureLOD: false // set to use shader texture LOD
		};

		// When rendered geometry doesn't include these attributes but the material does,
		// use these default values in WebGL. This avoids errors when buffer data is missing.
		this.defaultAttributeValues = {
			'color': [ 1, 1, 1 ],
			'uv': [ 0, 0 ],
			'uv2': [ 0, 0 ]
		};

		this.index0AttributeName = undefined;

		if ( parameters !== undefined ) {

			if ( parameters.attributes !== undefined ) {

				console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );

			}

			this.setValues( parameters );

		}

	}

	ShaderMaterial.prototype = Object.create( Material.prototype );
	ShaderMaterial.prototype.constructor = ShaderMaterial;

	ShaderMaterial.prototype.isShaderMaterial = true;

	ShaderMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.fragmentShader = source.fragmentShader;
		this.vertexShader = source.vertexShader;

		this.uniforms = UniformsUtils.clone( source.uniforms );

		this.defines = source.defines;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;

		this.lights = source.lights;
		this.clipping = source.clipping;

		this.skinning = source.skinning;

		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		this.extensions = source.extensions;

		return this;

	};

	ShaderMaterial.prototype.toJSON = function ( meta ) {

		var data = Material.prototype.toJSON.call( this, meta );

		data.uniforms = this.uniforms;
		data.vertexShader = this.vertexShader;
		data.fragmentShader = this.fragmentShader;

		return data;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author bhouston / https://clara.io
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * parameters = {
	 *
	 *  opacity: <float>,
	 *
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  displacementMap: new THREE.Texture( <Image> ),
	 *  displacementScale: <float>,
	 *  displacementBias: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>
	 * }
	 */

	function MeshDepthMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshDepthMaterial';

		this.depthPacking = BasicDepthPacking;

		this.skinning = false;
		this.morphTargets = false;

		this.map = null;

		this.alphaMap = null;

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.wireframe = false;
		this.wireframeLinewidth = 1;

		this.fog = false;
		this.lights = false;

		this.setValues( parameters );

	}

	MeshDepthMaterial.prototype = Object.create( Material.prototype );
	MeshDepthMaterial.prototype.constructor = MeshDepthMaterial;

	MeshDepthMaterial.prototype.isMeshDepthMaterial = true;

	MeshDepthMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.depthPacking = source.depthPacking;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;

		this.map = source.map;

		this.alphaMap = source.alphaMap;

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;

		return this;

	};

	/**
	 * @author bhouston / http://clara.io
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function Box3( min, max ) {

		this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );
		this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );

	}

	Object.assign( Box3.prototype, {

		isBox3: true,

		set: function ( min, max ) {

			this.min.copy( min );
			this.max.copy( max );

			return this;

		},

		setFromArray: function ( array ) {

			var minX = + Infinity;
			var minY = + Infinity;
			var minZ = + Infinity;

			var maxX = - Infinity;
			var maxY = - Infinity;
			var maxZ = - Infinity;

			for ( var i = 0, l = array.length; i < l; i += 3 ) {

				var x = array[ i ];
				var y = array[ i + 1 ];
				var z = array[ i + 2 ];

				if ( x < minX ) minX = x;
				if ( y < minY ) minY = y;
				if ( z < minZ ) minZ = z;

				if ( x > maxX ) maxX = x;
				if ( y > maxY ) maxY = y;
				if ( z > maxZ ) maxZ = z;

			}

			this.min.set( minX, minY, minZ );
			this.max.set( maxX, maxY, maxZ );

			return this;

		},

		setFromBufferAttribute: function ( attribute ) {

			var minX = + Infinity;
			var minY = + Infinity;
			var minZ = + Infinity;

			var maxX = - Infinity;
			var maxY = - Infinity;
			var maxZ = - Infinity;

			for ( var i = 0, l = attribute.count; i < l; i ++ ) {

				var x = attribute.getX( i );
				var y = attribute.getY( i );
				var z = attribute.getZ( i );

				if ( x < minX ) minX = x;
				if ( y < minY ) minY = y;
				if ( z < minZ ) minZ = z;

				if ( x > maxX ) maxX = x;
				if ( y > maxY ) maxY = y;
				if ( z > maxZ ) maxZ = z;

			}

			this.min.set( minX, minY, minZ );
			this.max.set( maxX, maxY, maxZ );

			return this;

		},

		setFromPoints: function ( points ) {

			this.makeEmpty();

			for ( var i = 0, il = points.length; i < il; i ++ ) {

				this.expandByPoint( points[ i ] );

			}

			return this;

		},

		setFromCenterAndSize: function () {

			var v1 = new Vector3();

			return function setFromCenterAndSize( center, size ) {

				var halfSize = v1.copy( size ).multiplyScalar( 0.5 );

				this.min.copy( center ).sub( halfSize );
				this.max.copy( center ).add( halfSize );

				return this;

			};

		}(),

		setFromObject: function ( object ) {

			this.makeEmpty();

			return this.expandByObject( object );

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( box ) {

			this.min.copy( box.min );
			this.max.copy( box.max );

			return this;

		},

		makeEmpty: function () {

			this.min.x = this.min.y = this.min.z = + Infinity;
			this.max.x = this.max.y = this.max.z = - Infinity;

			return this;

		},

		isEmpty: function () {

			// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes

			return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );

		},

		getCenter: function ( optionalTarget ) {

			var result = optionalTarget || new Vector3();
			return this.isEmpty() ? result.set( 0, 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );

		},

		getSize: function ( optionalTarget ) {

			var result = optionalTarget || new Vector3();
			return this.isEmpty() ? result.set( 0, 0, 0 ) : result.subVectors( this.max, this.min );

		},

		expandByPoint: function ( point ) {

			this.min.min( point );
			this.max.max( point );

			return this;

		},

		expandByVector: function ( vector ) {

			this.min.sub( vector );
			this.max.add( vector );

			return this;

		},

		expandByScalar: function ( scalar ) {

			this.min.addScalar( - scalar );
			this.max.addScalar( scalar );

			return this;

		},

		expandByObject: function () {

			// Computes the world-axis-aligned bounding box of an object (including its children),
			// accounting for both the object's, and children's, world transforms

			var v1 = new Vector3();

			return function expandByObject( object ) {

				var scope = this;

				object.updateMatrixWorld( true );

				object.traverse( function ( node ) {

					var i, l;

					var geometry = node.geometry;

					if ( geometry !== undefined ) {

						if ( geometry.isGeometry ) {

							var vertices = geometry.vertices;

							for ( i = 0, l = vertices.length; i < l; i ++ ) {

								v1.copy( vertices[ i ] );
								v1.applyMatrix4( node.matrixWorld );

								scope.expandByPoint( v1 );

							}

						} else if ( geometry.isBufferGeometry ) {

							var attribute = geometry.attributes.position;

							if ( attribute !== undefined ) {

								for ( i = 0, l = attribute.count; i < l; i ++ ) {

									v1.fromBufferAttribute( attribute, i ).applyMatrix4( node.matrixWorld );

									scope.expandByPoint( v1 );

								}

							}

						}

					}

				} );

				return this;

			};

		}(),

		containsPoint: function ( point ) {

			return point.x < this.min.x || point.x > this.max.x ||
				point.y < this.min.y || point.y > this.max.y ||
				point.z < this.min.z || point.z > this.max.z ? false : true;

		},

		containsBox: function ( box ) {

			return this.min.x <= box.min.x && box.max.x <= this.max.x &&
				this.min.y <= box.min.y && box.max.y <= this.max.y &&
				this.min.z <= box.min.z && box.max.z <= this.max.z;

		},

		getParameter: function ( point, optionalTarget ) {

			// This can potentially have a divide by zero if the box
			// has a size dimension of 0.

			var result = optionalTarget || new Vector3();

			return result.set(
				( point.x - this.min.x ) / ( this.max.x - this.min.x ),
				( point.y - this.min.y ) / ( this.max.y - this.min.y ),
				( point.z - this.min.z ) / ( this.max.z - this.min.z )
			);

		},

		intersectsBox: function ( box ) {

			// using 6 splitting planes to rule out intersections.
			return box.max.x < this.min.x || box.min.x > this.max.x ||
				box.max.y < this.min.y || box.min.y > this.max.y ||
				box.max.z < this.min.z || box.min.z > this.max.z ? false : true;

		},

		intersectsSphere: ( function () {

			var closestPoint = new Vector3();

			return function intersectsSphere( sphere ) {

				// Find the point on the AABB closest to the sphere center.
				this.clampPoint( sphere.center, closestPoint );

				// If that point is inside the sphere, the AABB and sphere intersect.
				return closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );

			};

		} )(),

		intersectsPlane: function ( plane ) {

			// We compute the minimum and maximum dot product values. If those values
			// are on the same side (back or front) of the plane, then there is no intersection.

			var min, max;

			if ( plane.normal.x > 0 ) {

				min = plane.normal.x * this.min.x;
				max = plane.normal.x * this.max.x;

			} else {

				min = plane.normal.x * this.max.x;
				max = plane.normal.x * this.min.x;

			}

			if ( plane.normal.y > 0 ) {

				min += plane.normal.y * this.min.y;
				max += plane.normal.y * this.max.y;

			} else {

				min += plane.normal.y * this.max.y;
				max += plane.normal.y * this.min.y;

			}

			if ( plane.normal.z > 0 ) {

				min += plane.normal.z * this.min.z;
				max += plane.normal.z * this.max.z;

			} else {

				min += plane.normal.z * this.max.z;
				max += plane.normal.z * this.min.z;

			}

			return ( min <= plane.constant && max >= plane.constant );

		},

		clampPoint: function ( point, optionalTarget ) {

			var result = optionalTarget || new Vector3();
			return result.copy( point ).clamp( this.min, this.max );

		},

		distanceToPoint: function () {

			var v1 = new Vector3();

			return function distanceToPoint( point ) {

				var clampedPoint = v1.copy( point ).clamp( this.min, this.max );
				return clampedPoint.sub( point ).length();

			};

		}(),

		getBoundingSphere: function () {

			var v1 = new Vector3();

			return function getBoundingSphere( optionalTarget ) {

				var result = optionalTarget || new Sphere();

				this.getCenter( result.center );

				result.radius = this.getSize( v1 ).length() * 0.5;

				return result;

			};

		}(),

		intersect: function ( box ) {

			this.min.max( box.min );
			this.max.min( box.max );

			// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
			if( this.isEmpty() ) this.makeEmpty();

			return this;

		},

		union: function ( box ) {

			this.min.min( box.min );
			this.max.max( box.max );

			return this;

		},

		applyMatrix4: function () {

			var points = [
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3(),
				new Vector3()
			];

			return function applyMatrix4( matrix ) {

				// transform of empty box is an empty box.
				if( this.isEmpty() ) return this;

				// NOTE: I am using a binary pattern to specify all 2^3 combinations below
				points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000
				points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001
				points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010
				points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011
				points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100
				points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101
				points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110
				points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix );	// 111

				this.setFromPoints( points );

				return this;

			};

		}(),

		translate: function ( offset ) {

			this.min.add( offset );
			this.max.add( offset );

			return this;

		},

		equals: function ( box ) {

			return box.min.equals( this.min ) && box.max.equals( this.max );

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Sphere( center, radius ) {

		this.center = ( center !== undefined ) ? center : new Vector3();
		this.radius = ( radius !== undefined ) ? radius : 0;

	}

	Object.assign( Sphere.prototype, {

		set: function ( center, radius ) {

			this.center.copy( center );
			this.radius = radius;

			return this;

		},

		setFromPoints: function () {

			var box = new Box3();

			return function setFromPoints( points, optionalCenter ) {

				var center = this.center;

				if ( optionalCenter !== undefined ) {

					center.copy( optionalCenter );

				} else {

					box.setFromPoints( points ).getCenter( center );

				}

				var maxRadiusSq = 0;

				for ( var i = 0, il = points.length; i < il; i ++ ) {

					maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );

				}

				this.radius = Math.sqrt( maxRadiusSq );

				return this;

			};

		}(),

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( sphere ) {

			this.center.copy( sphere.center );
			this.radius = sphere.radius;

			return this;

		},

		empty: function () {

			return ( this.radius <= 0 );

		},

		containsPoint: function ( point ) {

			return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );

		},

		distanceToPoint: function ( point ) {

			return ( point.distanceTo( this.center ) - this.radius );

		},

		intersectsSphere: function ( sphere ) {

			var radiusSum = this.radius + sphere.radius;

			return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );

		},

		intersectsBox: function ( box ) {

			return box.intersectsSphere( this );

		},

		intersectsPlane: function ( plane ) {

			// We use the following equation to compute the signed distance from
			// the center of the sphere to the plane.
			//
			// distance = q * n - d
			//
			// If this distance is greater than the radius of the sphere,
			// then there is no intersection.

			return Math.abs( this.center.dot( plane.normal ) - plane.constant ) <= this.radius;

		},

		clampPoint: function ( point, optionalTarget ) {

			var deltaLengthSq = this.center.distanceToSquared( point );

			var result = optionalTarget || new Vector3();

			result.copy( point );

			if ( deltaLengthSq > ( this.radius * this.radius ) ) {

				result.sub( this.center ).normalize();
				result.multiplyScalar( this.radius ).add( this.center );

			}

			return result;

		},

		getBoundingBox: function ( optionalTarget ) {

			var box = optionalTarget || new Box3();

			box.set( this.center, this.center );
			box.expandByScalar( this.radius );

			return box;

		},

		applyMatrix4: function ( matrix ) {

			this.center.applyMatrix4( matrix );
			this.radius = this.radius * matrix.getMaxScaleOnAxis();

			return this;

		},

		translate: function ( offset ) {

			this.center.add( offset );

			return this;

		},

		equals: function ( sphere ) {

			return sphere.center.equals( this.center ) && ( sphere.radius === this.radius );

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author WestLangley / http://github.com/WestLangley
	 * @author bhouston / http://clara.io
	 * @author tschw
	 */

	function Matrix3() {

		this.elements = [

			1, 0, 0,
			0, 1, 0,
			0, 0, 1

		];

		if ( arguments.length > 0 ) {

			console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );

		}

	}

	Object.assign( Matrix3.prototype, {

		isMatrix3: true,

		set: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {

			var te = this.elements;

			te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;
			te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;
			te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;

			return this;

		},

		identity: function () {

			this.set(

				1, 0, 0,
				0, 1, 0,
				0, 0, 1

			);

			return this;

		},

		clone: function () {

			return new this.constructor().fromArray( this.elements );

		},

		copy: function ( m ) {

			var te = this.elements;
			var me = m.elements;

			te[ 0 ] = me[ 0 ]; te[ 1 ] = me[ 1 ]; te[ 2 ] = me[ 2 ];
			te[ 3 ] = me[ 3 ]; te[ 4 ] = me[ 4 ]; te[ 5 ] = me[ 5 ];
			te[ 6 ] = me[ 6 ]; te[ 7 ] = me[ 7 ]; te[ 8 ] = me[ 8 ];

			return this;

		},

		setFromMatrix4: function ( m ) {

			var me = m.elements;

			this.set(

				me[ 0 ], me[ 4 ], me[  8 ],
				me[ 1 ], me[ 5 ], me[  9 ],
				me[ 2 ], me[ 6 ], me[ 10 ]

			);

			return this;

		},

		applyToBufferAttribute: function () {

			var v1 = new Vector3();

			return function applyToBufferAttribute( attribute ) {

				for ( var i = 0, l = attribute.count; i < l; i ++ ) {

					v1.x = attribute.getX( i );
					v1.y = attribute.getY( i );
					v1.z = attribute.getZ( i );

					v1.applyMatrix3( this );

					attribute.setXYZ( i, v1.x, v1.y, v1.z );

				}

				return attribute;

			};

		}(),

		multiply: function ( m ) {

			return this.multiplyMatrices( this, m );

		},

		premultiply: function ( m ) {

			return this.multiplyMatrices( m, this );

		},

		multiplyMatrices: function ( a, b ) {

			var ae = a.elements;
			var be = b.elements;
			var te = this.elements;

			var a11 = ae[ 0 ], a12 = ae[ 3 ], a13 = ae[ 6 ];
			var a21 = ae[ 1 ], a22 = ae[ 4 ], a23 = ae[ 7 ];
			var a31 = ae[ 2 ], a32 = ae[ 5 ], a33 = ae[ 8 ];

			var b11 = be[ 0 ], b12 = be[ 3 ], b13 = be[ 6 ];
			var b21 = be[ 1 ], b22 = be[ 4 ], b23 = be[ 7 ];
			var b31 = be[ 2 ], b32 = be[ 5 ], b33 = be[ 8 ];

			te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31;
			te[ 3 ] = a11 * b12 + a12 * b22 + a13 * b32;
			te[ 6 ] = a11 * b13 + a12 * b23 + a13 * b33;

			te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31;
			te[ 4 ] = a21 * b12 + a22 * b22 + a23 * b32;
			te[ 7 ] = a21 * b13 + a22 * b23 + a23 * b33;

			te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31;
			te[ 5 ] = a31 * b12 + a32 * b22 + a33 * b32;
			te[ 8 ] = a31 * b13 + a32 * b23 + a33 * b33;

			return this;

		},

		multiplyScalar: function ( s ) {

			var te = this.elements;

			te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;
			te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;
			te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;

			return this;

		},

		determinant: function () {

			var te = this.elements;

			var a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],
				d = te[ 3 ], e = te[ 4 ], f = te[ 5 ],
				g = te[ 6 ], h = te[ 7 ], i = te[ 8 ];

			return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;

		},

		getInverse: function ( matrix, throwOnDegenerate ) {

			if ( matrix && matrix.isMatrix4 ) {

				console.error( "THREE.Matrix3.getInverse no longer takes a Matrix4 argument." );

			}

			var me = matrix.elements,
				te = this.elements,

				n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ],
				n12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ],
				n13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ],

				t11 = n33 * n22 - n32 * n23,
				t12 = n32 * n13 - n33 * n12,
				t13 = n23 * n12 - n22 * n13,

				det = n11 * t11 + n21 * t12 + n31 * t13;

			if ( det === 0 ) {

				var msg = "THREE.Matrix3.getInverse(): can't invert matrix, determinant is 0";

				if ( throwOnDegenerate === true ) {

					throw new Error( msg );

				} else {

					console.warn( msg );

				}

				return this.identity();

			}

			var detInv = 1 / det;

			te[ 0 ] = t11 * detInv;
			te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;
			te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;

			te[ 3 ] = t12 * detInv;
			te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;
			te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;

			te[ 6 ] = t13 * detInv;
			te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;
			te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;

			return this;

		},

		transpose: function () {

			var tmp, m = this.elements;

			tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;
			tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;
			tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;

			return this;

		},

		getNormalMatrix: function ( matrix4 ) {

			return this.setFromMatrix4( matrix4 ).getInverse( this ).transpose();

		},

		transposeIntoArray: function ( r ) {

			var m = this.elements;

			r[ 0 ] = m[ 0 ];
			r[ 1 ] = m[ 3 ];
			r[ 2 ] = m[ 6 ];
			r[ 3 ] = m[ 1 ];
			r[ 4 ] = m[ 4 ];
			r[ 5 ] = m[ 7 ];
			r[ 6 ] = m[ 2 ];
			r[ 7 ] = m[ 5 ];
			r[ 8 ] = m[ 8 ];

			return this;

		},

		equals: function ( matrix ) {

			var te = this.elements;
			var me = matrix.elements;

			for ( var i = 0; i < 9; i ++ ) {

				if ( te[ i ] !== me[ i ] ) return false;

			}

			return true;

		},

		fromArray: function ( array, offset ) {

			if ( offset === undefined ) offset = 0;

			for ( var i = 0; i < 9; i ++ ) {

				this.elements[ i ] = array[ i + offset ];

			}

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			var te = this.elements;

			array[ offset ] = te[ 0 ];
			array[ offset + 1 ] = te[ 1 ];
			array[ offset + 2 ] = te[ 2 ];

			array[ offset + 3 ] = te[ 3 ];
			array[ offset + 4 ] = te[ 4 ];
			array[ offset + 5 ] = te[ 5 ];

			array[ offset + 6 ] = te[ 6 ];
			array[ offset + 7 ] = te[ 7 ];
			array[ offset + 8 ] = te[ 8 ];

			return array;

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 */

	function Plane( normal, constant ) {

		this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );
		this.constant = ( constant !== undefined ) ? constant : 0;

	}

	Object.assign( Plane.prototype, {

		set: function ( normal, constant ) {

			this.normal.copy( normal );
			this.constant = constant;

			return this;

		},

		setComponents: function ( x, y, z, w ) {

			this.normal.set( x, y, z );
			this.constant = w;

			return this;

		},

		setFromNormalAndCoplanarPoint: function ( normal, point ) {

			this.normal.copy( normal );
			this.constant = - point.dot( this.normal );	// must be this.normal, not normal, as this.normal is normalized

			return this;

		},

		setFromCoplanarPoints: function () {

			var v1 = new Vector3();
			var v2 = new Vector3();

			return function setFromCoplanarPoints( a, b, c ) {

				var normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();

				// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?

				this.setFromNormalAndCoplanarPoint( normal, a );

				return this;

			};

		}(),

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( plane ) {

			this.normal.copy( plane.normal );
			this.constant = plane.constant;

			return this;

		},

		normalize: function () {

			// Note: will lead to a divide by zero if the plane is invalid.

			var inverseNormalLength = 1.0 / this.normal.length();
			this.normal.multiplyScalar( inverseNormalLength );
			this.constant *= inverseNormalLength;

			return this;

		},

		negate: function () {

			this.constant *= - 1;
			this.normal.negate();

			return this;

		},

		distanceToPoint: function ( point ) {

			return this.normal.dot( point ) + this.constant;

		},

		distanceToSphere: function ( sphere ) {

			return this.distanceToPoint( sphere.center ) - sphere.radius;

		},

		projectPoint: function ( point, optionalTarget ) {

			return this.orthoPoint( point, optionalTarget ).sub( point ).negate();

		},

		orthoPoint: function ( point, optionalTarget ) {

			var perpendicularMagnitude = this.distanceToPoint( point );

			var result = optionalTarget || new Vector3();
			return result.copy( this.normal ).multiplyScalar( perpendicularMagnitude );

		},

		intersectLine: function () {

			var v1 = new Vector3();

			return function intersectLine( line, optionalTarget ) {

				var result = optionalTarget || new Vector3();

				var direction = line.delta( v1 );

				var denominator = this.normal.dot( direction );

				if ( denominator === 0 ) {

					// line is coplanar, return origin
					if ( this.distanceToPoint( line.start ) === 0 ) {

						return result.copy( line.start );

					}

					// Unsure if this is the correct method to handle this case.
					return undefined;

				}

				var t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;

				if ( t < 0 || t > 1 ) {

					return undefined;

				}

				return result.copy( direction ).multiplyScalar( t ).add( line.start );

			};

		}(),

		intersectsLine: function ( line ) {

			// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.

			var startSign = this.distanceToPoint( line.start );
			var endSign = this.distanceToPoint( line.end );

			return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );

		},

		intersectsBox: function ( box ) {

			return box.intersectsPlane( this );

		},

		intersectsSphere: function ( sphere ) {

			return sphere.intersectsPlane( this );

		},

		coplanarPoint: function ( optionalTarget ) {

			var result = optionalTarget || new Vector3();
			return result.copy( this.normal ).multiplyScalar( - this.constant );

		},

		applyMatrix4: function () {

			var v1 = new Vector3();
			var m1 = new Matrix3();

			return function applyMatrix4( matrix, optionalNormalMatrix ) {

				var referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix );

				// transform normal based on theory here:
				// http://www.songho.ca/opengl/gl_normaltransform.html
				var normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );
				var normal = this.normal.applyMatrix3( normalMatrix ).normalize();

				// recalculate constant (like in setFromNormalAndCoplanarPoint)
				this.constant = - referencePoint.dot( normal );

				return this;

			};

		}(),

		translate: function ( offset ) {

			this.constant = this.constant - offset.dot( this.normal );

			return this;

		},

		equals: function ( plane ) {

			return plane.normal.equals( this.normal ) && ( plane.constant === this.constant );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author bhouston / http://clara.io
	 */

	function Frustum( p0, p1, p2, p3, p4, p5 ) {

		this.planes = [

			( p0 !== undefined ) ? p0 : new Plane(),
			( p1 !== undefined ) ? p1 : new Plane(),
			( p2 !== undefined ) ? p2 : new Plane(),
			( p3 !== undefined ) ? p3 : new Plane(),
			( p4 !== undefined ) ? p4 : new Plane(),
			( p5 !== undefined ) ? p5 : new Plane()

		];

	}

	Object.assign( Frustum.prototype, {

		set: function ( p0, p1, p2, p3, p4, p5 ) {

			var planes = this.planes;

			planes[ 0 ].copy( p0 );
			planes[ 1 ].copy( p1 );
			planes[ 2 ].copy( p2 );
			planes[ 3 ].copy( p3 );
			planes[ 4 ].copy( p4 );
			planes[ 5 ].copy( p5 );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( frustum ) {

			var planes = this.planes;

			for ( var i = 0; i < 6; i ++ ) {

				planes[ i ].copy( frustum.planes[ i ] );

			}

			return this;

		},

		setFromMatrix: function ( m ) {

			var planes = this.planes;
			var me = m.elements;
			var me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];
			var me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];
			var me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];
			var me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];

			planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();
			planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();
			planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();
			planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();
			planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();
			planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();

			return this;

		},

		intersectsObject: function () {

			var sphere = new Sphere();

			return function intersectsObject( object ) {

				var geometry = object.geometry;

				if ( geometry.boundingSphere === null )
					geometry.computeBoundingSphere();

				sphere.copy( geometry.boundingSphere )
					.applyMatrix4( object.matrixWorld );

				return this.intersectsSphere( sphere );

			};

		}(),

		intersectsSprite: function () {

			var sphere = new Sphere();

			return function intersectsSprite( sprite ) {

				sphere.center.set( 0, 0, 0 );
				sphere.radius = 0.7071067811865476;
				sphere.applyMatrix4( sprite.matrixWorld );

				return this.intersectsSphere( sphere );

			};

		}(),

		intersectsSphere: function ( sphere ) {

			var planes = this.planes;
			var center = sphere.center;
			var negRadius = - sphere.radius;

			for ( var i = 0; i < 6; i ++ ) {

				var distance = planes[ i ].distanceToPoint( center );

				if ( distance < negRadius ) {

					return false;

				}

			}

			return true;

		},

		intersectsBox: function () {

			var p1 = new Vector3(),
				p2 = new Vector3();

			return function intersectsBox( box ) {

				var planes = this.planes;

				for ( var i = 0; i < 6; i ++ ) {

					var plane = planes[ i ];

					p1.x = plane.normal.x > 0 ? box.min.x : box.max.x;
					p2.x = plane.normal.x > 0 ? box.max.x : box.min.x;
					p1.y = plane.normal.y > 0 ? box.min.y : box.max.y;
					p2.y = plane.normal.y > 0 ? box.max.y : box.min.y;
					p1.z = plane.normal.z > 0 ? box.min.z : box.max.z;
					p2.z = plane.normal.z > 0 ? box.max.z : box.min.z;

					var d1 = plane.distanceToPoint( p1 );
					var d2 = plane.distanceToPoint( p2 );

					// if both outside plane, no intersection

					if ( d1 < 0 && d2 < 0 ) {

						return false;

					}

				}

				return true;

			};

		}(),

		containsPoint: function ( point ) {

			var planes = this.planes;

			for ( var i = 0; i < 6; i ++ ) {

				if ( planes[ i ].distanceToPoint( point ) < 0 ) {

					return false;

				}

			}

			return true;

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLShadowMap( _renderer, _lights, _objects, capabilities ) {

		var _gl = _renderer.context,
			_state = _renderer.state,
			_frustum = new Frustum(),
			_projScreenMatrix = new Matrix4(),

			_lightShadows = _lights.shadows,

			_shadowMapSize = new Vector2(),
			_maxShadowMapSize = new Vector2( capabilities.maxTextureSize, capabilities.maxTextureSize ),

			_lookTarget = new Vector3(),
			_lightPositionWorld = new Vector3(),

			_MorphingFlag = 1,
			_SkinningFlag = 2,

			_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,

			_depthMaterials = new Array( _NumberOfMaterialVariants ),
			_distanceMaterials = new Array( _NumberOfMaterialVariants ),

			_materialCache = {};

		var cubeDirections = [
			new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),
			new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )
		];

		var cubeUps = [
			new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),
			new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),	new Vector3( 0, 0, - 1 )
		];

		var cube2DViewPorts = [
			new Vector4(), new Vector4(), new Vector4(),
			new Vector4(), new Vector4(), new Vector4()
		];

		// init

		var depthMaterialTemplate = new MeshDepthMaterial();
		depthMaterialTemplate.depthPacking = RGBADepthPacking;
		depthMaterialTemplate.clipping = true;

		var distanceShader = ShaderLib[ "distanceRGBA" ];
		var distanceUniforms = UniformsUtils.clone( distanceShader.uniforms );

		for ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {

			var useMorphing = ( i & _MorphingFlag ) !== 0;
			var useSkinning = ( i & _SkinningFlag ) !== 0;

			var depthMaterial = depthMaterialTemplate.clone();
			depthMaterial.morphTargets = useMorphing;
			depthMaterial.skinning = useSkinning;

			_depthMaterials[ i ] = depthMaterial;

			var distanceMaterial = new ShaderMaterial( {
				defines: {
					'USE_SHADOWMAP': ''
				},
				uniforms: distanceUniforms,
				vertexShader: distanceShader.vertexShader,
				fragmentShader: distanceShader.fragmentShader,
				morphTargets: useMorphing,
				skinning: useSkinning,
				clipping: true
			} );

			_distanceMaterials[ i ] = distanceMaterial;

		}

		//

		var scope = this;

		this.enabled = false;

		this.autoUpdate = true;
		this.needsUpdate = false;

		this.type = PCFShadowMap;

		this.renderReverseSided = true;
		this.renderSingleSided = true;

		this.render = function ( scene, camera ) {

			if ( scope.enabled === false ) return;
			if ( scope.autoUpdate === false && scope.needsUpdate === false ) return;

			if ( _lightShadows.length === 0 ) return;

			// Set GL state for depth map.
			_state.disable( _gl.BLEND );
			_state.buffers.color.setClear( 1, 1, 1, 1 );
			_state.buffers.depth.setTest( true );
			_state.setScissorTest( false );

			// render depth map

			var faceCount;

			for ( var i = 0, il = _lightShadows.length; i < il; i ++ ) {

				var light = _lightShadows[ i ];
				var shadow = light.shadow;
				var isPointLight = light && light.isPointLight;

				if ( shadow === undefined ) {

					console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );
					continue;

				}

				var shadowCamera = shadow.camera;

				_shadowMapSize.copy( shadow.mapSize );
				_shadowMapSize.min( _maxShadowMapSize );

				if ( isPointLight ) {

					var vpWidth = _shadowMapSize.x;
					var vpHeight = _shadowMapSize.y;

					// These viewports map a cube-map onto a 2D texture with the
					// following orientation:
					//
					//  xzXZ
					//   y Y
					//
					// X - Positive x direction
					// x - Negative x direction
					// Y - Positive y direction
					// y - Negative y direction
					// Z - Positive z direction
					// z - Negative z direction

					// positive X
					cube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );
					// negative X
					cube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );
					// positive Z
					cube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );
					// negative Z
					cube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );
					// positive Y
					cube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );
					// negative Y
					cube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );

					_shadowMapSize.x *= 4.0;
					_shadowMapSize.y *= 2.0;

				}

				if ( shadow.map === null ) {

					var pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };

					shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );
					shadow.map.texture.name = light.name + ".shadowMap";

					shadowCamera.updateProjectionMatrix();

				}

				if ( shadow.isSpotLightShadow ) {

					shadow.update( light );

				}

				var shadowMap = shadow.map;
				var shadowMatrix = shadow.matrix;

				_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );
				shadowCamera.position.copy( _lightPositionWorld );

				if ( isPointLight ) {

					faceCount = 6;

					// for point lights we set the shadow matrix to be a translation-only matrix
					// equal to inverse of the light's position

					shadowMatrix.makeTranslation( - _lightPositionWorld.x, - _lightPositionWorld.y, - _lightPositionWorld.z );

				} else {

					faceCount = 1;

					_lookTarget.setFromMatrixPosition( light.target.matrixWorld );
					shadowCamera.lookAt( _lookTarget );
					shadowCamera.updateMatrixWorld();

					// compute shadow matrix

					shadowMatrix.set(
						0.5, 0.0, 0.0, 0.5,
						0.0, 0.5, 0.0, 0.5,
						0.0, 0.0, 0.5, 0.5,
						0.0, 0.0, 0.0, 1.0
					);

					shadowMatrix.multiply( shadowCamera.projectionMatrix );
					shadowMatrix.multiply( shadowCamera.matrixWorldInverse );

				}

				_renderer.setRenderTarget( shadowMap );
				_renderer.clear();

				// render shadow map for each cube face (if omni-directional) or
				// run a single pass if not

				for ( var face = 0; face < faceCount; face ++ ) {

					if ( isPointLight ) {

						_lookTarget.copy( shadowCamera.position );
						_lookTarget.add( cubeDirections[ face ] );
						shadowCamera.up.copy( cubeUps[ face ] );
						shadowCamera.lookAt( _lookTarget );
						shadowCamera.updateMatrixWorld();

						var vpDimensions = cube2DViewPorts[ face ];
						_state.viewport( vpDimensions );

					}

					// update camera matrices and frustum

					_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );
					_frustum.setFromMatrix( _projScreenMatrix );

					// set object matrices & frustum culling

					renderObject( scene, camera, shadowCamera, isPointLight );

				}

			}

			// Restore GL state.
			var clearColor = _renderer.getClearColor();
			var clearAlpha = _renderer.getClearAlpha();
			_renderer.setClearColor( clearColor, clearAlpha );

			scope.needsUpdate = false;

		};

		function getDepthMaterial( object, material, isPointLight, lightPositionWorld ) {

			var geometry = object.geometry;

			var result = null;

			var materialVariants = _depthMaterials;
			var customMaterial = object.customDepthMaterial;

			if ( isPointLight ) {

				materialVariants = _distanceMaterials;
				customMaterial = object.customDistanceMaterial;

			}

			if ( ! customMaterial ) {

				var useMorphing = false;

				if ( material.morphTargets ) {

					if ( geometry && geometry.isBufferGeometry ) {

						useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;

					} else if ( geometry && geometry.isGeometry ) {

						useMorphing = geometry.morphTargets && geometry.morphTargets.length > 0;

					}

				}

				if ( object.isSkinnedMesh && material.skinning === false ) {

					console.warn( 'THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:', object );

				}

				var useSkinning = object.isSkinnedMesh && material.skinning;

				var variantIndex = 0;

				if ( useMorphing ) variantIndex |= _MorphingFlag;
				if ( useSkinning ) variantIndex |= _SkinningFlag;

				result = materialVariants[ variantIndex ];

			} else {

				result = customMaterial;

			}

			if ( _renderer.localClippingEnabled &&
					material.clipShadows === true &&
					material.clippingPlanes.length !== 0 ) {

				// in this case we need a unique material instance reflecting the
				// appropriate state

				var keyA = result.uuid, keyB = material.uuid;

				var materialsForVariant = _materialCache[ keyA ];

				if ( materialsForVariant === undefined ) {

					materialsForVariant = {};
					_materialCache[ keyA ] = materialsForVariant;

				}

				var cachedMaterial = materialsForVariant[ keyB ];

				if ( cachedMaterial === undefined ) {

					cachedMaterial = result.clone();
					materialsForVariant[ keyB ] = cachedMaterial;

				}

				result = cachedMaterial;

			}

			result.visible = material.visible;
			result.wireframe = material.wireframe;

			var side = material.side;

			if ( scope.renderSingleSided && side == DoubleSide ) {

				side = FrontSide;

			}

			if ( scope.renderReverseSided ) {

				if ( side === FrontSide ) side = BackSide;
				else if ( side === BackSide ) side = FrontSide;

			}

			result.side = side;

			result.clipShadows = material.clipShadows;
			result.clippingPlanes = material.clippingPlanes;

			result.wireframeLinewidth = material.wireframeLinewidth;
			result.linewidth = material.linewidth;

			if ( isPointLight && result.uniforms.lightPos !== undefined ) {

				result.uniforms.lightPos.value.copy( lightPositionWorld );

			}

			return result;

		}

		function renderObject( object, camera, shadowCamera, isPointLight ) {

			if ( object.visible === false ) return;

			var visible = object.layers.test( camera.layers );

			if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {

				if ( object.castShadow && ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) ) {

					object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );

					var geometry = _objects.update( object );
					var material = object.material;

					if ( Array.isArray( material ) ) {

						var groups = geometry.groups;

						for ( var k = 0, kl = groups.length; k < kl; k ++ ) {

							var group = groups[ k ];
							var groupMaterial = material[ group.materialIndex ];

							if ( groupMaterial && groupMaterial.visible ) {

								var depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld );
								_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );

							}

						}

					} else if ( material.visible ) {

						var depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld );
						_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );

					}

				}

			}

			var children = object.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				renderObject( children[ i ], camera, shadowCamera, isPointLight );

			}

		}

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLAttributes( gl ) {

		var buffers = {};

		function createBuffer( attribute, bufferType ) {

			var array = attribute.array;
			var usage = attribute.dynamic ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW;

			var buffer = gl.createBuffer();

			gl.bindBuffer( bufferType, buffer );
			gl.bufferData( bufferType, array, usage );

			attribute.onUploadCallback();

			var type = gl.FLOAT;

			if ( array instanceof Float32Array ) {

				type = gl.FLOAT;

			} else if ( array instanceof Float64Array ) {

				console.warn( 'THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.' );

			} else if ( array instanceof Uint16Array ) {

				type = gl.UNSIGNED_SHORT;

			} else if ( array instanceof Int16Array ) {

				type = gl.SHORT;

			} else if ( array instanceof Uint32Array ) {

				type = gl.UNSIGNED_INT;

			} else if ( array instanceof Int32Array ) {

				type = gl.INT;

			} else if ( array instanceof Int8Array ) {

				type = gl.BYTE;

			} else if ( array instanceof Uint8Array ) {

				type = gl.UNSIGNED_BYTE;

			}

			return {
				buffer: buffer,
				type: type,
				bytesPerElement: array.BYTES_PER_ELEMENT,
				version: attribute.version
			};

		}

		function updateBuffer( buffer, attribute, bufferType ) {

			var array = attribute.array;
			var updateRange = attribute.updateRange;

			gl.bindBuffer( bufferType, buffer );

			if ( attribute.dynamic === false ) {

				gl.bufferData( bufferType, array, gl.STATIC_DRAW );

			} else if ( updateRange.count === - 1 ) {

				// Not using update ranges

				gl.bufferSubData( bufferType, 0, array );

			} else if ( updateRange.count === 0 ) {

				console.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );

			} else {

				gl.bufferSubData( bufferType, updateRange.offset * array.BYTES_PER_ELEMENT,
					array.subarray( updateRange.offset, updateRange.offset + updateRange.count ) );

				updateRange.count = -1; // reset range

			}

		}

		//

		function get( attribute ) {

			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

			return buffers[ attribute.uuid ];

		}

		function remove( attribute ) {

			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;
			
			var data = buffers[ attribute.uuid ];

			if ( data ) {

				gl.deleteBuffer( data.buffer );

				delete buffers[ attribute.uuid ];

			}

		}

		function update( attribute, bufferType ) {

			if ( attribute.isInterleavedBufferAttribute ) attribute = attribute.data;

			var data = buffers[ attribute.uuid ];

			if ( data === undefined ) {

				buffers[ attribute.uuid ] = createBuffer( attribute, bufferType );

			} else if ( data.version < attribute.version ) {

				updateBuffer( data.buffer, attribute, bufferType );

				data.version = attribute.version;

			}

		}

		return {

			get: get,
			remove: remove,
			update: update

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	 * @author bhouston / http://clara.io
	 */

	function Euler( x, y, z, order ) {

		this._x = x || 0;
		this._y = y || 0;
		this._z = z || 0;
		this._order = order || Euler.DefaultOrder;

	}

	Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];

	Euler.DefaultOrder = 'XYZ';

	Object.defineProperties( Euler.prototype, {

		x: {

			get: function () {

				return this._x;

			},

			set: function ( value ) {

				this._x = value;
				this.onChangeCallback();

			}

		},

		y: {

			get: function () {

				return this._y;

			},

			set: function ( value ) {

				this._y = value;
				this.onChangeCallback();

			}

		},

		z: {

			get: function () {

				return this._z;

			},

			set: function ( value ) {

				this._z = value;
				this.onChangeCallback();

			}

		},

		order: {

			get: function () {

				return this._order;

			},

			set: function ( value ) {

				this._order = value;
				this.onChangeCallback();

			}

		}

	} );

	Object.assign( Euler.prototype, {

		isEuler: true,

		set: function ( x, y, z, order ) {

			this._x = x;
			this._y = y;
			this._z = z;
			this._order = order || this._order;

			this.onChangeCallback();

			return this;

		},

		clone: function () {

			return new this.constructor( this._x, this._y, this._z, this._order );

		},

		copy: function ( euler ) {

			this._x = euler._x;
			this._y = euler._y;
			this._z = euler._z;
			this._order = euler._order;

			this.onChangeCallback();

			return this;

		},

		setFromRotationMatrix: function ( m, order, update ) {

			var clamp = _Math.clamp;

			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

			var te = m.elements;
			var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];
			var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];
			var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];

			order = order || this._order;

			if ( order === 'XYZ' ) {

				this._y = Math.asin( clamp( m13, - 1, 1 ) );

				if ( Math.abs( m13 ) < 0.99999 ) {

					this._x = Math.atan2( - m23, m33 );
					this._z = Math.atan2( - m12, m11 );

				} else {

					this._x = Math.atan2( m32, m22 );
					this._z = 0;

				}

			} else if ( order === 'YXZ' ) {

				this._x = Math.asin( - clamp( m23, - 1, 1 ) );

				if ( Math.abs( m23 ) < 0.99999 ) {

					this._y = Math.atan2( m13, m33 );
					this._z = Math.atan2( m21, m22 );

				} else {

					this._y = Math.atan2( - m31, m11 );
					this._z = 0;

				}

			} else if ( order === 'ZXY' ) {

				this._x = Math.asin( clamp( m32, - 1, 1 ) );

				if ( Math.abs( m32 ) < 0.99999 ) {

					this._y = Math.atan2( - m31, m33 );
					this._z = Math.atan2( - m12, m22 );

				} else {

					this._y = 0;
					this._z = Math.atan2( m21, m11 );

				}

			} else if ( order === 'ZYX' ) {

				this._y = Math.asin( - clamp( m31, - 1, 1 ) );

				if ( Math.abs( m31 ) < 0.99999 ) {

					this._x = Math.atan2( m32, m33 );
					this._z = Math.atan2( m21, m11 );

				} else {

					this._x = 0;
					this._z = Math.atan2( - m12, m22 );

				}

			} else if ( order === 'YZX' ) {

				this._z = Math.asin( clamp( m21, - 1, 1 ) );

				if ( Math.abs( m21 ) < 0.99999 ) {

					this._x = Math.atan2( - m23, m22 );
					this._y = Math.atan2( - m31, m11 );

				} else {

					this._x = 0;
					this._y = Math.atan2( m13, m33 );

				}

			} else if ( order === 'XZY' ) {

				this._z = Math.asin( - clamp( m12, - 1, 1 ) );

				if ( Math.abs( m12 ) < 0.99999 ) {

					this._x = Math.atan2( m32, m22 );
					this._y = Math.atan2( m13, m11 );

				} else {

					this._x = Math.atan2( - m23, m33 );
					this._y = 0;

				}

			} else {

				console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );

			}

			this._order = order;

			if ( update !== false ) this.onChangeCallback();

			return this;

		},

		setFromQuaternion: function () {

			var matrix = new Matrix4();

			return function setFromQuaternion( q, order, update ) {

				matrix.makeRotationFromQuaternion( q );

				return this.setFromRotationMatrix( matrix, order, update );

			};

		}(),

		setFromVector3: function ( v, order ) {

			return this.set( v.x, v.y, v.z, order || this._order );

		},

		reorder: function () {

			// WARNING: this discards revolution information -bhouston

			var q = new Quaternion();

			return function reorder( newOrder ) {

				q.setFromEuler( this );

				return this.setFromQuaternion( q, newOrder );

			};

		}(),

		equals: function ( euler ) {

			return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );

		},

		fromArray: function ( array ) {

			this._x = array[ 0 ];
			this._y = array[ 1 ];
			this._z = array[ 2 ];
			if ( array[ 3 ] !== undefined ) this._order = array[ 3 ];

			this.onChangeCallback();

			return this;

		},

		toArray: function ( array, offset ) {

			if ( array === undefined ) array = [];
			if ( offset === undefined ) offset = 0;

			array[ offset ] = this._x;
			array[ offset + 1 ] = this._y;
			array[ offset + 2 ] = this._z;
			array[ offset + 3 ] = this._order;

			return array;

		},

		toVector3: function ( optionalResult ) {

			if ( optionalResult ) {

				return optionalResult.set( this._x, this._y, this._z );

			} else {

				return new Vector3( this._x, this._y, this._z );

			}

		},

		onChange: function ( callback ) {

			this.onChangeCallback = callback;

			return this;

		},

		onChangeCallback: function () {}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Layers() {

		this.mask = 1 | 0;

	}

	Object.assign( Layers.prototype, {

		set: function ( channel ) {

			this.mask = 1 << channel | 0;

		},

		enable: function ( channel ) {

			this.mask |= 1 << channel | 0;

		},

		toggle: function ( channel ) {

			this.mask ^= 1 << channel | 0;

		},

		disable: function ( channel ) {

			this.mask &= ~ ( 1 << channel | 0 );

		},

		test: function ( layers ) {

			return ( this.mask & layers.mask ) !== 0;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author WestLangley / http://github.com/WestLangley
	 * @author elephantatwork / www.elephantatwork.ch
	 */

	var object3DId = 0;

	function Object3D() {

		Object.defineProperty( this, 'id', { value: object3DId ++ } );

		this.uuid = _Math.generateUUID();

		this.name = '';
		this.type = 'Object3D';

		this.parent = null;
		this.children = [];

		this.up = Object3D.DefaultUp.clone();

		var position = new Vector3();
		var rotation = new Euler();
		var quaternion = new Quaternion();
		var scale = new Vector3( 1, 1, 1 );

		function onRotationChange() {

			quaternion.setFromEuler( rotation, false );

		}

		function onQuaternionChange() {

			rotation.setFromQuaternion( quaternion, undefined, false );

		}

		rotation.onChange( onRotationChange );
		quaternion.onChange( onQuaternionChange );

		Object.defineProperties( this, {
			position: {
				enumerable: true,
				value: position
			},
			rotation: {
				enumerable: true,
				value: rotation
			},
			quaternion: {
				enumerable: true,
				value: quaternion
			},
			scale: {
				enumerable: true,
				value: scale
			},
			modelViewMatrix: {
				value: new Matrix4()
			},
			normalMatrix: {
				value: new Matrix3()
			}
		} );

		this.matrix = new Matrix4();
		this.matrixWorld = new Matrix4();

		this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;
		this.matrixWorldNeedsUpdate = false;

		this.layers = new Layers();
		this.visible = true;

		this.castShadow = false;
		this.receiveShadow = false;

		this.frustumCulled = true;
		this.renderOrder = 0;

		this.userData = {};
	}

	Object3D.DefaultUp = new Vector3( 0, 1, 0 );
	Object3D.DefaultMatrixAutoUpdate = true;

	Object.assign( Object3D.prototype, EventDispatcher.prototype, {

		isObject3D: true,

		onBeforeRender: function () {},
		onAfterRender: function () {},

		applyMatrix: function ( matrix ) {

			this.matrix.multiplyMatrices( matrix, this.matrix );

			this.matrix.decompose( this.position, this.quaternion, this.scale );

		},

		applyQuaternion: function ( q ) {

			this.quaternion.premultiply( q );

			return this;

		},

		setRotationFromAxisAngle: function ( axis, angle ) {

			// assumes axis is normalized

			this.quaternion.setFromAxisAngle( axis, angle );

		},

		setRotationFromEuler: function ( euler ) {

			this.quaternion.setFromEuler( euler, true );

		},

		setRotationFromMatrix: function ( m ) {

			// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)

			this.quaternion.setFromRotationMatrix( m );

		},

		setRotationFromQuaternion: function ( q ) {

			// assumes q is normalized

			this.quaternion.copy( q );

		},

		rotateOnAxis: function () {

			// rotate object on axis in object space
			// axis is assumed to be normalized

			var q1 = new Quaternion();

			return function rotateOnAxis( axis, angle ) {

				q1.setFromAxisAngle( axis, angle );

				this.quaternion.multiply( q1 );

				return this;

			};

		}(),

		rotateX: function () {

			var v1 = new Vector3( 1, 0, 0 );

			return function rotateX( angle ) {

				return this.rotateOnAxis( v1, angle );

			};

		}(),

		rotateY: function () {

			var v1 = new Vector3( 0, 1, 0 );

			return function rotateY( angle ) {

				return this.rotateOnAxis( v1, angle );

			};

		}(),

		rotateZ: function () {

			var v1 = new Vector3( 0, 0, 1 );

			return function rotateZ( angle ) {

				return this.rotateOnAxis( v1, angle );

			};

		}(),

		translateOnAxis: function () {

			// translate object by distance along axis in object space
			// axis is assumed to be normalized

			var v1 = new Vector3();

			return function translateOnAxis( axis, distance ) {

				v1.copy( axis ).applyQuaternion( this.quaternion );

				this.position.add( v1.multiplyScalar( distance ) );

				return this;

			};

		}(),

		translateX: function () {

			var v1 = new Vector3( 1, 0, 0 );

			return function translateX( distance ) {

				return this.translateOnAxis( v1, distance );

			};

		}(),

		translateY: function () {

			var v1 = new Vector3( 0, 1, 0 );

			return function translateY( distance ) {

				return this.translateOnAxis( v1, distance );

			};

		}(),

		translateZ: function () {

			var v1 = new Vector3( 0, 0, 1 );

			return function translateZ( distance ) {

				return this.translateOnAxis( v1, distance );

			};

		}(),

		localToWorld: function ( vector ) {

			return vector.applyMatrix4( this.matrixWorld );

		},

		worldToLocal: function () {

			var m1 = new Matrix4();

			return function worldToLocal( vector ) {

				return vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );

			};

		}(),

		lookAt: function () {

			// This method does not support objects with rotated and/or translated parent(s)

			var m1 = new Matrix4();

			return function lookAt( vector ) {

				if ( this.isCamera ) {

					m1.lookAt( this.position, vector, this.up );

				} else {

					m1.lookAt( vector, this.position, this.up );

				}

				this.quaternion.setFromRotationMatrix( m1 );

			};

		}(),

		add: function ( object ) {

			if ( arguments.length > 1 ) {

				for ( var i = 0; i < arguments.length; i ++ ) {

					this.add( arguments[ i ] );

				}

				return this;

			}

			if ( object === this ) {

				console.error( "THREE.Object3D.add: object can't be added as a child of itself.", object );
				return this;

			}

			if ( ( object && object.isObject3D ) ) {

				if ( object.parent !== null ) {

					object.parent.remove( object );

				}

				object.parent = this;
				object.dispatchEvent( { type: 'added' } );

				this.children.push( object );

			} else {

				console.error( "THREE.Object3D.add: object not an instance of THREE.Object3D.", object );

			}

			return this;

		},

		remove: function ( object ) {

			if ( arguments.length > 1 ) {

				for ( var i = 0; i < arguments.length; i ++ ) {

					this.remove( arguments[ i ] );

				}

				return this;

			}

			var index = this.children.indexOf( object );

			if ( index !== - 1 ) {

				object.parent = null;

				object.dispatchEvent( { type: 'removed' } );

				this.children.splice( index, 1 );

			}

			return this;
			
		},

		getObjectById: function ( id ) {

			return this.getObjectByProperty( 'id', id );

		},

		getObjectByName: function ( name ) {

			return this.getObjectByProperty( 'name', name );

		},

		getObjectByProperty: function ( name, value ) {

			if ( this[ name ] === value ) return this;

			for ( var i = 0, l = this.children.length; i < l; i ++ ) {

				var child = this.children[ i ];
				var object = child.getObjectByProperty( name, value );

				if ( object !== undefined ) {

					return object;

				}

			}

			return undefined;

		},

		getWorldPosition: function ( optionalTarget ) {

			var result = optionalTarget || new Vector3();

			this.updateMatrixWorld( true );

			return result.setFromMatrixPosition( this.matrixWorld );

		},

		getWorldQuaternion: function () {

			var position = new Vector3();
			var scale = new Vector3();

			return function getWorldQuaternion( optionalTarget ) {

				var result = optionalTarget || new Quaternion();

				this.updateMatrixWorld( true );

				this.matrixWorld.decompose( position, result, scale );

				return result;

			};

		}(),

		getWorldRotation: function () {

			var quaternion = new Quaternion();

			return function getWorldRotation( optionalTarget ) {

				var result = optionalTarget || new Euler();

				this.getWorldQuaternion( quaternion );

				return result.setFromQuaternion( quaternion, this.rotation.order, false );

			};

		}(),

		getWorldScale: function () {

			var position = new Vector3();
			var quaternion = new Quaternion();

			return function getWorldScale( optionalTarget ) {

				var result = optionalTarget || new Vector3();

				this.updateMatrixWorld( true );

				this.matrixWorld.decompose( position, quaternion, result );

				return result;

			};

		}(),

		getWorldDirection: function () {

			var quaternion = new Quaternion();

			return function getWorldDirection( optionalTarget ) {

				var result = optionalTarget || new Vector3();

				this.getWorldQuaternion( quaternion );

				return result.set( 0, 0, 1 ).applyQuaternion( quaternion );

			};

		}(),

		raycast: function () {},

		traverse: function ( callback ) {

			callback( this );

			var children = this.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				children[ i ].traverse( callback );

			}

		},

		traverseVisible: function ( callback ) {

			if ( this.visible === false ) return;

			callback( this );

			var children = this.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				children[ i ].traverseVisible( callback );

			}

		},

		traverseAncestors: function ( callback ) {

			var parent = this.parent;

			if ( parent !== null ) {

				callback( parent );

				parent.traverseAncestors( callback );

			}

		},

		updateMatrix: function () {

			this.matrix.compose( this.position, this.quaternion, this.scale );

			this.matrixWorldNeedsUpdate = true;

		},

		updateMatrixWorld: function ( force ) {

			if ( this.matrixAutoUpdate ) this.updateMatrix();

			if ( this.matrixWorldNeedsUpdate || force ) {

				if ( this.parent === null ) {

					this.matrixWorld.copy( this.matrix );

				} else {

					this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );

				}

				this.matrixWorldNeedsUpdate = false;

				force = true;

			}

			// update children

			var children = this.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				children[ i ].updateMatrixWorld( force );

			}

		},

		toJSON: function ( meta ) {

			// meta is '' when called from JSON.stringify
			var isRootObject = ( meta === undefined || meta === '' );

			var output = {};

			// meta is a hash used to collect geometries, materials.
			// not providing it implies that this is the root object
			// being serialized.
			if ( isRootObject ) {

				// initialize meta obj
				meta = {
					geometries: {},
					materials: {},
					textures: {},
					images: {}
				};

				output.metadata = {
					version: 4.5,
					type: 'Object',
					generator: 'Object3D.toJSON'
				};

			}

			// standard Object3D serialization

			var object = {};

			object.uuid = this.uuid;
			object.type = this.type;

			if ( this.name !== '' ) object.name = this.name;
			if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;
			if ( this.castShadow === true ) object.castShadow = true;
			if ( this.receiveShadow === true ) object.receiveShadow = true;
			if ( this.visible === false ) object.visible = false;

			object.matrix = this.matrix.toArray();

			//

			function serialize( library, element ) {

				if ( library[ element.uuid ] === undefined ) {

					library[ element.uuid ] = element.toJSON( meta );

				}

				return element.uuid;

			}

			if ( this.geometry !== undefined ) {

				object.geometry = serialize( meta.geometries, this.geometry );

			}

			if ( this.material !== undefined ) {

				if ( Array.isArray( this.material ) ) {

					var uuids = [];

					for ( var i = 0, l = this.material.length; i < l; i ++ ) {

						uuids.push( serialize( meta.materials, this.material[ i ] ) );

					}

					object.material = uuids;

				} else {

					object.material = serialize( meta.materials, this.material );

				}

			}

			//

			if ( this.children.length > 0 ) {

				object.children = [];

				for ( var i = 0; i < this.children.length; i ++ ) {

					object.children.push( this.children[ i ].toJSON( meta ).object );

				}

			}

			if ( isRootObject ) {

				var geometries = extractFromCache( meta.geometries );
				var materials = extractFromCache( meta.materials );
				var textures = extractFromCache( meta.textures );
				var images = extractFromCache( meta.images );

				if ( geometries.length > 0 ) output.geometries = geometries;
				if ( materials.length > 0 ) output.materials = materials;
				if ( textures.length > 0 ) output.textures = textures;
				if ( images.length > 0 ) output.images = images;

			}

			output.object = object;

			return output;

			// extract data from the cache hash
			// remove metadata on each item
			// and return as array
			function extractFromCache( cache ) {

				var values = [];
				for ( var key in cache ) {

					var data = cache[ key ];
					delete data.metadata;
					values.push( data );

				}
				return values;

			}

		},

		clone: function ( recursive ) {

			return new this.constructor().copy( this, recursive );

		},

		copy: function ( source, recursive ) {

			if ( recursive === undefined ) recursive = true;

			this.name = source.name;

			this.up.copy( source.up );

			this.position.copy( source.position );
			this.quaternion.copy( source.quaternion );
			this.scale.copy( source.scale );

			this.matrix.copy( source.matrix );
			this.matrixWorld.copy( source.matrixWorld );

			this.matrixAutoUpdate = source.matrixAutoUpdate;
			this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;

			this.layers.mask = source.layers.mask;
			this.visible = source.visible;

			this.castShadow = source.castShadow;
			this.receiveShadow = source.receiveShadow;

			this.frustumCulled = source.frustumCulled;
			this.renderOrder = source.renderOrder;

			this.userData = JSON.parse( JSON.stringify( source.userData ) );

			if ( recursive === true ) {

				for ( var i = 0; i < source.children.length; i ++ ) {

					var child = source.children[ i ];
					this.add( child.clone() );

				}

			}

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author WestLangley / http://github.com/WestLangley
	*/

	function Camera() {

		Object3D.call( this );

		this.type = 'Camera';

		this.matrixWorldInverse = new Matrix4();
		this.projectionMatrix = new Matrix4();

	}

	Camera.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Camera,

		isCamera: true,

		copy: function ( source, recursive ) {

			Object3D.prototype.copy.call( this, source, recursive );

			this.matrixWorldInverse.copy( source.matrixWorldInverse );
			this.projectionMatrix.copy( source.projectionMatrix );

			return this;

		},

		getWorldDirection: function () {

			var quaternion = new Quaternion();

			return function getWorldDirection( optionalTarget ) {

				var result = optionalTarget || new Vector3();

				this.getWorldQuaternion( quaternion );

				return result.set( 0, 0, - 1 ).applyQuaternion( quaternion );

			};

		}(),

		updateMatrixWorld: function ( force ) {

			Object3D.prototype.updateMatrixWorld.call( this, force );

			this.matrixWorldInverse.getInverse( this.matrixWorld );

		},

		clone: function () {

			return new this.constructor().copy( this );

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author arose / http://github.com/arose
	 */

	function OrthographicCamera( left, right, top, bottom, near, far ) {

		Camera.call( this );

		this.type = 'OrthographicCamera';

		this.zoom = 1;
		this.view = null;

		this.left = left;
		this.right = right;
		this.top = top;
		this.bottom = bottom;

		this.near = ( near !== undefined ) ? near : 0.1;
		this.far = ( far !== undefined ) ? far : 2000;

		this.updateProjectionMatrix();

	}

	OrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), {

		constructor: OrthographicCamera,

		isOrthographicCamera: true,

		copy: function ( source, recursive ) {

			Camera.prototype.copy.call( this, source, recursive );

			this.left = source.left;
			this.right = source.right;
			this.top = source.top;
			this.bottom = source.bottom;
			this.near = source.near;
			this.far = source.far;

			this.zoom = source.zoom;
			this.view = source.view === null ? null : Object.assign( {}, source.view );

			return this;

		},

		setViewOffset: function( fullWidth, fullHeight, x, y, width, height ) {

			this.view = {
				fullWidth: fullWidth,
				fullHeight: fullHeight,
				offsetX: x,
				offsetY: y,
				width: width,
				height: height
			};

			this.updateProjectionMatrix();

		},

		clearViewOffset: function() {

			this.view = null;
			this.updateProjectionMatrix();

		},

		updateProjectionMatrix: function () {

			var dx = ( this.right - this.left ) / ( 2 * this.zoom );
			var dy = ( this.top - this.bottom ) / ( 2 * this.zoom );
			var cx = ( this.right + this.left ) / 2;
			var cy = ( this.top + this.bottom ) / 2;

			var left = cx - dx;
			var right = cx + dx;
			var top = cy + dy;
			var bottom = cy - dy;

			if ( this.view !== null ) {

				var zoomW = this.zoom / ( this.view.width / this.view.fullWidth );
				var zoomH = this.zoom / ( this.view.height / this.view.fullHeight );
				var scaleW = ( this.right - this.left ) / this.view.width;
				var scaleH = ( this.top - this.bottom ) / this.view.height;

				left += scaleW * ( this.view.offsetX / zoomW );
				right = left + scaleW * ( this.view.width / zoomW );
				top -= scaleH * ( this.view.offsetY / zoomH );
				bottom = top - scaleH * ( this.view.height / zoomH );

			}

			this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );

		},

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			data.object.zoom = this.zoom;
			data.object.left = this.left;
			data.object.right = this.right;
			data.object.top = this.top;
			data.object.bottom = this.bottom;
			data.object.near = this.near;
			data.object.far = this.far;

			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );

			return data;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author greggman / http://games.greggman.com/
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * @author tschw
	 */

	function PerspectiveCamera( fov, aspect, near, far ) {

		Camera.call( this );

		this.type = 'PerspectiveCamera';

		this.fov = fov !== undefined ? fov : 50;
		this.zoom = 1;

		this.near = near !== undefined ? near : 0.1;
		this.far = far !== undefined ? far : 2000;
		this.focus = 10;

		this.aspect = aspect !== undefined ? aspect : 1;
		this.view = null;

		this.filmGauge = 35;	// width of the film (default in millimeters)
		this.filmOffset = 0;	// horizontal film offset (same unit as gauge)

		this.updateProjectionMatrix();

	}

	PerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), {

		constructor: PerspectiveCamera,

		isPerspectiveCamera: true,

		copy: function ( source, recursive ) {

			Camera.prototype.copy.call( this, source, recursive );

			this.fov = source.fov;
			this.zoom = source.zoom;

			this.near = source.near;
			this.far = source.far;
			this.focus = source.focus;

			this.aspect = source.aspect;
			this.view = source.view === null ? null : Object.assign( {}, source.view );

			this.filmGauge = source.filmGauge;
			this.filmOffset = source.filmOffset;

			return this;

		},

		/**
		 * Sets the FOV by focal length in respect to the current .filmGauge.
		 *
		 * The default film gauge is 35, so that the focal length can be specified for
		 * a 35mm (full frame) camera.
		 *
		 * Values for focal length and film gauge must have the same unit.
		 */
		setFocalLength: function ( focalLength ) {

			// see http://www.bobatkins.com/photography/technical/field_of_view.html
			var vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;

			this.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope );
			this.updateProjectionMatrix();

		},

		/**
		 * Calculates the focal length from the current .fov and .filmGauge.
		 */
		getFocalLength: function () {

			var vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov );

			return 0.5 * this.getFilmHeight() / vExtentSlope;

		},

		getEffectiveFOV: function () {

			return _Math.RAD2DEG * 2 * Math.atan(
					Math.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom );

		},

		getFilmWidth: function () {

			// film not completely covered in portrait format (aspect < 1)
			return this.filmGauge * Math.min( this.aspect, 1 );

		},

		getFilmHeight: function () {

			// film not completely covered in landscape format (aspect > 1)
			return this.filmGauge / Math.max( this.aspect, 1 );

		},

		/**
		 * Sets an offset in a larger frustum. This is useful for multi-window or
		 * multi-monitor/multi-machine setups.
		 *
		 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
		 * the monitors are in grid like this
		 *
		 *   +---+---+---+
		 *   | A | B | C |
		 *   +---+---+---+
		 *   | D | E | F |
		 *   +---+---+---+
		 *
		 * then for each monitor you would call it like this
		 *
		 *   var w = 1920;
		 *   var h = 1080;
		 *   var fullWidth = w * 3;
		 *   var fullHeight = h * 2;
		 *
		 *   --A--
		 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
		 *   --B--
		 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
		 *   --C--
		 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
		 *   --D--
		 *   camera.setOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
		 *   --E--
		 *   camera.setOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
		 *   --F--
		 *   camera.setOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
		 *
		 *   Note there is no reason monitors have to be the same size or in a grid.
		 */
		setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {

			this.aspect = fullWidth / fullHeight;

			this.view = {
				fullWidth: fullWidth,
				fullHeight: fullHeight,
				offsetX: x,
				offsetY: y,
				width: width,
				height: height
			};

			this.updateProjectionMatrix();

		},

		clearViewOffset: function () {

			this.view = null;
			this.updateProjectionMatrix();

		},

		updateProjectionMatrix: function () {

			var near = this.near,
				top = near * Math.tan(
						_Math.DEG2RAD * 0.5 * this.fov ) / this.zoom,
				height = 2 * top,
				width = this.aspect * height,
				left = - 0.5 * width,
				view = this.view;

			if ( view !== null ) {

				var fullWidth = view.fullWidth,
					fullHeight = view.fullHeight;

				left += view.offsetX * width / fullWidth;
				top -= view.offsetY * height / fullHeight;
				width *= view.width / fullWidth;
				height *= view.height / fullHeight;

			}

			var skew = this.filmOffset;
			if ( skew !== 0 ) left += near * skew / this.getFilmWidth();

			this.projectionMatrix.makePerspective( left, left + width, top, top - height, near, this.far );

		},

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			data.object.fov = this.fov;
			data.object.zoom = this.zoom;

			data.object.near = this.near;
			data.object.far = this.far;
			data.object.focus = this.focus;

			data.object.aspect = this.aspect;

			if ( this.view !== null ) data.object.view = Object.assign( {}, this.view );

			data.object.filmGauge = this.filmGauge;
			data.object.filmOffset = this.filmOffset;

			return data;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Face3( a, b, c, normal, color, materialIndex ) {

		this.a = a;
		this.b = b;
		this.c = c;

		this.normal = ( normal && normal.isVector3 ) ? normal : new Vector3();
		this.vertexNormals = Array.isArray( normal ) ? normal : [];

		this.color = ( color && color.isColor ) ? color : new Color();
		this.vertexColors = Array.isArray( color ) ? color : [];

		this.materialIndex = materialIndex !== undefined ? materialIndex : 0;

	}

	Object.assign( Face3.prototype, {

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( source ) {

			this.a = source.a;
			this.b = source.b;
			this.c = source.c;

			this.normal.copy( source.normal );
			this.color.copy( source.color );

			this.materialIndex = source.materialIndex;

			for ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {

				this.vertexNormals[ i ] = source.vertexNormals[ i ].clone();

			}

			for ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {

				this.vertexColors[ i ] = source.vertexColors[ i ].clone();

			}

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author kile / http://kile.stravaganza.org/
	 * @author alteredq / http://alteredqualia.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * @author bhouston / http://clara.io
	 */

	var count = 0;
	function GeometryIdCount() { return count++; }

	function Geometry() {

		Object.defineProperty( this, 'id', { value: GeometryIdCount() } );

		this.uuid = _Math.generateUUID();

		this.name = '';
		this.type = 'Geometry';

		this.vertices = [];
		this.colors = [];
		this.faces = [];
		this.faceVertexUvs = [[]];

		this.morphTargets = [];
		this.morphNormals = [];

		this.skinWeights = [];
		this.skinIndices = [];

		this.lineDistances = [];

		this.boundingBox = null;
		this.boundingSphere = null;

		// update flags

		this.elementsNeedUpdate = false;
		this.verticesNeedUpdate = false;
		this.uvsNeedUpdate = false;
		this.normalsNeedUpdate = false;
		this.colorsNeedUpdate = false;
		this.lineDistancesNeedUpdate = false;
		this.groupsNeedUpdate = false;

	}

	Object.assign( Geometry.prototype, EventDispatcher.prototype, {

		isGeometry: true,

		applyMatrix: function ( matrix ) {

			var normalMatrix = new Matrix3().getNormalMatrix( matrix );

			for ( var i = 0, il = this.vertices.length; i < il; i ++ ) {

				var vertex = this.vertices[ i ];
				vertex.applyMatrix4( matrix );

			}

			for ( var i = 0, il = this.faces.length; i < il; i ++ ) {

				var face = this.faces[ i ];
				face.normal.applyMatrix3( normalMatrix ).normalize();

				for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {

					face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();

				}

			}

			if ( this.boundingBox !== null ) {

				this.computeBoundingBox();

			}

			if ( this.boundingSphere !== null ) {

				this.computeBoundingSphere();

			}

			this.verticesNeedUpdate = true;
			this.normalsNeedUpdate = true;

			return this;

		},

		rotateX: function () {

			// rotate geometry around world x-axis

			var m1 = new Matrix4();

			return function rotateX( angle ) {

				m1.makeRotationX( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		rotateY: function () {

			// rotate geometry around world y-axis

			var m1 = new Matrix4();

			return function rotateY( angle ) {

				m1.makeRotationY( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		rotateZ: function () {

			// rotate geometry around world z-axis

			var m1 = new Matrix4();

			return function rotateZ( angle ) {

				m1.makeRotationZ( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		translate: function () {

			// translate geometry

			var m1 = new Matrix4();

			return function translate( x, y, z ) {

				m1.makeTranslation( x, y, z );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		scale: function () {

			// scale geometry

			var m1 = new Matrix4();

			return function scale( x, y, z ) {

				m1.makeScale( x, y, z );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		lookAt: function () {

			var obj = new Object3D();

			return function lookAt( vector ) {

				obj.lookAt( vector );

				obj.updateMatrix();

				this.applyMatrix( obj.matrix );

			};

		}(),

		fromBufferGeometry: function ( geometry ) {

			var scope = this;

			var indices = geometry.index !== null ? geometry.index.array : undefined;
			var attributes = geometry.attributes;

			var positions = attributes.position.array;
			var normals = attributes.normal !== undefined ? attributes.normal.array : undefined;
			var colors = attributes.color !== undefined ? attributes.color.array : undefined;
			var uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;
			var uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;

			if ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];

			var tempNormals = [];
			var tempUVs = [];
			var tempUVs2 = [];

			for ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) {

				scope.vertices.push( new Vector3( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ) );

				if ( normals !== undefined ) {

					tempNormals.push( new Vector3( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ) );

				}

				if ( colors !== undefined ) {

					scope.colors.push( new Color( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] ) );

				}

				if ( uvs !== undefined ) {

					tempUVs.push( new Vector2( uvs[ j ], uvs[ j + 1 ] ) );

				}

				if ( uvs2 !== undefined ) {

					tempUVs2.push( new Vector2( uvs2[ j ], uvs2[ j + 1 ] ) );

				}

			}

			function addFace( a, b, c, materialIndex ) {

				var vertexNormals = normals !== undefined ? [ tempNormals[ a ].clone(), tempNormals[ b ].clone(), tempNormals[ c ].clone() ] : [];
				var vertexColors = colors !== undefined ? [ scope.colors[ a ].clone(), scope.colors[ b ].clone(), scope.colors[ c ].clone() ] : [];

				var face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex );

				scope.faces.push( face );

				if ( uvs !== undefined ) {

					scope.faceVertexUvs[ 0 ].push( [ tempUVs[ a ].clone(), tempUVs[ b ].clone(), tempUVs[ c ].clone() ] );

				}

				if ( uvs2 !== undefined ) {

					scope.faceVertexUvs[ 1 ].push( [ tempUVs2[ a ].clone(), tempUVs2[ b ].clone(), tempUVs2[ c ].clone() ] );

				}

			}

			var groups = geometry.groups;

			if ( groups.length > 0 ) {

				for ( var i = 0; i < groups.length; i ++ ) {

					var group = groups[ i ];

					var start = group.start;
					var count = group.count;

					for ( var j = start, jl = start + count; j < jl; j += 3 ) {

						if ( indices !== undefined ) {

							addFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex );

						} else {

							addFace( j, j + 1, j + 2, group.materialIndex );

						}

					}

				}

			} else {

				if ( indices !== undefined ) {

					for ( var i = 0; i < indices.length; i += 3 ) {

						addFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );

					}

				} else {

					for ( var i = 0; i < positions.length / 3; i += 3 ) {

						addFace( i, i + 1, i + 2 );

					}

				}

			}

			this.computeFaceNormals();

			if ( geometry.boundingBox !== null ) {

				this.boundingBox = geometry.boundingBox.clone();

			}

			if ( geometry.boundingSphere !== null ) {

				this.boundingSphere = geometry.boundingSphere.clone();

			}

			return this;

		},

		center: function () {

			this.computeBoundingBox();

			var offset = this.boundingBox.getCenter().negate();

			this.translate( offset.x, offset.y, offset.z );

			return offset;

		},

		normalize: function () {

			this.computeBoundingSphere();

			var center = this.boundingSphere.center;
			var radius = this.boundingSphere.radius;

			var s = radius === 0 ? 1 : 1.0 / radius;

			var matrix = new Matrix4();
			matrix.set(
				s, 0, 0, - s * center.x,
				0, s, 0, - s * center.y,
				0, 0, s, - s * center.z,
				0, 0, 0, 1
			);

			this.applyMatrix( matrix );

			return this;

		},

		computeFaceNormals: function () {

			var cb = new Vector3(), ab = new Vector3();

			for ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {

				var face = this.faces[ f ];

				var vA = this.vertices[ face.a ];
				var vB = this.vertices[ face.b ];
				var vC = this.vertices[ face.c ];

				cb.subVectors( vC, vB );
				ab.subVectors( vA, vB );
				cb.cross( ab );

				cb.normalize();

				face.normal.copy( cb );

			}

		},

		computeVertexNormals: function ( areaWeighted ) {

			if ( areaWeighted === undefined ) areaWeighted = true;

			var v, vl, f, fl, face, vertices;

			vertices = new Array( this.vertices.length );

			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {

				vertices[ v ] = new Vector3();

			}

			if ( areaWeighted ) {

				// vertex normals weighted by triangle areas
				// http://www.iquilezles.org/www/articles/normals/normals.htm

				var vA, vB, vC;
				var cb = new Vector3(), ab = new Vector3();

				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

					face = this.faces[ f ];

					vA = this.vertices[ face.a ];
					vB = this.vertices[ face.b ];
					vC = this.vertices[ face.c ];

					cb.subVectors( vC, vB );
					ab.subVectors( vA, vB );
					cb.cross( ab );

					vertices[ face.a ].add( cb );
					vertices[ face.b ].add( cb );
					vertices[ face.c ].add( cb );

				}

			} else {

				this.computeFaceNormals();

				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

					face = this.faces[ f ];

					vertices[ face.a ].add( face.normal );
					vertices[ face.b ].add( face.normal );
					vertices[ face.c ].add( face.normal );

				}

			}

			for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {

				vertices[ v ].normalize();

			}

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				var vertexNormals = face.vertexNormals;

				if ( vertexNormals.length === 3 ) {

					vertexNormals[ 0 ].copy( vertices[ face.a ] );
					vertexNormals[ 1 ].copy( vertices[ face.b ] );
					vertexNormals[ 2 ].copy( vertices[ face.c ] );

				} else {

					vertexNormals[ 0 ] = vertices[ face.a ].clone();
					vertexNormals[ 1 ] = vertices[ face.b ].clone();
					vertexNormals[ 2 ] = vertices[ face.c ].clone();

				}

			}

			if ( this.faces.length > 0 ) {

				this.normalsNeedUpdate = true;

			}

		},

		computeFlatVertexNormals: function () {

			var f, fl, face;

			this.computeFaceNormals();

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				var vertexNormals = face.vertexNormals;

				if ( vertexNormals.length === 3 ) {

					vertexNormals[ 0 ].copy( face.normal );
					vertexNormals[ 1 ].copy( face.normal );
					vertexNormals[ 2 ].copy( face.normal );

				} else {

					vertexNormals[ 0 ] = face.normal.clone();
					vertexNormals[ 1 ] = face.normal.clone();
					vertexNormals[ 2 ] = face.normal.clone();

				}

			}

			if ( this.faces.length > 0 ) {

				this.normalsNeedUpdate = true;

			}

		},

		computeMorphNormals: function () {

			var i, il, f, fl, face;

			// save original normals
			// - create temp variables on first access
			//   otherwise just copy (for faster repeated calls)

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				if ( ! face.__originalFaceNormal ) {

					face.__originalFaceNormal = face.normal.clone();

				} else {

					face.__originalFaceNormal.copy( face.normal );

				}

				if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];

				for ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {

					if ( ! face.__originalVertexNormals[ i ] ) {

						face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();

					} else {

						face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );

					}

				}

			}

			// use temp geometry to compute face and vertex normals for each morph

			var tmpGeo = new Geometry();
			tmpGeo.faces = this.faces;

			for ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {

				// create on first access

				if ( ! this.morphNormals[ i ] ) {

					this.morphNormals[ i ] = {};
					this.morphNormals[ i ].faceNormals = [];
					this.morphNormals[ i ].vertexNormals = [];

					var dstNormalsFace = this.morphNormals[ i ].faceNormals;
					var dstNormalsVertex = this.morphNormals[ i ].vertexNormals;

					var faceNormal, vertexNormals;

					for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

						faceNormal = new Vector3();
						vertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() };

						dstNormalsFace.push( faceNormal );
						dstNormalsVertex.push( vertexNormals );

					}

				}

				var morphNormals = this.morphNormals[ i ];

				// set vertices to morph target

				tmpGeo.vertices = this.morphTargets[ i ].vertices;

				// compute morph normals

				tmpGeo.computeFaceNormals();
				tmpGeo.computeVertexNormals();

				// store morph normals

				var faceNormal, vertexNormals;

				for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

					face = this.faces[ f ];

					faceNormal = morphNormals.faceNormals[ f ];
					vertexNormals = morphNormals.vertexNormals[ f ];

					faceNormal.copy( face.normal );

					vertexNormals.a.copy( face.vertexNormals[ 0 ] );
					vertexNormals.b.copy( face.vertexNormals[ 1 ] );
					vertexNormals.c.copy( face.vertexNormals[ 2 ] );

				}

			}

			// restore original normals

			for ( f = 0, fl = this.faces.length; f < fl; f ++ ) {

				face = this.faces[ f ];

				face.normal = face.__originalFaceNormal;
				face.vertexNormals = face.__originalVertexNormals;

			}

		},

		computeLineDistances: function () {

			var d = 0;
			var vertices = this.vertices;

			for ( var i = 0, il = vertices.length; i < il; i ++ ) {

				if ( i > 0 ) {

					d += vertices[ i ].distanceTo( vertices[ i - 1 ] );

				}

				this.lineDistances[ i ] = d;

			}

		},

		computeBoundingBox: function () {

			if ( this.boundingBox === null ) {

				this.boundingBox = new Box3();

			}

			this.boundingBox.setFromPoints( this.vertices );

		},

		computeBoundingSphere: function () {

			if ( this.boundingSphere === null ) {

				this.boundingSphere = new Sphere();

			}

			this.boundingSphere.setFromPoints( this.vertices );

		},

		merge: function ( geometry, matrix, materialIndexOffset ) {

			if ( ! ( geometry && geometry.isGeometry ) ) {

				console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );
				return;

			}

			var normalMatrix,
				vertexOffset = this.vertices.length,
				vertices1 = this.vertices,
				vertices2 = geometry.vertices,
				faces1 = this.faces,
				faces2 = geometry.faces,
				uvs1 = this.faceVertexUvs[ 0 ],
				uvs2 = geometry.faceVertexUvs[ 0 ],
				colors1 = this.colors,
				colors2 = geometry.colors;

			if ( materialIndexOffset === undefined ) materialIndexOffset = 0;

			if ( matrix !== undefined ) {

				normalMatrix = new Matrix3().getNormalMatrix( matrix );

			}

			// vertices

			for ( var i = 0, il = vertices2.length; i < il; i ++ ) {

				var vertex = vertices2[ i ];

				var vertexCopy = vertex.clone();

				if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );

				vertices1.push( vertexCopy );

			}

			// colors

			for ( var i = 0, il = colors2.length; i < il; i ++ ) {

				colors1.push( colors2[ i ].clone() );

			}

			// faces

			for ( i = 0, il = faces2.length; i < il; i ++ ) {

				var face = faces2[ i ], faceCopy, normal, color,
					faceVertexNormals = face.vertexNormals,
					faceVertexColors = face.vertexColors;

				faceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );
				faceCopy.normal.copy( face.normal );

				if ( normalMatrix !== undefined ) {

					faceCopy.normal.applyMatrix3( normalMatrix ).normalize();

				}

				for ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {

					normal = faceVertexNormals[ j ].clone();

					if ( normalMatrix !== undefined ) {

						normal.applyMatrix3( normalMatrix ).normalize();

					}

					faceCopy.vertexNormals.push( normal );

				}

				faceCopy.color.copy( face.color );

				for ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {

					color = faceVertexColors[ j ];
					faceCopy.vertexColors.push( color.clone() );

				}

				faceCopy.materialIndex = face.materialIndex + materialIndexOffset;

				faces1.push( faceCopy );

			}

			// uvs

			for ( i = 0, il = uvs2.length; i < il; i ++ ) {

				var uv = uvs2[ i ], uvCopy = [];

				if ( uv === undefined ) {

					continue;

				}

				for ( var j = 0, jl = uv.length; j < jl; j ++ ) {

					uvCopy.push( uv[ j ].clone() );

				}

				uvs1.push( uvCopy );

			}

		},

		mergeMesh: function ( mesh ) {

			if ( ! ( mesh && mesh.isMesh ) ) {

				console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );
				return;

			}

			mesh.matrixAutoUpdate && mesh.updateMatrix();

			this.merge( mesh.geometry, mesh.matrix );

		},

		/*
		 * Checks for duplicate vertices with hashmap.
		 * Duplicated vertices are removed
		 * and faces' vertices are updated.
		 */

		mergeVertices: function () {

			var verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)
			var unique = [], changes = [];

			var v, key;
			var precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001
			var precision = Math.pow( 10, precisionPoints );
			var i, il, face;
			var indices, j, jl;

			for ( i = 0, il = this.vertices.length; i < il; i ++ ) {

				v = this.vertices[ i ];
				key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );

				if ( verticesMap[ key ] === undefined ) {

					verticesMap[ key ] = i;
					unique.push( this.vertices[ i ] );
					changes[ i ] = unique.length - 1;

				} else {

					//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
					changes[ i ] = changes[ verticesMap[ key ] ];

				}

			}


			// if faces are completely degenerate after merging vertices, we
			// have to remove them from the geometry.
			var faceIndicesToRemove = [];

			for ( i = 0, il = this.faces.length; i < il; i ++ ) {

				face = this.faces[ i ];

				face.a = changes[ face.a ];
				face.b = changes[ face.b ];
				face.c = changes[ face.c ];

				indices = [ face.a, face.b, face.c ];

				// if any duplicate vertices are found in a Face3
				// we have to remove the face as nothing can be saved
				for ( var n = 0; n < 3; n ++ ) {

					if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {

						faceIndicesToRemove.push( i );
						break;

					}

				}

			}

			for ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {

				var idx = faceIndicesToRemove[ i ];

				this.faces.splice( idx, 1 );

				for ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {

					this.faceVertexUvs[ j ].splice( idx, 1 );

				}

			}

			// Use unique set of vertices

			var diff = this.vertices.length - unique.length;
			this.vertices = unique;
			return diff;

		},

		sortFacesByMaterialIndex: function () {

			var faces = this.faces;
			var length = faces.length;

			// tag faces

			for ( var i = 0; i < length; i ++ ) {

				faces[ i ]._id = i;

			}

			// sort faces

			function materialIndexSort( a, b ) {

				return a.materialIndex - b.materialIndex;

			}

			faces.sort( materialIndexSort );

			// sort uvs

			var uvs1 = this.faceVertexUvs[ 0 ];
			var uvs2 = this.faceVertexUvs[ 1 ];

			var newUvs1, newUvs2;

			if ( uvs1 && uvs1.length === length ) newUvs1 = [];
			if ( uvs2 && uvs2.length === length ) newUvs2 = [];

			for ( var i = 0; i < length; i ++ ) {

				var id = faces[ i ]._id;

				if ( newUvs1 ) newUvs1.push( uvs1[ id ] );
				if ( newUvs2 ) newUvs2.push( uvs2[ id ] );

			}

			if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;
			if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;

		},

		toJSON: function () {

			var data = {
				metadata: {
					version: 4.5,
					type: 'Geometry',
					generator: 'Geometry.toJSON'
				}
			};

			// standard Geometry serialization

			data.uuid = this.uuid;
			data.type = this.type;
			if ( this.name !== '' ) data.name = this.name;

			if ( this.parameters !== undefined ) {

				var parameters = this.parameters;

				for ( var key in parameters ) {

					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];

				}

				return data;

			}

			var vertices = [];

			for ( var i = 0; i < this.vertices.length; i ++ ) {

				var vertex = this.vertices[ i ];
				vertices.push( vertex.x, vertex.y, vertex.z );

			}

			var faces = [];
			var normals = [];
			var normalsHash = {};
			var colors = [];
			var colorsHash = {};
			var uvs = [];
			var uvsHash = {};

			for ( var i = 0; i < this.faces.length; i ++ ) {

				var face = this.faces[ i ];

				var hasMaterial = true;
				var hasFaceUv = false; // deprecated
				var hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;
				var hasFaceNormal = face.normal.length() > 0;
				var hasFaceVertexNormal = face.vertexNormals.length > 0;
				var hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;
				var hasFaceVertexColor = face.vertexColors.length > 0;

				var faceType = 0;

				faceType = setBit( faceType, 0, 0 ); // isQuad
				faceType = setBit( faceType, 1, hasMaterial );
				faceType = setBit( faceType, 2, hasFaceUv );
				faceType = setBit( faceType, 3, hasFaceVertexUv );
				faceType = setBit( faceType, 4, hasFaceNormal );
				faceType = setBit( faceType, 5, hasFaceVertexNormal );
				faceType = setBit( faceType, 6, hasFaceColor );
				faceType = setBit( faceType, 7, hasFaceVertexColor );

				faces.push( faceType );
				faces.push( face.a, face.b, face.c );
				faces.push( face.materialIndex );

				if ( hasFaceVertexUv ) {

					var faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];

					faces.push(
						getUvIndex( faceVertexUvs[ 0 ] ),
						getUvIndex( faceVertexUvs[ 1 ] ),
						getUvIndex( faceVertexUvs[ 2 ] )
					);

				}

				if ( hasFaceNormal ) {

					faces.push( getNormalIndex( face.normal ) );

				}

				if ( hasFaceVertexNormal ) {

					var vertexNormals = face.vertexNormals;

					faces.push(
						getNormalIndex( vertexNormals[ 0 ] ),
						getNormalIndex( vertexNormals[ 1 ] ),
						getNormalIndex( vertexNormals[ 2 ] )
					);

				}

				if ( hasFaceColor ) {

					faces.push( getColorIndex( face.color ) );

				}

				if ( hasFaceVertexColor ) {

					var vertexColors = face.vertexColors;

					faces.push(
						getColorIndex( vertexColors[ 0 ] ),
						getColorIndex( vertexColors[ 1 ] ),
						getColorIndex( vertexColors[ 2 ] )
					);

				}

			}

			function setBit( value, position, enabled ) {

				return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );

			}

			function getNormalIndex( normal ) {

				var hash = normal.x.toString() + normal.y.toString() + normal.z.toString();

				if ( normalsHash[ hash ] !== undefined ) {

					return normalsHash[ hash ];

				}

				normalsHash[ hash ] = normals.length / 3;
				normals.push( normal.x, normal.y, normal.z );

				return normalsHash[ hash ];

			}

			function getColorIndex( color ) {

				var hash = color.r.toString() + color.g.toString() + color.b.toString();

				if ( colorsHash[ hash ] !== undefined ) {

					return colorsHash[ hash ];

				}

				colorsHash[ hash ] = colors.length;
				colors.push( color.getHex() );

				return colorsHash[ hash ];

			}

			function getUvIndex( uv ) {

				var hash = uv.x.toString() + uv.y.toString();

				if ( uvsHash[ hash ] !== undefined ) {

					return uvsHash[ hash ];

				}

				uvsHash[ hash ] = uvs.length / 2;
				uvs.push( uv.x, uv.y );

				return uvsHash[ hash ];

			}

			data.data = {};

			data.data.vertices = vertices;
			data.data.normals = normals;
			if ( colors.length > 0 ) data.data.colors = colors;
			if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility
			data.data.faces = faces;

			return data;

		},

		clone: function () {

			/*
			 // Handle primitives

			 var parameters = this.parameters;

			 if ( parameters !== undefined ) {

			 var values = [];

			 for ( var key in parameters ) {

			 values.push( parameters[ key ] );

			 }

			 var geometry = Object.create( this.constructor.prototype );
			 this.constructor.apply( geometry, values );
			 return geometry;

			 }

			 return new this.constructor().copy( this );
			 */

			return new Geometry().copy( this );

		},

		copy: function ( source ) {

			var i, il, j, jl, k, kl;

			// reset

			this.vertices = [];
			this.colors = [];
			this.faces = [];
			this.faceVertexUvs = [[]];
			this.morphTargets = [];
			this.morphNormals = [];
			this.skinWeights = [];
			this.skinIndices = [];
			this.lineDistances = [];
			this.boundingBox = null;
			this.boundingSphere = null;

			// name

			this.name = source.name;

			// vertices

			var vertices = source.vertices;

			for ( i = 0, il = vertices.length; i < il; i ++ ) {

				this.vertices.push( vertices[ i ].clone() );

			}

			// colors

			var colors = source.colors;

			for ( i = 0, il = colors.length; i < il; i ++ ) {

				this.colors.push( colors[ i ].clone() );

			}

			// faces

			var faces = source.faces;

			for ( i = 0, il = faces.length; i < il; i ++ ) {

				this.faces.push( faces[ i ].clone() );

			}

			// face vertex uvs

			for ( i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {

				var faceVertexUvs = source.faceVertexUvs[ i ];

				if ( this.faceVertexUvs[ i ] === undefined ) {

					this.faceVertexUvs[ i ] = [];

				}

				for ( j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {

					var uvs = faceVertexUvs[ j ], uvsCopy = [];

					for ( k = 0, kl = uvs.length; k < kl; k ++ ) {

						var uv = uvs[ k ];

						uvsCopy.push( uv.clone() );

					}

					this.faceVertexUvs[ i ].push( uvsCopy );

				}

			}

			// morph targets

			var morphTargets = source.morphTargets;

			for ( i = 0, il = morphTargets.length; i < il; i ++ ) {

				var morphTarget = {};
				morphTarget.name = morphTargets[ i ].name;

				// vertices

				if ( morphTargets[ i ].vertices !== undefined ) {

					morphTarget.vertices = [];

					for ( j = 0, jl = morphTargets[ i ].vertices.length; j < jl; j ++ ) {

						morphTarget.vertices.push( morphTargets[ i ].vertices[ j ].clone() );

					}

				}

				// normals

				if ( morphTargets[ i ].normals !== undefined ) {

					morphTarget.normals = [];

					for ( j = 0, jl = morphTargets[ i ].normals.length; j < jl; j ++ ) {

						morphTarget.normals.push( morphTargets[ i ].normals[ j ].clone() );

					}

				}

				this.morphTargets.push( morphTarget );

			}

			// morph normals

			var morphNormals = source.morphNormals;

			for ( i = 0, il = morphNormals.length; i < il; i ++ ) {

				var morphNormal = {};

				// vertex normals

				if ( morphNormals[ i ].vertexNormals !== undefined ) {

					morphNormal.vertexNormals = [];

					for ( j = 0, jl = morphNormals[ i ].vertexNormals.length; j < jl; j ++ ) {

						var srcVertexNormal = morphNormals[ i ].vertexNormals[ j ];
						var destVertexNormal = {};

						destVertexNormal.a = srcVertexNormal.a.clone();
						destVertexNormal.b = srcVertexNormal.b.clone();
						destVertexNormal.c = srcVertexNormal.c.clone();

						morphNormal.vertexNormals.push( destVertexNormal );

					}

				}

				// face normals

				if ( morphNormals[ i ].faceNormals !== undefined ) {

					morphNormal.faceNormals = [];

					for ( j = 0, jl = morphNormals[ i ].faceNormals.length; j < jl; j ++ ) {

						morphNormal.faceNormals.push( morphNormals[ i ].faceNormals[ j ].clone() );

					}

				}

				this.morphNormals.push( morphNormal );

			}

			// skin weights

			var skinWeights = source.skinWeights;

			for ( i = 0, il = skinWeights.length; i < il; i ++ ) {

				this.skinWeights.push( skinWeights[ i ].clone() );

			}

			// skin indices

			var skinIndices = source.skinIndices;

			for ( i = 0, il = skinIndices.length; i < il; i ++ ) {

				this.skinIndices.push( skinIndices[ i ].clone() );

			}

			// line distances

			var lineDistances = source.lineDistances;

			for ( i = 0, il = lineDistances.length; i < il; i ++ ) {

				this.lineDistances.push( lineDistances[ i ] );

			}

			// bounding box

			var boundingBox = source.boundingBox;

			if ( boundingBox !== null ) {

				this.boundingBox = boundingBox.clone();

			}

			// bounding sphere

			var boundingSphere = source.boundingSphere;

			if ( boundingSphere !== null ) {

				this.boundingSphere = boundingSphere.clone();

			}

			// update flags

			this.elementsNeedUpdate = source.elementsNeedUpdate;
			this.verticesNeedUpdate = source.verticesNeedUpdate;
			this.uvsNeedUpdate = source.uvsNeedUpdate;
			this.normalsNeedUpdate = source.normalsNeedUpdate;
			this.colorsNeedUpdate = source.colorsNeedUpdate;
			this.lineDistancesNeedUpdate = source.lineDistancesNeedUpdate;
			this.groupsNeedUpdate = source.groupsNeedUpdate;

			return this;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function BufferAttribute( array, itemSize, normalized ) {

		if ( Array.isArray( array ) ) {

			throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );

		}

		this.uuid = _Math.generateUUID();
		this.name = '';

		this.array = array;
		this.itemSize = itemSize;
		this.count = array !== undefined ? array.length / itemSize : 0;
		this.normalized = normalized === true;

		this.dynamic = false;
		this.updateRange = { offset: 0, count: - 1 };

		this.onUploadCallback = function () {};

		this.version = 0;

	}

	Object.defineProperty( BufferAttribute.prototype, 'needsUpdate', {

		set: function ( value ) {

			if ( value === true ) this.version ++;

		}

	} );

	Object.assign( BufferAttribute.prototype, {

		isBufferAttribute: true,

		setArray: function ( array ) {

			if ( Array.isArray( array ) ) {

				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );

			}

			this.count = array !== undefined ? array.length / this.itemSize : 0;
			this.array = array;

		},

		setDynamic: function ( value ) {

			this.dynamic = value;

			return this;

		},

		copy: function ( source ) {

			this.array = new source.array.constructor( source.array );
			this.itemSize = source.itemSize;
			this.count = source.count;
			this.normalized = source.normalized;

			this.dynamic = source.dynamic;

			return this;

		},

		copyAt: function ( index1, attribute, index2 ) {

			index1 *= this.itemSize;
			index2 *= attribute.itemSize;

			for ( var i = 0, l = this.itemSize; i < l; i ++ ) {

				this.array[ index1 + i ] = attribute.array[ index2 + i ];

			}

			return this;

		},

		copyArray: function ( array ) {

			this.array.set( array );

			return this;

		},

		copyColorsArray: function ( colors ) {

			var array = this.array, offset = 0;

			for ( var i = 0, l = colors.length; i < l; i ++ ) {

				var color = colors[ i ];

				if ( color === undefined ) {

					console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );
					color = new Color();

				}

				array[ offset ++ ] = color.r;
				array[ offset ++ ] = color.g;
				array[ offset ++ ] = color.b;

			}

			return this;

		},

		copyIndicesArray: function ( indices ) {

			var array = this.array, offset = 0;

			for ( var i = 0, l = indices.length; i < l; i ++ ) {

				var index = indices[ i ];

				array[ offset ++ ] = index.a;
				array[ offset ++ ] = index.b;
				array[ offset ++ ] = index.c;

			}

			return this;

		},

		copyVector2sArray: function ( vectors ) {

			var array = this.array, offset = 0;

			for ( var i = 0, l = vectors.length; i < l; i ++ ) {

				var vector = vectors[ i ];

				if ( vector === undefined ) {

					console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );
					vector = new Vector2();

				}

				array[ offset ++ ] = vector.x;
				array[ offset ++ ] = vector.y;

			}

			return this;

		},

		copyVector3sArray: function ( vectors ) {

			var array = this.array, offset = 0;

			for ( var i = 0, l = vectors.length; i < l; i ++ ) {

				var vector = vectors[ i ];

				if ( vector === undefined ) {

					console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );
					vector = new Vector3();

				}

				array[ offset ++ ] = vector.x;
				array[ offset ++ ] = vector.y;
				array[ offset ++ ] = vector.z;

			}

			return this;

		},

		copyVector4sArray: function ( vectors ) {

			var array = this.array, offset = 0;

			for ( var i = 0, l = vectors.length; i < l; i ++ ) {

				var vector = vectors[ i ];

				if ( vector === undefined ) {

					console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );
					vector = new Vector4();

				}

				array[ offset ++ ] = vector.x;
				array[ offset ++ ] = vector.y;
				array[ offset ++ ] = vector.z;
				array[ offset ++ ] = vector.w;

			}

			return this;

		},

		set: function ( value, offset ) {

			if ( offset === undefined ) offset = 0;

			this.array.set( value, offset );

			return this;

		},

		getX: function ( index ) {

			return this.array[ index * this.itemSize ];

		},

		setX: function ( index, x ) {

			this.array[ index * this.itemSize ] = x;

			return this;

		},

		getY: function ( index ) {

			return this.array[ index * this.itemSize + 1 ];

		},

		setY: function ( index, y ) {

			this.array[ index * this.itemSize + 1 ] = y;

			return this;

		},

		getZ: function ( index ) {

			return this.array[ index * this.itemSize + 2 ];

		},

		setZ: function ( index, z ) {

			this.array[ index * this.itemSize + 2 ] = z;

			return this;

		},

		getW: function ( index ) {

			return this.array[ index * this.itemSize + 3 ];

		},

		setW: function ( index, w ) {

			this.array[ index * this.itemSize + 3 ] = w;

			return this;

		},

		setXY: function ( index, x, y ) {

			index *= this.itemSize;

			this.array[ index + 0 ] = x;
			this.array[ index + 1 ] = y;

			return this;

		},

		setXYZ: function ( index, x, y, z ) {

			index *= this.itemSize;

			this.array[ index + 0 ] = x;
			this.array[ index + 1 ] = y;
			this.array[ index + 2 ] = z;

			return this;

		},

		setXYZW: function ( index, x, y, z, w ) {

			index *= this.itemSize;

			this.array[ index + 0 ] = x;
			this.array[ index + 1 ] = y;
			this.array[ index + 2 ] = z;
			this.array[ index + 3 ] = w;

			return this;

		},

		onUpload: function ( callback ) {

			this.onUploadCallback = callback;

			return this;

		},

		clone: function () {

			return new this.constructor( this.array, this.itemSize ).copy( this );

		}

	} );

	//

	function Int8BufferAttribute( array, itemSize ) {

		BufferAttribute.call( this, new Int8Array( array ), itemSize );

	}

	Int8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Int8BufferAttribute.prototype.constructor = Int8BufferAttribute;


	function Uint8BufferAttribute( array, itemSize ) {

		BufferAttribute.call( this, new Uint8Array( array ), itemSize );

	}

	Uint8BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Uint8BufferAttribute.prototype.constructor = Uint8BufferAttribute;


	function Uint8ClampedBufferAttribute( array, itemSize ) {

		BufferAttribute.call( this, new Uint8ClampedArray( array ), itemSize );

	}

	Uint8ClampedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Uint8ClampedBufferAttribute.prototype.constructor = Uint8ClampedBufferAttribute;


	function Int16BufferAttribute( array, itemSize ) {

		BufferAttribute.call( this, new Int16Array( array ), itemSize );

	}

	Int16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Int16BufferAttribute.prototype.constructor = Int16BufferAttribute;


	function Uint16BufferAttribute( array, itemSize ) {

		BufferAttribute.call( this, new Uint16Array( array ), itemSize );

	}

	Uint16BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Uint16BufferAttribute.prototype.constructor = Uint16BufferAttribute;


	function Int32BufferAttribute( array, itemSize ) {

		BufferAttribute.call( this, new Int32Array( array ), itemSize );

	}

	Int32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Int32BufferAttribute.prototype.constructor = Int32BufferAttribute;


	function Uint32BufferAttribute( array, itemSize ) {

		BufferAttribute.call( this, new Uint32Array( array ), itemSize );

	}

	Uint32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Uint32BufferAttribute.prototype.constructor = Uint32BufferAttribute;


	function Float32BufferAttribute( array, itemSize ) {

		BufferAttribute.call( this, new Float32Array( array ), itemSize );

	}

	Float32BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Float32BufferAttribute.prototype.constructor = Float32BufferAttribute;


	function Float64BufferAttribute( array, itemSize ) {

		BufferAttribute.call( this, new Float64Array( array ), itemSize );

	}

	Float64BufferAttribute.prototype = Object.create( BufferAttribute.prototype );
	Float64BufferAttribute.prototype.constructor = Float64BufferAttribute;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function DirectGeometry() {

		this.indices = [];
		this.vertices = [];
		this.normals = [];
		this.colors = [];
		this.uvs = [];
		this.uvs2 = [];

		this.groups = [];

		this.morphTargets = {};

		this.skinWeights = [];
		this.skinIndices = [];

		// this.lineDistances = [];

		this.boundingBox = null;
		this.boundingSphere = null;

		// update flags

		this.verticesNeedUpdate = false;
		this.normalsNeedUpdate = false;
		this.colorsNeedUpdate = false;
		this.uvsNeedUpdate = false;
		this.groupsNeedUpdate = false;

	}

	Object.assign( DirectGeometry.prototype, {

		computeGroups: function ( geometry ) {

			var group;
			var groups = [];
			var materialIndex = undefined;

			var faces = geometry.faces;

			for ( var i = 0; i < faces.length; i ++ ) {

				var face = faces[ i ];

				// materials

				if ( face.materialIndex !== materialIndex ) {

					materialIndex = face.materialIndex;

					if ( group !== undefined ) {

						group.count = ( i * 3 ) - group.start;
						groups.push( group );

					}

					group = {
						start: i * 3,
						materialIndex: materialIndex
					};

				}

			}

			if ( group !== undefined ) {

				group.count = ( i * 3 ) - group.start;
				groups.push( group );

			}

			this.groups = groups;

		},

		fromGeometry: function ( geometry ) {

			var faces = geometry.faces;
			var vertices = geometry.vertices;
			var faceVertexUvs = geometry.faceVertexUvs;

			var hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;
			var hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;

			// morphs

			var morphTargets = geometry.morphTargets;
			var morphTargetsLength = morphTargets.length;

			var morphTargetsPosition;

			if ( morphTargetsLength > 0 ) {

				morphTargetsPosition = [];

				for ( var i = 0; i < morphTargetsLength; i ++ ) {

					morphTargetsPosition[ i ] = [];

				}

				this.morphTargets.position = morphTargetsPosition;

			}

			var morphNormals = geometry.morphNormals;
			var morphNormalsLength = morphNormals.length;

			var morphTargetsNormal;

			if ( morphNormalsLength > 0 ) {

				morphTargetsNormal = [];

				for ( var i = 0; i < morphNormalsLength; i ++ ) {

					morphTargetsNormal[ i ] = [];

				}

				this.morphTargets.normal = morphTargetsNormal;

			}

			// skins

			var skinIndices = geometry.skinIndices;
			var skinWeights = geometry.skinWeights;

			var hasSkinIndices = skinIndices.length === vertices.length;
			var hasSkinWeights = skinWeights.length === vertices.length;

			//

			for ( var i = 0; i < faces.length; i ++ ) {

				var face = faces[ i ];

				this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );

				var vertexNormals = face.vertexNormals;

				if ( vertexNormals.length === 3 ) {

					this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );

				} else {

					var normal = face.normal;

					this.normals.push( normal, normal, normal );

				}

				var vertexColors = face.vertexColors;

				if ( vertexColors.length === 3 ) {

					this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );

				} else {

					var color = face.color;

					this.colors.push( color, color, color );

				}

				if ( hasFaceVertexUv === true ) {

					var vertexUvs = faceVertexUvs[ 0 ][ i ];

					if ( vertexUvs !== undefined ) {

						this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );

					} else {

						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );

						this.uvs.push( new Vector2(), new Vector2(), new Vector2() );

					}

				}

				if ( hasFaceVertexUv2 === true ) {

					var vertexUvs = faceVertexUvs[ 1 ][ i ];

					if ( vertexUvs !== undefined ) {

						this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );

					} else {

						console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );

						this.uvs2.push( new Vector2(), new Vector2(), new Vector2() );

					}

				}

				// morphs

				for ( var j = 0; j < morphTargetsLength; j ++ ) {

					var morphTarget = morphTargets[ j ].vertices;

					morphTargetsPosition[ j ].push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );

				}

				for ( var j = 0; j < morphNormalsLength; j ++ ) {

					var morphNormal = morphNormals[ j ].vertexNormals[ i ];

					morphTargetsNormal[ j ].push( morphNormal.a, morphNormal.b, morphNormal.c );

				}

				// skins

				if ( hasSkinIndices ) {

					this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );

				}

				if ( hasSkinWeights ) {

					this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );

				}

			}

			this.computeGroups( geometry );

			this.verticesNeedUpdate = geometry.verticesNeedUpdate;
			this.normalsNeedUpdate = geometry.normalsNeedUpdate;
			this.colorsNeedUpdate = geometry.colorsNeedUpdate;
			this.uvsNeedUpdate = geometry.uvsNeedUpdate;
			this.groupsNeedUpdate = geometry.groupsNeedUpdate;

			return this;

		}

	} );

	function arrayMax( array ) {

		if ( array.length === 0 ) return - Infinity;

		var max = array[ 0 ];

		for ( var i = 1, l = array.length; i < l; ++ i ) {

			if ( array[ i ] > max ) max = array[ i ];

		}

		return max;

	}

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	function BufferGeometry() {

		Object.defineProperty( this, 'id', { value: GeometryIdCount() } );

		this.uuid = _Math.generateUUID();

		this.name = '';
		this.type = 'BufferGeometry';

		this.index = null;
		this.attributes = {};

		this.morphAttributes = {};

		this.groups = [];

		this.boundingBox = null;
		this.boundingSphere = null;

		this.drawRange = { start: 0, count: Infinity };

	}

	BufferGeometry.MaxIndex = 65535;

	Object.assign( BufferGeometry.prototype, EventDispatcher.prototype, {

		isBufferGeometry: true,

		getIndex: function () {

			return this.index;

		},

		setIndex: function ( index ) {

			if ( Array.isArray( index ) ) {

				this.index = new ( arrayMax( index ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( index, 1 );

			} else {

				this.index = index;

			}

		},

		addAttribute: function ( name, attribute ) {

			if ( ! ( attribute && attribute.isBufferAttribute ) && ! ( attribute && attribute.isInterleavedBufferAttribute ) ) {

				console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );

				this.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );

				return;

			}

			if ( name === 'index' ) {

				console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );
				this.setIndex( attribute );

				return;

			}

			this.attributes[ name ] = attribute;

			return this;

		},

		getAttribute: function ( name ) {

			return this.attributes[ name ];

		},

		removeAttribute: function ( name ) {

			delete this.attributes[ name ];

			return this;

		},

		addGroup: function ( start, count, materialIndex ) {

			this.groups.push( {

				start: start,
				count: count,
				materialIndex: materialIndex !== undefined ? materialIndex : 0

			} );

		},

		clearGroups: function () {

			this.groups = [];

		},

		setDrawRange: function ( start, count ) {

			this.drawRange.start = start;
			this.drawRange.count = count;

		},

		applyMatrix: function ( matrix ) {

			var position = this.attributes.position;

			if ( position !== undefined ) {

				matrix.applyToBufferAttribute( position );
				position.needsUpdate = true;

			}

			var normal = this.attributes.normal;

			if ( normal !== undefined ) {

				var normalMatrix = new Matrix3().getNormalMatrix( matrix );

				normalMatrix.applyToBufferAttribute( normal );
				normal.needsUpdate = true;

			}

			if ( this.boundingBox !== null ) {

				this.computeBoundingBox();

			}

			if ( this.boundingSphere !== null ) {

				this.computeBoundingSphere();

			}

			return this;

		},

		rotateX: function () {

			// rotate geometry around world x-axis

			var m1 = new Matrix4();

			return function rotateX( angle ) {

				m1.makeRotationX( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		rotateY: function () {

			// rotate geometry around world y-axis

			var m1 = new Matrix4();

			return function rotateY( angle ) {

				m1.makeRotationY( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		rotateZ: function () {

			// rotate geometry around world z-axis

			var m1 = new Matrix4();

			return function rotateZ( angle ) {

				m1.makeRotationZ( angle );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		translate: function () {

			// translate geometry

			var m1 = new Matrix4();

			return function translate( x, y, z ) {

				m1.makeTranslation( x, y, z );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		scale: function () {

			// scale geometry

			var m1 = new Matrix4();

			return function scale( x, y, z ) {

				m1.makeScale( x, y, z );

				this.applyMatrix( m1 );

				return this;

			};

		}(),

		lookAt: function () {

			var obj = new Object3D();

			return function lookAt( vector ) {

				obj.lookAt( vector );

				obj.updateMatrix();

				this.applyMatrix( obj.matrix );

			};

		}(),

		center: function () {

			this.computeBoundingBox();

			var offset = this.boundingBox.getCenter().negate();

			this.translate( offset.x, offset.y, offset.z );

			return offset;

		},

		setFromObject: function ( object ) {

			// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );

			var geometry = object.geometry;

			if ( object.isPoints || object.isLine ) {

				var positions = new Float32BufferAttribute( geometry.vertices.length * 3, 3 );
				var colors = new Float32BufferAttribute( geometry.colors.length * 3, 3 );

				this.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );
				this.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );

				if ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {

					var lineDistances = new Float32BufferAttribute( geometry.lineDistances.length, 1 );

					this.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );

				}

				if ( geometry.boundingSphere !== null ) {

					this.boundingSphere = geometry.boundingSphere.clone();

				}

				if ( geometry.boundingBox !== null ) {

					this.boundingBox = geometry.boundingBox.clone();

				}

			} else if ( object.isMesh ) {

				if ( geometry && geometry.isGeometry ) {

					this.fromGeometry( geometry );

				}

			}

			return this;

		},

		updateFromObject: function ( object ) {

			var geometry = object.geometry;

			if ( object.isMesh ) {

				var direct = geometry.__directGeometry;

				if ( geometry.elementsNeedUpdate === true ) {

					direct = undefined;
					geometry.elementsNeedUpdate = false;

				}

				if ( direct === undefined ) {

					return this.fromGeometry( geometry );

				}

				direct.verticesNeedUpdate = geometry.verticesNeedUpdate;
				direct.normalsNeedUpdate = geometry.normalsNeedUpdate;
				direct.colorsNeedUpdate = geometry.colorsNeedUpdate;
				direct.uvsNeedUpdate = geometry.uvsNeedUpdate;
				direct.groupsNeedUpdate = geometry.groupsNeedUpdate;

				geometry.verticesNeedUpdate = false;
				geometry.normalsNeedUpdate = false;
				geometry.colorsNeedUpdate = false;
				geometry.uvsNeedUpdate = false;
				geometry.groupsNeedUpdate = false;

				geometry = direct;

			}

			var attribute;

			if ( geometry.verticesNeedUpdate === true ) {

				attribute = this.attributes.position;

				if ( attribute !== undefined ) {

					attribute.copyVector3sArray( geometry.vertices );
					attribute.needsUpdate = true;

				}

				geometry.verticesNeedUpdate = false;

			}

			if ( geometry.normalsNeedUpdate === true ) {

				attribute = this.attributes.normal;

				if ( attribute !== undefined ) {

					attribute.copyVector3sArray( geometry.normals );
					attribute.needsUpdate = true;

				}

				geometry.normalsNeedUpdate = false;

			}

			if ( geometry.colorsNeedUpdate === true ) {

				attribute = this.attributes.color;

				if ( attribute !== undefined ) {

					attribute.copyColorsArray( geometry.colors );
					attribute.needsUpdate = true;

				}

				geometry.colorsNeedUpdate = false;

			}

			if ( geometry.uvsNeedUpdate ) {

				attribute = this.attributes.uv;

				if ( attribute !== undefined ) {

					attribute.copyVector2sArray( geometry.uvs );
					attribute.needsUpdate = true;

				}

				geometry.uvsNeedUpdate = false;

			}

			if ( geometry.lineDistancesNeedUpdate ) {

				attribute = this.attributes.lineDistance;

				if ( attribute !== undefined ) {

					attribute.copyArray( geometry.lineDistances );
					attribute.needsUpdate = true;

				}

				geometry.lineDistancesNeedUpdate = false;

			}

			if ( geometry.groupsNeedUpdate ) {

				geometry.computeGroups( object.geometry );
				this.groups = geometry.groups;

				geometry.groupsNeedUpdate = false;

			}

			return this;

		},

		fromGeometry: function ( geometry ) {

			geometry.__directGeometry = new DirectGeometry().fromGeometry( geometry );

			return this.fromDirectGeometry( geometry.__directGeometry );

		},

		fromDirectGeometry: function ( geometry ) {

			var positions = new Float32Array( geometry.vertices.length * 3 );
			this.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );

			if ( geometry.normals.length > 0 ) {

				var normals = new Float32Array( geometry.normals.length * 3 );
				this.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );

			}

			if ( geometry.colors.length > 0 ) {

				var colors = new Float32Array( geometry.colors.length * 3 );
				this.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );

			}

			if ( geometry.uvs.length > 0 ) {

				var uvs = new Float32Array( geometry.uvs.length * 2 );
				this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );

			}

			if ( geometry.uvs2.length > 0 ) {

				var uvs2 = new Float32Array( geometry.uvs2.length * 2 );
				this.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );

			}

			if ( geometry.indices.length > 0 ) {

				var TypeArray = arrayMax( geometry.indices ) > 65535 ? Uint32Array : Uint16Array;
				var indices = new TypeArray( geometry.indices.length * 3 );
				this.setIndex( new BufferAttribute( indices, 1 ).copyIndicesArray( geometry.indices ) );

			}

			// groups

			this.groups = geometry.groups;

			// morphs

			for ( var name in geometry.morphTargets ) {

				var array = [];
				var morphTargets = geometry.morphTargets[ name ];

				for ( var i = 0, l = morphTargets.length; i < l; i ++ ) {

					var morphTarget = morphTargets[ i ];

					var attribute = new Float32BufferAttribute( morphTarget.length * 3, 3 );

					array.push( attribute.copyVector3sArray( morphTarget ) );

				}

				this.morphAttributes[ name ] = array;

			}

			// skinning

			if ( geometry.skinIndices.length > 0 ) {

				var skinIndices = new Float32BufferAttribute( geometry.skinIndices.length * 4, 4 );
				this.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );

			}

			if ( geometry.skinWeights.length > 0 ) {

				var skinWeights = new Float32BufferAttribute( geometry.skinWeights.length * 4, 4 );
				this.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );

			}

			//

			if ( geometry.boundingSphere !== null ) {

				this.boundingSphere = geometry.boundingSphere.clone();

			}

			if ( geometry.boundingBox !== null ) {

				this.boundingBox = geometry.boundingBox.clone();

			}

			return this;

		},

		computeBoundingBox: function () {

			if ( this.boundingBox === null ) {

				this.boundingBox = new Box3();

			}

			var position = this.attributes.position;

			if ( position !== undefined ) {

				this.boundingBox.setFromBufferAttribute( position );

			} else {

				this.boundingBox.makeEmpty();

			}

			if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {

				console.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this );

			}

		},

		computeBoundingSphere: function () {

			var box = new Box3();
			var vector = new Vector3();

			return function computeBoundingSphere() {

				if ( this.boundingSphere === null ) {

					this.boundingSphere = new Sphere();

				}

				var position = this.attributes.position;

				if ( position ) {

					var center = this.boundingSphere.center;

					box.setFromBufferAttribute( position );
					box.getCenter( center );

					// hoping to find a boundingSphere with a radius smaller than the
					// boundingSphere of the boundingBox: sqrt(3) smaller in the best case

					var maxRadiusSq = 0;

					for ( var i = 0, il = position.count; i < il; i ++ ) {

						vector.x = position.getX( i );
						vector.y = position.getY( i );
						vector.z = position.getZ( i );
						maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );

					}

					this.boundingSphere.radius = Math.sqrt( maxRadiusSq );

					if ( isNaN( this.boundingSphere.radius ) ) {

						console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this );

					}

				}

			};

		}(),

		computeFaceNormals: function () {

			// backwards compatibility

		},

		computeVertexNormals: function () {

			var index = this.index;
			var attributes = this.attributes;
			var groups = this.groups;

			if ( attributes.position ) {

				var positions = attributes.position.array;

				if ( attributes.normal === undefined ) {

					this.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) );

				} else {

					// reset existing normals to zero

					var array = attributes.normal.array;

					for ( var i = 0, il = array.length; i < il; i ++ ) {

						array[ i ] = 0;

					}

				}

				var normals = attributes.normal.array;

				var vA, vB, vC;
				var pA = new Vector3(), pB = new Vector3(), pC = new Vector3();
				var cb = new Vector3(), ab = new Vector3();

				// indexed elements

				if ( index ) {

					var indices = index.array;

					if ( groups.length === 0 ) {

						this.addGroup( 0, indices.length );

					}

					for ( var j = 0, jl = groups.length; j < jl; ++ j ) {

						var group = groups[ j ];

						var start = group.start;
						var count = group.count;

						for ( var i = start, il = start + count; i < il; i += 3 ) {

							vA = indices[ i + 0 ] * 3;
							vB = indices[ i + 1 ] * 3;
							vC = indices[ i + 2 ] * 3;

							pA.fromArray( positions, vA );
							pB.fromArray( positions, vB );
							pC.fromArray( positions, vC );

							cb.subVectors( pC, pB );
							ab.subVectors( pA, pB );
							cb.cross( ab );

							normals[ vA ] += cb.x;
							normals[ vA + 1 ] += cb.y;
							normals[ vA + 2 ] += cb.z;

							normals[ vB ] += cb.x;
							normals[ vB + 1 ] += cb.y;
							normals[ vB + 2 ] += cb.z;

							normals[ vC ] += cb.x;
							normals[ vC + 1 ] += cb.y;
							normals[ vC + 2 ] += cb.z;

						}

					}

				} else {

					// non-indexed elements (unconnected triangle soup)

					for ( var i = 0, il = positions.length; i < il; i += 9 ) {

						pA.fromArray( positions, i );
						pB.fromArray( positions, i + 3 );
						pC.fromArray( positions, i + 6 );

						cb.subVectors( pC, pB );
						ab.subVectors( pA, pB );
						cb.cross( ab );

						normals[ i ] = cb.x;
						normals[ i + 1 ] = cb.y;
						normals[ i + 2 ] = cb.z;

						normals[ i + 3 ] = cb.x;
						normals[ i + 4 ] = cb.y;
						normals[ i + 5 ] = cb.z;

						normals[ i + 6 ] = cb.x;
						normals[ i + 7 ] = cb.y;
						normals[ i + 8 ] = cb.z;

					}

				}

				this.normalizeNormals();

				attributes.normal.needsUpdate = true;

			}

		},

		merge: function ( geometry, offset ) {

			if ( ! ( geometry && geometry.isBufferGeometry ) ) {

				console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );
				return;

			}

			if ( offset === undefined ) offset = 0;

			var attributes = this.attributes;

			for ( var key in attributes ) {

				if ( geometry.attributes[ key ] === undefined ) continue;

				var attribute1 = attributes[ key ];
				var attributeArray1 = attribute1.array;

				var attribute2 = geometry.attributes[ key ];
				var attributeArray2 = attribute2.array;

				var attributeSize = attribute2.itemSize;

				for ( var i = 0, j = attributeSize * offset; i < attributeArray2.length; i ++, j ++ ) {

					attributeArray1[ j ] = attributeArray2[ i ];

				}

			}

			return this;

		},

		normalizeNormals: function () {

			var normals = this.attributes.normal;

			var x, y, z, n;

			for ( var i = 0, il = normals.count; i < il; i ++ ) {

				x = normals.getX( i );
				y = normals.getY( i );
				z = normals.getZ( i );

				n = 1.0 / Math.sqrt( x * x + y * y + z * z );

				normals.setXYZ( i, x * n, y * n, z * n );

			}

		},

		toNonIndexed: function () {

			if ( this.index === null ) {

				console.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' );
				return this;

			}

			var geometry2 = new BufferGeometry();

			var indices = this.index.array;
			var attributes = this.attributes;

			for ( var name in attributes ) {

				var attribute = attributes[ name ];

				var array = attribute.array;
				var itemSize = attribute.itemSize;

				var array2 = new array.constructor( indices.length * itemSize );

				var index = 0, index2 = 0;

				for ( var i = 0, l = indices.length; i < l; i ++ ) {

					index = indices[ i ] * itemSize;

					for ( var j = 0; j < itemSize; j ++ ) {

						array2[ index2 ++ ] = array[ index ++ ];

					}

				}

				geometry2.addAttribute( name, new BufferAttribute( array2, itemSize ) );

			}

			return geometry2;

		},

		toJSON: function () {

			var data = {
				metadata: {
					version: 4.5,
					type: 'BufferGeometry',
					generator: 'BufferGeometry.toJSON'
				}
			};

			// standard BufferGeometry serialization

			data.uuid = this.uuid;
			data.type = this.type;
			if ( this.name !== '' ) data.name = this.name;

			if ( this.parameters !== undefined ) {

				var parameters = this.parameters;

				for ( var key in parameters ) {

					if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];

				}

				return data;

			}

			data.data = { attributes: {} };

			var index = this.index;

			if ( index !== null ) {

				var array = Array.prototype.slice.call( index.array );

				data.data.index = {
					type: index.array.constructor.name,
					array: array
				};

			}

			var attributes = this.attributes;

			for ( var key in attributes ) {

				var attribute = attributes[ key ];

				var array = Array.prototype.slice.call( attribute.array );

				data.data.attributes[ key ] = {
					itemSize: attribute.itemSize,
					type: attribute.array.constructor.name,
					array: array,
					normalized: attribute.normalized
				};

			}

			var groups = this.groups;

			if ( groups.length > 0 ) {

				data.data.groups = JSON.parse( JSON.stringify( groups ) );

			}

			var boundingSphere = this.boundingSphere;

			if ( boundingSphere !== null ) {

				data.data.boundingSphere = {
					center: boundingSphere.center.toArray(),
					radius: boundingSphere.radius
				};

			}

			return data;

		},

		clone: function () {

			/*
			 // Handle primitives

			 var parameters = this.parameters;

			 if ( parameters !== undefined ) {

			 var values = [];

			 for ( var key in parameters ) {

			 values.push( parameters[ key ] );

			 }

			 var geometry = Object.create( this.constructor.prototype );
			 this.constructor.apply( geometry, values );
			 return geometry;

			 }

			 return new this.constructor().copy( this );
			 */

			return new BufferGeometry().copy( this );

		},

		copy: function ( source ) {

			var name, i, l;

			// reset

			this.index = null;
			this.attributes = {};
			this.morphAttributes = {};
			this.groups = [];
			this.boundingBox = null;
			this.boundingSphere = null;

			// name

			this.name = source.name;

			// index

			var index = source.index;

			if ( index !== null ) {

				this.setIndex( index.clone() );

			}

			// attributes

			var attributes = source.attributes;

			for ( name in attributes ) {

				var attribute = attributes[ name ];
				this.addAttribute( name, attribute.clone() );

			}

			// morph attributes

			var morphAttributes = source.morphAttributes;

			for ( name in morphAttributes ) {

				var array = [];
				var morphAttribute = morphAttributes[ name ]; // morphAttribute: array of Float32BufferAttributes

				for ( i = 0, l = morphAttribute.length; i < l; i ++ ) {

					array.push( morphAttribute[ i ].clone() );

				}

				this.morphAttributes[ name ] = array;

			}

			// groups

			var groups = source.groups;

			for ( i = 0, l = groups.length; i < l; i ++ ) {

				var group = groups[ i ];
				this.addGroup( group.start, group.count, group.materialIndex );

			}

			// bounding box

			var boundingBox = source.boundingBox;

			if ( boundingBox !== null ) {

				this.boundingBox = boundingBox.clone();

			}

			// bounding sphere

			var boundingSphere = source.boundingSphere;

			if ( boundingSphere !== null ) {

				this.boundingSphere = boundingSphere.clone();

			}

			// draw range

			this.drawRange.start = source.drawRange.start;
			this.drawRange.count = source.drawRange.count;

			return this;

		},

		dispose: function () {

			this.dispatchEvent( { type: 'dispose' } );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// BoxGeometry

	function BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {

		Geometry.call( this );

		this.type = 'BoxGeometry';

		this.parameters = {
			width: width,
			height: height,
			depth: depth,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			depthSegments: depthSegments
		};

		this.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) );
		this.mergeVertices();

	}

	BoxGeometry.prototype = Object.create( Geometry.prototype );
	BoxGeometry.prototype.constructor = BoxGeometry;

	// BoxBufferGeometry

	function BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {

		BufferGeometry.call( this );

		this.type = 'BoxBufferGeometry';

		this.parameters = {
			width: width,
			height: height,
			depth: depth,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			depthSegments: depthSegments
		};

		var scope = this;

		// segments

		widthSegments = Math.floor( widthSegments ) || 1;
		heightSegments = Math.floor( heightSegments ) || 1;
		depthSegments = Math.floor( depthSegments ) || 1;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var numberOfVertices = 0;
		var groupStart = 0;

		// build each side of the box geometry

		buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height,   width,  depthSegments, heightSegments, 0 ); // px
		buildPlane( 'z', 'y', 'x',   1, - 1, depth, height, - width,  depthSegments, heightSegments, 1 ); // nx
		buildPlane( 'x', 'z', 'y',   1,   1, width, depth,    height, widthSegments, depthSegments,  2 ); // py
		buildPlane( 'x', 'z', 'y',   1, - 1, width, depth,  - height, widthSegments, depthSegments,  3 ); // ny
		buildPlane( 'x', 'y', 'z',   1, - 1, width, height,   depth,  widthSegments, heightSegments, 4 ); // pz
		buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth,  widthSegments, heightSegments, 5 ); // nz

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {

			var segmentWidth = width / gridX;
			var segmentHeight = height / gridY;

			var widthHalf = width / 2;
			var heightHalf = height / 2;
			var depthHalf = depth / 2;

			var gridX1 = gridX + 1;
			var gridY1 = gridY + 1;

			var vertexCounter = 0;
			var groupCount = 0;

			var ix, iy;

			var vector = new Vector3();

			// generate vertices, normals and uvs

			for ( iy = 0; iy < gridY1; iy ++ ) {

				var y = iy * segmentHeight - heightHalf;

				for ( ix = 0; ix < gridX1; ix ++ ) {

					var x = ix * segmentWidth - widthHalf;

					// set values to correct vector component

					vector[ u ] = x * udir;
					vector[ v ] = y * vdir;
					vector[ w ] = depthHalf;

					// now apply vector to vertex buffer

					vertices.push( vector.x, vector.y, vector.z );

					// set values to correct vector component

					vector[ u ] = 0;
					vector[ v ] = 0;
					vector[ w ] = depth > 0 ? 1 : - 1;

					// now apply vector to normal buffer

					normals.push( vector.x, vector.y, vector.z );

					// uvs

					uvs.push( ix / gridX );
					uvs.push( 1 - ( iy / gridY ) );

					// counters

					vertexCounter += 1;

				}

			}

			// indices

			// 1. you need three indices to draw a single face
			// 2. a single segment consists of two faces
			// 3. so we need to generate six (2*3) indices per segment

			for ( iy = 0; iy < gridY; iy ++ ) {

				for ( ix = 0; ix < gridX; ix ++ ) {

					var a = numberOfVertices + ix + gridX1 * iy;
					var b = numberOfVertices + ix + gridX1 * ( iy + 1 );
					var c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );
					var d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;

					// faces

					indices.push( a, b, d );
					indices.push( b, c, d );

					// increase counter

					groupCount += 6;

				}

			}

			// add a group to the geometry. this will ensure multi material support

			scope.addGroup( groupStart, groupCount, materialIndex );

			// calculate new start value for groups

			groupStart += groupCount;

			// update total number of vertices

			numberOfVertices += vertexCounter;

		}

	}

	BoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	BoxBufferGeometry.prototype.constructor = BoxBufferGeometry;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// PlaneGeometry

	function PlaneGeometry( width, height, widthSegments, heightSegments ) {

		Geometry.call( this );

		this.type = 'PlaneGeometry';

		this.parameters = {
			width: width,
			height: height,
			widthSegments: widthSegments,
			heightSegments: heightSegments
		};

		this.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );
		this.mergeVertices();

	}

	PlaneGeometry.prototype = Object.create( Geometry.prototype );
	PlaneGeometry.prototype.constructor = PlaneGeometry;

	// PlaneBufferGeometry

	function PlaneBufferGeometry( width, height, widthSegments, heightSegments ) {

		BufferGeometry.call( this );

		this.type = 'PlaneBufferGeometry';

		this.parameters = {
			width: width,
			height: height,
			widthSegments: widthSegments,
			heightSegments: heightSegments
		};

		var width_half = width / 2;
		var height_half = height / 2;

		var gridX = Math.floor( widthSegments ) || 1;
		var gridY = Math.floor( heightSegments ) || 1;

		var gridX1 = gridX + 1;
		var gridY1 = gridY + 1;

		var segment_width = width / gridX;
		var segment_height = height / gridY;

		var ix, iy;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// generate vertices, normals and uvs

		for ( iy = 0; iy < gridY1; iy ++ ) {

			var y = iy * segment_height - height_half;

			for ( ix = 0; ix < gridX1; ix ++ ) {

				var x = ix * segment_width - width_half;

				vertices.push( x, - y, 0 );

				normals.push( 0, 0, 1 );

				uvs.push( ix / gridX );
				uvs.push( 1 - ( iy / gridY ) );

			}

		}

		// indices

		for ( iy = 0; iy < gridY; iy ++ ) {

			for ( ix = 0; ix < gridX; ix ++ ) {

				var a = ix + gridX1 * iy;
				var b = ix + gridX1 * ( iy + 1 );
				var c = ( ix + 1 ) + gridX1 * ( iy + 1 );
				var d = ( ix + 1 ) + gridX1 * iy;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	PlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	PlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  lightMap: new THREE.Texture( <Image> ),
	 *  lightMapIntensity: <float>
	 *
	 *  aoMap: new THREE.Texture( <Image> ),
	 *  aoMapIntensity: <float>
	 *
	 *  specularMap: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
	 *  combine: THREE.Multiply,
	 *  reflectivity: <float>,
	 *  refractionRatio: <float>,
	 *
	 *  shading: THREE.SmoothShading,
	 *  depthTest: <bool>,
	 *  depthWrite: <bool>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>
	 * }
	 */

	function MeshBasicMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshBasicMaterial';

		this.color = new Color( 0xffffff ); // emissive

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.specularMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.skinning = false;
		this.morphTargets = false;

		this.lights = false;

		this.setValues( parameters );

	}

	MeshBasicMaterial.prototype = Object.create( Material.prototype );
	MeshBasicMaterial.prototype.constructor = MeshBasicMaterial;

	MeshBasicMaterial.prototype.isMeshBasicMaterial = true;

	MeshBasicMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.specularMap = source.specularMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;

		return this;

	};

	/**
	 * @author bhouston / http://clara.io
	 */

	function Ray( origin, direction ) {

		this.origin = ( origin !== undefined ) ? origin : new Vector3();
		this.direction = ( direction !== undefined ) ? direction : new Vector3();

	}

	Object.assign( Ray.prototype, {

		set: function ( origin, direction ) {

			this.origin.copy( origin );
			this.direction.copy( direction );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( ray ) {

			this.origin.copy( ray.origin );
			this.direction.copy( ray.direction );

			return this;

		},

		at: function ( t, optionalTarget ) {

			var result = optionalTarget || new Vector3();

			return result.copy( this.direction ).multiplyScalar( t ).add( this.origin );

		},

		lookAt: function ( v ) {

			this.direction.copy( v ).sub( this.origin ).normalize();

			return this;

		},

		recast: function () {

			var v1 = new Vector3();

			return function recast( t ) {

				this.origin.copy( this.at( t, v1 ) );

				return this;

			};

		}(),

		closestPointToPoint: function ( point, optionalTarget ) {

			var result = optionalTarget || new Vector3();
			result.subVectors( point, this.origin );
			var directionDistance = result.dot( this.direction );

			if ( directionDistance < 0 ) {

				return result.copy( this.origin );

			}

			return result.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

		},

		distanceToPoint: function ( point ) {

			return Math.sqrt( this.distanceSqToPoint( point ) );

		},

		distanceSqToPoint: function () {

			var v1 = new Vector3();

			return function distanceSqToPoint( point ) {

				var directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );

				// point behind the ray

				if ( directionDistance < 0 ) {

					return this.origin.distanceToSquared( point );

				}

				v1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );

				return v1.distanceToSquared( point );

			};

		}(),

		distanceSqToSegment: function () {

			var segCenter = new Vector3();
			var segDir = new Vector3();
			var diff = new Vector3();

			return function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {

				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h
				// It returns the min distance between the ray and the segment
				// defined by v0 and v1
				// It can also set two optional targets :
				// - The closest point on the ray
				// - The closest point on the segment

				segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );
				segDir.copy( v1 ).sub( v0 ).normalize();
				diff.copy( this.origin ).sub( segCenter );

				var segExtent = v0.distanceTo( v1 ) * 0.5;
				var a01 = - this.direction.dot( segDir );
				var b0 = diff.dot( this.direction );
				var b1 = - diff.dot( segDir );
				var c = diff.lengthSq();
				var det = Math.abs( 1 - a01 * a01 );
				var s0, s1, sqrDist, extDet;

				if ( det > 0 ) {

					// The ray and segment are not parallel.

					s0 = a01 * b1 - b0;
					s1 = a01 * b0 - b1;
					extDet = segExtent * det;

					if ( s0 >= 0 ) {

						if ( s1 >= - extDet ) {

							if ( s1 <= extDet ) {

								// region 0
								// Minimum at interior points of ray and segment.

								var invDet = 1 / det;
								s0 *= invDet;
								s1 *= invDet;
								sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;

							} else {

								// region 1

								s1 = segExtent;
								s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
								sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

							}

						} else {

							// region 5

							s1 = - segExtent;
							s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

						}

					} else {

						if ( s1 <= - extDet ) {

							// region 4

							s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );
							s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

						} else if ( s1 <= extDet ) {

							// region 3

							s0 = 0;
							s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );
							sqrDist = s1 * ( s1 + 2 * b1 ) + c;

						} else {

							// region 2

							s0 = Math.max( 0, - ( a01 * segExtent + b0 ) );
							s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );
							sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

						}

					}

				} else {

					// Ray and segment are parallel.

					s1 = ( a01 > 0 ) ? - segExtent : segExtent;
					s0 = Math.max( 0, - ( a01 * s1 + b0 ) );
					sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;

				}

				if ( optionalPointOnRay ) {

					optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );

				}

				if ( optionalPointOnSegment ) {

					optionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );

				}

				return sqrDist;

			};

		}(),

		intersectSphere: function () {

			var v1 = new Vector3();

			return function intersectSphere( sphere, optionalTarget ) {

				v1.subVectors( sphere.center, this.origin );
				var tca = v1.dot( this.direction );
				var d2 = v1.dot( v1 ) - tca * tca;
				var radius2 = sphere.radius * sphere.radius;

				if ( d2 > radius2 ) return null;

				var thc = Math.sqrt( radius2 - d2 );

				// t0 = first intersect point - entrance on front of sphere
				var t0 = tca - thc;

				// t1 = second intersect point - exit point on back of sphere
				var t1 = tca + thc;

				// test to see if both t0 and t1 are behind the ray - if so, return null
				if ( t0 < 0 && t1 < 0 ) return null;

				// test to see if t0 is behind the ray:
				// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
				// in order to always return an intersect point that is in front of the ray.
				if ( t0 < 0 ) return this.at( t1, optionalTarget );

				// else t0 is in front of the ray, so return the first collision point scaled by t0
				return this.at( t0, optionalTarget );

			};

		}(),

		intersectsSphere: function ( sphere ) {

			return this.distanceToPoint( sphere.center ) <= sphere.radius;

		},

		distanceToPlane: function ( plane ) {

			var denominator = plane.normal.dot( this.direction );

			if ( denominator === 0 ) {

				// line is coplanar, return origin
				if ( plane.distanceToPoint( this.origin ) === 0 ) {

					return 0;

				}

				// Null is preferable to undefined since undefined means.... it is undefined

				return null;

			}

			var t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;

			// Return if the ray never intersects the plane

			return t >= 0 ? t :  null;

		},

		intersectPlane: function ( plane, optionalTarget ) {

			var t = this.distanceToPlane( plane );

			if ( t === null ) {

				return null;

			}

			return this.at( t, optionalTarget );

		},

		intersectsPlane: function ( plane ) {

			// check if the ray lies on the plane first

			var distToPoint = plane.distanceToPoint( this.origin );

			if ( distToPoint === 0 ) {

				return true;

			}

			var denominator = plane.normal.dot( this.direction );

			if ( denominator * distToPoint < 0 ) {

				return true;

			}

			// ray origin is behind the plane (and is pointing behind it)

			return false;

		},

		intersectBox: function ( box, optionalTarget ) {

			var tmin, tmax, tymin, tymax, tzmin, tzmax;

			var invdirx = 1 / this.direction.x,
				invdiry = 1 / this.direction.y,
				invdirz = 1 / this.direction.z;

			var origin = this.origin;

			if ( invdirx >= 0 ) {

				tmin = ( box.min.x - origin.x ) * invdirx;
				tmax = ( box.max.x - origin.x ) * invdirx;

			} else {

				tmin = ( box.max.x - origin.x ) * invdirx;
				tmax = ( box.min.x - origin.x ) * invdirx;

			}

			if ( invdiry >= 0 ) {

				tymin = ( box.min.y - origin.y ) * invdiry;
				tymax = ( box.max.y - origin.y ) * invdiry;

			} else {

				tymin = ( box.max.y - origin.y ) * invdiry;
				tymax = ( box.min.y - origin.y ) * invdiry;

			}

			if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;

			// These lines also handle the case where tmin or tmax is NaN
			// (result of 0 * Infinity). x !== x returns true if x is NaN

			if ( tymin > tmin || tmin !== tmin ) tmin = tymin;

			if ( tymax < tmax || tmax !== tmax ) tmax = tymax;

			if ( invdirz >= 0 ) {

				tzmin = ( box.min.z - origin.z ) * invdirz;
				tzmax = ( box.max.z - origin.z ) * invdirz;

			} else {

				tzmin = ( box.max.z - origin.z ) * invdirz;
				tzmax = ( box.min.z - origin.z ) * invdirz;

			}

			if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;

			if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;

			if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;

			//return point closest to the ray (positive side)

			if ( tmax < 0 ) return null;

			return this.at( tmin >= 0 ? tmin : tmax, optionalTarget );

		},

		intersectsBox: ( function () {

			var v = new Vector3();

			return function intersectsBox( box ) {

				return this.intersectBox( box, v ) !== null;

			};

		} )(),

		intersectTriangle: function () {

			// Compute the offset origin, edges, and normal.
			var diff = new Vector3();
			var edge1 = new Vector3();
			var edge2 = new Vector3();
			var normal = new Vector3();

			return function intersectTriangle( a, b, c, backfaceCulling, optionalTarget ) {

				// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h

				edge1.subVectors( b, a );
				edge2.subVectors( c, a );
				normal.crossVectors( edge1, edge2 );

				// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
				// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
				//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
				//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
				//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
				var DdN = this.direction.dot( normal );
				var sign;

				if ( DdN > 0 ) {

					if ( backfaceCulling ) return null;
					sign = 1;

				} else if ( DdN < 0 ) {

					sign = - 1;
					DdN = - DdN;

				} else {

					return null;

				}

				diff.subVectors( this.origin, a );
				var DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );

				// b1 < 0, no intersection
				if ( DdQxE2 < 0 ) {

					return null;

				}

				var DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );

				// b2 < 0, no intersection
				if ( DdE1xQ < 0 ) {

					return null;

				}

				// b1+b2 > 1, no intersection
				if ( DdQxE2 + DdE1xQ > DdN ) {

					return null;

				}

				// Line intersects triangle, check if ray does.
				var QdN = - sign * diff.dot( normal );

				// t < 0, no intersection
				if ( QdN < 0 ) {

					return null;

				}

				// Ray intersects triangle.
				return this.at( QdN / DdN, optionalTarget );

			};

		}(),

		applyMatrix4: function ( matrix4 ) {

			this.origin.applyMatrix4( matrix4 );
			this.direction.transformDirection( matrix4 );

			return this;

		},

		equals: function ( ray ) {

			return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 */

	function Line3( start, end ) {

		this.start = ( start !== undefined ) ? start : new Vector3();
		this.end = ( end !== undefined ) ? end : new Vector3();

	}

	Object.assign( Line3.prototype, {

		set: function ( start, end ) {

			this.start.copy( start );
			this.end.copy( end );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( line ) {

			this.start.copy( line.start );
			this.end.copy( line.end );

			return this;

		},

		getCenter: function ( optionalTarget ) {

			var result = optionalTarget || new Vector3();
			return result.addVectors( this.start, this.end ).multiplyScalar( 0.5 );

		},

		delta: function ( optionalTarget ) {

			var result = optionalTarget || new Vector3();
			return result.subVectors( this.end, this.start );

		},

		distanceSq: function () {

			return this.start.distanceToSquared( this.end );

		},

		distance: function () {

			return this.start.distanceTo( this.end );

		},

		at: function ( t, optionalTarget ) {

			var result = optionalTarget || new Vector3();

			return this.delta( result ).multiplyScalar( t ).add( this.start );

		},

		closestPointToPointParameter: function () {

			var startP = new Vector3();
			var startEnd = new Vector3();

			return function closestPointToPointParameter( point, clampToLine ) {

				startP.subVectors( point, this.start );
				startEnd.subVectors( this.end, this.start );

				var startEnd2 = startEnd.dot( startEnd );
				var startEnd_startP = startEnd.dot( startP );

				var t = startEnd_startP / startEnd2;

				if ( clampToLine ) {

					t = _Math.clamp( t, 0, 1 );

				}

				return t;

			};

		}(),

		closestPointToPoint: function ( point, clampToLine, optionalTarget ) {

			var t = this.closestPointToPointParameter( point, clampToLine );

			var result = optionalTarget || new Vector3();

			return this.delta( result ).multiplyScalar( t ).add( this.start );

		},

		applyMatrix4: function ( matrix ) {

			this.start.applyMatrix4( matrix );
			this.end.applyMatrix4( matrix );

			return this;

		},

		equals: function ( line ) {

			return line.start.equals( this.start ) && line.end.equals( this.end );

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Triangle( a, b, c ) {

		this.a = ( a !== undefined ) ? a : new Vector3();
		this.b = ( b !== undefined ) ? b : new Vector3();
		this.c = ( c !== undefined ) ? c : new Vector3();

	}

	Object.assign( Triangle, {

		normal: function () {

			var v0 = new Vector3();

			return function normal( a, b, c, optionalTarget ) {

				var result = optionalTarget || new Vector3();

				result.subVectors( c, b );
				v0.subVectors( a, b );
				result.cross( v0 );

				var resultLengthSq = result.lengthSq();
				if ( resultLengthSq > 0 ) {

					return result.multiplyScalar( 1 / Math.sqrt( resultLengthSq ) );

				}

				return result.set( 0, 0, 0 );

			};

		}(),

		// static/instance method to calculate barycentric coordinates
		// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
		barycoordFromPoint: function () {

			var v0 = new Vector3();
			var v1 = new Vector3();
			var v2 = new Vector3();

			return function barycoordFromPoint( point, a, b, c, optionalTarget ) {

				v0.subVectors( c, a );
				v1.subVectors( b, a );
				v2.subVectors( point, a );

				var dot00 = v0.dot( v0 );
				var dot01 = v0.dot( v1 );
				var dot02 = v0.dot( v2 );
				var dot11 = v1.dot( v1 );
				var dot12 = v1.dot( v2 );

				var denom = ( dot00 * dot11 - dot01 * dot01 );

				var result = optionalTarget || new Vector3();

				// collinear or singular triangle
				if ( denom === 0 ) {

					// arbitrary location outside of triangle?
					// not sure if this is the best idea, maybe should be returning undefined
					return result.set( - 2, - 1, - 1 );

				}

				var invDenom = 1 / denom;
				var u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;
				var v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;

				// barycentric coordinates must always sum to 1
				return result.set( 1 - u - v, v, u );

			};

		}(),

		containsPoint: function () {

			var v1 = new Vector3();

			return function containsPoint( point, a, b, c ) {

				var result = Triangle.barycoordFromPoint( point, a, b, c, v1 );

				return ( result.x >= 0 ) && ( result.y >= 0 ) && ( ( result.x + result.y ) <= 1 );

			};

		}()

	} );

	Object.assign( Triangle.prototype, {

		set: function ( a, b, c ) {

			this.a.copy( a );
			this.b.copy( b );
			this.c.copy( c );

			return this;

		},

		setFromPointsAndIndices: function ( points, i0, i1, i2 ) {

			this.a.copy( points[ i0 ] );
			this.b.copy( points[ i1 ] );
			this.c.copy( points[ i2 ] );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( triangle ) {

			this.a.copy( triangle.a );
			this.b.copy( triangle.b );
			this.c.copy( triangle.c );

			return this;

		},

		area: function () {

			var v0 = new Vector3();
			var v1 = new Vector3();

			return function area() {

				v0.subVectors( this.c, this.b );
				v1.subVectors( this.a, this.b );

				return v0.cross( v1 ).length() * 0.5;

			};

		}(),

		midpoint: function ( optionalTarget ) {

			var result = optionalTarget || new Vector3();
			return result.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );

		},

		normal: function ( optionalTarget ) {

			return Triangle.normal( this.a, this.b, this.c, optionalTarget );

		},

		plane: function ( optionalTarget ) {

			var result = optionalTarget || new Plane();

			return result.setFromCoplanarPoints( this.a, this.b, this.c );

		},

		barycoordFromPoint: function ( point, optionalTarget ) {

			return Triangle.barycoordFromPoint( point, this.a, this.b, this.c, optionalTarget );

		},

		containsPoint: function ( point ) {

			return Triangle.containsPoint( point, this.a, this.b, this.c );

		},

		closestPointToPoint: function () {

			var plane = new Plane();
			var edgeList = [ new Line3(), new Line3(), new Line3() ];
			var projectedPoint = new Vector3();
			var closestPoint = new Vector3();

			return function closestPointToPoint( point, optionalTarget ) {

				var result = optionalTarget || new Vector3();
				var minDistance = Infinity;

				// project the point onto the plane of the triangle

				plane.setFromCoplanarPoints( this.a, this.b, this.c );
				plane.projectPoint( point, projectedPoint );

				// check if the projection lies within the triangle

				if( this.containsPoint( projectedPoint ) === true ) {

					// if so, this is the closest point

					result.copy( projectedPoint );

				} else {

					// if not, the point falls outside the triangle. the result is the closest point to the triangle's edges or vertices

					edgeList[ 0 ].set( this.a, this.b );
					edgeList[ 1 ].set( this.b, this.c );
					edgeList[ 2 ].set( this.c, this.a );

					for( var i = 0; i < edgeList.length; i ++ ) {

						edgeList[ i ].closestPointToPoint( projectedPoint, true, closestPoint );

						var distance = projectedPoint.distanceToSquared( closestPoint );

						if( distance < minDistance ) {

							minDistance = distance;

							result.copy( closestPoint );

						}

					}

				}

				return result;

			};

		}(),

		equals: function ( triangle ) {

			return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author mikael emtinger / http://gomo.se/
	 * @author jonobr1 / http://jonobr1.com/
	 */

	function Mesh( geometry, material ) {

		Object3D.call( this );

		this.type = 'Mesh';

		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
		this.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } );

		this.drawMode = TrianglesDrawMode;

		this.updateMorphTargets();

	}

	Mesh.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Mesh,

		isMesh: true,

		setDrawMode: function ( value ) {

			this.drawMode = value;

		},

		copy: function ( source ) {

			Object3D.prototype.copy.call( this, source );

			this.drawMode = source.drawMode;

			return this;

		},

		updateMorphTargets: function () {

			var geometry = this.geometry;
			var m, ml, name;

			if ( geometry.isBufferGeometry ) {

				var morphAttributes = geometry.morphAttributes;
				var keys = Object.keys( morphAttributes );

				if ( keys.length > 0 ) {

					var morphAttribute = morphAttributes[ keys[ 0 ] ];

					if ( morphAttribute !== undefined ) {

						this.morphTargetInfluences = [];
						this.morphTargetDictionary = {};

						for ( m = 0, ml = morphAttribute.length; m < ml; m ++ ) {

							name = morphAttribute[ m ].name || String( m );

							this.morphTargetInfluences.push( 0 );
							this.morphTargetDictionary[ name ] = m;

						}

					}

				}

			} else {

				var morphTargets = geometry.morphTargets;

				if ( morphTargets !== undefined && morphTargets.length > 0 ) {

					this.morphTargetInfluences = [];
					this.morphTargetDictionary = {};

					for ( m = 0, ml = morphTargets.length; m < ml; m ++ ) {

						name = morphTargets[ m ].name || String( m );

						this.morphTargetInfluences.push( 0 );
						this.morphTargetDictionary[ name ] = m;

					}

				}

			}

		},

		raycast: ( function () {

			var inverseMatrix = new Matrix4();
			var ray = new Ray();
			var sphere = new Sphere();

			var vA = new Vector3();
			var vB = new Vector3();
			var vC = new Vector3();

			var tempA = new Vector3();
			var tempB = new Vector3();
			var tempC = new Vector3();

			var uvA = new Vector2();
			var uvB = new Vector2();
			var uvC = new Vector2();

			var barycoord = new Vector3();

			var intersectionPoint = new Vector3();
			var intersectionPointWorld = new Vector3();

			function uvIntersection( point, p1, p2, p3, uv1, uv2, uv3 ) {

				Triangle.barycoordFromPoint( point, p1, p2, p3, barycoord );

				uv1.multiplyScalar( barycoord.x );
				uv2.multiplyScalar( barycoord.y );
				uv3.multiplyScalar( barycoord.z );

				uv1.add( uv2 ).add( uv3 );

				return uv1.clone();

			}

			function checkIntersection( object, raycaster, ray, pA, pB, pC, point ) {

				var intersect;
				var material = object.material;

				if ( material.side === BackSide ) {

					intersect = ray.intersectTriangle( pC, pB, pA, true, point );

				} else {

					intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );

				}

				if ( intersect === null ) return null;

				intersectionPointWorld.copy( point );
				intersectionPointWorld.applyMatrix4( object.matrixWorld );

				var distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );

				if ( distance < raycaster.near || distance > raycaster.far ) return null;

				return {
					distance: distance,
					point: intersectionPointWorld.clone(),
					object: object
				};

			}

			function checkBufferGeometryIntersection( object, raycaster, ray, position, uv, a, b, c ) {

				vA.fromBufferAttribute( position, a );
				vB.fromBufferAttribute( position, b );
				vC.fromBufferAttribute( position, c );

				var intersection = checkIntersection( object, raycaster, ray, vA, vB, vC, intersectionPoint );

				if ( intersection ) {

					if ( uv ) {

						uvA.fromBufferAttribute( uv, a );
						uvB.fromBufferAttribute( uv, b );
						uvC.fromBufferAttribute( uv, c );

						intersection.uv = uvIntersection( intersectionPoint, vA, vB, vC, uvA, uvB, uvC );

					}

					intersection.face = new Face3( a, b, c, Triangle.normal( vA, vB, vC ) );
					intersection.faceIndex = a;

				}

				return intersection;

			}

			return function raycast( raycaster, intersects ) {

				var geometry = this.geometry;
				var material = this.material;
				var matrixWorld = this.matrixWorld;

				if ( material === undefined ) return;

				// Checking boundingSphere distance to ray

				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

				sphere.copy( geometry.boundingSphere );
				sphere.applyMatrix4( matrixWorld );

				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;

				//

				inverseMatrix.getInverse( matrixWorld );
				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );

				// Check boundingBox before continuing

				if ( geometry.boundingBox !== null ) {

					if ( ray.intersectsBox( geometry.boundingBox ) === false ) return;

				}

				var intersection;

				if ( geometry.isBufferGeometry ) {

					var a, b, c;
					var index = geometry.index;
					var position = geometry.attributes.position;
					var uv = geometry.attributes.uv;
					var i, l;

					if ( index !== null ) {

						// indexed buffer geometry

						for ( i = 0, l = index.count; i < l; i += 3 ) {

							a = index.getX( i );
							b = index.getX( i + 1 );
							c = index.getX( i + 2 );

							intersection = checkBufferGeometryIntersection( this, raycaster, ray, position, uv, a, b, c );

							if ( intersection ) {

								intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indices buffer semantics
								intersects.push( intersection );

							}

						}

					} else {

						// non-indexed buffer geometry

						for ( i = 0, l = position.count; i < l; i += 3 ) {

							a = i;
							b = i + 1;
							c = i + 2;

							intersection = checkBufferGeometryIntersection( this, raycaster, ray, position, uv, a, b, c );

							if ( intersection ) {

								intersection.index = a; // triangle number in positions buffer semantics
								intersects.push( intersection );

							}

						}

					}

				} else if ( geometry.isGeometry ) {

					var fvA, fvB, fvC;
					var isMultiMaterial = Array.isArray( material );

					var vertices = geometry.vertices;
					var faces = geometry.faces;
					var uvs;

					var faceVertexUvs = geometry.faceVertexUvs[ 0 ];
					if ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;

					for ( var f = 0, fl = faces.length; f < fl; f ++ ) {

						var face = faces[ f ];
						var faceMaterial = isMultiMaterial ? material[ face.materialIndex ] : material;

						if ( faceMaterial === undefined ) continue;

						fvA = vertices[ face.a ];
						fvB = vertices[ face.b ];
						fvC = vertices[ face.c ];

						if ( faceMaterial.morphTargets === true ) {

							var morphTargets = geometry.morphTargets;
							var morphInfluences = this.morphTargetInfluences;

							vA.set( 0, 0, 0 );
							vB.set( 0, 0, 0 );
							vC.set( 0, 0, 0 );

							for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {

								var influence = morphInfluences[ t ];

								if ( influence === 0 ) continue;

								var targets = morphTargets[ t ].vertices;

								vA.addScaledVector( tempA.subVectors( targets[ face.a ], fvA ), influence );
								vB.addScaledVector( tempB.subVectors( targets[ face.b ], fvB ), influence );
								vC.addScaledVector( tempC.subVectors( targets[ face.c ], fvC ), influence );

							}

							vA.add( fvA );
							vB.add( fvB );
							vC.add( fvC );

							fvA = vA;
							fvB = vB;
							fvC = vC;

						}

						intersection = checkIntersection( this, raycaster, ray, fvA, fvB, fvC, intersectionPoint );

						if ( intersection ) {

							if ( uvs && uvs[ f ] ) {

								var uvs_f = uvs[ f ];
								uvA.copy( uvs_f[ 0 ] );
								uvB.copy( uvs_f[ 1 ] );
								uvC.copy( uvs_f[ 2 ] );

								intersection.uv = uvIntersection( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC );

							}

							intersection.face = face;
							intersection.faceIndex = f;
							intersects.push( intersection );

						}

					}

				}

			};

		}() ),

		clone: function () {

			return new this.constructor( this.geometry, this.material ).copy( this );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLBackground( renderer, state, objects, premultipliedAlpha ) {

		var clearColor = new Color( 0x000000 );
		var clearAlpha = 0;

		var planeCamera, planeMesh;
		var boxCamera, boxMesh;

		function render( scene, camera, forceClear ) {

			var background = scene.background;

			if ( background === null ) {

				setClear( clearColor, clearAlpha );

			} else if ( background && background.isColor ) {

				setClear( background, 1 );
				forceClear = true;

			}

			if ( renderer.autoClear || forceClear ) {

				renderer.clear( renderer.autoClearColor, renderer.autoClearDepth, renderer.autoClearStencil );

			}

			if ( background && background.isCubeTexture ) {

				if ( boxCamera === undefined ) {

					boxCamera = new PerspectiveCamera();

					boxMesh = new Mesh(
						new BoxBufferGeometry( 5, 5, 5 ),
						new ShaderMaterial( {
							uniforms: ShaderLib.cube.uniforms,
							vertexShader: ShaderLib.cube.vertexShader,
							fragmentShader: ShaderLib.cube.fragmentShader,
							side: BackSide,
							depthTest: false,
							depthWrite: false,
							fog: false
						} )
					);

				}

				boxCamera.projectionMatrix.copy( camera.projectionMatrix );

				boxCamera.matrixWorld.extractRotation( camera.matrixWorld );
				boxCamera.matrixWorldInverse.getInverse( boxCamera.matrixWorld );

				boxMesh.material.uniforms[ "tCube" ].value = background;
				boxMesh.modelViewMatrix.multiplyMatrices( boxCamera.matrixWorldInverse, boxMesh.matrixWorld );

				objects.update( boxMesh );

				renderer.renderBufferDirect( boxCamera, null, boxMesh.geometry, boxMesh.material, boxMesh, null );

			} else if ( background && background.isTexture ) {

				if ( planeCamera === undefined ) {

					planeCamera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );

					planeMesh = new Mesh(
						new PlaneBufferGeometry( 2, 2 ),
						new MeshBasicMaterial( { depthTest: false, depthWrite: false, fog: false } )
					);

				}

				planeMesh.material.map = background;

				objects.update( planeMesh );

				renderer.renderBufferDirect( planeCamera, null, planeMesh.geometry, planeMesh.material, planeMesh, null );

			}

		}

		function setClear( color, alpha ) {

			state.buffers.color.setClear( color.r, color.g, color.b, alpha, premultipliedAlpha );

		}

		return {

			getClearColor: function () {

				return clearColor;

			},
			setClearColor: function ( color, alpha ) {

				clearColor.set( color );
				clearAlpha = alpha !== undefined ? alpha : 1;
				setClear( clearColor, clearAlpha );

			},
			getClearAlpha: function () {

				return clearAlpha;

			},
			setClearAlpha: function ( alpha ) {

				clearAlpha = alpha;
				setClear( clearColor, clearAlpha );

			},
			render: render

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function painterSortStable( a, b ) {

		if ( a.renderOrder !== b.renderOrder ) {

			return a.renderOrder - b.renderOrder;

		} else if ( a.program && b.program && a.program !== b.program ) {

			return a.program.id - b.program.id;

		} else if ( a.material.id !== b.material.id ) {

			return a.material.id - b.material.id;

		} else if ( a.z !== b.z ) {

			return a.z - b.z;

		} else {

			return a.id - b.id;

		}

	}

	function reversePainterSortStable( a, b ) {

		if ( a.renderOrder !== b.renderOrder ) {

			return a.renderOrder - b.renderOrder;

		} if ( a.z !== b.z ) {

			return b.z - a.z;

		} else {

			return a.id - b.id;

		}

	}

	function WebGLRenderList() {

		var opaque = [];
		var opaqueLastIndex = - 1;

		var transparent = [];
		var transparentLastIndex = - 1;

		function init() {

			opaqueLastIndex = - 1;
			transparentLastIndex = - 1;

		}

		function push( object, geometry, material, z, group ) {

			var array, index;

			// allocate the next position in the appropriate array

			if ( material.transparent ) {

				array = transparent;
				index = ++ transparentLastIndex;

			} else {

				array = opaque;
				index = ++ opaqueLastIndex;

			}

			// recycle existing render item or grow the array

			var renderItem = array[ index ];

			if ( renderItem ) {

				renderItem.id = object.id;
				renderItem.object = object;
				renderItem.geometry = geometry;
				renderItem.material = material;
				renderItem.program = material.program;
				renderItem.renderOrder = object.renderOrder;
				renderItem.z = z;
				renderItem.group = group;

			} else {

				renderItem = {
					id: object.id,
					object: object,
					geometry: geometry,
					material: material,
					program: material.program,
					renderOrder: object.renderOrder,
					z: z,
					group: group
				};

				// assert( index === array.length );
				array.push( renderItem );

			}

		}

		function finish() {

			opaque.length = opaqueLastIndex + 1;
			transparent.length = transparentLastIndex + 1;

		}

		function sort() {

			opaque.sort( painterSortStable );
			transparent.sort( reversePainterSortStable );

		}

		return {
			opaque: opaque,
			transparent: transparent,

			init: init,
			push: push,
			finish: finish,

			sort: sort
		};

	}

	function WebGLRenderLists() {

		var lists = {};

		function get( scene, camera ) {

			var hash = scene.id + ',' + camera.id;
			var list = lists[ hash ];

			if ( list === undefined ) {

				// console.log( 'THREE.WebGLRenderLists:', hash );

				list = new WebGLRenderList();
				lists[ hash ] = list;

			}

			return list;

		}

		function dispose() {

			lists = {};

		}

		return {
			get: get,
			dispose: dispose
		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLIndexedBufferRenderer( gl, extensions, infoRender ) {

		var mode;

		function setMode( value ) {

			mode = value;

		}

		var type, bytesPerElement;

		function setIndex( value ) {

			type = value.type;
			bytesPerElement = value.bytesPerElement;

		}

		function render( start, count ) {

			gl.drawElements( mode, count, type, start * bytesPerElement );

			infoRender.calls ++;
			infoRender.vertices += count;

			if ( mode === gl.TRIANGLES ) infoRender.faces += count / 3;

		}

		function renderInstances( geometry, start, count ) {

			var extension = extensions.get( 'ANGLE_instanced_arrays' );

			if ( extension === null ) {

				console.error( 'THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
				return;

			}

			extension.drawElementsInstancedANGLE( mode, count, type, start * bytesPerElement, geometry.maxInstancedCount );

			infoRender.calls ++;
			infoRender.vertices += count * geometry.maxInstancedCount;

			if ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3;

		}

		//

		this.setMode = setMode;
		this.setIndex = setIndex;
		this.render = render;
		this.renderInstances = renderInstances;

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLBufferRenderer( gl, extensions, infoRender ) {

		var mode;

		function setMode( value ) {

			mode = value;

		}

		function render( start, count ) {

			gl.drawArrays( mode, start, count );

			infoRender.calls ++;
			infoRender.vertices += count;

			if ( mode === gl.TRIANGLES ) infoRender.faces += count / 3;

		}

		function renderInstances( geometry, start, count ) {

			var extension = extensions.get( 'ANGLE_instanced_arrays' );

			if ( extension === null ) {

				console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
				return;

			}

			var position = geometry.attributes.position;

			if ( position.isInterleavedBufferAttribute ) {

				count = position.data.count;

				extension.drawArraysInstancedANGLE( mode, 0, count, geometry.maxInstancedCount );

			} else {

				extension.drawArraysInstancedANGLE( mode, start, count, geometry.maxInstancedCount );

			}

			infoRender.calls ++;
			infoRender.vertices += count * geometry.maxInstancedCount;

			if ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3;

		}

		//

		this.setMode = setMode;
		this.render = render;
		this.renderInstances = renderInstances;

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLGeometries( gl, attributes, infoMemory ) {

		var geometries = {};
		var wireframeAttributes = {};

		function onGeometryDispose( event ) {

			var geometry = event.target;
			var buffergeometry = geometries[ geometry.id ];

			if ( buffergeometry.index !== null ) {

				attributes.remove( buffergeometry.index );

			}

			for ( var name in buffergeometry.attributes ) {

				attributes.remove( buffergeometry.attributes[ name ] );

			}

			geometry.removeEventListener( 'dispose', onGeometryDispose );

			delete geometries[ geometry.id ];

			// TODO Remove duplicate code

			var attribute = wireframeAttributes[ geometry.id ];

			if ( attribute ) {

				attributes.remove( attribute );
				delete wireframeAttributes[ geometry.id ];

			}

			attribute = wireframeAttributes[ buffergeometry.id ];

			if ( attribute ) {

				attributes.remove( attribute );
				delete wireframeAttributes[ buffergeometry.id ];

			}

			//

			infoMemory.geometries --;

		}

		function get( object, geometry ) {

			var buffergeometry = geometries[ geometry.id ];

			if ( buffergeometry ) return buffergeometry;

			geometry.addEventListener( 'dispose', onGeometryDispose );

			if ( geometry.isBufferGeometry ) {

				buffergeometry = geometry;

			} else if ( geometry.isGeometry ) {

				if ( geometry._bufferGeometry === undefined ) {

					geometry._bufferGeometry = new BufferGeometry().setFromObject( object );

				}

				buffergeometry = geometry._bufferGeometry;

			}

			geometries[ geometry.id ] = buffergeometry;

			infoMemory.geometries ++;

			return buffergeometry;

		}

		function update( geometry ) {

			var index = geometry.index;
			var geometryAttributes = geometry.attributes;

			if ( index !== null ) {

				attributes.update( index, gl.ELEMENT_ARRAY_BUFFER );

			}

			for ( var name in geometryAttributes ) {

				attributes.update( geometryAttributes[ name ], gl.ARRAY_BUFFER );

			}

			// morph targets

			var morphAttributes = geometry.morphAttributes;

			for ( var name in morphAttributes ) {

				var array = morphAttributes[ name ];

				for ( var i = 0, l = array.length; i < l; i ++ ) {

					attributes.update( array[ i ], gl.ARRAY_BUFFER );

				}

			}

		}

		function getWireframeAttribute( geometry ) {

			var attribute = wireframeAttributes[ geometry.id ];

			if ( attribute ) return attribute;

			var indices = [];

			var geometryIndex = geometry.index;
			var geometryAttributes = geometry.attributes;

			// console.time( 'wireframe' );

			if ( geometryIndex !== null ) {

				var array = geometryIndex.array;

				for ( var i = 0, l = array.length; i < l; i += 3 ) {

					var a = array[ i + 0 ];
					var b = array[ i + 1 ];
					var c = array[ i + 2 ];

					indices.push( a, b, b, c, c, a );

				}

			} else {

				var array = geometryAttributes.position.array;

				for ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {

					var a = i + 0;
					var b = i + 1;
					var c = i + 2;

					indices.push( a, b, b, c, c, a );

				}

			}

			// console.timeEnd( 'wireframe' );

			attribute = new ( arrayMax( indices ) > 65535 ? Uint32BufferAttribute : Uint16BufferAttribute )( indices, 1 );

			attributes.update( attribute, gl.ELEMENT_ARRAY_BUFFER );

			wireframeAttributes[ geometry.id ] = attribute;

			return attribute;

		}

		return {

			get: get,
			update: update,

			getWireframeAttribute: getWireframeAttribute

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLLights() {

		var lights = {};

		return {

			get: function ( light ) {

				if ( lights[ light.id ] !== undefined ) {

					return lights[ light.id ];

				}

				var uniforms;

				switch ( light.type ) {

					case 'DirectionalLight':
						uniforms = {
							direction: new Vector3(),
							color: new Color(),

							shadow: false,
							shadowBias: 0,
							shadowRadius: 1,
							shadowMapSize: new Vector2()
						};
						break;

					case 'SpotLight':
						uniforms = {
							position: new Vector3(),
							direction: new Vector3(),
							color: new Color(),
							distance: 0,
							coneCos: 0,
							penumbraCos: 0,
							decay: 0,

							shadow: false,
							shadowBias: 0,
							shadowRadius: 1,
							shadowMapSize: new Vector2()
						};
						break;

					case 'PointLight':
						uniforms = {
							position: new Vector3(),
							color: new Color(),
							distance: 0,
							decay: 0,

							shadow: false,
							shadowBias: 0,
							shadowRadius: 1,
							shadowMapSize: new Vector2()
						};
						break;

					case 'HemisphereLight':
						uniforms = {
							direction: new Vector3(),
							skyColor: new Color(),
							groundColor: new Color()
						};
						break;

					case 'RectAreaLight':
						uniforms = {
							color: new Color(),
							position: new Vector3(),
							halfWidth: new Vector3(),
							halfHeight: new Vector3()
							// TODO (abelnation): set RectAreaLight shadow uniforms
						};
						break;

				}

				lights[ light.id ] = uniforms;

				return uniforms;

			}

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLObjects( gl, geometries, infoRender ) {

		var updateList = {};

		function update( object ) {

			var frame = infoRender.frame;

			var geometry = object.geometry;
			var buffergeometry = geometries.get( object, geometry );

			// Update once per frame

			if ( updateList[ buffergeometry.id ] !== frame ) {

				if ( geometry.isGeometry ) {

					buffergeometry.updateFromObject( object );

				}

				geometries.update( buffergeometry );

				updateList[ buffergeometry.id ] = frame;

			}

			return buffergeometry;

		}

		function clear() {

			updateList = {};

		}

		return {

			update: update,
			clear: clear

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function addLineNumbers( string ) {

		var lines = string.split( '\n' );

		for ( var i = 0; i < lines.length; i ++ ) {

			lines[ i ] = ( i + 1 ) + ': ' + lines[ i ];

		}

		return lines.join( '\n' );

	}

	function WebGLShader( gl, type, string ) {

		var shader = gl.createShader( type );

		gl.shaderSource( shader, string );
		gl.compileShader( shader );

		if ( gl.getShaderParameter( shader, gl.COMPILE_STATUS ) === false ) {

			console.error( 'THREE.WebGLShader: Shader couldn\'t compile.' );

		}

		if ( gl.getShaderInfoLog( shader ) !== '' ) {

			console.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === gl.VERTEX_SHADER ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );

		}

		// --enable-privileged-webgl-extension
		// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );

		return shader;

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	var programIdCount = 0;

	function getEncodingComponents( encoding ) {

		switch ( encoding ) {

			case LinearEncoding:
				return [ 'Linear','( value )' ];
			case sRGBEncoding:
				return [ 'sRGB','( value )' ];
			case RGBEEncoding:
				return [ 'RGBE','( value )' ];
			case RGBM7Encoding:
				return [ 'RGBM','( value, 7.0 )' ];
			case RGBM16Encoding:
				return [ 'RGBM','( value, 16.0 )' ];
			case RGBDEncoding:
				return [ 'RGBD','( value, 256.0 )' ];
			case GammaEncoding:
				return [ 'Gamma','( value, float( GAMMA_FACTOR ) )' ];
			default:
				throw new Error( 'unsupported encoding: ' + encoding );

		}

	}

	function getTexelDecodingFunction( functionName, encoding ) {

		var components = getEncodingComponents( encoding );
		return "vec4 " + functionName + "( vec4 value ) { return " + components[ 0 ] + "ToLinear" + components[ 1 ] + "; }";

	}

	function getTexelEncodingFunction( functionName, encoding ) {

		var components = getEncodingComponents( encoding );
		return "vec4 " + functionName + "( vec4 value ) { return LinearTo" + components[ 0 ] + components[ 1 ] + "; }";

	}

	function getToneMappingFunction( functionName, toneMapping ) {

		var toneMappingName;

		switch ( toneMapping ) {

			case LinearToneMapping:
				toneMappingName = "Linear";
				break;

			case ReinhardToneMapping:
				toneMappingName = "Reinhard";
				break;

			case Uncharted2ToneMapping:
				toneMappingName = "Uncharted2";
				break;

			case CineonToneMapping:
				toneMappingName = "OptimizedCineon";
				break;

			default:
				throw new Error( 'unsupported toneMapping: ' + toneMapping );

		}

		return "vec3 " + functionName + "( vec3 color ) { return " + toneMappingName + "ToneMapping( color ); }";

	}

	function generateExtensions( extensions, parameters, rendererExtensions ) {

		extensions = extensions || {};

		var chunks = [
			( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.normalMap || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',
			( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',
			( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',
			( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : ''
		];

		return chunks.filter( filterEmptyLine ).join( '\n' );

	}

	function generateDefines( defines ) {

		var chunks = [];

		for ( var name in defines ) {

			var value = defines[ name ];

			if ( value === false ) continue;

			chunks.push( '#define ' + name + ' ' + value );

		}

		return chunks.join( '\n' );

	}

	function fetchAttributeLocations( gl, program, identifiers ) {

		var attributes = {};

		var n = gl.getProgramParameter( program, gl.ACTIVE_ATTRIBUTES );

		for ( var i = 0; i < n; i ++ ) {

			var info = gl.getActiveAttrib( program, i );
			var name = info.name;

			// console.log("THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:", name, i );

			attributes[ name ] = gl.getAttribLocation( program, name );

		}

		return attributes;

	}

	function filterEmptyLine( string ) {

		return string !== '';

	}

	function replaceLightNums( string, parameters ) {

		return string
			.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )
			.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )
			.replace( /NUM_RECT_AREA_LIGHTS/g, parameters.numRectAreaLights )
			.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )
			.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights );

	}

	function parseIncludes( string ) {

		var pattern = /^[ \t]*#include +<([\w\d.]+)>/gm;

		function replace( match, include ) {

			var replace = ShaderChunk[ include ];

			if ( replace === undefined ) {

				throw new Error( 'Can not resolve #include <' + include + '>' );

			}

			return parseIncludes( replace );

		}

		return string.replace( pattern, replace );

	}

	function unrollLoops( string ) {

		var pattern = /for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;

		function replace( match, start, end, snippet ) {

			var unroll = '';

			for ( var i = parseInt( start ); i < parseInt( end ); i ++ ) {

				unroll += snippet.replace( /\[ i \]/g, '[ ' + i + ' ]' );

			}

			return unroll;

		}

		return string.replace( pattern, replace );

	}

	function WebGLProgram( renderer, code, material, shader, parameters ) {

		var gl = renderer.context;

		var extensions = material.extensions;
		var defines = material.defines;

		var vertexShader = shader.vertexShader;
		var fragmentShader = shader.fragmentShader;

		var shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';

		if ( parameters.shadowMapType === PCFShadowMap ) {

			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';

		} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {

			shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';

		}

		var envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
		var envMapModeDefine = 'ENVMAP_MODE_REFLECTION';
		var envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';

		if ( parameters.envMap ) {

			switch ( material.envMap.mapping ) {

				case CubeReflectionMapping:
				case CubeRefractionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_CUBE';
					break;

				case CubeUVReflectionMapping:
				case CubeUVRefractionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';
					break;

				case EquirectangularReflectionMapping:
				case EquirectangularRefractionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';
					break;

				case SphericalReflectionMapping:
					envMapTypeDefine = 'ENVMAP_TYPE_SPHERE';
					break;

			}

			switch ( material.envMap.mapping ) {

				case CubeRefractionMapping:
				case EquirectangularRefractionMapping:
					envMapModeDefine = 'ENVMAP_MODE_REFRACTION';
					break;

			}

			switch ( material.combine ) {

				case MultiplyOperation:
					envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';
					break;

				case MixOperation:
					envMapBlendingDefine = 'ENVMAP_BLENDING_MIX';
					break;

				case AddOperation:
					envMapBlendingDefine = 'ENVMAP_BLENDING_ADD';
					break;

			}

		}

		var gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;

		// console.log( 'building new program ' );

		//

		var customExtensions = generateExtensions( extensions, parameters, renderer.extensions );

		var customDefines = generateDefines( defines );

		//

		var program = gl.createProgram();

		var prefixVertex, prefixFragment;

		if ( material.isRawShaderMaterial ) {

			prefixVertex = [

				customDefines,

				'\n'

			].filter( filterEmptyLine ).join( '\n' );

			prefixFragment = [

				customExtensions,
				customDefines,

				'\n'

			].filter( filterEmptyLine ).join( '\n' );

		} else {

			prefixVertex = [

				'precision ' + parameters.precision + ' float;',
				'precision ' + parameters.precision + ' int;',

				'#define SHADER_NAME ' + shader.name,

				customDefines,

				parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',

				'#define GAMMA_FACTOR ' + gammaFactorDefine,

				'#define MAX_BONES ' + parameters.maxBones,
				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',

				parameters.map ? '#define USE_MAP' : '',
				parameters.envMap ? '#define USE_ENVMAP' : '',
				parameters.envMap ? '#define ' + envMapModeDefine : '',
				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
				parameters.aoMap ? '#define USE_AOMAP' : '',
				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
				parameters.normalMap ? '#define USE_NORMALMAP' : '',
				parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',
				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
				parameters.vertexColors ? '#define USE_COLOR' : '',

				parameters.flatShading ? '#define FLAT_SHADED' : '',

				parameters.skinning ? '#define USE_SKINNING' : '',
				parameters.useVertexTexture ? '#define BONE_TEXTURE' : '',

				parameters.morphTargets ? '#define USE_MORPHTARGETS' : '',
				parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',
				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
				parameters.flipSided ? '#define FLIP_SIDED' : '',

				'#define NUM_CLIPPING_PLANES ' + parameters.numClippingPlanes,

				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',

				parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',

				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
				parameters.logarithmicDepthBuffer && renderer.extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',

				'uniform mat4 modelMatrix;',
				'uniform mat4 modelViewMatrix;',
				'uniform mat4 projectionMatrix;',
				'uniform mat4 viewMatrix;',
				'uniform mat3 normalMatrix;',
				'uniform vec3 cameraPosition;',

				'attribute vec3 position;',
				'attribute vec3 normal;',
				'attribute vec2 uv;',

				'#ifdef USE_COLOR',

				'	attribute vec3 color;',

				'#endif',

				'#ifdef USE_MORPHTARGETS',

				'	attribute vec3 morphTarget0;',
				'	attribute vec3 morphTarget1;',
				'	attribute vec3 morphTarget2;',
				'	attribute vec3 morphTarget3;',

				'	#ifdef USE_MORPHNORMALS',

				'		attribute vec3 morphNormal0;',
				'		attribute vec3 morphNormal1;',
				'		attribute vec3 morphNormal2;',
				'		attribute vec3 morphNormal3;',

				'	#else',

				'		attribute vec3 morphTarget4;',
				'		attribute vec3 morphTarget5;',
				'		attribute vec3 morphTarget6;',
				'		attribute vec3 morphTarget7;',

				'	#endif',

				'#endif',

				'#ifdef USE_SKINNING',

				'	attribute vec4 skinIndex;',
				'	attribute vec4 skinWeight;',

				'#endif',

				'\n'

			].filter( filterEmptyLine ).join( '\n' );

			prefixFragment = [

				customExtensions,

				'precision ' + parameters.precision + ' float;',
				'precision ' + parameters.precision + ' int;',

				'#define SHADER_NAME ' + shader.name,

				customDefines,

				parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest : '',

				'#define GAMMA_FACTOR ' + gammaFactorDefine,

				( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',
				( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',

				parameters.map ? '#define USE_MAP' : '',
				parameters.envMap ? '#define USE_ENVMAP' : '',
				parameters.envMap ? '#define ' + envMapTypeDefine : '',
				parameters.envMap ? '#define ' + envMapModeDefine : '',
				parameters.envMap ? '#define ' + envMapBlendingDefine : '',
				parameters.lightMap ? '#define USE_LIGHTMAP' : '',
				parameters.aoMap ? '#define USE_AOMAP' : '',
				parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',
				parameters.bumpMap ? '#define USE_BUMPMAP' : '',
				parameters.normalMap ? '#define USE_NORMALMAP' : '',
				parameters.specularMap ? '#define USE_SPECULARMAP' : '',
				parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',
				parameters.metalnessMap ? '#define USE_METALNESSMAP' : '',
				parameters.alphaMap ? '#define USE_ALPHAMAP' : '',
				parameters.vertexColors ? '#define USE_COLOR' : '',

				parameters.gradientMap ? '#define USE_GRADIENTMAP' : '',

				parameters.flatShading ? '#define FLAT_SHADED' : '',

				parameters.doubleSided ? '#define DOUBLE_SIDED' : '',
				parameters.flipSided ? '#define FLIP_SIDED' : '',

				'#define NUM_CLIPPING_PLANES ' + parameters.numClippingPlanes,
				'#define UNION_CLIPPING_PLANES ' + (parameters.numClippingPlanes - parameters.numClipIntersection),

				parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',
				parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',

				parameters.premultipliedAlpha ? "#define PREMULTIPLIED_ALPHA" : '',

				parameters.physicallyCorrectLights ? "#define PHYSICALLY_CORRECT_LIGHTS" : '',

				parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',
				parameters.logarithmicDepthBuffer && renderer.extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',

				parameters.envMap && renderer.extensions.get( 'EXT_shader_texture_lod' ) ? '#define TEXTURE_LOD_EXT' : '',

				'uniform mat4 viewMatrix;',
				'uniform vec3 cameraPosition;',

				( parameters.toneMapping !== NoToneMapping ) ? "#define TONE_MAPPING" : '',
				( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '',  // this code is required here because it is used by the toneMapping() function defined below
				( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( "toneMapping", parameters.toneMapping ) : '',

				parameters.dithering ? '#define DITHERING' : '',

				( parameters.outputEncoding || parameters.mapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ? ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below
				parameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '',
				parameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '',
				parameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '',
				parameters.outputEncoding ? getTexelEncodingFunction( "linearToOutputTexel", parameters.outputEncoding ) : '',

				parameters.depthPacking ? "#define DEPTH_PACKING " + material.depthPacking : '',

				'\n'

			].filter( filterEmptyLine ).join( '\n' );

		}

		vertexShader = parseIncludes( vertexShader );
		vertexShader = replaceLightNums( vertexShader, parameters );

		fragmentShader = parseIncludes( fragmentShader );
		fragmentShader = replaceLightNums( fragmentShader, parameters );

		if ( ! material.isShaderMaterial ) {

			vertexShader = unrollLoops( vertexShader );
			fragmentShader = unrollLoops( fragmentShader );

		}

		var vertexGlsl = prefixVertex + vertexShader;
		var fragmentGlsl = prefixFragment + fragmentShader;

		// console.log( '*VERTEX*', vertexGlsl );
		// console.log( '*FRAGMENT*', fragmentGlsl );

		var glVertexShader = WebGLShader( gl, gl.VERTEX_SHADER, vertexGlsl );
		var glFragmentShader = WebGLShader( gl, gl.FRAGMENT_SHADER, fragmentGlsl );

		gl.attachShader( program, glVertexShader );
		gl.attachShader( program, glFragmentShader );

		// Force a particular attribute to index 0.

		if ( material.index0AttributeName !== undefined ) {

			gl.bindAttribLocation( program, 0, material.index0AttributeName );

		} else if ( parameters.morphTargets === true ) {

			// programs with morphTargets displace position out of attribute 0
			gl.bindAttribLocation( program, 0, 'position' );

		}

		gl.linkProgram( program );

		var programLog = gl.getProgramInfoLog( program );
		var vertexLog = gl.getShaderInfoLog( glVertexShader );
		var fragmentLog = gl.getShaderInfoLog( glFragmentShader );

		var runnable = true;
		var haveDiagnostics = true;

		// console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) );
		// console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) );

		if ( gl.getProgramParameter( program, gl.LINK_STATUS ) === false ) {

			runnable = false;

			console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.VALIDATE_STATUS', gl.getProgramParameter( program, gl.VALIDATE_STATUS ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );

		} else if ( programLog !== '' ) {

			console.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );

		} else if ( vertexLog === '' || fragmentLog === '' ) {

			haveDiagnostics = false;

		}

		if ( haveDiagnostics ) {

			this.diagnostics = {

				runnable: runnable,
				material: material,

				programLog: programLog,

				vertexShader: {

					log: vertexLog,
					prefix: prefixVertex

				},

				fragmentShader: {

					log: fragmentLog,
					prefix: prefixFragment

				}

			};

		}

		// clean up

		gl.deleteShader( glVertexShader );
		gl.deleteShader( glFragmentShader );

		// set up caching for uniform locations

		var cachedUniforms;

		this.getUniforms = function() {

			if ( cachedUniforms === undefined ) {

				cachedUniforms =
					new WebGLUniforms( gl, program, renderer );

			}

			return cachedUniforms;

		};

		// set up caching for attribute locations

		var cachedAttributes;

		this.getAttributes = function() {

			if ( cachedAttributes === undefined ) {

				cachedAttributes = fetchAttributeLocations( gl, program );

			}

			return cachedAttributes;

		};

		// free resource

		this.destroy = function() {

			gl.deleteProgram( program );
			this.program = undefined;

		};

		// DEPRECATED

		Object.defineProperties( this, {

			uniforms: {
				get: function() {

					console.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );
					return this.getUniforms();

				}
			},

			attributes: {
				get: function() {

					console.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );
					return this.getAttributes();

				}
			}

		} );


		//

		this.id = programIdCount ++;
		this.code = code;
		this.usedTimes = 1;
		this.program = program;
		this.vertexShader = glVertexShader;
		this.fragmentShader = glFragmentShader;

		return this;

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLPrograms( renderer, capabilities ) {

		var programs = [];

		var shaderIDs = {
			MeshDepthMaterial: 'depth',
			MeshNormalMaterial: 'normal',
			MeshBasicMaterial: 'basic',
			MeshLambertMaterial: 'lambert',
			MeshPhongMaterial: 'phong',
			MeshToonMaterial: 'phong',
			MeshStandardMaterial: 'physical',
			MeshPhysicalMaterial: 'physical',
			LineBasicMaterial: 'basic',
			LineDashedMaterial: 'dashed',
			PointsMaterial: 'points'
		};

		var parameterNames = [
			"precision", "supportsVertexTextures", "map", "mapEncoding", "envMap", "envMapMode", "envMapEncoding",
			"lightMap", "aoMap", "emissiveMap", "emissiveMapEncoding", "bumpMap", "normalMap", "displacementMap", "specularMap",
			"roughnessMap", "metalnessMap", "gradientMap",
			"alphaMap", "combine", "vertexColors", "fog", "useFog", "fogExp",
			"flatShading", "sizeAttenuation", "logarithmicDepthBuffer", "skinning",
			"maxBones", "useVertexTexture", "morphTargets", "morphNormals",
			"maxMorphTargets", "maxMorphNormals", "premultipliedAlpha",
			"numDirLights", "numPointLights", "numSpotLights", "numHemiLights", "numRectAreaLights",
			"shadowMapEnabled", "shadowMapType", "toneMapping", 'physicallyCorrectLights',
			"alphaTest", "doubleSided", "flipSided", "numClippingPlanes", "numClipIntersection", "depthPacking", "dithering"
		];


		function allocateBones( object ) {

			var skeleton = object.skeleton;
			var bones = skeleton.bones;

			if ( capabilities.floatVertexTextures ) {

				return 1024;

			} else {

				// default for when object is not specified
				// ( for example when prebuilding shader to be used with multiple objects )
				//
				//  - leave some extra space for other uniforms
				//  - limit here is ANGLE's 254 max uniform vectors
				//    (up to 54 should be safe)

				var nVertexUniforms = capabilities.maxVertexUniforms;
				var nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );

				var maxBones = Math.min( nVertexMatrices, bones.length );

				if ( maxBones < bones.length ) {

					console.warn( 'THREE.WebGLRenderer: Skeleton has ' + bones.length + ' bones. This GPU supports ' + maxBones + '.' );
					return 0;

				}

				return maxBones;

			}

		}

		function getTextureEncodingFromMap( map, gammaOverrideLinear ) {

			var encoding;

			if ( ! map ) {

				encoding = LinearEncoding;

			} else if ( map.isTexture ) {

				encoding = map.encoding;

			} else if ( map.isWebGLRenderTarget ) {

				console.warn( "THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead." );
				encoding = map.texture.encoding;

			}

			// add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point.
			if ( encoding === LinearEncoding && gammaOverrideLinear ) {

				encoding = GammaEncoding;

			}

			return encoding;

		}

		this.getParameters = function ( material, lights, fog, nClipPlanes, nClipIntersection, object ) {

			var shaderID = shaderIDs[ material.type ];

			// heuristics to create shader parameters according to lights in the scene
			// (not to blow over maxLights budget)

			var maxBones = object.isSkinnedMesh ? allocateBones( object ) : 0;
			var precision = renderer.getPrecision();

			if ( material.precision !== null ) {

				precision = capabilities.getMaxPrecision( material.precision );

				if ( precision !== material.precision ) {

					console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );

				}

			}

			var currentRenderTarget = renderer.getRenderTarget();

			var parameters = {

				shaderID: shaderID,

				precision: precision,
				supportsVertexTextures: capabilities.vertexTextures,
				outputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ),
				map: !! material.map,
				mapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ),
				envMap: !! material.envMap,
				envMapMode: material.envMap && material.envMap.mapping,
				envMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ),
				envMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ),
				lightMap: !! material.lightMap,
				aoMap: !! material.aoMap,
				emissiveMap: !! material.emissiveMap,
				emissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ),
				bumpMap: !! material.bumpMap,
				normalMap: !! material.normalMap,
				displacementMap: !! material.displacementMap,
				roughnessMap: !! material.roughnessMap,
				metalnessMap: !! material.metalnessMap,
				specularMap: !! material.specularMap,
				alphaMap: !! material.alphaMap,

				gradientMap: !! material.gradientMap,

				combine: material.combine,

				vertexColors: material.vertexColors,

				fog: !! fog,
				useFog: material.fog,
				fogExp: ( fog && fog.isFogExp2 ),

				flatShading: material.shading === FlatShading,

				sizeAttenuation: material.sizeAttenuation,
				logarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,

				skinning: material.skinning && maxBones > 0,
				maxBones: maxBones,
				useVertexTexture: capabilities.floatVertexTextures,

				morphTargets: material.morphTargets,
				morphNormals: material.morphNormals,
				maxMorphTargets: renderer.maxMorphTargets,
				maxMorphNormals: renderer.maxMorphNormals,

				numDirLights: lights.directional.length,
				numPointLights: lights.point.length,
				numSpotLights: lights.spot.length,
				numRectAreaLights: lights.rectArea.length,
				numHemiLights: lights.hemi.length,

				numClippingPlanes: nClipPlanes,
				numClipIntersection: nClipIntersection,

				dithering: material.dithering,

				shadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && lights.shadows.length > 0,
				shadowMapType: renderer.shadowMap.type,

				toneMapping: renderer.toneMapping,
				physicallyCorrectLights: renderer.physicallyCorrectLights,

				premultipliedAlpha: material.premultipliedAlpha,

				alphaTest: material.alphaTest,
				doubleSided: material.side === DoubleSide,
				flipSided: material.side === BackSide,

				depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false

			};

			return parameters;

		};

		this.getProgramCode = function ( material, parameters ) {

			var array = [];

			if ( parameters.shaderID ) {

				array.push( parameters.shaderID );

			} else {

				array.push( material.fragmentShader );
				array.push( material.vertexShader );

			}

			if ( material.defines !== undefined ) {

				for ( var name in material.defines ) {

					array.push( name );
					array.push( material.defines[ name ] );

				}

			}

			for ( var i = 0; i < parameterNames.length; i ++ ) {

				array.push( parameters[ parameterNames[ i ] ] );

			}

			array.push( material.onBeforeCompile.toString() );

			array.push( renderer.gammaOutput );

			return array.join();

		};

		this.acquireProgram = function ( material, shader, parameters, code ) {

			var program;

			// Check if code has been already compiled
			for ( var p = 0, pl = programs.length; p < pl; p ++ ) {

				var programInfo = programs[ p ];

				if ( programInfo.code === code ) {

					program = programInfo;
					++ program.usedTimes;

					break;

				}

			}

			if ( program === undefined ) {

				program = new WebGLProgram( renderer, code, material, shader, parameters );
				programs.push( program );

			}

			return program;

		};

		this.releaseProgram = function ( program ) {

			if ( -- program.usedTimes === 0 ) {

				// Remove from unordered set
				var i = programs.indexOf( program );
				programs[ i ] = programs[ programs.length - 1 ];
				programs.pop();

				// Free WebGL resources
				program.destroy();

			}

		};

		// Exposed for resource monitoring & error feedback via renderer.info:
		this.programs = programs;

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLTextures( _gl, extensions, state, properties, capabilities, paramThreeToGL, infoMemory ) {

		var _isWebGL2 = ( typeof WebGL2RenderingContext !== 'undefined' && _gl instanceof WebGL2RenderingContext );

		//

		function clampToMaxSize( image, maxSize ) {

			if ( image.width > maxSize || image.height > maxSize ) {

				// Warning: Scaling through the canvas will only work with images that use
				// premultiplied alpha.

				var scale = maxSize / Math.max( image.width, image.height );

				var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
				canvas.width = Math.floor( image.width * scale );
				canvas.height = Math.floor( image.height * scale );

				var context = canvas.getContext( '2d' );
				context.drawImage( image, 0, 0, image.width, image.height, 0, 0, canvas.width, canvas.height );

				console.warn( 'THREE.WebGLRenderer: image is too big (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image );

				return canvas;

			}

			return image;

		}

		function isPowerOfTwo( image ) {

			return _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height );

		}

		function makePowerOfTwo( image ) {

			if ( image instanceof HTMLImageElement || image instanceof HTMLCanvasElement ) {

				var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
				canvas.width = _Math.nearestPowerOfTwo( image.width );
				canvas.height = _Math.nearestPowerOfTwo( image.height );

				var context = canvas.getContext( '2d' );
				context.drawImage( image, 0, 0, canvas.width, canvas.height );

				console.warn( 'THREE.WebGLRenderer: image is not power of two (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image );

				return canvas;

			}

			return image;

		}

		function textureNeedsPowerOfTwo( texture ) {

			return ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) ||
				( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter );

		}

		function textureNeedsGenerateMipmaps( texture, isPowerOfTwo ) {

			return texture.generateMipmaps && isPowerOfTwo &&
				texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter;

		}

		// Fallback filters for non-power-of-2 textures

		function filterFallback( f ) {

			if ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) {

				return _gl.NEAREST;

			}

			return _gl.LINEAR;

		}

		//

		function onTextureDispose( event ) {

			var texture = event.target;

			texture.removeEventListener( 'dispose', onTextureDispose );

			deallocateTexture( texture );

			infoMemory.textures --;


		}

		function onRenderTargetDispose( event ) {

			var renderTarget = event.target;

			renderTarget.removeEventListener( 'dispose', onRenderTargetDispose );

			deallocateRenderTarget( renderTarget );

			infoMemory.textures --;

		}

		//

		function deallocateTexture( texture ) {

			var textureProperties = properties.get( texture );

			if ( texture.image && textureProperties.__image__webglTextureCube ) {

				// cube texture

				_gl.deleteTexture( textureProperties.__image__webglTextureCube );

			} else {

				// 2D texture

				if ( textureProperties.__webglInit === undefined ) return;

				_gl.deleteTexture( textureProperties.__webglTexture );

			}

			// remove all webgl properties
			properties.remove( texture );

		}

		function deallocateRenderTarget( renderTarget ) {

			var renderTargetProperties = properties.get( renderTarget );
			var textureProperties = properties.get( renderTarget.texture );

			if ( ! renderTarget ) return;

			if ( textureProperties.__webglTexture !== undefined ) {

				_gl.deleteTexture( textureProperties.__webglTexture );

			}

			if ( renderTarget.depthTexture ) {

				renderTarget.depthTexture.dispose();

			}

			if ( renderTarget.isWebGLRenderTargetCube ) {

				for ( var i = 0; i < 6; i ++ ) {

					_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );
					if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );

				}

			} else {

				_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );
				if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );

			}

			properties.remove( renderTarget.texture );
			properties.remove( renderTarget );

		}

		//



		function setTexture2D( texture, slot ) {

			var textureProperties = properties.get( texture );

			if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

				var image = texture.image;

				if ( image === undefined ) {

					console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined', texture );

				} else if ( image.complete === false ) {

					console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete', texture );

				} else {

					uploadTexture( textureProperties, texture, slot );
					return;

				}

			}

			state.activeTexture( _gl.TEXTURE0 + slot );
			state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );

		}

		function setTextureCube( texture, slot ) {

			var textureProperties = properties.get( texture );

			if ( texture.image.length === 6 ) {

				if ( texture.version > 0 && textureProperties.__version !== texture.version ) {

					if ( ! textureProperties.__image__webglTextureCube ) {

						texture.addEventListener( 'dispose', onTextureDispose );

						textureProperties.__image__webglTextureCube = _gl.createTexture();

						infoMemory.textures ++;

					}

					state.activeTexture( _gl.TEXTURE0 + slot );
					state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );

					_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );

					var isCompressed = ( texture && texture.isCompressedTexture );
					var isDataTexture = ( texture.image[ 0 ] && texture.image[ 0 ].isDataTexture );

					var cubeImage = [];

					for ( var i = 0; i < 6; i ++ ) {

						if ( ! isCompressed && ! isDataTexture ) {

							cubeImage[ i ] = clampToMaxSize( texture.image[ i ], capabilities.maxCubemapSize );

						} else {

							cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];

						}

					}

					var image = cubeImage[ 0 ],
					isPowerOfTwoImage = isPowerOfTwo( image ),
					glFormat = paramThreeToGL( texture.format ),
					glType = paramThreeToGL( texture.type );

					setTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, isPowerOfTwoImage );

					for ( var i = 0; i < 6; i ++ ) {

						if ( ! isCompressed ) {

							if ( isDataTexture ) {

								state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );

							} else {

								state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, glFormat, glType, cubeImage[ i ] );

							}

						} else {

							var mipmap, mipmaps = cubeImage[ i ].mipmaps;

							for ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {

								mipmap = mipmaps[ j ];

								if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {

									if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {

										state.compressedTexImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );

									} else {

										console.warn( "THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()" );

									}

								} else {

									state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

								}

							}

						}

					}

					if ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) {

						_gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );

					}

					textureProperties.__version = texture.version;

					if ( texture.onUpdate ) texture.onUpdate( texture );

				} else {

					state.activeTexture( _gl.TEXTURE0 + slot );
					state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );

				}

			}

		}

		function setTextureCubeDynamic( texture, slot ) {

			state.activeTexture( _gl.TEXTURE0 + slot );
			state.bindTexture( _gl.TEXTURE_CUBE_MAP, properties.get( texture ).__webglTexture );

		}

		function setTextureParameters( textureType, texture, isPowerOfTwoImage ) {

			var extension;

			if ( isPowerOfTwoImage ) {

				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, paramThreeToGL( texture.wrapS ) );
				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, paramThreeToGL( texture.wrapT ) );

				_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, paramThreeToGL( texture.magFilter ) );
				_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, paramThreeToGL( texture.minFilter ) );

			} else {

				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE );
				_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE );

				if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {

					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.', texture );

				}

				_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, filterFallback( texture.magFilter ) );
				_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, filterFallback( texture.minFilter ) );

				if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {

					console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.', texture );

				}

			}

			extension = extensions.get( 'EXT_texture_filter_anisotropic' );

			if ( extension ) {

				if ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;
				if ( texture.type === HalfFloatType && extensions.get( 'OES_texture_half_float_linear' ) === null ) return;

				if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {

					_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );
					properties.get( texture ).__currentAnisotropy = texture.anisotropy;

				}

			}

		}

		function uploadTexture( textureProperties, texture, slot ) {

			if ( textureProperties.__webglInit === undefined ) {

				textureProperties.__webglInit = true;

				texture.addEventListener( 'dispose', onTextureDispose );

				textureProperties.__webglTexture = _gl.createTexture();

				infoMemory.textures ++;

			}

			state.activeTexture( _gl.TEXTURE0 + slot );
			state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );

			_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );
			_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );
			_gl.pixelStorei( _gl.UNPACK_ALIGNMENT, texture.unpackAlignment );

			var image = clampToMaxSize( texture.image, capabilities.maxTextureSize );

			if ( textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( image ) === false ) {

				image = makePowerOfTwo( image );

			}

			var isPowerOfTwoImage = isPowerOfTwo( image ),
			glFormat = paramThreeToGL( texture.format ),
			glType = paramThreeToGL( texture.type );

			setTextureParameters( _gl.TEXTURE_2D, texture, isPowerOfTwoImage );

			var mipmap, mipmaps = texture.mipmaps;

			if ( texture.isDepthTexture ) {

				// populate depth texture with dummy data

				var internalFormat = _gl.DEPTH_COMPONENT;

				if ( texture.type === FloatType ) {

					if ( !_isWebGL2 ) throw new Error('Float Depth Texture only supported in WebGL2.0');
					internalFormat = _gl.DEPTH_COMPONENT32F;

				} else if ( _isWebGL2 ) {

					// WebGL 2.0 requires signed internalformat for glTexImage2D
					internalFormat = _gl.DEPTH_COMPONENT16;

				}

				if ( texture.format === DepthFormat && internalFormat === _gl.DEPTH_COMPONENT ) {

					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
					// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
					if ( texture.type !== UnsignedShortType && texture.type !== UnsignedIntType ) {

					        console.warn( 'THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.' );

						texture.type = UnsignedShortType;
						glType = paramThreeToGL( texture.type );

					}

				}

				// Depth stencil textures need the DEPTH_STENCIL internal format
				// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
				if ( texture.format === DepthStencilFormat ) {

					internalFormat = _gl.DEPTH_STENCIL;

					// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
					// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
					// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
					if ( texture.type !== UnsignedInt248Type ) {

						console.warn( 'THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.' );

						texture.type = UnsignedInt248Type;
						glType = paramThreeToGL( texture.type );

					}

				}

				state.texImage2D( _gl.TEXTURE_2D, 0, internalFormat, image.width, image.height, 0, glFormat, glType, null );

			} else if ( texture.isDataTexture ) {

				// use manually created mipmaps if available
				// if there are no manual mipmaps
				// set 0 level mipmap and then use GL to generate other mipmap levels

				if ( mipmaps.length > 0 && isPowerOfTwoImage ) {

					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {

						mipmap = mipmaps[ i ];
						state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

					}

					texture.generateMipmaps = false;

				} else {

					state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, image.width, image.height, 0, glFormat, glType, image.data );

				}

			} else if ( texture.isCompressedTexture ) {

				for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {

					mipmap = mipmaps[ i ];

					if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {

						if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {

							state.compressedTexImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );

						} else {

							console.warn( "THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()" );

						}

					} else {

						state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );

					}

				}

			} else {

				// regular Texture (image, video, canvas)

				// use manually created mipmaps if available
				// if there are no manual mipmaps
				// set 0 level mipmap and then use GL to generate other mipmap levels

				if ( mipmaps.length > 0 && isPowerOfTwoImage ) {

					for ( var i = 0, il = mipmaps.length; i < il; i ++ ) {

						mipmap = mipmaps[ i ];
						state.texImage2D( _gl.TEXTURE_2D, i, glFormat, glFormat, glType, mipmap );

					}

					texture.generateMipmaps = false;

				} else {

					state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, glFormat, glType, image );

				}

			}

			if ( textureNeedsGenerateMipmaps( texture, isPowerOfTwoImage ) ) _gl.generateMipmap( _gl.TEXTURE_2D );

			textureProperties.__version = texture.version;

			if ( texture.onUpdate ) texture.onUpdate( texture );

		}

		// Render targets

		// Setup storage for target texture and bind it to correct framebuffer
		function setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) {

			var glFormat = paramThreeToGL( renderTarget.texture.format );
			var glType = paramThreeToGL( renderTarget.texture.type );
			state.texImage2D( textureTarget, 0, glFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );
			_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
			_gl.framebufferTexture2D( _gl.FRAMEBUFFER, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );
			_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );

		}

		// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
		function setupRenderBufferStorage( renderbuffer, renderTarget ) {

			_gl.bindRenderbuffer( _gl.RENDERBUFFER, renderbuffer );

			if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {

				_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_COMPONENT16, renderTarget.width, renderTarget.height );
				_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );

			} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {

				_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height );
				_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );

			} else {

				// FIXME: We don't support !depth !stencil
				_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.RGBA4, renderTarget.width, renderTarget.height );

			}

			_gl.bindRenderbuffer( _gl.RENDERBUFFER, null );

		}

		// Setup resources for a Depth Texture for a FBO (needs an extension)
		function setupDepthTexture( framebuffer, renderTarget ) {

			var isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );
			if ( isCube ) throw new Error('Depth Texture with cube render targets is not supported!');

			_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

			if ( !( renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture ) ) {

				throw new Error('renderTarget.depthTexture must be an instance of THREE.DepthTexture');

			}

			// upload an empty depth texture with framebuffer size
			if ( !properties.get( renderTarget.depthTexture ).__webglTexture ||
					renderTarget.depthTexture.image.width !== renderTarget.width ||
					renderTarget.depthTexture.image.height !== renderTarget.height ) {
				renderTarget.depthTexture.image.width = renderTarget.width;
				renderTarget.depthTexture.image.height = renderTarget.height;
				renderTarget.depthTexture.needsUpdate = true;
			}

			setTexture2D( renderTarget.depthTexture, 0 );

			var webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;

			if ( renderTarget.depthTexture.format === DepthFormat ) {

				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );

			} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {

				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );

			} else {

				throw new Error('Unknown depthTexture format')

			}

		}

		// Setup GL resources for a non-texture depth buffer
		function setupDepthRenderbuffer( renderTarget ) {

			var renderTargetProperties = properties.get( renderTarget );

			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );

			if ( renderTarget.depthTexture ) {

				if ( isCube ) throw new Error('target.depthTexture not supported in Cube render targets');

				setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );

			} else {

				if ( isCube ) {

					renderTargetProperties.__webglDepthbuffer = [];

					for ( var i = 0; i < 6; i ++ ) {

						_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[ i ] );
						renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();
						setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );

					}

				} else {

					_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer );
					renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();
					setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );

				}

			}

			_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );

		}

		// Set up GL resources for the render target
		function setupRenderTarget( renderTarget ) {

			var renderTargetProperties = properties.get( renderTarget );
			var textureProperties = properties.get( renderTarget.texture );

			renderTarget.addEventListener( 'dispose', onRenderTargetDispose );

			textureProperties.__webglTexture = _gl.createTexture();

			infoMemory.textures ++;

			var isCube = ( renderTarget.isWebGLRenderTargetCube === true );
			var isTargetPowerOfTwo = isPowerOfTwo( renderTarget );

			// Setup framebuffer

			if ( isCube ) {

				renderTargetProperties.__webglFramebuffer = [];

				for ( var i = 0; i < 6; i ++ ) {

					renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();

				}

			} else {

				renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();

			}

			// Setup color buffer

			if ( isCube ) {

				state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture );
				setTextureParameters( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, isTargetPowerOfTwo );

				for ( var i = 0; i < 6; i ++ ) {

					setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i );

				}

				if ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) _gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );
				state.bindTexture( _gl.TEXTURE_CUBE_MAP, null );

			} else {

				state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );
				setTextureParameters( _gl.TEXTURE_2D, renderTarget.texture, isTargetPowerOfTwo );
				setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D );

				if ( textureNeedsGenerateMipmaps( renderTarget.texture, isTargetPowerOfTwo ) ) _gl.generateMipmap( _gl.TEXTURE_2D );
				state.bindTexture( _gl.TEXTURE_2D, null );

			}

			// Setup depth and stencil buffers

			if ( renderTarget.depthBuffer ) {

				setupDepthRenderbuffer( renderTarget );

			}

		}

		function updateRenderTargetMipmap( renderTarget ) {

			var texture = renderTarget.texture;
			var isTargetPowerOfTwo = isPowerOfTwo( renderTarget );

			if ( textureNeedsGenerateMipmaps( texture, isTargetPowerOfTwo ) ) {

				var target = renderTarget.isWebGLRenderTargetCube ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D;
				var webglTexture = properties.get( texture ).__webglTexture;

				state.bindTexture( target, webglTexture );
				_gl.generateMipmap( target );
				state.bindTexture( target, null );

			}

		}

		this.setTexture2D = setTexture2D;
		this.setTextureCube = setTextureCube;
		this.setTextureCubeDynamic = setTextureCubeDynamic;
		this.setupRenderTarget = setupRenderTarget;
		this.updateRenderTargetMipmap = updateRenderTargetMipmap;

	}

	/**
	 * @author fordacious / fordacious.github.io
	 */

	function WebGLProperties() {

		var properties = {};

		function get( object ) {

			var uuid = object.uuid;
			var map = properties[ uuid ];

			if ( map === undefined ) {

				map = {};
				properties[ uuid ] = map;

			}

			return map;

		}

		function remove( object ) {

			delete properties[ object.uuid ];

		}

		function clear() {

			properties = {};

		}

		return {
			get: get,
			remove: remove,
			clear: clear
		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLState( gl, extensions, paramThreeToGL ) {

		function ColorBuffer() {

			var locked = false;

			var color = new Vector4();
			var currentColorMask = null;
			var currentColorClear = new Vector4();

			return {

				setMask: function ( colorMask ) {

					if ( currentColorMask !== colorMask && ! locked ) {

						gl.colorMask( colorMask, colorMask, colorMask, colorMask );
						currentColorMask = colorMask;

					}

				},

				setLocked: function ( lock ) {

					locked = lock;

				},

				setClear: function ( r, g, b, a, premultipliedAlpha ) {

					if ( premultipliedAlpha === true ) {

						r *= a; g *= a; b *= a;

					}

					color.set( r, g, b, a );

					if ( currentColorClear.equals( color ) === false ) {

						gl.clearColor( r, g, b, a );
						currentColorClear.copy( color );

					}

				},

				reset: function () {

					locked = false;

					currentColorMask = null;
					currentColorClear.set( 0, 0, 0, 1 );

				}

			};

		}

		function DepthBuffer() {

			var locked = false;

			var currentDepthMask = null;
			var currentDepthFunc = null;
			var currentDepthClear = null;

			return {

				setTest: function ( depthTest ) {

					if ( depthTest ) {

						enable( gl.DEPTH_TEST );

					} else {

						disable( gl.DEPTH_TEST );

					}

				},

				setMask: function ( depthMask ) {

					if ( currentDepthMask !== depthMask && ! locked ) {

						gl.depthMask( depthMask );
						currentDepthMask = depthMask;

					}

				},

				setFunc: function ( depthFunc ) {

					if ( currentDepthFunc !== depthFunc ) {

						if ( depthFunc ) {

							switch ( depthFunc ) {

								case NeverDepth:

									gl.depthFunc( gl.NEVER );
									break;

								case AlwaysDepth:

									gl.depthFunc( gl.ALWAYS );
									break;

								case LessDepth:

									gl.depthFunc( gl.LESS );
									break;

								case LessEqualDepth:

									gl.depthFunc( gl.LEQUAL );
									break;

								case EqualDepth:

									gl.depthFunc( gl.EQUAL );
									break;

								case GreaterEqualDepth:

									gl.depthFunc( gl.GEQUAL );
									break;

								case GreaterDepth:

									gl.depthFunc( gl.GREATER );
									break;

								case NotEqualDepth:

									gl.depthFunc( gl.NOTEQUAL );
									break;

								default:

									gl.depthFunc( gl.LEQUAL );

							}

						} else {

							gl.depthFunc( gl.LEQUAL );

						}

						currentDepthFunc = depthFunc;

					}

				},

				setLocked: function ( lock ) {

					locked = lock;

				},

				setClear: function ( depth ) {

					if ( currentDepthClear !== depth ) {

						gl.clearDepth( depth );
						currentDepthClear = depth;

					}

				},

				reset: function () {

					locked = false;

					currentDepthMask = null;
					currentDepthFunc = null;
					currentDepthClear = null;

				}

			};

		}

		function StencilBuffer() {

			var locked = false;

			var currentStencilMask = null;
			var currentStencilFunc = null;
			var currentStencilRef = null;
			var currentStencilFuncMask = null;
			var currentStencilFail = null;
			var currentStencilZFail = null;
			var currentStencilZPass = null;
			var currentStencilClear = null;

			return {

				setTest: function ( stencilTest ) {

					if ( stencilTest ) {

						enable( gl.STENCIL_TEST );

					} else {

						disable( gl.STENCIL_TEST );

					}

				},

				setMask: function ( stencilMask ) {

					if ( currentStencilMask !== stencilMask && ! locked ) {

						gl.stencilMask( stencilMask );
						currentStencilMask = stencilMask;

					}

				},

				setFunc: function ( stencilFunc, stencilRef, stencilMask ) {

					if ( currentStencilFunc !== stencilFunc ||
					     currentStencilRef 	!== stencilRef 	||
					     currentStencilFuncMask !== stencilMask ) {

						gl.stencilFunc( stencilFunc, stencilRef, stencilMask );

						currentStencilFunc = stencilFunc;
						currentStencilRef = stencilRef;
						currentStencilFuncMask = stencilMask;

					}

				},

				setOp: function ( stencilFail, stencilZFail, stencilZPass ) {

					if ( currentStencilFail	 !== stencilFail 	||
					     currentStencilZFail !== stencilZFail ||
					     currentStencilZPass !== stencilZPass ) {

						gl.stencilOp( stencilFail, stencilZFail, stencilZPass );

						currentStencilFail = stencilFail;
						currentStencilZFail = stencilZFail;
						currentStencilZPass = stencilZPass;

					}

				},

				setLocked: function ( lock ) {

					locked = lock;

				},

				setClear: function ( stencil ) {

					if ( currentStencilClear !== stencil ) {

						gl.clearStencil( stencil );
						currentStencilClear = stencil;

					}

				},

				reset: function () {

					locked = false;

					currentStencilMask = null;
					currentStencilFunc = null;
					currentStencilRef = null;
					currentStencilFuncMask = null;
					currentStencilFail = null;
					currentStencilZFail = null;
					currentStencilZPass = null;
					currentStencilClear = null;

				}

			};

		}

		//

		var colorBuffer = new ColorBuffer();
		var depthBuffer = new DepthBuffer();
		var stencilBuffer = new StencilBuffer();

		var maxVertexAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );
		var newAttributes = new Uint8Array( maxVertexAttributes );
		var enabledAttributes = new Uint8Array( maxVertexAttributes );
		var attributeDivisors = new Uint8Array( maxVertexAttributes );

		var capabilities = {};

		var compressedTextureFormats = null;

		var currentBlending = null;
		var currentBlendEquation = null;
		var currentBlendSrc = null;
		var currentBlendDst = null;
		var currentBlendEquationAlpha = null;
		var currentBlendSrcAlpha = null;
		var currentBlendDstAlpha = null;
		var currentPremultipledAlpha = false;

		var currentFlipSided = null;
		var currentCullFace = null;

		var currentLineWidth = null;

		var currentPolygonOffsetFactor = null;
		var currentPolygonOffsetUnits = null;

		var currentScissorTest = null;

		var maxTextures = gl.getParameter( gl.MAX_COMBINED_TEXTURE_IMAGE_UNITS );

		var version = parseFloat( /^WebGL\ ([0-9])/.exec( gl.getParameter( gl.VERSION ) )[ 1 ] );
		var lineWidthAvailable = parseFloat( version ) >= 1.0;

		var currentTextureSlot = null;
		var currentBoundTextures = {};

		var currentScissor = new Vector4();
		var currentViewport = new Vector4();

		function createTexture( type, target, count ) {

			var data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.
			var texture = gl.createTexture();

			gl.bindTexture( type, texture );
			gl.texParameteri( type, gl.TEXTURE_MIN_FILTER, gl.NEAREST );
			gl.texParameteri( type, gl.TEXTURE_MAG_FILTER, gl.NEAREST );

			for ( var i = 0; i < count; i ++ ) {

				gl.texImage2D( target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data );

			}

			return texture;

		}

		var emptyTextures = {};
		emptyTextures[ gl.TEXTURE_2D ] = createTexture( gl.TEXTURE_2D, gl.TEXTURE_2D, 1 );
		emptyTextures[ gl.TEXTURE_CUBE_MAP ] = createTexture( gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6 );

		//

		function init() {

			colorBuffer.setClear( 0, 0, 0, 1 );
			depthBuffer.setClear( 1 );
			stencilBuffer.setClear( 0 );

			enable( gl.DEPTH_TEST );
			depthBuffer.setFunc( LessEqualDepth );

			setFlipSided( false );
			setCullFace( CullFaceBack );
			enable( gl.CULL_FACE );

			enable( gl.BLEND );
			setBlending( NormalBlending );

		}

		function initAttributes() {

			for ( var i = 0, l = newAttributes.length; i < l; i ++ ) {

				newAttributes[ i ] = 0;

			}

		}

		function enableAttribute( attribute ) {

			newAttributes[ attribute ] = 1;

			if ( enabledAttributes[ attribute ] === 0 ) {

				gl.enableVertexAttribArray( attribute );
				enabledAttributes[ attribute ] = 1;

			}

			if ( attributeDivisors[ attribute ] !== 0 ) {

				var extension = extensions.get( 'ANGLE_instanced_arrays' );

				extension.vertexAttribDivisorANGLE( attribute, 0 );
				attributeDivisors[ attribute ] = 0;

			}

		}

		function enableAttributeAndDivisor( attribute, meshPerAttribute ) {

			newAttributes[ attribute ] = 1;

			if ( enabledAttributes[ attribute ] === 0 ) {

				gl.enableVertexAttribArray( attribute );
				enabledAttributes[ attribute ] = 1;

			}

			if ( attributeDivisors[ attribute ] !== meshPerAttribute ) {

				var extension = extensions.get( 'ANGLE_instanced_arrays' );

				extension.vertexAttribDivisorANGLE( attribute, meshPerAttribute );
				attributeDivisors[ attribute ] = meshPerAttribute;

			}

		}

		function disableUnusedAttributes() {

			for ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) {

				if ( enabledAttributes[ i ] !== newAttributes[ i ] ) {

					gl.disableVertexAttribArray( i );
					enabledAttributes[ i ] = 0;

				}

			}

		}

		function enable( id ) {

			if ( capabilities[ id ] !== true ) {

				gl.enable( id );
				capabilities[ id ] = true;

			}

		}

		function disable( id ) {

			if ( capabilities[ id ] !== false ) {

				gl.disable( id );
				capabilities[ id ] = false;

			}

		}

		function getCompressedTextureFormats() {

			if ( compressedTextureFormats === null ) {

				compressedTextureFormats = [];

				if ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||
				     extensions.get( 'WEBGL_compressed_texture_s3tc' ) ||
				     extensions.get( 'WEBGL_compressed_texture_etc1' ) ) {

					var formats = gl.getParameter( gl.COMPRESSED_TEXTURE_FORMATS );

					for ( var i = 0; i < formats.length; i ++ ) {

						compressedTextureFormats.push( formats[ i ] );

					}

				}

			}

			return compressedTextureFormats;

		}

		function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {

			if ( blending !== NoBlending ) {

				enable( gl.BLEND );

			} else {

				disable( gl.BLEND );

			}

			if ( ( blending !== CustomBlending ) && ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) ) {

				if ( blending === AdditiveBlending ) {

					if ( premultipliedAlpha ) {

						gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
						gl.blendFuncSeparate( gl.ONE, gl.ONE, gl.ONE, gl.ONE );

					} else {

						gl.blendEquation( gl.FUNC_ADD );
						gl.blendFunc( gl.SRC_ALPHA, gl.ONE );

					}

				} else if ( blending === SubtractiveBlending ) {

					if ( premultipliedAlpha ) {

						gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
						gl.blendFuncSeparate( gl.ZERO, gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ONE_MINUS_SRC_ALPHA );

					} else {

						gl.blendEquation( gl.FUNC_ADD );
						gl.blendFunc( gl.ZERO, gl.ONE_MINUS_SRC_COLOR );

					}

				} else if ( blending === MultiplyBlending ) {

					if ( premultipliedAlpha ) {

						gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
						gl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA );

					} else {

						gl.blendEquation( gl.FUNC_ADD );
						gl.blendFunc( gl.ZERO, gl.SRC_COLOR );

					}

				} else {

					if ( premultipliedAlpha ) {

						gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
						gl.blendFuncSeparate( gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );

					} else {

						gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );
						gl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );

					}

				}

				currentBlending = blending;
				currentPremultipledAlpha = premultipliedAlpha;

			}

			if ( blending === CustomBlending ) {

				blendEquationAlpha = blendEquationAlpha || blendEquation;
				blendSrcAlpha = blendSrcAlpha || blendSrc;
				blendDstAlpha = blendDstAlpha || blendDst;

				if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {

					gl.blendEquationSeparate( paramThreeToGL( blendEquation ), paramThreeToGL( blendEquationAlpha ) );

					currentBlendEquation = blendEquation;
					currentBlendEquationAlpha = blendEquationAlpha;

				}

				if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {

					gl.blendFuncSeparate( paramThreeToGL( blendSrc ), paramThreeToGL( blendDst ), paramThreeToGL( blendSrcAlpha ), paramThreeToGL( blendDstAlpha ) );

					currentBlendSrc = blendSrc;
					currentBlendDst = blendDst;
					currentBlendSrcAlpha = blendSrcAlpha;
					currentBlendDstAlpha = blendDstAlpha;

				}

			} else {

				currentBlendEquation = null;
				currentBlendSrc = null;
				currentBlendDst = null;
				currentBlendEquationAlpha = null;
				currentBlendSrcAlpha = null;
				currentBlendDstAlpha = null;

			}

		}

		function setMaterial( material ) {

			material.side === DoubleSide
				? disable( gl.CULL_FACE )
				: enable( gl.CULL_FACE );

			setFlipSided( material.side === BackSide );

			material.transparent === true
				? setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha )
				: setBlending( NoBlending );

			depthBuffer.setFunc( material.depthFunc );
			depthBuffer.setTest( material.depthTest );
			depthBuffer.setMask( material.depthWrite );
			colorBuffer.setMask( material.colorWrite );

			setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );

		}

		//

		function setFlipSided( flipSided ) {

			if ( currentFlipSided !== flipSided ) {

				if ( flipSided ) {

					gl.frontFace( gl.CW );

				} else {

					gl.frontFace( gl.CCW );

				}

				currentFlipSided = flipSided;

			}

		}

		function setCullFace( cullFace ) {

			if ( cullFace !== CullFaceNone ) {

				enable( gl.CULL_FACE );

				if ( cullFace !== currentCullFace ) {

					if ( cullFace === CullFaceBack ) {

						gl.cullFace( gl.BACK );

					} else if ( cullFace === CullFaceFront ) {

						gl.cullFace( gl.FRONT );

					} else {

						gl.cullFace( gl.FRONT_AND_BACK );

					}

				}

			} else {

				disable( gl.CULL_FACE );

			}

			currentCullFace = cullFace;

		}

		function setLineWidth( width ) {

			if ( width !== currentLineWidth ) {

				if ( lineWidthAvailable ) gl.lineWidth( width );

				currentLineWidth = width;

			}

		}

		function setPolygonOffset( polygonOffset, factor, units ) {

			if ( polygonOffset ) {

				enable( gl.POLYGON_OFFSET_FILL );

				if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {

					gl.polygonOffset( factor, units );

					currentPolygonOffsetFactor = factor;
					currentPolygonOffsetUnits = units;

				}

			} else {

				disable( gl.POLYGON_OFFSET_FILL );

			}

		}

		function getScissorTest() {

			return currentScissorTest;

		}

		function setScissorTest( scissorTest ) {

			currentScissorTest = scissorTest;

			if ( scissorTest ) {

				enable( gl.SCISSOR_TEST );

			} else {

				disable( gl.SCISSOR_TEST );

			}

		}

		// texture

		function activeTexture( webglSlot ) {

			if ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1;

			if ( currentTextureSlot !== webglSlot ) {

				gl.activeTexture( webglSlot );
				currentTextureSlot = webglSlot;

			}

		}

		function bindTexture( webglType, webglTexture ) {

			if ( currentTextureSlot === null ) {

				activeTexture();

			}

			var boundTexture = currentBoundTextures[ currentTextureSlot ];

			if ( boundTexture === undefined ) {

				boundTexture = { type: undefined, texture: undefined };
				currentBoundTextures[ currentTextureSlot ] = boundTexture;

			}

			if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {

				gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );

				boundTexture.type = webglType;
				boundTexture.texture = webglTexture;

			}

		}

		function compressedTexImage2D() {

			try {

				gl.compressedTexImage2D.apply( gl, arguments );

			} catch ( error ) {

				console.error( 'THREE.WebGLState:', error );

			}

		}

		function texImage2D() {

			try {

				gl.texImage2D.apply( gl, arguments );

			} catch ( error ) {

				console.error( 'THREE.WebGLState:', error );

			}

		}

		//

		function scissor( scissor ) {

			if ( currentScissor.equals( scissor ) === false ) {

				gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );
				currentScissor.copy( scissor );

			}

		}

		function viewport( viewport ) {

			if ( currentViewport.equals( viewport ) === false ) {

				gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );
				currentViewport.copy( viewport );

			}

		}

		//

		function reset() {

			for ( var i = 0; i < enabledAttributes.length; i ++ ) {

				if ( enabledAttributes[ i ] === 1 ) {

					gl.disableVertexAttribArray( i );
					enabledAttributes[ i ] = 0;

				}

			}

			capabilities = {};

			compressedTextureFormats = null;

			currentTextureSlot = null;
			currentBoundTextures = {};

			currentBlending = null;

			currentFlipSided = null;
			currentCullFace = null;

			colorBuffer.reset();
			depthBuffer.reset();
			stencilBuffer.reset();

		}

		return {

			buffers: {
				color: colorBuffer,
				depth: depthBuffer,
				stencil: stencilBuffer
			},

			init: init,
			initAttributes: initAttributes,
			enableAttribute: enableAttribute,
			enableAttributeAndDivisor: enableAttributeAndDivisor,
			disableUnusedAttributes: disableUnusedAttributes,
			enable: enable,
			disable: disable,
			getCompressedTextureFormats: getCompressedTextureFormats,

			setBlending: setBlending,
			setMaterial: setMaterial,

			setFlipSided: setFlipSided,
			setCullFace: setCullFace,

			setLineWidth: setLineWidth,
			setPolygonOffset: setPolygonOffset,

			getScissorTest: getScissorTest,
			setScissorTest: setScissorTest,

			activeTexture: activeTexture,
			bindTexture: bindTexture,
			compressedTexImage2D: compressedTexImage2D,
			texImage2D: texImage2D,

			scissor: scissor,
			viewport: viewport,

			reset: reset

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLCapabilities( gl, extensions, parameters ) {

		var maxAnisotropy;

		function getMaxAnisotropy() {

			if ( maxAnisotropy !== undefined ) return maxAnisotropy;

			var extension = extensions.get( 'EXT_texture_filter_anisotropic' );

			if ( extension !== null ) {

				maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );

			} else {

				maxAnisotropy = 0;

			}

			return maxAnisotropy;

		}

		function getMaxPrecision( precision ) {

			if ( precision === 'highp' ) {

				if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.HIGH_FLOAT ).precision > 0 &&
				     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.HIGH_FLOAT ).precision > 0 ) {

					return 'highp';

				}

				precision = 'mediump';

			}

			if ( precision === 'mediump' ) {

				if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.MEDIUM_FLOAT ).precision > 0 &&
				     gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT ).precision > 0 ) {

					return 'mediump';

				}

			}

			return 'lowp';

		}

		var precision = parameters.precision !== undefined ? parameters.precision : 'highp';
		var maxPrecision = getMaxPrecision( precision );

		if ( maxPrecision !== precision ) {

			console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );
			precision = maxPrecision;

		}

		var logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true && !! extensions.get( 'EXT_frag_depth' );

		var maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );
		var maxVertexTextures = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS );
		var maxTextureSize = gl.getParameter( gl.MAX_TEXTURE_SIZE );
		var maxCubemapSize = gl.getParameter( gl.MAX_CUBE_MAP_TEXTURE_SIZE );

		var maxAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );
		var maxVertexUniforms = gl.getParameter( gl.MAX_VERTEX_UNIFORM_VECTORS );
		var maxVaryings = gl.getParameter( gl.MAX_VARYING_VECTORS );
		var maxFragmentUniforms = gl.getParameter( gl.MAX_FRAGMENT_UNIFORM_VECTORS );

		var vertexTextures = maxVertexTextures > 0;
		var floatFragmentTextures = !! extensions.get( 'OES_texture_float' );
		var floatVertexTextures = vertexTextures && floatFragmentTextures;

		return {

			getMaxAnisotropy: getMaxAnisotropy,
			getMaxPrecision: getMaxPrecision,

			precision: precision,
			logarithmicDepthBuffer: logarithmicDepthBuffer,

			maxTextures: maxTextures,
			maxVertexTextures: maxVertexTextures,
			maxTextureSize: maxTextureSize,
			maxCubemapSize: maxCubemapSize,

			maxAttributes: maxAttributes,
			maxVertexUniforms: maxVertexUniforms,
			maxVaryings: maxVaryings,
			maxFragmentUniforms: maxFragmentUniforms,

			vertexTextures: vertexTextures,
			floatFragmentTextures: floatFragmentTextures,
			floatVertexTextures: floatVertexTextures

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function ArrayCamera( array ) {

		PerspectiveCamera.call( this );

		this.cameras = array || [];

	}

	ArrayCamera.prototype = Object.assign( Object.create( PerspectiveCamera.prototype ), {

		constructor: ArrayCamera,

		isArrayCamera: true

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebVRManager( renderer ) {

		var scope = this;

		var device = null;
		var frameData = null;

		if ( 'VRFrameData' in window ) {

			frameData = new window.VRFrameData();

		}

		var matrixWorldInverse = new Matrix4();

		var standingMatrix = new Matrix4();
		var standingMatrixInverse = new Matrix4();

		var cameraL = new PerspectiveCamera();
		cameraL.bounds = new Vector4( 0.0, 0.0, 0.5, 1.0 );
		cameraL.layers.enable( 1 );

		var cameraR = new PerspectiveCamera();
		cameraR.bounds = new Vector4( 0.5, 0.0, 0.5, 1.0 );
		cameraR.layers.enable( 2 );

		var cameraVR = new ArrayCamera( [ cameraL, cameraR ] );
		cameraVR.layers.enable( 1 );
		cameraVR.layers.enable( 2 );

		//

		var currentSize, currentPixelRatio;

		function onVRDisplayPresentChange() {

			if ( device.isPresenting ) {

				var eyeParameters = device.getEyeParameters( 'left' );
				var renderWidth = eyeParameters.renderWidth;
				var renderHeight = eyeParameters.renderHeight;

				currentPixelRatio = renderer.getPixelRatio();
				currentSize = renderer.getSize();

				renderer.setDrawingBufferSize( renderWidth * 2, renderHeight, 1 );

			} else if ( scope.enabled ) {

				renderer.setDrawingBufferSize( currentSize.width, currentSize.height, currentPixelRatio );

			}

		}

		window.addEventListener( 'vrdisplaypresentchange', onVRDisplayPresentChange, false );

		//

		this.enabled = false;
		this.standing = false;

		this.getDevice = function () {

			return device;

		};

		this.setDevice = function ( value ) {

			if ( value !== undefined ) device = value;

		};

		this.getCamera = function ( camera ) {

			if ( device === null ) return camera;

			device.depthNear = camera.near;
			device.depthFar = camera.far;

			device.getFrameData( frameData );

			//

			var pose = frameData.pose;

			if ( pose.position !== null ) {

				camera.position.fromArray( pose.position );

			} else {

				camera.position.set( 0, 0, 0 );

			}

			if ( pose.orientation !== null ) {

				camera.quaternion.fromArray( pose.orientation );

			}

			camera.updateMatrixWorld();

			var stageParameters = device.stageParameters;

			if ( this.standing && stageParameters ) {

				standingMatrix.fromArray( stageParameters.sittingToStandingTransform );
				standingMatrixInverse.getInverse( standingMatrix );

				camera.matrixWorld.multiply( standingMatrix );
				camera.matrixWorldInverse.multiply( standingMatrixInverse );

			}

			if ( device.isPresenting === false ) return camera;

			//

			cameraVR.matrixWorld.copy( camera.matrixWorld );
			cameraVR.matrixWorldInverse.copy( camera.matrixWorldInverse );

			cameraL.matrixWorldInverse.fromArray( frameData.leftViewMatrix );
			cameraR.matrixWorldInverse.fromArray( frameData.rightViewMatrix );

			if ( this.standing && stageParameters ) {

				cameraL.matrixWorldInverse.multiply( standingMatrixInverse );
				cameraR.matrixWorldInverse.multiply( standingMatrixInverse );

			}

			var parent = camera.parent;

			if ( parent !== null ) {

				matrixWorldInverse.getInverse( parent.matrixWorld );

				cameraL.matrixWorldInverse.multiply( matrixWorldInverse );
				cameraR.matrixWorldInverse.multiply( matrixWorldInverse );

			}

			// envMap and Mirror needs camera.matrixWorld

			cameraL.matrixWorld.getInverse( cameraL.matrixWorldInverse );
			cameraR.matrixWorld.getInverse( cameraR.matrixWorldInverse );

			cameraL.projectionMatrix.fromArray( frameData.leftProjectionMatrix );
			cameraR.projectionMatrix.fromArray( frameData.rightProjectionMatrix );

			// HACK @mrdoob
			// https://github.com/w3c/webvr/issues/203

			cameraVR.projectionMatrix.copy( cameraL.projectionMatrix );

			//

			var layers = device.getLayers();

			if ( layers.length ) {

				var layer = layers[ 0 ];

				if ( layer.leftBounds !== null && layer.leftBounds.length === 4 ) {

					cameraL.bounds.fromArray( layer.leftBounds );

				}

				if ( layer.rightBounds !== null && layer.rightBounds.length === 4 ) {

					cameraR.bounds.fromArray( layer.rightBounds );

				}

			}

			return cameraVR;

		};

		this.getStandingMatrix = function () {

			return standingMatrix;

		};

		this.submitFrame = function () {

			if ( device && device.isPresenting ) device.submitFrame();

		};

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function WebGLExtensions( gl ) {

		var extensions = {};

		return {

			get: function ( name ) {

				if ( extensions[ name ] !== undefined ) {

					return extensions[ name ];

				}

				var extension;

				switch ( name ) {

					case 'WEBGL_depth_texture':
						extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );
						break;

					case 'EXT_texture_filter_anisotropic':
						extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );
						break;

					case 'WEBGL_compressed_texture_s3tc':
						extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );
						break;

					case 'WEBGL_compressed_texture_pvrtc':
						extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );
						break;

					case 'WEBGL_compressed_texture_etc1':
						extension = gl.getExtension( 'WEBGL_compressed_texture_etc1' );
						break;

					default:
						extension = gl.getExtension( name );

				}

				if ( extension === null ) {

					console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );

				}

				extensions[ name ] = extension;

				return extension;

			}

		};

	}

	/**
	 * @author tschw
	 */

	function WebGLClipping() {

		var scope = this,

			globalState = null,
			numGlobalPlanes = 0,
			localClippingEnabled = false,
			renderingShadows = false,

			plane = new Plane(),
			viewNormalMatrix = new Matrix3(),

			uniform = { value: null, needsUpdate: false };

		this.uniform = uniform;
		this.numPlanes = 0;
		this.numIntersection = 0;

		this.init = function( planes, enableLocalClipping, camera ) {

			var enabled =
				planes.length !== 0 ||
				enableLocalClipping ||
				// enable state of previous frame - the clipping code has to
				// run another frame in order to reset the state:
				numGlobalPlanes !== 0 ||
				localClippingEnabled;

			localClippingEnabled = enableLocalClipping;

			globalState = projectPlanes( planes, camera, 0 );
			numGlobalPlanes = planes.length;

			return enabled;

		};

		this.beginShadows = function() {

			renderingShadows = true;
			projectPlanes( null );

		};

		this.endShadows = function() {

			renderingShadows = false;
			resetGlobalState();

		};

		this.setState = function( planes, clipIntersection, clipShadows, camera, cache, fromCache ) {

			if ( ! localClippingEnabled ||
					planes === null || planes.length === 0 ||
					renderingShadows && ! clipShadows ) {
				// there's no local clipping

				if ( renderingShadows ) {
					// there's no global clipping

					projectPlanes( null );

				} else {

					resetGlobalState();
				}

			} else {

				var nGlobal = renderingShadows ? 0 : numGlobalPlanes,
					lGlobal = nGlobal * 4,

					dstArray = cache.clippingState || null;

				uniform.value = dstArray; // ensure unique state

				dstArray = projectPlanes( planes, camera, lGlobal, fromCache );

				for ( var i = 0; i !== lGlobal; ++ i ) {

					dstArray[ i ] = globalState[ i ];

				}

				cache.clippingState = dstArray;
				this.numIntersection = clipIntersection ? this.numPlanes : 0;
				this.numPlanes += nGlobal;

			}


		};

		function resetGlobalState() {

			if ( uniform.value !== globalState ) {

				uniform.value = globalState;
				uniform.needsUpdate = numGlobalPlanes > 0;

			}

			scope.numPlanes = numGlobalPlanes;
			scope.numIntersection = 0;

		}

		function projectPlanes( planes, camera, dstOffset, skipTransform ) {

			var nPlanes = planes !== null ? planes.length : 0,
				dstArray = null;

			if ( nPlanes !== 0 ) {

				dstArray = uniform.value;

				if ( skipTransform !== true || dstArray === null ) {

					var flatSize = dstOffset + nPlanes * 4,
						viewMatrix = camera.matrixWorldInverse;

					viewNormalMatrix.getNormalMatrix( viewMatrix );

					if ( dstArray === null || dstArray.length < flatSize ) {

						dstArray = new Float32Array( flatSize );

					}

					for ( var i = 0, i4 = dstOffset;
										i !== nPlanes; ++ i, i4 += 4 ) {

						plane.copy( planes[ i ] ).
								applyMatrix4( viewMatrix, viewNormalMatrix );

						plane.normal.toArray( dstArray, i4 );
						dstArray[ i4 + 3 ] = plane.constant;

					}

				}

				uniform.value = dstArray;
				uniform.needsUpdate = true;

			}

			scope.numPlanes = nPlanes;
			
			return dstArray;

		}

	}

	// import { Sphere } from '../math/Sphere';
	/**
	 * @author supereggbert / http://www.paulbrunt.co.uk/
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 * @author szimek / https://github.com/szimek/
	 * @author tschw
	 */

	function WebGLRenderer( parameters ) {

		console.log( 'THREE.WebGLRenderer', REVISION );

		parameters = parameters || {};

		var _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ),
			_context = parameters.context !== undefined ? parameters.context : null,

			_alpha = parameters.alpha !== undefined ? parameters.alpha : false,
			_depth = parameters.depth !== undefined ? parameters.depth : true,
			_stencil = parameters.stencil !== undefined ? parameters.stencil : true,
			_antialias = parameters.antialias !== undefined ? parameters.antialias : false,
			_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,
			_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false;

		var lights = [];

		var currentRenderList = null;

		var morphInfluences = new Float32Array( 8 );

		var sprites = [];
		var lensFlares = [];

		// public properties

		this.domElement = _canvas;
		this.context = null;

		// clearing

		this.autoClear = true;
		this.autoClearColor = true;
		this.autoClearDepth = true;
		this.autoClearStencil = true;

		// scene graph

		this.sortObjects = true;

		// user-defined clipping

		this.clippingPlanes = [];
		this.localClippingEnabled = false;

		// physically based shading

		this.gammaFactor = 2.0;	// for backwards compatibility
		this.gammaInput = false;
		this.gammaOutput = false;

		// physical lights

		this.physicallyCorrectLights = false;

		// tone mapping

		this.toneMapping = LinearToneMapping;
		this.toneMappingExposure = 1.0;
		this.toneMappingWhitePoint = 1.0;

		// morphs

		this.maxMorphTargets = 8;
		this.maxMorphNormals = 4;

		// internal properties

		var _this = this,

			// internal state cache

			_currentProgram = null,
			_currentRenderTarget = null,
			_currentFramebuffer = null,
			_currentMaterialId = - 1,
			_currentGeometryProgram = '',

			_currentCamera = null,
			_currentArrayCamera = null,

			_currentScissor = new Vector4(),
			_currentScissorTest = null,

			_currentViewport = new Vector4(),

			//

			_usedTextureUnits = 0,

			//

			_width = _canvas.width,
			_height = _canvas.height,

			_pixelRatio = 1,

			_scissor = new Vector4( 0, 0, _width, _height ),
			_scissorTest = false,

			_viewport = new Vector4( 0, 0, _width, _height ),

			// frustum

			_frustum = new Frustum(),

			// clipping

			_clipping = new WebGLClipping(),
			_clippingEnabled = false,
			_localClippingEnabled = false,

			// camera matrices cache

			_projScreenMatrix = new Matrix4(),

			_vector3 = new Vector3(),
			_matrix4 = new Matrix4(),
			_matrix42 = new Matrix4(),

			// light arrays cache

			_lights = {

				hash: '',

				ambient: [ 0, 0, 0 ],
				directional: [],
				directionalShadowMap: [],
				directionalShadowMatrix: [],
				spot: [],
				spotShadowMap: [],
				spotShadowMatrix: [],
				rectArea: [],
				point: [],
				pointShadowMap: [],
				pointShadowMatrix: [],
				hemi: [],

				shadows: []

			},

			// info

			_infoMemory = {
				geometries: 0,
				textures: 0
			},

			_infoRender = {

				frame: 0,
				calls: 0,
				vertices: 0,
				faces: 0,
				points: 0

			};

		this.info = {

			render: _infoRender,
			memory: _infoMemory,
			programs: null

		};


		// initialize

		var _gl;

		try {

			var contextAttributes = {
				alpha: _alpha,
				depth: _depth,
				stencil: _stencil,
				antialias: _antialias,
				premultipliedAlpha: _premultipliedAlpha,
				preserveDrawingBuffer: _preserveDrawingBuffer
			};

			_gl = _context || _canvas.getContext( 'webgl', contextAttributes ) || _canvas.getContext( 'experimental-webgl', contextAttributes );

			if ( _gl === null ) {

				if ( _canvas.getContext( 'webgl' ) !== null ) {

					throw 'Error creating WebGL context with your selected attributes.';

				} else {

					throw 'Error creating WebGL context.';

				}

			}

			// Some experimental-webgl implementations do not have getShaderPrecisionFormat

			if ( _gl.getShaderPrecisionFormat === undefined ) {

				_gl.getShaderPrecisionFormat = function () {

					return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };

				};

			}

			_canvas.addEventListener( 'webglcontextlost', onContextLost, false );

		} catch ( error ) {

			console.error( 'THREE.WebGLRenderer: ' + error );

		}

		var extensions = new WebGLExtensions( _gl );

		extensions.get( 'WEBGL_depth_texture' );
		extensions.get( 'OES_texture_float' );
		extensions.get( 'OES_texture_float_linear' );
		extensions.get( 'OES_texture_half_float' );
		extensions.get( 'OES_texture_half_float_linear' );
		extensions.get( 'OES_standard_derivatives' );
		extensions.get( 'ANGLE_instanced_arrays' );

		if ( extensions.get( 'OES_element_index_uint' ) ) {

			BufferGeometry.MaxIndex = 4294967296;

		}

		var capabilities = new WebGLCapabilities( _gl, extensions, parameters );

		var state = new WebGLState( _gl, extensions, paramThreeToGL );

		var properties = new WebGLProperties();
		var textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, paramThreeToGL, _infoMemory );
		var attributes = new WebGLAttributes( _gl );
		var geometries = new WebGLGeometries( _gl, attributes, _infoMemory );
		var objects = new WebGLObjects( _gl, geometries, _infoRender );
		var programCache = new WebGLPrograms( this, capabilities );
		var lightCache = new WebGLLights();
		var renderLists = new WebGLRenderLists();

		var background = new WebGLBackground( this, state, objects, _premultipliedAlpha );
		var vr = new WebVRManager( this );

		this.info.programs = programCache.programs;

		var bufferRenderer = new WebGLBufferRenderer( _gl, extensions, _infoRender );
		var indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, _infoRender );

		//

		function getTargetPixelRatio() {

			return _currentRenderTarget === null ? _pixelRatio : 1;

		}

		function setDefaultGLState() {

			state.init();

			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );
			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );

		}

		function resetGLState() {

			_currentProgram = null;
			_currentCamera = null;

			_currentGeometryProgram = '';
			_currentMaterialId = - 1;

			state.reset();

		}

		setDefaultGLState();

		this.context = _gl;
		this.capabilities = capabilities;
		this.extensions = extensions;
		this.properties = properties;
		this.renderLists = renderLists;
		this.state = state;
		this.vr = vr;

		// shadow map

		var shadowMap = new WebGLShadowMap( this, _lights, objects, capabilities );

		this.shadowMap = shadowMap;


		// Plugins

		var spritePlugin = new SpritePlugin( this, sprites );
		var lensFlarePlugin = new LensFlarePlugin( this, lensFlares );

		// API

		this.getContext = function () {

			return _gl;

		};

		this.getContextAttributes = function () {

			return _gl.getContextAttributes();

		};

		this.forceContextLoss = function () {

			var extension = extensions.get( 'WEBGL_lose_context' );
			if ( extension ) extension.loseContext();

		};

		this.getMaxAnisotropy = function () {

			return capabilities.getMaxAnisotropy();

		};

		this.getPrecision = function () {

			return capabilities.precision;

		};

		this.getPixelRatio = function () {

			return _pixelRatio;

		};

		this.setPixelRatio = function ( value ) {

			if ( value === undefined ) return;

			_pixelRatio = value;

			this.setSize( _width, _height, false );

		};

		this.getSize = function () {

			return {
				width: _width,
				height: _height
			};

		};

		this.setSize = function ( width, height, updateStyle ) {

			var device = vr.getDevice();

			if ( device && device.isPresenting ) {

				console.warn( 'THREE.WebGLRenderer: Can\'t change size while VR device is presenting.' );
				return;

			}

			_width = width;
			_height = height;

			_canvas.width = width * _pixelRatio;
			_canvas.height = height * _pixelRatio;

			if ( updateStyle !== false ) {

				_canvas.style.width = width + 'px';
				_canvas.style.height = height + 'px';

			}

			this.setViewport( 0, 0, width, height );

		};

		this.getDrawingBufferSize = function () {

			return {
				width: _width * _pixelRatio,
				height: _height * _pixelRatio
			};

		};

		this.setDrawingBufferSize = function ( width, height, pixelRatio ) {

			_width = width;
			_height = height;

			_pixelRatio = pixelRatio;

			_canvas.width = width * pixelRatio;
			_canvas.height = height * pixelRatio;

			this.setViewport( 0, 0, width, height );

		};

		this.setViewport = function ( x, y, width, height ) {

			_viewport.set( x, _height - y - height, width, height );
			state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );

		};

		this.setScissor = function ( x, y, width, height ) {

			_scissor.set( x, _height - y - height, width, height );
			state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );

		};

		this.setScissorTest = function ( boolean ) {

			state.setScissorTest( _scissorTest = boolean );

		};

		// Clearing

		this.getClearColor = background.getClearColor;
		this.setClearColor = background.setClearColor;
		this.getClearAlpha = background.getClearAlpha;
		this.setClearAlpha = background.setClearAlpha;

		this.clear = function ( color, depth, stencil ) {

			var bits = 0;

			if ( color === undefined || color ) bits |= _gl.COLOR_BUFFER_BIT;
			if ( depth === undefined || depth ) bits |= _gl.DEPTH_BUFFER_BIT;
			if ( stencil === undefined || stencil ) bits |= _gl.STENCIL_BUFFER_BIT;

			_gl.clear( bits );

		};

		this.clearColor = function () {

			this.clear( true, false, false );

		};

		this.clearDepth = function () {

			this.clear( false, true, false );

		};

		this.clearStencil = function () {

			this.clear( false, false, true );

		};

		this.clearTarget = function ( renderTarget, color, depth, stencil ) {

			this.setRenderTarget( renderTarget );
			this.clear( color, depth, stencil );

		};

		// Reset

		this.resetGLState = resetGLState;

		this.dispose = function () {

			_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );

			renderLists.dispose();

		};

		// Events

		function onContextLost( event ) {

			event.preventDefault();

			resetGLState();
			setDefaultGLState();

			properties.clear();
			objects.clear();

		}

		function onMaterialDispose( event ) {

			var material = event.target;

			material.removeEventListener( 'dispose', onMaterialDispose );

			deallocateMaterial( material );

		}

		// Buffer deallocation

		function deallocateMaterial( material ) {

			releaseMaterialProgramReference( material );

			properties.remove( material );

		}


		function releaseMaterialProgramReference( material ) {

			var programInfo = properties.get( material ).program;

			material.program = undefined;

			if ( programInfo !== undefined ) {

				programCache.releaseProgram( programInfo );

			}

		}

		// Buffer rendering

		function renderObjectImmediate( object, program, material ) {

			object.render( function ( object ) {

				_this.renderBufferImmediate( object, program, material );

			} );

		}

		this.renderBufferImmediate = function ( object, program, material ) {

			state.initAttributes();

			var buffers = properties.get( object );

			if ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();
			if ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();
			if ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();
			if ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();

			var programAttributes = program.getAttributes();

			if ( object.hasPositions ) {

				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.position );
				_gl.bufferData( _gl.ARRAY_BUFFER, object.positionArray, _gl.DYNAMIC_DRAW );

				state.enableAttribute( programAttributes.position );
				_gl.vertexAttribPointer( programAttributes.position, 3, _gl.FLOAT, false, 0, 0 );

			}

			if ( object.hasNormals ) {

				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.normal );

				if ( ! material.isMeshPhongMaterial &&
					! material.isMeshStandardMaterial &&
					! material.isMeshNormalMaterial &&
					material.shading === FlatShading ) {

					for ( var i = 0, l = object.count * 3; i < l; i += 9 ) {

						var array = object.normalArray;

						var nx = ( array[ i + 0 ] + array[ i + 3 ] + array[ i + 6 ] ) / 3;
						var ny = ( array[ i + 1 ] + array[ i + 4 ] + array[ i + 7 ] ) / 3;
						var nz = ( array[ i + 2 ] + array[ i + 5 ] + array[ i + 8 ] ) / 3;

						array[ i + 0 ] = nx;
						array[ i + 1 ] = ny;
						array[ i + 2 ] = nz;

						array[ i + 3 ] = nx;
						array[ i + 4 ] = ny;
						array[ i + 5 ] = nz;

						array[ i + 6 ] = nx;
						array[ i + 7 ] = ny;
						array[ i + 8 ] = nz;

					}

				}

				_gl.bufferData( _gl.ARRAY_BUFFER, object.normalArray, _gl.DYNAMIC_DRAW );

				state.enableAttribute( programAttributes.normal );

				_gl.vertexAttribPointer( programAttributes.normal, 3, _gl.FLOAT, false, 0, 0 );

			}

			if ( object.hasUvs && material.map ) {

				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.uv );
				_gl.bufferData( _gl.ARRAY_BUFFER, object.uvArray, _gl.DYNAMIC_DRAW );

				state.enableAttribute( programAttributes.uv );

				_gl.vertexAttribPointer( attributes.uv, 2, _gl.FLOAT, false, 0, 0 );

			}

			if ( object.hasColors && material.vertexColors !== NoColors ) {

				_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.color );
				_gl.bufferData( _gl.ARRAY_BUFFER, object.colorArray, _gl.DYNAMIC_DRAW );

				state.enableAttribute( programAttributes.color );

				_gl.vertexAttribPointer( programAttributes.color, 3, _gl.FLOAT, false, 0, 0 );

			}

			state.disableUnusedAttributes();

			_gl.drawArrays( _gl.TRIANGLES, 0, object.count );

			object.count = 0;

		};

		function absNumericalSort( a, b ) {

			return Math.abs( b[ 0 ] ) - Math.abs( a[ 0 ] );

		}

		this.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {

			state.setMaterial( material );

			var program = setProgram( camera, fog, material, object );
			var geometryProgram = geometry.id + '_' + program.id + '_' + ( material.wireframe === true );

			var updateBuffers = false;

			if ( geometryProgram !== _currentGeometryProgram ) {

				_currentGeometryProgram = geometryProgram;
				updateBuffers = true;

			}

			// morph targets

			var morphTargetInfluences = object.morphTargetInfluences;

			if ( morphTargetInfluences !== undefined ) {

				// TODO Remove allocations

				var activeInfluences = [];

				for ( var i = 0, l = morphTargetInfluences.length; i < l; i ++ ) {

					var influence = morphTargetInfluences[ i ];
					activeInfluences.push( [ influence, i ] );

				}

				activeInfluences.sort( absNumericalSort );

				if ( activeInfluences.length > 8 ) {

					activeInfluences.length = 8;

				}

				var morphAttributes = geometry.morphAttributes;

				for ( var i = 0, l = activeInfluences.length; i < l; i ++ ) {

					var influence = activeInfluences[ i ];
					morphInfluences[ i ] = influence[ 0 ];

					if ( influence[ 0 ] !== 0 ) {

						var index = influence[ 1 ];

						if ( material.morphTargets === true && morphAttributes.position ) geometry.addAttribute( 'morphTarget' + i, morphAttributes.position[ index ] );
						if ( material.morphNormals === true && morphAttributes.normal ) geometry.addAttribute( 'morphNormal' + i, morphAttributes.normal[ index ] );

					} else {

						if ( material.morphTargets === true ) geometry.removeAttribute( 'morphTarget' + i );
						if ( material.morphNormals === true ) geometry.removeAttribute( 'morphNormal' + i );

					}

				}

				for ( var i = activeInfluences.length, il = morphInfluences.length; i < il; i ++ ) {

					morphInfluences[ i ] = 0.0;

				}

				program.getUniforms().setValue( _gl, 'morphTargetInfluences', morphInfluences );

				updateBuffers = true;

			}

			//

			var index = geometry.index;
			var position = geometry.attributes.position;
			var rangeFactor = 1;

			if ( material.wireframe === true ) {

				index = geometries.getWireframeAttribute( geometry );
				rangeFactor = 2;

			}

			var attribute;
			var renderer = bufferRenderer;

			if ( index !== null ) {

				attribute = attributes.get( index );

				renderer = indexedBufferRenderer;
				renderer.setIndex( attribute );

			}

			if ( updateBuffers ) {

				setupVertexAttributes( material, program, geometry );

				if ( index !== null ) {

					_gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, attribute.buffer );

				}

			}

			//

			var dataCount = 0;

			if ( index !== null ) {

				dataCount = index.count;

			} else if ( position !== undefined ) {

				dataCount = position.count;

			}

			var rangeStart = geometry.drawRange.start * rangeFactor;
			var rangeCount = geometry.drawRange.count * rangeFactor;

			var groupStart = group !== null ? group.start * rangeFactor : 0;
			var groupCount = group !== null ? group.count * rangeFactor : Infinity;

			var drawStart = Math.max( rangeStart, groupStart );
			var drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;

			var drawCount = Math.max( 0, drawEnd - drawStart + 1 );

			if ( drawCount === 0 ) return;

			//

			if ( object.isMesh ) {

				if ( material.wireframe === true ) {

					state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );
					renderer.setMode( _gl.LINES );

				} else {

					switch ( object.drawMode ) {

						case TrianglesDrawMode:
							renderer.setMode( _gl.TRIANGLES );
							break;

						case TriangleStripDrawMode:
							renderer.setMode( _gl.TRIANGLE_STRIP );
							break;

						case TriangleFanDrawMode:
							renderer.setMode( _gl.TRIANGLE_FAN );
							break;

					}

				}


			} else if ( object.isLine ) {

				var lineWidth = material.linewidth;

				if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material

				state.setLineWidth( lineWidth * getTargetPixelRatio() );

				if ( object.isLineSegments ) {

					renderer.setMode( _gl.LINES );

				} else if ( object.isLineLoop ) {

					renderer.setMode( _gl.LINE_LOOP );

				} else {

					renderer.setMode( _gl.LINE_STRIP );

				}

			} else if ( object.isPoints ) {

				renderer.setMode( _gl.POINTS );

			}

			if ( geometry && geometry.isInstancedBufferGeometry ) {

				if ( geometry.maxInstancedCount > 0 ) {

					renderer.renderInstances( geometry, drawStart, drawCount );

				}

			} else {

				renderer.render( drawStart, drawCount );

			}

		};

		function setupVertexAttributes( material, program, geometry, startIndex ) {

			if ( geometry && geometry.isInstancedBufferGeometry ) {

				if ( extensions.get( 'ANGLE_instanced_arrays' ) === null ) {

					console.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );
					return;

				}

			}

			if ( startIndex === undefined ) startIndex = 0;

			state.initAttributes();

			var geometryAttributes = geometry.attributes;

			var programAttributes = program.getAttributes();

			var materialDefaultAttributeValues = material.defaultAttributeValues;

			for ( var name in programAttributes ) {

				var programAttribute = programAttributes[ name ];

				if ( programAttribute >= 0 ) {

					var geometryAttribute = geometryAttributes[ name ];

					if ( geometryAttribute !== undefined ) {

						var normalized = geometryAttribute.normalized;
						var size = geometryAttribute.itemSize;

						var attribute = attributes.get( geometryAttribute );

						var buffer = attribute.buffer;
						var type = attribute.type;
						var bytesPerElement = attribute.bytesPerElement;

						if ( geometryAttribute.isInterleavedBufferAttribute ) {

							var data = geometryAttribute.data;
							var stride = data.stride;
							var offset = geometryAttribute.offset;

							if ( data && data.isInstancedInterleavedBuffer ) {

								state.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute );

								if ( geometry.maxInstancedCount === undefined ) {

									geometry.maxInstancedCount = data.meshPerAttribute * data.count;

								}

							} else {

								state.enableAttribute( programAttribute );

							}

							_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
							_gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * bytesPerElement, ( startIndex * stride + offset ) * bytesPerElement );

						} else {

							if ( geometryAttribute.isInstancedBufferAttribute ) {

								state.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute );

								if ( geometry.maxInstancedCount === undefined ) {

									geometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;

								}

							} else {

								state.enableAttribute( programAttribute );

							}

							_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );
							_gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, startIndex * size * bytesPerElement );

						}

					} else if ( materialDefaultAttributeValues !== undefined ) {

						var value = materialDefaultAttributeValues[ name ];

						if ( value !== undefined ) {

							switch ( value.length ) {

								case 2:
									_gl.vertexAttrib2fv( programAttribute, value );
									break;

								case 3:
									_gl.vertexAttrib3fv( programAttribute, value );
									break;

								case 4:
									_gl.vertexAttrib4fv( programAttribute, value );
									break;

								default:
									_gl.vertexAttrib1fv( programAttribute, value );

							}

						}

					}

				}

			}

			state.disableUnusedAttributes();

		}

		// Compile

		this.compile = function ( scene, camera ) {

			lights = [];

			scene.traverse( function ( object ) {

				if ( object.isLight ) {

					lights.push( object );

				}

			} );

			setupLights( lights, camera );

			scene.traverse( function ( object ) {

				if ( object.material ) {

					if ( Array.isArray( object.material ) ) {

						for ( var i = 0; i < object.material.length; i ++ ) {

							initMaterial( object.material[ i ], scene.fog, object );

						}

					} else {

						initMaterial( object.material, scene.fog, object );

					}

				}

			} );

		};

		// Rendering

		this.animate = function ( callback ) {

			function onFrame() {

				callback();

				( vr.getDevice() || window ).requestAnimationFrame( onFrame );

			}

			( vr.getDevice() || window ).requestAnimationFrame( onFrame );

		};

		this.render = function ( scene, camera, renderTarget, forceClear ) {

			if ( ! ( camera && camera.isCamera ) ) {

				console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );
				return;

			}

			// reset caching for this frame

			_currentGeometryProgram = '';
			_currentMaterialId = - 1;
			_currentCamera = null;

			// update scene graph

			if ( scene.autoUpdate === true ) scene.updateMatrixWorld();

			// update camera matrices and frustum

			if ( camera.parent === null ) camera.updateMatrixWorld();

			if ( vr.enabled ) {

				camera = vr.getCamera( camera );

			}

			_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );
			_frustum.setFromMatrix( _projScreenMatrix );

			lights.length = 0;
			sprites.length = 0;
			lensFlares.length = 0;

			_localClippingEnabled = this.localClippingEnabled;
			_clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera );

			currentRenderList = renderLists.get( scene, camera );
			currentRenderList.init();

			projectObject( scene, camera, _this.sortObjects );

			currentRenderList.finish();

			if ( _this.sortObjects === true ) {

				currentRenderList.sort();

			}

			//

			if ( _clippingEnabled ) _clipping.beginShadows();

			setupShadows( lights );

			shadowMap.render( scene, camera );

			setupLights( lights, camera );

			if ( _clippingEnabled ) _clipping.endShadows();

			//

			_infoRender.frame ++;
			_infoRender.calls = 0;
			_infoRender.vertices = 0;
			_infoRender.faces = 0;
			_infoRender.points = 0;

			if ( renderTarget === undefined ) {

				renderTarget = null;

			}

			this.setRenderTarget( renderTarget );

			//

			background.render( scene, camera, forceClear );

			// render scene

			var opaqueObjects = currentRenderList.opaque;
			var transparentObjects = currentRenderList.transparent;

			if ( scene.overrideMaterial ) {

				var overrideMaterial = scene.overrideMaterial;

				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera, overrideMaterial );
				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera, overrideMaterial );

			} else {

				// opaque pass (front-to-back order)

				if ( opaqueObjects.length ) renderObjects( opaqueObjects, scene, camera );

				// transparent pass (back-to-front order)

				if ( transparentObjects.length ) renderObjects( transparentObjects, scene, camera );

			}

			// custom render plugins (post pass)

			spritePlugin.render( scene, camera );
			lensFlarePlugin.render( scene, camera, _currentViewport );

			// Generate mipmap if we're using any kind of mipmap filtering

			if ( renderTarget ) {

				textures.updateRenderTargetMipmap( renderTarget );

			}

			// Ensure depth buffer writing is enabled so it can be cleared on next render

			state.buffers.depth.setTest( true );
			state.buffers.depth.setMask( true );
			state.buffers.color.setMask( true );

			if ( camera.isArrayCamera ) {

				_this.setScissorTest( false );

			}

			if ( vr.enabled ) {

				vr.submitFrame();

			}

			// _gl.finish();

		};

		/*
		// TODO Duplicated code (Frustum)

		var _sphere = new Sphere();

		function isObjectViewable( object ) {

			var geometry = object.geometry;

			if ( geometry.boundingSphere === null )
				geometry.computeBoundingSphere();

			_sphere.copy( geometry.boundingSphere ).
			applyMatrix4( object.matrixWorld );

			return isSphereViewable( _sphere );

		}

		function isSpriteViewable( sprite ) {

			_sphere.center.set( 0, 0, 0 );
			_sphere.radius = 0.7071067811865476;
			_sphere.applyMatrix4( sprite.matrixWorld );

			return isSphereViewable( _sphere );

		}

		function isSphereViewable( sphere ) {

			if ( ! _frustum.intersectsSphere( sphere ) ) return false;

			var numPlanes = _clipping.numPlanes;

			if ( numPlanes === 0 ) return true;

			var planes = _this.clippingPlanes,

				center = sphere.center,
				negRad = - sphere.radius,
				i = 0;

			do {

				// out when deeper than radius in the negative halfspace
				if ( planes[ i ].distanceToPoint( center ) < negRad ) return false;

			} while ( ++ i !== numPlanes );

			return true;

		}
		*/

		function projectObject( object, camera, sortObjects ) {

			if ( ! object.visible ) return;

			var visible = object.layers.test( camera.layers );

			if ( visible ) {

				if ( object.isLight ) {

					lights.push( object );

				} else if ( object.isSprite ) {

					if ( ! object.frustumCulled || _frustum.intersectsSprite( object ) ) {

						sprites.push( object );

					}

				} else if ( object.isLensFlare ) {

					lensFlares.push( object );

				} else if ( object.isImmediateRenderObject ) {

					if ( sortObjects ) {

						_vector3.setFromMatrixPosition( object.matrixWorld )
							.applyMatrix4( _projScreenMatrix );

					}

					currentRenderList.push( object, null, object.material, _vector3.z, null );

				} else if ( object.isMesh || object.isLine || object.isPoints ) {

					if ( object.isSkinnedMesh ) {

						object.skeleton.update();

					}

					if ( ! object.frustumCulled || _frustum.intersectsObject( object ) ) {

						if ( sortObjects ) {

							_vector3.setFromMatrixPosition( object.matrixWorld )
								.applyMatrix4( _projScreenMatrix );

						}

						var geometry = objects.update( object );
						var material = object.material;

						if ( Array.isArray( material ) ) {

							var groups = geometry.groups;

							for ( var i = 0, l = groups.length; i < l; i ++ ) {

								var group = groups[ i ];
								var groupMaterial = material[ group.materialIndex ];

								if ( groupMaterial && groupMaterial.visible ) {

									currentRenderList.push( object, geometry, groupMaterial, _vector3.z, group );

								}

							}

						} else if ( material.visible ) {

							currentRenderList.push( object, geometry, material, _vector3.z, null );

						}

					}

				}

			}

			var children = object.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				projectObject( children[ i ], camera, sortObjects );

			}

		}

		function renderObjects( renderList, scene, camera, overrideMaterial ) {

			for ( var i = 0, l = renderList.length; i < l; i ++ ) {

				var renderItem = renderList[ i ];

				var object = renderItem.object;
				var geometry = renderItem.geometry;
				var material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;
				var group = renderItem.group;

				if ( camera.isArrayCamera ) {

					_currentArrayCamera = camera;

					var cameras = camera.cameras;

					for ( var j = 0, jl = cameras.length; j < jl; j ++ ) {

						var camera2 = cameras[ j ];

						if ( object.layers.test( camera2.layers ) ) {

							var bounds = camera2.bounds;

							var x = bounds.x * _width;
							var y = bounds.y * _height;
							var width = bounds.z * _width;
							var height = bounds.w * _height;

							_this.setViewport( x, y, width, height );
							_this.setScissor( x, y, width, height );
							_this.setScissorTest( true );

							renderObject( object, scene, camera2, geometry, material, group );

						}

					}

				} else {

					_currentArrayCamera = null;

					renderObject( object, scene, camera, geometry, material, group );

				}

			}

		}

		function renderObject( object, scene, camera, geometry, material, group ) {

			object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );
			object.normalMatrix.getNormalMatrix( object.modelViewMatrix );

			object.onBeforeRender( _this, scene, camera, geometry, material, group );

			if ( object.isImmediateRenderObject ) {

				state.setMaterial( material );

				var program = setProgram( camera, scene.fog, material, object );

				_currentGeometryProgram = '';

				renderObjectImmediate( object, program, material );

			} else {

				_this.renderBufferDirect( camera, scene.fog, geometry, material, object, group );

			}

			object.onAfterRender( _this, scene, camera, geometry, material, group );

		}

		function initMaterial( material, fog, object ) {

			var materialProperties = properties.get( material );

			var parameters = programCache.getParameters(
				material, _lights, fog, _clipping.numPlanes, _clipping.numIntersection, object );

			var code = programCache.getProgramCode( material, parameters );

			var program = materialProperties.program;
			var programChange = true;

			if ( program === undefined ) {

				// new material
				material.addEventListener( 'dispose', onMaterialDispose );

			} else if ( program.code !== code ) {

				// changed glsl or parameters
				releaseMaterialProgramReference( material );

			} else if ( parameters.shaderID !== undefined ) {

				// same glsl and uniform list
				return;

			} else {

				// only rebuild uniform list
				programChange = false;

			}

			if ( programChange ) {

				if ( parameters.shaderID ) {

					var shader = ShaderLib[ parameters.shaderID ];

					materialProperties.shader = {
						name: material.type,
						uniforms: UniformsUtils.clone( shader.uniforms ),
						vertexShader: shader.vertexShader,
						fragmentShader: shader.fragmentShader
					};

				} else {

					materialProperties.shader = {
						name: material.type,
						uniforms: material.uniforms,
						vertexShader: material.vertexShader,
						fragmentShader: material.fragmentShader
					};

				}

				material.onBeforeCompile( materialProperties.shader );

				program = programCache.acquireProgram( material, materialProperties.shader, parameters, code );

				materialProperties.program = program;
				material.program = program;

			}

			var programAttributes = program.getAttributes();

			if ( material.morphTargets ) {

				material.numSupportedMorphTargets = 0;

				for ( var i = 0; i < _this.maxMorphTargets; i ++ ) {

					if ( programAttributes[ 'morphTarget' + i ] >= 0 ) {

						material.numSupportedMorphTargets ++;

					}

				}

			}

			if ( material.morphNormals ) {

				material.numSupportedMorphNormals = 0;

				for ( var i = 0; i < _this.maxMorphNormals; i ++ ) {

					if ( programAttributes[ 'morphNormal' + i ] >= 0 ) {

						material.numSupportedMorphNormals ++;

					}

				}

			}

			var uniforms = materialProperties.shader.uniforms;

			if ( ! material.isShaderMaterial &&
				! material.isRawShaderMaterial ||
				material.clipping === true ) {

				materialProperties.numClippingPlanes = _clipping.numPlanes;
				materialProperties.numIntersection = _clipping.numIntersection;
				uniforms.clippingPlanes = _clipping.uniform;

			}

			materialProperties.fog = fog;

			// store the light setup it was created for

			materialProperties.lightsHash = _lights.hash;

			if ( material.lights ) {

				// wire up the material to this renderer's lighting state

				uniforms.ambientLightColor.value = _lights.ambient;
				uniforms.directionalLights.value = _lights.directional;
				uniforms.spotLights.value = _lights.spot;
				uniforms.rectAreaLights.value = _lights.rectArea;
				uniforms.pointLights.value = _lights.point;
				uniforms.hemisphereLights.value = _lights.hemi;

				uniforms.directionalShadowMap.value = _lights.directionalShadowMap;
				uniforms.directionalShadowMatrix.value = _lights.directionalShadowMatrix;
				uniforms.spotShadowMap.value = _lights.spotShadowMap;
				uniforms.spotShadowMatrix.value = _lights.spotShadowMatrix;
				uniforms.pointShadowMap.value = _lights.pointShadowMap;
				uniforms.pointShadowMatrix.value = _lights.pointShadowMatrix;
				// TODO (abelnation): add area lights shadow info to uniforms

			}

			var progUniforms = materialProperties.program.getUniforms(),
				uniformsList =
					WebGLUniforms.seqWithValue( progUniforms.seq, uniforms );

			materialProperties.uniformsList = uniformsList;

		}

		function setProgram( camera, fog, material, object ) {

			_usedTextureUnits = 0;

			var materialProperties = properties.get( material );

			if ( _clippingEnabled ) {

				if ( _localClippingEnabled || camera !== _currentCamera ) {

					var useCache =
						camera === _currentCamera &&
						material.id === _currentMaterialId;

					// we might want to call this function with some ClippingGroup
					// object instead of the material, once it becomes feasible
					// (#8465, #8379)
					_clipping.setState(
						material.clippingPlanes, material.clipIntersection, material.clipShadows,
						camera, materialProperties, useCache );

				}

			}

			if ( material.needsUpdate === false ) {

				if ( materialProperties.program === undefined ) {

					material.needsUpdate = true;

				} else if ( material.fog && materialProperties.fog !== fog ) {

					material.needsUpdate = true;

				} else if ( material.lights && materialProperties.lightsHash !== _lights.hash ) {

					material.needsUpdate = true;

				} else if ( materialProperties.numClippingPlanes !== undefined &&
					( materialProperties.numClippingPlanes !== _clipping.numPlanes ||
					materialProperties.numIntersection !== _clipping.numIntersection ) ) {

					material.needsUpdate = true;

				}

			}

			if ( material.needsUpdate ) {

				initMaterial( material, fog, object );
				material.needsUpdate = false;

			}

			var refreshProgram = false;
			var refreshMaterial = false;
			var refreshLights = false;

			var program = materialProperties.program,
				p_uniforms = program.getUniforms(),
				m_uniforms = materialProperties.shader.uniforms;

			if ( program.id !== _currentProgram ) {

				_gl.useProgram( program.program );
				_currentProgram = program.id;

				refreshProgram = true;
				refreshMaterial = true;
				refreshLights = true;

			}

			if ( material.id !== _currentMaterialId ) {

				_currentMaterialId = material.id;

				refreshMaterial = true;

			}

			if ( refreshProgram || camera !== _currentCamera ) {

				p_uniforms.setValue( _gl, 'projectionMatrix', camera.projectionMatrix );

				if ( capabilities.logarithmicDepthBuffer ) {

					p_uniforms.setValue( _gl, 'logDepthBufFC',
						2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );

				}

				// Avoid unneeded uniform updates per ArrayCamera's sub-camera

				if ( _currentCamera !== ( _currentArrayCamera || camera ) ) {

					_currentCamera = ( _currentArrayCamera || camera );

					// lighting uniforms depend on the camera so enforce an update
					// now, in case this material supports lights - or later, when
					// the next material that does gets activated:

					refreshMaterial = true;		// set to true on material change
					refreshLights = true;		// remains set until update done

				}

				// load material specific uniforms
				// (shader material also gets them for the sake of genericity)

				if ( material.isShaderMaterial ||
					material.isMeshPhongMaterial ||
					material.isMeshStandardMaterial ||
					material.envMap ) {

					var uCamPos = p_uniforms.map.cameraPosition;

					if ( uCamPos !== undefined ) {

						uCamPos.setValue( _gl,
							_vector3.setFromMatrixPosition( camera.matrixWorld ) );

					}

				}

				if ( material.isMeshPhongMaterial ||
					material.isMeshLambertMaterial ||
					material.isMeshBasicMaterial ||
					material.isMeshStandardMaterial ||
					material.isShaderMaterial ||
					material.skinning ) {

					p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );

				}

			}

			// skinning uniforms must be set even if material didn't change
			// auto-setting of texture unit for bone texture must go before other textures
			// not sure why, but otherwise weird things happen

			if ( material.skinning ) {

				p_uniforms.setOptional( _gl, object, 'bindMatrix' );
				p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );

				var skeleton = object.skeleton;

				if ( skeleton ) {

					var bones = skeleton.bones;

					if ( capabilities.floatVertexTextures ) {

						if ( skeleton.boneTexture === undefined ) {

							// layout (1 matrix = 4 pixels)
							//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
							//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
							//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
							//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
							//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)


							var size = Math.sqrt( bones.length * 4 ); // 4 pixels needed for 1 matrix
							size = _Math.nextPowerOfTwo( Math.ceil( size ) );
							size = Math.max( size, 4 );

							var boneMatrices = new Float32Array( size * size * 4 ); // 4 floats per RGBA pixel
							boneMatrices.set( skeleton.boneMatrices ); // copy current values

							var boneTexture = new DataTexture( boneMatrices, size, size, RGBAFormat, FloatType );

							skeleton.boneMatrices = boneMatrices;
							skeleton.boneTexture = boneTexture;
							skeleton.boneTextureSize = size;

						}

						p_uniforms.setValue( _gl, 'boneTexture', skeleton.boneTexture );
						p_uniforms.setValue( _gl, 'boneTextureSize', skeleton.boneTextureSize );

					} else {

						p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );

					}

				}

			}

			if ( refreshMaterial ) {

				p_uniforms.setValue( _gl, 'toneMappingExposure', _this.toneMappingExposure );
				p_uniforms.setValue( _gl, 'toneMappingWhitePoint', _this.toneMappingWhitePoint );

				if ( material.lights ) {

					// the current material requires lighting info

					// note: all lighting uniforms are always set correctly
					// they simply reference the renderer's state for their
					// values
					//
					// use the current material's .needsUpdate flags to set
					// the GL state when required

					markUniformsLightsNeedsUpdate( m_uniforms, refreshLights );

				}

				// refresh uniforms common to several materials

				if ( fog && material.fog ) {

					refreshUniformsFog( m_uniforms, fog );

				}

				if ( material.isMeshBasicMaterial ||
					material.isMeshLambertMaterial ||
					material.isMeshPhongMaterial ||
					material.isMeshStandardMaterial ||
					material.isMeshNormalMaterial ||
					material.isMeshDepthMaterial ) {

					refreshUniformsCommon( m_uniforms, material );

				}

				// refresh single material specific uniforms

				if ( material.isLineBasicMaterial ) {

					refreshUniformsLine( m_uniforms, material );

				} else if ( material.isLineDashedMaterial ) {

					refreshUniformsLine( m_uniforms, material );
					refreshUniformsDash( m_uniforms, material );

				} else if ( material.isPointsMaterial ) {

					refreshUniformsPoints( m_uniforms, material );

				} else if ( material.isMeshLambertMaterial ) {

					refreshUniformsLambert( m_uniforms, material );

				} else if ( material.isMeshToonMaterial ) {

					refreshUniformsToon( m_uniforms, material );

				} else if ( material.isMeshPhongMaterial ) {

					refreshUniformsPhong( m_uniforms, material );

				} else if ( material.isMeshPhysicalMaterial ) {

					refreshUniformsPhysical( m_uniforms, material );

				} else if ( material.isMeshStandardMaterial ) {

					refreshUniformsStandard( m_uniforms, material );

				} else if ( material.isMeshDepthMaterial ) {

					if ( material.displacementMap ) {

						m_uniforms.displacementMap.value = material.displacementMap;
						m_uniforms.displacementScale.value = material.displacementScale;
						m_uniforms.displacementBias.value = material.displacementBias;

					}

				} else if ( material.isMeshNormalMaterial ) {

					refreshUniformsNormal( m_uniforms, material );

				}

				// RectAreaLight Texture
				// TODO (mrdoob): Find a nicer implementation

				if ( m_uniforms.ltcMat !== undefined ) m_uniforms.ltcMat.value = UniformsLib.LTC_MAT_TEXTURE;
				if ( m_uniforms.ltcMag !== undefined ) m_uniforms.ltcMag.value = UniformsLib.LTC_MAG_TEXTURE;

				WebGLUniforms.upload(
					_gl, materialProperties.uniformsList, m_uniforms, _this );

			}


			// common matrices

			p_uniforms.setValue( _gl, 'modelViewMatrix', object.modelViewMatrix );
			p_uniforms.setValue( _gl, 'normalMatrix', object.normalMatrix );
			p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );

			return program;

		}

		// Uniforms (refresh uniforms objects)

		function refreshUniformsCommon( uniforms, material ) {

			uniforms.opacity.value = material.opacity;

			uniforms.diffuse.value = material.color;

			if ( material.emissive ) {

				uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );

			}

			uniforms.map.value = material.map;
			uniforms.specularMap.value = material.specularMap;
			uniforms.alphaMap.value = material.alphaMap;

			if ( material.lightMap ) {

				uniforms.lightMap.value = material.lightMap;
				uniforms.lightMapIntensity.value = material.lightMapIntensity;

			}

			if ( material.aoMap ) {

				uniforms.aoMap.value = material.aoMap;
				uniforms.aoMapIntensity.value = material.aoMapIntensity;

			}

			// uv repeat and offset setting priorities
			// 1. color map
			// 2. specular map
			// 3. normal map
			// 4. bump map
			// 5. alpha map
			// 6. emissive map

			var uvScaleMap;

			if ( material.map ) {

				uvScaleMap = material.map;

			} else if ( material.specularMap ) {

				uvScaleMap = material.specularMap;

			} else if ( material.displacementMap ) {

				uvScaleMap = material.displacementMap;

			} else if ( material.normalMap ) {

				uvScaleMap = material.normalMap;

			} else if ( material.bumpMap ) {

				uvScaleMap = material.bumpMap;

			} else if ( material.roughnessMap ) {

				uvScaleMap = material.roughnessMap;

			} else if ( material.metalnessMap ) {

				uvScaleMap = material.metalnessMap;

			} else if ( material.alphaMap ) {

				uvScaleMap = material.alphaMap;

			} else if ( material.emissiveMap ) {

				uvScaleMap = material.emissiveMap;

			}

			if ( uvScaleMap !== undefined ) {

				// backwards compatibility
				if ( uvScaleMap.isWebGLRenderTarget ) {

					uvScaleMap = uvScaleMap.texture;

				}

				var offset = uvScaleMap.offset;
				var repeat = uvScaleMap.repeat;

				uniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y );

			}

			uniforms.envMap.value = material.envMap;

			// don't flip CubeTexture envMaps, flip everything else:
			//  WebGLRenderTargetCube will be flipped for backwards compatibility
			//  WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture
			// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future
			uniforms.flipEnvMap.value = ( ! ( material.envMap && material.envMap.isCubeTexture ) ) ? 1 : - 1;

			uniforms.reflectivity.value = material.reflectivity;
			uniforms.refractionRatio.value = material.refractionRatio;

		}

		function refreshUniformsLine( uniforms, material ) {

			uniforms.diffuse.value = material.color;
			uniforms.opacity.value = material.opacity;

		}

		function refreshUniformsDash( uniforms, material ) {

			uniforms.dashSize.value = material.dashSize;
			uniforms.totalSize.value = material.dashSize + material.gapSize;
			uniforms.scale.value = material.scale;

		}

		function refreshUniformsPoints( uniforms, material ) {

			uniforms.diffuse.value = material.color;
			uniforms.opacity.value = material.opacity;
			uniforms.size.value = material.size * _pixelRatio;
			uniforms.scale.value = _height * 0.5;

			uniforms.map.value = material.map;

			if ( material.map !== null ) {

				var offset = material.map.offset;
				var repeat = material.map.repeat;

				uniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y );

			}

		}

		function refreshUniformsFog( uniforms, fog ) {

			uniforms.fogColor.value = fog.color;

			if ( fog.isFog ) {

				uniforms.fogNear.value = fog.near;
				uniforms.fogFar.value = fog.far;

			} else if ( fog.isFogExp2 ) {

				uniforms.fogDensity.value = fog.density;

			}

		}

		function refreshUniformsLambert( uniforms, material ) {

			if ( material.emissiveMap ) {

				uniforms.emissiveMap.value = material.emissiveMap;

			}

		}

		function refreshUniformsPhong( uniforms, material ) {

			uniforms.specular.value = material.specular;
			uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )

			if ( material.emissiveMap ) {

				uniforms.emissiveMap.value = material.emissiveMap;

			}

			if ( material.bumpMap ) {

				uniforms.bumpMap.value = material.bumpMap;
				uniforms.bumpScale.value = material.bumpScale;

			}

			if ( material.normalMap ) {

				uniforms.normalMap.value = material.normalMap;
				uniforms.normalScale.value.copy( material.normalScale );

			}

			if ( material.displacementMap ) {

				uniforms.displacementMap.value = material.displacementMap;
				uniforms.displacementScale.value = material.displacementScale;
				uniforms.displacementBias.value = material.displacementBias;

			}

		}

		function refreshUniformsToon( uniforms, material ) {

			refreshUniformsPhong( uniforms, material );

			if ( material.gradientMap ) {

				uniforms.gradientMap.value = material.gradientMap;

			}

		}

		function refreshUniformsStandard( uniforms, material ) {

			uniforms.roughness.value = material.roughness;
			uniforms.metalness.value = material.metalness;

			if ( material.roughnessMap ) {

				uniforms.roughnessMap.value = material.roughnessMap;

			}

			if ( material.metalnessMap ) {

				uniforms.metalnessMap.value = material.metalnessMap;

			}

			if ( material.emissiveMap ) {

				uniforms.emissiveMap.value = material.emissiveMap;

			}

			if ( material.bumpMap ) {

				uniforms.bumpMap.value = material.bumpMap;
				uniforms.bumpScale.value = material.bumpScale;

			}

			if ( material.normalMap ) {

				uniforms.normalMap.value = material.normalMap;
				uniforms.normalScale.value.copy( material.normalScale );

			}

			if ( material.displacementMap ) {

				uniforms.displacementMap.value = material.displacementMap;
				uniforms.displacementScale.value = material.displacementScale;
				uniforms.displacementBias.value = material.displacementBias;

			}

			if ( material.envMap ) {

				//uniforms.envMap.value = material.envMap; // part of uniforms common
				uniforms.envMapIntensity.value = material.envMapIntensity;

			}

		}

		function refreshUniformsPhysical( uniforms, material ) {

			uniforms.clearCoat.value = material.clearCoat;
			uniforms.clearCoatRoughness.value = material.clearCoatRoughness;

			refreshUniformsStandard( uniforms, material );

		}

		function refreshUniformsNormal( uniforms, material ) {

			if ( material.bumpMap ) {

				uniforms.bumpMap.value = material.bumpMap;
				uniforms.bumpScale.value = material.bumpScale;

			}

			if ( material.normalMap ) {

				uniforms.normalMap.value = material.normalMap;
				uniforms.normalScale.value.copy( material.normalScale );

			}

			if ( material.displacementMap ) {

				uniforms.displacementMap.value = material.displacementMap;
				uniforms.displacementScale.value = material.displacementScale;
				uniforms.displacementBias.value = material.displacementBias;

			}

		}

		// If uniforms are marked as clean, they don't need to be loaded to the GPU.

		function markUniformsLightsNeedsUpdate( uniforms, value ) {

			uniforms.ambientLightColor.needsUpdate = value;

			uniforms.directionalLights.needsUpdate = value;
			uniforms.pointLights.needsUpdate = value;
			uniforms.spotLights.needsUpdate = value;
			uniforms.rectAreaLights.needsUpdate = value;
			uniforms.hemisphereLights.needsUpdate = value;

		}

		// Lighting

		function setupShadows( lights ) {

			var lightShadowsLength = 0;

			for ( var i = 0, l = lights.length; i < l; i ++ ) {

				var light = lights[ i ];

				if ( light.castShadow ) {

					_lights.shadows[ lightShadowsLength ] = light;
					lightShadowsLength ++;

				}

			}

			_lights.shadows.length = lightShadowsLength;

		}

		function setupLights( lights, camera ) {

			var l, ll, light, shadow,
				r = 0, g = 0, b = 0,
				color,
				intensity,
				distance,
				shadowMap,

				viewMatrix = camera.matrixWorldInverse,

				directionalLength = 0,
				pointLength = 0,
				spotLength = 0,
				rectAreaLength = 0,
				hemiLength = 0;

			for ( l = 0, ll = lights.length; l < ll; l ++ ) {

				light = lights[ l ];

				color = light.color;
				intensity = light.intensity;
				distance = light.distance;

				shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;

				if ( light.isAmbientLight ) {

					r += color.r * intensity;
					g += color.g * intensity;
					b += color.b * intensity;

				} else if ( light.isDirectionalLight ) {

					var uniforms = lightCache.get( light );

					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
					_vector3.setFromMatrixPosition( light.target.matrixWorld );
					uniforms.direction.sub( _vector3 );
					uniforms.direction.transformDirection( viewMatrix );

					uniforms.shadow = light.castShadow;

					if ( light.castShadow ) {

						shadow = light.shadow;

						uniforms.shadowBias = shadow.bias;
						uniforms.shadowRadius = shadow.radius;
						uniforms.shadowMapSize = shadow.mapSize;

					}

					_lights.directionalShadowMap[ directionalLength ] = shadowMap;
					_lights.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;
					_lights.directional[ directionalLength ] = uniforms;

					directionalLength ++;

				} else if ( light.isSpotLight ) {

					var uniforms = lightCache.get( light );

					uniforms.position.setFromMatrixPosition( light.matrixWorld );
					uniforms.position.applyMatrix4( viewMatrix );

					uniforms.color.copy( color ).multiplyScalar( intensity );
					uniforms.distance = distance;

					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
					_vector3.setFromMatrixPosition( light.target.matrixWorld );
					uniforms.direction.sub( _vector3 );
					uniforms.direction.transformDirection( viewMatrix );

					uniforms.coneCos = Math.cos( light.angle );
					uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );
					uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;

					uniforms.shadow = light.castShadow;

					if ( light.castShadow ) {

						shadow = light.shadow;

						uniforms.shadowBias = shadow.bias;
						uniforms.shadowRadius = shadow.radius;
						uniforms.shadowMapSize = shadow.mapSize;

					}

					_lights.spotShadowMap[ spotLength ] = shadowMap;
					_lights.spotShadowMatrix[ spotLength ] = light.shadow.matrix;
					_lights.spot[ spotLength ] = uniforms;

					spotLength ++;

				} else if ( light.isRectAreaLight ) {

					var uniforms = lightCache.get( light );

					// (a) intensity controls irradiance of entire light
					uniforms.color
						.copy( color )
						.multiplyScalar( intensity / ( light.width * light.height ) );

					// (b) intensity controls the radiance per light area
					// uniforms.color.copy( color ).multiplyScalar( intensity );

					uniforms.position.setFromMatrixPosition( light.matrixWorld );
					uniforms.position.applyMatrix4( viewMatrix );

					// extract local rotation of light to derive width/height half vectors
					_matrix42.identity();
					_matrix4.copy( light.matrixWorld );
					_matrix4.premultiply( viewMatrix );
					_matrix42.extractRotation( _matrix4 );

					uniforms.halfWidth.set( light.width * 0.5,                0.0, 0.0 );
					uniforms.halfHeight.set(              0.0, light.height * 0.5, 0.0 );

					uniforms.halfWidth.applyMatrix4( _matrix42 );
					uniforms.halfHeight.applyMatrix4( _matrix42 );

					// TODO (abelnation): RectAreaLight distance?
					// uniforms.distance = distance;

					_lights.rectArea[ rectAreaLength ] = uniforms;

					rectAreaLength ++;

				} else if ( light.isPointLight ) {

					var uniforms = lightCache.get( light );

					uniforms.position.setFromMatrixPosition( light.matrixWorld );
					uniforms.position.applyMatrix4( viewMatrix );

					uniforms.color.copy( light.color ).multiplyScalar( light.intensity );
					uniforms.distance = light.distance;
					uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;

					uniforms.shadow = light.castShadow;

					if ( light.castShadow ) {

						shadow = light.shadow;

						uniforms.shadowBias = shadow.bias;
						uniforms.shadowRadius = shadow.radius;
						uniforms.shadowMapSize = shadow.mapSize;

					}

					_lights.pointShadowMap[ pointLength ] = shadowMap;
					_lights.pointShadowMatrix[ pointLength ] = light.shadow.matrix;
					_lights.point[ pointLength ] = uniforms;

					pointLength ++;

				} else if ( light.isHemisphereLight ) {

					var uniforms = lightCache.get( light );

					uniforms.direction.setFromMatrixPosition( light.matrixWorld );
					uniforms.direction.transformDirection( viewMatrix );
					uniforms.direction.normalize();

					uniforms.skyColor.copy( light.color ).multiplyScalar( intensity );
					uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );

					_lights.hemi[ hemiLength ] = uniforms;

					hemiLength ++;

				}

			}

			_lights.ambient[ 0 ] = r;
			_lights.ambient[ 1 ] = g;
			_lights.ambient[ 2 ] = b;

			_lights.directional.length = directionalLength;
			_lights.spot.length = spotLength;
			_lights.rectArea.length = rectAreaLength;
			_lights.point.length = pointLength;
			_lights.hemi.length = hemiLength;

			// TODO (sam-g-steel) why aren't we using join
			_lights.hash = directionalLength + ',' + pointLength + ',' + spotLength + ',' + rectAreaLength + ',' + hemiLength + ',' + _lights.shadows.length;

		}

		// GL state setting

		this.setFaceCulling = function ( cullFace, frontFaceDirection ) {

			state.setCullFace( cullFace );
			state.setFlipSided( frontFaceDirection === FrontFaceDirectionCW );

		};

		// Textures

		function allocTextureUnit() {

			var textureUnit = _usedTextureUnits;

			if ( textureUnit >= capabilities.maxTextures ) {

				console.warn( 'THREE.WebGLRenderer: Trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );

			}

			_usedTextureUnits += 1;

			return textureUnit;

		}

		this.allocTextureUnit = allocTextureUnit;

		// this.setTexture2D = setTexture2D;
		this.setTexture2D = ( function () {

			var warned = false;

			// backwards compatibility: peel texture.texture
			return function setTexture2D( texture, slot ) {

				if ( texture && texture.isWebGLRenderTarget ) {

					if ( ! warned ) {

						console.warn( "THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead." );
						warned = true;

					}

					texture = texture.texture;

				}

				textures.setTexture2D( texture, slot );

			};

		}() );

		this.setTexture = ( function () {

			var warned = false;

			return function setTexture( texture, slot ) {

				if ( ! warned ) {

					console.warn( "THREE.WebGLRenderer: .setTexture is deprecated, use setTexture2D instead." );
					warned = true;

				}

				textures.setTexture2D( texture, slot );

			};

		}() );

		this.setTextureCube = ( function () {

			var warned = false;

			return function setTextureCube( texture, slot ) {

				// backwards compatibility: peel texture.texture
				if ( texture && texture.isWebGLRenderTargetCube ) {

					if ( ! warned ) {

						console.warn( "THREE.WebGLRenderer.setTextureCube: don't use cube render targets as textures. Use their .texture property instead." );
						warned = true;

					}

					texture = texture.texture;

				}

				// currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture
				// TODO: unify these code paths
				if ( ( texture && texture.isCubeTexture ) ||
					( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {

					// CompressedTexture can have Array in image :/

					// this function alone should take care of cube textures
					textures.setTextureCube( texture, slot );

				} else {

					// assumed: texture property of THREE.WebGLRenderTargetCube

					textures.setTextureCubeDynamic( texture, slot );

				}

			};

		}() );

		this.getRenderTarget = function () {

			return _currentRenderTarget;

		};

		this.setRenderTarget = function ( renderTarget ) {

			_currentRenderTarget = renderTarget;

			if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {

				textures.setupRenderTarget( renderTarget );

			}

			var isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );
			var framebuffer;

			if ( renderTarget ) {

				var renderTargetProperties = properties.get( renderTarget );

				if ( isCube ) {

					framebuffer = renderTargetProperties.__webglFramebuffer[ renderTarget.activeCubeFace ];

				} else {

					framebuffer = renderTargetProperties.__webglFramebuffer;

				}

				_currentScissor.copy( renderTarget.scissor );
				_currentScissorTest = renderTarget.scissorTest;

				_currentViewport.copy( renderTarget.viewport );

			} else {

				framebuffer = null;

				_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio );
				_currentScissorTest = _scissorTest;

				_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio );

			}

			if ( _currentFramebuffer !== framebuffer ) {

				_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );
				_currentFramebuffer = framebuffer;

			}

			state.scissor( _currentScissor );
			state.setScissorTest( _currentScissorTest );

			state.viewport( _currentViewport );

			if ( isCube ) {

				var textureProperties = properties.get( renderTarget.texture );
				_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + renderTarget.activeCubeFace, textureProperties.__webglTexture, renderTarget.activeMipMapLevel );

			}

		};

		this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) {

			if ( ! ( renderTarget && renderTarget.isWebGLRenderTarget ) ) {

				console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );
				return;

			}

			var framebuffer = properties.get( renderTarget ).__webglFramebuffer;

			if ( framebuffer ) {

				var restore = false;

				if ( framebuffer !== _currentFramebuffer ) {

					_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );

					restore = true;

				}

				try {

					var texture = renderTarget.texture;
					var textureFormat = texture.format;
					var textureType = texture.type;

					if ( textureFormat !== RGBAFormat && paramThreeToGL( textureFormat ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_FORMAT ) ) {

						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );
						return;

					}

					if ( textureType !== UnsignedByteType && paramThreeToGL( textureType ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_TYPE ) && // IE11, Edge and Chrome Mac < 52 (#9513)
						! ( textureType === FloatType && ( extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox
						! ( textureType === HalfFloatType && extensions.get( 'EXT_color_buffer_half_float' ) ) ) {

						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );
						return;

					}

					if ( _gl.checkFramebufferStatus( _gl.FRAMEBUFFER ) === _gl.FRAMEBUFFER_COMPLETE ) {

						// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)

						if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {

							_gl.readPixels( x, y, width, height, paramThreeToGL( textureFormat ), paramThreeToGL( textureType ), buffer );

						}

					} else {

						console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );

					}

				} finally {

					if ( restore ) {

						_gl.bindFramebuffer( _gl.FRAMEBUFFER, _currentFramebuffer );

					}

				}

			}

		};

		// Map three.js constants to WebGL constants

		function paramThreeToGL( p ) {

			var extension;

			if ( p === RepeatWrapping ) return _gl.REPEAT;
			if ( p === ClampToEdgeWrapping ) return _gl.CLAMP_TO_EDGE;
			if ( p === MirroredRepeatWrapping ) return _gl.MIRRORED_REPEAT;

			if ( p === NearestFilter ) return _gl.NEAREST;
			if ( p === NearestMipMapNearestFilter ) return _gl.NEAREST_MIPMAP_NEAREST;
			if ( p === NearestMipMapLinearFilter ) return _gl.NEAREST_MIPMAP_LINEAR;

			if ( p === LinearFilter ) return _gl.LINEAR;
			if ( p === LinearMipMapNearestFilter ) return _gl.LINEAR_MIPMAP_NEAREST;
			if ( p === LinearMipMapLinearFilter ) return _gl.LINEAR_MIPMAP_LINEAR;

			if ( p === UnsignedByteType ) return _gl.UNSIGNED_BYTE;
			if ( p === UnsignedShort4444Type ) return _gl.UNSIGNED_SHORT_4_4_4_4;
			if ( p === UnsignedShort5551Type ) return _gl.UNSIGNED_SHORT_5_5_5_1;
			if ( p === UnsignedShort565Type ) return _gl.UNSIGNED_SHORT_5_6_5;

			if ( p === ByteType ) return _gl.BYTE;
			if ( p === ShortType ) return _gl.SHORT;
			if ( p === UnsignedShortType ) return _gl.UNSIGNED_SHORT;
			if ( p === IntType ) return _gl.INT;
			if ( p === UnsignedIntType ) return _gl.UNSIGNED_INT;
			if ( p === FloatType ) return _gl.FLOAT;

			if ( p === HalfFloatType ) {

				extension = extensions.get( 'OES_texture_half_float' );

				if ( extension !== null ) return extension.HALF_FLOAT_OES;

			}

			if ( p === AlphaFormat ) return _gl.ALPHA;
			if ( p === RGBFormat ) return _gl.RGB;
			if ( p === RGBAFormat ) return _gl.RGBA;
			if ( p === LuminanceFormat ) return _gl.LUMINANCE;
			if ( p === LuminanceAlphaFormat ) return _gl.LUMINANCE_ALPHA;
			if ( p === DepthFormat ) return _gl.DEPTH_COMPONENT;
			if ( p === DepthStencilFormat ) return _gl.DEPTH_STENCIL;

			if ( p === AddEquation ) return _gl.FUNC_ADD;
			if ( p === SubtractEquation ) return _gl.FUNC_SUBTRACT;
			if ( p === ReverseSubtractEquation ) return _gl.FUNC_REVERSE_SUBTRACT;

			if ( p === ZeroFactor ) return _gl.ZERO;
			if ( p === OneFactor ) return _gl.ONE;
			if ( p === SrcColorFactor ) return _gl.SRC_COLOR;
			if ( p === OneMinusSrcColorFactor ) return _gl.ONE_MINUS_SRC_COLOR;
			if ( p === SrcAlphaFactor ) return _gl.SRC_ALPHA;
			if ( p === OneMinusSrcAlphaFactor ) return _gl.ONE_MINUS_SRC_ALPHA;
			if ( p === DstAlphaFactor ) return _gl.DST_ALPHA;
			if ( p === OneMinusDstAlphaFactor ) return _gl.ONE_MINUS_DST_ALPHA;

			if ( p === DstColorFactor ) return _gl.DST_COLOR;
			if ( p === OneMinusDstColorFactor ) return _gl.ONE_MINUS_DST_COLOR;
			if ( p === SrcAlphaSaturateFactor ) return _gl.SRC_ALPHA_SATURATE;

			if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format ||
				p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {

				extension = extensions.get( 'WEBGL_compressed_texture_s3tc' );

				if ( extension !== null ) {

					if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;
					if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;
					if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;
					if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;

				}

			}

			if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format ||
				p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {

				extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );

				if ( extension !== null ) {

					if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
					if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
					if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
					if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;

				}

			}

			if ( p === RGB_ETC1_Format ) {

				extension = extensions.get( 'WEBGL_compressed_texture_etc1' );

				if ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL;

			}

			if ( p === MinEquation || p === MaxEquation ) {

				extension = extensions.get( 'EXT_blend_minmax' );

				if ( extension !== null ) {

					if ( p === MinEquation ) return extension.MIN_EXT;
					if ( p === MaxEquation ) return extension.MAX_EXT;

				}

			}

			if ( p === UnsignedInt248Type ) {

				extension = extensions.get( 'WEBGL_depth_texture' );

				if ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL;

			}

			return 0;

		}

	}

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function FogExp2 ( color, density ) {

		this.name = '';

		this.color = new Color( color );
		this.density = ( density !== undefined ) ? density : 0.00025;

	}

	FogExp2.prototype.isFogExp2 = true;

	FogExp2.prototype.clone = function () {

		return new FogExp2( this.color.getHex(), this.density );

	};

	FogExp2.prototype.toJSON = function ( meta ) {

		return {
			type: 'FogExp2',
			color: this.color.getHex(),
			density: this.density
		};

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Fog ( color, near, far ) {

		this.name = '';

		this.color = new Color( color );

		this.near = ( near !== undefined ) ? near : 1;
		this.far = ( far !== undefined ) ? far : 1000;

	}

	Fog.prototype.isFog = true;

	Fog.prototype.clone = function () {

		return new Fog( this.color.getHex(), this.near, this.far );

	};

	Fog.prototype.toJSON = function ( meta ) {

		return {
			type: 'Fog',
			color: this.color.getHex(),
			near: this.near,
			far: this.far
		};

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Scene () {

		Object3D.call( this );

		this.type = 'Scene';

		this.background = null;
		this.fog = null;
		this.overrideMaterial = null;

		this.autoUpdate = true; // checked by the renderer

	}

	Scene.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Scene,

		copy: function ( source, recursive ) {

			Object3D.prototype.copy.call( this, source, recursive );

			if ( source.background !== null ) this.background = source.background.clone();
			if ( source.fog !== null ) this.fog = source.fog.clone();
			if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();

			this.autoUpdate = source.autoUpdate;
			this.matrixAutoUpdate = source.matrixAutoUpdate;

			return this;

		},

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			if ( this.background !== null ) data.object.background = this.background.toJSON( meta );
			if ( this.fog !== null ) data.object.fog = this.fog.toJSON();

			return data;

		}

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function LensFlare( texture, size, distance, blending, color ) {

		Object3D.call( this );

		this.lensFlares = [];

		this.positionScreen = new Vector3();
		this.customUpdateCallback = undefined;

		if ( texture !== undefined ) {

			this.add( texture, size, distance, blending, color );

		}

	}

	LensFlare.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: LensFlare,

		isLensFlare: true,

		copy: function ( source ) {

			Object3D.prototype.copy.call( this, source );

			this.positionScreen.copy( source.positionScreen );
			this.customUpdateCallback = source.customUpdateCallback;

			for ( var i = 0, l = source.lensFlares.length; i < l; i ++ ) {

				this.lensFlares.push( source.lensFlares[ i ] );

			}

			return this;

		},

		add: function ( texture, size, distance, blending, color, opacity ) {

			if ( size === undefined ) size = - 1;
			if ( distance === undefined ) distance = 0;
			if ( opacity === undefined ) opacity = 1;
			if ( color === undefined ) color = new Color( 0xffffff );
			if ( blending === undefined ) blending = NormalBlending;

			distance = Math.min( distance, Math.max( 0, distance ) );

			this.lensFlares.push( {
				texture: texture,	// THREE.Texture
				size: size, 		// size in pixels (-1 = use texture.width)
				distance: distance, 	// distance (0-1) from light source (0=at light source)
				x: 0, y: 0, z: 0,	// screen position (-1 => 1) z = 0 is in front z = 1 is back
				scale: 1, 		// scale
				rotation: 0, 		// rotation
				opacity: opacity,	// opacity
				color: color,		// color
				blending: blending	// blending
			} );

		},

		/*
		 * Update lens flares update positions on all flares based on the screen position
		 * Set myLensFlare.customUpdateCallback to alter the flares in your project specific way.
		 */

		updateLensFlares: function () {

			var f, fl = this.lensFlares.length;
			var flare;
			var vecX = - this.positionScreen.x * 2;
			var vecY = - this.positionScreen.y * 2;

			for ( f = 0; f < fl; f ++ ) {

				flare = this.lensFlares[ f ];

				flare.x = this.positionScreen.x + vecX * flare.distance;
				flare.y = this.positionScreen.y + vecY * flare.distance;

				flare.wantedRotation = flare.x * Math.PI * 0.25;
				flare.rotation += ( flare.wantedRotation - flare.rotation ) * 0.25;

			}

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *	uvOffset: new THREE.Vector2(),
	 *	uvScale: new THREE.Vector2()
	 * }
	 */

	function SpriteMaterial( parameters ) {

		Material.call( this );

		this.type = 'SpriteMaterial';

		this.color = new Color( 0xffffff );
		this.map = null;

		this.rotation = 0;

		this.fog = false;
		this.lights = false;

		this.setValues( parameters );

	}

	SpriteMaterial.prototype = Object.create( Material.prototype );
	SpriteMaterial.prototype.constructor = SpriteMaterial;
	SpriteMaterial.prototype.isSpriteMaterial = true;

	SpriteMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );
		this.map = source.map;

		this.rotation = source.rotation;

		return this;

	};

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Sprite( material ) {

		Object3D.call( this );

		this.type = 'Sprite';

		this.material = ( material !== undefined ) ? material : new SpriteMaterial();

	}

	Sprite.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Sprite,

		isSprite: true,

		raycast: ( function () {

			var intersectPoint = new Vector3();
			var worldPosition = new Vector3();
			var worldScale = new Vector3();

			return function raycast( raycaster, intersects ) {

				worldPosition.setFromMatrixPosition( this.matrixWorld );
				raycaster.ray.closestPointToPoint( worldPosition, intersectPoint );

				worldScale.setFromMatrixScale( this.matrixWorld );
				var guessSizeSq = worldScale.x * worldScale.y / 4;

				if ( worldPosition.distanceToSquared( intersectPoint ) > guessSizeSq ) return;

				var distance = raycaster.ray.origin.distanceTo( intersectPoint );

				if ( distance < raycaster.near || distance > raycaster.far ) return;

				intersects.push( {

					distance: distance,
					point: intersectPoint.clone(),
					face: null,
					object: this

				} );

			};

		}() ),

		clone: function () {

			return new this.constructor( this.material ).copy( this );

		}

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	function LOD() {

		Object3D.call( this );

		this.type = 'LOD';

		Object.defineProperties( this, {
			levels: {
				enumerable: true,
				value: []
			}
		} );

	}

	LOD.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: LOD,

		copy: function ( source ) {

			Object3D.prototype.copy.call( this, source, false );

			var levels = source.levels;

			for ( var i = 0, l = levels.length; i < l; i ++ ) {

				var level = levels[ i ];

				this.addLevel( level.object.clone(), level.distance );

			}

			return this;

		},

		addLevel: function ( object, distance ) {

			if ( distance === undefined ) distance = 0;

			distance = Math.abs( distance );

			var levels = this.levels;

			for ( var l = 0; l < levels.length; l ++ ) {

				if ( distance < levels[ l ].distance ) {

					break;

				}

			}

			levels.splice( l, 0, { distance: distance, object: object } );

			this.add( object );

		},

		getObjectForDistance: function ( distance ) {

			var levels = this.levels;

			for ( var i = 1, l = levels.length; i < l; i ++ ) {

				if ( distance < levels[ i ].distance ) {

					break;

				}

			}

			return levels[ i - 1 ].object;

		},

		raycast: ( function () {

			var matrixPosition = new Vector3();

			return function raycast( raycaster, intersects ) {

				matrixPosition.setFromMatrixPosition( this.matrixWorld );

				var distance = raycaster.ray.origin.distanceTo( matrixPosition );

				this.getObjectForDistance( distance ).raycast( raycaster, intersects );

			};

		}() ),

		update: function () {

			var v1 = new Vector3();
			var v2 = new Vector3();

			return function update( camera ) {

				var levels = this.levels;

				if ( levels.length > 1 ) {

					v1.setFromMatrixPosition( camera.matrixWorld );
					v2.setFromMatrixPosition( this.matrixWorld );

					var distance = v1.distanceTo( v2 );

					levels[ 0 ].object.visible = true;

					for ( var i = 1, l = levels.length; i < l; i ++ ) {

						if ( distance >= levels[ i ].distance ) {

							levels[ i - 1 ].object.visible = false;
							levels[ i ].object.visible = true;

						} else {

							break;

						}

					}

					for ( ; i < l; i ++ ) {

						levels[ i ].object.visible = false;

					}

				}

			};

		}(),

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			data.object.levels = [];

			var levels = this.levels;

			for ( var i = 0, l = levels.length; i < l; i ++ ) {

				var level = levels[ i ];

				data.object.levels.push( {
					object: level.object.uuid,
					distance: level.distance
				} );

			}

			return data;

		}

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author michael guerrero / http://realitymeltdown.com
	 * @author ikerr / http://verold.com
	 */

	function Skeleton( bones, boneInverses ) {

		// copy the bone array

		bones = bones || [];

		this.bones = bones.slice( 0 );
		this.boneMatrices = new Float32Array( this.bones.length * 16 );

		// use the supplied bone inverses or calculate the inverses

		if ( boneInverses === undefined ) {

			this.calculateInverses();

		} else {

			if ( this.bones.length === boneInverses.length ) {

				this.boneInverses = boneInverses.slice( 0 );

			} else {

				console.warn( 'THREE.Skeleton boneInverses is the wrong length.' );

				this.boneInverses = [];

				for ( var i = 0, il = this.bones.length; i < il; i ++ ) {

					this.boneInverses.push( new Matrix4() );

				}

			}

		}

	}

	Object.assign( Skeleton.prototype, {

		calculateInverses: function () {

			this.boneInverses = [];

			for ( var i = 0, il = this.bones.length; i < il; i ++ ) {

				var inverse = new Matrix4();

				if ( this.bones[ i ] ) {

					inverse.getInverse( this.bones[ i ].matrixWorld );

				}

				this.boneInverses.push( inverse );

			}

		},

		pose: function () {

			var bone, i, il;

			// recover the bind-time world matrices

			for ( i = 0, il = this.bones.length; i < il; i ++ ) {

				bone = this.bones[ i ];

				if ( bone ) {

					bone.matrixWorld.getInverse( this.boneInverses[ i ] );

				}

			}

			// compute the local matrices, positions, rotations and scales

			for ( i = 0, il = this.bones.length; i < il; i ++ ) {

				bone = this.bones[ i ];

				if ( bone ) {

					if ( bone.parent && bone.parent.isBone ) {

						bone.matrix.getInverse( bone.parent.matrixWorld );
						bone.matrix.multiply( bone.matrixWorld );

					} else {

						bone.matrix.copy( bone.matrixWorld );

					}

					bone.matrix.decompose( bone.position, bone.quaternion, bone.scale );

				}

			}

		},

		update: ( function () {

			var offsetMatrix = new Matrix4();
			var identityMatrix = new Matrix4();

			return function update() {

				var bones = this.bones;
				var boneInverses = this.boneInverses;
				var boneMatrices = this.boneMatrices;
				var boneTexture = this.boneTexture;

				// flatten bone matrices to array

				for ( var i = 0, il = bones.length; i < il; i ++ ) {

					// compute the offset between the current and the original transform

					var matrix = bones[ i ] ? bones[ i ].matrixWorld : identityMatrix;

					offsetMatrix.multiplyMatrices( matrix, boneInverses[ i ] );
					offsetMatrix.toArray( boneMatrices, i * 16 );

				}

				if ( boneTexture !== undefined ) {

					boneTexture.needsUpdate = true;

				}

			};

		} )(),

		clone: function () {

			return new Skeleton( this.bones, this.boneInverses );

		}

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author ikerr / http://verold.com
	 */

	function Bone() {

		Object3D.call( this );

		this.type = 'Bone';

	}

	Bone.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Bone,

		isBone: true

	} );

	/**
	 * @author mikael emtinger / http://gomo.se/
	 * @author alteredq / http://alteredqualia.com/
	 * @author ikerr / http://verold.com
	 */

	function SkinnedMesh( geometry, material ) {

		Mesh.call( this, geometry, material );

		this.type = 'SkinnedMesh';

		this.bindMode = 'attached';
		this.bindMatrix = new Matrix4();
		this.bindMatrixInverse = new Matrix4();

		var bones = this.initBones();
		var skeleton = new Skeleton( bones );

		this.bind( skeleton, this.matrixWorld );

		this.normalizeSkinWeights();

	}

	SkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), {

		constructor: SkinnedMesh,

		isSkinnedMesh: true,

		initBones: function () {

			var bones = [], bone, gbone;
			var i, il;

			if ( this.geometry && this.geometry.bones !== undefined ) {

				// first, create array of 'Bone' objects from geometry data

				for ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {

					gbone = this.geometry.bones[ i ];

					// create new 'Bone' object

					bone = new Bone();
					bones.push( bone );

					// apply values

					bone.name = gbone.name;
					bone.position.fromArray( gbone.pos );
					bone.quaternion.fromArray( gbone.rotq );
					if ( gbone.scl !== undefined ) bone.scale.fromArray( gbone.scl );

				}

				// second, create bone hierarchy

				for ( i = 0, il = this.geometry.bones.length; i < il; i ++ ) {

					gbone = this.geometry.bones[ i ];

					if ( ( gbone.parent !== - 1 ) && ( gbone.parent !== null ) && ( bones[ gbone.parent ] !== undefined ) ) {

						// subsequent bones in the hierarchy

						bones[ gbone.parent ].add( bones[ i ] );

					} else {

						// topmost bone, immediate child of the skinned mesh

						this.add( bones[ i ] );

					}

				}

			}

			// now the bones are part of the scene graph and children of the skinned mesh.
			// let's update the corresponding matrices

			this.updateMatrixWorld( true );

			return bones;

		},

		bind: function ( skeleton, bindMatrix ) {

			this.skeleton = skeleton;

			if ( bindMatrix === undefined ) {

				this.updateMatrixWorld( true );

				this.skeleton.calculateInverses();

				bindMatrix = this.matrixWorld;

			}

			this.bindMatrix.copy( bindMatrix );
			this.bindMatrixInverse.getInverse( bindMatrix );

		},

		pose: function () {

			this.skeleton.pose();

		},

		normalizeSkinWeights: function () {

			var scale, i;

			if ( this.geometry && this.geometry.isGeometry ) {

				for ( i = 0; i < this.geometry.skinWeights.length; i ++ ) {

					var sw = this.geometry.skinWeights[ i ];

					scale = 1.0 / sw.lengthManhattan();

					if ( scale !== Infinity ) {

						sw.multiplyScalar( scale );

					} else {

						sw.set( 1, 0, 0, 0 ); // do something reasonable

					}

				}

			} else if ( this.geometry && this.geometry.isBufferGeometry ) {

				var vec = new Vector4();

				var skinWeight = this.geometry.attributes.skinWeight;

				for ( i = 0; i < skinWeight.count; i ++ ) {

					vec.x = skinWeight.getX( i );
					vec.y = skinWeight.getY( i );
					vec.z = skinWeight.getZ( i );
					vec.w = skinWeight.getW( i );

					scale = 1.0 / vec.lengthManhattan();

					if ( scale !== Infinity ) {

						vec.multiplyScalar( scale );

					} else {

						vec.set( 1, 0, 0, 0 ); // do something reasonable

					}

					skinWeight.setXYZW( i, vec.x, vec.y, vec.z, vec.w );

				}

			}

		},

		updateMatrixWorld: function ( force ) {

			Mesh.prototype.updateMatrixWorld.call( this, force );

			if ( this.bindMode === 'attached' ) {

				this.bindMatrixInverse.getInverse( this.matrixWorld );

			} else if ( this.bindMode === 'detached' ) {

				this.bindMatrixInverse.getInverse( this.bindMatrix );

			} else {

				console.warn( 'THREE.SkinnedMesh: Unrecognized bindMode: ' + this.bindMode );

			}

		},

		clone: function () {

			return new this.constructor( this.geometry, this.material ).copy( this );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *
	 *  linewidth: <float>,
	 *  linecap: "round",
	 *  linejoin: "round"
	 * }
	 */

	function LineBasicMaterial( parameters ) {

		Material.call( this );

		this.type = 'LineBasicMaterial';

		this.color = new Color( 0xffffff );

		this.linewidth = 1;
		this.linecap = 'round';
		this.linejoin = 'round';

		this.lights = false;

		this.setValues( parameters );

	}

	LineBasicMaterial.prototype = Object.create( Material.prototype );
	LineBasicMaterial.prototype.constructor = LineBasicMaterial;

	LineBasicMaterial.prototype.isLineBasicMaterial = true;

	LineBasicMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		this.linewidth = source.linewidth;
		this.linecap = source.linecap;
		this.linejoin = source.linejoin;

		return this;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Line( geometry, material, mode ) {

		if ( mode === 1 ) {

			console.warn( 'THREE.Line: parameter THREE.LinePieces no longer supported. Created THREE.LineSegments instead.' );
			return new LineSegments( geometry, material );

		}

		Object3D.call( this );

		this.type = 'Line';

		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
		this.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } );

	}

	Line.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Line,

		isLine: true,

		raycast: ( function () {

			var inverseMatrix = new Matrix4();
			var ray = new Ray();
			var sphere = new Sphere();

			return function raycast( raycaster, intersects ) {

				var precision = raycaster.linePrecision;
				var precisionSq = precision * precision;

				var geometry = this.geometry;
				var matrixWorld = this.matrixWorld;

				// Checking boundingSphere distance to ray

				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

				sphere.copy( geometry.boundingSphere );
				sphere.applyMatrix4( matrixWorld );

				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;

				//

				inverseMatrix.getInverse( matrixWorld );
				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );

				var vStart = new Vector3();
				var vEnd = new Vector3();
				var interSegment = new Vector3();
				var interRay = new Vector3();
				var step = (this && this.isLineSegments) ? 2 : 1;

				if ( geometry.isBufferGeometry ) {

					var index = geometry.index;
					var attributes = geometry.attributes;
					var positions = attributes.position.array;

					if ( index !== null ) {

						var indices = index.array;

						for ( var i = 0, l = indices.length - 1; i < l; i += step ) {

							var a = indices[ i ];
							var b = indices[ i + 1 ];

							vStart.fromArray( positions, a * 3 );
							vEnd.fromArray( positions, b * 3 );

							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

							if ( distSq > precisionSq ) continue;

							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

							var distance = raycaster.ray.origin.distanceTo( interRay );

							if ( distance < raycaster.near || distance > raycaster.far ) continue;

							intersects.push( {

								distance: distance,
								// What do we want? intersection point on the ray or on the segment??
								// point: raycaster.ray.at( distance ),
								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
								index: i,
								face: null,
								faceIndex: null,
								object: this

							} );

						}

					} else {

						for ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {

							vStart.fromArray( positions, 3 * i );
							vEnd.fromArray( positions, 3 * i + 3 );

							var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );

							if ( distSq > precisionSq ) continue;

							interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

							var distance = raycaster.ray.origin.distanceTo( interRay );

							if ( distance < raycaster.near || distance > raycaster.far ) continue;

							intersects.push( {

								distance: distance,
								// What do we want? intersection point on the ray or on the segment??
								// point: raycaster.ray.at( distance ),
								point: interSegment.clone().applyMatrix4( this.matrixWorld ),
								index: i,
								face: null,
								faceIndex: null,
								object: this

							} );

						}

					}

				} else if ( geometry.isGeometry ) {

					var vertices = geometry.vertices;
					var nbVertices = vertices.length;

					for ( var i = 0; i < nbVertices - 1; i += step ) {

						var distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );

						if ( distSq > precisionSq ) continue;

						interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation

						var distance = raycaster.ray.origin.distanceTo( interRay );

						if ( distance < raycaster.near || distance > raycaster.far ) continue;

						intersects.push( {

							distance: distance,
							// What do we want? intersection point on the ray or on the segment??
							// point: raycaster.ray.at( distance ),
							point: interSegment.clone().applyMatrix4( this.matrixWorld ),
							index: i,
							face: null,
							faceIndex: null,
							object: this

						} );

					}

				}

			};

		}() ),

		clone: function () {

			return new this.constructor( this.geometry, this.material ).copy( this );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function LineSegments( geometry, material ) {

		Line.call( this, geometry, material );

		this.type = 'LineSegments';

	}

	LineSegments.prototype = Object.assign( Object.create( Line.prototype ), {

		constructor: LineSegments,

		isLineSegments: true

	} );

	/**
	 * @author mgreter / http://github.com/mgreter
	 */

	function LineLoop( geometry, material ) {

		Line.call( this, geometry, material );

		this.type = 'LineLoop';

	}

	LineLoop.prototype = Object.assign( Object.create( Line.prototype ), {

		constructor: LineLoop,

		isLineLoop: true,

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  size: <float>,
	 *  sizeAttenuation: <bool>
	 * }
	 */

	function PointsMaterial( parameters ) {

		Material.call( this );

		this.type = 'PointsMaterial';

		this.color = new Color( 0xffffff );

		this.map = null;

		this.size = 1;
		this.sizeAttenuation = true;

		this.lights = false;

		this.setValues( parameters );

	}

	PointsMaterial.prototype = Object.create( Material.prototype );
	PointsMaterial.prototype.constructor = PointsMaterial;

	PointsMaterial.prototype.isPointsMaterial = true;

	PointsMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		this.map = source.map;

		this.size = source.size;
		this.sizeAttenuation = source.sizeAttenuation;

		return this;

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Points( geometry, material ) {

		Object3D.call( this );

		this.type = 'Points';

		this.geometry = geometry !== undefined ? geometry : new BufferGeometry();
		this.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } );

	}

	Points.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Points,

		isPoints: true,

		raycast: ( function () {

			var inverseMatrix = new Matrix4();
			var ray = new Ray();
			var sphere = new Sphere();

			return function raycast( raycaster, intersects ) {

				var object = this;
				var geometry = this.geometry;
				var matrixWorld = this.matrixWorld;
				var threshold = raycaster.params.Points.threshold;

				// Checking boundingSphere distance to ray

				if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();

				sphere.copy( geometry.boundingSphere );
				sphere.applyMatrix4( matrixWorld );
				sphere.radius += threshold;

				if ( raycaster.ray.intersectsSphere( sphere ) === false ) return;

				//

				inverseMatrix.getInverse( matrixWorld );
				ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );

				var localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );
				var localThresholdSq = localThreshold * localThreshold;
				var position = new Vector3();

				function testPoint( point, index ) {

					var rayPointDistanceSq = ray.distanceSqToPoint( point );

					if ( rayPointDistanceSq < localThresholdSq ) {

						var intersectPoint = ray.closestPointToPoint( point );
						intersectPoint.applyMatrix4( matrixWorld );

						var distance = raycaster.ray.origin.distanceTo( intersectPoint );

						if ( distance < raycaster.near || distance > raycaster.far ) return;

						intersects.push( {

							distance: distance,
							distanceToRay: Math.sqrt( rayPointDistanceSq ),
							point: intersectPoint.clone(),
							index: index,
							face: null,
							object: object

						} );

					}

				}

				if ( geometry.isBufferGeometry ) {

					var index = geometry.index;
					var attributes = geometry.attributes;
					var positions = attributes.position.array;

					if ( index !== null ) {

						var indices = index.array;

						for ( var i = 0, il = indices.length; i < il; i ++ ) {

							var a = indices[ i ];

							position.fromArray( positions, a * 3 );

							testPoint( position, a );

						}

					} else {

						for ( var i = 0, l = positions.length / 3; i < l; i ++ ) {

							position.fromArray( positions, i * 3 );

							testPoint( position, i );

						}

					}

				} else {

					var vertices = geometry.vertices;

					for ( var i = 0, l = vertices.length; i < l; i ++ ) {

						testPoint( vertices[ i ], i );

					}

				}

			};

		}() ),

		clone: function () {

			return new this.constructor( this.geometry, this.material ).copy( this );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Group() {

		Object3D.call( this );

		this.type = 'Group';

	}

	Group.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Group

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

		Texture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

		this.generateMipmaps = false;

		var scope = this;

		function update() {

			requestAnimationFrame( update );

			if ( video.readyState >= video.HAVE_CURRENT_DATA ) {

				scope.needsUpdate = true;

			}

		}

		update();

	}

	VideoTexture.prototype = Object.create( Texture.prototype );
	VideoTexture.prototype.constructor = VideoTexture;

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {

		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );

		this.image = { width: width, height: height };
		this.mipmaps = mipmaps;

		// no flipping for cube textures
		// (also flipping doesn't work for compressed textures )

		this.flipY = false;

		// can't generate mipmaps for compressed textures
		// mips must be embedded in DDS files

		this.generateMipmaps = false;

	}

	CompressedTexture.prototype = Object.create( Texture.prototype );
	CompressedTexture.prototype.constructor = CompressedTexture;

	CompressedTexture.prototype.isCompressedTexture = true;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {

		Texture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

		this.needsUpdate = true;

	}

	CanvasTexture.prototype = Object.create( Texture.prototype );
	CanvasTexture.prototype.constructor = CanvasTexture;

	/**
	 * @author Matt DesLauriers / @mattdesl
	 * @author atix / arthursilber.de
	 */

	function DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {

		format = format !== undefined ? format : DepthFormat;

		if ( format !== DepthFormat && format !== DepthStencilFormat ) {

			throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' )

		}

		if ( type === undefined && format === DepthFormat ) type = UnsignedShortType;
		if ( type === undefined && format === DepthStencilFormat ) type = UnsignedInt248Type;

		Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );

		this.image = { width: width, height: height };

		this.magFilter = magFilter !== undefined ? magFilter : NearestFilter;
		this.minFilter = minFilter !== undefined ? minFilter : NearestFilter;

		this.flipY = false;
		this.generateMipmaps	= false;

	}

	DepthTexture.prototype = Object.create( Texture.prototype );
	DepthTexture.prototype.constructor = DepthTexture;
	DepthTexture.prototype.isDepthTexture = true;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function WireframeGeometry( geometry ) {

		BufferGeometry.call( this );

		this.type = 'WireframeGeometry';

		// buffer

		var vertices = [];

		// helper variables

		var i, j, l, o, ol;
		var edge = [ 0, 0 ], edges = {}, e, edge1, edge2;
		var key, keys = [ 'a', 'b', 'c' ];
		var vertex;

		// different logic for Geometry and BufferGeometry

		if ( geometry && geometry.isGeometry ) {

			// create a data structure that contains all edges without duplicates

			var faces = geometry.faces;

			for ( i = 0, l = faces.length; i < l; i ++ ) {

				var face = faces[ i ];

				for ( j = 0; j < 3; j ++ ) {

					edge1 = face[ keys[ j ] ];
					edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
					edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
					edge[ 1 ] = Math.max( edge1, edge2 );

					key = edge[ 0 ] + ',' + edge[ 1 ];

					if ( edges[ key ] === undefined ) {

						edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };

					}

				}

			}

			// generate vertices

			for ( key in edges ) {

				e = edges[ key ];

				vertex = geometry.vertices[ e.index1 ];
				vertices.push( vertex.x, vertex.y, vertex.z );

				vertex = geometry.vertices[ e.index2 ];
				vertices.push( vertex.x, vertex.y, vertex.z );

			}

		} else if ( geometry && geometry.isBufferGeometry ) {

			var position, indices, groups;
			var group, start, count;
			var index1, index2;

			vertex = new Vector3();

			if ( geometry.index !== null ) {

				// indexed BufferGeometry

				position = geometry.attributes.position;
				indices = geometry.index;
				groups = geometry.groups;

				if ( groups.length === 0 ) {

					groups = [ { start: 0, count: indices.count, materialIndex: 0 } ];

				}

				// create a data structure that contains all eges without duplicates

				for ( o = 0, ol = groups.length; o < ol; ++ o ) {

					group = groups[ o ];

					start = group.start;
					count = group.count;

					for ( i = start, l = ( start + count ); i < l; i += 3 ) {

						for ( j = 0; j < 3; j ++ ) {

							edge1 = indices.getX( i + j );
							edge2 = indices.getX( i + ( j + 1 ) % 3 );
							edge[ 0 ] = Math.min( edge1, edge2 ); // sorting prevents duplicates
							edge[ 1 ] = Math.max( edge1, edge2 );

							key = edge[ 0 ] + ',' + edge[ 1 ];

							if ( edges[ key ] === undefined ) {

								edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ] };

							}

						}

					}

				}

				// generate vertices

				for ( key in edges ) {

					e = edges[ key ];

					vertex.fromBufferAttribute( position, e.index1 );
					vertices.push( vertex.x, vertex.y, vertex.z );

					vertex.fromBufferAttribute( position, e.index2 );
					vertices.push( vertex.x, vertex.y, vertex.z );

				}

			} else {

				// non-indexed BufferGeometry

				position = geometry.attributes.position;

				for ( i = 0, l = ( position.count / 3 ); i < l; i ++ ) {

					for ( j = 0; j < 3; j ++ ) {

						// three edges per triangle, an edge is represented as (index1, index2)
						// e.g. the first triangle has the following edges: (0,1),(1,2),(2,0)

						index1 = 3 * i + j;
						vertex.fromBufferAttribute( position, index1 );
						vertices.push( vertex.x, vertex.y, vertex.z );

						index2 = 3 * i + ( ( j + 1 ) % 3 );
						vertex.fromBufferAttribute( position, index2 );
						vertices.push( vertex.x, vertex.y, vertex.z );

					}

				}

			}

		}

		// build geometry

		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );

	}

	WireframeGeometry.prototype = Object.create( BufferGeometry.prototype );
	WireframeGeometry.prototype.constructor = WireframeGeometry;

	/**
	 * @author zz85 / https://github.com/zz85
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 * Parametric Surfaces Geometry
	 * based on the brilliant article by @prideout http://prideout.net/blog/?p=44
	 */

	// ParametricGeometry

	function ParametricGeometry( func, slices, stacks ) {

		Geometry.call( this );

		this.type = 'ParametricGeometry';

		this.parameters = {
			func: func,
			slices: slices,
			stacks: stacks
		};

		this.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) );
		this.mergeVertices();

	}

	ParametricGeometry.prototype = Object.create( Geometry.prototype );
	ParametricGeometry.prototype.constructor = ParametricGeometry;

	// ParametricBufferGeometry

	function ParametricBufferGeometry( func, slices, stacks ) {

		BufferGeometry.call( this );

		this.type = 'ParametricBufferGeometry';

		this.parameters = {
			func: func,
			slices: slices,
			stacks: stacks
		};

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		var EPS = 0.00001;

		var normal = new Vector3();

		var p0 = new Vector3(), p1 = new Vector3();
		var pu = new Vector3(), pv = new Vector3();

		var i, j;

		// generate vertices, normals and uvs

		var sliceCount = slices + 1;

		for ( i = 0; i <= stacks; i ++ ) {

			var v = i / stacks;

			for ( j = 0; j <= slices; j ++ ) {

				var u = j / slices;

				// vertex

				p0 = func( u, v, p0 );
				vertices.push( p0.x, p0.y, p0.z );

				// normal

				// approximate tangent vectors via finite differences

				if ( u - EPS >= 0 ) {

					p1 = func( u - EPS, v, p1 );
					pu.subVectors( p0, p1 );

				} else {

					p1 = func( u + EPS, v, p1 );
					pu.subVectors( p1, p0 );

				}

				if ( v - EPS >= 0 ) {

					p1 = func( u, v - EPS, p1 );
					pv.subVectors( p0, p1 );

				} else {

					p1 = func( u, v + EPS, p1 );
					pv.subVectors( p1, p0 );

				}

				// cross product of tangent vectors returns surface normal

				normal.crossVectors( pu, pv ).normalize();
				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( u, v );

			}

		}

		// generate indices

		for ( i = 0; i < stacks; i ++ ) {

			for ( j = 0; j < slices; j ++ ) {

				var a = i * sliceCount + j;
				var b = i * sliceCount + j + 1;
				var c = ( i + 1 ) * sliceCount + j + 1;
				var d = ( i + 1 ) * sliceCount + j;

				// faces one and two

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	ParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	ParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry;

	/**
	 * @author clockworkgeek / https://github.com/clockworkgeek
	 * @author timothypratley / https://github.com/timothypratley
	 * @author WestLangley / http://github.com/WestLangley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// PolyhedronGeometry

	function PolyhedronGeometry( vertices, indices, radius, detail ) {

		Geometry.call( this );

		this.type = 'PolyhedronGeometry';

		this.parameters = {
			vertices: vertices,
			indices: indices,
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) );
		this.mergeVertices();

	}

	PolyhedronGeometry.prototype = Object.create( Geometry.prototype );
	PolyhedronGeometry.prototype.constructor = PolyhedronGeometry;

	// PolyhedronBufferGeometry

	function PolyhedronBufferGeometry( vertices, indices, radius, detail ) {

		BufferGeometry.call( this );

		this.type = 'PolyhedronBufferGeometry';

		this.parameters = {
			vertices: vertices,
			indices: indices,
			radius: radius,
			detail: detail
		};

		radius = radius || 1;
		detail = detail || 0;

		// default buffer data

		var vertexBuffer = [];
		var uvBuffer = [];

		// the subdivision creates the vertex buffer data

		subdivide( detail );

		// all vertices should lie on a conceptual sphere with a given radius

		appplyRadius( radius );

		// finally, create the uv data

		generateUVs();

		// build non-indexed geometry

		this.addAttribute( 'position', new Float32BufferAttribute( vertexBuffer, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( vertexBuffer.slice(), 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvBuffer, 2 ) );

		if ( detail === 0 ) {

			this.computeVertexNormals(); // flat normals

		} else {

			this.normalizeNormals(); // smooth normals

		}

		// helper functions

		function subdivide( detail ) {

			var a = new Vector3();
			var b = new Vector3();
			var c = new Vector3();

			// iterate over all faces and apply a subdivison with the given detail value

			for ( var i = 0; i < indices.length; i += 3 ) {

				// get the vertices of the face

				getVertexByIndex( indices[ i + 0 ], a );
				getVertexByIndex( indices[ i + 1 ], b );
				getVertexByIndex( indices[ i + 2 ], c );

				// perform subdivision

				subdivideFace( a, b, c, detail );

			}

		}

		function subdivideFace( a, b, c, detail ) {

			var cols = Math.pow( 2, detail );

			// we use this multidimensional array as a data structure for creating the subdivision

			var v = [];

			var i, j;

			// construct all of the vertices for this subdivision

			for ( i = 0; i <= cols; i ++ ) {

				v[ i ] = [];

				var aj = a.clone().lerp( c, i / cols );
				var bj = b.clone().lerp( c, i / cols );

				var rows = cols - i;

				for ( j = 0; j <= rows; j ++ ) {

					if ( j === 0 && i === cols ) {

						v[ i ][ j ] = aj;

					} else {

						v[ i ][ j ] = aj.clone().lerp( bj, j / rows );

					}

				}

			}

			// construct all of the faces

			for ( i = 0; i < cols; i ++ ) {

				for ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {

					var k = Math.floor( j / 2 );

					if ( j % 2 === 0 ) {

						pushVertex( v[ i ][ k + 1 ] );
						pushVertex( v[ i + 1 ][ k ] );
						pushVertex( v[ i ][ k ] );

					} else {

						pushVertex( v[ i ][ k + 1 ] );
						pushVertex( v[ i + 1 ][ k + 1 ] );
						pushVertex( v[ i + 1 ][ k ] );

					}

				}

			}

		}

		function appplyRadius( radius ) {

			var vertex = new Vector3();

			// iterate over the entire buffer and apply the radius to each vertex

			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {

				vertex.x = vertexBuffer[ i + 0 ];
				vertex.y = vertexBuffer[ i + 1 ];
				vertex.z = vertexBuffer[ i + 2 ];

				vertex.normalize().multiplyScalar( radius );

				vertexBuffer[ i + 0 ] = vertex.x;
				vertexBuffer[ i + 1 ] = vertex.y;
				vertexBuffer[ i + 2 ] = vertex.z;

			}

		}

		function generateUVs() {

			var vertex = new Vector3();

			for ( var i = 0; i < vertexBuffer.length; i += 3 ) {

				vertex.x = vertexBuffer[ i + 0 ];
				vertex.y = vertexBuffer[ i + 1 ];
				vertex.z = vertexBuffer[ i + 2 ];

				var u = azimuth( vertex ) / 2 / Math.PI + 0.5;
				var v = inclination( vertex ) / Math.PI + 0.5;
				uvBuffer.push( u, 1 - v );

			}

			correctUVs();

			correctSeam();

		}

		function correctSeam() {

			// handle case when face straddles the seam, see #3269

			for ( var i = 0; i < uvBuffer.length; i += 6 ) {

				// uv data of a single face

				var x0 = uvBuffer[ i + 0 ];
				var x1 = uvBuffer[ i + 2 ];
				var x2 = uvBuffer[ i + 4 ];

				var max = Math.max( x0, x1, x2 );
				var min = Math.min( x0, x1, x2 );

				// 0.9 is somewhat arbitrary

				if ( max > 0.9 && min < 0.1 ) {

					if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;
					if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;
					if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;

				}

			}

		}

		function pushVertex( vertex ) {

			vertexBuffer.push( vertex.x, vertex.y, vertex.z );

		}

		function getVertexByIndex( index, vertex ) {

			var stride = index * 3;

			vertex.x = vertices[ stride + 0 ];
			vertex.y = vertices[ stride + 1 ];
			vertex.z = vertices[ stride + 2 ];

		}

		function correctUVs() {

			var a = new Vector3();
			var b = new Vector3();
			var c = new Vector3();

			var centroid = new Vector3();

			var uvA = new Vector2();
			var uvB = new Vector2();
			var uvC = new Vector2();

			for ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {

				a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );
				b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );
				c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );

				uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );
				uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );
				uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );

				centroid.copy( a ).add( b ).add( c ).divideScalar( 3 );

				var azi = azimuth( centroid );

				correctUV( uvA, j + 0, a, azi );
				correctUV( uvB, j + 2, b, azi );
				correctUV( uvC, j + 4, c, azi );

			}

		}

		function correctUV( uv, stride, vector, azimuth ) {

			if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {

				uvBuffer[ stride ] = uv.x - 1;

			}

			if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {

				uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;

			}

		}

		// Angle around the Y axis, counter-clockwise when looking from above.

		function azimuth( vector ) {

			return Math.atan2( vector.z, - vector.x );

		}


		// Angle above the XZ plane.

		function inclination( vector ) {

			return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );

		}

	}

	PolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	PolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry;

	/**
	 * @author timothypratley / https://github.com/timothypratley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// TetrahedronGeometry

	function TetrahedronGeometry( radius, detail ) {

		Geometry.call( this );

		this.type = 'TetrahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) );
		this.mergeVertices();

	}

	TetrahedronGeometry.prototype = Object.create( Geometry.prototype );
	TetrahedronGeometry.prototype.constructor = TetrahedronGeometry;

	// TetrahedronBufferGeometry

	function TetrahedronBufferGeometry( radius, detail ) {

		var vertices = [
			1,  1,  1,   - 1, - 1,  1,   - 1,  1, - 1,    1, - 1, - 1
		];

		var indices = [
			2,  1,  0,    0,  3,  2,    1,  3,  0,    2,  3,  1
		];

		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

		this.type = 'TetrahedronBufferGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	TetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
	TetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry;

	/**
	 * @author timothypratley / https://github.com/timothypratley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// OctahedronGeometry

	function OctahedronGeometry( radius, detail ) {

		Geometry.call( this );

		this.type = 'OctahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) );
		this.mergeVertices();

	}

	OctahedronGeometry.prototype = Object.create( Geometry.prototype );
	OctahedronGeometry.prototype.constructor = OctahedronGeometry;

	// OctahedronBufferGeometry

	function OctahedronBufferGeometry( radius, detail ) {

		var vertices = [
			1, 0, 0,   - 1, 0, 0,    0, 1, 0,    0, - 1, 0,    0, 0, 1,    0, 0, - 1
		];

		var indices = [
			0, 2, 4,    0, 4, 3,    0, 3, 5,    0, 5, 2,    1, 2, 5,    1, 5, 3,    1, 3, 4,    1, 4, 2
		];

		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

		this.type = 'OctahedronBufferGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	OctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
	OctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry;

	/**
	 * @author timothypratley / https://github.com/timothypratley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// IcosahedronGeometry

	function IcosahedronGeometry( radius, detail ) {

	 	Geometry.call( this );

		this.type = 'IcosahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );
		this.mergeVertices();

	}

	IcosahedronGeometry.prototype = Object.create( Geometry.prototype );
	IcosahedronGeometry.prototype.constructor = IcosahedronGeometry;

	// IcosahedronBufferGeometry

	function IcosahedronBufferGeometry( radius, detail ) {

		var t = ( 1 + Math.sqrt( 5 ) ) / 2;

		var vertices = [
			- 1,  t,  0,    1,  t,  0,   - 1, - t,  0,    1, - t,  0,
			 0, - 1,  t,    0,  1,  t,    0, - 1, - t,    0,  1, - t,
			 t,  0, - 1,    t,  0,  1,   - t,  0, - 1,   - t,  0,  1
		];

		var indices = [
			 0, 11,  5,    0,  5,  1,    0,  1,  7,    0,  7, 10,    0, 10, 11,
			 1,  5,  9,    5, 11,  4,   11, 10,  2,   10,  7,  6,    7,  1,  8,
			 3,  9,  4,    3,  4,  2,    3,  2,  6,    3,  6,  8,    3,  8,  9,
			 4,  9,  5,    2,  4, 11,    6,  2, 10,    8,  6,  7,    9,  8,  1
		];

		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

		this.type = 'IcosahedronBufferGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	IcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
	IcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;

	/**
	 * @author Abe Pazos / https://hamoid.com
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// DodecahedronGeometry

	function DodecahedronGeometry( radius, detail ) {

		Geometry.call( this );

		this.type = 'DodecahedronGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

		this.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) );
		this.mergeVertices();

	}

	DodecahedronGeometry.prototype = Object.create( Geometry.prototype );
	DodecahedronGeometry.prototype.constructor = DodecahedronGeometry;

	// DodecahedronBufferGeometry

	function DodecahedronBufferGeometry( radius, detail ) {

		var t = ( 1 + Math.sqrt( 5 ) ) / 2;
		var r = 1 / t;

		var vertices = [

			// (±1, ±1, ±1)
			- 1, - 1, - 1,    - 1, - 1,  1,
			- 1,  1, - 1,    - 1,  1,  1,
			  1, - 1, - 1,     1, - 1,  1,
			  1,  1, - 1,     1,  1,  1,

			// (0, ±1/φ, ±φ)
			 0, - r, - t,     0, - r,  t,
			 0,  r, - t,     0,  r,  t,

			// (±1/φ, ±φ, 0)
			- r, - t,  0,    - r,  t,  0,
			 r, - t,  0,     r,  t,  0,

			// (±φ, 0, ±1/φ)
			- t,  0, - r,     t,  0, - r,
			- t,  0,  r,     t,  0,  r
		];

		var indices = [
			 3, 11,  7,      3,  7, 15,      3, 15, 13,
			 7, 19, 17,      7, 17,  6,      7,  6, 15,
			17,  4,  8,     17,  8, 10,     17, 10,  6,
			 8,  0, 16,      8, 16,  2,      8,  2, 10,
			 0, 12,  1,      0,  1, 18,      0, 18, 16,
			 6, 10,  2,      6,  2, 13,      6, 13, 15,
			 2, 16, 18,      2, 18,  3,      2,  3, 13,
			18,  1,  9,     18,  9, 11,     18, 11,  3,
			 4, 14, 12,      4, 12,  0,      4,  0,  8,
			11,  9,  5,     11,  5, 19,     11, 19,  7,
			19,  5, 14,     19, 14,  4,     19,  4, 17,
			 1, 12, 14,      1, 14,  5,      1,  5,  9
		];

		PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );

		this.type = 'DodecahedronBufferGeometry';

		this.parameters = {
			radius: radius,
			detail: detail
		};

	}

	DodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );
	DodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry;

	/**
	 * @author oosmoxiecode / https://github.com/oosmoxiecode
	 * @author WestLangley / https://github.com/WestLangley
	 * @author zz85 / https://github.com/zz85
	 * @author miningold / https://github.com/miningold
	 * @author jonobr1 / https://github.com/jonobr1
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 */

	// TubeGeometry

	function TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {

		Geometry.call( this );

		this.type = 'TubeGeometry';

		this.parameters = {
			path: path,
			tubularSegments: tubularSegments,
			radius: radius,
			radialSegments: radialSegments,
			closed: closed
		};

		if ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );

		var bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );

		// expose internals

		this.tangents = bufferGeometry.tangents;
		this.normals = bufferGeometry.normals;
		this.binormals = bufferGeometry.binormals;

		// create geometry

		this.fromBufferGeometry( bufferGeometry );
		this.mergeVertices();

	}

	TubeGeometry.prototype = Object.create( Geometry.prototype );
	TubeGeometry.prototype.constructor = TubeGeometry;

	// TubeBufferGeometry

	function TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) {

		BufferGeometry.call( this );

		this.type = 'TubeBufferGeometry';

		this.parameters = {
			path: path,
			tubularSegments: tubularSegments,
			radius: radius,
			radialSegments: radialSegments,
			closed: closed
		};

		tubularSegments = tubularSegments || 64;
		radius = radius || 1;
		radialSegments = radialSegments || 8;
		closed = closed || false;

		var frames = path.computeFrenetFrames( tubularSegments, closed );

		// expose internals

		this.tangents = frames.tangents;
		this.normals = frames.normals;
		this.binormals = frames.binormals;

		// helper variables

		var vertex = new Vector3();
		var normal = new Vector3();
		var uv = new Vector2();

		var i, j;

		// buffer

		var vertices = [];
		var normals = [];
		var uvs = [];
		var indices = [];

		// create buffer data

		generateBufferData();

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		// functions

		function generateBufferData() {

			for ( i = 0; i < tubularSegments; i ++ ) {

				generateSegment( i );

			}

			// if the geometry is not closed, generate the last row of vertices and normals
			// at the regular position on the given path
			//
			// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)

			generateSegment( ( closed === false ) ? tubularSegments : 0 );

			// uvs are generated in a separate function.
			// this makes it easy compute correct values for closed geometries

			generateUVs();

			// finally create faces

			generateIndices();

		}

		function generateSegment( i ) {

			// we use getPointAt to sample evenly distributed points from the given path

			var P = path.getPointAt( i / tubularSegments );

			// retrieve corresponding normal and binormal

			var N = frames.normals[ i ];
			var B = frames.binormals[ i ];

			// generate normals and vertices for the current segment

			for ( j = 0; j <= radialSegments; j ++ ) {

				var v = j / radialSegments * Math.PI * 2;

				var sin =   Math.sin( v );
				var cos = - Math.cos( v );

				// normal

				normal.x = ( cos * N.x + sin * B.x );
				normal.y = ( cos * N.y + sin * B.y );
				normal.z = ( cos * N.z + sin * B.z );
				normal.normalize();

				normals.push( normal.x, normal.y, normal.z );

				// vertex

				vertex.x = P.x + radius * normal.x;
				vertex.y = P.y + radius * normal.y;
				vertex.z = P.z + radius * normal.z;

				vertices.push( vertex.x, vertex.y, vertex.z );

			}

		}

		function generateIndices() {

			for ( j = 1; j <= tubularSegments; j ++ ) {

				for ( i = 1; i <= radialSegments; i ++ ) {

					var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
					var b = ( radialSegments + 1 ) * j + ( i - 1 );
					var c = ( radialSegments + 1 ) * j + i;
					var d = ( radialSegments + 1 ) * ( j - 1 ) + i;

					// faces

					indices.push( a, b, d );
					indices.push( b, c, d );

				}

			}

		}

		function generateUVs() {

			for ( i = 0; i <= tubularSegments; i ++ ) {

				for ( j = 0; j <= radialSegments; j ++ ) {

					uv.x = i / tubularSegments;
					uv.y = j / radialSegments;

					uvs.push( uv.x, uv.y );

				}

			}

		}

	}

	TubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	TubeBufferGeometry.prototype.constructor = TubeBufferGeometry;

	/**
	 * @author oosmoxiecode
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 * based on http://www.blackpawn.com/texts/pqtorus/
	 */

	// TorusKnotGeometry

	function TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) {

		Geometry.call( this );

		this.type = 'TorusKnotGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			tubularSegments: tubularSegments,
			radialSegments: radialSegments,
			p: p,
			q: q
		};

		if ( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' );

		this.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) );
		this.mergeVertices();

	}

	TorusKnotGeometry.prototype = Object.create( Geometry.prototype );
	TorusKnotGeometry.prototype.constructor = TorusKnotGeometry;

	// TorusKnotBufferGeometry

	function TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) {

		BufferGeometry.call( this );

		this.type = 'TorusKnotBufferGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			tubularSegments: tubularSegments,
			radialSegments: radialSegments,
			p: p,
			q: q
		};

		radius = radius || 100;
		tube = tube || 40;
		tubularSegments = Math.floor( tubularSegments ) || 64;
		radialSegments = Math.floor( radialSegments ) || 8;
		p = p || 2;
		q = q || 3;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var i, j;

		var vertex = new Vector3();
		var normal = new Vector3();

		var P1 = new Vector3();
		var P2 = new Vector3();

		var B = new Vector3();
		var T = new Vector3();
		var N = new Vector3();

		// generate vertices, normals and uvs

		for ( i = 0; i <= tubularSegments; ++ i ) {

			// the radian "u" is used to calculate the position on the torus curve of the current tubular segement

			var u = i / tubularSegments * p * Math.PI * 2;

			// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.
			// these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions

			calculatePositionOnCurve( u, p, q, radius, P1 );
			calculatePositionOnCurve( u + 0.01, p, q, radius, P2 );

			// calculate orthonormal basis

			T.subVectors( P2, P1 );
			N.addVectors( P2, P1 );
			B.crossVectors( T, N );
			N.crossVectors( B, T );

			// normalize B, N. T can be ignored, we don't use it

			B.normalize();
			N.normalize();

			for ( j = 0; j <= radialSegments; ++ j ) {

				// now calculate the vertices. they are nothing more than an extrusion of the torus curve.
				// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.

				var v = j / radialSegments * Math.PI * 2;
				var cx = - tube * Math.cos( v );
				var cy = tube * Math.sin( v );

				// now calculate the final vertex position.
				// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve

				vertex.x = P1.x + ( cx * N.x + cy * B.x );
				vertex.y = P1.y + ( cx * N.y + cy * B.y );
				vertex.z = P1.z + ( cx * N.z + cy * B.z );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)

				normal.subVectors( vertex, P1 ).normalize();

				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( i / tubularSegments );
				uvs.push( j / radialSegments );

			}

		}

		// generate indices

		for ( j = 1; j <= tubularSegments; j ++ ) {

			for ( i = 1; i <= radialSegments; i ++ ) {

				// indices

				var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );
				var b = ( radialSegments + 1 ) * j + ( i - 1 );
				var c = ( radialSegments + 1 ) * j + i;
				var d = ( radialSegments + 1 ) * ( j - 1 ) + i;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		// this function calculates the current position on the torus curve

		function calculatePositionOnCurve( u, p, q, radius, position ) {

			var cu = Math.cos( u );
			var su = Math.sin( u );
			var quOverP = q / p * u;
			var cs = Math.cos( quOverP );

			position.x = radius * ( 2 + cs ) * 0.5 * cu;
			position.y = radius * ( 2 + cs ) * su * 0.5;
			position.z = radius * Math.sin( quOverP ) * 0.5;

		}

	}

	TorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	TorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry;

	/**
	 * @author oosmoxiecode
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// TorusGeometry

	function TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) {

		Geometry.call( this );

		this.type = 'TorusGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			radialSegments: radialSegments,
			tubularSegments: tubularSegments,
			arc: arc
		};

		this.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) );
		this.mergeVertices();

	}

	TorusGeometry.prototype = Object.create( Geometry.prototype );
	TorusGeometry.prototype.constructor = TorusGeometry;

	// TorusBufferGeometry

	function TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) {

		BufferGeometry.call( this );

		this.type = 'TorusBufferGeometry';

		this.parameters = {
			radius: radius,
			tube: tube,
			radialSegments: radialSegments,
			tubularSegments: tubularSegments,
			arc: arc
		};

		radius = radius || 100;
		tube = tube || 40;
		radialSegments = Math.floor( radialSegments ) || 8;
		tubularSegments = Math.floor( tubularSegments ) || 6;
		arc = arc || Math.PI * 2;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var center = new Vector3();
		var vertex = new Vector3();
		var normal = new Vector3();

		var j, i;

		// generate vertices, normals and uvs

		for ( j = 0; j <= radialSegments; j ++ ) {

			for ( i = 0; i <= tubularSegments; i ++ ) {

				var u = i / tubularSegments * arc;
				var v = j / radialSegments * Math.PI * 2;

				// vertex

				vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );
				vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );
				vertex.z = tube * Math.sin( v );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				center.x = radius * Math.cos( u );
				center.y = radius * Math.sin( u );
				normal.subVectors( vertex, center ).normalize();

				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( i / tubularSegments );
				uvs.push( j / radialSegments );

			}

		}

		// generate indices

		for ( j = 1; j <= radialSegments; j ++ ) {

			for ( i = 1; i <= tubularSegments; i ++ ) {

				// indices

				var a = ( tubularSegments + 1 ) * j + i - 1;
				var b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;
				var c = ( tubularSegments + 1 ) * ( j - 1 ) + i;
				var d = ( tubularSegments + 1 ) * j + i;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	TorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	TorusBufferGeometry.prototype.constructor = TorusBufferGeometry;

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 */

	var ShapeUtils = {

		// calculate area of the contour polygon

		area: function ( contour ) {

			var n = contour.length;
			var a = 0.0;

			for ( var p = n - 1, q = 0; q < n; p = q ++ ) {

				a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;

			}

			return a * 0.5;

		},

		triangulate: ( function () {

			/**
			 * This code is a quick port of code written in C++ which was submitted to
			 * flipcode.com by John W. Ratcliff  // July 22, 2000
			 * See original code and more information here:
			 * http://www.flipcode.com/archives/Efficient_Polygon_Triangulation.shtml
			 *
			 * ported to actionscript by Zevan Rosser
			 * www.actionsnippet.com
			 *
			 * ported to javascript by Joshua Koo
			 * http://www.lab4games.net/zz85/blog
			 *
			 */

			function snip( contour, u, v, w, n, verts ) {

				var p;
				var ax, ay, bx, by;
				var cx, cy, px, py;

				ax = contour[ verts[ u ] ].x;
				ay = contour[ verts[ u ] ].y;

				bx = contour[ verts[ v ] ].x;
				by = contour[ verts[ v ] ].y;

				cx = contour[ verts[ w ] ].x;
				cy = contour[ verts[ w ] ].y;

				if ( ( bx - ax ) * ( cy - ay ) - ( by - ay ) * ( cx - ax ) <= 0 ) return false;

				var aX, aY, bX, bY, cX, cY;
				var apx, apy, bpx, bpy, cpx, cpy;
				var cCROSSap, bCROSScp, aCROSSbp;

				aX = cx - bx;  aY = cy - by;
				bX = ax - cx;  bY = ay - cy;
				cX = bx - ax;  cY = by - ay;

				for ( p = 0; p < n; p ++ ) {

					px = contour[ verts[ p ] ].x;
					py = contour[ verts[ p ] ].y;

					if ( ( ( px === ax ) && ( py === ay ) ) ||
						 ( ( px === bx ) && ( py === by ) ) ||
						 ( ( px === cx ) && ( py === cy ) ) )	continue;

					apx = px - ax;  apy = py - ay;
					bpx = px - bx;  bpy = py - by;
					cpx = px - cx;  cpy = py - cy;

					// see if p is inside triangle abc

					aCROSSbp = aX * bpy - aY * bpx;
					cCROSSap = cX * apy - cY * apx;
					bCROSScp = bX * cpy - bY * cpx;

					if ( ( aCROSSbp >= - Number.EPSILON ) && ( bCROSScp >= - Number.EPSILON ) && ( cCROSSap >= - Number.EPSILON ) ) return false;

				}

				return true;

			}

			// takes in an contour array and returns

			return function triangulate( contour, indices ) {

				var n = contour.length;

				if ( n < 3 ) return null;

				var result = [],
					verts = [],
					vertIndices = [];

				/* we want a counter-clockwise polygon in verts */

				var u, v, w;

				if ( ShapeUtils.area( contour ) > 0.0 ) {

					for ( v = 0; v < n; v ++ ) verts[ v ] = v;

				} else {

					for ( v = 0; v < n; v ++ ) verts[ v ] = ( n - 1 ) - v;

				}

				var nv = n;

				/*  remove nv - 2 vertices, creating 1 triangle every time */

				var count = 2 * nv;   /* error detection */

				for ( v = nv - 1; nv > 2; ) {

					/* if we loop, it is probably a non-simple polygon */

					if ( ( count -- ) <= 0 ) {

						//** Triangulate: ERROR - probable bad polygon!

						//throw ( "Warning, unable to triangulate polygon!" );
						//return null;
						// Sometimes warning is fine, especially polygons are triangulated in reverse.
						console.warn( 'THREE.ShapeUtils: Unable to triangulate polygon! in triangulate()' );

						if ( indices ) return vertIndices;
						return result;

					}

					/* three consecutive vertices in current polygon, <u,v,w> */

					u = v; 	 	if ( nv <= u ) u = 0;     /* previous */
					v = u + 1;  if ( nv <= v ) v = 0;     /* new v    */
					w = v + 1;  if ( nv <= w ) w = 0;     /* next     */

					if ( snip( contour, u, v, w, nv, verts ) ) {

						var a, b, c, s, t;

						/* true names of the vertices */

						a = verts[ u ];
						b = verts[ v ];
						c = verts[ w ];

						/* output Triangle */

						result.push( [ contour[ a ],
							contour[ b ],
							contour[ c ] ] );


						vertIndices.push( [ verts[ u ], verts[ v ], verts[ w ] ] );

						/* remove v from the remaining polygon */

						for ( s = v, t = v + 1; t < nv; s ++, t ++ ) {

							verts[ s ] = verts[ t ];

						}

						nv --;

						/* reset error detection counter */

						count = 2 * nv;

					}

				}

				if ( indices ) return vertIndices;
				return result;

			}

		} )(),

		triangulateShape: function ( contour, holes ) {

			function removeDupEndPts(points) {

				var l = points.length;

				if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {

					points.pop();

				}

			}

			removeDupEndPts( contour );
			holes.forEach( removeDupEndPts );

			function point_in_segment_2D_colin( inSegPt1, inSegPt2, inOtherPt ) {

				// inOtherPt needs to be collinear to the inSegment
				if ( inSegPt1.x !== inSegPt2.x ) {

					if ( inSegPt1.x < inSegPt2.x ) {

						return	( ( inSegPt1.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt2.x ) );

					} else {

						return	( ( inSegPt2.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt1.x ) );

					}

				} else {

					if ( inSegPt1.y < inSegPt2.y ) {

						return	( ( inSegPt1.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt2.y ) );

					} else {

						return	( ( inSegPt2.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt1.y ) );

					}

				}

			}

			function intersect_segments_2D( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1, inSeg2Pt2, inExcludeAdjacentSegs ) {

				var seg1dx = inSeg1Pt2.x - inSeg1Pt1.x,   seg1dy = inSeg1Pt2.y - inSeg1Pt1.y;
				var seg2dx = inSeg2Pt2.x - inSeg2Pt1.x,   seg2dy = inSeg2Pt2.y - inSeg2Pt1.y;

				var seg1seg2dx = inSeg1Pt1.x - inSeg2Pt1.x;
				var seg1seg2dy = inSeg1Pt1.y - inSeg2Pt1.y;

				var limit		= seg1dy * seg2dx - seg1dx * seg2dy;
				var perpSeg1	= seg1dy * seg1seg2dx - seg1dx * seg1seg2dy;

				if ( Math.abs( limit ) > Number.EPSILON ) {

					// not parallel

					var perpSeg2;
					if ( limit > 0 ) {

						if ( ( perpSeg1 < 0 ) || ( perpSeg1 > limit ) ) 		return [];
						perpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy;
						if ( ( perpSeg2 < 0 ) || ( perpSeg2 > limit ) ) 		return [];

					} else {

						if ( ( perpSeg1 > 0 ) || ( perpSeg1 < limit ) ) 		return [];
						perpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy;
						if ( ( perpSeg2 > 0 ) || ( perpSeg2 < limit ) ) 		return [];

					}

					// i.e. to reduce rounding errors
					// intersection at endpoint of segment#1?
					if ( perpSeg2 === 0 ) {

						if ( ( inExcludeAdjacentSegs ) &&
							 ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) )		return [];
						return [ inSeg1Pt1 ];

					}
					if ( perpSeg2 === limit ) {

						if ( ( inExcludeAdjacentSegs ) &&
							 ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) )		return [];
						return [ inSeg1Pt2 ];

					}
					// intersection at endpoint of segment#2?
					if ( perpSeg1 === 0 )		return [ inSeg2Pt1 ];
					if ( perpSeg1 === limit )	return [ inSeg2Pt2 ];

					// return real intersection point
					var factorSeg1 = perpSeg2 / limit;
					return	[ { x: inSeg1Pt1.x + factorSeg1 * seg1dx,
								y: inSeg1Pt1.y + factorSeg1 * seg1dy } ];

				} else {

					// parallel or collinear
					if ( ( perpSeg1 !== 0 ) ||
						 ( seg2dy * seg1seg2dx !== seg2dx * seg1seg2dy ) ) 			return [];

					// they are collinear or degenerate
					var seg1Pt = ( ( seg1dx === 0 ) && ( seg1dy === 0 ) );	// segment1 is just a point?
					var seg2Pt = ( ( seg2dx === 0 ) && ( seg2dy === 0 ) );	// segment2 is just a point?
					// both segments are points
					if ( seg1Pt && seg2Pt ) {

						if ( ( inSeg1Pt1.x !== inSeg2Pt1.x ) ||
							 ( inSeg1Pt1.y !== inSeg2Pt1.y ) )		return [];	// they are distinct  points
						return [ inSeg1Pt1 ];                 						// they are the same point

					}
					// segment#1  is a single point
					if ( seg1Pt ) {

						if ( ! point_in_segment_2D_colin( inSeg2Pt1, inSeg2Pt2, inSeg1Pt1 ) )		return [];		// but not in segment#2
						return [ inSeg1Pt1 ];

					}
					// segment#2  is a single point
					if ( seg2Pt ) {

						if ( ! point_in_segment_2D_colin( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1 ) )		return [];		// but not in segment#1
						return [ inSeg2Pt1 ];

					}

					// they are collinear segments, which might overlap
					var seg1min, seg1max, seg1minVal, seg1maxVal;
					var seg2min, seg2max, seg2minVal, seg2maxVal;
					if ( seg1dx !== 0 ) {

						// the segments are NOT on a vertical line
						if ( inSeg1Pt1.x < inSeg1Pt2.x ) {

							seg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.x;
							seg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.x;

						} else {

							seg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.x;
							seg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.x;

						}
						if ( inSeg2Pt1.x < inSeg2Pt2.x ) {

							seg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.x;
							seg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.x;

						} else {

							seg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.x;
							seg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.x;

						}

					} else {

						// the segments are on a vertical line
						if ( inSeg1Pt1.y < inSeg1Pt2.y ) {

							seg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.y;
							seg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.y;

						} else {

							seg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.y;
							seg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.y;

						}
						if ( inSeg2Pt1.y < inSeg2Pt2.y ) {

							seg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.y;
							seg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.y;

						} else {

							seg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.y;
							seg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.y;

						}

					}
					if ( seg1minVal <= seg2minVal ) {

						if ( seg1maxVal <  seg2minVal )	return [];
						if ( seg1maxVal === seg2minVal )	{

							if ( inExcludeAdjacentSegs )		return [];
							return [ seg2min ];

						}
						if ( seg1maxVal <= seg2maxVal )	return [ seg2min, seg1max ];
						return	[ seg2min, seg2max ];

					} else {

						if ( seg1minVal >  seg2maxVal )	return [];
						if ( seg1minVal === seg2maxVal )	{

							if ( inExcludeAdjacentSegs )		return [];
							return [ seg1min ];

						}
						if ( seg1maxVal <= seg2maxVal )	return [ seg1min, seg1max ];
						return	[ seg1min, seg2max ];

					}

				}

			}

			function isPointInsideAngle( inVertex, inLegFromPt, inLegToPt, inOtherPt ) {

				// The order of legs is important

				// translation of all points, so that Vertex is at (0,0)
				var legFromPtX	= inLegFromPt.x - inVertex.x,  legFromPtY	= inLegFromPt.y - inVertex.y;
				var legToPtX	= inLegToPt.x	- inVertex.x,  legToPtY		= inLegToPt.y	- inVertex.y;
				var otherPtX	= inOtherPt.x	- inVertex.x,  otherPtY		= inOtherPt.y	- inVertex.y;

				// main angle >0: < 180 deg.; 0: 180 deg.; <0: > 180 deg.
				var from2toAngle	= legFromPtX * legToPtY - legFromPtY * legToPtX;
				var from2otherAngle	= legFromPtX * otherPtY - legFromPtY * otherPtX;

				if ( Math.abs( from2toAngle ) > Number.EPSILON ) {

					// angle != 180 deg.

					var other2toAngle		= otherPtX * legToPtY - otherPtY * legToPtX;
					// console.log( "from2to: " + from2toAngle + ", from2other: " + from2otherAngle + ", other2to: " + other2toAngle );

					if ( from2toAngle > 0 ) {

						// main angle < 180 deg.
						return	( ( from2otherAngle >= 0 ) && ( other2toAngle >= 0 ) );

					} else {

						// main angle > 180 deg.
						return	( ( from2otherAngle >= 0 ) || ( other2toAngle >= 0 ) );

					}

				} else {

					// angle == 180 deg.
					// console.log( "from2to: 180 deg., from2other: " + from2otherAngle  );
					return	( from2otherAngle > 0 );

				}

			}


			function removeHoles( contour, holes ) {

				var shape = contour.concat(); // work on this shape
				var hole;

				function isCutLineInsideAngles( inShapeIdx, inHoleIdx ) {

					// Check if hole point lies within angle around shape point
					var lastShapeIdx = shape.length - 1;

					var prevShapeIdx = inShapeIdx - 1;
					if ( prevShapeIdx < 0 )			prevShapeIdx = lastShapeIdx;

					var nextShapeIdx = inShapeIdx + 1;
					if ( nextShapeIdx > lastShapeIdx )	nextShapeIdx = 0;

					var insideAngle = isPointInsideAngle( shape[ inShapeIdx ], shape[ prevShapeIdx ], shape[ nextShapeIdx ], hole[ inHoleIdx ] );
					if ( ! insideAngle ) {

						// console.log( "Vertex (Shape): " + inShapeIdx + ", Point: " + hole[inHoleIdx].x + "/" + hole[inHoleIdx].y );
						return	false;

					}

					// Check if shape point lies within angle around hole point
					var lastHoleIdx = hole.length - 1;

					var prevHoleIdx = inHoleIdx - 1;
					if ( prevHoleIdx < 0 )			prevHoleIdx = lastHoleIdx;

					var nextHoleIdx = inHoleIdx + 1;
					if ( nextHoleIdx > lastHoleIdx )	nextHoleIdx = 0;

					insideAngle = isPointInsideAngle( hole[ inHoleIdx ], hole[ prevHoleIdx ], hole[ nextHoleIdx ], shape[ inShapeIdx ] );
					if ( ! insideAngle ) {

						// console.log( "Vertex (Hole): " + inHoleIdx + ", Point: " + shape[inShapeIdx].x + "/" + shape[inShapeIdx].y );
						return	false;

					}

					return	true;

				}

				function intersectsShapeEdge( inShapePt, inHolePt ) {

					// checks for intersections with shape edges
					var sIdx, nextIdx, intersection;
					for ( sIdx = 0; sIdx < shape.length; sIdx ++ ) {

						nextIdx = sIdx + 1; nextIdx %= shape.length;
						intersection = intersect_segments_2D( inShapePt, inHolePt, shape[ sIdx ], shape[ nextIdx ], true );
						if ( intersection.length > 0 )		return	true;

					}

					return	false;

				}

				var indepHoles = [];

				function intersectsHoleEdge( inShapePt, inHolePt ) {

					// checks for intersections with hole edges
					var ihIdx, chkHole,
						hIdx, nextIdx, intersection;
					for ( ihIdx = 0; ihIdx < indepHoles.length; ihIdx ++ ) {

						chkHole = holes[ indepHoles[ ihIdx ]];
						for ( hIdx = 0; hIdx < chkHole.length; hIdx ++ ) {

							nextIdx = hIdx + 1; nextIdx %= chkHole.length;
							intersection = intersect_segments_2D( inShapePt, inHolePt, chkHole[ hIdx ], chkHole[ nextIdx ], true );
							if ( intersection.length > 0 )		return	true;

						}

					}
					return	false;

				}

				var holeIndex, shapeIndex,
					shapePt, holePt,
					holeIdx, cutKey, failedCuts = [],
					tmpShape1, tmpShape2,
					tmpHole1, tmpHole2;

				for ( var h = 0, hl = holes.length; h < hl; h ++ ) {

					indepHoles.push( h );

				}

				var minShapeIndex = 0;
				var counter = indepHoles.length * 2;
				while ( indepHoles.length > 0 ) {

					counter --;
					if ( counter < 0 ) {

						console.log( "Infinite Loop! Holes left:" + indepHoles.length + ", Probably Hole outside Shape!" );
						break;

					}

					// search for shape-vertex and hole-vertex,
					// which can be connected without intersections
					for ( shapeIndex = minShapeIndex; shapeIndex < shape.length; shapeIndex ++ ) {

						shapePt = shape[ shapeIndex ];
						holeIndex	= - 1;

						// search for hole which can be reached without intersections
						for ( var h = 0; h < indepHoles.length; h ++ ) {

							holeIdx = indepHoles[ h ];

							// prevent multiple checks
							cutKey = shapePt.x + ":" + shapePt.y + ":" + holeIdx;
							if ( failedCuts[ cutKey ] !== undefined )			continue;

							hole = holes[ holeIdx ];
							for ( var h2 = 0; h2 < hole.length; h2 ++ ) {

								holePt = hole[ h2 ];
								if ( ! isCutLineInsideAngles( shapeIndex, h2 ) )		continue;
								if ( intersectsShapeEdge( shapePt, holePt ) )		continue;
								if ( intersectsHoleEdge( shapePt, holePt ) )		continue;

								holeIndex = h2;
								indepHoles.splice( h, 1 );

								tmpShape1 = shape.slice( 0, shapeIndex + 1 );
								tmpShape2 = shape.slice( shapeIndex );
								tmpHole1 = hole.slice( holeIndex );
								tmpHole2 = hole.slice( 0, holeIndex + 1 );

								shape = tmpShape1.concat( tmpHole1 ).concat( tmpHole2 ).concat( tmpShape2 );

								minShapeIndex = shapeIndex;

								// Debug only, to show the selected cuts
								// glob_CutLines.push( [ shapePt, holePt ] );

								break;

							}
							if ( holeIndex >= 0 )	break;		// hole-vertex found

							failedCuts[ cutKey ] = true;			// remember failure

						}
						if ( holeIndex >= 0 )	break;		// hole-vertex found

					}

				}

				return shape; 			/* shape with no holes */

			}


			var i, il, f, face,
				key, index,
				allPointsMap = {};

			// To maintain reference to old shape, one must match coordinates, or offset the indices from original arrays. It's probably easier to do the first.

			var allpoints = contour.concat();

			for ( var h = 0, hl = holes.length; h < hl; h ++ ) {

				Array.prototype.push.apply( allpoints, holes[ h ] );

			}

			//console.log( "allpoints",allpoints, allpoints.length );

			// prepare all points map

			for ( i = 0, il = allpoints.length; i < il; i ++ ) {

				key = allpoints[ i ].x + ":" + allpoints[ i ].y;

				if ( allPointsMap[ key ] !== undefined ) {

					console.warn( "THREE.ShapeUtils: Duplicate point", key, i );

				}

				allPointsMap[ key ] = i;

			}

			// remove holes by cutting paths to holes and adding them to the shape
			var shapeWithoutHoles = removeHoles( contour, holes );

			var triangles = ShapeUtils.triangulate( shapeWithoutHoles, false ); // True returns indices for points of spooled shape
			//console.log( "triangles",triangles, triangles.length );

			// check all face vertices against all points map

			for ( i = 0, il = triangles.length; i < il; i ++ ) {

				face = triangles[ i ];

				for ( f = 0; f < 3; f ++ ) {

					key = face[ f ].x + ":" + face[ f ].y;

					index = allPointsMap[ key ];

					if ( index !== undefined ) {

						face[ f ] = index;

					}

				}

			}

			return triangles.concat();

		},

		isClockWise: function ( pts ) {

			return ShapeUtils.area( pts ) < 0;

		}

	};

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 *
	 * Creates extruded geometry from a path shape.
	 *
	 * parameters = {
	 *
	 *  curveSegments: <int>, // number of points on the curves
	 *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
	 *  amount: <int>, // Depth to extrude the shape
	 *
	 *  bevelEnabled: <bool>, // turn on bevel
	 *  bevelThickness: <float>, // how deep into the original shape bevel goes
	 *  bevelSize: <float>, // how far from shape outline is bevel
	 *  bevelSegments: <int>, // number of bevel layers
	 *
	 *  extrudePath: <THREE.Curve> // curve to extrude shape along
	 *  frames: <Object> // containing arrays of tangents, normals, binormals
	 *
	 *  UVGenerator: <Object> // object that provides UV generator functions
	 *
	 * }
	 */

	// ExtrudeGeometry

	function ExtrudeGeometry( shapes, options ) {

		Geometry.call( this );

		this.type = 'ExtrudeGeometry';

		this.parameters = {
			shapes: shapes,
			options: options
		};

		this.fromBufferGeometry( new ExtrudeBufferGeometry( shapes, options ) );
		this.mergeVertices();

	}

	ExtrudeGeometry.prototype = Object.create( Geometry.prototype );
	ExtrudeGeometry.prototype.constructor = ExtrudeGeometry;

	// ExtrudeBufferGeometry

	function ExtrudeBufferGeometry( shapes, options ) {

		if ( typeof ( shapes ) === "undefined" ) {

			return;

		}

		BufferGeometry.call( this );

		this.type = 'ExtrudeBufferGeometry';

		shapes = Array.isArray( shapes ) ? shapes : [ shapes ];

		this.addShapeList( shapes, options );

		this.computeVertexNormals();

		// can't really use automatic vertex normals
		// as then front and back sides get smoothed too
		// should do separate smoothing just for sides

		//this.computeVertexNormals();

		//console.log( "took", ( Date.now() - startTime ) );

	}

	ExtrudeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	ExtrudeBufferGeometry.prototype.constructor = ExtrudeBufferGeometry;

	ExtrudeBufferGeometry.prototype.getArrays = function () {

		var positionAttribute = this.getAttribute( "position" );
		var verticesArray = positionAttribute ? Array.prototype.slice.call( positionAttribute.array ) : [];

		var uvAttribute = this.getAttribute( "uv" );
		var uvArray = uvAttribute ? Array.prototype.slice.call( uvAttribute.array ) : [];

		var IndexAttribute = this.index;
		var indicesArray = IndexAttribute ? Array.prototype.slice.call( IndexAttribute.array ) : [];

		return {
			position: verticesArray,
			uv: uvArray,
			index: indicesArray
		};

	};

	ExtrudeBufferGeometry.prototype.addShapeList = function ( shapes, options ) {

		var sl = shapes.length;
		options.arrays = this.getArrays();

		for ( var s = 0; s < sl; s ++ ) {

			var shape = shapes[ s ];
			this.addShape( shape, options );

		}

		this.setIndex( options.arrays.index );
		this.addAttribute( 'position', new Float32BufferAttribute( options.arrays.position, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( options.arrays.uv, 2 ) );

	};

	ExtrudeBufferGeometry.prototype.addShape = function ( shape, options ) {

		var arrays = options.arrays ? options.arrays : this.getArrays();
		var verticesArray = arrays.position;
		var indicesArray = arrays.index;
		var uvArray = arrays.uv;

		var placeholder = [];


		var amount = options.amount !== undefined ? options.amount : 100;

		var bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6; // 10
		var bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2; // 8
		var bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;

		var bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true; // false

		var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;

		var steps = options.steps !== undefined ? options.steps : 1;

		var extrudePath = options.extrudePath;
		var extrudePts, extrudeByPath = false;

		// Use default WorldUVGenerator if no UV generators are specified.
		var uvgen = options.UVGenerator !== undefined ? options.UVGenerator : ExtrudeGeometry.WorldUVGenerator;

		var splineTube, binormal, normal, position2;
		if ( extrudePath ) {

			extrudePts = extrudePath.getSpacedPoints( steps );

			extrudeByPath = true;
			bevelEnabled = false; // bevels not supported for path extrusion

			// SETUP TNB variables

			// TODO1 - have a .isClosed in spline?

			splineTube = options.frames !== undefined ? options.frames : extrudePath.computeFrenetFrames( steps, false );

			// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);

			binormal = new Vector3();
			normal = new Vector3();
			position2 = new Vector3();

		}

		// Safeguards if bevels are not enabled

		if ( ! bevelEnabled ) {

			bevelSegments = 0;
			bevelThickness = 0;
			bevelSize = 0;

		}

		// Variables initialization

		var ahole, h, hl; // looping of holes
		var scope = this;

		var shapePoints = shape.extractPoints( curveSegments );

		var vertices = shapePoints.shape;
		var holes = shapePoints.holes;

		var reverse = ! ShapeUtils.isClockWise( vertices );

		if ( reverse ) {

			vertices = vertices.reverse();

			// Maybe we should also check if holes are in the opposite direction, just to be safe ...

			for ( h = 0, hl = holes.length; h < hl; h ++ ) {

				ahole = holes[ h ];

				if ( ShapeUtils.isClockWise( ahole ) ) {

					holes[ h ] = ahole.reverse();

				}

			}

		}


		var faces = ShapeUtils.triangulateShape( vertices, holes );

		/* Vertices */

		var contour = vertices; // vertices has all points but contour has only points of circumference

		for ( h = 0, hl = holes.length; h < hl; h ++ ) {

			ahole = holes[ h ];

			vertices = vertices.concat( ahole );

		}


		function scalePt2( pt, vec, size ) {

			if ( ! vec ) console.error( "THREE.ExtrudeGeometry: vec does not exist" );

			return vec.clone().multiplyScalar( size ).add( pt );

		}

		var b, bs, t, z,
			vert, vlen = vertices.length,
			face, flen = faces.length;


		// Find directions for point movement


		function getBevelVec( inPt, inPrev, inNext ) {

			// computes for inPt the corresponding point inPt' on a new contour
			//   shifted by 1 unit (length of normalized vector) to the left
			// if we walk along contour clockwise, this new contour is outside the old one
			//
			// inPt' is the intersection of the two lines parallel to the two
			//  adjacent edges of inPt at a distance of 1 unit on the left side.

			var v_trans_x, v_trans_y, shrink_by; // resulting translation vector for inPt

			// good reading for geometry algorithms (here: line-line intersection)
			// http://geomalgorithms.com/a05-_intersect-1.html

			var v_prev_x = inPt.x - inPrev.x,
				v_prev_y = inPt.y - inPrev.y;
			var v_next_x = inNext.x - inPt.x,
				v_next_y = inNext.y - inPt.y;

			var v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );

			// check for collinear edges
			var collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );

			if ( Math.abs( collinear0 ) > Number.EPSILON ) {

				// not collinear

				// length of vectors for normalizing

				var v_prev_len = Math.sqrt( v_prev_lensq );
				var v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );

				// shift adjacent points by unit vectors to the left

				var ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );
				var ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );

				var ptNextShift_x = ( inNext.x - v_next_y / v_next_len );
				var ptNextShift_y = ( inNext.y + v_next_x / v_next_len );

				// scaling factor for v_prev to intersection point

				var sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -
						( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /
					( v_prev_x * v_next_y - v_prev_y * v_next_x );

				// vector from inPt to intersection point

				v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );
				v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );

				// Don't normalize!, otherwise sharp corners become ugly
				//  but prevent crazy spikes
				var v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );
				if ( v_trans_lensq <= 2 ) {

					return new Vector2( v_trans_x, v_trans_y );

				} else {

					shrink_by = Math.sqrt( v_trans_lensq / 2 );

				}

			} else {

				// handle special case of collinear edges

				var direction_eq = false; // assumes: opposite
				if ( v_prev_x > Number.EPSILON ) {

					if ( v_next_x > Number.EPSILON ) {

						direction_eq = true;

					}

				} else {

					if ( v_prev_x < - Number.EPSILON ) {

						if ( v_next_x < - Number.EPSILON ) {

							direction_eq = true;

						}

					} else {

						if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {

							direction_eq = true;

						}

					}

				}

				if ( direction_eq ) {

					// console.log("Warning: lines are a straight sequence");
					v_trans_x = - v_prev_y;
					v_trans_y = v_prev_x;
					shrink_by = Math.sqrt( v_prev_lensq );

				} else {

					// console.log("Warning: lines are a straight spike");
					v_trans_x = v_prev_x;
					v_trans_y = v_prev_y;
					shrink_by = Math.sqrt( v_prev_lensq / 2 );

				}

			}

			return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );

		}


		var contourMovements = [];

		for ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

			if ( j === il ) j = 0;
			if ( k === il ) k = 0;

			//  (j)---(i)---(k)
			// console.log('i,j,k', i, j , k)

			contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );

		}

		var holesMovements = [],
			oneHoleMovements, verticesMovements = contourMovements.concat();

		for ( h = 0, hl = holes.length; h < hl; h ++ ) {

			ahole = holes[ h ];

			oneHoleMovements = [];

			for ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {

				if ( j === il ) j = 0;
				if ( k === il ) k = 0;

				//  (j)---(i)---(k)
				oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );

			}

			holesMovements.push( oneHoleMovements );
			verticesMovements = verticesMovements.concat( oneHoleMovements );

		}


		// Loop bevelSegments, 1 for the front, 1 for the back

		for ( b = 0; b < bevelSegments; b ++ ) {

			//for ( b = bevelSegments; b > 0; b -- ) {

			t = b / bevelSegments;
			z = bevelThickness * Math.cos( t * Math.PI / 2 );
			bs = bevelSize * Math.sin( t * Math.PI / 2 );

			// contract shape

			for ( i = 0, il = contour.length; i < il; i ++ ) {

				vert = scalePt2( contour[ i ], contourMovements[ i ], bs );

				v( vert.x, vert.y, - z );

			}

			// expand holes

			for ( h = 0, hl = holes.length; h < hl; h ++ ) {

				ahole = holes[ h ];
				oneHoleMovements = holesMovements[ h ];

				for ( i = 0, il = ahole.length; i < il; i ++ ) {

					vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

					v( vert.x, vert.y, - z );

				}

			}

		}

		bs = bevelSize;

		// Back facing vertices

		for ( i = 0; i < vlen; i ++ ) {

			vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

			if ( ! extrudeByPath ) {

				v( vert.x, vert.y, 0 );

			} else {

				// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );

				normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );
				binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );

				position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );

				v( position2.x, position2.y, position2.z );

			}

		}

		// Add stepped vertices...
		// Including front facing vertices

		var s;

		for ( s = 1; s <= steps; s ++ ) {

			for ( i = 0; i < vlen; i ++ ) {

				vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];

				if ( ! extrudeByPath ) {

					v( vert.x, vert.y, amount / steps * s );

				} else {

					// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );

					normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );
					binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );

					position2.copy( extrudePts[ s ] ).add( normal ).add( binormal );

					v( position2.x, position2.y, position2.z );

				}

			}

		}


		// Add bevel segments planes

		//for ( b = 1; b <= bevelSegments; b ++ ) {
		for ( b = bevelSegments - 1; b >= 0; b -- ) {

			t = b / bevelSegments;
			z = bevelThickness * Math.cos( t * Math.PI / 2 );
			bs = bevelSize * Math.sin( t * Math.PI / 2 );

			// contract shape

			for ( i = 0, il = contour.length; i < il; i ++ ) {

				vert = scalePt2( contour[ i ], contourMovements[ i ], bs );
				v( vert.x, vert.y, amount + z );

			}

			// expand holes

			for ( h = 0, hl = holes.length; h < hl; h ++ ) {

				ahole = holes[ h ];
				oneHoleMovements = holesMovements[ h ];

				for ( i = 0, il = ahole.length; i < il; i ++ ) {

					vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );

					if ( ! extrudeByPath ) {

						v( vert.x, vert.y, amount + z );

					} else {

						v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );

					}

				}

			}

		}

		/* Faces */

		// Top and bottom faces

		buildLidFaces();

		// Sides faces

		buildSideFaces();


		/////  Internal functions

		function buildLidFaces() {

			var start = verticesArray.length/3;

			if ( bevelEnabled ) {

				var layer = 0; // steps + 1
				var offset = vlen * layer;

				// Bottom faces

				for ( i = 0; i < flen; i ++ ) {

					face = faces[ i ];
					f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );

				}

				layer = steps + bevelSegments * 2;
				offset = vlen * layer;

				// Top faces

				for ( i = 0; i < flen; i ++ ) {

					face = faces[ i ];
					f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );

				}

			} else {

				// Bottom faces

				for ( i = 0; i < flen; i ++ ) {

					face = faces[ i ];
					f3( face[ 2 ], face[ 1 ], face[ 0 ] );

				}

				// Top faces

				for ( i = 0; i < flen; i ++ ) {

					face = faces[ i ];
					f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );

				}

			}

			scope.addGroup( start, verticesArray.length/3 -start, options.material !== undefined ? options.material : 0);

		}

		// Create faces for the z-sides of the shape

		function buildSideFaces() {

			var start = verticesArray.length/3;
			var layeroffset = 0;
			sidewalls( contour, layeroffset );
			layeroffset += contour.length;

			for ( h = 0, hl = holes.length; h < hl; h ++ ) {

				ahole = holes[ h ];
				sidewalls( ahole, layeroffset );

				//, true
				layeroffset += ahole.length;

			}


			scope.addGroup( start, verticesArray.length/3 -start, options.extrudeMaterial !== undefined ? options.extrudeMaterial : 1);


		}

		function sidewalls( contour, layeroffset ) {

			var j, k;
			i = contour.length;

			while ( -- i >= 0 ) {

				j = i;
				k = i - 1;
				if ( k < 0 ) k = contour.length - 1;

				//console.log('b', i,j, i-1, k,vertices.length);

				var s = 0,
					sl = steps + bevelSegments * 2;

				for ( s = 0; s < sl; s ++ ) {

					var slen1 = vlen * s;
					var slen2 = vlen * ( s + 1 );

					var a = layeroffset + j + slen1,
						b = layeroffset + k + slen1,
						c = layeroffset + k + slen2,
						d = layeroffset + j + slen2;

					f4( a, b, c, d, contour, s, sl, j, k );

				}

			}

		}

		function v( x, y, z ) {

			placeholder.push( x );
			placeholder.push( y );
			placeholder.push( z );

		}


		function f3( a, b, c ) {

			addVertex( a );
			addVertex( b );
			addVertex( c );

			var nextIndex = verticesArray.length / 3;
			var uvs = uvgen.generateTopUV( scope, verticesArray, nextIndex - 3, nextIndex - 2, nextIndex - 1 );

			addUV( uvs[ 0 ] );
			addUV( uvs[ 1 ] );
			addUV( uvs[ 2 ] );

		}

		function f4( a, b, c, d, wallContour, stepIndex, stepsLength, contourIndex1, contourIndex2 ) {

			addVertex( a );
			addVertex( b );
			addVertex( d );

			addVertex( b );
			addVertex( c );
			addVertex( d );


			var nextIndex = verticesArray.length / 3;
			var uvs = uvgen.generateSideWallUV( scope, verticesArray, nextIndex - 6, nextIndex - 3, nextIndex - 2, nextIndex - 1 );

			addUV( uvs[ 0 ] );
			addUV( uvs[ 1 ] );
			addUV( uvs[ 3 ] );

			addUV( uvs[ 1 ] );
			addUV( uvs[ 2 ] );
			addUV( uvs[ 3 ] );

		}

		function addVertex( index ) {

			indicesArray.push( verticesArray.length / 3 );
			verticesArray.push( placeholder[ index * 3 + 0 ] );
			verticesArray.push( placeholder[ index * 3 + 1 ] );
			verticesArray.push( placeholder[ index * 3 + 2 ] );

		}


		function addUV( vector2 ) {

			uvArray.push( vector2.x );
			uvArray.push( vector2.y );

		}

		if ( ! options.arrays ) {

			this.setIndex( indicesArray );
			this.addAttribute( 'position', new Float32BufferAttribute( verticesArray, 3 ) );
			this.addAttribute( 'uv', new Float32BufferAttribute( options.arrays.uv, 2 ) );

		}

	};

	ExtrudeGeometry.WorldUVGenerator = {

		generateTopUV: function ( geometry, vertices, indexA, indexB, indexC ) {

			var a_x = vertices[ indexA * 3 ];
			var a_y = vertices[ indexA * 3 + 1 ];
			var b_x = vertices[ indexB * 3 ];
			var b_y = vertices[ indexB * 3 + 1 ];
			var c_x = vertices[ indexC * 3 ];
			var c_y = vertices[ indexC * 3 + 1 ];

			return [
				new Vector2( a_x, a_y ),
				new Vector2( b_x, b_y ),
				new Vector2( c_x, c_y )
			];

		},

		generateSideWallUV: function ( geometry, vertices, indexA, indexB, indexC, indexD ) {

			var a_x = vertices[ indexA * 3 ];
			var a_y = vertices[ indexA * 3 + 1 ];
			var a_z = vertices[ indexA * 3 + 2 ];
			var b_x = vertices[ indexB * 3 ];
			var b_y = vertices[ indexB * 3 + 1 ];
			var b_z = vertices[ indexB * 3 + 2 ];
			var c_x = vertices[ indexC * 3 ];
			var c_y = vertices[ indexC * 3 + 1 ];
			var c_z = vertices[ indexC * 3 + 2 ];
			var d_x = vertices[ indexD * 3 ];
			var d_y = vertices[ indexD * 3 + 1 ];
			var d_z = vertices[ indexD * 3 + 2 ];

			if ( Math.abs( a_y - b_y ) < 0.01 ) {

				return [
					new Vector2( a_x, 1 - a_z ),
					new Vector2( b_x, 1 - b_z ),
					new Vector2( c_x, 1 - c_z ),
					new Vector2( d_x, 1 - d_z )
				];

			} else {

				return [
					new Vector2( a_y, 1 - a_z ),
					new Vector2( b_y, 1 - b_z ),
					new Vector2( c_y, 1 - c_z ),
					new Vector2( d_y, 1 - d_z )
				];

			}

		}
	};

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * Text = 3D Text
	 *
	 * parameters = {
	 *  font: <THREE.Font>, // font
	 *
	 *  size: <float>, // size of the text
	 *  height: <float>, // thickness to extrude text
	 *  curveSegments: <int>, // number of points on the curves
	 *
	 *  bevelEnabled: <bool>, // turn on bevel
	 *  bevelThickness: <float>, // how deep into text bevel goes
	 *  bevelSize: <float> // how far from text outline is bevel
	 * }
	 */

	// TextGeometry

	function TextGeometry(  text, parameters ) {

		Geometry.call( this );

		this.type = 'TextGeometry';

		this.parameters = {
			text: text,
			parameters: parameters
		};

		this.fromBufferGeometry( new TextBufferGeometry( text, parameters ) );
		this.mergeVertices();

	}

	TextGeometry.prototype = Object.create( Geometry.prototype );
	TextGeometry.prototype.constructor = TextGeometry;

	// TextBufferGeometry

	function TextBufferGeometry( text, parameters ) {

		parameters = parameters || {};

		var font = parameters.font;

		if ( ! ( font && font.isFont ) ) {

			console.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' );
			return new Geometry();

		}

		var shapes = font.generateShapes( text, parameters.size, parameters.curveSegments );

		// translate parameters to ExtrudeGeometry API

		parameters.amount = parameters.height !== undefined ? parameters.height : 50;

		// defaults

		if ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10;
		if ( parameters.bevelSize === undefined ) parameters.bevelSize = 8;
		if ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false;

		ExtrudeBufferGeometry.call( this, shapes, parameters );

		this.type = 'TextBufferGeometry';

	}

	TextBufferGeometry.prototype = Object.create( ExtrudeBufferGeometry.prototype );
	TextBufferGeometry.prototype.constructor = TextBufferGeometry;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author benaadams / https://twitter.com/ben_a_adams
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// SphereGeometry

	function SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {

		Geometry.call( this );

		this.type = 'SphereGeometry';

		this.parameters = {
			radius: radius,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			phiStart: phiStart,
			phiLength: phiLength,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		this.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );
		this.mergeVertices();

	}

	SphereGeometry.prototype = Object.create( Geometry.prototype );
	SphereGeometry.prototype.constructor = SphereGeometry;

	// SphereBufferGeometry

	function SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {

		BufferGeometry.call( this );

		this.type = 'SphereBufferGeometry';

		this.parameters = {
			radius: radius,
			widthSegments: widthSegments,
			heightSegments: heightSegments,
			phiStart: phiStart,
			phiLength: phiLength,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		radius = radius || 50;

		widthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );
		heightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );

		phiStart = phiStart !== undefined ? phiStart : 0;
		phiLength = phiLength !== undefined ? phiLength : Math.PI * 2;

		thetaStart = thetaStart !== undefined ? thetaStart : 0;
		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI;

		var thetaEnd = thetaStart + thetaLength;

		var ix, iy;

		var index = 0;
		var grid = [];

		var vertex = new Vector3();
		var normal = new Vector3();

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// generate vertices, normals and uvs

		for ( iy = 0; iy <= heightSegments; iy ++ ) {

			var verticesRow = [];

			var v = iy / heightSegments;

			for ( ix = 0; ix <= widthSegments; ix ++ ) {

				var u = ix / widthSegments;

				// vertex

				vertex.x = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );
				vertex.y = radius * Math.cos( thetaStart + v * thetaLength );
				vertex.z = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				normal.set( vertex.x, vertex.y, vertex.z ).normalize();
				normals.push( normal.x, normal.y, normal.z );

				// uv

				uvs.push( u, 1 - v );

				verticesRow.push( index ++ );

			}

			grid.push( verticesRow );

		}

		// indices

		for ( iy = 0; iy < heightSegments; iy ++ ) {

			for ( ix = 0; ix < widthSegments; ix ++ ) {

				var a = grid[ iy ][ ix + 1 ];
				var b = grid[ iy ][ ix ];
				var c = grid[ iy + 1 ][ ix ];
				var d = grid[ iy + 1 ][ ix + 1 ];

				if ( iy !== 0 || thetaStart > 0 ) indices.push( a, b, d );
				if ( iy !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	SphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	SphereBufferGeometry.prototype.constructor = SphereBufferGeometry;

	/**
	 * @author Kaleb Murphy
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// RingGeometry

	function RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {

		Geometry.call( this );

		this.type = 'RingGeometry';

		this.parameters = {
			innerRadius: innerRadius,
			outerRadius: outerRadius,
			thetaSegments: thetaSegments,
			phiSegments: phiSegments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		this.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) );
		this.mergeVertices();

	}

	RingGeometry.prototype = Object.create( Geometry.prototype );
	RingGeometry.prototype.constructor = RingGeometry;

	// RingBufferGeometry

	function RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {

		BufferGeometry.call( this );

		this.type = 'RingBufferGeometry';

		this.parameters = {
			innerRadius: innerRadius,
			outerRadius: outerRadius,
			thetaSegments: thetaSegments,
			phiSegments: phiSegments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		innerRadius = innerRadius || 20;
		outerRadius = outerRadius || 50;

		thetaStart = thetaStart !== undefined ? thetaStart : 0;
		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;

		thetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;
		phiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// some helper variables

		var segment;
		var radius = innerRadius;
		var radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );
		var vertex = new Vector3();
		var uv = new Vector2();
		var j, i;

		// generate vertices, normals and uvs

		for ( j = 0; j <= phiSegments; j ++ ) {

			for ( i = 0; i <= thetaSegments; i ++ ) {

				// values are generate from the inside of the ring to the outside

				segment = thetaStart + i / thetaSegments * thetaLength;

				// vertex

				vertex.x = radius * Math.cos( segment );
				vertex.y = radius * Math.sin( segment );

				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				normals.push( 0, 0, 1 );

				// uv

				uv.x = ( vertex.x / outerRadius + 1 ) / 2;
				uv.y = ( vertex.y / outerRadius + 1 ) / 2;

				uvs.push( uv.x, uv.y );

			}

			// increase the radius for next row of vertices

			radius += radiusStep;

		}

		// indices

		for ( j = 0; j < phiSegments; j ++ ) {

			var thetaSegmentLevel = j * ( thetaSegments + 1 );

			for ( i = 0; i < thetaSegments; i ++ ) {

				segment = i + thetaSegmentLevel;

				var a = segment;
				var b = segment + thetaSegments + 1;
				var c = segment + thetaSegments + 2;
				var d = segment + 1;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	RingBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	RingBufferGeometry.prototype.constructor = RingBufferGeometry;

	/**
	 * @author astrodud / http://astrodud.isgreat.org/
	 * @author zz85 / https://github.com/zz85
	 * @author bhouston / http://clara.io
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// LatheGeometry

	function LatheGeometry( points, segments, phiStart, phiLength ) {

		Geometry.call( this );

		this.type = 'LatheGeometry';

		this.parameters = {
			points: points,
			segments: segments,
			phiStart: phiStart,
			phiLength: phiLength
		};

		this.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) );
		this.mergeVertices();

	}

	LatheGeometry.prototype = Object.create( Geometry.prototype );
	LatheGeometry.prototype.constructor = LatheGeometry;

	// LatheBufferGeometry

	function LatheBufferGeometry( points, segments, phiStart, phiLength ) {

		BufferGeometry.call( this );

		this.type = 'LatheBufferGeometry';

		this.parameters = {
			points: points,
			segments: segments,
			phiStart: phiStart,
			phiLength: phiLength
		};

		segments = Math.floor( segments ) || 12;
		phiStart = phiStart || 0;
		phiLength = phiLength || Math.PI * 2;

		// clamp phiLength so it's in range of [ 0, 2PI ]

		phiLength = _Math.clamp( phiLength, 0, Math.PI * 2 );


		// buffers

		var indices = [];
		var vertices = [];
		var uvs = [];

		// helper variables

		var base;
		var inverseSegments = 1.0 / segments;
		var vertex = new Vector3();
		var uv = new Vector2();
		var i, j;

		// generate vertices and uvs

		for ( i = 0; i <= segments; i ++ ) {

			var phi = phiStart + i * inverseSegments * phiLength;

			var sin = Math.sin( phi );
			var cos = Math.cos( phi );

			for ( j = 0; j <= ( points.length - 1 ); j ++ ) {

				// vertex

				vertex.x = points[ j ].x * sin;
				vertex.y = points[ j ].y;
				vertex.z = points[ j ].x * cos;

				vertices.push( vertex.x, vertex.y, vertex.z );

				// uv

				uv.x = i / segments;
				uv.y = j / ( points.length - 1 );

				uvs.push( uv.x, uv.y );


			}

		}

		// indices

		for ( i = 0; i < segments; i ++ ) {

			for ( j = 0; j < ( points.length - 1 ); j ++ ) {

				base = j + i * points.length;

				var a = base;
				var b = base + points.length;
				var c = base + points.length + 1;
				var d = base + 1;

				// faces

				indices.push( a, b, d );
				indices.push( b, c, d );

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		// generate normals

		this.computeVertexNormals();

		// if the geometry is closed, we need to average the normals along the seam.
		// because the corresponding vertices are identical (but still have different UVs).

		if ( phiLength === Math.PI * 2 ) {

			var normals = this.attributes.normal.array;
			var n1 = new Vector3();
			var n2 = new Vector3();
			var n = new Vector3();

			// this is the buffer offset for the last line of vertices

			base = segments * points.length * 3;

			for ( i = 0, j = 0; i < points.length; i ++, j += 3 ) {

				// select the normal of the vertex in the first line

				n1.x = normals[ j + 0 ];
				n1.y = normals[ j + 1 ];
				n1.z = normals[ j + 2 ];

				// select the normal of the vertex in the last line

				n2.x = normals[ base + j + 0 ];
				n2.y = normals[ base + j + 1 ];
				n2.z = normals[ base + j + 2 ];

				// average normals

				n.addVectors( n1, n2 ).normalize();

				// assign the new values to both normals

				normals[ j + 0 ] = normals[ base + j + 0 ] = n.x;
				normals[ j + 1 ] = normals[ base + j + 1 ] = n.y;
				normals[ j + 2 ] = normals[ base + j + 2 ] = n.z;

			}

		}

	}

	LatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	LatheBufferGeometry.prototype.constructor = LatheBufferGeometry;

	/**
	 * @author jonobr1 / http://jonobr1.com
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// ShapeGeometry

	function ShapeGeometry( shapes, curveSegments ) {

		Geometry.call( this );

		this.type = 'ShapeGeometry';

		if ( typeof curveSegments === 'object' ) {

			console.warn( 'THREE.ShapeGeometry: Options parameter has been removed.' );

			curveSegments = curveSegments.curveSegments;

		}

		this.parameters = {
			shapes: shapes,
			curveSegments: curveSegments
		};

		this.fromBufferGeometry( new ShapeBufferGeometry( shapes, curveSegments ) );
		this.mergeVertices();

	}

	ShapeGeometry.prototype = Object.create( Geometry.prototype );
	ShapeGeometry.prototype.constructor = ShapeGeometry;

	// ShapeBufferGeometry

	function ShapeBufferGeometry( shapes, curveSegments ) {

		BufferGeometry.call( this );

		this.type = 'ShapeBufferGeometry';

		this.parameters = {
			shapes: shapes,
			curveSegments: curveSegments
		};

		curveSegments = curveSegments || 12;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var groupStart = 0;
		var groupCount = 0;

		// allow single and array values for "shapes" parameter

		if ( Array.isArray( shapes ) === false ) {

			addShape( shapes );

		} else {

			for ( var i = 0; i < shapes.length; i ++ ) {

				addShape( shapes[ i ] );

				this.addGroup( groupStart, groupCount, i ); // enables MultiMaterial support

				groupStart += groupCount;
				groupCount = 0;

			}

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );


		// helper functions

		function addShape( shape ) {

			var i, l, shapeHole;

			var indexOffset = vertices.length / 3;
			var points = shape.extractPoints( curveSegments );

			var shapeVertices = points.shape;
			var shapeHoles = points.holes;

			// check direction of vertices

			if ( ShapeUtils.isClockWise( shapeVertices ) === false ) {

				shapeVertices = shapeVertices.reverse();

				// also check if holes are in the opposite direction

				for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {

					shapeHole = shapeHoles[ i ];

					if ( ShapeUtils.isClockWise( shapeHole ) === true ) {

						shapeHoles[ i ] = shapeHole.reverse();

					}

				}

			}

			var faces = ShapeUtils.triangulateShape( shapeVertices, shapeHoles );

			// join vertices of inner and outer paths to a single array

			for ( i = 0, l = shapeHoles.length; i < l; i ++ ) {

				shapeHole = shapeHoles[ i ];
				shapeVertices = shapeVertices.concat( shapeHole );

			}

			// vertices, normals, uvs

			for ( i = 0, l = shapeVertices.length; i < l; i ++ ) {

				var vertex = shapeVertices[ i ];

				vertices.push( vertex.x, vertex.y, 0 );
				normals.push( 0, 0, 1 );
				uvs.push( vertex.x, vertex.y ); // world uvs

			}

			// incides

			for ( i = 0, l = faces.length; i < l; i ++ ) {

				var face = faces[ i ];

				var a = face[ 0 ] + indexOffset;
				var b = face[ 1 ] + indexOffset;
				var c = face[ 2 ] + indexOffset;

				indices.push( a, b, c );
				groupCount += 3;

			}

		}

	}

	ShapeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	ShapeBufferGeometry.prototype.constructor = ShapeBufferGeometry;

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function EdgesGeometry( geometry, thresholdAngle ) {

		BufferGeometry.call( this );

		this.type = 'EdgesGeometry';

		this.parameters = {
			thresholdAngle: thresholdAngle
		};

		thresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;

		// buffer

		var vertices = [];

		// helper variables

		var thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle );
		var edge = [ 0, 0 ], edges = {}, edge1, edge2;
		var key, keys = [ 'a', 'b', 'c' ];

		// prepare source geometry

		var geometry2;

		if ( geometry.isBufferGeometry ) {

			geometry2 = new Geometry();
			geometry2.fromBufferGeometry( geometry );

		} else {

			geometry2 = geometry.clone();

		}

		geometry2.mergeVertices();
		geometry2.computeFaceNormals();

		var sourceVertices = geometry2.vertices;
		var faces = geometry2.faces;

		// now create a data structure where each entry represents an edge with its adjoining faces

		for ( var i = 0, l = faces.length; i < l; i ++ ) {

			var face = faces[ i ];

			for ( var j = 0; j < 3; j ++ ) {

				edge1 = face[ keys[ j ] ];
				edge2 = face[ keys[ ( j + 1 ) % 3 ] ];
				edge[ 0 ] = Math.min( edge1, edge2 );
				edge[ 1 ] = Math.max( edge1, edge2 );

				key = edge[ 0 ] + ',' + edge[ 1 ];

				if ( edges[ key ] === undefined ) {

					edges[ key ] = { index1: edge[ 0 ], index2: edge[ 1 ], face1: i, face2: undefined };

				} else {

					edges[ key ].face2 = i;

				}

			}

		}

		// generate vertices

		for ( key in edges ) {

			var e = edges[ key ];

			// an edge is only rendered if the angle (in degrees) between the face normals of the adjoining faces exceeds this value. default = 1 degree.

			if ( e.face2 === undefined || faces[ e.face1 ].normal.dot( faces[ e.face2 ].normal ) <= thresholdDot ) {

				var vertex = sourceVertices[ e.index1 ];
				vertices.push( vertex.x, vertex.y, vertex.z );

				vertex = sourceVertices[ e.index2 ];
				vertices.push( vertex.x, vertex.y, vertex.z );

			}

		}

		// build geometry

		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );

	}

	EdgesGeometry.prototype = Object.create( BufferGeometry.prototype );
	EdgesGeometry.prototype.constructor = EdgesGeometry;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	// CylinderGeometry

	function CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

		Geometry.call( this );

		this.type = 'CylinderGeometry';

		this.parameters = {
			radiusTop: radiusTop,
			radiusBottom: radiusBottom,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		this.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) );
		this.mergeVertices();

	}

	CylinderGeometry.prototype = Object.create( Geometry.prototype );
	CylinderGeometry.prototype.constructor = CylinderGeometry;

	// CylinderBufferGeometry

	function CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

		BufferGeometry.call( this );

		this.type = 'CylinderBufferGeometry';

		this.parameters = {
			radiusTop: radiusTop,
			radiusBottom: radiusBottom,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		var scope = this;

		radiusTop = radiusTop !== undefined ? radiusTop : 20;
		radiusBottom = radiusBottom !== undefined ? radiusBottom : 20;
		height = height !== undefined ? height : 100;

		radialSegments = Math.floor( radialSegments ) || 8;
		heightSegments = Math.floor( heightSegments ) || 1;

		openEnded = openEnded !== undefined ? openEnded : false;
		thetaStart = thetaStart !== undefined ? thetaStart : 0.0;
		thetaLength = thetaLength !== undefined ? thetaLength : 2.0 * Math.PI;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var index = 0;
		var indexArray = [];
		var halfHeight = height / 2;
		var groupStart = 0;

		// generate geometry

		generateTorso();

		if ( openEnded === false ) {

			if ( radiusTop > 0 ) generateCap( true );
			if ( radiusBottom > 0 ) generateCap( false );

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

		function generateTorso() {

			var x, y;
			var normal = new Vector3();
			var vertex = new Vector3();

			var groupCount = 0;

			// this will be used to calculate the normal
			var slope = ( radiusBottom - radiusTop ) / height;

			// generate vertices, normals and uvs

			for ( y = 0; y <= heightSegments; y ++ ) {

				var indexRow = [];

				var v = y / heightSegments;

				// calculate the radius of the current row

				var radius = v * ( radiusBottom - radiusTop ) + radiusTop;

				for ( x = 0; x <= radialSegments; x ++ ) {

					var u = x / radialSegments;

					var theta = u * thetaLength + thetaStart;

					var sinTheta = Math.sin( theta );
					var cosTheta = Math.cos( theta );

					// vertex

					vertex.x = radius * sinTheta;
					vertex.y = - v * height + halfHeight;
					vertex.z = radius * cosTheta;
					vertices.push( vertex.x, vertex.y, vertex.z );

					// normal

					normal.set( sinTheta, slope, cosTheta ).normalize();
					normals.push( normal.x, normal.y, normal.z );

					// uv

					uvs.push( u, 1 - v );

					// save index of vertex in respective row

					indexRow.push( index ++ );

				}

				// now save vertices of the row in our index array

				indexArray.push( indexRow );

			}

			// generate indices

			for ( x = 0; x < radialSegments; x ++ ) {

				for ( y = 0; y < heightSegments; y ++ ) {

					// we use the index array to access the correct indices

					var a = indexArray[ y ][ x ];
					var b = indexArray[ y + 1 ][ x ];
					var c = indexArray[ y + 1 ][ x + 1 ];
					var d = indexArray[ y ][ x + 1 ];

					// faces

					indices.push( a, b, d );
					indices.push( b, c, d );

					// update group counter

					groupCount += 6;

				}

			}

			// add a group to the geometry. this will ensure multi material support

			scope.addGroup( groupStart, groupCount, 0 );

			// calculate new start value for groups

			groupStart += groupCount;

		}

		function generateCap( top ) {

			var x, centerIndexStart, centerIndexEnd;

			var uv = new Vector2();
			var vertex = new Vector3();

			var groupCount = 0;

			var radius = ( top === true ) ? radiusTop : radiusBottom;
			var sign = ( top === true ) ? 1 : - 1;

			// save the index of the first center vertex
			centerIndexStart = index;

			// first we generate the center vertex data of the cap.
			// because the geometry needs one set of uvs per face,
			// we must generate a center vertex per face/segment

			for ( x = 1; x <= radialSegments; x ++ ) {

				// vertex

				vertices.push( 0, halfHeight * sign, 0 );

				// normal

				normals.push( 0, sign, 0 );

				// uv

				uvs.push( 0.5, 0.5 );

				// increase index

				index ++;

			}

			// save the index of the last center vertex

			centerIndexEnd = index;

			// now we generate the surrounding vertices, normals and uvs

			for ( x = 0; x <= radialSegments; x ++ ) {

				var u = x / radialSegments;
				var theta = u * thetaLength + thetaStart;

				var cosTheta = Math.cos( theta );
				var sinTheta = Math.sin( theta );

				// vertex

				vertex.x = radius * sinTheta;
				vertex.y = halfHeight * sign;
				vertex.z = radius * cosTheta;
				vertices.push( vertex.x, vertex.y, vertex.z );

				// normal

				normals.push( 0, sign, 0 );

				// uv

				uv.x = ( cosTheta * 0.5 ) + 0.5;
				uv.y = ( sinTheta * 0.5 * sign ) + 0.5;
				uvs.push( uv.x, uv.y );

				// increase index

				index ++;

			}

			// generate indices

			for ( x = 0; x < radialSegments; x ++ ) {

				var c = centerIndexStart + x;
				var i = centerIndexEnd + x;

				if ( top === true ) {

					// face top

					indices.push( i, i + 1, c );

				} else {

					// face bottom

					indices.push( i + 1, i, c );

				}

				groupCount += 3;

			}

			// add a group to the geometry. this will ensure multi material support

			scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );

			// calculate new start value for groups

			groupStart += groupCount;

		}

	}

	CylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	CylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry;

	/**
	 * @author abelnation / http://github.com/abelnation
	 */

	// ConeGeometry

	function ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

		CylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );

		this.type = 'ConeGeometry';

		this.parameters = {
			radius: radius,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

	}

	ConeGeometry.prototype = Object.create( CylinderGeometry.prototype );
	ConeGeometry.prototype.constructor = ConeGeometry;

	// ConeBufferGeometry

	function ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {

		CylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );

		this.type = 'ConeBufferGeometry';

		this.parameters = {
			radius: radius,
			height: height,
			radialSegments: radialSegments,
			heightSegments: heightSegments,
			openEnded: openEnded,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

	}

	ConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype );
	ConeBufferGeometry.prototype.constructor = ConeBufferGeometry;

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 * @author Mugen87 / https://github.com/Mugen87
	 * @author hughes
	 */

	// CircleGeometry

	function CircleGeometry( radius, segments, thetaStart, thetaLength ) {

		Geometry.call( this );

		this.type = 'CircleGeometry';

		this.parameters = {
			radius: radius,
			segments: segments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		this.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );
		this.mergeVertices();

	}

	CircleGeometry.prototype = Object.create( Geometry.prototype );
	CircleGeometry.prototype.constructor = CircleGeometry;

	// CircleBufferGeometry

	function CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) {

		BufferGeometry.call( this );

		this.type = 'CircleBufferGeometry';

		this.parameters = {
			radius: radius,
			segments: segments,
			thetaStart: thetaStart,
			thetaLength: thetaLength
		};

		radius = radius || 50;
		segments = segments !== undefined ? Math.max( 3, segments ) : 8;

		thetaStart = thetaStart !== undefined ? thetaStart : 0;
		thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;

		// buffers

		var indices = [];
		var vertices = [];
		var normals = [];
		var uvs = [];

		// helper variables

		var i, s;
		var vertex = new Vector3();
		var uv = new Vector2();

		// center point

		vertices.push( 0, 0, 0 );
		normals.push( 0, 0, 1 );
		uvs.push( 0.5, 0.5 );

		for ( s = 0, i = 3; s <= segments; s ++, i += 3 ) {

			var segment = thetaStart + s / segments * thetaLength;

			// vertex

			vertex.x = radius * Math.cos( segment );
			vertex.y = radius * Math.sin( segment );

			vertices.push( vertex.x, vertex.y, vertex.z );

			// normal

			normals.push( 0, 0, 1 );

			// uvs

			uv.x = ( vertices[ i ] / radius + 1 ) / 2;
			uv.y = ( vertices[ i + 1 ] / radius + 1 ) / 2;

			uvs.push( uv.x, uv.y );

		}

		// indices

		for ( i = 1; i <= segments; i ++ ) {

			indices.push( i, i + 1, 0 );

		}

		// build geometry

		this.setIndex( indices );
		this.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		this.addAttribute( 'normal', new Float32BufferAttribute( normals, 3 ) );
		this.addAttribute( 'uv', new Float32BufferAttribute( uvs, 2 ) );

	}

	CircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype );
	CircleBufferGeometry.prototype.constructor = CircleBufferGeometry;



	var Geometries = Object.freeze({
		WireframeGeometry: WireframeGeometry,
		ParametricGeometry: ParametricGeometry,
		ParametricBufferGeometry: ParametricBufferGeometry,
		TetrahedronGeometry: TetrahedronGeometry,
		TetrahedronBufferGeometry: TetrahedronBufferGeometry,
		OctahedronGeometry: OctahedronGeometry,
		OctahedronBufferGeometry: OctahedronBufferGeometry,
		IcosahedronGeometry: IcosahedronGeometry,
		IcosahedronBufferGeometry: IcosahedronBufferGeometry,
		DodecahedronGeometry: DodecahedronGeometry,
		DodecahedronBufferGeometry: DodecahedronBufferGeometry,
		PolyhedronGeometry: PolyhedronGeometry,
		PolyhedronBufferGeometry: PolyhedronBufferGeometry,
		TubeGeometry: TubeGeometry,
		TubeBufferGeometry: TubeBufferGeometry,
		TorusKnotGeometry: TorusKnotGeometry,
		TorusKnotBufferGeometry: TorusKnotBufferGeometry,
		TorusGeometry: TorusGeometry,
		TorusBufferGeometry: TorusBufferGeometry,
		TextGeometry: TextGeometry,
		TextBufferGeometry: TextBufferGeometry,
		SphereGeometry: SphereGeometry,
		SphereBufferGeometry: SphereBufferGeometry,
		RingGeometry: RingGeometry,
		RingBufferGeometry: RingBufferGeometry,
		PlaneGeometry: PlaneGeometry,
		PlaneBufferGeometry: PlaneBufferGeometry,
		LatheGeometry: LatheGeometry,
		LatheBufferGeometry: LatheBufferGeometry,
		ShapeGeometry: ShapeGeometry,
		ShapeBufferGeometry: ShapeBufferGeometry,
		ExtrudeGeometry: ExtrudeGeometry,
		ExtrudeBufferGeometry: ExtrudeBufferGeometry,
		EdgesGeometry: EdgesGeometry,
		ConeGeometry: ConeGeometry,
		ConeBufferGeometry: ConeBufferGeometry,
		CylinderGeometry: CylinderGeometry,
		CylinderBufferGeometry: CylinderBufferGeometry,
		CircleGeometry: CircleGeometry,
		CircleBufferGeometry: CircleBufferGeometry,
		BoxGeometry: BoxGeometry,
		BoxBufferGeometry: BoxBufferGeometry
	});

	/**
	 * @author mrdoob / http://mrdoob.com/
	 *
	 * parameters = {
	 *  opacity: <float>
	 * }
	 */

	function ShadowMaterial( parameters ) {

		ShaderMaterial.call( this, {
			uniforms: UniformsUtils.merge( [
				UniformsLib.lights,
				{
					opacity: { value: 1.0 }
				}
			] ),
			vertexShader: ShaderChunk[ 'shadow_vert' ],
			fragmentShader: ShaderChunk[ 'shadow_frag' ]
		} );

		this.lights = true;
		this.transparent = true;

		Object.defineProperties( this, {
			opacity: {
				enumerable: true,
				get: function () {
					return this.uniforms.opacity.value;
				},
				set: function ( value ) {
					this.uniforms.opacity.value = value;
				}
			}
		} );

		this.setValues( parameters );

	}

	ShadowMaterial.prototype = Object.create( ShaderMaterial.prototype );
	ShadowMaterial.prototype.constructor = ShadowMaterial;

	ShadowMaterial.prototype.isShadowMaterial = true;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function RawShaderMaterial( parameters ) {

		ShaderMaterial.call( this, parameters );

		this.type = 'RawShaderMaterial';

	}

	RawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype );
	RawShaderMaterial.prototype.constructor = RawShaderMaterial;

	RawShaderMaterial.prototype.isRawShaderMaterial = true;

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  roughness: <float>,
	 *  metalness: <float>,
	 *  opacity: <float>,
	 *
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  lightMap: new THREE.Texture( <Image> ),
	 *  lightMapIntensity: <float>
	 *
	 *  aoMap: new THREE.Texture( <Image> ),
	 *  aoMapIntensity: <float>
	 *
	 *  emissive: <hex>,
	 *  emissiveIntensity: <float>
	 *  emissiveMap: new THREE.Texture( <Image> ),
	 *
	 *  bumpMap: new THREE.Texture( <Image> ),
	 *  bumpScale: <float>,
	 *
	 *  normalMap: new THREE.Texture( <Image> ),
	 *  normalScale: <Vector2>,
	 *
	 *  displacementMap: new THREE.Texture( <Image> ),
	 *  displacementScale: <float>,
	 *  displacementBias: <float>,
	 *
	 *  roughnessMap: new THREE.Texture( <Image> ),
	 *
	 *  metalnessMap: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
	 *  envMapIntensity: <float>
	 *
	 *  refractionRatio: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function MeshStandardMaterial( parameters ) {

		Material.call( this );

		this.defines = { 'STANDARD': '' };

		this.type = 'MeshStandardMaterial';

		this.color = new Color( 0xffffff ); // diffuse
		this.roughness = 0.5;
		this.metalness = 0.5;

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.roughnessMap = null;

		this.metalnessMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.envMapIntensity = 1.0;

		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.skinning = false;
		this.morphTargets = false;
		this.morphNormals = false;

		this.setValues( parameters );

	}

	MeshStandardMaterial.prototype = Object.create( Material.prototype );
	MeshStandardMaterial.prototype.constructor = MeshStandardMaterial;

	MeshStandardMaterial.prototype.isMeshStandardMaterial = true;

	MeshStandardMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.defines = { 'STANDARD': '' };

		this.color.copy( source.color );
		this.roughness = source.roughness;
		this.metalness = source.metalness;

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.roughnessMap = source.roughnessMap;

		this.metalnessMap = source.metalnessMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.envMapIntensity = source.envMapIntensity;

		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		return this;

	};

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * parameters = {
	 *  reflectivity: <float>
	 * }
	 */

	function MeshPhysicalMaterial( parameters ) {

		MeshStandardMaterial.call( this );

		this.defines = { 'PHYSICAL': '' };

		this.type = 'MeshPhysicalMaterial';

		this.reflectivity = 0.5; // maps to F0 = 0.04

		this.clearCoat = 0.0;
		this.clearCoatRoughness = 0.0;

		this.setValues( parameters );

	}

	MeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype );
	MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;

	MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;

	MeshPhysicalMaterial.prototype.copy = function ( source ) {

		MeshStandardMaterial.prototype.copy.call( this, source );

		this.defines = { 'PHYSICAL': '' };

		this.reflectivity = source.reflectivity;

		this.clearCoat = source.clearCoat;
		this.clearCoatRoughness = source.clearCoatRoughness;

		return this;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  specular: <hex>,
	 *  shininess: <float>,
	 *  opacity: <float>,
	 *
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  lightMap: new THREE.Texture( <Image> ),
	 *  lightMapIntensity: <float>
	 *
	 *  aoMap: new THREE.Texture( <Image> ),
	 *  aoMapIntensity: <float>
	 *
	 *  emissive: <hex>,
	 *  emissiveIntensity: <float>
	 *  emissiveMap: new THREE.Texture( <Image> ),
	 *
	 *  bumpMap: new THREE.Texture( <Image> ),
	 *  bumpScale: <float>,
	 *
	 *  normalMap: new THREE.Texture( <Image> ),
	 *  normalScale: <Vector2>,
	 *
	 *  displacementMap: new THREE.Texture( <Image> ),
	 *  displacementScale: <float>,
	 *  displacementBias: <float>,
	 *
	 *  specularMap: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
	 *  combine: THREE.Multiply,
	 *  reflectivity: <float>,
	 *  refractionRatio: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function MeshPhongMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshPhongMaterial';

		this.color = new Color( 0xffffff ); // diffuse
		this.specular = new Color( 0x111111 );
		this.shininess = 30;

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.specularMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.skinning = false;
		this.morphTargets = false;
		this.morphNormals = false;

		this.setValues( parameters );

	}

	MeshPhongMaterial.prototype = Object.create( Material.prototype );
	MeshPhongMaterial.prototype.constructor = MeshPhongMaterial;

	MeshPhongMaterial.prototype.isMeshPhongMaterial = true;

	MeshPhongMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );
		this.specular.copy( source.specular );
		this.shininess = source.shininess;

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.specularMap = source.specularMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		return this;

	};

	/**
	 * @author takahirox / http://github.com/takahirox
	 *
	 * parameters = {
	 *  gradientMap: new THREE.Texture( <Image> )
	 * }
	 */

	function MeshToonMaterial( parameters ) {

		MeshPhongMaterial.call( this );

		this.defines = { 'TOON': '' };

		this.type = 'MeshToonMaterial';

		this.gradientMap = null;

		this.setValues( parameters );

	}

	MeshToonMaterial.prototype = Object.create( MeshPhongMaterial.prototype );
	MeshToonMaterial.prototype.constructor = MeshToonMaterial;

	MeshToonMaterial.prototype.isMeshToonMaterial = true;

	MeshToonMaterial.prototype.copy = function ( source ) {

		MeshPhongMaterial.prototype.copy.call( this, source );

		this.gradientMap = source.gradientMap;

		return this;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * parameters = {
	 *  opacity: <float>,
	 *
	 *  bumpMap: new THREE.Texture( <Image> ),
	 *  bumpScale: <float>,
	 *
	 *  normalMap: new THREE.Texture( <Image> ),
	 *  normalScale: <Vector2>,
	 *
	 *  displacementMap: new THREE.Texture( <Image> ),
	 *  displacementScale: <float>,
	 *  displacementBias: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function MeshNormalMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshNormalMaterial';

		this.bumpMap = null;
		this.bumpScale = 1;

		this.normalMap = null;
		this.normalScale = new Vector2( 1, 1 );

		this.displacementMap = null;
		this.displacementScale = 1;
		this.displacementBias = 0;

		this.wireframe = false;
		this.wireframeLinewidth = 1;

		this.fog = false;
		this.lights = false;

		this.skinning = false;
		this.morphTargets = false;
		this.morphNormals = false;

		this.setValues( parameters );

	}

	MeshNormalMaterial.prototype = Object.create( Material.prototype );
	MeshNormalMaterial.prototype.constructor = MeshNormalMaterial;

	MeshNormalMaterial.prototype.isMeshNormalMaterial = true;

	MeshNormalMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.bumpMap = source.bumpMap;
		this.bumpScale = source.bumpScale;

		this.normalMap = source.normalMap;
		this.normalScale.copy( source.normalScale );

		this.displacementMap = source.displacementMap;
		this.displacementScale = source.displacementScale;
		this.displacementBias = source.displacementBias;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		return this;

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *
	 *  map: new THREE.Texture( <Image> ),
	 *
	 *  lightMap: new THREE.Texture( <Image> ),
	 *  lightMapIntensity: <float>
	 *
	 *  aoMap: new THREE.Texture( <Image> ),
	 *  aoMapIntensity: <float>
	 *
	 *  emissive: <hex>,
	 *  emissiveIntensity: <float>
	 *  emissiveMap: new THREE.Texture( <Image> ),
	 *
	 *  specularMap: new THREE.Texture( <Image> ),
	 *
	 *  alphaMap: new THREE.Texture( <Image> ),
	 *
	 *  envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),
	 *  combine: THREE.Multiply,
	 *  reflectivity: <float>,
	 *  refractionRatio: <float>,
	 *
	 *  wireframe: <boolean>,
	 *  wireframeLinewidth: <float>,
	 *
	 *  skinning: <bool>,
	 *  morphTargets: <bool>,
	 *  morphNormals: <bool>
	 * }
	 */

	function MeshLambertMaterial( parameters ) {

		Material.call( this );

		this.type = 'MeshLambertMaterial';

		this.color = new Color( 0xffffff ); // diffuse

		this.map = null;

		this.lightMap = null;
		this.lightMapIntensity = 1.0;

		this.aoMap = null;
		this.aoMapIntensity = 1.0;

		this.emissive = new Color( 0x000000 );
		this.emissiveIntensity = 1.0;
		this.emissiveMap = null;

		this.specularMap = null;

		this.alphaMap = null;

		this.envMap = null;
		this.combine = MultiplyOperation;
		this.reflectivity = 1;
		this.refractionRatio = 0.98;

		this.wireframe = false;
		this.wireframeLinewidth = 1;
		this.wireframeLinecap = 'round';
		this.wireframeLinejoin = 'round';

		this.skinning = false;
		this.morphTargets = false;
		this.morphNormals = false;

		this.setValues( parameters );

	}

	MeshLambertMaterial.prototype = Object.create( Material.prototype );
	MeshLambertMaterial.prototype.constructor = MeshLambertMaterial;

	MeshLambertMaterial.prototype.isMeshLambertMaterial = true;

	MeshLambertMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		this.map = source.map;

		this.lightMap = source.lightMap;
		this.lightMapIntensity = source.lightMapIntensity;

		this.aoMap = source.aoMap;
		this.aoMapIntensity = source.aoMapIntensity;

		this.emissive.copy( source.emissive );
		this.emissiveMap = source.emissiveMap;
		this.emissiveIntensity = source.emissiveIntensity;

		this.specularMap = source.specularMap;

		this.alphaMap = source.alphaMap;

		this.envMap = source.envMap;
		this.combine = source.combine;
		this.reflectivity = source.reflectivity;
		this.refractionRatio = source.refractionRatio;

		this.wireframe = source.wireframe;
		this.wireframeLinewidth = source.wireframeLinewidth;
		this.wireframeLinecap = source.wireframeLinecap;
		this.wireframeLinejoin = source.wireframeLinejoin;

		this.skinning = source.skinning;
		this.morphTargets = source.morphTargets;
		this.morphNormals = source.morphNormals;

		return this;

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 *
	 * parameters = {
	 *  color: <hex>,
	 *  opacity: <float>,
	 *
	 *  linewidth: <float>,
	 *
	 *  scale: <float>,
	 *  dashSize: <float>,
	 *  gapSize: <float>
	 * }
	 */

	function LineDashedMaterial( parameters ) {

		Material.call( this );

		this.type = 'LineDashedMaterial';

		this.color = new Color( 0xffffff );

		this.linewidth = 1;

		this.scale = 1;
		this.dashSize = 3;
		this.gapSize = 1;

		this.lights = false;

		this.setValues( parameters );

	}

	LineDashedMaterial.prototype = Object.create( Material.prototype );
	LineDashedMaterial.prototype.constructor = LineDashedMaterial;

	LineDashedMaterial.prototype.isLineDashedMaterial = true;

	LineDashedMaterial.prototype.copy = function ( source ) {

		Material.prototype.copy.call( this, source );

		this.color.copy( source.color );

		this.linewidth = source.linewidth;

		this.scale = source.scale;
		this.dashSize = source.dashSize;
		this.gapSize = source.gapSize;

		return this;

	};



	var Materials = Object.freeze({
		ShadowMaterial: ShadowMaterial,
		SpriteMaterial: SpriteMaterial,
		RawShaderMaterial: RawShaderMaterial,
		ShaderMaterial: ShaderMaterial,
		PointsMaterial: PointsMaterial,
		MeshPhysicalMaterial: MeshPhysicalMaterial,
		MeshStandardMaterial: MeshStandardMaterial,
		MeshPhongMaterial: MeshPhongMaterial,
		MeshToonMaterial: MeshToonMaterial,
		MeshNormalMaterial: MeshNormalMaterial,
		MeshLambertMaterial: MeshLambertMaterial,
		MeshDepthMaterial: MeshDepthMaterial,
		MeshBasicMaterial: MeshBasicMaterial,
		LineDashedMaterial: LineDashedMaterial,
		LineBasicMaterial: LineBasicMaterial,
		Material: Material
	});

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	var Cache = {

		enabled: false,

		files: {},

		add: function ( key, file ) {

			if ( this.enabled === false ) return;

			// console.log( 'THREE.Cache', 'Adding key:', key );

			this.files[ key ] = file;

		},

		get: function ( key ) {

			if ( this.enabled === false ) return;

			// console.log( 'THREE.Cache', 'Checking key:', key );

			return this.files[ key ];

		},

		remove: function ( key ) {

			delete this.files[ key ];

		},

		clear: function () {

			this.files = {};

		}

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function LoadingManager( onLoad, onProgress, onError ) {

		var scope = this;

		var isLoading = false, itemsLoaded = 0, itemsTotal = 0;

		this.onStart = undefined;
		this.onLoad = onLoad;
		this.onProgress = onProgress;
		this.onError = onError;

		this.itemStart = function ( url ) {

			itemsTotal ++;

			if ( isLoading === false ) {

				if ( scope.onStart !== undefined ) {

					scope.onStart( url, itemsLoaded, itemsTotal );

				}

			}

			isLoading = true;

		};

		this.itemEnd = function ( url ) {

			itemsLoaded ++;

			if ( scope.onProgress !== undefined ) {

				scope.onProgress( url, itemsLoaded, itemsTotal );

			}

			if ( itemsLoaded === itemsTotal ) {

				isLoading = false;

				if ( scope.onLoad !== undefined ) {

					scope.onLoad();

				}

			}

		};

		this.itemError = function ( url ) {

			if ( scope.onError !== undefined ) {

				scope.onError( url );

			}

		};

	}

	var DefaultLoadingManager = new LoadingManager();

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function FileLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( FileLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			if ( url === undefined ) url = '';

			if ( this.path !== undefined ) url = this.path + url;

			var scope = this;

			var cached = Cache.get( url );

			if ( cached !== undefined ) {

				scope.manager.itemStart( url );

				setTimeout( function () {

					if ( onLoad ) onLoad( cached );

					scope.manager.itemEnd( url );

				}, 0 );

				return cached;

			}

			// Check for data: URI
			var dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;
			var dataUriRegexResult = url.match( dataUriRegex );

			// Safari can not handle Data URIs through XMLHttpRequest so process manually
			if ( dataUriRegexResult ) {

				var mimeType = dataUriRegexResult[ 1 ];
				var isBase64 = !! dataUriRegexResult[ 2 ];
				var data = dataUriRegexResult[ 3 ];

				data = window.decodeURIComponent( data );

				if ( isBase64 ) data = window.atob( data );

				try {

					var response;
					var responseType = ( this.responseType || '' ).toLowerCase();

					switch ( responseType ) {

						case 'arraybuffer':
						case 'blob':

						 	response = new ArrayBuffer( data.length );

							var view = new Uint8Array( response );

							for ( var i = 0; i < data.length; i ++ ) {

								view[ i ] = data.charCodeAt( i );

							}

							if ( responseType === 'blob' ) {

								response = new Blob( [ response ], { type: mimeType } );

							}

							break;

						case 'document':

							var parser = new DOMParser();
							response = parser.parseFromString( data, mimeType );

							break;

						case 'json':

							response = JSON.parse( data );

							break;

						default: // 'text' or other

							response = data;

							break;

					}

					// Wait for next browser tick
					window.setTimeout( function () {

						if ( onLoad ) onLoad( response );

						scope.manager.itemEnd( url );

					}, 0 );

				} catch ( error ) {

					// Wait for next browser tick
					window.setTimeout( function () {

						if ( onError ) onError( error );

						scope.manager.itemEnd( url );
						scope.manager.itemError( url );

					}, 0 );

				}

			} else {

				var request = new XMLHttpRequest();
				request.open( 'GET', url, true );

				request.addEventListener( 'load', function ( event ) {

					var response = event.target.response;

					Cache.add( url, response );

					if ( this.status === 200 ) {

						if ( onLoad ) onLoad( response );

						scope.manager.itemEnd( url );

					} else if ( this.status === 0 ) {

						// Some browsers return HTTP Status 0 when using non-http protocol
						// e.g. 'file://' or 'data://'. Handle as success.

						console.warn( 'THREE.FileLoader: HTTP Status 0 received.' );

						if ( onLoad ) onLoad( response );

						scope.manager.itemEnd( url );

					} else {

						if ( onError ) onError( event );

						scope.manager.itemEnd( url );
						scope.manager.itemError( url );

					}

				}, false );

				if ( onProgress !== undefined ) {

					request.addEventListener( 'progress', function ( event ) {

						onProgress( event );

					}, false );

				}

				request.addEventListener( 'error', function ( event ) {

					if ( onError ) onError( event );

					scope.manager.itemEnd( url );
					scope.manager.itemError( url );

				}, false );

				if ( this.responseType !== undefined ) request.responseType = this.responseType;
				if ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;

				if ( request.overrideMimeType ) request.overrideMimeType( this.mimeType !== undefined ? this.mimeType : 'text/plain' );

				for ( var header in this.requestHeader ) {

					request.setRequestHeader( header, this.requestHeader[ header ] );

				}

				request.send( null );

			}

			scope.manager.itemStart( url );

			return request;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		},

		setResponseType: function ( value ) {

			this.responseType = value;
			return this;

		},

		setWithCredentials: function ( value ) {

			this.withCredentials = value;
			return this;

		},

		setMimeType: function ( value ) {

			this.mimeType = value;
			return this;

		},

		setRequestHeader: function ( value ) {

			this.requestHeader = value;
			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 *
	 * Abstract Base class to block based textures loader (dds, pvr, ...)
	 */

	function CompressedTextureLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

		// override in sub classes
		this._parser = null;

	}

	Object.assign( CompressedTextureLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var images = [];

			var texture = new CompressedTexture();
			texture.image = images;

			var loader = new FileLoader( this.manager );
			loader.setPath( this.path );
			loader.setResponseType( 'arraybuffer' );

			function loadTexture( i ) {

				loader.load( url[ i ], function ( buffer ) {

					var texDatas = scope._parser( buffer, true );

					images[ i ] = {
						width: texDatas.width,
						height: texDatas.height,
						format: texDatas.format,
						mipmaps: texDatas.mipmaps
					};

					loaded += 1;

					if ( loaded === 6 ) {

						if ( texDatas.mipmapCount === 1 )
							texture.minFilter = LinearFilter;

						texture.format = texDatas.format;
						texture.needsUpdate = true;

						if ( onLoad ) onLoad( texture );

					}

				}, onProgress, onError );

			}

			if ( Array.isArray( url ) ) {

				var loaded = 0;

				for ( var i = 0, il = url.length; i < il; ++ i ) {

					loadTexture( i );

				}

			} else {

				// compressed cubemap texture stored in a single DDS file

				loader.load( url, function ( buffer ) {

					var texDatas = scope._parser( buffer, true );

					if ( texDatas.isCubemap ) {

						var faces = texDatas.mipmaps.length / texDatas.mipmapCount;

						for ( var f = 0; f < faces; f ++ ) {

							images[ f ] = { mipmaps : [] };

							for ( var i = 0; i < texDatas.mipmapCount; i ++ ) {

								images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );
								images[ f ].format = texDatas.format;
								images[ f ].width = texDatas.width;
								images[ f ].height = texDatas.height;

							}

						}

					} else {

						texture.image.width = texDatas.width;
						texture.image.height = texDatas.height;
						texture.mipmaps = texDatas.mipmaps;

					}

					if ( texDatas.mipmapCount === 1 ) {

						texture.minFilter = LinearFilter;

					}

					texture.format = texDatas.format;
					texture.needsUpdate = true;

					if ( onLoad ) onLoad( texture );

				}, onProgress, onError );

			}

			return texture;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	} );

	/**
	 * @author Nikos M. / https://github.com/foo123/
	 *
	 * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
	 */

	function DataTextureLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

		// override in sub classes
		this._parser = null;

	}

	Object.assign( DataTextureLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var texture = new DataTexture();

			var loader = new FileLoader( this.manager );
			loader.setResponseType( 'arraybuffer' );

			loader.load( url, function ( buffer ) {

				var texData = scope._parser( buffer );

				if ( ! texData ) return;

				if ( undefined !== texData.image ) {

					texture.image = texData.image;

				} else if ( undefined !== texData.data ) {

					texture.image.width = texData.width;
					texture.image.height = texData.height;
					texture.image.data = texData.data;

				}

				texture.wrapS = undefined !== texData.wrapS ? texData.wrapS : ClampToEdgeWrapping;
				texture.wrapT = undefined !== texData.wrapT ? texData.wrapT : ClampToEdgeWrapping;

				texture.magFilter = undefined !== texData.magFilter ? texData.magFilter : LinearFilter;
				texture.minFilter = undefined !== texData.minFilter ? texData.minFilter : LinearMipMapLinearFilter;

				texture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1;

				if ( undefined !== texData.format ) {

					texture.format = texData.format;

				}
				if ( undefined !== texData.type ) {

					texture.type = texData.type;

				}

				if ( undefined !== texData.mipmaps ) {

					texture.mipmaps = texData.mipmaps;

				}

				if ( 1 === texData.mipmapCount ) {

					texture.minFilter = LinearFilter;

				}

				texture.needsUpdate = true;

				if ( onLoad ) onLoad( texture, texData );

			}, onProgress, onError );


			return texture;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function ImageLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( ImageLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			if ( url === undefined ) url = '';

			if ( this.path !== undefined ) url = this.path + url;

			var scope = this;

			var cached = Cache.get( url );

			if ( cached !== undefined ) {

				scope.manager.itemStart( url );

				setTimeout( function () {

					if ( onLoad ) onLoad( cached );

					scope.manager.itemEnd( url );

				}, 0 );

				return cached;

			}

			var image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' );

			image.addEventListener( 'load', function () {

				Cache.add( url, this );

				if ( onLoad ) onLoad( this );

				scope.manager.itemEnd( url );

			}, false );

			/*
			image.addEventListener( 'progress', function ( event ) {

				if ( onProgress ) onProgress( event );

			}, false );
			*/

			image.addEventListener( 'error', function ( event ) {

				if ( onError ) onError( event );

				scope.manager.itemEnd( url );
				scope.manager.itemError( url );

			}, false );

			if ( url.substr( 0, 5 ) !== 'data:' ) {

				if ( this.crossOrigin !== undefined ) image.crossOrigin = this.crossOrigin;

			}

			scope.manager.itemStart( url );

			image.src = url;

			return image;

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function CubeTextureLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( CubeTextureLoader.prototype, {

		load: function ( urls, onLoad, onProgress, onError ) {

			var texture = new CubeTexture();

			var loader = new ImageLoader( this.manager );
			loader.setCrossOrigin( this.crossOrigin );
			loader.setPath( this.path );

			var loaded = 0;

			function loadTexture( i ) {

				loader.load( urls[ i ], function ( image ) {

					texture.images[ i ] = image;

					loaded ++;

					if ( loaded === 6 ) {

						texture.needsUpdate = true;

						if ( onLoad ) onLoad( texture );

					}

				}, undefined, onError );

			}

			for ( var i = 0; i < urls.length; ++ i ) {

				loadTexture( i );

			}

			return texture;

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function TextureLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( TextureLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var loader = new ImageLoader( this.manager );
			loader.setCrossOrigin( this.crossOrigin );
			loader.setPath( this.path );

			var texture = new Texture();
			texture.image = loader.load( url, function () {

				// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.
				var isJPEG = url.search( /\.(jpg|jpeg)$/ ) > 0 || url.search( /^data\:image\/jpeg/ ) === 0;

				texture.format = isJPEG ? RGBFormat : RGBAFormat;
				texture.needsUpdate = true;

				if ( onLoad !== undefined ) {

					onLoad( texture );

				}

			}, onProgress, onError );

			return texture;

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;
			return this;

		},

		setPath: function ( value ) {

			this.path = value;
			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Light( color, intensity ) {

		Object3D.call( this );

		this.type = 'Light';

		this.color = new Color( color );
		this.intensity = intensity !== undefined ? intensity : 1;

		this.receiveShadow = undefined;

	}

	Light.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Light,

		isLight: true,

		copy: function ( source ) {

			Object3D.prototype.copy.call( this, source );

			this.color.copy( source.color );
			this.intensity = source.intensity;

			return this;

		},

		toJSON: function ( meta ) {

			var data = Object3D.prototype.toJSON.call( this, meta );

			data.object.color = this.color.getHex();
			data.object.intensity = this.intensity;

			if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();

			if ( this.distance !== undefined ) data.object.distance = this.distance;
			if ( this.angle !== undefined ) data.object.angle = this.angle;
			if ( this.decay !== undefined ) data.object.decay = this.decay;
			if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;

			if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();

			return data;

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function HemisphereLight( skyColor, groundColor, intensity ) {

		Light.call( this, skyColor, intensity );

		this.type = 'HemisphereLight';

		this.castShadow = undefined;

		this.position.copy( Object3D.DefaultUp );
		this.updateMatrix();

		this.groundColor = new Color( groundColor );

	}

	HemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: HemisphereLight,

		isHemisphereLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.groundColor.copy( source.groundColor );

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function LightShadow( camera ) {

		this.camera = camera;

		this.bias = 0;
		this.radius = 1;

		this.mapSize = new Vector2( 512, 512 );

		this.map = null;
		this.matrix = new Matrix4();

	}

	Object.assign( LightShadow.prototype, {

		copy: function ( source ) {

			this.camera = source.camera.clone();

			this.bias = source.bias;
			this.radius = source.radius;

			this.mapSize.copy( source.mapSize );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		toJSON: function () {

			var object = {};

			if ( this.bias !== 0 ) object.bias = this.bias;
			if ( this.radius !== 1 ) object.radius = this.radius;
			if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();

			object.camera = this.camera.toJSON( false ).object;
			delete object.camera.matrix;

			return object;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function SpotLightShadow() {

		LightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );

	}

	SpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {

		constructor: SpotLightShadow,

		isSpotLightShadow: true,

		update: function ( light ) {

			var camera = this.camera;

			var fov = _Math.RAD2DEG * 2 * light.angle;
			var aspect = this.mapSize.width / this.mapSize.height;
			var far = light.distance || camera.far;

			if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {

				camera.fov = fov;
				camera.aspect = aspect;
				camera.far = far;
				camera.updateProjectionMatrix();

			}

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function SpotLight( color, intensity, distance, angle, penumbra, decay ) {

		Light.call( this, color, intensity );

		this.type = 'SpotLight';

		this.position.copy( Object3D.DefaultUp );
		this.updateMatrix();

		this.target = new Object3D();

		Object.defineProperty( this, 'power', {
			get: function () {
				// intensity = power per solid angle.
				// ref: equation (17) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf
				return this.intensity * Math.PI;
			},
			set: function ( power ) {
				// intensity = power per solid angle.
				// ref: equation (17) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf
				this.intensity = power / Math.PI;
			}
		} );

		this.distance = ( distance !== undefined ) ? distance : 0;
		this.angle = ( angle !== undefined ) ? angle : Math.PI / 3;
		this.penumbra = ( penumbra !== undefined ) ? penumbra : 0;
		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.

		this.shadow = new SpotLightShadow();

	}

	SpotLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: SpotLight,

		isSpotLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.distance = source.distance;
			this.angle = source.angle;
			this.penumbra = source.penumbra;
			this.decay = source.decay;

			this.target = source.target.clone();

			this.shadow = source.shadow.clone();

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */


	function PointLight( color, intensity, distance, decay ) {

		Light.call( this, color, intensity );

		this.type = 'PointLight';

		Object.defineProperty( this, 'power', {
			get: function () {
				// intensity = power per solid angle.
				// ref: equation (15) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf
				return this.intensity * 4 * Math.PI;

			},
			set: function ( power ) {
				// intensity = power per solid angle.
				// ref: equation (15) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf
				this.intensity = power / ( 4 * Math.PI );
			}
		} );

		this.distance = ( distance !== undefined ) ? distance : 0;
		this.decay = ( decay !== undefined ) ? decay : 1;	// for physically correct lights, should be 2.

		this.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) );

	}

	PointLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: PointLight,

		isPointLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.distance = source.distance;
			this.decay = source.decay;

			this.shadow = source.shadow.clone();

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function DirectionalLightShadow( ) {

		LightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );

	}

	DirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {

		constructor: DirectionalLightShadow

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function DirectionalLight( color, intensity ) {

		Light.call( this, color, intensity );

		this.type = 'DirectionalLight';

		this.position.copy( Object3D.DefaultUp );
		this.updateMatrix();

		this.target = new Object3D();

		this.shadow = new DirectionalLightShadow();

	}

	DirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: DirectionalLight,

		isDirectionalLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.target = source.target.clone();

			this.shadow = source.shadow.clone();

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function AmbientLight( color, intensity ) {

		Light.call( this, color, intensity );

		this.type = 'AmbientLight';

		this.castShadow = undefined;

	}

	AmbientLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: AmbientLight,

		isAmbientLight: true

	} );

	/**
	 * @author abelnation / http://github.com/abelnation
	 */

	function RectAreaLight( color, intensity, width, height ) {

		Light.call( this, color, intensity );

		this.type = 'RectAreaLight';

		this.position.set( 0, 1, 0 );
		this.updateMatrix();

		this.width = ( width !== undefined ) ? width : 10;
		this.height = ( height !== undefined ) ? height : 10;

		// TODO (abelnation): distance/decay

		// TODO (abelnation): update method for RectAreaLight to update transform to lookat target

		// TODO (abelnation): shadows

	}

	// TODO (abelnation): RectAreaLight update when light shape is changed
	RectAreaLight.prototype = Object.assign( Object.create( Light.prototype ), {

		constructor: RectAreaLight,

		isRectAreaLight: true,

		copy: function ( source ) {

			Light.prototype.copy.call( this, source );

			this.width = source.width;
			this.height = source.height;

			return this;

		},

		toJSON: function ( meta ) {

			var data = Light.prototype.toJSON.call( this, meta );

			data.object.width = this.width;
			data.object.height = this.height;

			return data;

		}

	} );

	/**
	 * @author tschw
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 */

	var AnimationUtils = {

		// same as Array.prototype.slice, but also works on typed arrays
		arraySlice: function ( array, from, to ) {

			if ( AnimationUtils.isTypedArray( array ) ) {

				// in ios9 array.subarray(from, undefined) will return empty array
				// but array.subarray(from) or array.subarray(from, len) is correct
				return new array.constructor( array.subarray( from, to !== undefined ? to : array.length ) );

			}

			return array.slice( from, to );

		},

		// converts an array to a specific type
		convertArray: function ( array, type, forceClone ) {

			if ( ! array || // let 'undefined' and 'null' pass
					! forceClone && array.constructor === type ) return array;

			if ( typeof type.BYTES_PER_ELEMENT === 'number' ) {

				return new type( array ); // create typed array

			}

			return Array.prototype.slice.call( array ); // create Array

		},

		isTypedArray: function ( object ) {

			return ArrayBuffer.isView( object ) &&
					! ( object instanceof DataView );

		},

		// returns an array by which times and values can be sorted
		getKeyframeOrder: function ( times ) {

			function compareTime( i, j ) {

				return times[ i ] - times[ j ];

			}

			var n = times.length;
			var result = new Array( n );
			for ( var i = 0; i !== n; ++ i ) result[ i ] = i;

			result.sort( compareTime );

			return result;

		},

		// uses the array previously returned by 'getKeyframeOrder' to sort data
		sortedArray: function ( values, stride, order ) {

			var nValues = values.length;
			var result = new values.constructor( nValues );

			for ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {

				var srcOffset = order[ i ] * stride;

				for ( var j = 0; j !== stride; ++ j ) {

					result[ dstOffset ++ ] = values[ srcOffset + j ];

				}

			}

			return result;

		},

		// function for parsing AOS keyframe formats
		flattenJSON: function ( jsonKeys, times, values, valuePropertyName ) {

			var i = 1, key = jsonKeys[ 0 ];

			while ( key !== undefined && key[ valuePropertyName ] === undefined ) {

				key = jsonKeys[ i ++ ];

			}

			if ( key === undefined ) return; // no data

			var value = key[ valuePropertyName ];
			if ( value === undefined ) return; // no data

			if ( Array.isArray( value ) ) {

				do {

					value = key[ valuePropertyName ];

					if ( value !== undefined ) {

						times.push( key.time );
						values.push.apply( values, value ); // push all elements

					}

					key = jsonKeys[ i ++ ];

				} while ( key !== undefined );

			} else if ( value.toArray !== undefined ) {

				// ...assume THREE.Math-ish

				do {

					value = key[ valuePropertyName ];

					if ( value !== undefined ) {

						times.push( key.time );
						value.toArray( values, values.length );

					}

					key = jsonKeys[ i ++ ];

				} while ( key !== undefined );

			} else {

				// otherwise push as-is

				do {

					value = key[ valuePropertyName ];

					if ( value !== undefined ) {

						times.push( key.time );
						values.push( value );

					}

					key = jsonKeys[ i ++ ];

				} while ( key !== undefined );

			}

		}

	};

	/**
	 * Abstract base class of interpolants over parametric samples.
	 *
	 * The parameter domain is one dimensional, typically the time or a path
	 * along a curve defined by the data.
	 *
	 * The sample values can have any dimensionality and derived classes may
	 * apply special interpretations to the data.
	 *
	 * This class provides the interval seek in a Template Method, deferring
	 * the actual interpolation to derived classes.
	 *
	 * Time complexity is O(1) for linear access crossing at most two points
	 * and O(log N) for random access, where N is the number of positions.
	 *
	 * References:
	 *
	 * 		http://www.oodesign.com/template-method-pattern.html
	 *
	 * @author tschw
	 */

	function Interpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		this.parameterPositions = parameterPositions;
		this._cachedIndex = 0;

		this.resultBuffer = resultBuffer !== undefined ?
				resultBuffer : new sampleValues.constructor( sampleSize );
		this.sampleValues = sampleValues;
		this.valueSize = sampleSize;

	}

	Object.assign( Interpolant.prototype, {

		evaluate: function( t ) {

			var pp = this.parameterPositions,
				i1 = this._cachedIndex,

				t1 = pp[   i1   ],
				t0 = pp[ i1 - 1 ];

			validate_interval: {

				seek: {

					var right;

					linear_scan: {
						//- See http://jsperf.com/comparison-to-undefined/3
						//- slower code:
						//-
						//- 				if ( t >= t1 || t1 === undefined ) {
						forward_scan: if ( ! ( t < t1 ) ) {

							for ( var giveUpAt = i1 + 2; ;) {

								if ( t1 === undefined ) {

									if ( t < t0 ) break forward_scan;

									// after end

									i1 = pp.length;
									this._cachedIndex = i1;
									return this.afterEnd_( i1 - 1, t, t0 );

								}

								if ( i1 === giveUpAt ) break; // this loop

								t0 = t1;
								t1 = pp[ ++ i1 ];

								if ( t < t1 ) {

									// we have arrived at the sought interval
									break seek;

								}

							}

							// prepare binary search on the right side of the index
							right = pp.length;
							break linear_scan;

						}

						//- slower code:
						//-					if ( t < t0 || t0 === undefined ) {
						if ( ! ( t >= t0 ) ) {

							// looping?

							var t1global = pp[ 1 ];

							if ( t < t1global ) {

								i1 = 2; // + 1, using the scan for the details
								t0 = t1global;

							}

							// linear reverse scan

							for ( var giveUpAt = i1 - 2; ;) {

								if ( t0 === undefined ) {

									// before start

									this._cachedIndex = 0;
									return this.beforeStart_( 0, t, t1 );

								}

								if ( i1 === giveUpAt ) break; // this loop

								t1 = t0;
								t0 = pp[ -- i1 - 1 ];

								if ( t >= t0 ) {

									// we have arrived at the sought interval
									break seek;

								}

							}

							// prepare binary search on the left side of the index
							right = i1;
							i1 = 0;
							break linear_scan;

						}

						// the interval is valid

						break validate_interval;

					} // linear scan

					// binary search

					while ( i1 < right ) {

						var mid = ( i1 + right ) >>> 1;

						if ( t < pp[ mid ] ) {

							right = mid;

						} else {

							i1 = mid + 1;

						}

					}

					t1 = pp[   i1   ];
					t0 = pp[ i1 - 1 ];

					// check boundary cases, again

					if ( t0 === undefined ) {

						this._cachedIndex = 0;
						return this.beforeStart_( 0, t, t1 );

					}

					if ( t1 === undefined ) {

						i1 = pp.length;
						this._cachedIndex = i1;
						return this.afterEnd_( i1 - 1, t0, t );

					}

				} // seek

				this._cachedIndex = i1;

				this.intervalChanged_( i1, t0, t1 );

			} // validate_interval

			return this.interpolate_( i1, t0, t, t1 );

		},

		settings: null, // optional, subclass-specific settings structure
		// Note: The indirection allows central control of many interpolants.

		// --- Protected interface

		DefaultSettings_: {},

		getSettings_: function() {

			return this.settings || this.DefaultSettings_;

		},

		copySampleValue_: function( index ) {

			// copies a sample value to the result buffer

			var result = this.resultBuffer,
				values = this.sampleValues,
				stride = this.valueSize,
				offset = index * stride;

			for ( var i = 0; i !== stride; ++ i ) {

				result[ i ] = values[ offset + i ];

			}

			return result;

		},

		// Template methods for derived classes:

		interpolate_: function( i1, t0, t, t1 ) {

			throw new Error( "call to abstract method" );
			// implementations shall return this.resultBuffer

		},

		intervalChanged_: function( i1, t0, t1 ) {

			// empty

		}

	} );

	//!\ DECLARE ALIAS AFTER assign prototype !
	Object.assign( Interpolant.prototype, {

		//( 0, t, t0 ), returns this.resultBuffer
		beforeStart_: Interpolant.prototype.copySampleValue_,

		//( N-1, tN-1, t ), returns this.resultBuffer
		afterEnd_: Interpolant.prototype.copySampleValue_,

	} );

	/**
	 * Fast and simple cubic spline interpolant.
	 *
	 * It was derived from a Hermitian construction setting the first derivative
	 * at each sample position to the linear slope between neighboring positions
	 * over their parameter interval.
	 *
	 * @author tschw
	 */

	function CubicInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		Interpolant.call(
				this, parameterPositions, sampleValues, sampleSize, resultBuffer );

		this._weightPrev = -0;
		this._offsetPrev = -0;
		this._weightNext = -0;
		this._offsetNext = -0;

	}

	CubicInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {

		constructor: CubicInterpolant,

		DefaultSettings_: {

			endingStart: 	ZeroCurvatureEnding,
			endingEnd:		ZeroCurvatureEnding

		},

		intervalChanged_: function( i1, t0, t1 ) {

			var pp = this.parameterPositions,
				iPrev = i1 - 2,
				iNext = i1 + 1,

				tPrev = pp[ iPrev ],
				tNext = pp[ iNext ];

			if ( tPrev === undefined ) {

				switch ( this.getSettings_().endingStart ) {

					case ZeroSlopeEnding:

						// f'(t0) = 0
						iPrev = i1;
						tPrev = 2 * t0 - t1;

						break;

					case WrapAroundEnding:

						// use the other end of the curve
						iPrev = pp.length - 2;
						tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];

						break;

					default: // ZeroCurvatureEnding

						// f''(t0) = 0 a.k.a. Natural Spline
						iPrev = i1;
						tPrev = t1;

				}

			}

			if ( tNext === undefined ) {

				switch ( this.getSettings_().endingEnd ) {

					case ZeroSlopeEnding:

						// f'(tN) = 0
						iNext = i1;
						tNext = 2 * t1 - t0;

						break;

					case WrapAroundEnding:

						// use the other end of the curve
						iNext = 1;
						tNext = t1 + pp[ 1 ] - pp[ 0 ];

						break;

					default: // ZeroCurvatureEnding

						// f''(tN) = 0, a.k.a. Natural Spline
						iNext = i1 - 1;
						tNext = t0;

				}

			}

			var halfDt = ( t1 - t0 ) * 0.5,
				stride = this.valueSize;

			this._weightPrev = halfDt / ( t0 - tPrev );
			this._weightNext = halfDt / ( tNext - t1 );
			this._offsetPrev = iPrev * stride;
			this._offsetNext = iNext * stride;

		},

		interpolate_: function( i1, t0, t, t1 ) {

			var result = this.resultBuffer,
				values = this.sampleValues,
				stride = this.valueSize,

				o1 = i1 * stride,		o0 = o1 - stride,
				oP = this._offsetPrev, 	oN = this._offsetNext,
				wP = this._weightPrev,	wN = this._weightNext,

				p = ( t - t0 ) / ( t1 - t0 ),
				pp = p * p,
				ppp = pp * p;

			// evaluate polynomials

			var sP =     - wP   * ppp   +         2 * wP    * pp    -          wP   * p;
			var s0 = ( 1 + wP ) * ppp   + (-1.5 - 2 * wP )  * pp    + ( -0.5 + wP ) * p     + 1;
			var s1 = (-1 - wN ) * ppp   + ( 1.5 +   wN   )  * pp    +    0.5        * p;
			var sN =       wN   * ppp   -           wN      * pp;

			// combine data linearly

			for ( var i = 0; i !== stride; ++ i ) {

				result[ i ] =
						sP * values[ oP + i ] +
						s0 * values[ o0 + i ] +
						s1 * values[ o1 + i ] +
						sN * values[ oN + i ];

			}

			return result;

		}

	} );

	/**
	 * @author tschw
	 */

	function LinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	LinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {

		constructor: LinearInterpolant,

		interpolate_: function( i1, t0, t, t1 ) {

			var result = this.resultBuffer,
				values = this.sampleValues,
				stride = this.valueSize,

				offset1 = i1 * stride,
				offset0 = offset1 - stride,

				weight1 = ( t - t0 ) / ( t1 - t0 ),
				weight0 = 1 - weight1;

			for ( var i = 0; i !== stride; ++ i ) {

				result[ i ] =
						values[ offset0 + i ] * weight0 +
						values[ offset1 + i ] * weight1;

			}

			return result;

		}

	} );

	/**
	 *
	 * Interpolant that evaluates to the sample value at the position preceeding
	 * the parameter.
	 *
	 * @author tschw
	 */

	function DiscreteInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	DiscreteInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {

		constructor: DiscreteInterpolant,

		interpolate_: function( i1, t0, t, t1 ) {

			return this.copySampleValue_( i1 - 1 );

		}

	} );

	var KeyframeTrackPrototype;

	KeyframeTrackPrototype = {

		TimeBufferType: Float32Array,
		ValueBufferType: Float32Array,

		DefaultInterpolation: InterpolateLinear,

		InterpolantFactoryMethodDiscrete: function ( result ) {

			return new DiscreteInterpolant(
					this.times, this.values, this.getValueSize(), result );

		},

		InterpolantFactoryMethodLinear: function ( result ) {

			return new LinearInterpolant(
					this.times, this.values, this.getValueSize(), result );

		},

		InterpolantFactoryMethodSmooth: function ( result ) {

			return new CubicInterpolant(
					this.times, this.values, this.getValueSize(), result );

		},

		setInterpolation: function ( interpolation ) {

			var factoryMethod;

			switch ( interpolation ) {

				case InterpolateDiscrete:

					factoryMethod = this.InterpolantFactoryMethodDiscrete;

					break;

				case InterpolateLinear:

					factoryMethod = this.InterpolantFactoryMethodLinear;

					break;

				case InterpolateSmooth:

					factoryMethod = this.InterpolantFactoryMethodSmooth;

					break;

			}

			if ( factoryMethod === undefined ) {

				var message = "unsupported interpolation for " +
						this.ValueTypeName + " keyframe track named " + this.name;

				if ( this.createInterpolant === undefined ) {

					// fall back to default, unless the default itself is messed up
					if ( interpolation !== this.DefaultInterpolation ) {

						this.setInterpolation( this.DefaultInterpolation );

					} else {

						throw new Error( message ); // fatal, in this case

					}

				}

				console.warn( 'THREE.KeyframeTrackPrototype:', message );
				return;

			}

			this.createInterpolant = factoryMethod;

		},

		getInterpolation: function () {

			switch ( this.createInterpolant ) {

				case this.InterpolantFactoryMethodDiscrete:

					return InterpolateDiscrete;

				case this.InterpolantFactoryMethodLinear:

					return InterpolateLinear;

				case this.InterpolantFactoryMethodSmooth:

					return InterpolateSmooth;

			}

		},

		getValueSize: function () {

			return this.values.length / this.times.length;

		},

		// move all keyframes either forwards or backwards in time
		shift: function ( timeOffset ) {

			if ( timeOffset !== 0.0 ) {

				var times = this.times;

				for ( var i = 0, n = times.length; i !== n; ++ i ) {

					times[ i ] += timeOffset;

				}

			}

			return this;

		},

		// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
		scale: function ( timeScale ) {

			if ( timeScale !== 1.0 ) {

				var times = this.times;

				for ( var i = 0, n = times.length; i !== n; ++ i ) {

					times[ i ] *= timeScale;

				}

			}

			return this;

		},

		// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
		// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
		trim: function ( startTime, endTime ) {

			var times = this.times,
				nKeys = times.length,
				from = 0,
				to = nKeys - 1;

			while ( from !== nKeys && times[ from ] < startTime ) ++ from;
			while ( to !== - 1 && times[ to ] > endTime ) -- to;

			++ to; // inclusive -> exclusive bound

			if ( from !== 0 || to !== nKeys ) {

				// empty tracks are forbidden, so keep at least one keyframe
				if ( from >= to ) to = Math.max( to, 1 ), from = to - 1;

				var stride = this.getValueSize();
				this.times = AnimationUtils.arraySlice( times, from, to );
				this.values = AnimationUtils.
						arraySlice( this.values, from * stride, to * stride );

			}

			return this;

		},

		// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
		validate: function () {

			var valid = true;

			var valueSize = this.getValueSize();
			if ( valueSize - Math.floor( valueSize ) !== 0 ) {

				console.error( 'THREE.KeyframeTrackPrototype: Invalid value size in track.', this );
				valid = false;

			}

			var times = this.times,
				values = this.values,

				nKeys = times.length;

			if ( nKeys === 0 ) {

				console.error( 'THREE.KeyframeTrackPrototype: Track is empty.', this );
				valid = false;

			}

			var prevTime = null;

			for ( var i = 0; i !== nKeys; i ++ ) {

				var currTime = times[ i ];

				if ( typeof currTime === 'number' && isNaN( currTime ) ) {

					console.error( 'THREE.KeyframeTrackPrototype: Time is not a valid number.', this, i, currTime );
					valid = false;
					break;

				}

				if ( prevTime !== null && prevTime > currTime ) {

					console.error( 'THREE.KeyframeTrackPrototype: Out of order keys.', this, i, currTime, prevTime );
					valid = false;
					break;

				}

				prevTime = currTime;

			}

			if ( values !== undefined ) {

				if ( AnimationUtils.isTypedArray( values ) ) {

					for ( var i = 0, n = values.length; i !== n; ++ i ) {

						var value = values[ i ];

						if ( isNaN( value ) ) {

							console.error( 'THREE.KeyframeTrackPrototype: Value is not a valid number.', this, i, value );
							valid = false;
							break;

						}

					}

				}

			}

			return valid;

		},

		// removes equivalent sequential keys as common in morph target sequences
		// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
		optimize: function () {

			var times = this.times,
				values = this.values,
				stride = this.getValueSize(),

				smoothInterpolation = this.getInterpolation() === InterpolateSmooth,

				writeIndex = 1,
				lastIndex = times.length - 1;

			for ( var i = 1; i < lastIndex; ++ i ) {

				var keep = false;

				var time = times[ i ];
				var timeNext = times[ i + 1 ];

				// remove adjacent keyframes scheduled at the same time

				if ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {

					if ( ! smoothInterpolation ) {

						// remove unnecessary keyframes same as their neighbors

						var offset = i * stride,
							offsetP = offset - stride,
							offsetN = offset + stride;

						for ( var j = 0; j !== stride; ++ j ) {

							var value = values[ offset + j ];

							if ( value !== values[ offsetP + j ] ||
									value !== values[ offsetN + j ] ) {

								keep = true;
								break;

							}

						}

					} else keep = true;

				}

				// in-place compaction

				if ( keep ) {

					if ( i !== writeIndex ) {

						times[ writeIndex ] = times[ i ];

						var readOffset = i * stride,
							writeOffset = writeIndex * stride;

						for ( var j = 0; j !== stride; ++ j )

							values[ writeOffset + j ] = values[ readOffset + j ];

					}

					++ writeIndex;

				}

			}

			// flush last keyframe (compaction looks ahead)

			if ( lastIndex > 0 ) {

				times[ writeIndex ] = times[ lastIndex ];

				for ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j )

					values[ writeOffset + j ] = values[ readOffset + j ];

				++ writeIndex;

			}

			if ( writeIndex !== times.length ) {

				this.times = AnimationUtils.arraySlice( times, 0, writeIndex );
				this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );

			}

			return this;

		}

	};

	function KeyframeTrackConstructor( name, times, values, interpolation ) {

		if ( name === undefined ) throw new Error( "track name is undefined" );

		if ( times === undefined || times.length === 0 ) {

			throw new Error( "no keyframes in track named " + name );

		}

		this.name = name;

		this.times = AnimationUtils.convertArray( times, this.TimeBufferType );
		this.values = AnimationUtils.convertArray( values, this.ValueBufferType );

		this.setInterpolation( interpolation || this.DefaultInterpolation );

		this.validate();
		this.optimize();

	}

	/**
	 *
	 * A Track of vectored keyframe values.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function VectorKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrackConstructor.call( this, name, times, values, interpolation );

	}

	VectorKeyframeTrack.prototype =
			Object.assign( Object.create( KeyframeTrackPrototype ), {

		constructor: VectorKeyframeTrack,

		ValueTypeName: 'vector'

		// ValueBufferType is inherited

		// DefaultInterpolation is inherited

	} );

	/**
	 * Spherical linear unit quaternion interpolant.
	 *
	 * @author tschw
	 */

	function QuaternionLinearInterpolant( parameterPositions, sampleValues, sampleSize, resultBuffer ) {

		Interpolant.call( this, parameterPositions, sampleValues, sampleSize, resultBuffer );

	}

	QuaternionLinearInterpolant.prototype = Object.assign( Object.create( Interpolant.prototype ), {

		constructor: QuaternionLinearInterpolant,

		interpolate_: function( i1, t0, t, t1 ) {

			var result = this.resultBuffer,
				values = this.sampleValues,
				stride = this.valueSize,

				offset = i1 * stride,

				alpha = ( t - t0 ) / ( t1 - t0 );

			for ( var end = offset + stride; offset !== end; offset += 4 ) {

				Quaternion.slerpFlat( result, 0,
						values, offset - stride, values, offset, alpha );

			}

			return result;

		}

	} );

	/**
	 *
	 * A Track of quaternion keyframe values.
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function QuaternionKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrackConstructor.call( this, name, times, values, interpolation );

	}

	QuaternionKeyframeTrack.prototype =
			Object.assign( Object.create( KeyframeTrackPrototype ), {

		constructor: QuaternionKeyframeTrack,

		ValueTypeName: 'quaternion',

		// ValueBufferType is inherited

		DefaultInterpolation: InterpolateLinear,

		InterpolantFactoryMethodLinear: function( result ) {

			return new QuaternionLinearInterpolant(
					this.times, this.values, this.getValueSize(), result );

		},

		InterpolantFactoryMethodSmooth: undefined // not yet implemented

	} );

	/**
	 *
	 * A Track of numeric keyframe values.
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function NumberKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrackConstructor.call( this, name, times, values, interpolation );

	}

	NumberKeyframeTrack.prototype =
			Object.assign( Object.create( KeyframeTrackPrototype ), {

		constructor: NumberKeyframeTrack,

		ValueTypeName: 'number'

		// ValueBufferType is inherited

		// DefaultInterpolation is inherited

	} );

	/**
	 *
	 * A Track that interpolates Strings
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function StringKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrackConstructor.call( this, name, times, values, interpolation );

	}

	StringKeyframeTrack.prototype =
			Object.assign( Object.create( KeyframeTrackPrototype ), {

		constructor: StringKeyframeTrack,

		ValueTypeName: 'string',
		ValueBufferType: Array,

		DefaultInterpolation: InterpolateDiscrete,

		InterpolantFactoryMethodLinear: undefined,

		InterpolantFactoryMethodSmooth: undefined

	} );

	/**
	 *
	 * A Track of Boolean keyframe values.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function BooleanKeyframeTrack( name, times, values ) {

		KeyframeTrackConstructor.call( this, name, times, values );

	}

	BooleanKeyframeTrack.prototype =
			Object.assign( Object.create( KeyframeTrackPrototype ), {

		constructor: BooleanKeyframeTrack,

		ValueTypeName: 'bool',
		ValueBufferType: Array,

		DefaultInterpolation: InterpolateDiscrete,

		InterpolantFactoryMethodLinear: undefined,
		InterpolantFactoryMethodSmooth: undefined

		// Note: Actually this track could have a optimized / compressed
		// representation of a single value and a custom interpolant that
		// computes "firstValue ^ isOdd( index )".

	} );

	/**
	 *
	 * A Track of keyframe values that represent color.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function ColorKeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrackConstructor.call( this, name, times, values, interpolation );

	}

	ColorKeyframeTrack.prototype =
			Object.assign( Object.create( KeyframeTrackPrototype ), {

		constructor: ColorKeyframeTrack,

		ValueTypeName: 'color'

		// ValueBufferType is inherited

		// DefaultInterpolation is inherited


		// Note: Very basic implementation and nothing special yet.
		// However, this is the place for color space parameterization.

	} );

	/**
	 *
	 * A timed sequence of keyframes for a specific property.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function KeyframeTrack( name, times, values, interpolation ) {

		KeyframeTrackConstructor.apply( this, arguments );

	}

	KeyframeTrack.prototype = KeyframeTrackPrototype;
	KeyframeTrackPrototype.constructor = KeyframeTrack;

	// Static methods:

	Object.assign( KeyframeTrack, {

		// Serialization (in static context, because of constructor invocation
		// and automatic invocation of .toJSON):

		parse: function( json ) {

			if( json.type === undefined ) {

				throw new Error( "track type undefined, can not parse" );

			}

			var trackType = KeyframeTrack._getTrackTypeForValueTypeName( json.type );

			if ( json.times === undefined ) {

				var times = [], values = [];

				AnimationUtils.flattenJSON( json.keys, times, values, 'value' );

				json.times = times;
				json.values = values;

			}

			// derived classes can define a static parse method
			if ( trackType.parse !== undefined ) {

				return trackType.parse( json );

			} else {

				// by default, we asssume a constructor compatible with the base
				return new trackType(
						json.name, json.times, json.values, json.interpolation );

			}

		},

		toJSON: function( track ) {

			var trackType = track.constructor;

			var json;

			// derived classes can define a static toJSON method
			if ( trackType.toJSON !== undefined ) {

				json = trackType.toJSON( track );

			} else {

				// by default, we assume the data can be serialized as-is
				json = {

					'name': track.name,
					'times': AnimationUtils.convertArray( track.times, Array ),
					'values': AnimationUtils.convertArray( track.values, Array )

				};

				var interpolation = track.getInterpolation();

				if ( interpolation !== track.DefaultInterpolation ) {

					json.interpolation = interpolation;

				}

			}

			json.type = track.ValueTypeName; // mandatory

			return json;

		},

		_getTrackTypeForValueTypeName: function( typeName ) {

			switch( typeName.toLowerCase() ) {

				case "scalar":
				case "double":
				case "float":
				case "number":
				case "integer":

					return NumberKeyframeTrack;

				case "vector":
				case "vector2":
				case "vector3":
				case "vector4":

					return VectorKeyframeTrack;

				case "color":

					return ColorKeyframeTrack;

				case "quaternion":

					return QuaternionKeyframeTrack;

				case "bool":
				case "boolean":

					return BooleanKeyframeTrack;

				case "string":

					return StringKeyframeTrack;

			}

			throw new Error( "Unsupported typeName: " + typeName );

		}

	} );

	/**
	 *
	 * Reusable set of Tracks that represent an animation.
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 */

	function AnimationClip( name, duration, tracks ) {

		this.name = name;
		this.tracks = tracks;
		this.duration = ( duration !== undefined ) ? duration : - 1;

		this.uuid = _Math.generateUUID();

		// this means it should figure out its duration by scanning the tracks
		if ( this.duration < 0 ) {

			this.resetDuration();

		}

		this.optimize();

	}

	Object.assign( AnimationClip, {

		parse: function ( json ) {

			var tracks = [],
				jsonTracks = json.tracks,
				frameTime = 1.0 / ( json.fps || 1.0 );

			for ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {

				tracks.push( KeyframeTrack.parse( jsonTracks[ i ] ).scale( frameTime ) );

			}

			return new AnimationClip( json.name, json.duration, tracks );

		},

		toJSON: function ( clip ) {

			var tracks = [],
				clipTracks = clip.tracks;

			var json = {

				'name': clip.name,
				'duration': clip.duration,
				'tracks': tracks

			};

			for ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {

				tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );

			}

			return json;

		},

		CreateFromMorphTargetSequence: function ( name, morphTargetSequence, fps, noLoop ) {

			var numMorphTargets = morphTargetSequence.length;
			var tracks = [];

			for ( var i = 0; i < numMorphTargets; i ++ ) {

				var times = [];
				var values = [];

				times.push(
						( i + numMorphTargets - 1 ) % numMorphTargets,
						i,
						( i + 1 ) % numMorphTargets );

				values.push( 0, 1, 0 );

				var order = AnimationUtils.getKeyframeOrder( times );
				times = AnimationUtils.sortedArray( times, 1, order );
				values = AnimationUtils.sortedArray( values, 1, order );

				// if there is a key at the first frame, duplicate it as the
				// last frame as well for perfect loop.
				if ( ! noLoop && times[ 0 ] === 0 ) {

					times.push( numMorphTargets );
					values.push( values[ 0 ] );

				}

				tracks.push(
						new NumberKeyframeTrack(
							'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',
							times, values
						).scale( 1.0 / fps ) );

			}

			return new AnimationClip( name, - 1, tracks );

		},

		findByName: function ( objectOrClipArray, name ) {

			var clipArray = objectOrClipArray;

			if ( ! Array.isArray( objectOrClipArray ) ) {

				var o = objectOrClipArray;
				clipArray = o.geometry && o.geometry.animations || o.animations;

			}

			for ( var i = 0; i < clipArray.length; i ++ ) {

				if ( clipArray[ i ].name === name ) {

					return clipArray[ i ];

				}

			}

			return null;

		},

		CreateClipsFromMorphTargetSequences: function ( morphTargets, fps, noLoop ) {

			var animationToMorphTargets = {};

			// tested with https://regex101.com/ on trick sequences
			// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
			var pattern = /^([\w-]*?)([\d]+)$/;

			// sort morph target names into animation groups based
			// patterns like Walk_001, Walk_002, Run_001, Run_002
			for ( var i = 0, il = morphTargets.length; i < il; i ++ ) {

				var morphTarget = morphTargets[ i ];
				var parts = morphTarget.name.match( pattern );

				if ( parts && parts.length > 1 ) {

					var name = parts[ 1 ];

					var animationMorphTargets = animationToMorphTargets[ name ];
					if ( ! animationMorphTargets ) {

						animationToMorphTargets[ name ] = animationMorphTargets = [];

					}

					animationMorphTargets.push( morphTarget );

				}

			}

			var clips = [];

			for ( var name in animationToMorphTargets ) {

				clips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );

			}

			return clips;

		},

		// parse the animation.hierarchy format
		parseAnimation: function ( animation, bones ) {

			if ( ! animation ) {

				console.error( 'THREE.AnimationClip: No animation in JSONLoader data.' );
				return null;

			}

			var addNonemptyTrack = function ( trackType, trackName, animationKeys, propertyName, destTracks ) {

				// only return track if there are actually keys.
				if ( animationKeys.length !== 0 ) {

					var times = [];
					var values = [];

					AnimationUtils.flattenJSON( animationKeys, times, values, propertyName );

					// empty keys are filtered out, so check again
					if ( times.length !== 0 ) {

						destTracks.push( new trackType( trackName, times, values ) );

					}

				}

			};

			var tracks = [];

			var clipName = animation.name || 'default';
			// automatic length determination in AnimationClip.
			var duration = animation.length || - 1;
			var fps = animation.fps || 30;

			var hierarchyTracks = animation.hierarchy || [];

			for ( var h = 0; h < hierarchyTracks.length; h ++ ) {

				var animationKeys = hierarchyTracks[ h ].keys;

				// skip empty tracks
				if ( ! animationKeys || animationKeys.length === 0 ) continue;

				// process morph targets
				if ( animationKeys[ 0 ].morphTargets ) {

					// figure out all morph targets used in this track
					var morphTargetNames = {};

					for ( var k = 0; k < animationKeys.length; k ++ ) {

						if ( animationKeys[ k ].morphTargets ) {

							for ( var m = 0; m < animationKeys[ k ].morphTargets.length; m ++ ) {

								morphTargetNames[ animationKeys[ k ].morphTargets[ m ] ] = - 1;

							}

						}

					}

					// create a track for each morph target with all zero
					// morphTargetInfluences except for the keys in which
					// the morphTarget is named.
					for ( var morphTargetName in morphTargetNames ) {

						var times = [];
						var values = [];

						for ( var m = 0; m !== animationKeys[ k ].morphTargets.length; ++ m ) {

							var animationKey = animationKeys[ k ];

							times.push( animationKey.time );
							values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );

						}

						tracks.push( new NumberKeyframeTrack( '.morphTargetInfluence[' + morphTargetName + ']', times, values ) );

					}

					duration = morphTargetNames.length * ( fps || 1.0 );

				} else {

					// ...assume skeletal animation

					var boneName = '.bones[' + bones[ h ].name + ']';

					addNonemptyTrack(
							VectorKeyframeTrack, boneName + '.position',
							animationKeys, 'pos', tracks );

					addNonemptyTrack(
							QuaternionKeyframeTrack, boneName + '.quaternion',
							animationKeys, 'rot', tracks );

					addNonemptyTrack(
							VectorKeyframeTrack, boneName + '.scale',
							animationKeys, 'scl', tracks );

				}

			}

			if ( tracks.length === 0 ) {

				return null;

			}

			var clip = new AnimationClip( clipName, duration, tracks );

			return clip;

		}

	} );

	Object.assign( AnimationClip.prototype, {

		resetDuration: function () {

			var tracks = this.tracks, duration = 0;

			for ( var i = 0, n = tracks.length; i !== n; ++ i ) {

				var track = this.tracks[ i ];

				duration = Math.max( duration, track.times[ track.times.length - 1 ] );

			}

			this.duration = duration;

		},

		trim: function () {

			for ( var i = 0; i < this.tracks.length; i ++ ) {

				this.tracks[ i ].trim( 0, this.duration );

			}

			return this;

		},

		optimize: function () {

			for ( var i = 0; i < this.tracks.length; i ++ ) {

				this.tracks[ i ].optimize();

			}

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function MaterialLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
		this.textures = {};

	}

	Object.assign( MaterialLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var loader = new FileLoader( scope.manager );
			loader.load( url, function ( text ) {

				onLoad( scope.parse( JSON.parse( text ) ) );

			}, onProgress, onError );

		},

		setTextures: function ( value ) {

			this.textures = value;

		},

		parse: function ( json ) {

			var textures = this.textures;

			function getTexture( name ) {

				if ( textures[ name ] === undefined ) {

					console.warn( 'THREE.MaterialLoader: Undefined texture', name );

				}

				return textures[ name ];

			}

			var material = new Materials[ json.type ]();

			if ( json.uuid !== undefined ) material.uuid = json.uuid;
			if ( json.name !== undefined ) material.name = json.name;
			if ( json.color !== undefined ) material.color.setHex( json.color );
			if ( json.roughness !== undefined ) material.roughness = json.roughness;
			if ( json.metalness !== undefined ) material.metalness = json.metalness;
			if ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );
			if ( json.specular !== undefined ) material.specular.setHex( json.specular );
			if ( json.shininess !== undefined ) material.shininess = json.shininess;
			if ( json.clearCoat !== undefined ) material.clearCoat = json.clearCoat;
			if ( json.clearCoatRoughness !== undefined ) material.clearCoatRoughness = json.clearCoatRoughness;
			if ( json.uniforms !== undefined ) material.uniforms = json.uniforms;
			if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;
			if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;
			if ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;
			if ( json.fog !== undefined ) material.fog = json.fog;
			if ( json.shading !== undefined ) material.shading = json.shading;
			if ( json.blending !== undefined ) material.blending = json.blending;
			if ( json.side !== undefined ) material.side = json.side;
			if ( json.opacity !== undefined ) material.opacity = json.opacity;
			if ( json.transparent !== undefined ) material.transparent = json.transparent;
			if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;
			if ( json.depthTest !== undefined ) material.depthTest = json.depthTest;
			if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;
			if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;
			if ( json.wireframe !== undefined ) material.wireframe = json.wireframe;
			if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;
			if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;
			if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;
			if ( json.skinning !== undefined ) material.skinning = json.skinning;
			if ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets;

			// for PointsMaterial

			if ( json.size !== undefined ) material.size = json.size;
			if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;

			// maps

			if ( json.map !== undefined ) material.map = getTexture( json.map );

			if ( json.alphaMap !== undefined ) {

				material.alphaMap = getTexture( json.alphaMap );
				material.transparent = true;

			}

			if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );
			if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;

			if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );
			if ( json.normalScale !== undefined ) {

				var normalScale = json.normalScale;

				if ( Array.isArray( normalScale ) === false ) {

					// Blender exporter used to export a scalar. See #7459

					normalScale = [ normalScale, normalScale ];

				}

				material.normalScale = new Vector2().fromArray( normalScale );

			}

			if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );
			if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;
			if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;

			if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );
			if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );

			if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );
			if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;

			if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );

			if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );

			if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;

			if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );
			if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;

			if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );
			if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;

			if ( json.gradientMap !== undefined ) material.gradientMap = getTexture( json.gradientMap );

			return material;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function BufferGeometryLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( BufferGeometryLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var loader = new FileLoader( scope.manager );
			loader.load( url, function ( text ) {

				onLoad( scope.parse( JSON.parse( text ) ) );

			}, onProgress, onError );

		},

		parse: function ( json ) {

			var geometry = new BufferGeometry();

			var index = json.data.index;

			if ( index !== undefined ) {

				var typedArray = new TYPED_ARRAYS[ index.type ]( index.array );
				geometry.setIndex( new BufferAttribute( typedArray, 1 ) );

			}

			var attributes = json.data.attributes;

			for ( var key in attributes ) {

				var attribute = attributes[ key ];
				var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );

				geometry.addAttribute( key, new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ) );

			}

			var groups = json.data.groups || json.data.drawcalls || json.data.offsets;

			if ( groups !== undefined ) {

				for ( var i = 0, n = groups.length; i !== n; ++ i ) {

					var group = groups[ i ];

					geometry.addGroup( group.start, group.count, group.materialIndex );

				}

			}

			var boundingSphere = json.data.boundingSphere;

			if ( boundingSphere !== undefined ) {

				var center = new Vector3();

				if ( boundingSphere.center !== undefined ) {

					center.fromArray( boundingSphere.center );

				}

				geometry.boundingSphere = new Sphere( center, boundingSphere.radius );

			}

			return geometry;

		}

	} );

	var TYPED_ARRAYS = {
		Int8Array: Int8Array,
		Uint8Array: Uint8Array,
		// Workaround for IE11 pre KB2929437. See #11440
		Uint8ClampedArray: typeof Uint8ClampedArray !== 'undefined' ? Uint8ClampedArray : Uint8Array,
		Int16Array: Int16Array,
		Uint16Array: Uint16Array,
		Int32Array: Int32Array,
		Uint32Array: Uint32Array,
		Float32Array: Float32Array,
		Float64Array: Float64Array
	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Loader() {

		this.onLoadStart = function () {};
		this.onLoadProgress = function () {};
		this.onLoadComplete = function () {};

	}

	Loader.Handlers = {

		handlers: [],

		add: function ( regex, loader ) {

			this.handlers.push( regex, loader );

		},

		get: function ( file ) {

			var handlers = this.handlers;

			for ( var i = 0, l = handlers.length; i < l; i += 2 ) {

				var regex = handlers[ i ];
				var loader = handlers[ i + 1 ];

				if ( regex.test( file ) ) {

					return loader;

				}

			}

			return null;

		}

	};

	Object.assign( Loader.prototype, {

		crossOrigin: undefined,

		extractUrlBase: function ( url ) {

			var parts = url.split( '/' );

			if ( parts.length === 1 ) return './';

			parts.pop();

			return parts.join( '/' ) + '/';

		},

		initMaterials: function ( materials, texturePath, crossOrigin ) {

			var array = [];

			for ( var i = 0; i < materials.length; ++ i ) {

				array[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );

			}

			return array;

		},

		createMaterial: ( function () {

			var BlendingMode = {
				NoBlending: NoBlending,
				NormalBlending: NormalBlending,
				AdditiveBlending: AdditiveBlending,
				SubtractiveBlending: SubtractiveBlending,
				MultiplyBlending: MultiplyBlending,
				CustomBlending: CustomBlending
			};

			var color = new Color();
			var textureLoader = new TextureLoader();
			var materialLoader = new MaterialLoader();

			return function createMaterial( m, texturePath, crossOrigin ) {

				// convert from old material format

				var textures = {};

				function loadTexture( path, repeat, offset, wrap, anisotropy ) {

					var fullPath = texturePath + path;
					var loader = Loader.Handlers.get( fullPath );

					var texture;

					if ( loader !== null ) {

						texture = loader.load( fullPath );

					} else {

						textureLoader.setCrossOrigin( crossOrigin );
						texture = textureLoader.load( fullPath );

					}

					if ( repeat !== undefined ) {

						texture.repeat.fromArray( repeat );

						if ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping;
						if ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping;

					}

					if ( offset !== undefined ) {

						texture.offset.fromArray( offset );

					}

					if ( wrap !== undefined ) {

						if ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping;
						if ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping;

						if ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping;
						if ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping;

					}

					if ( anisotropy !== undefined ) {

						texture.anisotropy = anisotropy;

					}

					var uuid = _Math.generateUUID();

					textures[ uuid ] = texture;

					return uuid;

				}

				//

				var json = {
					uuid: _Math.generateUUID(),
					type: 'MeshLambertMaterial'
				};

				for ( var name in m ) {

					var value = m[ name ];

					switch ( name ) {

						case 'DbgColor':
						case 'DbgIndex':
						case 'opticalDensity':
						case 'illumination':
							break;
						case 'DbgName':
							json.name = value;
							break;
						case 'blending':
							json.blending = BlendingMode[ value ];
							break;
						case 'colorAmbient':
						case 'mapAmbient':
							console.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' );
							break;
						case 'colorDiffuse':
							json.color = color.fromArray( value ).getHex();
							break;
						case 'colorSpecular':
							json.specular = color.fromArray( value ).getHex();
							break;
						case 'colorEmissive':
							json.emissive = color.fromArray( value ).getHex();
							break;
						case 'specularCoef':
							json.shininess = value;
							break;
						case 'shading':
							if ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';
							if ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';
							if ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';
							break;
						case 'mapDiffuse':
							json.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );
							break;
						case 'mapDiffuseRepeat':
						case 'mapDiffuseOffset':
						case 'mapDiffuseWrap':
						case 'mapDiffuseAnisotropy':
							break;
						case 'mapEmissive':
							json.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy );
							break;
						case 'mapEmissiveRepeat':
						case 'mapEmissiveOffset':
						case 'mapEmissiveWrap':
						case 'mapEmissiveAnisotropy':
							break;
						case 'mapLight':
							json.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );
							break;
						case 'mapLightRepeat':
						case 'mapLightOffset':
						case 'mapLightWrap':
						case 'mapLightAnisotropy':
							break;
						case 'mapAO':
							json.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );
							break;
						case 'mapAORepeat':
						case 'mapAOOffset':
						case 'mapAOWrap':
						case 'mapAOAnisotropy':
							break;
						case 'mapBump':
							json.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );
							break;
						case 'mapBumpScale':
							json.bumpScale = value;
							break;
						case 'mapBumpRepeat':
						case 'mapBumpOffset':
						case 'mapBumpWrap':
						case 'mapBumpAnisotropy':
							break;
						case 'mapNormal':
							json.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );
							break;
						case 'mapNormalFactor':
							json.normalScale = [ value, value ];
							break;
						case 'mapNormalRepeat':
						case 'mapNormalOffset':
						case 'mapNormalWrap':
						case 'mapNormalAnisotropy':
							break;
						case 'mapSpecular':
							json.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );
							break;
						case 'mapSpecularRepeat':
						case 'mapSpecularOffset':
						case 'mapSpecularWrap':
						case 'mapSpecularAnisotropy':
							break;
						case 'mapMetalness':
							json.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy );
							break;
						case 'mapMetalnessRepeat':
						case 'mapMetalnessOffset':
						case 'mapMetalnessWrap':
						case 'mapMetalnessAnisotropy':
							break;
						case 'mapRoughness':
							json.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy );
							break;
						case 'mapRoughnessRepeat':
						case 'mapRoughnessOffset':
						case 'mapRoughnessWrap':
						case 'mapRoughnessAnisotropy':
							break;
						case 'mapAlpha':
							json.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );
							break;
						case 'mapAlphaRepeat':
						case 'mapAlphaOffset':
						case 'mapAlphaWrap':
						case 'mapAlphaAnisotropy':
							break;
						case 'flipSided':
							json.side = BackSide;
							break;
						case 'doubleSided':
							json.side = DoubleSide;
							break;
						case 'transparency':
							console.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );
							json.opacity = value;
							break;
						case 'depthTest':
						case 'depthWrite':
						case 'colorWrite':
						case 'opacity':
						case 'reflectivity':
						case 'transparent':
						case 'visible':
						case 'wireframe':
							json[ name ] = value;
							break;
						case 'vertexColors':
							if ( value === true ) json.vertexColors = VertexColors;
							if ( value === 'face' ) json.vertexColors = FaceColors;
							break;
						default:
							console.error( 'THREE.Loader.createMaterial: Unsupported', name, value );
							break;

					}

				}

				if ( json.type === 'MeshBasicMaterial' ) delete json.emissive;
				if ( json.type !== 'MeshPhongMaterial' ) delete json.specular;

				if ( json.opacity < 1 ) json.transparent = true;

				materialLoader.setTextures( textures );

				return materialLoader.parse( json );

			};

		} )()

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author alteredq / http://alteredqualia.com/
	 */

	function JSONLoader( manager ) {

		if ( typeof manager === 'boolean' ) {

			console.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' );
			manager = undefined;

		}

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

		this.withCredentials = false;

	}

	Object.assign( JSONLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var texturePath = this.texturePath && ( typeof this.texturePath === "string" ) ? this.texturePath : Loader.prototype.extractUrlBase( url );

			var loader = new FileLoader( this.manager );
			loader.setWithCredentials( this.withCredentials );
			loader.load( url, function ( text ) {

				var json = JSON.parse( text );
				var metadata = json.metadata;

				if ( metadata !== undefined ) {

					var type = metadata.type;

					if ( type !== undefined ) {

						if ( type.toLowerCase() === 'object' ) {

							console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' );
							return;

						}

						if ( type.toLowerCase() === 'scene' ) {

							console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.SceneLoader instead.' );
							return;

						}

					}

				}

				var object = scope.parse( json, texturePath );
				onLoad( object.geometry, object.materials );

			}, onProgress, onError );

		},

		setTexturePath: function ( value ) {

			this.texturePath = value;

		},

		parse: ( function () {

			function parseModel( json, geometry ) {

				function isBitSet( value, position ) {

					return value & ( 1 << position );

				}

				var i, j, fi,

					offset, zLength,

					colorIndex, normalIndex, uvIndex, materialIndex,

					type,
					isQuad,
					hasMaterial,
					hasFaceVertexUv,
					hasFaceNormal, hasFaceVertexNormal,
					hasFaceColor, hasFaceVertexColor,

					vertex, face, faceA, faceB, hex, normal,

					uvLayer, uv, u, v,

					faces = json.faces,
					vertices = json.vertices,
					normals = json.normals,
					colors = json.colors,

					scale = json.scale,

					nUvLayers = 0;


				if ( json.uvs !== undefined ) {

					// disregard empty arrays

					for ( i = 0; i < json.uvs.length; i ++ ) {

						if ( json.uvs[ i ].length ) nUvLayers ++;

					}

					for ( i = 0; i < nUvLayers; i ++ ) {

						geometry.faceVertexUvs[ i ] = [];

					}

				}

				offset = 0;
				zLength = vertices.length;

				while ( offset < zLength ) {

					vertex = new Vector3();

					vertex.x = vertices[ offset ++ ] * scale;
					vertex.y = vertices[ offset ++ ] * scale;
					vertex.z = vertices[ offset ++ ] * scale;

					geometry.vertices.push( vertex );

				}

				offset = 0;
				zLength = faces.length;

				while ( offset < zLength ) {

					type = faces[ offset ++ ];

					isQuad = isBitSet( type, 0 );
					hasMaterial = isBitSet( type, 1 );
					hasFaceVertexUv = isBitSet( type, 3 );
					hasFaceNormal = isBitSet( type, 4 );
					hasFaceVertexNormal = isBitSet( type, 5 );
					hasFaceColor = isBitSet( type, 6 );
					hasFaceVertexColor = isBitSet( type, 7 );

					// console.log("type", type, "bits", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor);

					if ( isQuad ) {

						faceA = new Face3();
						faceA.a = faces[ offset ];
						faceA.b = faces[ offset + 1 ];
						faceA.c = faces[ offset + 3 ];

						faceB = new Face3();
						faceB.a = faces[ offset + 1 ];
						faceB.b = faces[ offset + 2 ];
						faceB.c = faces[ offset + 3 ];

						offset += 4;

						if ( hasMaterial ) {

							materialIndex = faces[ offset ++ ];
							faceA.materialIndex = materialIndex;
							faceB.materialIndex = materialIndex;

						}

						// to get face <=> uv index correspondence

						fi = geometry.faces.length;

						if ( hasFaceVertexUv ) {

							for ( i = 0; i < nUvLayers; i ++ ) {

								uvLayer = json.uvs[ i ];

								geometry.faceVertexUvs[ i ][ fi ] = [];
								geometry.faceVertexUvs[ i ][ fi + 1 ] = [];

								for ( j = 0; j < 4; j ++ ) {

									uvIndex = faces[ offset ++ ];

									u = uvLayer[ uvIndex * 2 ];
									v = uvLayer[ uvIndex * 2 + 1 ];

									uv = new Vector2( u, v );

									if ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv );
									if ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv );

								}

							}

						}

						if ( hasFaceNormal ) {

							normalIndex = faces[ offset ++ ] * 3;

							faceA.normal.set(
								normals[ normalIndex ++ ],
								normals[ normalIndex ++ ],
								normals[ normalIndex ]
							);

							faceB.normal.copy( faceA.normal );

						}

						if ( hasFaceVertexNormal ) {

							for ( i = 0; i < 4; i ++ ) {

								normalIndex = faces[ offset ++ ] * 3;

								normal = new Vector3(
									normals[ normalIndex ++ ],
									normals[ normalIndex ++ ],
									normals[ normalIndex ]
								);


								if ( i !== 2 ) faceA.vertexNormals.push( normal );
								if ( i !== 0 ) faceB.vertexNormals.push( normal );

							}

						}


						if ( hasFaceColor ) {

							colorIndex = faces[ offset ++ ];
							hex = colors[ colorIndex ];

							faceA.color.setHex( hex );
							faceB.color.setHex( hex );

						}


						if ( hasFaceVertexColor ) {

							for ( i = 0; i < 4; i ++ ) {

								colorIndex = faces[ offset ++ ];
								hex = colors[ colorIndex ];

								if ( i !== 2 ) faceA.vertexColors.push( new Color( hex ) );
								if ( i !== 0 ) faceB.vertexColors.push( new Color( hex ) );

							}

						}

						geometry.faces.push( faceA );
						geometry.faces.push( faceB );

					} else {

						face = new Face3();
						face.a = faces[ offset ++ ];
						face.b = faces[ offset ++ ];
						face.c = faces[ offset ++ ];

						if ( hasMaterial ) {

							materialIndex = faces[ offset ++ ];
							face.materialIndex = materialIndex;

						}

						// to get face <=> uv index correspondence

						fi = geometry.faces.length;

						if ( hasFaceVertexUv ) {

							for ( i = 0; i < nUvLayers; i ++ ) {

								uvLayer = json.uvs[ i ];

								geometry.faceVertexUvs[ i ][ fi ] = [];

								for ( j = 0; j < 3; j ++ ) {

									uvIndex = faces[ offset ++ ];

									u = uvLayer[ uvIndex * 2 ];
									v = uvLayer[ uvIndex * 2 + 1 ];

									uv = new Vector2( u, v );

									geometry.faceVertexUvs[ i ][ fi ].push( uv );

								}

							}

						}

						if ( hasFaceNormal ) {

							normalIndex = faces[ offset ++ ] * 3;

							face.normal.set(
								normals[ normalIndex ++ ],
								normals[ normalIndex ++ ],
								normals[ normalIndex ]
							);

						}

						if ( hasFaceVertexNormal ) {

							for ( i = 0; i < 3; i ++ ) {

								normalIndex = faces[ offset ++ ] * 3;

								normal = new Vector3(
									normals[ normalIndex ++ ],
									normals[ normalIndex ++ ],
									normals[ normalIndex ]
								);

								face.vertexNormals.push( normal );

							}

						}


						if ( hasFaceColor ) {

							colorIndex = faces[ offset ++ ];
							face.color.setHex( colors[ colorIndex ] );

						}


						if ( hasFaceVertexColor ) {

							for ( i = 0; i < 3; i ++ ) {

								colorIndex = faces[ offset ++ ];
								face.vertexColors.push( new Color( colors[ colorIndex ] ) );

							}

						}

						geometry.faces.push( face );

					}

				}

			}

			function parseSkin( json, geometry ) {

				var influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2;

				if ( json.skinWeights ) {

					for ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) {

						var x = json.skinWeights[ i ];
						var y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0;
						var z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0;
						var w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0;

						geometry.skinWeights.push( new Vector4( x, y, z, w ) );

					}

				}

				if ( json.skinIndices ) {

					for ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) {

						var a = json.skinIndices[ i ];
						var b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0;
						var c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0;
						var d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0;

						geometry.skinIndices.push( new Vector4( a, b, c, d ) );

					}

				}

				geometry.bones = json.bones;

				if ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) {

					console.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' +
						geometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' );

				}

			}

			function parseMorphing( json, geometry ) {

				var scale = json.scale;

				if ( json.morphTargets !== undefined ) {

					for ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) {

						geometry.morphTargets[ i ] = {};
						geometry.morphTargets[ i ].name = json.morphTargets[ i ].name;
						geometry.morphTargets[ i ].vertices = [];

						var dstVertices = geometry.morphTargets[ i ].vertices;
						var srcVertices = json.morphTargets[ i ].vertices;

						for ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) {

							var vertex = new Vector3();
							vertex.x = srcVertices[ v ] * scale;
							vertex.y = srcVertices[ v + 1 ] * scale;
							vertex.z = srcVertices[ v + 2 ] * scale;

							dstVertices.push( vertex );

						}

					}

				}

				if ( json.morphColors !== undefined && json.morphColors.length > 0 ) {

					console.warn( 'THREE.JSONLoader: "morphColors" no longer supported. Using them as face colors.' );

					var faces = geometry.faces;
					var morphColors = json.morphColors[ 0 ].colors;

					for ( var i = 0, l = faces.length; i < l; i ++ ) {

						faces[ i ].color.fromArray( morphColors, i * 3 );

					}

				}

			}

			function parseAnimations( json, geometry ) {

				var outputAnimations = [];

				// parse old style Bone/Hierarchy animations
				var animations = [];

				if ( json.animation !== undefined ) {

					animations.push( json.animation );

				}

				if ( json.animations !== undefined ) {

					if ( json.animations.length ) {

						animations = animations.concat( json.animations );

					} else {

						animations.push( json.animations );

					}

				}

				for ( var i = 0; i < animations.length; i ++ ) {

					var clip = AnimationClip.parseAnimation( animations[ i ], geometry.bones );
					if ( clip ) outputAnimations.push( clip );

				}

				// parse implicit morph animations
				if ( geometry.morphTargets ) {

					// TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary.
					var morphAnimationClips = AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );
					outputAnimations = outputAnimations.concat( morphAnimationClips );

				}

				if ( outputAnimations.length > 0 ) geometry.animations = outputAnimations;

			}

			return function ( json, texturePath ) {

				if ( json.data !== undefined ) {

					// Geometry 4.0 spec
					json = json.data;

				}

				if ( json.scale !== undefined ) {

					json.scale = 1.0 / json.scale;

				} else {

					json.scale = 1.0;

				}

				var geometry = new Geometry();

				parseModel( json, geometry );
				parseSkin( json, geometry );
				parseMorphing( json, geometry );
				parseAnimations( json, geometry );

				geometry.computeFaceNormals();
				geometry.computeBoundingSphere();

				if ( json.materials === undefined || json.materials.length === 0 ) {

					return { geometry: geometry };

				} else {

					var materials = Loader.prototype.initMaterials( json.materials, texturePath, this.crossOrigin );

					return { geometry: geometry, materials: materials };

				}

			};

		} )()

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function ObjectLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
		this.texturePath = '';

	}

	Object.assign( ObjectLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			if ( this.texturePath === '' ) {

				this.texturePath = url.substring( 0, url.lastIndexOf( '/' ) + 1 );

			}

			var scope = this;

			var loader = new FileLoader( scope.manager );
			loader.load( url, function ( text ) {

				var json = null;

				try {

					json = JSON.parse( text );

				} catch ( error ) {

					if ( onError !== undefined ) onError( error );

					console.error( 'THREE:ObjectLoader: Can\'t parse ' + url + '.', error.message );

					return;

				}

				var metadata = json.metadata;

				if ( metadata === undefined || metadata.type === undefined || metadata.type.toLowerCase() === 'geometry' ) {

					console.error( 'THREE.ObjectLoader: Can\'t load ' + url + '. Use THREE.JSONLoader instead.' );
					return;

				}

				scope.parse( json, onLoad );

			}, onProgress, onError );

		},

		setTexturePath: function ( value ) {

			this.texturePath = value;

		},

		setCrossOrigin: function ( value ) {

			this.crossOrigin = value;

		},

		parse: function ( json, onLoad ) {

			var geometries = this.parseGeometries( json.geometries );

			var images = this.parseImages( json.images, function () {

				if ( onLoad !== undefined ) onLoad( object );

			} );

			var textures = this.parseTextures( json.textures, images );
			var materials = this.parseMaterials( json.materials, textures );

			var object = this.parseObject( json.object, geometries, materials );

			if ( json.animations ) {

				object.animations = this.parseAnimations( json.animations );

			}

			if ( json.images === undefined || json.images.length === 0 ) {

				if ( onLoad !== undefined ) onLoad( object );

			}

			return object;

		},

		parseGeometries: function ( json ) {

			var geometries = {};

			if ( json !== undefined ) {

				var geometryLoader = new JSONLoader();
				var bufferGeometryLoader = new BufferGeometryLoader();

				for ( var i = 0, l = json.length; i < l; i ++ ) {

					var geometry;
					var data = json[ i ];

					switch ( data.type ) {

						case 'PlaneGeometry':
						case 'PlaneBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.width,
								data.height,
								data.widthSegments,
								data.heightSegments
							);

							break;

						case 'BoxGeometry':
						case 'BoxBufferGeometry':
						case 'CubeGeometry': // backwards compatible

							geometry = new Geometries[ data.type ](
								data.width,
								data.height,
								data.depth,
								data.widthSegments,
								data.heightSegments,
								data.depthSegments
							);

							break;

						case 'CircleGeometry':
						case 'CircleBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.segments,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'CylinderGeometry':
						case 'CylinderBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radiusTop,
								data.radiusBottom,
								data.height,
								data.radialSegments,
								data.heightSegments,
								data.openEnded,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'ConeGeometry':
						case 'ConeBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.height,
								data.radialSegments,
								data.heightSegments,
								data.openEnded,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'SphereGeometry':
						case 'SphereBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.widthSegments,
								data.heightSegments,
								data.phiStart,
								data.phiLength,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'DodecahedronGeometry':
						case 'IcosahedronGeometry':
						case 'OctahedronGeometry':
						case 'TetrahedronGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.detail
							);

							break;

						case 'RingGeometry':
						case 'RingBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.innerRadius,
								data.outerRadius,
								data.thetaSegments,
								data.phiSegments,
								data.thetaStart,
								data.thetaLength
							);

							break;

						case 'TorusGeometry':
						case 'TorusBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.tube,
								data.radialSegments,
								data.tubularSegments,
								data.arc
							);

							break;

						case 'TorusKnotGeometry':
						case 'TorusKnotBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.radius,
								data.tube,
								data.tubularSegments,
								data.radialSegments,
								data.p,
								data.q
							);

							break;

						case 'LatheGeometry':
						case 'LatheBufferGeometry':

							geometry = new Geometries[ data.type ](
								data.points,
								data.segments,
								data.phiStart,
								data.phiLength
							);

							break;

						case 'BufferGeometry':

							geometry = bufferGeometryLoader.parse( data );

							break;

						case 'Geometry':

							geometry = geometryLoader.parse( data, this.texturePath ).geometry;

							break;

						default:

							console.warn( 'THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"' );

							continue;

					}

					geometry.uuid = data.uuid;

					if ( data.name !== undefined ) geometry.name = data.name;

					geometries[ data.uuid ] = geometry;

				}

			}

			return geometries;

		},

		parseMaterials: function ( json, textures ) {

			var materials = {};

			if ( json !== undefined ) {

				var loader = new MaterialLoader();
				loader.setTextures( textures );

				for ( var i = 0, l = json.length; i < l; i ++ ) {

					var data = json[ i ];

					if ( data.type === 'MultiMaterial' ) {

						// Deprecated

						var array = [];

						for ( var j = 0; j < data.materials.length; j ++ ) {

							array.push( loader.parse( data.materials[ j ] ) );

						}

						materials[ data.uuid ] = array;

					} else {

						materials[ data.uuid ] = loader.parse( data );

					}

				}

			}

			return materials;

		},

		parseAnimations: function ( json ) {

			var animations = [];

			for ( var i = 0; i < json.length; i ++ ) {

				var clip = AnimationClip.parse( json[ i ] );

				animations.push( clip );

			}

			return animations;

		},

		parseImages: function ( json, onLoad ) {

			var scope = this;
			var images = {};

			function loadImage( url ) {

				scope.manager.itemStart( url );

				return loader.load( url, function () {

					scope.manager.itemEnd( url );

				}, undefined, function () {

					scope.manager.itemEnd( url );
					scope.manager.itemError( url );

				} );

			}

			if ( json !== undefined && json.length > 0 ) {

				var manager = new LoadingManager( onLoad );

				var loader = new ImageLoader( manager );
				loader.setCrossOrigin( this.crossOrigin );

				for ( var i = 0, l = json.length; i < l; i ++ ) {

					var image = json[ i ];
					var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( image.url ) ? image.url : scope.texturePath + image.url;

					images[ image.uuid ] = loadImage( path );

				}

			}

			return images;

		},

		parseTextures: function ( json, images ) {

			function parseConstant( value, type ) {

				if ( typeof( value ) === 'number' ) return value;

				console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );

				return type[ value ];

			}

			var textures = {};

			if ( json !== undefined ) {

				for ( var i = 0, l = json.length; i < l; i ++ ) {

					var data = json[ i ];

					if ( data.image === undefined ) {

						console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid );

					}

					if ( images[ data.image ] === undefined ) {

						console.warn( 'THREE.ObjectLoader: Undefined image', data.image );

					}

					var texture = new Texture( images[ data.image ] );
					texture.needsUpdate = true;

					texture.uuid = data.uuid;

					if ( data.name !== undefined ) texture.name = data.name;

					if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TEXTURE_MAPPING );

					if ( data.offset !== undefined ) texture.offset.fromArray( data.offset );
					if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );
					if ( data.wrap !== undefined ) {

						texture.wrapS = parseConstant( data.wrap[ 0 ], TEXTURE_WRAPPING );
						texture.wrapT = parseConstant( data.wrap[ 1 ], TEXTURE_WRAPPING );

					}

					if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TEXTURE_FILTER );
					if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TEXTURE_FILTER );
					if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;

					if ( data.flipY !== undefined ) texture.flipY = data.flipY;

					textures[ data.uuid ] = texture;

				}

			}

			return textures;

		},

		parseObject: function () {

			var matrix = new Matrix4();

			return function parseObject( data, geometries, materials ) {

				var object;

				function getGeometry( name ) {

					if ( geometries[ name ] === undefined ) {

						console.warn( 'THREE.ObjectLoader: Undefined geometry', name );

					}

					return geometries[ name ];

				}

				function getMaterial( name ) {

					if ( name === undefined ) return undefined;

					if ( Array.isArray( name ) ) {

						var array = [];

						for ( var i = 0, l = name.length; i < l; i ++ ) {

							var uuid = name[ i ];

							if ( materials[ uuid ] === undefined ) {

								console.warn( 'THREE.ObjectLoader: Undefined material', uuid );

							}

							array.push( materials[ uuid ] );

						}

						return array;

					}

					if ( materials[ name ] === undefined ) {

						console.warn( 'THREE.ObjectLoader: Undefined material', name );

					}

					return materials[ name ];

				}

				switch ( data.type ) {

					case 'Scene':

						object = new Scene();

						if ( data.background !== undefined ) {

							if ( Number.isInteger( data.background ) ) {

								object.background = new Color( data.background );

							}

						}

						if ( data.fog !== undefined ) {

							if ( data.fog.type === 'Fog' ) {

								object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );

							} else if ( data.fog.type === 'FogExp2' ) {

								object.fog = new FogExp2( data.fog.color, data.fog.density );

							}

						}

						break;

					case 'PerspectiveCamera':

						object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );

						if ( data.focus !== undefined ) object.focus = data.focus;
						if ( data.zoom !== undefined ) object.zoom = data.zoom;
						if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;
						if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;
						if ( data.view !== undefined ) object.view = Object.assign( {}, data.view );

						break;

					case 'OrthographicCamera':

						object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );

						break;

					case 'AmbientLight':

						object = new AmbientLight( data.color, data.intensity );

						break;

					case 'DirectionalLight':

						object = new DirectionalLight( data.color, data.intensity );

						break;

					case 'PointLight':

						object = new PointLight( data.color, data.intensity, data.distance, data.decay );

						break;

					case 'RectAreaLight':

						object = new RectAreaLight( data.color, data.intensity, data.width, data.height );

						break;

					case 'SpotLight':

						object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );

						break;

					case 'HemisphereLight':

						object = new HemisphereLight( data.color, data.groundColor, data.intensity );

						break;

					case 'SkinnedMesh':

						console.warn( 'THREE.ObjectLoader.parseObject() does not support SkinnedMesh yet.' );

					case 'Mesh':

						var geometry = getGeometry( data.geometry );
						var material = getMaterial( data.material );

						if ( geometry.bones && geometry.bones.length > 0 ) {

							object = new SkinnedMesh( geometry, material );

						} else {

							object = new Mesh( geometry, material );

						}

						break;

					case 'LOD':

						object = new LOD();

						break;

					case 'Line':

						object = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );

						break;

					case 'LineLoop':

						object = new LineLoop( getGeometry( data.geometry ), getMaterial( data.material ) );

						break;

					case 'LineSegments':

						object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );

						break;

					case 'PointCloud':
					case 'Points':

						object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );

						break;

					case 'Sprite':

						object = new Sprite( getMaterial( data.material ) );

						break;

					case 'Group':

						object = new Group();

						break;

					default:

						object = new Object3D();

				}

				object.uuid = data.uuid;

				if ( data.name !== undefined ) object.name = data.name;
				if ( data.matrix !== undefined ) {

					matrix.fromArray( data.matrix );
					matrix.decompose( object.position, object.quaternion, object.scale );

				} else {

					if ( data.position !== undefined ) object.position.fromArray( data.position );
					if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );
					if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );
					if ( data.scale !== undefined ) object.scale.fromArray( data.scale );

				}

				if ( data.castShadow !== undefined ) object.castShadow = data.castShadow;
				if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;

				if ( data.shadow ) {

					if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;
					if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;
					if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );
					if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );

				}

				if ( data.visible !== undefined ) object.visible = data.visible;
				if ( data.userData !== undefined ) object.userData = data.userData;

				if ( data.children !== undefined ) {

					for ( var child in data.children ) {

						object.add( this.parseObject( data.children[ child ], geometries, materials ) );

					}

				}

				if ( data.type === 'LOD' ) {

					var levels = data.levels;

					for ( var l = 0; l < levels.length; l ++ ) {

						var level = levels[ l ];
						var child = object.getObjectByProperty( 'uuid', level.object );

						if ( child !== undefined ) {

							object.addLevel( child, level.distance );

						}

					}

				}

				return object;

			};

		}()

	} );

	var TEXTURE_MAPPING = {
		UVMapping: UVMapping,
		CubeReflectionMapping: CubeReflectionMapping,
		CubeRefractionMapping: CubeRefractionMapping,
		EquirectangularReflectionMapping: EquirectangularReflectionMapping,
		EquirectangularRefractionMapping: EquirectangularRefractionMapping,
		SphericalReflectionMapping: SphericalReflectionMapping,
		CubeUVReflectionMapping: CubeUVReflectionMapping,
		CubeUVRefractionMapping: CubeUVRefractionMapping
	};

	var TEXTURE_WRAPPING = {
		RepeatWrapping: RepeatWrapping,
		ClampToEdgeWrapping: ClampToEdgeWrapping,
		MirroredRepeatWrapping: MirroredRepeatWrapping
	};

	var TEXTURE_FILTER = {
		NearestFilter: NearestFilter,
		NearestMipMapNearestFilter: NearestMipMapNearestFilter,
		NearestMipMapLinearFilter: NearestMipMapLinearFilter,
		LinearFilter: LinearFilter,
		LinearMipMapNearestFilter: LinearMipMapNearestFilter,
		LinearMipMapLinearFilter: LinearMipMapLinearFilter
	};

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 *
	 * Bezier Curves formulas obtained from
	 * http://en.wikipedia.org/wiki/Bézier_curve
	 */

	function CatmullRom( t, p0, p1, p2, p3 ) {

		var v0 = ( p2 - p0 ) * 0.5;
		var v1 = ( p3 - p1 ) * 0.5;
		var t2 = t * t;
		var t3 = t * t2;
		return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;

	}

	//

	function QuadraticBezierP0( t, p ) {

		var k = 1 - t;
		return k * k * p;

	}

	function QuadraticBezierP1( t, p ) {

		return 2 * ( 1 - t ) * t * p;

	}

	function QuadraticBezierP2( t, p ) {

		return t * t * p;

	}

	function QuadraticBezier( t, p0, p1, p2 ) {

		return QuadraticBezierP0( t, p0 ) + QuadraticBezierP1( t, p1 ) +
			QuadraticBezierP2( t, p2 );

	}

	//

	function CubicBezierP0( t, p ) {

		var k = 1 - t;
		return k * k * k * p;

	}

	function CubicBezierP1( t, p ) {

		var k = 1 - t;
		return 3 * k * k * t * p;

	}

	function CubicBezierP2( t, p ) {

		return 3 * ( 1 - t ) * t * t * p;

	}

	function CubicBezierP3( t, p ) {

		return t * t * t * p;

	}

	function CubicBezier( t, p0, p1, p2, p3 ) {

		return CubicBezierP0( t, p0 ) + CubicBezierP1( t, p1 ) + CubicBezierP2( t, p2 ) +
			CubicBezierP3( t, p3 );

	}

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * Extensible curve object
	 *
	 * Some common of curve methods:
	 * .getPoint(t), getTangent(t)
	 * .getPointAt(u), getTangentAt(u)
	 * .getPoints(), .getSpacedPoints()
	 * .getLength()
	 * .updateArcLengths()
	 *
	 * This following curves inherit from THREE.Curve:
	 *
	 * -- 2D curves --
	 * THREE.ArcCurve
	 * THREE.CubicBezierCurve
	 * THREE.EllipseCurve
	 * THREE.LineCurve
	 * THREE.QuadraticBezierCurve
	 * THREE.SplineCurve
	 *
	 * -- 3D curves --
	 * THREE.CatmullRomCurve3
	 * THREE.CubicBezierCurve3
	 * THREE.LineCurve3
	 * THREE.QuadraticBezierCurve3
	 *
	 * A series of curves can be represented as a THREE.CurvePath.
	 *
	 **/

	/**************************************************************
	 *	Abstract Curve base class
	 **************************************************************/

	function Curve() {

		this.arcLengthDivisions = 200;

	}

	Object.assign( Curve.prototype, {

		// Virtual base class method to overwrite and implement in subclasses
		//	- t [0 .. 1]

		getPoint: function () {

			console.warn( 'THREE.Curve: .getPoint() not implemented.' );
			return null;

		},

		// Get point at relative position in curve according to arc length
		// - u [0 .. 1]

		getPointAt: function ( u ) {

			var t = this.getUtoTmapping( u );
			return this.getPoint( t );

		},

		// Get sequence of points using getPoint( t )

		getPoints: function ( divisions ) {

			if ( divisions === undefined ) divisions = 5;

			var points = [];

			for ( var d = 0; d <= divisions; d ++ ) {

				points.push( this.getPoint( d / divisions ) );

			}

			return points;

		},

		// Get sequence of points using getPointAt( u )

		getSpacedPoints: function ( divisions ) {

			if ( divisions === undefined ) divisions = 5;

			var points = [];

			for ( var d = 0; d <= divisions; d ++ ) {

				points.push( this.getPointAt( d / divisions ) );

			}

			return points;

		},

		// Get total curve arc length

		getLength: function () {

			var lengths = this.getLengths();
			return lengths[ lengths.length - 1 ];

		},

		// Get list of cumulative segment lengths

		getLengths: function ( divisions ) {

			if ( divisions === undefined ) divisions = this.arcLengthDivisions;

			if ( this.cacheArcLengths &&
				( this.cacheArcLengths.length === divisions + 1 ) &&
				! this.needsUpdate ) {

				return this.cacheArcLengths;

			}

			this.needsUpdate = false;

			var cache = [];
			var current, last = this.getPoint( 0 );
			var p, sum = 0;

			cache.push( 0 );

			for ( p = 1; p <= divisions; p ++ ) {

				current = this.getPoint( p / divisions );
				sum += current.distanceTo( last );
				cache.push( sum );
				last = current;

			}

			this.cacheArcLengths = cache;

			return cache; // { sums: cache, sum: sum }; Sum is in the last element.

		},

		updateArcLengths: function () {

			this.needsUpdate = true;
			this.getLengths();

		},

		// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant

		getUtoTmapping: function ( u, distance ) {

			var arcLengths = this.getLengths();

			var i = 0, il = arcLengths.length;

			var targetArcLength; // The targeted u distance value to get

			if ( distance ) {

				targetArcLength = distance;

			} else {

				targetArcLength = u * arcLengths[ il - 1 ];

			}

			// binary search for the index with largest value smaller than target u distance

			var low = 0, high = il - 1, comparison;

			while ( low <= high ) {

				i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats

				comparison = arcLengths[ i ] - targetArcLength;

				if ( comparison < 0 ) {

					low = i + 1;

				} else if ( comparison > 0 ) {

					high = i - 1;

				} else {

					high = i;
					break;

					// DONE

				}

			}

			i = high;

			if ( arcLengths[ i ] === targetArcLength ) {

				return i / ( il - 1 );

			}

			// we could get finer grain at lengths, or use simple interpolation between two points

			var lengthBefore = arcLengths[ i ];
			var lengthAfter = arcLengths[ i + 1 ];

			var segmentLength = lengthAfter - lengthBefore;

			// determine where we are between the 'before' and 'after' points

			var segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;

			// add that fractional amount to t

			var t = ( i + segmentFraction ) / ( il - 1 );

			return t;

		},

		// Returns a unit vector tangent at t
		// In case any sub curve does not implement its tangent derivation,
		// 2 points a small delta apart will be used to find its gradient
		// which seems to give a reasonable approximation

		getTangent: function ( t ) {

			var delta = 0.0001;
			var t1 = t - delta;
			var t2 = t + delta;

			// Capping in case of danger

			if ( t1 < 0 ) t1 = 0;
			if ( t2 > 1 ) t2 = 1;

			var pt1 = this.getPoint( t1 );
			var pt2 = this.getPoint( t2 );

			var vec = pt2.clone().sub( pt1 );
			return vec.normalize();

		},

		getTangentAt: function ( u ) {

			var t = this.getUtoTmapping( u );
			return this.getTangent( t );

		},

		computeFrenetFrames: function ( segments, closed ) {

			// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf

			var normal = new Vector3();

			var tangents = [];
			var normals = [];
			var binormals = [];

			var vec = new Vector3();
			var mat = new Matrix4();

			var i, u, theta;

			// compute the tangent vectors for each segment on the curve

			for ( i = 0; i <= segments; i ++ ) {

				u = i / segments;

				tangents[ i ] = this.getTangentAt( u );
				tangents[ i ].normalize();

			}

			// select an initial normal vector perpendicular to the first tangent vector,
			// and in the direction of the minimum tangent xyz component

			normals[ 0 ] = new Vector3();
			binormals[ 0 ] = new Vector3();
			var min = Number.MAX_VALUE;
			var tx = Math.abs( tangents[ 0 ].x );
			var ty = Math.abs( tangents[ 0 ].y );
			var tz = Math.abs( tangents[ 0 ].z );

			if ( tx <= min ) {

				min = tx;
				normal.set( 1, 0, 0 );

			}

			if ( ty <= min ) {

				min = ty;
				normal.set( 0, 1, 0 );

			}

			if ( tz <= min ) {

				normal.set( 0, 0, 1 );

			}

			vec.crossVectors( tangents[ 0 ], normal ).normalize();

			normals[ 0 ].crossVectors( tangents[ 0 ], vec );
			binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );


			// compute the slowly-varying normal and binormal vectors for each segment on the curve

			for ( i = 1; i <= segments; i ++ ) {

				normals[ i ] = normals[ i - 1 ].clone();

				binormals[ i ] = binormals[ i - 1 ].clone();

				vec.crossVectors( tangents[ i - 1 ], tangents[ i ] );

				if ( vec.length() > Number.EPSILON ) {

					vec.normalize();

					theta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors

					normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );

				}

				binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

			}

			// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same

			if ( closed === true ) {

				theta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );
				theta /= segments;

				if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {

					theta = - theta;

				}

				for ( i = 1; i <= segments; i ++ ) {

					// twist a little...
					normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );
					binormals[ i ].crossVectors( tangents[ i ], normals[ i ] );

				}

			}

			return {
				tangents: tangents,
				normals: normals,
				binormals: binormals
			};

		}

	} );

	function LineCurve( v1, v2 ) {

		Curve.call( this );

		this.v1 = v1;
		this.v2 = v2;

	}

	LineCurve.prototype = Object.create( Curve.prototype );
	LineCurve.prototype.constructor = LineCurve;

	LineCurve.prototype.isLineCurve = true;

	LineCurve.prototype.getPoint = function ( t ) {

		if ( t === 1 ) {

			return this.v2.clone();

		}

		var point = this.v2.clone().sub( this.v1 );
		point.multiplyScalar( t ).add( this.v1 );

		return point;

	};

	// Line curve is linear, so we can overwrite default getPointAt

	LineCurve.prototype.getPointAt = function ( u ) {

		return this.getPoint( u );

	};

	LineCurve.prototype.getTangent = function ( t ) {

		var tangent = this.v2.clone().sub( this.v1 );

		return tangent.normalize();

	};

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 *
	 **/

	/**************************************************************
	 *	Curved Path - a curve path is simply a array of connected
	 *  curves, but retains the api of a curve
	 **************************************************************/

	function CurvePath() {

		Curve.call( this );

		this.curves = [];

		this.autoClose = false; // Automatically closes the path

	}

	CurvePath.prototype = Object.assign( Object.create( Curve.prototype ), {

		constructor: CurvePath,

		add: function ( curve ) {

			this.curves.push( curve );

		},

		closePath: function () {

			// Add a line curve if start and end of lines are not connected
			var startPoint = this.curves[ 0 ].getPoint( 0 );
			var endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );

			if ( ! startPoint.equals( endPoint ) ) {

				this.curves.push( new LineCurve( endPoint, startPoint ) );

			}

		},

		// To get accurate point with reference to
		// entire path distance at time t,
		// following has to be done:

		// 1. Length of each sub path have to be known
		// 2. Locate and identify type of curve
		// 3. Get t for the curve
		// 4. Return curve.getPointAt(t')

		getPoint: function ( t ) {

			var d = t * this.getLength();
			var curveLengths = this.getCurveLengths();
			var i = 0;

			// To think about boundaries points.

			while ( i < curveLengths.length ) {

				if ( curveLengths[ i ] >= d ) {

					var diff = curveLengths[ i ] - d;
					var curve = this.curves[ i ];

					var segmentLength = curve.getLength();
					var u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;

					return curve.getPointAt( u );

				}

				i ++;

			}

			return null;

			// loop where sum != 0, sum > d , sum+1 <d

		},

		// We cannot use the default THREE.Curve getPoint() with getLength() because in
		// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
		// getPoint() depends on getLength

		getLength: function () {

			var lens = this.getCurveLengths();
			return lens[ lens.length - 1 ];

		},

		// cacheLengths must be recalculated.
		updateArcLengths: function () {

			this.needsUpdate = true;
			this.cacheLengths = null;
			this.getCurveLengths();

		},

		// Compute lengths and cache them
		// We cannot overwrite getLengths() because UtoT mapping uses it.

		getCurveLengths: function () {

			// We use cache values if curves and cache array are same length

			if ( this.cacheLengths && this.cacheLengths.length === this.curves.length ) {

				return this.cacheLengths;

			}

			// Get length of sub-curve
			// Push sums into cached array

			var lengths = [], sums = 0;

			for ( var i = 0, l = this.curves.length; i < l; i ++ ) {

				sums += this.curves[ i ].getLength();
				lengths.push( sums );

			}

			this.cacheLengths = lengths;

			return lengths;

		},

		getSpacedPoints: function ( divisions ) {

			if ( divisions === undefined ) divisions = 40;

			var points = [];

			for ( var i = 0; i <= divisions; i ++ ) {

				points.push( this.getPoint( i / divisions ) );

			}

			if ( this.autoClose ) {

				points.push( points[ 0 ] );

			}

			return points;

		},

		getPoints: function ( divisions ) {

			divisions = divisions || 12;

			var points = [], last;

			for ( var i = 0, curves = this.curves; i < curves.length; i ++ ) {

				var curve = curves[ i ];
				var resolution = (curve && curve.isEllipseCurve) ? divisions * 2
					: (curve && curve.isLineCurve) ? 1
					: (curve && curve.isSplineCurve) ? divisions * curve.points.length
					: divisions;

				var pts = curve.getPoints( resolution );

				for ( var j = 0; j < pts.length; j++ ) {

					var point = pts[ j ];

					if ( last && last.equals( point ) ) continue; // ensures no consecutive points are duplicates

					points.push( point );
					last = point;

				}

			}

			if ( this.autoClose && points.length > 1 && !points[ points.length - 1 ].equals( points[ 0 ] ) ) {

				points.push( points[ 0 ] );

			}

			return points;

		},

		/**************************************************************
		 *	Create Geometries Helpers
		 **************************************************************/

		/// Generate geometry from path points (for Line or Points objects)

		createPointsGeometry: function ( divisions ) {

			var pts = this.getPoints( divisions );
			return this.createGeometry( pts );

		},

		// Generate geometry from equidistant sampling along the path

		createSpacedPointsGeometry: function ( divisions ) {

			var pts = this.getSpacedPoints( divisions );
			return this.createGeometry( pts );

		},

		createGeometry: function ( points ) {

			var geometry = new Geometry();

			for ( var i = 0, l = points.length; i < l; i ++ ) {

				var point = points[ i ];
				geometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );

			}

			return geometry;

		}

	} );

	function EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

		Curve.call( this );

		this.aX = aX;
		this.aY = aY;

		this.xRadius = xRadius;
		this.yRadius = yRadius;

		this.aStartAngle = aStartAngle;
		this.aEndAngle = aEndAngle;

		this.aClockwise = aClockwise;

		this.aRotation = aRotation || 0;

	}

	EllipseCurve.prototype = Object.create( Curve.prototype );
	EllipseCurve.prototype.constructor = EllipseCurve;

	EllipseCurve.prototype.isEllipseCurve = true;

	EllipseCurve.prototype.getPoint = function ( t ) {

		var twoPi = Math.PI * 2;
		var deltaAngle = this.aEndAngle - this.aStartAngle;
		var samePoints = Math.abs( deltaAngle ) < Number.EPSILON;

		// ensures that deltaAngle is 0 .. 2 PI
		while ( deltaAngle < 0 ) deltaAngle += twoPi;
		while ( deltaAngle > twoPi ) deltaAngle -= twoPi;

		if ( deltaAngle < Number.EPSILON ) {

			if ( samePoints ) {

				deltaAngle = 0;

			} else {

				deltaAngle = twoPi;

			}

		}

		if ( this.aClockwise === true && ! samePoints ) {

			if ( deltaAngle === twoPi ) {

				deltaAngle = - twoPi;

			} else {

				deltaAngle = deltaAngle - twoPi;

			}

		}

		var angle = this.aStartAngle + t * deltaAngle;
		var x = this.aX + this.xRadius * Math.cos( angle );
		var y = this.aY + this.yRadius * Math.sin( angle );

		if ( this.aRotation !== 0 ) {

			var cos = Math.cos( this.aRotation );
			var sin = Math.sin( this.aRotation );

			var tx = x - this.aX;
			var ty = y - this.aY;

			// Rotate the point about the center of the ellipse.
			x = tx * cos - ty * sin + this.aX;
			y = tx * sin + ty * cos + this.aY;

		}

		return new Vector2( x, y );

	};

	function SplineCurve( points /* array of Vector2 */ ) {

		Curve.call( this );

		this.points = ( points === undefined ) ? [] : points;

	}

	SplineCurve.prototype = Object.create( Curve.prototype );
	SplineCurve.prototype.constructor = SplineCurve;

	SplineCurve.prototype.isSplineCurve = true;

	SplineCurve.prototype.getPoint = function ( t ) {

		var points = this.points;
		var point = ( points.length - 1 ) * t;

		var intPoint = Math.floor( point );
		var weight = point - intPoint;

		var point0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];
		var point1 = points[ intPoint ];
		var point2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];
		var point3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];

		return new Vector2(
			CatmullRom( weight, point0.x, point1.x, point2.x, point3.x ),
			CatmullRom( weight, point0.y, point1.y, point2.y, point3.y )
		);

	};

	function CubicBezierCurve( v0, v1, v2, v3 ) {

		Curve.call( this );

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;
		this.v3 = v3;

	}

	CubicBezierCurve.prototype = Object.create( Curve.prototype );
	CubicBezierCurve.prototype.constructor = CubicBezierCurve;

	CubicBezierCurve.prototype.getPoint = function ( t ) {

		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;

		return new Vector2(
			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
			CubicBezier( t, v0.y, v1.y, v2.y, v3.y )
		);

	};

	function QuadraticBezierCurve( v0, v1, v2 ) {

		Curve.call( this );

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;

	}

	QuadraticBezierCurve.prototype = Object.create( Curve.prototype );
	QuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve;

	QuadraticBezierCurve.prototype.getPoint = function ( t ) {

		var v0 = this.v0, v1 = this.v1, v2 = this.v2;

		return new Vector2(
			QuadraticBezier( t, v0.x, v1.x, v2.x ),
			QuadraticBezier( t, v0.y, v1.y, v2.y )
		);

	};

	var PathPrototype = Object.assign( Object.create( CurvePath.prototype ), {

		fromPoints: function ( vectors ) {

			this.moveTo( vectors[ 0 ].x, vectors[ 0 ].y );

			for ( var i = 1, l = vectors.length; i < l; i ++ ) {

				this.lineTo( vectors[ i ].x, vectors[ i ].y );

			}

		},

		moveTo: function ( x, y ) {

			this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?

		},

		lineTo: function ( x, y ) {

			var curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );
			this.curves.push( curve );

			this.currentPoint.set( x, y );

		},

		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {

			var curve = new QuadraticBezierCurve(
				this.currentPoint.clone(),
				new Vector2( aCPx, aCPy ),
				new Vector2( aX, aY )
			);

			this.curves.push( curve );

			this.currentPoint.set( aX, aY );

		},

		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {

			var curve = new CubicBezierCurve(
				this.currentPoint.clone(),
				new Vector2( aCP1x, aCP1y ),
				new Vector2( aCP2x, aCP2y ),
				new Vector2( aX, aY )
			);

			this.curves.push( curve );

			this.currentPoint.set( aX, aY );

		},

		splineThru: function ( pts /*Array of Vector*/ ) {

			var npts = [ this.currentPoint.clone() ].concat( pts );

			var curve = new SplineCurve( npts );
			this.curves.push( curve );

			this.currentPoint.copy( pts[ pts.length - 1 ] );

		},

		arc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

			var x0 = this.currentPoint.x;
			var y0 = this.currentPoint.y;

			this.absarc( aX + x0, aY + y0, aRadius,
				aStartAngle, aEndAngle, aClockwise );

		},

		absarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

			this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

		},

		ellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

			var x0 = this.currentPoint.x;
			var y0 = this.currentPoint.y;

			this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );

		},

		absellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {

			var curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );

			if ( this.curves.length > 0 ) {

				// if a previous curve is present, attempt to join
				var firstPoint = curve.getPoint( 0 );

				if ( ! firstPoint.equals( this.currentPoint ) ) {

					this.lineTo( firstPoint.x, firstPoint.y );

				}

			}

			this.curves.push( curve );

			var lastPoint = curve.getPoint( 1 );
			this.currentPoint.copy( lastPoint );

		}

	} );

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * Creates free form 2d path using series of points, lines or curves.
	 **/

	function Path( points ) {

		CurvePath.call( this );
		this.currentPoint = new Vector2();

		if ( points ) {

			this.fromPoints( points );

		}

	}

	Path.prototype = PathPrototype;
	PathPrototype.constructor = Path;

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * Defines a 2d shape plane using paths.
	 **/

	// STEP 1 Create a path.
	// STEP 2 Turn path into shape.
	// STEP 3 ExtrudeGeometry takes in Shape/Shapes
	// STEP 3a - Extract points from each shape, turn to vertices
	// STEP 3b - Triangulate each shape, add faces.

	function Shape() {

		Path.apply( this, arguments );

		this.holes = [];

	}

	Shape.prototype = Object.assign( Object.create( PathPrototype ), {

		constructor: Shape,

		getPointsHoles: function ( divisions ) {

			var holesPts = [];

			for ( var i = 0, l = this.holes.length; i < l; i ++ ) {

				holesPts[ i ] = this.holes[ i ].getPoints( divisions );

			}

			return holesPts;

		},

		// Get points of shape and holes (keypoints based on segments parameter)

		extractAllPoints: function ( divisions ) {

			return {

				shape: this.getPoints( divisions ),
				holes: this.getPointsHoles( divisions )

			};

		},

		extractPoints: function ( divisions ) {

			return this.extractAllPoints( divisions );

		}

	} );

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * minimal class for proxing functions to Path. Replaces old "extractSubpaths()"
	 **/

	function ShapePath() {

		this.subPaths = [];
		this.currentPath = null;

	}

	Object.assign( ShapePath.prototype, {

		moveTo: function ( x, y ) {

			this.currentPath = new Path();
			this.subPaths.push( this.currentPath );
			this.currentPath.moveTo( x, y );

		},

		lineTo: function ( x, y ) {

			this.currentPath.lineTo( x, y );

		},

		quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {

			this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );

		},

		bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {

			this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );

		},

		splineThru: function ( pts ) {

			this.currentPath.splineThru( pts );

		},

		toShapes: function ( isCCW, noHoles ) {

			function toShapesNoHoles( inSubpaths ) {

				var shapes = [];

				for ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {

					var tmpPath = inSubpaths[ i ];

					var tmpShape = new Shape();
					tmpShape.curves = tmpPath.curves;

					shapes.push( tmpShape );

				}

				return shapes;

			}

			function isPointInsidePolygon( inPt, inPolygon ) {

				var polyLen = inPolygon.length;

				// inPt on polygon contour => immediate success    or
				// toggling of inside/outside at every single! intersection point of an edge
				//  with the horizontal line through inPt, left of inPt
				//  not counting lowerY endpoints of edges and whole edges on that line
				var inside = false;
				for ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {

					var edgeLowPt  = inPolygon[ p ];
					var edgeHighPt = inPolygon[ q ];

					var edgeDx = edgeHighPt.x - edgeLowPt.x;
					var edgeDy = edgeHighPt.y - edgeLowPt.y;

					if ( Math.abs( edgeDy ) > Number.EPSILON ) {

						// not parallel
						if ( edgeDy < 0 ) {

							edgeLowPt  = inPolygon[ q ]; edgeDx = - edgeDx;
							edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;

						}
						if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) 		continue;

						if ( inPt.y === edgeLowPt.y ) {

							if ( inPt.x === edgeLowPt.x )		return	true;		// inPt is on contour ?
							// continue;				// no intersection or edgeLowPt => doesn't count !!!

						} else {

							var perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );
							if ( perpEdge === 0 )				return	true;		// inPt is on contour ?
							if ( perpEdge < 0 ) 				continue;
							inside = ! inside;		// true intersection left of inPt

						}

					} else {

						// parallel or collinear
						if ( inPt.y !== edgeLowPt.y ) 		continue;			// parallel
						// edge lies on the same horizontal line as inPt
						if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||
							 ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )		return	true;	// inPt: Point on contour !
						// continue;

					}

				}

				return	inside;

			}

			var isClockWise = ShapeUtils.isClockWise;

			var subPaths = this.subPaths;
			if ( subPaths.length === 0 ) return [];

			if ( noHoles === true )	return	toShapesNoHoles( subPaths );


			var solid, tmpPath, tmpShape, shapes = [];

			if ( subPaths.length === 1 ) {

				tmpPath = subPaths[ 0 ];
				tmpShape = new Shape();
				tmpShape.curves = tmpPath.curves;
				shapes.push( tmpShape );
				return shapes;

			}

			var holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );
			holesFirst = isCCW ? ! holesFirst : holesFirst;

			// console.log("Holes first", holesFirst);

			var betterShapeHoles = [];
			var newShapes = [];
			var newShapeHoles = [];
			var mainIdx = 0;
			var tmpPoints;

			newShapes[ mainIdx ] = undefined;
			newShapeHoles[ mainIdx ] = [];

			for ( var i = 0, l = subPaths.length; i < l; i ++ ) {

				tmpPath = subPaths[ i ];
				tmpPoints = tmpPath.getPoints();
				solid = isClockWise( tmpPoints );
				solid = isCCW ? ! solid : solid;

				if ( solid ) {

					if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )	mainIdx ++;

					newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };
					newShapes[ mainIdx ].s.curves = tmpPath.curves;

					if ( holesFirst )	mainIdx ++;
					newShapeHoles[ mainIdx ] = [];

					//console.log('cw', i);

				} else {

					newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );

					//console.log('ccw', i);

				}

			}

			// only Holes? -> probably all Shapes with wrong orientation
			if ( ! newShapes[ 0 ] )	return	toShapesNoHoles( subPaths );


			if ( newShapes.length > 1 ) {

				var ambiguous = false;
				var toChange = [];

				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

					betterShapeHoles[ sIdx ] = [];

				}

				for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {

					var sho = newShapeHoles[ sIdx ];

					for ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {

						var ho = sho[ hIdx ];
						var hole_unassigned = true;

						for ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {

							if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {

								if ( sIdx !== s2Idx )	toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );
								if ( hole_unassigned ) {

									hole_unassigned = false;
									betterShapeHoles[ s2Idx ].push( ho );

								} else {

									ambiguous = true;

								}

							}

						}
						if ( hole_unassigned ) {

							betterShapeHoles[ sIdx ].push( ho );

						}

					}

				}
				// console.log("ambiguous: ", ambiguous);
				if ( toChange.length > 0 ) {

					// console.log("to change: ", toChange);
					if ( ! ambiguous )	newShapeHoles = betterShapeHoles;

				}

			}

			var tmpHoles;

			for ( var i = 0, il = newShapes.length; i < il; i ++ ) {

				tmpShape = newShapes[ i ].s;
				shapes.push( tmpShape );
				tmpHoles = newShapeHoles[ i ];

				for ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {

					tmpShape.holes.push( tmpHoles[ j ].h );

				}

			}

			//console.log("shape", shapes);

			return shapes;

		}

	} );

	/**
	 * @author zz85 / http://www.lab4games.net/zz85/blog
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Font( data ) {

		this.data = data;

	}

	Object.assign( Font.prototype, {

		isFont: true,

		generateShapes: function ( text, size, divisions ) {

			function createPaths( text ) {

				var chars = String( text ).split( '' );
				var scale = size / data.resolution;
				var line_height = ( data.boundingBox.yMax - data.boundingBox.yMin + data.underlineThickness ) * scale;

				var offsetX = 0, offsetY = 0;

				var paths = [];

				for ( var i = 0; i < chars.length; i ++ ) {

					var char = chars[ i ];

					if ( char === '\n' ) {

						offsetX = 0;
						offsetY -= line_height;

					} else {

						var ret = createPath( char, scale, offsetX, offsetY );
						offsetX += ret.offsetX;
						paths.push( ret.path );

					}

				}

				return paths;

			}

			function createPath( c, scale, offsetX, offsetY ) {

				var glyph = data.glyphs[ c ] || data.glyphs[ '?' ];

				if ( ! glyph ) return;

				var path = new ShapePath();

				var pts = [];
				var x, y, cpx, cpy, cpx0, cpy0, cpx1, cpy1, cpx2, cpy2, laste;

				if ( glyph.o ) {

					var outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) );

					for ( var i = 0, l = outline.length; i < l; ) {

						var action = outline[ i ++ ];

						switch ( action ) {

							case 'm': // moveTo

								x = outline[ i ++ ] * scale + offsetX;
								y = outline[ i ++ ] * scale + offsetY;

								path.moveTo( x, y );

								break;

							case 'l': // lineTo

								x = outline[ i ++ ] * scale + offsetX;
								y = outline[ i ++ ] * scale + offsetY;

								path.lineTo( x, y );

								break;

							case 'q': // quadraticCurveTo

								cpx  = outline[ i ++ ] * scale + offsetX;
								cpy  = outline[ i ++ ] * scale + offsetY;
								cpx1 = outline[ i ++ ] * scale + offsetX;
								cpy1 = outline[ i ++ ] * scale + offsetY;

								path.quadraticCurveTo( cpx1, cpy1, cpx, cpy );

								laste = pts[ pts.length - 1 ];

								if ( laste ) {

									cpx0 = laste.x;
									cpy0 = laste.y;

									for ( var i2 = 1; i2 <= divisions; i2 ++ ) {

										var t = i2 / divisions;
										QuadraticBezier( t, cpx0, cpx1, cpx );
										QuadraticBezier( t, cpy0, cpy1, cpy );

									}

								}

								break;

							case 'b': // bezierCurveTo

								cpx  = outline[ i ++ ] * scale + offsetX;
								cpy  = outline[ i ++ ] * scale + offsetY;
								cpx1 = outline[ i ++ ] * scale + offsetX;
								cpy1 = outline[ i ++ ] * scale + offsetY;
								cpx2 = outline[ i ++ ] * scale + offsetX;
								cpy2 = outline[ i ++ ] * scale + offsetY;

								path.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy );

								laste = pts[ pts.length - 1 ];

								if ( laste ) {

									cpx0 = laste.x;
									cpy0 = laste.y;

									for ( var i2 = 1; i2 <= divisions; i2 ++ ) {

										var t = i2 / divisions;
										CubicBezier( t, cpx0, cpx1, cpx2, cpx );
										CubicBezier( t, cpy0, cpy1, cpy2, cpy );

									}

								}

								break;

						}

					}

				}

				return { offsetX: glyph.ha * scale, path: path };

			}

			//

			if ( size === undefined ) size = 100;
			if ( divisions === undefined ) divisions = 4;

			var data = this.data;

			var paths = createPaths( text );
			var shapes = [];

			for ( var p = 0, pl = paths.length; p < pl; p ++ ) {

				Array.prototype.push.apply( shapes, paths[ p ].toShapes() );

			}

			return shapes;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function FontLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( FontLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var scope = this;

			var loader = new FileLoader( this.manager );
			loader.load( url, function ( text ) {

				var json;

				try {

					json = JSON.parse( text );

				} catch ( e ) {

					console.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' );
					json = JSON.parse( text.substring( 65, text.length - 2 ) );

				}

				var font = scope.parse( json );

				if ( onLoad ) onLoad( font );

			}, onProgress, onError );

		},

		parse: function ( json ) {

			return new Font( json );

		}

	} );

	var context;

	var AudioContext = {

		getContext: function () {

			if ( context === undefined ) {

				context = new ( window.AudioContext || window.webkitAudioContext )();

			}

			return context;

		},

		setContext: function ( value ) {

			context = value;

		}

	};

	/**
	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
	 */

	function AudioLoader( manager ) {

		this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;

	}

	Object.assign( AudioLoader.prototype, {

		load: function ( url, onLoad, onProgress, onError ) {

			var loader = new FileLoader( this.manager );
			loader.setResponseType( 'arraybuffer' );
			loader.load( url, function ( buffer ) {

				var context = AudioContext.getContext();

				context.decodeAudioData( buffer, function ( audioBuffer ) {

					onLoad( audioBuffer );

				} );

			}, onProgress, onError );

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function StereoCamera() {

		this.type = 'StereoCamera';

		this.aspect = 1;

		this.eyeSep = 0.064;

		this.cameraL = new PerspectiveCamera();
		this.cameraL.layers.enable( 1 );
		this.cameraL.matrixAutoUpdate = false;

		this.cameraR = new PerspectiveCamera();
		this.cameraR.layers.enable( 2 );
		this.cameraR.matrixAutoUpdate = false;

	}

	Object.assign( StereoCamera.prototype, {

		update: ( function () {

			var instance, focus, fov, aspect, near, far, zoom, eyeSep;

			var eyeRight = new Matrix4();
			var eyeLeft = new Matrix4();

			return function update( camera ) {

				var needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov ||
													aspect !== camera.aspect * this.aspect || near !== camera.near ||
													far !== camera.far || zoom !== camera.zoom || eyeSep !== this.eyeSep;

				if ( needsUpdate ) {

					instance = this;
					focus = camera.focus;
					fov = camera.fov;
					aspect = camera.aspect * this.aspect;
					near = camera.near;
					far = camera.far;
					zoom = camera.zoom;

					// Off-axis stereoscopic effect based on
					// http://paulbourke.net/stereographics/stereorender/

					var projectionMatrix = camera.projectionMatrix.clone();
					eyeSep = this.eyeSep / 2;
					var eyeSepOnProjection = eyeSep * near / focus;
					var ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom;
					var xmin, xmax;

					// translate xOffset

					eyeLeft.elements[ 12 ] = - eyeSep;
					eyeRight.elements[ 12 ] = eyeSep;

					// for left eye

					xmin = - ymax * aspect + eyeSepOnProjection;
					xmax = ymax * aspect + eyeSepOnProjection;

					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

					this.cameraL.projectionMatrix.copy( projectionMatrix );

					// for right eye

					xmin = - ymax * aspect - eyeSepOnProjection;
					xmax = ymax * aspect - eyeSepOnProjection;

					projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );
					projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );

					this.cameraR.projectionMatrix.copy( projectionMatrix );

				}

				this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft );
				this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight );

			};

		} )()

	} );

	/**
	 * Camera for rendering cube maps
	 *	- renders scene into axis-aligned cube
	 *
	 * @author alteredq / http://alteredqualia.com/
	 */

	function CubeCamera( near, far, cubeResolution ) {

		Object3D.call( this );

		this.type = 'CubeCamera';

		var fov = 90, aspect = 1;

		var cameraPX = new PerspectiveCamera( fov, aspect, near, far );
		cameraPX.up.set( 0, - 1, 0 );
		cameraPX.lookAt( new Vector3( 1, 0, 0 ) );
		this.add( cameraPX );

		var cameraNX = new PerspectiveCamera( fov, aspect, near, far );
		cameraNX.up.set( 0, - 1, 0 );
		cameraNX.lookAt( new Vector3( - 1, 0, 0 ) );
		this.add( cameraNX );

		var cameraPY = new PerspectiveCamera( fov, aspect, near, far );
		cameraPY.up.set( 0, 0, 1 );
		cameraPY.lookAt( new Vector3( 0, 1, 0 ) );
		this.add( cameraPY );

		var cameraNY = new PerspectiveCamera( fov, aspect, near, far );
		cameraNY.up.set( 0, 0, - 1 );
		cameraNY.lookAt( new Vector3( 0, - 1, 0 ) );
		this.add( cameraNY );

		var cameraPZ = new PerspectiveCamera( fov, aspect, near, far );
		cameraPZ.up.set( 0, - 1, 0 );
		cameraPZ.lookAt( new Vector3( 0, 0, 1 ) );
		this.add( cameraPZ );

		var cameraNZ = new PerspectiveCamera( fov, aspect, near, far );
		cameraNZ.up.set( 0, - 1, 0 );
		cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );
		this.add( cameraNZ );

		var options = { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter };

		this.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options );
		this.renderTarget.texture.name = "CubeCamera";

		this.updateCubeMap = function ( renderer, scene ) {

			if ( this.parent === null ) this.updateMatrixWorld();

			var renderTarget = this.renderTarget;
			var generateMipmaps = renderTarget.texture.generateMipmaps;

			renderTarget.texture.generateMipmaps = false;

			renderTarget.activeCubeFace = 0;
			renderer.render( scene, cameraPX, renderTarget );

			renderTarget.activeCubeFace = 1;
			renderer.render( scene, cameraNX, renderTarget );

			renderTarget.activeCubeFace = 2;
			renderer.render( scene, cameraPY, renderTarget );

			renderTarget.activeCubeFace = 3;
			renderer.render( scene, cameraNY, renderTarget );

			renderTarget.activeCubeFace = 4;
			renderer.render( scene, cameraPZ, renderTarget );

			renderTarget.texture.generateMipmaps = generateMipmaps;

			renderTarget.activeCubeFace = 5;
			renderer.render( scene, cameraNZ, renderTarget );

			renderer.setRenderTarget( null );

		};

	}

	CubeCamera.prototype = Object.create( Object3D.prototype );
	CubeCamera.prototype.constructor = CubeCamera;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function AudioListener() {

		Object3D.call( this );

		this.type = 'AudioListener';

		this.context = AudioContext.getContext();

		this.gain = this.context.createGain();
		this.gain.connect( this.context.destination );

		this.filter = null;

	}

	AudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: AudioListener,

		getInput: function () {

			return this.gain;

		},

		removeFilter: function ( ) {

			if ( this.filter !== null ) {

				this.gain.disconnect( this.filter );
				this.filter.disconnect( this.context.destination );
				this.gain.connect( this.context.destination );
				this.filter = null;

			}

		},

		getFilter: function () {

			return this.filter;

		},

		setFilter: function ( value ) {

			if ( this.filter !== null ) {

				this.gain.disconnect( this.filter );
				this.filter.disconnect( this.context.destination );

			} else {

				this.gain.disconnect( this.context.destination );

			}

			this.filter = value;
			this.gain.connect( this.filter );
			this.filter.connect( this.context.destination );

		},

		getMasterVolume: function () {

			return this.gain.gain.value;

		},

		setMasterVolume: function ( value ) {

			this.gain.gain.value = value;

		},

		updateMatrixWorld: ( function () {

			var position = new Vector3();
			var quaternion = new Quaternion();
			var scale = new Vector3();

			var orientation = new Vector3();

			return function updateMatrixWorld( force ) {

				Object3D.prototype.updateMatrixWorld.call( this, force );

				var listener = this.context.listener;
				var up = this.up;

				this.matrixWorld.decompose( position, quaternion, scale );

				orientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );

				if ( listener.positionX ) {

					listener.positionX.setValueAtTime( position.x, this.context.currentTime );
					listener.positionY.setValueAtTime( position.y, this.context.currentTime );
					listener.positionZ.setValueAtTime( position.z, this.context.currentTime );
					listener.forwardX.setValueAtTime( orientation.x, this.context.currentTime );
					listener.forwardY.setValueAtTime( orientation.y, this.context.currentTime );
					listener.forwardZ.setValueAtTime( orientation.z, this.context.currentTime );
					listener.upX.setValueAtTime( up.x, this.context.currentTime );
					listener.upY.setValueAtTime( up.y, this.context.currentTime );
					listener.upZ.setValueAtTime( up.z, this.context.currentTime );

				} else {

					listener.setPosition( position.x, position.y, position.z );
					listener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );

				}

			};

		} )()

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Reece Aaron Lecrivain / http://reecenotes.com/
	 */

	function Audio( listener ) {

		Object3D.call( this );

		this.type = 'Audio';

		this.context = listener.context;

		this.gain = this.context.createGain();
		this.gain.connect( listener.getInput() );

		this.autoplay = false;

		this.buffer = null;
		this.loop = false;
		this.startTime = 0;
		this.playbackRate = 1;
		this.isPlaying = false;
		this.hasPlaybackControl = true;
		this.sourceType = 'empty';

		this.filters = [];

	}

	Audio.prototype = Object.assign( Object.create( Object3D.prototype ), {

		constructor: Audio,

		getOutput: function () {

			return this.gain;

		},

		setNodeSource: function ( audioNode ) {

			this.hasPlaybackControl = false;
			this.sourceType = 'audioNode';
			this.source = audioNode;
			this.connect();

			return this;

		},

		setBuffer: function ( audioBuffer ) {

			this.buffer = audioBuffer;
			this.sourceType = 'buffer';

			if ( this.autoplay ) this.play();

			return this;

		},

		play: function () {

			if ( this.isPlaying === true ) {

				console.warn( 'THREE.Audio: Audio is already playing.' );
				return;

			}

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			var source = this.context.createBufferSource();

			source.buffer = this.buffer;
			source.loop = this.loop;
			source.onended = this.onEnded.bind( this );
			source.playbackRate.setValueAtTime( this.playbackRate, this.startTime );
			source.start( 0, this.startTime );

			this.isPlaying = true;

			this.source = source;

			return this.connect();

		},

		pause: function () {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			this.source.stop();
			this.startTime = this.context.currentTime;
			this.isPlaying = false;

			return this;

		},

		stop: function () {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			this.source.stop();
			this.startTime = 0;
			this.isPlaying = false;

			return this;

		},

		connect: function () {

			if ( this.filters.length > 0 ) {

				this.source.connect( this.filters[ 0 ] );

				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {

					this.filters[ i - 1 ].connect( this.filters[ i ] );

				}

				this.filters[ this.filters.length - 1 ].connect( this.getOutput() );

			} else {

				this.source.connect( this.getOutput() );

			}

			return this;

		},

		disconnect: function () {

			if ( this.filters.length > 0 ) {

				this.source.disconnect( this.filters[ 0 ] );

				for ( var i = 1, l = this.filters.length; i < l; i ++ ) {

					this.filters[ i - 1 ].disconnect( this.filters[ i ] );

				}

				this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );

			} else {

				this.source.disconnect( this.getOutput() );

			}

			return this;

		},

		getFilters: function () {

			return this.filters;

		},

		setFilters: function ( value ) {

			if ( ! value ) value = [];

			if ( this.isPlaying === true ) {

				this.disconnect();
				this.filters = value;
				this.connect();

			} else {

				this.filters = value;

			}

			return this;

		},

		getFilter: function () {

			return this.getFilters()[ 0 ];

		},

		setFilter: function ( filter ) {

			return this.setFilters( filter ? [ filter ] : [] );

		},

		setPlaybackRate: function ( value ) {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			this.playbackRate = value;

			if ( this.isPlaying === true ) {

				this.source.playbackRate.setValueAtTime( this.playbackRate, this.context.currentTime );

			}

			return this;

		},

		getPlaybackRate: function () {

			return this.playbackRate;

		},

		onEnded: function () {

			this.isPlaying = false;

		},

		getLoop: function () {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return false;

			}

			return this.loop;

		},

		setLoop: function ( value ) {

			if ( this.hasPlaybackControl === false ) {

				console.warn( 'THREE.Audio: this Audio has no playback control.' );
				return;

			}

			this.loop = value;

			if ( this.isPlaying === true ) {

				this.source.loop = this.loop;

			}

			return this;

		},

		getVolume: function () {

			return this.gain.gain.value;

		},
		
		setVolume: function ( value ) {

			this.gain.gain.value = value;

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function PositionalAudio( listener ) {

		Audio.call( this, listener );

		this.panner = this.context.createPanner();
		this.panner.connect( this.gain );

	}

	PositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {

		constructor: PositionalAudio,

		getOutput: function () {

			return this.panner;

		},

		getRefDistance: function () {

			return this.panner.refDistance;

		},

		setRefDistance: function ( value ) {

			this.panner.refDistance = value;

		},

		getRolloffFactor: function () {

			return this.panner.rolloffFactor;

		},

		setRolloffFactor: function ( value ) {

			this.panner.rolloffFactor = value;

		},

		getDistanceModel: function () {

			return this.panner.distanceModel;

		},

		setDistanceModel: function ( value ) {

			this.panner.distanceModel = value;

		},

		getMaxDistance: function () {

			return this.panner.maxDistance;

		},

		setMaxDistance: function ( value ) {

			this.panner.maxDistance = value;

		},

		updateMatrixWorld: ( function () {

			var position = new Vector3();

			return function updateMatrixWorld( force ) {

				Object3D.prototype.updateMatrixWorld.call( this, force );

				position.setFromMatrixPosition( this.matrixWorld );

				this.panner.setPosition( position.x, position.y, position.z );

			};

		} )()


	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function AudioAnalyser( audio, fftSize ) {

		this.analyser = audio.context.createAnalyser();
		this.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;

		this.data = new Uint8Array( this.analyser.frequencyBinCount );

		audio.getOutput().connect( this.analyser );

	}

	Object.assign( AudioAnalyser.prototype, {

		getFrequencyData: function () {

			this.analyser.getByteFrequencyData( this.data );

			return this.data;

		},

		getAverageFrequency: function () {

			var value = 0, data = this.getFrequencyData();

			for ( var i = 0; i < data.length; i ++ ) {

				value += data[ i ];

			}

			return value / data.length;

		}

	} );

	/**
	 *
	 * Buffered scene graph property that allows weighted accumulation.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function PropertyMixer( binding, typeName, valueSize ) {

		this.binding = binding;
		this.valueSize = valueSize;

		var bufferType = Float64Array,
			mixFunction;

		switch ( typeName ) {

			case 'quaternion':
				mixFunction = this._slerp;
				break;

			case 'string':
			case 'bool':
				bufferType = Array;
				mixFunction = this._select;
				break;

			default:
				mixFunction = this._lerp;

		}

		this.buffer = new bufferType( valueSize * 4 );
		// layout: [ incoming | accu0 | accu1 | orig ]
		//
		// interpolators can use .buffer as their .result
		// the data then goes to 'incoming'
		//
		// 'accu0' and 'accu1' are used frame-interleaved for
		// the cumulative result and are compared to detect
		// changes
		//
		// 'orig' stores the original state of the property

		this._mixBufferRegion = mixFunction;

		this.cumulativeWeight = 0;

		this.useCount = 0;
		this.referenceCount = 0;

	}

	Object.assign( PropertyMixer.prototype, {

		// accumulate data in the 'incoming' region into 'accu<i>'
		accumulate: function ( accuIndex, weight ) {

			// note: happily accumulating nothing when weight = 0, the caller knows
			// the weight and shouldn't have made the call in the first place

			var buffer = this.buffer,
				stride = this.valueSize,
				offset = accuIndex * stride + stride,

				currentWeight = this.cumulativeWeight;

			if ( currentWeight === 0 ) {

				// accuN := incoming * weight

				for ( var i = 0; i !== stride; ++ i ) {

					buffer[ offset + i ] = buffer[ i ];

				}

				currentWeight = weight;

			} else {

				// accuN := accuN + incoming * weight

				currentWeight += weight;
				var mix = weight / currentWeight;
				this._mixBufferRegion( buffer, offset, 0, mix, stride );

			}

			this.cumulativeWeight = currentWeight;

		},

		// apply the state of 'accu<i>' to the binding when accus differ
		apply: function ( accuIndex ) {

			var stride = this.valueSize,
				buffer = this.buffer,
				offset = accuIndex * stride + stride,

				weight = this.cumulativeWeight,

				binding = this.binding;

			this.cumulativeWeight = 0;

			if ( weight < 1 ) {

				// accuN := accuN + original * ( 1 - cumulativeWeight )

				var originalValueOffset = stride * 3;

				this._mixBufferRegion(
					buffer, offset, originalValueOffset, 1 - weight, stride );

			}

			for ( var i = stride, e = stride + stride; i !== e; ++ i ) {

				if ( buffer[ i ] !== buffer[ i + stride ] ) {

					// value has changed -> update scene graph

					binding.setValue( buffer, offset );
					break;

				}

			}

		},

		// remember the state of the bound property and copy it to both accus
		saveOriginalState: function () {

			var binding = this.binding;

			var buffer = this.buffer,
				stride = this.valueSize,

				originalValueOffset = stride * 3;

			binding.getValue( buffer, originalValueOffset );

			// accu[0..1] := orig -- initially detect changes against the original
			for ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {

				buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];

			}

			this.cumulativeWeight = 0;

		},

		// apply the state previously taken via 'saveOriginalState' to the binding
		restoreOriginalState: function () {

			var originalValueOffset = this.valueSize * 3;
			this.binding.setValue( this.buffer, originalValueOffset );

		},


		// mix functions

		_select: function ( buffer, dstOffset, srcOffset, t, stride ) {

			if ( t >= 0.5 ) {

				for ( var i = 0; i !== stride; ++ i ) {

					buffer[ dstOffset + i ] = buffer[ srcOffset + i ];

				}

			}

		},

		_slerp: function ( buffer, dstOffset, srcOffset, t ) {

			Quaternion.slerpFlat( buffer, dstOffset, buffer, dstOffset, buffer, srcOffset, t );

		},

		_lerp: function ( buffer, dstOffset, srcOffset, t, stride ) {

			var s = 1 - t;

			for ( var i = 0; i !== stride; ++ i ) {

				var j = dstOffset + i;

				buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;

			}

		}

	} );

	/**
	 *
	 * A reference to a real property in the scene graph.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function Composite( targetGroup, path, optionalParsedPath ) {

		var parsedPath = optionalParsedPath || PropertyBinding.parseTrackName( path );

		this._targetGroup = targetGroup;
		this._bindings = targetGroup.subscribe_( path, parsedPath );

	}

	Object.assign( Composite.prototype, {

		getValue: function ( array, offset ) {

			this.bind(); // bind all binding

			var firstValidIndex = this._targetGroup.nCachedObjects_,
				binding = this._bindings[ firstValidIndex ];

			// and only call .getValue on the first
			if ( binding !== undefined ) binding.getValue( array, offset );

		},

		setValue: function ( array, offset ) {

			var bindings = this._bindings;

			for ( var i = this._targetGroup.nCachedObjects_,
					  n = bindings.length; i !== n; ++ i ) {

				bindings[ i ].setValue( array, offset );

			}

		},

		bind: function () {

			var bindings = this._bindings;

			for ( var i = this._targetGroup.nCachedObjects_,
					  n = bindings.length; i !== n; ++ i ) {

				bindings[ i ].bind();

			}

		},

		unbind: function () {

			var bindings = this._bindings;

			for ( var i = this._targetGroup.nCachedObjects_,
					  n = bindings.length; i !== n; ++ i ) {

				bindings[ i ].unbind();

			}

		}

	} );


	function PropertyBinding( rootNode, path, parsedPath ) {

		this.path = path;
		this.parsedPath = parsedPath || PropertyBinding.parseTrackName( path );

		this.node = PropertyBinding.findNode( rootNode, this.parsedPath.nodeName ) || rootNode;

		this.rootNode = rootNode;

	}

	Object.assign( PropertyBinding, {

		Composite: Composite,

		create: function ( root, path, parsedPath ) {

			if ( ! ( root && root.isAnimationObjectGroup ) ) {

				return new PropertyBinding( root, path, parsedPath );

			} else {

				return new PropertyBinding.Composite( root, path, parsedPath );

			}

		},

		/**
		 * Replaces spaces with underscores and removes unsupported characters from
		 * node names, to ensure compatibility with parseTrackName().
		 *
		 * @param  {string} name Node name to be sanitized.
		 * @return {string}
		 */
		sanitizeNodeName: function ( name ) {

			return name.replace( /\s/g, '_' ).replace( /[^\w-]/g, '' );

		},

		parseTrackName: function () {

			// Parent directories, delimited by '/' or ':'. Currently unused, but must
			// be matched to parse the rest of the track name.
			var directoryRe = /((?:[\w-]+[\/:])*)/;

			// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
			var nodeRe = /([\w-\.]+)?/;

			// Object on target node, and accessor. Name may contain only word
			// characters. Accessor may contain any character except closing bracket.
			var objectRe = /(?:\.([\w-]+)(?:\[(.+)\])?)?/;

			// Property and accessor. May contain only word characters. Accessor may
			// contain any non-bracket characters.
			var propertyRe = /\.([\w-]+)(?:\[(.+)\])?/;

			var trackRe = new RegExp(''
				+ '^'
				+ directoryRe.source
				+ nodeRe.source
				+ objectRe.source
				+ propertyRe.source
				+ '$'
			);

			var supportedObjectNames = [ 'material', 'materials', 'bones' ];

			return function ( trackName ) {

					var matches = trackRe.exec( trackName );

					if ( ! matches ) {

						throw new Error( 'PropertyBinding: Cannot parse trackName: ' + trackName );

					}

					var results = {
						// directoryName: matches[ 1 ], // (tschw) currently unused
						nodeName: matches[ 2 ],
						objectName: matches[ 3 ],
						objectIndex: matches[ 4 ],
						propertyName: matches[ 5 ],     // required
						propertyIndex: matches[ 6 ]
					};

					var lastDot = results.nodeName && results.nodeName.lastIndexOf( '.' );

					if ( lastDot !== undefined && lastDot !== -1 ) {

						var objectName = results.nodeName.substring( lastDot + 1 );

						// Object names must be checked against a whitelist. Otherwise, there
						// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
						// 'bar' could be the objectName, or part of a nodeName (which can
						// include '.' characters).
						if ( supportedObjectNames.indexOf( objectName ) !== -1 ) {

							results.nodeName = results.nodeName.substring( 0, lastDot );
							results.objectName = objectName;

						}

					}

					if ( results.propertyName === null || results.propertyName.length === 0 ) {

						throw new Error( 'PropertyBinding: can not parse propertyName from trackName: ' + trackName );

					}

					return results;

				};

		}(),

		findNode: function ( root, nodeName ) {

			if ( ! nodeName || nodeName === "" || nodeName === "root" || nodeName === "." || nodeName === - 1 || nodeName === root.name || nodeName === root.uuid ) {

				return root;

			}

			// search into skeleton bones.
			if ( root.skeleton ) {

				var searchSkeleton = function ( skeleton ) {

					for ( var i = 0; i < skeleton.bones.length; i ++ ) {

						var bone = skeleton.bones[ i ];

						if ( bone.name === nodeName ) {

							return bone;

						}

					}

					return null;

				};

				var bone = searchSkeleton( root.skeleton );

				if ( bone ) {

					return bone;

				}

			}

			// search into node subtree.
			if ( root.children ) {

				var searchNodeSubtree = function ( children ) {

					for ( var i = 0; i < children.length; i ++ ) {

						var childNode = children[ i ];

						if ( childNode.name === nodeName || childNode.uuid === nodeName ) {

							return childNode;

						}

						var result = searchNodeSubtree( childNode.children );

						if ( result ) return result;

					}

					return null;

				};

				var subTreeNode = searchNodeSubtree( root.children );

				if ( subTreeNode ) {

					return subTreeNode;

				}

			}

			return null;

		}

	} );

	Object.assign( PropertyBinding.prototype, { // prototype, continued

		// these are used to "bind" a nonexistent property
		_getValue_unavailable: function () {},
		_setValue_unavailable: function () {},

		BindingType: {
			Direct: 0,
			EntireArray: 1,
			ArrayElement: 2,
			HasFromToArray: 3
		},

		Versioning: {
			None: 0,
			NeedsUpdate: 1,
			MatrixWorldNeedsUpdate: 2
		},

		GetterByBindingType: [

			function getValue_direct( buffer, offset ) {

				buffer[ offset ] = this.node[ this.propertyName ];

			},

			function getValue_array( buffer, offset ) {

				var source = this.resolvedProperty;

				for ( var i = 0, n = source.length; i !== n; ++ i ) {

					buffer[ offset ++ ] = source[ i ];

				}

			},

			function getValue_arrayElement( buffer, offset ) {

				buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];

			},

			function getValue_toArray( buffer, offset ) {

				this.resolvedProperty.toArray( buffer, offset );

			}

		],

		SetterByBindingTypeAndVersioning: [

			[
				// Direct

				function setValue_direct( buffer, offset ) {

					this.node[ this.propertyName ] = buffer[ offset ];

				},

				function setValue_direct_setNeedsUpdate( buffer, offset ) {

					this.node[ this.propertyName ] = buffer[ offset ];
					this.targetObject.needsUpdate = true;

				},

				function setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {

					this.node[ this.propertyName ] = buffer[ offset ];
					this.targetObject.matrixWorldNeedsUpdate = true;

				}

			], [

				// EntireArray

				function setValue_array( buffer, offset ) {

					var dest = this.resolvedProperty;

					for ( var i = 0, n = dest.length; i !== n; ++ i ) {

						dest[ i ] = buffer[ offset ++ ];

					}

				},

				function setValue_array_setNeedsUpdate( buffer, offset ) {

					var dest = this.resolvedProperty;

					for ( var i = 0, n = dest.length; i !== n; ++ i ) {

						dest[ i ] = buffer[ offset ++ ];

					}

					this.targetObject.needsUpdate = true;

				},

				function setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {

					var dest = this.resolvedProperty;

					for ( var i = 0, n = dest.length; i !== n; ++ i ) {

						dest[ i ] = buffer[ offset ++ ];

					}

					this.targetObject.matrixWorldNeedsUpdate = true;

				}

			], [

				// ArrayElement

				function setValue_arrayElement( buffer, offset ) {

					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];

				},

				function setValue_arrayElement_setNeedsUpdate( buffer, offset ) {

					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
					this.targetObject.needsUpdate = true;

				},

				function setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {

					this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];
					this.targetObject.matrixWorldNeedsUpdate = true;

				}

			], [

				// HasToFromArray

				function setValue_fromArray( buffer, offset ) {

					this.resolvedProperty.fromArray( buffer, offset );

				},

				function setValue_fromArray_setNeedsUpdate( buffer, offset ) {

					this.resolvedProperty.fromArray( buffer, offset );
					this.targetObject.needsUpdate = true;

				},

				function setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {

					this.resolvedProperty.fromArray( buffer, offset );
					this.targetObject.matrixWorldNeedsUpdate = true;

				}

			]

		],

		getValue: function getValue_unbound( targetArray, offset ) {

			this.bind();
			this.getValue( targetArray, offset );

			// Note: This class uses a State pattern on a per-method basis:
			// 'bind' sets 'this.getValue' / 'setValue' and shadows the
			// prototype version of these methods with one that represents
			// the bound state. When the property is not found, the methods
			// become no-ops.

		},

		setValue: function getValue_unbound( sourceArray, offset ) {

			this.bind();
			this.setValue( sourceArray, offset );

		},

		// create getter / setter pair for a property in the scene graph
		bind: function () {

			var targetObject = this.node,
				parsedPath = this.parsedPath,

				objectName = parsedPath.objectName,
				propertyName = parsedPath.propertyName,
				propertyIndex = parsedPath.propertyIndex;

			if ( ! targetObject ) {

				targetObject = PropertyBinding.findNode(
						this.rootNode, parsedPath.nodeName ) || this.rootNode;

				this.node = targetObject;

			}

			// set fail state so we can just 'return' on error
			this.getValue = this._getValue_unavailable;
			this.setValue = this._setValue_unavailable;

			// ensure there is a value node
			if ( ! targetObject ) {

				console.error( 'THREE.PropertyBinding: Trying to update node for track: ' + this.path + ' but it wasn\'t found.' );
				return;

			}

			if ( objectName ) {

				var objectIndex = parsedPath.objectIndex;

				// special cases were we need to reach deeper into the hierarchy to get the face materials....
				switch ( objectName ) {

					case 'materials':

						if ( ! targetObject.material ) {

							console.error( 'THREE.PropertyBinding: Can not bind to material as node does not have a material.', this );
							return;

						}

						if ( ! targetObject.material.materials ) {

							console.error( 'THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.', this );
							return;

						}

						targetObject = targetObject.material.materials;

						break;

					case 'bones':

						if ( ! targetObject.skeleton ) {

							console.error( 'THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.', this );
							return;

						}

						// potential future optimization: skip this if propertyIndex is already an integer
						// and convert the integer string to a true integer.

						targetObject = targetObject.skeleton.bones;

						// support resolving morphTarget names into indices.
						for ( var i = 0; i < targetObject.length; i ++ ) {

							if ( targetObject[ i ].name === objectIndex ) {

								objectIndex = i;
								break;

							}

						}

						break;

					default:

						if ( targetObject[ objectName ] === undefined ) {

							console.error( 'THREE.PropertyBinding: Can not bind to objectName of node undefined.', this );
							return;

						}

						targetObject = targetObject[ objectName ];

				}


				if ( objectIndex !== undefined ) {

					if ( targetObject[ objectIndex ] === undefined ) {

						console.error( 'THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.', this, targetObject );
						return;

					}

					targetObject = targetObject[ objectIndex ];

				}

			}

			// resolve property
			var nodeProperty = targetObject[ propertyName ];

			if ( nodeProperty === undefined ) {

				var nodeName = parsedPath.nodeName;

				console.error( 'THREE.PropertyBinding: Trying to update property for track: ' + nodeName +
					'.' + propertyName + ' but it wasn\'t found.', targetObject );
				return;

			}

			// determine versioning scheme
			var versioning = this.Versioning.None;

			if ( targetObject.needsUpdate !== undefined ) { // material

				versioning = this.Versioning.NeedsUpdate;
				this.targetObject = targetObject;

			} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform

				versioning = this.Versioning.MatrixWorldNeedsUpdate;
				this.targetObject = targetObject;

			}

			// determine how the property gets bound
			var bindingType = this.BindingType.Direct;

			if ( propertyIndex !== undefined ) {

				// access a sub element of the property array (only primitives are supported right now)

				if ( propertyName === "morphTargetInfluences" ) {

					// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.

					// support resolving morphTarget names into indices.
					if ( ! targetObject.geometry ) {

						console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.', this );
						return;

					}

					if ( targetObject.geometry.isBufferGeometry ) {

						if ( ! targetObject.geometry.morphAttributes ) {

							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.', this );
							return;

						}

						for ( var i = 0; i < this.node.geometry.morphAttributes.position.length; i ++ ) {

							if ( targetObject.geometry.morphAttributes.position[ i ].name === propertyIndex ) {

								propertyIndex = i;
								break;

							}

						}


					} else {

						if ( ! targetObject.geometry.morphTargets ) {

							console.error( 'THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphTargets.', this );
							return;

						}

						for ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {

							if ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) {

								propertyIndex = i;
								break;

							}

						}

					}

				}

				bindingType = this.BindingType.ArrayElement;

				this.resolvedProperty = nodeProperty;
				this.propertyIndex = propertyIndex;

			} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {

				// must use copy for Object3D.Euler/Quaternion

				bindingType = this.BindingType.HasFromToArray;

				this.resolvedProperty = nodeProperty;

			} else if ( Array.isArray( nodeProperty ) ) {

				bindingType = this.BindingType.EntireArray;

				this.resolvedProperty = nodeProperty;

			} else {

				this.propertyName = propertyName;

			}

			// select getter / setter
			this.getValue = this.GetterByBindingType[ bindingType ];
			this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];

		},

		unbind: function () {

			this.node = null;

			// back to the prototype version of getValue / setValue
			// note: avoiding to mutate the shape of 'this' via 'delete'
			this.getValue = this._getValue_unbound;
			this.setValue = this._setValue_unbound;

		}

	} );

	//!\ DECLARE ALIAS AFTER assign prototype !
	Object.assign( PropertyBinding.prototype, {

		// initial state of these methods that calls 'bind'
		_getValue_unbound: PropertyBinding.prototype.getValue,
		_setValue_unbound: PropertyBinding.prototype.setValue,

	} );

	/**
	 *
	 * A group of objects that receives a shared animation state.
	 *
	 * Usage:
	 *
	 * 	-	Add objects you would otherwise pass as 'root' to the
	 * 		constructor or the .clipAction method of AnimationMixer.
	 *
	 * 	-	Instead pass this object as 'root'.
	 *
	 * 	-	You can also add and remove objects later when the mixer
	 * 		is running.
	 *
	 * Note:
	 *
	 *  	Objects of this class appear as one object to the mixer,
	 *  	so cache control of the individual objects must be done
	 *  	on the group.
	 *
	 * Limitation:
	 *
	 * 	- 	The animated properties must be compatible among the
	 * 		all objects in the group.
	 *
	 *  -	A single property can either be controlled through a
	 *  	target group or directly, but not both.
	 *
	 * @author tschw
	 */

	function AnimationObjectGroup( var_args ) {

		this.uuid = _Math.generateUUID();

		// cached objects followed by the active ones
		this._objects = Array.prototype.slice.call( arguments );

		this.nCachedObjects_ = 0;			// threshold
		// note: read by PropertyBinding.Composite

		var indices = {};
		this._indicesByUUID = indices;		// for bookkeeping

		for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

			indices[ arguments[ i ].uuid ] = i;

		}

		this._paths = [];					// inside: string
		this._parsedPaths = [];				// inside: { we don't care, here }
		this._bindings = []; 				// inside: Array< PropertyBinding >
		this._bindingsIndicesByPath = {}; 	// inside: indices in these arrays

		var scope = this;

		this.stats = {

			objects: {
				get total() { return scope._objects.length; },
				get inUse() { return this.total - scope.nCachedObjects_; }
			},

			get bindingsPerObject() { return scope._bindings.length; }

		};

	}

	Object.assign( AnimationObjectGroup.prototype, {

		isAnimationObjectGroup: true,

		add: function( var_args ) {

			var objects = this._objects,
				nObjects = objects.length,
				nCachedObjects = this.nCachedObjects_,
				indicesByUUID = this._indicesByUUID,
				paths = this._paths,
				parsedPaths = this._parsedPaths,
				bindings = this._bindings,
				nBindings = bindings.length;

			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

				var object = arguments[ i ],
					uuid = object.uuid,
					index = indicesByUUID[ uuid ],
					knownObject = undefined;

				if ( index === undefined ) {

					// unknown object -> add it to the ACTIVE region

					index = nObjects ++;
					indicesByUUID[ uuid ] = index;
					objects.push( object );

					// accounting is done, now do the same for all bindings

					for ( var j = 0, m = nBindings; j !== m; ++ j ) {

						bindings[ j ].push(
								new PropertyBinding(
									object, paths[ j ], parsedPaths[ j ] ) );

					}

				} else if ( index < nCachedObjects ) {

					knownObject = objects[ index ];

					// move existing object to the ACTIVE region

					var firstActiveIndex = -- nCachedObjects,
						lastCachedObject = objects[ firstActiveIndex ];

					indicesByUUID[ lastCachedObject.uuid ] = index;
					objects[ index ] = lastCachedObject;

					indicesByUUID[ uuid ] = firstActiveIndex;
					objects[ firstActiveIndex ] = object;

					// accounting is done, now do the same for all bindings

					for ( var j = 0, m = nBindings; j !== m; ++ j ) {

						var bindingsForPath = bindings[ j ],
							lastCached = bindingsForPath[ firstActiveIndex ],
							binding = bindingsForPath[ index ];

						bindingsForPath[ index ] = lastCached;

						if ( binding === undefined ) {

							// since we do not bother to create new bindings
							// for objects that are cached, the binding may
							// or may not exist

							binding = new PropertyBinding(
									object, paths[ j ], parsedPaths[ j ] );

						}

						bindingsForPath[ firstActiveIndex ] = binding;

					}

				} else if ( objects[ index ] !== knownObject ) {

					console.error( 'THREE.AnimationObjectGroup: Different objects with the same UUID ' +
							'detected. Clean the caches or recreate your infrastructure when reloading scenes.' );

				} // else the object is already where we want it to be

			} // for arguments

			this.nCachedObjects_ = nCachedObjects;

		},

		remove: function( var_args ) {

			var objects = this._objects,
				nCachedObjects = this.nCachedObjects_,
				indicesByUUID = this._indicesByUUID,
				bindings = this._bindings,
				nBindings = bindings.length;

			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

				var object = arguments[ i ],
					uuid = object.uuid,
					index = indicesByUUID[ uuid ];

				if ( index !== undefined && index >= nCachedObjects ) {

					// move existing object into the CACHED region

					var lastCachedIndex = nCachedObjects ++,
						firstActiveObject = objects[ lastCachedIndex ];

					indicesByUUID[ firstActiveObject.uuid ] = index;
					objects[ index ] = firstActiveObject;

					indicesByUUID[ uuid ] = lastCachedIndex;
					objects[ lastCachedIndex ] = object;

					// accounting is done, now do the same for all bindings

					for ( var j = 0, m = nBindings; j !== m; ++ j ) {

						var bindingsForPath = bindings[ j ],
							firstActive = bindingsForPath[ lastCachedIndex ],
							binding = bindingsForPath[ index ];

						bindingsForPath[ index ] = firstActive;
						bindingsForPath[ lastCachedIndex ] = binding;

					}

				}

			} // for arguments

			this.nCachedObjects_ = nCachedObjects;

		},

		// remove & forget
		uncache: function( var_args ) {

			var objects = this._objects,
				nObjects = objects.length,
				nCachedObjects = this.nCachedObjects_,
				indicesByUUID = this._indicesByUUID,
				bindings = this._bindings,
				nBindings = bindings.length;

			for ( var i = 0, n = arguments.length; i !== n; ++ i ) {

				var object = arguments[ i ],
					uuid = object.uuid,
					index = indicesByUUID[ uuid ];

				if ( index !== undefined ) {

					delete indicesByUUID[ uuid ];

					if ( index < nCachedObjects ) {

						// object is cached, shrink the CACHED region

						var firstActiveIndex = -- nCachedObjects,
							lastCachedObject = objects[ firstActiveIndex ],
							lastIndex = -- nObjects,
							lastObject = objects[ lastIndex ];

						// last cached object takes this object's place
						indicesByUUID[ lastCachedObject.uuid ] = index;
						objects[ index ] = lastCachedObject;

						// last object goes to the activated slot and pop
						indicesByUUID[ lastObject.uuid ] = firstActiveIndex;
						objects[ firstActiveIndex ] = lastObject;
						objects.pop();

						// accounting is done, now do the same for all bindings

						for ( var j = 0, m = nBindings; j !== m; ++ j ) {

							var bindingsForPath = bindings[ j ],
								lastCached = bindingsForPath[ firstActiveIndex ],
								last = bindingsForPath[ lastIndex ];

							bindingsForPath[ index ] = lastCached;
							bindingsForPath[ firstActiveIndex ] = last;
							bindingsForPath.pop();

						}

					} else {

						// object is active, just swap with the last and pop

						var lastIndex = -- nObjects,
							lastObject = objects[ lastIndex ];

						indicesByUUID[ lastObject.uuid ] = index;
						objects[ index ] = lastObject;
						objects.pop();

						// accounting is done, now do the same for all bindings

						for ( var j = 0, m = nBindings; j !== m; ++ j ) {

							var bindingsForPath = bindings[ j ];

							bindingsForPath[ index ] = bindingsForPath[ lastIndex ];
							bindingsForPath.pop();

						}

					} // cached or active

				} // if object is known

			} // for arguments

			this.nCachedObjects_ = nCachedObjects;

		},

		// Internal interface used by befriended PropertyBinding.Composite:

		subscribe_: function ( path, parsedPath ) {

			// returns an array of bindings for the given path that is changed
			// according to the contained objects in the group

			var indicesByPath = this._bindingsIndicesByPath,
				index = indicesByPath[ path ],
				bindings = this._bindings;

			if ( index !== undefined ) return bindings[ index ];

			var paths = this._paths,
				parsedPaths = this._parsedPaths,
				objects = this._objects,
				nObjects = objects.length,
				nCachedObjects = this.nCachedObjects_,
				bindingsForPath = new Array( nObjects );

			index = bindings.length;

			indicesByPath[ path ] = index;

			paths.push( path );
			parsedPaths.push( parsedPath );
			bindings.push( bindingsForPath );

			for ( var i = nCachedObjects, n = objects.length; i !== n; ++ i ) {

				var object = objects[ i ];
				bindingsForPath[ i ] = new PropertyBinding( object, path, parsedPath );

			}

			return bindingsForPath;

		},

		unsubscribe_: function ( path ) {

			// tells the group to forget about a property path and no longer
			// update the array previously obtained with 'subscribe_'

			var indicesByPath = this._bindingsIndicesByPath,
				index = indicesByPath[ path ];

			if ( index !== undefined ) {

				var paths = this._paths,
					parsedPaths = this._parsedPaths,
					bindings = this._bindings,
					lastBindingsIndex = bindings.length - 1,
					lastBindings = bindings[ lastBindingsIndex ],
					lastBindingsPath = path[ lastBindingsIndex ];

				indicesByPath[ lastBindingsPath ] = index;

				bindings[ index ] = lastBindings;
				bindings.pop();

				parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];
				parsedPaths.pop();

				paths[ index ] = paths[ lastBindingsIndex ];
				paths.pop();

			}

		}

	} );

	/**
	 *
	 * Action provided by AnimationMixer for scheduling clip playback on specific
	 * objects.
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 *
	 */

	function AnimationAction( mixer, clip, localRoot ) {

		this._mixer = mixer;
		this._clip = clip;
		this._localRoot = localRoot || null;

		var tracks = clip.tracks,
			nTracks = tracks.length,
			interpolants = new Array( nTracks );

		var interpolantSettings = {
				endingStart: 	ZeroCurvatureEnding,
				endingEnd:		ZeroCurvatureEnding
		};

		for ( var i = 0; i !== nTracks; ++ i ) {

			var interpolant = tracks[ i ].createInterpolant( null );
			interpolants[ i ] = interpolant;
			interpolant.settings = interpolantSettings;

		}

		this._interpolantSettings = interpolantSettings;

		this._interpolants = interpolants;	// bound by the mixer

		// inside: PropertyMixer (managed by the mixer)
		this._propertyBindings = new Array( nTracks );

		this._cacheIndex = null;			// for the memory manager
		this._byClipCacheIndex = null;		// for the memory manager

		this._timeScaleInterpolant = null;
		this._weightInterpolant = null;

		this.loop = LoopRepeat;
		this._loopCount = -1;

		// global mixer time when the action is to be started
		// it's set back to 'null' upon start of the action
		this._startTime = null;

		// scaled local time of the action
		// gets clamped or wrapped to 0..clip.duration according to loop
		this.time = 0;

		this.timeScale = 1;
		this._effectiveTimeScale = 1;

		this.weight = 1;
		this._effectiveWeight = 1;

		this.repetitions = Infinity; 		// no. of repetitions when looping

		this.paused = false;				// true -> zero effective time scale
		this.enabled = true;				// false -> zero effective weight

		this.clampWhenFinished 	= false;	// keep feeding the last frame?

		this.zeroSlopeAtStart 	= true;		// for smooth interpolation w/o separate
		this.zeroSlopeAtEnd		= true;		// clips for start, loop and end

	}

	Object.assign( AnimationAction.prototype, {

		// State & Scheduling

		play: function() {

			this._mixer._activateAction( this );

			return this;

		},

		stop: function() {

			this._mixer._deactivateAction( this );

			return this.reset();

		},

		reset: function() {

			this.paused = false;
			this.enabled = true;

			this.time = 0;			// restart clip
			this._loopCount = -1;	// forget previous loops
			this._startTime = null;	// forget scheduling

			return this.stopFading().stopWarping();

		},

		isRunning: function() {

			return this.enabled && ! this.paused && this.timeScale !== 0 &&
					this._startTime === null && this._mixer._isActiveAction( this );

		},

		// return true when play has been called
		isScheduled: function() {

			return this._mixer._isActiveAction( this );

		},

		startAt: function( time ) {

			this._startTime = time;

			return this;

		},

		setLoop: function( mode, repetitions ) {

			this.loop = mode;
			this.repetitions = repetitions;

			return this;

		},

		// Weight

		// set the weight stopping any scheduled fading
		// although .enabled = false yields an effective weight of zero, this
		// method does *not* change .enabled, because it would be confusing
		setEffectiveWeight: function( weight ) {

			this.weight = weight;

			// note: same logic as when updated at runtime
			this._effectiveWeight = this.enabled ? weight : 0;

			return this.stopFading();

		},

		// return the weight considering fading and .enabled
		getEffectiveWeight: function() {

			return this._effectiveWeight;

		},

		fadeIn: function( duration ) {

			return this._scheduleFading( duration, 0, 1 );

		},

		fadeOut: function( duration ) {

			return this._scheduleFading( duration, 1, 0 );

		},

		crossFadeFrom: function( fadeOutAction, duration, warp ) {

			fadeOutAction.fadeOut( duration );
			this.fadeIn( duration );

			if( warp ) {

				var fadeInDuration = this._clip.duration,
					fadeOutDuration = fadeOutAction._clip.duration,

					startEndRatio = fadeOutDuration / fadeInDuration,
					endStartRatio = fadeInDuration / fadeOutDuration;

				fadeOutAction.warp( 1.0, startEndRatio, duration );
				this.warp( endStartRatio, 1.0, duration );

			}

			return this;

		},

		crossFadeTo: function( fadeInAction, duration, warp ) {

			return fadeInAction.crossFadeFrom( this, duration, warp );

		},

		stopFading: function() {

			var weightInterpolant = this._weightInterpolant;

			if ( weightInterpolant !== null ) {

				this._weightInterpolant = null;
				this._mixer._takeBackControlInterpolant( weightInterpolant );

			}

			return this;

		},

		// Time Scale Control

		// set the time scale stopping any scheduled warping
		// although .paused = true yields an effective time scale of zero, this
		// method does *not* change .paused, because it would be confusing
		setEffectiveTimeScale: function( timeScale ) {

			this.timeScale = timeScale;
			this._effectiveTimeScale = this.paused ? 0 :timeScale;

			return this.stopWarping();

		},

		// return the time scale considering warping and .paused
		getEffectiveTimeScale: function() {

			return this._effectiveTimeScale;

		},

		setDuration: function( duration ) {

			this.timeScale = this._clip.duration / duration;

			return this.stopWarping();

		},

		syncWith: function( action ) {

			this.time = action.time;
			this.timeScale = action.timeScale;

			return this.stopWarping();

		},

		halt: function( duration ) {

			return this.warp( this._effectiveTimeScale, 0, duration );

		},

		warp: function( startTimeScale, endTimeScale, duration ) {

			var mixer = this._mixer, now = mixer.time,
				interpolant = this._timeScaleInterpolant,

				timeScale = this.timeScale;

			if ( interpolant === null ) {

				interpolant = mixer._lendControlInterpolant();
				this._timeScaleInterpolant = interpolant;

			}

			var times = interpolant.parameterPositions,
				values = interpolant.sampleValues;

			times[ 0 ] = now;
			times[ 1 ] = now + duration;

			values[ 0 ] = startTimeScale / timeScale;
			values[ 1 ] = endTimeScale / timeScale;

			return this;

		},

		stopWarping: function() {

			var timeScaleInterpolant = this._timeScaleInterpolant;

			if ( timeScaleInterpolant !== null ) {

				this._timeScaleInterpolant = null;
				this._mixer._takeBackControlInterpolant( timeScaleInterpolant );

			}

			return this;

		},

		// Object Accessors

		getMixer: function() {

			return this._mixer;

		},

		getClip: function() {

			return this._clip;

		},

		getRoot: function() {

			return this._localRoot || this._mixer._root;

		},

		// Interna

		_update: function( time, deltaTime, timeDirection, accuIndex ) {

			// called by the mixer

			if ( ! this.enabled ) {

				// call ._updateWeight() to update ._effectiveWeight

				this._updateWeight( time );
				return;

			}

			var startTime = this._startTime;

			if ( startTime !== null ) {

				// check for scheduled start of action

				var timeRunning = ( time - startTime ) * timeDirection;
				if ( timeRunning < 0 || timeDirection === 0 ) {

					return; // yet to come / don't decide when delta = 0

				}

				// start

				this._startTime = null; // unschedule
				deltaTime = timeDirection * timeRunning;

			}

			// apply time scale and advance time

			deltaTime *= this._updateTimeScale( time );
			var clipTime = this._updateTime( deltaTime );

			// note: _updateTime may disable the action resulting in
			// an effective weight of 0

			var weight = this._updateWeight( time );

			if ( weight > 0 ) {

				var interpolants = this._interpolants;
				var propertyMixers = this._propertyBindings;

				for ( var j = 0, m = interpolants.length; j !== m; ++ j ) {

					interpolants[ j ].evaluate( clipTime );
					propertyMixers[ j ].accumulate( accuIndex, weight );

				}

			}

		},

		_updateWeight: function( time ) {

			var weight = 0;

			if ( this.enabled ) {

				weight = this.weight;
				var interpolant = this._weightInterpolant;

				if ( interpolant !== null ) {

					var interpolantValue = interpolant.evaluate( time )[ 0 ];

					weight *= interpolantValue;

					if ( time > interpolant.parameterPositions[ 1 ] ) {

						this.stopFading();

						if ( interpolantValue === 0 ) {

							// faded out, disable
							this.enabled = false;

						}

					}

				}

			}

			this._effectiveWeight = weight;
			return weight;

		},

		_updateTimeScale: function( time ) {

			var timeScale = 0;

			if ( ! this.paused ) {

				timeScale = this.timeScale;

				var interpolant = this._timeScaleInterpolant;

				if ( interpolant !== null ) {

					var interpolantValue = interpolant.evaluate( time )[ 0 ];

					timeScale *= interpolantValue;

					if ( time > interpolant.parameterPositions[ 1 ] ) {

						this.stopWarping();

						if ( timeScale === 0 ) {

							// motion has halted, pause
							this.paused = true;

						} else {

							// warp done - apply final time scale
							this.timeScale = timeScale;

						}

					}

				}

			}

			this._effectiveTimeScale = timeScale;
			return timeScale;

		},

		_updateTime: function( deltaTime ) {

			var time = this.time + deltaTime;

			if ( deltaTime === 0 ) return time;

			var duration = this._clip.duration,

				loop = this.loop,
				loopCount = this._loopCount;

			if ( loop === LoopOnce ) {

				if ( loopCount === -1 ) {
					// just started

					this._loopCount = 0;
					this._setEndings( true, true, false );

				}

				handle_stop: {

					if ( time >= duration ) {

						time = duration;

					} else if ( time < 0 ) {

						time = 0;

					} else break handle_stop;

					if ( this.clampWhenFinished ) this.paused = true;
					else this.enabled = false;

					this._mixer.dispatchEvent( {
						type: 'finished', action: this,
						direction: deltaTime < 0 ? -1 : 1
					} );

				}

			} else { // repetitive Repeat or PingPong

				var pingPong = ( loop === LoopPingPong );

				if ( loopCount === -1 ) {
					// just started

					if ( deltaTime >= 0 ) {

						loopCount = 0;

						this._setEndings(
								true, this.repetitions === 0, pingPong );

					} else {

						// when looping in reverse direction, the initial
						// transition through zero counts as a repetition,
						// so leave loopCount at -1

						this._setEndings(
								this.repetitions === 0, true, pingPong );

					}

				}

				if ( time >= duration || time < 0 ) {
					// wrap around

					var loopDelta = Math.floor( time / duration ); // signed
					time -= duration * loopDelta;

					loopCount += Math.abs( loopDelta );

					var pending = this.repetitions - loopCount;

					if ( pending < 0 ) {
						// have to stop (switch state, clamp time, fire event)

						if ( this.clampWhenFinished ) this.paused = true;
						else this.enabled = false;

						time = deltaTime > 0 ? duration : 0;

						this._mixer.dispatchEvent( {
							type: 'finished', action: this,
							direction: deltaTime > 0 ? 1 : -1
						} );

					} else {
						// keep running

						if ( pending === 0 ) {
							// entering the last round

							var atStart = deltaTime < 0;
							this._setEndings( atStart, ! atStart, pingPong );

						} else {

							this._setEndings( false, false, pingPong );

						}

						this._loopCount = loopCount;

						this._mixer.dispatchEvent( {
							type: 'loop', action: this, loopDelta: loopDelta
						} );

					}

				}

				if ( pingPong && ( loopCount & 1 ) === 1 ) {
					// invert time for the "pong round"

					this.time = time;
					return duration - time;

				}

			}

			this.time = time;
			return time;

		},

		_setEndings: function( atStart, atEnd, pingPong ) {

			var settings = this._interpolantSettings;

			if ( pingPong ) {

				settings.endingStart 	= ZeroSlopeEnding;
				settings.endingEnd		= ZeroSlopeEnding;

			} else {

				// assuming for LoopOnce atStart == atEnd == true

				if ( atStart ) {

					settings.endingStart = this.zeroSlopeAtStart ?
							ZeroSlopeEnding : ZeroCurvatureEnding;

				} else {

					settings.endingStart = WrapAroundEnding;

				}

				if ( atEnd ) {

					settings.endingEnd = this.zeroSlopeAtEnd ?
							ZeroSlopeEnding : ZeroCurvatureEnding;

				} else {

					settings.endingEnd 	 = WrapAroundEnding;

				}

			}

		},

		_scheduleFading: function( duration, weightNow, weightThen ) {

			var mixer = this._mixer, now = mixer.time,
				interpolant = this._weightInterpolant;

			if ( interpolant === null ) {

				interpolant = mixer._lendControlInterpolant();
				this._weightInterpolant = interpolant;

			}

			var times = interpolant.parameterPositions,
				values = interpolant.sampleValues;

			times[ 0 ] = now; 				values[ 0 ] = weightNow;
			times[ 1 ] = now + duration;	values[ 1 ] = weightThen;

			return this;

		}

	} );

	/**
	 *
	 * Player for AnimationClips.
	 *
	 *
	 * @author Ben Houston / http://clara.io/
	 * @author David Sarno / http://lighthaus.us/
	 * @author tschw
	 */

	function AnimationMixer( root ) {

		this._root = root;
		this._initMemoryManager();
		this._accuIndex = 0;

		this.time = 0;

		this.timeScale = 1.0;

	}

	Object.assign( AnimationMixer.prototype, EventDispatcher.prototype, {

		_bindAction: function ( action, prototypeAction ) {

			var root = action._localRoot || this._root,
				tracks = action._clip.tracks,
				nTracks = tracks.length,
				bindings = action._propertyBindings,
				interpolants = action._interpolants,
				rootUuid = root.uuid,
				bindingsByRoot = this._bindingsByRootAndName,
				bindingsByName = bindingsByRoot[ rootUuid ];

			if ( bindingsByName === undefined ) {

				bindingsByName = {};
				bindingsByRoot[ rootUuid ] = bindingsByName;

			}

			for ( var i = 0; i !== nTracks; ++ i ) {

				var track = tracks[ i ],
					trackName = track.name,
					binding = bindingsByName[ trackName ];

				if ( binding !== undefined ) {

					bindings[ i ] = binding;

				} else {

					binding = bindings[ i ];

					if ( binding !== undefined ) {

						// existing binding, make sure the cache knows

						if ( binding._cacheIndex === null ) {

							++ binding.referenceCount;
							this._addInactiveBinding( binding, rootUuid, trackName );

						}

						continue;

					}

					var path = prototypeAction && prototypeAction.
							_propertyBindings[ i ].binding.parsedPath;

					binding = new PropertyMixer(
						PropertyBinding.create( root, trackName, path ),
						track.ValueTypeName, track.getValueSize() );

					++ binding.referenceCount;
					this._addInactiveBinding( binding, rootUuid, trackName );

					bindings[ i ] = binding;

				}

				interpolants[ i ].resultBuffer = binding.buffer;

			}

		},

		_activateAction: function ( action ) {

			if ( ! this._isActiveAction( action ) ) {

				if ( action._cacheIndex === null ) {

					// this action has been forgotten by the cache, but the user
					// appears to be still using it -> rebind

					var rootUuid = ( action._localRoot || this._root ).uuid,
						clipUuid = action._clip.uuid,
						actionsForClip = this._actionsByClip[ clipUuid ];

					this._bindAction( action,
						actionsForClip && actionsForClip.knownActions[ 0 ] );

					this._addInactiveAction( action, clipUuid, rootUuid );

				}

				var bindings = action._propertyBindings;

				// increment reference counts / sort out state
				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {

					var binding = bindings[ i ];

					if ( binding.useCount ++ === 0 ) {

						this._lendBinding( binding );
						binding.saveOriginalState();

					}

				}

				this._lendAction( action );

			}

		},

		_deactivateAction: function ( action ) {

			if ( this._isActiveAction( action ) ) {

				var bindings = action._propertyBindings;

				// decrement reference counts / sort out state
				for ( var i = 0, n = bindings.length; i !== n; ++ i ) {

					var binding = bindings[ i ];

					if ( -- binding.useCount === 0 ) {

						binding.restoreOriginalState();
						this._takeBackBinding( binding );

					}

				}

				this._takeBackAction( action );

			}

		},

		// Memory manager

		_initMemoryManager: function () {

			this._actions = []; // 'nActiveActions' followed by inactive ones
			this._nActiveActions = 0;

			this._actionsByClip = {};
			// inside:
			// {
			// 		knownActions: Array< AnimationAction >	- used as prototypes
			// 		actionByRoot: AnimationAction			- lookup
			// }


			this._bindings = []; // 'nActiveBindings' followed by inactive ones
			this._nActiveBindings = 0;

			this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >


			this._controlInterpolants = []; // same game as above
			this._nActiveControlInterpolants = 0;

			var scope = this;

			this.stats = {

				actions: {
					get total() { return scope._actions.length; },
					get inUse() { return scope._nActiveActions; }
				},
				bindings: {
					get total() { return scope._bindings.length; },
					get inUse() { return scope._nActiveBindings; }
				},
				controlInterpolants: {
					get total() { return scope._controlInterpolants.length; },
					get inUse() { return scope._nActiveControlInterpolants; }
				}

			};

		},

		// Memory management for AnimationAction objects

		_isActiveAction: function ( action ) {

			var index = action._cacheIndex;
			return index !== null && index < this._nActiveActions;

		},

		_addInactiveAction: function ( action, clipUuid, rootUuid ) {

			var actions = this._actions,
				actionsByClip = this._actionsByClip,
				actionsForClip = actionsByClip[ clipUuid ];

			if ( actionsForClip === undefined ) {

				actionsForClip = {

					knownActions: [ action ],
					actionByRoot: {}

				};

				action._byClipCacheIndex = 0;

				actionsByClip[ clipUuid ] = actionsForClip;

			} else {

				var knownActions = actionsForClip.knownActions;

				action._byClipCacheIndex = knownActions.length;
				knownActions.push( action );

			}

			action._cacheIndex = actions.length;
			actions.push( action );

			actionsForClip.actionByRoot[ rootUuid ] = action;

		},

		_removeInactiveAction: function ( action ) {

			var actions = this._actions,
				lastInactiveAction = actions[ actions.length - 1 ],
				cacheIndex = action._cacheIndex;

			lastInactiveAction._cacheIndex = cacheIndex;
			actions[ cacheIndex ] = lastInactiveAction;
			actions.pop();

			action._cacheIndex = null;


			var clipUuid = action._clip.uuid,
				actionsByClip = this._actionsByClip,
				actionsForClip = actionsByClip[ clipUuid ],
				knownActionsForClip = actionsForClip.knownActions,

				lastKnownAction =
					knownActionsForClip[ knownActionsForClip.length - 1 ],

				byClipCacheIndex = action._byClipCacheIndex;

			lastKnownAction._byClipCacheIndex = byClipCacheIndex;
			knownActionsForClip[ byClipCacheIndex ] = lastKnownAction;
			knownActionsForClip.pop();

			action._byClipCacheIndex = null;


			var actionByRoot = actionsForClip.actionByRoot,
				rootUuid = ( action._localRoot || this._root ).uuid;

			delete actionByRoot[ rootUuid ];

			if ( knownActionsForClip.length === 0 ) {

				delete actionsByClip[ clipUuid ];

			}

			this._removeInactiveBindingsForAction( action );

		},

		_removeInactiveBindingsForAction: function ( action ) {

			var bindings = action._propertyBindings;
			for ( var i = 0, n = bindings.length; i !== n; ++ i ) {

				var binding = bindings[ i ];

				if ( -- binding.referenceCount === 0 ) {

					this._removeInactiveBinding( binding );

				}

			}

		},

		_lendAction: function ( action ) {

			// [ active actions |  inactive actions  ]
			// [  active actions >| inactive actions ]
			//                 s        a
			//                  <-swap->
			//                 a        s

			var actions = this._actions,
				prevIndex = action._cacheIndex,

				lastActiveIndex = this._nActiveActions ++,

				firstInactiveAction = actions[ lastActiveIndex ];

			action._cacheIndex = lastActiveIndex;
			actions[ lastActiveIndex ] = action;

			firstInactiveAction._cacheIndex = prevIndex;
			actions[ prevIndex ] = firstInactiveAction;

		},

		_takeBackAction: function ( action ) {

			// [  active actions  | inactive actions ]
			// [ active actions |< inactive actions  ]
			//        a        s
			//         <-swap->
			//        s        a

			var actions = this._actions,
				prevIndex = action._cacheIndex,

				firstInactiveIndex = -- this._nActiveActions,

				lastActiveAction = actions[ firstInactiveIndex ];

			action._cacheIndex = firstInactiveIndex;
			actions[ firstInactiveIndex ] = action;

			lastActiveAction._cacheIndex = prevIndex;
			actions[ prevIndex ] = lastActiveAction;

		},

		// Memory management for PropertyMixer objects

		_addInactiveBinding: function ( binding, rootUuid, trackName ) {

			var bindingsByRoot = this._bindingsByRootAndName,
				bindingByName = bindingsByRoot[ rootUuid ],

				bindings = this._bindings;

			if ( bindingByName === undefined ) {

				bindingByName = {};
				bindingsByRoot[ rootUuid ] = bindingByName;

			}

			bindingByName[ trackName ] = binding;

			binding._cacheIndex = bindings.length;
			bindings.push( binding );

		},

		_removeInactiveBinding: function ( binding ) {

			var bindings = this._bindings,
				propBinding = binding.binding,
				rootUuid = propBinding.rootNode.uuid,
				trackName = propBinding.path,
				bindingsByRoot = this._bindingsByRootAndName,
				bindingByName = bindingsByRoot[ rootUuid ],

				lastInactiveBinding = bindings[ bindings.length - 1 ],
				cacheIndex = binding._cacheIndex;

			lastInactiveBinding._cacheIndex = cacheIndex;
			bindings[ cacheIndex ] = lastInactiveBinding;
			bindings.pop();

			delete bindingByName[ trackName ];

			remove_empty_map: {

				for ( var _ in bindingByName ) break remove_empty_map;

				delete bindingsByRoot[ rootUuid ];

			}

		},

		_lendBinding: function ( binding ) {

			var bindings = this._bindings,
				prevIndex = binding._cacheIndex,

				lastActiveIndex = this._nActiveBindings ++,

				firstInactiveBinding = bindings[ lastActiveIndex ];

			binding._cacheIndex = lastActiveIndex;
			bindings[ lastActiveIndex ] = binding;

			firstInactiveBinding._cacheIndex = prevIndex;
			bindings[ prevIndex ] = firstInactiveBinding;

		},

		_takeBackBinding: function ( binding ) {

			var bindings = this._bindings,
				prevIndex = binding._cacheIndex,

				firstInactiveIndex = -- this._nActiveBindings,

				lastActiveBinding = bindings[ firstInactiveIndex ];

			binding._cacheIndex = firstInactiveIndex;
			bindings[ firstInactiveIndex ] = binding;

			lastActiveBinding._cacheIndex = prevIndex;
			bindings[ prevIndex ] = lastActiveBinding;

		},


		// Memory management of Interpolants for weight and time scale

		_lendControlInterpolant: function () {

			var interpolants = this._controlInterpolants,
				lastActiveIndex = this._nActiveControlInterpolants ++,
				interpolant = interpolants[ lastActiveIndex ];

			if ( interpolant === undefined ) {

				interpolant = new LinearInterpolant(
					new Float32Array( 2 ), new Float32Array( 2 ),
					1, this._controlInterpolantsResultBuffer );

				interpolant.__cacheIndex = lastActiveIndex;
				interpolants[ lastActiveIndex ] = interpolant;

			}

			return interpolant;

		},

		_takeBackControlInterpolant: function ( interpolant ) {

			var interpolants = this._controlInterpolants,
				prevIndex = interpolant.__cacheIndex,

				firstInactiveIndex = -- this._nActiveControlInterpolants,

				lastActiveInterpolant = interpolants[ firstInactiveIndex ];

			interpolant.__cacheIndex = firstInactiveIndex;
			interpolants[ firstInactiveIndex ] = interpolant;

			lastActiveInterpolant.__cacheIndex = prevIndex;
			interpolants[ prevIndex ] = lastActiveInterpolant;

		},

		_controlInterpolantsResultBuffer: new Float32Array( 1 ),

		// return an action for a clip optionally using a custom root target
		// object (this method allocates a lot of dynamic memory in case a
		// previously unknown clip/root combination is specified)
		clipAction: function ( clip, optionalRoot ) {

			var root = optionalRoot || this._root,
				rootUuid = root.uuid,

				clipObject = typeof clip === 'string' ?
					AnimationClip.findByName( root, clip ) : clip,

				clipUuid = clipObject !== null ? clipObject.uuid : clip,

				actionsForClip = this._actionsByClip[ clipUuid ],
				prototypeAction = null;

			if ( actionsForClip !== undefined ) {

				var existingAction =
						actionsForClip.actionByRoot[ rootUuid ];

				if ( existingAction !== undefined ) {

					return existingAction;

				}

				// we know the clip, so we don't have to parse all
				// the bindings again but can just copy
				prototypeAction = actionsForClip.knownActions[ 0 ];

				// also, take the clip from the prototype action
				if ( clipObject === null )
					clipObject = prototypeAction._clip;

			}

			// clip must be known when specified via string
			if ( clipObject === null ) return null;

			// allocate all resources required to run it
			var newAction = new AnimationAction( this, clipObject, optionalRoot );

			this._bindAction( newAction, prototypeAction );

			// and make the action known to the memory manager
			this._addInactiveAction( newAction, clipUuid, rootUuid );

			return newAction;

		},

		// get an existing action
		existingAction: function ( clip, optionalRoot ) {

			var root = optionalRoot || this._root,
				rootUuid = root.uuid,

				clipObject = typeof clip === 'string' ?
					AnimationClip.findByName( root, clip ) : clip,

				clipUuid = clipObject ? clipObject.uuid : clip,

				actionsForClip = this._actionsByClip[ clipUuid ];

			if ( actionsForClip !== undefined ) {

				return actionsForClip.actionByRoot[ rootUuid ] || null;

			}

			return null;

		},

		// deactivates all previously scheduled actions
		stopAllAction: function () {

			var actions = this._actions,
				nActions = this._nActiveActions,
				bindings = this._bindings,
				nBindings = this._nActiveBindings;

			this._nActiveActions = 0;
			this._nActiveBindings = 0;

			for ( var i = 0; i !== nActions; ++ i ) {

				actions[ i ].reset();

			}

			for ( var i = 0; i !== nBindings; ++ i ) {

				bindings[ i ].useCount = 0;

			}

			return this;

		},

		// advance the time and update apply the animation
		update: function ( deltaTime ) {

			deltaTime *= this.timeScale;

			var actions = this._actions,
				nActions = this._nActiveActions,

				time = this.time += deltaTime,
				timeDirection = Math.sign( deltaTime ),

				accuIndex = this._accuIndex ^= 1;

			// run active actions

			for ( var i = 0; i !== nActions; ++ i ) {

				var action = actions[ i ];

				action._update( time, deltaTime, timeDirection, accuIndex );

			}

			// update scene graph

			var bindings = this._bindings,
				nBindings = this._nActiveBindings;

			for ( var i = 0; i !== nBindings; ++ i ) {

				bindings[ i ].apply( accuIndex );

			}

			return this;

		},

		// return this mixer's root target object
		getRoot: function () {

			return this._root;

		},

		// free all resources specific to a particular clip
		uncacheClip: function ( clip ) {

			var actions = this._actions,
				clipUuid = clip.uuid,
				actionsByClip = this._actionsByClip,
				actionsForClip = actionsByClip[ clipUuid ];

			if ( actionsForClip !== undefined ) {

				// note: just calling _removeInactiveAction would mess up the
				// iteration state and also require updating the state we can
				// just throw away

				var actionsToRemove = actionsForClip.knownActions;

				for ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {

					var action = actionsToRemove[ i ];

					this._deactivateAction( action );

					var cacheIndex = action._cacheIndex,
						lastInactiveAction = actions[ actions.length - 1 ];

					action._cacheIndex = null;
					action._byClipCacheIndex = null;

					lastInactiveAction._cacheIndex = cacheIndex;
					actions[ cacheIndex ] = lastInactiveAction;
					actions.pop();

					this._removeInactiveBindingsForAction( action );

				}

				delete actionsByClip[ clipUuid ];

			}

		},

		// free all resources specific to a particular root target object
		uncacheRoot: function ( root ) {

			var rootUuid = root.uuid,
				actionsByClip = this._actionsByClip;

			for ( var clipUuid in actionsByClip ) {

				var actionByRoot = actionsByClip[ clipUuid ].actionByRoot,
					action = actionByRoot[ rootUuid ];

				if ( action !== undefined ) {

					this._deactivateAction( action );
					this._removeInactiveAction( action );

				}

			}

			var bindingsByRoot = this._bindingsByRootAndName,
				bindingByName = bindingsByRoot[ rootUuid ];

			if ( bindingByName !== undefined ) {

				for ( var trackName in bindingByName ) {

					var binding = bindingByName[ trackName ];
					binding.restoreOriginalState();
					this._removeInactiveBinding( binding );

				}

			}

		},

		// remove a targeted clip from the cache
		uncacheAction: function ( clip, optionalRoot ) {

			var action = this.existingAction( clip, optionalRoot );

			if ( action !== null ) {

				this._deactivateAction( action );
				this._removeInactiveAction( action );

			}

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Uniform( value ) {

		if ( typeof value === 'string' ) {

			console.warn( 'THREE.Uniform: Type parameter is no longer needed.' );
			value = arguments[ 1 ];

		}

		this.value = value;

	}

	Uniform.prototype.clone = function () {

		return new Uniform( this.value.clone === undefined ? this.value : this.value.clone() );

	};

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InstancedBufferGeometry() {

		BufferGeometry.call( this );

		this.type = 'InstancedBufferGeometry';
		this.maxInstancedCount = undefined;

	}

	InstancedBufferGeometry.prototype = Object.assign( Object.create( BufferGeometry.prototype ), {

		constructor: InstancedBufferGeometry,

		isInstancedBufferGeometry: true,

		addGroup: function ( start, count, materialIndex ) {

			this.groups.push( {

				start: start,
				count: count,
				materialIndex: materialIndex

			} );

		},

		copy: function ( source ) {

			var index = source.index;

			if ( index !== null ) {

				this.setIndex( index.clone() );

			}

			var attributes = source.attributes;

			for ( var name in attributes ) {

				var attribute = attributes[ name ];
				this.addAttribute( name, attribute.clone() );

			}

			var groups = source.groups;

			for ( var i = 0, l = groups.length; i < l; i ++ ) {

				var group = groups[ i ];
				this.addGroup( group.start, group.count, group.materialIndex );

			}

			return this;

		}

	} );

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) {

		this.uuid = _Math.generateUUID();

		this.data = interleavedBuffer;
		this.itemSize = itemSize;
		this.offset = offset;

		this.normalized = normalized === true;

	}

	Object.defineProperties( InterleavedBufferAttribute.prototype, {

		count: {

			get: function () {

				return this.data.count;

			}

		},

		array: {

			get: function () {

				return this.data.array;

			}

		}

	} );

	Object.assign( InterleavedBufferAttribute.prototype, {

		isInterleavedBufferAttribute: true,

		setX: function ( index, x ) {

			this.data.array[ index * this.data.stride + this.offset ] = x;

			return this;

		},

		setY: function ( index, y ) {

			this.data.array[ index * this.data.stride + this.offset + 1 ] = y;

			return this;

		},

		setZ: function ( index, z ) {

			this.data.array[ index * this.data.stride + this.offset + 2 ] = z;

			return this;

		},

		setW: function ( index, w ) {

			this.data.array[ index * this.data.stride + this.offset + 3 ] = w;

			return this;

		},

		getX: function ( index ) {

			return this.data.array[ index * this.data.stride + this.offset ];

		},

		getY: function ( index ) {

			return this.data.array[ index * this.data.stride + this.offset + 1 ];

		},

		getZ: function ( index ) {

			return this.data.array[ index * this.data.stride + this.offset + 2 ];

		},

		getW: function ( index ) {

			return this.data.array[ index * this.data.stride + this.offset + 3 ];

		},

		setXY: function ( index, x, y ) {

			index = index * this.data.stride + this.offset;

			this.data.array[ index + 0 ] = x;
			this.data.array[ index + 1 ] = y;

			return this;

		},

		setXYZ: function ( index, x, y, z ) {

			index = index * this.data.stride + this.offset;

			this.data.array[ index + 0 ] = x;
			this.data.array[ index + 1 ] = y;
			this.data.array[ index + 2 ] = z;

			return this;

		},

		setXYZW: function ( index, x, y, z, w ) {

			index = index * this.data.stride + this.offset;

			this.data.array[ index + 0 ] = x;
			this.data.array[ index + 1 ] = y;
			this.data.array[ index + 2 ] = z;
			this.data.array[ index + 3 ] = w;

			return this;

		}

	} );

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InterleavedBuffer( array, stride ) {

		this.uuid = _Math.generateUUID();

		this.array = array;
		this.stride = stride;
		this.count = array !== undefined ? array.length / stride : 0;

		this.dynamic = false;
		this.updateRange = { offset: 0, count: - 1 };

		this.onUploadCallback = function () {};

		this.version = 0;

	}

	Object.defineProperty( InterleavedBuffer.prototype, 'needsUpdate', {

		set: function ( value ) {

			if ( value === true ) this.version ++;

		}

	} );

	Object.assign( InterleavedBuffer.prototype, {

		isInterleavedBuffer: true,

		setArray: function ( array ) {

			if ( Array.isArray( array ) ) {

				throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );

			}

			this.count = array !== undefined ? array.length / this.stride : 0;
			this.array = array;

		},

		setDynamic: function ( value ) {

			this.dynamic = value;

			return this;

		},

		copy: function ( source ) {

			this.array = new source.array.constructor( source.array );
			this.count = source.count;
			this.stride = source.stride;
			this.dynamic = source.dynamic;

			return this;

		},

		copyAt: function ( index1, attribute, index2 ) {

			index1 *= this.stride;
			index2 *= attribute.stride;

			for ( var i = 0, l = this.stride; i < l; i ++ ) {

				this.array[ index1 + i ] = attribute.array[ index2 + i ];

			}

			return this;

		},

		set: function ( value, offset ) {

			if ( offset === undefined ) offset = 0;

			this.array.set( value, offset );

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		onUpload: function ( callback ) {

			this.onUploadCallback = callback;

			return this;

		}

	} );

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InstancedInterleavedBuffer( array, stride, meshPerAttribute ) {

		InterleavedBuffer.call( this, array, stride );

		this.meshPerAttribute = meshPerAttribute || 1;

	}

	InstancedInterleavedBuffer.prototype = Object.assign( Object.create( InterleavedBuffer.prototype ), {

		constructor: InstancedInterleavedBuffer,

		isInstancedInterleavedBuffer: true,

		copy: function ( source ) {

			InterleavedBuffer.prototype.copy.call( this, source );

			this.meshPerAttribute = source.meshPerAttribute;

			return this;

		}

	} );

	/**
	 * @author benaadams / https://twitter.com/ben_a_adams
	 */

	function InstancedBufferAttribute( array, itemSize, meshPerAttribute ) {

		BufferAttribute.call( this, array, itemSize );

		this.meshPerAttribute = meshPerAttribute || 1;

	}

	InstancedBufferAttribute.prototype = Object.assign( Object.create( BufferAttribute.prototype ), {

		constructor: InstancedBufferAttribute,

		isInstancedBufferAttribute: true,

		copy: function ( source ) {

			BufferAttribute.prototype.copy.call( this, source );

			this.meshPerAttribute = source.meshPerAttribute;

			return this;

		}

	} );

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author bhouston / http://clara.io/
	 * @author stephomi / http://stephaneginier.com/
	 */

	function Raycaster( origin, direction, near, far ) {

		this.ray = new Ray( origin, direction );
		// direction is assumed to be normalized (for accurate distance calculations)

		this.near = near || 0;
		this.far = far || Infinity;

		this.params = {
			Mesh: {},
			Line: {},
			LOD: {},
			Points: { threshold: 1 },
			Sprite: {}
		};

		Object.defineProperties( this.params, {
			PointCloud: {
				get: function () {
					console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );
					return this.Points;
				}
			}
		} );

	}

	function ascSort( a, b ) {

		return a.distance - b.distance;

	}

	function intersectObject( object, raycaster, intersects, recursive ) {

		if ( object.visible === false ) return;

		object.raycast( raycaster, intersects );

		if ( recursive === true ) {

			var children = object.children;

			for ( var i = 0, l = children.length; i < l; i ++ ) {

				intersectObject( children[ i ], raycaster, intersects, true );

			}

		}

	}

	Object.assign( Raycaster.prototype, {

		linePrecision: 1,

		set: function ( origin, direction ) {

			// direction is assumed to be normalized (for accurate distance calculations)

			this.ray.set( origin, direction );

		},

		setFromCamera: function ( coords, camera ) {

			if ( ( camera && camera.isPerspectiveCamera ) ) {

				this.ray.origin.setFromMatrixPosition( camera.matrixWorld );
				this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();

			} else if ( ( camera && camera.isOrthographicCamera ) ) {

				this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera
				this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );

			} else {

				console.error( 'THREE.Raycaster: Unsupported camera type.' );

			}

		},

		intersectObject: function ( object, recursive ) {

			var intersects = [];

			intersectObject( object, this, intersects, recursive );

			intersects.sort( ascSort );

			return intersects;

		},

		intersectObjects: function ( objects, recursive ) {

			var intersects = [];

			if ( Array.isArray( objects ) === false ) {

				console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );
				return intersects;

			}

			for ( var i = 0, l = objects.length; i < l; i ++ ) {

				intersectObject( objects[ i ], this, intersects, recursive );

			}

			intersects.sort( ascSort );

			return intersects;

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function Clock( autoStart ) {

		this.autoStart = ( autoStart !== undefined ) ? autoStart : true;

		this.startTime = 0;
		this.oldTime = 0;
		this.elapsedTime = 0;

		this.running = false;

	}

	Object.assign( Clock.prototype, {

		start: function () {

			this.startTime = ( typeof performance === 'undefined' ? Date : performance ).now(); // see #10732

			this.oldTime = this.startTime;
			this.elapsedTime = 0;
			this.running = true;

		},

		stop: function () {

			this.getElapsedTime();
			this.running = false;
			this.autoStart = false;

		},

		getElapsedTime: function () {

			this.getDelta();
			return this.elapsedTime;

		},

		getDelta: function () {

			var diff = 0;

			if ( this.autoStart && ! this.running ) {

				this.start();
				return 0;

			}

			if ( this.running ) {

				var newTime = ( typeof performance === 'undefined' ? Date : performance ).now();

				diff = ( newTime - this.oldTime ) / 1000;
				this.oldTime = newTime;

				this.elapsedTime += diff;

			}

			return diff;

		}

	} );

	/**
	 * @author bhouston / http://clara.io
	 * @author WestLangley / http://github.com/WestLangley
	 *
	 * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system
	 *
	 * The poles (phi) are at the positive and negative y axis.
	 * The equator starts at positive z.
	 */

	function Spherical( radius, phi, theta ) {

		this.radius = ( radius !== undefined ) ? radius : 1.0;
		this.phi = ( phi !== undefined ) ? phi : 0; // up / down towards top and bottom pole
		this.theta = ( theta !== undefined ) ? theta : 0; // around the equator of the sphere

		return this;

	}

	Object.assign( Spherical.prototype, {

		set: function ( radius, phi, theta ) {

			this.radius = radius;
			this.phi = phi;
			this.theta = theta;

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( other ) {

			this.radius = other.radius;
			this.phi = other.phi;
			this.theta = other.theta;

			return this;

		},

		// restrict phi to be betwee EPS and PI-EPS
		makeSafe: function() {

			var EPS = 0.000001;
			this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );

			return this;

		},

		setFromVector3: function( vec3 ) {

			this.radius = vec3.length();

			if ( this.radius === 0 ) {

				this.theta = 0;
				this.phi = 0;

			} else {

				this.theta = Math.atan2( vec3.x, vec3.z ); // equator angle around y-up axis
				this.phi = Math.acos( _Math.clamp( vec3.y / this.radius, - 1, 1 ) ); // polar angle

			}

			return this;

		}

	} );

	/**
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 * Ref: https://en.wikipedia.org/wiki/Cylindrical_coordinate_system
	 *
	 */

	function Cylindrical( radius, theta, y ) {

		this.radius = ( radius !== undefined ) ? radius : 1.0; // distance from the origin to a point in the x-z plane
		this.theta = ( theta !== undefined ) ? theta : 0; // counterclockwise angle in the x-z plane measured in radians from the positive z-axis
		this.y = ( y !== undefined ) ? y : 0; // height above the x-z plane

		return this;

	}

	Object.assign( Cylindrical.prototype, {

		set: function ( radius, theta, y ) {

			this.radius = radius;
			this.theta = theta;
			this.y = y;

			return this;

		},

		clone: function () {

			return new this.constructor().copy( this );

		},

		copy: function ( other ) {

			this.radius = other.radius;
			this.theta = other.theta;
			this.y = other.y;

			return this;

		},

		setFromVector3: function( vec3 ) {

			this.radius = Math.sqrt( vec3.x * vec3.x + vec3.z * vec3.z );
			this.theta = Math.atan2( vec3.x, vec3.z );
			this.y = vec3.y;

			return this;

		}

	} );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function MorphBlendMesh( geometry, material ) {

		Mesh.call( this, geometry, material );

		this.animationsMap = {};
		this.animationsList = [];

		// prepare default animation
		// (all frames played together in 1 second)

		var numFrames = this.geometry.morphTargets.length;

		var name = "__default";

		var startFrame = 0;
		var endFrame = numFrames - 1;

		var fps = numFrames / 1;

		this.createAnimation( name, startFrame, endFrame, fps );
		this.setAnimationWeight( name, 1 );

	}

	MorphBlendMesh.prototype = Object.create( Mesh.prototype );
	MorphBlendMesh.prototype.constructor = MorphBlendMesh;

	MorphBlendMesh.prototype.createAnimation = function ( name, start, end, fps ) {

		var animation = {

			start: start,
			end: end,

			length: end - start + 1,

			fps: fps,
			duration: ( end - start ) / fps,

			lastFrame: 0,
			currentFrame: 0,

			active: false,

			time: 0,
			direction: 1,
			weight: 1,

			directionBackwards: false,
			mirroredLoop: false

		};

		this.animationsMap[ name ] = animation;
		this.animationsList.push( animation );

	};

	MorphBlendMesh.prototype.autoCreateAnimations = function ( fps ) {

		var pattern = /([a-z]+)_?(\d+)/i;

		var firstAnimation, frameRanges = {};

		var geometry = this.geometry;

		for ( var i = 0, il = geometry.morphTargets.length; i < il; i ++ ) {

			var morph = geometry.morphTargets[ i ];
			var chunks = morph.name.match( pattern );

			if ( chunks && chunks.length > 1 ) {

				var name = chunks[ 1 ];

				if ( ! frameRanges[ name ] ) frameRanges[ name ] = { start: Infinity, end: - Infinity };

				var range = frameRanges[ name ];

				if ( i < range.start ) range.start = i;
				if ( i > range.end ) range.end = i;

				if ( ! firstAnimation ) firstAnimation = name;

			}

		}

		for ( var name in frameRanges ) {

			var range = frameRanges[ name ];
			this.createAnimation( name, range.start, range.end, fps );

		}

		this.firstAnimation = firstAnimation;

	};

	MorphBlendMesh.prototype.setAnimationDirectionForward = function ( name ) {

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			animation.direction = 1;
			animation.directionBackwards = false;

		}

	};

	MorphBlendMesh.prototype.setAnimationDirectionBackward = function ( name ) {

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			animation.direction = - 1;
			animation.directionBackwards = true;

		}

	};

	MorphBlendMesh.prototype.setAnimationFPS = function ( name, fps ) {

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			animation.fps = fps;
			animation.duration = ( animation.end - animation.start ) / animation.fps;

		}

	};

	MorphBlendMesh.prototype.setAnimationDuration = function ( name, duration ) {

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			animation.duration = duration;
			animation.fps = ( animation.end - animation.start ) / animation.duration;

		}

	};

	MorphBlendMesh.prototype.setAnimationWeight = function ( name, weight ) {

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			animation.weight = weight;

		}

	};

	MorphBlendMesh.prototype.setAnimationTime = function ( name, time ) {

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			animation.time = time;

		}

	};

	MorphBlendMesh.prototype.getAnimationTime = function ( name ) {

		var time = 0;

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			time = animation.time;

		}

		return time;

	};

	MorphBlendMesh.prototype.getAnimationDuration = function ( name ) {

		var duration = - 1;

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			duration = animation.duration;

		}

		return duration;

	};

	MorphBlendMesh.prototype.playAnimation = function ( name ) {

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			animation.time = 0;
			animation.active = true;

		} else {

			console.warn( "THREE.MorphBlendMesh: animation[" + name + "] undefined in .playAnimation()" );

		}

	};

	MorphBlendMesh.prototype.stopAnimation = function ( name ) {

		var animation = this.animationsMap[ name ];

		if ( animation ) {

			animation.active = false;

		}

	};

	MorphBlendMesh.prototype.update = function ( delta ) {

		for ( var i = 0, il = this.animationsList.length; i < il; i ++ ) {

			var animation = this.animationsList[ i ];

			if ( ! animation.active ) continue;

			var frameTime = animation.duration / animation.length;

			animation.time += animation.direction * delta;

			if ( animation.mirroredLoop ) {

				if ( animation.time > animation.duration || animation.time < 0 ) {

					animation.direction *= - 1;

					if ( animation.time > animation.duration ) {

						animation.time = animation.duration;
						animation.directionBackwards = true;

					}

					if ( animation.time < 0 ) {

						animation.time = 0;
						animation.directionBackwards = false;

					}

				}

			} else {

				animation.time = animation.time % animation.duration;

				if ( animation.time < 0 ) animation.time += animation.duration;

			}

			var keyframe = animation.start + _Math.clamp( Math.floor( animation.time / frameTime ), 0, animation.length - 1 );
			var weight = animation.weight;

			if ( keyframe !== animation.currentFrame ) {

				this.morphTargetInfluences[ animation.lastFrame ] = 0;
				this.morphTargetInfluences[ animation.currentFrame ] = 1 * weight;

				this.morphTargetInfluences[ keyframe ] = 0;

				animation.lastFrame = animation.currentFrame;
				animation.currentFrame = keyframe;

			}

			var mix = ( animation.time % frameTime ) / frameTime;

			if ( animation.directionBackwards ) mix = 1 - mix;

			if ( animation.currentFrame !== animation.lastFrame ) {

				this.morphTargetInfluences[ animation.currentFrame ] = mix * weight;
				this.morphTargetInfluences[ animation.lastFrame ] = ( 1 - mix ) * weight;

			} else {

				this.morphTargetInfluences[ animation.currentFrame ] = weight;

			}

		}

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	function ImmediateRenderObject( material ) {

		Object3D.call( this );

		this.material = material;
		this.render = function ( renderCallback ) {};

	}

	ImmediateRenderObject.prototype = Object.create( Object3D.prototype );
	ImmediateRenderObject.prototype.constructor = ImmediateRenderObject;

	ImmediateRenderObject.prototype.isImmediateRenderObject = true;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	*/

	function VertexNormalsHelper( object, size, hex, linewidth ) {

		this.object = object;

		this.size = ( size !== undefined ) ? size : 1;

		var color = ( hex !== undefined ) ? hex : 0xff0000;

		var width = ( linewidth !== undefined ) ? linewidth : 1;

		//

		var nNormals = 0;

		var objGeometry = this.object.geometry;

		if ( objGeometry && objGeometry.isGeometry ) {

			nNormals = objGeometry.faces.length * 3;

		} else if ( objGeometry && objGeometry.isBufferGeometry ) {

			nNormals = objGeometry.attributes.normal.count;

		}

		//

		var geometry = new BufferGeometry();

		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );

		geometry.addAttribute( 'position', positions );

		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );

		//

		this.matrixAutoUpdate = false;

		this.update();

	}

	VertexNormalsHelper.prototype = Object.create( LineSegments.prototype );
	VertexNormalsHelper.prototype.constructor = VertexNormalsHelper;

	VertexNormalsHelper.prototype.update = ( function () {

		var v1 = new Vector3();
		var v2 = new Vector3();
		var normalMatrix = new Matrix3();

		return function update() {

			var keys = [ 'a', 'b', 'c' ];

			this.object.updateMatrixWorld( true );

			normalMatrix.getNormalMatrix( this.object.matrixWorld );

			var matrixWorld = this.object.matrixWorld;

			var position = this.geometry.attributes.position;

			//

			var objGeometry = this.object.geometry;

			if ( objGeometry && objGeometry.isGeometry ) {

				var vertices = objGeometry.vertices;

				var faces = objGeometry.faces;

				var idx = 0;

				for ( var i = 0, l = faces.length; i < l; i ++ ) {

					var face = faces[ i ];

					for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {

						var vertex = vertices[ face[ keys[ j ] ] ];

						var normal = face.vertexNormals[ j ];

						v1.copy( vertex ).applyMatrix4( matrixWorld );

						v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );

						position.setXYZ( idx, v1.x, v1.y, v1.z );

						idx = idx + 1;

						position.setXYZ( idx, v2.x, v2.y, v2.z );

						idx = idx + 1;

					}

				}

			} else if ( objGeometry && objGeometry.isBufferGeometry ) {

				var objPos = objGeometry.attributes.position;

				var objNorm = objGeometry.attributes.normal;

				var idx = 0;

				// for simplicity, ignore index and drawcalls, and render every normal

				for ( var j = 0, jl = objPos.count; j < jl; j ++ ) {

					v1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );

					v2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );

					v2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );

					position.setXYZ( idx, v1.x, v1.y, v1.z );

					idx = idx + 1;

					position.setXYZ( idx, v2.x, v2.y, v2.z );

					idx = idx + 1;

				}

			}

			position.needsUpdate = true;

		};

	}() );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	*/

	function SpotLightHelper( light ) {

		Object3D.call( this );

		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		var geometry = new BufferGeometry();

		var positions = [
			0, 0, 0,   0,   0,   1,
			0, 0, 0,   1,   0,   1,
			0, 0, 0, - 1,   0,   1,
			0, 0, 0,   0,   1,   1,
			0, 0, 0,   0, - 1,   1
		];

		for ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {

			var p1 = ( i / l ) * Math.PI * 2;
			var p2 = ( j / l ) * Math.PI * 2;

			positions.push(
				Math.cos( p1 ), Math.sin( p1 ), 1,
				Math.cos( p2 ), Math.sin( p2 ), 1
			);

		}

		geometry.addAttribute( 'position', new Float32BufferAttribute( positions, 3 ) );

		var material = new LineBasicMaterial( { fog: false } );

		this.cone = new LineSegments( geometry, material );
		this.add( this.cone );

		this.update();

	}

	SpotLightHelper.prototype = Object.create( Object3D.prototype );
	SpotLightHelper.prototype.constructor = SpotLightHelper;

	SpotLightHelper.prototype.dispose = function () {

		this.cone.geometry.dispose();
		this.cone.material.dispose();

	};

	SpotLightHelper.prototype.update = function () {

		var vector = new Vector3();
		var vector2 = new Vector3();

		return function update() {

			this.light.updateMatrixWorld();

			var coneLength = this.light.distance ? this.light.distance : 1000;
			var coneWidth = coneLength * Math.tan( this.light.angle );

			this.cone.scale.set( coneWidth, coneWidth, coneLength );

			vector.setFromMatrixPosition( this.light.matrixWorld );
			vector2.setFromMatrixPosition( this.light.target.matrixWorld );

			this.cone.lookAt( vector2.sub( vector ) );

			this.cone.material.color.copy( this.light.color );

		};

	}();

	/**
	 * @author Sean Griffin / http://twitter.com/sgrif
	 * @author Michael Guerrero / http://realitymeltdown.com
	 * @author mrdoob / http://mrdoob.com/
	 * @author ikerr / http://verold.com
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function getBoneList( object ) {

		var boneList = [];

		if ( object && object.isBone ) {

			boneList.push( object );

		}

		for ( var i = 0; i < object.children.length; i ++ ) {

			boneList.push.apply( boneList, getBoneList( object.children[ i ] ) );

		}

		return boneList;

	}

	function SkeletonHelper( object ) {

		var bones = getBoneList( object );

		var geometry = new BufferGeometry();

		var vertices = [];
		var colors = [];

		var color1 = new Color( 0, 0, 1 );
		var color2 = new Color( 0, 1, 0 );

		for ( var i = 0; i < bones.length; i ++ ) {

			var bone = bones[ i ];

			if ( bone.parent && bone.parent.isBone ) {

				vertices.push( 0, 0, 0 );
				vertices.push( 0, 0, 0 );
				colors.push( color1.r, color1.g, color1.b );
				colors.push( color2.r, color2.g, color2.b );

			}

		}

		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		var material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } );

		LineSegments.call( this, geometry, material );

		this.root = object;
		this.bones = bones;

		this.matrix = object.matrixWorld;
		this.matrixAutoUpdate = false;

		this.onBeforeRender();

	}

	SkeletonHelper.prototype = Object.create( LineSegments.prototype );
	SkeletonHelper.prototype.constructor = SkeletonHelper;

	SkeletonHelper.prototype.onBeforeRender = function () {

		var vector = new Vector3();

		var boneMatrix = new Matrix4();
		var matrixWorldInv = new Matrix4();

		return function onBeforeRender() {

			var bones = this.bones;

			var geometry = this.geometry;
			var position = geometry.getAttribute( 'position' );

			matrixWorldInv.getInverse( this.root.matrixWorld );

			for ( var i = 0, j = 0; i < bones.length; i ++ ) {

				var bone = bones[ i ];

				if ( bone.parent && bone.parent.isBone ) {

					boneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );
					vector.setFromMatrixPosition( boneMatrix );
					position.setXYZ( j, vector.x, vector.y, vector.z );

					boneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );
					vector.setFromMatrixPosition( boneMatrix );
					position.setXYZ( j + 1, vector.x, vector.y, vector.z );

					j += 2;

				}

			}

			geometry.getAttribute( 'position' ).needsUpdate = true;

		};

	}();

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 */

	function PointLightHelper( light, sphereSize ) {

		this.light = light;
		this.light.updateMatrixWorld();

		var geometry = new SphereBufferGeometry( sphereSize, 4, 2 );
		var material = new MeshBasicMaterial( { wireframe: true, fog: false } );
		material.color.copy( this.light.color );

		Mesh.call( this, geometry, material );

		this.matrix = this.light.matrixWorld;
		this.matrixAutoUpdate = false;

		/*
		var distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 );
		var distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );

		this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );
		this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );

		var d = light.distance;

		if ( d === 0.0 ) {

			this.lightDistance.visible = false;

		} else {

			this.lightDistance.scale.set( d, d, d );

		}

		this.add( this.lightDistance );
		*/

	}

	PointLightHelper.prototype = Object.create( Mesh.prototype );
	PointLightHelper.prototype.constructor = PointLightHelper;

	PointLightHelper.prototype.dispose = function () {

		this.geometry.dispose();
		this.material.dispose();

	};

	PointLightHelper.prototype.update = function () {

		this.material.color.copy( this.light.color );

		/*
		var d = this.light.distance;

		if ( d === 0.0 ) {

			this.lightDistance.visible = false;

		} else {

			this.lightDistance.visible = true;
			this.lightDistance.scale.set( d, d, d );

		}
		*/

	};

	/**
	 * @author abelnation / http://github.com/abelnation
	 * @author Mugen87 / http://github.com/Mugen87
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function RectAreaLightHelper( light ) {

		Object3D.call( this );

		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		var material = new LineBasicMaterial( { color: light.color } );

		var geometry = new BufferGeometry();

		geometry.addAttribute( 'position', new BufferAttribute( new Float32Array( 5 * 3 ), 3 ) );

		this.add( new Line( geometry, material ) );

		this.update();

	}

	RectAreaLightHelper.prototype = Object.create( Object3D.prototype );
	RectAreaLightHelper.prototype.constructor = RectAreaLightHelper;

	RectAreaLightHelper.prototype.dispose = function () {

		this.children[ 0 ].geometry.dispose();
		this.children[ 0 ].material.dispose();

	};

	RectAreaLightHelper.prototype.update = function () {

		var line = this.children[ 0 ];

		// update material

		line.material.color.copy( this.light.color );

		// calculate new dimensions of the helper

		var hx = this.light.width * 0.5;
		var hy = this.light.height * 0.5;

		var position = line.geometry.attributes.position;
		var array = position.array;

		// update vertices

		array[  0 ] =   hx; array[  1 ] = - hy; array[  2 ] = 0;
		array[  3 ] =   hx; array[  4 ] =   hy; array[  5 ] = 0;
		array[  6 ] = - hx; array[  7 ] =   hy; array[  8 ] = 0;
		array[  9 ] = - hx; array[ 10 ] = - hy; array[ 11 ] = 0;
		array[ 12 ] =   hx; array[ 13 ] = - hy; array[ 14 ] = 0;

		position.needsUpdate = true;

	};

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 */

	function HemisphereLightHelper( light, size ) {

		Object3D.call( this );

		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		var geometry = new OctahedronBufferGeometry( size );
		geometry.rotateY( Math.PI * 0.5 );

		var material = new MeshBasicMaterial( { vertexColors: VertexColors, wireframe: true } );

		var position = geometry.getAttribute( 'position' );
		var colors = new Float32Array( position.count * 3 );

		geometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) );

		this.add( new Mesh( geometry, material ) );

		this.update();

	}

	HemisphereLightHelper.prototype = Object.create( Object3D.prototype );
	HemisphereLightHelper.prototype.constructor = HemisphereLightHelper;

	HemisphereLightHelper.prototype.dispose = function () {

		this.children[ 0 ].geometry.dispose();
		this.children[ 0 ].material.dispose();

	};

	HemisphereLightHelper.prototype.update = function () {

		var vector = new Vector3();

		var color1 = new Color();
		var color2 = new Color();

		return function update() {

			var mesh = this.children[ 0 ];

			var colors = mesh.geometry.getAttribute( 'color' );

			color1.copy( this.light.color );
			color2.copy( this.light.groundColor );

			for ( var i = 0, l = colors.count; i < l; i ++ ) {

				var color = ( i < ( l / 2 ) ) ? color1 : color2;

				colors.setXYZ( i, color.r, color.g, color.b );

			}

			mesh.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );

			colors.needsUpdate = true;

		};

	}();

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function GridHelper( size, divisions, color1, color2 ) {

		size = size || 10;
		divisions = divisions || 10;
		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );

		var center = divisions / 2;
		var step = size / divisions;
		var halfSize = size / 2;

		var vertices = [], colors = [];

		for ( var i = 0, j = 0, k = - halfSize; i <= divisions; i ++, k += step ) {

			vertices.push( - halfSize, 0, k, halfSize, 0, k );
			vertices.push( k, 0, - halfSize, k, 0, halfSize );

			var color = i === center ? color1 : color2;

			color.toArray( colors, j ); j += 3;
			color.toArray( colors, j ); j += 3;
			color.toArray( colors, j ); j += 3;
			color.toArray( colors, j ); j += 3;

		}

		var geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		var material = new LineBasicMaterial( { vertexColors: VertexColors } );

		LineSegments.call( this, geometry, material );

	}

	GridHelper.prototype = Object.create( LineSegments.prototype );
	GridHelper.prototype.constructor = GridHelper;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / http://github.com/Mugen87
	 * @author Hectate / http://www.github.com/Hectate
	 */

	function PolarGridHelper( radius, radials, circles, divisions, color1, color2 ) {

		radius = radius || 10;
		radials = radials || 16;
		circles = circles || 8;
		divisions = divisions || 64;
		color1 = new Color( color1 !== undefined ? color1 : 0x444444 );
		color2 = new Color( color2 !== undefined ? color2 : 0x888888 );

		var vertices = [];
		var colors = [];

		var x, z;
		var v, i, j, r, color;

		// create the radials

		for ( i = 0; i <= radials; i ++ ) {

			v = ( i / radials ) * ( Math.PI * 2 );

			x = Math.sin( v ) * radius;
			z = Math.cos( v ) * radius;

			vertices.push( 0, 0, 0 );
			vertices.push( x, 0, z );

			color = ( i & 1 ) ? color1 : color2;

			colors.push( color.r, color.g, color.b );
			colors.push( color.r, color.g, color.b );

		}

		// create the circles

		for ( i = 0; i <= circles; i ++ ) {

			color = ( i & 1 ) ? color1 : color2;

			r = radius - ( radius / circles * i );

			for ( j = 0; j < divisions; j ++ ) {

				// first vertex

				v = ( j / divisions ) * ( Math.PI * 2 );

				x = Math.sin( v ) * r;
				z = Math.cos( v ) * r;

				vertices.push( x, 0, z );
				colors.push( color.r, color.g, color.b );

				// second vertex

				v = ( ( j + 1 ) / divisions ) * ( Math.PI * 2 );

				x = Math.sin( v ) * r;
				z = Math.cos( v ) * r;

				vertices.push( x, 0, z );
				colors.push( color.r, color.g, color.b );

			}

		}

		var geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		var material = new LineBasicMaterial( { vertexColors: VertexColors } );

		LineSegments.call( this, geometry, material );

	}

	PolarGridHelper.prototype = Object.create( LineSegments.prototype );
	PolarGridHelper.prototype.constructor = PolarGridHelper;

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	*/

	function FaceNormalsHelper( object, size, hex, linewidth ) {

		// FaceNormalsHelper only supports THREE.Geometry

		this.object = object;

		this.size = ( size !== undefined ) ? size : 1;

		var color = ( hex !== undefined ) ? hex : 0xffff00;

		var width = ( linewidth !== undefined ) ? linewidth : 1;

		//

		var nNormals = 0;

		var objGeometry = this.object.geometry;

		if ( objGeometry && objGeometry.isGeometry ) {

			nNormals = objGeometry.faces.length;

		} else {

			console.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );

		}

		//

		var geometry = new BufferGeometry();

		var positions = new Float32BufferAttribute( nNormals * 2 * 3, 3 );

		geometry.addAttribute( 'position', positions );

		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );

		//

		this.matrixAutoUpdate = false;
		this.update();

	}

	FaceNormalsHelper.prototype = Object.create( LineSegments.prototype );
	FaceNormalsHelper.prototype.constructor = FaceNormalsHelper;

	FaceNormalsHelper.prototype.update = ( function () {

		var v1 = new Vector3();
		var v2 = new Vector3();
		var normalMatrix = new Matrix3();

		return function update() {

			this.object.updateMatrixWorld( true );

			normalMatrix.getNormalMatrix( this.object.matrixWorld );

			var matrixWorld = this.object.matrixWorld;

			var position = this.geometry.attributes.position;

			//

			var objGeometry = this.object.geometry;

			var vertices = objGeometry.vertices;

			var faces = objGeometry.faces;

			var idx = 0;

			for ( var i = 0, l = faces.length; i < l; i ++ ) {

				var face = faces[ i ];

				var normal = face.normal;

				v1.copy( vertices[ face.a ] )
					.add( vertices[ face.b ] )
					.add( vertices[ face.c ] )
					.divideScalar( 3 )
					.applyMatrix4( matrixWorld );

				v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );

				position.setXYZ( idx, v1.x, v1.y, v1.z );

				idx = idx + 1;

				position.setXYZ( idx, v2.x, v2.y, v2.z );

				idx = idx + 1;

			}

			position.needsUpdate = true;

		};

	}() );

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author mrdoob / http://mrdoob.com/
	 * @author WestLangley / http://github.com/WestLangley
	 */

	function DirectionalLightHelper( light, size ) {

		Object3D.call( this );

		this.light = light;
		this.light.updateMatrixWorld();

		this.matrix = light.matrixWorld;
		this.matrixAutoUpdate = false;

		if ( size === undefined ) size = 1;

		var geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( [
			- size,   size, 0,
			  size,   size, 0,
			  size, - size, 0,
			- size, - size, 0,
			- size,   size, 0
		], 3 ) );

		var material = new LineBasicMaterial( { fog: false } );

		this.add( new Line( geometry, material ) );

		geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );

		this.add( new Line( geometry, material ));

		this.update();

	}

	DirectionalLightHelper.prototype = Object.create( Object3D.prototype );
	DirectionalLightHelper.prototype.constructor = DirectionalLightHelper;

	DirectionalLightHelper.prototype.dispose = function () {

		var lightPlane = this.children[ 0 ];
		var targetLine = this.children[ 1 ];

		lightPlane.geometry.dispose();
		lightPlane.material.dispose();
		targetLine.geometry.dispose();
		targetLine.material.dispose();

	};

	DirectionalLightHelper.prototype.update = function () {

		var v1 = new Vector3();
		var v2 = new Vector3();
		var v3 = new Vector3();

		return function update() {

			v1.setFromMatrixPosition( this.light.matrixWorld );
			v2.setFromMatrixPosition( this.light.target.matrixWorld );
			v3.subVectors( v2, v1 );

			var lightPlane = this.children[ 0 ];
			var targetLine = this.children[ 1 ];

			lightPlane.lookAt( v3 );
			lightPlane.material.color.copy( this.light.color );

			targetLine.lookAt( v3 );
			targetLine.scale.z = v3.length();

		};

	}();

	/**
	 * @author alteredq / http://alteredqualia.com/
	 * @author Mugen87 / https://github.com/Mugen87
	 *
	 *	- shows frustum, line of sight and up of the camera
	 *	- suitable for fast updates
	 * 	- based on frustum visualization in lightgl.js shadowmap example
	 *		http://evanw.github.com/lightgl.js/tests/shadowmap.html
	 */

	function CameraHelper( camera ) {

		var geometry = new BufferGeometry();
		var material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } );

		var vertices = [];
		var colors = [];

		var pointMap = {};

		// colors

		var colorFrustum = new Color( 0xffaa00 );
		var colorCone = new Color( 0xff0000 );
		var colorUp = new Color( 0x00aaff );
		var colorTarget = new Color( 0xffffff );
		var colorCross = new Color( 0x333333 );

		// near

		addLine( "n1", "n2", colorFrustum );
		addLine( "n2", "n4", colorFrustum );
		addLine( "n4", "n3", colorFrustum );
		addLine( "n3", "n1", colorFrustum );

		// far

		addLine( "f1", "f2", colorFrustum );
		addLine( "f2", "f4", colorFrustum );
		addLine( "f4", "f3", colorFrustum );
		addLine( "f3", "f1", colorFrustum );

		// sides

		addLine( "n1", "f1", colorFrustum );
		addLine( "n2", "f2", colorFrustum );
		addLine( "n3", "f3", colorFrustum );
		addLine( "n4", "f4", colorFrustum );

		// cone

		addLine( "p", "n1", colorCone );
		addLine( "p", "n2", colorCone );
		addLine( "p", "n3", colorCone );
		addLine( "p", "n4", colorCone );

		// up

		addLine( "u1", "u2", colorUp );
		addLine( "u2", "u3", colorUp );
		addLine( "u3", "u1", colorUp );

		// target

		addLine( "c", "t", colorTarget );
		addLine( "p", "c", colorCross );

		// cross

		addLine( "cn1", "cn2", colorCross );
		addLine( "cn3", "cn4", colorCross );

		addLine( "cf1", "cf2", colorCross );
		addLine( "cf3", "cf4", colorCross );

		function addLine( a, b, color ) {

			addPoint( a, color );
			addPoint( b, color );

		}

		function addPoint( id, color ) {

			vertices.push( 0, 0, 0 );
			colors.push( color.r, color.g, color.b );

			if ( pointMap[ id ] === undefined ) {

				pointMap[ id ] = [];

			}

			pointMap[ id ].push( ( vertices.length / 3 ) - 1 );

		}

		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		LineSegments.call( this, geometry, material );

		this.camera = camera;
		if ( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();

		this.matrix = camera.matrixWorld;
		this.matrixAutoUpdate = false;

		this.pointMap = pointMap;

		this.update();

	}

	CameraHelper.prototype = Object.create( LineSegments.prototype );
	CameraHelper.prototype.constructor = CameraHelper;

	CameraHelper.prototype.update = function () {

		var geometry, pointMap;

		var vector = new Vector3();
		var camera = new Camera();

		function setPoint( point, x, y, z ) {

			vector.set( x, y, z ).unproject( camera );

			var points = pointMap[ point ];

			if ( points !== undefined ) {

				var position = geometry.getAttribute( 'position' );

				for ( var i = 0, l = points.length; i < l; i ++ ) {

					position.setXYZ( points[ i ], vector.x, vector.y, vector.z );

				}

			}

		}

		return function update() {

			geometry = this.geometry;
			pointMap = this.pointMap;

			var w = 1, h = 1;

			// we need just camera projection matrix
			// world matrix must be identity

			camera.projectionMatrix.copy( this.camera.projectionMatrix );

			// center / target

			setPoint( "c", 0, 0, - 1 );
			setPoint( "t", 0, 0,  1 );

			// near

			setPoint( "n1", - w, - h, - 1 );
			setPoint( "n2",   w, - h, - 1 );
			setPoint( "n3", - w,   h, - 1 );
			setPoint( "n4",   w,   h, - 1 );

			// far

			setPoint( "f1", - w, - h, 1 );
			setPoint( "f2",   w, - h, 1 );
			setPoint( "f3", - w,   h, 1 );
			setPoint( "f4",   w,   h, 1 );

			// up

			setPoint( "u1",   w * 0.7, h * 1.1, - 1 );
			setPoint( "u2", - w * 0.7, h * 1.1, - 1 );
			setPoint( "u3",         0, h * 2,   - 1 );

			// cross

			setPoint( "cf1", - w,   0, 1 );
			setPoint( "cf2",   w,   0, 1 );
			setPoint( "cf3",   0, - h, 1 );
			setPoint( "cf4",   0,   h, 1 );

			setPoint( "cn1", - w,   0, - 1 );
			setPoint( "cn2",   w,   0, - 1 );
			setPoint( "cn3",   0, - h, - 1 );
			setPoint( "cn4",   0,   h, - 1 );

			geometry.getAttribute( 'position' ).needsUpdate = true;

		};

	}();

	/**
	 * @author mrdoob / http://mrdoob.com/
	 * @author Mugen87 / http://github.com/Mugen87
	 */

	function BoxHelper( object, color ) {

		this.object = object;

		if ( color === undefined ) color = 0xffff00;

		var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );
		var positions = new Float32Array( 8 * 3 );

		var geometry = new BufferGeometry();
		geometry.setIndex( new BufferAttribute( indices, 1 ) );
		geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );

		LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );

		this.matrixAutoUpdate = false;

		this.update();

	}

	BoxHelper.prototype = Object.create( LineSegments.prototype );
	BoxHelper.prototype.constructor = BoxHelper;

	BoxHelper.prototype.update = ( function () {

		var box = new Box3();

		return function update( object ) {

			if ( object !== undefined ) {

				console.warn( 'THREE.BoxHelper: .update() has no longer arguments.' );

			}

			if ( this.object !== undefined ) {

				box.setFromObject( this.object );

			}

			if ( box.isEmpty() ) return;

			var min = box.min;
			var max = box.max;

			/*
			  5____4
			1/___0/|
			| 6__|_7
			2/___3/

			0: max.x, max.y, max.z
			1: min.x, max.y, max.z
			2: min.x, min.y, max.z
			3: max.x, min.y, max.z
			4: max.x, max.y, min.z
			5: min.x, max.y, min.z
			6: min.x, min.y, min.z
			7: max.x, min.y, min.z
			*/

			var position = this.geometry.attributes.position;
			var array = position.array;

			array[  0 ] = max.x; array[  1 ] = max.y; array[  2 ] = max.z;
			array[  3 ] = min.x; array[  4 ] = max.y; array[  5 ] = max.z;
			array[  6 ] = min.x; array[  7 ] = min.y; array[  8 ] = max.z;
			array[  9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;
			array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;
			array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;
			array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;
			array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;

			position.needsUpdate = true;

			this.geometry.computeBoundingSphere();

		};

	} )();

	BoxHelper.prototype.setFromObject = function ( object ) {

		this.object = object;
		this.update();

		return this;

	};

	/**
	 * @author WestLangley / http://github.com/WestLangley
	 * @author zz85 / http://github.com/zz85
	 * @author bhouston / http://clara.io
	 *
	 * Creates an arrow for visualizing directions
	 *
	 * Parameters:
	 *  dir - Vector3
	 *  origin - Vector3
	 *  length - Number
	 *  color - color in hex value
	 *  headLength - Number
	 *  headWidth - Number
	 */

	var lineGeometry;
	var coneGeometry;

	function ArrowHelper( dir, origin, length, color, headLength, headWidth ) {

		// dir is assumed to be normalized

		Object3D.call( this );

		if ( color === undefined ) color = 0xffff00;
		if ( length === undefined ) length = 1;
		if ( headLength === undefined ) headLength = 0.2 * length;
		if ( headWidth === undefined ) headWidth = 0.2 * headLength;

		if ( lineGeometry === undefined ) {

			lineGeometry = new BufferGeometry();
			lineGeometry.addAttribute( 'position', new Float32BufferAttribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );

			coneGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 );
			coneGeometry.translate( 0, - 0.5, 0 );

		}

		this.position.copy( origin );

		this.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) );
		this.line.matrixAutoUpdate = false;
		this.add( this.line );

		this.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) );
		this.cone.matrixAutoUpdate = false;
		this.add( this.cone );

		this.setDirection( dir );
		this.setLength( length, headLength, headWidth );

	}

	ArrowHelper.prototype = Object.create( Object3D.prototype );
	ArrowHelper.prototype.constructor = ArrowHelper;

	ArrowHelper.prototype.setDirection = ( function () {

		var axis = new Vector3();
		var radians;

		return function setDirection( dir ) {

			// dir is assumed to be normalized

			if ( dir.y > 0.99999 ) {

				this.quaternion.set( 0, 0, 0, 1 );

			} else if ( dir.y < - 0.99999 ) {

				this.quaternion.set( 1, 0, 0, 0 );

			} else {

				axis.set( dir.z, 0, - dir.x ).normalize();

				radians = Math.acos( dir.y );

				this.quaternion.setFromAxisAngle( axis, radians );

			}

		};

	}() );

	ArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {

		if ( headLength === undefined ) headLength = 0.2 * length;
		if ( headWidth === undefined ) headWidth = 0.2 * headLength;

		this.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );
		this.line.updateMatrix();

		this.cone.scale.set( headWidth, headLength, headWidth );
		this.cone.position.y = length;
		this.cone.updateMatrix();

	};

	ArrowHelper.prototype.setColor = function ( color ) {

		this.line.material.color.copy( color );
		this.cone.material.color.copy( color );

	};

	/**
	 * @author sroucheray / http://sroucheray.org/
	 * @author mrdoob / http://mrdoob.com/
	 */

	function AxisHelper( size ) {

		size = size || 1;

		var vertices = [
			0, 0, 0,  size, 0, 0,
			0, 0, 0,  0, size, 0,
			0, 0, 0,  0, 0, size
		];

		var colors = [
			1, 0, 0,  1, 0.6, 0,
			0, 1, 0,  0.6, 1, 0,
			0, 0, 1,  0, 0.6, 1
		];

		var geometry = new BufferGeometry();
		geometry.addAttribute( 'position', new Float32BufferAttribute( vertices, 3 ) );
		geometry.addAttribute( 'color', new Float32BufferAttribute( colors, 3 ) );

		var material = new LineBasicMaterial( { vertexColors: VertexColors } );

		LineSegments.call( this, geometry, material );

	}

	AxisHelper.prototype = Object.create( LineSegments.prototype );
	AxisHelper.prototype.constructor = AxisHelper;

	/**
	 * @author zz85 https://github.com/zz85
	 *
	 * Centripetal CatmullRom Curve - which is useful for avoiding
	 * cusps and self-intersections in non-uniform catmull rom curves.
	 * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
	 *
	 * curve.type accepts centripetal(default), chordal and catmullrom
	 * curve.tension is used for catmullrom which defaults to 0.5
	 */


	/*
	Based on an optimized c++ solution in
	 - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
	 - http://ideone.com/NoEbVM

	This CubicPoly class could be used for reusing some variables and calculations,
	but for three.js curve use, it could be possible inlined and flatten into a single function call
	which can be placed in CurveUtils.
	*/

	function CubicPoly() {

		var c0 = 0, c1 = 0, c2 = 0, c3 = 0;

		/*
		 * Compute coefficients for a cubic polynomial
		 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
		 * such that
		 *   p(0) = x0, p(1) = x1
		 *  and
		 *   p'(0) = t0, p'(1) = t1.
		 */
		function init( x0, x1, t0, t1 ) {

			c0 = x0;
			c1 = t0;
			c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;
			c3 = 2 * x0 - 2 * x1 + t0 + t1;

		}

		return {

			initCatmullRom: function ( x0, x1, x2, x3, tension ) {

				init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );

			},

			initNonuniformCatmullRom: function ( x0, x1, x2, x3, dt0, dt1, dt2 ) {

				// compute tangents when parameterized in [t1,t2]
				var t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;
				var t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;

				// rescale tangents for parametrization in [0,1]
				t1 *= dt1;
				t2 *= dt1;

				init( x1, x2, t1, t2 );

			},

			calc: function ( t ) {

				var t2 = t * t;
				var t3 = t2 * t;
				return c0 + c1 * t + c2 * t2 + c3 * t3;

			}

		};

	}

	//

	var tmp = new Vector3();
	var px = new CubicPoly();
	var py = new CubicPoly();
	var pz = new CubicPoly();

	function CatmullRomCurve3( points ) {

		Curve.call( this );

		if ( points.length < 2 ) console.warn( 'THREE.CatmullRomCurve3: Points array needs at least two entries.' );

		this.points = points || [];
		this.closed = false;

	}

	CatmullRomCurve3.prototype = Object.create( Curve.prototype );
	CatmullRomCurve3.prototype.constructor = CatmullRomCurve3;

	CatmullRomCurve3.prototype.getPoint = function ( t ) {

		var points = this.points;
		var l = points.length;

		var point = ( l - ( this.closed ? 0 : 1 ) ) * t;
		var intPoint = Math.floor( point );
		var weight = point - intPoint;

		if ( this.closed ) {

			intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / points.length ) + 1 ) * points.length;

		} else if ( weight === 0 && intPoint === l - 1 ) {

			intPoint = l - 2;
			weight = 1;

		}

		var p0, p1, p2, p3; // 4 points

		if ( this.closed || intPoint > 0 ) {

			p0 = points[ ( intPoint - 1 ) % l ];

		} else {

			// extrapolate first point
			tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );
			p0 = tmp;

		}

		p1 = points[ intPoint % l ];
		p2 = points[ ( intPoint + 1 ) % l ];

		if ( this.closed || intPoint + 2 < l ) {

			p3 = points[ ( intPoint + 2 ) % l ];

		} else {

			// extrapolate last point
			tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );
			p3 = tmp;

		}

		if ( this.type === undefined || this.type === 'centripetal' || this.type === 'chordal' ) {

			// init Centripetal / Chordal Catmull-Rom
			var pow = this.type === 'chordal' ? 0.5 : 0.25;
			var dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );
			var dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );
			var dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );

			// safety check for repeated points
			if ( dt1 < 1e-4 ) dt1 = 1.0;
			if ( dt0 < 1e-4 ) dt0 = dt1;
			if ( dt2 < 1e-4 ) dt2 = dt1;

			px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );
			py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );
			pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );

		} else if ( this.type === 'catmullrom' ) {

			var tension = this.tension !== undefined ? this.tension : 0.5;
			px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, tension );
			py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, tension );
			pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, tension );

		}

		return new Vector3( px.calc( weight ), py.calc( weight ), pz.calc( weight ) );

	};

	function CubicBezierCurve3( v0, v1, v2, v3 ) {

		Curve.call( this );

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;
		this.v3 = v3;

	}

	CubicBezierCurve3.prototype = Object.create( Curve.prototype );
	CubicBezierCurve3.prototype.constructor = CubicBezierCurve3;

	CubicBezierCurve3.prototype.getPoint = function ( t ) {

		var v0 = this.v0, v1 = this.v1, v2 = this.v2, v3 = this.v3;

		return new Vector3(
			CubicBezier( t, v0.x, v1.x, v2.x, v3.x ),
			CubicBezier( t, v0.y, v1.y, v2.y, v3.y ),
			CubicBezier( t, v0.z, v1.z, v2.z, v3.z )
		);

	};

	function QuadraticBezierCurve3( v0, v1, v2 ) {

		Curve.call( this );

		this.v0 = v0;
		this.v1 = v1;
		this.v2 = v2;

	}

	QuadraticBezierCurve3.prototype = Object.create( Curve.prototype );
	QuadraticBezierCurve3.prototype.constructor = QuadraticBezierCurve3;

	QuadraticBezierCurve3.prototype.getPoint = function ( t ) {

		var v0 = this.v0, v1 = this.v1, v2 = this.v2;

		return new Vector3(
			QuadraticBezier( t, v0.x, v1.x, v2.x ),
			QuadraticBezier( t, v0.y, v1.y, v2.y ),
			QuadraticBezier( t, v0.z, v1.z, v2.z )
		);

	};

	function LineCurve3( v1, v2 ) {

		Curve.call( this );

		this.v1 = v1;
		this.v2 = v2;

	}

	LineCurve3.prototype = Object.create( Curve.prototype );
	LineCurve3.prototype.constructor = LineCurve3;

	LineCurve3.prototype.getPoint = function ( t ) {

		if ( t === 1 ) {

			return this.v2.clone();

		}

		var vector = new Vector3();

		vector.subVectors( this.v2, this.v1 ); // diff
		vector.multiplyScalar( t );
		vector.add( this.v1 );

		return vector;

	};

	function ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {

		EllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );

	}

	ArcCurve.prototype = Object.create( EllipseCurve.prototype );
	ArcCurve.prototype.constructor = ArcCurve;

	/**
	 * @author alteredq / http://alteredqualia.com/
	 */

	var SceneUtils = {

		createMultiMaterialObject: function ( geometry, materials ) {

			var group = new Group();

			for ( var i = 0, l = materials.length; i < l; i ++ ) {

				group.add( new Mesh( geometry, materials[ i ] ) );

			}

			return group;

		},

		detach: function ( child, parent, scene ) {

			child.applyMatrix( parent.matrixWorld );
			parent.remove( child );
			scene.add( child );

		},

		attach: function ( child, scene, parent ) {

			child.applyMatrix( new Matrix4().getInverse( parent.matrixWorld ) );

			scene.remove( child );
			parent.add( child );

		}

	};

	/**
	 * @author mrdoob / http://mrdoob.com/
	 */

	function Face4( a, b, c, d, normal, color, materialIndex ) {

		console.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );
		return new Face3( a, b, c, normal, color, materialIndex );

	}

	var LineStrip = 0;

	var LinePieces = 1;

	function MeshFaceMaterial( materials ) {

		console.warn( 'THREE.MeshFaceMaterial has been removed. Use an Array instead.' );
		return materials;

	}

	function MultiMaterial( materials ) {

		if ( materials === undefined ) materials = [];

		console.warn( 'THREE.MultiMaterial has been removed. Use an Array instead.' );
		materials.isMultiMaterial = true;
		materials.materials = materials;
		materials.clone = function () {

			return materials.slice();

		};
		return materials;

	}

	function PointCloud( geometry, material ) {

		console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );
		return new Points( geometry, material );

	}

	function Particle( material ) {

		console.warn( 'THREE.Particle has been renamed to THREE.Sprite.' );
		return new Sprite( material );

	}

	function ParticleSystem( geometry, material ) {

		console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );
		return new Points( geometry, material );

	}

	function PointCloudMaterial( parameters ) {

		console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );
		return new PointsMaterial( parameters );

	}

	function ParticleBasicMaterial( parameters ) {

		console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );
		return new PointsMaterial( parameters );

	}

	function ParticleSystemMaterial( parameters ) {

		console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );
		return new PointsMaterial( parameters );

	}

	function Vertex( x, y, z ) {

		console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );
		return new Vector3( x, y, z );

	}

	//

	function DynamicBufferAttribute( array, itemSize ) {

		console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );
		return new BufferAttribute( array, itemSize ).setDynamic( true );

	}

	function Int8Attribute( array, itemSize ) {

		console.warn( 'THREE.Int8Attribute has been removed. Use new THREE.Int8BufferAttribute() instead.' );
		return new Int8BufferAttribute( array, itemSize );

	}

	function Uint8Attribute( array, itemSize ) {

		console.warn( 'THREE.Uint8Attribute has been removed. Use new THREE.Uint8BufferAttribute() instead.' );
		return new Uint8BufferAttribute( array, itemSize );

	}

	function Uint8ClampedAttribute( array, itemSize ) {

		console.warn( 'THREE.Uint8ClampedAttribute has been removed. Use new THREE.Uint8ClampedBufferAttribute() instead.' );
		return new Uint8ClampedBufferAttribute( array, itemSize );

	}

	function Int16Attribute( array, itemSize ) {

		console.warn( 'THREE.Int16Attribute has been removed. Use new THREE.Int16BufferAttribute() instead.' );
		return new Int16BufferAttribute( array, itemSize );

	}

	function Uint16Attribute( array, itemSize ) {

		console.warn( 'THREE.Uint16Attribute has been removed. Use new THREE.Uint16BufferAttribute() instead.' );
		return new Uint16BufferAttribute( array, itemSize );

	}

	function Int32Attribute( array, itemSize ) {

		console.warn( 'THREE.Int32Attribute has been removed. Use new THREE.Int32BufferAttribute() instead.' );
		return new Int32BufferAttribute( array, itemSize );

	}

	function Uint32Attribute( array, itemSize ) {

		console.warn( 'THREE.Uint32Attribute has been removed. Use new THREE.Uint32BufferAttribute() instead.' );
		return new Uint32BufferAttribute( array, itemSize );

	}

	function Float32Attribute( array, itemSize ) {

		console.warn( 'THREE.Float32Attribute has been removed. Use new THREE.Float32BufferAttribute() instead.' );
		return new Float32BufferAttribute( array, itemSize );

	}

	function Float64Attribute( array, itemSize ) {

		console.warn( 'THREE.Float64Attribute has been removed. Use new THREE.Float64BufferAttribute() instead.' );
		return new Float64BufferAttribute( array, itemSize );

	}

	//

	Curve.create = function ( construct, getPoint ) {

		console.log( 'THREE.Curve.create() has been deprecated' );

		construct.prototype = Object.create( Curve.prototype );
		construct.prototype.constructor = construct;
		construct.prototype.getPoint = getPoint;

		return construct;

	};

	//

	function ClosedSplineCurve3( points ) {

		console.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );

		CatmullRomCurve3.call( this, points );
		this.type = 'catmullrom';
		this.closed = true;

	}

	ClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );

	//

	function SplineCurve3( points ) {

		console.warn( 'THREE.SplineCurve3 has been deprecated. Use THREE.CatmullRomCurve3 instead.' );

		CatmullRomCurve3.call( this, points );
		this.type = 'catmullrom';

	}

	SplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );

	//

	function Spline( points ) {

		console.warn( 'THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.' );

		CatmullRomCurve3.call( this, points );
		this.type = 'catmullrom';

	}

	Spline.prototype = Object.create( CatmullRomCurve3.prototype );

	Object.assign( Spline.prototype, {

		initFromArray: function ( a ) {

			console.error( 'THREE.Spline: .initFromArray() has been removed.' );

		},
		getControlPointsArray: function ( optionalTarget ) {

			console.error( 'THREE.Spline: .getControlPointsArray() has been removed.' );

		},
		reparametrizeByArcLength: function ( samplingCoef ) {

			console.error( 'THREE.Spline: .reparametrizeByArcLength() has been removed.' );

		}

	} );

	//
	function BoundingBoxHelper( object, color ) {

		console.warn( 'THREE.BoundingBoxHelper has been deprecated. Creating a THREE.BoxHelper instead.' );
		return new BoxHelper( object, color );

	}

	function EdgesHelper( object, hex ) {

		console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );
		return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );

	}

	GridHelper.prototype.setColors = function () {

		console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );

	};

	SkeletonHelper.prototype.update = function () {

		console.error( 'THREE.SkeletonHelper: update() no longer needs to be called.' );
		
	};

	function WireframeHelper( object, hex ) {

		console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );
		return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );

	}

	//

	function XHRLoader( manager ) {

		console.warn( 'THREE.XHRLoader has been renamed to THREE.FileLoader.' );
		return new FileLoader( manager );

	}

	function BinaryTextureLoader( manager ) {

		console.warn( 'THREE.BinaryTextureLoader has been renamed to THREE.DataTextureLoader.' );
		return new DataTextureLoader( manager );

	}

	//

	Object.assign( Box2.prototype, {

		center: function ( optionalTarget ) {

			console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );
			return this.getCenter( optionalTarget );

		},
		empty: function () {

			console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );
			return this.isEmpty();

		},
		isIntersectionBox: function ( box ) {

			console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );
			return this.intersectsBox( box );

		},
		size: function ( optionalTarget ) {

			console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );
			return this.getSize( optionalTarget );

		}
	} );

	Object.assign( Box3.prototype, {

		center: function ( optionalTarget ) {

			console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );
			return this.getCenter( optionalTarget );

		},
		empty: function () {

			console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );
			return this.isEmpty();

		},
		isIntersectionBox: function ( box ) {

			console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );
			return this.intersectsBox( box );

		},
		isIntersectionSphere: function ( sphere ) {

			console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
			return this.intersectsSphere( sphere );

		},
		size: function ( optionalTarget ) {

			console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );
			return this.getSize( optionalTarget );

		}
	} );

	Line3.prototype.center = function ( optionalTarget ) {

		console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );
		return this.getCenter( optionalTarget );

	};

	_Math.random16 = function () {

		console.warn( 'THREE.Math.random16() has been deprecated. Use Math.random() instead.' );
		return Math.random();

	};

	Object.assign( Matrix3.prototype, {

		flattenToArrayOffset: function ( array, offset ) {

			console.warn( "THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
			return this.toArray( array, offset );

		},
		multiplyVector3: function ( vector ) {

			console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );
			return vector.applyMatrix3( this );

		},
		multiplyVector3Array: function ( a ) {

			console.error( 'THREE.Matrix3: .multiplyVector3Array() has been removed.'  );

		},
		applyToBuffer: function( buffer, offset, length ) {

			console.warn( 'THREE.Matrix3: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
			return this.applyToBufferAttribute( buffer );

		},
		applyToVector3Array: function( array, offset, length ) {

			console.error( 'THREE.Matrix3: .applyToVector3Array() has been removed.' );

		}

	} );

	Object.assign( Matrix4.prototype, {

		extractPosition: function ( m ) {

			console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );
			return this.copyPosition( m );

		},
		flattenToArrayOffset: function ( array, offset ) {

			console.warn( "THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead." );
			return this.toArray( array, offset );

		},
		getPosition: function () {

			var v1;

			return function getPosition() {

				if ( v1 === undefined ) v1 = new Vector3();
				console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );
				return v1.setFromMatrixColumn( this, 3 );

			};

		}(),
		setRotationFromQuaternion: function ( q ) {

			console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );
			return this.makeRotationFromQuaternion( q );

		},
		multiplyToArray: function () {

			console.warn( 'THREE.Matrix4: .multiplyToArray() has been removed.' );

		},
		multiplyVector3: function ( vector ) {

			console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
			return vector.applyMatrix4( this );

		},
		multiplyVector4: function ( vector ) {

			console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
			return vector.applyMatrix4( this );

		},
		multiplyVector3Array: function ( a ) {

			console.error( 'THREE.Matrix4: .multiplyVector3Array() has been removed.'  );

		},
		rotateAxis: function ( v ) {

			console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );
			v.transformDirection( this );

		},
		crossVector: function ( vector ) {

			console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );
			return vector.applyMatrix4( this );

		},
		translate: function () {

			console.error( 'THREE.Matrix4: .translate() has been removed.' );

		},
		rotateX: function () {

			console.error( 'THREE.Matrix4: .rotateX() has been removed.' );

		},
		rotateY: function () {

			console.error( 'THREE.Matrix4: .rotateY() has been removed.' );

		},
		rotateZ: function () {

			console.error( 'THREE.Matrix4: .rotateZ() has been removed.' );

		},
		rotateByAxis: function () {

			console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );

		},
		applyToBuffer: function( buffer, offset, length ) {

			console.warn( 'THREE.Matrix4: .applyToBuffer() has been removed. Use matrix.applyToBufferAttribute( attribute ) instead.' );
			return this.applyToBufferAttribute( buffer );

		},
		applyToVector3Array: function( array, offset, length ) {

			console.error( 'THREE.Matrix4: .applyToVector3Array() has been removed.' );

		},
		makeFrustum: function( left, right, bottom, top, near, far ) {

			console.warn( 'THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.' );
			return this.makePerspective( left, right, top, bottom, near, far );

		}

	} );

	Plane.prototype.isIntersectionLine = function ( line ) {

		console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );
		return this.intersectsLine( line );

	};

	Quaternion.prototype.multiplyVector3 = function ( vector ) {

		console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );
		return vector.applyQuaternion( this );

	};

	Object.assign( Ray.prototype, {

		isIntersectionBox: function ( box ) {

			console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );
			return this.intersectsBox( box );

		},
		isIntersectionPlane: function ( plane ) {

			console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );
			return this.intersectsPlane( plane );

		},
		isIntersectionSphere: function ( sphere ) {

			console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );
			return this.intersectsSphere( sphere );

		}

	} );

	Object.assign( Shape.prototype, {

		extrude: function ( options ) {

			console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );
			return new ExtrudeGeometry( this, options );

		},
		makeGeometry: function ( options ) {

			console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );
			return new ShapeGeometry( this, options );

		}

	} );

	Object.assign( Vector2.prototype, {

		fromAttribute: function ( attribute, index, offset ) {

			console.error( 'THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().' );
			return this.fromBufferAttribute( attribute, index, offset );

		}

	} );

	Object.assign( Vector3.prototype, {

		setEulerFromRotationMatrix: function () {

			console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );

		},
		setEulerFromQuaternion: function () {

			console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );

		},
		getPositionFromMatrix: function ( m ) {

			console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );
			return this.setFromMatrixPosition( m );

		},
		getScaleFromMatrix: function ( m ) {

			console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );
			return this.setFromMatrixScale( m );

		},
		getColumnFromMatrix: function ( index, matrix ) {

			console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );
			return this.setFromMatrixColumn( matrix, index );

		},
		applyProjection: function ( m ) {

			console.warn( 'THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.' );
			return this.applyMatrix4( m );

		},
		fromAttribute: function ( attribute, index, offset ) {

			console.error( 'THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().' );
			return this.fromBufferAttribute( attribute, index, offset );

		}

	} );

	Object.assign( Vector4.prototype, {

		fromAttribute: function ( attribute, index, offset ) {

			console.error( 'THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().' );
			return this.fromBufferAttribute( attribute, index, offset );

		}

	} );

	//

	Geometry.prototype.computeTangents = function () {

		console.warn( 'THREE.Geometry: .computeTangents() has been removed.' );

	};

	Object.assign( Object3D.prototype, {

		getChildByName: function ( name ) {

			console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );
			return this.getObjectByName( name );

		},
		renderDepth: function () {

			console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );

		},
		translate: function ( distance, axis ) {

			console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );
			return this.translateOnAxis( axis, distance );

		}

	} );

	Object.defineProperties( Object3D.prototype, {

		eulerOrder: {
			get: function () {

				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
				return this.rotation.order;

			},
			set: function ( value ) {

				console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );
				this.rotation.order = value;

			}
		},
		useQuaternion: {
			get: function () {

				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );

			},
			set: function () {

				console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );

			}
		}

	} );

	Object.defineProperties( LOD.prototype, {

		objects: {
			get: function () {

				console.warn( 'THREE.LOD: .objects has been renamed to .levels.' );
				return this.levels;

			}
		}

	} );

	Object.defineProperty( Skeleton.prototype, 'useVertexTexture', {

		get: function () {

			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );

		},
		set: function () {

			console.warn( 'THREE.Skeleton: useVertexTexture has been removed.' );

		}

	} );

	Object.defineProperty( Curve.prototype, '__arcLengthDivisions', {

		get: function () {

			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
			return this.arcLengthDivisions;

		},
		set: function ( value ) {

			console.warn( 'THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.' );
			this.arcLengthDivisions = value;

		}

	} );

	//

	PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {

		console.warn( "THREE.PerspectiveCamera.setLens is deprecated. " +
				"Use .setFocalLength and .filmGauge for a photographic setup." );

		if ( filmGauge !== undefined ) this.filmGauge = filmGauge;
		this.setFocalLength( focalLength );

	};

	//

	Object.defineProperties( Light.prototype, {
		onlyShadow: {
			set: function () {

				console.warn( 'THREE.Light: .onlyShadow has been removed.' );

			}
		},
		shadowCameraFov: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );
				this.shadow.camera.fov = value;

			}
		},
		shadowCameraLeft: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );
				this.shadow.camera.left = value;

			}
		},
		shadowCameraRight: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );
				this.shadow.camera.right = value;

			}
		},
		shadowCameraTop: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );
				this.shadow.camera.top = value;

			}
		},
		shadowCameraBottom: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );
				this.shadow.camera.bottom = value;

			}
		},
		shadowCameraNear: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );
				this.shadow.camera.near = value;

			}
		},
		shadowCameraFar: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );
				this.shadow.camera.far = value;

			}
		},
		shadowCameraVisible: {
			set: function () {

				console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );

			}
		},
		shadowBias: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );
				this.shadow.bias = value;

			}
		},
		shadowDarkness: {
			set: function () {

				console.warn( 'THREE.Light: .shadowDarkness has been removed.' );

			}
		},
		shadowMapWidth: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );
				this.shadow.mapSize.width = value;

			}
		},
		shadowMapHeight: {
			set: function ( value ) {

				console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );
				this.shadow.mapSize.height = value;

			}
		}
	} );

	//

	Object.defineProperties( BufferAttribute.prototype, {

		length: {
			get: function () {

				console.warn( 'THREE.BufferAttribute: .length has been deprecated. Use .count instead.' );
				return this.array.length;

			}
		}

	} );

	Object.assign( BufferGeometry.prototype, {

		addIndex: function ( index ) {

			console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );
			this.setIndex( index );

		},
		addDrawCall: function ( start, count, indexOffset ) {

			if ( indexOffset !== undefined ) {

				console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );

			}
			console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );
			this.addGroup( start, count );

		},
		clearDrawCalls: function () {

			console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );
			this.clearGroups();

		},
		computeTangents: function () {

			console.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );

		},
		computeOffsets: function () {

			console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );

		}

	} );

	Object.defineProperties( BufferGeometry.prototype, {

		drawcalls: {
			get: function () {

				console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );
				return this.groups;

			}
		},
		offsets: {
			get: function () {

				console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );
				return this.groups;

			}
		}

	} );

	//

	Object.defineProperties( Uniform.prototype, {

		dynamic: {
			set: function () {

				console.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' );

			}
		},
		onUpdate: {
			value: function () {

				console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );
				return this;

			}
		}

	} );

	//

	Object.defineProperties( Material.prototype, {

		wrapAround: {
			get: function () {

				console.warn( 'THREE.Material: .wrapAround has been removed.' );

			},
			set: function () {

				console.warn( 'THREE.Material: .wrapAround has been removed.' );

			}
		},
		wrapRGB: {
			get: function () {

				console.warn( 'THREE.Material: .wrapRGB has been removed.' );
				return new Color();

			}
		}

	} );

	Object.defineProperties( MeshPhongMaterial.prototype, {

		metal: {
			get: function () {

				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );
				return false;

			},
			set: function () {

				console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );

			}
		}

	} );

	Object.defineProperties( ShaderMaterial.prototype, {

		derivatives: {
			get: function () {

				console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
				return this.extensions.derivatives;

			},
			set: function ( value ) {

				console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );
				this.extensions.derivatives = value;

			}
		}

	} );

	//

	Object.assign( WebGLRenderer.prototype, {

		getCurrentRenderTarget: function () {

			console.warn( 'THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().' );
			return this.getRenderTarget();

		},

		supportsFloatTextures: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' );
			return this.extensions.get( 'OES_texture_float' );

		},
		supportsHalfFloatTextures: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' );
			return this.extensions.get( 'OES_texture_half_float' );

		},
		supportsStandardDerivatives: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' );
			return this.extensions.get( 'OES_standard_derivatives' );

		},
		supportsCompressedTextureS3TC: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' );
			return this.extensions.get( 'WEBGL_compressed_texture_s3tc' );

		},
		supportsCompressedTexturePVRTC: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' );
			return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );

		},
		supportsBlendMinMax: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' );
			return this.extensions.get( 'EXT_blend_minmax' );

		},
		supportsVertexTextures: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.' );
			return this.capabilities.vertexTextures;

		},
		supportsInstancedArrays: function () {

			console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' );
			return this.extensions.get( 'ANGLE_instanced_arrays' );

		},
		enableScissorTest: function ( boolean ) {

			console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );
			this.setScissorTest( boolean );

		},
		initMaterial: function () {

			console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );

		},
		addPrePlugin: function () {

			console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );

		},
		addPostPlugin: function () {

			console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );

		},
		updateShadowMap: function () {

			console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );

		}

	} );

	Object.defineProperties( WebGLRenderer.prototype, {

		shadowMapEnabled: {
			get: function () {

				return this.shadowMap.enabled;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );
				this.shadowMap.enabled = value;

			}
		},
		shadowMapType: {
			get: function () {

				return this.shadowMap.type;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );
				this.shadowMap.type = value;

			}
		},
		shadowMapCullFace: {
			get: function () {

				return this.shadowMap.cullFace;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace is now .shadowMap.cullFace.' );
				this.shadowMap.cullFace = value;

			}
		}
	} );

	Object.defineProperties( WebGLShadowMap.prototype, {

		cullFace: {
			get: function () {

				return this.renderReverseSided ? CullFaceFront : CullFaceBack;

			},
			set: function ( cullFace ) {

				var value = ( cullFace !== CullFaceBack );
				console.warn( "WebGLRenderer: .shadowMap.cullFace is deprecated. Set .shadowMap.renderReverseSided to " + value + "." );
				this.renderReverseSided = value;

			}
		}

	} );

	//

	Object.defineProperties( WebGLRenderTarget.prototype, {

		wrapS: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
				return this.texture.wrapS;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );
				this.texture.wrapS = value;

			}
		},
		wrapT: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
				return this.texture.wrapT;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );
				this.texture.wrapT = value;

			}
		},
		magFilter: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
				return this.texture.magFilter;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );
				this.texture.magFilter = value;

			}
		},
		minFilter: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
				return this.texture.minFilter;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );
				this.texture.minFilter = value;

			}
		},
		anisotropy: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
				return this.texture.anisotropy;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );
				this.texture.anisotropy = value;

			}
		},
		offset: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
				return this.texture.offset;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );
				this.texture.offset = value;

			}
		},
		repeat: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
				return this.texture.repeat;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );
				this.texture.repeat = value;

			}
		},
		format: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
				return this.texture.format;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );
				this.texture.format = value;

			}
		},
		type: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
				return this.texture.type;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );
				this.texture.type = value;

			}
		},
		generateMipmaps: {
			get: function () {

				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
				return this.texture.generateMipmaps;

			},
			set: function ( value ) {

				console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );
				this.texture.generateMipmaps = value;

			}
		}

	} );

	//

	Audio.prototype.load = function ( file ) {

		console.warn( 'THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.' );
		var scope = this;
		var audioLoader = new AudioLoader();
		audioLoader.load( file, function ( buffer ) {

			scope.setBuffer( buffer );

		} );
		return this;

	};

	AudioAnalyser.prototype.getData = function () {

		console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );
		return this.getFrequencyData();

	};

	//

	var GeometryUtils = {

		merge: function ( geometry1, geometry2, materialIndexOffset ) {

			console.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );
			var matrix;

			if ( geometry2.isMesh ) {

				geometry2.matrixAutoUpdate && geometry2.updateMatrix();

				matrix = geometry2.matrix;
				geometry2 = geometry2.geometry;

			}

			geometry1.merge( geometry2, matrix, materialIndexOffset );

		},

		center: function ( geometry ) {

			console.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );
			return geometry.center();

		}

	};

	var ImageUtils = {

		crossOrigin: undefined,

		loadTexture: function ( url, mapping, onLoad, onError ) {

			console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );

			var loader = new TextureLoader();
			loader.setCrossOrigin( this.crossOrigin );

			var texture = loader.load( url, onLoad, undefined, onError );

			if ( mapping ) texture.mapping = mapping;

			return texture;

		},

		loadTextureCube: function ( urls, mapping, onLoad, onError ) {

			console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );

			var loader = new CubeTextureLoader();
			loader.setCrossOrigin( this.crossOrigin );

			var texture = loader.load( urls, onLoad, undefined, onError );

			if ( mapping ) texture.mapping = mapping;

			return texture;

		},

		loadCompressedTexture: function () {

			console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );

		},

		loadCompressedTextureCube: function () {

			console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );

		}

	};

	//

	function Projector() {

		console.error( 'THREE.Projector has been moved to /examples/js/renderers/Projector.js.' );

		this.projectVector = function ( vector, camera ) {

			console.warn( 'THREE.Projector: .projectVector() is now vector.project().' );
			vector.project( camera );

		};

		this.unprojectVector = function ( vector, camera ) {

			console.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );
			vector.unproject( camera );

		};

		this.pickingRay = function () {

			console.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );

		};

	}

	//

	function CanvasRenderer() {

		console.error( 'THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js' );

		this.domElement = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );
		this.clear = function () {};
		this.render = function () {};
		this.setClearColor = function () {};
		this.setSize = function () {};

	}

	exports.WebGLRenderTargetCube = WebGLRenderTargetCube;
	exports.WebGLRenderTarget = WebGLRenderTarget;
	exports.WebGLRenderer = WebGLRenderer;
	exports.ShaderLib = ShaderLib;
	exports.UniformsLib = UniformsLib;
	exports.UniformsUtils = UniformsUtils;
	exports.ShaderChunk = ShaderChunk;
	exports.FogExp2 = FogExp2;
	exports.Fog = Fog;
	exports.Scene = Scene;
	exports.LensFlare = LensFlare;
	exports.Sprite = Sprite;
	exports.LOD = LOD;
	exports.SkinnedMesh = SkinnedMesh;
	exports.Skeleton = Skeleton;
	exports.Bone = Bone;
	exports.Mesh = Mesh;
	exports.LineSegments = LineSegments;
	exports.LineLoop = LineLoop;
	exports.Line = Line;
	exports.Points = Points;
	exports.Group = Group;
	exports.VideoTexture = VideoTexture;
	exports.DataTexture = DataTexture;
	exports.CompressedTexture = CompressedTexture;
	exports.CubeTexture = CubeTexture;
	exports.CanvasTexture = CanvasTexture;
	exports.DepthTexture = DepthTexture;
	exports.Texture = Texture;
	exports.CompressedTextureLoader = CompressedTextureLoader;
	exports.DataTextureLoader = DataTextureLoader;
	exports.CubeTextureLoader = CubeTextureLoader;
	exports.TextureLoader = TextureLoader;
	exports.ObjectLoader = ObjectLoader;
	exports.MaterialLoader = MaterialLoader;
	exports.BufferGeometryLoader = BufferGeometryLoader;
	exports.DefaultLoadingManager = DefaultLoadingManager;
	exports.LoadingManager = LoadingManager;
	exports.JSONLoader = JSONLoader;
	exports.ImageLoader = ImageLoader;
	exports.FontLoader = FontLoader;
	exports.FileLoader = FileLoader;
	exports.Loader = Loader;
	exports.Cache = Cache;
	exports.AudioLoader = AudioLoader;
	exports.SpotLightShadow = SpotLightShadow;
	exports.SpotLight = SpotLight;
	exports.PointLight = PointLight;
	exports.RectAreaLight = RectAreaLight;
	exports.HemisphereLight = HemisphereLight;
	exports.DirectionalLightShadow = DirectionalLightShadow;
	exports.DirectionalLight = DirectionalLight;
	exports.AmbientLight = AmbientLight;
	exports.LightShadow = LightShadow;
	exports.Light = Light;
	exports.StereoCamera = StereoCamera;
	exports.PerspectiveCamera = PerspectiveCamera;
	exports.OrthographicCamera = OrthographicCamera;
	exports.CubeCamera = CubeCamera;
	exports.ArrayCamera = ArrayCamera;
	exports.Camera = Camera;
	exports.AudioListener = AudioListener;
	exports.PositionalAudio = PositionalAudio;
	exports.AudioContext = AudioContext;
	exports.AudioAnalyser = AudioAnalyser;
	exports.Audio = Audio;
	exports.VectorKeyframeTrack = VectorKeyframeTrack;
	exports.StringKeyframeTrack = StringKeyframeTrack;
	exports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;
	exports.NumberKeyframeTrack = NumberKeyframeTrack;
	exports.ColorKeyframeTrack = ColorKeyframeTrack;
	exports.BooleanKeyframeTrack = BooleanKeyframeTrack;
	exports.PropertyMixer = PropertyMixer;
	exports.PropertyBinding = PropertyBinding;
	exports.KeyframeTrack = KeyframeTrack;
	exports.AnimationUtils = AnimationUtils;
	exports.AnimationObjectGroup = AnimationObjectGroup;
	exports.AnimationMixer = AnimationMixer;
	exports.AnimationClip = AnimationClip;
	exports.Uniform = Uniform;
	exports.InstancedBufferGeometry = InstancedBufferGeometry;
	exports.BufferGeometry = BufferGeometry;
	exports.GeometryIdCount = GeometryIdCount;
	exports.Geometry = Geometry;
	exports.InterleavedBufferAttribute = InterleavedBufferAttribute;
	exports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;
	exports.InterleavedBuffer = InterleavedBuffer;
	exports.InstancedBufferAttribute = InstancedBufferAttribute;
	exports.Face3 = Face3;
	exports.Object3D = Object3D;
	exports.Raycaster = Raycaster;
	exports.Layers = Layers;
	exports.EventDispatcher = EventDispatcher;
	exports.Clock = Clock;
	exports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;
	exports.LinearInterpolant = LinearInterpolant;
	exports.DiscreteInterpolant = DiscreteInterpolant;
	exports.CubicInterpolant = CubicInterpolant;
	exports.Interpolant = Interpolant;
	exports.Triangle = Triangle;
	exports.Math = _Math;
	exports.Spherical = Spherical;
	exports.Cylindrical = Cylindrical;
	exports.Plane = Plane;
	exports.Frustum = Frustum;
	exports.Sphere = Sphere;
	exports.Ray = Ray;
	exports.Matrix4 = Matrix4;
	exports.Matrix3 = Matrix3;
	exports.Box3 = Box3;
	exports.Box2 = Box2;
	exports.Line3 = Line3;
	exports.Euler = Euler;
	exports.Vector4 = Vector4;
	exports.Vector3 = Vector3;
	exports.Vector2 = Vector2;
	exports.Quaternion = Quaternion;
	exports.Color = Color;
	exports.MorphBlendMesh = MorphBlendMesh;
	exports.ImmediateRenderObject = ImmediateRenderObject;
	exports.VertexNormalsHelper = VertexNormalsHelper;
	exports.SpotLightHelper = SpotLightHelper;
	exports.SkeletonHelper = SkeletonHelper;
	exports.PointLightHelper = PointLightHelper;
	exports.RectAreaLightHelper = RectAreaLightHelper;
	exports.HemisphereLightHelper = HemisphereLightHelper;
	exports.GridHelper = GridHelper;
	exports.PolarGridHelper = PolarGridHelper;
	exports.FaceNormalsHelper = FaceNormalsHelper;
	exports.DirectionalLightHelper = DirectionalLightHelper;
	exports.CameraHelper = CameraHelper;
	exports.BoxHelper = BoxHelper;
	exports.ArrowHelper = ArrowHelper;
	exports.AxisHelper = AxisHelper;
	exports.CatmullRomCurve3 = CatmullRomCurve3;
	exports.CubicBezierCurve3 = CubicBezierCurve3;
	exports.QuadraticBezierCurve3 = QuadraticBezierCurve3;
	exports.LineCurve3 = LineCurve3;
	exports.ArcCurve = ArcCurve;
	exports.EllipseCurve = EllipseCurve;
	exports.SplineCurve = SplineCurve;
	exports.CubicBezierCurve = CubicBezierCurve;
	exports.QuadraticBezierCurve = QuadraticBezierCurve;
	exports.LineCurve = LineCurve;
	exports.Shape = Shape;
	exports.Path = Path;
	exports.ShapePath = ShapePath;
	exports.Font = Font;
	exports.CurvePath = CurvePath;
	exports.Curve = Curve;
	exports.ShapeUtils = ShapeUtils;
	exports.SceneUtils = SceneUtils;
	exports.WireframeGeometry = WireframeGeometry;
	exports.ParametricGeometry = ParametricGeometry;
	exports.ParametricBufferGeometry = ParametricBufferGeometry;
	exports.TetrahedronGeometry = TetrahedronGeometry;
	exports.TetrahedronBufferGeometry = TetrahedronBufferGeometry;
	exports.OctahedronGeometry = OctahedronGeometry;
	exports.OctahedronBufferGeometry = OctahedronBufferGeometry;
	exports.IcosahedronGeometry = IcosahedronGeometry;
	exports.IcosahedronBufferGeometry = IcosahedronBufferGeometry;
	exports.DodecahedronGeometry = DodecahedronGeometry;
	exports.DodecahedronBufferGeometry = DodecahedronBufferGeometry;
	exports.PolyhedronGeometry = PolyhedronGeometry;
	exports.PolyhedronBufferGeometry = PolyhedronBufferGeometry;
	exports.TubeGeometry = TubeGeometry;
	exports.TubeBufferGeometry = TubeBufferGeometry;
	exports.TorusKnotGeometry = TorusKnotGeometry;
	exports.TorusKnotBufferGeometry = TorusKnotBufferGeometry;
	exports.TorusGeometry = TorusGeometry;
	exports.TorusBufferGeometry = TorusBufferGeometry;
	exports.TextGeometry = TextGeometry;
	exports.TextBufferGeometry = TextBufferGeometry;
	exports.SphereGeometry = SphereGeometry;
	exports.SphereBufferGeometry = SphereBufferGeometry;
	exports.RingGeometry = RingGeometry;
	exports.RingBufferGeometry = RingBufferGeometry;
	exports.PlaneGeometry = PlaneGeometry;
	exports.PlaneBufferGeometry = PlaneBufferGeometry;
	exports.LatheGeometry = LatheGeometry;
	exports.LatheBufferGeometry = LatheBufferGeometry;
	exports.ShapeGeometry = ShapeGeometry;
	exports.ShapeBufferGeometry = ShapeBufferGeometry;
	exports.ExtrudeGeometry = ExtrudeGeometry;
	exports.ExtrudeBufferGeometry = ExtrudeBufferGeometry;
	exports.EdgesGeometry = EdgesGeometry;
	exports.ConeGeometry = ConeGeometry;
	exports.ConeBufferGeometry = ConeBufferGeometry;
	exports.CylinderGeometry = CylinderGeometry;
	exports.CylinderBufferGeometry = CylinderBufferGeometry;
	exports.CircleGeometry = CircleGeometry;
	exports.CircleBufferGeometry = CircleBufferGeometry;
	exports.BoxGeometry = BoxGeometry;
	exports.BoxBufferGeometry = BoxBufferGeometry;
	exports.ShadowMaterial = ShadowMaterial;
	exports.SpriteMaterial = SpriteMaterial;
	exports.RawShaderMaterial = RawShaderMaterial;
	exports.ShaderMaterial = ShaderMaterial;
	exports.PointsMaterial = PointsMaterial;
	exports.MeshPhysicalMaterial = MeshPhysicalMaterial;
	exports.MeshStandardMaterial = MeshStandardMaterial;
	exports.MeshPhongMaterial = MeshPhongMaterial;
	exports.MeshToonMaterial = MeshToonMaterial;
	exports.MeshNormalMaterial = MeshNormalMaterial;
	exports.MeshLambertMaterial = MeshLambertMaterial;
	exports.MeshDepthMaterial = MeshDepthMaterial;
	exports.MeshBasicMaterial = MeshBasicMaterial;
	exports.LineDashedMaterial = LineDashedMaterial;
	exports.LineBasicMaterial = LineBasicMaterial;
	exports.Material = Material;
	exports.Float64BufferAttribute = Float64BufferAttribute;
	exports.Float32BufferAttribute = Float32BufferAttribute;
	exports.Uint32BufferAttribute = Uint32BufferAttribute;
	exports.Int32BufferAttribute = Int32BufferAttribute;
	exports.Uint16BufferAttribute = Uint16BufferAttribute;
	exports.Int16BufferAttribute = Int16BufferAttribute;
	exports.Uint8ClampedBufferAttribute = Uint8ClampedBufferAttribute;
	exports.Uint8BufferAttribute = Uint8BufferAttribute;
	exports.Int8BufferAttribute = Int8BufferAttribute;
	exports.BufferAttribute = BufferAttribute;
	exports.REVISION = REVISION;
	exports.MOUSE = MOUSE;
	exports.CullFaceNone = CullFaceNone;
	exports.CullFaceBack = CullFaceBack;
	exports.CullFaceFront = CullFaceFront;
	exports.CullFaceFrontBack = CullFaceFrontBack;
	exports.FrontFaceDirectionCW = FrontFaceDirectionCW;
	exports.FrontFaceDirectionCCW = FrontFaceDirectionCCW;
	exports.BasicShadowMap = BasicShadowMap;
	exports.PCFShadowMap = PCFShadowMap;
	exports.PCFSoftShadowMap = PCFSoftShadowMap;
	exports.FrontSide = FrontSide;
	exports.BackSide = BackSide;
	exports.DoubleSide = DoubleSide;
	exports.FlatShading = FlatShading;
	exports.SmoothShading = SmoothShading;
	exports.NoColors = NoColors;
	exports.FaceColors = FaceColors;
	exports.VertexColors = VertexColors;
	exports.NoBlending = NoBlending;
	exports.NormalBlending = NormalBlending;
	exports.AdditiveBlending = AdditiveBlending;
	exports.SubtractiveBlending = SubtractiveBlending;
	exports.MultiplyBlending = MultiplyBlending;
	exports.CustomBlending = CustomBlending;
	exports.AddEquation = AddEquation;
	exports.SubtractEquation = SubtractEquation;
	exports.ReverseSubtractEquation = ReverseSubtractEquation;
	exports.MinEquation = MinEquation;
	exports.MaxEquation = MaxEquation;
	exports.ZeroFactor = ZeroFactor;
	exports.OneFactor = OneFactor;
	exports.SrcColorFactor = SrcColorFactor;
	exports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;
	exports.SrcAlphaFactor = SrcAlphaFactor;
	exports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;
	exports.DstAlphaFactor = DstAlphaFactor;
	exports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;
	exports.DstColorFactor = DstColorFactor;
	exports.OneMinusDstColorFactor = OneMinusDstColorFactor;
	exports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;
	exports.NeverDepth = NeverDepth;
	exports.AlwaysDepth = AlwaysDepth;
	exports.LessDepth = LessDepth;
	exports.LessEqualDepth = LessEqualDepth;
	exports.EqualDepth = EqualDepth;
	exports.GreaterEqualDepth = GreaterEqualDepth;
	exports.GreaterDepth = GreaterDepth;
	exports.NotEqualDepth = NotEqualDepth;
	exports.MultiplyOperation = MultiplyOperation;
	exports.MixOperation = MixOperation;
	exports.AddOperation = AddOperation;
	exports.NoToneMapping = NoToneMapping;
	exports.LinearToneMapping = LinearToneMapping;
	exports.ReinhardToneMapping = ReinhardToneMapping;
	exports.Uncharted2ToneMapping = Uncharted2ToneMapping;
	exports.CineonToneMapping = CineonToneMapping;
	exports.UVMapping = UVMapping;
	exports.CubeReflectionMapping = CubeReflectionMapping;
	exports.CubeRefractionMapping = CubeRefractionMapping;
	exports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;
	exports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;
	exports.SphericalReflectionMapping = SphericalReflectionMapping;
	exports.CubeUVReflectionMapping = CubeUVReflectionMapping;
	exports.CubeUVRefractionMapping = CubeUVRefractionMapping;
	exports.RepeatWrapping = RepeatWrapping;
	exports.ClampToEdgeWrapping = ClampToEdgeWrapping;
	exports.MirroredRepeatWrapping = MirroredRepeatWrapping;
	exports.NearestFilter = NearestFilter;
	exports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;
	exports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;
	exports.LinearFilter = LinearFilter;
	exports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;
	exports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;
	exports.UnsignedByteType = UnsignedByteType;
	exports.ByteType = ByteType;
	exports.ShortType = ShortType;
	exports.UnsignedShortType = UnsignedShortType;
	exports.IntType = IntType;
	exports.UnsignedIntType = UnsignedIntType;
	exports.FloatType = FloatType;
	exports.HalfFloatType = HalfFloatType;
	exports.UnsignedShort4444Type = UnsignedShort4444Type;
	exports.UnsignedShort5551Type = UnsignedShort5551Type;
	exports.UnsignedShort565Type = UnsignedShort565Type;
	exports.UnsignedInt248Type = UnsignedInt248Type;
	exports.AlphaFormat = AlphaFormat;
	exports.RGBFormat = RGBFormat;
	exports.RGBAFormat = RGBAFormat;
	exports.LuminanceFormat = LuminanceFormat;
	exports.LuminanceAlphaFormat = LuminanceAlphaFormat;
	exports.RGBEFormat = RGBEFormat;
	exports.DepthFormat = DepthFormat;
	exports.DepthStencilFormat = DepthStencilFormat;
	exports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;
	exports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;
	exports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;
	exports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;
	exports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;
	exports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;
	exports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;
	exports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;
	exports.RGB_ETC1_Format = RGB_ETC1_Format;
	exports.LoopOnce = LoopOnce;
	exports.LoopRepeat = LoopRepeat;
	exports.LoopPingPong = LoopPingPong;
	exports.InterpolateDiscrete = InterpolateDiscrete;
	exports.InterpolateLinear = InterpolateLinear;
	exports.InterpolateSmooth = InterpolateSmooth;
	exports.ZeroCurvatureEnding = ZeroCurvatureEnding;
	exports.ZeroSlopeEnding = ZeroSlopeEnding;
	exports.WrapAroundEnding = WrapAroundEnding;
	exports.TrianglesDrawMode = TrianglesDrawMode;
	exports.TriangleStripDrawMode = TriangleStripDrawMode;
	exports.TriangleFanDrawMode = TriangleFanDrawMode;
	exports.LinearEncoding = LinearEncoding;
	exports.sRGBEncoding = sRGBEncoding;
	exports.GammaEncoding = GammaEncoding;
	exports.RGBEEncoding = RGBEEncoding;
	exports.LogLuvEncoding = LogLuvEncoding;
	exports.RGBM7Encoding = RGBM7Encoding;
	exports.RGBM16Encoding = RGBM16Encoding;
	exports.RGBDEncoding = RGBDEncoding;
	exports.BasicDepthPacking = BasicDepthPacking;
	exports.RGBADepthPacking = RGBADepthPacking;
	exports.CubeGeometry = BoxGeometry;
	exports.Face4 = Face4;
	exports.LineStrip = LineStrip;
	exports.LinePieces = LinePieces;
	exports.MeshFaceMaterial = MeshFaceMaterial;
	exports.MultiMaterial = MultiMaterial;
	exports.PointCloud = PointCloud;
	exports.Particle = Particle;
	exports.ParticleSystem = ParticleSystem;
	exports.PointCloudMaterial = PointCloudMaterial;
	exports.ParticleBasicMaterial = ParticleBasicMaterial;
	exports.ParticleSystemMaterial = ParticleSystemMaterial;
	exports.Vertex = Vertex;
	exports.DynamicBufferAttribute = DynamicBufferAttribute;
	exports.Int8Attribute = Int8Attribute;
	exports.Uint8Attribute = Uint8Attribute;
	exports.Uint8ClampedAttribute = Uint8ClampedAttribute;
	exports.Int16Attribute = Int16Attribute;
	exports.Uint16Attribute = Uint16Attribute;
	exports.Int32Attribute = Int32Attribute;
	exports.Uint32Attribute = Uint32Attribute;
	exports.Float32Attribute = Float32Attribute;
	exports.Float64Attribute = Float64Attribute;
	exports.ClosedSplineCurve3 = ClosedSplineCurve3;
	exports.SplineCurve3 = SplineCurve3;
	exports.Spline = Spline;
	exports.BoundingBoxHelper = BoundingBoxHelper;
	exports.EdgesHelper = EdgesHelper;
	exports.WireframeHelper = WireframeHelper;
	exports.XHRLoader = XHRLoader;
	exports.BinaryTextureLoader = BinaryTextureLoader;
	exports.GeometryUtils = GeometryUtils;
	exports.ImageUtils = ImageUtils;
	exports.Projector = Projector;
	exports.CanvasRenderer = CanvasRenderer;

	Object.defineProperty(exports, '__esModule', { value: true });

})));

((function(){"use strict";var ARController=(function(width,height,camera){var id;var w=width,h=height;this.orientation="landscape";this.listeners={};if(typeof width!=="number"){var image=width;camera=height;w=image.videoWidth||image.width;h=image.videoHeight||image.height;this.image=image}this.defaultMarkerWidth=1;this.patternMarkers={};this.barcodeMarkers={};this.transform_mat=new Float32Array(16);this.canvas=document.createElement("canvas");this.canvas.width=w;this.canvas.height=h;this.ctx=this.canvas.getContext("2d");this.videoWidth=w;this.videoHeight=h;if(typeof camera==="string"){var self=this;this.cameraParam=new ARCameraParam(camera,(function(){self._initialize()}),(function(err){console.error("ARController: Failed to load ARCameraParam",err)}))}else{this.cameraParam=camera;this._initialize()}});ARController.prototype.dispose=(function(){artoolkit.teardown(this.id);for(var t in this){this[t]=null}});ARController.prototype.process=(function(image){this.detectMarker(image);var markerNum=this.getMarkerNum();var k,o;for(k in this.patternMarkers){o=this.patternMarkers[k];o.inPrevious=o.inCurrent;o.inCurrent=false}for(k in this.barcodeMarkers){o=this.barcodeMarkers[k];o.inPrevious=o.inCurrent;o.inCurrent=false}for(var i=0;i<markerNum;i++){var markerInfo=this.getMarker(i);var markerType=artoolkit.UNKNOWN_MARKER;var visible=this.trackPatternMarkerId(-1);if(markerInfo.idPatt>-1&&(markerInfo.id===markerInfo.idPatt||markerInfo.idMatrix===-1)){visible=this.trackPatternMarkerId(markerInfo.idPatt);markerType=artoolkit.PATTERN_MARKER;if(markerInfo.dir!==markerInfo.dirPatt){this.setMarkerInfoDir(i,markerInfo.dirPatt)}}else if(markerInfo.idMatrix>-1){visible=this.trackBarcodeMarkerId(markerInfo.idMatrix);markerType=artoolkit.BARCODE_MARKER;if(markerInfo.dir!==markerInfo.dirMatrix){this.setMarkerInfoDir(i,markerInfo.dirMatrix)}}if(markerType!==artoolkit.UNKNOWN_MARKER&&visible.inPrevious){this.getTransMatSquareCont(i,visible.markerWidth,visible.matrix,visible.matrix)}else{this.getTransMatSquare(i,visible.markerWidth,visible.matrix)}visible.inCurrent=true;this.transMatToGLMat(visible.matrix,this.transform_mat);this.dispatchEvent({name:"getMarker",target:this,data:{index:i,type:markerType,marker:markerInfo,matrix:this.transform_mat}})}var multiMarkerCount=this.getMultiMarkerCount();for(var i=0;i<multiMarkerCount;i++){var subMarkerCount=this.getMultiMarkerPatternCount(i);var visible=false;artoolkit.getTransMatMultiSquareRobust(this.id,i);this.transMatToGLMat(this.marker_transform_mat,this.transform_mat);for(var j=0;j<subMarkerCount;j++){var multiEachMarkerInfo=this.getMultiEachMarker(i,j);if(multiEachMarkerInfo.visible>=0){visible=true;this.dispatchEvent({name:"getMultiMarker",target:this,data:{multiMarkerId:i,matrix:this.transform_mat}});break}}if(visible){for(var j=0;j<subMarkerCount;j++){var multiEachMarkerInfo=this.getMultiEachMarker(i,j);this.transMatToGLMat(this.marker_transform_mat,this.transform_mat);this.dispatchEvent({name:"getMultiMarkerSub",target:this,data:{multiMarkerId:i,markerIndex:j,marker:multiEachMarkerInfo,matrix:this.transform_mat}})}}}if(this._bwpointer){this.debugDraw()}});ARController.prototype.trackPatternMarkerId=(function(id,markerWidth){var obj=this.patternMarkers[id];if(!obj){this.patternMarkers[id]=obj={inPrevious:false,inCurrent:false,matrix:new Float32Array(12),markerWidth:markerWidth||this.defaultMarkerWidth}}if(markerWidth){obj.markerWidth=markerWidth}return obj});ARController.prototype.trackBarcodeMarkerId=(function(id,markerWidth){var obj=this.barcodeMarkers[id];if(!obj){this.barcodeMarkers[id]=obj={inPrevious:false,inCurrent:false,matrix:new Float32Array(12),markerWidth:markerWidth||this.defaultMarkerWidth}}if(markerWidth){obj.markerWidth=markerWidth}return obj});ARController.prototype.getMultiMarkerCount=(function(){return artoolkit.getMultiMarkerCount(this.id)});ARController.prototype.getMultiMarkerPatternCount=(function(multiMarkerId){return artoolkit.getMultiMarkerNum(this.id,multiMarkerId)});ARController.prototype.addEventListener=(function(name,callback){if(!this.listeners[name]){this.listeners[name]=[]}this.listeners[name].push(callback)});ARController.prototype.removeEventListener=(function(name,callback){if(this.listeners[name]){var index=this.listeners[name].indexOf(callback);if(index>-1){this.listeners[name].splice(index,1)}}});ARController.prototype.dispatchEvent=(function(event){var listeners=this.listeners[event.name];if(listeners){for(var i=0;i<listeners.length;i++){listeners[i].call(this,event)}}});ARController.prototype.debugSetup=(function(){document.body.appendChild(this.canvas);this.setDebugMode(1);this._bwpointer=this.getProcessingImage()});ARController.prototype.loadMarker=(function(markerURL,onSuccess,onError){return artoolkit.addMarker(this.id,markerURL,onSuccess,onError)});ARController.prototype.loadMultiMarker=(function(markerURL,onSuccess,onError){return artoolkit.addMultiMarker(this.id,markerURL,onSuccess,onError)});ARController.prototype.getTransMatSquare=(function(markerIndex,markerWidth,dst){artoolkit.getTransMatSquare(this.id,markerIndex,markerWidth);dst.set(this.marker_transform_mat);return dst});ARController.prototype.getTransMatSquareCont=(function(markerIndex,markerWidth,previousMarkerTransform,dst){this.marker_transform_mat.set(previousMarkerTransform);artoolkit.getTransMatSquareCont(this.id,markerIndex,markerWidth);dst.set(this.marker_transform_mat);return dst});ARController.prototype.getTransMatMultiSquare=(function(multiMarkerId,dst){artoolkit.getTransMatMultiSquare(this.id,multiMarkerId);dst.set(this.marker_transform_mat);return dst});ARController.prototype.getTransMatMultiSquareRobust=(function(multiMarkerId,dst){artoolkit.getTransMatMultiSquare(this.id,multiMarkerId);dst.set(this.marker_transform_mat);return dst});ARController.prototype.transMatToGLMat=(function(transMat,glMat,scale){glMat[0+0*4]=transMat[0];glMat[0+1*4]=transMat[1];glMat[0+2*4]=transMat[2];glMat[0+3*4]=transMat[3];glMat[1+0*4]=transMat[4];glMat[1+1*4]=transMat[5];glMat[1+2*4]=transMat[6];glMat[1+3*4]=transMat[7];glMat[2+0*4]=transMat[8];glMat[2+1*4]=transMat[9];glMat[2+2*4]=transMat[10];glMat[2+3*4]=transMat[11];glMat[3+0*4]=0;glMat[3+1*4]=0;glMat[3+2*4]=0;glMat[3+3*4]=1;if(scale!=undefined&&scale!==0){glMat[12]*=scale;glMat[13]*=scale;glMat[14]*=scale}return glMat});ARController.prototype.detectMarker=(function(image){if(this._copyImageToHeap(image)){return artoolkit.detectMarker(this.id)}return-99});ARController.prototype.getMarkerNum=(function(){return artoolkit.getMarkerNum(this.id)});ARController.prototype.getMarker=(function(markerIndex){if(0===artoolkit.getMarker(this.id,markerIndex)){return artoolkit.markerInfo}});ARController.prototype.setMarkerInfoVertex=(function(markerIndex,vertexData){for(var i=0;i<vertexData.length;i++){this.marker_transform_mat[i*2+0]=vertexData[i][0];this.marker_transform_mat[i*2+1]=vertexData[i][1]}return artoolkit.setMarkerInfoVertex(this.id,markerIndex)});ARController.prototype.cloneMarkerInfo=(function(markerInfo){return JSON.parse(JSON.stringify(markerInfo))});ARController.prototype.getMultiEachMarker=(function(multiMarkerId,markerIndex){if(0===artoolkit.getMultiEachMarker(this.id,multiMarkerId,markerIndex)){return artoolkit.multiEachMarkerInfo}});ARController.prototype.getTransformationMatrix=(function(){return this.transform_mat});ARController.prototype.getCameraMatrix=(function(){return this.camera_mat});ARController.prototype.getMarkerTransformationMatrix=(function(){return this.marker_transform_mat});ARController.prototype.setDebugMode=(function(mode){return artoolkit.setDebugMode(this.id,mode)});ARController.prototype.getDebugMode=(function(){return artoolkit.getDebugMode(this.id)});ARController.prototype.getProcessingImage=(function(){return artoolkit.getProcessingImage(this.id)});ARController.prototype.setLogLevel=(function(mode){return artoolkit.setLogLevel(mode)});ARController.prototype.getLogLevel=(function(){return artoolkit.getLogLevel()});ARController.prototype.setMarkerInfoDir=(function(markerIndex,dir){return artoolkit.setMarkerInfoDir(this.id,markerIndex,dir)});ARController.prototype.setProjectionNearPlane=(function(value){return artoolkit.setProjectionNearPlane(this.id,value)});ARController.prototype.getProjectionNearPlane=(function(){return artoolkit.getProjectionNearPlane(this.id)});ARController.prototype.setProjectionFarPlane=(function(value){return artoolkit.setProjectionFarPlane(this.id,value)});ARController.prototype.getProjectionFarPlane=(function(){return artoolkit.getProjectionFarPlane(this.id)});ARController.prototype.setThresholdMode=(function(mode){return artoolkit.setThresholdMode(this.id,mode)});ARController.prototype.getThresholdMode=(function(){return artoolkit.getThresholdMode(this.id)});ARController.prototype.setThreshold=(function(threshold){return artoolkit.setThreshold(this.id,threshold)});ARController.prototype.getThreshold=(function(){return artoolkit.getThreshold(this.id)});ARController.prototype.setPatternDetectionMode=(function(value){return artoolkit.setPatternDetectionMode(this.id,value)});ARController.prototype.getPatternDetectionMode=(function(){return artoolkit.getPatternDetectionMode(this.id)});ARController.prototype.setMatrixCodeType=(function(value){return artoolkit.setMatrixCodeType(this.id,value)});ARController.prototype.getMatrixCodeType=(function(){return artoolkit.getMatrixCodeType(this.id)});ARController.prototype.setLabelingMode=(function(value){return artoolkit.setLabelingMode(this.id,value)});ARController.prototype.getLabelingMode=(function(){return artoolkit.getLabelingMode(this.id)});ARController.prototype.setPattRatio=(function(value){return artoolkit.setPattRatio(this.id,value)});ARController.prototype.getPattRatio=(function(){return artoolkit.getPattRatio(this.id)});ARController.prototype.setImageProcMode=(function(value){return artoolkit.setImageProcMode(this.id,value)});ARController.prototype.getImageProcMode=(function(){return artoolkit.getImageProcMode(this.id)});ARController.prototype.debugDraw=(function(){var debugBuffer=new Uint8ClampedArray(Module.HEAPU8.buffer,this._bwpointer,this.framesize);var id=new ImageData(debugBuffer,this.canvas.width,this.canvas.height);this.ctx.putImageData(id,0,0);var marker_num=this.getMarkerNum();for(var i=0;i<marker_num;i++){this._debugMarker(this.getMarker(i))}});ARController.prototype._initialize=(function(){this.id=artoolkit.setup(this.canvas.width,this.canvas.height,this.cameraParam.id);var params=artoolkit.frameMalloc;this.framepointer=params.framepointer;this.framesize=params.framesize;this.dataHeap=new Uint8Array(Module.HEAPU8.buffer,this.framepointer,this.framesize);this.camera_mat=new Float64Array(Module.HEAPU8.buffer,params.camera,16);this.marker_transform_mat=new Float64Array(Module.HEAPU8.buffer,params.transform,12);this.setProjectionNearPlane(.1);this.setProjectionFarPlane(1e3);var self=this;setTimeout((function(){if(self.onload){self.onload()}self.dispatchEvent({name:"load",target:self})}),1)});ARController.prototype._copyImageToHeap=(function(image){if(!image){image=this.image}this.ctx.save();if(this.orientation==="portrait"){this.ctx.translate(this.canvas.width,0);this.ctx.rotate(Math.PI/2);this.ctx.drawImage(image,0,0,this.canvas.height,this.canvas.width)}else{this.ctx.drawImage(image,0,0,this.canvas.width,this.canvas.height)}this.ctx.restore();var imageData=this.ctx.getImageData(0,0,this.canvas.width,this.canvas.height);var data=imageData.data;if(this.dataHeap){this.dataHeap.set(data);return true}return false});ARController.prototype._debugMarker=(function(marker){var vertex,pos;vertex=marker.vertex;var ctx=this.ctx;ctx.strokeStyle="red";ctx.beginPath();ctx.moveTo(vertex[0][0],vertex[0][1]);ctx.lineTo(vertex[1][0],vertex[1][1]);ctx.stroke();ctx.beginPath();ctx.moveTo(vertex[2][0],vertex[2][1]);ctx.lineTo(vertex[3][0],vertex[3][1]);ctx.stroke();ctx.strokeStyle="green";ctx.beginPath();ctx.lineTo(vertex[1][0],vertex[1][1]);ctx.lineTo(vertex[2][0],vertex[2][1]);ctx.stroke();ctx.beginPath();ctx.moveTo(vertex[3][0],vertex[3][1]);ctx.lineTo(vertex[0][0],vertex[0][1]);ctx.stroke();pos=marker.pos;ctx.beginPath();ctx.arc(pos[0],pos[1],8,0,Math.PI*2);ctx.fillStyle="red";ctx.fill()});ARController.getUserMedia=(function(configuration){var facing=configuration.facingMode||"environment";var onSuccess=configuration.onSuccess;var onError=configuration.onError||(function(err){console.error("ARController.getUserMedia",err)});var video=document.createElement("video");var initProgress=(function(){if(this.videoWidth!==0){onSuccess(video)}});var readyToPlay=false;var eventNames=["touchstart","touchend","touchmove","touchcancel","click","mousedown","mouseup","mousemove","keydown","keyup","keypress","scroll"];var play=(function(ev){if(readyToPlay){video.play();if(!video.paused){eventNames.forEach((function(eventName){window.removeEventListener(eventName,play,true)}))}}});eventNames.forEach((function(eventName){window.addEventListener(eventName,play,true)}));var success=(function(stream){video.addEventListener("loadedmetadata",initProgress,false);video.src=window.URL.createObjectURL(stream);readyToPlay=true;play()});var constraints={};var mediaDevicesConstraints={};if(configuration.width){mediaDevicesConstraints.width=configuration.width;if(typeof configuration.width==="object"){if(configuration.width.max){constraints.maxWidth=configuration.width.max}if(configuration.width.min){constraints.minWidth=configuration.width.max}}else{constraints.maxWidth=configuration.width}}if(configuration.height){mediaDevicesConstraints.height=configuration.height;if(typeof configuration.height==="object"){if(configuration.height.max){constraints.maxHeight=configuration.height.max}if(configuration.height.min){constraints.minHeight=configuration.height.max}}else{constraints.maxHeight=configuration.height}}mediaDevicesConstraints.facingMode=facing;navigator.getUserMedia=navigator.getUserMedia||navigator.webkitGetUserMedia||navigator.mozGetUserMedia||navigator.msGetUserMedia;var hdConstraints={audio:false,video:{mandatory:constraints}};if(false){if(navigator.mediaDevices){navigator.mediaDevices.getUserMedia({audio:false,video:mediaDevicesConstraints}).then(success,onError)}else{MediaStreamTrack.getSources((function(sources){var facingDir=mediaDevicesConstraints.facingMode;if(facing&&facing.exact){facingDir=facing.exact}for(var i=0;i<sources.length;i++){if(sources[i].kind==="video"&&sources[i].facing===facingDir){hdConstraints.video.mandatory.sourceId=sources[i].id;break}}if(facing&&facing.exact&&!hdConstraints.video.mandatory.sourceId){onError("Failed to get camera facing the wanted direction")}else{if(navigator.getUserMedia){navigator.getUserMedia(hdConstraints,success,onError)}else{onError("navigator.getUserMedia is not supported on your browser")}}}))}}else{if(navigator.getUserMedia){navigator.getUserMedia(hdConstraints,success,onError)}else{onError("navigator.getUserMedia is not supported on your browser")}}return video});ARController.getUserMediaARController=(function(configuration){var obj={};for(var i in configuration){obj[i]=configuration[i]}var onSuccess=configuration.onSuccess;var cameraParamURL=configuration.cameraParam;obj.onSuccess=(function(){new ARCameraParam(cameraParamURL,(function(){var arCameraParam=this;var maxSize=configuration.maxARVideoSize||Math.max(video.videoWidth,video.videoHeight);var f=maxSize/Math.max(video.videoWidth,video.videoHeight);var w=f*video.videoWidth;var h=f*video.videoHeight;if(video.videoWidth<video.videoHeight){var tmp=w;w=h;h=tmp}var arController=new ARController(w,h,arCameraParam);arController.image=video;if(video.videoWidth<video.videoHeight){arController.orientation="portrait";arController.videoWidth=video.videoHeight;arController.videoHeight=video.videoWidth}else{arController.orientation="landscape";arController.videoWidth=video.videoWidth;arController.videoHeight=video.videoHeight}onSuccess(arController,arCameraParam)}),(function(err){console.error("ARController: Failed to load ARCameraParam",err)}))});var video=this.getUserMedia(obj);return video});var ARCameraParam=(function(src,onload,onerror){this.id=-1;this._src="";this.complete=false;this.onload=onload;this.onerror=onerror;if(src){this.load(src)}});ARCameraParam.prototype.load=(function(src){if(this._src!==""){throw"ARCameraParam: Trying to load camera parameters twice."}this._src=src;if(src){var self=this;artoolkit.loadCamera(src,(function(id){self.id=id;self.complete=true;self.onload()}),(function(err){self.onerror(err)}))}});Object.defineProperty(ARCameraParam.prototype,"src",{set:(function(src){this.load(src)}),get:(function(){return this._src})});ARCameraParam.prototype.dispose=(function(){if(this.id!==-1){artoolkit.deleteCamera(this.id)}this.id=-1;this._src="";this.complete=false});var artoolkit={UNKNOWN_MARKER:-1,PATTERN_MARKER:0,BARCODE_MARKER:1,loadCamera:loadCamera,addMarker:addMarker,addMultiMarker:addMultiMarker};var FUNCTIONS=["setup","teardown","setLogLevel","getLogLevel","setDebugMode","getDebugMode","getProcessingImage","setMarkerInfoDir","setMarkerInfoVertex","getTransMatSquare","getTransMatSquareCont","getTransMatMultiSquare","getTransMatMultiSquareRobust","getMultiMarkerNum","getMultiMarkerCount","detectMarker","getMarkerNum","getMarker","getMultiEachMarker","setProjectionNearPlane","getProjectionNearPlane","setProjectionFarPlane","getProjectionFarPlane","setThresholdMode","getThresholdMode","setThreshold","getThreshold","setPatternDetectionMode","getPatternDetectionMode","setMatrixCodeType","getMatrixCodeType","setLabelingMode","getLabelingMode","setPattRatio","getPattRatio","setImageProcMode","getImageProcMode"];function runWhenLoaded(){FUNCTIONS.forEach((function(n){artoolkit[n]=Module[n]}));for(var m in Module){if(m.match(/^AR/))artoolkit[m]=Module[m]}}var marker_count=0;function addMarker(arId,url,callback){var filename="/marker_"+marker_count++;ajax(url,filename,(function(){var id=Module._addMarker(arId,filename);if(callback)callback(id)}))}function bytesToString(array){return String.fromCharCode.apply(String,array)}function parseMultiFile(bytes){var str=bytesToString(bytes);var lines=str.split("\n");var files=[];var state=0;var markers=0;lines.forEach((function(line){line=line.trim();if(!line||line.startsWith("#"))return;switch(state){case 0:markers=+line;state=1;return;case 1:if(!line.match(/^\d+$/)){files.push(line)};case 2:case 3:case 4:state++;return;case 5:state=1;return}}));return files}var multi_marker_count=0;function addMultiMarker(arId,url,callback){var filename="/multi_marker_"+multi_marker_count++;ajax(url,filename,(function(bytes){var files=parseMultiFile(bytes);function ok(){var markerID=Module._addMultiMarker(arId,filename);var markerNum=Module.getMultiMarkerNum(arId,markerID);if(callback)callback(markerID,markerNum)}if(!files.length)return ok();var path=url.split("/").slice(0,-1).join("/");files=files.map((function(file){return[path+"/"+file,file]}));ajaxDependencies(files,ok)}))}var camera_count=0;function loadCamera(url,callback){var filename="/camera_param_"+camera_count++;var writeCallback=(function(){var id=Module._loadCamera(filename);if(callback)callback(id)});if(typeof url==="object"){writeByteArrayToFS(filename,url,writeCallback)}else if(url.indexOf("\n")>-1){writeStringToFS(filename,url,writeCallback)}else{ajax(url,filename,writeCallback)}}function writeStringToFS(target,string,callback){var byteArray=new Uint8Array(string.length);for(var i=0;i<byteArray.length;i++){byteArray[i]=string.charCodeAt(i)&255}writeByteArrayToFS(target,byteArray,callback)}function writeByteArrayToFS(target,byteArray,callback){FS.writeFile(target,byteArray,{encoding:"binary"});callback(byteArray)}function ajax(url,target,callback){var oReq=new XMLHttpRequest;oReq.open("GET",url,true);oReq.responseType="arraybuffer";oReq.onload=(function(oEvent){var arrayBuffer=oReq.response;var byteArray=new Uint8Array(arrayBuffer);writeByteArrayToFS(target,byteArray,callback)});oReq.send()}function ajaxDependencies(files,callback){var next=files.pop();if(next){ajax(next[0],next[1],(function(){ajaxDependencies(files,callback)}))}else{callback()}}window.artoolkit=artoolkit;window.ARController=ARController;window.ARCameraParam=ARCameraParam;if(window.Module){runWhenLoaded()}else{window.Module={onRuntimeInitialized:(function(){runWhenLoaded()})}}}))();var Module;if(!Module)Module=(typeof Module!=="undefined"?Module:null)||{};var moduleOverrides={};for(var key in Module){if(Module.hasOwnProperty(key)){moduleOverrides[key]=Module[key]}}var ENVIRONMENT_IS_WEB=typeof window==="object";var ENVIRONMENT_IS_WORKER=typeof importScripts==="function";var ENVIRONMENT_IS_NODE=typeof process==="object"&&typeof require==="function"&&!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_WORKER;var ENVIRONMENT_IS_SHELL=!ENVIRONMENT_IS_WEB&&!ENVIRONMENT_IS_NODE&&!ENVIRONMENT_IS_WORKER;if(ENVIRONMENT_IS_NODE){if(!Module["print"])Module["print"]=function print(x){process["stdout"].write(x+"\n")};if(!Module["printErr"])Module["printErr"]=function printErr(x){process["stderr"].write(x+"\n")};var nodeFS=require("fs");var nodePath=require("path");Module["read"]=function read(filename,binary){filename=nodePath["normalize"](filename);var ret=nodeFS["readFileSync"](filename);if(!ret&&filename!=nodePath["resolve"](filename)){filename=path.join(__dirname,"..","src",filename);ret=nodeFS["readFileSync"](filename)}if(ret&&!binary)ret=ret.toString();return ret};Module["readBinary"]=function readBinary(filename){var ret=Module["read"](filename,true);if(!ret.buffer){ret=new Uint8Array(ret)}assert(ret.buffer);return ret};Module["load"]=function load(f){globalEval(read(f))};if(!Module["thisProgram"]){if(process["argv"].length>1){Module["thisProgram"]=process["argv"][1].replace(/\\/g,"/")}else{Module["thisProgram"]="unknown-program"}}Module["arguments"]=process["argv"].slice(2);if(typeof module!=="undefined"){module["exports"]=Module}process["on"]("uncaughtException",(function(ex){if(!(ex instanceof ExitStatus)){throw ex}}));Module["inspect"]=(function(){return"[Emscripten Module object]"})}else if(ENVIRONMENT_IS_SHELL){if(!Module["print"])Module["print"]=print;if(typeof printErr!="undefined")Module["printErr"]=printErr;if(typeof read!="undefined"){Module["read"]=read}else{Module["read"]=function read(){throw"no read() available (jsc?)"}}Module["readBinary"]=function readBinary(f){if(typeof readbuffer==="function"){return new Uint8Array(readbuffer(f))}var data=read(f,"binary");assert(typeof data==="object");return data};if(typeof scriptArgs!="undefined"){Module["arguments"]=scriptArgs}else if(typeof arguments!="undefined"){Module["arguments"]=arguments}}else if(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER){Module["read"]=function read(url){var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.send(null);return xhr.responseText};if(typeof arguments!="undefined"){Module["arguments"]=arguments}if(typeof console!=="undefined"){if(!Module["print"])Module["print"]=function print(x){console.log(x)};if(!Module["printErr"])Module["printErr"]=function printErr(x){console.log(x)}}else{var TRY_USE_DUMP=false;if(!Module["print"])Module["print"]=TRY_USE_DUMP&&typeof dump!=="undefined"?(function(x){dump(x)}):(function(x){})}if(ENVIRONMENT_IS_WORKER){Module["load"]=importScripts}if(typeof Module["setWindowTitle"]==="undefined"){Module["setWindowTitle"]=(function(title){document.title=title})}}else{throw"Unknown runtime environment. Where are we?"}function globalEval(x){eval.call(null,x)}if(!Module["load"]&&Module["read"]){Module["load"]=function load(f){globalEval(Module["read"](f))}}if(!Module["print"]){Module["print"]=(function(){})}if(!Module["printErr"]){Module["printErr"]=Module["print"]}if(!Module["arguments"]){Module["arguments"]=[]}if(!Module["thisProgram"]){Module["thisProgram"]="./this.program"}Module.print=Module["print"];Module.printErr=Module["printErr"];Module["preRun"]=[];Module["postRun"]=[];for(var key in moduleOverrides){if(moduleOverrides.hasOwnProperty(key)){Module[key]=moduleOverrides[key]}}var Runtime={setTempRet0:(function(value){tempRet0=value}),getTempRet0:(function(){return tempRet0}),stackSave:(function(){return STACKTOP}),stackRestore:(function(stackTop){STACKTOP=stackTop}),getNativeTypeSize:(function(type){switch(type){case"i1":case"i8":return 1;case"i16":return 2;case"i32":return 4;case"i64":return 8;case"float":return 4;case"double":return 8;default:{if(type[type.length-1]==="*"){return Runtime.QUANTUM_SIZE}else if(type[0]==="i"){var bits=parseInt(type.substr(1));assert(bits%8===0);return bits/8}else{return 0}}}}),getNativeFieldSize:(function(type){return Math.max(Runtime.getNativeTypeSize(type),Runtime.QUANTUM_SIZE)}),STACK_ALIGN:16,prepVararg:(function(ptr,type){if(type==="double"||type==="i64"){if(ptr&7){assert((ptr&7)===4);ptr+=4}}else{assert((ptr&3)===0)}return ptr}),getAlignSize:(function(type,size,vararg){if(!vararg&&(type=="i64"||type=="double"))return 8;if(!type)return Math.min(size,8);return Math.min(size||(type?Runtime.getNativeFieldSize(type):0),Runtime.QUANTUM_SIZE)}),dynCall:(function(sig,ptr,args){if(args&&args.length){if(!args.splice)args=Array.prototype.slice.call(args);args.splice(0,0,ptr);return Module["dynCall_"+sig].apply(null,args)}else{return Module["dynCall_"+sig].call(null,ptr)}}),functionPointers:[],addFunction:(function(func){for(var i=0;i<Runtime.functionPointers.length;i++){if(!Runtime.functionPointers[i]){Runtime.functionPointers[i]=func;return 2*(1+i)}}throw"Finished up all reserved function pointers. Use a higher value for RESERVED_FUNCTION_POINTERS."}),removeFunction:(function(index){Runtime.functionPointers[(index-2)/2]=null}),warnOnce:(function(text){if(!Runtime.warnOnce.shown)Runtime.warnOnce.shown={};if(!Runtime.warnOnce.shown[text]){Runtime.warnOnce.shown[text]=1;Module.printErr(text)}}),funcWrappers:{},getFuncWrapper:(function(func,sig){assert(sig);if(!Runtime.funcWrappers[sig]){Runtime.funcWrappers[sig]={}}var sigCache=Runtime.funcWrappers[sig];if(!sigCache[func]){sigCache[func]=function dynCall_wrapper(){return Runtime.dynCall(sig,func,arguments)}}return sigCache[func]}),getCompilerSetting:(function(name){throw"You must build with -s RETAIN_COMPILER_SETTINGS=1 for Runtime.getCompilerSetting or emscripten_get_compiler_setting to work"}),stackAlloc:(function(size){var ret=STACKTOP;STACKTOP=STACKTOP+size|0;STACKTOP=STACKTOP+15&-16;return ret}),staticAlloc:(function(size){var ret=STATICTOP;STATICTOP=STATICTOP+size|0;STATICTOP=STATICTOP+15&-16;return ret}),dynamicAlloc:(function(size){var ret=DYNAMICTOP;DYNAMICTOP=DYNAMICTOP+size|0;DYNAMICTOP=DYNAMICTOP+15&-16;if(DYNAMICTOP>=TOTAL_MEMORY){var success=enlargeMemory();if(!success){DYNAMICTOP=ret;return 0}}return ret}),alignMemory:(function(size,quantum){var ret=size=Math.ceil(size/(quantum?quantum:16))*(quantum?quantum:16);return ret}),makeBigInt:(function(low,high,unsigned){var ret=unsigned?+(low>>>0)+ +(high>>>0)*+4294967296:+(low>>>0)+ +(high|0)*+4294967296;return ret}),GLOBAL_BASE:8,QUANTUM_SIZE:4,__dummy__:0};Module["Runtime"]=Runtime;var __THREW__=0;var ABORT=false;var EXITSTATUS=0;var undef=0;var tempValue,tempInt,tempBigInt,tempInt2,tempBigInt2,tempPair,tempBigIntI,tempBigIntR,tempBigIntS,tempBigIntP,tempBigIntD,tempDouble,tempFloat;var tempI64,tempI64b;var tempRet0,tempRet1,tempRet2,tempRet3,tempRet4,tempRet5,tempRet6,tempRet7,tempRet8,tempRet9;function assert(condition,text){if(!condition){abort("Assertion failed: "+text)}}var globalScope=this;function getCFunc(ident){var func=Module["_"+ident];if(!func){try{func=eval("_"+ident)}catch(e){}}assert(func,"Cannot call unknown function "+ident+" (perhaps LLVM optimizations or closure removed it?)");return func}var cwrap,ccall;((function(){var JSfuncs={"stackSave":(function(){Runtime.stackSave()}),"stackRestore":(function(){Runtime.stackRestore()}),"arrayToC":(function(arr){var ret=Runtime.stackAlloc(arr.length);writeArrayToMemory(arr,ret);return ret}),"stringToC":(function(str){var ret=0;if(str!==null&&str!==undefined&&str!==0){ret=Runtime.stackAlloc((str.length<<2)+1);writeStringToMemory(str,ret)}return ret})};var toC={"string":JSfuncs["stringToC"],"array":JSfuncs["arrayToC"]};ccall=function ccallFunc(ident,returnType,argTypes,args,opts){var func=getCFunc(ident);var cArgs=[];var stack=0;if(args){for(var i=0;i<args.length;i++){var converter=toC[argTypes[i]];if(converter){if(stack===0)stack=Runtime.stackSave();cArgs[i]=converter(args[i])}else{cArgs[i]=args[i]}}}var ret=func.apply(null,cArgs);if(returnType==="string")ret=Pointer_stringify(ret);if(stack!==0){if(opts&&opts.async){EmterpreterAsync.asyncFinalizers.push((function(){Runtime.stackRestore(stack)}));return}Runtime.stackRestore(stack)}return ret};var sourceRegex=/^function\s*\(([^)]*)\)\s*{\s*([^*]*?)[\s;]*(?:return\s*(.*?)[;\s]*)?}$/;function parseJSFunc(jsfunc){var parsed=jsfunc.toString().match(sourceRegex).slice(1);return{arguments:parsed[0],body:parsed[1],returnValue:parsed[2]}}var JSsource={};for(var fun in JSfuncs){if(JSfuncs.hasOwnProperty(fun)){JSsource[fun]=parseJSFunc(JSfuncs[fun])}}cwrap=function cwrap(ident,returnType,argTypes){argTypes=argTypes||[];var cfunc=getCFunc(ident);var numericArgs=argTypes.every((function(type){return type==="number"}));var numericRet=returnType!=="string";if(numericRet&&numericArgs){return cfunc}var argNames=argTypes.map((function(x,i){return"$"+i}));var funcstr="(function("+argNames.join(",")+") {";var nargs=argTypes.length;if(!numericArgs){funcstr+="var stack = "+JSsource["stackSave"].body+";";for(var i=0;i<nargs;i++){var arg=argNames[i],type=argTypes[i];if(type==="number")continue;var convertCode=JSsource[type+"ToC"];funcstr+="var "+convertCode.arguments+" = "+arg+";";funcstr+=convertCode.body+";";funcstr+=arg+"="+convertCode.returnValue+";"}}var cfuncname=parseJSFunc((function(){return cfunc})).returnValue;funcstr+="var ret = "+cfuncname+"("+argNames.join(",")+");";if(!numericRet){var strgfy=parseJSFunc((function(){return Pointer_stringify})).returnValue;funcstr+="ret = "+strgfy+"(ret);"}if(!numericArgs){funcstr+=JSsource["stackRestore"].body.replace("()","(stack)")+";"}funcstr+="return ret})";return eval(funcstr)}}))();Module["ccall"]=ccall;Module["cwrap"]=cwrap;function setValue(ptr,value,type,noSafe){type=type||"i8";if(type.charAt(type.length-1)==="*")type="i32";switch(type){case"i1":HEAP8[ptr>>0]=value;break;case"i8":HEAP8[ptr>>0]=value;break;case"i16":HEAP16[ptr>>1]=value;break;case"i32":HEAP32[ptr>>2]=value;break;case"i64":tempI64=[value>>>0,(tempDouble=value,+Math_abs(tempDouble)>=+1?tempDouble>+0?(Math_min(+Math_floor(tempDouble/+4294967296),+4294967295)|0)>>>0:~~+Math_ceil((tempDouble- +(~~tempDouble>>>0))/+4294967296)>>>0:0)],HEAP32[ptr>>2]=tempI64[0],HEAP32[ptr+4>>2]=tempI64[1];break;case"float":HEAPF32[ptr>>2]=value;break;case"double":HEAPF64[ptr>>3]=value;break;default:abort("invalid type for setValue: "+type)}}Module["setValue"]=setValue;function getValue(ptr,type,noSafe){type=type||"i8";if(type.charAt(type.length-1)==="*")type="i32";switch(type){case"i1":return HEAP8[ptr>>0];case"i8":return HEAP8[ptr>>0];case"i16":return HEAP16[ptr>>1];case"i32":return HEAP32[ptr>>2];case"i64":return HEAP32[ptr>>2];case"float":return HEAPF32[ptr>>2];case"double":return HEAPF64[ptr>>3];default:abort("invalid type for setValue: "+type)}return null}Module["getValue"]=getValue;var ALLOC_NORMAL=0;var ALLOC_STACK=1;var ALLOC_STATIC=2;var ALLOC_DYNAMIC=3;var ALLOC_NONE=4;Module["ALLOC_NORMAL"]=ALLOC_NORMAL;Module["ALLOC_STACK"]=ALLOC_STACK;Module["ALLOC_STATIC"]=ALLOC_STATIC;Module["ALLOC_DYNAMIC"]=ALLOC_DYNAMIC;Module["ALLOC_NONE"]=ALLOC_NONE;function allocate(slab,types,allocator,ptr){var zeroinit,size;if(typeof slab==="number"){zeroinit=true;size=slab}else{zeroinit=false;size=slab.length}var singleType=typeof types==="string"?types:null;var ret;if(allocator==ALLOC_NONE){ret=ptr}else{ret=[_malloc,Runtime.stackAlloc,Runtime.staticAlloc,Runtime.dynamicAlloc][allocator===undefined?ALLOC_STATIC:allocator](Math.max(size,singleType?1:types.length))}if(zeroinit){var ptr=ret,stop;assert((ret&3)==0);stop=ret+(size&~3);for(;ptr<stop;ptr+=4){HEAP32[ptr>>2]=0}stop=ret+size;while(ptr<stop){HEAP8[ptr++>>0]=0}return ret}if(singleType==="i8"){if(slab.subarray||slab.slice){HEAPU8.set(slab,ret)}else{HEAPU8.set(new Uint8Array(slab),ret)}return ret}var i=0,type,typeSize,previousType;while(i<size){var curr=slab[i];if(typeof curr==="function"){curr=Runtime.getFunctionIndex(curr)}type=singleType||types[i];if(type===0){i++;continue}if(type=="i64")type="i32";setValue(ret+i,curr,type);if(previousType!==type){typeSize=Runtime.getNativeTypeSize(type);previousType=type}i+=typeSize}return ret}Module["allocate"]=allocate;function getMemory(size){if(!staticSealed)return Runtime.staticAlloc(size);if(typeof _sbrk!=="undefined"&&!_sbrk.called||!runtimeInitialized)return Runtime.dynamicAlloc(size);return _malloc(size)}Module["getMemory"]=getMemory;function Pointer_stringify(ptr,length){if(length===0||!ptr)return"";var hasUtf=0;var t;var i=0;while(1){t=HEAPU8[ptr+i>>0];hasUtf|=t;if(t==0&&!length)break;i++;if(length&&i==length)break}if(!length)length=i;var ret="";if(hasUtf<128){var MAX_CHUNK=1024;var curr;while(length>0){curr=String.fromCharCode.apply(String,HEAPU8.subarray(ptr,ptr+Math.min(length,MAX_CHUNK)));ret=ret?ret+curr:curr;ptr+=MAX_CHUNK;length-=MAX_CHUNK}return ret}return Module["UTF8ToString"](ptr)}Module["Pointer_stringify"]=Pointer_stringify;function AsciiToString(ptr){var str="";while(1){var ch=HEAP8[ptr++>>0];if(!ch)return str;str+=String.fromCharCode(ch)}}Module["AsciiToString"]=AsciiToString;function stringToAscii(str,outPtr){return writeAsciiToMemory(str,outPtr,false)}Module["stringToAscii"]=stringToAscii;function UTF8ArrayToString(u8Array,idx){var u0,u1,u2,u3,u4,u5;var str="";while(1){u0=u8Array[idx++];if(!u0)return str;if(!(u0&128)){str+=String.fromCharCode(u0);continue}u1=u8Array[idx++]&63;if((u0&224)==192){str+=String.fromCharCode((u0&31)<<6|u1);continue}u2=u8Array[idx++]&63;if((u0&240)==224){u0=(u0&15)<<12|u1<<6|u2}else{u3=u8Array[idx++]&63;if((u0&248)==240){u0=(u0&7)<<18|u1<<12|u2<<6|u3}else{u4=u8Array[idx++]&63;if((u0&252)==248){u0=(u0&3)<<24|u1<<18|u2<<12|u3<<6|u4}else{u5=u8Array[idx++]&63;u0=(u0&1)<<30|u1<<24|u2<<18|u3<<12|u4<<6|u5}}}if(u0<65536){str+=String.fromCharCode(u0)}else{var ch=u0-65536;str+=String.fromCharCode(55296|ch>>10,56320|ch&1023)}}}Module["UTF8ArrayToString"]=UTF8ArrayToString;function UTF8ToString(ptr){return UTF8ArrayToString(HEAPU8,ptr)}Module["UTF8ToString"]=UTF8ToString;function stringToUTF8Array(str,outU8Array,outIdx,maxBytesToWrite){if(!(maxBytesToWrite>0))return 0;var startIdx=outIdx;var endIdx=outIdx+maxBytesToWrite-1;for(var i=0;i<str.length;++i){var u=str.charCodeAt(i);if(u>=55296&&u<=57343)u=65536+((u&1023)<<10)|str.charCodeAt(++i)&1023;if(u<=127){if(outIdx>=endIdx)break;outU8Array[outIdx++]=u}else if(u<=2047){if(outIdx+1>=endIdx)break;outU8Array[outIdx++]=192|u>>6;outU8Array[outIdx++]=128|u&63}else if(u<=65535){if(outIdx+2>=endIdx)break;outU8Array[outIdx++]=224|u>>12;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}else if(u<=2097151){if(outIdx+3>=endIdx)break;outU8Array[outIdx++]=240|u>>18;outU8Array[outIdx++]=128|u>>12&63;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}else if(u<=67108863){if(outIdx+4>=endIdx)break;outU8Array[outIdx++]=248|u>>24;outU8Array[outIdx++]=128|u>>18&63;outU8Array[outIdx++]=128|u>>12&63;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}else{if(outIdx+5>=endIdx)break;outU8Array[outIdx++]=252|u>>30;outU8Array[outIdx++]=128|u>>24&63;outU8Array[outIdx++]=128|u>>18&63;outU8Array[outIdx++]=128|u>>12&63;outU8Array[outIdx++]=128|u>>6&63;outU8Array[outIdx++]=128|u&63}}outU8Array[outIdx]=0;return outIdx-startIdx}Module["stringToUTF8Array"]=stringToUTF8Array;function stringToUTF8(str,outPtr,maxBytesToWrite){return stringToUTF8Array(str,HEAPU8,outPtr,maxBytesToWrite)}Module["stringToUTF8"]=stringToUTF8;function lengthBytesUTF8(str){var len=0;for(var i=0;i<str.length;++i){var u=str.charCodeAt(i);if(u>=55296&&u<=57343)u=65536+((u&1023)<<10)|str.charCodeAt(++i)&1023;if(u<=127){++len}else if(u<=2047){len+=2}else if(u<=65535){len+=3}else if(u<=2097151){len+=4}else if(u<=67108863){len+=5}else{len+=6}}return len}Module["lengthBytesUTF8"]=lengthBytesUTF8;function UTF16ToString(ptr){var i=0;var str="";while(1){var codeUnit=HEAP16[ptr+i*2>>1];if(codeUnit==0)return str;++i;str+=String.fromCharCode(codeUnit)}}Module["UTF16ToString"]=UTF16ToString;function stringToUTF16(str,outPtr,maxBytesToWrite){if(maxBytesToWrite===undefined){maxBytesToWrite=2147483647}if(maxBytesToWrite<2)return 0;maxBytesToWrite-=2;var startPtr=outPtr;var numCharsToWrite=maxBytesToWrite<str.length*2?maxBytesToWrite/2:str.length;for(var i=0;i<numCharsToWrite;++i){var codeUnit=str.charCodeAt(i);HEAP16[outPtr>>1]=codeUnit;outPtr+=2}HEAP16[outPtr>>1]=0;return outPtr-startPtr}Module["stringToUTF16"]=stringToUTF16;function lengthBytesUTF16(str){return str.length*2}Module["lengthBytesUTF16"]=lengthBytesUTF16;function UTF32ToString(ptr){var i=0;var str="";while(1){var utf32=HEAP32[ptr+i*4>>2];if(utf32==0)return str;++i;if(utf32>=65536){var ch=utf32-65536;str+=String.fromCharCode(55296|ch>>10,56320|ch&1023)}else{str+=String.fromCharCode(utf32)}}}Module["UTF32ToString"]=UTF32ToString;function stringToUTF32(str,outPtr,maxBytesToWrite){if(maxBytesToWrite===undefined){maxBytesToWrite=2147483647}if(maxBytesToWrite<4)return 0;var startPtr=outPtr;var endPtr=startPtr+maxBytesToWrite-4;for(var i=0;i<str.length;++i){var codeUnit=str.charCodeAt(i);if(codeUnit>=55296&&codeUnit<=57343){var trailSurrogate=str.charCodeAt(++i);codeUnit=65536+((codeUnit&1023)<<10)|trailSurrogate&1023}HEAP32[outPtr>>2]=codeUnit;outPtr+=4;if(outPtr+4>endPtr)break}HEAP32[outPtr>>2]=0;return outPtr-startPtr}Module["stringToUTF32"]=stringToUTF32;function lengthBytesUTF32(str){var len=0;for(var i=0;i<str.length;++i){var codeUnit=str.charCodeAt(i);if(codeUnit>=55296&&codeUnit<=57343)++i;len+=4}return len}Module["lengthBytesUTF32"]=lengthBytesUTF32;function demangle(func){var hasLibcxxabi=!!Module["___cxa_demangle"];if(hasLibcxxabi){try{var buf=_malloc(func.length);writeStringToMemory(func.substr(1),buf);var status=_malloc(4);var ret=Module["___cxa_demangle"](buf,0,0,status);if(getValue(status,"i32")===0&&ret){return Pointer_stringify(ret)}}catch(e){}finally{if(buf)_free(buf);if(status)_free(status);if(ret)_free(ret)}}var i=3;var basicTypes={"v":"void","b":"bool","c":"char","s":"short","i":"int","l":"long","f":"float","d":"double","w":"wchar_t","a":"signed char","h":"unsigned char","t":"unsigned short","j":"unsigned int","m":"unsigned long","x":"long long","y":"unsigned long long","z":"..."};var subs=[];var first=true;function dump(x){if(x)Module.print(x);Module.print(func);var pre="";for(var a=0;a<i;a++)pre+=" ";Module.print(pre+"^")}function parseNested(){i++;if(func[i]==="K")i++;var parts=[];while(func[i]!=="E"){if(func[i]==="S"){i++;var next=func.indexOf("_",i);var num=func.substring(i,next)||0;parts.push(subs[num]||"?");i=next+1;continue}if(func[i]==="C"){parts.push(parts[parts.length-1]);i+=2;continue}var size=parseInt(func.substr(i));var pre=size.toString().length;if(!size||!pre){i--;break}var curr=func.substr(i+pre,size);parts.push(curr);subs.push(curr);i+=pre+size}i++;return parts}function parse(rawList,limit,allowVoid){limit=limit||Infinity;var ret="",list=[];function flushList(){return"("+list.join(", ")+")"}var name;if(func[i]==="N"){name=parseNested().join("::");limit--;if(limit===0)return rawList?[name]:name}else{if(func[i]==="K"||first&&func[i]==="L")i++;var size=parseInt(func.substr(i));if(size){var pre=size.toString().length;name=func.substr(i+pre,size);i+=pre+size}}first=false;if(func[i]==="I"){i++;var iList=parse(true);var iRet=parse(true,1,true);ret+=iRet[0]+" "+name+"<"+iList.join(", ")+">"}else{ret=name}paramLoop:while(i<func.length&&limit-->0){var c=func[i++];if(c in basicTypes){list.push(basicTypes[c])}else{switch(c){case"P":list.push(parse(true,1,true)[0]+"*");break;case"R":list.push(parse(true,1,true)[0]+"&");break;case"L":{i++;var end=func.indexOf("E",i);var size=end-i;list.push(func.substr(i,size));i+=size+2;break};case"A":{var size=parseInt(func.substr(i));i+=size.toString().length;if(func[i]!=="_")throw"?";i++;list.push(parse(true,1,true)[0]+" ["+size+"]");break};case"E":break paramLoop;default:ret+="?"+c;break paramLoop}}}if(!allowVoid&&list.length===1&&list[0]==="void")list=[];if(rawList){if(ret){list.push(ret+"?")}return list}else{return ret+flushList()}}var parsed=func;try{if(func=="Object._main"||func=="_main"){return"main()"}if(typeof func==="number")func=Pointer_stringify(func);if(func[0]!=="_")return func;if(func[1]!=="_")return func;if(func[2]!=="Z")return func;switch(func[3]){case"n":return"operator new()";case"d":return"operator delete()"}parsed=parse()}catch(e){parsed+="?"}if(parsed.indexOf("?")>=0&&!hasLibcxxabi){Runtime.warnOnce("warning: a problem occurred in builtin C++ name demangling; build with  -s DEMANGLE_SUPPORT=1  to link in libcxxabi demangling")}return parsed}function demangleAll(text){return text.replace(/__Z[\w\d_]+/g,(function(x){var y=demangle(x);return x===y?x:x+" ["+y+"]"}))}function jsStackTrace(){var err=new Error;if(!err.stack){try{throw new Error(0)}catch(e){err=e}if(!err.stack){return"(no stack trace available)"}}return err.stack.toString()}function stackTrace(){return demangleAll(jsStackTrace())}Module["stackTrace"]=stackTrace;var PAGE_SIZE=4096;function alignMemoryPage(x){if(x%4096>0){x+=4096-x%4096}return x}var HEAP;var HEAP8,HEAPU8,HEAP16,HEAPU16,HEAP32,HEAPU32,HEAPF32,HEAPF64;var STATIC_BASE=0,STATICTOP=0,staticSealed=false;var STACK_BASE=0,STACKTOP=0,STACK_MAX=0;var DYNAMIC_BASE=0,DYNAMICTOP=0;function abortOnCannotGrowMemory(){abort("Cannot enlarge memory arrays. Either (1) compile with  -s TOTAL_MEMORY=X  with X higher than the current value "+TOTAL_MEMORY+", (2) compile with  -s ALLOW_MEMORY_GROWTH=1  which adjusts the size at runtime but prevents some optimizations, (3) set Module.TOTAL_MEMORY to a higher value before the program runs, or if you want malloc to return NULL (0) instead of this abort, compile with  -s ABORTING_MALLOC=0 ")}function enlargeMemory(){abortOnCannotGrowMemory()}var TOTAL_STACK=Module["TOTAL_STACK"]||5242880;var TOTAL_MEMORY=Module["TOTAL_MEMORY"]||268435456;var totalMemory=64*1024;while(totalMemory<TOTAL_MEMORY||totalMemory<2*TOTAL_STACK){if(totalMemory<16*1024*1024){totalMemory*=2}else{totalMemory+=16*1024*1024}}if(totalMemory!==TOTAL_MEMORY){TOTAL_MEMORY=totalMemory}assert(typeof Int32Array!=="undefined"&&typeof Float64Array!=="undefined"&&!!(new Int32Array(1))["subarray"]&&!!(new Int32Array(1))["set"],"JS engine does not provide full typed array support");var buffer;buffer=new ArrayBuffer(TOTAL_MEMORY);HEAP8=new Int8Array(buffer);HEAP16=new Int16Array(buffer);HEAP32=new Int32Array(buffer);HEAPU8=new Uint8Array(buffer);HEAPU16=new Uint16Array(buffer);HEAPU32=new Uint32Array(buffer);HEAPF32=new Float32Array(buffer);HEAPF64=new Float64Array(buffer);HEAP32[0]=255;assert(HEAPU8[0]===255&&HEAPU8[3]===0,"Typed arrays 2 must be run on a little-endian system");Module["HEAP"]=HEAP;Module["buffer"]=buffer;Module["HEAP8"]=HEAP8;Module["HEAP16"]=HEAP16;Module["HEAP32"]=HEAP32;Module["HEAPU8"]=HEAPU8;Module["HEAPU16"]=HEAPU16;Module["HEAPU32"]=HEAPU32;Module["HEAPF32"]=HEAPF32;Module["HEAPF64"]=HEAPF64;function callRuntimeCallbacks(callbacks){while(callbacks.length>0){var callback=callbacks.shift();if(typeof callback=="function"){callback();continue}var func=callback.func;if(typeof func==="number"){if(callback.arg===undefined){Runtime.dynCall("v",func)}else{Runtime.dynCall("vi",func,[callback.arg])}}else{func(callback.arg===undefined?null:callback.arg)}}}var __ATPRERUN__=[];var __ATINIT__=[];var __ATMAIN__=[];var __ATEXIT__=[];var __ATPOSTRUN__=[];var runtimeInitialized=false;var runtimeExited=false;function preRun(){if(Module["preRun"]){if(typeof Module["preRun"]=="function")Module["preRun"]=[Module["preRun"]];while(Module["preRun"].length){addOnPreRun(Module["preRun"].shift())}}callRuntimeCallbacks(__ATPRERUN__)}function ensureInitRuntime(){if(runtimeInitialized)return;runtimeInitialized=true;callRuntimeCallbacks(__ATINIT__)}function preMain(){callRuntimeCallbacks(__ATMAIN__)}function exitRuntime(){callRuntimeCallbacks(__ATEXIT__);runtimeExited=true}function postRun(){if(Module["postRun"]){if(typeof Module["postRun"]=="function")Module["postRun"]=[Module["postRun"]];while(Module["postRun"].length){addOnPostRun(Module["postRun"].shift())}}callRuntimeCallbacks(__ATPOSTRUN__)}function addOnPreRun(cb){__ATPRERUN__.unshift(cb)}Module["addOnPreRun"]=addOnPreRun;function addOnInit(cb){__ATINIT__.unshift(cb)}Module["addOnInit"]=addOnInit;function addOnPreMain(cb){__ATMAIN__.unshift(cb)}Module["addOnPreMain"]=addOnPreMain;function addOnExit(cb){__ATEXIT__.unshift(cb)}Module["addOnExit"]=addOnExit;function addOnPostRun(cb){__ATPOSTRUN__.unshift(cb)}Module["addOnPostRun"]=addOnPostRun;function intArrayFromString(stringy,dontAddNull,length){var len=length>0?length:lengthBytesUTF8(stringy)+1;var u8array=new Array(len);var numBytesWritten=stringToUTF8Array(stringy,u8array,0,u8array.length);if(dontAddNull)u8array.length=numBytesWritten;return u8array}Module["intArrayFromString"]=intArrayFromString;function intArrayToString(array){var ret=[];for(var i=0;i<array.length;i++){var chr=array[i];if(chr>255){chr&=255}ret.push(String.fromCharCode(chr))}return ret.join("")}Module["intArrayToString"]=intArrayToString;function writeStringToMemory(string,buffer,dontAddNull){var array=intArrayFromString(string,dontAddNull);var i=0;while(i<array.length){var chr=array[i];HEAP8[buffer+i>>0]=chr;i=i+1}}Module["writeStringToMemory"]=writeStringToMemory;function writeArrayToMemory(array,buffer){for(var i=0;i<array.length;i++){HEAP8[buffer++>>0]=array[i]}}Module["writeArrayToMemory"]=writeArrayToMemory;function writeAsciiToMemory(str,buffer,dontAddNull){for(var i=0;i<str.length;++i){HEAP8[buffer++>>0]=str.charCodeAt(i)}if(!dontAddNull)HEAP8[buffer>>0]=0}Module["writeAsciiToMemory"]=writeAsciiToMemory;function unSign(value,bits,ignore){if(value>=0){return value}return bits<=32?2*Math.abs(1<<bits-1)+value:Math.pow(2,bits)+value}function reSign(value,bits,ignore){if(value<=0){return value}var half=bits<=32?Math.abs(1<<bits-1):Math.pow(2,bits-1);if(value>=half&&(bits<=32||value>half)){value=-2*half+value}return value}if(!Math["imul"]||Math["imul"](4294967295,5)!==-5)Math["imul"]=function imul(a,b){var ah=a>>>16;var al=a&65535;var bh=b>>>16;var bl=b&65535;return al*bl+(ah*bl+al*bh<<16)|0};Math.imul=Math["imul"];if(!Math["clz32"])Math["clz32"]=(function(x){x=x>>>0;for(var i=0;i<32;i++){if(x&1<<31-i)return i}return 32});Math.clz32=Math["clz32"];var Math_abs=Math.abs;var Math_cos=Math.cos;var Math_sin=Math.sin;var Math_tan=Math.tan;var Math_acos=Math.acos;var Math_asin=Math.asin;var Math_atan=Math.atan;var Math_atan2=Math.atan2;var Math_exp=Math.exp;var Math_log=Math.log;var Math_sqrt=Math.sqrt;var Math_ceil=Math.ceil;var Math_floor=Math.floor;var Math_pow=Math.pow;var Math_imul=Math.imul;var Math_fround=Math.fround;var Math_min=Math.min;var Math_clz32=Math.clz32;var runDependencies=0;var runDependencyWatcher=null;var dependenciesFulfilled=null;function getUniqueRunDependency(id){return id}function addRunDependency(id){runDependencies++;if(Module["monitorRunDependencies"]){Module["monitorRunDependencies"](runDependencies)}}Module["addRunDependency"]=addRunDependency;function removeRunDependency(id){runDependencies--;if(Module["monitorRunDependencies"]){Module["monitorRunDependencies"](runDependencies)}if(runDependencies==0){if(runDependencyWatcher!==null){clearInterval(runDependencyWatcher);runDependencyWatcher=null}if(dependenciesFulfilled){var callback=dependenciesFulfilled;dependenciesFulfilled=null;callback()}}}Module["removeRunDependency"]=removeRunDependency;Module["preloadedImages"]={};Module["preloadedAudios"]={};var memoryInitializer=null;var ASM_CONSTS=[(function($0,$1,$2,$3){{if(!artoolkit["multiEachMarkerInfo"]){artoolkit["multiEachMarkerInfo"]={}}var multiEachMarker=artoolkit["multiEachMarkerInfo"];multiEachMarker["visible"]=$0;multiEachMarker["pattId"]=$1;multiEachMarker["pattType"]=$2;multiEachMarker["width"]=$3}}),(function($0,$1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18,$19,$20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$30,$31,$32){{var $a=arguments;var i=12;if(!artoolkit["markerInfo"]){artoolkit["markerInfo"]={pos:[0,0],line:[[0,0,0],[0,0,0],[0,0,0],[0,0,0]],vertex:[[0,0],[0,0],[0,0],[0,0]]}}var markerInfo=artoolkit["markerInfo"];markerInfo["area"]=$0;markerInfo["id"]=$1;markerInfo["idPatt"]=$2;markerInfo["idMatrix"]=$3;markerInfo["dir"]=$4;markerInfo["dirPatt"]=$5;markerInfo["dirMatrix"]=$6;markerInfo["cf"]=$7;markerInfo["cfPatt"]=$8;markerInfo["cfMatrix"]=$9;markerInfo["pos"][0]=$10;markerInfo["pos"][1]=$11;markerInfo["line"][0][0]=$a[i++];markerInfo["line"][0][1]=$a[i++];markerInfo["line"][0][2]=$a[i++];markerInfo["line"][1][0]=$a[i++];markerInfo["line"][1][1]=$a[i++];markerInfo["line"][1][2]=$a[i++];markerInfo["line"][2][0]=$a[i++];markerInfo["line"][2][1]=$a[i++];markerInfo["line"][2][2]=$a[i++];markerInfo["line"][3][0]=$a[i++];markerInfo["line"][3][1]=$a[i++];markerInfo["line"][3][2]=$a[i++];markerInfo["vertex"][0][0]=$a[i++];markerInfo["vertex"][0][1]=$a[i++];markerInfo["vertex"][1][0]=$a[i++];markerInfo["vertex"][1][1]=$a[i++];markerInfo["vertex"][2][0]=$a[i++];markerInfo["vertex"][2][1]=$a[i++];markerInfo["vertex"][3][0]=$a[i++];markerInfo["vertex"][3][1]=$a[i++];markerInfo["errorCorrected"]=$a[i++]}}),(function($0,$1,$2,$3,$4){{if(!artoolkit["frameMalloc"]){artoolkit["frameMalloc"]={}}var frameMalloc=artoolkit["frameMalloc"];frameMalloc["framepointer"]=$1;frameMalloc["framesize"]=$2;frameMalloc["camera"]=$3;frameMalloc["transform"]=$4}})];function _emscripten_asm_const_33(code,a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14,a15,a16,a17,a18,a19,a20,a21,a22,a23,a24,a25,a26,a27,a28,a29,a30,a31,a32){return ASM_CONSTS[code](a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13,a14,a15,a16,a17,a18,a19,a20,a21,a22,a23,a24,a25,a26,a27,a28,a29,a30,a31,a32)}function _emscripten_asm_const_4(code,a0,a1,a2,a3){return ASM_CONSTS[code](a0,a1,a2,a3)}function _emscripten_asm_const_5(code,a0,a1,a2,a3,a4){return 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95,72,65,77,77,73,78,71,54,51,0,65,82,95,77,65,84,82,73,88,95,67,79,68,69,95,51,120,51,95,80,65,82,73,84,89,54,53,0,65,82,95,77,65,84,82,73,88,95,67,79,68,69,95,52,120,52,0,65,82,95,77,65,84,82,73,88,95,67,79,68,69,95,52,120,52,95,66,67,72,95,49,51,95,57,95,51,0,65,82,95,77,65,84,82,73,88,95,67,79,68,69,95,52,120,52,95,66,67,72,95,49,51,95,53,95,53,0,65,82,95,76,65,66,69,76,73,78,71,95,84,72,82,69,83,72,95,77,79,68,69,95,77,65,78,85,65,76,0,65,82,95,76,65,66,69,76,73,78,71,95,84,72,82,69,83,72,95,77,79,68,69,95,65,85,84,79,95,77,69,68,73,65,78,0,65,82,95,76,65],"i8",ALLOC_NONE,Runtime.GLOBAL_BASE);allocate([66,69,76,73,78,71,95,84,72,82,69,83,72,95,77,79,68,69,95,65,85,84,79,95,79,84,83,85,0,65,82,95,76,65,66,69,76,73,78,71,95,84,72,82,69,83,72,95,77,79,68,69,95,65,85,84,79,95,65,68,65,80,84,73,86,69,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,78,79,78,69,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,80,65,84,84,69,82,78,95,69,88,84,82,65,67,84,73,79,78,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,77,65,84,67,72,95,71,69,78,69,82,73,67,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,77,65,84,67,72,95,67,79,78,84,82,65,83,84,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,77,65,84,67,72,95,66,65,82,67,79,68,69,95,78,79,84,95,70,79,85,78,68,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,77,65,84,67,72,95,66,65,82,67,79,68,69,95,69,68,67,95,70,65,73,76,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,77,65,84,67,72,95,67,79,78,70,73,68,69,78,67,69,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,80,79,83,69,95,69,82,82,79,82,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,80,79,83,69,95,69,82,82,79,82,95,77,85,76,84,73,0,65,82,95,77,65,82,75,69,82,95,73,78,70,79,95,67,85,84,79,70,70,95,80,72,65,83,69,95,72,69,85,82,73,83,84,73,67,95,84,82,79,85,66,76,69,83,79,77,69,95,77,65,84,82,73,88,95,67,79,68,69,83,0,118,105,105,102,0,118,105,105,105,0,100,105,105,0,118,105,105,100,0,105,105,0,118,105,105,0,105,105,105,0,78,83,116,51,95,95,49,49,50,98,97,115,105,99,95,115,116,114,105,110,103,73,99,78,83,95,49,49,99,104,97,114,95,116,114,97,105,116,115,73,99,69,69,78,83,95,57,97,108,108,111,99,97,116,111,114,73,99,69,69,69,69,0,78,83,116,51,95,95,49,50,49,95,95,98,97,115,105,99,95,115,116,114,105,110,103,95,99,111,109,109,111,110,73,76,98,49,69,69,69,0,105,105,105,105,0,105,105,105,105,105,0,118,111,105,100,0,98,111,111,108,0,99,104,97,114,0,115,105,103,110,101,100,32,99,104,97,114,0,117,110,115,105,103,110,101,100,32,99,104,97,114,0,115,104,111,114,116,0,117,110,115,105,103,110,101,100,32,115,104,111,114,116,0,105,110,116,0,117,110,115,105,103,110,101,100,32,105,110,116,0,108,111,110,103,0,117,110,115,105,103,110,101,100,32,108,111,110,103,0,102,108,111,97,116,0,100,111,117,98,108,101,0,115,116,100,58,58,115,116,114,105,110,103,0,115,116,100,58,58,98,97,115,105,99,95,115,116,114,105,110,103,60,117,110,115,105,103,110,101,100,32,99,104,97,114,62,0,115,116,100,58,58,119,115,116,114,105,110,103,0,101,109,115,99,114,105,112,116,101,110,58,58,118,97,108,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,99,104,97,114,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,115,105,103,110,101,100,32,99,104,97,114,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,117,110,115,105,103,110,101,100,32,99,104,97,114,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,115,104,111,114,116,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,117,110,115,105,103,110,101,100,32,115,104,111,114,116,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,105,110,116,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,117,110,115,105,103,110,101,100,32,105,110,116,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,108,111,110,103,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,117,110,115,105,103,110,101,100,32,108,111,110,103,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,105,110,116,56,95,116,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,117,105,110,116,56,95,116,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,105,110,116,49,54,95,116,62,0,101,109,115,99,114,105,112,116,101,110,58,58,109,101,109,111,114,121,95,118,105,101,119,60,117,105,110,116,49,54,95,116,62,0,101,1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tempDoublePtr=Runtime.alignMemory(allocate(12,"i8",ALLOC_STATIC),8);assert(tempDoublePtr%8==0);function copyTempFloat(ptr){HEAP8[tempDoublePtr]=HEAP8[ptr];HEAP8[tempDoublePtr+1]=HEAP8[ptr+1];HEAP8[tempDoublePtr+2]=HEAP8[ptr+2];HEAP8[tempDoublePtr+3]=HEAP8[ptr+3]}function copyTempDouble(ptr){HEAP8[tempDoublePtr]=HEAP8[ptr];HEAP8[tempDoublePtr+1]=HEAP8[ptr+1];HEAP8[tempDoublePtr+2]=HEAP8[ptr+2];HEAP8[tempDoublePtr+3]=HEAP8[ptr+3];HEAP8[tempDoublePtr+4]=HEAP8[ptr+4];HEAP8[tempDoublePtr+5]=HEAP8[ptr+5];HEAP8[tempDoublePtr+6]=HEAP8[ptr+6];HEAP8[tempDoublePtr+7]=HEAP8[ptr+7]}function _atexit(func,arg){__ATEXIT__.unshift({func:func,arg:arg})}function ___cxa_atexit(){return _atexit.apply(null,arguments)}Module["_i64Subtract"]=_i64Subtract;function ___assert_fail(condition,filename,line,func){ABORT=true;throw"Assertion failed: "+Pointer_stringify(condition)+", at: "+[filename?Pointer_stringify(filename):"unknown filename",line,func?Pointer_stringify(func):"unknown function"]+" at "+stackTrace()}function embind_init_charCodes(){var codes=new Array(256);for(var i=0;i<256;++i){codes[i]=String.fromCharCode(i)}embind_charCodes=codes}var embind_charCodes=undefined;function readLatin1String(ptr){var ret="";var c=ptr;while(HEAPU8[c]){ret+=embind_charCodes[HEAPU8[c++]]}return ret}var awaitingDependencies={};var registeredTypes={};var typeDependencies={};var char_0=48;var char_9=57;function makeLegalFunctionName(name){if(undefined===name){return"_unknown"}name=name.replace(/[^a-zA-Z0-9_]/g,"$");var f=name.charCodeAt(0);if(f>=char_0&&f<=char_9){return"_"+name}else{return name}}function createNamedFunction(name,body){name=makeLegalFunctionName(name);return(new Function("body","return function "+name+"() {\n"+'    "use strict";'+"    return body.apply(this, arguments);\n"+"};\n"))(body)}function extendError(baseErrorType,errorName){var errorClass=createNamedFunction(errorName,(function(message){this.name=errorName;this.message=message;var stack=(new Error(message)).stack;if(stack!==undefined){this.stack=this.toString()+"\n"+stack.replace(/^Error(:[^\n]*)?\n/,"")}}));errorClass.prototype=Object.create(baseErrorType.prototype);errorClass.prototype.constructor=errorClass;errorClass.prototype.toString=(function(){if(this.message===undefined){return this.name}else{return this.name+": "+this.message}});return errorClass}var BindingError=undefined;function throwBindingError(message){throw new BindingError(message)}var InternalError=undefined;function throwInternalError(message){throw new InternalError(message)}function whenDependentTypesAreResolved(myTypes,dependentTypes,getTypeConverters){myTypes.forEach((function(type){typeDependencies[type]=dependentTypes}));function onComplete(typeConverters){var myTypeConverters=getTypeConverters(typeConverters);if(myTypeConverters.length!==myTypes.length){throwInternalError("Mismatched type converter count")}for(var i=0;i<myTypes.length;++i){registerType(myTypes[i],myTypeConverters[i])}}var typeConverters=new Array(dependentTypes.length);var unregisteredTypes=[];var registered=0;dependentTypes.forEach((function(dt,i){if(registeredTypes.hasOwnProperty(dt)){typeConverters[i]=registeredTypes[dt]}else{unregisteredTypes.push(dt);if(!awaitingDependencies.hasOwnProperty(dt)){awaitingDependencies[dt]=[]}awaitingDependencies[dt].push((function(){typeConverters[i]=registeredTypes[dt];++registered;if(registered===unregisteredTypes.length){onComplete(typeConverters)}}))}}));if(0===unregisteredTypes.length){onComplete(typeConverters)}}function registerType(rawType,registeredInstance,options){options=options||{};if(!("argPackAdvance"in registeredInstance)){throw new TypeError("registerType registeredInstance requires argPackAdvance")}var name=registeredInstance.name;if(!rawType){throwBindingError('type "'+name+'" must have a positive integer typeid pointer')}if(registeredTypes.hasOwnProperty(rawType)){if(options.ignoreDuplicateRegistrations){return}else{throwBindingError("Cannot register type '"+name+"' twice")}}registeredTypes[rawType]=registeredInstance;delete typeDependencies[rawType];if(awaitingDependencies.hasOwnProperty(rawType)){var callbacks=awaitingDependencies[rawType];delete awaitingDependencies[rawType];callbacks.forEach((function(cb){cb()}))}}function __embind_register_void(rawType,name){name=readLatin1String(name);registerType(rawType,{isVoid:true,name:name,"argPackAdvance":0,"fromWireType":(function(){return undefined}),"toWireType":(function(destructors,o){return undefined})})}function __ZSt18uncaught_exceptionv(){return!!__ZSt18uncaught_exceptionv.uncaught_exception}var EXCEPTIONS={last:0,caught:[],infos:{},deAdjust:(function(adjusted){if(!adjusted||EXCEPTIONS.infos[adjusted])return adjusted;for(var ptr in EXCEPTIONS.infos){var info=EXCEPTIONS.infos[ptr];if(info.adjusted===adjusted){return ptr}}return adjusted}),addRef:(function(ptr){if(!ptr)return;var info=EXCEPTIONS.infos[ptr];info.refcount++}),decRef:(function(ptr){if(!ptr)return;var info=EXCEPTIONS.infos[ptr];assert(info.refcount>0);info.refcount--;if(info.refcount===0){if(info.destructor){Runtime.dynCall("vi",info.destructor,[ptr])}delete EXCEPTIONS.infos[ptr];___cxa_free_exception(ptr)}}),clearRef:(function(ptr){if(!ptr)return;var info=EXCEPTIONS.infos[ptr];info.refcount=0})};function ___resumeException(ptr){if(!EXCEPTIONS.last){EXCEPTIONS.last=ptr}EXCEPTIONS.clearRef(EXCEPTIONS.deAdjust(ptr));throw ptr+" - Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_EXCEPTION_CATCHING=2 to catch."}function ___cxa_find_matching_catch(){var thrown=EXCEPTIONS.last;if(!thrown){return(asm["setTempRet0"](0),0)|0}var info=EXCEPTIONS.infos[thrown];var throwntype=info.type;if(!throwntype){return(asm["setTempRet0"](0),thrown)|0}var typeArray=Array.prototype.slice.call(arguments);var pointer=Module["___cxa_is_pointer_type"](throwntype);if(!___cxa_find_matching_catch.buffer)___cxa_find_matching_catch.buffer=_malloc(4);HEAP32[___cxa_find_matching_catch.buffer>>2]=thrown;thrown=___cxa_find_matching_catch.buffer;for(var i=0;i<typeArray.length;i++){if(typeArray[i]&&Module["___cxa_can_catch"](typeArray[i],throwntype,thrown)){thrown=HEAP32[thrown>>2];info.adjusted=thrown;return(asm["setTempRet0"](typeArray[i]),thrown)|0}}thrown=HEAP32[thrown>>2];return(asm["setTempRet0"](throwntype),thrown)|0}function ___cxa_throw(ptr,type,destructor){EXCEPTIONS.infos[ptr]={ptr:ptr,adjusted:ptr,type:type,destructor:destructor,refcount:0};EXCEPTIONS.last=ptr;if(!("uncaught_exception"in __ZSt18uncaught_exceptionv)){__ZSt18uncaught_exceptionv.uncaught_exception=1}else{__ZSt18uncaught_exceptionv.uncaught_exception++}throw ptr+" - Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_EXCEPTION_CATCHING=2 to catch."}Module["_memset"]=_memset;var _BDtoILow=true;function getShiftFromSize(size){switch(size){case 1:return 0;case 2:return 1;case 4:return 2;case 8:return 3;default:throw new TypeError("Unknown type size: "+size)}}function __embind_register_bool(rawType,name,size,trueValue,falseValue){var shift=getShiftFromSize(size);name=readLatin1String(name);registerType(rawType,{name:name,"fromWireType":(function(wt){return!!wt}),"toWireType":(function(destructors,o){return o?trueValue:falseValue}),"argPackAdvance":8,"readValueFromPointer":(function(pointer){var heap;if(size===1){heap=HEAP8}else if(size===2){heap=HEAP16}else if(size===4){heap=HEAP32}else{throw new TypeError("Unknown boolean type size: "+name)}return this["fromWireType"](heap[pointer>>shift])}),destructorFunction:null})}Module["_bitshift64Shl"]=_bitshift64Shl;function _abort(){Module["abort"]()}function _free(){}Module["_free"]=_free;function _malloc(bytes){var ptr=Runtime.dynamicAlloc(bytes+8);return ptr+8&4294967288}Module["_malloc"]=_malloc;function simpleReadValueFromPointer(pointer){return this["fromWireType"](HEAPU32[pointer>>2])}function __embind_register_std_string(rawType,name){name=readLatin1String(name);registerType(rawType,{name:name,"fromWireType":(function(value){var length=HEAPU32[value>>2];var a=new Array(length);for(var i=0;i<length;++i){a[i]=String.fromCharCode(HEAPU8[value+4+i])}_free(value);return a.join("")}),"toWireType":(function(destructors,value){if(value instanceof ArrayBuffer){value=new Uint8Array(value)}function getTAElement(ta,index){return ta[index]}function getStringElement(string,index){return string.charCodeAt(index)}var getElement;if(value instanceof Uint8Array){getElement=getTAElement}else if(value instanceof Int8Array){getElement=getTAElement}else if(typeof value==="string"){getElement=getStringElement}else{throwBindingError("Cannot pass non-string to std::string")}var length=value.length;var ptr=_malloc(4+length);HEAPU32[ptr>>2]=length;for(var i=0;i<length;++i){var charCode=getElement(value,i);if(charCode>255){_free(ptr);throwBindingError("String has UTF-16 code units that do not fit in 8 bits")}HEAPU8[ptr+4+i]=charCode}if(destructors!==null){destructors.push(_free,ptr)}return ptr}),"argPackAdvance":8,"readValueFromPointer":simpleReadValueFromPointer,destructorFunction:(function(ptr){_free(ptr)})})}function __embind_register_std_wstring(rawType,charSize,name){name=readLatin1String(name);var getHeap,shift;if(charSize===2){getHeap=(function(){return HEAPU16});shift=1}else if(charSize===4){getHeap=(function(){return HEAPU32});shift=2}registerType(rawType,{name:name,"fromWireType":(function(value){var HEAP=getHeap();var length=HEAPU32[value>>2];var a=new Array(length);var start=value+4>>shift;for(var i=0;i<length;++i){a[i]=String.fromCharCode(HEAP[start+i])}_free(value);return a.join("")}),"toWireType":(function(destructors,value){var HEAP=getHeap();var length=value.length;var ptr=_malloc(4+length*charSize);HEAPU32[ptr>>2]=length;var start=ptr+4>>shift;for(var i=0;i<length;++i){HEAP[start+i]=value.charCodeAt(i)}if(destructors!==null){destructors.push(_free,ptr)}return ptr}),"argPackAdvance":8,"readValueFromPointer":simpleReadValueFromPointer,destructorFunction:(function(ptr){_free(ptr)})})}function ___lock(){}function ___unlock(){}var _emscripten_asm_const_int=true;Module["_i64Add"]=_i64Add;var _fabs=Math_abs;var _sqrt=Math_sqrt;function _embind_repr(v){if(v===null){return"null"}var t=typeof v;if(t==="object"||t==="array"||t==="function"){return v.toString()}else{return""+v}}function integerReadValueFromPointer(name,shift,signed){switch(shift){case 0:return signed?function readS8FromPointer(pointer){return HEAP8[pointer]}:function readU8FromPointer(pointer){return HEAPU8[pointer]};case 1:return signed?function readS16FromPointer(pointer){return HEAP16[pointer>>1]}:function readU16FromPointer(pointer){return HEAPU16[pointer>>1]};case 2:return signed?function readS32FromPointer(pointer){return HEAP32[pointer>>2]}:function readU32FromPointer(pointer){return HEAPU32[pointer>>2]};default:throw new TypeError("Unknown integer type: "+name)}}function __embind_register_integer(primitiveType,name,size,minRange,maxRange){name=readLatin1String(name);if(maxRange===-1){maxRange=4294967295}var shift=getShiftFromSize(size);var fromWireType=(function(value){return value});if(minRange===0){var bitshift=32-8*size;fromWireType=(function(value){return value<<bitshift>>>bitshift})}registerType(primitiveType,{name:name,"fromWireType":fromWireType,"toWireType":(function(destructors,value){if(typeof value!=="number"&&typeof value!=="boolean"){throw new TypeError('Cannot convert "'+_embind_repr(value)+'" to '+this.name)}if(value<minRange||value>maxRange){throw new TypeError('Passing a number "'+_embind_repr(value)+'" from JS side to C/C++ side to an argument of type "'+name+'", which is outside the valid range ['+minRange+", "+maxRange+"]!")}return value|0}),"argPackAdvance":8,"readValueFromPointer":integerReadValueFromPointer(name,shift,minRange!==0),destructorFunction:null})}var emval_free_list=[];var emval_handle_array=[{},{value:undefined},{value:null},{value:true},{value:false}];function __emval_decref(handle){if(handle>4&&0===--emval_handle_array[handle].refcount){emval_handle_array[handle]=undefined;emval_free_list.push(handle)}}function count_emval_handles(){var count=0;for(var i=5;i<emval_handle_array.length;++i){if(emval_handle_array[i]!==undefined){++count}}return count}function get_first_emval(){for(var i=5;i<emval_handle_array.length;++i){if(emval_handle_array[i]!==undefined){return emval_handle_array[i]}}return null}function init_emval(){Module["count_emval_handles"]=count_emval_handles;Module["get_first_emval"]=get_first_emval}function __emval_register(value){switch(value){case undefined:{return 1};case null:{return 2};case true:{return 3};case false:{return 4};default:{var handle=emval_free_list.length?emval_free_list.pop():emval_handle_array.length;emval_handle_array[handle]={refcount:1,value:value};return handle}}}function __embind_register_emval(rawType,name){name=readLatin1String(name);registerType(rawType,{name:name,"fromWireType":(function(handle){var rv=emval_handle_array[handle].value;__emval_decref(handle);return rv}),"toWireType":(function(destructors,value){return __emval_register(value)}),"argPackAdvance":8,"readValueFromPointer":simpleReadValueFromPointer,destructorFunction:null})}function ___cxa_allocate_exception(size){return _malloc(size)}var _sin=Math_sin;function ___setErrNo(value){if(Module["___errno_location"])HEAP32[Module["___errno_location"]()>>2]=value;return value}var ERRNO_CODES={EPERM:1,ENOENT:2,ESRCH:3,EINTR:4,EIO:5,ENXIO:6,E2BIG:7,ENOEXEC:8,EBADF:9,ECHILD:10,EAGAIN:11,EWOULDBLOCK:11,ENOMEM:12,EACCES:13,EFAULT:14,ENOTBLK:15,EBUSY:16,EEXIST:17,EXDEV:18,ENODEV:19,ENOTDIR:20,EISDIR:21,EINVAL:22,ENFILE:23,EMFILE:24,ENOTTY:25,ETXTBSY:26,EFBIG:27,ENOSPC:28,ESPIPE:29,EROFS:30,EMLINK:31,EPIPE:32,EDOM:33,ERANGE:34,ENOMSG:42,EIDRM:43,ECHRNG:44,EL2NSYNC:45,EL3HLT:46,EL3RST:47,ELNRNG:48,EUNATCH:49,ENOCSI:50,EL2HLT:51,EDEADLK:35,ENOLCK:37,EBADE:52,EBADR:53,EXFULL:54,ENOANO:55,EBADRQC:56,EBADSLT:57,EDEADLOCK:35,EBFONT:59,ENOSTR:60,ENODATA:61,ETIME:62,ENOSR:63,ENONET:64,ENOPKG:65,EREMOTE:66,ENOLINK:67,EADV:68,ESRMNT:69,ECOMM:70,EPROTO:71,EMULTIHOP:72,EDOTDOT:73,EBADMSG:74,ENOTUNIQ:76,EBADFD:77,EREMCHG:78,ELIBACC:79,ELIBBAD:80,ELIBSCN:81,ELIBMAX:82,ELIBEXEC:83,ENOSYS:38,ENOTEMPTY:39,ENAMETOOLONG:36,ELOOP:40,EOPNOTSUPP:95,EPFNOSUPPORT:96,ECONNRESET:104,ENOBUFS:105,EAFNOSUPPORT:97,EPROTOTYPE:91,ENOTSOCK:88,ENOPROTOOPT:92,ESHUTDOWN:108,ECONNREFUSED:111,EADDRINUSE:98,ECONNABORTED:103,ENETUNREACH:101,ENETDOWN:100,ETIMEDOUT:110,EHOSTDOWN:112,EHOSTUNREACH:113,EINPROGRESS:115,EALREADY:114,EDESTADDRREQ:89,EMSGSIZE:90,EPROTONOSUPPORT:93,ESOCKTNOSUPPORT:94,EADDRNOTAVAIL:99,ENETRESET:102,EISCONN:106,ENOTCONN:107,ETOOMANYREFS:109,EUSERS:87,EDQUOT:122,ESTALE:116,ENOTSUP:95,ENOMEDIUM:123,EILSEQ:84,EOVERFLOW:75,ECANCELED:125,ENOTRECOVERABLE:131,EOWNERDEAD:130,ESTRPIPE:86};function _sysconf(name){switch(name){case 30:return PAGE_SIZE;case 85:return totalMemory/PAGE_SIZE;case 132:case 133:case 12:case 137:case 138:case 15:case 235:case 16:case 17:case 18:case 19:case 20:case 149:case 13:case 10:case 236:case 153:case 9:case 21:case 22:case 159:case 154:case 14:case 77:case 78:case 139:case 80:case 81:case 82:case 68:case 67:case 164:case 11:case 29:case 47:case 48:case 95:case 52:case 51:case 46:return 200809;case 79:return 0;case 27:case 246:case 127:case 128:case 23:case 24:case 160:case 161:case 181:case 182:case 242:case 183:case 184:case 243:case 244:case 245:case 165:case 178:case 179:case 49:case 50:case 168:case 169:case 175:case 170:case 171:case 172:case 97:case 76:case 32:case 173:case 35:return-1;case 176:case 177:case 7:case 155:case 8:case 157:case 125:case 126:case 92:case 93:case 129:case 130:case 131:case 94:case 91:return 1;case 74:case 60:case 69:case 70:case 4:return 1024;case 31:case 42:case 72:return 32;case 87:case 26:case 33:return 2147483647;case 34:case 1:return 47839;case 38:case 36:return 99;case 43:case 37:return 2048;case 0:return 2097152;case 3:return 65536;case 28:return 32768;case 44:return 32767;case 75:return 16384;case 39:return 1e3;case 89:return 700;case 71:return 256;case 40:return 255;case 2:return 100;case 180:return 64;case 25:return 20;case 5:return 16;case 6:return 6;case 73:return 4;case 84:{if(typeof navigator==="object")return navigator["hardwareConcurrency"]||1;return 1}}___setErrNo(ERRNO_CODES.EINVAL);return-1}Module["_bitshift64Lshr"]=_bitshift64Lshr;function __exit(status){Module["exit"](status)}function _exit(status){__exit(status)}var _llvm_ctlz_i32=true;function floatReadValueFromPointer(name,shift){switch(shift){case 2:return(function(pointer){return this["fromWireType"](HEAPF32[pointer>>2])});case 3:return(function(pointer){return this["fromWireType"](HEAPF64[pointer>>3])});default:throw new TypeError("Unknown float type: "+name)}}function __embind_register_float(rawType,name,size){var shift=getShiftFromSize(size);name=readLatin1String(name);registerType(rawType,{name:name,"fromWireType":(function(value){return value}),"toWireType":(function(destructors,value){if(typeof value!=="number"&&typeof value!=="boolean"){throw new TypeError('Cannot convert "'+_embind_repr(value)+'" to '+this.name)}return value}),"argPackAdvance":8,"readValueFromPointer":floatReadValueFromPointer(name,shift),destructorFunction:null})}var _BDtoIHigh=true;function _pthread_cleanup_push(routine,arg){__ATEXIT__.push((function(){Runtime.dynCall("vi",routine,[arg])}));_pthread_cleanup_push.level=__ATEXIT__.length}function new_(constructor,argumentList){if(!(constructor instanceof Function)){throw new TypeError("new_ called with constructor type "+typeof constructor+" which is not a function")}var dummy=createNamedFunction(constructor.name||"unknownFunctionName",(function(){}));dummy.prototype=constructor.prototype;var obj=new dummy;var r=constructor.apply(obj,argumentList);return r instanceof Object?r:obj}function runDestructors(destructors){while(destructors.length){var ptr=destructors.pop();var del=destructors.pop();del(ptr)}}function craftInvokerFunction(humanName,argTypes,classType,cppInvokerFunc,cppTargetFunc){var argCount=argTypes.length;if(argCount<2){throwBindingError("argTypes array size mismatch! Must at least get return value and 'this' types!")}var isClassMethodFunc=argTypes[1]!==null&&classType!==null;var argsList="";var argsListWired="";for(var i=0;i<argCount-2;++i){argsList+=(i!==0?", ":"")+"arg"+i;argsListWired+=(i!==0?", ":"")+"arg"+i+"Wired"}var invokerFnBody="return function "+makeLegalFunctionName(humanName)+"("+argsList+") {\n"+"if (arguments.length !== "+(argCount-2)+") {\n"+"throwBindingError('function "+humanName+" called with ' + arguments.length + ' arguments, expected "+(argCount-2)+" args!');\n"+"}\n";var needsDestructorStack=false;for(var i=1;i<argTypes.length;++i){if(argTypes[i]!==null&&argTypes[i].destructorFunction===undefined){needsDestructorStack=true;break}}if(needsDestructorStack){invokerFnBody+="var destructors = [];\n"}var dtorStack=needsDestructorStack?"destructors":"null";var args1=["throwBindingError","invoker","fn","runDestructors","retType","classParam"];var args2=[throwBindingError,cppInvokerFunc,cppTargetFunc,runDestructors,argTypes[0],argTypes[1]];if(isClassMethodFunc){invokerFnBody+="var thisWired = classParam.toWireType("+dtorStack+", this);\n"}for(var i=0;i<argCount-2;++i){invokerFnBody+="var arg"+i+"Wired = argType"+i+".toWireType("+dtorStack+", arg"+i+"); // "+argTypes[i+2].name+"\n";args1.push("argType"+i);args2.push(argTypes[i+2])}if(isClassMethodFunc){argsListWired="thisWired"+(argsListWired.length>0?", ":"")+argsListWired}var returns=argTypes[0].name!=="void";invokerFnBody+=(returns?"var rv = ":"")+"invoker(fn"+(argsListWired.length>0?", ":"")+argsListWired+");\n";if(needsDestructorStack){invokerFnBody+="runDestructors(destructors);\n"}else{for(var i=isClassMethodFunc?1:2;i<argTypes.length;++i){var paramName=i===1?"thisWired":"arg"+(i-2)+"Wired";if(argTypes[i].destructorFunction!==null){invokerFnBody+=paramName+"_dtor("+paramName+"); // "+argTypes[i].name+"\n";args1.push(paramName+"_dtor");args2.push(argTypes[i].destructorFunction)}}}if(returns){invokerFnBody+="var ret = retType.fromWireType(rv);\n"+"return ret;\n"}else{}invokerFnBody+="}\n";args1.push(invokerFnBody);var invokerFunction=new_(Function,args1).apply(null,args2);return invokerFunction}function ensureOverloadTable(proto,methodName,humanName){if(undefined===proto[methodName].overloadTable){var prevFunc=proto[methodName];proto[methodName]=(function(){if(!proto[methodName].overloadTable.hasOwnProperty(arguments.length)){throwBindingError("Function '"+humanName+"' called with an invalid number of arguments ("+arguments.length+") - expects one of ("+proto[methodName].overloadTable+")!")}return proto[methodName].overloadTable[arguments.length].apply(this,arguments)});proto[methodName].overloadTable=[];proto[methodName].overloadTable[prevFunc.argCount]=prevFunc}}function exposePublicSymbol(name,value,numArguments){if(Module.hasOwnProperty(name)){if(undefined===numArguments||undefined!==Module[name].overloadTable&&undefined!==Module[name].overloadTable[numArguments]){throwBindingError("Cannot register public name '"+name+"' twice")}ensureOverloadTable(Module,name,name);if(Module.hasOwnProperty(numArguments)){throwBindingError("Cannot register multiple overloads of a function with the same number of arguments ("+numArguments+")!")}Module[name].overloadTable[numArguments]=value}else{Module[name]=value;if(undefined!==numArguments){Module[name].numArguments=numArguments}}}function heap32VectorToArray(count,firstElement){var array=[];for(var i=0;i<count;i++){array.push(HEAP32[(firstElement>>2)+i])}return array}function replacePublicSymbol(name,value,numArguments){if(!Module.hasOwnProperty(name)){throwInternalError("Replacing nonexistant public symbol")}if(undefined!==Module[name].overloadTable&&undefined!==numArguments){Module[name].overloadTable[numArguments]=value}else{Module[name]=value}}function requireFunction(signature,rawFunction){signature=readLatin1String(signature);function makeDynCaller(dynCall){var args=[];for(var i=1;i<signature.length;++i){args.push("a"+i)}var name="dynCall_"+signature+"_"+rawFunction;var body="return function "+name+"("+args.join(", ")+") {\n";body+="    return dynCall(rawFunction"+(args.length?", ":"")+args.join(", ")+");\n";body+="};\n";return(new Function("dynCall","rawFunction",body))(dynCall,rawFunction)}var fp;if(Module["FUNCTION_TABLE_"+signature]!==undefined){fp=Module["FUNCTION_TABLE_"+signature][rawFunction]}else if(typeof FUNCTION_TABLE!=="undefined"){fp=FUNCTION_TABLE[rawFunction]}else{var dc=asm["dynCall_"+signature];if(dc===undefined){dc=asm["dynCall_"+signature.replace(/f/g,"d")];if(dc===undefined){throwBindingError("No dynCall invoker for signature: "+signature)}}fp=makeDynCaller(dc)}if(typeof fp!=="function"){throwBindingError("unknown function pointer with signature "+signature+": "+rawFunction)}return fp}var UnboundTypeError=undefined;function getTypeName(type){var ptr=___getTypeName(type);var rv=readLatin1String(ptr);_free(ptr);return rv}function throwUnboundTypeError(message,types){var unboundTypes=[];var seen={};function visit(type){if(seen[type]){return}if(registeredTypes[type]){return}if(typeDependencies[type]){typeDependencies[type].forEach(visit);return}unboundTypes.push(type);seen[type]=true}types.forEach(visit);throw new UnboundTypeError(message+": "+unboundTypes.map(getTypeName).join([", "]))}function __embind_register_function(name,argCount,rawArgTypesAddr,signature,rawInvoker,fn){var argTypes=heap32VectorToArray(argCount,rawArgTypesAddr);name=readLatin1String(name);rawInvoker=requireFunction(signature,rawInvoker);exposePublicSymbol(name,(function(){throwUnboundTypeError("Cannot call "+name+" due to unbound types",argTypes)}),argCount-1);whenDependentTypesAreResolved([],argTypes,(function(argTypes){var invokerArgsArray=[argTypes[0],null].concat(argTypes.slice(1));replacePublicSymbol(name,craftInvokerFunction(name,invokerArgsArray,null,rawInvoker,fn),argCount-1);return[]}))}function __embind_register_constant(name,type,value){name=readLatin1String(name);whenDependentTypesAreResolved([],[type],(function(type){type=type[0];Module[name]=type["fromWireType"](value);return[]}))}function _pthread_cleanup_pop(){assert(_pthread_cleanup_push.level==__ATEXIT__.length,"cannot pop if something else added meanwhile!");__ATEXIT__.pop();_pthread_cleanup_push.level=__ATEXIT__.length}var ERRNO_MESSAGES={0:"Success",1:"Not super-user",2:"No such file or directory",3:"No such process",4:"Interrupted system call",5:"I/O error",6:"No such device or address",7:"Arg list too long",8:"Exec format error",9:"Bad file number",10:"No children",11:"No more processes",12:"Not enough core",13:"Permission denied",14:"Bad address",15:"Block device required",16:"Mount device busy",17:"File exists",18:"Cross-device link",19:"No such device",20:"Not a directory",21:"Is a directory",22:"Invalid argument",23:"Too many open files in system",24:"Too many open files",25:"Not a typewriter",26:"Text file busy",27:"File too large",28:"No space left on device",29:"Illegal seek",30:"Read only file system",31:"Too many links",32:"Broken pipe",33:"Math arg out of domain of func",34:"Math result not representable",35:"File locking deadlock error",36:"File or path name too long",37:"No record locks available",38:"Function not implemented",39:"Directory not empty",40:"Too many symbolic links",42:"No message of desired type",43:"Identifier removed",44:"Channel number out of range",45:"Level 2 not synchronized",46:"Level 3 halted",47:"Level 3 reset",48:"Link number out of range",49:"Protocol driver not attached",50:"No CSI structure available",51:"Level 2 halted",52:"Invalid exchange",53:"Invalid request descriptor",54:"Exchange full",55:"No anode",56:"Invalid request code",57:"Invalid slot",59:"Bad font file fmt",60:"Device not a stream",61:"No data (for no delay io)",62:"Timer expired",63:"Out of streams resources",64:"Machine is not on the network",65:"Package not installed",66:"The object is remote",67:"The link has been severed",68:"Advertise error",69:"Srmount error",70:"Communication error on send",71:"Protocol error",72:"Multihop attempted",73:"Cross mount point (not really error)",74:"Trying to read unreadable message",75:"Value too large for defined data type",76:"Given log. name not unique",77:"f.d. invalid for this operation",78:"Remote address changed",79:"Can   access a needed shared lib",80:"Accessing a corrupted shared lib",81:".lib section in a.out corrupted",82:"Attempting to link in too many libs",83:"Attempting to exec a shared library",84:"Illegal byte sequence",86:"Streams pipe error",87:"Too many users",88:"Socket operation on non-socket",89:"Destination address required",90:"Message too long",91:"Protocol wrong type for socket",92:"Protocol not available",93:"Unknown protocol",94:"Socket type not supported",95:"Not supported",96:"Protocol family not supported",97:"Address family not supported by protocol family",98:"Address already in use",99:"Address not available",100:"Network interface is not configured",101:"Network is unreachable",102:"Connection reset by network",103:"Connection aborted",104:"Connection reset by peer",105:"No buffer space available",106:"Socket is already connected",107:"Socket is not connected",108:"Can't send after socket shutdown",109:"Too many references",110:"Connection timed out",111:"Connection refused",112:"Host is down",113:"Host is unreachable",114:"Socket already connected",115:"Connection already in progress",116:"Stale file handle",122:"Quota exceeded",123:"No medium (in tape drive)",125:"Operation canceled",130:"Previous owner died",131:"State not recoverable"};var PATH={splitPath:(function(filename){var splitPathRe=/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;return splitPathRe.exec(filename).slice(1)}),normalizeArray:(function(parts,allowAboveRoot){var up=0;for(var i=parts.length-1;i>=0;i--){var last=parts[i];if(last==="."){parts.splice(i,1)}else if(last===".."){parts.splice(i,1);up++}else if(up){parts.splice(i,1);up--}}if(allowAboveRoot){for(;up--;up){parts.unshift("..")}}return parts}),normalize:(function(path){var isAbsolute=path.charAt(0)==="/",trailingSlash=path.substr(-1)==="/";path=PATH.normalizeArray(path.split("/").filter((function(p){return!!p})),!isAbsolute).join("/");if(!path&&!isAbsolute){path="."}if(path&&trailingSlash){path+="/"}return(isAbsolute?"/":"")+path}),dirname:(function(path){var result=PATH.splitPath(path),root=result[0],dir=result[1];if(!root&&!dir){return"."}if(dir){dir=dir.substr(0,dir.length-1)}return root+dir}),basename:(function(path){if(path==="/")return"/";var lastSlash=path.lastIndexOf("/");if(lastSlash===-1)return path;return path.substr(lastSlash+1)}),extname:(function(path){return PATH.splitPath(path)[3]}),join:(function(){var paths=Array.prototype.slice.call(arguments,0);return PATH.normalize(paths.join("/"))}),join2:(function(l,r){return PATH.normalize(l+"/"+r)}),resolve:(function(){var resolvedPath="",resolvedAbsolute=false;for(var i=arguments.length-1;i>=-1&&!resolvedAbsolute;i--){var path=i>=0?arguments[i]:FS.cwd();if(typeof path!=="string"){throw new TypeError("Arguments to path.resolve must be strings")}else if(!path){return""}resolvedPath=path+"/"+resolvedPath;resolvedAbsolute=path.charAt(0)==="/"}resolvedPath=PATH.normalizeArray(resolvedPath.split("/").filter((function(p){return!!p})),!resolvedAbsolute).join("/");return(resolvedAbsolute?"/":"")+resolvedPath||"."}),relative:(function(from,to){from=PATH.resolve(from).substr(1);to=PATH.resolve(to).substr(1);function trim(arr){var start=0;for(;start<arr.length;start++){if(arr[start]!=="")break}var end=arr.length-1;for(;end>=0;end--){if(arr[end]!=="")break}if(start>end)return[];return arr.slice(start,end-start+1)}var fromParts=trim(from.split("/"));var toParts=trim(to.split("/"));var length=Math.min(fromParts.length,toParts.length);var samePartsLength=length;for(var i=0;i<length;i++){if(fromParts[i]!==toParts[i]){samePartsLength=i;break}}var outputParts=[];for(var i=samePartsLength;i<fromParts.length;i++){outputParts.push("..")}outputParts=outputParts.concat(toParts.slice(samePartsLength));return outputParts.join("/")})};var TTY={ttys:[],init:(function(){}),shutdown:(function(){}),register:(function(dev,ops){TTY.ttys[dev]={input:[],output:[],ops:ops};FS.registerDevice(dev,TTY.stream_ops)}),stream_ops:{open:(function(stream){var tty=TTY.ttys[stream.node.rdev];if(!tty){throw new FS.ErrnoError(ERRNO_CODES.ENODEV)}stream.tty=tty;stream.seekable=false}),close:(function(stream){stream.tty.ops.flush(stream.tty)}),flush:(function(stream){stream.tty.ops.flush(stream.tty)}),read:(function(stream,buffer,offset,length,pos){if(!stream.tty||!stream.tty.ops.get_char){throw new FS.ErrnoError(ERRNO_CODES.ENXIO)}var bytesRead=0;for(var i=0;i<length;i++){var result;try{result=stream.tty.ops.get_char(stream.tty)}catch(e){throw new FS.ErrnoError(ERRNO_CODES.EIO)}if(result===undefined&&bytesRead===0){throw new FS.ErrnoError(ERRNO_CODES.EAGAIN)}if(result===null||result===undefined)break;bytesRead++;buffer[offset+i]=result}if(bytesRead){stream.node.timestamp=Date.now()}return bytesRead}),write:(function(stream,buffer,offset,length,pos){if(!stream.tty||!stream.tty.ops.put_char){throw new FS.ErrnoError(ERRNO_CODES.ENXIO)}for(var i=0;i<length;i++){try{stream.tty.ops.put_char(stream.tty,buffer[offset+i])}catch(e){throw new FS.ErrnoError(ERRNO_CODES.EIO)}}if(length){stream.node.timestamp=Date.now()}return i})},default_tty_ops:{get_char:(function(tty){if(!tty.input.length){var result=null;if(ENVIRONMENT_IS_NODE){var BUFSIZE=256;var buf=new Buffer(BUFSIZE);var bytesRead=0;var fd=process.stdin.fd;var usingDevice=false;try{fd=fs.openSync("/dev/stdin","r");usingDevice=true}catch(e){}bytesRead=fs.readSync(fd,buf,0,BUFSIZE,null);if(usingDevice){fs.closeSync(fd)}if(bytesRead>0){result=buf.slice(0,bytesRead).toString("utf-8")}else{result=null}}else if(typeof window!="undefined"&&typeof window.prompt=="function"){result=window.prompt("Input: ");if(result!==null){result+="\n"}}else if(typeof readline=="function"){result=readline();if(result!==null){result+="\n"}}if(!result){return null}tty.input=intArrayFromString(result,true)}return tty.input.shift()}),put_char:(function(tty,val){if(val===null||val===10){Module["print"](UTF8ArrayToString(tty.output,0));tty.output=[]}else{if(val!=0)tty.output.push(val)}}),flush:(function(tty){if(tty.output&&tty.output.length>0){Module["print"](UTF8ArrayToString(tty.output,0));tty.output=[]}})},default_tty1_ops:{put_char:(function(tty,val){if(val===null||val===10){Module["printErr"](UTF8ArrayToString(tty.output,0));tty.output=[]}else{if(val!=0)tty.output.push(val)}}),flush:(function(tty){if(tty.output&&tty.output.length>0){Module["printErr"](UTF8ArrayToString(tty.output,0));tty.output=[]}})}};var MEMFS={ops_table:null,mount:(function(mount){return MEMFS.createNode(null,"/",16384|511,0)}),createNode:(function(parent,name,mode,dev){if(FS.isBlkdev(mode)||FS.isFIFO(mode)){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}if(!MEMFS.ops_table){MEMFS.ops_table={dir:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr,lookup:MEMFS.node_ops.lookup,mknod:MEMFS.node_ops.mknod,rename:MEMFS.node_ops.rename,unlink:MEMFS.node_ops.unlink,rmdir:MEMFS.node_ops.rmdir,readdir:MEMFS.node_ops.readdir,symlink:MEMFS.node_ops.symlink},stream:{llseek:MEMFS.stream_ops.llseek}},file:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr},stream:{llseek:MEMFS.stream_ops.llseek,read:MEMFS.stream_ops.read,write:MEMFS.stream_ops.write,allocate:MEMFS.stream_ops.allocate,mmap:MEMFS.stream_ops.mmap,msync:MEMFS.stream_ops.msync}},link:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr,readlink:MEMFS.node_ops.readlink},stream:{}},chrdev:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr},stream:FS.chrdev_stream_ops}}}var node=FS.createNode(parent,name,mode,dev);if(FS.isDir(node.mode)){node.node_ops=MEMFS.ops_table.dir.node;node.stream_ops=MEMFS.ops_table.dir.stream;node.contents={}}else if(FS.isFile(node.mode)){node.node_ops=MEMFS.ops_table.file.node;node.stream_ops=MEMFS.ops_table.file.stream;node.usedBytes=0;node.contents=null}else if(FS.isLink(node.mode)){node.node_ops=MEMFS.ops_table.link.node;node.stream_ops=MEMFS.ops_table.link.stream}else if(FS.isChrdev(node.mode)){node.node_ops=MEMFS.ops_table.chrdev.node;node.stream_ops=MEMFS.ops_table.chrdev.stream}node.timestamp=Date.now();if(parent){parent.contents[name]=node}return node}),getFileDataAsRegularArray:(function(node){if(node.contents&&node.contents.subarray){var arr=[];for(var i=0;i<node.usedBytes;++i)arr.push(node.contents[i]);return arr}return node.contents}),getFileDataAsTypedArray:(function(node){if(!node.contents)return new Uint8Array;if(node.contents.subarray)return node.contents.subarray(0,node.usedBytes);return new Uint8Array(node.contents)}),expandFileStorage:(function(node,newCapacity){if(node.contents&&node.contents.subarray&&newCapacity>node.contents.length){node.contents=MEMFS.getFileDataAsRegularArray(node);node.usedBytes=node.contents.length}if(!node.contents||node.contents.subarray){var prevCapacity=node.contents?node.contents.buffer.byteLength:0;if(prevCapacity>=newCapacity)return;var CAPACITY_DOUBLING_MAX=1024*1024;newCapacity=Math.max(newCapacity,prevCapacity*(prevCapacity<CAPACITY_DOUBLING_MAX?2:1.125)|0);if(prevCapacity!=0)newCapacity=Math.max(newCapacity,256);var oldContents=node.contents;node.contents=new Uint8Array(newCapacity);if(node.usedBytes>0)node.contents.set(oldContents.subarray(0,node.usedBytes),0);return}if(!node.contents&&newCapacity>0)node.contents=[];while(node.contents.length<newCapacity)node.contents.push(0)}),resizeFileStorage:(function(node,newSize){if(node.usedBytes==newSize)return;if(newSize==0){node.contents=null;node.usedBytes=0;return}if(!node.contents||node.contents.subarray){var oldContents=node.contents;node.contents=new Uint8Array(new ArrayBuffer(newSize));if(oldContents){node.contents.set(oldContents.subarray(0,Math.min(newSize,node.usedBytes)))}node.usedBytes=newSize;return}if(!node.contents)node.contents=[];if(node.contents.length>newSize)node.contents.length=newSize;else while(node.contents.length<newSize)node.contents.push(0);node.usedBytes=newSize}),node_ops:{getattr:(function(node){var attr={};attr.dev=FS.isChrdev(node.mode)?node.id:1;attr.ino=node.id;attr.mode=node.mode;attr.nlink=1;attr.uid=0;attr.gid=0;attr.rdev=node.rdev;if(FS.isDir(node.mode)){attr.size=4096}else if(FS.isFile(node.mode)){attr.size=node.usedBytes}else if(FS.isLink(node.mode)){attr.size=node.link.length}else{attr.size=0}attr.atime=new Date(node.timestamp);attr.mtime=new Date(node.timestamp);attr.ctime=new Date(node.timestamp);attr.blksize=4096;attr.blocks=Math.ceil(attr.size/attr.blksize);return attr}),setattr:(function(node,attr){if(attr.mode!==undefined){node.mode=attr.mode}if(attr.timestamp!==undefined){node.timestamp=attr.timestamp}if(attr.size!==undefined){MEMFS.resizeFileStorage(node,attr.size)}}),lookup:(function(parent,name){throw FS.genericErrors[ERRNO_CODES.ENOENT]}),mknod:(function(parent,name,mode,dev){return MEMFS.createNode(parent,name,mode,dev)}),rename:(function(old_node,new_dir,new_name){if(FS.isDir(old_node.mode)){var new_node;try{new_node=FS.lookupNode(new_dir,new_name)}catch(e){}if(new_node){for(var i in new_node.contents){throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY)}}}delete old_node.parent.contents[old_node.name];old_node.name=new_name;new_dir.contents[new_name]=old_node;old_node.parent=new_dir}),unlink:(function(parent,name){delete parent.contents[name]}),rmdir:(function(parent,name){var node=FS.lookupNode(parent,name);for(var i in node.contents){throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY)}delete parent.contents[name]}),readdir:(function(node){var entries=[".",".."];for(var key in node.contents){if(!node.contents.hasOwnProperty(key)){continue}entries.push(key)}return entries}),symlink:(function(parent,newname,oldpath){var node=MEMFS.createNode(parent,newname,511|40960,0);node.link=oldpath;return node}),readlink:(function(node){if(!FS.isLink(node.mode)){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}return node.link})},stream_ops:{read:(function(stream,buffer,offset,length,position){var contents=stream.node.contents;if(position>=stream.node.usedBytes)return 0;var size=Math.min(stream.node.usedBytes-position,length);assert(size>=0);if(size>8&&contents.subarray){buffer.set(contents.subarray(position,position+size),offset)}else{for(var i=0;i<size;i++)buffer[offset+i]=contents[position+i]}return size}),write:(function(stream,buffer,offset,length,position,canOwn){if(!length)return 0;var node=stream.node;node.timestamp=Date.now();if(buffer.subarray&&(!node.contents||node.contents.subarray)){if(canOwn){node.contents=buffer.subarray(offset,offset+length);node.usedBytes=length;return length}else if(node.usedBytes===0&&position===0){node.contents=new Uint8Array(buffer.subarray(offset,offset+length));node.usedBytes=length;return length}else if(position+length<=node.usedBytes){node.contents.set(buffer.subarray(offset,offset+length),position);return length}}MEMFS.expandFileStorage(node,position+length);if(node.contents.subarray&&buffer.subarray)node.contents.set(buffer.subarray(offset,offset+length),position);else{for(var i=0;i<length;i++){node.contents[position+i]=buffer[offset+i]}}node.usedBytes=Math.max(node.usedBytes,position+length);return length}),llseek:(function(stream,offset,whence){var position=offset;if(whence===1){position+=stream.position}else if(whence===2){if(FS.isFile(stream.node.mode)){position+=stream.node.usedBytes}}if(position<0){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}return position}),allocate:(function(stream,offset,length){MEMFS.expandFileStorage(stream.node,offset+length);stream.node.usedBytes=Math.max(stream.node.usedBytes,offset+length)}),mmap:(function(stream,buffer,offset,length,position,prot,flags){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(ERRNO_CODES.ENODEV)}var ptr;var allocated;var contents=stream.node.contents;if(!(flags&2)&&(contents.buffer===buffer||contents.buffer===buffer.buffer)){allocated=false;ptr=contents.byteOffset}else{if(position>0||position+length<stream.node.usedBytes){if(contents.subarray){contents=contents.subarray(position,position+length)}else{contents=Array.prototype.slice.call(contents,position,position+length)}}allocated=true;ptr=_malloc(length);if(!ptr){throw new FS.ErrnoError(ERRNO_CODES.ENOMEM)}buffer.set(contents,ptr)}return{ptr:ptr,allocated:allocated}}),msync:(function(stream,buffer,offset,length,mmapFlags){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(ERRNO_CODES.ENODEV)}if(mmapFlags&2){return 0}var bytesWritten=MEMFS.stream_ops.write(stream,buffer,0,length,offset,false);return 0})}};var IDBFS={dbs:{},indexedDB:(function(){if(typeof indexedDB!=="undefined")return indexedDB;var ret=null;if(typeof window==="object")ret=window.indexedDB||window.mozIndexedDB||window.webkitIndexedDB||window.msIndexedDB;assert(ret,"IDBFS used, but indexedDB not supported");return ret}),DB_VERSION:21,DB_STORE_NAME:"FILE_DATA",mount:(function(mount){return MEMFS.mount.apply(null,arguments)}),syncfs:(function(mount,populate,callback){IDBFS.getLocalSet(mount,(function(err,local){if(err)return callback(err);IDBFS.getRemoteSet(mount,(function(err,remote){if(err)return callback(err);var src=populate?remote:local;var dst=populate?local:remote;IDBFS.reconcile(src,dst,callback)}))}))}),getDB:(function(name,callback){var db=IDBFS.dbs[name];if(db){return callback(null,db)}var req;try{req=IDBFS.indexedDB().open(name,IDBFS.DB_VERSION)}catch(e){return callback(e)}req.onupgradeneeded=(function(e){var db=e.target.result;var transaction=e.target.transaction;var fileStore;if(db.objectStoreNames.contains(IDBFS.DB_STORE_NAME)){fileStore=transaction.objectStore(IDBFS.DB_STORE_NAME)}else{fileStore=db.createObjectStore(IDBFS.DB_STORE_NAME)}if(!fileStore.indexNames.contains("timestamp")){fileStore.createIndex("timestamp","timestamp",{unique:false})}});req.onsuccess=(function(){db=req.result;IDBFS.dbs[name]=db;callback(null,db)});req.onerror=(function(e){callback(this.error);e.preventDefault()})}),getLocalSet:(function(mount,callback){var entries={};function isRealDir(p){return p!=="."&&p!==".."}function toAbsolute(root){return(function(p){return PATH.join2(root,p)})}var check=FS.readdir(mount.mountpoint).filter(isRealDir).map(toAbsolute(mount.mountpoint));while(check.length){var path=check.pop();var stat;try{stat=FS.stat(path)}catch(e){return callback(e)}if(FS.isDir(stat.mode)){check.push.apply(check,FS.readdir(path).filter(isRealDir).map(toAbsolute(path)))}entries[path]={timestamp:stat.mtime}}return callback(null,{type:"local",entries:entries})}),getRemoteSet:(function(mount,callback){var entries={};IDBFS.getDB(mount.mountpoint,(function(err,db){if(err)return callback(err);var transaction=db.transaction([IDBFS.DB_STORE_NAME],"readonly");transaction.onerror=(function(e){callback(this.error);e.preventDefault()});var store=transaction.objectStore(IDBFS.DB_STORE_NAME);var index=store.index("timestamp");index.openKeyCursor().onsuccess=(function(event){var cursor=event.target.result;if(!cursor){return callback(null,{type:"remote",db:db,entries:entries})}entries[cursor.primaryKey]={timestamp:cursor.key};cursor.continue()})}))}),loadLocalEntry:(function(path,callback){var stat,node;try{var lookup=FS.lookupPath(path);node=lookup.node;stat=FS.stat(path)}catch(e){return callback(e)}if(FS.isDir(stat.mode)){return callback(null,{timestamp:stat.mtime,mode:stat.mode})}else if(FS.isFile(stat.mode)){node.contents=MEMFS.getFileDataAsTypedArray(node);return callback(null,{timestamp:stat.mtime,mode:stat.mode,contents:node.contents})}else{return callback(new Error("node type not supported"))}}),storeLocalEntry:(function(path,entry,callback){try{if(FS.isDir(entry.mode)){FS.mkdir(path,entry.mode)}else if(FS.isFile(entry.mode)){FS.writeFile(path,entry.contents,{encoding:"binary",canOwn:true})}else{return callback(new Error("node type not supported"))}FS.chmod(path,entry.mode);FS.utime(path,entry.timestamp,entry.timestamp)}catch(e){return callback(e)}callback(null)}),removeLocalEntry:(function(path,callback){try{var lookup=FS.lookupPath(path);var stat=FS.stat(path);if(FS.isDir(stat.mode)){FS.rmdir(path)}else if(FS.isFile(stat.mode)){FS.unlink(path)}}catch(e){return callback(e)}callback(null)}),loadRemoteEntry:(function(store,path,callback){var req=store.get(path);req.onsuccess=(function(event){callback(null,event.target.result)});req.onerror=(function(e){callback(this.error);e.preventDefault()})}),storeRemoteEntry:(function(store,path,entry,callback){var req=store.put(entry,path);req.onsuccess=(function(){callback(null)});req.onerror=(function(e){callback(this.error);e.preventDefault()})}),removeRemoteEntry:(function(store,path,callback){var req=store.delete(path);req.onsuccess=(function(){callback(null)});req.onerror=(function(e){callback(this.error);e.preventDefault()})}),reconcile:(function(src,dst,callback){var total=0;var create=[];Object.keys(src.entries).forEach((function(key){var e=src.entries[key];var e2=dst.entries[key];if(!e2||e.timestamp>e2.timestamp){create.push(key);total++}}));var remove=[];Object.keys(dst.entries).forEach((function(key){var e=dst.entries[key];var e2=src.entries[key];if(!e2){remove.push(key);total++}}));if(!total){return callback(null)}var errored=false;var completed=0;var db=src.type==="remote"?src.db:dst.db;var transaction=db.transaction([IDBFS.DB_STORE_NAME],"readwrite");var store=transaction.objectStore(IDBFS.DB_STORE_NAME);function done(err){if(err){if(!done.errored){done.errored=true;return callback(err)}return}if(++completed>=total){return callback(null)}}transaction.onerror=(function(e){done(this.error);e.preventDefault()});create.sort().forEach((function(path){if(dst.type==="local"){IDBFS.loadRemoteEntry(store,path,(function(err,entry){if(err)return done(err);IDBFS.storeLocalEntry(path,entry,done)}))}else{IDBFS.loadLocalEntry(path,(function(err,entry){if(err)return done(err);IDBFS.storeRemoteEntry(store,path,entry,done)}))}}));remove.sort().reverse().forEach((function(path){if(dst.type==="local"){IDBFS.removeLocalEntry(path,done)}else{IDBFS.removeRemoteEntry(store,path,done)}}))})};var NODEFS={isWindows:false,staticInit:(function(){NODEFS.isWindows=!!process.platform.match(/^win/)}),mount:(function(mount){assert(ENVIRONMENT_IS_NODE);return NODEFS.createNode(null,"/",NODEFS.getMode(mount.opts.root),0)}),createNode:(function(parent,name,mode,dev){if(!FS.isDir(mode)&&!FS.isFile(mode)&&!FS.isLink(mode)){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}var node=FS.createNode(parent,name,mode);node.node_ops=NODEFS.node_ops;node.stream_ops=NODEFS.stream_ops;return node}),getMode:(function(path){var stat;try{stat=fs.lstatSync(path);if(NODEFS.isWindows){stat.mode=stat.mode|(stat.mode&146)>>1}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}return stat.mode}),realPath:(function(node){var parts=[];while(node.parent!==node){parts.push(node.name);node=node.parent}parts.push(node.mount.opts.root);parts.reverse();return PATH.join.apply(null,parts)}),flagsToPermissionStringMap:{0:"r",1:"r+",2:"r+",64:"r",65:"r+",66:"r+",129:"rx+",193:"rx+",514:"w+",577:"w",578:"w+",705:"wx",706:"wx+",1024:"a",1025:"a",1026:"a+",1089:"a",1090:"a+",1153:"ax",1154:"ax+",1217:"ax",1218:"ax+",4096:"rs",4098:"rs+"},flagsToPermissionString:(function(flags){flags&=~32768;if(flags in NODEFS.flagsToPermissionStringMap){return NODEFS.flagsToPermissionStringMap[flags]}else{throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}}),node_ops:{getattr:(function(node){var path=NODEFS.realPath(node);var stat;try{stat=fs.lstatSync(path)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}if(NODEFS.isWindows&&!stat.blksize){stat.blksize=4096}if(NODEFS.isWindows&&!stat.blocks){stat.blocks=(stat.size+stat.blksize-1)/stat.blksize|0}return{dev:stat.dev,ino:stat.ino,mode:stat.mode,nlink:stat.nlink,uid:stat.uid,gid:stat.gid,rdev:stat.rdev,size:stat.size,atime:stat.atime,mtime:stat.mtime,ctime:stat.ctime,blksize:stat.blksize,blocks:stat.blocks}}),setattr:(function(node,attr){var path=NODEFS.realPath(node);try{if(attr.mode!==undefined){fs.chmodSync(path,attr.mode);node.mode=attr.mode}if(attr.timestamp!==undefined){var date=new Date(attr.timestamp);fs.utimesSync(path,date,date)}if(attr.size!==undefined){fs.truncateSync(path,attr.size)}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}}),lookup:(function(parent,name){var path=PATH.join2(NODEFS.realPath(parent),name);var mode=NODEFS.getMode(path);return NODEFS.createNode(parent,name,mode)}),mknod:(function(parent,name,mode,dev){var node=NODEFS.createNode(parent,name,mode,dev);var path=NODEFS.realPath(node);try{if(FS.isDir(node.mode)){fs.mkdirSync(path,node.mode)}else{fs.writeFileSync(path,"",{mode:node.mode})}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}return node}),rename:(function(oldNode,newDir,newName){var oldPath=NODEFS.realPath(oldNode);var newPath=PATH.join2(NODEFS.realPath(newDir),newName);try{fs.renameSync(oldPath,newPath)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}}),unlink:(function(parent,name){var path=PATH.join2(NODEFS.realPath(parent),name);try{fs.unlinkSync(path)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}}),rmdir:(function(parent,name){var path=PATH.join2(NODEFS.realPath(parent),name);try{fs.rmdirSync(path)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}}),readdir:(function(node){var path=NODEFS.realPath(node);try{return fs.readdirSync(path)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}}),symlink:(function(parent,newName,oldPath){var newPath=PATH.join2(NODEFS.realPath(parent),newName);try{fs.symlinkSync(oldPath,newPath)}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}}),readlink:(function(node){var path=NODEFS.realPath(node);try{path=fs.readlinkSync(path);path=NODEJS_PATH.relative(NODEJS_PATH.resolve(node.mount.opts.root),path);return path}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}})},stream_ops:{open:(function(stream){var path=NODEFS.realPath(stream.node);try{if(FS.isFile(stream.node.mode)){stream.nfd=fs.openSync(path,NODEFS.flagsToPermissionString(stream.flags))}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}}),close:(function(stream){try{if(FS.isFile(stream.node.mode)&&stream.nfd){fs.closeSync(stream.nfd)}}catch(e){if(!e.code)throw e;throw new FS.ErrnoError(ERRNO_CODES[e.code])}}),read:(function(stream,buffer,offset,length,position){if(length===0)return 0;var nbuffer=new Buffer(length);var res;try{res=fs.readSync(stream.nfd,nbuffer,0,length,position)}catch(e){throw new FS.ErrnoError(ERRNO_CODES[e.code])}if(res>0){for(var i=0;i<res;i++){buffer[offset+i]=nbuffer[i]}}return res}),write:(function(stream,buffer,offset,length,position){var nbuffer=new Buffer(buffer.subarray(offset,offset+length));var res;try{res=fs.writeSync(stream.nfd,nbuffer,0,length,position)}catch(e){throw new FS.ErrnoError(ERRNO_CODES[e.code])}return res}),llseek:(function(stream,offset,whence){var position=offset;if(whence===1){position+=stream.position}else if(whence===2){if(FS.isFile(stream.node.mode)){try{var stat=fs.fstatSync(stream.nfd);position+=stat.size}catch(e){throw new FS.ErrnoError(ERRNO_CODES[e.code])}}}if(position<0){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}return position})}};var WORKERFS={DIR_MODE:16895,FILE_MODE:33279,reader:null,mount:(function(mount){assert(ENVIRONMENT_IS_WORKER);if(!WORKERFS.reader)WORKERFS.reader=new FileReaderSync;var root=WORKERFS.createNode(null,"/",WORKERFS.DIR_MODE,0);var createdParents={};function ensureParent(path){var parts=path.split("/");var parent=root;for(var i=0;i<parts.length-1;i++){var curr=parts.slice(0,i+1).join("/");if(!createdParents[curr]){createdParents[curr]=WORKERFS.createNode(parent,curr,WORKERFS.DIR_MODE,0)}parent=createdParents[curr]}return parent}function base(path){var parts=path.split("/");return parts[parts.length-1]}Array.prototype.forEach.call(mount.opts["files"]||[],(function(file){WORKERFS.createNode(ensureParent(file.name),base(file.name),WORKERFS.FILE_MODE,0,file,file.lastModifiedDate)}));(mount.opts["blobs"]||[]).forEach((function(obj){WORKERFS.createNode(ensureParent(obj["name"]),base(obj["name"]),WORKERFS.FILE_MODE,0,obj["data"])}));(mount.opts["packages"]||[]).forEach((function(pack){pack["metadata"].files.forEach((function(file){var name=file.filename.substr(1);WORKERFS.createNode(ensureParent(name),base(name),WORKERFS.FILE_MODE,0,pack["blob"].slice(file.start,file.end))}))}));return root}),createNode:(function(parent,name,mode,dev,contents,mtime){var node=FS.createNode(parent,name,mode);node.mode=mode;node.node_ops=WORKERFS.node_ops;node.stream_ops=WORKERFS.stream_ops;node.timestamp=(mtime||new Date).getTime();assert(WORKERFS.FILE_MODE!==WORKERFS.DIR_MODE);if(mode===WORKERFS.FILE_MODE){node.size=contents.size;node.contents=contents}else{node.size=4096;node.contents={}}if(parent){parent.contents[name]=node}return node}),node_ops:{getattr:(function(node){return{dev:1,ino:undefined,mode:node.mode,nlink:1,uid:0,gid:0,rdev:undefined,size:node.size,atime:new Date(node.timestamp),mtime:new Date(node.timestamp),ctime:new Date(node.timestamp),blksize:4096,blocks:Math.ceil(node.size/4096)}}),setattr:(function(node,attr){if(attr.mode!==undefined){node.mode=attr.mode}if(attr.timestamp!==undefined){node.timestamp=attr.timestamp}}),lookup:(function(parent,name){throw new FS.ErrnoError(ERRNO_CODES.ENOENT)}),mknod:(function(parent,name,mode,dev){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}),rename:(function(oldNode,newDir,newName){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}),unlink:(function(parent,name){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}),rmdir:(function(parent,name){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}),readdir:(function(node){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}),symlink:(function(parent,newName,oldPath){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}),readlink:(function(node){throw new FS.ErrnoError(ERRNO_CODES.EPERM)})},stream_ops:{read:(function(stream,buffer,offset,length,position){if(position>=stream.node.size)return 0;var chunk=stream.node.contents.slice(position,position+length);var ab=WORKERFS.reader.readAsArrayBuffer(chunk);buffer.set(new Uint8Array(ab),offset);return chunk.size}),write:(function(stream,buffer,offset,length,position){throw new FS.ErrnoError(ERRNO_CODES.EIO)}),llseek:(function(stream,offset,whence){var position=offset;if(whence===1){position+=stream.position}else if(whence===2){if(FS.isFile(stream.node.mode)){position+=stream.node.size}}if(position<0){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}return position})}};var _stdin=allocate(1,"i32*",ALLOC_STATIC);var _stdout=allocate(1,"i32*",ALLOC_STATIC);var _stderr=allocate(1,"i32*",ALLOC_STATIC);var FS={root:null,mounts:[],devices:[null],streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,trackingDelegate:{},tracking:{openFlags:{READ:1,WRITE:2}},ErrnoError:null,genericErrors:{},filesystems:null,handleFSError:(function(e){if(!(e instanceof FS.ErrnoError))throw e+" : "+stackTrace();return ___setErrNo(e.errno)}),lookupPath:(function(path,opts){path=PATH.resolve(FS.cwd(),path);opts=opts||{};if(!path)return{path:"",node:null};var defaults={follow_mount:true,recurse_count:0};for(var key in defaults){if(opts[key]===undefined){opts[key]=defaults[key]}}if(opts.recurse_count>8){throw new FS.ErrnoError(ERRNO_CODES.ELOOP)}var parts=PATH.normalizeArray(path.split("/").filter((function(p){return!!p})),false);var current=FS.root;var current_path="/";for(var i=0;i<parts.length;i++){var islast=i===parts.length-1;if(islast&&opts.parent){break}current=FS.lookupNode(current,parts[i]);current_path=PATH.join2(current_path,parts[i]);if(FS.isMountpoint(current)){if(!islast||islast&&opts.follow_mount){current=current.mounted.root}}if(!islast||opts.follow){var count=0;while(FS.isLink(current.mode)){var link=FS.readlink(current_path);current_path=PATH.resolve(PATH.dirname(current_path),link);var lookup=FS.lookupPath(current_path,{recurse_count:opts.recurse_count});current=lookup.node;if(count++>40){throw new FS.ErrnoError(ERRNO_CODES.ELOOP)}}}}return{path:current_path,node:current}}),getPath:(function(node){var path;while(true){if(FS.isRoot(node)){var mount=node.mount.mountpoint;if(!path)return mount;return mount[mount.length-1]!=="/"?mount+"/"+path:mount+path}path=path?node.name+"/"+path:node.name;node=node.parent}}),hashName:(function(parentid,name){var hash=0;for(var i=0;i<name.length;i++){hash=(hash<<5)-hash+name.charCodeAt(i)|0}return(parentid+hash>>>0)%FS.nameTable.length}),hashAddNode:(function(node){var hash=FS.hashName(node.parent.id,node.name);node.name_next=FS.nameTable[hash];FS.nameTable[hash]=node}),hashRemoveNode:(function(node){var hash=FS.hashName(node.parent.id,node.name);if(FS.nameTable[hash]===node){FS.nameTable[hash]=node.name_next}else{var current=FS.nameTable[hash];while(current){if(current.name_next===node){current.name_next=node.name_next;break}current=current.name_next}}}),lookupNode:(function(parent,name){var err=FS.mayLookup(parent);if(err){throw new FS.ErrnoError(err,parent)}var hash=FS.hashName(parent.id,name);for(var node=FS.nameTable[hash];node;node=node.name_next){var nodeName=node.name;if(node.parent.id===parent.id&&nodeName===name){return node}}return FS.lookup(parent,name)}),createNode:(function(parent,name,mode,rdev){if(!FS.FSNode){FS.FSNode=(function(parent,name,mode,rdev){if(!parent){parent=this}this.parent=parent;this.mount=parent.mount;this.mounted=null;this.id=FS.nextInode++;this.name=name;this.mode=mode;this.node_ops={};this.stream_ops={};this.rdev=rdev});FS.FSNode.prototype={};var readMode=292|73;var writeMode=146;Object.defineProperties(FS.FSNode.prototype,{read:{get:(function(){return(this.mode&readMode)===readMode}),set:(function(val){val?this.mode|=readMode:this.mode&=~readMode})},write:{get:(function(){return(this.mode&writeMode)===writeMode}),set:(function(val){val?this.mode|=writeMode:this.mode&=~writeMode})},isFolder:{get:(function(){return FS.isDir(this.mode)})},isDevice:{get:(function(){return FS.isChrdev(this.mode)})}})}var node=new FS.FSNode(parent,name,mode,rdev);FS.hashAddNode(node);return node}),destroyNode:(function(node){FS.hashRemoveNode(node)}),isRoot:(function(node){return node===node.parent}),isMountpoint:(function(node){return!!node.mounted}),isFile:(function(mode){return(mode&61440)===32768}),isDir:(function(mode){return(mode&61440)===16384}),isLink:(function(mode){return(mode&61440)===40960}),isChrdev:(function(mode){return(mode&61440)===8192}),isBlkdev:(function(mode){return(mode&61440)===24576}),isFIFO:(function(mode){return(mode&61440)===4096}),isSocket:(function(mode){return(mode&49152)===49152}),flagModes:{"r":0,"rs":1052672,"r+":2,"w":577,"wx":705,"xw":705,"w+":578,"wx+":706,"xw+":706,"a":1089,"ax":1217,"xa":1217,"a+":1090,"ax+":1218,"xa+":1218},modeStringToFlags:(function(str){var flags=FS.flagModes[str];if(typeof flags==="undefined"){throw new Error("Unknown file open mode: "+str)}return flags}),flagsToPermissionString:(function(flag){var perms=["r","w","rw"][flag&3];if(flag&512){perms+="w"}return perms}),nodePermissions:(function(node,perms){if(FS.ignorePermissions){return 0}if(perms.indexOf("r")!==-1&&!(node.mode&292)){return ERRNO_CODES.EACCES}else if(perms.indexOf("w")!==-1&&!(node.mode&146)){return ERRNO_CODES.EACCES}else if(perms.indexOf("x")!==-1&&!(node.mode&73)){return ERRNO_CODES.EACCES}return 0}),mayLookup:(function(dir){var err=FS.nodePermissions(dir,"x");if(err)return err;if(!dir.node_ops.lookup)return ERRNO_CODES.EACCES;return 0}),mayCreate:(function(dir,name){try{var node=FS.lookupNode(dir,name);return ERRNO_CODES.EEXIST}catch(e){}return FS.nodePermissions(dir,"wx")}),mayDelete:(function(dir,name,isdir){var node;try{node=FS.lookupNode(dir,name)}catch(e){return e.errno}var err=FS.nodePermissions(dir,"wx");if(err){return err}if(isdir){if(!FS.isDir(node.mode)){return ERRNO_CODES.ENOTDIR}if(FS.isRoot(node)||FS.getPath(node)===FS.cwd()){return ERRNO_CODES.EBUSY}}else{if(FS.isDir(node.mode)){return ERRNO_CODES.EISDIR}}return 0}),mayOpen:(function(node,flags){if(!node){return ERRNO_CODES.ENOENT}if(FS.isLink(node.mode)){return ERRNO_CODES.ELOOP}else if(FS.isDir(node.mode)){if((flags&2097155)!==0||flags&512){return ERRNO_CODES.EISDIR}}return FS.nodePermissions(node,FS.flagsToPermissionString(flags))}),MAX_OPEN_FDS:4096,nextfd:(function(fd_start,fd_end){fd_start=fd_start||0;fd_end=fd_end||FS.MAX_OPEN_FDS;for(var fd=fd_start;fd<=fd_end;fd++){if(!FS.streams[fd]){return fd}}throw new FS.ErrnoError(ERRNO_CODES.EMFILE)}),getStream:(function(fd){return FS.streams[fd]}),createStream:(function(stream,fd_start,fd_end){if(!FS.FSStream){FS.FSStream=(function(){});FS.FSStream.prototype={};Object.defineProperties(FS.FSStream.prototype,{object:{get:(function(){return this.node}),set:(function(val){this.node=val})},isRead:{get:(function(){return(this.flags&2097155)!==1})},isWrite:{get:(function(){return(this.flags&2097155)!==0})},isAppend:{get:(function(){return this.flags&1024})}})}var newStream=new FS.FSStream;for(var p in stream){newStream[p]=stream[p]}stream=newStream;var fd=FS.nextfd(fd_start,fd_end);stream.fd=fd;FS.streams[fd]=stream;return stream}),closeStream:(function(fd){FS.streams[fd]=null}),chrdev_stream_ops:{open:(function(stream){var device=FS.getDevice(stream.node.rdev);stream.stream_ops=device.stream_ops;if(stream.stream_ops.open){stream.stream_ops.open(stream)}}),llseek:(function(){throw new FS.ErrnoError(ERRNO_CODES.ESPIPE)})},major:(function(dev){return dev>>8}),minor:(function(dev){return dev&255}),makedev:(function(ma,mi){return ma<<8|mi}),registerDevice:(function(dev,ops){FS.devices[dev]={stream_ops:ops}}),getDevice:(function(dev){return FS.devices[dev]}),getMounts:(function(mount){var mounts=[];var check=[mount];while(check.length){var m=check.pop();mounts.push(m);check.push.apply(check,m.mounts)}return mounts}),syncfs:(function(populate,callback){if(typeof populate==="function"){callback=populate;populate=false}var mounts=FS.getMounts(FS.root.mount);var completed=0;function done(err){if(err){if(!done.errored){done.errored=true;return callback(err)}return}if(++completed>=mounts.length){callback(null)}}mounts.forEach((function(mount){if(!mount.type.syncfs){return done(null)}mount.type.syncfs(mount,populate,done)}))}),mount:(function(type,opts,mountpoint){var root=mountpoint==="/";var pseudo=!mountpoint;var node;if(root&&FS.root){throw new FS.ErrnoError(ERRNO_CODES.EBUSY)}else if(!root&&!pseudo){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});mountpoint=lookup.path;node=lookup.node;if(FS.isMountpoint(node)){throw new FS.ErrnoError(ERRNO_CODES.EBUSY)}if(!FS.isDir(node.mode)){throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR)}}var mount={type:type,opts:opts,mountpoint:mountpoint,mounts:[]};var mountRoot=type.mount(mount);mountRoot.mount=mount;mount.root=mountRoot;if(root){FS.root=mountRoot}else if(node){node.mounted=mount;if(node.mount){node.mount.mounts.push(mount)}}return mountRoot}),unmount:(function(mountpoint){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});if(!FS.isMountpoint(lookup.node)){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}var node=lookup.node;var mount=node.mounted;var mounts=FS.getMounts(mount);Object.keys(FS.nameTable).forEach((function(hash){var current=FS.nameTable[hash];while(current){var next=current.name_next;if(mounts.indexOf(current.mount)!==-1){FS.destroyNode(current)}current=next}}));node.mounted=null;var idx=node.mount.mounts.indexOf(mount);assert(idx!==-1);node.mount.mounts.splice(idx,1)}),lookup:(function(parent,name){return parent.node_ops.lookup(parent,name)}),mknod:(function(path,mode,dev){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);if(!name||name==="."||name===".."){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}var err=FS.mayCreate(parent,name);if(err){throw new FS.ErrnoError(err)}if(!parent.node_ops.mknod){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}return parent.node_ops.mknod(parent,name,mode,dev)}),create:(function(path,mode){mode=mode!==undefined?mode:438;mode&=4095;mode|=32768;return FS.mknod(path,mode,0)}),mkdir:(function(path,mode){mode=mode!==undefined?mode:511;mode&=511|512;mode|=16384;return FS.mknod(path,mode,0)}),mkdev:(function(path,mode,dev){if(typeof dev==="undefined"){dev=mode;mode=438}mode|=8192;return FS.mknod(path,mode,dev)}),symlink:(function(oldpath,newpath){if(!PATH.resolve(oldpath)){throw new FS.ErrnoError(ERRNO_CODES.ENOENT)}var lookup=FS.lookupPath(newpath,{parent:true});var parent=lookup.node;if(!parent){throw new FS.ErrnoError(ERRNO_CODES.ENOENT)}var newname=PATH.basename(newpath);var err=FS.mayCreate(parent,newname);if(err){throw new FS.ErrnoError(err)}if(!parent.node_ops.symlink){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}return parent.node_ops.symlink(parent,newname,oldpath)}),rename:(function(old_path,new_path){var old_dirname=PATH.dirname(old_path);var new_dirname=PATH.dirname(new_path);var old_name=PATH.basename(old_path);var new_name=PATH.basename(new_path);var lookup,old_dir,new_dir;try{lookup=FS.lookupPath(old_path,{parent:true});old_dir=lookup.node;lookup=FS.lookupPath(new_path,{parent:true});new_dir=lookup.node}catch(e){throw new FS.ErrnoError(ERRNO_CODES.EBUSY)}if(!old_dir||!new_dir)throw new FS.ErrnoError(ERRNO_CODES.ENOENT);if(old_dir.mount!==new_dir.mount){throw new FS.ErrnoError(ERRNO_CODES.EXDEV)}var old_node=FS.lookupNode(old_dir,old_name);var relative=PATH.relative(old_path,new_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}relative=PATH.relative(new_path,old_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY)}var new_node;try{new_node=FS.lookupNode(new_dir,new_name)}catch(e){}if(old_node===new_node){return}var isdir=FS.isDir(old_node.mode);var err=FS.mayDelete(old_dir,old_name,isdir);if(err){throw new FS.ErrnoError(err)}err=new_node?FS.mayDelete(new_dir,new_name,isdir):FS.mayCreate(new_dir,new_name);if(err){throw new FS.ErrnoError(err)}if(!old_dir.node_ops.rename){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}if(FS.isMountpoint(old_node)||new_node&&FS.isMountpoint(new_node)){throw new FS.ErrnoError(ERRNO_CODES.EBUSY)}if(new_dir!==old_dir){err=FS.nodePermissions(old_dir,"w");if(err){throw new FS.ErrnoError(err)}}try{if(FS.trackingDelegate["willMovePath"]){FS.trackingDelegate["willMovePath"](old_path,new_path)}}catch(e){console.log("FS.trackingDelegate['willMovePath']('"+old_path+"', '"+new_path+"') threw an exception: "+e.message)}FS.hashRemoveNode(old_node);try{old_dir.node_ops.rename(old_node,new_dir,new_name)}catch(e){throw e}finally{FS.hashAddNode(old_node)}try{if(FS.trackingDelegate["onMovePath"])FS.trackingDelegate["onMovePath"](old_path,new_path)}catch(e){console.log("FS.trackingDelegate['onMovePath']('"+old_path+"', '"+new_path+"') threw an exception: "+e.message)}}),rmdir:(function(path){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);var node=FS.lookupNode(parent,name);var err=FS.mayDelete(parent,name,true);if(err){throw new FS.ErrnoError(err)}if(!parent.node_ops.rmdir){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}if(FS.isMountpoint(node)){throw new FS.ErrnoError(ERRNO_CODES.EBUSY)}try{if(FS.trackingDelegate["willDeletePath"]){FS.trackingDelegate["willDeletePath"](path)}}catch(e){console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: "+e.message)}parent.node_ops.rmdir(parent,name);FS.destroyNode(node);try{if(FS.trackingDelegate["onDeletePath"])FS.trackingDelegate["onDeletePath"](path)}catch(e){console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: "+e.message)}}),readdir:(function(path){var lookup=FS.lookupPath(path,{follow:true});var node=lookup.node;if(!node.node_ops.readdir){throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR)}return node.node_ops.readdir(node)}),unlink:(function(path){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);var node=FS.lookupNode(parent,name);var err=FS.mayDelete(parent,name,false);if(err){if(err===ERRNO_CODES.EISDIR)err=ERRNO_CODES.EPERM;throw new FS.ErrnoError(err)}if(!parent.node_ops.unlink){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}if(FS.isMountpoint(node)){throw new FS.ErrnoError(ERRNO_CODES.EBUSY)}try{if(FS.trackingDelegate["willDeletePath"]){FS.trackingDelegate["willDeletePath"](path)}}catch(e){console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: "+e.message)}parent.node_ops.unlink(parent,name);FS.destroyNode(node);try{if(FS.trackingDelegate["onDeletePath"])FS.trackingDelegate["onDeletePath"](path)}catch(e){console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: "+e.message)}}),readlink:(function(path){var lookup=FS.lookupPath(path);var link=lookup.node;if(!link){throw new FS.ErrnoError(ERRNO_CODES.ENOENT)}if(!link.node_ops.readlink){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}return PATH.resolve(FS.getPath(link.parent),link.node_ops.readlink(link))}),stat:(function(path,dontFollow){var lookup=FS.lookupPath(path,{follow:!dontFollow});var node=lookup.node;if(!node){throw new FS.ErrnoError(ERRNO_CODES.ENOENT)}if(!node.node_ops.getattr){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}return node.node_ops.getattr(node)}),lstat:(function(path){return FS.stat(path,true)}),chmod:(function(path,mode,dontFollow){var node;if(typeof path==="string"){var lookup=FS.lookupPath(path,{follow:!dontFollow});node=lookup.node}else{node=path}if(!node.node_ops.setattr){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}node.node_ops.setattr(node,{mode:mode&4095|node.mode&~4095,timestamp:Date.now()})}),lchmod:(function(path,mode){FS.chmod(path,mode,true)}),fchmod:(function(fd,mode){var stream=FS.getStream(fd);if(!stream){throw new FS.ErrnoError(ERRNO_CODES.EBADF)}FS.chmod(stream.node,mode)}),chown:(function(path,uid,gid,dontFollow){var node;if(typeof path==="string"){var lookup=FS.lookupPath(path,{follow:!dontFollow});node=lookup.node}else{node=path}if(!node.node_ops.setattr){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}node.node_ops.setattr(node,{timestamp:Date.now()})}),lchown:(function(path,uid,gid){FS.chown(path,uid,gid,true)}),fchown:(function(fd,uid,gid){var stream=FS.getStream(fd);if(!stream){throw new FS.ErrnoError(ERRNO_CODES.EBADF)}FS.chown(stream.node,uid,gid)}),truncate:(function(path,len){if(len<0){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}var node;if(typeof path==="string"){var lookup=FS.lookupPath(path,{follow:true});node=lookup.node}else{node=path}if(!node.node_ops.setattr){throw new FS.ErrnoError(ERRNO_CODES.EPERM)}if(FS.isDir(node.mode)){throw new FS.ErrnoError(ERRNO_CODES.EISDIR)}if(!FS.isFile(node.mode)){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}var err=FS.nodePermissions(node,"w");if(err){throw new FS.ErrnoError(err)}node.node_ops.setattr(node,{size:len,timestamp:Date.now()})}),ftruncate:(function(fd,len){var stream=FS.getStream(fd);if(!stream){throw new FS.ErrnoError(ERRNO_CODES.EBADF)}if((stream.flags&2097155)===0){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}FS.truncate(stream.node,len)}),utime:(function(path,atime,mtime){var lookup=FS.lookupPath(path,{follow:true});var node=lookup.node;node.node_ops.setattr(node,{timestamp:Math.max(atime,mtime)})}),open:(function(path,flags,mode,fd_start,fd_end){if(path===""){throw new FS.ErrnoError(ERRNO_CODES.ENOENT)}flags=typeof flags==="string"?FS.modeStringToFlags(flags):flags;mode=typeof mode==="undefined"?438:mode;if(flags&64){mode=mode&4095|32768}else{mode=0}var node;if(typeof path==="object"){node=path}else{path=PATH.normalize(path);try{var lookup=FS.lookupPath(path,{follow:!(flags&131072)});node=lookup.node}catch(e){}}var created=false;if(flags&64){if(node){if(flags&128){throw new FS.ErrnoError(ERRNO_CODES.EEXIST)}}else{node=FS.mknod(path,mode,0);created=true}}if(!node){throw new FS.ErrnoError(ERRNO_CODES.ENOENT)}if(FS.isChrdev(node.mode)){flags&=~512}if(flags&65536&&!FS.isDir(node.mode)){throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR)}if(!created){var err=FS.mayOpen(node,flags);if(err){throw new FS.ErrnoError(err)}}if(flags&512){FS.truncate(node,0)}flags&=~(128|512);var stream=FS.createStream({node:node,path:FS.getPath(node),flags:flags,seekable:true,position:0,stream_ops:node.stream_ops,ungotten:[],error:false},fd_start,fd_end);if(stream.stream_ops.open){stream.stream_ops.open(stream)}if(Module["logReadFiles"]&&!(flags&1)){if(!FS.readFiles)FS.readFiles={};if(!(path in FS.readFiles)){FS.readFiles[path]=1;Module["printErr"]("read file: "+path)}}try{if(FS.trackingDelegate["onOpenFile"]){var trackingFlags=0;if((flags&2097155)!==1){trackingFlags|=FS.tracking.openFlags.READ}if((flags&2097155)!==0){trackingFlags|=FS.tracking.openFlags.WRITE}FS.trackingDelegate["onOpenFile"](path,trackingFlags)}}catch(e){console.log("FS.trackingDelegate['onOpenFile']('"+path+"', flags) threw an exception: "+e.message)}return stream}),close:(function(stream){if(stream.getdents)stream.getdents=null;try{if(stream.stream_ops.close){stream.stream_ops.close(stream)}}catch(e){throw e}finally{FS.closeStream(stream.fd)}}),llseek:(function(stream,offset,whence){if(!stream.seekable||!stream.stream_ops.llseek){throw new FS.ErrnoError(ERRNO_CODES.ESPIPE)}stream.position=stream.stream_ops.llseek(stream,offset,whence);stream.ungotten=[];return stream.position}),read:(function(stream,buffer,offset,length,position){if(length<0||position<0){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}if((stream.flags&2097155)===1){throw new FS.ErrnoError(ERRNO_CODES.EBADF)}if(FS.isDir(stream.node.mode)){throw new FS.ErrnoError(ERRNO_CODES.EISDIR)}if(!stream.stream_ops.read){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}var seeking=true;if(typeof position==="undefined"){position=stream.position;seeking=false}else if(!stream.seekable){throw new FS.ErrnoError(ERRNO_CODES.ESPIPE)}var bytesRead=stream.stream_ops.read(stream,buffer,offset,length,position);if(!seeking)stream.position+=bytesRead;return bytesRead}),write:(function(stream,buffer,offset,length,position,canOwn){if(length<0||position<0){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}if((stream.flags&2097155)===0){throw new FS.ErrnoError(ERRNO_CODES.EBADF)}if(FS.isDir(stream.node.mode)){throw new FS.ErrnoError(ERRNO_CODES.EISDIR)}if(!stream.stream_ops.write){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}if(stream.flags&1024){FS.llseek(stream,0,2)}var seeking=true;if(typeof position==="undefined"){position=stream.position;seeking=false}else if(!stream.seekable){throw new FS.ErrnoError(ERRNO_CODES.ESPIPE)}var bytesWritten=stream.stream_ops.write(stream,buffer,offset,length,position,canOwn);if(!seeking)stream.position+=bytesWritten;try{if(stream.path&&FS.trackingDelegate["onWriteToFile"])FS.trackingDelegate["onWriteToFile"](stream.path)}catch(e){console.log("FS.trackingDelegate['onWriteToFile']('"+path+"') threw an exception: "+e.message)}return bytesWritten}),allocate:(function(stream,offset,length){if(offset<0||length<=0){throw new FS.ErrnoError(ERRNO_CODES.EINVAL)}if((stream.flags&2097155)===0){throw new FS.ErrnoError(ERRNO_CODES.EBADF)}if(!FS.isFile(stream.node.mode)&&!FS.isDir(node.mode)){throw new FS.ErrnoError(ERRNO_CODES.ENODEV)}if(!stream.stream_ops.allocate){throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP)}stream.stream_ops.allocate(stream,offset,length)}),mmap:(function(stream,buffer,offset,length,position,prot,flags){if((stream.flags&2097155)===1){throw new FS.ErrnoError(ERRNO_CODES.EACCES)}if(!stream.stream_ops.mmap){throw new FS.ErrnoError(ERRNO_CODES.ENODEV)}return stream.stream_ops.mmap(stream,buffer,offset,length,position,prot,flags)}),msync:(function(stream,buffer,offset,length,mmapFlags){if(!stream||!stream.stream_ops.msync){return 0}return stream.stream_ops.msync(stream,buffer,offset,length,mmapFlags)}),munmap:(function(stream){return 0}),ioctl:(function(stream,cmd,arg){if(!stream.stream_ops.ioctl){throw new FS.ErrnoError(ERRNO_CODES.ENOTTY)}return stream.stream_ops.ioctl(stream,cmd,arg)}),readFile:(function(path,opts){opts=opts||{};opts.flags=opts.flags||"r";opts.encoding=opts.encoding||"binary";if(opts.encoding!=="utf8"&&opts.encoding!=="binary"){throw new Error('Invalid encoding type "'+opts.encoding+'"')}var ret;var stream=FS.open(path,opts.flags);var stat=FS.stat(path);var length=stat.size;var buf=new Uint8Array(length);FS.read(stream,buf,0,length,0);if(opts.encoding==="utf8"){ret=UTF8ArrayToString(buf,0)}else if(opts.encoding==="binary"){ret=buf}FS.close(stream);return ret}),writeFile:(function(path,data,opts){opts=opts||{};opts.flags=opts.flags||"w";opts.encoding=opts.encoding||"utf8";if(opts.encoding!=="utf8"&&opts.encoding!=="binary"){throw new Error('Invalid encoding type "'+opts.encoding+'"')}var stream=FS.open(path,opts.flags,opts.mode);if(opts.encoding==="utf8"){var buf=new Uint8Array(lengthBytesUTF8(data)+1);var actualNumBytes=stringToUTF8Array(data,buf,0,buf.length);FS.write(stream,buf,0,actualNumBytes,0,opts.canOwn)}else if(opts.encoding==="binary"){FS.write(stream,data,0,data.length,0,opts.canOwn)}FS.close(stream)}),cwd:(function(){return FS.currentPath}),chdir:(function(path){var lookup=FS.lookupPath(path,{follow:true});if(!FS.isDir(lookup.node.mode)){throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR)}var err=FS.nodePermissions(lookup.node,"x");if(err){throw new FS.ErrnoError(err)}FS.currentPath=lookup.path}),createDefaultDirectories:(function(){FS.mkdir("/tmp");FS.mkdir("/home");FS.mkdir("/home/web_user")}),createDefaultDevices:(function(){FS.mkdir("/dev");FS.registerDevice(FS.makedev(1,3),{read:(function(){return 0}),write:(function(stream,buffer,offset,length,pos){return length})});FS.mkdev("/dev/null",FS.makedev(1,3));TTY.register(FS.makedev(5,0),TTY.default_tty_ops);TTY.register(FS.makedev(6,0),TTY.default_tty1_ops);FS.mkdev("/dev/tty",FS.makedev(5,0));FS.mkdev("/dev/tty1",FS.makedev(6,0));var random_device;if(typeof crypto!=="undefined"){var randomBuffer=new Uint8Array(1);random_device=(function(){crypto.getRandomValues(randomBuffer);return randomBuffer[0]})}else if(ENVIRONMENT_IS_NODE){random_device=(function(){return require("crypto").randomBytes(1)[0]})}else{random_device=(function(){return Math.random()*256|0})}FS.createDevice("/dev","random",random_device);FS.createDevice("/dev","urandom",random_device);FS.mkdir("/dev/shm");FS.mkdir("/dev/shm/tmp")}),createSpecialDirectories:(function(){FS.mkdir("/proc");FS.mkdir("/proc/self");FS.mkdir("/proc/self/fd");FS.mount({mount:(function(){var node=FS.createNode("/proc/self","fd",16384|511,73);node.node_ops={lookup:(function(parent,name){var fd=+name;var stream=FS.getStream(fd);if(!stream)throw new FS.ErrnoError(ERRNO_CODES.EBADF);var ret={parent:null,mount:{mountpoint:"fake"},node_ops:{readlink:(function(){return stream.path})}};ret.parent=ret;return ret})};return node})},{},"/proc/self/fd")}),createStandardStreams:(function(){if(Module["stdin"]){FS.createDevice("/dev","stdin",Module["stdin"])}else{FS.symlink("/dev/tty","/dev/stdin")}if(Module["stdout"]){FS.createDevice("/dev","stdout",null,Module["stdout"])}else{FS.symlink("/dev/tty","/dev/stdout")}if(Module["stderr"]){FS.createDevice("/dev","stderr",null,Module["stderr"])}else{FS.symlink("/dev/tty1","/dev/stderr")}var stdin=FS.open("/dev/stdin","r");assert(stdin.fd===0,"invalid handle for stdin ("+stdin.fd+")");var stdout=FS.open("/dev/stdout","w");assert(stdout.fd===1,"invalid handle for stdout ("+stdout.fd+")");var stderr=FS.open("/dev/stderr","w");assert(stderr.fd===2,"invalid handle for stderr ("+stderr.fd+")")}),ensureErrnoError:(function(){if(FS.ErrnoError)return;FS.ErrnoError=function ErrnoError(errno,node){this.node=node;this.setErrno=(function(errno){this.errno=errno;for(var key in ERRNO_CODES){if(ERRNO_CODES[key]===errno){this.code=key;break}}});this.setErrno(errno);this.message=ERRNO_MESSAGES[errno]};FS.ErrnoError.prototype=new Error;FS.ErrnoError.prototype.constructor=FS.ErrnoError;[ERRNO_CODES.ENOENT].forEach((function(code){FS.genericErrors[code]=new FS.ErrnoError(code);FS.genericErrors[code].stack="<generic error, no stack>"}))}),staticInit:(function(){FS.ensureErrnoError();FS.nameTable=new Array(4096);FS.mount(MEMFS,{},"/");FS.createDefaultDirectories();FS.createDefaultDevices();FS.createSpecialDirectories();FS.filesystems={"MEMFS":MEMFS,"IDBFS":IDBFS,"NODEFS":NODEFS,"WORKERFS":WORKERFS}}),init:(function(input,output,error){assert(!FS.init.initialized,"FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)");FS.init.initialized=true;FS.ensureErrnoError();Module["stdin"]=input||Module["stdin"];Module["stdout"]=output||Module["stdout"];Module["stderr"]=error||Module["stderr"];FS.createStandardStreams()}),quit:(function(){FS.init.initialized=false;var fflush=Module["_fflush"];if(fflush)fflush(0);for(var i=0;i<FS.streams.length;i++){var stream=FS.streams[i];if(!stream){continue}FS.close(stream)}}),getMode:(function(canRead,canWrite){var mode=0;if(canRead)mode|=292|73;if(canWrite)mode|=146;return mode}),joinPath:(function(parts,forceRelative){var path=PATH.join.apply(null,parts);if(forceRelative&&path[0]=="/")path=path.substr(1);return path}),absolutePath:(function(relative,base){return PATH.resolve(base,relative)}),standardizePath:(function(path){return PATH.normalize(path)}),findObject:(function(path,dontResolveLastLink){var ret=FS.analyzePath(path,dontResolveLastLink);if(ret.exists){return ret.object}else{___setErrNo(ret.error);return null}}),analyzePath:(function(path,dontResolveLastLink){try{var lookup=FS.lookupPath(path,{follow:!dontResolveLastLink});path=lookup.path}catch(e){}var ret={isRoot:false,exists:false,error:0,name:null,path:null,object:null,parentExists:false,parentPath:null,parentObject:null};try{var lookup=FS.lookupPath(path,{parent:true});ret.parentExists=true;ret.parentPath=lookup.path;ret.parentObject=lookup.node;ret.name=PATH.basename(path);lookup=FS.lookupPath(path,{follow:!dontResolveLastLink});ret.exists=true;ret.path=lookup.path;ret.object=lookup.node;ret.name=lookup.node.name;ret.isRoot=lookup.path==="/"}catch(e){ret.error=e.errno}return ret}),createFolder:(function(parent,name,canRead,canWrite){var path=PATH.join2(typeof parent==="string"?parent:FS.getPath(parent),name);var mode=FS.getMode(canRead,canWrite);return FS.mkdir(path,mode)}),createPath:(function(parent,path,canRead,canWrite){parent=typeof parent==="string"?parent:FS.getPath(parent);var parts=path.split("/").reverse();while(parts.length){var part=parts.pop();if(!part)continue;var current=PATH.join2(parent,part);try{FS.mkdir(current)}catch(e){}parent=current}return current}),createFile:(function(parent,name,properties,canRead,canWrite){var path=PATH.join2(typeof parent==="string"?parent:FS.getPath(parent),name);var mode=FS.getMode(canRead,canWrite);return FS.create(path,mode)}),createDataFile:(function(parent,name,data,canRead,canWrite,canOwn){var path=name?PATH.join2(typeof parent==="string"?parent:FS.getPath(parent),name):parent;var mode=FS.getMode(canRead,canWrite);var node=FS.create(path,mode);if(data){if(typeof data==="string"){var arr=new Array(data.length);for(var i=0,len=data.length;i<len;++i)arr[i]=data.charCodeAt(i);data=arr}FS.chmod(node,mode|146);var stream=FS.open(node,"w");FS.write(stream,data,0,data.length,0,canOwn);FS.close(stream);FS.chmod(node,mode)}return node}),createDevice:(function(parent,name,input,output){var path=PATH.join2(typeof parent==="string"?parent:FS.getPath(parent),name);var mode=FS.getMode(!!input,!!output);if(!FS.createDevice.major)FS.createDevice.major=64;var dev=FS.makedev(FS.createDevice.major++,0);FS.registerDevice(dev,{open:(function(stream){stream.seekable=false}),close:(function(stream){if(output&&output.buffer&&output.buffer.length){output(10)}}),read:(function(stream,buffer,offset,length,pos){var bytesRead=0;for(var i=0;i<length;i++){var result;try{result=input()}catch(e){throw new FS.ErrnoError(ERRNO_CODES.EIO)}if(result===undefined&&bytesRead===0){throw new FS.ErrnoError(ERRNO_CODES.EAGAIN)}if(result===null||result===undefined)break;bytesRead++;buffer[offset+i]=result}if(bytesRead){stream.node.timestamp=Date.now()}return bytesRead}),write:(function(stream,buffer,offset,length,pos){for(var i=0;i<length;i++){try{output(buffer[offset+i])}catch(e){throw new FS.ErrnoError(ERRNO_CODES.EIO)}}if(length){stream.node.timestamp=Date.now()}return i})});return FS.mkdev(path,mode,dev)}),createLink:(function(parent,name,target,canRead,canWrite){var path=PATH.join2(typeof parent==="string"?parent:FS.getPath(parent),name);return FS.symlink(target,path)}),forceLoadFile:(function(obj){if(obj.isDevice||obj.isFolder||obj.link||obj.contents)return true;var success=true;if(typeof XMLHttpRequest!=="undefined"){throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.")}else if(Module["read"]){try{obj.contents=intArrayFromString(Module["read"](obj.url),true);obj.usedBytes=obj.contents.length}catch(e){success=false}}else{throw new Error("Cannot load without read() or XMLHttpRequest.")}if(!success)___setErrNo(ERRNO_CODES.EIO);return success}),createLazyFile:(function(parent,name,url,canRead,canWrite){function LazyUint8Array(){this.lengthKnown=false;this.chunks=[]}LazyUint8Array.prototype.get=function LazyUint8Array_get(idx){if(idx>this.length-1||idx<0){return undefined}var chunkOffset=idx%this.chunkSize;var chunkNum=idx/this.chunkSize|0;return this.getter(chunkNum)[chunkOffset]};LazyUint8Array.prototype.setDataGetter=function LazyUint8Array_setDataGetter(getter){this.getter=getter};LazyUint8Array.prototype.cacheLength=function LazyUint8Array_cacheLength(){var xhr=new XMLHttpRequest;xhr.open("HEAD",url,false);xhr.send(null);if(!(xhr.status>=200&&xhr.status<300||xhr.status===304))throw new Error("Couldn't load "+url+". Status: "+xhr.status);var datalength=Number(xhr.getResponseHeader("Content-length"));var header;var hasByteServing=(header=xhr.getResponseHeader("Accept-Ranges"))&&header==="bytes";var chunkSize=1024*1024;if(!hasByteServing)chunkSize=datalength;var doXHR=(function(from,to){if(from>to)throw new Error("invalid range ("+from+", "+to+") or no bytes requested!");if(to>datalength-1)throw new Error("only "+datalength+" bytes available! programmer error!");var xhr=new XMLHttpRequest;xhr.open("GET",url,false);if(datalength!==chunkSize)xhr.setRequestHeader("Range","bytes="+from+"-"+to);if(typeof Uint8Array!="undefined")xhr.responseType="arraybuffer";if(xhr.overrideMimeType){xhr.overrideMimeType("text/plain; charset=x-user-defined")}xhr.send(null);if(!(xhr.status>=200&&xhr.status<300||xhr.status===304))throw new Error("Couldn't load "+url+". Status: "+xhr.status);if(xhr.response!==undefined){return new Uint8Array(xhr.response||[])}else{return intArrayFromString(xhr.responseText||"",true)}});var lazyArray=this;lazyArray.setDataGetter((function(chunkNum){var start=chunkNum*chunkSize;var end=(chunkNum+1)*chunkSize-1;end=Math.min(end,datalength-1);if(typeof lazyArray.chunks[chunkNum]==="undefined"){lazyArray.chunks[chunkNum]=doXHR(start,end)}if(typeof lazyArray.chunks[chunkNum]==="undefined")throw new Error("doXHR failed!");return lazyArray.chunks[chunkNum]}));this._length=datalength;this._chunkSize=chunkSize;this.lengthKnown=true};if(typeof XMLHttpRequest!=="undefined"){if(!ENVIRONMENT_IS_WORKER)throw"Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc";var lazyArray=new LazyUint8Array;Object.defineProperty(lazyArray,"length",{get:(function(){if(!this.lengthKnown){this.cacheLength()}return this._length})});Object.defineProperty(lazyArray,"chunkSize",{get:(function(){if(!this.lengthKnown){this.cacheLength()}return this._chunkSize})});var properties={isDevice:false,contents:lazyArray}}else{var properties={isDevice:false,url:url}}var node=FS.createFile(parent,name,properties,canRead,canWrite);if(properties.contents){node.contents=properties.contents}else if(properties.url){node.contents=null;node.url=properties.url}Object.defineProperty(node,"usedBytes",{get:(function(){return this.contents.length})});var stream_ops={};var keys=Object.keys(node.stream_ops);keys.forEach((function(key){var fn=node.stream_ops[key];stream_ops[key]=function forceLoadLazyFile(){if(!FS.forceLoadFile(node)){throw new FS.ErrnoError(ERRNO_CODES.EIO)}return fn.apply(null,arguments)}}));stream_ops.read=function stream_ops_read(stream,buffer,offset,length,position){if(!FS.forceLoadFile(node)){throw new FS.ErrnoError(ERRNO_CODES.EIO)}var contents=stream.node.contents;if(position>=contents.length)return 0;var size=Math.min(contents.length-position,length);assert(size>=0);if(contents.slice){for(var i=0;i<size;i++){buffer[offset+i]=contents[position+i]}}else{for(var i=0;i<size;i++){buffer[offset+i]=contents.get(position+i)}}return size};node.stream_ops=stream_ops;return node}),createPreloadedFile:(function(parent,name,url,canRead,canWrite,onload,onerror,dontCreateFile,canOwn,preFinish){Browser.init();var fullname=name?PATH.resolve(PATH.join2(parent,name)):parent;var dep=getUniqueRunDependency("cp "+fullname);function processData(byteArray){function finish(byteArray){if(preFinish)preFinish();if(!dontCreateFile){FS.createDataFile(parent,name,byteArray,canRead,canWrite,canOwn)}if(onload)onload();removeRunDependency(dep)}var handled=false;Module["preloadPlugins"].forEach((function(plugin){if(handled)return;if(plugin["canHandle"](fullname)){plugin["handle"](byteArray,fullname,finish,(function(){if(onerror)onerror();removeRunDependency(dep)}));handled=true}}));if(!handled)finish(byteArray)}addRunDependency(dep);if(typeof url=="string"){Browser.asyncLoad(url,(function(byteArray){processData(byteArray)}),onerror)}else{processData(url)}}),indexedDB:(function(){return window.indexedDB||window.mozIndexedDB||window.webkitIndexedDB||window.msIndexedDB}),DB_NAME:(function(){return"EM_FS_"+window.location.pathname}),DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:(function(paths,onload,onerror){onload=onload||(function(){});onerror=onerror||(function(){});var indexedDB=FS.indexedDB();try{var openRequest=indexedDB.open(FS.DB_NAME(),FS.DB_VERSION)}catch(e){return onerror(e)}openRequest.onupgradeneeded=function openRequest_onupgradeneeded(){console.log("creating db");var db=openRequest.result;db.createObjectStore(FS.DB_STORE_NAME)};openRequest.onsuccess=function openRequest_onsuccess(){var db=openRequest.result;var transaction=db.transaction([FS.DB_STORE_NAME],"readwrite");var files=transaction.objectStore(FS.DB_STORE_NAME);var ok=0,fail=0,total=paths.length;function finish(){if(fail==0)onload();else onerror()}paths.forEach((function(path){var putRequest=files.put(FS.analyzePath(path).object.contents,path);putRequest.onsuccess=function putRequest_onsuccess(){ok++;if(ok+fail==total)finish()};putRequest.onerror=function putRequest_onerror(){fail++;if(ok+fail==total)finish()}}));transaction.onerror=onerror};openRequest.onerror=onerror}),loadFilesFromDB:(function(paths,onload,onerror){onload=onload||(function(){});onerror=onerror||(function(){});var indexedDB=FS.indexedDB();try{var openRequest=indexedDB.open(FS.DB_NAME(),FS.DB_VERSION)}catch(e){return onerror(e)}openRequest.onupgradeneeded=onerror;openRequest.onsuccess=function openRequest_onsuccess(){var db=openRequest.result;try{var transaction=db.transaction([FS.DB_STORE_NAME],"readonly")}catch(e){onerror(e);return}var files=transaction.objectStore(FS.DB_STORE_NAME);var ok=0,fail=0,total=paths.length;function finish(){if(fail==0)onload();else onerror()}paths.forEach((function(path){var getRequest=files.get(path);getRequest.onsuccess=function getRequest_onsuccess(){if(FS.analyzePath(path).exists){FS.unlink(path)}FS.createDataFile(PATH.dirname(path),PATH.basename(path),getRequest.result,true,true,true);ok++;if(ok+fail==total)finish()};getRequest.onerror=function getRequest_onerror(){fail++;if(ok+fail==total)finish()}}));transaction.onerror=onerror};openRequest.onerror=onerror})};var SYSCALLS={DEFAULT_POLLMASK:5,mappings:{},umask:511,calculateAt:(function(dirfd,path){if(path[0]!=="/"){var dir;if(dirfd===-100){dir=FS.cwd()}else{var dirstream=FS.getStream(dirfd);if(!dirstream)throw new FS.ErrnoError(ERRNO_CODES.EBADF);dir=dirstream.path}path=PATH.join2(dir,path)}return path}),doStat:(function(func,path,buf){try{var stat=func(path)}catch(e){if(e&&e.node&&PATH.normalize(path)!==PATH.normalize(FS.getPath(e.node))){return-ERRNO_CODES.ENOTDIR}throw e}HEAP32[buf>>2]=stat.dev;HEAP32[buf+4>>2]=0;HEAP32[buf+8>>2]=stat.ino;HEAP32[buf+12>>2]=stat.mode;HEAP32[buf+16>>2]=stat.nlink;HEAP32[buf+20>>2]=stat.uid;HEAP32[buf+24>>2]=stat.gid;HEAP32[buf+28>>2]=stat.rdev;HEAP32[buf+32>>2]=0;HEAP32[buf+36>>2]=stat.size;HEAP32[buf+40>>2]=4096;HEAP32[buf+44>>2]=stat.blocks;HEAP32[buf+48>>2]=stat.atime.getTime()/1e3|0;HEAP32[buf+52>>2]=0;HEAP32[buf+56>>2]=stat.mtime.getTime()/1e3|0;HEAP32[buf+60>>2]=0;HEAP32[buf+64>>2]=stat.ctime.getTime()/1e3|0;HEAP32[buf+68>>2]=0;HEAP32[buf+72>>2]=stat.ino;return 0}),doMsync:(function(addr,stream,len,flags){var buffer=new Uint8Array(HEAPU8.subarray(addr,addr+len));FS.msync(stream,buffer,0,len,flags)}),doMkdir:(function(path,mode){path=PATH.normalize(path);if(path[path.length-1]==="/")path=path.substr(0,path.length-1);FS.mkdir(path,mode,0);return 0}),doMknod:(function(path,mode,dev){switch(mode&61440){case 32768:case 8192:case 24576:case 4096:case 49152:break;default:return-ERRNO_CODES.EINVAL}FS.mknod(path,mode,dev);return 0}),doReadlink:(function(path,buf,bufsize){if(bufsize<=0)return-ERRNO_CODES.EINVAL;var ret=FS.readlink(path);ret=ret.slice(0,Math.max(0,bufsize));writeStringToMemory(ret,buf,true);return ret.length}),doAccess:(function(path,amode){if(amode&~7){return-ERRNO_CODES.EINVAL}var node;var lookup=FS.lookupPath(path,{follow:true});node=lookup.node;var perms="";if(amode&4)perms+="r";if(amode&2)perms+="w";if(amode&1)perms+="x";if(perms&&FS.nodePermissions(node,perms)){return-ERRNO_CODES.EACCES}return 0}),doDup:(function(path,flags,suggestFD){var suggest=FS.getStream(suggestFD);if(suggest)FS.close(suggest);return FS.open(path,flags,0,suggestFD,suggestFD).fd}),doReadv:(function(stream,iov,iovcnt,offset){var ret=0;for(var i=0;i<iovcnt;i++){var ptr=HEAP32[iov+i*8>>2];var len=HEAP32[iov+(i*8+4)>>2];var curr=FS.read(stream,HEAP8,ptr,len,offset);if(curr<0)return-1;ret+=curr;if(curr<len)break}return ret}),doWritev:(function(stream,iov,iovcnt,offset){var ret=0;for(var i=0;i<iovcnt;i++){var ptr=HEAP32[iov+i*8>>2];var len=HEAP32[iov+(i*8+4)>>2];var curr=FS.write(stream,HEAP8,ptr,len,offset);if(curr<0)return-1;ret+=curr}return ret}),varargs:0,get:(function(varargs){SYSCALLS.varargs+=4;var ret=HEAP32[SYSCALLS.varargs-4>>2];return ret}),getStr:(function(){var ret=Pointer_stringify(SYSCALLS.get());return ret}),getStreamFromFD:(function(){var stream=FS.getStream(SYSCALLS.get());if(!stream)throw new FS.ErrnoError(ERRNO_CODES.EBADF);return stream}),getSocketFromFD:(function(){var socket=SOCKFS.getSocket(SYSCALLS.get());if(!socket)throw new FS.ErrnoError(ERRNO_CODES.EBADF);return socket}),getSocketAddress:(function(allowNull){var addrp=SYSCALLS.get(),addrlen=SYSCALLS.get();if(allowNull&&addrp===0)return null;var info=__read_sockaddr(addrp,addrlen);if(info.errno)throw new FS.ErrnoError(info.errno);info.addr=DNS.lookup_addr(info.addr)||info.addr;return info}),get64:(function(){var low=SYSCALLS.get(),high=SYSCALLS.get();if(low>=0)assert(high===0);else assert(high===-1);return low}),getZero:(function(){assert(SYSCALLS.get()===0)})};function ___syscall5(which,varargs){SYSCALLS.varargs=varargs;try{var pathname=SYSCALLS.getStr(),flags=SYSCALLS.get(),mode=SYSCALLS.get();var stream=FS.open(pathname,flags,mode);return stream.fd}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function _emscripten_memcpy_big(dest,src,num){HEAPU8.set(HEAPU8.subarray(src,src+num),dest);return dest}Module["_memcpy"]=_memcpy;function ___syscall6(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD();FS.close(stream);return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}var _cos=Math_cos;function _sbrk(bytes){var self=_sbrk;if(!self.called){DYNAMICTOP=alignMemoryPage(DYNAMICTOP);self.called=true;assert(Runtime.dynamicAlloc);self.alloc=Runtime.dynamicAlloc;Runtime.dynamicAlloc=(function(){abort("cannot dynamically allocate, sbrk now has control")})}var ret=DYNAMICTOP;if(bytes!=0){var success=self.alloc(bytes);if(!success)return-1>>>0}return ret}var _BItoD=true;function ___syscall54(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(),op=SYSCALLS.get();switch(op){case 21505:{if(!stream.tty)return-ERRNO_CODES.ENOTTY;return 0};case 21506:{if(!stream.tty)return-ERRNO_CODES.ENOTTY;return 0};case 21519:{if(!stream.tty)return-ERRNO_CODES.ENOTTY;var argp=SYSCALLS.get();HEAP32[argp>>2]=0;return 0};case 21520:{if(!stream.tty)return-ERRNO_CODES.ENOTTY;return-ERRNO_CODES.EINVAL};case 21531:{var argp=SYSCALLS.get();return FS.ioctl(stream,op,argp)};default:abort("bad ioctl syscall "+op)}}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}var _ceilf=Math_ceil;function __embind_register_memory_view(rawType,dataTypeIndex,name){var typeMapping=[Int8Array,Uint8Array,Int16Array,Uint16Array,Int32Array,Uint32Array,Float32Array,Float64Array];var TA=typeMapping[dataTypeIndex];function decodeMemoryView(handle){handle=handle>>2;var heap=HEAPU32;var size=heap[handle];var data=heap[handle+1];return new TA(heap["buffer"],data,size)}name=readLatin1String(name);registerType(rawType,{name:name,"fromWireType":decodeMemoryView,"argPackAdvance":8,"readValueFromPointer":decodeMemoryView},{ignoreDuplicateRegistrations:true})}function _time(ptr){var ret=Date.now()/1e3|0;if(ptr){HEAP32[ptr>>2]=ret}return ret}function _pthread_self(){return 0}function ___syscall140(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(),offset_high=SYSCALLS.get(),offset_low=SYSCALLS.get(),result=SYSCALLS.get(),whence=SYSCALLS.get();var offset=offset_low;assert(offset_high===0);FS.llseek(stream,offset,whence);HEAP32[result>>2]=stream.position;if(stream.getdents&&offset===0&&whence===0)stream.getdents=null;return 0}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function ___syscall146(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(),iov=SYSCALLS.get(),iovcnt=SYSCALLS.get();return SYSCALLS.doWritev(stream,iov,iovcnt)}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function ___syscall221(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(),cmd=SYSCALLS.get();switch(cmd){case 0:{var arg=SYSCALLS.get();if(arg<0){return-ERRNO_CODES.EINVAL}var newStream;newStream=FS.open(stream.path,stream.flags,0,arg);return newStream.fd};case 1:case 2:return 0;case 3:return stream.flags;case 4:{var arg=SYSCALLS.get();stream.flags|=arg;return 0};case 12:case 12:{var arg=SYSCALLS.get();var offset=0;HEAP16[arg+offset>>1]=2;return 0};case 13:case 14:case 13:case 14:return 0;case 16:case 8:return-ERRNO_CODES.EINVAL;case 9:___setErrNo(ERRNO_CODES.EINVAL);return-1;default:{return-ERRNO_CODES.EINVAL}}}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}function ___syscall145(which,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(),iov=SYSCALLS.get(),iovcnt=SYSCALLS.get();return SYSCALLS.doReadv(stream,iov,iovcnt)}catch(e){if(typeof FS==="undefined"||!(e instanceof FS.ErrnoError))abort(e);return-e.errno}}var ___dso_handle=allocate(1,"i32*",ALLOC_STATIC);embind_init_charCodes();BindingError=Module["BindingError"]=extendError(Error,"BindingError");InternalError=Module["InternalError"]=extendError(Error,"InternalError");init_emval();UnboundTypeError=Module["UnboundTypeError"]=extendError(Error,"UnboundTypeError");FS.staticInit();__ATINIT__.unshift((function(){if(!Module["noFSInit"]&&!FS.init.initialized)FS.init()}));__ATMAIN__.push((function(){FS.ignorePermissions=false}));__ATEXIT__.push((function(){FS.quit()}));Module["FS_createFolder"]=FS.createFolder;Module["FS_createPath"]=FS.createPath;Module["FS_createDataFile"]=FS.createDataFile;Module["FS_createPreloadedFile"]=FS.createPreloadedFile;Module["FS_createLazyFile"]=FS.createLazyFile;Module["FS_createLink"]=FS.createLink;Module["FS_createDevice"]=FS.createDevice;Module["FS_unlink"]=FS.unlink;__ATINIT__.unshift((function(){TTY.init()}));__ATEXIT__.push((function(){TTY.shutdown()}));if(ENVIRONMENT_IS_NODE){var fs=require("fs");var NODEJS_PATH=require("path");NODEFS.staticInit()}STACK_BASE=STACKTOP=Runtime.alignMemory(STATICTOP);staticSealed=true;STACK_MAX=STACK_BASE+TOTAL_STACK;DYNAMIC_BASE=DYNAMICTOP=Runtime.alignMemory(STACK_MAX);assert(DYNAMIC_BASE<TOTAL_MEMORY,"TOTAL_MEMORY not big enough for stack");var cttz_i8=allocate([8,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,7,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0],"i8",ALLOC_DYNAMIC);function invoke_iiii(index,a1,a2,a3){try{return Module["dynCall_iiii"](index,a1,a2,a3)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_viiiii(index,a1,a2,a3,a4,a5){try{Module["dynCall_viiiii"](index,a1,a2,a3,a4,a5)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_dii(index,a1,a2){try{return Module["dynCall_dii"](index,a1,a2)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_vid(index,a1,a2){try{Module["dynCall_vid"](index,a1,a2)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_di(index,a1){try{return Module["dynCall_di"](index,a1)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_i(index){try{return Module["dynCall_i"](index)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_vi(index,a1){try{Module["dynCall_vi"](index,a1)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_vii(index,a1,a2){try{Module["dynCall_vii"](index,a1,a2)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_ii(index,a1){try{return Module["dynCall_ii"](index,a1)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_viii(index,a1,a2,a3){try{Module["dynCall_viii"](index,a1,a2,a3)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_v(index){try{Module["dynCall_v"](index)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_viid(index,a1,a2,a3){try{Module["dynCall_viid"](index,a1,a2,a3)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_iiiii(index,a1,a2,a3,a4){try{return Module["dynCall_iiiii"](index,a1,a2,a3,a4)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_viiiiii(index,a1,a2,a3,a4,a5,a6){try{Module["dynCall_viiiiii"](index,a1,a2,a3,a4,a5,a6)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_iii(index,a1,a2){try{return Module["dynCall_iii"](index,a1,a2)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}function invoke_viiii(index,a1,a2,a3,a4){try{Module["dynCall_viiii"](index,a1,a2,a3,a4)}catch(e){if(typeof e!=="number"&&e!=="longjmp")throw e;asm["setThrew"](1,0)}}Module.asmGlobalArg={"Math":Math,"Int8Array":Int8Array,"Int16Array":Int16Array,"Int32Array":Int32Array,"Uint8Array":Uint8Array,"Uint16Array":Uint16Array,"Uint32Array":Uint32Array,"Float32Array":Float32Array,"Float64Array":Float64Array,"NaN":NaN,"Infinity":Infinity};Module.asmLibraryArg={"abort":abort,"assert":assert,"invoke_iiii":invoke_iiii,"invoke_viiiii":invoke_viiiii,"invoke_dii":invoke_dii,"invoke_vid":invoke_vid,"invoke_di":invoke_di,"invoke_i":invoke_i,"invoke_vi":invoke_vi,"invoke_vii":invoke_vii,"invoke_ii":invoke_ii,"invoke_viii":invoke_viii,"invoke_v":invoke_v,"invoke_viid":invoke_viid,"invoke_iiiii":invoke_iiiii,"invoke_viiiiii":invoke_viiiiii,"invoke_iii":invoke_iii,"invoke_viiii":invoke_viiii,"_fabs":_fabs,"___syscall221":___syscall221,"_sin":_sin,"floatReadValueFromPointer":floatReadValueFromPointer,"simpleReadValueFromPointer":simpleReadValueFromPointer,"integerReadValueFromPointer":integerReadValueFromPointer,"__embind_register_memory_view":__embind_register_memory_view,"throwInternalError":throwInternalError,"get_first_emval":get_first_emval,"_abort":_abort,"count_emval_handles":count_emval_handles,"_pthread_cleanup_push":_pthread_cleanup_push,"__embind_register_integer":__embind_register_integer,"extendError":extendError,"___assert_fail":___assert_fail,"init_emval":init_emval,"__embind_register_void":__embind_register_void,"___cxa_find_matching_catch":___cxa_find_matching_catch,"_ceilf":_ceilf,"getShiftFromSize":getShiftFromSize,"__embind_register_function":__embind_register_function,"embind_init_charCodes":embind_init_charCodes,"_emscripten_asm_const_33":_emscripten_asm_const_33,"throwBindingError":throwBindingError,"___setErrNo":___setErrNo,"__emval_register":__emval_register,"_sbrk":_sbrk,"readLatin1String":readLatin1String,"___cxa_allocate_exception":___cxa_allocate_exception,"_emscripten_memcpy_big":_emscripten_memcpy_big,"__embind_register_bool":__embind_register_bool,"___resumeException":___resumeException,"__ZSt18uncaught_exceptionv":__ZSt18uncaught_exceptionv,"_sysconf":_sysconf,"_embind_repr":_embind_repr,"__embind_register_std_wstring":__embind_register_std_wstring,"createNamedFunction":createNamedFunction,"__embind_register_emval":__embind_register_emval,"_cos":_cos,"throwUnboundTypeError":throwUnboundTypeError,"_pthread_self":_pthread_self,"craftInvokerFunction":craftInvokerFunction,"__emval_decref":__emval_decref,"_sqrt":_sqrt,"__embind_register_float":__embind_register_float,"makeLegalFunctionName":makeLegalFunctionName,"___syscall54":___syscall54,"___unlock":___unlock,"heap32VectorToArray":heap32VectorToArray,"_pthread_cleanup_pop":_pthread_cleanup_pop,"whenDependentTypesAreResolved":whenDependentTypesAreResolved,"_exit":_exit,"__embind_register_std_string":__embind_register_std_string,"new_":new_,"___cxa_atexit":___cxa_atexit,"registerType":registerType,"___cxa_throw":___cxa_throw,"__exit":__exit,"___lock":___lock,"___syscall6":___syscall6,"___syscall5":___syscall5,"ensureOverloadTable":ensureOverloadTable,"__embind_register_constant":__embind_register_constant,"_time":_time,"requireFunction":requireFunction,"runDestructors":runDestructors,"getTypeName":getTypeName,"_atexit":_atexit,"___syscall140":___syscall140,"exposePublicSymbol":exposePublicSymbol,"_emscripten_asm_const_5":_emscripten_asm_const_5,"_emscripten_asm_const_4":_emscripten_asm_const_4,"replacePublicSymbol":replacePublicSymbol,"___syscall145":___syscall145,"___syscall146":___syscall146,"STACKTOP":STACKTOP,"STACK_MAX":STACK_MAX,"tempDoublePtr":tempDoublePtr,"ABORT":ABORT,"cttz_i8":cttz_i8,"___dso_handle":___dso_handle};// EMSCRIPTEN_START_ASM
var asm=(function(global,env,buffer) {
"use asm";var a=new global.Int8Array(buffer);var b=new global.Int16Array(buffer);var c=new global.Int32Array(buffer);var d=new global.Uint8Array(buffer);var e=new global.Uint16Array(buffer);var f=new global.Uint32Array(buffer);var g=new global.Float32Array(buffer);var h=new global.Float64Array(buffer);var i=env.STACKTOP|0;var j=env.STACK_MAX|0;var k=env.tempDoublePtr|0;var l=env.ABORT|0;var m=env.cttz_i8|0;var n=env.___dso_handle|0;var o=0;var p=0;var q=0;var r=0;var s=global.NaN,t=global.Infinity;var u=0,v=0,w=0,x=0,y=0.0,z=0,A=0,B=0,C=0.0;var D=0;var E=0;var F=0;var G=0;var H=0;var I=0;var J=0;var K=0;var L=0;var M=0;var N=global.Math.floor;var O=global.Math.abs;var P=global.Math.sqrt;var Q=global.Math.pow;var R=global.Math.cos;var S=global.Math.sin;var T=global.Math.tan;var U=global.Math.acos;var V=global.Math.asin;var W=global.Math.atan;var X=global.Math.atan2;var Y=global.Math.exp;var Z=global.Math.log;var _=global.Math.ceil;var $=global.Math.imul;var aa=global.Math.min;var ba=global.Math.clz32;var ca=env.abort;var da=env.assert;var ea=env.invoke_iiii;var fa=env.invoke_viiiii;var ga=env.invoke_dii;var ha=env.invoke_vid;var ia=env.invoke_di;var ja=env.invoke_i;var ka=env.invoke_vi;var la=env.invoke_vii;var ma=env.invoke_ii;var na=env.invoke_viii;var oa=env.invoke_v;var pa=env.invoke_viid;var qa=env.invoke_iiiii;var ra=env.invoke_viiiiii;var sa=env.invoke_iii;var ta=env.invoke_viiii;var ua=env._fabs;var va=env.___syscall221;var wa=env._sin;var xa=env.floatReadValueFromPointer;var ya=env.simpleReadValueFromPointer;var za=env.integerReadValueFromPointer;var Aa=env.__embind_register_memory_view;var Ba=env.throwInternalError;var Ca=env.get_first_emval;var Da=env._abort;var Ea=env.count_emval_handles;var Fa=env._pthread_cleanup_push;var Ga=env.__embind_register_integer;var Ha=env.extendError;var Ia=env.___assert_fail;var Ja=env.init_emval;var Ka=env.__embind_register_void;var La=env.___cxa_find_matching_catch;var Ma=env._ceilf;var Na=env.getShiftFromSize;var Oa=env.__embind_register_function;var Pa=env.embind_init_charCodes;var Qa=env._emscripten_asm_const_33;var Ra=env.throwBindingError;var Sa=env.___setErrNo;var Ta=env.__emval_register;var Ua=env._sbrk;var Va=env.readLatin1String;var Wa=env.___cxa_allocate_exception;var Xa=env._emscripten_memcpy_big;var Ya=env.__embind_register_bool;var Za=env.___resumeException;var _a=env.__ZSt18uncaught_exceptionv;var $a=env._sysconf;var ab=env._embind_repr;var bb=env.__embind_register_std_wstring;var cb=env.createNamedFunction;var db=env.__embind_register_emval;var eb=env._cos;var fb=env.throwUnboundTypeError;var gb=env._pthread_self;var hb=env.craftInvokerFunction;var ib=env.__emval_decref;var jb=env._sqrt;var kb=env.__embind_register_float;var lb=env.makeLegalFunctionName;var mb=env.___syscall54;var nb=env.___unlock;var ob=env.heap32VectorToArray;var pb=env._pthread_cleanup_pop;var qb=env.whenDependentTypesAreResolved;var rb=env._exit;var sb=env.__embind_register_std_string;var tb=env.new_;var ub=env.___cxa_atexit;var vb=env.registerType;var wb=env.___cxa_throw;var xb=env.__exit;var yb=env.___lock;var zb=env.___syscall6;var Ab=env.___syscall5;var Bb=env.ensureOverloadTable;var Cb=env.__embind_register_constant;var Db=env._time;var Eb=env.requireFunction;var Fb=env.runDestructors;var Gb=env.getTypeName;var Hb=env._atexit;var Ib=env.___syscall140;var Jb=env.exposePublicSymbol;var Kb=env._emscripten_asm_const_5;var Lb=env._emscripten_asm_const_4;var Mb=env.replacePublicSymbol;var Nb=env.___syscall145;var Ob=env.___syscall146;var Pb=0.0;
// EMSCRIPTEN_START_FUNCS
function dd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}z=D+-1|0;if((g|0)>1){l=0;m=o;n=o+(z<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{m=m+(D<<1)|0;n=n+(D<<1)|0}}}n=k+1179664|0;m=D+1|0;w=0-D|0;u=1-D|0;v=~D;t=f+4|0;a:do if((A|0)>1){x=(z|0)>1;l=(c[k+4>>2]|0)+m|0;y=1;g=e+((f<<1)+2)|0;e=o+(m<<1)|0;m=0;b:while(1){if(x){s=1;r=g;q=m;while(1){do if((d[r>>0]|0|0)>(j|0)){b[e>>1]=0;a[l>>0]=0;m=q}else{a[l>>0]=-1;m=b[e+(w<<1)>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}f=b[e+(u<<1)>>1]|0;o=f<<16>>16;m=b[e+(v<<1)>>1]|0;p=m<<16>>16;g=m<<16>>16>0;if(f<<16>>16<=0){if(g){b[e>>1]=m;m=p*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-3<<2)|0;if((c[g>>2]|0)<(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=b[e+-2>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(s|0)){m=q;break}c[m>>2]=s;m=q;break}else{m=q+1|0;if((q|0)>32767)break b;b[e>>1]=m;c[k+1179664+(q<<2)>>2]=m<<16>>16;q=q*7|0;c[k+1310736+(q<<2)>>2]=1;c[k+1310736+(q+1<<2)>>2]=s;c[k+1310736+(q+2<<2)>>2]=y;c[k+1310736+(q+3<<2)>>2]=s;c[k+1310736+(q+4<<2)>>2]=s;c[k+1310736+(q+5<<2)>>2]=y;c[k+1310736+(q+6<<2)>>2]=y;break}}if(g){m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+(p+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}g=b[e+-2>>1]|0;if(g<<16>>16<=0){b[e>>1]=f;m=o*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-4<<2)|0;if((c[g>>2]|0)>(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+((g<<16>>16)+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+y;m=q}while(0);s=s+1|0;g=r+2|0;e=e+2|0;l=l+1|0;if((s|0)>=(z|0))break;else{r=g;q=m}}}y=y+1|0;if((y|0)>=(A|0)){o=m;C=52;break a}else{l=l+2|0;g=g+t|0;e=e+4|0}}Me(3,3904,B);l=-1}else{o=0;C=52}while(0);if((C|0)==52){e=k+12|0;if((o|0)<1)m=1;else{g=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(g|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((g|0)<(o|0)){g=g+1|0;n=n+4|0}else break}}f=k+8|0;l=m+-1|0;c[f>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[f>>2]|0))}if((o|0)>0){e=0;do{n=(c[k+1179664+(e<<2)>>2]|0)+-1|0;g=e*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(g<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(g+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(g+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(g+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(g+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(g+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(g+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;e=e+1|0}while((e|0)<(o|0))}if((c[f>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[f>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function ed(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}z=D+-1|0;if((g|0)>1){l=0;m=o;n=o+(z<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{m=m+(D<<1)|0;n=n+(D<<1)|0}}}n=k+1179664|0;m=D+1|0;w=0-D|0;u=1-D|0;v=~D;t=(f<<1)+8|0;a:do if((A|0)>1){x=(z|0)>1;l=(c[k+4>>2]|0)+m|0;y=1;g=e+((f<<2)+4)|0;e=o+(m<<1)|0;m=0;b:while(1){if(x){s=1;r=g;q=m;while(1){do if((d[r+1>>0]|0|0)>(j|0)){b[e>>1]=0;a[l>>0]=0;m=q}else{a[l>>0]=-1;m=b[e+(w<<1)>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}f=b[e+(u<<1)>>1]|0;o=f<<16>>16;m=b[e+(v<<1)>>1]|0;p=m<<16>>16;g=m<<16>>16>0;if(f<<16>>16<=0){if(g){b[e>>1]=m;m=p*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-3<<2)|0;if((c[g>>2]|0)<(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=b[e+-2>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(s|0)){m=q;break}c[m>>2]=s;m=q;break}else{m=q+1|0;if((q|0)>32767)break b;b[e>>1]=m;c[k+1179664+(q<<2)>>2]=m<<16>>16;q=q*7|0;c[k+1310736+(q<<2)>>2]=1;c[k+1310736+(q+1<<2)>>2]=s;c[k+1310736+(q+2<<2)>>2]=y;c[k+1310736+(q+3<<2)>>2]=s;c[k+1310736+(q+4<<2)>>2]=s;c[k+1310736+(q+5<<2)>>2]=y;c[k+1310736+(q+6<<2)>>2]=y;break}}if(g){m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+(p+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}g=b[e+-2>>1]|0;if(g<<16>>16<=0){b[e>>1]=f;m=o*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-4<<2)|0;if((c[g>>2]|0)>(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+((g<<16>>16)+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+y;m=q}while(0);s=s+1|0;g=r+4|0;e=e+2|0;l=l+1|0;if((s|0)>=(z|0))break;else{r=g;q=m}}}y=y+1|0;if((y|0)>=(A|0)){o=m;C=52;break a}else{l=l+2|0;g=g+t|0;e=e+4|0}}Me(3,3904,B);l=-1}else{o=0;C=52}while(0);if((C|0)==52){e=k+12|0;if((o|0)<1)m=1;else{g=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(g|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((g|0)<(o|0)){g=g+1|0;n=n+4|0}else break}}f=k+8|0;l=m+-1|0;c[f>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[f>>2]|0))}if((o|0)>0){e=0;do{n=(c[k+1179664+(e<<2)>>2]|0)+-1|0;g=e*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(g<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(g+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(g+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(g+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(g+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(g+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(g+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;e=e+1|0}while((e|0)<(o|0))}if((c[f>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[f>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function fd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}z=D+-1|0;if((g|0)>1){l=0;m=o;n=o+(z<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{m=m+(D<<1)|0;n=n+(D<<1)|0}}}n=k+1179664|0;m=D+1|0;w=0-D|0;u=1-D|0;v=~D;t=(f<<1)+8|0;a:do if((A|0)>1){x=(z|0)>1;l=(c[k+4>>2]|0)+m|0;y=1;g=e+((f<<2)+4)|0;e=o+(m<<1)|0;m=0;b:while(1){if(x){s=1;r=g;q=m;while(1){do if((d[r>>0]|0|0)>(j|0)){b[e>>1]=0;a[l>>0]=0;m=q}else{a[l>>0]=-1;m=b[e+(w<<1)>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}f=b[e+(u<<1)>>1]|0;o=f<<16>>16;m=b[e+(v<<1)>>1]|0;p=m<<16>>16;g=m<<16>>16>0;if(f<<16>>16<=0){if(g){b[e>>1]=m;m=p*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-3<<2)|0;if((c[g>>2]|0)<(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=b[e+-2>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(s|0)){m=q;break}c[m>>2]=s;m=q;break}else{m=q+1|0;if((q|0)>32767)break b;b[e>>1]=m;c[k+1179664+(q<<2)>>2]=m<<16>>16;q=q*7|0;c[k+1310736+(q<<2)>>2]=1;c[k+1310736+(q+1<<2)>>2]=s;c[k+1310736+(q+2<<2)>>2]=y;c[k+1310736+(q+3<<2)>>2]=s;c[k+1310736+(q+4<<2)>>2]=s;c[k+1310736+(q+5<<2)>>2]=y;c[k+1310736+(q+6<<2)>>2]=y;break}}if(g){m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+(p+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}g=b[e+-2>>1]|0;if(g<<16>>16<=0){b[e>>1]=f;m=o*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-4<<2)|0;if((c[g>>2]|0)>(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+((g<<16>>16)+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+y;m=q}while(0);s=s+1|0;g=r+4|0;e=e+2|0;l=l+1|0;if((s|0)>=(z|0))break;else{r=g;q=m}}}y=y+1|0;if((y|0)>=(A|0)){o=m;C=52;break a}else{l=l+2|0;g=g+t|0;e=e+4|0}}Me(3,3904,B);l=-1}else{o=0;C=52}while(0);if((C|0)==52){e=k+12|0;if((o|0)<1)m=1;else{g=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(g|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((g|0)<(o|0)){g=g+1|0;n=n+4|0}else break}}f=k+8|0;l=m+-1|0;c[f>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[f>>2]|0))}if((o|0)>0){e=0;do{n=(c[k+1179664+(e<<2)>>2]|0)+-1|0;g=e*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(g<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(g+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(g+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(g+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(g+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(g+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(g+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;e=e+1|0}while((e|0)<(o|0))}if((c[f>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[f>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function gd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l*3|0)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){do if(((d[s+1>>0]|0)+(d[s>>0]|0)+(d[s+2>>0]|0)|0)>(A|0)){b[e>>1]=0;a[l>>0]=0;j=r}else{a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}while(0);t=t+1|0;n=s+3|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+6|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function hd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<1)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){p=d[s>>0]|0;q=d[s+1>>0]|0;do if(((p&248)+10+(p<<5&224)+(q>>>3&28)+(q<<3&248)|0)>(A|0)){b[e>>1]=0;a[l>>0]=0;j=r}else{a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}while(0);t=t+1|0;n=s+2|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+4|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function id(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<2)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){do if(((d[s+1>>0]|0)+(d[s>>0]|0)+(d[s+2>>0]|0)|0)>(A|0)){b[e>>1]=0;a[l>>0]=0;j=r}else{a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}while(0);t=t+1|0;n=s+4|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+8|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function jd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<1)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){q=d[s>>0]|0;do if(((q&240)+24+(q<<4&240)+((d[s+1>>0]|0)&240)|0)>(A|0)){b[e>>1]=0;a[l>>0]=0;j=r}else{a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}while(0);t=t+1|0;n=s+2|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+4|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function kd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<1)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){p=d[s>>0]|0;q=d[s+1>>0]|0;do if(((p&248)+12+(p<<5&224)+(q>>>3&24)+(q<<2&248)|0)>(A|0)){b[e>>1]=0;a[l>>0]=0;j=r}else{a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}while(0);t=t+1|0;n=s+2|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+4|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function ld(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<2)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){do if(((d[s+2>>0]|0)+(d[s+1>>0]|0)+(d[s+3>>0]|0)|0)>(A|0)){b[e>>1]=0;a[l>>0]=0;j=r}else{a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}while(0);t=t+1|0;n=s+4|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+8|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function md(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;o=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=o;n=o+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=f+-1|0;if((g|0)>0){l=0;m=o;n=o+(A<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{m=m+(f<<1)|0;n=n+(f<<1)|0}}}n=k+1179664|0;l=f+1|0;x=0-f|0;v=1-f|0;w=~f;a:do if((B|0)>1){y=(A|0)>1;p=(c[k+4>>2]|0)+l|0;z=1;e=e+l|0;o=o+(l<<1)|0;m=0;b:while(1){if(y){l=p;u=1;t=e;s=m;while(1){do if((d[t>>0]|0|0)>(j|0)){b[o>>1]=0;a[l>>0]=0;m=s}else{a[l>>0]=-1;m=b[o+(x<<1)>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}p=b[o+(v<<1)>>1]|0;q=p<<16>>16;m=b[o+(w<<1)>>1]|0;r=m<<16>>16;e=m<<16>>16>0;if(p<<16>>16<=0){if(e){b[o>>1]=m;m=r*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-3<<2)|0;if((c[e>>2]|0)<(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=b[o+-2>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(u|0)){m=s;break}c[m>>2]=u;m=s;break}else{m=s+1|0;if((s|0)>32767)break b;b[o>>1]=m;c[k+1179664+(s<<2)>>2]=m<<16>>16;s=s*7|0;c[k+1310736+(s<<2)>>2]=1;c[k+1310736+(s+1<<2)>>2]=u;c[k+1310736+(s+2<<2)>>2]=z;c[k+1310736+(s+3<<2)>>2]=u;c[k+1310736+(s+4<<2)>>2]=u;c[k+1310736+(s+5<<2)>>2]=z;c[k+1310736+(s+6<<2)>>2]=z;break}}if(e){m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+(r+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}e=b[o+-2>>1]|0;if(e<<16>>16<=0){b[o>>1]=p;m=q*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-4<<2)|0;if((c[e>>2]|0)>(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+((e<<16>>16)+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+z;m=s}while(0);u=u+1|0;e=t+1|0;o=o+2|0;l=l+1|0;if((u|0)>=(A|0))break;else{t=e;s=m}}}else l=p;z=z+1|0;if((z|0)>=(B|0)){q=m;D=52;break a}else{p=l+2|0;e=e+2|0;o=o+4|0}}Me(3,3904,C);l=-1}else{q=0;D=52}while(0);if((D|0)==52){o=k+12|0;if((q|0)<1)m=1;else{e=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(e|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((e|0)<(q|0)){e=e+1|0;n=n+4|0}else break}}p=k+8|0;l=m+-1|0;c[p>>2]=l;if(l){ek(o|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[p>>2]|0))}if((q|0)>0){o=0;do{n=(c[k+1179664+(o<<2)>>2]|0)+-1|0;e=o*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(e<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(e+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(e+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(e+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(e+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(e+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(e+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;o=o+1|0}while((o|0)<(q|0))}if((c[p>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[p>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function nd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;o=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=o;n=o+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=f+-1|0;if((g|0)>0){l=0;m=o;n=o+(A<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{m=m+(f<<1)|0;n=n+(f<<1)|0}}}n=k+1179664|0;l=f+1|0;x=0-f|0;v=1-f|0;w=~f;a:do if((B|0)>1){y=(A|0)>1;p=(c[k+4>>2]|0)+l|0;z=1;e=e+(l<<1)|0;o=o+(l<<1)|0;m=0;b:while(1){if(y){l=p;u=1;t=e;s=m;while(1){do if((d[t+1>>0]|0|0)>(j|0)){b[o>>1]=0;a[l>>0]=0;m=s}else{a[l>>0]=-1;m=b[o+(x<<1)>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}p=b[o+(v<<1)>>1]|0;q=p<<16>>16;m=b[o+(w<<1)>>1]|0;r=m<<16>>16;e=m<<16>>16>0;if(p<<16>>16<=0){if(e){b[o>>1]=m;m=r*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-3<<2)|0;if((c[e>>2]|0)<(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=b[o+-2>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(u|0)){m=s;break}c[m>>2]=u;m=s;break}else{m=s+1|0;if((s|0)>32767)break b;b[o>>1]=m;c[k+1179664+(s<<2)>>2]=m<<16>>16;s=s*7|0;c[k+1310736+(s<<2)>>2]=1;c[k+1310736+(s+1<<2)>>2]=u;c[k+1310736+(s+2<<2)>>2]=z;c[k+1310736+(s+3<<2)>>2]=u;c[k+1310736+(s+4<<2)>>2]=u;c[k+1310736+(s+5<<2)>>2]=z;c[k+1310736+(s+6<<2)>>2]=z;break}}if(e){m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+(r+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}e=b[o+-2>>1]|0;if(e<<16>>16<=0){b[o>>1]=p;m=q*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-4<<2)|0;if((c[e>>2]|0)>(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+((e<<16>>16)+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+z;m=s}while(0);u=u+1|0;e=t+2|0;o=o+2|0;l=l+1|0;if((u|0)>=(A|0))break;else{t=e;s=m}}}else l=p;z=z+1|0;if((z|0)>=(B|0)){q=m;D=52;break a}else{p=l+2|0;e=e+4|0;o=o+4|0}}Me(3,3904,C);l=-1}else{q=0;D=52}while(0);if((D|0)==52){o=k+12|0;if((q|0)<1)m=1;else{e=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(e|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((e|0)<(q|0)){e=e+1|0;n=n+4|0}else break}}p=k+8|0;l=m+-1|0;c[p>>2]=l;if(l){ek(o|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[p>>2]|0))}if((q|0)>0){o=0;do{n=(c[k+1179664+(o<<2)>>2]|0)+-1|0;e=o*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(e<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(e+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(e+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(e+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(e+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(e+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(e+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;o=o+1|0}while((o|0)<(q|0))}if((c[p>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[p>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function od(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;o=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=o;n=o+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=f+-1|0;if((g|0)>0){l=0;m=o;n=o+(A<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{m=m+(f<<1)|0;n=n+(f<<1)|0}}}n=k+1179664|0;l=f+1|0;x=0-f|0;v=1-f|0;w=~f;a:do if((B|0)>1){y=(A|0)>1;p=(c[k+4>>2]|0)+l|0;z=1;e=e+(l<<1)|0;o=o+(l<<1)|0;m=0;b:while(1){if(y){l=p;u=1;t=e;s=m;while(1){do if((d[t>>0]|0|0)>(j|0)){b[o>>1]=0;a[l>>0]=0;m=s}else{a[l>>0]=-1;m=b[o+(x<<1)>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}p=b[o+(v<<1)>>1]|0;q=p<<16>>16;m=b[o+(w<<1)>>1]|0;r=m<<16>>16;e=m<<16>>16>0;if(p<<16>>16<=0){if(e){b[o>>1]=m;m=r*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-3<<2)|0;if((c[e>>2]|0)<(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=b[o+-2>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(u|0)){m=s;break}c[m>>2]=u;m=s;break}else{m=s+1|0;if((s|0)>32767)break b;b[o>>1]=m;c[k+1179664+(s<<2)>>2]=m<<16>>16;s=s*7|0;c[k+1310736+(s<<2)>>2]=1;c[k+1310736+(s+1<<2)>>2]=u;c[k+1310736+(s+2<<2)>>2]=z;c[k+1310736+(s+3<<2)>>2]=u;c[k+1310736+(s+4<<2)>>2]=u;c[k+1310736+(s+5<<2)>>2]=z;c[k+1310736+(s+6<<2)>>2]=z;break}}if(e){m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+(r+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}e=b[o+-2>>1]|0;if(e<<16>>16<=0){b[o>>1]=p;m=q*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-4<<2)|0;if((c[e>>2]|0)>(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+((e<<16>>16)+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+z;m=s}while(0);u=u+1|0;e=t+2|0;o=o+2|0;l=l+1|0;if((u|0)>=(A|0))break;else{t=e;s=m}}}else l=p;z=z+1|0;if((z|0)>=(B|0)){q=m;D=52;break a}else{p=l+2|0;e=e+4|0;o=o+4|0}}Me(3,3904,C);l=-1}else{q=0;D=52}while(0);if((D|0)==52){o=k+12|0;if((q|0)<1)m=1;else{e=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(e|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((e|0)<(q|0)){e=e+1|0;n=n+4|0}else break}}p=k+8|0;l=m+-1|0;c[p>>2]=l;if(l){ek(o|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[p>>2]|0))}if((q|0)>0){o=0;do{n=(c[k+1179664+(o<<2)>>2]|0)+-1|0;e=o*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(e<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(e+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(e+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(e+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(e+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(e+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(e+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;o=o+1|0}while((o|0)<(q|0))}if((c[p>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[p>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function pd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;o=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=o;n=o+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=f+-1|0;if((g|0)>0){l=0;m=o;n=o+(A<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{m=m+(f<<1)|0;n=n+(f<<1)|0}}}n=k+1179664|0;m=f+1|0;x=0-f|0;v=1-f|0;w=~f;a:do if((B|0)>1){y=(A|0)>1;l=(c[k+4>>2]|0)+m|0;z=1;e=e+m|0;o=o+(m<<1)|0;j=j+m|0;m=0;b:while(1){if(y){u=1;t=e;s=m;while(1){do if((d[t>>0]|0)>(d[j>>0]|0)){b[o>>1]=0;a[l>>0]=0;m=s}else{a[l>>0]=-1;m=b[o+(x<<1)>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}p=b[o+(v<<1)>>1]|0;q=p<<16>>16;m=b[o+(w<<1)>>1]|0;r=m<<16>>16;e=m<<16>>16>0;if(p<<16>>16<=0){if(e){b[o>>1]=m;m=r*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-3<<2)|0;if((c[e>>2]|0)<(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=b[o+-2>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(u|0)){m=s;break}c[m>>2]=u;m=s;break}else{m=s+1|0;if((s|0)>32767)break b;b[o>>1]=m;c[k+1179664+(s<<2)>>2]=m<<16>>16;s=s*7|0;c[k+1310736+(s<<2)>>2]=1;c[k+1310736+(s+1<<2)>>2]=u;c[k+1310736+(s+2<<2)>>2]=z;c[k+1310736+(s+3<<2)>>2]=u;c[k+1310736+(s+4<<2)>>2]=u;c[k+1310736+(s+5<<2)>>2]=z;c[k+1310736+(s+6<<2)>>2]=z;break}}if(e){m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+(r+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}e=b[o+-2>>1]|0;if(e<<16>>16<=0){b[o>>1]=p;m=q*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-4<<2)|0;if((c[e>>2]|0)>(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+((e<<16>>16)+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+z;m=s}while(0);u=u+1|0;e=t+1|0;j=j+1|0;o=o+2|0;l=l+1|0;if((u|0)>=(A|0))break;else{t=e;s=m}}}z=z+1|0;if((z|0)>=(B|0)){p=m;D=52;break a}else{l=l+2|0;e=e+2|0;o=o+4|0;j=j+2|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){o=k+12|0;if((p|0)<1)m=1;else{e=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(e|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((e|0)<(p|0)){e=e+1|0;n=n+4|0}else break}}j=k+8|0;l=m+-1|0;c[j>>2]=l;if(l){ek(o|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[j>>2]|0))}if((p|0)>0){o=0;do{n=(c[k+1179664+(o<<2)>>2]|0)+-1|0;e=o*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(e<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(e+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(e+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(e+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(e+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(e+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(e+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;o=o+1|0}while((o|0)<(p|0))}if((c[j>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[j>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function qd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f*3|0)+12|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f*6|0)+6)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){do if(((d[q+1>>0]|0)+(d[q>>0]|0)+(d[q+2>>0]|0)|0)>(y|0)){a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}else{b[g>>1]=0;a[l>>0]=0;j=p}while(0);r=r+1|0;n=q+6|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function rd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<1)+8|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<2)+4)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){f=d[q>>0]|0;o=d[q+1>>0]|0;do if(((f&248)+10+(f<<5&224)+(o>>>3&28)+(o<<3&248)|0)>(y|0)){a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}else{b[g>>1]=0;a[l>>0]=0;j=p}while(0);r=r+1|0;n=q+4|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function sd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<2)+16|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<3)+8)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){do if(((d[q+1>>0]|0)+(d[q>>0]|0)+(d[q+2>>0]|0)|0)>(y|0)){a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}else{b[g>>1]=0;a[l>>0]=0;j=p}while(0);r=r+1|0;n=q+8|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function td(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<1)+8|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<2)+4)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){o=d[q>>0]|0;do if(((o&240)+24+(o<<4&240)+((d[q+1>>0]|0)&240)|0)>(y|0)){a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}else{b[g>>1]=0;a[l>>0]=0;j=p}while(0);r=r+1|0;n=q+4|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function ud(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<1)+8|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<2)+4)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){f=d[q>>0]|0;o=d[q+1>>0]|0;do if(((f&248)+12+(f<<5&224)+(o>>>3&24)+(o<<2&248)|0)>(y|0)){a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}else{b[g>>1]=0;a[l>>0]=0;j=p}while(0);r=r+1|0;n=q+4|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function vd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<2)+16|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<3)+8)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){do if(((d[q+2>>0]|0)+(d[q+1>>0]|0)+(d[q+3>>0]|0)|0)>(y|0)){a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}else{b[g>>1]=0;a[l>>0]=0;j=p}while(0);r=r+1|0;n=q+8|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function wd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}z=D+-1|0;if((g|0)>1){l=0;m=o;n=o+(z<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{m=m+(D<<1)|0;n=n+(D<<1)|0}}}n=k+1179664|0;m=D+1|0;w=0-D|0;u=1-D|0;v=~D;t=f+4|0;a:do if((A|0)>1){x=(z|0)>1;l=(c[k+4>>2]|0)+m|0;y=1;g=e+((f<<1)+2)|0;e=o+(m<<1)|0;m=0;b:while(1){if(x){s=1;r=g;q=m;while(1){do if((d[r>>0]|0|0)>(j|0)){a[l>>0]=-1;m=b[e+(w<<1)>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}f=b[e+(u<<1)>>1]|0;o=f<<16>>16;m=b[e+(v<<1)>>1]|0;p=m<<16>>16;g=m<<16>>16>0;if(f<<16>>16<=0){if(g){b[e>>1]=m;m=p*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-3<<2)|0;if((c[g>>2]|0)<(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=b[e+-2>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(s|0)){m=q;break}c[m>>2]=s;m=q;break}else{m=q+1|0;if((q|0)>32767)break b;b[e>>1]=m;c[k+1179664+(q<<2)>>2]=m<<16>>16;q=q*7|0;c[k+1310736+(q<<2)>>2]=1;c[k+1310736+(q+1<<2)>>2]=s;c[k+1310736+(q+2<<2)>>2]=y;c[k+1310736+(q+3<<2)>>2]=s;c[k+1310736+(q+4<<2)>>2]=s;c[k+1310736+(q+5<<2)>>2]=y;c[k+1310736+(q+6<<2)>>2]=y;break}}if(g){m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+(p+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}g=b[e+-2>>1]|0;if(g<<16>>16<=0){b[e>>1]=f;m=o*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-4<<2)|0;if((c[g>>2]|0)>(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+((g<<16>>16)+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+y;m=q}else{b[e>>1]=0;a[l>>0]=0;m=q}while(0);s=s+1|0;g=r+2|0;e=e+2|0;l=l+1|0;if((s|0)>=(z|0))break;else{r=g;q=m}}}y=y+1|0;if((y|0)>=(A|0)){o=m;C=52;break a}else{l=l+2|0;g=g+t|0;e=e+4|0}}Me(3,3904,B);l=-1}else{o=0;C=52}while(0);if((C|0)==52){e=k+12|0;if((o|0)<1)m=1;else{g=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(g|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((g|0)<(o|0)){g=g+1|0;n=n+4|0}else break}}f=k+8|0;l=m+-1|0;c[f>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[f>>2]|0))}if((o|0)>0){e=0;do{n=(c[k+1179664+(e<<2)>>2]|0)+-1|0;g=e*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(g<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(g+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(g+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(g+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(g+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(g+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(g+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;e=e+1|0}while((e|0)<(o|0))}if((c[f>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[f>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function xd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}z=D+-1|0;if((g|0)>1){l=0;m=o;n=o+(z<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{m=m+(D<<1)|0;n=n+(D<<1)|0}}}n=k+1179664|0;m=D+1|0;w=0-D|0;u=1-D|0;v=~D;t=(f<<1)+8|0;a:do if((A|0)>1){x=(z|0)>1;l=(c[k+4>>2]|0)+m|0;y=1;g=e+((f<<2)+4)|0;e=o+(m<<1)|0;m=0;b:while(1){if(x){s=1;r=g;q=m;while(1){do if((d[r+1>>0]|0|0)>(j|0)){a[l>>0]=-1;m=b[e+(w<<1)>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}f=b[e+(u<<1)>>1]|0;o=f<<16>>16;m=b[e+(v<<1)>>1]|0;p=m<<16>>16;g=m<<16>>16>0;if(f<<16>>16<=0){if(g){b[e>>1]=m;m=p*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-3<<2)|0;if((c[g>>2]|0)<(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=b[e+-2>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(s|0)){m=q;break}c[m>>2]=s;m=q;break}else{m=q+1|0;if((q|0)>32767)break b;b[e>>1]=m;c[k+1179664+(q<<2)>>2]=m<<16>>16;q=q*7|0;c[k+1310736+(q<<2)>>2]=1;c[k+1310736+(q+1<<2)>>2]=s;c[k+1310736+(q+2<<2)>>2]=y;c[k+1310736+(q+3<<2)>>2]=s;c[k+1310736+(q+4<<2)>>2]=s;c[k+1310736+(q+5<<2)>>2]=y;c[k+1310736+(q+6<<2)>>2]=y;break}}if(g){m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+(p+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}g=b[e+-2>>1]|0;if(g<<16>>16<=0){b[e>>1]=f;m=o*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-4<<2)|0;if((c[g>>2]|0)>(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+((g<<16>>16)+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+y;m=q}else{b[e>>1]=0;a[l>>0]=0;m=q}while(0);s=s+1|0;g=r+4|0;e=e+2|0;l=l+1|0;if((s|0)>=(z|0))break;else{r=g;q=m}}}y=y+1|0;if((y|0)>=(A|0)){o=m;C=52;break a}else{l=l+2|0;g=g+t|0;e=e+4|0}}Me(3,3904,B);l=-1}else{o=0;C=52}while(0);if((C|0)==52){e=k+12|0;if((o|0)<1)m=1;else{g=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(g|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((g|0)<(o|0)){g=g+1|0;n=n+4|0}else break}}f=k+8|0;l=m+-1|0;c[f>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[f>>2]|0))}if((o|0)>0){e=0;do{n=(c[k+1179664+(e<<2)>>2]|0)+-1|0;g=e*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(g<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(g+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(g+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(g+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(g+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(g+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(g+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;e=e+1|0}while((e|0)<(o|0))}if((c[f>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[f>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function yd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}z=D+-1|0;if((g|0)>1){l=0;m=o;n=o+(z<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{m=m+(D<<1)|0;n=n+(D<<1)|0}}}n=k+1179664|0;m=D+1|0;w=0-D|0;u=1-D|0;v=~D;t=(f<<1)+8|0;a:do if((A|0)>1){x=(z|0)>1;l=(c[k+4>>2]|0)+m|0;y=1;g=e+((f<<2)+4)|0;e=o+(m<<1)|0;m=0;b:while(1){if(x){s=1;r=g;q=m;while(1){do if((d[r>>0]|0|0)>(j|0)){a[l>>0]=-1;m=b[e+(w<<1)>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}f=b[e+(u<<1)>>1]|0;o=f<<16>>16;m=b[e+(v<<1)>>1]|0;p=m<<16>>16;g=m<<16>>16>0;if(f<<16>>16<=0){if(g){b[e>>1]=m;m=p*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-3<<2)|0;if((c[g>>2]|0)<(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=b[e+-2>>1]|0;if(m<<16>>16>0){b[e>>1]=m;m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(s|0)){m=q;break}c[m>>2]=s;m=q;break}else{m=q+1|0;if((q|0)>32767)break b;b[e>>1]=m;c[k+1179664+(q<<2)>>2]=m<<16>>16;q=q*7|0;c[k+1310736+(q<<2)>>2]=1;c[k+1310736+(q+1<<2)>>2]=s;c[k+1310736+(q+2<<2)>>2]=y;c[k+1310736+(q+3<<2)>>2]=s;c[k+1310736+(q+4<<2)>>2]=s;c[k+1310736+(q+5<<2)>>2]=y;c[k+1310736+(q+6<<2)>>2]=y;break}}if(g){m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+(p+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=k+1310736+(m+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+y;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}g=b[e+-2>>1]|0;if(g<<16>>16<=0){b[e>>1]=f;m=o*7|0;g=k+1310736+(m+-7<<2)|0;c[g>>2]=(c[g>>2]|0)+1;g=k+1310736+(m+-6<<2)|0;c[g>>2]=(c[g>>2]|0)+s;g=k+1310736+(m+-5<<2)|0;c[g>>2]=(c[g>>2]|0)+y;g=k+1310736+(m+-4<<2)|0;if((c[g>>2]|0)>(s|0))c[g>>2]=s;c[k+1310736+(m+-1<<2)>>2]=y;m=q;break}m=c[k+1179664+(o+-1<<2)>>2]|0;o=c[k+1179664+((g<<16>>16)+-1<<2)>>2]|0;if((m|0)>(o|0)){b[e>>1]=o;if((q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(m|0))c[f>>2]=o;g=g+1|0;if((g|0)>=(q|0)){m=o;break}else f=f+4|0}}else m=o}else{b[e>>1]=m;if((m|0)<(o|0)&(q|0)>0){g=0;f=n;while(1){if((c[f>>2]|0)==(o|0))c[f>>2]=m;g=g+1|0;if((g|0)>=(q|0))break;else f=f+4|0}}}m=(m<<16>>16)*7|0;p=k+1310736+(m+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=k+1310736+(m+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+y;m=q}else{b[e>>1]=0;a[l>>0]=0;m=q}while(0);s=s+1|0;g=r+4|0;e=e+2|0;l=l+1|0;if((s|0)>=(z|0))break;else{r=g;q=m}}}y=y+1|0;if((y|0)>=(A|0)){o=m;C=52;break a}else{l=l+2|0;g=g+t|0;e=e+4|0}}Me(3,3904,B);l=-1}else{o=0;C=52}while(0);if((C|0)==52){e=k+12|0;if((o|0)<1)m=1;else{g=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(g|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((g|0)<(o|0)){g=g+1|0;n=n+4|0}else break}}f=k+8|0;l=m+-1|0;c[f>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[f>>2]|0))}if((o|0)>0){e=0;do{n=(c[k+1179664+(e<<2)>>2]|0)+-1|0;g=e*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(g<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(g+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(g+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(g+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(g+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(g+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(g+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;e=e+1|0}while((e|0)<(o|0))}if((c[f>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[f>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}
function ec(a){a=a|0;var b=0;b=i;i=i+a|0;i=i+15&-16;return b|0}function fc(){return i|0}function gc(a){a=a|0;i=a}function hc(a,b){a=a|0;b=b|0;i=a;j=b}function ic(a,b){a=a|0;b=b|0;if(!o){o=a;p=b}}function jc(b){b=b|0;a[k>>0]=a[b>>0];a[k+1>>0]=a[b+1>>0];a[k+2>>0]=a[b+2>>0];a[k+3>>0]=a[b+3>>0]}function kc(b){b=b|0;a[k>>0]=a[b>>0];a[k+1>>0]=a[b+1>>0];a[k+2>>0]=a[b+2>>0];a[k+3>>0]=a[b+3>>0];a[k+4>>0]=a[b+4>>0];a[k+5>>0]=a[b+5>>0];a[k+6>>0]=a[b+6>>0];a[k+7>>0]=a[b+7>>0]}function lc(a){a=a|0;D=a}function mc(){return D|0}function nc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e*3|0)+12|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e*6|0)+6)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){do if(((d[g+1>>0]|0)+(d[g>>0]|0)+(d[g+2>>0]|0)|0)>(w|0)){b[o>>1]=0;k=n}else{k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}while(0);p=p+1|0;g=g+6|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function oc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<1)+8|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<2)+4)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){a=d[g>>0]|0;e=d[g+1>>0]|0;do if(((a&248)+10+(a<<5&224)+(e>>>3&28)+(e<<3&248)|0)>(w|0)){b[o>>1]=0;k=n}else{k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}while(0);p=p+1|0;g=g+4|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function pc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<2)+16|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<3)+8)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){do if(((d[g+1>>0]|0)+(d[g>>0]|0)+(d[g+2>>0]|0)|0)>(w|0)){b[o>>1]=0;k=n}else{k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}while(0);p=p+1|0;g=g+8|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function qc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<1)+8|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<2)+4)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){e=d[g>>0]|0;do if(((e&240)+24+(e<<4&240)+((d[g+1>>0]|0)&240)|0)>(w|0)){b[o>>1]=0;k=n}else{k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}while(0);p=p+1|0;g=g+4|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function rc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<1)+8|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<2)+4)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){a=d[g>>0]|0;e=d[g+1>>0]|0;do if(((a&248)+12+(a<<5&224)+(e>>>3&24)+(e<<2&248)|0)>(w|0)){b[o>>1]=0;k=n}else{k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}while(0);p=p+1|0;g=g+4|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function sc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<2)+16|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<3)+8)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){do if(((d[g+2>>0]|0)+(d[g+1>>0]|0)+(d[g+3>>0]|0)|0)>(w|0)){b[o>>1]=0;k=n}else{k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}while(0);p=p+1|0;g=g+8|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function tc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}x=B+-1|0;if((f|0)>1){k=0;l=n;m=n+(x<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{l=l+(B<<1)|0;m=m+(B<<1)|0}}}m=j+1179664|0;u=0-B|0;s=1-B|0;t=~B;r=e+4|0;a:do if((y|0)>1){v=(x|0)>1;w=1;l=a+((e<<1)+2)|0;f=n+(B+1<<1)|0;k=0;b:while(1){if(v){q=1;p=f;o=k;while(1){do if((d[l>>0]|0|0)>(g|0)){b[p>>1]=0;k=o}else{k=b[p+(u<<1)>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}a=b[p+(s<<1)>>1]|0;e=a<<16>>16;k=b[p+(t<<1)>>1]|0;n=k<<16>>16;f=k<<16>>16>0;if(a<<16>>16<=0){if(f){b[p>>1]=k;k=n*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-3<<2)|0;if((c[f>>2]|0)<(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=b[p+-2>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(q|0)){k=o;break}c[k>>2]=q;k=o;break}else{k=o+1|0;if((o|0)>32767)break b;b[p>>1]=k;c[j+1179664+(o<<2)>>2]=k<<16>>16;o=o*7|0;c[j+1310736+(o<<2)>>2]=1;c[j+1310736+(o+1<<2)>>2]=q;c[j+1310736+(o+2<<2)>>2]=w;c[j+1310736+(o+3<<2)>>2]=q;c[j+1310736+(o+4<<2)>>2]=q;c[j+1310736+(o+5<<2)>>2]=w;c[j+1310736+(o+6<<2)>>2]=w;break}}if(f){k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+(n+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}f=b[p+-2>>1]|0;if(f<<16>>16<=0){b[p>>1]=a;k=e*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-4<<2)|0;if((c[f>>2]|0)>(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+((f<<16>>16)+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=o}while(0);q=q+1|0;l=l+2|0;f=p+2|0;if((q|0)>=(x|0))break;else{p=f;o=k}}}w=w+1|0;if((w|0)>=(y|0)){n=k;A=52;break a}else{l=l+r|0;f=f+4|0}}Me(3,3904,z);k=-1}else{n=0;A=52}while(0);if((A|0)==52){a=j+12|0;if((n|0)<1)l=1;else{f=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(f|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((f|0)<(n|0)){f=f+1|0;m=m+4|0}else break}}e=j+8|0;k=l+-1|0;c[e>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[e>>2]|0))}if((n|0)>0){a=0;do{m=(c[j+1179664+(a<<2)>>2]|0)+-1|0;f=a*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(f<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(f+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(f+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(f+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(f+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(f+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(f+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;a=a+1|0}while((a|0)<(n|0))}if((c[e>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[e>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function uc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}x=B+-1|0;if((f|0)>1){k=0;l=n;m=n+(x<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{l=l+(B<<1)|0;m=m+(B<<1)|0}}}m=j+1179664|0;u=0-B|0;s=1-B|0;t=~B;r=(e<<1)+8|0;a:do if((y|0)>1){v=(x|0)>1;w=1;l=a+((e<<2)+4)|0;f=n+(B+1<<1)|0;k=0;b:while(1){if(v){q=1;p=f;o=k;while(1){do if((d[l+1>>0]|0|0)>(g|0)){b[p>>1]=0;k=o}else{k=b[p+(u<<1)>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}a=b[p+(s<<1)>>1]|0;e=a<<16>>16;k=b[p+(t<<1)>>1]|0;n=k<<16>>16;f=k<<16>>16>0;if(a<<16>>16<=0){if(f){b[p>>1]=k;k=n*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-3<<2)|0;if((c[f>>2]|0)<(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=b[p+-2>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(q|0)){k=o;break}c[k>>2]=q;k=o;break}else{k=o+1|0;if((o|0)>32767)break b;b[p>>1]=k;c[j+1179664+(o<<2)>>2]=k<<16>>16;o=o*7|0;c[j+1310736+(o<<2)>>2]=1;c[j+1310736+(o+1<<2)>>2]=q;c[j+1310736+(o+2<<2)>>2]=w;c[j+1310736+(o+3<<2)>>2]=q;c[j+1310736+(o+4<<2)>>2]=q;c[j+1310736+(o+5<<2)>>2]=w;c[j+1310736+(o+6<<2)>>2]=w;break}}if(f){k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+(n+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}f=b[p+-2>>1]|0;if(f<<16>>16<=0){b[p>>1]=a;k=e*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-4<<2)|0;if((c[f>>2]|0)>(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+((f<<16>>16)+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=o}while(0);q=q+1|0;l=l+4|0;f=p+2|0;if((q|0)>=(x|0))break;else{p=f;o=k}}}w=w+1|0;if((w|0)>=(y|0)){n=k;A=52;break a}else{l=l+r|0;f=f+4|0}}Me(3,3904,z);k=-1}else{n=0;A=52}while(0);if((A|0)==52){a=j+12|0;if((n|0)<1)l=1;else{f=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(f|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((f|0)<(n|0)){f=f+1|0;m=m+4|0}else break}}e=j+8|0;k=l+-1|0;c[e>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[e>>2]|0))}if((n|0)>0){a=0;do{m=(c[j+1179664+(a<<2)>>2]|0)+-1|0;f=a*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(f<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(f+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(f+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(f+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(f+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(f+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(f+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;a=a+1|0}while((a|0)<(n|0))}if((c[e>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[e>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function vc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}x=B+-1|0;if((f|0)>1){k=0;l=n;m=n+(x<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{l=l+(B<<1)|0;m=m+(B<<1)|0}}}m=j+1179664|0;u=0-B|0;s=1-B|0;t=~B;r=(e<<1)+8|0;a:do if((y|0)>1){v=(x|0)>1;w=1;l=a+((e<<2)+4)|0;f=n+(B+1<<1)|0;k=0;b:while(1){if(v){q=1;p=f;o=k;while(1){do if((d[l>>0]|0|0)>(g|0)){b[p>>1]=0;k=o}else{k=b[p+(u<<1)>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}a=b[p+(s<<1)>>1]|0;e=a<<16>>16;k=b[p+(t<<1)>>1]|0;n=k<<16>>16;f=k<<16>>16>0;if(a<<16>>16<=0){if(f){b[p>>1]=k;k=n*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-3<<2)|0;if((c[f>>2]|0)<(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=b[p+-2>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(q|0)){k=o;break}c[k>>2]=q;k=o;break}else{k=o+1|0;if((o|0)>32767)break b;b[p>>1]=k;c[j+1179664+(o<<2)>>2]=k<<16>>16;o=o*7|0;c[j+1310736+(o<<2)>>2]=1;c[j+1310736+(o+1<<2)>>2]=q;c[j+1310736+(o+2<<2)>>2]=w;c[j+1310736+(o+3<<2)>>2]=q;c[j+1310736+(o+4<<2)>>2]=q;c[j+1310736+(o+5<<2)>>2]=w;c[j+1310736+(o+6<<2)>>2]=w;break}}if(f){k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+(n+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}f=b[p+-2>>1]|0;if(f<<16>>16<=0){b[p>>1]=a;k=e*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-4<<2)|0;if((c[f>>2]|0)>(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+((f<<16>>16)+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=o}while(0);q=q+1|0;l=l+4|0;f=p+2|0;if((q|0)>=(x|0))break;else{p=f;o=k}}}w=w+1|0;if((w|0)>=(y|0)){n=k;A=52;break a}else{l=l+r|0;f=f+4|0}}Me(3,3904,z);k=-1}else{n=0;A=52}while(0);if((A|0)==52){a=j+12|0;if((n|0)<1)l=1;else{f=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(f|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((f|0)<(n|0)){f=f+1|0;m=m+4|0}else break}}e=j+8|0;k=l+-1|0;c[e>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[e>>2]|0))}if((n|0)>0){a=0;do{m=(c[j+1179664+(a<<2)>>2]|0)+-1|0;f=a*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(f<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(f+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(f+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(f+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(f+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(f+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(f+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;a=a+1|0}while((a|0)<(n|0))}if((c[e>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[e>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function wc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k*3|0)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){do if(((d[g+1>>0]|0)+(d[g>>0]|0)+(d[g+2>>0]|0)|0)>(y|0)){b[q>>1]=0;k=p}else{k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}while(0);r=r+1|0;g=g+3|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+6|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function xc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<1)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){n=d[g>>0]|0;o=d[g+1>>0]|0;do if(((n&248)+10+(n<<5&224)+(o>>>3&28)+(o<<3&248)|0)>(y|0)){b[q>>1]=0;k=p}else{k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}while(0);r=r+1|0;g=g+2|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+4|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function yc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<2)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){do if(((d[g+1>>0]|0)+(d[g>>0]|0)+(d[g+2>>0]|0)|0)>(y|0)){b[q>>1]=0;k=p}else{k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}while(0);r=r+1|0;g=g+4|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+8|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function zc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<1)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){o=d[g>>0]|0;do if(((o&240)+24+(o<<4&240)+((d[g+1>>0]|0)&240)|0)>(y|0)){b[q>>1]=0;k=p}else{k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}while(0);r=r+1|0;g=g+2|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+4|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Ac(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<1)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){n=d[g>>0]|0;o=d[g+1>>0]|0;do if(((n&248)+12+(n<<5&224)+(o>>>3&24)+(o<<2&248)|0)>(y|0)){b[q>>1]=0;k=p}else{k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}while(0);r=r+1|0;g=g+2|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+4|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Bc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<2)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){do if(((d[g+2>>0]|0)+(d[g+1>>0]|0)+(d[g+3>>0]|0)|0)>(y|0)){b[q>>1]=0;k=p}else{k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}while(0);r=r+1|0;g=g+4|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+8|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Cc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=e+-1|0;if((f|0)>0){k=0;l=n;m=n+(y<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{l=l+(e<<1)|0;m=m+(e<<1)|0}}}m=j+1179664|0;k=e+1|0;v=0-e|0;t=1-e|0;u=~e;a:do if((z|0)>1){w=(y|0)>1;x=1;l=a+k|0;a=n+(k<<1)|0;k=0;b:while(1){if(w){s=1;r=a;q=k;while(1){do if((d[l>>0]|0|0)>(g|0)){b[r>>1]=0;k=q}else{k=b[r+(v<<1)>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}n=b[r+(t<<1)>>1]|0;o=n<<16>>16;k=b[r+(u<<1)>>1]|0;p=k<<16>>16;a=k<<16>>16>0;if(n<<16>>16<=0){if(a){b[r>>1]=k;k=p*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-3<<2)|0;if((c[a>>2]|0)<(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(s|0)){k=q;break}c[k>>2]=s;k=q;break}else{k=q+1|0;if((q|0)>32767)break b;b[r>>1]=k;c[j+1179664+(q<<2)>>2]=k<<16>>16;q=q*7|0;c[j+1310736+(q<<2)>>2]=1;c[j+1310736+(q+1<<2)>>2]=s;c[j+1310736+(q+2<<2)>>2]=x;c[j+1310736+(q+3<<2)>>2]=s;c[j+1310736+(q+4<<2)>>2]=s;c[j+1310736+(q+5<<2)>>2]=x;c[j+1310736+(q+6<<2)>>2]=x;break}}if(a){k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+(p+-1<<2)>>2]|0;if((k|0)>(o|0)){b[r>>1]=o;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}else{b[r>>1]=k;if((k|0)<(o|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16<=0){b[r>>1]=n;k=o*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-4<<2)|0;if((c[a>>2]|0)>(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}o=c[j+1179664+(o+-1<<2)>>2]|0;k=c[j+1179664+((k<<16>>16)+-1<<2)>>2]|0;if((o|0)>(k|0)){b[r>>1]=k;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}else{b[r>>1]=o;if((o|0)<(k|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+x;k=q}while(0);s=s+1|0;l=l+1|0;a=r+2|0;if((s|0)>=(y|0))break;else{r=a;q=k}}}x=x+1|0;if((x|0)>=(z|0)){p=k;B=52;break a}else{l=l+2|0;a=a+4|0}}Me(3,3904,A);k=-1}else{p=0;B=52}while(0);if((B|0)==52){n=j+12|0;if((p|0)<1)l=1;else{a=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(a|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((a|0)<(p|0)){a=a+1|0;m=m+4|0}else break}}o=j+8|0;k=l+-1|0;c[o>>2]=k;if(k){ek(n|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[o>>2]|0))}if((p|0)>0){n=0;do{m=(c[j+1179664+(n<<2)>>2]|0)+-1|0;a=n*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(a<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(a+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(a+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(a+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(a+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(a+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(a+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;n=n+1|0}while((n|0)<(p|0))}if((c[o>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[o>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Dc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=e+-1|0;if((f|0)>0){k=0;l=n;m=n+(y<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{l=l+(e<<1)|0;m=m+(e<<1)|0}}}m=j+1179664|0;k=e+1|0;v=0-e|0;t=1-e|0;u=~e;a:do if((z|0)>1){w=(y|0)>1;x=1;l=a+(k<<1)|0;a=n+(k<<1)|0;k=0;b:while(1){if(w){s=1;r=a;q=k;while(1){do if((d[l+1>>0]|0|0)>(g|0)){b[r>>1]=0;k=q}else{k=b[r+(v<<1)>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}n=b[r+(t<<1)>>1]|0;o=n<<16>>16;k=b[r+(u<<1)>>1]|0;p=k<<16>>16;a=k<<16>>16>0;if(n<<16>>16<=0){if(a){b[r>>1]=k;k=p*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-3<<2)|0;if((c[a>>2]|0)<(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(s|0)){k=q;break}c[k>>2]=s;k=q;break}else{k=q+1|0;if((q|0)>32767)break b;b[r>>1]=k;c[j+1179664+(q<<2)>>2]=k<<16>>16;q=q*7|0;c[j+1310736+(q<<2)>>2]=1;c[j+1310736+(q+1<<2)>>2]=s;c[j+1310736+(q+2<<2)>>2]=x;c[j+1310736+(q+3<<2)>>2]=s;c[j+1310736+(q+4<<2)>>2]=s;c[j+1310736+(q+5<<2)>>2]=x;c[j+1310736+(q+6<<2)>>2]=x;break}}if(a){k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+(p+-1<<2)>>2]|0;if((k|0)>(o|0)){b[r>>1]=o;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}else{b[r>>1]=k;if((k|0)<(o|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}a=b[r+-2>>1]|0;if(a<<16>>16<=0){b[r>>1]=n;k=o*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-4<<2)|0;if((c[a>>2]|0)>(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+((a<<16>>16)+-1<<2)>>2]|0;if((k|0)>(o|0)){b[r>>1]=o;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}else{b[r>>1]=k;if((k|0)<(o|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+x;k=q}while(0);s=s+1|0;l=l+2|0;a=r+2|0;if((s|0)>=(y|0))break;else{r=a;q=k}}}x=x+1|0;if((x|0)>=(z|0)){p=k;B=52;break a}else{l=l+4|0;a=a+4|0}}Me(3,3904,A);k=-1}else{p=0;B=52}while(0);if((B|0)==52){n=j+12|0;if((p|0)<1)l=1;else{a=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(a|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((a|0)<(p|0)){a=a+1|0;m=m+4|0}else break}}o=j+8|0;k=l+-1|0;c[o>>2]=k;if(k){ek(n|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[o>>2]|0))}if((p|0)>0){n=0;do{m=(c[j+1179664+(n<<2)>>2]|0)+-1|0;a=n*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(a<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(a+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(a+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(a+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(a+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(a+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(a+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;n=n+1|0}while((n|0)<(p|0))}if((c[o>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[o>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Ec(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=e+-1|0;if((f|0)>0){k=0;l=n;m=n+(y<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{l=l+(e<<1)|0;m=m+(e<<1)|0}}}m=j+1179664|0;k=e+1|0;v=0-e|0;t=1-e|0;u=~e;a:do if((z|0)>1){w=(y|0)>1;x=1;l=a+(k<<1)|0;a=n+(k<<1)|0;k=0;b:while(1){if(w){s=1;r=a;q=k;while(1){do if((d[l>>0]|0|0)>(g|0)){b[r>>1]=0;k=q}else{k=b[r+(v<<1)>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}n=b[r+(t<<1)>>1]|0;o=n<<16>>16;k=b[r+(u<<1)>>1]|0;p=k<<16>>16;a=k<<16>>16>0;if(n<<16>>16<=0){if(a){b[r>>1]=k;k=p*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-3<<2)|0;if((c[a>>2]|0)<(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(s|0)){k=q;break}c[k>>2]=s;k=q;break}else{k=q+1|0;if((q|0)>32767)break b;b[r>>1]=k;c[j+1179664+(q<<2)>>2]=k<<16>>16;q=q*7|0;c[j+1310736+(q<<2)>>2]=1;c[j+1310736+(q+1<<2)>>2]=s;c[j+1310736+(q+2<<2)>>2]=x;c[j+1310736+(q+3<<2)>>2]=s;c[j+1310736+(q+4<<2)>>2]=s;c[j+1310736+(q+5<<2)>>2]=x;c[j+1310736+(q+6<<2)>>2]=x;break}}if(a){k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+(p+-1<<2)>>2]|0;if((k|0)>(o|0)){b[r>>1]=o;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}else{b[r>>1]=k;if((k|0)<(o|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16<=0){b[r>>1]=n;k=o*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-4<<2)|0;if((c[a>>2]|0)>(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}o=c[j+1179664+(o+-1<<2)>>2]|0;k=c[j+1179664+((k<<16>>16)+-1<<2)>>2]|0;if((o|0)>(k|0)){b[r>>1]=k;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}else{b[r>>1]=o;if((o|0)<(k|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+x;k=q}while(0);s=s+1|0;l=l+2|0;a=r+2|0;if((s|0)>=(y|0))break;else{r=a;q=k}}}x=x+1|0;if((x|0)>=(z|0)){p=k;B=52;break a}else{l=l+4|0;a=a+4|0}}Me(3,3904,A);k=-1}else{p=0;B=52}while(0);if((B|0)==52){n=j+12|0;if((p|0)<1)l=1;else{a=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(a|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((a|0)<(p|0)){a=a+1|0;m=m+4|0}else break}}o=j+8|0;k=l+-1|0;c[o>>2]=k;if(k){ek(n|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[o>>2]|0))}if((p|0)>0){n=0;do{m=(c[j+1179664+(n<<2)>>2]|0)+-1|0;a=n*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(a<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(a+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(a+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(a+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(a+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(a+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(a+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;n=n+1|0}while((n|0)<(p|0))}if((c[o>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[o>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Fc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=e+-1|0;if((f|0)>0){k=0;l=n;m=n+(y<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{l=l+(e<<1)|0;m=m+(e<<1)|0}}}m=j+1179664|0;k=e+1|0;v=0-e|0;t=1-e|0;u=~e;a:do if((z|0)>1){w=(y|0)>1;x=1;l=a+k|0;a=n+(k<<1)|0;n=g+k|0;k=0;b:while(1){if(w){s=1;r=l;q=k;while(1){do if((d[r>>0]|0)>(d[n>>0]|0)){b[a>>1]=0;k=q}else{k=b[a+(v<<1)>>1]|0;if(k<<16>>16>0){b[a>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}g=b[a+(t<<1)>>1]|0;o=g<<16>>16;k=b[a+(u<<1)>>1]|0;p=k<<16>>16;l=k<<16>>16>0;if(g<<16>>16<=0){if(l){b[a>>1]=k;k=p*7|0;l=j+1310736+(k+-7<<2)|0;c[l>>2]=(c[l>>2]|0)+1;l=j+1310736+(k+-6<<2)|0;c[l>>2]=(c[l>>2]|0)+s;l=j+1310736+(k+-5<<2)|0;c[l>>2]=(c[l>>2]|0)+x;l=j+1310736+(k+-3<<2)|0;if((c[l>>2]|0)<(s|0))c[l>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[a+-2>>1]|0;if(k<<16>>16>0){b[a>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(s|0)){k=q;break}c[k>>2]=s;k=q;break}else{k=q+1|0;if((q|0)>32767)break b;b[a>>1]=k;c[j+1179664+(q<<2)>>2]=k<<16>>16;q=q*7|0;c[j+1310736+(q<<2)>>2]=1;c[j+1310736+(q+1<<2)>>2]=s;c[j+1310736+(q+2<<2)>>2]=x;c[j+1310736+(q+3<<2)>>2]=s;c[j+1310736+(q+4<<2)>>2]=s;c[j+1310736+(q+5<<2)>>2]=x;c[j+1310736+(q+6<<2)>>2]=x;break}}if(l){k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+(p+-1<<2)>>2]|0;if((k|0)>(o|0)){b[a>>1]=o;if((q|0)>0){l=0;g=m;while(1){if((c[g>>2]|0)==(k|0))c[g>>2]=o;l=l+1|0;if((l|0)>=(q|0)){k=o;break}else g=g+4|0}}else k=o}else{b[a>>1]=k;if((k|0)<(o|0)&(q|0)>0){l=0;g=m;while(1){if((c[g>>2]|0)==(o|0))c[g>>2]=k;l=l+1|0;if((l|0)>=(q|0))break;else g=g+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[a+-2>>1]|0;if(k<<16>>16<=0){b[a>>1]=g;k=o*7|0;l=j+1310736+(k+-7<<2)|0;c[l>>2]=(c[l>>2]|0)+1;l=j+1310736+(k+-6<<2)|0;c[l>>2]=(c[l>>2]|0)+s;l=j+1310736+(k+-5<<2)|0;c[l>>2]=(c[l>>2]|0)+x;l=j+1310736+(k+-4<<2)|0;if((c[l>>2]|0)>(s|0))c[l>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}o=c[j+1179664+(o+-1<<2)>>2]|0;k=c[j+1179664+((k<<16>>16)+-1<<2)>>2]|0;if((o|0)>(k|0)){b[a>>1]=k;if((q|0)>0){l=0;g=m;while(1){if((c[g>>2]|0)==(o|0))c[g>>2]=k;l=l+1|0;if((l|0)>=(q|0))break;else g=g+4|0}}}else{b[a>>1]=o;if((o|0)<(k|0)&(q|0)>0){l=0;g=m;while(1){if((c[g>>2]|0)==(k|0))c[g>>2]=o;l=l+1|0;if((l|0)>=(q|0)){k=o;break}else g=g+4|0}}else k=o}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+x;k=q}while(0);s=s+1|0;l=r+1|0;n=n+1|0;a=a+2|0;if((s|0)>=(y|0))break;else{r=l;q=k}}}x=x+1|0;if((x|0)>=(z|0)){o=k;B=52;break a}else{l=l+2|0;a=a+4|0;n=n+2|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){n=j+12|0;if((o|0)<1)l=1;else{a=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(a|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((a|0)<(o|0)){a=a+1|0;m=m+4|0}else break}}g=j+8|0;k=l+-1|0;c[g>>2]=k;if(k){ek(n|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[g>>2]|0))}if((o|0)>0){n=0;do{m=(c[j+1179664+(n<<2)>>2]|0)+-1|0;a=n*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(a<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(a+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(a+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(a+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(a+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(a+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(a+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;n=n+1|0}while((n|0)<(o|0))}if((c[g>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[g>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Gc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e*3|0)+12|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e*6|0)+6)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){do if(((d[g+1>>0]|0)+(d[g>>0]|0)+(d[g+2>>0]|0)|0)>(w|0)){k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}else{b[o>>1]=0;k=n}while(0);p=p+1|0;g=g+6|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function Hc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<1)+8|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<2)+4)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){a=d[g>>0]|0;e=d[g+1>>0]|0;do if(((a&248)+10+(a<<5&224)+(e>>>3&28)+(e<<3&248)|0)>(w|0)){k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}else{b[o>>1]=0;k=n}while(0);p=p+1|0;g=g+4|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function Ic(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<2)+16|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<3)+8)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){do if(((d[g+1>>0]|0)+(d[g>>0]|0)+(d[g+2>>0]|0)|0)>(w|0)){k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}else{b[o>>1]=0;k=n}while(0);p=p+1|0;g=g+8|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}
function Jc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<1)+8|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<2)+4)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){e=d[g>>0]|0;do if(((e&240)+24+(e<<4&240)+((d[g+1>>0]|0)&240)|0)>(w|0)){k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}else{b[o>>1]=0;k=n}while(0);p=p+1|0;g=g+4|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function Kc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<1)+8|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<2)+4)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){a=d[g>>0]|0;e=d[g+1>>0]|0;do if(((a&248)+12+(a<<5&224)+(e>>>3&24)+(e<<2&248)|0)>(w|0)){k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}else{b[o>>1]=0;k=n}while(0);p=p+1|0;g=g+4|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function Lc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}w=g*3|0;x=B+-1|0;if((f|0)>1){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{g=g+(B<<1)|0;l=l+(B<<1)|0}}}l=j+1179664|0;t=0-B|0;r=1-B|0;s=~B;q=(e<<2)+16|0;a:do if((y|0)>1){u=(x|0)>1;v=1;g=a+((e<<3)+8)|0;m=n+(B+1<<1)|0;k=0;b:while(1){if(u){p=1;o=m;n=k;while(1){do if(((d[g+2>>0]|0)+(d[g+1>>0]|0)+(d[g+3>>0]|0)|0)>(w|0)){k=b[o+(t<<1)>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}f=b[o+(r<<1)>>1]|0;a=f<<16>>16;k=b[o+(s<<1)>>1]|0;e=k<<16>>16;m=k<<16>>16>0;if(f<<16>>16<=0){if(m){b[o>>1]=k;k=e*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=b[o+-2>>1]|0;if(k<<16>>16>0){b[o>>1]=k;k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(p|0)){k=n;break}c[k>>2]=p;k=n;break}else{k=n+1|0;if((n|0)>32767)break b;b[o>>1]=k;c[j+1179664+(n<<2)>>2]=k<<16>>16;n=n*7|0;c[j+1310736+(n<<2)>>2]=1;c[j+1310736+(n+1<<2)>>2]=p;c[j+1310736+(n+2<<2)>>2]=v;c[j+1310736+(n+3<<2)>>2]=p;c[j+1310736+(n+4<<2)>>2]=p;c[j+1310736+(n+5<<2)>>2]=v;c[j+1310736+(n+6<<2)>>2]=v;break}}if(m){k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+(e+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;e=j+1310736+(k+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+v;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}m=b[o+-2>>1]|0;if(m<<16>>16<=0){b[o>>1]=f;k=a*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+p;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+v;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(p|0))c[m>>2]=p;c[j+1310736+(k+-1<<2)>>2]=v;k=n;break}k=c[j+1179664+(a+-1<<2)>>2]|0;a=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(a|0)){b[o>>1]=a;if((n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(k|0))c[f>>2]=a;m=m+1|0;if((m|0)>=(n|0)){k=a;break}else f=f+4|0}}else k=a}else{b[o>>1]=k;if((k|0)<(a|0)&(n|0)>0){m=0;f=l;while(1){if((c[f>>2]|0)==(a|0))c[f>>2]=k;m=m+1|0;if((m|0)>=(n|0))break;else f=f+4|0}}}k=(k<<16>>16)*7|0;e=j+1310736+(k+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=j+1310736+(k+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+p;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+v;k=n}else{b[o>>1]=0;k=n}while(0);p=p+1|0;g=g+8|0;m=o+2|0;if((p|0)>=(x|0))break;else{o=m;n=k}}}v=v+1|0;if((v|0)>=(y|0)){e=k;A=52;break a}else{g=g+q|0;m=m+4|0}}Me(3,3904,z);k=-1}else{e=0;A=52}while(0);if((A|0)==52){f=j+12|0;if((e|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(e|0)){m=m+1|0;l=l+4|0}else break}}a=j+8|0;k=g+-1|0;c[a>>2]=k;if(k){ek(f|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[a>>2]|0))}if((e|0)>0){f=0;do{l=(c[j+1179664+(f<<2)>>2]|0)+-1|0;m=f*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;f=f+1|0}while((f|0)<(e|0))}if((c[a>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[a>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function Mc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}x=B+-1|0;if((f|0)>1){k=0;l=n;m=n+(x<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{l=l+(B<<1)|0;m=m+(B<<1)|0}}}m=j+1179664|0;u=0-B|0;s=1-B|0;t=~B;r=e+4|0;a:do if((y|0)>1){v=(x|0)>1;w=1;l=a+((e<<1)+2)|0;f=n+(B+1<<1)|0;k=0;b:while(1){if(v){q=1;p=f;o=k;while(1){do if((d[l>>0]|0|0)>(g|0)){k=b[p+(u<<1)>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}a=b[p+(s<<1)>>1]|0;e=a<<16>>16;k=b[p+(t<<1)>>1]|0;n=k<<16>>16;f=k<<16>>16>0;if(a<<16>>16<=0){if(f){b[p>>1]=k;k=n*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-3<<2)|0;if((c[f>>2]|0)<(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=b[p+-2>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(q|0)){k=o;break}c[k>>2]=q;k=o;break}else{k=o+1|0;if((o|0)>32767)break b;b[p>>1]=k;c[j+1179664+(o<<2)>>2]=k<<16>>16;o=o*7|0;c[j+1310736+(o<<2)>>2]=1;c[j+1310736+(o+1<<2)>>2]=q;c[j+1310736+(o+2<<2)>>2]=w;c[j+1310736+(o+3<<2)>>2]=q;c[j+1310736+(o+4<<2)>>2]=q;c[j+1310736+(o+5<<2)>>2]=w;c[j+1310736+(o+6<<2)>>2]=w;break}}if(f){k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+(n+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}f=b[p+-2>>1]|0;if(f<<16>>16<=0){b[p>>1]=a;k=e*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-4<<2)|0;if((c[f>>2]|0)>(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+((f<<16>>16)+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=o}else{b[p>>1]=0;k=o}while(0);q=q+1|0;l=l+2|0;f=p+2|0;if((q|0)>=(x|0))break;else{p=f;o=k}}}w=w+1|0;if((w|0)>=(y|0)){n=k;A=52;break a}else{l=l+r|0;f=f+4|0}}Me(3,3904,z);k=-1}else{n=0;A=52}while(0);if((A|0)==52){a=j+12|0;if((n|0)<1)l=1;else{f=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(f|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((f|0)<(n|0)){f=f+1|0;m=m+4|0}else break}}e=j+8|0;k=l+-1|0;c[e>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[e>>2]|0))}if((n|0)>0){a=0;do{m=(c[j+1179664+(a<<2)>>2]|0)+-1|0;f=a*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(f<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(f+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(f+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(f+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(f+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(f+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(f+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;a=a+1|0}while((a|0)<(n|0))}if((c[e>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[e>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function Nc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}x=B+-1|0;if((f|0)>1){k=0;l=n;m=n+(x<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{l=l+(B<<1)|0;m=m+(B<<1)|0}}}m=j+1179664|0;u=0-B|0;s=1-B|0;t=~B;r=(e<<1)+8|0;a:do if((y|0)>1){v=(x|0)>1;w=1;l=a+((e<<2)+4)|0;f=n+(B+1<<1)|0;k=0;b:while(1){if(v){q=1;p=f;o=k;while(1){do if((d[l+1>>0]|0|0)>(g|0)){k=b[p+(u<<1)>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}a=b[p+(s<<1)>>1]|0;e=a<<16>>16;k=b[p+(t<<1)>>1]|0;n=k<<16>>16;f=k<<16>>16>0;if(a<<16>>16<=0){if(f){b[p>>1]=k;k=n*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-3<<2)|0;if((c[f>>2]|0)<(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=b[p+-2>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(q|0)){k=o;break}c[k>>2]=q;k=o;break}else{k=o+1|0;if((o|0)>32767)break b;b[p>>1]=k;c[j+1179664+(o<<2)>>2]=k<<16>>16;o=o*7|0;c[j+1310736+(o<<2)>>2]=1;c[j+1310736+(o+1<<2)>>2]=q;c[j+1310736+(o+2<<2)>>2]=w;c[j+1310736+(o+3<<2)>>2]=q;c[j+1310736+(o+4<<2)>>2]=q;c[j+1310736+(o+5<<2)>>2]=w;c[j+1310736+(o+6<<2)>>2]=w;break}}if(f){k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+(n+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}f=b[p+-2>>1]|0;if(f<<16>>16<=0){b[p>>1]=a;k=e*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-4<<2)|0;if((c[f>>2]|0)>(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+((f<<16>>16)+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=o}else{b[p>>1]=0;k=o}while(0);q=q+1|0;l=l+4|0;f=p+2|0;if((q|0)>=(x|0))break;else{p=f;o=k}}}w=w+1|0;if((w|0)>=(y|0)){n=k;A=52;break a}else{l=l+r|0;f=f+4|0}}Me(3,3904,z);k=-1}else{n=0;A=52}while(0);if((A|0)==52){a=j+12|0;if((n|0)<1)l=1;else{f=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(f|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((f|0)<(n|0)){f=f+1|0;m=m+4|0}else break}}e=j+8|0;k=l+-1|0;c[e>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[e>>2]|0))}if((n|0)>0){a=0;do{m=(c[j+1179664+(a<<2)>>2]|0)+-1|0;f=a*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(f<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(f+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(f+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(f+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(f+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(f+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(f+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;a=a+1|0}while((a|0)<(n|0))}if((c[e>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[e>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function Oc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0;D=i;i=i+16|0;z=D;B=(e|0)/2|0;C=(f|0)/2|0;n=c[j>>2]|0;y=C+-1|0;if((e|0)>1){k=0;l=n;m=n+(($(y,B)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(B|0))break;else{l=l+2|0;m=m+2|0}}}x=B+-1|0;if((f|0)>1){k=0;l=n;m=n+(x<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(C|0))break;else{l=l+(B<<1)|0;m=m+(B<<1)|0}}}m=j+1179664|0;u=0-B|0;s=1-B|0;t=~B;r=(e<<1)+8|0;a:do if((y|0)>1){v=(x|0)>1;w=1;l=a+((e<<2)+4)|0;f=n+(B+1<<1)|0;k=0;b:while(1){if(v){q=1;p=f;o=k;while(1){do if((d[l>>0]|0|0)>(g|0)){k=b[p+(u<<1)>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}a=b[p+(s<<1)>>1]|0;e=a<<16>>16;k=b[p+(t<<1)>>1]|0;n=k<<16>>16;f=k<<16>>16>0;if(a<<16>>16<=0){if(f){b[p>>1]=k;k=n*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-3<<2)|0;if((c[f>>2]|0)<(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=b[p+-2>>1]|0;if(k<<16>>16>0){b[p>>1]=k;k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(q|0)){k=o;break}c[k>>2]=q;k=o;break}else{k=o+1|0;if((o|0)>32767)break b;b[p>>1]=k;c[j+1179664+(o<<2)>>2]=k<<16>>16;o=o*7|0;c[j+1310736+(o<<2)>>2]=1;c[j+1310736+(o+1<<2)>>2]=q;c[j+1310736+(o+2<<2)>>2]=w;c[j+1310736+(o+3<<2)>>2]=q;c[j+1310736+(o+4<<2)>>2]=q;c[j+1310736+(o+5<<2)>>2]=w;c[j+1310736+(o+6<<2)>>2]=w;break}}if(f){k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+(n+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;n=j+1310736+(k+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}f=b[p+-2>>1]|0;if(f<<16>>16<=0){b[p>>1]=a;k=e*7|0;f=j+1310736+(k+-7<<2)|0;c[f>>2]=(c[f>>2]|0)+1;f=j+1310736+(k+-6<<2)|0;c[f>>2]=(c[f>>2]|0)+q;f=j+1310736+(k+-5<<2)|0;c[f>>2]=(c[f>>2]|0)+w;f=j+1310736+(k+-4<<2)|0;if((c[f>>2]|0)>(q|0))c[f>>2]=q;c[j+1310736+(k+-1<<2)>>2]=w;k=o;break}k=c[j+1179664+(e+-1<<2)>>2]|0;e=c[j+1179664+((f<<16>>16)+-1<<2)>>2]|0;if((k|0)>(e|0)){b[p>>1]=e;if((o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=e;f=f+1|0;if((f|0)>=(o|0)){k=e;break}else a=a+4|0}}else k=e}else{b[p>>1]=k;if((k|0)<(e|0)&(o|0)>0){f=0;a=m;while(1){if((c[a>>2]|0)==(e|0))c[a>>2]=k;f=f+1|0;if((f|0)>=(o|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;n=j+1310736+(k+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=j+1310736+(k+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+q;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=o}else{b[p>>1]=0;k=o}while(0);q=q+1|0;l=l+4|0;f=p+2|0;if((q|0)>=(x|0))break;else{p=f;o=k}}}w=w+1|0;if((w|0)>=(y|0)){n=k;A=52;break a}else{l=l+r|0;f=f+4|0}}Me(3,3904,z);k=-1}else{n=0;A=52}while(0);if((A|0)==52){a=j+12|0;if((n|0)<1)l=1;else{f=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(f|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((f|0)<(n|0)){f=f+1|0;m=m+4|0}else break}}e=j+8|0;k=l+-1|0;c[e>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{A=k<<2;c[j+131084+(A<<2)>>2]=B;c[j+131084+((A|1)<<2)>>2]=0;c[j+131084+((A|2)<<2)>>2]=C;c[j+131084+((A|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[e>>2]|0))}if((n|0)>0){a=0;do{m=(c[j+1179664+(a<<2)>>2]|0)+-1|0;f=a*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(f<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(f+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(f+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(f+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(f+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(f+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(f+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;a=a+1|0}while((a|0)<(n|0))}if((c[e>>2]|0)>0){k=0;do{B=j+12+(k<<2)|0;C=k<<1;A=j+655376+(C<<3)|0;h[A>>3]=+h[A>>3]/+(c[B>>2]|0);C=j+655376+((C|1)<<3)|0;h[C>>3]=+h[C>>3]/+(c[B>>2]|0);k=k+1|0}while((k|0)<(c[e>>2]|0));k=0}else k=0}else k=0}i=D;return k|0}function Pc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k*3|0)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){do if(((d[g+1>>0]|0)+(d[g>>0]|0)+(d[g+2>>0]|0)|0)>(y|0)){k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}else{b[q>>1]=0;k=p}while(0);r=r+1|0;g=g+3|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+6|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Qc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<1)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){n=d[g>>0]|0;o=d[g+1>>0]|0;do if(((n&248)+10+(n<<5&224)+(o>>>3&28)+(o<<3&248)|0)>(y|0)){k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}else{b[q>>1]=0;k=p}while(0);r=r+1|0;g=g+2|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+4|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Rc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<2)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){do if(((d[g+1>>0]|0)+(d[g>>0]|0)+(d[g+2>>0]|0)|0)>(y|0)){k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}else{b[q>>1]=0;k=p}while(0);r=r+1|0;g=g+4|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+8|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Sc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<1)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){o=d[g>>0]|0;do if(((o&240)+24+(o<<4&240)+((d[g+1>>0]|0)&240)|0)>(y|0)){k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}else{b[q>>1]=0;k=p}while(0);r=r+1|0;g=g+2|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+4|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Tc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<1)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){n=d[g>>0]|0;o=d[g+1>>0]|0;do if(((n&248)+12+(n<<5&224)+(o>>>3&24)+(o<<2&248)|0)>(y|0)){k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}else{b[q>>1]=0;k=p}while(0);r=r+1|0;g=g+2|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+4|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Uc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=g*3|0;x=e+-1|0;if((f|0)>0){k=0;g=n;l=n+(x<<1)|0;while(1){b[l>>1]=0;b[g>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{g=g+(e<<1)|0;l=l+(e<<1)|0}}}l=j+1179664|0;k=e+1|0;u=0-e|0;s=1-e|0;t=~e;a:do if((z|0)>1){v=(x|0)>1;w=1;g=a+(k<<2)|0;m=n+(k<<1)|0;k=0;b:while(1){if(v){r=1;q=m;p=k;while(1){do if(((d[g+2>>0]|0)+(d[g+1>>0]|0)+(d[g+3>>0]|0)|0)>(y|0)){k=b[q+(u<<1)>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}a=b[q+(s<<1)>>1]|0;n=a<<16>>16;k=b[q+(t<<1)>>1]|0;o=k<<16>>16;m=k<<16>>16>0;if(a<<16>>16<=0){if(m){b[q>>1]=k;k=o*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-3<<2)|0;if((c[m>>2]|0)<(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=b[q+-2>>1]|0;if(k<<16>>16>0){b[q>>1]=k;k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(r|0)){k=p;break}c[k>>2]=r;k=p;break}else{k=p+1|0;if((p|0)>32767)break b;b[q>>1]=k;c[j+1179664+(p<<2)>>2]=k<<16>>16;p=p*7|0;c[j+1310736+(p<<2)>>2]=1;c[j+1310736+(p+1<<2)>>2]=r;c[j+1310736+(p+2<<2)>>2]=w;c[j+1310736+(p+3<<2)>>2]=r;c[j+1310736+(p+4<<2)>>2]=r;c[j+1310736+(p+5<<2)>>2]=w;c[j+1310736+(p+6<<2)>>2]=w;break}}if(m){k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+(o+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=j+1310736+(k+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+w;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}m=b[q+-2>>1]|0;if(m<<16>>16<=0){b[q>>1]=a;k=n*7|0;m=j+1310736+(k+-7<<2)|0;c[m>>2]=(c[m>>2]|0)+1;m=j+1310736+(k+-6<<2)|0;c[m>>2]=(c[m>>2]|0)+r;m=j+1310736+(k+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+w;m=j+1310736+(k+-4<<2)|0;if((c[m>>2]|0)>(r|0))c[m>>2]=r;c[j+1310736+(k+-1<<2)>>2]=w;k=p;break}k=c[j+1179664+(n+-1<<2)>>2]|0;n=c[j+1179664+((m<<16>>16)+-1<<2)>>2]|0;if((k|0)>(n|0)){b[q>>1]=n;if((p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(k|0))c[a>>2]=n;m=m+1|0;if((m|0)>=(p|0)){k=n;break}else a=a+4|0}}else k=n}else{b[q>>1]=k;if((k|0)<(n|0)&(p|0)>0){m=0;a=l;while(1){if((c[a>>2]|0)==(n|0))c[a>>2]=k;m=m+1|0;if((m|0)>=(p|0))break;else a=a+4|0}}}k=(k<<16>>16)*7|0;o=j+1310736+(k+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=j+1310736+(k+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+w;k=p}else{b[q>>1]=0;k=p}while(0);r=r+1|0;g=g+4|0;m=q+2|0;if((r|0)>=(x|0))break;else{q=m;p=k}}}w=w+1|0;if((w|0)>=(z|0)){o=k;B=52;break a}else{g=g+8|0;m=m+4|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){a=j+12|0;if((o|0)<1)g=1;else{m=1;g=1;while(1){k=c[l>>2]|0;if((k|0)==(m|0)){k=g;g=g+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[l>>2]=k;if((m|0)<(o|0)){m=m+1|0;l=l+4|0}else break}}n=j+8|0;k=g+-1|0;c[n>>2]=k;if(k){ek(a|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((g|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[n>>2]|0))}if((o|0)>0){a=0;do{l=(c[j+1179664+(a<<2)>>2]|0)+-1|0;m=a*7|0;k=j+12+(l<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(m<<2)>>2]|0);k=l<<1;g=j+655376+(k<<3)|0;h[g>>3]=+h[g>>3]+ +(c[j+1310736+(m+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(m+2<<2)>>2]|0);l=l<<2;k=j+131084+(l<<2)|0;g=c[j+1310736+(m+3<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;k=j+131084+((l|1)<<2)|0;g=c[j+1310736+(m+4<<2)>>2]|0;if((c[k>>2]|0)<(g|0))c[k>>2]=g;k=j+131084+((l|2)<<2)|0;g=c[j+1310736+(m+5<<2)>>2]|0;if((c[k>>2]|0)>(g|0))c[k>>2]=g;g=j+131084+((l|3)<<2)|0;k=c[j+1310736+(m+6<<2)>>2]|0;if((c[g>>2]|0)<(k|0))c[g>>2]=k;a=a+1|0}while((a|0)<(o|0))}if((c[n>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[n>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Vc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=e+-1|0;if((f|0)>0){k=0;l=n;m=n+(y<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{l=l+(e<<1)|0;m=m+(e<<1)|0}}}m=j+1179664|0;k=e+1|0;v=0-e|0;t=1-e|0;u=~e;a:do if((z|0)>1){w=(y|0)>1;x=1;l=a+k|0;a=n+(k<<1)|0;k=0;b:while(1){if(w){s=1;r=a;q=k;while(1){do if((d[l>>0]|0|0)>(g|0)){k=b[r+(v<<1)>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}n=b[r+(t<<1)>>1]|0;o=n<<16>>16;k=b[r+(u<<1)>>1]|0;p=k<<16>>16;a=k<<16>>16>0;if(n<<16>>16<=0){if(a){b[r>>1]=k;k=p*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-3<<2)|0;if((c[a>>2]|0)<(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(s|0)){k=q;break}c[k>>2]=s;k=q;break}else{k=q+1|0;if((q|0)>32767)break b;b[r>>1]=k;c[j+1179664+(q<<2)>>2]=k<<16>>16;q=q*7|0;c[j+1310736+(q<<2)>>2]=1;c[j+1310736+(q+1<<2)>>2]=s;c[j+1310736+(q+2<<2)>>2]=x;c[j+1310736+(q+3<<2)>>2]=s;c[j+1310736+(q+4<<2)>>2]=s;c[j+1310736+(q+5<<2)>>2]=x;c[j+1310736+(q+6<<2)>>2]=x;break}}if(a){k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+(p+-1<<2)>>2]|0;if((k|0)>(o|0)){b[r>>1]=o;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}else{b[r>>1]=k;if((k|0)<(o|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16<=0){b[r>>1]=n;k=o*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-4<<2)|0;if((c[a>>2]|0)>(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}o=c[j+1179664+(o+-1<<2)>>2]|0;k=c[j+1179664+((k<<16>>16)+-1<<2)>>2]|0;if((o|0)>(k|0)){b[r>>1]=k;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}else{b[r>>1]=o;if((o|0)<(k|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+x;k=q}else{b[r>>1]=0;k=q}while(0);s=s+1|0;l=l+1|0;a=r+2|0;if((s|0)>=(y|0))break;else{r=a;q=k}}}x=x+1|0;if((x|0)>=(z|0)){p=k;B=52;break a}else{l=l+2|0;a=a+4|0}}Me(3,3904,A);k=-1}else{p=0;B=52}while(0);if((B|0)==52){n=j+12|0;if((p|0)<1)l=1;else{a=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(a|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((a|0)<(p|0)){a=a+1|0;m=m+4|0}else break}}o=j+8|0;k=l+-1|0;c[o>>2]=k;if(k){ek(n|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[o>>2]|0))}if((p|0)>0){n=0;do{m=(c[j+1179664+(n<<2)>>2]|0)+-1|0;a=n*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(a<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(a+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(a+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(a+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(a+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(a+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(a+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;n=n+1|0}while((n|0)<(p|0))}if((c[o>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[o>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Wc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=e+-1|0;if((f|0)>0){k=0;l=n;m=n+(y<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{l=l+(e<<1)|0;m=m+(e<<1)|0}}}m=j+1179664|0;k=e+1|0;v=0-e|0;t=1-e|0;u=~e;a:do if((z|0)>1){w=(y|0)>1;x=1;l=a+(k<<1)|0;a=n+(k<<1)|0;k=0;b:while(1){if(w){s=1;r=a;q=k;while(1){do if((d[l+1>>0]|0|0)>(g|0)){k=b[r+(v<<1)>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}n=b[r+(t<<1)>>1]|0;o=n<<16>>16;k=b[r+(u<<1)>>1]|0;p=k<<16>>16;a=k<<16>>16>0;if(n<<16>>16<=0){if(a){b[r>>1]=k;k=p*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-3<<2)|0;if((c[a>>2]|0)<(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(s|0)){k=q;break}c[k>>2]=s;k=q;break}else{k=q+1|0;if((q|0)>32767)break b;b[r>>1]=k;c[j+1179664+(q<<2)>>2]=k<<16>>16;q=q*7|0;c[j+1310736+(q<<2)>>2]=1;c[j+1310736+(q+1<<2)>>2]=s;c[j+1310736+(q+2<<2)>>2]=x;c[j+1310736+(q+3<<2)>>2]=s;c[j+1310736+(q+4<<2)>>2]=s;c[j+1310736+(q+5<<2)>>2]=x;c[j+1310736+(q+6<<2)>>2]=x;break}}if(a){k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+(p+-1<<2)>>2]|0;if((k|0)>(o|0)){b[r>>1]=o;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}else{b[r>>1]=k;if((k|0)<(o|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}a=b[r+-2>>1]|0;if(a<<16>>16<=0){b[r>>1]=n;k=o*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-4<<2)|0;if((c[a>>2]|0)>(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+((a<<16>>16)+-1<<2)>>2]|0;if((k|0)>(o|0)){b[r>>1]=o;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}else{b[r>>1]=k;if((k|0)<(o|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+x;k=q}else{b[r>>1]=0;k=q}while(0);s=s+1|0;l=l+2|0;a=r+2|0;if((s|0)>=(y|0))break;else{r=a;q=k}}}x=x+1|0;if((x|0)>=(z|0)){p=k;B=52;break a}else{l=l+4|0;a=a+4|0}}Me(3,3904,A);k=-1}else{p=0;B=52}while(0);if((B|0)==52){n=j+12|0;if((p|0)<1)l=1;else{a=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(a|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((a|0)<(p|0)){a=a+1|0;m=m+4|0}else break}}o=j+8|0;k=l+-1|0;c[o>>2]=k;if(k){ek(n|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[o>>2]|0))}if((p|0)>0){n=0;do{m=(c[j+1179664+(n<<2)>>2]|0)+-1|0;a=n*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(a<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(a+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(a+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(a+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(a+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(a+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(a+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;n=n+1|0}while((n|0)<(p|0))}if((c[o>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[o>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Xc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=e+-1|0;if((f|0)>0){k=0;l=n;m=n+(y<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{l=l+(e<<1)|0;m=m+(e<<1)|0}}}m=j+1179664|0;k=e+1|0;v=0-e|0;t=1-e|0;u=~e;a:do if((z|0)>1){w=(y|0)>1;x=1;l=a+(k<<1)|0;a=n+(k<<1)|0;k=0;b:while(1){if(w){s=1;r=a;q=k;while(1){do if((d[l>>0]|0|0)>(g|0)){k=b[r+(v<<1)>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}n=b[r+(t<<1)>>1]|0;o=n<<16>>16;k=b[r+(u<<1)>>1]|0;p=k<<16>>16;a=k<<16>>16>0;if(n<<16>>16<=0){if(a){b[r>>1]=k;k=p*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-3<<2)|0;if((c[a>>2]|0)<(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16>0){b[r>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(s|0)){k=q;break}c[k>>2]=s;k=q;break}else{k=q+1|0;if((q|0)>32767)break b;b[r>>1]=k;c[j+1179664+(q<<2)>>2]=k<<16>>16;q=q*7|0;c[j+1310736+(q<<2)>>2]=1;c[j+1310736+(q+1<<2)>>2]=s;c[j+1310736+(q+2<<2)>>2]=x;c[j+1310736+(q+3<<2)>>2]=s;c[j+1310736+(q+4<<2)>>2]=s;c[j+1310736+(q+5<<2)>>2]=x;c[j+1310736+(q+6<<2)>>2]=x;break}}if(a){k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+(p+-1<<2)>>2]|0;if((k|0)>(o|0)){b[r>>1]=o;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}else{b[r>>1]=k;if((k|0)<(o|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[r+-2>>1]|0;if(k<<16>>16<=0){b[r>>1]=n;k=o*7|0;a=j+1310736+(k+-7<<2)|0;c[a>>2]=(c[a>>2]|0)+1;a=j+1310736+(k+-6<<2)|0;c[a>>2]=(c[a>>2]|0)+s;a=j+1310736+(k+-5<<2)|0;c[a>>2]=(c[a>>2]|0)+x;a=j+1310736+(k+-4<<2)|0;if((c[a>>2]|0)>(s|0))c[a>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}o=c[j+1179664+(o+-1<<2)>>2]|0;k=c[j+1179664+((k<<16>>16)+-1<<2)>>2]|0;if((o|0)>(k|0)){b[r>>1]=k;if((q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(o|0))c[n>>2]=k;a=a+1|0;if((a|0)>=(q|0))break;else n=n+4|0}}}else{b[r>>1]=o;if((o|0)<(k|0)&(q|0)>0){a=0;n=m;while(1){if((c[n>>2]|0)==(k|0))c[n>>2]=o;a=a+1|0;if((a|0)>=(q|0)){k=o;break}else n=n+4|0}}else k=o}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+x;k=q}else{b[r>>1]=0;k=q}while(0);s=s+1|0;l=l+2|0;a=r+2|0;if((s|0)>=(y|0))break;else{r=a;q=k}}}x=x+1|0;if((x|0)>=(z|0)){p=k;B=52;break a}else{l=l+4|0;a=a+4|0}}Me(3,3904,A);k=-1}else{p=0;B=52}while(0);if((B|0)==52){n=j+12|0;if((p|0)<1)l=1;else{a=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(a|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((a|0)<(p|0)){a=a+1|0;m=m+4|0}else break}}o=j+8|0;k=l+-1|0;c[o>>2]=k;if(k){ek(n|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[o>>2]|0))}if((p|0)>0){n=0;do{m=(c[j+1179664+(n<<2)>>2]|0)+-1|0;a=n*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(a<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(a+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(a+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(a+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(a+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(a+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(a+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;n=n+1|0}while((n|0)<(p|0))}if((c[o>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[o>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Yc(a,e,f,g,j){a=a|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0;C=i;i=i+16|0;A=C;n=c[j>>2]|0;z=f+-1|0;if((e|0)>0){k=0;l=n;m=n+(($(z,e)|0)<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(e|0))break;else{l=l+2|0;m=m+2|0}}}y=e+-1|0;if((f|0)>0){k=0;l=n;m=n+(y<<1)|0;while(1){b[m>>1]=0;b[l>>1]=0;k=k+1|0;if((k|0)>=(f|0))break;else{l=l+(e<<1)|0;m=m+(e<<1)|0}}}m=j+1179664|0;k=e+1|0;v=0-e|0;t=1-e|0;u=~e;a:do if((z|0)>1){w=(y|0)>1;x=1;l=a+k|0;a=n+(k<<1)|0;n=g+k|0;k=0;b:while(1){if(w){s=1;r=l;q=k;while(1){do if((d[r>>0]|0)>(d[n>>0]|0)){k=b[a+(v<<1)>>1]|0;if(k<<16>>16>0){b[a>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}g=b[a+(t<<1)>>1]|0;o=g<<16>>16;k=b[a+(u<<1)>>1]|0;p=k<<16>>16;l=k<<16>>16>0;if(g<<16>>16<=0){if(l){b[a>>1]=k;k=p*7|0;l=j+1310736+(k+-7<<2)|0;c[l>>2]=(c[l>>2]|0)+1;l=j+1310736+(k+-6<<2)|0;c[l>>2]=(c[l>>2]|0)+s;l=j+1310736+(k+-5<<2)|0;c[l>>2]=(c[l>>2]|0)+x;l=j+1310736+(k+-3<<2)|0;if((c[l>>2]|0)<(s|0))c[l>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[a+-2>>1]|0;if(k<<16>>16>0){b[a>>1]=k;k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;k=j+1310736+(k+-3<<2)|0;if((c[k>>2]|0)>=(s|0)){k=q;break}c[k>>2]=s;k=q;break}else{k=q+1|0;if((q|0)>32767)break b;b[a>>1]=k;c[j+1179664+(q<<2)>>2]=k<<16>>16;q=q*7|0;c[j+1310736+(q<<2)>>2]=1;c[j+1310736+(q+1<<2)>>2]=s;c[j+1310736+(q+2<<2)>>2]=x;c[j+1310736+(q+3<<2)>>2]=s;c[j+1310736+(q+4<<2)>>2]=s;c[j+1310736+(q+5<<2)>>2]=x;c[j+1310736+(q+6<<2)>>2]=x;break}}if(l){k=c[j+1179664+(o+-1<<2)>>2]|0;o=c[j+1179664+(p+-1<<2)>>2]|0;if((k|0)>(o|0)){b[a>>1]=o;if((q|0)>0){l=0;g=m;while(1){if((c[g>>2]|0)==(k|0))c[g>>2]=o;l=l+1|0;if((l|0)>=(q|0)){k=o;break}else g=g+4|0}}else k=o}else{b[a>>1]=k;if((k|0)<(o|0)&(q|0)>0){l=0;g=m;while(1){if((c[g>>2]|0)==(o|0))c[g>>2]=k;l=l+1|0;if((l|0)>=(q|0))break;else g=g+4|0}}}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;p=j+1310736+(k+-5<<2)|0;c[p>>2]=(c[p>>2]|0)+x;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}k=b[a+-2>>1]|0;if(k<<16>>16<=0){b[a>>1]=g;k=o*7|0;l=j+1310736+(k+-7<<2)|0;c[l>>2]=(c[l>>2]|0)+1;l=j+1310736+(k+-6<<2)|0;c[l>>2]=(c[l>>2]|0)+s;l=j+1310736+(k+-5<<2)|0;c[l>>2]=(c[l>>2]|0)+x;l=j+1310736+(k+-4<<2)|0;if((c[l>>2]|0)>(s|0))c[l>>2]=s;c[j+1310736+(k+-1<<2)>>2]=x;k=q;break}o=c[j+1179664+(o+-1<<2)>>2]|0;k=c[j+1179664+((k<<16>>16)+-1<<2)>>2]|0;if((o|0)>(k|0)){b[a>>1]=k;if((q|0)>0){l=0;g=m;while(1){if((c[g>>2]|0)==(o|0))c[g>>2]=k;l=l+1|0;if((l|0)>=(q|0))break;else g=g+4|0}}}else{b[a>>1]=o;if((o|0)<(k|0)&(q|0)>0){l=0;g=m;while(1){if((c[g>>2]|0)==(k|0))c[g>>2]=o;l=l+1|0;if((l|0)>=(q|0)){k=o;break}else g=g+4|0}}else k=o}k=(k<<16>>16)*7|0;p=j+1310736+(k+-7<<2)|0;c[p>>2]=(c[p>>2]|0)+1;p=j+1310736+(k+-6<<2)|0;c[p>>2]=(c[p>>2]|0)+s;k=j+1310736+(k+-5<<2)|0;c[k>>2]=(c[k>>2]|0)+x;k=q}else{b[a>>1]=0;k=q}while(0);s=s+1|0;l=r+1|0;n=n+1|0;a=a+2|0;if((s|0)>=(y|0))break;else{r=l;q=k}}}x=x+1|0;if((x|0)>=(z|0)){o=k;B=52;break a}else{l=l+2|0;a=a+4|0;n=n+2|0}}Me(3,3904,A);k=-1}else{o=0;B=52}while(0);if((B|0)==52){n=j+12|0;if((o|0)<1)l=1;else{a=1;l=1;while(1){k=c[m>>2]|0;if((k|0)==(a|0)){k=l;l=l+1|0}else k=c[j+1179664+(k+-1<<2)>>2]|0;c[m>>2]=k;if((a|0)<(o|0)){a=a+1|0;m=m+4|0}else break}}g=j+8|0;k=l+-1|0;c[g>>2]=k;if(k){ek(n|0,0,k<<2|0)|0;ek(j+655376|0,0,k<<4|0)|0;if((l|0)>1){k=0;do{B=k<<2;c[j+131084+(B<<2)>>2]=e;c[j+131084+((B|1)<<2)>>2]=0;c[j+131084+((B|2)<<2)>>2]=f;c[j+131084+((B|3)<<2)>>2]=0;k=k+1|0}while((k|0)<(c[g>>2]|0))}if((o|0)>0){n=0;do{m=(c[j+1179664+(n<<2)>>2]|0)+-1|0;a=n*7|0;k=j+12+(m<<2)|0;c[k>>2]=(c[k>>2]|0)+(c[j+1310736+(a<<2)>>2]|0);k=m<<1;l=j+655376+(k<<3)|0;h[l>>3]=+h[l>>3]+ +(c[j+1310736+(a+1<<2)>>2]|0);k=j+655376+((k|1)<<3)|0;h[k>>3]=+h[k>>3]+ +(c[j+1310736+(a+2<<2)>>2]|0);m=m<<2;k=j+131084+(m<<2)|0;l=c[j+1310736+(a+3<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;k=j+131084+((m|1)<<2)|0;l=c[j+1310736+(a+4<<2)>>2]|0;if((c[k>>2]|0)<(l|0))c[k>>2]=l;k=j+131084+((m|2)<<2)|0;l=c[j+1310736+(a+5<<2)>>2]|0;if((c[k>>2]|0)>(l|0))c[k>>2]=l;l=j+131084+((m|3)<<2)|0;k=c[j+1310736+(a+6<<2)>>2]|0;if((c[l>>2]|0)<(k|0))c[l>>2]=k;n=n+1|0}while((n|0)<(o|0))}if((c[g>>2]|0)>0){k=0;do{e=j+12+(k<<2)|0;f=k<<1;B=j+655376+(f<<3)|0;h[B>>3]=+h[B>>3]/+(c[e>>2]|0);f=j+655376+((f|1)<<3)|0;h[f>>3]=+h[f>>3]/+(c[e>>2]|0);k=k+1|0}while((k|0)<(c[g>>2]|0));k=0}else k=0}else k=0}i=C;return k|0}function Zc(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f*3|0)+12|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f*6|0)+6)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){do if(((d[q+1>>0]|0)+(d[q>>0]|0)+(d[q+2>>0]|0)|0)>(y|0)){b[g>>1]=0;a[l>>0]=0;j=p}else{a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}while(0);r=r+1|0;n=q+6|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function _c(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<1)+8|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<2)+4)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){f=d[q>>0]|0;o=d[q+1>>0]|0;do if(((f&248)+10+(f<<5&224)+(o>>>3&28)+(o<<3&248)|0)>(y|0)){b[g>>1]=0;a[l>>0]=0;j=p}else{a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}while(0);r=r+1|0;n=q+4|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function $c(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<2)+16|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<3)+8)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){do if(((d[q+1>>0]|0)+(d[q>>0]|0)+(d[q+2>>0]|0)|0)>(y|0)){b[g>>1]=0;a[l>>0]=0;j=p}else{a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}while(0);r=r+1|0;n=q+8|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function ad(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<1)+8|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<2)+4)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){o=d[q>>0]|0;do if(((o&240)+24+(o<<4&240)+((d[q+1>>0]|0)&240)|0)>(y|0)){b[g>>1]=0;a[l>>0]=0;j=p}else{a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}while(0);r=r+1|0;n=q+4|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function bd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<1)+8|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<2)+4)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){f=d[q>>0]|0;o=d[q+1>>0]|0;do if(((f&248)+12+(f<<5&224)+(o>>>3&24)+(o<<2&248)|0)>(y|0)){b[g>>1]=0;a[l>>0]=0;j=p}else{a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}while(0);r=r+1|0;n=q+4|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}function cd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;B=F;D=(f|0)/2|0;E=(g|0)/2|0;o=c[k>>2]|0;A=E+-1|0;if((f|0)>1){l=0;m=o;n=o+(($(A,D)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(D|0))break;else{m=m+2|0;n=n+2|0}}}y=j*3|0;z=D+-1|0;if((g|0)>1){l=0;j=o;m=o+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(E|0))break;else{j=j+(D<<1)|0;m=m+(D<<1)|0}}}m=k+1179664|0;j=D+1|0;v=0-D|0;t=1-D|0;u=~D;s=(f<<2)+16|0;a:do if((A|0)>1){w=(z|0)>1;l=(c[k+4>>2]|0)+j|0;x=1;n=e+((f<<3)+8)|0;g=o+(j<<1)|0;j=0;b:while(1){if(w){r=1;q=n;p=j;while(1){do if(((d[q+2>>0]|0)+(d[q+1>>0]|0)+(d[q+3>>0]|0)|0)>(y|0)){b[g>>1]=0;a[l>>0]=0;j=p}else{a[l>>0]=-1;j=b[g+(v<<1)>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}e=b[g+(t<<1)>>1]|0;f=e<<16>>16;j=b[g+(u<<1)>>1]|0;o=j<<16>>16;n=j<<16>>16>0;if(e<<16>>16<=0){if(n){b[g>>1]=j;j=o*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=b[g+-2>>1]|0;if(j<<16>>16>0){b[g>>1]=j;j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(r|0)){j=p;break}c[j>>2]=r;j=p;break}else{j=p+1|0;if((p|0)>32767)break b;b[g>>1]=j;c[k+1179664+(p<<2)>>2]=j<<16>>16;p=p*7|0;c[k+1310736+(p<<2)>>2]=1;c[k+1310736+(p+1<<2)>>2]=r;c[k+1310736+(p+2<<2)>>2]=x;c[k+1310736+(p+3<<2)>>2]=r;c[k+1310736+(p+4<<2)>>2]=r;c[k+1310736+(p+5<<2)>>2]=x;c[k+1310736+(p+6<<2)>>2]=x;break}}if(n){j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+(o+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;o=k+1310736+(j+-5<<2)|0;c[o>>2]=(c[o>>2]|0)+x;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}n=b[g+-2>>1]|0;if(n<<16>>16<=0){b[g>>1]=e;j=f*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+r;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+x;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(r|0))c[n>>2]=r;c[k+1310736+(j+-1<<2)>>2]=x;j=p;break}j=c[k+1179664+(f+-1<<2)>>2]|0;f=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(f|0)){b[g>>1]=f;if((p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(j|0))c[e>>2]=f;n=n+1|0;if((n|0)>=(p|0)){j=f;break}else e=e+4|0}}else j=f}else{b[g>>1]=j;if((j|0)<(f|0)&(p|0)>0){n=0;e=m;while(1){if((c[e>>2]|0)==(f|0))c[e>>2]=j;n=n+1|0;if((n|0)>=(p|0))break;else e=e+4|0}}}j=(j<<16>>16)*7|0;o=k+1310736+(j+-7<<2)|0;c[o>>2]=(c[o>>2]|0)+1;o=k+1310736+(j+-6<<2)|0;c[o>>2]=(c[o>>2]|0)+r;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+x;j=p}while(0);r=r+1|0;n=q+8|0;g=g+2|0;l=l+1|0;if((r|0)>=(z|0))break;else{q=n;p=j}}}x=x+1|0;if((x|0)>=(A|0)){f=j;C=52;break a}else{l=l+2|0;n=n+s|0;g=g+4|0}}Me(3,3904,B);l=-1}else{f=0;C=52}while(0);if((C|0)==52){g=k+12|0;if((f|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(f|0)){n=n+1|0;m=m+4|0}else break}}e=k+8|0;l=j+-1|0;c[e>>2]=l;if(l){ek(g|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{C=l<<2;c[k+131084+(C<<2)>>2]=D;c[k+131084+((C|1)<<2)>>2]=0;c[k+131084+((C|2)<<2)>>2]=E;c[k+131084+((C|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[e>>2]|0))}if((f|0)>0){g=0;do{m=(c[k+1179664+(g<<2)>>2]|0)+-1|0;n=g*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;g=g+1|0}while((g|0)<(f|0))}if((c[e>>2]|0)>0){l=0;do{D=k+12+(l<<2)|0;E=l<<1;C=k+655376+(E<<3)|0;h[C>>3]=+h[C>>3]/+(c[D>>2]|0);E=k+655376+((E|1)<<3)|0;h[E>>3]=+h[E>>3]/+(c[D>>2]|0);l=l+1|0}while((l|0)<(c[e>>2]|0));l=0}else l=0}else l=0}i=F;return l|0}
function sh(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;if((b|0)!=1){if(b+-1&b)b=_j(b)|0}else b=2;f=c[a+4>>2]|0;if(b>>>0<=f>>>0){if(b>>>0<f>>>0){if(f>>>0>2)e=(f+-1&f|0)==0;else e=0;d=~~+_(+(+((c[a+12>>2]|0)>>>0)/+g[a+16>>2]))>>>0;if(e)d=1<<32-(ba(d+-1|0)|0);else d=_j(d)|0;b=b>>>0<d>>>0?d:b;if(b>>>0<f>>>0)th(a,b)}}else th(a,b);return}function th(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0;e=a+4|0;a:do if(b){m=Kh(b<<2)|0;d=c[a>>2]|0;c[a>>2]=m;if(d)Lh(d);c[e>>2]=b;if(b){d=0;do{c[(c[a>>2]|0)+(d<<2)>>2]=0;d=d+1|0}while((d|0)!=(b|0))}e=a+8|0;f=c[e>>2]|0;if(f){d=c[f+4>>2]|0;l=b+-1|0;m=(l&b|0)==0;if(m)h=d&l;else h=(d>>>0)%(b>>>0)|0;c[(c[a>>2]|0)+(h<<2)>>2]=e;d=c[f>>2]|0;if(d){g=f;e=f;while(1){k=e;b:while(1){while(1){e=c[d+4>>2]|0;if(m)j=e&l;else j=(e>>>0)%(b>>>0)|0;if((j|0)==(h|0)){e=d;break}e=(c[a>>2]|0)+(j<<2)|0;if(!(c[e>>2]|0)){h=j;f=d;break b}i=d+8|0;e=d;while(1){f=c[e>>2]|0;if(!f)break;if((c[i>>2]|0)==(c[f+8>>2]|0))e=f;else break}c[g>>2]=f;c[e>>2]=c[c[(c[a>>2]|0)+(j<<2)>>2]>>2];c[c[(c[a>>2]|0)+(j<<2)>>2]>>2]=d;d=c[k>>2]|0;if(!d)break a}d=c[e>>2]|0;if(!d)break a;else{g=e;k=e}}c[e>>2]=g;d=c[f>>2]|0;if(!d)break;else{g=f;e=f}}}}}else{d=c[a>>2]|0;c[a>>2]=0;if(d)Lh(d);c[e>>2]=0}while(0);return}function uh(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0,j=0;g=i;i=i+32|0;h=g+16|0;f=g+4|0;j=g;d=c[d>>2]|0;e=c[d>>2]|0;c[j>>2]=d;c[h>>2]=c[j>>2];vh(f,b,h);d=c[f>>2]|0;c[f>>2]=0;if(d){if(a[f+8>>0]|0)Fg(d+264|0);Lh(d)}i=g;return e|0}function vh(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0;o=c[e>>2]|0;l=c[d+4>>2]|0;e=c[o+4>>2]|0;m=l+-1|0;n=(m&l|0)==0;if(n)k=m&e;else k=(e>>>0)%(l>>>0)|0;g=(c[d>>2]|0)+(k<<2)|0;f=c[g>>2]|0;while(1){e=c[f>>2]|0;if((e|0)==(o|0)){j=f;break}else f=e}i=d+8|0;if((j|0)!=(i|0)){e=c[j+4>>2]|0;if(n)e=e&m;else e=(e>>>0)%(l>>>0)|0;if((e|0)==(k|0))g=o;else h=12}else h=12;do if((h|0)==12){e=c[o>>2]|0;if(e){e=c[e+4>>2]|0;if(n)e=e&m;else e=(e>>>0)%(l>>>0)|0;if((e|0)==(k|0)){g=o;break}}c[g>>2]=0;g=o}while(0);f=c[g>>2]|0;e=f;if(f){f=c[f+4>>2]|0;if(n)f=f&m;else f=(f>>>0)%(l>>>0)|0;if((f|0)!=(k|0)){c[(c[d>>2]|0)+(f<<2)>>2]=j;e=c[o>>2]|0}}c[j>>2]=e;c[g>>2]=0;d=d+12|0;c[d>>2]=(c[d>>2]|0)+-1;c[b>>2]=o;c[b+4>>2]=i;a[b+8>>0]=1;return}function wh(a,b,d){a=a|0;b=b|0;d=d|0;var e=0;e=Kh(408)|0;c[e+8>>2]=c[d>>2];ek(e+16|0,0,392)|0;h[e+248>>3]=.0001;h[e+256>>3]=1.0e3;d=e+264|0;c[d>>2]=0;c[d+4>>2]=0;c[d+8>>2]=0;c[d+12>>2]=0;c[a>>2]=e;a=a+4|0;c[a>>2]=b+8;c[a+4>>2]=257;return}function xh(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,h=0,i=0,j=0.0,k=0.0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0;m=c[e+8>>2]|0;s=e+4|0;c[s>>2]=m;r=d+4|0;l=c[r>>2]|0;q=(l|0)==0;a:do if(!q){n=l+-1|0;o=(n&l|0)==0;if(o)h=n&m;else h=(m>>>0)%(l>>>0)|0;f=c[(c[d>>2]|0)+(h<<2)>>2]|0;if(!f)p=12;else while(1){i=c[f>>2]|0;if(!i){p=12;break a}f=c[i+4>>2]|0;if(o)f=f&n;else f=(f>>>0)%(l>>>0)|0;if((f|0)!=(h|0)){p=12;break a}if((c[i+8>>2]|0)==(m|0)){f=0;e=i;break}else f=i}}else{h=0;p=12}while(0);if((p|0)==12){m=d+12|0;j=+(((c[m>>2]|0)+1|0)>>>0);k=+g[d+16>>2];do if(q|j>+(l>>>0)*k){if(l>>>0>2)f=(l+-1&l|0)==0;else f=0;i=(f&1|l<<1)^1;f=~~+_(+(j/k))>>>0;yh(d,i>>>0<f>>>0?f:i);i=c[r>>2]|0;f=c[s>>2]|0;h=i+-1|0;if(!(h&i)){l=i;h=h&f;break}else{l=i;h=(f>>>0)%(i>>>0)|0;break}}while(0);f=c[(c[d>>2]|0)+(h<<2)>>2]|0;if(!f){f=d+8|0;c[e>>2]=c[f>>2];c[f>>2]=e;c[(c[d>>2]|0)+(h<<2)>>2]=f;f=c[e>>2]|0;if(f){f=c[f+4>>2]|0;h=l+-1|0;if(!(h&l))f=f&h;else f=(f>>>0)%(l>>>0)|0;c[(c[d>>2]|0)+(f<<2)>>2]=e}}else{c[e>>2]=c[f>>2];c[f>>2]=e}c[m>>2]=(c[m>>2]|0)+1;f=1}c[b>>2]=e;a[b+4>>0]=f;return}function yh(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;if((b|0)!=1){if(b+-1&b)b=_j(b)|0}else b=2;f=c[a+4>>2]|0;if(b>>>0<=f>>>0){if(b>>>0<f>>>0){if(f>>>0>2)e=(f+-1&f|0)==0;else e=0;d=~~+_(+(+((c[a+12>>2]|0)>>>0)/+g[a+16>>2]))>>>0;if(e)d=1<<32-(ba(d+-1|0)|0);else d=_j(d)|0;b=b>>>0<d>>>0?d:b;if(b>>>0<f>>>0)zh(a,b)}}else zh(a,b);return}function zh(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0;e=a+4|0;a:do if(b){m=Kh(b<<2)|0;d=c[a>>2]|0;c[a>>2]=m;if(d)Lh(d);c[e>>2]=b;if(b){d=0;do{c[(c[a>>2]|0)+(d<<2)>>2]=0;d=d+1|0}while((d|0)!=(b|0))}e=a+8|0;f=c[e>>2]|0;if(f){d=c[f+4>>2]|0;l=b+-1|0;m=(l&b|0)==0;if(m)h=d&l;else h=(d>>>0)%(b>>>0)|0;c[(c[a>>2]|0)+(h<<2)>>2]=e;d=c[f>>2]|0;if(d){g=f;e=f;while(1){k=e;b:while(1){while(1){e=c[d+4>>2]|0;if(m)j=e&l;else j=(e>>>0)%(b>>>0)|0;if((j|0)==(h|0)){e=d;break}e=(c[a>>2]|0)+(j<<2)|0;if(!(c[e>>2]|0)){h=j;f=d;break b}i=d+8|0;e=d;while(1){f=c[e>>2]|0;if(!f)break;if((c[i>>2]|0)==(c[f+8>>2]|0))e=f;else break}c[g>>2]=f;c[e>>2]=c[c[(c[a>>2]|0)+(j<<2)>>2]>>2];c[c[(c[a>>2]|0)+(j<<2)>>2]>>2]=d;d=c[k>>2]|0;if(!d)break a}d=c[e>>2]|0;if(!d)break a;else{g=e;k=e}}c[e>>2]=g;d=c[f>>2]|0;if(!d)break;else{g=f;e=f}}}}}else{d=c[a>>2]|0;c[a>>2]=0;if(d)Lh(d);c[e>>2]=0}while(0);return}function Ah(a){a=a|0;return Aj(c[a+4>>2]|0)|0}function Bh(a){a=a|0;Ka(624,10917);Ya(632,10922,1,1,0);Ga(640,10927,1,-128,127);Ga(656,10932,1,-128,127);Ga(648,10944,1,0,255);Ga(664,10958,2,-32768,32767);Ga(672,10964,2,0,65535);Ga(680,10979,4,-2147483648,2147483647);Ga(688,10983,4,0,-1);Ga(696,10996,4,-2147483648,2147483647);Ga(704,11001,4,0,-1);kb(712,11015,4);kb(720,11021,8);sb(360,11028);sb(392,11040);bb(416,4,11073);db(440,11086);Aa(448,0,11102);Dh(11132);Eh(11169);Fh(11208);Gh(11239);Hh(11279);Ih(11308);Aa(456,4,11346);Aa(464,5,11376);Dh(11415);Eh(11447);Fh(11480);Gh(11513);Hh(11547);Ih(11580);Aa(472,6,11614);Aa(480,7,11645);Aa(488,7,11677);return}function Ch(){Bh(0);return}function Dh(a){a=a|0;Aa(536,0,a|0);return}function Eh(a){a=a|0;Aa(528,1,a|0);return}function Fh(a){a=a|0;Aa(520,2,a|0);return}function Gh(a){a=a|0;Aa(512,3,a|0);return}function Hh(a){a=a|0;Aa(504,4,a|0);return}function Ih(a){a=a|0;Aa(496,5,a|0);return}function Jh(a){a=a|0;Ia(12478,12501,303,12589)}function Kh(a){a=a|0;var b=0;b=(a|0)==0?1:a;a=Uj(b)|0;a:do if(!a){while(1){a=Ph()|0;if(!a)break;_b[a&0]();a=Uj(b)|0;if(a)break a}b=Wa(4)|0;c[b>>2]=2224;wb(b|0,544,1)}while(0);return a|0}function Lh(a){a=a|0;Vj(a);return}function Mh(a){a=a|0;return}function Nh(a){a=a|0;Lh(a);return}function Oh(a){a=a|0;return 12610}function Ph(){var a=0;a=c[559]|0;c[559]=a+0;return a|0}function Qh(a){a=a|0;return}function Rh(a){a=a|0;return}function Sh(a){a=a|0;return}function Th(a){a=a|0;return}function Uh(a){a=a|0;return}function Vh(a){a=a|0;Lh(a);return}function Wh(a){a=a|0;Lh(a);return}function Xh(a){a=a|0;Lh(a);return}function Yh(a){a=a|0;Lh(a);return}function Zh(a,b,c){a=a|0;b=b|0;c=c|0;return (a|0)==(b|0)|0}function _h(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0;h=i;i=i+64|0;g=h;if((a|0)!=(b|0))if((b|0)!=0?(f=ei(b,576,592,0)|0,(f|0)!=0):0){b=g;e=b+56|0;do{c[b>>2]=0;b=b+4|0}while((b|0)<(e|0));c[g>>2]=f;c[g+8>>2]=a;c[g+12>>2]=-1;c[g+48>>2]=1;dc[c[(c[f>>2]|0)+28>>2]&3](f,g,c[d>>2]|0,1);if((c[g+24>>2]|0)==1){c[d>>2]=c[g+16>>2];b=1}else b=0}else b=0;else b=1;i=h;return b|0}function $h(b,d,e,f){b=b|0;d=d|0;e=e|0;f=f|0;var g=0;b=d+16|0;g=c[b>>2]|0;do if(g){if((g|0)!=(e|0)){f=d+36|0;c[f>>2]=(c[f>>2]|0)+1;c[d+24>>2]=2;a[d+54>>0]=1;break}b=d+24|0;if((c[b>>2]|0)==2)c[b>>2]=f}else{c[b>>2]=e;c[d+24>>2]=f;c[d+36>>2]=1}while(0);return}function ai(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;if((a|0)==(c[b+8>>2]|0))$h(0,b,d,e);return}function bi(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;if((a|0)==(c[b+8>>2]|0))$h(0,b,d,e);else{a=c[a+8>>2]|0;dc[c[(c[a>>2]|0)+28>>2]&3](a,b,d,e)}return}function ci(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,g=0;g=c[a+4>>2]|0;f=g>>8;if(g&1)f=c[(c[d>>2]|0)+f>>2]|0;a=c[a>>2]|0;dc[c[(c[a>>2]|0)+28>>2]&3](a,b,d+f|0,(g&2|0)!=0?e:2);return}function di(b,d,e,f){b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0;a:do if((b|0)!=(c[d+8>>2]|0)){h=c[b+12>>2]|0;g=b+16+(h<<3)|0;ci(b+16|0,d,e,f);if((h|0)>1){h=d+54|0;b=b+24|0;do{ci(b,d,e,f);if(a[h>>0]|0)break a;b=b+8|0}while(b>>>0<g>>>0)}}else $h(0,d,e,f);while(0);return}function ei(d,e,f,g){d=d|0;e=e|0;f=f|0;g=g|0;var h=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0;r=i;i=i+64|0;q=r;p=c[d>>2]|0;o=d+(c[p+-8>>2]|0)|0;p=c[p+-4>>2]|0;c[q>>2]=f;c[q+4>>2]=d;c[q+8>>2]=e;c[q+12>>2]=g;g=q+16|0;d=q+20|0;e=q+24|0;h=q+28|0;j=q+32|0;k=q+40|0;l=(p|0)==(f|0);m=g;n=m+36|0;do{c[m>>2]=0;m=m+4|0}while((m|0)<(n|0));b[g+36>>1]=0;a[g+38>>0]=0;a:do if(l){c[q+48>>2]=1;bc[c[(c[f>>2]|0)+20>>2]&3](f,q,o,o,1,0);g=(c[e>>2]|0)==1?o:0}else{Rb[c[(c[p>>2]|0)+24>>2]&3](p,q,o,1,0);switch(c[q+36>>2]|0){case 0:{g=(c[k>>2]|0)==1&(c[h>>2]|0)==1&(c[j>>2]|0)==1?c[d>>2]|0:0;break a}case 1:break;default:{g=0;break a}}if((c[e>>2]|0)!=1?!((c[k>>2]|0)==0&(c[h>>2]|0)==1&(c[j>>2]|0)==1):0){g=0;break}g=c[g>>2]|0}while(0);i=r;return g|0}function fi(b,d,e,f,g){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;a[d+53>>0]=1;do if((c[d+4>>2]|0)==(f|0)){a[d+52>>0]=1;f=d+16|0;b=c[f>>2]|0;if(!b){c[f>>2]=e;c[d+24>>2]=g;c[d+36>>2]=1;if(!((g|0)==1?(c[d+48>>2]|0)==1:0))break;a[d+54>>0]=1;break}if((b|0)!=(e|0)){g=d+36|0;c[g>>2]=(c[g>>2]|0)+1;a[d+54>>0]=1;break}b=d+24|0;f=c[b>>2]|0;if((f|0)==2){c[b>>2]=g;f=g}if((f|0)==1?(c[d+48>>2]|0)==1:0)a[d+54>>0]=1}while(0);return}function gi(b,d,e,f,g){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;var h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0;a:do if((b|0)==(c[d+8>>2]|0)){if((c[d+4>>2]|0)==(e|0)?(h=d+28|0,(c[h>>2]|0)!=1):0)c[h>>2]=f}else{if((b|0)!=(c[d>>2]|0)){q=c[b+12>>2]|0;j=b+16+(q<<3)|0;ii(b+16|0,d,e,f,g);h=b+24|0;if((q|0)<=1)break;i=c[b+8>>2]|0;if((i&2|0)==0?(k=d+36|0,(c[k>>2]|0)!=1):0){if(!(i&1)){i=d+54|0;while(1){if(a[i>>0]|0)break a;if((c[k>>2]|0)==1)break a;ii(h,d,e,f,g);h=h+8|0;if(h>>>0>=j>>>0)break a}}i=d+24|0;b=d+54|0;while(1){if(a[b>>0]|0)break a;if((c[k>>2]|0)==1?(c[i>>2]|0)==1:0)break a;ii(h,d,e,f,g);h=h+8|0;if(h>>>0>=j>>>0)break a}}i=d+54|0;while(1){if(a[i>>0]|0)break a;ii(h,d,e,f,g);h=h+8|0;if(h>>>0>=j>>>0)break a}}if((c[d+16>>2]|0)!=(e|0)?(p=d+20|0,(c[p>>2]|0)!=(e|0)):0){c[d+32>>2]=f;m=d+44|0;if((c[m>>2]|0)==4)break;i=c[b+12>>2]|0;j=b+16+(i<<3)|0;k=d+52|0;f=d+53|0;n=d+54|0;l=b+8|0;o=d+24|0;b:do if((i|0)>0){i=0;h=0;b=b+16|0;while(1){a[k>>0]=0;a[f>>0]=0;hi(b,d,e,e,1,g);if(a[n>>0]|0){q=20;break b}do if(a[f>>0]|0){if(!(a[k>>0]|0))if(!(c[l>>2]&1)){h=1;q=20;break b}else{h=1;break}if((c[o>>2]|0)==1)break b;if(!(c[l>>2]&2))break b;else{i=1;h=1}}while(0);b=b+8|0;if(b>>>0>=j>>>0){q=20;break}}}else{i=0;h=0;q=20}while(0);do if((q|0)==20){if((!i?(c[p>>2]=e,e=d+40|0,c[e>>2]=(c[e>>2]|0)+1,(c[d+36>>2]|0)==1):0)?(c[o>>2]|0)==2:0){a[n>>0]=1;if(h)break}else q=24;if((q|0)==24?h:0)break;c[m>>2]=4;break a}while(0);c[m>>2]=3;break}if((f|0)==1)c[d+32>>2]=1}while(0);return}function hi(a,b,d,e,f,g){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;var h=0,i=0;i=c[a+4>>2]|0;h=i>>8;if(i&1)h=c[(c[e>>2]|0)+h>>2]|0;a=c[a>>2]|0;bc[c[(c[a>>2]|0)+20>>2]&3](a,b,d,e+h|0,(i&2|0)!=0?f:2,g);return}function ii(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0;h=c[a+4>>2]|0;g=h>>8;if(h&1)g=c[(c[d>>2]|0)+g>>2]|0;a=c[a>>2]|0;Rb[c[(c[a>>2]|0)+24>>2]&3](a,b,d+g|0,(h&2|0)!=0?e:2,f);return}function ji(b,d,e,f,g){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;var h=0,i=0,j=0,k=0;a:do if((b|0)==(c[d+8>>2]|0)){if((c[d+4>>2]|0)==(e|0)?(h=d+28|0,(c[h>>2]|0)!=1):0)c[h>>2]=f}else{if((b|0)!=(c[d>>2]|0)){j=c[b+8>>2]|0;Rb[c[(c[j>>2]|0)+24>>2]&3](j,d,e,f,g);break}if((c[d+16>>2]|0)!=(e|0)?(i=d+20|0,(c[i>>2]|0)!=(e|0)):0){c[d+32>>2]=f;f=d+44|0;if((c[f>>2]|0)==4)break;h=d+52|0;a[h>>0]=0;k=d+53|0;a[k>>0]=0;b=c[b+8>>2]|0;bc[c[(c[b>>2]|0)+20>>2]&3](b,d,e,e,1,g);if(a[k>>0]|0){if(!(a[h>>0]|0)){h=1;j=13}}else{h=0;j=13}do if((j|0)==13){c[i>>2]=e;k=d+40|0;c[k>>2]=(c[k>>2]|0)+1;if((c[d+36>>2]|0)==1?(c[d+24>>2]|0)==2:0){a[d+54>>0]=1;if(h)break}else j=16;if((j|0)==16?h:0)break;c[f>>2]=4;break a}while(0);c[f>>2]=3;break}if((f|0)==1)c[d+32>>2]=1}while(0);return}function ki(b,d,e,f,g){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;var h=0,i=0;do if((b|0)==(c[d+8>>2]|0)){if((c[d+4>>2]|0)==(e|0)?(i=d+28|0,(c[i>>2]|0)!=1):0)c[i>>2]=f}else if((b|0)==(c[d>>2]|0)){if((c[d+16>>2]|0)!=(e|0)?(h=d+20|0,(c[h>>2]|0)!=(e|0)):0){c[d+32>>2]=f;c[h>>2]=e;g=d+40|0;c[g>>2]=(c[g>>2]|0)+1;if((c[d+36>>2]|0)==1?(c[d+24>>2]|0)==2:0)a[d+54>>0]=1;c[d+44>>2]=4;break}if((f|0)==1)c[d+32>>2]=1}while(0);return}function li(b,d,e,f,g,h){b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;h=h|0;var i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0;if((b|0)==(c[d+8>>2]|0))fi(0,d,e,f,g);else{m=d+52|0;n=a[m>>0]|0;o=d+53|0;p=a[o>>0]|0;l=c[b+12>>2]|0;i=b+16+(l<<3)|0;a[m>>0]=0;a[o>>0]=0;hi(b+16|0,d,e,f,g,h);a:do if((l|0)>1){j=d+24|0;k=b+8|0;l=d+54|0;b=b+24|0;do{if(a[l>>0]|0)break a;if(!(a[m>>0]|0)){if((a[o>>0]|0)!=0?(c[k>>2]&1|0)==0:0)break a}else{if((c[j>>2]|0)==1)break a;if(!(c[k>>2]&2))break a}a[m>>0]=0;a[o>>0]=0;hi(b,d,e,f,g,h);b=b+8|0}while(b>>>0<i>>>0)}while(0);a[m>>0]=n;a[o>>0]=p}return}function mi(a,b,d,e,f,g){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;if((a|0)==(c[b+8>>2]|0))fi(0,b,d,e,f);else{a=c[a+8>>2]|0;bc[c[(c[a>>2]|0)+20>>2]&3](a,b,d,e,f,g)}return}function ni(a,b,d,e,f,g){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;if((a|0)==(c[b+8>>2]|0))fi(0,b,d,e,f);return}function oi(a){a=a|0;Ia(12625,12654,1164,12589)}function pi(a){a=a|0;return ((a|0)==32|(a+-9|0)>>>0<5)&1|0}function qi(){var a=0;if(!(c[597]|0))a=2644;else a=c[(gb()|0)+60>>2]|0;return a|0}function ri(b){b=b|0;var c=0,e=0;c=0;while(1){if((d[12742+c>>0]|0)==(b|0)){e=2;break}c=c+1|0;if((c|0)==87){c=87;b=12830;e=5;break}}if((e|0)==2)if(!c)b=12830;else{b=12830;e=5}if((e|0)==5)while(1){e=b;while(1){b=e+1|0;if(!(a[e>>0]|0))break;else e=b}c=c+-1|0;if(!c)break;else e=5}return b|0}function si(b,e,f){b=b|0;e=e|0;f=f|0;var g=0.0,h=0,j=0.0,k=0,l=0,m=0.0,n=0,o=0,p=0,q=0.0,r=0.0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0.0;L=i;i=i+512|0;H=L;switch(e|0){case 0:{K=24;J=-149;A=4;break}case 1:{K=53;J=-1074;A=4;break}case 2:{K=53;J=-1074;A=4;break}default:g=0.0}a:do if((A|0)==4){E=b+4|0;C=b+100|0;do{e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0}else e=vi(b)|0}while((pi(e)|0)!=0);b:do switch(e|0){case 43:case 45:{h=1-(((e|0)==45&1)<<1)|0;e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0;I=h;break b}else{e=vi(b)|0;I=h;break b}}default:I=1}while(0);h=e;e=0;do{if((h|32|0)!=(a[14634+e>>0]|0))break;do if(e>>>0<7){h=c[E>>2]|0;if(h>>>0<(c[C>>2]|0)>>>0){c[E>>2]=h+1;h=d[h>>0]|0;break}else{h=vi(b)|0;break}}while(0);e=e+1|0}while(e>>>0<8);c:do switch(e|0){case 8:break;case 3:{A=23;break}default:{k=(f|0)!=0;if(k&e>>>0>3)if((e|0)==8)break c;else{A=23;break c}d:do if(!e){e=0;do{if((h|32|0)!=(a[16477+e>>0]|0))break d;do if(e>>>0<2){h=c[E>>2]|0;if(h>>>0<(c[C>>2]|0)>>>0){c[E>>2]=h+1;h=d[h>>0]|0;break}else{h=vi(b)|0;break}}while(0);e=e+1|0}while(e>>>0<3)}while(0);switch(e|0){case 3:{e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0}else e=vi(b)|0;if((e|0)==40)e=1;else{if(!(c[C>>2]|0)){g=s;break a}c[E>>2]=(c[E>>2]|0)+-1;g=s;break a}while(1){h=c[E>>2]|0;if(h>>>0<(c[C>>2]|0)>>>0){c[E>>2]=h+1;h=d[h>>0]|0}else h=vi(b)|0;if(!((h+-48|0)>>>0<10|(h+-65|0)>>>0<26)?!((h|0)==95|(h+-97|0)>>>0<26):0)break;e=e+1|0}if((h|0)==41){g=s;break a}h=(c[C>>2]|0)==0;if(!h)c[E>>2]=(c[E>>2]|0)+-1;if(!k){c[(qi()|0)>>2]=22;ui(b,0);g=0.0;break a}if(!e){g=s;break a}while(1){e=e+-1|0;if(!h)c[E>>2]=(c[E>>2]|0)+-1;if(!e){g=s;break a}}}case 0:{do if((h|0)==48){e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0}else e=vi(b)|0;if((e|32|0)!=120){if(!(c[C>>2]|0)){e=48;break}c[E>>2]=(c[E>>2]|0)+-1;e=48;break}e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0;k=0}else{e=vi(b)|0;k=0}e:while(1){switch(e|0){case 46:{A=74;break e}case 48:break;default:{y=0;l=0;x=0;h=0;n=k;o=0;w=0;m=1.0;k=0;g=0.0;break e}}e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0;k=1;continue}else{e=vi(b)|0;k=1;continue}}if((A|0)==74){e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0}else e=vi(b)|0;if((e|0)==48){k=0;h=0;do{e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0}else e=vi(b)|0;k=gk(k|0,h|0,-1,-1)|0;h=D}while((e|0)==48);y=0;l=0;x=k;n=1;o=1;w=0;m=1.0;k=0;g=0.0}else{y=0;l=0;x=0;h=0;n=k;o=1;w=0;m=1.0;k=0;g=0.0}}while(1){u=e+-48|0;p=e|32;if(u>>>0>=10){v=(e|0)==46;if(!(v|(p+-97|0)>>>0<6)){p=x;u=y;break}if(v)if(!o){v=l;h=y;u=y;o=1;p=w;j=m}else{p=x;u=y;e=46;break}else A=86}else A=86;if((A|0)==86){A=0;e=(e|0)>57?p+-87|0:u;do if(!((y|0)<0|(y|0)==0&l>>>0<8)){if((y|0)<0|(y|0)==0&l>>>0<14){r=m*.0625;p=w;j=r;g=g+r*+(e|0);break}if((w|0)!=0|(e|0)==0){p=w;j=m}else{p=1;j=m;g=g+m*.5}}else{p=w;j=m;k=e+(k<<4)|0}while(0);l=gk(l|0,y|0,1,0)|0;v=x;u=D;n=1}e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;y=u;x=v;e=d[e>>0]|0;w=p;m=j;continue}else{y=u;x=v;e=vi(b)|0;w=p;m=j;continue}}if(!n){e=(c[C>>2]|0)==0;if(!e)c[E>>2]=(c[E>>2]|0)+-1;if(f){if(!e?(z=c[E>>2]|0,c[E>>2]=z+-1,(o|0)!=0):0)c[E>>2]=z+-2}else ui(b,0);g=+(I|0)*0.0;break a}n=(o|0)==0;o=n?l:p;n=n?u:h;if((u|0)<0|(u|0)==0&l>>>0<8){h=u;do{k=k<<4;l=gk(l|0,h|0,1,0)|0;h=D}while((h|0)<0|(h|0)==0&l>>>0<8)}if((e|32|0)==112){h=Hj(b,f)|0;e=D;if((h|0)==0&(e|0)==-2147483648){if(!f){ui(b,0);g=0.0;break a}if(!(c[C>>2]|0)){h=0;e=0}else{c[E>>2]=(c[E>>2]|0)+-1;h=0;e=0}}}else if(!(c[C>>2]|0)){h=0;e=0}else{c[E>>2]=(c[E>>2]|0)+-1;h=0;e=0}H=fk(o|0,n|0,2)|0;H=gk(H|0,D|0,-32,-1)|0;e=gk(H|0,D|0,h|0,e|0)|0;h=D;if(!k){g=+(I|0)*0.0;break a}if((h|0)>0|(h|0)==0&e>>>0>(0-J|0)>>>0){c[(qi()|0)>>2]=34;g=+(I|0)*1797693134862315708145274.0e284*1797693134862315708145274.0e284;break a}H=J+-106|0;G=((H|0)<0)<<31>>31;if((h|0)<(G|0)|(h|0)==(G|0)&e>>>0<H>>>0){c[(qi()|0)>>2]=34;g=+(I|0)*2.2250738585072014e-308*2.2250738585072014e-308;break a}if((k|0)>-1){do{G=!(g>=.5);H=G&1|k<<1;k=H^1;g=g+(G?g:g+-1.0);e=gk(e|0,h|0,-1,-1)|0;h=D}while((H|0)>-1);l=e;m=g}else{l=e;m=g}e=dk(32,0,J|0,((J|0)<0)<<31>>31|0)|0;e=gk(l|0,h|0,e|0,D|0)|0;J=D;if(0>(J|0)|0==(J|0)&K>>>0>e>>>0)if((e|0)<0){e=0;A=127}else A=125;else{e=K;A=125}if((A|0)==125)if((e|0)<53)A=127;else{h=e;j=+(I|0);g=0.0}if((A|0)==127){g=+(I|0);h=e;j=g;g=+yi(+Di(1.0,84-e|0),g)}K=(k&1|0)==0&(m!=0.0&(h|0)<32);g=j*(K?0.0:m)+(g+j*+(((K&1)+k|0)>>>0))-g;if(!(g!=0.0))c[(qi()|0)>>2]=34;g=+Ei(g,l);break a}else e=h;while(0);F=J+K|0;G=0-F|0;k=0;f:while(1){switch(e|0){case 46:{A=138;break f}case 48:break;default:{h=0;p=0;o=0;break f}}e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0;k=1;continue}else{e=vi(b)|0;k=1;continue}}if((A|0)==138){e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0}else e=vi(b)|0;if((e|0)==48){h=0;e=0;while(1){h=gk(h|0,e|0,-1,-1)|0;k=D;e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0}else e=vi(b)|0;if((e|0)==48)e=k;else{p=k;k=1;o=1;break}}}else{h=0;p=0;o=1}}c[H>>2]=0;n=e+-48|0;l=(e|0)==46;g:do if(l|n>>>0<10){B=H+496|0;y=0;v=0;w=l;A=p;u=k;z=o;k=0;l=0;o=0;h:while(1){do if(w)if(!z){h=y;p=v;z=1}else{p=A;e=y;n=v;break h}else{w=gk(y|0,v|0,1,0)|0;v=D;x=(e|0)!=48;if((l|0)>=125){if(!x){p=A;y=w;break}c[B>>2]=c[B>>2]|1;p=A;y=w;break}p=H+(l<<2)|0;if(k)n=e+-48+((c[p>>2]|0)*10|0)|0;c[p>>2]=n;k=k+1|0;n=(k|0)==9;p=A;y=w;u=1;k=n?0:k;l=(n&1)+l|0;o=x?w:o}while(0);e=c[E>>2]|0;if(e>>>0<(c[C>>2]|0)>>>0){c[E>>2]=e+1;e=d[e>>0]|0}else e=vi(b)|0;n=e+-48|0;w=(e|0)==46;if(!(w|n>>>0<10)){n=z;A=161;break g}else A=p}u=(u|0)!=0;A=169}else{y=0;v=0;u=k;n=o;k=0;l=0;o=0;A=161}while(0);do if((A|0)==161){B=(n|0)==0;h=B?y:h;p=B?v:p;u=(u|0)!=0;if(!((e|32|0)==101&u))if((e|0)>-1){e=y;n=v;A=169;break}else{e=y;n=v;A=171;break}n=Hj(b,f)|0;e=D;if((n|0)==0&(e|0)==-2147483648){if(!f){ui(b,0);g=0.0;break}if(!(c[C>>2]|0)){n=0;e=0}else{c[E>>2]=(c[E>>2]|0)+-1;n=0;e=0}}h=gk(n|0,e|0,h|0,p|0)|0;u=y;p=D;n=v;A=173}while(0);if((A|0)==169)if(c[C>>2]|0){c[E>>2]=(c[E>>2]|0)+-1;if(u){u=e;A=173}else A=172}else A=171;if((A|0)==171)if(u){u=e;A=173}else A=172;do if((A|0)==172){c[(qi()|0)>>2]=22;ui(b,0);g=0.0}else if((A|0)==173){e=c[H>>2]|0;if(!e){g=+(I|0)*0.0;break}if(((n|0)<0|(n|0)==0&u>>>0<10)&((h|0)==(u|0)&(p|0)==(n|0))?K>>>0>30|(e>>>K|0)==0:0){g=+(I|0)*+(e>>>0);break}b=(J|0)/-2|0;E=((b|0)<0)<<31>>31;if((p|0)>(E|0)|(p|0)==(E|0)&h>>>0>b>>>0){c[(qi()|0)>>2]=34;g=+(I|0)*1797693134862315708145274.0e284*1797693134862315708145274.0e284;break}b=J+-106|0;E=((b|0)<0)<<31>>31;if((p|0)<(E|0)|(p|0)==(E|0)&h>>>0<b>>>0){c[(qi()|0)>>2]=34;g=+(I|0)*2.2250738585072014e-308*2.2250738585072014e-308;break}if(k){if((k|0)<9){n=H+(l<<2)|0;e=c[n>>2]|0;do{e=e*10|0;k=k+1|0}while((k|0)!=9);c[n>>2]=e}l=l+1|0}if((o|0)<9?(o|0)<=(h|0)&(h|0)<18:0){if((h|0)==9){g=+(I|0)*+((c[H>>2]|0)>>>0);break}if((h|0)<9){g=+(I|0)*+((c[H>>2]|0)>>>0)/+(c[2648+(8-h<<2)>>2]|0);break}b=K+27+($(h,-3)|0)|0;e=c[H>>2]|0;if((b|0)>30|(e>>>b|0)==0){g=+(I|0)*+(e>>>0)*+(c[2648+(h+-10<<2)>>2]|0);break}}e=(h|0)%9|0;if(!e){k=0;e=0}else{u=(h|0)>-1?e:e+9|0;n=c[2648+(8-u<<2)>>2]|0;if(l){o=1e9/(n|0)|0;k=0;e=0;p=0;do{C=H+(p<<2)|0;E=c[C>>2]|0;b=((E>>>0)/(n>>>0)|0)+e|0;c[C>>2]=b;e=$((E>>>0)%(n>>>0)|0,o)|0;b=(p|0)==(k|0)&(b|0)==0;p=p+1|0;h=b?h+-9|0:h;k=b?p&127:k}while((p|0)!=(l|0));if(e){c[H+(l<<2)>>2]=e;l=l+1|0}}else{k=0;l=0}e=0;h=9-u+h|0}i:while(1){v=(h|0)<18;w=(h|0)==18;x=H+(k<<2)|0;do{if(!v){if(!w)break i;if((c[x>>2]|0)>>>0>=9007199){h=18;break i}}n=0;o=l+127|0;while(1){u=o&127;p=H+(u<<2)|0;o=fk(c[p>>2]|0,0,29)|0;o=gk(o|0,D|0,n|0,0)|0;n=D;if(n>>>0>0|(n|0)==0&o>>>0>1e9){b=pk(o|0,n|0,1e9,0)|0;o=qk(o|0,n|0,1e9,0)|0;n=b}else n=0;c[p>>2]=o;b=(u|0)==(k|0);l=(u|0)!=(l+127&127|0)|b?l:(o|0)==0?u:l;if(b)break;else o=u+-1|0}e=e+-29|0}while((n|0)==0);k=k+127&127;if((k|0)==(l|0)){b=l+127&127;l=H+((l+126&127)<<2)|0;c[l>>2]=c[l>>2]|c[H+(b<<2)>>2];l=b}c[H+(k<<2)>>2]=n;h=h+9|0}j:while(1){y=l+1&127;x=H+((l+127&127)<<2)|0;while(1){v=(h|0)==18;w=(h|0)>27?9:1;u=v^1;while(1){o=k&127;p=(o|0)==(l|0);do if(!p){n=c[H+(o<<2)>>2]|0;if(n>>>0<9007199){A=219;break}if(n>>>0>9007199)break;n=k+1&127;if((n|0)==(l|0)){A=219;break}n=c[H+(n<<2)>>2]|0;if(n>>>0<254740991){A=219;break}if(!(n>>>0>254740991|u)){h=o;break j}}else A=219;while(0);if((A|0)==219?(A=0,v):0){A=220;break j}e=e+w|0;if((k|0)==(l|0))k=l;else break}u=(1<<w)+-1|0;v=1e9>>>w;o=k;n=0;p=k;while(1){E=H+(p<<2)|0;b=c[E>>2]|0;k=(b>>>w)+n|0;c[E>>2]=k;n=$(b&u,v)|0;k=(p|0)==(o|0)&(k|0)==0;p=p+1&127;h=k?h+-9|0:h;k=k?p:o;if((p|0)==(l|0))break;else o=k}if(!n)continue;if((y|0)!=(k|0))break;c[x>>2]=c[x>>2]|1}c[H+(l<<2)>>2]=n;l=y}if((A|0)==220)if(p){c[H+(y+-1<<2)>>2]=0;h=l;l=y}else h=o;g=+((c[H+(h<<2)>>2]|0)>>>0);h=k+1&127;if((h|0)==(l|0)){l=k+2&127;c[H+(l+-1<<2)>>2]=0}r=+(I|0);j=r*(g*1.0e9+ +((c[H+(h<<2)>>2]|0)>>>0));v=e+53|0;p=v-J|0;u=(p|0)<(K|0);h=u&1;o=u?((p|0)<0?0:p):K;if((o|0)<53){M=+yi(+Di(1.0,105-o|0),j);m=+Ai(j,+Di(1.0,53-o|0));q=M;g=m;m=M+(j-m)}else{q=0.0;g=0.0;m=j}n=k+2&127;do if((n|0)==(l|0))j=g;else{n=c[H+(n<<2)>>2]|0;do if(n>>>0>=5e8){if(n>>>0>5e8){g=r*.75+g;break}if((k+3&127|0)==(l|0)){g=r*.5+g;break}else{g=r*.75+g;break}}else{if((n|0)==0?(k+3&127|0)==(l|0):0)break;g=r*.25+g}while(0);if((53-o|0)<=1){j=g;break}if(+Ai(g,1.0)!=0.0){j=g;break}j=g+1.0}while(0);g=m+j-q;do if((v&2147483647|0)>(-2-F|0)){if(+O(+g)>=9007199254740992.0){h=u&(o|0)==(p|0)?0:h;e=e+1|0;g=g*.5}if((e+50|0)<=(G|0)?!(j!=0.0&(h|0)!=0):0)break;c[(qi()|0)>>2]=34}while(0);g=+Ei(g,e)}while(0);break a}default:{if(c[C>>2]|0)c[E>>2]=(c[E>>2]|0)+-1;c[(qi()|0)>>2]=22;ui(b,0);g=0.0;break a}}}}while(0);if((A|0)==23){h=(c[C>>2]|0)==0;if(!h)c[E>>2]=(c[E>>2]|0)+-1;if((f|0)!=0&e>>>0>3)do{if(!h)c[E>>2]=(c[E>>2]|0)+-1;e=e+-1|0}while(e>>>0>3)}g=+(I|0)*t}while(0);i=L;return +g}function ti(b,e,f,g,h){b=b|0;e=e|0;f=f|0;g=g|0;h=h|0;var i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0;a:do if(e>>>0>36){c[(qi()|0)>>2]=22;h=0;g=0}else{r=b+4|0;q=b+100|0;do{i=c[r>>2]|0;if(i>>>0<(c[q>>2]|0)>>>0){c[r>>2]=i+1;i=d[i>>0]|0}else i=vi(b)|0}while((pi(i)|0)!=0);b:do switch(i|0){case 43:case 45:{j=((i|0)==45)<<31>>31;i=c[r>>2]|0;if(i>>>0<(c[q>>2]|0)>>>0){c[r>>2]=i+1;i=d[i>>0]|0;p=j;break b}else{i=vi(b)|0;p=j;break b}}default:p=0}while(0);j=(e|0)==0;do if((e&-17|0)==0&(i|0)==48){i=c[r>>2]|0;if(i>>>0<(c[q>>2]|0)>>>0){c[r>>2]=i+1;i=d[i>>0]|0}else i=vi(b)|0;if((i|32|0)!=120)if(j){e=8;n=46;break}else{n=32;break}e=c[r>>2]|0;if(e>>>0<(c[q>>2]|0)>>>0){c[r>>2]=e+1;i=d[e>>0]|0}else i=vi(b)|0;if((d[14643+(i+1)>>0]|0)>15){g=(c[q>>2]|0)==0;if(!g)c[r>>2]=(c[r>>2]|0)+-1;if(!f){ui(b,0);h=0;g=0;break a}if(g){h=0;g=0;break a}c[r>>2]=(c[r>>2]|0)+-1;h=0;g=0;break a}else{e=16;n=46}}else{e=j?10:e;if((d[14643+(i+1)>>0]|0)>>>0<e>>>0)n=32;else{if(c[q>>2]|0)c[r>>2]=(c[r>>2]|0)+-1;ui(b,0);c[(qi()|0)>>2]=22;h=0;g=0;break a}}while(0);if((n|0)==32)if((e|0)==10){e=i+-48|0;if(e>>>0<10){i=0;while(1){j=(i*10|0)+e|0;e=c[r>>2]|0;if(e>>>0<(c[q>>2]|0)>>>0){c[r>>2]=e+1;i=d[e>>0]|0}else i=vi(b)|0;e=i+-48|0;if(!(e>>>0<10&j>>>0<429496729)){e=j;break}else i=j}j=0}else{e=0;j=0}f=i+-48|0;if(f>>>0<10){while(1){k=ok(e|0,j|0,10,0)|0;l=D;m=((f|0)<0)<<31>>31;o=~m;if(l>>>0>o>>>0|(l|0)==(o|0)&k>>>0>~f>>>0){k=e;break}e=gk(k|0,l|0,f|0,m|0)|0;j=D;i=c[r>>2]|0;if(i>>>0<(c[q>>2]|0)>>>0){c[r>>2]=i+1;i=d[i>>0]|0}else i=vi(b)|0;f=i+-48|0;if(!(f>>>0<10&(j>>>0<429496729|(j|0)==429496729&e>>>0<2576980378))){k=e;break}}if(f>>>0>9){i=k;e=p}else{e=10;n=72}}else{i=e;e=p}}else n=46;c:do if((n|0)==46){if(!(e+-1&e)){n=a[14900+((e*23|0)>>>5&7)>>0]|0;j=a[14643+(i+1)>>0]|0;f=j&255;if(f>>>0<e>>>0){i=0;while(1){k=f|i<<n;i=c[r>>2]|0;if(i>>>0<(c[q>>2]|0)>>>0){c[r>>2]=i+1;i=d[i>>0]|0}else i=vi(b)|0;j=a[14643+(i+1)>>0]|0;f=j&255;if(!(k>>>0<134217728&f>>>0<e>>>0))break;else i=k}f=0}else{f=0;k=0}l=hk(-1,-1,n|0)|0;m=D;if((j&255)>>>0>=e>>>0|(f>>>0>m>>>0|(f|0)==(m|0)&k>>>0>l>>>0)){j=f;n=72;break}else i=f;while(1){k=fk(k|0,i|0,n|0)|0;f=D;k=j&255|k;i=c[r>>2]|0;if(i>>>0<(c[q>>2]|0)>>>0){c[r>>2]=i+1;i=d[i>>0]|0}else i=vi(b)|0;j=a[14643+(i+1)>>0]|0;if((j&255)>>>0>=e>>>0|(f>>>0>m>>>0|(f|0)==(m|0)&k>>>0>l>>>0)){j=f;n=72;break c}else i=f}}j=a[14643+(i+1)>>0]|0;f=j&255;if(f>>>0<e>>>0){i=0;while(1){k=f+($(i,e)|0)|0;i=c[r>>2]|0;if(i>>>0<(c[q>>2]|0)>>>0){c[r>>2]=i+1;i=d[i>>0]|0}else i=vi(b)|0;j=a[14643+(i+1)>>0]|0;f=j&255;if(!(k>>>0<119304647&f>>>0<e>>>0))break;else i=k}f=0}else{k=0;f=0}if((j&255)>>>0<e>>>0){n=pk(-1,-1,e|0,0)|0;o=D;m=f;while(1){if(m>>>0>o>>>0|(m|0)==(o|0)&k>>>0>n>>>0){j=m;n=72;break c}f=ok(k|0,m|0,e|0,0)|0;l=D;j=j&255;if(l>>>0>4294967295|(l|0)==-1&f>>>0>~j>>>0){j=m;n=72;break c}k=gk(j|0,0,f|0,l|0)|0;f=D;i=c[r>>2]|0;if(i>>>0<(c[q>>2]|0)>>>0){c[r>>2]=i+1;i=d[i>>0]|0}else i=vi(b)|0;j=a[14643+(i+1)>>0]|0;if((j&255)>>>0>=e>>>0){j=f;n=72;break}else m=f}}else{j=f;n=72}}while(0);if((n|0)==72)if((d[14643+(i+1)>>0]|0)>>>0<e>>>0){do{i=c[r>>2]|0;if(i>>>0<(c[q>>2]|0)>>>0){c[r>>2]=i+1;i=d[i>>0]|0}else i=vi(b)|0}while((d[14643+(i+1)>>0]|0)>>>0<e>>>0);c[(qi()|0)>>2]=34;j=h;i=g;e=(g&1|0)==0&0==0?p:0}else{i=k;e=p}if(c[q>>2]|0)c[r>>2]=(c[r>>2]|0)+-1;if(!(j>>>0<h>>>0|(j|0)==(h|0)&i>>>0<g>>>0)){if(!((g&1|0)!=0|0!=0|(e|0)!=0)){c[(qi()|0)>>2]=34;g=gk(g|0,h|0,-1,-1)|0;h=D;break}if(j>>>0>h>>>0|(j|0)==(h|0)&i>>>0>g>>>0){c[(qi()|0)>>2]=34;break}}g=((e|0)<0)<<31>>31;g=dk(i^e|0,j^g|0,e|0,g|0)|0;h=D}while(0);D=h;return g|0}function ui(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;c[a+104>>2]=b;d=c[a+4>>2]|0;e=c[a+8>>2]|0;f=e-d|0;c[a+108>>2]=f;if((b|0)!=0&(f|0)>(b|0))c[a+100>>2]=d+b;else c[a+100>>2]=e;return}function vi(b){b=b|0;var e=0,f=0,g=0,h=0,i=0,j=0;f=b+104|0;i=c[f>>2]|0;if((i|0)!=0?(c[b+108>>2]|0)>=(i|0):0)j=4;else{e=Vi(b)|0;if((e|0)>=0){h=c[f>>2]|0;f=b+8|0;if(h){g=c[f>>2]|0;i=c[b+4>>2]|0;f=g;h=h-(c[b+108>>2]|0)+-1|0;if((f-i|0)>(h|0))c[b+100>>2]=i+h;else j=9}else{g=c[f>>2]|0;f=g;j=9}if((j|0)==9)c[b+100>>2]=f;f=c[b+4>>2]|0;if(g){b=b+108|0;c[b>>2]=g+1-f+(c[b>>2]|0)}f=f+-1|0;if((d[f>>0]|0|0)!=(e|0))a[f>>0]=e}else j=4}if((j|0)==4){c[b+100>>2]=0;e=-1}return e|0}function wi(a){a=a|0;if(a>>>0>4294963200){c[(qi()|0)>>2]=0-a;a=-1}return a|0}function xi(a,b){a=+a;b=+b;var d=0,e=0;h[k>>3]=a;e=c[k>>2]|0;d=c[k+4>>2]|0;h[k>>3]=b;d=c[k+4>>2]&-2147483648|d&2147483647;c[k>>2]=e;c[k+4>>2]=d;return +(+h[k>>3])}function yi(a,b){a=+a;b=+b;return +(+xi(a,b))}function zi(a,b){a=+a;b=+b;var d=0,e=0,f=0,g=0,i=0,j=0,l=0,m=0,n=0,o=0,p=0,q=0;h[k>>3]=a;d=c[k>>2]|0;m=c[k+4>>2]|0;h[k>>3]=b;n=c[k>>2]|0;o=c[k+4>>2]|0;e=hk(d|0,m|0,52)|0;e=e&2047;j=hk(n|0,o|0,52)|0;j=j&2047;p=m&-2147483648;i=fk(n|0,o|0,1)|0;l=D;a:do if(!((i|0)==0&(l|0)==0)?(g=o&2147483647,!(g>>>0>2146435072|(g|0)==2146435072&n>>>0>0|(e|0)==2047)):0){f=fk(d|0,m|0,1)|0;g=D;if(!(g>>>0>l>>>0|(g|0)==(l|0)&f>>>0>i>>>0))return +((f|0)==(i|0)&(g|0)==(l|0)?a*0.0:a);if(!e){e=fk(d|0,m|0,12)|0;f=D;if((f|0)>-1|(f|0)==-1&e>>>0>4294967295){g=e;e=0;do{e=e+-1|0;g=fk(g|0,f|0,1)|0;f=D}while((f|0)>-1|(f|0)==-1&g>>>0>4294967295)}else e=0;d=fk(d|0,m|0,1-e|0)|0;f=D}else f=m&1048575|1048576;if(!j){g=fk(n|0,o|0,12)|0;i=D;if((i|0)>-1|(i|0)==-1&g>>>0>4294967295){j=0;do{j=j+-1|0;g=fk(g|0,i|0,1)|0;i=D}while((i|0)>-1|(i|0)==-1&g>>>0>4294967295)}else j=0;n=fk(n|0,o|0,1-j|0)|0;m=D}else m=o&1048575|1048576;l=dk(d|0,f|0,n|0,m|0)|0;i=D;g=(i|0)>-1|(i|0)==-1&l>>>0>4294967295;b:do if((e|0)>(j|0)){while(1){if(g)if((d|0)==(n|0)&(f|0)==(m|0))break;else{d=l;f=i}d=fk(d|0,f|0,1)|0;f=D;e=e+-1|0;l=dk(d|0,f|0,n|0,m|0)|0;i=D;g=(i|0)>-1|(i|0)==-1&l>>>0>4294967295;if((e|0)<=(j|0))break b}b=a*0.0;break a}while(0);if(g)if((d|0)==(n|0)&(f|0)==(m|0)){b=a*0.0;break}else{f=i;d=l}if(f>>>0<1048576|(f|0)==1048576&d>>>0<0)do{d=fk(d|0,f|0,1)|0;f=D;e=e+-1|0}while(f>>>0<1048576|(f|0)==1048576&d>>>0<0);if((e|0)>0){o=gk(d|0,f|0,0,-1048576)|0;d=D;e=fk(e|0,0,52)|0;d=d|D;e=o|e}else{e=hk(d|0,f|0,1-e|0)|0;d=D}c[k>>2]=e;c[k+4>>2]=d|p;b=+h[k>>3]}else q=3;while(0);if((q|0)==3){b=a*b;b=b/b}return +b}function Ai(a,b){a=+a;b=+b;return +(+zi(a,b))}function Bi(a,b){a=+a;b=b|0;var d=0,e=0,f=0;h[k>>3]=a;d=c[k>>2]|0;e=c[k+4>>2]|0;f=hk(d|0,e|0,52)|0;f=f&2047;switch(f|0){case 0:{if(a!=0.0){a=+Bi(a*18446744073709551616.0,b);d=(c[b>>2]|0)+-64|0}else d=0;c[b>>2]=d;break}case 2047:break;default:{c[b>>2]=f+-1022;c[k>>2]=d;c[k+4>>2]=e&-2146435073|1071644672;a=+h[k>>3]}}return +a}function Ci(a,b){a=+a;b=b|0;return +(+Bi(a,b))}function Di(a,b){a=+a;b=b|0;var d=0;if((b|0)>1023){a=a*8988465674311579538646525.0e283;d=b+-1023|0;if((d|0)>1023){d=b+-2046|0;d=(d|0)>1023?1023:d;a=a*8988465674311579538646525.0e283}}else if((b|0)<-1022){a=a*2.2250738585072014e-308;d=b+1022|0;if((d|0)<-1022){d=b+2044|0;d=(d|0)<-1022?-1022:d;a=a*2.2250738585072014e-308}}else d=b;d=fk(d+1023|0,0,52)|0;b=D;c[k>>2]=d;c[k+4>>2]=b;return +(a*+h[k>>3])}function Ei(a,b){a=+a;b=b|0;return +(+Di(a,b))}function Fi(b,d,e,f){b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0,j=0,k=0,l=0,m=0;l=i;i=i+16|0;g=l;j=(f|0)==0?2680:f;f=c[j>>2]|0;a:do if(!d)if(!f)f=0;else k=15;else{h=(b|0)==0?g:b;if(!e)f=-2;else{if(!f){f=a[d>>0]|0;g=f&255;if(f<<24>>24>-1){c[h>>2]=g;f=f<<24>>24!=0&1;break}f=g+-194|0;if(f>>>0>50){k=15;break}f=c[2432+(f<<2)>>2]|0;g=e+-1|0;if(g){d=d+1|0;k=9}}else{g=e;k=9}b:do if((k|0)==9){b=a[d>>0]|0;m=(b&255)>>>3;if((m+-16|m+(f>>26))>>>0>7){k=15;break a}while(1){d=d+1|0;f=(b&255)+-128|f<<6;g=g+-1|0;if((f|0)>=0)break;if(!g)break b;b=a[d>>0]|0;if((b&-64)<<24>>24!=-128){k=15;break a}}c[j>>2]=0;c[h>>2]=f;f=e-g|0;break a}while(0);c[j>>2]=f;f=-2}}while(0);if((k|0)==15){c[j>>2]=0;c[(qi()|0)>>2]=84;f=-1}i=l;return f|0}function Gi(a){a=a|0;if(!a)a=1;else a=(c[a>>2]|0)==0;return a&1|0}function Hi(b,d,e){b=b|0;d=d|0;e=e|0;do if(b){if(d>>>0<128){a[b>>0]=d;b=1;break}if(d>>>0<2048){a[b>>0]=d>>>6|192;a[b+1>>0]=d&63|128;b=2;break}if(d>>>0<55296|(d&-8192|0)==57344){a[b>>0]=d>>>12|224;a[b+1>>0]=d>>>6&63|128;a[b+2>>0]=d&63|128;b=3;break}if((d+-65536|0)>>>0<1048576){a[b>>0]=d>>>18|240;a[b+1>>0]=d>>>12&63|128;a[b+2>>0]=d>>>6&63|128;a[b+3>>0]=d&63|128;b=4;break}else{c[(qi()|0)>>2]=84;b=-1;break}}else b=1;while(0);return b|0}function Ii(a,b){a=a|0;b=b|0;if(!a)a=0;else a=Hi(a,b,0)|0;return a|0}function Ji(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0,j=0,k=0,l=0,m=0,n=0,o=0;o=i;i=i+112|0;n=o+40|0;l=o+24|0;k=o+16|0;g=o;m=o+52|0;f=a[d>>0]|0;if(sj(14909,f<<24>>24,4)|0){e=Uj(1144)|0;if(!e)e=0;else{h=e;j=h+112|0;do{c[h>>2]=0;h=h+4|0}while((h|0)<(j|0));if(!(wj(d,43)|0))c[e>>2]=f<<24>>24==114?8:4;if(wj(d,101)|0){c[g>>2]=b;c[g+4>>2]=2;c[g+8>>2]=1;va(221,g|0)|0;f=a[d>>0]|0}if(f<<24>>24==97){c[k>>2]=b;c[k+4>>2]=3;f=va(221,k|0)|0;if(!(f&1024)){c[l>>2]=b;c[l+4>>2]=4;c[l+8>>2]=f|1024;va(221,l|0)|0}d=c[e>>2]|128;c[e>>2]=d}else d=c[e>>2]|0;c[e+60>>2]=b;c[e+44>>2]=e+120;c[e+48>>2]=1024;f=e+75|0;a[f>>0]=-1;if((d&8|0)==0?(c[n>>2]=b,c[n+4>>2]=21505,c[n+8>>2]=m,(mb(54,n|0)|0)==0):0)a[f>>0]=10;c[e+32>>2]=14;c[e+36>>2]=4;c[e+40>>2]=5;c[e+12>>2]=2;if(!(c[598]|0))c[e+76>>2]=-1;yb(2416);f=c[603]|0;c[e+56>>2]=f;if(f)c[f+52>>2]=e;c[603]=e;nb(2416)}}else{c[(qi()|0)>>2]=22;e=0}i=o;return e|0}function Ki(b){b=b|0;var c=0,d=0,e=0;d=(wj(b,43)|0)==0;c=a[b>>0]|0;d=d?c<<24>>24!=114&1:2;e=(wj(b,120)|0)==0;d=e?d:d|128;b=(wj(b,101)|0)==0;b=b?d:d|524288;b=c<<24>>24==114?b:b|64;b=c<<24>>24==119?b|512:b;return (c<<24>>24==97?b|1024:b)|0}function Li(a){a=a|0;return 0}function Mi(a){a=a|0;return}function Ni(a){a=a|0;var b=0,d=0;b=i;i=i+16|0;d=b;c[d>>2]=c[a+60>>2];a=wi(zb(6,d|0)|0)|0;i=b;return a|0}function Oi(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,j=0,k=0,l=0,m=0,n=0;m=i;i=i+48|0;h=m+16|0;g=m;f=m+32|0;c[f>>2]=d;j=f+4|0;l=b+48|0;n=c[l>>2]|0;c[j>>2]=e-((n|0)!=0&1);k=b+44|0;c[f+8>>2]=c[k>>2];c[f+12>>2]=n;if(!(c[597]|0)){c[h>>2]=c[b+60>>2];c[h+4>>2]=f;c[h+8>>2]=2;f=wi(Nb(145,h|0)|0)|0}else{Fa(13,b|0);c[g>>2]=c[b+60>>2];c[g+4>>2]=f;c[g+8>>2]=2;f=wi(Nb(145,g|0)|0)|0;pb(0)}if((f|0)>=1){j=c[j>>2]|0;if(f>>>0>j>>>0){h=c[k>>2]|0;g=b+4|0;c[g>>2]=h;c[b+8>>2]=h+(f-j);if(!(c[l>>2]|0))f=e;else{c[g>>2]=h+1;a[d+(e+-1)>>0]=a[h>>0]|0;f=e}}}else{c[b>>2]=c[b>>2]|f&48^16;c[b+8>>2]=0;c[b+4>>2]=0}i=m;return f|0}function Pi(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0;f=i;i=i+32|0;g=f;e=f+20|0;c[g>>2]=c[a+60>>2];c[g+4>>2]=0;c[g+8>>2]=b;c[g+12>>2]=e;c[g+16>>2]=d;if((wi(Ib(140,g|0)|0)|0)<0){c[e>>2]=-1;a=-1}else a=c[e>>2]|0;i=f;return a|0}function Qi(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0;q=i;i=i+48|0;n=q+16|0;m=q;e=q+32|0;o=a+28|0;f=c[o>>2]|0;c[e>>2]=f;p=a+20|0;f=(c[p>>2]|0)-f|0;c[e+4>>2]=f;c[e+8>>2]=b;c[e+12>>2]=d;k=a+60|0;l=a+44|0;b=2;f=f+d|0;while(1){if(!(c[597]|0)){c[n>>2]=c[k>>2];c[n+4>>2]=e;c[n+8>>2]=b;h=wi(Ob(146,n|0)|0)|0}else{Fa(14,a|0);c[m>>2]=c[k>>2];c[m+4>>2]=e;c[m+8>>2]=b;h=wi(Ob(146,m|0)|0)|0;pb(0)}if((f|0)==(h|0)){f=6;break}if((h|0)<0){f=8;break}f=f-h|0;g=c[e+4>>2]|0;if(h>>>0<=g>>>0)if((b|0)==2){c[o>>2]=(c[o>>2]|0)+h;j=g;b=2}else j=g;else{j=c[l>>2]|0;c[o>>2]=j;c[p>>2]=j;j=c[e+12>>2]|0;h=h-g|0;e=e+8|0;b=b+-1|0}c[e>>2]=(c[e>>2]|0)+h;c[e+4>>2]=j-h}if((f|0)==6){n=c[l>>2]|0;c[a+16>>2]=n+(c[a+48>>2]|0);a=n;c[o>>2]=a;c[p>>2]=a}else if((f|0)==8){c[a+16>>2]=0;c[o>>2]=0;c[p>>2]=0;c[a>>2]=c[a>>2]|32;if((b|0)==2)d=0;else d=d-(c[e+4>>2]|0)|0}i=q;return d|0}function Ri(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0;g=i;i=i+80|0;f=g;c[b+36>>2]=4;if((c[b>>2]&64|0)==0?(c[f>>2]=c[b+60>>2],c[f+4>>2]=21505,c[f+8>>2]=g+12,(mb(54,f|0)|0)!=0):0)a[b+75>>0]=-1;f=Qi(b,d,e)|0;i=g;return f|0}function Si(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0;e=a+84|0;g=c[e>>2]|0;h=d+256|0;f=sj(g,0,h)|0;f=(f|0)==0?h:f-g|0;d=f>>>0<d>>>0?f:d;ik(b|0,g|0,d|0)|0;c[a+4>>2]=g+d;b=g+f|0;c[a+8>>2]=b;c[e>>2]=b;return d|0}function Ti(b){b=b|0;var d=0,e=0;d=b+74|0;e=a[d>>0]|0;a[d>>0]=e+255|e;d=b+20|0;e=b+44|0;if((c[d>>2]|0)>>>0>(c[e>>2]|0)>>>0)Qb[c[b+36>>2]&15](b,0,0)|0;c[b+16>>2]=0;c[b+28>>2]=0;c[d>>2]=0;d=c[b>>2]|0;if(d&20)if(!(d&4))d=-1;else{c[b>>2]=d|32;d=-1}else{d=c[e>>2]|0;c[b+8>>2]=d;c[b+4>>2]=d;d=0}return d|0}function Ui(b){b=b|0;var d=0,e=0;d=b+74|0;e=a[d>>0]|0;a[d>>0]=e+255|e;d=c[b>>2]|0;if(!(d&8)){c[b+8>>2]=0;c[b+4>>2]=0;d=c[b+44>>2]|0;c[b+28>>2]=d;c[b+20>>2]=d;c[b+16>>2]=d+(c[b+48>>2]|0);d=0}else{c[b>>2]=d|32;d=-1}return d|0}function Vi(a){a=a|0;var b=0,e=0;e=i;i=i+16|0;b=e;if((c[a+8>>2]|0)==0?(Ti(a)|0)!=0:0)b=-1;else if((Qb[c[a+32>>2]&15](a,b,1)|0)==1)b=d[b>>0]|0;else b=-1;i=e;return b|0}function Wi(a){a=a|0;var b=0,d=0,e=0;e=(c[a>>2]&1|0)!=0;if(!e){yb(2416);d=c[a+52>>2]|0;b=a+56|0;if(d)c[d+56>>2]=c[b>>2];b=c[b>>2]|0;if(b)c[b+52>>2]=d;if((c[603]|0)==(a|0))c[603]=b;nb(2416)}b=Yi(a)|0;b=Yb[c[a+12>>2]&31](a)|0|b;d=c[a+92>>2]|0;if(d)Vj(d);if(!e)Vj(a);return b|0}function Xi(a){a=a|0;var b=0;if((c[a+76>>2]|0)>-1){b=(Li(a)|0)==0;a=(c[a>>2]|0)>>>5&1}else a=(c[a>>2]|0)>>>5&1;return a|0}function Yi(a){a=a|0;var b=0,d=0;do if(a){if((c[a+76>>2]|0)<=-1){b=Kj(a)|0;break}d=(Li(a)|0)==0;b=Kj(a)|0;if(!d)Mi(a)}else{if(!(c[660]|0))b=0;else b=Yi(c[660]|0)|0;yb(2416);a=c[603]|0;if(a)do{if((c[a+76>>2]|0)>-1)d=Li(a)|0;else d=0;if((c[a+20>>2]|0)>>>0>(c[a+28>>2]|0)>>>0)b=Kj(a)|0|b;if(d)Mi(a);a=c[a+56>>2]|0}while((a|0)!=0);nb(2416)}while(0);return b|0}function Zi(b,e,f){b=b|0;e=e|0;f=f|0;var g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0;if((c[f+76>>2]|0)>-1)o=Li(f)|0;else o=0;g=e+-1|0;if((e|0)<2){p=f+74|0;n=a[p>>0]|0;a[p>>0]=n+255|n;if(o)Mi(f);if(!g)a[b>>0]=0;else b=0}else{a:do if(g){m=f+4|0;n=f+8|0;h=b;while(1){i=c[m>>2]|0;q=i;k=(c[n>>2]|0)-q|0;j=sj(i,10,k)|0;r=(j|0)==0;j=r?k:1-q+j|0;q=j>>>0<g>>>0;j=q?j:g;ik(h|0,i|0,j|0)|0;i=c[m>>2]|0;k=i+j|0;c[m>>2]=k;e=h+j|0;l=g-j|0;if(!(r&q)){p=18;break a}if(k>>>0<(c[n>>2]|0)>>>0){j=j+1|0;c[m>>2]=i+j;i=d[k>>0]|0}else{g=Vi(f)|0;if((g|0)<0)break;j=j+1|0;i=g}g=l+-1|0;h=h+j|0;a[e>>0]=i;if(!((g|0)!=0&(i&255|0)!=10)){e=h;p=18;break a}}if((e|0)!=(b|0)?(c[f>>2]&16|0)!=0:0)p=18;else b=0}else{e=b;p=18}while(0);if((p|0)==18)if(!b)b=0;else a[e>>0]=0;if(o)Mi(f)}return b|0}function _i(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0;g=i;i=i+32|0;f=g+16|0;e=g;if(sj(14909,a[d>>0]|0,4)|0){h=Ki(d)|0|32768;c[e>>2]=b;c[e+4>>2]=h;c[e+8>>2]=438;e=wi(Ab(5,e|0)|0)|0;if((e|0)>=0){b=Ji(e,d)|0;if(!b){c[f>>2]=e;zb(6,f|0)|0;b=0}}else b=0}else{c[(qi()|0)>>2]=22;b=0}i=g;return b|0}function $i(a,b){a=a|0;b=b|0;return (ij(a,Bj(a)|0,1,b)|0)+-1|0}function aj(b,d,e,f){b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0,i=0,j=0,k=0,l=0;j=$(e,d)|0;if((c[f+76>>2]|0)>-1)k=Li(f)|0;else k=0;g=f+74|0;h=a[g>>0]|0;a[g>>0]=h+255|h;g=f+4|0;h=c[g>>2]|0;i=(c[f+8>>2]|0)-h|0;if((i|0)>0){i=i>>>0<j>>>0?i:j;ik(b|0,h|0,i|0)|0;c[g>>2]=h+i;b=b+i|0;g=j-i|0}else g=j;a:do if(!g)l=13;else{i=f+32|0;h=g;while(1){if(Ti(f)|0){e=h;break}g=Qb[c[i>>2]&15](f,b,h)|0;if((g+1|0)>>>0<2){e=h;break}if((h|0)==(g|0)){l=13;break a}else{b=b+g|0;h=h-g|0}}if(k)Mi(f);e=((j-e|0)>>>0)/(d>>>0)|0}while(0);if((l|0)==13)if(k)Mi(f);return e|0}function bj(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;if((d|0)==1)b=b-(c[a+8>>2]|0)+(c[a+4>>2]|0)|0;f=a+20|0;e=a+28|0;if((c[f>>2]|0)>>>0>(c[e>>2]|0)>>>0?(Qb[c[a+36>>2]&15](a,0,0)|0,(c[f>>2]|0)==0):0)b=-1;else{c[a+16>>2]=0;c[e>>2]=0;c[f>>2]=0;if((Qb[c[a+40>>2]&15](a,b,d)|0)<0)b=-1;else{c[a+8>>2]=0;c[a+4>>2]=0;c[a>>2]=c[a>>2]&-17;b=0}}return b|0}function cj(a,b,d){a=a|0;b=b|0;d=d|0;var e=0;if((c[a+76>>2]|0)>-1){e=(Li(a)|0)==0;b=bj(a,b,d)|0;if(!e)Mi(a)}else b=bj(a,b,d)|0;return b|0}function dj(a,b,c){a=a|0;b=b|0;c=c|0;return cj(a,b,c)|0}function ej(a){a=a|0;var b=0;if(!(c[a>>2]&128))b=1;else b=(c[a+20>>2]|0)>>>0>(c[a+28>>2]|0)>>>0?2:1;b=Qb[c[a+40>>2]&15](a,0,b)|0;if((b|0)>=0)b=b-(c[a+8>>2]|0)+(c[a+4>>2]|0)+(c[a+20>>2]|0)-(c[a+28>>2]|0)|0;return b|0}function fj(a){a=a|0;var b=0;if((c[a+76>>2]|0)>-1){b=(Li(a)|0)==0;a=ej(a)|0}else a=ej(a)|0;return a|0}function gj(a){a=a|0;return fj(a)|0}function hj(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,i=0;f=e+16|0;g=c[f>>2]|0;if(!g)if(!(Ui(e)|0)){g=c[f>>2]|0;h=4}else f=0;else h=4;a:do if((h|0)==4){i=e+20|0;h=c[i>>2]|0;if((g-h|0)>>>0<d>>>0){f=Qb[c[e+36>>2]&15](e,b,d)|0;break}b:do if((a[e+75>>0]|0)>-1){f=d;while(1){if(!f){g=h;f=0;break b}g=f+-1|0;if((a[b+g>>0]|0)==10)break;else f=g}if((Qb[c[e+36>>2]&15](e,b,f)|0)>>>0<f>>>0)break a;d=d-f|0;b=b+f|0;g=c[i>>2]|0}else{g=h;f=0}while(0);ik(g|0,b|0,d|0)|0;c[i>>2]=(c[i>>2]|0)+d;f=f+d|0}while(0);return f|0}function ij(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,g=0;f=$(d,b)|0;if((c[e+76>>2]|0)>-1){g=(Li(e)|0)==0;a=hj(a,f,e)|0;if(!g)Mi(e)}else a=hj(a,f,e)|0;if((a|0)!=(f|0))d=(a>>>0)/(b>>>0)|0;return d|0}function jj(a){a=a|0;var b=0;if((c[a+76>>2]|0)>-1){b=(Li(a)|0)==0;bj(a,0,0)|0;c[a>>2]=c[a>>2]&-33;if(!b)Mi(a)}else{bj(a,0,0)|0;c[a>>2]=c[a>>2]&-33}return}function kj(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;e=i;i=i+16|0;f=e;c[f>>2]=d;d=pj(a,b,f)|0;i=e;return d|0}function lj(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0,j=0;j=i;i=i+16|0;e=j;f=Uj(240)|0;do if(f){c[e>>2]=c[d>>2];e=oj(f,240,b,e)|0;if(e>>>0<240){b=Xj(f,e+1|0)|0;c[a>>2]=(b|0)!=0?b:f;break}Vj(f);if((e|0)>=0?(h=e+1|0,g=Uj(h)|0,c[a>>2]=g,(g|0)!=0):0)e=oj(g,h,b,d)|0;else e=-1}else e=-1;while(0);i=j;return e|0}function mj(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0;s=i;i=i+224|0;o=s+80|0;r=s+96|0;q=s;p=s+136|0;f=r;g=f+40|0;do{c[f>>2]=0;f=f+4|0}while((f|0)<(g|0));c[o>>2]=c[e>>2];if((Lj(0,d,o,q,r)|0)<0)e=-1;else{if((c[b+76>>2]|0)>-1)m=Li(b)|0;else m=0;e=c[b>>2]|0;n=e&32;if((a[b+74>>0]|0)<1)c[b>>2]=e&-33;e=b+48|0;if(!(c[e>>2]|0)){g=b+44|0;h=c[g>>2]|0;c[g>>2]=p;j=b+28|0;c[j>>2]=p;k=b+20|0;c[k>>2]=p;c[e>>2]=80;l=b+16|0;c[l>>2]=p+80;f=Lj(b,d,o,q,r)|0;if(h){Qb[c[b+36>>2]&15](b,0,0)|0;f=(c[k>>2]|0)==0?-1:f;c[g>>2]=h;c[e>>2]=0;c[l>>2]=0;c[j>>2]=0;c[k>>2]=0}}else f=Lj(b,d,o,q,r)|0;e=c[b>>2]|0;c[b>>2]=e|n;if(m)Mi(b);e=(e&32|0)==0?f:-1}i=s;return e|0}function nj(e,f,j){e=e|0;f=f|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0.0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0,N=0,O=0,P=0,Q=0;P=i;i=i+304|0;H=P+16|0;J=P+8|0;I=P+33|0;K=P;y=P+32|0;if((c[e+76>>2]|0)>-1)O=Li(e)|0;else O=0;k=a[f>>0]|0;a:do if(k<<24>>24){L=e+4|0;M=e+100|0;G=e+108|0;z=e+8|0;A=I+10|0;B=I+33|0;C=J+4|0;E=I+46|0;F=I+94|0;m=k;k=0;n=f;s=0;l=0;f=0;b:while(1){c:do if(!(pi(m&255)|0)){m=(a[n>>0]|0)==37;d:do if(m){q=n+1|0;o=a[q>>0]|0;e:do switch(o<<24>>24){case 37:break d;case 42:{x=0;o=n+2|0;break}default:{o=(o&255)+-48|0;if(o>>>0<10?(a[n+2>>0]|0)==36:0){c[H>>2]=c[j>>2];while(1){x=(c[H>>2]|0)+(4-1)&~(4-1);m=c[x>>2]|0;c[H>>2]=x+4;if(o>>>0>1)o=o+-1|0;else break}x=m;o=n+3|0;break e}o=(c[j>>2]|0)+(4-1)&~(4-1);x=c[o>>2]|0;c[j>>2]=o+4;o=q}}while(0);m=a[o>>0]|0;n=m&255;if((n+-48|0)>>>0<10){m=0;while(1){q=(m*10|0)+-48+n|0;o=o+1|0;m=a[o>>0]|0;n=m&255;if((n+-48|0)>>>0>=10)break;else m=q}}else q=0;if(m<<24>>24==109){o=o+1|0;r=a[o>>0]|0;m=(x|0)!=0&1;l=0;f=0}else{r=m;m=0}n=o+1|0;switch(r&255|0){case 104:{w=(a[n>>0]|0)==104;n=w?o+2|0:n;o=w?-2:-1;break}case 108:{w=(a[n>>0]|0)==108;n=w?o+2|0:n;o=w?3:1;break}case 106:{o=3;break}case 116:case 122:{o=1;break}case 76:{o=2;break}case 110:case 112:case 67:case 83:case 91:case 99:case 115:case 88:case 71:case 70:case 69:case 65:case 103:case 102:case 101:case 97:case 120:case 117:case 111:case 105:case 100:{n=o;o=0;break}default:{N=152;break b}}r=d[n>>0]|0;t=(r&47|0)==3;r=t?r|32:r;t=t?1:o;switch(r|0){case 99:{w=s;v=(q|0)<1?1:q;break}case 91:{w=s;v=q;break}case 110:{if(!x){o=s;break c}switch(t|0){case -2:{a[x>>0]=s;o=s;break c}case -1:{b[x>>1]=s;o=s;break c}case 0:{c[x>>2]=s;o=s;break c}case 1:{c[x>>2]=s;o=s;break c}case 3:{o=x;c[o>>2]=s;c[o+4>>2]=((s|0)<0)<<31>>31;o=s;break c}default:{o=s;break c}}}default:{ui(e,0);do{o=c[L>>2]|0;if(o>>>0<(c[M>>2]|0)>>>0){c[L>>2]=o+1;o=d[o>>0]|0}else o=vi(e)|0}while((pi(o)|0)!=0);o=c[L>>2]|0;if(c[M>>2]|0){o=o+-1|0;c[L>>2]=o}w=(c[G>>2]|0)+s+o-(c[z>>2]|0)|0;v=q}}ui(e,v);o=c[L>>2]|0;q=c[M>>2]|0;if(o>>>0<q>>>0)c[L>>2]=o+1;else{if((vi(e)|0)<0){N=152;break b}q=c[M>>2]|0}if(q)c[L>>2]=(c[L>>2]|0)+-1;f:do switch(r|0){case 91:case 99:case 115:{u=(r|0)==99;g:do if((r&239|0)==99){ek(I|0,-1,257)|0;a[I>>0]=0;if((r|0)==115){a[B>>0]=0;a[A>>0]=0;a[A+1>>0]=0;a[A+2>>0]=0;a[A+3>>0]=0;a[A+4>>0]=0}}else{Q=n+1|0;s=(a[Q>>0]|0)==94;o=s&1;r=s?Q:n;n=s?n+2|0:Q;ek(I|0,s&1|0,257)|0;a[I>>0]=0;switch(a[n>>0]|0){case 45:{s=(o^1)&255;a[E>>0]=s;n=r+2|0;break}case 93:{s=(o^1)&255;a[F>>0]=s;n=r+2|0;break}default:s=(o^1)&255}while(1){o=a[n>>0]|0;h:do switch(o<<24>>24){case 0:{N=152;break b}case 93:break g;case 45:{r=n+1|0;o=a[r>>0]|0;switch(o<<24>>24){case 93:case 0:{o=45;break h}default:{}}n=a[n+-1>>0]|0;if((n&255)<(o&255)){n=n&255;do{n=n+1|0;a[I+n>>0]=s;o=a[r>>0]|0}while((n|0)<(o&255|0));n=r}else n=r;break}default:{}}while(0);a[I+((o&255)+1)>>0]=s;n=n+1|0}}while(0);r=u?v+1|0:31;s=(t|0)==1;t=(m|0)!=0;i:do if(s){if(t){f=Uj(r<<2)|0;if(!f){l=0;N=152;break b}}else f=x;c[J>>2]=0;c[C>>2]=0;l=0;j:while(1){q=(f|0)==0;do{k:while(1){o=c[L>>2]|0;if(o>>>0<(c[M>>2]|0)>>>0){c[L>>2]=o+1;o=d[o>>0]|0}else o=vi(e)|0;if(!(a[I+(o+1)>>0]|0))break j;a[y>>0]=o;switch(Fi(K,y,1,J)|0){case -1:{l=0;N=152;break b}case -2:break;default:break k}}if(!q){c[f+(l<<2)>>2]=c[K>>2];l=l+1|0}}while(!(t&(l|0)==(r|0)));l=r<<1|1;o=Xj(f,l<<2)|0;if(!o){l=0;N=152;break b}Q=r;r=l;f=o;l=Q}if(!(Gi(J)|0)){l=0;N=152;break b}else{q=l;l=0}}else{if(t){l=Uj(r)|0;if(!l){l=0;f=0;N=152;break b}else o=0;while(1){do{f=c[L>>2]|0;if(f>>>0<(c[M>>2]|0)>>>0){c[L>>2]=f+1;f=d[f>>0]|0}else f=vi(e)|0;if(!(a[I+(f+1)>>0]|0)){q=o;f=0;break i}a[l+o>>0]=f;o=o+1|0}while((o|0)!=(r|0));f=r<<1|1;o=Xj(l,f)|0;if(!o){f=0;N=152;break b}else{Q=r;r=f;l=o;o=Q}}}if(!x){l=q;while(1){f=c[L>>2]|0;if(f>>>0<l>>>0){c[L>>2]=f+1;f=d[f>>0]|0}else f=vi(e)|0;if(!(a[I+(f+1)>>0]|0)){q=0;l=0;f=0;break i}l=c[M>>2]|0}}else{l=0;while(1){f=c[L>>2]|0;if(f>>>0<q>>>0){c[L>>2]=f+1;f=d[f>>0]|0}else f=vi(e)|0;if(!(a[I+(f+1)>>0]|0)){q=l;l=x;f=0;break i}a[x+l>>0]=f;q=c[M>>2]|0;l=l+1|0}}}while(0);o=c[L>>2]|0;if(c[M>>2]|0){o=o+-1|0;c[L>>2]=o}o=o-(c[z>>2]|0)+(c[G>>2]|0)|0;if(!o)break b;if(!((o|0)==(v|0)|u^1))break b;do if(t)if(s){c[x>>2]=f;break}else{c[x>>2]=l;break}while(0);if(!u){if(f)c[f+(q<<2)>>2]=0;if(!l){l=0;break f}a[l+q>>0]=0}break}case 120:case 88:case 112:{o=16;N=134;break}case 111:{o=8;N=134;break}case 117:case 100:{o=10;N=134;break}case 105:{o=0;N=134;break}case 71:case 103:case 70:case 102:case 69:case 101:case 65:case 97:{p=+si(e,t,0);if((c[G>>2]|0)==((c[z>>2]|0)-(c[L>>2]|0)|0))break b;if(x)switch(t|0){case 0:{g[x>>2]=p;break f}case 1:{h[x>>3]=p;break f}case 2:{h[x>>3]=p;break f}default:break f}break}default:{}}while(0);l:do if((N|0)==134){N=0;o=ti(e,o,0,-1,-1)|0;if((c[G>>2]|0)==((c[z>>2]|0)-(c[L>>2]|0)|0))break b;if((x|0)!=0&(r|0)==112){c[x>>2]=o;break}if(x)switch(t|0){case -2:{a[x>>0]=o;break l}case -1:{b[x>>1]=o;break l}case 0:{c[x>>2]=o;break l}case 1:{c[x>>2]=o;break l}case 3:{Q=x;c[Q>>2]=o;c[Q+4>>2]=D;break l}default:break l}}while(0);k=((x|0)!=0&1)+k|0;o=(c[G>>2]|0)+w+(c[L>>2]|0)-(c[z>>2]|0)|0;break c}while(0);n=n+(m&1)|0;ui(e,0);m=c[L>>2]|0;if(m>>>0<(c[M>>2]|0)>>>0){c[L>>2]=m+1;m=d[m>>0]|0}else m=vi(e)|0;if((m|0)!=(d[n>>0]|0)){N=21;break b}o=s+1|0}else{while(1){m=n+1|0;if(!(pi(d[m>>0]|0)|0))break;else n=m}ui(e,0);do{m=c[L>>2]|0;if(m>>>0<(c[M>>2]|0)>>>0){c[L>>2]=m+1;m=d[m>>0]|0}else m=vi(e)|0}while((pi(m)|0)!=0);m=c[L>>2]|0;if(c[M>>2]|0){m=m+-1|0;c[L>>2]=m}o=(c[G>>2]|0)+s+m-(c[z>>2]|0)|0}while(0);n=n+1|0;m=a[n>>0]|0;if(!(m<<24>>24))break a;else s=o}if((N|0)==21){if(c[M>>2]|0)c[L>>2]=(c[L>>2]|0)+-1;if((k|0)!=0|(m|0)>-1)break;else{k=0;N=153}}else if((N|0)==152)if(!k){k=m;N=153}if((N|0)==153){m=k;k=-1}if(m){Vj(l);Vj(f)}}else k=0;while(0);if(O)Mi(e);i=P;return k|0}function oj(b,d,e,f){b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0,j=0,k=0,l=0,m=0,n=0;n=i;i=i+128|0;g=n+112|0;m=n;h=m;j=2684;k=h+112|0;do{c[h>>2]=c[j>>2];h=h+4|0;j=j+4|0}while((h|0)<(k|0));if((d+-1|0)>>>0>2147483646)if(!d){d=1;l=4}else{c[(qi()|0)>>2]=75;d=-1}else{g=b;l=4}if((l|0)==4){l=-2-g|0;l=d>>>0>l>>>0?l:d;c[m+48>>2]=l;b=m+20|0;c[b>>2]=g;c[m+44>>2]=g;d=g+l|0;g=m+16|0;c[g>>2]=d;c[m+28>>2]=d;d=mj(m,e,f)|0;if(l){e=c[b>>2]|0;a[e+(((e|0)==(c[g>>2]|0))<<31>>31)>>0]=0}}i=n;return d|0}function pj(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0;g=i;i=i+112|0;e=g;f=e;h=f+112|0;do{c[f>>2]=0;f=f+4|0}while((f|0)<(h|0));c[e+32>>2]=15;c[e+44>>2]=a;c[e+76>>2]=-1;c[e+84>>2]=a;h=nj(e,b,d)|0;i=g;return h|0}function qj(b){b=b|0;var c=0,d=0,e=0,f=0;while(1){c=b+1|0;if(!(pi(a[b>>0]|0)|0))break;else b=c}d=a[b>>0]|0;switch(d<<24>>24|0){case 45:{e=1;f=5;break}case 43:{e=0;f=5;break}default:e=0}if((f|0)==5){b=c;d=a[c>>0]|0}c=(d<<24>>24)+-48|0;if(c>>>0<10){d=b;b=0;do{d=d+1|0;b=(b*10|0)-c|0;c=(a[d>>0]|0)+-48|0}while(c>>>0<10)}else b=0;return ((e|0)!=0?b:0-b|0)|0}function rj(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0;r=i;i=i+208|0;o=r+8|0;p=r;f=$(d,b)|0;n=p;c[n>>2]=1;c[n+4>>2]=0;if(f){j=f-d|0;c[o+4>>2]=d;c[o>>2]=d;g=d;b=d;h=2;while(1){b=b+d+g|0;c[o+(h<<2)>>2]=b;if(b>>>0<f>>>0){n=g;g=b;h=h+1|0;b=n}else break}n=0-d|0;k=a+j|0;m=p+4|0;if((j|0)>0){j=k;f=1;h=1;while(1){do if((f&3|0)==3){Nj(a,d,e,h,o);l=c[m>>2]|0;b=l<<30|(c[p>>2]|0)>>>2;c[p>>2]=b;c[m>>2]=l>>>2;h=h+2|0}else{b=h+-1|0;if((c[o+(b<<2)>>2]|0)>>>0<(j-a|0)>>>0)Nj(a,d,e,h,o);else Oj(a,d,e,p,h,0,o);if((h|0)==1){b=c[p>>2]|0;c[m>>2]=b>>>31|c[m>>2]<<1;b=b<<1;c[p>>2]=b;h=0;break}if(b>>>0>31){f=c[p>>2]|0;c[m>>2]=f;c[p>>2]=0;b=h+-33|0;g=0}else{f=c[m>>2]|0;g=c[p>>2]|0}c[m>>2]=g>>>(32-b|0)|f<<b;b=g<<b;c[p>>2]=b;h=1}while(0);f=b|1;c[p>>2]=f;b=a+d|0;if(b>>>0>=k>>>0){f=b;break}else a=b}}else{f=a;h=1}Oj(f,d,e,p,h,0,o);l=p+4|0;b=c[p>>2]|0;if(!((h|0)==1&(b|0)==1&(c[l>>2]|0)==0)){g=f;while(1){if((h|0)<2){f=b+-1|0;do if(f){if(!(f&1)){j=f;f=0;do{f=f+1|0;j=j>>>1}while((j&1|0)==0);if(!f)q=24}else q=24;if((q|0)==24){q=0;k=c[m>>2]|0;if(!k){f=64;q=30;break}if(!(k&1)){j=k;f=0}else{a=0;j=k;f=0;break}while(1){a=f+1|0;j=j>>>1;if(j&1){j=a;break}else f=a}if(!j){a=0;j=k;f=0;break}else f=f+33|0}if(f>>>0>31)q=30;else{a=f;j=c[m>>2]|0}}else{f=32;q=30}while(0);if((q|0)==30){q=0;b=c[m>>2]|0;c[p>>2]=b;c[m>>2]=0;a=f+-32|0;j=0}c[p>>2]=j<<32-a|b>>>a;c[m>>2]=j>>>a;g=g+n|0;f=f+h|0}else{a=b>>>30;k=a|c[m>>2]<<2;f=h+-2|0;c[p>>2]=(b<<1&2147483646|a<<31)^3;c[m>>2]=k>>>1;Oj(g+(0-((c[o+(f<<2)>>2]|0)+d))|0,d,e,p,h+-1|0,1,o);k=c[p>>2]|0;c[m>>2]=k>>>31|c[m>>2]<<1;c[p>>2]=k<<1|1;g=g+n|0;Oj(g,d,e,p,f,1,o)}b=c[p>>2]|0;if((f|0)==1&(b|0)==1&(c[l>>2]|0)==0)break;else h=f}}}i=r;return}function sj(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,i=0;h=d&255;f=(e|0)!=0;a:do if(f&(b&3|0)!=0){g=d&255;while(1){if((a[b>>0]|0)==g<<24>>24){i=6;break a}b=b+1|0;e=e+-1|0;f=(e|0)!=0;if(!(f&(b&3|0)!=0)){i=5;break}}}else i=5;while(0);if((i|0)==5)if(f)i=6;else e=0;b:do if((i|0)==6){g=d&255;if((a[b>>0]|0)!=g<<24>>24){f=$(h,16843009)|0;c:do if(e>>>0>3)while(1){h=c[b>>2]^f;if((h&-2139062144^-2139062144)&h+-16843009)break;b=b+4|0;e=e+-4|0;if(e>>>0<=3){i=11;break c}}else i=11;while(0);if((i|0)==11)if(!e){e=0;break}while(1){if((a[b>>0]|0)==g<<24>>24)break b;b=b+1|0;e=e+-1|0;if(!e){e=0;break}}}}while(0);return ((e|0)!=0?b:0)|0}function tj(b,c,d){b=b|0;c=c|0;d=d|0;var e=0;e=c&255;do{if(!d){c=0;break}d=d+-1|0;c=b+d|0}while((a[c>>0]|0)!=e<<24>>24);return c|0}function uj(b,d){b=b|0;d=d|0;var e=0,f=0;e=d;a:do if(!((e^b)&3)){if(e&3)do{e=a[d>>0]|0;a[b>>0]=e;if(!(e<<24>>24))break a;d=d+1|0;b=b+1|0}while((d&3|0)!=0);e=c[d>>2]|0;if(!((e&-2139062144^-2139062144)&e+-16843009)){f=b;while(1){d=d+4|0;b=f+4|0;c[f>>2]=e;e=c[d>>2]|0;if((e&-2139062144^-2139062144)&e+-16843009)break;else f=b}}f=8}else f=8;while(0);if((f|0)==8){f=a[d>>0]|0;a[b>>0]=f;if(f<<24>>24)do{d=d+1|0;b=b+1|0;f=a[d>>0]|0;a[b>>0]=f}while(f<<24>>24!=0)}return b|0}function vj(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0;g=d;do if(!((g^b)&3)){f=(e|0)!=0;a:do if(f&(g&3|0)!=0)while(1){g=a[d>>0]|0;a[b>>0]=g;if(!(g<<24>>24))break a;e=e+-1|0;d=d+1|0;b=b+1|0;f=(e|0)!=0;if(!(f&(d&3|0)!=0)){h=5;break}}else h=5;while(0);if((h|0)==5)if(!f){e=0;break}if(a[d>>0]|0){b:do if(e>>>0>3)do{f=c[d>>2]|0;if((f&-2139062144^-2139062144)&f+-16843009)break b;c[b>>2]=f;e=e+-4|0;d=d+4|0;b=b+4|0}while(e>>>0>3);while(0);h=11}}else h=11;while(0);c:do if((h|0)==11)if(!e)e=0;else while(1){h=a[d>>0]|0;a[b>>0]=h;if(!(h<<24>>24))break c;e=e+-1|0;b=b+1|0;if(!e){e=0;break}else d=d+1|0}while(0);ek(b|0,0,e|0)|0;return b|0}function wj(b,c){b=b|0;c=c|0;b=xj(b,c)|0;return ((a[b>>0]|0)==(c&255)<<24>>24?b:0)|0}function xj(b,d){b=b|0;d=d|0;var e=0,f=0,g=0;f=d&255;a:do if(!f)b=b+(Bj(b)|0)|0;else{if(b&3){e=d&255;do{g=a[b>>0]|0;if(g<<24>>24==0?1:g<<24>>24==e<<24>>24)break a;b=b+1|0}while((b&3|0)!=0)}f=$(f,16843009)|0;e=c[b>>2]|0;b:do if(!((e&-2139062144^-2139062144)&e+-16843009))do{g=e^f;if((g&-2139062144^-2139062144)&g+-16843009)break b;b=b+4|0;e=c[b>>2]|0}while(((e&-2139062144^-2139062144)&e+-16843009|0)==0);while(0);e=d&255;while(1){g=a[b>>0]|0;if(g<<24>>24==0?1:g<<24>>24==e<<24>>24)break;else b=b+1|0}}while(0);return b|0}function yj(a,b){a=a|0;b=b|0;uj(a,b)|0;return a|0}function zj(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0;g=i;i=i+32|0;f=g;e=a[d>>0]|0;if(e<<24>>24!=0?(a[d+1>>0]|0)!=0:0){c[f>>2]=0;c[f+4>>2]=0;c[f+8>>2]=0;c[f+12>>2]=0;c[f+16>>2]=0;c[f+20>>2]=0;c[f+24>>2]=0;c[f+28>>2]=0;do{h=f+(((e&255)>>>5&255)<<2)|0;c[h>>2]=c[h>>2]|1<<(e&31);d=d+1|0;e=a[d>>0]|0}while(e<<24>>24!=0);d=a[b>>0]|0;a:do if(!(d<<24>>24))e=b;else{e=b;do{if(c[f+(((d&255)>>>5&255)<<2)>>2]&1<<(d&31))break a;e=e+1|0;d=a[e>>0]|0}while(d<<24>>24!=0)}while(0);e=e-b|0}else e=(xj(b,e<<24>>24)|0)-b|0;i=g;return e|0}function Aj(a){a=a|0;var b=0,c=0;c=(Bj(a)|0)+1|0;b=Uj(c)|0;if(!b)b=0;else ik(b|0,a|0,c|0)|0;return b|0}function Bj(b){b=b|0;var d=0,e=0,f=0;f=b;a:do if(!(f&3))e=4;else{d=b;b=f;while(1){if(!(a[d>>0]|0))break a;d=d+1|0;b=d;if(!(b&3)){b=d;e=4;break}}}while(0);if((e|0)==4){while(1){d=c[b>>2]|0;if(!((d&-2139062144^-2139062144)&d+-16843009))b=b+4|0;else break}if((d&255)<<24>>24)do b=b+1|0;while((a[b>>0]|0)!=0)}return b-f|0}function Cj(b,c,d){b=b|0;c=c|0;d=d|0;var e=0,f=0,g=0;e=b+(Bj(b)|0)|0;a:do if(d)while(1){f=a[c>>0]|0;if(!(f<<24>>24))break a;d=d+-1|0;g=e+1|0;a[e>>0]=f;if(!d){e=g;break}else{c=c+1|0;e=g}}while(0);a[e>>0]=0;return b|0}function Dj(a,b,c){a=a|0;b=b|0;c=c|0;vj(a,b,c)|0;return a|0}function Ej(a,b){a=a|0;b=b|0;return tj(a,b,(Bj(a)|0)+1|0)|0}function Fj(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0;h=i;i=i+32|0;g=h;c[g>>2]=0;c[g+4>>2]=0;c[g+8>>2]=0;c[g+12>>2]=0;c[g+16>>2]=0;c[g+20>>2]=0;c[g+24>>2]=0;c[g+28>>2]=0;f=a[d>>0]|0;do if(!(f<<24>>24))d=0;else{if(!(a[d+1>>0]|0)){d=b;while(1)if((a[d>>0]|0)==f<<24>>24)d=d+1|0;else break;d=d-b|0;break}else{e=d;d=f}do{f=g+(((d&255)>>>5&255)<<2)|0;c[f>>2]=c[f>>2]|1<<(d&31);e=e+1|0;d=a[e>>0]|0}while(d<<24>>24!=0);e=a[b>>0]|0;a:do if(!(e<<24>>24))d=b;else{d=b;do{if(!(c[g+(((e&255)>>>5&255)<<2)>>2]&1<<(e&31)))break a;d=d+1|0;e=a[d>>0]|0}while(e<<24>>24!=0)}while(0);d=d-b|0}while(0);i=h;return d|0}function Gj(b,d){b=b|0;d=d|0;var e=0,f=0;if(!b){b=c[699]|0;if(!b)b=0;else{f=b;e=3}}else{f=b;e=3}do if((e|0)==3){e=Fj(f,d)|0;b=f+e|0;if(!(a[b>>0]|0)){c[699]=0;b=0;break}e=(zj(b,d)|0)+e|0;d=f+e|0;c[699]=d;if(!(a[d>>0]|0)){c[699]=0;break}else{c[699]=f+(e+1);a[d>>0]=0;break}}while(0);return b|0}function Hj(a,b){a=a|0;b=b|0;var e=0,f=0,g=0,h=0,i=0,j=0;i=a+4|0;e=c[i>>2]|0;j=a+100|0;if(e>>>0<(c[j>>2]|0)>>>0){c[i>>2]=e+1;e=d[e>>0]|0}else e=vi(a)|0;switch(e|0){case 43:case 45:{f=(e|0)==45&1;e=c[i>>2]|0;if(e>>>0<(c[j>>2]|0)>>>0){c[i>>2]=e+1;e=d[e>>0]|0}else e=vi(a)|0;if((b|0)!=0&(e+-48|0)>>>0>9?(c[j>>2]|0)!=0:0){c[i>>2]=(c[i>>2]|0)+-1;h=f}else h=f;break}default:h=0}if((e+-48|0)>>>0>9)if(!(c[j>>2]|0)){f=-2147483648;e=0}else{c[i>>2]=(c[i>>2]|0)+-1;f=-2147483648;e=0}else{f=0;do{f=e+-48+(f*10|0)|0;e=c[i>>2]|0;if(e>>>0<(c[j>>2]|0)>>>0){c[i>>2]=e+1;e=d[e>>0]|0}else e=vi(a)|0}while((e+-48|0)>>>0<10&(f|0)<214748364);b=((f|0)<0)<<31>>31;if((e+-48|0)>>>0<10){do{b=ok(f|0,b|0,10,0)|0;f=D;e=gk(e|0,((e|0)<0)<<31>>31|0,-48,-1)|0;f=gk(e|0,D|0,b|0,f|0)|0;b=D;e=c[i>>2]|0;if(e>>>0<(c[j>>2]|0)>>>0){c[i>>2]=e+1;e=d[e>>0]|0}else e=vi(a)|0}while((e+-48|0)>>>0<10&((b|0)<21474836|(b|0)==21474836&f>>>0<2061584302));g=f}else g=f;if((e+-48|0)>>>0<10)do{e=c[i>>2]|0;if(e>>>0<(c[j>>2]|0)>>>0){c[i>>2]=e+1;e=d[e>>0]|0}else e=vi(a)|0}while((e+-48|0)>>>0<10);if(c[j>>2]|0)c[i>>2]=(c[i>>2]|0)+-1;a=(h|0)!=0;e=dk(0,0,g|0,b|0)|0;f=a?D:b;e=a?e:g}D=f;return e|0}function Ij(a){a=a|0;if(!(c[a+68>>2]|0))Mi(a);return}function Jj(a){a=a|0;if(!(c[a+68>>2]|0))Mi(a);return}function Kj(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0;b=a+20|0;g=a+28|0;if((c[b>>2]|0)>>>0>(c[g>>2]|0)>>>0?(Qb[c[a+36>>2]&15](a,0,0)|0,(c[b>>2]|0)==0):0)b=-1;else{h=a+4|0;d=c[h>>2]|0;e=a+8|0;f=c[e>>2]|0;if(d>>>0<f>>>0)Qb[c[a+40>>2]&15](a,d-f|0,1)|0;c[a+16>>2]=0;c[g>>2]=0;c[b>>2]=0;c[e>>2]=0;c[h>>2]=0;b=0}return b|0}function Lj(e,f,g,j,l){e=e|0;f=f|0;g=g|0;j=j|0;l=l|0;var m=0,n=0,o=0,p=0,q=0.0,r=0,s=0,t=0,u=0,v=0.0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0,N=0,O=0,P=0,Q=0,R=0,S=0,T=0,U=0,V=0,W=0,X=0,Y=0,Z=0,_=0,aa=0,ba=0,ca=0,da=0,ea=0,fa=0,ga=0,ha=0;ha=i;i=i+624|0;ca=ha+24|0;ea=ha+16|0;da=ha+588|0;Y=ha+576|0;ba=ha;V=ha+536|0;ga=ha+8|0;fa=ha+528|0;M=(e|0)!=0;N=V+40|0;U=N;V=V+39|0;W=ga+4|0;X=Y+12|0;Y=Y+11|0;Z=da;_=X;aa=_-Z|0;O=-2-Z|0;P=_+2|0;Q=ca+288|0;R=da+9|0;S=R;T=da+8|0;m=0;w=f;n=0;f=0;a:while(1){do if((m|0)>-1)if((n|0)>(2147483647-m|0)){c[(qi()|0)>>2]=75;m=-1;break}else{m=n+m|0;break}while(0);n=a[w>>0]|0;if(!(n<<24>>24)){L=245;break}else o=w;b:while(1){switch(n<<24>>24){case 37:{n=o;L=9;break b}case 0:{n=o;break b}default:{}}K=o+1|0;n=a[K>>0]|0;o=K}c:do if((L|0)==9)while(1){L=0;if((a[n+1>>0]|0)!=37)break c;o=o+1|0;n=n+2|0;if((a[n>>0]|0)==37)L=9;else break}while(0);y=o-w|0;if(M?(c[e>>2]&32|0)==0:0)hj(w,y,e)|0;if((o|0)!=(w|0)){w=n;n=y;continue}r=n+1|0;o=a[r>>0]|0;p=(o<<24>>24)+-48|0;if(p>>>0<10){K=(a[n+2>>0]|0)==36;r=K?n+3|0:r;o=a[r>>0]|0;u=K?p:-1;f=K?1:f}else u=-1;n=o<<24>>24;d:do if((n&-32|0)==32){p=0;while(1){if(!(1<<n+-32&75913)){s=p;n=r;break d}p=1<<(o<<24>>24)+-32|p;r=r+1|0;o=a[r>>0]|0;n=o<<24>>24;if((n&-32|0)!=32){s=p;n=r;break}}}else{s=0;n=r}while(0);do if(o<<24>>24==42){p=n+1|0;o=(a[p>>0]|0)+-48|0;if(o>>>0<10?(a[n+2>>0]|0)==36:0){c[l+(o<<2)>>2]=10;f=1;n=n+3|0;o=c[j+((a[p>>0]|0)+-48<<3)>>2]|0}else{if(f){m=-1;break a}if(!M){x=s;n=p;f=0;K=0;break}f=(c[g>>2]|0)+(4-1)&~(4-1);o=c[f>>2]|0;c[g>>2]=f+4;f=0;n=p}if((o|0)<0){x=s|8192;K=0-o|0}else{x=s;K=o}}else{p=(o<<24>>24)+-48|0;if(p>>>0<10){o=0;do{o=(o*10|0)+p|0;n=n+1|0;p=(a[n>>0]|0)+-48|0}while(p>>>0<10);if((o|0)<0){m=-1;break a}else{x=s;K=o}}else{x=s;K=0}}while(0);e:do if((a[n>>0]|0)==46){p=n+1|0;o=a[p>>0]|0;if(o<<24>>24!=42){r=(o<<24>>24)+-48|0;if(r>>>0<10){n=p;o=0}else{n=p;r=0;break}while(1){o=(o*10|0)+r|0;n=n+1|0;r=(a[n>>0]|0)+-48|0;if(r>>>0>=10){r=o;break e}}}p=n+2|0;o=(a[p>>0]|0)+-48|0;if(o>>>0<10?(a[n+3>>0]|0)==36:0){c[l+(o<<2)>>2]=10;n=n+4|0;r=c[j+((a[p>>0]|0)+-48<<3)>>2]|0;break}if(f){m=-1;break a}if(M){n=(c[g>>2]|0)+(4-1)&~(4-1);r=c[n>>2]|0;c[g>>2]=n+4;n=p}else{n=p;r=0}}else r=-1;while(0);t=0;while(1){o=(a[n>>0]|0)+-65|0;if(o>>>0>57){m=-1;break a}p=n+1|0;o=a[15953+(t*58|0)+o>>0]|0;s=o&255;if((s+-1|0)>>>0<8){n=p;t=s}else{J=p;break}}if(!(o<<24>>24)){m=-1;break}p=(u|0)>-1;do if(o<<24>>24==19)if(p){m=-1;break a}else L=52;else{if(p){c[l+(u<<2)>>2]=s;H=j+(u<<3)|0;I=c[H+4>>2]|0;L=ba;c[L>>2]=c[H>>2];c[L+4>>2]=I;L=52;break}if(!M){m=0;break a}Rj(ba,s,g)}while(0);if((L|0)==52?(L=0,!M):0){w=J;n=y;continue}u=a[n>>0]|0;u=(t|0)!=0&(u&15|0)==3?u&-33:u;p=x&-65537;I=(x&8192|0)==0?x:p;f:do switch(u|0){case 110:switch(t|0){case 0:{c[c[ba>>2]>>2]=m;w=J;n=y;continue a}case 1:{c[c[ba>>2]>>2]=m;w=J;n=y;continue a}case 2:{w=c[ba>>2]|0;c[w>>2]=m;c[w+4>>2]=((m|0)<0)<<31>>31;w=J;n=y;continue a}case 3:{b[c[ba>>2]>>1]=m;w=J;n=y;continue a}case 4:{a[c[ba>>2]>>0]=m;w=J;n=y;continue a}case 6:{c[c[ba>>2]>>2]=m;w=J;n=y;continue a}case 7:{w=c[ba>>2]|0;c[w>>2]=m;c[w+4>>2]=((m|0)<0)<<31>>31;w=J;n=y;continue a}default:{w=J;n=y;continue a}}case 112:{t=I|8;r=r>>>0>8?r:8;u=120;L=64;break}case 88:case 120:{t=I;L=64;break}case 111:{p=ba;o=c[p>>2]|0;p=c[p+4>>2]|0;if((o|0)==0&(p|0)==0)n=N;else{n=N;do{n=n+-1|0;a[n>>0]=o&7|48;o=hk(o|0,p|0,3)|0;p=D}while(!((o|0)==0&(p|0)==0))}if(!(I&8)){o=I;t=0;s=16433;L=77}else{t=U-n+1|0;o=I;r=(r|0)<(t|0)?t:r;t=0;s=16433;L=77}break}case 105:case 100:{o=ba;n=c[o>>2]|0;o=c[o+4>>2]|0;if((o|0)<0){n=dk(0,0,n|0,o|0)|0;o=D;p=ba;c[p>>2]=n;c[p+4>>2]=o;p=1;s=16433;L=76;break f}if(!(I&2048)){s=I&1;p=s;s=(s|0)==0?16433:16435;L=76}else{p=1;s=16434;L=76}break}case 117:{o=ba;n=c[o>>2]|0;o=c[o+4>>2]|0;p=0;s=16433;L=76;break}case 99:{a[V>>0]=c[ba>>2];w=V;o=1;t=0;u=16433;n=N;break}case 109:{n=ri(c[(qi()|0)>>2]|0)|0;L=82;break}case 115:{n=c[ba>>2]|0;n=(n|0)!=0?n:16443;L=82;break}case 67:{c[ga>>2]=c[ba>>2];c[W>>2]=0;c[ba>>2]=ga;r=-1;L=86;break}case 83:{if(!r){Tj(e,32,K,0,I);n=0;L=98}else L=86;break}case 65:case 71:case 70:case 69:case 97:case 103:case 102:case 101:{q=+h[ba>>3];c[ea>>2]=0;h[k>>3]=q;if((c[k+4>>2]|0)>=0)if(!(I&2048)){H=I&1;G=H;H=(H|0)==0?16451:16456}else{G=1;H=16453}else{q=-q;G=1;H=16450}h[k>>3]=q;F=c[k+4>>2]&2146435072;do if(F>>>0<2146435072|(F|0)==2146435072&0<0){v=+Ci(q,ea)*2.0;o=v!=0.0;if(o)c[ea>>2]=(c[ea>>2]|0)+-1;C=u|32;if((C|0)==97){w=u&32;y=(w|0)==0?H:H+9|0;x=G|2;n=12-r|0;do if(!(r>>>0>11|(n|0)==0)){q=8.0;do{n=n+-1|0;q=q*16.0}while((n|0)!=0);if((a[y>>0]|0)==45){q=-(q+(-v-q));break}else{q=v+q-q;break}}else q=v;while(0);o=c[ea>>2]|0;n=(o|0)<0?0-o|0:o;n=Sj(n,((n|0)<0)<<31>>31,X)|0;if((n|0)==(X|0)){a[Y>>0]=48;n=Y}a[n+-1>>0]=(o>>31&2)+43;t=n+-2|0;a[t>>0]=u+15;s=(r|0)<1;p=(I&8|0)==0;o=da;while(1){H=~~q;n=o+1|0;a[o>>0]=d[16417+H>>0]|w;q=(q-+(H|0))*16.0;do if((n-Z|0)==1){if(p&(s&q==0.0))break;a[n>>0]=46;n=o+2|0}while(0);if(!(q!=0.0))break;else o=n}r=(r|0)!=0&(O+n|0)<(r|0)?P+r-t|0:aa-t+n|0;p=r+x|0;Tj(e,32,K,p,I);if(!(c[e>>2]&32))hj(y,x,e)|0;Tj(e,48,K,p,I^65536);n=n-Z|0;if(!(c[e>>2]&32))hj(da,n,e)|0;o=_-t|0;Tj(e,48,r-(n+o)|0,0,0);if(!(c[e>>2]&32))hj(t,o,e)|0;Tj(e,32,K,p,I^8192);n=(p|0)<(K|0)?K:p;break}n=(r|0)<0?6:r;if(o){o=(c[ea>>2]|0)+-28|0;c[ea>>2]=o;q=v*268435456.0}else{q=v;o=c[ea>>2]|0}F=(o|0)<0?ca:Q;E=F;o=F;do{B=~~q>>>0;c[o>>2]=B;o=o+4|0;q=(q-+(B>>>0))*1.0e9}while(q!=0.0);p=o;o=c[ea>>2]|0;if((o|0)>0){s=F;while(1){t=(o|0)>29?29:o;r=p+-4|0;do if(r>>>0<s>>>0)r=s;else{o=0;do{B=fk(c[r>>2]|0,0,t|0)|0;B=gk(B|0,D|0,o|0,0)|0;o=D;A=qk(B|0,o|0,1e9,0)|0;c[r>>2]=A;o=pk(B|0,o|0,1e9,0)|0;r=r+-4|0}while(r>>>0>=s>>>0);if(!o){r=s;break}r=s+-4|0;c[r>>2]=o}while(0);while(1){if(p>>>0<=r>>>0)break;o=p+-4|0;if(!(c[o>>2]|0))p=o;else break}o=(c[ea>>2]|0)-t|0;c[ea>>2]=o;if((o|0)>0)s=r;else break}}else r=F;if((o|0)<0){y=((n+25|0)/9|0)+1|0;z=(C|0)==102;w=r;while(1){x=0-o|0;x=(x|0)>9?9:x;do if(w>>>0<p>>>0){o=(1<<x)+-1|0;s=1e9>>>x;r=0;t=w;do{B=c[t>>2]|0;c[t>>2]=(B>>>x)+r;r=$(B&o,s)|0;t=t+4|0}while(t>>>0<p>>>0);o=(c[w>>2]|0)==0?w+4|0:w;if(!r){r=o;break}c[p>>2]=r;r=o;p=p+4|0}else r=(c[w>>2]|0)==0?w+4|0:w;while(0);o=z?F:r;p=(p-o>>2|0)>(y|0)?o+(y<<2)|0:p;o=(c[ea>>2]|0)+x|0;c[ea>>2]=o;if((o|0)>=0){w=r;break}else w=r}}else w=r;do if(w>>>0<p>>>0){o=(E-w>>2)*9|0;s=c[w>>2]|0;if(s>>>0<10)break;else r=10;do{r=r*10|0;o=o+1|0}while(s>>>0>=r>>>0)}else o=0;while(0);A=(C|0)==103;B=(n|0)!=0;r=n-((C|0)!=102?o:0)+((B&A)<<31>>31)|0;if((r|0)<(((p-E>>2)*9|0)+-9|0)){t=r+9216|0;z=(t|0)/9|0;r=F+(z+-1023<<2)|0;t=((t|0)%9|0)+1|0;if((t|0)<9){s=10;do{s=s*10|0;t=t+1|0}while((t|0)!=9)}else s=10;x=c[r>>2]|0;y=(x>>>0)%(s>>>0)|0;if((y|0)==0?(F+(z+-1022<<2)|0)==(p|0):0)s=w;else L=163;do if((L|0)==163){L=0;v=(((x>>>0)/(s>>>0)|0)&1|0)==0?9007199254740992.0:9007199254740994.0;t=(s|0)/2|0;do if(y>>>0<t>>>0)q=.5;else{if((y|0)==(t|0)?(F+(z+-1022<<2)|0)==(p|0):0){q=1.0;break}q=1.5}while(0);do if(G){if((a[H>>0]|0)!=45)break;v=-v;q=-q}while(0);t=x-y|0;c[r>>2]=t;if(!(v+q!=v)){s=w;break}C=t+s|0;c[r>>2]=C;if(C>>>0>999999999){o=w;while(1){s=r+-4|0;c[r>>2]=0;if(s>>>0<o>>>0){o=o+-4|0;c[o>>2]=0}C=(c[s>>2]|0)+1|0;c[s>>2]=C;if(C>>>0>999999999)r=s;else{w=o;r=s;break}}}o=(E-w>>2)*9|0;t=c[w>>2]|0;if(t>>>0<10){s=w;break}else 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if((r|0)==(w|0)){p=o+1|0;if(!(c[e>>2]&32))hj(o,1,e)|0;if(s&(n|0)<1){o=p;break}if(c[e>>2]&32){o=p;break}hj(16485,1,e)|0;o=p}else{if(o>>>0<=da>>>0)break;do{o=o+-1|0;a[o>>0]=48}while(o>>>0>da>>>0)}while(0);p=S-o|0;if(!(c[e>>2]&32))hj(o,(n|0)>(p|0)?p:n,e)|0;n=n-p|0;r=r+4|0}while(r>>>0<t>>>0&(n|0)>-1)}Tj(e,48,n+18|0,18,0);if(c[e>>2]&32)break;hj(u,_-u|0,e)|0}while(0);Tj(e,32,K,y,I^8192);n=(y|0)<(K|0)?K:y}else{t=(u&32|0)!=0;s=q!=q|0.0!=0.0;o=s?0:G;r=o+3|0;Tj(e,32,K,r,p);n=c[e>>2]|0;if(!(n&32)){hj(H,o,e)|0;n=c[e>>2]|0}if(!(n&32))hj(s?(t?16477:16481):t?16469:16473,3,e)|0;Tj(e,32,K,r,I^8192);n=(r|0)<(K|0)?K:r}while(0);w=J;continue a}default:{p=I;o=r;t=0;u=16433;n=N}}while(0);g:do if((L|0)==64){p=ba;o=c[p>>2]|0;p=c[p+4>>2]|0;s=u&32;if(!((o|0)==0&(p|0)==0)){n=N;do{n=n+-1|0;a[n>>0]=d[16417+(o&15)>>0]|s;o=hk(o|0,p|0,4)|0;p=D}while(!((o|0)==0&(p|0)==0));L=ba;if((t&8|0)==0|(c[L>>2]|0)==0&(c[L+4>>2]|0)==0){o=t;t=0;s=16433;L=77}else{o=t;t=2;s=16433+(u>>4)|0;L=77}}else{n=N;o=t;t=0;s=16433;L=77}}else if((L|0)==76){n=Sj(n,o,N)|0;o=I;t=p;L=77}else if((L|0)==82){L=0;I=sj(n,0,r)|0;H=(I|0)==0;w=n;o=H?r:I-n|0;t=0;u=16433;n=H?n+r|0:I}else if((L|0)==86){L=0;o=0;n=0;s=c[ba>>2]|0;while(1){p=c[s>>2]|0;if(!p)break;n=Ii(fa,p)|0;if((n|0)<0|n>>>0>(r-o|0)>>>0)break;o=n+o|0;if(r>>>0>o>>>0)s=s+4|0;else break}if((n|0)<0){m=-1;break a}Tj(e,32,K,o,I);if(!o){n=0;L=98}else{p=0;r=c[ba>>2]|0;while(1){n=c[r>>2]|0;if(!n){n=o;L=98;break g}n=Ii(fa,n)|0;p=n+p|0;if((p|0)>(o|0)){n=o;L=98;break g}if(!(c[e>>2]&32))hj(fa,n,e)|0;if(p>>>0>=o>>>0){n=o;L=98;break}else r=r+4|0}}}while(0);if((L|0)==98){L=0;Tj(e,32,K,n,I^8192);w=J;n=(K|0)>(n|0)?K:n;continue}if((L|0)==77){L=0;p=(r|0)>-1?o&-65537:o;o=ba;o=(c[o>>2]|0)!=0|(c[o+4>>2]|0)!=0;if((r|0)!=0|o){o=(o&1^1)+(U-n)|0;w=n;o=(r|0)>(o|0)?r:o;u=s;n=N}else{w=N;o=0;u=s;n=N}}s=n-w|0;o=(o|0)<(s|0)?s:o;r=t+o|0;n=(K|0)<(r|0)?r:K;Tj(e,32,n,r,p);if(!(c[e>>2]&32))hj(u,t,e)|0;Tj(e,48,n,r,p^65536);Tj(e,48,o,s,0);if(!(c[e>>2]&32))hj(w,s,e)|0;Tj(e,32,n,r,p^8192);w=J}h:do 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if((e|0)!=0|(k|0)!=1?(j=a+(0-(c[h+(f<<2)>>2]|0))|0,(cc[d&15](j,a)|0)>=1):0){g=(g|0)==0;n=j;l=k;m=e;j=1;while(1){if(g&(f|0)>1){e=c[h+(f+-2<<2)>>2]|0;if((cc[d&15](a+o|0,n)|0)>-1){g=f;e=j;q=20;break a}if((cc[d&15](a+(0-(e+b))|0,n)|0)>-1){g=f;e=j;q=20;break a}}e=j+1|0;c[p+(j<<2)>>2]=n;g=l+-1|0;do if(g){if(!(g&1)){a=g;g=0;do{g=g+1|0;a=a>>>1}while((a&1|0)==0);if(!g)q=11}else q=11;if((q|0)==11){q=0;if(!m){g=64;q=16;break}if(!(m&1)){a=m;g=0}else{k=0;a=l;j=m;g=0;break}while(1){j=g+1|0;a=a>>>1;if(a&1){a=j;break}else g=j}if(!a){k=0;a=l;j=m;g=0;break}else g=g+33|0}if(g>>>0>31)q=16;else{k=g;a=l;j=m}}else{g=32;q=16}while(0);if((q|0)==16){q=0;k=g+-32|0;a=m;j=0}l=j<<32-k|a>>>k;m=j>>>k;g=g+f|0;if(!((m|0)!=0|(l|0)!=1)){a=n;q=20;break a}a=n+(0-(c[h+(g<<2)>>2]|0))|0;if((cc[d&15](a,c[p>>2]|0)|0)<1){a=n;f=g;g=0;q=19;break}else{k=n;f=g;g=1;n=a;j=e;a=k}}}else{e=1;q=19}while(0);if((q|0)==19?(g|0)==0:0){g=f;q=20}if((q|0)==20){Pj(b,p,e);Nj(a,b,d,g,h)}i=r;return}function Pj(a,b,d){a=a|0;b=b|0;d=d|0;var 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13:{f=(c[d>>2]|0)+(4-1)&~(4-1);e=c[f>>2]|0;c[d>>2]=f+4;e=(e&65535)<<16>>16;f=a;c[f>>2]=e;c[f+4>>2]=((e|0)<0)<<31>>31;break a}case 14:{f=(c[d>>2]|0)+(4-1)&~(4-1);e=c[f>>2]|0;c[d>>2]=f+4;f=a;c[f>>2]=e&65535;c[f+4>>2]=0;break a}case 15:{f=(c[d>>2]|0)+(4-1)&~(4-1);e=c[f>>2]|0;c[d>>2]=f+4;e=(e&255)<<24>>24;f=a;c[f>>2]=e;c[f+4>>2]=((e|0)<0)<<31>>31;break a}case 16:{f=(c[d>>2]|0)+(4-1)&~(4-1);e=c[f>>2]|0;c[d>>2]=f+4;f=a;c[f>>2]=e&255;c[f+4>>2]=0;break a}case 17:{f=(c[d>>2]|0)+(8-1)&~(8-1);g=+h[f>>3];c[d>>2]=f+8;h[a>>3]=g;break a}case 18:{f=(c[d>>2]|0)+(8-1)&~(8-1);g=+h[f>>3];c[d>>2]=f+8;h[a>>3]=g;break a}default:break a}while(0);while(0);return}function Sj(b,c,d){b=b|0;c=c|0;d=d|0;var e=0;if(c>>>0>0|(c|0)==0&b>>>0>4294967295)while(1){e=qk(b|0,c|0,10,0)|0;d=d+-1|0;a[d>>0]=e|48;e=pk(b|0,c|0,10,0)|0;if(c>>>0>9|(c|0)==9&b>>>0>4294967295){b=e;c=D}else{b=e;break}}if(b)while(1){d=d+-1|0;a[d>>0]=(b>>>0)%10|0|48;if(b>>>0<10)break;else b=(b>>>0)/10|0}return d|0}function Tj(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0,j=0;j=i;i=i+256|0;h=j;do if((d|0)>(e|0)&(f&73728|0)==0){f=d-e|0;ek(h|0,b|0,(f>>>0>256?256:f)|0)|0;b=c[a>>2]|0;g=(b&32|0)==0;if(f>>>0>255){e=d-e|0;do{if(g){hj(h,256,a)|0;b=c[a>>2]|0}f=f+-256|0;g=(b&32|0)==0}while(f>>>0>255);if(g)f=e&255;else break}else if(!g)break;hj(h,f,a)|0}while(0);i=j;return}function Uj(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0;do if(a>>>0<245){o=a>>>0<11?16:a+11&-8;a=o>>>3;i=c[756]|0;d=i>>>a;if(d&3){a=(d&1^1)+a|0;e=a<<1;d=3064+(e<<2)|0;e=3064+(e+2<<2)|0;f=c[e>>2]|0;g=f+8|0;h=c[g>>2]|0;do if((d|0)!=(h|0)){if(h>>>0<(c[760]|0)>>>0)Da();b=h+12|0;if((c[b>>2]|0)==(f|0)){c[b>>2]=d;c[e>>2]=h;break}else Da()}else c[756]=i&~(1<<a);while(0);M=a<<3;c[f+4>>2]=M|3;M=f+(M|4)|0;c[M>>2]=c[M>>2]|1;M=g;return M|0}h=c[758]|0;if(o>>>0>h>>>0){if(d){e=2<<a;e=d<<a&(e|0-e);e=(e&0-e)+-1|0;j=e>>>12&16;e=e>>>j;f=e>>>5&8;e=e>>>f;g=e>>>2&4;e=e>>>g;d=e>>>1&2;e=e>>>d;a=e>>>1&1;a=(f|j|g|d|a)+(e>>>a)|0;e=a<<1;d=3064+(e<<2)|0;e=3064+(e+2<<2)|0;g=c[e>>2]|0;j=g+8|0;f=c[j>>2]|0;do if((d|0)!=(f|0)){if(f>>>0<(c[760]|0)>>>0)Da();b=f+12|0;if((c[b>>2]|0)==(g|0)){c[b>>2]=d;c[e>>2]=f;k=c[758]|0;break}else Da()}else{c[756]=i&~(1<<a);k=h}while(0);M=a<<3;h=M-o|0;c[g+4>>2]=o|3;i=g+o|0;c[g+(o|4)>>2]=h|1;c[g+M>>2]=h;if(k){f=c[761]|0;d=k>>>3;b=d<<1;e=3064+(b<<2)|0;a=c[756]|0;d=1<<d;if(a&d){a=3064+(b+2<<2)|0;b=c[a>>2]|0;if(b>>>0<(c[760]|0)>>>0)Da();else{l=a;m=b}}else{c[756]=a|d;l=3064+(b+2<<2)|0;m=e}c[l>>2]=f;c[m+12>>2]=f;c[f+8>>2]=m;c[f+12>>2]=e}c[758]=h;c[761]=i;M=j;return M|0}a=c[757]|0;if(a){d=(a&0-a)+-1|0;L=d>>>12&16;d=d>>>L;K=d>>>5&8;d=d>>>K;M=d>>>2&4;d=d>>>M;a=d>>>1&2;d=d>>>a;e=d>>>1&1;e=c[3328+((K|L|M|a|e)+(d>>>e)<<2)>>2]|0;d=(c[e+4>>2]&-8)-o|0;a=e;while(1){b=c[a+16>>2]|0;if(!b){b=c[a+20>>2]|0;if(!b){j=d;break}}a=(c[b+4>>2]&-8)-o|0;M=a>>>0<d>>>0;d=M?a:d;a=b;e=M?b:e}g=c[760]|0;if(e>>>0<g>>>0)Da();i=e+o|0;if(e>>>0>=i>>>0)Da();h=c[e+24>>2]|0;d=c[e+12>>2]|0;do if((d|0)==(e|0)){a=e+20|0;b=c[a>>2]|0;if(!b){a=e+16|0;b=c[a>>2]|0;if(!b){n=0;break}}while(1){d=b+20|0;f=c[d>>2]|0;if(f){b=f;a=d;continue}d=b+16|0;f=c[d>>2]|0;if(!f)break;else{b=f;a=d}}if(a>>>0<g>>>0)Da();else{c[a>>2]=0;n=b;break}}else{f=c[e+8>>2]|0;if(f>>>0<g>>>0)Da();b=f+12|0;if((c[b>>2]|0)!=(e|0))Da();a=d+8|0;if((c[a>>2]|0)==(e|0)){c[b>>2]=d;c[a>>2]=f;n=d;break}else Da()}while(0);do if(h){b=c[e+28>>2]|0;a=3328+(b<<2)|0;if((e|0)==(c[a>>2]|0)){c[a>>2]=n;if(!n){c[757]=c[757]&~(1<<b);break}}else{if(h>>>0<(c[760]|0)>>>0)Da();b=h+16|0;if((c[b>>2]|0)==(e|0))c[b>>2]=n;else c[h+20>>2]=n;if(!n)break}a=c[760]|0;if(n>>>0<a>>>0)Da();c[n+24>>2]=h;b=c[e+16>>2]|0;do if(b)if(b>>>0<a>>>0)Da();else{c[n+16>>2]=b;c[b+24>>2]=n;break}while(0);b=c[e+20>>2]|0;if(b)if(b>>>0<(c[760]|0)>>>0)Da();else{c[n+20>>2]=b;c[b+24>>2]=n;break}}while(0);if(j>>>0<16){M=j+o|0;c[e+4>>2]=M|3;M=e+(M+4)|0;c[M>>2]=c[M>>2]|1}else{c[e+4>>2]=o|3;c[e+(o|4)>>2]=j|1;c[e+(j+o)>>2]=j;b=c[758]|0;if(b){g=c[761]|0;d=b>>>3;b=d<<1;f=3064+(b<<2)|0;a=c[756]|0;d=1<<d;if(a&d){b=3064+(b+2<<2)|0;a=c[b>>2]|0;if(a>>>0<(c[760]|0)>>>0)Da();else{p=b;q=a}}else{c[756]=a|d;p=3064+(b+2<<2)|0;q=f}c[p>>2]=g;c[q+12>>2]=g;c[g+8>>2]=q;c[g+12>>2]=f}c[758]=j;c[761]=i}M=e+8|0;return M|0}else q=o}else q=o}else if(a>>>0<=4294967231){a=a+11|0;m=a&-8;l=c[757]|0;if(l){d=0-m|0;a=a>>>8;if(a)if(m>>>0>16777215)k=31;else{q=(a+1048320|0)>>>16&8;v=a<<q;p=(v+520192|0)>>>16&4;v=v<<p;k=(v+245760|0)>>>16&2;k=14-(p|q|k)+(v<<k>>>15)|0;k=m>>>(k+7|0)&1|k<<1}else k=0;a=c[3328+(k<<2)>>2]|0;a:do if(!a){f=0;a=0;v=86}else{h=d;f=0;i=m<<((k|0)==31?0:25-(k>>>1)|0);j=a;a=0;while(1){g=c[j+4>>2]&-8;d=g-m|0;if(d>>>0<h>>>0)if((g|0)==(m|0)){g=j;a=j;v=90;break a}else a=j;else d=h;v=c[j+20>>2]|0;j=c[j+16+(i>>>31<<2)>>2]|0;f=(v|0)==0|(v|0)==(j|0)?f:v;if(!j){v=86;break}else{h=d;i=i<<1}}}while(0);if((v|0)==86){if((f|0)==0&(a|0)==0){a=2<<k;a=l&(a|0-a);if(!a){q=m;break}a=(a&0-a)+-1|0;n=a>>>12&16;a=a>>>n;l=a>>>5&8;a=a>>>l;p=a>>>2&4;a=a>>>p;q=a>>>1&2;a=a>>>q;f=a>>>1&1;f=c[3328+((l|n|p|q|f)+(a>>>f)<<2)>>2]|0;a=0}if(!f){i=d;j=a}else{g=f;v=90}}if((v|0)==90)while(1){v=0;q=(c[g+4>>2]&-8)-m|0;f=q>>>0<d>>>0;d=f?q:d;a=f?g:a;f=c[g+16>>2]|0;if(f){g=f;v=90;continue}g=c[g+20>>2]|0;if(!g){i=d;j=a;break}else v=90}if((j|0)!=0?i>>>0<((c[758]|0)-m|0)>>>0:0){f=c[760]|0;if(j>>>0<f>>>0)Da();h=j+m|0;if(j>>>0>=h>>>0)Da();g=c[j+24>>2]|0;d=c[j+12>>2]|0;do if((d|0)==(j|0)){a=j+20|0;b=c[a>>2]|0;if(!b){a=j+16|0;b=c[a>>2]|0;if(!b){o=0;break}}while(1){d=b+20|0;e=c[d>>2]|0;if(e){b=e;a=d;continue}d=b+16|0;e=c[d>>2]|0;if(!e)break;else{b=e;a=d}}if(a>>>0<f>>>0)Da();else{c[a>>2]=0;o=b;break}}else{e=c[j+8>>2]|0;if(e>>>0<f>>>0)Da();b=e+12|0;if((c[b>>2]|0)!=(j|0))Da();a=d+8|0;if((c[a>>2]|0)==(j|0)){c[b>>2]=d;c[a>>2]=e;o=d;break}else Da()}while(0);do if(g){b=c[j+28>>2]|0;a=3328+(b<<2)|0;if((j|0)==(c[a>>2]|0)){c[a>>2]=o;if(!o){c[757]=c[757]&~(1<<b);break}}else{if(g>>>0<(c[760]|0)>>>0)Da();b=g+16|0;if((c[b>>2]|0)==(j|0))c[b>>2]=o;else c[g+20>>2]=o;if(!o)break}a=c[760]|0;if(o>>>0<a>>>0)Da();c[o+24>>2]=g;b=c[j+16>>2]|0;do if(b)if(b>>>0<a>>>0)Da();else{c[o+16>>2]=b;c[b+24>>2]=o;break}while(0);b=c[j+20>>2]|0;if(b)if(b>>>0<(c[760]|0)>>>0)Da();else{c[o+20>>2]=b;c[b+24>>2]=o;break}}while(0);b:do if(i>>>0>=16){c[j+4>>2]=m|3;c[j+(m|4)>>2]=i|1;c[j+(i+m)>>2]=i;b=i>>>3;if(i>>>0<256){a=b<<1;e=3064+(a<<2)|0;d=c[756]|0;b=1<<b;if(d&b){b=3064+(a+2<<2)|0;a=c[b>>2]|0;if(a>>>0<(c[760]|0)>>>0)Da();else{s=b;t=a}}else{c[756]=d|b;s=3064+(a+2<<2)|0;t=e}c[s>>2]=h;c[t+12>>2]=h;c[j+(m+8)>>2]=t;c[j+(m+12)>>2]=e;break}b=i>>>8;if(b)if(i>>>0>16777215)e=31;else{L=(b+1048320|0)>>>16&8;M=b<<L;K=(M+520192|0)>>>16&4;M=M<<K;e=(M+245760|0)>>>16&2;e=14-(K|L|e)+(M<<e>>>15)|0;e=i>>>(e+7|0)&1|e<<1}else e=0;b=3328+(e<<2)|0;c[j+(m+28)>>2]=e;c[j+(m+20)>>2]=0;c[j+(m+16)>>2]=0;a=c[757]|0;d=1<<e;if(!(a&d)){c[757]=a|d;c[b>>2]=h;c[j+(m+24)>>2]=b;c[j+(m+12)>>2]=h;c[j+(m+8)>>2]=h;break}b=c[b>>2]|0;c:do if((c[b+4>>2]&-8|0)!=(i|0)){e=i<<((e|0)==31?0:25-(e>>>1)|0);while(1){a=b+16+(e>>>31<<2)|0;d=c[a>>2]|0;if(!d)break;if((c[d+4>>2]&-8|0)==(i|0)){y=d;break c}else{e=e<<1;b=d}}if(a>>>0<(c[760]|0)>>>0)Da();else{c[a>>2]=h;c[j+(m+24)>>2]=b;c[j+(m+12)>>2]=h;c[j+(m+8)>>2]=h;break b}}else y=b;while(0);b=y+8|0;a=c[b>>2]|0;M=c[760]|0;if(a>>>0>=M>>>0&y>>>0>=M>>>0){c[a+12>>2]=h;c[b>>2]=h;c[j+(m+8)>>2]=a;c[j+(m+12)>>2]=y;c[j+(m+24)>>2]=0;break}else Da()}else{M=i+m|0;c[j+4>>2]=M|3;M=j+(M+4)|0;c[M>>2]=c[M>>2]|1}while(0);M=j+8|0;return M|0}else q=m}else q=m}else q=-1;while(0);d=c[758]|0;if(d>>>0>=q>>>0){b=d-q|0;a=c[761]|0;if(b>>>0>15){c[761]=a+q;c[758]=b;c[a+(q+4)>>2]=b|1;c[a+d>>2]=b;c[a+4>>2]=q|3}else{c[758]=0;c[761]=0;c[a+4>>2]=d|3;M=a+(d+4)|0;c[M>>2]=c[M>>2]|1}M=a+8|0;return M|0}a=c[759]|0;if(a>>>0>q>>>0){L=a-q|0;c[759]=L;M=c[762]|0;c[762]=M+q;c[M+(q+4)>>2]=L|1;c[M+4>>2]=q|3;M=M+8|0;return M|0}do if(!(c[874]|0)){a=$a(30)|0;if(!(a+-1&a)){c[876]=a;c[875]=a;c[877]=-1;c[878]=-1;c[879]=0;c[867]=0;c[874]=(Db(0)|0)&-16^1431655768;break}else Da()}while(0);j=q+48|0;i=c[876]|0;k=q+47|0;h=i+k|0;i=0-i|0;l=h&i;if(l>>>0<=q>>>0){M=0;return M|0}a=c[866]|0;if((a|0)!=0?(t=c[864]|0,y=t+l|0,y>>>0<=t>>>0|y>>>0>a>>>0):0){M=0;return M|0}d:do if(!(c[867]&4)){a=c[762]|0;e:do if(a){f=3472;while(1){d=c[f>>2]|0;if(d>>>0<=a>>>0?(r=f+4|0,(d+(c[r>>2]|0)|0)>>>0>a>>>0):0){g=f;a=r;break}f=c[f+8>>2]|0;if(!f){v=174;break e}}d=h-(c[759]|0)&i;if(d>>>0<2147483647){f=Ua(d|0)|0;y=(f|0)==((c[g>>2]|0)+(c[a>>2]|0)|0);a=y?d:0;if(y){if((f|0)!=(-1|0)){w=f;p=a;v=194;break d}}else v=184}else a=0}else v=174;while(0);do if((v|0)==174){g=Ua(0)|0;if((g|0)!=(-1|0)){a=g;d=c[875]|0;f=d+-1|0;if(!(f&a))d=l;else d=l-a+(f+a&0-d)|0;a=c[864]|0;f=a+d|0;if(d>>>0>q>>>0&d>>>0<2147483647){y=c[866]|0;if((y|0)!=0?f>>>0<=a>>>0|f>>>0>y>>>0:0){a=0;break}f=Ua(d|0)|0;y=(f|0)==(g|0);a=y?d:0;if(y){w=g;p=a;v=194;break d}else v=184}else a=0}else a=0}while(0);f:do if((v|0)==184){g=0-d|0;do if(j>>>0>d>>>0&(d>>>0<2147483647&(f|0)!=(-1|0))?(u=c[876]|0,u=k-d+u&0-u,u>>>0<2147483647):0)if((Ua(u|0)|0)==(-1|0)){Ua(g|0)|0;break f}else{d=u+d|0;break}while(0);if((f|0)!=(-1|0)){w=f;p=d;v=194;break d}}while(0);c[867]=c[867]|4;v=191}else{a=0;v=191}while(0);if((((v|0)==191?l>>>0<2147483647:0)?(w=Ua(l|0)|0,x=Ua(0)|0,w>>>0<x>>>0&((w|0)!=(-1|0)&(x|0)!=(-1|0))):0)?(z=x-w|0,A=z>>>0>(q+40|0)>>>0,A):0){p=A?z:a;v=194}if((v|0)==194){a=(c[864]|0)+p|0;c[864]=a;if(a>>>0>(c[865]|0)>>>0)c[865]=a;h=c[762]|0;g:do if(h){g=3472;do{a=c[g>>2]|0;d=g+4|0;f=c[d>>2]|0;if((w|0)==(a+f|0)){B=a;C=d;D=f;E=g;v=204;break}g=c[g+8>>2]|0}while((g|0)!=0);if(((v|0)==204?(c[E+12>>2]&8|0)==0:0)?h>>>0<w>>>0&h>>>0>=B>>>0:0){c[C>>2]=D+p;M=(c[759]|0)+p|0;L=h+8|0;L=(L&7|0)==0?0:0-L&7;K=M-L|0;c[762]=h+L;c[759]=K;c[h+(L+4)>>2]=K|1;c[h+(M+4)>>2]=40;c[763]=c[878];break}a=c[760]|0;if(w>>>0<a>>>0){c[760]=w;a=w}d=w+p|0;g=3472;while(1){if((c[g>>2]|0)==(d|0)){f=g;d=g;v=212;break}g=c[g+8>>2]|0;if(!g){d=3472;break}}if((v|0)==212)if(!(c[d+12>>2]&8)){c[f>>2]=w;n=d+4|0;c[n>>2]=(c[n>>2]|0)+p;n=w+8|0;n=(n&7|0)==0?0:0-n&7;k=w+(p+8)|0;k=(k&7|0)==0?0:0-k&7;b=w+(k+p)|0;m=n+q|0;o=w+m|0;l=b-(w+n)-q|0;c[w+(n+4)>>2]=q|3;h:do if((b|0)!=(h|0)){if((b|0)==(c[761]|0)){M=(c[758]|0)+l|0;c[758]=M;c[761]=o;c[w+(m+4)>>2]=M|1;c[w+(M+m)>>2]=M;break}i=p+4|0;d=c[w+(i+k)>>2]|0;if((d&3|0)==1){j=d&-8;g=d>>>3;i:do if(d>>>0>=256){h=c[w+((k|24)+p)>>2]|0;e=c[w+(p+12+k)>>2]|0;do if((e|0)==(b|0)){f=k|16;e=w+(i+f)|0;d=c[e>>2]|0;if(!d){e=w+(f+p)|0;d=c[e>>2]|0;if(!d){J=0;break}}while(1){f=d+20|0;g=c[f>>2]|0;if(g){d=g;e=f;continue}f=d+16|0;g=c[f>>2]|0;if(!g)break;else{d=g;e=f}}if(e>>>0<a>>>0)Da();else{c[e>>2]=0;J=d;break}}else{f=c[w+((k|8)+p)>>2]|0;if(f>>>0<a>>>0)Da();a=f+12|0;if((c[a>>2]|0)!=(b|0))Da();d=e+8|0;if((c[d>>2]|0)==(b|0)){c[a>>2]=e;c[d>>2]=f;J=e;break}else Da()}while(0);if(!h)break;a=c[w+(p+28+k)>>2]|0;d=3328+(a<<2)|0;do if((b|0)!=(c[d>>2]|0)){if(h>>>0<(c[760]|0)>>>0)Da();a=h+16|0;if((c[a>>2]|0)==(b|0))c[a>>2]=J;else c[h+20>>2]=J;if(!J)break i}else{c[d>>2]=J;if(J)break;c[757]=c[757]&~(1<<a);break i}while(0);d=c[760]|0;if(J>>>0<d>>>0)Da();c[J+24>>2]=h;b=k|16;a=c[w+(b+p)>>2]|0;do if(a)if(a>>>0<d>>>0)Da();else{c[J+16>>2]=a;c[a+24>>2]=J;break}while(0);b=c[w+(i+b)>>2]|0;if(!b)break;if(b>>>0<(c[760]|0)>>>0)Da();else{c[J+20>>2]=b;c[b+24>>2]=J;break}}else{e=c[w+((k|8)+p)>>2]|0;f=c[w+(p+12+k)>>2]|0;d=3064+(g<<1<<2)|0;do if((e|0)!=(d|0)){if(e>>>0<a>>>0)Da();if((c[e+12>>2]|0)==(b|0))break;Da()}while(0);if((f|0)==(e|0)){c[756]=c[756]&~(1<<g);break}do if((f|0)==(d|0))F=f+8|0;else{if(f>>>0<a>>>0)Da();a=f+8|0;if((c[a>>2]|0)==(b|0)){F=a;break}Da()}while(0);c[e+12>>2]=f;c[F>>2]=e}while(0);b=w+((j|k)+p)|0;f=j+l|0}else f=l;b=b+4|0;c[b>>2]=c[b>>2]&-2;c[w+(m+4)>>2]=f|1;c[w+(f+m)>>2]=f;b=f>>>3;if(f>>>0<256){a=b<<1;e=3064+(a<<2)|0;d=c[756]|0;b=1<<b;do if(!(d&b)){c[756]=d|b;K=3064+(a+2<<2)|0;L=e}else{b=3064+(a+2<<2)|0;a=c[b>>2]|0;if(a>>>0>=(c[760]|0)>>>0){K=b;L=a;break}Da()}while(0);c[K>>2]=o;c[L+12>>2]=o;c[w+(m+8)>>2]=L;c[w+(m+12)>>2]=e;break}b=f>>>8;do if(!b)e=0;else{if(f>>>0>16777215){e=31;break}K=(b+1048320|0)>>>16&8;L=b<<K;J=(L+520192|0)>>>16&4;L=L<<J;e=(L+245760|0)>>>16&2;e=14-(J|K|e)+(L<<e>>>15)|0;e=f>>>(e+7|0)&1|e<<1}while(0);b=3328+(e<<2)|0;c[w+(m+28)>>2]=e;c[w+(m+20)>>2]=0;c[w+(m+16)>>2]=0;a=c[757]|0;d=1<<e;if(!(a&d)){c[757]=a|d;c[b>>2]=o;c[w+(m+24)>>2]=b;c[w+(m+12)>>2]=o;c[w+(m+8)>>2]=o;break}b=c[b>>2]|0;j:do if((c[b+4>>2]&-8|0)!=(f|0)){e=f<<((e|0)==31?0:25-(e>>>1)|0);while(1){a=b+16+(e>>>31<<2)|0;d=c[a>>2]|0;if(!d)break;if((c[d+4>>2]&-8|0)==(f|0)){M=d;break j}else{e=e<<1;b=d}}if(a>>>0<(c[760]|0)>>>0)Da();else{c[a>>2]=o;c[w+(m+24)>>2]=b;c[w+(m+12)>>2]=o;c[w+(m+8)>>2]=o;break h}}else M=b;while(0);b=M+8|0;a=c[b>>2]|0;L=c[760]|0;if(a>>>0>=L>>>0&M>>>0>=L>>>0){c[a+12>>2]=o;c[b>>2]=o;c[w+(m+8)>>2]=a;c[w+(m+12)>>2]=M;c[w+(m+24)>>2]=0;break}else Da()}else{M=(c[759]|0)+l|0;c[759]=M;c[762]=o;c[w+(m+4)>>2]=M|1}while(0);M=w+(n|8)|0;return M|0}else d=3472;while(1){a=c[d>>2]|0;if(a>>>0<=h>>>0?(b=c[d+4>>2]|0,e=a+b|0,e>>>0>h>>>0):0)break;d=c[d+8>>2]|0}f=a+(b+-39)|0;a=a+(b+-47+((f&7|0)==0?0:0-f&7))|0;f=h+16|0;a=a>>>0<f>>>0?h:a;b=a+8|0;d=w+8|0;d=(d&7|0)==0?0:0-d&7;M=p+-40-d|0;c[762]=w+d;c[759]=M;c[w+(d+4)>>2]=M|1;c[w+(p+-36)>>2]=40;c[763]=c[878];d=a+4|0;c[d>>2]=27;c[b>>2]=c[868];c[b+4>>2]=c[869];c[b+8>>2]=c[870];c[b+12>>2]=c[871];c[868]=w;c[869]=p;c[871]=0;c[870]=b;b=a+28|0;c[b>>2]=7;if((a+32|0)>>>0<e>>>0)do{M=b;b=b+4|0;c[b>>2]=7}while((M+8|0)>>>0<e>>>0);if((a|0)!=(h|0)){g=a-h|0;c[d>>2]=c[d>>2]&-2;c[h+4>>2]=g|1;c[a>>2]=g;b=g>>>3;if(g>>>0<256){a=b<<1;e=3064+(a<<2)|0;d=c[756]|0;b=1<<b;if(d&b){b=3064+(a+2<<2)|0;a=c[b>>2]|0;if(a>>>0<(c[760]|0)>>>0)Da();else{G=b;H=a}}else{c[756]=d|b;G=3064+(a+2<<2)|0;H=e}c[G>>2]=h;c[H+12>>2]=h;c[h+8>>2]=H;c[h+12>>2]=e;break}b=g>>>8;if(b)if(g>>>0>16777215)e=31;else{L=(b+1048320|0)>>>16&8;M=b<<L;K=(M+520192|0)>>>16&4;M=M<<K;e=(M+245760|0)>>>16&2;e=14-(K|L|e)+(M<<e>>>15)|0;e=g>>>(e+7|0)&1|e<<1}else e=0;d=3328+(e<<2)|0;c[h+28>>2]=e;c[h+20>>2]=0;c[f>>2]=0;b=c[757]|0;a=1<<e;if(!(b&a)){c[757]=b|a;c[d>>2]=h;c[h+24>>2]=d;c[h+12>>2]=h;c[h+8>>2]=h;break}b=c[d>>2]|0;k:do if((c[b+4>>2]&-8|0)!=(g|0)){e=g<<((e|0)==31?0:25-(e>>>1)|0);while(1){a=b+16+(e>>>31<<2)|0;d=c[a>>2]|0;if(!d)break;if((c[d+4>>2]&-8|0)==(g|0)){I=d;break k}else{e=e<<1;b=d}}if(a>>>0<(c[760]|0)>>>0)Da();else{c[a>>2]=h;c[h+24>>2]=b;c[h+12>>2]=h;c[h+8>>2]=h;break g}}else I=b;while(0);b=I+8|0;a=c[b>>2]|0;M=c[760]|0;if(a>>>0>=M>>>0&I>>>0>=M>>>0){c[a+12>>2]=h;c[b>>2]=h;c[h+8>>2]=a;c[h+12>>2]=I;c[h+24>>2]=0;break}else Da()}}else{M=c[760]|0;if((M|0)==0|w>>>0<M>>>0)c[760]=w;c[868]=w;c[869]=p;c[871]=0;c[765]=c[874];c[764]=-1;b=0;do{M=b<<1;L=3064+(M<<2)|0;c[3064+(M+3<<2)>>2]=L;c[3064+(M+2<<2)>>2]=L;b=b+1|0}while((b|0)!=32);M=w+8|0;M=(M&7|0)==0?0:0-M&7;L=p+-40-M|0;c[762]=w+M;c[759]=L;c[w+(M+4)>>2]=L|1;c[w+(p+-36)>>2]=40;c[763]=c[878]}while(0);b=c[759]|0;if(b>>>0>q>>>0){L=b-q|0;c[759]=L;M=c[762]|0;c[762]=M+q;c[M+(q+4)>>2]=L|1;c[M+4>>2]=q|3;M=M+8|0;return M|0}}c[(qi()|0)>>2]=12;M=0;return M|0}function Vj(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0;if(!a)return;b=a+-8|0;i=c[760]|0;if(b>>>0<i>>>0)Da();d=c[a+-4>>2]|0;e=d&3;if((e|0)==1)Da();o=d&-8;q=a+(o+-8)|0;do if(!(d&1)){b=c[b>>2]|0;if(!e)return;j=-8-b|0;l=a+j|0;m=b+o|0;if(l>>>0<i>>>0)Da();if((l|0)==(c[761]|0)){b=a+(o+-4)|0;d=c[b>>2]|0;if((d&3|0)!=3){u=l;g=m;break}c[758]=m;c[b>>2]=d&-2;c[a+(j+4)>>2]=m|1;c[q>>2]=m;return}f=b>>>3;if(b>>>0<256){e=c[a+(j+8)>>2]|0;d=c[a+(j+12)>>2]|0;b=3064+(f<<1<<2)|0;if((e|0)!=(b|0)){if(e>>>0<i>>>0)Da();if((c[e+12>>2]|0)!=(l|0))Da()}if((d|0)==(e|0)){c[756]=c[756]&~(1<<f);u=l;g=m;break}if((d|0)!=(b|0)){if(d>>>0<i>>>0)Da();b=d+8|0;if((c[b>>2]|0)==(l|0))h=b;else Da()}else h=d+8|0;c[e+12>>2]=d;c[h>>2]=e;u=l;g=m;break}h=c[a+(j+24)>>2]|0;e=c[a+(j+12)>>2]|0;do if((e|0)==(l|0)){d=a+(j+20)|0;b=c[d>>2]|0;if(!b){d=a+(j+16)|0;b=c[d>>2]|0;if(!b){k=0;break}}while(1){e=b+20|0;f=c[e>>2]|0;if(f){b=f;d=e;continue}e=b+16|0;f=c[e>>2]|0;if(!f)break;else{b=f;d=e}}if(d>>>0<i>>>0)Da();else{c[d>>2]=0;k=b;break}}else{f=c[a+(j+8)>>2]|0;if(f>>>0<i>>>0)Da();b=f+12|0;if((c[b>>2]|0)!=(l|0))Da();d=e+8|0;if((c[d>>2]|0)==(l|0)){c[b>>2]=e;c[d>>2]=f;k=e;break}else Da()}while(0);if(h){b=c[a+(j+28)>>2]|0;d=3328+(b<<2)|0;if((l|0)==(c[d>>2]|0)){c[d>>2]=k;if(!k){c[757]=c[757]&~(1<<b);u=l;g=m;break}}else{if(h>>>0<(c[760]|0)>>>0)Da();b=h+16|0;if((c[b>>2]|0)==(l|0))c[b>>2]=k;else c[h+20>>2]=k;if(!k){u=l;g=m;break}}d=c[760]|0;if(k>>>0<d>>>0)Da();c[k+24>>2]=h;b=c[a+(j+16)>>2]|0;do if(b)if(b>>>0<d>>>0)Da();else{c[k+16>>2]=b;c[b+24>>2]=k;break}while(0);b=c[a+(j+20)>>2]|0;if(b)if(b>>>0<(c[760]|0)>>>0)Da();else{c[k+20>>2]=b;c[b+24>>2]=k;u=l;g=m;break}else{u=l;g=m}}else{u=l;g=m}}else{u=b;g=o}while(0);if(u>>>0>=q>>>0)Da();b=a+(o+-4)|0;d=c[b>>2]|0;if(!(d&1))Da();if(!(d&2)){if((q|0)==(c[762]|0)){t=(c[759]|0)+g|0;c[759]=t;c[762]=u;c[u+4>>2]=t|1;if((u|0)!=(c[761]|0))return;c[761]=0;c[758]=0;return}if((q|0)==(c[761]|0)){t=(c[758]|0)+g|0;c[758]=t;c[761]=u;c[u+4>>2]=t|1;c[u+t>>2]=t;return}g=(d&-8)+g|0;f=d>>>3;do if(d>>>0>=256){h=c[a+(o+16)>>2]|0;b=c[a+(o|4)>>2]|0;do if((b|0)==(q|0)){d=a+(o+12)|0;b=c[d>>2]|0;if(!b){d=a+(o+8)|0;b=c[d>>2]|0;if(!b){p=0;break}}while(1){e=b+20|0;f=c[e>>2]|0;if(f){b=f;d=e;continue}e=b+16|0;f=c[e>>2]|0;if(!f)break;else{b=f;d=e}}if(d>>>0<(c[760]|0)>>>0)Da();else{c[d>>2]=0;p=b;break}}else{d=c[a+o>>2]|0;if(d>>>0<(c[760]|0)>>>0)Da();e=d+12|0;if((c[e>>2]|0)!=(q|0))Da();f=b+8|0;if((c[f>>2]|0)==(q|0)){c[e>>2]=b;c[f>>2]=d;p=b;break}else Da()}while(0);if(h){b=c[a+(o+20)>>2]|0;d=3328+(b<<2)|0;if((q|0)==(c[d>>2]|0)){c[d>>2]=p;if(!p){c[757]=c[757]&~(1<<b);break}}else{if(h>>>0<(c[760]|0)>>>0)Da();b=h+16|0;if((c[b>>2]|0)==(q|0))c[b>>2]=p;else c[h+20>>2]=p;if(!p)break}d=c[760]|0;if(p>>>0<d>>>0)Da();c[p+24>>2]=h;b=c[a+(o+8)>>2]|0;do if(b)if(b>>>0<d>>>0)Da();else{c[p+16>>2]=b;c[b+24>>2]=p;break}while(0);b=c[a+(o+12)>>2]|0;if(b)if(b>>>0<(c[760]|0)>>>0)Da();else{c[p+20>>2]=b;c[b+24>>2]=p;break}}}else{e=c[a+o>>2]|0;d=c[a+(o|4)>>2]|0;b=3064+(f<<1<<2)|0;if((e|0)!=(b|0)){if(e>>>0<(c[760]|0)>>>0)Da();if((c[e+12>>2]|0)!=(q|0))Da()}if((d|0)==(e|0)){c[756]=c[756]&~(1<<f);break}if((d|0)!=(b|0)){if(d>>>0<(c[760]|0)>>>0)Da();b=d+8|0;if((c[b>>2]|0)==(q|0))n=b;else Da()}else n=d+8|0;c[e+12>>2]=d;c[n>>2]=e}while(0);c[u+4>>2]=g|1;c[u+g>>2]=g;if((u|0)==(c[761]|0)){c[758]=g;return}}else{c[b>>2]=d&-2;c[u+4>>2]=g|1;c[u+g>>2]=g}b=g>>>3;if(g>>>0<256){d=b<<1;f=3064+(d<<2)|0;e=c[756]|0;b=1<<b;if(e&b){b=3064+(d+2<<2)|0;d=c[b>>2]|0;if(d>>>0<(c[760]|0)>>>0)Da();else{r=b;s=d}}else{c[756]=e|b;r=3064+(d+2<<2)|0;s=f}c[r>>2]=u;c[s+12>>2]=u;c[u+8>>2]=s;c[u+12>>2]=f;return}b=g>>>8;if(b)if(g>>>0>16777215)f=31;else{r=(b+1048320|0)>>>16&8;s=b<<r;q=(s+520192|0)>>>16&4;s=s<<q;f=(s+245760|0)>>>16&2;f=14-(q|r|f)+(s<<f>>>15)|0;f=g>>>(f+7|0)&1|f<<1}else f=0;b=3328+(f<<2)|0;c[u+28>>2]=f;c[u+20>>2]=0;c[u+16>>2]=0;d=c[757]|0;e=1<<f;a:do if(d&e){b=c[b>>2]|0;b:do if((c[b+4>>2]&-8|0)!=(g|0)){f=g<<((f|0)==31?0:25-(f>>>1)|0);while(1){d=b+16+(f>>>31<<2)|0;e=c[d>>2]|0;if(!e)break;if((c[e+4>>2]&-8|0)==(g|0)){t=e;break b}else{f=f<<1;b=e}}if(d>>>0<(c[760]|0)>>>0)Da();else{c[d>>2]=u;c[u+24>>2]=b;c[u+12>>2]=u;c[u+8>>2]=u;break a}}else t=b;while(0);b=t+8|0;d=c[b>>2]|0;s=c[760]|0;if(d>>>0>=s>>>0&t>>>0>=s>>>0){c[d+12>>2]=u;c[b>>2]=u;c[u+8>>2]=d;c[u+12>>2]=t;c[u+24>>2]=0;break}else Da()}else{c[757]=d|e;c[b>>2]=u;c[u+24>>2]=b;c[u+12>>2]=u;c[u+8>>2]=u}while(0);u=(c[764]|0)+-1|0;c[764]=u;if(!u)b=3480;else return;while(1){b=c[b>>2]|0;if(!b)break;else b=b+8|0}c[764]=-1;return}function Wj(a,b){a=a|0;b=b|0;var d=0;if(a){d=$(b,a)|0;if((b|a)>>>0>65535)d=((d>>>0)/(a>>>0)|0|0)==(b|0)?d:-1}else d=0;b=Uj(d)|0;if(!b)return b|0;if(!(c[b+-4>>2]&3))return b|0;ek(b|0,0,d|0)|0;return b|0}function Xj(a,b){a=a|0;b=b|0;var d=0,e=0;if(!a){a=Uj(b)|0;return a|0}if(b>>>0>4294967231){c[(qi()|0)>>2]=12;a=0;return a|0}d=Yj(a+-8|0,b>>>0<11?16:b+11&-8)|0;if(d){a=d+8|0;return a|0}d=Uj(b)|0;if(!d){a=0;return a|0}e=c[a+-4>>2]|0;e=(e&-8)-((e&3|0)==0?8:4)|0;ik(d|0,a|0,(e>>>0<b>>>0?e:b)|0)|0;Vj(a);a=d;return a|0}function Yj(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0;o=a+4|0;p=c[o>>2]|0;j=p&-8;l=a+j|0;i=c[760]|0;d=p&3;if(!((d|0)!=1&a>>>0>=i>>>0&a>>>0<l>>>0))Da();e=a+(j|4)|0;f=c[e>>2]|0;if(!(f&1))Da();if(!d){if(b>>>0<256){a=0;return a|0}if(j>>>0>=(b+4|0)>>>0?(j-b|0)>>>0<=c[876]<<1>>>0:0)return a|0;a=0;return a|0}if(j>>>0>=b>>>0){d=j-b|0;if(d>>>0<=15)return a|0;c[o>>2]=p&1|b|2;c[a+(b+4)>>2]=d|3;c[e>>2]=c[e>>2]|1;Zj(a+b|0,d);return a|0}if((l|0)==(c[762]|0)){d=(c[759]|0)+j|0;if(d>>>0<=b>>>0){a=0;return a|0}n=d-b|0;c[o>>2]=p&1|b|2;c[a+(b+4)>>2]=n|1;c[762]=a+b;c[759]=n;return a|0}if((l|0)==(c[761]|0)){e=(c[758]|0)+j|0;if(e>>>0<b>>>0){a=0;return a|0}d=e-b|0;if(d>>>0>15){c[o>>2]=p&1|b|2;c[a+(b+4)>>2]=d|1;c[a+e>>2]=d;e=a+(e+4)|0;c[e>>2]=c[e>>2]&-2;e=a+b|0}else{c[o>>2]=p&1|e|2;e=a+(e+4)|0;c[e>>2]=c[e>>2]|1;e=0;d=0}c[758]=d;c[761]=e;return a|0}if(f&2){a=0;return a|0}m=(f&-8)+j|0;if(m>>>0<b>>>0){a=0;return a|0}n=m-b|0;g=f>>>3;do if(f>>>0>=256){h=c[a+(j+24)>>2]|0;g=c[a+(j+12)>>2]|0;do if((g|0)==(l|0)){e=a+(j+20)|0;d=c[e>>2]|0;if(!d){e=a+(j+16)|0;d=c[e>>2]|0;if(!d){k=0;break}}while(1){f=d+20|0;g=c[f>>2]|0;if(g){d=g;e=f;continue}f=d+16|0;g=c[f>>2]|0;if(!g)break;else{d=g;e=f}}if(e>>>0<i>>>0)Da();else{c[e>>2]=0;k=d;break}}else{f=c[a+(j+8)>>2]|0;if(f>>>0<i>>>0)Da();d=f+12|0;if((c[d>>2]|0)!=(l|0))Da();e=g+8|0;if((c[e>>2]|0)==(l|0)){c[d>>2]=g;c[e>>2]=f;k=g;break}else Da()}while(0);if(h){d=c[a+(j+28)>>2]|0;e=3328+(d<<2)|0;if((l|0)==(c[e>>2]|0)){c[e>>2]=k;if(!k){c[757]=c[757]&~(1<<d);break}}else{if(h>>>0<(c[760]|0)>>>0)Da();d=h+16|0;if((c[d>>2]|0)==(l|0))c[d>>2]=k;else c[h+20>>2]=k;if(!k)break}e=c[760]|0;if(k>>>0<e>>>0)Da();c[k+24>>2]=h;d=c[a+(j+16)>>2]|0;do if(d)if(d>>>0<e>>>0)Da();else{c[k+16>>2]=d;c[d+24>>2]=k;break}while(0);d=c[a+(j+20)>>2]|0;if(d)if(d>>>0<(c[760]|0)>>>0)Da();else{c[k+20>>2]=d;c[d+24>>2]=k;break}}}else{f=c[a+(j+8)>>2]|0;e=c[a+(j+12)>>2]|0;d=3064+(g<<1<<2)|0;if((f|0)!=(d|0)){if(f>>>0<i>>>0)Da();if((c[f+12>>2]|0)!=(l|0))Da()}if((e|0)==(f|0)){c[756]=c[756]&~(1<<g);break}if((e|0)!=(d|0)){if(e>>>0<i>>>0)Da();d=e+8|0;if((c[d>>2]|0)==(l|0))h=d;else Da()}else h=e+8|0;c[f+12>>2]=e;c[h>>2]=f}while(0);if(n>>>0<16){c[o>>2]=m|p&1|2;b=a+(m|4)|0;c[b>>2]=c[b>>2]|1;return a|0}else{c[o>>2]=p&1|b|2;c[a+(b+4)>>2]=n|3;p=a+(m|4)|0;c[p>>2]=c[p>>2]|1;Zj(a+b|0,n);return a|0}return 0}function Zj(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0;q=a+b|0;d=c[a+4>>2]|0;do if(!(d&1)){k=c[a>>2]|0;if(!(d&3))return;n=a+(0-k)|0;m=k+b|0;j=c[760]|0;if(n>>>0<j>>>0)Da();if((n|0)==(c[761]|0)){e=a+(b+4)|0;d=c[e>>2]|0;if((d&3|0)!=3){t=n;h=m;break}c[758]=m;c[e>>2]=d&-2;c[a+(4-k)>>2]=m|1;c[q>>2]=m;return}g=k>>>3;if(k>>>0<256){f=c[a+(8-k)>>2]|0;e=c[a+(12-k)>>2]|0;d=3064+(g<<1<<2)|0;if((f|0)!=(d|0)){if(f>>>0<j>>>0)Da();if((c[f+12>>2]|0)!=(n|0))Da()}if((e|0)==(f|0)){c[756]=c[756]&~(1<<g);t=n;h=m;break}if((e|0)!=(d|0)){if(e>>>0<j>>>0)Da();d=e+8|0;if((c[d>>2]|0)==(n|0))i=d;else Da()}else i=e+8|0;c[f+12>>2]=e;c[i>>2]=f;t=n;h=m;break}i=c[a+(24-k)>>2]|0;f=c[a+(12-k)>>2]|0;do if((f|0)==(n|0)){f=16-k|0;e=a+(f+4)|0;d=c[e>>2]|0;if(!d){e=a+f|0;d=c[e>>2]|0;if(!d){l=0;break}}while(1){f=d+20|0;g=c[f>>2]|0;if(g){d=g;e=f;continue}f=d+16|0;g=c[f>>2]|0;if(!g)break;else{d=g;e=f}}if(e>>>0<j>>>0)Da();else{c[e>>2]=0;l=d;break}}else{g=c[a+(8-k)>>2]|0;if(g>>>0<j>>>0)Da();d=g+12|0;if((c[d>>2]|0)!=(n|0))Da();e=f+8|0;if((c[e>>2]|0)==(n|0)){c[d>>2]=f;c[e>>2]=g;l=f;break}else Da()}while(0);if(i){d=c[a+(28-k)>>2]|0;e=3328+(d<<2)|0;if((n|0)==(c[e>>2]|0)){c[e>>2]=l;if(!l){c[757]=c[757]&~(1<<d);t=n;h=m;break}}else{if(i>>>0<(c[760]|0)>>>0)Da();d=i+16|0;if((c[d>>2]|0)==(n|0))c[d>>2]=l;else c[i+20>>2]=l;if(!l){t=n;h=m;break}}f=c[760]|0;if(l>>>0<f>>>0)Da();c[l+24>>2]=i;d=16-k|0;e=c[a+d>>2]|0;do if(e)if(e>>>0<f>>>0)Da();else{c[l+16>>2]=e;c[e+24>>2]=l;break}while(0);d=c[a+(d+4)>>2]|0;if(d)if(d>>>0<(c[760]|0)>>>0)Da();else{c[l+20>>2]=d;c[d+24>>2]=l;t=n;h=m;break}else{t=n;h=m}}else{t=n;h=m}}else{t=a;h=b}while(0);j=c[760]|0;if(q>>>0<j>>>0)Da();d=a+(b+4)|0;e=c[d>>2]|0;if(!(e&2)){if((q|0)==(c[762]|0)){s=(c[759]|0)+h|0;c[759]=s;c[762]=t;c[t+4>>2]=s|1;if((t|0)!=(c[761]|0))return;c[761]=0;c[758]=0;return}if((q|0)==(c[761]|0)){s=(c[758]|0)+h|0;c[758]=s;c[761]=t;c[t+4>>2]=s|1;c[t+s>>2]=s;return}h=(e&-8)+h|0;g=e>>>3;do if(e>>>0>=256){i=c[a+(b+24)>>2]|0;f=c[a+(b+12)>>2]|0;do if((f|0)==(q|0)){e=a+(b+20)|0;d=c[e>>2]|0;if(!d){e=a+(b+16)|0;d=c[e>>2]|0;if(!d){p=0;break}}while(1){f=d+20|0;g=c[f>>2]|0;if(g){d=g;e=f;continue}f=d+16|0;g=c[f>>2]|0;if(!g)break;else{d=g;e=f}}if(e>>>0<j>>>0)Da();else{c[e>>2]=0;p=d;break}}else{g=c[a+(b+8)>>2]|0;if(g>>>0<j>>>0)Da();d=g+12|0;if((c[d>>2]|0)!=(q|0))Da();e=f+8|0;if((c[e>>2]|0)==(q|0)){c[d>>2]=f;c[e>>2]=g;p=f;break}else Da()}while(0);if(i){d=c[a+(b+28)>>2]|0;e=3328+(d<<2)|0;if((q|0)==(c[e>>2]|0)){c[e>>2]=p;if(!p){c[757]=c[757]&~(1<<d);break}}else{if(i>>>0<(c[760]|0)>>>0)Da();d=i+16|0;if((c[d>>2]|0)==(q|0))c[d>>2]=p;else c[i+20>>2]=p;if(!p)break}e=c[760]|0;if(p>>>0<e>>>0)Da();c[p+24>>2]=i;d=c[a+(b+16)>>2]|0;do if(d)if(d>>>0<e>>>0)Da();else{c[p+16>>2]=d;c[d+24>>2]=p;break}while(0);d=c[a+(b+20)>>2]|0;if(d)if(d>>>0<(c[760]|0)>>>0)Da();else{c[p+20>>2]=d;c[d+24>>2]=p;break}}}else{f=c[a+(b+8)>>2]|0;e=c[a+(b+12)>>2]|0;d=3064+(g<<1<<2)|0;if((f|0)!=(d|0)){if(f>>>0<j>>>0)Da();if((c[f+12>>2]|0)!=(q|0))Da()}if((e|0)==(f|0)){c[756]=c[756]&~(1<<g);break}if((e|0)!=(d|0)){if(e>>>0<j>>>0)Da();d=e+8|0;if((c[d>>2]|0)==(q|0))o=d;else Da()}else o=e+8|0;c[f+12>>2]=e;c[o>>2]=f}while(0);c[t+4>>2]=h|1;c[t+h>>2]=h;if((t|0)==(c[761]|0)){c[758]=h;return}}else{c[d>>2]=e&-2;c[t+4>>2]=h|1;c[t+h>>2]=h}d=h>>>3;if(h>>>0<256){e=d<<1;g=3064+(e<<2)|0;f=c[756]|0;d=1<<d;if(f&d){d=3064+(e+2<<2)|0;e=c[d>>2]|0;if(e>>>0<(c[760]|0)>>>0)Da();else{r=d;s=e}}else{c[756]=f|d;r=3064+(e+2<<2)|0;s=g}c[r>>2]=t;c[s+12>>2]=t;c[t+8>>2]=s;c[t+12>>2]=g;return}d=h>>>8;if(d)if(h>>>0>16777215)g=31;else{r=(d+1048320|0)>>>16&8;s=d<<r;q=(s+520192|0)>>>16&4;s=s<<q;g=(s+245760|0)>>>16&2;g=14-(q|r|g)+(s<<g>>>15)|0;g=h>>>(g+7|0)&1|g<<1}else g=0;d=3328+(g<<2)|0;c[t+28>>2]=g;c[t+20>>2]=0;c[t+16>>2]=0;e=c[757]|0;f=1<<g;if(!(e&f)){c[757]=e|f;c[d>>2]=t;c[t+24>>2]=d;c[t+12>>2]=t;c[t+8>>2]=t;return}d=c[d>>2]|0;a:do if((c[d+4>>2]&-8|0)!=(h|0)){g=h<<((g|0)==31?0:25-(g>>>1)|0);while(1){e=d+16+(g>>>31<<2)|0;f=c[e>>2]|0;if(!f)break;if((c[f+4>>2]&-8|0)==(h|0)){d=f;break a}else{g=g<<1;d=f}}if(e>>>0<(c[760]|0)>>>0)Da();c[e>>2]=t;c[t+24>>2]=d;c[t+12>>2]=t;c[t+8>>2]=t;return}while(0);e=d+8|0;f=c[e>>2]|0;s=c[760]|0;if(!(f>>>0>=s>>>0&d>>>0>=s>>>0))Da();c[f+12>>2]=t;c[e>>2]=t;c[t+8>>2]=f;c[t+12>>2]=d;c[t+24>>2]=0;return}
function Ee(b,e,f,j,k,l,m,n,o,p,q,r){b=b|0;e=e|0;f=f|0;j=j|0;k=k|0;l=l|0;m=m|0;n=n|0;o=o|0;p=p|0;q=+q;r=r|0;var s=0,t=0,u=0.0,v=0.0,w=0,x=0,y=0.0,z=0.0,A=0.0,B=0,C=0,D=0,E=0,F=0,G=0,H=0,I=0,J=0.0,K=0,L=0,M=0,N=0,O=0,P=0,Q=0,R=0,S=0,T=0,U=0.0,V=0.0,W=0.0,X=0.0,Y=0,Z=0;T=i;i=i+240|0;x=T+224|0;w=T+216|0;C=T+208|0;B=T+200|0;s=T+136|0;N=T+72|0;P=T;Q=T+232|0;R=T+228|0;h[s>>3]=100.0;h[s+8>>3]=100.0;h[s+16>>3]=110.0;h[s+24>>3]=100.0;h[s+32>>3]=110.0;h[s+40>>3]=110.0;h[s+48>>3]=100.0;h[s+56>>3]=110.0;h[N>>3]=+h[p>>3];h[N+8>>3]=+h[p+8>>3];h[N+16>>3]=+h[p+16>>3];h[N+24>>3]=+h[p+24>>3];h[N+32>>3]=+h[p+32>>3];h[N+40>>3]=+h[p+40>>3];h[N+48>>3]=+h[p+48>>3];h[N+56>>3]=+h[p+56>>3];He(s,N,P);A=+h[N>>3];V=+h[N+16>>3];y=A-V;J=+h[N+8>>3];U=+h[N+24>>3];u=J-U;s=~~(y*y+u*u);u=+h[N+32>>3];y=+h[N+48>>3];X=u-y;v=+h[N+40>>3];z=+h[N+56>>3];W=v-z;N=~~(X*X+W*W);u=V-u;v=U-v;t=~~(u*u+v*v);A=y-A;J=z-J;O=~~(A*A+J*J);s=~~(+(((N|0)>(s|0)?N:s)|0)*q*q);t=~~(+(((O|0)>(t|0)?O:t)|0)*q*q);if(!b){p=f;while(1)if((p|0)<(j|0)&($(p,p)|0)<(s|0))p=p<<1;else break;s=f;while(1)if((s|0)<(j|0)&($(s,s)|0)<(t|0))s=s<<1;else break}else{p=f;while(1)if((p|0)<(j|0)&($(p<<2,p)|0)<(s|0))p=p<<1;else break;s=f;while(1)if((s|0)<(j|0)&($(s<<2,s)|0)<(t|0))s=s<<1;else break}O=(p|0)>(j|0)?j:p;M=(s|0)>(j|0)?j:s;L=(O|0)/(f|0)|0;K=(M|0)/(f|0)|0;u=(1.0-q)*.5*10.0;J=q*10.0;N=$(f,f)|0;a:do if(!e){I=N*3|0;p=Wj(I,4)|0;if(!p){Me(3,5472,B);rb(1)}do switch(n|0){case 0:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){t=(($(t,l)|0)+s|0)*3|0;b=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;s=p+(b<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t+2)>>0]|0);s=p+(b+1<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t+1)>>0]|0);b=p+(b+2<<2)|0;c[b>>2]=(c[b>>2]|0)+(d[k+t>>0]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 1:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){t=(($(t,l)|0)+s|0)*3|0;b=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;s=p+(b<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+t>>0]|0);s=p+(b+1<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t+1)>>0]|0);b=p+(b+2<<2)|0;c[b>>2]=(c[b>>2]|0)+(d[k+(t+2)>>0]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 2:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){t=($(t,l)|0)+s<<2;b=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;s=p+(b<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t|2)>>0]|0);s=p+(b+1<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t|1)>>0]|0);b=p+(b+2<<2)|0;c[b>>2]=(c[b>>2]|0)+(d[k+t>>0]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 3:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){t=($(t,l)|0)+s<<2;b=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;s=p+(b<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+t>>0]|0);s=p+(b+1<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t|1)>>0]|0);b=p+(b+2<<2)|0;c[b>>2]=(c[b>>2]|0)+(d[k+(t|2)>>0]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 4:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){t=($(t,l)|0)+s<<2;b=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;s=p+(b<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t|1)>>0]|0);s=p+(b+1<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t|2)>>0]|0);b=p+(b+2<<2)|0;c[b>>2]=(c[b>>2]|0)+(d[k+(t|3)>>0]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 5:case 12:case 13:case 14:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){t=d[k+(($(t,l)|0)+s)>>0]|0;b=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;s=p+(b<<2)|0;c[s>>2]=(c[s>>2]|0)+t;s=p+(b+1<<2)|0;c[s>>2]=(c[s>>2]|0)+t;b=p+(b+2<<2)|0;c[b>>2]=(c[b>>2]|0)+t}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 6:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){t=($(t,l)|0)+s<<2;b=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;s=p+(b<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t|3)>>0]|0);s=p+(b+1<<2)|0;c[s>>2]=(c[s>>2]|0)+(d[k+(t|2)>>0]|0);b=p+(b+2<<2)|0;c[b>>2]=(c[b>>2]|0)+(d[k+(t|1)>>0]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 7:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Z=$(t,l)|0;Y=(s&65534)+Z<<1;V=+((d[k+Y>>0]|0)+-128|0);X=+((d[k+(Y+2)>>0]|0)+-128|0);W=+((d[k+(Z+s<<1|1)>>0]|0)+-16|0)*298.0820007324219;Z=~~(V*516.4110107421875+W)>>8;Y=~~(W-V*100.29100036621094-X*208.1199951171875)>>8;t=~~(W+X*408.5830078125)>>8;Z=(Z|0)>0?Z:0;b=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;s=p+(b<<2)|0;c[s>>2]=((Z|0)<255?Z:255)+(c[s>>2]|0);Y=(Y|0)>0?Y:0;s=p+(b+1<<2)|0;c[s>>2]=((Y|0)<255?Y:255)+(c[s>>2]|0);t=(t|0)>0?t:0;b=p+(b+2<<2)|0;c[b>>2]=((t|0)<255?t:255)+(c[b>>2]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 8:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){t=$(t,l)|0;Y=(s&65534)+t<<1;V=+((d[k+(Y|1)>>0]|0)+-128|0);X=+((d[k+(Y+3)>>0]|0)+-128|0);W=+((d[k+(t+s<<1)>>0]|0)+-16|0)*298.0820007324219;s=~~(W+V*516.4110107421875)>>8;t=~~(W-V*100.29100036621094-X*208.1199951171875)>>8;Y=~~(W+X*408.5830078125)>>8;s=(s|0)>0?s:0;Z=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;b=p+(Z<<2)|0;c[b>>2]=((s|0)<255?s:255)+(c[b>>2]|0);t=(t|0)>0?t:0;b=p+(Z+1<<2)|0;c[b>>2]=((t|0)<255?t:255)+(c[b>>2]|0);Y=(Y|0)>0?Y:0;Z=p+(Z+2<<2)|0;c[Z>>2]=((Y|0)<255?Y:255)+(c[Z>>2]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 9:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=($(t,l)|0)+s<<1;t=d[k+(Y|1)>>0]|0;Z=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;b=p+(Z<<2)|0;c[b>>2]=(t<<3&248|4)+(c[b>>2]|0);Y=d[k+Y>>0]|0;b=p+(Z+1<<2)|0;c[b>>2]=(Y<<5&224|t>>>3&28|2)+(c[b>>2]|0);Z=p+(Z+2<<2)|0;c[Z>>2]=(Y&248|4)+(c[Z>>2]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 10:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=($(t,l)|0)+s<<1;t=d[k+(Y|1)>>0]|0;Z=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;b=p+(Z<<2)|0;c[b>>2]=(t<<2&248|4)+(c[b>>2]|0);Y=d[k+Y>>0]|0;b=p+(Z+1<<2)|0;c[b>>2]=(Y<<5&224|t>>>3&24|4)+(c[b>>2]|0);Z=p+(Z+2<<2)|0;c[Z>>2]=(Y&248|4)+(c[Z>>2]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}case 11:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=($(t,l)|0)+s<<1;Z=(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)|0)*3|0;b=p+(Z<<2)|0;c[b>>2]=(c[b>>2]|0)+((d[k+(Y|1)>>0]|0)&240|8);Y=d[k+Y>>0]|0;b=p+(Z+1<<2)|0;c[b>>2]=(Y<<4&240|8)+(c[b>>2]|0);Z=p+(Z+2<<2)|0;c[Z>>2]=(Y&240|8)+(c[Z>>2]|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}break}default:{Me(3,4615,C);S=278;break a}}while(0);t=$(K,L)|0;if(N){s=0;do{a[r+s>>0]=((c[p+(s<<2)>>2]|0)>>>0)/(t>>>0)|0;s=s+1|0}while((s|0)<(I|0))}Vj(p);p=0}else{p=Wj(N,4)|0;if(!p){Me(3,5472,w);rb(1)}b:do if(n>>>0<2){y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)>0){e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=(($(t,l)|0)+s|0)*3|0;Z=p+(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)<<2)|0;c[Z>>2]=(c[Z>>2]|0)+((((d[k+(Y+1)>>0]|0)+(d[k+Y>>0]|0)+(d[k+(Y+2)>>0]|0)|0)>>>0)/3|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0))}}else{if((n&-2|0)==2){y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)<=0)break;e=(O|0)>0;x=0;while(1){v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=($(t,l)|0)+s<<2;Z=p+(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)<<2)|0;c[Z>>2]=(c[Z>>2]|0)+((((d[k+(Y|1)>>0]|0)+(d[k+Y>>0]|0)+(d[k+(Y|2)>>0]|0)|0)>>>0)/3|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0;if((x|0)>=(M|0))break b}}if((n&-3|0)==4){y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)<=0)break;e=(O|0)>0;x=0;while(1){v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=($(t,l)|0)+s<<2;Z=p+(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)<<2)|0;c[Z>>2]=(c[Z>>2]|0)+((((d[k+(Y|2)>>0]|0)+(d[k+(Y|1)>>0]|0)+(d[k+(Y|3)>>0]|0)|0)>>>0)/3|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0;if((x|0)>=(M|0))break b}}switch(n|0){case 5:case 12:case 13:case 14:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)<=0)break b;e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=d[k+(($(t,l)|0)+s)>>0]|0;Z=p+(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)<<2)|0;c[Z>>2]=(c[Z>>2]|0)+Y}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0));break}case 7:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)<=0)break b;e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=d[k+(($(t,l)|0)+s<<1|1)>>0]|0;Z=p+(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)<<2)|0;c[Z>>2]=(c[Z>>2]|0)+Y}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0));break}case 8:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)<=0)break b;e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=d[k+(($(t,l)|0)+s<<1)>>0]|0;Z=p+(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)<<2)|0;c[Z>>2]=(c[Z>>2]|0)+Y}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0));break}case 9:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)<=0)break b;e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=($(t,l)|0)+s<<1;I=d[k+Y>>0]|0;Y=d[k+(Y|1)>>0]|0;Z=p+(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)<<2)|0;c[Z>>2]=(c[Z>>2]|0)+((((Y<<3&248|4)+(I&248|4)+(I<<5&224|Y>>>3&28|2)|0)>>>0)/3|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0));break}case 10:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)<=0)break b;e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=($(t,l)|0)+s<<1;I=d[k+Y>>0]|0;Y=d[k+(Y|1)>>0]|0;Z=p+(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)<<2)|0;c[Z>>2]=(c[Z>>2]|0)+((((Y<<2&248|4)+(I&248|4)+(I<<5&224|Y>>>3&24|4)|0)>>>0)/3|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0));break}case 11:{y=u+100.0;z=+(M|0);A=+(O|0);B=P+48|0;C=P+56|0;n=P+64|0;D=P+8|0;E=P+16|0;F=P+24|0;G=P+32|0;H=P+40|0;j=(b|0)==1;if((M|0)<=0)break b;e=(O|0)>0;x=0;do{v=y+J*(+(x|0)+.5)/z;if(e){w=0;do{u=y+J*(+(w|0)+.5)/A;q=+h[n>>3]+(+h[B>>3]*u+v*+h[C>>3]);if(q==0.0){S=278;break a}X=(+h[E>>3]+(u*+h[P>>3]+v*+h[D>>3]))/q;g[Q>>2]=X;u=(+h[H>>3]+(u*+h[F>>3]+v*+h[G>>3]))/q;g[R>>2]=u;lf(o,X,u,Q,R)|0;u=+g[Q>>2];if(j){s=((~~(u+1.0)|0)/2|0)<<1;t=((~~(+g[R>>2]+1.0)|0)/2|0)<<1}else{s=~~(u+.5);t=~~(+g[R>>2]+.5)}if((s|0)>-1?(t|0)<(m|0)&((t|0)>-1&(s|0)<(l|0)):0){Y=($(t,l)|0)+s<<1;I=d[k+Y>>0]|0;Z=p+(($((x|0)/(K|0)|0,f)|0)+((w|0)/(L|0)|0)<<2)|0;c[Z>>2]=(c[Z>>2]|0)+((((I<<4&240|8)+(I&240|8)+((d[k+(Y|1)>>0]|0)&240|8)|0)>>>0)/3|0)}w=w+1|0}while((w|0)<(O|0))}x=x+1|0}while((x|0)<(M|0));break}default:{Me(3,4615,x);S=278;break a}}}while(0);s=$(K,L)|0;if(N){t=0;do{a[r+t>>0]=((c[p+(t<<2)>>2]|0)>>>0)/(s>>>0)|0;t=t+1|0}while((t|0)<(N|0))}Vj(p);p=0}while(0);if((S|0)==278){Vj(p);p=-1}i=T;return p|0}function Fe(b,e,f,g,j,k,l){b=b|0;e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;l=l|0;var m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0;v=i;i=i+32|0;p=v+24|0;o=v+8|0;u=v;a:do if((e+-3|0)>>>0>5){c[f>>2]=-1;c[g>>2]=0;h[j>>3]=-1.0;m=-1}else{c[o>>2]=0;t=e+-1|0;c[o+4>>2]=$(t,e)|0;r=$(e,e)|0;c[o+8>>2]=r+-1;c[o+12>>2]=t;n=a[b+(c[o>>2]|0)>>0]|0;m=(n&255)>0?n:0;n=(n&255)<255?n:-1;s=a[b+(c[o+4>>2]|0)>>0]|0;m=(s&255)>(m&255)?s:m;n=(s&255)<(n&255)?s:n;s=a[b+(c[o+8>>2]|0)>>0]|0;m=(s&255)>(m&255)?s:m;n=(s&255)<(n&255)?s:n;s=a[b+(c[o+12>>2]|0)>>0]|0;m=((s&255)>(m&255)?s:m)&255;n=((s&255)<(n&255)?s:n)&255;if((m-n|0)<30){c[f>>2]=-1;c[g>>2]=0;h[j>>3]=-1.0;m=-2;break}q=(m+n|0)>>>1;a[p>>0]=(d[b+(c[o>>2]|0)>>0]|0)>>>0<q>>>0&1;a[p+1>>0]=(d[b+(c[o+4>>2]|0)>>0]|0)>>>0<q>>>0&1;a[p+2>>0]=(d[b+(c[o+8>>2]|0)>>0]|0)>>>0<q>>>0&1;a[p+3>>0]=(d[b+(c[o+12>>2]|0)>>0]|0)>>>0<q>>>0&1;n=0;while(1){m=n+1|0;if(((a[p+n>>0]|0)==1?(a[p+((m|0)%4|0)>>0]|0)==1:0)?(a[p+((n+2|0)%4|0)>>0]|0)==0:0){m=n;n=10;break}if((m|0)<4)n=m;else{n=12;break}}if((n|0)==10)c[g>>2]=m;else if((n|0)==12?(m|0)==4:0){c[f>>2]=-1;c[g>>2]=0;h[j>>3]=-1.0;m=-3;break}if(!r)s=255;else{m=255;n=0;do{s=b+n|0;p=d[s>>0]|0;o=p-q|0;o=(o|0)<0?0-o|0:o;m=(o|0)<(m|0)?o:m;a[s>>0]=p>>>0<q>>>0&1;n=n+1|0}while((n|0)<(r|0));s=m}switch(c[g>>2]|0){case 0:{if((e|0)>0){r=(e|0)==0;n=0;m=0;g=0;do{p=(g|0)==(t|0);q=$(g,e)|0;if(!r){o=0;do{if((o|g|0)!=0?!(p&((o|0)==0|(o|0)==(t|0))):0){n=fk(n|0,m|0,1)|0;n=(a[b+(o+q)>>0]|0)!=0|n;m=D}o=o+1|0}while((o|0)!=(e|0))}g=g+1|0}while((g|0)<(e|0))}else{n=0;m=0}break}case 1:{if((e|0)>0){r=(e|0)>0;n=0;m=0;g=0;do{p=(g|0)==0;q=(g|0)==(t|0);if(r){o=t;while(1){w=(o|0)==(t|0);if(!(p&w)?!(q&(w|(o|0)==0)):0){n=fk(n|0,m|0,1)|0;n=(a[b+(($(o,e)|0)+g)>>0]|0)!=0|n;m=D}if((o|0)>0)o=o+-1|0;else break}}g=g+1|0}while((g|0)<(e|0))}else{n=0;m=0}break}case 2:{if((e|0)>0){r=(e|0)>0;n=0;m=0;g=t;while(1){q=(g|0)==(t|0)|(g|0)==0;p=$(g,e)|0;if(r){o=t;while(1){if(!(q&(o|0)==(t|0)|(o|g|0)==0)){n=fk(n|0,m|0,1)|0;n=(a[b+(o+p)>>0]|0)!=0|n;m=D}if((o|0)>0)o=o+-1|0;else break}}if((g|0)>0)g=g+-1|0;else break}}else{n=0;m=0}break}case 3:{if((e|0)>0){r=(e|0)>0;n=0;m=0;g=t;while(1){p=(g|0)==(t|0);q=(g|0)==0;if(r){o=0;do{if(!(p&(o|0)==0|(o|g|0)==0|q&(o|0)==(t|0))){n=fk(n|0,m|0,1)|0;n=(a[b+(($(o,e)|0)+g)>>0]|0)!=0|n;m=D}o=o+1|0}while((o|0)<(e|0))}if((g|0)>0)g=g+-1|0;else break}}else{n=0;m=0}break}default:{n=0;m=0}}h[j>>3]=(s|0)>30?1.0:+(s|0)/30.0;switch(k|0){case 259:{w=a[4551+n>>0]|0;k=w<<24>>24;l=u;c[l>>2]=k;c[l+4>>2]=((k|0)<0)<<31>>31;if(w<<24>>24<0){c[f>>2]=-1;h[j>>3]=-1.0;m=-4;break a}break}case 515:{m=a[4423+n>>0]|0;k=m<<24>>24;w=u;c[w>>2]=k;c[w+4>>2]=((k|0)<0)<<31>>31;if(l)c[l>>2]=d[4487+n>>0];if(m<<24>>24<0){c[f>>2]=-1;h[j>>3]=-1.0;m=-4;break a}break}case 772:case 1028:{m=Ie(k,n,m,0,u)|0;if((m|0)<0){c[f>>2]=-1;h[j>>3]=-1.0;m=-4;break a}if((l|0)!=0&(m|0)>0)c[l>>2]=m;break}default:{w=u;c[w>>2]=n;c[w+4>>2]=m}}c[f>>2]=c[u>>2];m=0}while(0);i=v;return m|0}function Ge(a,b,e,f,g,j,k){a=a|0;b=b|0;e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0.0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0.0,z=0,A=0,B=0,C=0,D=0.0;C=i;i=i+16|0;l=C+8|0;n=C;a:do if(!a){c[g>>2]=0;c[j>>2]=0;h[k>>3]=-1.0;b=-1}else switch(b|0){case 0:{o=$(f,f)|0;z=o*3|0;A=Uj(o*12|0)|0;if(!A){Me(3,5472,n);rb(1)}if(!o)b=0;else{b=0;l=0;do{b=((d[e+l>>0]|0)^255)+b|0;l=l+1|0}while((l|0)<(z|0))}l=(b|0)/(z|0)|0;if(!o)m=0.0;else{n=0;b=0;do{x=((d[e+n>>0]|0)^255)-l|0;c[A+(n<<2)>>2]=x;b=($(x,x)|0)+b|0;n=n+1|0}while((n|0)<(z|0));m=+(b|0)}y=+P(+m);if(y/(+(f|0)*1.7320508)<15.0){c[g>>2]=0;c[j>>2]=0;h[k>>3]=-1.0;Vj(A);b=-2;break a}v=c[a>>2]|0;w=a+12|0;x=a+16|0;if((v|0)>0){u=c[a+8>>2]|0;s=(o|0)==0;n=-1;t=0;m=0.0;l=-1;b=-1;do{b:while(1){n=n+1|0;switch(c[u+(n<<2)>>2]|0){case 0:break;case 2:break b;default:{B=17;break b}}}if((B|0)==17){B=0;p=n<<2;q=c[x>>2]|0;r=0;do{a=r+p|0;if(s)o=0;else{e=c[(c[w>>2]|0)+(a<<2)>>2]|0;f=0;o=0;do{o=($(c[e+(f<<2)>>2]|0,c[A+(f<<2)>>2]|0)|0)+o|0;f=f+1|0}while((f|0)<(z|0))}D=+(o|0)/+h[q+(a<<3)>>3]/y;a=D>m;l=a?r:l;b=a?n:b;m=a?D:m;r=r+1|0}while((r|0)!=4)}t=t+1|0}while((t|0)<(v|0))}else{m=0.0;l=-1;b=-1}c[j>>2]=l;c[g>>2]=b;h[k>>3]=m;Vj(A);b=0;break a}case 1:{z=$(f,f)|0;A=Uj(z<<2)|0;if(!A){Me(3,5472,l);rb(1)}if(!z)b=0;else{b=0;l=0;do{b=((d[e+l>>0]|0)^255)+b|0;l=l+1|0}while((l|0)<(z|0))}l=(b|0)/(z|0)|0;if(!z)m=0.0;else{n=0;b=0;do{x=((d[e+n>>0]|0)^255)-l|0;c[A+(n<<2)>>2]=x;b=($(x,x)|0)+b|0;n=n+1|0}while((n|0)<(z|0));m=+(b|0)}y=+P(+m);if(y/+(f|0)<15.0){c[g>>2]=0;c[j>>2]=0;h[k>>3]=-1.0;Vj(A);b=-2;break a}v=c[a>>2]|0;w=a+20|0;x=a+24|0;if((v|0)>0){s=c[a+8>>2]|0;t=(z|0)==0;n=-1;u=0;m=0.0;l=-1;b=-1;do{c:while(1){n=n+1|0;switch(c[s+(n<<2)>>2]|0){case 0:break;case 2:break c;default:{B=37;break c}}}if((B|0)==37){B=0;p=n<<2;q=c[x>>2]|0;r=0;do{a=r+p|0;if(t)o=0;else{e=c[(c[w>>2]|0)+(a<<2)>>2]|0;f=0;o=0;do{o=($(c[e+(f<<2)>>2]|0,c[A+(f<<2)>>2]|0)|0)+o|0;f=f+1|0}while((f|0)<(z|0))}D=+(o|0)/+h[q+(a<<3)>>3]/y;a=D>m;l=a?r:l;b=a?n:b;m=a?D:m;r=r+1|0}while((r|0)!=4)}u=u+1|0}while((u|0)<(v|0))}else{m=0.0;l=-1;b=-1}c[j>>2]=l;c[g>>2]=b;h[k>>3]=m;Vj(A);b=0;break a}default:{b=-1;break a}}while(0);i=C;return b|0}function He(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0;e=Re(8,8)|0;f=Re(8,1)|0;g=Re(8,1)|0;i=c[e>>2]|0;j=c[f>>2]|0;k=0;do{p=a+(k<<4)|0;l=k<<4;h[i+(l<<3)>>3]=+h[p>>3];o=a+(k<<4)+8|0;h[i+((l|1)<<3)>>3]=+h[o>>3];h[i+((l|2)<<3)>>3]=1.0;h[i+((l|3)<<3)>>3]=0.0;h[i+((l|4)<<3)>>3]=0.0;h[i+((l|5)<<3)>>3]=0.0;n=b+(k<<4)|0;h[i+((l|6)<<3)>>3]=-(+h[p>>3]*+h[n>>3]);h[i+((l|7)<<3)>>3]=-(+h[o>>3]*+h[n>>3]);h[i+((l|8)<<3)>>3]=0.0;h[i+((l|9)<<3)>>3]=0.0;h[i+((l|10)<<3)>>3]=0.0;h[i+((l|11)<<3)>>3]=+h[p>>3];h[i+((l|12)<<3)>>3]=+h[o>>3];h[i+((l|13)<<3)>>3]=1.0;m=b+(k<<4)+8|0;h[i+((l|14)<<3)>>3]=-(+h[p>>3]*+h[m>>3]);h[i+((l|15)<<3)>>3]=-(+h[o>>3]*+h[m>>3]);l=k<<1;h[j+(l<<3)>>3]=+h[n>>3];h[j+((l|1)<<3)>>3]=+h[m>>3];k=k+1|0}while((k|0)!=4);_e(e)|0;Xe(g,e,f)|0;p=c[g>>2]|0;h[d>>3]=+h[p>>3];h[d+8>>3]=+h[p+8>>3];h[d+16>>3]=+h[p+16>>3];p=c[g>>2]|0;h[d+24>>3]=+h[p+24>>3];h[d+32>>3]=+h[p+32>>3];h[d+40>>3]=+h[p+40>>3];p=c[g>>2]|0;h[d+48>>3]=+h[p+48>>3];h[d+56>>3]=+h[p+56>>3];h[d+64>>3]=1.0;We(e)|0;We(f)|0;We(g)|0;return}function Ie(b,e,f,g,h){b=b|0;e=e|0;f=f|0;g=g|0;h=h|0;var j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,E=0,F=0,G=0,H=0,I=0;I=i;i=i+2320|0;k=I+2304|0;y=I+864|0;u=I+784|0;H=I+704|0;w=I+624|0;v=I+548|0;G=I+40|0;E=I;switch(b|0){case 772:{g=9;j=1;l=3;break}case 1028:{g=5;j=2;l=3;break}case 2830:{A=900;s=1472;C=64;F=120;z=127;B=g;j=9;l=6;break}default:f=-1}if((l|0)==3){b=0;while(1){a[k+b>>0]=e&1;e=hk(e|0,f|0,1)|0;b=b+1|0;if((b|0)==13)break;else f=D}A=840;s=1408;C=g;F=13;z=15;B=k;l=6}do if((l|0)==6){r=j<<1;k=1;f=0;while(1){g=v+(k<<2)|0;c[g>>2]=0;b=0;e=0;do{if(a[B+e>>0]|0){b=b^c[A+((($(e,k)|0)%(z|0)|0)<<2)>>2];c[g>>2]=b}e=e+1|0}while((e|0)<(F|0));f=(b|0)==0?f:1;c[g>>2]=c[s+(b<<2)>>2];if((k|0)<(r|0))k=k+1|0;else break}x=(f|0)!=0;if(x){c[u>>2]=0;f=c[v+4>>2]|0;c[u+4>>2]=f;c[y>>2]=0;c[y+72>>2]=1;if((r|0)>1){b=1;do{c[y+(b<<2)>>2]=-1;c[y+72+(b<<2)>>2]=0;b=b+1|0}while((b|0)<(r|0))}c[H>>2]=0;c[H+4>>2]=0;c[w>>2]=-1;c[w+4>>2]=0;p=0;q=0;while(1){g=q;q=q+1|0;o=u+(q<<2)|0;if((f|0)==-1){k=g+2|0;c[H+(k<<2)>>2]=p;if((p|0)<0)n=p;else{f=0;while(1){o=y+(q*72|0)+(f<<2)|0;n=c[o>>2]|0;c[y+(k*72|0)+(f<<2)>>2]=n;c[o>>2]=c[s+(n<<2)>>2];if((f|0)<(p|0))f=f+1|0;else{n=p;break}}}}else{b=g;while(1){f=(b|0)>0;if(f&(c[u+(b<<2)>>2]|0)==-1)b=b+-1|0;else break}if(f){e=b;do{f=e;e=e+-1|0;if((c[u+(e<<2)>>2]|0)!=-1)b=(c[w+(b<<2)>>2]|0)<(c[w+(e<<2)>>2]|0)?e:b}while((f|0)>1)}e=H+(b<<2)|0;m=q-b|0;n=m+(c[e>>2]|0)|0;k=g+2|0;n=(p|0)>(n|0)?p:n;c[H+(k<<2)>>2]=n;f=0;do{c[y+(k*72|0)+(f<<2)>>2]=0;f=f+1|0}while((f|0)<(r|0));f=c[e>>2]|0;e=u+(b<<2)|0;if((f|0)>=0){l=0;while(1){g=c[y+(b*72|0)+(l<<2)>>2]|0;if((g|0)!=-1)c[y+(k*72|0)+(m+l<<2)>>2]=c[A+(((g+z+(c[o>>2]|0)-(c[e>>2]|0)|0)%(z|0)|0)<<2)>>2];if((l|0)<(f|0))l=l+1|0;else break}}if((p|0)>=0){f=0;while(1){o=y+(q*72|0)+(f<<2)|0;m=c[o>>2]|0;l=y+(k*72|0)+(f<<2)|0;c[l>>2]=c[l>>2]^m;c[o>>2]=c[s+(m<<2)>>2];if((f|0)<(p|0))f=f+1|0;else break}}}c[w+(k<<2)>>2]=q-n;if((q|0)>=(r|0))break;f=c[v+(k<<2)>>2]|0;if((f|0)==-1)f=0;else f=c[A+(f<<2)>>2]|0;g=u+(k<<2)|0;c[g>>2]=f;if((n|0)>=1){e=1;while(1){b=c[v+(k-e<<2)>>2]|0;if((b|0)!=-1?(t=c[y+(k*72|0)+(e<<2)>>2]|0,(t|0)!=0):0){f=f^c[A+((((c[s+(t<<2)>>2]|0)+b|0)%(z|0)|0)<<2)>>2];c[g>>2]=f}if((e|0)<(n|0))e=e+1|0;else break}}f=c[s+(f<<2)>>2]|0;c[g>>2]=f;if((n|0)>(j|0))break;else p=n}if((n|0)>(j|0)){f=-1;break}if((n|0)>=0){f=0;while(1){w=y+(k*72|0)+(f<<2)|0;c[w>>2]=c[s+(c[w>>2]<<2)>>2];if((f|0)<(n|0))f=f+1|0;else break}}if((n|0)>=1){f=1;while(1){c[E+(f<<2)>>2]=c[y+(k*72|0)+(f<<2)>>2];if((f|0)<(n|0))f=f+1|0;else break}}l=(n|0)<1;f=0;m=1;do{if(l)b=1;else{j=1;b=1;while(1){e=E+(j<<2)|0;g=c[e>>2]|0;if((g|0)!=-1){y=(g+j|0)%(z|0)|0;c[e>>2]=y;b=c[A+(y<<2)>>2]^b}if((j|0)<(n|0))j=j+1|0;else break}}if(!b){c[G+(f<<2)>>2]=z-m;f=f+1|0}m=m+1|0}while((z|0)>=(m|0));if((f|0)!=(n|0)){f=-1;break}if((n|0)>0){f=0;do{E=B+(c[G+(f<<2)>>2]|0)|0;a[E>>0]=d[E>>0]^1;f=f+1|0}while((f|0)<(n|0))}}else k=0;b=h;c[b>>2]=0;c[b+4>>2]=0;b=1;e=0;g=0;j=0;f=F-C|0;while(1){G=ok(d[B+f>>0]|0,0,b|0,e|0)|0;g=gk(G|0,D|0,g|0,j|0)|0;j=D;G=h;c[G>>2]=g;c[G+4>>2]=j;b=fk(b|0,e|0,1)|0;f=f+1|0;if((f|0)>=(F|0))break;else e=D}if(x)f=c[H+(k<<2)>>2]|0;else f=0}while(0);i=I;return f|0}function Je(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0.0;A=i;i=i+32|0;z=A+24|0;g=A+16|0;d=A+8|0;do if(a){if(!b){Me(3,4674,d);d=-1;break}y=a+8|0;f=c[a+4>>2]|0;a:do if((f|0)>0){e=c[y>>2]|0;d=0;do{if(!(c[e+(d<<2)>>2]|0))break a;d=d+1|0}while((d|0)<(f|0))}else d=0;while(0);if((d|0)!=(f|0)){x=Aj(b)|0;if(!x){Me(3,4719,g);d=-1;break}r=a+28|0;s=d<<2;t=a+12|0;u=a+20|0;v=a+16|0;w=a+24|0;f=Gj(x,4742)|0;e=0;b:while(1){q=e+s|0;p=0;b=0;do{n=(p|0)==0;o=(p|0)==2;g=c[r>>2]|0;if((g|0)>0){m=0;do{if((g|0)>0){l=0;do{if(!f){e=17;break b}g=qj(f)|0;f=Gj(0,4742)|0;g=255-g|0;k=((($(c[r>>2]|0,m)|0)+l|0)*3|0)+p|0;c[(c[(c[t>>2]|0)+(q<<2)>>2]|0)+(k<<2)>>2]=g;k=($(c[r>>2]|0,m)|0)+l|0;j=c[(c[u>>2]|0)+(q<<2)>>2]|0;k=j+(k<<2)|0;if(!n){c[k>>2]=(c[k>>2]|0)+g;if(o){k=j+(($(c[r>>2]|0,m)|0)+l<<2)|0;c[k>>2]=(c[k>>2]|0)/3|0}}else c[k>>2]=g;b=g+b|0;l=l+1|0;g=c[r>>2]|0}while((l|0)<(g|0))}m=m+1|0}while((m|0)<(g|0))}p=p+1|0}while((p|0)<3);g=c[r>>2]|0;l=(b|0)/($(g*3|0,g)|0)|0;if(($(g*3|0,g)|0)>0){j=c[(c[t>>2]|0)+(q<<2)>>2]|0;k=0;b=0;do{p=j+(k<<2)|0;g=(c[p>>2]|0)-l|0;c[p>>2]=g;b=($(g,g)|0)+b|0;k=k+1|0;g=c[r>>2]|0}while((k|0)<($(g*3|0,g)|0))}else b=0;B=+P(+(+(b|0)));h[(c[v>>2]|0)+(q<<3)>>3]=B==0.0?1.0e-07:B;if(!($(g,g)|0))b=0;else{g=c[(c[u>>2]|0)+(q<<2)>>2]|0;j=0;b=0;do{o=g+(j<<2)|0;p=(c[o>>2]|0)-l|0;c[o>>2]=p;b=($(p,p)|0)+b|0;j=j+1|0;p=c[r>>2]|0}while((j|0)<($(p,p)|0))}B=+P(+(+(b|0)));h[(c[w>>2]|0)+(q<<3)>>3]=B==0.0?1.0e-07:B;e=e+1|0;if((e|0)>=4){e=32;break}}if((e|0)==17){Me(3,4747,z);Vj(x);d=-1;break}else if((e|0)==32){Vj(x);c[(c[y>>2]|0)+(d<<2)>>2]=1;c[a>>2]=(c[a>>2]|0)+1;break}}else d=-1}else{Me(3,4649,A);d=-1}while(0);i=A;return d|0}function Ke(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0,j=0,k=0;k=i;i=i+32|0;j=k+16|0;h=k+8|0;e=k;g=_i(d,4854)|0;do if(g){dj(g,0,2)|0;e=gj(g)|0;dj(g,0,0)|0;f=Uj(e+1|0)|0;if(!f){Me(3,5472,h);Wi(g)|0;e=-1;break}h=aj(f,e,1,g)|0;Wi(g)|0;if(!h){c[j>>2]=d;Me(3,4820,j);Vj(f);e=-1;break}else{a[f+e>>0]=0;e=Je(b,f)|0;Vj(f);break}}else{c[e>>2]=d;Me(3,4774,e);e=-1}while(0);i=k;return e|0}function Le(a,b){a=a|0;b=b|0;b=(c[a+8>>2]|0)+(b<<2)|0;if(!(c[b>>2]|0))b=-1;else{c[b>>2]=0;c[a>>2]=(c[a>>2]|0)+-1;b=1}return b|0}function Me(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,j=0;j=i;i=i+32|0;h=j+16|0;f=j;c[h>>2]=0;if(((d|0)!=0&(c[496]|0)<=(b|0)?(a[d>>0]|0)!=0:0)?(c[f>>2]=e,g=lj(h,d,f)|0,(g|0)>-1):0){f=c[497]|0;do if(f){if(!(c[498]|0)){Wb[f&15](c[h>>2]|0);break}e=gb()|0;b=c[500]|0;if((e|0)==(c[499]|0)){if((b|0)>0){Wb[f&15](c[502]|0);c[500]=0;f=c[497]|0}Wb[f&15](c[h>>2]|0);break}f=c[501]|0;if((b|0)<(f|0)){d=(c[502]|0)+b|0;if((g|0)<(-3-b+f|0)){yj(d,c[h>>2]|0)|0;c[500]=(c[500]|0)+g;break}else{a[d>>0]=46;a[d+1>>0]=46;a[d+2>>0]=46;a[d+3>>0]=0;c[500]=c[501];break}}}else $i(c[h>>2]|0,c[659]|0)|0;while(0);Vj(c[h>>2]|0)}i=j;return}function Ne(a,b,c){a=a|0;b=b|0;c=c|0;var d=0,e=0,f=0,g=0,i=0;i=0;do{d=a+(i<<5)|0;e=a+(i<<5)+8|0;f=a+(i<<5)+16|0;g=0;do{h[c+(i<<5)+(g<<3)>>3]=+h[d>>3]*+h[b+(g<<3)>>3]+ +h[e>>3]*+h[b+32+(g<<3)>>3]+ +h[f>>3]*+h[b+64+(g<<3)>>3];g=g+1|0}while((g|0)!=4);g=c+(i<<5)+24|0;h[g>>3]=+h[a+(i<<5)+24>>3]+ +h[g>>3];i=i+1|0}while((i|0)!=3);return 0}function Oe(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,i=0,j=0,k=0;j=Re(4,4)|0;d=c[j>>2]|0;e=c[j>>2]|0;f=c[j>>2]|0;g=c[j>>2]|0;i=0;do{k=i<<2;h[d+(k<<3)>>3]=+h[a+(i<<5)>>3];h[e+(1+k<<3)>>3]=+h[a+(i<<5)+8>>3];h[f+(2+k<<3)>>3]=+h[a+(i<<5)+16>>3];h[g+(3+k<<3)>>3]=+h[a+(i<<5)+24>>3];i=i+1|0}while((i|0)!=3);d=c[j>>2]|0;e=d+96|0;c[e>>2]=0;c[e+4>>2]=0;c[e+8>>2]=0;c[e+12>>2]=0;c[e+16>>2]=0;c[e+20>>2]=0;h[d+120>>3]=1.0;_e(j)|0;d=c[j>>2]|0;e=c[j>>2]|0;f=c[j>>2]|0;g=c[j>>2]|0;i=0;do{k=i<<2;h[b+(i<<5)>>3]=+h[d+(k<<3)>>3];h[b+(i<<5)+8>>3]=+h[e+(1+k<<3)>>3];h[b+(i<<5)+16>>3]=+h[f+(2+k<<3)>>3];h[b+(i<<5)+24>>3]=+h[g+(3+k<<3)>>3];i=i+1|0}while((i|0)!=3);We(j)|0;return 0}function Pe(a){a=a|0;switch(a|0){case 1:case 0:{a=3;break}case 6:case 4:case 3:case 2:{a=4;break}case 14:case 13:case 12:case 5:{a=1;break}case 11:case 10:case 9:case 8:case 7:{a=2;break}default:a=0}return a|0}function Qe(b,c,d,e){b=b|0;c=c|0;d=d|0;e=e|0;var f=0;do if((b|0)!=0&(c|0)!=0&(d|0)!=0){f=Ej(c,47)|0;if(!f){a[b>>0]=0;break}f=f+((e|0)!=0&1)-c|0;if((f+1|0)>>>0<=d>>>0){Dj(b,c,f)|0;a[b+f>>0]=0}else b=0}else b=0;while(0);return b|0}function Re(a,b){a=a|0;b=b|0;var d=0,e=0;d=Uj(12)|0;do if(d){e=Uj($(a<<3,b)|0)|0;c[d>>2]=e;if(!e){Vj(d);d=0;break}else{c[d+4>>2]=a;c[d+8>>2]=b;break}}else d=0;while(0);return d|0}function Se(a){a=a|0;var b=0;b=Re(c[a+4>>2]|0,c[a+8>>2]|0)|0;if(b){if((Ve(b,a)|0)<0){We(b)|0;b=0}}else b=0;return b|0}function Te(a,b){a=a|0;b=b|0;var d=0;d=Re(c[a+4>>2]|0,c[b+8>>2]|0)|0;if(d){if((Xe(d,a,b)|0)<0){We(d)|0;d=0}}else d=0;return d|0}function Ue(a){a=a|0;var b=0;b=Re(c[a+8>>2]|0,c[a+4>>2]|0)|0;if(b){if(($e(b,a)|0)<0){We(b)|0;b=0}}else b=0;return b|0}function Ve(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,i=0,j=0,k=0,l=0,m=0;d=c[a+4>>2]|0;if((d|0)==(c[b+4>>2]|0)?(j=c[a+8>>2]|0,(j|0)==(c[b+8>>2]|0)):0)if((d|0)>0){e=(j|0)>0;l=0;do{f=$(j,l)|0;if(e){g=c[b>>2]|0;i=c[a>>2]|0;k=0;do{m=f+k|0;h[i+(m<<3)>>3]=+h[g+(m<<3)>>3];k=k+1|0}while((k|0)<(j|0))}l=l+1|0}while((l|0)<(d|0));d=0}else d=0;else d=-1;return d|0}function We(a){a=a|0;if(a){Vj(c[a>>2]|0);Vj(a)}return 0}function Xe(a,b,d){a=a|0;b=b|0;d=d|0;var e=0.0,f=0,g=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0;n=c[b+8>>2]|0;if(((n|0)==(c[d+4>>2]|0)?(r=c[a+4>>2]|0,(r|0)==(c[b+4>>2]|0)):0)?(o=c[a+8>>2]|0,(o|0)==(c[d+8>>2]|0)):0){s=(o|0)>0?o:0;if((r|0)>0){p=(o|0)>0;q=(n|0)>0;k=c[a>>2]|0;m=0;while(1){a=$(n,m)|0;if(p){f=0;l=k;while(1){h[l>>3]=0.0;if(q){e=0.0;g=0;i=(c[b>>2]|0)+(a<<3)|0;j=(c[d>>2]|0)+(f<<3)|0;while(1){e=e+ +h[i>>3]*+h[j>>3];h[l>>3]=e;g=g+1|0;if((g|0)>=(n|0))break;else{i=i+8|0;j=j+(o<<3)|0}}}f=f+1|0;if((f|0)>=(o|0))break;else l=l+8|0}}m=m+1|0;if((m|0)>=(r|0)){a=0;break}else k=k+(s<<3)|0}}else a=0}else a=-1;return a|0}function Ye(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,g=0,i=0.0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0.0,s=0,t=0,u=0;q=c[a+4>>2]|0;s=c[a+8>>2]|0;f=(q|0)<(s|0)?q:s;a:do if(((((!((q|0)<2|(s|0)<2)?(c[b+8>>2]|0)==(s|0):0)?(c[b+4>>2]|0)==(f|0):0)?(t=d+4|0,(c[t>>2]|0)==(f|0)):0)?(g=e+4|0,(c[g>>2]|0)==(s|0)):0)?(u=Se(a)|0,(u|0)!=0):0){r=+P(+(+(q|0)));o=c[u+4>>2]|0;p=c[u+8>>2]|0;if(!((o|0)<1|(p|0)<1)?(c[g>>2]|0)==(p|0):0){if(p){f=c[e>>2]|0;a=0;do{h[f+(a<<3)>>3]=0.0;a=a+1|0}while((a|0)!=(p|0))}n=c[u>>2]|0;if(o){f=(p|0)==0;a=0;j=n;while(1){if(!f){g=0;k=j;l=c[e>>2]|0;while(1){h[l>>3]=+h[k>>3]+ +h[l>>3];g=g+1|0;if((g|0)==(p|0))break;else{k=k+8|0;l=l+8|0}}}a=a+1|0;if((a|0)==(o|0))break;else j=j+(p<<3)|0}}i=+(o|0);if(p){f=c[e>>2]|0;a=0;do{m=f+(a<<3)|0;h[m>>3]=+h[m>>3]/i;a=a+1|0}while((a|0)!=(p|0))}l=(p|0)>0?p:0;if((o|0)>0){f=(p|0)>0;a=0;j=n;while(1){if(f){g=0;k=j;m=c[e>>2]|0;while(1){h[k>>3]=+h[k>>3]-+h[m>>3];g=g+1|0;if((g|0)>=(p|0))break;else{k=k+8|0;m=m+8|0}}}a=a+1|0;if((a|0)>=(o|0))break;else j=j+(l<<3)|0}}f=$(s,q)|0;if((f|0)>0){a=0;do{e=n+(a<<3)|0;h[e>>3]=+h[e>>3]/r;a=a+1|0}while((a|0)<(f|0))}f=Ze(u,b,d)|0;We(u)|0;j=c[t>>2]|0;if((j|0)>0){a=c[d>>2]|0;g=0;i=0.0;do{i=i+ +h[a+(g<<3)>>3];g=g+1|0}while((g|0)<(j|0))}else i=0.0;if((j|0)<=0)break;a=c[d>>2]|0;g=0;while(1){d=a+(g<<3)|0;h[d>>3]=+h[d>>3]/i;g=g+1|0;if((g|0)>=(j|0))break a}}We(u)|0;f=-1}else f=-1;while(0);return f|0}function Ze(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,j=0,k=0.0,l=0,m=0,n=0,o=0,p=0,q=0.0,r=0,s=0,t=0,u=0.0,v=0.0,w=0,x=0.0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0,N=0,Q=0,R=0,S=0,T=0,U=0,V=0.0,W=0.0,X=0.0,Y=0,Z=0;U=i;i=i+16|0;w=U;F=a+4|0;I=c[F>>2]|0;J=a+8|0;K=c[J>>2]|0;S=(K|0)<(I|0)?K:I;a:do if(((!((I|0)<2|(K|0)<2)?(R=b+8|0,(c[R>>2]|0)==(K|0)):0)?(L=b+4|0,(c[L>>2]|0)==(S|0)):0)?(M=d+4|0,(c[M>>2]|0)==(S|0)):0){T=Re(S,S)|0;N=T+4|0;if((c[N>>2]|0)==(S|0)?(Q=T+8|0,(c[Q>>2]|0)==(S|0)):0){G=(I|0)<(K|0);s=c[F>>2]|0;t=c[J>>2]|0;if(G){if((S|0)!=(s|0)){We(T)|0;e=-1;break}g=c[T>>2]|0;if((S|0)>0){m=(S|0)==0;j=(t|0)>0;n=0;r=g;while(1){l=$(n,t)|0;if(!m){p=0;s=r;while(1){if((p|0)>=(n|0)){e=c[a>>2]|0;h[s>>3]=0.0;if(j){k=0.0;o=e+(l<<3)|0;e=e+(($(p,t)|0)<<3)|0;f=0;while(1){k=k+ +h[o>>3]*+h[e>>3];h[s>>3]=k;f=f+1|0;if((f|0)>=(t|0))break;else{o=o+8|0;e=e+8|0}}}}else h[s>>3]=+h[g+(($(p,S)|0)+n<<3)>>3];p=p+1|0;if((p|0)==(S|0))break;else s=s+8|0}}n=n+1|0;if((n|0)>=(S|0))break;else r=r+(S<<3)|0}}}else{if((S|0)!=(t|0)){We(T)|0;e=-1;break}g=c[T>>2]|0;if((S|0)>0){l=(S|0)==0;j=(s|0)>0;m=0;p=g;while(1){if(!l){o=0;r=p;while(1){if((o|0)>=(m|0)){e=c[a>>2]|0;h[r>>3]=0.0;if(j){k=0.0;n=e+(m<<3)|0;e=e+(o<<3)|0;f=0;while(1){k=k+ +h[n>>3]*+h[e>>3];h[r>>3]=k;f=f+1|0;if((f|0)>=(s|0))break;else{n=n+(S<<3)|0;e=e+(S<<3)|0}}}}else h[r>>3]=+h[g+(($(o,S)|0)+m<<3)>>3];o=o+1|0;if((o|0)==(S|0))break;else r=r+8|0}}m=m+1|0;if((m|0)>=(S|0))break;else p=p+(S<<3)|0}}}do if(((S|0)>=2?(c[M>>2]|0)==(S|0):0)?(H=nf(S)|0,(H|0)!=0):0){E=S+-1|0;c[w+4>>2]=E;c[w>>2]=(c[H>>2]|0)+8;if((rf(T,d,w)|0)<0){of(H)|0;break}B=c[H>>2]|0;h[B>>3]=0.0;if((E|0)>0){C=(S|0)==0;D=E;do{f=D;while(1){if((f|0)<=0)break;v=+O(+(+h[B+(f<<3)>>3]));e=f+-1|0;A=c[d>>2]|0;x=+O(+(+h[A+(e<<3)>>3]));if(v>(x+ +O(+(+h[A+(f<<3)>>3])))*1.0e-06)f=e;else break}y=D;D=D+-1|0;b:do if((f|0)!=(y|0)){o=B+(y<<3)|0;p=B+(f+1<<3)|0;r=(f|0)<(y|0);z=0;do{if((z|0)>99)break b;z=z+1|0;s=c[d>>2]|0;t=s+(D<<3)|0;w=s+(y<<3)|0;k=+h[w>>3];q=(+h[t>>3]-k)*.5;u=+h[o>>3];u=u*u;v=+P(+(u+q*q));if(r){A=f;q=+h[s+(f<<3)>>3]-k+u/(q+(q<0.0?-v:v));u=+h[p>>3];while(1){k=+O(+q);do if(!(k>=+O(+u))){v=-q/u;x=1.0/+P(+(v*v+1.0));v=v*x}else{if(!(k>1.0e-16)){v=1.0;x=0.0;break}k=-u/q;x=1.0/+P(+(k*k+1.0));v=x;x=k*x}while(0);j=s+(A<<3)|0;X=+h[j>>3];n=A;A=A+1|0;l=s+(A<<3)|0;W=+h[l>>3];k=X-W;m=B+(A<<3)|0;V=x*(x*k+v*2.0*+h[m>>3]);h[j>>3]=X-V;h[l>>3]=W+V;if((n|0)>(f|0)){l=B+(n<<3)|0;h[l>>3]=v*+h[l>>3]-u*x}X=+h[m>>3];h[m>>3]=X+x*(v*k-x*2.0*X);j=$(n,S)|0;l=$(A,S)|0;if(C)k=u;else{e=c[T>>2]|0;g=0;do{Z=e+(g+j<<3)|0;q=+h[Z>>3];Y=e+(g+l<<3)|0;k=+h[Y>>3];h[Z>>3]=v*q-x*k;h[Y>>3]=x*q+v*k;g=g+1|0}while((g|0)!=(S|0))}if((n|0)<(D|0)){q=+h[m>>3];Z=B+(n+2<<3)|0;k=+h[Z>>3];h[Z>>3]=v*k;k=-(x*k)}if((A|0)>=(y|0))break;else u=k}}W=+O(+(+h[o>>3]));X=+O(+(+h[t>>3]))}while(W>(X+ +O(+(+h[w>>3])))*1.0e-06)}while(0)}while((y|0)>1)}if(E){l=c[d>>2]|0;m=c[T>>2]|0;n=(S|0)==0;o=0;do{g=l+(o<<3)|0;q=+h[g>>3];j=o;o=o+1|0;if((o|0)<(S|0)){e=j;f=o;k=q;do{X=+h[l+(f<<3)>>3];Z=X>k;k=Z?X:k;e=Z?f:e;f=f+1|0}while((f|0)<(S|0))}else{e=j;k=q}h[l+(e<<3)>>3]=q;h[g>>3]=k;if(!n){g=0;f=m+(($(e,S)|0)<<3)|0;e=m+(($(j,S)|0)<<3)|0;while(1){X=+h[f>>3];h[f>>3]=+h[e>>3];h[e>>3]=X;g=g+1|0;if((g|0)==(S|0))break;else{f=f+8|0;e=e+8|0}}}}while((o|0)!=(E|0))}of(H)|0;c:do if(!G){g=c[b>>2]|0;p=(I|0)>(K|0)?K:I;d:do if((S|0)>0){m=c[d>>2]|0;n=(p|0)==0;e=0;o=c[T>>2]|0;do{if(+h[m+(e<<3)>>3]<1.0e-16)break d;if(!n){f=0;j=o;l=g;while(1){h[l>>3]=+h[j>>3];f=f+1|0;if((f|0)==(p|0))break;else{j=j+8|0;l=l+8|0}}}o=o+(p<<3)|0;g=g+(p<<3)|0;e=e+1|0}while((e|0)<(S|0))}else e=0;while(0);n=(p|0)>0?p:0;if((e|0)<(S|0)){l=c[d>>2]|0;m=(S|0)>0;while(1){h[l+(e<<3)>>3]=0.0;if(m){f=0;j=g;while(1){h[j>>3]=0.0;f=f+1|0;if((f|0)>=(S|0))break;else j=j+8|0}}e=e+1|0;if((e|0)>=(S|0))break;else g=g+(n<<3)|0}}}else{w=c[F>>2]|0;t=c[J>>2]|0;do if(!((w|0)<1|(t|0)<1)){if((c[N>>2]|0)!=(w|0))break;if((c[Q>>2]|0)!=(w|0))break;if((c[L>>2]|0)!=(w|0))break;if((c[R>>2]|0)!=(t|0))break;if((c[M>>2]|0)!=(w|0))break;f=c[b>>2]|0;e:do if((w|0)>0){p=c[d>>2]|0;s=(t|0)==0;r=(w|0)==0;e=0;do{k=+h[p+(e<<3)>>3];if(k<1.0e-16)break e;q=1.0/+P(+(+O(+k)));m=$(e,w)|0;if(!s){n=0;o=f;while(1){if(r)k=0.0;else{g=0;j=(c[T>>2]|0)+(m<<3)|0;l=(c[a>>2]|0)+(n<<3)|0;k=0.0;while(1){k=k+ +h[j>>3]*+h[l>>3];g=g+1|0;if((g|0)==(w|0))break;else{j=j+8|0;l=l+(t<<3)|0}}}h[o>>3]=q*k;n=n+1|0;if((n|0)==(t|0))break;else o=o+8|0}}f=f+(t<<3)|0;e=e+1|0}while((e|0)<(w|0))}else e=0;while(0);n=(t|0)>0?t:0;if((e|0)>=(w|0))break c;l=c[d>>2]|0;m=(t|0)>0;g=f;while(1){h[l+(e<<3)>>3]=0.0;if(m){f=0;j=g;while(1){h[j>>3]=0.0;f=f+1|0;if((f|0)>=(t|0))break;else j=j+8|0}}e=e+1|0;if((e|0)>=(w|0))break c;else g=g+(n<<3)|0}}while(0);We(T)|0;e=-1;break a}while(0);We(T)|0;e=0;break a}while(0);We(T)|0;e=-1;break}We(T)|0;e=-1}else e=-1;while(0);i=U;return e|0}function _e(a){a=a|0;var b=0,d=0,e=0,f=0.0,g=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0.0,x=0;v=i;i=i+2e3|0;u=v;b=c[a>>2]|0;t=c[a+4>>2]|0;a:do if((t|0)<=500){switch(t|0){case 0:{b=0;break a}case 1:{h[b>>3]=1.0/+h[b>>3];break a}default:{}}if((t|0)>0){a=0;do{c[u+(a<<2)>>2]=a;a=a+1|0}while((a|0)<(t|0))}s=b+(t+-1<<3)|0;if((t|0)>0){m=(t|0)==0;p=(t|0)==1;o=(t|0)==0;n=(t|0)==1;q=s;a=0;r=0;while(1){l=b+(($(r,t)|0)<<3)|0;if((r|0)<(t|0)){e=r;f=0.0;d=l;while(1){w=+O(+(+h[d>>3]));k=f<w;a=k?e:a;f=k?w:f;e=e+1|0;if((e|0)>=(t|0))break;else d=d+(t<<3)|0}}else f=0.0;if(f<=1.0e-10){b=0;break a}g=u+(a<<2)|0;j=c[g>>2]|0;k=u+(r<<2)|0;c[g>>2]=c[k>>2];c[k>>2]=j;if(!m){d=0;e=b+(($(a,t)|0)<<3)|0;g=l;while(1){w=+h[e>>3];h[e>>3]=+h[g>>3];h[g>>3]=w;d=d+1|0;if((d|0)==(t|0))break;else{e=e+8|0;g=g+8|0}}}f=+h[l>>3];if(!p){d=1;e=l;do{k=e;e=e+8|0;h[k>>3]=+h[e>>3]/f;d=d+1|0}while((d|0)!=(t|0))}h[q>>3]=1.0/f;if(!o){g=0;j=s;while(1){if((g|0)!=(r|0)){d=b+(($(g,t)|0)<<3)|0;f=+h[d>>3];if(!n){k=1;e=l;while(1){x=d;d=d+8|0;h[x>>3]=+h[d>>3]-f*+h[e>>3];k=k+1|0;if((k|0)==(t|0))break;else e=e+8|0}}h[j>>3]=-(f*+h[q>>3])}g=g+1|0;if((g|0)==(t|0))break;else j=j+(t<<3)|0}}r=r+1|0;if((r|0)>=(t|0))break;else q=q+(t<<3)|0}}if((t|0)>0){g=(t|0)>0;j=0;do{a=u+(j<<2)|0;b:do if((j|0)<(t|0)){d=j;do{if((c[a>>2]|0)==(j|0))break b;d=d+1|0;a=u+(d<<2)|0}while((d|0)<(t|0))}else d=j;while(0);c[a>>2]=c[u+(j<<2)>>2];if(g){e=0;a=b+(d<<3)|0;d=b+(j<<3)|0;while(1){w=+h[a>>3];h[a>>3]=+h[d>>3];h[d>>3]=w;e=e+1|0;if((e|0)>=(t|0))break;else{a=a+(t<<3)|0;d=d+(t<<3)|0}}}j=j+1|0}while((j|0)<(t|0))}}else b=0;while(0);i=v;return ((b|0)==0)<<31>>31|0}function $e(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,i=0,j=0,k=0,l=0;i=c[a+4>>2]|0;if((i|0)==(c[b+8>>2]|0)?(k=c[a+8>>2]|0,(k|0)==(c[b+4>>2]|0)):0){l=(k|0)>0?k:0;if((i|0)>0){j=(k|0)>0;e=c[a>>2]|0;g=0;while(1){if(j){a=0;d=(c[b>>2]|0)+(g<<3)|0;f=e;while(1){h[f>>3]=+h[d>>3];a=a+1|0;if((a|0)>=(k|0))break;else{d=d+(i<<3)|0;f=f+8|0}}}g=g+1|0;if((g|0)>=(i|0)){a=0;break}else e=e+(l<<3)|0}}else a=0}else a=-1;return a|0}function af(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0.0,g=0.0,i=0;f=+(b|0)/+(c[a>>2]|0);g=+(d|0)/+(c[a+4>>2]|0);c[e>>2]=b;c[e+4>>2]=d;b=0;do{h[e+8+(b<<3)>>3]=f*+h[a+8+(b<<3)>>3];h[e+40+(b<<3)>>3]=g*+h[a+40+(b<<3)>>3];h[e+72+(b<<3)>>3]=+h[a+72+(b<<3)>>3];b=b+1|0}while((b|0)!=4);b=c[a+176>>2]|0;switch(b|0){case 4:{h[e+104>>3]=+h[a+104>>3];h[e+112>>3]=+h[a+112>>3];h[e+120>>3]=+h[a+120>>3];h[e+128>>3]=+h[a+128>>3];h[e+136>>3]=f*+h[a+136>>3];h[e+144>>3]=g*+h[a+144>>3];h[e+152>>3]=f*+h[a+152>>3];h[e+160>>3]=g*+h[a+160>>3];h[e+168>>3]=+h[a+168>>3];i=8;break}case 3:{h[e+104>>3]=f*+h[a+104>>3];h[e+112>>3]=g*+h[a+112>>3];h[e+120>>3]=+h[a+120>>3];h[e+128>>3]=+h[a+128>>3];h[e+136>>3]=+h[a+136>>3]/(f*g);h[e+144>>3]=+h[a+144>>3]/(g*(f*f*g));i=8;break}case 2:{h[e+104>>3]=f*+h[a+104>>3];h[e+112>>3]=g*+h[a+112>>3];h[e+120>>3]=+h[a+120>>3];h[e+128>>3]=+h[a+128>>3]/(f*g);h[e+136>>3]=+h[a+136>>3]/(g*(f*f*g));i=8;break}case 1:{h[e+104>>3]=f*+h[a+104>>3];h[e+112>>3]=g*+h[a+112>>3];h[e+120>>3]=+h[a+120>>3];h[e+128>>3]=+h[a+128>>3]/(f*g);i=8;break}default:b=-1}if((i|0)==8){c[e+176>>2]=b;b=0}return b|0}function bf(a,b,c){a=a|0;b=b|0;c=c|0;var d=0,e=0,f=0,g=0.0,j=0,k=0.0,l=0,m=0,n=0,o=0.0,p=0.0,q=0,r=0,s=0.0,t=0,u=0,v=0,w=0,x=0.0;f=i;i=i+96|0;e=f;if(!(+h[a+88>>3]>=0.0)){d=0;do{h[e+(d<<5)>>3]=-+h[a+(d<<5)>>3];h[e+(d<<5)+8>>3]=-+h[a+(d<<5)+8>>3];h[e+(d<<5)+16>>3]=-+h[a+(d<<5)+16>>3];h[e+(d<<5)+24>>3]=-+h[a+(d<<5)+24>>3];d=d+1|0}while((d|0)!=3)}else{d=0;do{h[e+(d<<5)>>3]=+h[a+(d<<5)>>3];h[e+(d<<5)+8>>3]=+h[a+(d<<5)+8>>3];h[e+(d<<5)+16>>3]=+h[a+(d<<5)+16>>3];h[e+(d<<5)+24>>3]=+h[a+(d<<5)+24>>3];d=d+1|0}while((d|0)!=3)}h[b>>3]=0.0;h[b+8>>3]=0.0;h[b+16>>3]=0.0;h[b+24>>3]=0.0;h[b+32>>3]=0.0;h[b+40>>3]=0.0;h[b+48>>3]=0.0;h[b+56>>3]=0.0;h[b+64>>3]=0.0;h[b+72>>3]=0.0;h[b+80>>3]=0.0;h[b+88>>3]=0.0;g=+h[e+64>>3];o=+h[e+72>>3];p=+h[e+80>>3];x=+P(+(g*g+o*o+p*p));a=b+80|0;h[a>>3]=x;x=g/x;v=c+64|0;h[v>>3]=x;o=o/+h[a>>3];t=c+72|0;h[t>>3]=o;p=p/+h[a>>3];q=c+80|0;h[q>>3]=p;n=c+88|0;h[n>>3]=+h[e+88>>3]/+h[a>>3];g=+h[e+32>>3];k=+h[e+40>>3];s=+h[e+48>>3];p=x*g+o*k+p*s;m=b+48|0;h[m>>3]=p;g=g-p*+h[v>>3];k=k-p*+h[t>>3];p=s-p*+h[q>>3];s=+P(+(g*g+k*k+p*p));l=b+40|0;h[l>>3]=s;w=c+32|0;h[w>>3]=g/s;u=c+40|0;h[u>>3]=k/+h[l>>3];r=c+48|0;h[r>>3]=p/+h[l>>3];p=+h[e>>3];k=+h[e+8>>3];s=+h[e+16>>3];g=+h[v>>3]*p+ +h[t>>3]*k+ +h[q>>3]*s;d=b+16|0;h[d>>3]=g;o=+h[w>>3]*p+ +h[u>>3]*k+ +h[r>>3]*s;j=b+8|0;h[j>>3]=o;p=p-o*+h[w>>3]-g*+h[v>>3];k=k-o*+h[u>>3]-g*+h[t>>3];g=s-o*+h[r>>3]-g*+h[q>>3];o=+P(+(p*p+k*k+g*g));h[b>>3]=o;h[c>>3]=p/o;h[c+8>>3]=k/+h[b>>3];h[c+16>>3]=g/+h[b>>3];g=+h[n>>3];k=(+h[e+56>>3]-+h[m>>3]*g)/+h[l>>3];h[c+56>>3]=k;h[c+24>>3]=(+h[e+24>>3]-k*+h[j>>3]-+h[d>>3]*g)/+h[b>>3];d=0;do{w=b+(d<<5)|0;h[w>>3]=+h[w>>3]/+h[a>>3];w=b+(d<<5)+8|0;h[w>>3]=+h[w>>3]/+h[a>>3];w=b+(d<<5)+16|0;h[w>>3]=+h[w>>3]/+h[a>>3];d=d+1|0}while((d|0)!=3);i=f;return 0}function cf(a,b,c,d,e,f){a=a|0;b=+b;c=+c;d=d|0;e=e|0;f=f|0;var g=0.0,i=0.0,j=0.0,k=0.0,l=0.0,m=0.0,n=0.0,o=0,p=0.0,q=0.0,r=0.0,s=0.0,t=0.0,u=0.0,v=0.0,w=0.0,x=0.0,y=0.0,z=0.0,A=0.0,B=0.0,C=0.0;switch(f|0){case 4:{q=+h[a>>3];r=+h[a+8>>3];s=+h[a+16>>3];t=+h[a+24>>3];y=+h[a+32>>3];v=+h[a+40>>3];w=+h[a+48>>3];x=+h[a+56>>3];u=+h[a+64>>3];p=(b-w)/y;j=(c-x)/v;c=p*p;i=j*j;k=s*2.0;l=t*6.0;m=t*2.0;n=s*6.0;a:do if(i!=0.0|c!=0.0){f=1;g=p;b=j;while(1){C=i+c;B=q*C+1.0+C*(r*C);z=c*3.0;A=i*z;g=g-(t*(C+c*2.0)+(b*(k*g)+g*B)-p)/(l*g+(k*b+(q*(i+z)+1.0+r*(i*i+(c*(c*5.0)+A)))));z=m*g;b=b-(s*(i*2.0+C)+b*B+b*z-j)/(n*b+(q*(c+i*3.0)+1.0+r*(i*(i*5.0)+(c*c+A)))+z);if((f|0)==4)break a;c=g*g;i=b*b;if(!(i!=0.0|c!=0.0)){g=0.0;b=0.0;break}else f=f+1|0}}else{g=0.0;b=0.0}while(0);h[d>>3]=w+y*g/u;h[e>>3]=x+v*b/u;f=0;break}case 3:{p=+h[a>>3];g=(b-p)/+h[a+24>>3];o=a+8|0;b=c-+h[o>>3];j=+h[a+32>>3]/1.0e8;k=+h[a+40>>3]/1.0e8/1.0e5;c=g*g+b*b;l=+P(+c);m=j*3.0;n=k*5.0;b:do if(l!=0.0){f=1;i=l;while(1){C=i-(i*(1.0-j*c-c*(k*c))-l)/(1.0-m*c-c*(n*c));g=g*C/i;b=b*C/i;if((f|0)==3)break b;c=g*g+b*b;i=+P(+c);if(!(i!=0.0)){g=0.0;b=0.0;break}else f=f+1|0}}else{g=0.0;b=0.0}while(0);f=a+16|0;h[d>>3]=g/+h[f>>3]+p;h[e>>3]=b/+h[f>>3]+ +h[o>>3];f=0;break}case 2:{p=+h[a>>3];g=b-p;o=a+8|0;b=c-+h[o>>3];j=+h[a+24>>3]/1.0e8;k=+h[a+32>>3]/1.0e8/1.0e5;c=g*g+b*b;l=+P(+c);m=j*3.0;n=k*5.0;c:do if(l!=0.0){f=1;i=l;while(1){C=i-(i*(1.0-j*c-c*(k*c))-l)/(1.0-m*c-c*(n*c));g=g*C/i;b=b*C/i;if((f|0)==3)break c;c=g*g+b*b;i=+P(+c);if(!(i!=0.0)){g=0.0;b=0.0;break}else f=f+1|0}}else{g=0.0;b=0.0}while(0);f=a+16|0;h[d>>3]=g/+h[f>>3]+p;h[e>>3]=b/+h[f>>3]+ +h[o>>3];f=0;break}case 1:{m=+h[a>>3];g=b-m;o=a+8|0;b=c-+h[o>>3];j=+h[a+24>>3]/1.0e8;c=g*g+b*b;k=+P(+c);l=j*3.0;d:do if(k!=0.0){f=1;i=k;while(1){C=i-(i*(1.0-j*c)-k)/(1.0-l*c);g=g*C/i;b=b*C/i;if((f|0)==3)break d;c=g*g+b*b;i=+P(+c);if(!(i!=0.0)){g=0.0;b=0.0;break}else f=f+1|0}}else{g=0.0;b=0.0}while(0);f=a+16|0;h[d>>3]=g/+h[f>>3]+m;h[e>>3]=b/+h[f>>3]+ +h[o>>3];f=0;break}default:f=-1}return f|0}function df(a,b,c,d,e,f){a=a|0;b=+b;c=+c;d=d|0;e=e|0;f=f|0;var g=0.0,i=0.0,j=0.0,k=0.0,l=0.0,m=0.0,n=0.0,o=0.0;switch(f|0){case 4:{j=+h[a+16>>3];k=+h[a+24>>3];n=+h[a+32>>3];l=+h[a+40>>3];o=+h[a+48>>3];m=+h[a+56>>3];i=+h[a+64>>3];b=(b-o)*i/n;i=(c-m)*i/l;g=b*b+i*i;c=+h[a>>3]*g+1.0+g*(+h[a+8>>3]*g);h[d>>3]=o+n*(k*(b*(b*2.0)+g)+(j*2.0*b*i+b*c));h[e>>3]=m+l*(k*2.0*b*i+(j*(g+i*(i*2.0))+i*c));f=0;break}case 3:{i=+h[a>>3];o=+h[a+16>>3];g=(b-i)*o;f=a+8|0;b=o*(c-+h[f>>3]);if(g==0.0&b==0.0){h[d>>3]=i;b=+h[f>>3]}else{o=g*g+b*b;o=1.0-o*(+h[a+32>>3]/1.0e8)-o*(o*(+h[a+40>>3]/1.0e8/1.0e5));h[d>>3]=i+ +h[a+24>>3]*(g*o);b=+h[f>>3]+b*o}h[e>>3]=b;f=0;break}case 2:{i=+h[a>>3];o=+h[a+16>>3];g=(b-i)*o;f=a+8|0;b=o*(c-+h[f>>3]);if(g==0.0&b==0.0){h[d>>3]=i;b=+h[f>>3]}else{o=g*g+b*b;o=1.0-o*(+h[a+24>>3]/1.0e8)-o*(o*(+h[a+32>>3]/1.0e8/1.0e5));h[d>>3]=i+g*o;b=+h[f>>3]+b*o}h[e>>3]=b;f=0;break}case 1:{i=+h[a>>3];o=+h[a+16>>3];g=(b-i)*o;f=a+8|0;b=o*(c-+h[f>>3]);if(g==0.0&b==0.0){h[d>>3]=i;b=+h[f>>3]}else{o=1.0-(g*g+b*b)*(+h[a+24>>3]/1.0e8);h[d>>3]=i+g*o;b=+h[f>>3]+b*o}h[e>>3]=b;f=0;break}default:f=-1}return f|0}function ef(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,g=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0.0;s=i;i=i+256|0;n=s+232|0;m=s+224|0;l=s+216|0;k=s+208|0;j=s+200|0;g=s+192|0;f=s+184|0;p=s+240|0;q=s;do if((a|0)!=0&(b|0)>0&(d|0)!=0){r=_i(a,4854)|0;if(!r){r=qi()|0;c[f>>2]=c[r>>2];c[f+4>>2]=a;Me(3,4857,f);a=ri(c[r>>2]|0)|0;c[g>>2]=5367;c[g+4>>2]=a;Me(3,5361,g);a=-1;break}dj(r,0,2)|0;a:do if(!(Xi(r)|0)){g=gj(r)|0;jj(r);a=0;do{if((a|0)>=4){o=9;break}f=c[2012+(a<<3)+4>>2]|0;a=a+1|0}while(((g|0)%(f|0)|0|0)!=0);do if((o|0)==9)if((a|0)==4){Me(3,4971,l);a=-1;break a}else{f=c[2012+(0<<3)+4>>2]|0;a=0;break}while(0);if((aj(q,f,1,r)|0)!=1){a=qi()|0;c[m>>2]=c[a>>2];Me(3,5051,m);a=ri(c[a>>2]|0)|0;c[n>>2]=5367;c[n+4>>2]=a;Me(3,5361,n);a=-1;break}l=q+176|0;c[l>>2]=a;ff(q);m=(a|0)==1;n=q+120|0;if(m){t=+h[n>>3];k=q+128|0;h[n>>3]=+h[k>>3];h[k>>3]=t}else k=q+128|0;ik(d|0,q|0,184)|0;c[p>>2]=e;f=d+176|0;if((b|0)>1){j=1;while(1){e=(c[p>>2]|0)+(4-1)&~(4-1);g=c[e>>2]|0;c[p>>2]=e+4;c[g+176>>2]=c[f>>2];if((aj(q,c[2012+((c[f>>2]|0)+-1<<3)+4>>2]|0,1,r)|0)!=1){a=-1;break a}c[l>>2]=a;ff(q);if(m){t=+h[n>>3];h[n>>3]=+h[k>>3];h[k>>3]=t}ik(g|0,q|0,184)|0;j=j+1|0;if((j|0)>=(b|0)){a=0;break}}}else a=0}else{a=qi()|0;c[j>>2]=c[a>>2];Me(3,4926,j);a=ri(c[a>>2]|0)|0;c[k>>2]=5367;c[k+4>>2]=a;Me(3,5361,k);a=-1}while(0);Wi(r)|0}else a=-1;while(0);i=s;return a|0}function ff(a){a=a|0;var b=0,d=0,e=0,f=0,g=0;g=i;i=i+192|0;f=g;hf(a,f);hf(a+4|0,f+4|0);b=0;do{gf(a+8+(b<<5)|0,f+8+(b<<5)|0);gf(a+8+(b<<5)+8|0,f+8+(b<<5)+8|0);gf(a+8+(b<<5)+16|0,f+8+(b<<5)+16|0);gf(a+8+(b<<5)+24|0,f+8+(b<<5)+24|0);b=b+1|0}while((b|0)!=3);d=a+176|0;e=0;do{gf(a+104+(e<<3)|0,f+104+(e<<3)|0);e=e+1|0;b=c[d>>2]|0}while((e|0)<(c[2012+(b+-1<<3)>>2]|0));c[f+176>>2]=b;ik(a|0,f|0,184)|0;i=g;return}function gf(b,c){b=b|0;c=c|0;a[c>>0]=a[b+7>>0]|0;a[c+1>>0]=a[b+6>>0]|0;a[c+2>>0]=a[b+5>>0]|0;a[c+3>>0]=a[b+4>>0]|0;a[c+4>>0]=a[b+3>>0]|0;a[c+5>>0]=a[b+2>>0]|0;a[c+6>>0]=a[b+1>>0]|0;a[c+7>>0]=a[b>>0]|0;return}function hf(b,c){b=b|0;c=c|0;a[c>>0]=a[b+3>>0]|0;a[c+1>>0]=a[b+2>>0]|0;a[c+2>>0]=a[b+1>>0]|0;a[c+3>>0]=a[b>>0]|0;return}function jf(a,b){a=a|0;b=b|0;var d=0,e=0,f=0.0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0.0;x=i;i=i+64|0;t=x+24|0;u=x+16|0;v=x+8|0;w=x;q=Uj(208)|0;if(!q){Me(3,5472,x+32|0);rb(1)}ik(q|0,a|0,184)|0;s=b<<1;r=(c[a>>2]|0)+s|0;c[q+192>>2]=r;s=(c[a+4>>2]|0)+s|0;c[q+196>>2]=s;c[q+200>>2]=b;c[q+204>>2]=b;d=$(r<<3,s)|0;e=Uj(d)|0;c[q+184>>2]=e;if(!e){Me(3,5472,x+40|0);rb(1)}d=Uj(d)|0;c[q+188>>2]=d;if(!d){Me(3,5472,x+48|0);rb(1)}p=a+104|0;m=c[a+176>>2]|0;n=(r|0)>0?r<<1:0;if((s|0)>0){o=(r|0)>0;l=0;while(1){f=+(l-b|0);if(o){a=0;j=e;k=d;while(1){y=+(a-b|0);df(p,y,f,v,w,m)|0;g[j>>2]=+h[v>>3];g[j+4>>2]=+h[w>>3];cf(p,y,f,t,u,m)|0;g[k>>2]=+h[t>>3];g[k+4>>2]=+h[u>>3];a=a+1|0;if((a|0)>=(r|0))break;else{j=j+8|0;k=k+8|0}}}d=d+(n<<2)|0;l=l+1|0;if((l|0)>=(s|0))break;else e=e+(n<<2)|0}}i=x;return q|0}function kf(a){a=a|0;var b=0;if((a|0)!=0?(b=c[a>>2]|0,(b|0)!=0):0){Vj(c[b+184>>2]|0);Vj(c[(c[a>>2]|0)+188>>2]|0);Vj(c[a>>2]|0);c[a>>2]=0;b=0}else b=-1;return b|0}function lf(a,b,d,e,f){a=a|0;b=+b;d=+d;e=e|0;f=f|0;var g=0,h=0,i=0;h=(c[a+16>>2]|0)+~~(b+.5)|0;g=(c[a+20>>2]|0)+~~(d+.5)|0;if(((h|0)>=0?(i=c[a+8>>2]|0,!((g|0)<0|(h|0)>=(i|0))):0)?(g|0)<(c[a+12>>2]|0):0){a=c[a>>2]|0;g=($(i,g)|0)+h<<1;c[e>>2]=c[a+(g<<2)>>2];c[f>>2]=c[a+((g|1)<<2)>>2];g=0}else g=-1;return g|0}function mf(a,b,d,e,f){a=a|0;b=+b;d=+d;e=e|0;f=f|0;var g=0,h=0,i=0;h=(c[a+16>>2]|0)+~~(b+.5)|0;g=(c[a+20>>2]|0)+~~(d+.5)|0;if(((h|0)>=0?(i=c[a+8>>2]|0,!((g|0)<0|(h|0)>=(i|0))):0)?(g|0)<(c[a+12>>2]|0):0){a=c[a+4>>2]|0;g=($(i,g)|0)+h<<1;c[e>>2]=c[a+(g<<2)>>2];c[f>>2]=c[a+((g|1)<<2)>>2];g=0}else g=-1;return g|0}function nf(a){a=a|0;var b=0,d=0;b=Uj(8)|0;do if(b){d=Uj(a<<3)|0;c[b>>2]=d;if(!d){Vj(b);b=0;break}else{c[b+4>>2]=a;break}}else b=0;while(0);return b|0}function of(a){a=a|0;Vj(c[a>>2]|0);Vj(a);return 0}function pf(a){a=a|0;var b=0.0,d=0,e=0.0,f=0,g=0;b=+P(+(+qf(a,a)));if(b!=0.0){f=c[a>>2]|0;e=+h[f>>3];b=e<0.0?-b:b;e=e+b;h[f>>3]=e;e=1.0/+P(+(e*b));a=c[a+4>>2]|0;if((a|0)>0){d=0;do{g=f+(d<<3)|0;h[g>>3]=e*+h[g>>3];d=d+1|0}while((d|0)<(a|0))}}return +-b}function qf(a,b){a=a|0;b=b|0;var d=0.0,e=0,f=0;f=c[a+4>>2]|0;if((f|0)!=(c[b+4>>2]|0))rb(0);if((f|0)>0){e=c[a>>2]|0;a=c[b>>2]|0;b=0;d=0.0;do{d=d+ +h[e+(b<<3)>>3]*+h[a+(b<<3)>>3];b=b+1|0}while((b|0)<(f|0))}else d=0.0;return +d}function rf(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,j=0.0,k=0,l=0,m=0,n=0,o=0,p=0,q=0.0,r=0.0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E+8|0;D=E;w=c[a+8>>2]|0;if(((w|0)==(c[a+4>>2]|0)?(w|0)==(c[b+4>>2]|0):0)?(w|0)==((c[d+4>>2]|0)+1|0):0){z=w+-2|0;A=C+4|0;B=D+4|0;if((w|0)>2){s=w+-1|0;t=0;do{o=$(t,w)|0;p=c[a>>2]|0;h[(c[b>>2]|0)+(t<<3)>>3]=+h[p+(o+t<<3)>>3];k=w-t+-1|0;c[A>>2]=k;u=t;t=t+1|0;l=p+(o+t<<3)|0;c[C>>2]=l;r=+pf(C);h[(c[d>>2]|0)+(u<<3)>>3]=r;if(!(r==0.0)){if((t|0)<(w|0)){m=c[b>>2]|0;n=t;do{if((t|0)<(n|0)){e=c[a>>2]|0;f=t;j=0.0;do{r=+h[e+(($(f,w)|0)+n<<3)>>3];j=j+r*+h[p+(f+o<<3)>>3];f=f+1|0}while((f|0)<(n|0))}else j=0.0;e=$(n,w)|0;if((n|0)<(w|0)){f=c[a>>2]|0;g=n;do{j=j+ +h[f+(g+e<<3)>>3]*+h[p+(g+o<<3)>>3];g=g+1|0}while((g|0)<(w|0))}h[m+(n<<3)>>3]=j;n=n+1|0}while((n|0)<(w|0))}c[B>>2]=k;c[A>>2]=k;c[C>>2]=l;c[D>>2]=(c[b>>2]|0)+(t<<3);j=+qf(C,D)*.5;if((s|0)>(u|0)){e=c[b>>2]|0;k=s;do{q=+h[p+(k+o<<3)>>3];f=e+(k<<3)|0;r=+h[f>>3]-j*q;h[f>>3]=r;f=$(k,w)|0;if((k|0)<(w|0)){g=c[a>>2]|0;l=k;do{n=g+(l+f<<3)|0;h[n>>3]=+h[n>>3]-(q*+h[e+(l<<3)>>3]+r*+h[p+(l+o<<3)>>3]);l=l+1|0}while((l|0)<(w|0))}k=k+-1|0}while((k|0)>(u|0))}}}while((t|0)<(z|0))}if((w|0)<=1){if((w|0)>0){f=0;g=c[a>>2]|0;e=c[b>>2]|0;v=27}}else{v=$(z,w)|0;g=c[a>>2]|0;e=c[b>>2]|0;h[e+(z<<3)>>3]=+h[g+(v+z<<3)>>3];f=w+-1|0;h[(c[d>>2]|0)+(z<<3)>>3]=+h[g+(f+v<<3)>>3];v=27}if((v|0)==27)h[e+(f<<3)>>3]=+h[g+(($(f,w)|0)+f<<3)>>3];if((w|0)>0){m=(w|0)>0;p=w;do{d=p;p=p+-1|0;n=$(p,w)|0;o=c[a>>2]|0;if((d|0)<=(z|0)?(x=w-p+-1|0,y=o+(n+d<<3)|0,(d|0)<(w|0)):0){e=(d|0)<(w|0);k=d;do{c[B>>2]=x;c[A>>2]=x;c[C>>2]=y;f=$(k,w)|0;c[D>>2]=(c[a>>2]|0)+(f+d<<3);j=+qf(C,D);if(e){g=c[a>>2]|0;l=d;do{v=g+(l+f<<3)|0;h[v>>3]=+h[v>>3]-j*+h[o+(l+n<<3)>>3];l=l+1|0}while((l|0)<(w|0))}k=k+1|0}while((k|0)<(w|0))}if(m){e=0;do{h[o+(e+n<<3)>>3]=0.0;e=e+1|0}while((e|0)<(w|0))}h[o+(n+p<<3)>>3]=1.0}while((d|0)>1);e=0}else e=0}else e=-1;i=E;return e|0}function sf(a,b,c){a=a|0;b=b|0;c=c|0;var d=0.0,e=0.0,f=0.0,g=0.0,i=0.0;f=+h[c>>3];g=+h[c+8>>3];e=+h[c+16>>3];d=+h[b+88>>3]+(f*+h[b+64>>3]+g*+h[b+72>>3]+e*+h[b+80>>3]);if(d==0.0)c=-1;else{i=+h[b+56>>3]+(f*+h[b+32>>3]+g*+h[b+40>>3]+e*+h[b+48>>3]);h[a>>3]=(+h[b+24>>3]+(f*+h[b>>3]+g*+h[b+8>>3]+e*+h[b+16>>3]))/d;h[a+8>>3]=i/d;c=0}return c|0}function tf(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0.0,g=0.0,j=0.0,k=0.0,l=0.0,m=0.0,n=0.0,o=0.0,p=0.0,q=0.0,r=0.0,s=0.0,t=0,u=0,v=0.0,w=0,x=0,y=0,z=0,A=0,B=0,C=0.0,D=0.0,E=0.0,F=0.0,G=0.0,H=0.0,I=0.0,J=0.0,K=0.0;B=i;i=i+1072|0;y=B+1056|0;x=B+768|0;w=B+192|0;A=B+48|0;z=B;K=+h[d>>3];F=+h[e>>3];s=K*F;J=+h[d+8>>3];t=e+8|0;E=+h[t>>3];v=J*E;j=+h[d+16>>3];G=+h[e+16>>3];l=j*G;m=+h[d+24>>3];I=+h[d+32>>3];H=+h[d+40>>3];n=E*H;k=+h[d+48>>3];o=G*k;p=+h[d+56>>3];D=+h[d+64>>3];C=+h[d+72>>3];q=E*C;f=+h[d+80>>3];r=G*f;g=+h[d+88>>3];h[x>>3]=s;h[x+8>>3]=K*E;h[x+16>>3]=K*G;h[x+24>>3]=F*J;h[x+32>>3]=v;h[x+40>>3]=G*J;h[x+48>>3]=F*j;h[x+56>>3]=E*j;h[x+64>>3]=l;h[x+72>>3]=K;h[x+80>>3]=J;h[x+88>>3]=j;j=F*I;h[x+96>>3]=j;h[x+104>>3]=E*I;h[x+112>>3]=G*I;h[x+120>>3]=F*H;h[x+128>>3]=n;h[x+136>>3]=G*H;h[x+144>>3]=F*k;h[x+152>>3]=E*k;h[x+160>>3]=o;h[x+168>>3]=I;h[x+176>>3]=H;h[x+184>>3]=k;k=D*F;h[x+192>>3]=k;h[x+200>>3]=E*D;h[x+208>>3]=G*D;h[x+216>>3]=F*C;E=+h[t>>3];h[x+224>>3]=C*E;h[x+232>>3]=G*C;h[x+240>>3]=F*f;h[x+248>>3]=E*f;h[x+256>>3]=r;h[x+264>>3]=D;h[x+272>>3]=C;h[x+280>>3]=f;e=w+64|0;d=w;t=d+64|0;do{c[d>>2]=0;d=d+4|0}while((d|0)<(t|0));h[e>>3]=-1.0;e=w+72|0;c[e>>2]=0;c[e+4>>2]=0;c[e+8>>2]=0;c[e+12>>2]=0;c[e+16>>2]=0;c[e+20>>2]=0;c[e+24>>2]=0;c[e+28>>2]=0;h[w+104>>3]=1.0;e=w+160|0;d=w+112|0;t=d+48|0;do{c[d>>2]=0;d=d+4|0}while((d|0)<(t|0));h[e>>3]=1.0;e=w+240|0;d=w+168|0;t=d+72|0;do{c[d>>2]=0;d=d+4|0}while((d|0)<(t|0));h[e>>3]=-1.0;e=w+296|0;d=w+248|0;t=d+48|0;do{c[d>>2]=0;d=d+4|0}while((d|0)<(t|0));h[e>>3]=-1.0;e=w+304|0;c[e>>2]=0;c[e+4>>2]=0;c[e+8>>2]=0;c[e+12>>2]=0;c[e+16>>2]=0;c[e+20>>2]=0;c[e+24>>2]=0;c[e+28>>2]=0;h[w+336>>3]=1.0;e=w+456|0;d=w+344|0;t=d+112|0;do{c[d>>2]=0;d=d+4|0}while((d|0)<(t|0));h[e>>3]=1.0;e=w+512|0;d=w+464|0;t=d+48|0;do{c[d>>2]=0;d=d+4|0}while((d|0)<(t|0));h[e>>3]=1.0;e=w+568|0;d=w+520|0;t=d+48|0;do{c[d>>2]=0;d=d+4|0}while((d|0)<(t|0));h[e>>3]=1.0;u=0;do{t=0;do{d=A+(u*48|0)+(t<<3)|0;h[d>>3]=0.0;f=0.0;e=0;do{f=f+ +h[x+(u*96|0)+(e<<3)>>3]*+h[w+(e*48|0)+(t<<3)>>3];e=e+1|0}while((e|0)!=12);h[d>>3]=f;t=t+1|0}while((t|0)!=6);u=u+1|0}while((u|0)!=3);J=m+(s+v+l);K=p+(j+n+o);f=g+(k+q+r);g=+h[b>>3];j=+h[b+8>>3];k=+h[b+16>>3];l=+h[b+24>>3]+(J*g+K*j+f*k);m=+h[b+32>>3];n=+h[b+40>>3];o=+h[b+48>>3];p=+h[b+56>>3]+(J*m+K*n+f*o);q=+h[b+64>>3];r=+h[b+72>>3];s=+h[b+80>>3];f=+h[b+88>>3]+(J*q+K*r+f*s);if(f==0.0){Me(3,5089,y);e=-1}else{K=f*f;h[z>>3]=(g*f-l*q)/K;h[z+8>>3]=(f*j-l*r)/K;h[z+16>>3]=(f*k-l*s)/K;h[z+24>>3]=(f*m-p*q)/K;h[z+32>>3]=(f*n-p*r)/K;h[z+40>>3]=(f*o-p*s)/K;d=0;do{f=+h[z+(d*24|0)>>3];g=+h[z+(d*24|0)+8>>3];j=+h[z+(d*24|0)+16>>3];e=0;do{y=a+(d*48|0)+(e<<3)|0;h[y>>3]=0.0;K=f*+h[A+(e<<3)>>3]+0.0;h[y>>3]=K;K=K+g*+h[A+48+(e<<3)>>3];h[y>>3]=K;h[y>>3]=K+j*+h[A+96+(e<<3)>>3];e=e+1|0}while((e|0)!=6);d=d+1|0}while((d|0)!=2);e=0}i=B;return e|0}function uf(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,j=0;j=i;i=i+48|0;h=j+24|0;g=j+12|0;f=j;c[h+4>>2]=6;c[h+8>>2]=1;c[h>>2]=a;c[g+4>>2]=e;c[g+8>>2]=1;c[g>>2]=b;c[f+4>>2]=e;c[f+8>>2]=6;c[f>>2]=d;b=Ue(f)|0;do if(b){a=Te(b,f)|0;if(!a){We(b)|0;d=-1;break}d=Te(b,g)|0;if(!d){We(b)|0;We(a)|0;d=-1;break}if((_e(a)|0)<0){We(b)|0;We(a)|0;We(d)|0;d=-1;break}else{Xe(h,a,d)|0;We(b)|0;We(a)|0;We(d)|0;d=0;break}}else d=-1;while(0);i=j;return d|0}function vf(a,b){a=a|0;b=b|0;var c=0.0,d=0.0,e=0.0,f=0,g=0.0,j=0.0,k=0.0,l=0,m=0,n=0,o=0.0,p=0.0,q=0.0,r=0.0,s=0.0,t=0.0,u=0.0;n=i;i=i+192|0;l=n+96|0;m=n;g=+h[b>>3];k=+h[b+8>>3];d=+h[b+16>>3];c=g*g+k*k+d*d;if(c==0.0){j=0.0;e=0.0;d=1.0;c=0.0}else{c=+P(+c);j=c;e=d/c;d=g/c;c=k/c}u=+h[b+24>>3];r=+h[b+32>>3];k=+h[b+40>>3];o=+R(+j);g=1.0-o;j=+S(+j);h[l>>3]=o+d*d*g;t=c*d*g;s=e*j;h[l+8>>3]=t-s;q=d*e*g;p=c*j;h[l+16>>3]=q+p;h[l+24>>3]=u;h[l+32>>3]=t+s;h[l+40>>3]=o+c*c*g;c=c*e*g;j=d*j;h[l+48>>3]=c-j;h[l+56>>3]=r;h[l+64>>3]=q-p;h[l+72>>3]=c+j;h[l+80>>3]=o+e*e*g;h[l+88>>3]=k;f=0;do{c=+h[a+(f<<5)>>3];d=+h[a+(f<<5)+8>>3];e=+h[a+(f<<5)+16>>3];b=0;do{h[m+(f<<5)+(b<<3)>>3]=c*+h[l+(b<<3)>>3]+d*+h[l+32+(b<<3)>>3]+e*+h[l+64+(b<<3)>>3];b=b+1|0}while((b|0)!=4);b=m+(f<<5)+24|0;h[b>>3]=+h[a+(f<<5)+24>>3]+ +h[b>>3];f=f+1|0}while((f|0)!=3);b=0;do{h[a+(b<<5)>>3]=+h[m+(b<<5)>>3];h[a+(b<<5)+8>>3]=+h[m+(b<<5)+8>>3];h[a+(b<<5)+16>>3]=+h[m+(b<<5)+16>>3];h[a+(b<<5)+24>>3]=+h[m+(b<<5)+24>>3];b=b+1|0}while((b|0)!=3);i=n;return 0}function wf(a){a=a|0;var b=0,d=0;b=Uj(136)|0;if(!b)b=0;else{d=0;do{h[b+(d<<5)>>3]=+h[a+(d<<5)>>3];h[b+(d<<5)+8>>3]=+h[a+(d<<5)+8>>3];h[b+(d<<5)+16>>3]=+h[a+(d<<5)+16>>3];h[b+(d<<5)+24>>3]=+h[a+(d<<5)+24>>3];d=d+1|0}while((d|0)!=3);c[b+96>>2]=10;h[b+104>>3]=.10000000149011612;h[b+112>>3]=.9900000095367432;h[b+120>>3]=4.0;h[b+128>>3]=.5}return b|0}function xf(a){a=a|0;var b=0;b=c[a>>2]|0;if(!b)b=-1;else{Vj(b);c[a>>2]=0;b=0}return b|0}function yf(a,b){a=a|0;b=+b;if(!a)a=-1;else{h[a+128>>3]=b;a=0}return a|0}function zf(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0,j=0.0,k=0,l=0,m=0.0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0.0,A=0.0;y=i;i=i+176|0;l=y+168|0;k=y+160|0;u=y+48|0;w=y+64|0;v=y;s=b+8|0;g=c[s>>2]|0;do if((g|0)>=3){x=Uj(g*96|0)|0;if(!x){Me(3,5109,k);g=-1;break}t=Uj(g<<4)|0;if(!t){Me(3,5109,l);Vj(x);g=-1;break}else g=0;do{h[e+(g<<5)>>3]=+h[d+(g<<5)>>3];h[e+(g<<5)+8>>3]=+h[d+(g<<5)+8>>3];h[e+(g<<5)+16>>3]=+h[d+(g<<5)+16>>3];h[e+(g<<5)+24>>3]=+h[d+(g<<5)+24>>3];g=g+1|0}while((g|0)!=3);q=b+4|0;l=u+8|0;d=a+104|0;n=a+120|0;o=a+112|0;p=a+96|0;m=0.0;r=0;a:while(1){Ne(a,e,w)|0;g=c[s>>2]|0;if((g|0)>0){j=0.0;k=0;do{if((sf(u,w,(c[q>>2]|0)+(k*24|0)|0)|0)<0){k=10;break a}g=c[b>>2]|0;A=+h[g+(k<<4)>>3]-+h[u>>3];z=+h[g+(k<<4)+8>>3]-+h[l>>3];j=j+(A*A+z*z);g=k<<1;h[t+(g<<3)>>3]=A;h[t+((g|1)<<3)>>3]=z;k=k+1|0;g=c[s>>2]|0}while((k|0)<(g|0))}else j=0.0;j=j/+(g|0);if(j<+h[d>>3]){k=24;break}if(((r|0)>0?j<+h[n>>3]:0)?j/m>+h[o>>3]:0){k=24;break}if((r|0)==(c[p>>2]|0)){k=24;break}if((g|0)>0){k=0;do{if((tf(x+(k*12<<3)|0,a,e,(c[q>>2]|0)+(k*24|0)|0)|0)<0){k=20;break a}k=k+1|0;g=c[s>>2]|0}while((k|0)<(g|0))}if((uf(v,t,x,g<<1)|0)<0){k=22;break}vf(e,v)|0;m=j;r=r+1|0}if((k|0)==10){Af(x,t);g=-1;break}else if((k|0)==20){Af(x,t);g=-1;break}else if((k|0)==22){Af(x,t);g=-1;break}else if((k|0)==24){h[f>>3]=j;Vj(x);Vj(t);g=0;break}}else g=-1;while(0);i=y;return g|0}function Af(a,b){a=a|0;b=b|0;Vj(a);Vj(b);return}function Bf(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0,j=0.0,k=0,l=0,m=0,n=0,o=0,p=0.0,q=0.0,r=0.0,s=0.0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0,G=0;G=i;i=i+192|0;n=G+184|0;m=G+176|0;l=G+168|0;g=G+160|0;B=G+48|0;D=G+64|0;C=G;A=b+8|0;k=c[A>>2]|0;do if((k|0)>=4){o=~~(+(k|0)*+h[a+128>>3])+-1|0;o=(o|0)<3?3:o;F=Uj(k*96|0)|0;if(!F){Me(3,5109,g);g=-1;break}E=Uj(k<<4)|0;if(!E){Me(3,5109,l);Vj(F);g=-1;break}g=k<<3;z=Uj(g)|0;if(!z){Me(3,5109,m);Vj(F);Vj(E);g=-1;break}y=Uj(g)|0;if(!y){Me(3,5109,n);Vj(F);Vj(E);Vj(z);g=-1;break}else g=0;do{h[e+(g<<5)>>3]=+h[d+(g<<5)>>3];h[e+(g<<5)+8>>3]=+h[d+(g<<5)+8>>3];h[e+(g<<5)+16>>3]=+h[d+(g<<5)+16>>3];h[e+(g<<5)+24>>3]=+h[d+(g<<5)+24>>3];g=g+1|0}while((g|0)!=3);w=b+4|0;x=B+8|0;n=y+(o<<3)|0;d=a+104|0;o=a+120|0;t=a+112|0;u=a+96|0;r=0.0;v=0;a:while(1){Ne(a,e,D)|0;g=c[A>>2]|0;if((g|0)>0){k=0;do{if((sf(B,D,(c[w>>2]|0)+(k*24|0)|0)|0)<0){k=14;break a}g=c[b>>2]|0;q=+h[g+(k<<4)>>3]-+h[B>>3];s=+h[g+(k<<4)+8>>3]-+h[x>>3];g=k<<1;h[E+(g<<3)>>3]=q;h[E+((g|1)<<3)>>3]=s;s=q*q+s*s;h[y+(k<<3)>>3]=s;h[z+(k<<3)>>3]=s;k=k+1|0;g=c[A>>2]|0}while((k|0)<(g|0))}rj(y,g,8,1);s=+h[n>>3]*4.0;s=s<16.0?16.0:s;k=c[A>>2]|0;q=s/6.0;if((k|0)>0){j=0.0;g=0;do{p=+h[y+(g<<3)>>3];if(p>s)p=q;else{p=1.0-p/s;p=q*(1.0-p*(p*p))}j=j+p;g=g+1|0}while((g|0)<(k|0))}else j=0.0;j=j/+(k|0);if(j<+h[d>>3]){k=36;break}if(((v|0)>0?j<+h[o>>3]:0)?j/r>+h[t>>3]:0){k=36;break}if((v|0)==(c[u>>2]|0)){k=36;break}if((k|0)>0){m=0;g=0;do{p=+h[z+(m<<3)>>3];if(p<=s){k=g*6|0;l=F+(k<<3)|0;if((tf(l,a,e,(c[w>>2]|0)+(m*24|0)|0)|0)<0){k=28;break a}r=1.0-p/s;r=r*r;h[l>>3]=+h[l>>3]*r;l=F+((k|1)<<3)|0;h[l>>3]=+h[l>>3]*r;l=F+(k+2<<3)|0;h[l>>3]=r*+h[l>>3];l=F+(k+3<<3)|0;h[l>>3]=r*+h[l>>3];l=F+(k+4<<3)|0;h[l>>3]=r*+h[l>>3];l=F+(k+5<<3)|0;h[l>>3]=r*+h[l>>3];l=F+(k+6<<3)|0;h[l>>3]=r*+h[l>>3];l=F+(k+7<<3)|0;h[l>>3]=r*+h[l>>3];l=F+(k+8<<3)|0;h[l>>3]=r*+h[l>>3];l=F+(k+9<<3)|0;h[l>>3]=r*+h[l>>3];l=F+(k+10<<3)|0;h[l>>3]=r*+h[l>>3];k=F+(k+11<<3)|0;h[k>>3]=r*+h[k>>3];k=m<<1;h[E+(g<<3)>>3]=r*+h[E+(k<<3)>>3];h[E+(g+1<<3)>>3]=r*+h[E+((k|1)<<3)>>3];k=c[A>>2]|0;g=g+2|0}m=m+1|0}while((m|0)<(k|0))}else g=0;if((g|0)<6){k=32;break}if((uf(C,E,F,g)|0)<0){k=34;break}vf(e,C)|0;r=j;v=v+1|0}if((k|0)==14){Cf(F,E,z,y);g=-1;break}else if((k|0)==28){Cf(F,E,z,y);g=-1;break}else if((k|0)==32){Cf(F,E,z,y);g=-1;break}else if((k|0)==34){Cf(F,E,z,y);g=-1;break}else if((k|0)==36){h[f>>3]=j;Vj(F);Vj(E);Vj(z);Vj(y);g=0;break}}else g=-1;while(0);i=G;return g|0}function Cf(a,b,c,d){a=a|0;b=b|0;c=c|0;d=d|0;Vj(a);Vj(b);Vj(c);Vj(d);return}function Df(a,b){a=a|0;b=b|0;var c=0.0;c=+h[a>>3]-+h[b>>3];return (c<0.0?-1:c>0.0&1)|0}function Ef(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0,j=0.0,k=0.0,l=0,m=0.0,n=0.0,o=0,p=0.0,q=0.0,r=0.0,s=0.0,t=0.0,u=0,v=0.0,w=0,x=0,y=0,z=0,A=0.0,B=0,C=0,D=0,E=0.0,F=0.0,G=0.0,H=0.0,I=0.0,J=0.0,K=0.0,L=0.0,M=0.0,N=0.0,O=0.0,Q=0.0,R=0.0,S=0.0,T=0.0,U=0,V=0,W=0,X=0,Y=0,Z=0;U=i;i=i+64|0;D=U+48|0;z=U+40|0;y=U+32|0;x=U+24|0;u=U+16|0;o=U+8|0;l=U;a:do if((e|0)>=4){g=0;while(1){if((g|0)>=(e|0))break;if(+h[d+(g*24|0)+16>>3]!=0.0){g=-1;break a}else g=g+1|0}if((((((((!(+h[a>>3]==0.0)?!(+h[a+32>>3]!=0.0):0)?(B=a+40|0,!(+h[B>>3]==0.0)):0)?!(+h[a+64>>3]!=0.0):0)?!(+h[a+72>>3]!=0.0):0)?!(+h[a+80>>3]!=1.0):0)?!(+h[a+24>>3]!=0.0):0)?!(+h[a+56>>3]!=0.0):0)?!(+h[a+88>>3]!=0.0):0){g=e<<1;C=Re(g,8)|0;if(!C){Me(3,5124,l);g=-1;break}w=Re(g,1)|0;if(!w){We(C)|0;Me(3,5150,o);g=-1;break}if(e){g=c[C>>2]|0;l=c[w>>2]|0;o=0;do{Z=d+(o*24|0)|0;V=o<<4;h[g+(V<<3)>>3]=+h[Z>>3];Y=d+(o*24|0)+8|0;h[g+((V|1)<<3)>>3]=+h[Y>>3];h[g+((V|2)<<3)>>3]=1.0;h[g+((V|3)<<3)>>3]=0.0;h[g+((V|4)<<3)>>3]=0.0;h[g+((V|5)<<3)>>3]=0.0;X=b+(o<<4)|0;h[g+((V|6)<<3)>>3]=-(+h[Z>>3]*+h[X>>3]);h[g+((V|7)<<3)>>3]=-(+h[Y>>3]*+h[X>>3]);h[g+((V|8)<<3)>>3]=0.0;h[g+((V|9)<<3)>>3]=0.0;h[g+((V|10)<<3)>>3]=0.0;h[g+((V|11)<<3)>>3]=+h[Z>>3];h[g+((V|12)<<3)>>3]=+h[Y>>3];h[g+((V|13)<<3)>>3]=1.0;W=b+(o<<4)+8|0;h[g+((V|14)<<3)>>3]=-(+h[Z>>3]*+h[W>>3]);h[g+((V|15)<<3)>>3]=-(+h[Y>>3]*+h[W>>3]);V=o<<1;h[l+(V<<3)>>3]=+h[X>>3];h[l+((V|1)<<3)>>3]=+h[W>>3];o=o+1|0}while((o|0)!=(e|0))}e=Ue(C)|0;if(!e){We(C)|0;We(w)|0;Me(3,5176,u);g=-1;break}o=Te(e,C)|0;if(!o){We(C)|0;We(w)|0;We(e)|0;Me(3,5202,x);g=-1;break}l=Te(e,w)|0;if(!l){We(C)|0;We(w)|0;We(e)|0;We(o)|0;Me(3,5228,y);g=-1;break}if((_e(o)|0)<0){We(C)|0;We(w)|0;We(e)|0;We(o)|0;We(l)|0;Me(3,5254,z);g=-1;break}g=Te(o,l)|0;if(!g){We(C)|0;We(w)|0;We(e)|0;We(o)|0;We(l)|0;Me(3,5280,D);g=-1;break}Z=c[g>>2]|0;p=+h[Z+48>>3];S=+h[a+48>>3];t=+h[B>>3];j=(+h[Z+24>>3]-p*S)/t;s=+h[a+16>>3];T=+h[a+8>>3];r=+h[a>>3];q=(+h[Z>>3]-p*s-j*T)/r;k=+h[Z+56>>3];m=(+h[Z+32>>3]-S*k)/t;n=(+h[Z+8>>3]-s*k-T*m)/r;t=(+h[Z+40>>3]-S)/t;r=(+h[Z+16>>3]-s-T*t)/r;We(C)|0;We(w)|0;We(e)|0;We(o)|0;We(l)|0;We(g)|0;T=+P(+(p*p+(j*j+q*q)));s=+P(+(k*k+(m*m+n*n)));q=q/T;j=j/T;p=p/T;n=n/s;m=m/s;k=k/s;s=(T+s)*.5;r=r/s;T=1.0/s;if(T<0.0){O=-j;k=-k;m=-m;p=-p;n=-n;Q=-q;S=-r;R=-T}else{O=j;Q=q;S=r;R=t/s}j=k*O-m*p;q=n*p-k*Q;r=m*Q-n*O;s=+P(+(r*r+(j*j+q*q)));do if(!(s==0.0)){t=j/s;q=q/s;j=r/s;N=k*p+(m*O+n*Q);N=N<0.0?-N:N;N=(+P(+(N+1.0))+ +P(+(1.0-N)))*.5;if(Q*q-O*t!=0.0){g=0;E=Q;v=O;F=p;I=t;H=q}else{Z=Q*j-p*t!=0.0;g=Z?1:2;E=Z?Q:p;v=Z?p:O;F=Z?O:Q;I=Z?t:j;H=Z?j:q;j=Z?q:t}r=E*H;s=v*I;q=r-s;if(q==0.0){q=O;j=Q;break}G=(v*j-F*H)/q;A=N*H/q;r=s-r;q=(E*j-F*I)/r;r=N*I/r;s=G*G+q*q+1.0;t=G*A+q*r;v=t*t-s*(A*A+r*r+-1.0);if(v<0.0){q=O;j=Q;break}M=+P(+v);L=(M-t)/s;F=A+G*L;K=r+q*L;M=(-t-M)/s;G=A+G*M;r=r+q*M;Z=(g|0)==1;q=Z?H:j;s=Z?j:H;J=Z?L:K;L=Z?K:L;K=Z?M:r;H=Z?r:M;Z=(g|0)==2&(Z^1);r=Z?I:q;q=Z?q:I;M=Z?L:F;L=Z?F:L;j=Z?H:G;I=Z?G:H;if(n*s-m*q!=0.0){g=0;E=n;v=m;F=k;H=q;A=s}else{Z=n*r-k*q!=0.0;g=Z?1:2;E=Z?n:k;v=Z?k:m;F=Z?m:n;H=Z?q:r;A=Z?r:s;r=Z?s:q}s=E*A;t=v*H;q=s-t;if(q==0.0){q=O;j=Q;break}G=(v*r-F*A)/q;A=N*A/q;q=t-s;v=(E*r-F*H)/q;q=N*H/q;r=G*G+v*v+1.0;s=G*A+v*q;t=s*s-r*(A*A+q*q+-1.0);if(t<0.0){q=O;j=Q;break}t=+P(+t);k=(t-s)/r;Q=A+G*k;O=q+v*k;t=(-s-t)/r;p=A+G*t;n=q+v*t;Z=(g|0)==1;m=Z?k:O;k=Z?O:k;v=Z?t:n;t=Z?n:t;Z=(g|0)==2&(Z^1);n=Z?k:Q;k=Z?Q:k;A=Z?t:p;t=Z?p:t;p=L*k+(J*m+M*n);p=p<0.0?-p:p;q=L*t+(J*v+M*A);q=q<0.0?-q:q;r=I*k+(K*m+j*n);r=r<0.0?-r:r;s=I*t+(K*v+j*A);s=s<0.0?-s:s;if(p<q)if(p<r){if(p<s){q=J;p=L;j=M;break}q=K;k=t;m=v;p=I;n=A;break}else{if(r<s){q=K;p=I;break}q=K;k=t;m=v;p=I;n=A;break}else if(q<r){if(q<s){q=J;k=t;m=v;p=L;n=A;j=M;break}q=K;k=t;m=v;p=I;n=A;break}else{if(r<s){q=K;p=I;break}q=K;k=t;m=v;p=I;n=A;break}}else{q=O;j=Q}while(0);M=k*q-m*p;N=n*p-k*j;O=m*j-n*q;Q=+P(+(O*O+(M*M+N*N)));h[f>>3]=j;h[f+32>>3]=q;h[f+64>>3]=p;h[f+8>>3]=n;h[f+40>>3]=m;h[f+72>>3]=k;h[f+16>>3]=M/Q;h[f+48>>3]=N/Q;h[f+80>>3]=O/Q;h[f+24>>3]=S;h[f+56>>3]=R;h[f+88>>3]=T;g=0}else g=-1}else g=-1;while(0);i=U;return g|0}function Ff(a){a=a|0;Vj(c[a>>2]|0);Vj(a);return 0}function Gf(a,b,c,d){a=a|0;b=b|0;c=c|0;d=d|0;return +(+If(a,b,c,d,0))}function Hf(a,b,c,d){a=a|0;b=b|0;c=c|0;d=d|0;return +(+If(a,b,c,d,1))}function If(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0.0,j=0,k=0,l=0,m=0,n=0.0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+208|0;z=F+200|0;y=F+192|0;A=F+96|0;B=F;C=e+4|0;p=c[C>>2]|0;q=e+112|0;r=e+120|0;if((p|0)>0){u=c[e>>2]|0;v=(d|0)>0;w=(d|0)>0;x=0;do{if(!(c[u+(x*320|0)+4>>2]|0)){if(v){k=c[u+(x*320|0)>>2]|0;l=0;j=-1;do{if((c[b+(l<<8)+8>>2]|0)==(k|0)?(n=+h[b+(l<<8)+40>>3],!(n<+h[q>>3])):0)if(!((j|0)!=-1?!(+h[b+(j<<8)+40>>3]<n):0))j=l;l=l+1|0}while((l|0)<(d|0))}else j=-1;c[u+(x*320|0)+304>>2]=j;if((j|0)>-1)c[b+(j<<8)+16>>2]=c[b+(j<<8)+20>>2]}else{l=u+(x*320|0)+312|0;m=u+(x*320|0)|0;if(w){o=0;j=-1;do{k=c[b+(o<<8)+12>>2]|0;if((k|0)==0?(t=b+(o<<8)+248|0,s=c[t>>2]|0,t=c[t+4>>2]|0,!((s|0)==0&(t|0)==0)):0){k=l;if((s|0)==(c[k>>2]|0)?(t|0)==(c[k+4>>2]|0):0)E=20}else if((k|0)==(c[m>>2]|0))E=20;if((E|0)==20){E=0;g=+h[b+(o<<8)+48>>3];if(!(g<+h[r>>3]))if(!((j|0)!=-1?!(+h[b+(j<<8)+48>>3]<g):0))j=o}o=o+1|0}while((o|0)<(d|0))}else j=-1;c[u+(x*320|0)+304>>2]=j;if((j|0)>-1)c[b+(j<<8)+16>>2]=c[b+(j<<8)+24>>2]}x=x+1|0}while((x|0)<(p|0))}if((p|0)>0){q=0;j=0;p=0;k=0;while(1){l=c[e>>2]|0;m=c[l+(q*320|0)+304>>2]|0;do if((m|0)<0)l=p;else{o=b+(m<<8)|0;if(+ke(a,o,+h[l+(q*320|0)+8>>3],B)>4.0){c[(c[e>>2]|0)+(q*320|0)+304>>2]=-1;l=b+(m<<8)+236|0;if(c[l>>2]|0){l=p;break}c[l>>2]=7;l=p;break}l=c[o>>2]|0;if((k|0)==0|(p|0)<(l|0)){j=0;do{h[A+(j<<5)>>3]=+h[B+(j<<5)>>3];h[A+(j<<5)+8>>3]=+h[B+(j<<5)+8>>3];h[A+(j<<5)+16>>3]=+h[B+(j<<5)+16>>3];h[A+(j<<5)+24>>3]=+h[B+(j<<5)+24>>3];j=j+1|0}while((j|0)!=3);j=q}else l=p;k=k+1|0}while(0);q=q+1|0;if((q|0)>=(c[C>>2]|0))break;else p=l}}else{j=0;k=0}do if((k|0)!=0?(k|0)>=(c[e+128>>2]|0):0){Ne(A,(c[e>>2]|0)+(j*320|0)+112|0,B)|0;p=k<<2;r=Uj(k<<6)|0;if(!r){Me(3,5472,y);rb(1)}q=Uj(k*96|0)|0;if(!q){Me(3,5472,z);rb(1)}l=c[C>>2]|0;if((l|0)>0){m=c[e>>2]|0;o=0;j=0;do{k=c[m+(o*320|0)+304>>2]|0;if((k|0)>=0){y=c[b+(k<<8)+16>>2]|0;d=(4-y|0)%4|0;z=j<<3;h[r+(z<<3)>>3]=+h[b+(k<<8)+168+(d<<4)>>3];h[r+((z|1)<<3)>>3]=+h[b+(k<<8)+168+(d<<4)+8>>3];d=(5-y|0)%4|0;h[r+((z|2)<<3)>>3]=+h[b+(k<<8)+168+(d<<4)>>3];h[r+((z|3)<<3)>>3]=+h[b+(k<<8)+168+(d<<4)+8>>3];d=(6-y|0)%4|0;h[r+((z|4)<<3)>>3]=+h[b+(k<<8)+168+(d<<4)>>3];h[r+((z|5)<<3)>>3]=+h[b+(k<<8)+168+(d<<4)+8>>3];y=(7-y|0)%4|0;h[r+((z|6)<<3)>>3]=+h[b+(k<<8)+168+(y<<4)>>3];h[r+((z|7)<<3)>>3]=+h[b+(k<<8)+168+(y<<4)+8>>3];z=j*12|0;h[q+(z<<3)>>3]=+h[m+(o*320|0)+208>>3];h[q+((z|1)<<3)>>3]=+h[m+(o*320|0)+216>>3];h[q+((z|2)<<3)>>3]=+h[m+(o*320|0)+224>>3];h[q+((z|3)<<3)>>3]=+h[m+(o*320|0)+232>>3];h[q+(z+4<<3)>>3]=+h[m+(o*320|0)+240>>3];h[q+(z+5<<3)>>3]=+h[m+(o*320|0)+248>>3];h[q+(z+6<<3)>>3]=+h[m+(o*320|0)+256>>3];h[q+(z+7<<3)>>3]=+h[m+(o*320|0)+264>>3];h[q+(z+8<<3)>>3]=+h[m+(o*320|0)+272>>3];h[q+(z+9<<3)>>3]=+h[m+(o*320|0)+280>>3];y=c[e>>2]|0;h[q+(z+10<<3)>>3]=+h[y+(o*320|0)+288>>3];h[q+(z+11<<3)>>3]=+h[y+(o*320|0)+296>>3];j=j+1|0}o=o+1|0}while((o|0)<(l|0))}m=e+104|0;k=(f|0)!=0;if(!(c[m>>2]|0)){j=e+8|0;g=+me(a,B,r,q,p,j);if(k&g>=20.0){yf(c[a>>2]|0,.8)|0;g=+ne(a,B,r,q,p,j);if(g>=20.0){yf(c[a>>2]|0,.6)|0;g=+ne(a,B,r,q,p,j);if(g>=20.0){yf(c[a>>2]|0,.4)|0;g=+ne(a,B,r,q,p,j);if(g>=20.0){yf(c[a>>2]|0,0.0)|0;g=+ne(a,B,r,q,p,j)}}}}Vj(q);Vj(r)}else{g=+me(a,B,r,q,p,A);l=e+8|0;n=+me(a,l,r,q,p,l);j=g<n;do if(k){if(j){j=0;do{h[e+8+(j<<5)>>3]=+h[A+(j<<5)>>3];h[e+8+(j<<5)+8>>3]=+h[A+(j<<5)+8>>3];h[e+8+(j<<5)+16>>3]=+h[A+(j<<5)+16>>3];h[e+8+(j<<5)+24>>3]=+h[A+(j<<5)+24>>3];j=j+1|0}while((j|0)!=3)}else g=n;if(g>=20.0){yf(c[a>>2]|0,.8)|0;g=+ne(a,B,r,q,p,A);n=+ne(a,l,r,q,p,l);if(g<n){j=0;do{h[e+8+(j<<5)>>3]=+h[A+(j<<5)>>3];h[e+8+(j<<5)+8>>3]=+h[A+(j<<5)+8>>3];h[e+8+(j<<5)+16>>3]=+h[A+(j<<5)+16>>3];h[e+8+(j<<5)+24>>3]=+h[A+(j<<5)+24>>3];j=j+1|0}while((j|0)!=3)}else g=n;if(g>=20.0){yf(c[a>>2]|0,.6)|0;g=+ne(a,B,r,q,p,A);n=+ne(a,l,r,q,p,l);if(g<n){j=0;do{h[e+8+(j<<5)>>3]=+h[A+(j<<5)>>3];h[e+8+(j<<5)+8>>3]=+h[A+(j<<5)+8>>3];h[e+8+(j<<5)+16>>3]=+h[A+(j<<5)+16>>3];h[e+8+(j<<5)+24>>3]=+h[A+(j<<5)+24>>3];j=j+1|0}while((j|0)!=3)}else g=n;if(g>=20.0){yf(c[a>>2]|0,.4)|0;g=+ne(a,B,r,q,p,A);n=+ne(a,l,r,q,p,l);if(g<n){j=0;do{h[e+8+(j<<5)>>3]=+h[A+(j<<5)>>3];h[e+8+(j<<5)+8>>3]=+h[A+(j<<5)+8>>3];h[e+8+(j<<5)+16>>3]=+h[A+(j<<5)+16>>3];h[e+8+(j<<5)+24>>3]=+h[A+(j<<5)+24>>3];j=j+1|0}while((j|0)!=3)}else g=n;if(g>=20.0){yf(c[a>>2]|0,0.0)|0;g=+ne(a,B,r,q,p,A);n=+ne(a,l,r,q,p,l);if(g<n)j=0;else{g=n;break}do{h[e+8+(j<<5)>>3]=+h[A+(j<<5)>>3];h[e+8+(j<<5)+8>>3]=+h[A+(j<<5)+8>>3];h[e+8+(j<<5)+16>>3]=+h[A+(j<<5)+16>>3];h[e+8+(j<<5)+24>>3]=+h[A+(j<<5)+24>>3];j=j+1|0}while((j|0)!=3)}}}}}else if(j){j=0;do{h[e+8+(j<<5)>>3]=+h[A+(j<<5)>>3];h[e+8+(j<<5)+8>>3]=+h[A+(j<<5)+8>>3];h[e+8+(j<<5)+16>>3]=+h[A+(j<<5)+16>>3];h[e+8+(j<<5)+24>>3]=+h[A+(j<<5)+24>>3];j=j+1|0}while((j|0)!=3)}else g=n;while(0);Vj(q);Vj(r)}if(g<20.0){c[m>>2]=1;break}c[m>>2]=0;m=c[C>>2]|0;if((m|0)>0){j=c[e>>2]|0;l=0;do{k=c[j+(l*320|0)+304>>2]|0;if((k|0)>=0?(D=b+(k<<8)+236|0,(c[D>>2]|0)==0):0)c[D>>2]=8;l=l+1|0}while((l|0)<(m|0))}}else E=38;while(0);if((E|0)==38){c[e+104>>2]=0;g=-1.0}i=F;return +g}function Jf(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0,N=0,O=0,P=0,Q=0,R=0,S=0,T=0,U=0,V=0.0,W=0.0;U=i;i=i+2544|0;S=U+208|0;R=U+200|0;G=U+184|0;Q=U+176|0;F=U+168|0;E=U+152|0;P=U+144|0;D=U+136|0;M=U+128|0;L=U+120|0;K=U+112|0;C=U+104|0;j=U+96|0;g=U+88|0;f=U+80|0;e=U+72|0;d=U+64|0;H=U;I=U+2280|0;J=U+232|0;z=U+224|0;O=U+220|0;A=U+216|0;B=U+212|0;T=_i(a,5306)|0;a:do if(!T){c[d>>2]=a;Me(3,5308,d);d=ri(c[(qi()|0)>>2]|0)|0;c[e>>2]=5367;c[e+4>>2]=d;Me(3,5361,e);d=0}else{Kf(I,T);c[f>>2]=O;if((kj(I,5368,f)|0)!=1){c[g>>2]=a;Me(3,5371,g);Wi(T)|0;d=0;break}d=c[O>>2]|0;N=Uj(d*320|0)|0;if(!N){Me(3,5472,j);rb(1)}r=H+8|0;s=H+16|0;t=H+24|0;u=H+32|0;v=H+40|0;w=H+48|0;x=H+56|0;y=(b|0)==0;b:do if((d|0)>0){d=0;f=0;c:while(1){Kf(I,T);e=N+(d*320|0)|0;g=N+(d*320|0)+312|0;c[C>>2]=g;c[C+4>>2]=z;if((kj(I,5489,C)|0)==1){q=c[g>>2]|0;c[e>>2]=(q&-32768|0)==0&0==0?q&32767:0;c[N+(d*320|0)+4>>2]=1;f=f|2}else{if(y){e=10;break}if(!(Qe(J,a,2048,1)|0)){e=12;break}Cj(J,I,2047-(Bj(J)|0)|0)|0;q=Ke(b,J)|0;c[e>>2]=q;if((q|0)<0){e=14;break}c[N+(d*320|0)+4>>2]=0;f=f|1}Kf(I,T);e=N+(d*320|0)+8|0;c[D>>2]=e;if((kj(I,5785,D)|0)!=1){e=18;break}Kf(I,T);o=N+(d*320|0)+16|0;p=N+(d*320|0)+24|0;q=N+(d*320|0)+40|0;c[E>>2]=o;c[E+4>>2]=p;c[E+8>>2]=N+(d*320|0)+32;c[E+12>>2]=q;if((kj(I,5894,E)|0)!=4){c[F>>2]=A;c[F+4>>2]=B;if((kj(I,5910,F)|0)==2)g=0;else{e=21;break}}else g=1;do{Kf(I,T);c[G>>2]=N+(d*320|0)+16+(g<<5);c[G+4>>2]=N+(d*320|0)+16+(g<<5)+8;c[G+8>>2]=N+(d*320|0)+16+(g<<5)+16;c[G+12>>2]=N+(d*320|0)+16+(g<<5)+24;if((kj(I,5894,G)|0)!=4){e=23;break c}g=g+1|0}while((g|0)<3);Oe(o,N+(d*320|0)+112|0)|0;W=+h[e>>3];V=W*-.5;h[H>>3]=V;W=W*.5;h[r>>3]=W;h[s>>3]=W;h[t>>3]=W;h[u>>3]=W;h[v>>3]=V;h[w>>3]=V;h[x>>3]=V;e=N+(d*320|0)+48|0;g=N+(d*320|0)+56|0;j=N+(d*320|0)+72|0;k=N+(d*320|0)+80|0;l=N+(d*320|0)+88|0;m=N+(d*320|0)+104|0;n=0;do{V=+h[H+(n<<4)>>3];W=+h[H+(n<<4)+8>>3];h[N+(d*320|0)+208+(n*24|0)>>3]=+h[q>>3]+(+h[o>>3]*V+ +h[p>>3]*W);h[N+(d*320|0)+208+(n*24|0)+8>>3]=+h[j>>3]+(+h[e>>3]*V+ +h[g>>3]*W);h[N+(d*320|0)+208+(n*24|0)+16>>3]=+h[m>>3]+(+h[k>>3]*V+ +h[l>>3]*W);n=n+1|0}while((n|0)!=4);d=d+1|0;if((d|0)>=(c[O>>2]|0))break b}if((e|0)==10){c[K>>2]=a;c[K+4>>2]=I;Me(3,5496,K)}else if((e|0)==12){c[L>>2]=a;Me(3,5624,L)}else if((e|0)==14){c[M>>2]=a;c[M+4>>2]=J;Me(3,5708,M)}else if((e|0)==18){c[P>>2]=a;c[P+4>>2]=d+1;Me(3,5789,P)}else if((e|0)==21){c[Q>>2]=a;c[Q+4>>2]=d+1;Me(3,5916,Q)}else if((e|0)==23){c[R>>2]=a;c[R+4>>2]=d+1;Me(3,5916,R)}Wi(T)|0;Vj(N);d=0;break a}else f=0;while(0);Wi(T)|0;d=Uj(136)|0;if(!d){Me(3,5472,S);rb(1)}c[d>>2]=N;c[d+4>>2]=c[O>>2];c[d+104>>2]=0;do if((f&3|0)!=3){e=d+108|0;if(!(f&1)){c[e>>2]=1;break}else{c[e>>2]=0;break}}else c[d+108>>2]=2;while(0);h[d+112>>3]=.5;h[d+120>>3]=.5}while(0);i=U;return d|0}function Kf(b,c){b=b|0;c=c|0;var d=0,e=0;a:do if(Zi(b,256,c)|0)while(1){d=Bj(b)|0;b:do if(d)while(1){d=d+-1|0;e=b+d|0;switch(a[e>>0]|0){case 13:case 10:break;default:break b}a[e>>0]=0;if(!d)break b}while(0);switch(a[b>>0]|0){case 0:case 35:break;default:break a}if(!(Zi(b,256,c)|0))break a}while(0);return}function Lf(a,b,d,e){a=a|0;b=+b;d=+d;e=e|0;var f=0,g=0.0,j=0.0,k=0,l=0.0,m=0.0,n=0,o=0,p=0,q=0,r=0;r=i;i=i+400|0;n=r+296|0;q=r+200|0;o=r+128|0;p=r;k=c[a>>2]|0;f=c[a+4>>2]|0;if((bf(a+8|0,n,q)|0)<0)Me(3,6025,r+392|0);else{j=+(f+-1|0);f=n+32|0;h[f>>3]=j*+h[n+64>>3]-+h[f>>3];f=n+40|0;h[f>>3]=j*+h[n+72>>3]-+h[f>>3];f=n+48|0;h[f>>3]=j*+h[n+80>>3]-+h[f>>3];f=n+56|0;h[f>>3]=j*+h[n+88>>3]-+h[f>>3];g=+h[n+80>>3];f=0;do{h[o+(f*24|0)>>3]=+h[n+(f<<5)>>3]/g;h[o+(f*24|0)+8>>3]=+h[n+(f<<5)+8>>3]/g;h[o+(f*24|0)+16>>3]=+h[n+(f<<5)+16>>3]/g;f=f+1|0}while((f|0)!=3);g=+(k+-1|0);h[p>>3]=+h[o>>3]*2.0/g;h[p+8>>3]=+h[o+8>>3]*2.0/g;h[p+16>>3]=+h[o+16>>3]*2.0/g+-1.0;k=p+24|0;c[k>>2]=0;c[k+4>>2]=0;c[k+8>>2]=0;c[k+12>>2]=0;h[p+40>>3]=+h[o+32>>3]*2.0/j;h[p+48>>3]=+h[o+40>>3]*2.0/j+-1.0;k=p+56|0;g=d-b;c[k>>2]=0;c[k+4>>2]=0;c[k+8>>2]=0;c[k+12>>2]=0;c[k+16>>2]=0;c[k+20>>2]=0;h[p+80>>3]=(b+d)/g;h[p+88>>3]=d*-2.0*b/g;k=p+96|0;c[k>>2]=0;c[k+4>>2]=0;c[k+8>>2]=0;c[k+12>>2]=0;h[p+112>>3]=1.0;h[p+120>>3]=0.0;g=+h[q+24>>3];j=+h[q+56>>3];d=+h[q+88>>3];k=0;do{b=+h[p+(k<<5)>>3];f=p+(k<<5)+8|0;a=p+(k<<5)+16|0;l=+h[f>>3];m=+h[a>>3];n=0;do{h[e+((n<<2)+k<<3)>>3]=b*+h[q+(n<<3)>>3]+l*+h[q+32+(n<<3)>>3]+m*+h[q+64+(n<<3)>>3];n=n+1|0}while((n|0)!=3);h[e+(k+12<<3)>>3]=+h[p+(k<<5)+24>>3]+(b*g+ +h[f>>3]*j+ +h[a>>3]*d);k=k+1|0}while((k|0)!=4)}i=r;return}function Mf(a){a=a|0;c[496]=a;return}function Nf(){return c[496]|0}function Of(a){a=a|0;var b=0,d=0;b=a+212|0;d=c[b>>2]|0;if(d){ze(d)|0;Qd(c[b>>2]|0)|0;c[b>>2]=0}b=a+224|0;if(c[b>>2]|0){Ld(b)|0;c[b>>2]=0}b=a+192|0;if(c[b>>2]|0){kf(b)|0;c[b>>2]=0}return}function Pf(a){a=a|0;var b=0,d=0,e=0,f=0,g=0;g=i;i=i+16|0;d=g;c[d>>2]=a;if(!(Cg(2044,d)|0))a=-1;else{f=Dg(2044,d)|0;a=f+196|0;b=c[a>>2]|0;if(b){Vj(b);c[a>>2]=0;c[f+200>>2]=0}Of(f);Ce(c[f+216>>2]|0)|0;Eg(2044,d)|0;d=f+248|0;e=f+252|0;a=c[d>>2]|0;if((c[e>>2]|0)!=(a|0)){b=0;do{Ff(c[a+(b<<3)+4>>2]|0)|0;b=b+1|0;a=c[d>>2]|0}while(b>>>0<(c[e>>2]|0)-a>>3>>>0)}Fg(d);Lh(d);Fg(f+248|0);Lh(f);a=0}i=g;return a|0}function Qf(b){b=b|0;var d=0,e=0,f=0,g=0,h=0;h=i;i=i+208|0;g=h+192|0;f=h;e=h+196|0;if(!(a[b>>0]&1))d=b+1|0;else d=c[b+8>>2]|0;if((ef(d,1,f,h+184|0)|0)<0){if(!(a[b>>0]&1))d=b+1|0;else d=c[b+8>>2]|0;c[g>>2]=d;Me(3,6093,g);d=-1}else{d=c[521]|0;c[521]=d+1;c[e>>2]=d;ik(Gg(2064,e)|0,f|0,184)|0}i=h;return d|0}function Rf(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,j=0,k=0,l=0,m=0,n=0;n=i;i=i+48|0;m=n+24|0;l=n+16|0;j=n+8|0;f=n;d=n+32|0;e=n+28|0;c[d>>2]=a;c[e>>2]=b;do if((Cg(2044,d)|0)!=0?(k=Dg(2044,d)|0,(Hg(2064,e)|0)!=0):0){g=k+8|0;ik(g|0,Gg(2064,e)|0,184)|0;e=c[g>>2]|0;d=k+204|0;b=c[k+12>>2]|0;a=k+208|0;if(!((e|0)==(c[d>>2]|0)?(b|0)==(c[a>>2]|0):0)){c[f>>2]=e;c[f+4>>2]=b;Me(2,6152,f);af(g,c[d>>2]|0,c[a>>2]|0,g)|0}Of(k);d=jf(g,15)|0;a=k+192|0;c[a>>2]=d;if(!d){Me(3,6199,j);d=-1;break}d=Md(d)|0;b=k+212|0;c[b>>2]=d;if(!d){Me(3,6237,l);d=-1;break}Nd(d,2)|0;l=Jd(g)|0;c[k+224>>2]=l;if(!l){Me(3,6274,m);d=-1;break}else{ye(c[b>>2]|0,c[k+216>>2]|0)|0;Lf(c[a>>2]|0,+h[k+232>>3],+h[k+240>>3],k+264|0);d=0;break}}else d=-1;while(0);i=n;return d|0}function Sf(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0,j=0;j=i;i=i+16|0;h=j+8|0;g=j;e=j+12|0;c[e>>2]=b;if(Cg(2044,e)|0){f=Dg(2044,e)|0;if(!(a[d>>0]&1))d=d+1|0;else d=c[d+8>>2]|0;b=f+216|0;e=Ke(c[b>>2]|0,d)|0;c[f+260>>2]=e;if((e|0)<0){c[g>>2]=d;Me(3,6312,g);Ce(c[b>>2]|0)|0;Me(3,6358,h);e=-1}}else e=-1;i=j;return e|0}function Tf(b,d){b=b|0;d=d|0;var e=0,f=0,g=0,h=0,j=0,k=0,l=0;l=i;i=i+32|0;g=l+16|0;f=l+8|0;e=l+20|0;k=l;c[e>>2]=b;do if(Cg(2044,e)|0){j=Dg(2044,e)|0;if(!(a[d>>0]&1))e=d+1|0;else e=c[d+8>>2]|0;b=c[j+212>>2]|0;d=j+216|0;h=j+220|0;e=Jf(e,c[d>>2]|0)|0;c[h>>2]=e;if(!e){Me(3,6402,f);Ce(c[d>>2]|0)|0;Me(3,6429,g);e=-1;break}switch(c[e+108>>2]|0){case 0:{Zd(b,0)|0;break}case 1:{Zd(b,2)|0;break}default:Zd(b,3)|0}b=j+248|0;d=j+252|0;f=c[d>>2]|0;e=f-(c[b>>2]|0)>>3;g=k;c[g>>2]=0;c[g+4>>2]=0;c[k>>2]=e;c[k+4>>2]=c[h>>2];if((f|0)==(c[j+256>>2]|0)){Ig(b,k);break}else{j=k;e=c[j>>2]|0;j=c[j+4>>2]|0;k=f;c[k>>2]=e;c[k+4>>2]=j;c[d>>2]=(c[d>>2]|0)+8;break}}else e=-1;while(0);i=l;return e|0}function Uf(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;g=i;i=i+16|0;d=g;c[d>>2]=a;if(((Cg(2044,d)|0)!=0?(e=Dg(2044,d)|0,(b|0)>=0):0)?(f=c[e+248>>2]|0,(c[e+252>>2]|0)-f>>3>>>0>b>>>0):0)d=c[(c[f+(b<<3)+4>>2]|0)+4>>2]|0;else d=-1;i=g;return d|0}function Vf(a){a=a|0;var b=0,d=0;d=i;i=i+16|0;b=d;c[b>>2]=a;if(!(Cg(2044,b)|0))b=-1;else{b=Dg(2044,b)|0;b=(c[b+252>>2]|0)-(c[b+248>>2]|0)>>3}i=d;return b|0}function Wf(a,b){a=a|0;b=+b;var d=0,e=0;e=i;i=i+16|0;d=e;c[d>>2]=a;if(Cg(2044,d)|0)h[(Dg(2044,d)|0)+232>>3]=b;i=e;return}function Xf(a){a=a|0;var b=0.0,d=0,e=0;e=i;i=i+16|0;d=e;c[d>>2]=a;if(!(Cg(2044,d)|0))b=-1.0;else b=+h[(Dg(2044,d)|0)+232>>3];i=e;return +b}function Yf(a,b){a=a|0;b=+b;var d=0,e=0;e=i;i=i+16|0;d=e;c[d>>2]=a;if(Cg(2044,d)|0)h[(Dg(2044,d)|0)+240>>3]=b;i=e;return}function Zf(a){a=a|0;var b=0.0,d=0,e=0;e=i;i=i+16|0;d=e;c[d>>2]=a;if(!(Cg(2044,d)|0))b=-1.0;else b=+h[(Dg(2044,d)|0)+240>>3];i=e;return +b}function _f(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;f=i;i=i+16|0;e=f;d=f+4|0;c[d>>2]=a;if((Cg(2044,d)|0)!=0?(Zd(c[(Dg(2044,d)|0)+212>>2]|0,b)|0)==0:0){c[e>>2]=b;Me(1,6478,e)}i=f;return}function $f(a){a=a|0;var b=0,d=0,e=0;e=i;i=i+16|0;b=e+4|0;d=e;c[b>>2]=a;if(!(Cg(2044,b)|0)){i=e;return -1}else{a=(ae(c[(Dg(2044,b)|0)+212>>2]|0,d)|0)==0;i=e;return (a?c[d>>2]|0:-1)|0}return 0}function ag(a,b){a=a|0;b=+b;var d=0,e=0,f=0.0,g=0,j=0,k=0;k=i;i=i+16|0;j=k;d=k+8|0;c[d>>2]=a;if((((Cg(2044,d)|0)!=0?(e=Dg(2044,d)|0,!(b<=0.0|b>=1.0)):0)?(f=b,g=c[e+212>>2]|0,(g|0)!=0):0)?(be(g,f)|0)==0:0){h[j>>3]=f;Me(1,6513,j)}i=k;return}function bg(a){a=a|0;var b=0,d=0,e=0,f=0;f=i;i=i+16|0;b=f+8|0;e=f;c[b>>2]=a;if((Cg(2044,b)|0)!=0?(d=c[(Dg(2044,b)|0)+212>>2]|0,(d|0)!=0):0){a=(ce(d,e)|0)==0;i=f;return +(a?+h[e>>3]:-1.0)}i=f;return -1.0}function cg(a,b){a=a|0;b=b|0;var d=0,e=0;e=i;i=i+16|0;d=e;c[d>>2]=a;if(Cg(2044,d)|0)_d(c[(Dg(2044,d)|0)+212>>2]|0,b)|0;i=e;return}function dg(a){a=a|0;var b=0,d=0,e=0;e=i;i=i+16|0;b=e+4|0;d=e;c[b>>2]=a;if(!(Cg(2044,b)|0))b=-1;else{$d(c[(Dg(2044,b)|0)+212>>2]|0,d)|0;b=c[d>>2]|0}i=e;return b|0}function eg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;f=i;i=i+16|0;e=f;d=f+4|0;c[d>>2]=a;if((Cg(2044,d)|0)!=0?(Sd(c[(Dg(2044,d)|0)+212>>2]|0,b)|0)==0:0){c[e>>2]=b;Me(1,6544,e)}i=f;return}function fg(a){a=a|0;var b=0,d=0,e=0;e=i;i=i+16|0;b=e+4|0;d=e;c[b>>2]=a;if(!(Cg(2044,b)|0)){i=e;return -1}else{a=(Td(c[(Dg(2044,b)|0)+212>>2]|0,d)|0)==0;i=e;return (a?c[d>>2]|0:-1)|0}return 0}function gg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;g=i;i=i+16|0;f=g;d=g+4|0;c[d>>2]=a;if(((Cg(2044,d)|0)!=0?(e=Dg(2044,d)|0,b>>>0<=255):0)?(Ud(c[e+212>>2]|0,b)|0)==0:0){c[f>>2]=b;Me(1,6569,f)}i=g;return}function hg(a){a=a|0;var b=0,d=0,e=0;e=i;i=i+16|0;b=e+4|0;d=e;c[b>>2]=a;if(!(Cg(2044,b)|0)){i=e;return -1}else{a=(Vd(c[(Dg(2044,b)|0)+212>>2]|0,d)|0)==0;i=e;return (a?c[d>>2]|0:-1)|0}return 0}function ig(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;f=i;i=i+16|0;e=f;d=f+4|0;c[d>>2]=a;if((Cg(2044,d)|0)!=0?(Pd(c[(Dg(2044,d)|0)+212>>2]|0,b)|0)==0:0){c[e>>2]=b;Me(1,6590,e)}i=f;return}function jg(a){a=a|0;var b=0,d=0,e=0;e=i;i=i+16|0;b=e+4|0;d=e;c[b>>2]=a;if(!(Cg(2044,b)|0)){i=e;return -1}else{a=(Wd(c[(Dg(2044,b)|0)+212>>2]|0,d)|0)==0;i=e;return (a?c[d>>2]|0:-1)|0}return 0}function kg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;f=i;i=i+16|0;e=f;d=f+4|0;c[d>>2]=a;if(!(Cg(2044,d)|0))b=0;else{a=(b|0)!=0;Od(c[(Dg(2044,d)|0)+212>>2]|0,a&1)|0;c[e>>2]=a?6616:6620;Me(1,6625,e)}i=f;return b|0}function lg(a){a=a|0;var b=0,d=0;d=i;i=i+16|0;b=d;c[b>>2]=a;if(!(Cg(2044,b)|0))b=0;else b=c[(c[(Dg(2044,b)|0)+212>>2]|0)+4834148>>2]|0;i=d;return b|0}function mg(a){a=a|0;var b=0,d=0,e=0;e=i;i=i+16|0;b=e+4|0;d=e;c[b>>2]=a;if(!(Cg(2044,b)|0))b=0;else{Rd(c[(Dg(2044,b)|0)+212>>2]|0,d)|0;b=c[d>>2]|0}i=e;return b|0}function ng(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;f=i;i=i+16|0;e=f;d=f+4|0;c[d>>2]=a;if((Cg(2044,d)|0)!=0?(Xd(c[(Dg(2044,d)|0)+212>>2]|0,b)|0)==0:0){c[e>>2]=b;Me(1,6647,e)}i=f;return}function og(a){a=a|0;var b=0,d=0,e=0;e=i;i=i+16|0;b=e+4|0;d=e;c[b>>2]=a;if(!(Cg(2044,b)|0)){i=e;return -1}else{a=(Yd(c[(Dg(2044,b)|0)+212>>2]|0,d)|0)==0;i=e;return (a?c[d>>2]|0:-1)|0}return 0}function pg(a,b){a=a|0;b=b|0;var c=0;c=0;do{h[b+(c<<5)>>3]=+h[a+(c<<5)>>3];h[b+(c<<5)+8>>3]=+h[a+(c<<5)+8>>3];h[b+(c<<5)+16>>3]=+h[a+(c<<5)+16>>3];h[b+(c<<5)+24>>3]=+h[a+(c<<5)+24>>3];c=c+1|0}while((c|0)!=3);return}function qg(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;f=i;i=i+16|0;e=f;c[e>>2]=a;do if(Cg(2044,e)|0){e=Dg(2044,e)|0;a=c[e+212>>2]|0;if((c[a+44>>2]|0)>(b|0)){+ke(c[e+224>>2]|0,(b|0)<0?8:a+48+(b<<8)|0,+(d|0),264);e=0;break}else{e=c[523]|0;break}}else e=c[522]|0;while(0);i=f;return e|0}function rg(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;f=i;i=i+16|0;e=f;c[e>>2]=a;do if(Cg(2044,e)|0){e=Dg(2044,e)|0;a=c[e+212>>2]|0;if((c[a+44>>2]|0)>(b|0)){+le(c[e+224>>2]|0,(b|0)<0?8:a+48+(b<<8)|0,264,+(d|0),264);e=0;break}else{e=c[523]|0;break}}else e=c[522]|0;while(0);i=f;return e|0}function sg(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;f=i;i=i+16|0;e=f;c[e>>2]=a;do if(Cg(2044,e)|0){e=c[(Dg(2044,e)|0)+212>>2]|0;if((c[e+44>>2]|0)>(b|0)){c[((b|0)<0?8:e+48+(b<<8)|0)+16>>2]=d;e=0;break}else{e=c[523]|0;break}}else e=c[522]|0;while(0);i=f;return e|0}function tg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0.0,g=0.0,j=0.0,k=0.0,l=0.0,m=0.0,n=0.0,o=0.0;e=i;i=i+16|0;d=e;c[d>>2]=a;do if(Cg(2044,d)|0){d=c[(Dg(2044,d)|0)+212>>2]|0;if((c[d+44>>2]|0)>(b|0)){d=(b|0)<0?8:d+48+(b<<8)|0;o=+h[33];h[d+168>>3]=o;k=+h[34];h[d+176>>3]=k;n=+h[35];h[d+184>>3]=n;j=+h[36];h[d+192>>3]=j;m=+h[37];h[d+200>>3]=m;g=+h[38];h[d+208>>3]=g;l=+h[39];h[d+216>>3]=l;f=+h[40];h[d+224>>3]=f;h[d+56>>3]=(o+n+m+l)*.25;h[d+64>>3]=(k+j+g+f)*.25;d=0;break}else{d=c[523]|0;break}}else d=c[522]|0;while(0);i=e;return d|0}function ug(a,b){a=a|0;b=b|0;var d=0,e=0;e=i;i=i+16|0;d=e;c[d>>2]=a;do if(Cg(2044,d)|0){d=Dg(2044,d)|0;a=c[d+248>>2]|0;if((b|0)<0?1:(c[d+252>>2]|0)-a>>3>>>0<=b>>>0){d=c[524]|0;break}else{b=c[a+(b<<3)+4>>2]|0;a=c[d+212>>2]|0;+Hf(c[d+224>>2]|0,a+48|0,c[a+44>>2]|0,b);pg(b+8|0,264);d=0;break}}else d=c[522]|0;while(0);i=e;return d|0}function vg(a,b){a=a|0;b=b|0;var d=0,e=0;e=i;i=i+16|0;d=e;c[d>>2]=a;do if(Cg(2044,d)|0){d=Dg(2044,d)|0;a=c[d+248>>2]|0;if((b|0)<0?1:(c[d+252>>2]|0)-a>>3>>>0<=b>>>0){d=c[524]|0;break}else{b=c[a+(b<<3)+4>>2]|0;a=c[d+212>>2]|0;+Gf(c[d+224>>2]|0,a+48|0,c[a+44>>2]|0,b);pg(b+8|0,264);d=0;break}}else d=c[522]|0;while(0);i=e;return d|0}function wg(a){a=a|0;var b=0,d=0;d=i;i=i+16|0;b=d;c[b>>2]=a;if(!(Cg(2044,b)|0))b=c[522]|0;else{b=Dg(2044,b)|0;b=de(c[b+212>>2]|0,c[b+196>>2]|0)|0}i=d;return b|0}function xg(a){a=a|0;var b=0,d=0;d=i;i=i+16|0;b=d;c[b>>2]=a;if(!(Cg(2044,b)|0))b=2088;else b=(c[(Dg(2044,b)|0)+212>>2]|0)+44|0;i=d;return c[b>>2]|0}function yg(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0;f=i;i=i+16|0;e=f;c[e>>2]=a;do if(Cg(2044,e)|0){a=Dg(2044,e)|0;e=c[a+248>>2]|0;if((b|0)<0?1:(c[a+252>>2]|0)-e>>3>>>0<=b>>>0){e=c[524]|0;break}e=c[e+(b<<3)+4>>2]|0;if((d|0)<0?1:(c[e+4>>2]|0)<=(d|0)){e=c[523]|0;break}else{e=c[e>>2]|0;pg(e+(d*320|0)+16|0,264);Lb(0,c[e+(d*320|0)+304>>2]|0,c[e+(d*320|0)>>2]|0,c[e+(d*320|0)+4>>2]|0,+(+h[e+(d*320|0)+8>>3]))|0;e=0;break}}else e=c[522]|0;while(0);i=f;return e|0}function zg(a,b){a=a|0;b=b|0;var d=0,e=0;e=i;i=i+16|0;d=e;c[d>>2]=a;do if(Cg(2044,d)|0){d=c[(Dg(2044,d)|0)+212>>2]|0;if((c[d+44>>2]|0)>(b|0)){d=(b|0)<0?8:d+48+(b<<8)|0;Qa(1,c[d>>2]|0,c[d+4>>2]|0,c[d+8>>2]|0,c[d+12>>2]|0,c[d+16>>2]|0,c[d+20>>2]|0,c[d+24>>2]|0,+(+h[d+32>>3]),+(+h[d+40>>3]),+(+h[d+48>>3]),+(+h[d+56>>3]),+(+h[d+64>>3]),+(+h[d+72>>3]),+(+h[d+80>>3]),+(+h[d+88>>3]),+(+h[d+96>>3]),+(+h[d+104>>3]),+(+h[d+112>>3]),+(+h[d+120>>3]),+(+h[d+128>>3]),+(+h[d+136>>3]),+(+h[d+144>>3]),+(+h[d+152>>3]),+(+h[d+160>>3]),+(+h[d+168>>3]),+(+h[d+176>>3]),+(+h[d+184>>3]),+(+h[d+192>>3]),+(+h[d+200>>3]),+(+h[d+208>>3]),+(+h[d+216>>3]),+(+h[d+224>>3]),c[d+240>>2]|0)|0;d=0;break}else{d=c[523]|0;break}}else d=c[522]|0;while(0);i=e;return d|0}function Ag(a,b,d){a=a|0;b=b|0;d=d|0;var e=0,f=0,g=0,h=0,j=0;h=i;i=i+16|0;g=h+8|0;f=h+12|0;e=c[525]|0;c[525]=e+1;c[f>>2]=e;f=Dg(2044,f)|0;c[f>>2]=e;c[f+204>>2]=a;c[f+208>>2]=b;j=$(a<<2,b)|0;b=f+200|0;c[b>>2]=j;a=f+196|0;c[a>>2]=Uj(j)|0;j=Ae()|0;c[f+216>>2]=j;if(!j)Me(3,8285,h);Rf(e,d)|0;c[g>>2]=c[b>>2];Me(1,8322,g);Kb(2,c[f>>2]|0,c[a>>2]|0,c[b>>2]|0,f+264|0,264)|0;i=h;return c[f>>2]|0}function Bg(a){a=a|0;var b=0;a=i;i=i+16|0;b=a;Jg(8591,7);Kg(8597,3);Lg(8606,2);Lg(8617,3);Mg(8633,4);Kg(8651,4);Ng(8671,5);Jg(8683,8);Mg(8700,5);Jg(8720,9);Jg(8738,10);Mg(8760,6);Mg(8783,7);Kg(8812,6);Kg(8825,7);Jg(8838,11);Mg(8857,8);Mg(8867,9);Kg(8880,8);Kg(8893,9);Og(8912,10);Pg(8924,1);Qg(8936,1);Rg(8959,1);Qg(8982,2);Rg(9004,2);Sg(9026,1);Kg(9043,10);Sg(9060,2);Kg(9073,11);Sg(9086,3);Kg(9110,12);Tg(9134,3);Rg(9147,3);Sg(9160,4);Kg(9178,13);Sg(9196,5);Kg(9212,14);Sg(9228,6);Kg(9245,15);Ug(9262,2088);Ug(9291,2096);Ug(9319,2092);Cb(9352,680,0);Cb(9369,680,1);Cb(9385,680,0);Cb(9407,680,0);Cb(9432,680,1);Cb(9457,680,1);Cb(9482,680,100);Cb(9509,680,0);Cb(9535,680,1);Cb(9561,680,0);Cb(9588,680,0);Cb(9615,680,1);Cb(9641,680,2);Cb(9666,680,3);Cb(9704,680,4);Cb(9741,680,0);Cb(9775,680,0);Cb(9799,680,1);Cb(9825,680,2);Cb(9852,680,2);Cb(9886,680,5);h[b>>3]=.5;Vg(9904,b);Cb(9925,680,0);Cb(9944,680,1);Cb(9962,680,2);Cb(9980,680,3);Cb(9999,680,4);Cb(10021,680,3);Cb(10040,680,515);Cb(10069,680,259);Cb(10097,680,4);Cb(10116,680,772);Cb(10146,680,1028);Cb(10176,680,0);Cb(10207,680,1);Cb(10243,680,2);Cb(10277,680,3);Cb(10315,680,0);Cb(10348,680,1);Cb(10395,680,2);Cb(10437,680,3);Cb(10480,680,4);Cb(10532,680,5);Cb(10583,680,6);Cb(10628,680,7);Cb(10667,680,8);Cb(10712,680,9);i=a;return}function Cg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0;d=c[b>>2]|0;f=c[a+4>>2]|0;a:do if(f){g=f+-1|0;h=(g&f|0)==0;if(h)e=g&d;else e=(d>>>0)%(f>>>0)|0;b=c[(c[a>>2]|0)+(e<<2)>>2]|0;if(b)do{b=c[b>>2]|0;if(!b){b=0;break a}a=c[b+4>>2]|0;if(h)a=a&g;else a=(a>>>0)%(f>>>0)|0;if((a|0)!=(e|0)){b=0;break a}}while((c[b+8>>2]|0)!=(d|0));else b=0}else b=0;while(0);return b|0}function Dg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;g=i;i=i+32|0;f=g+8|0;e=g;d=Cg(a,b)|0;if(!d){wh(f,a,b);xh(e,a,c[f>>2]|0);d=c[e>>2]|0;c[f>>2]=0}i=g;return d+16|0}function Eg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;f=i;i=i+16|0;d=f+4|0;e=f;b=Cg(a,b)|0;if(!b)b=0;else{c[e>>2]=b;c[d>>2]=c[e>>2];uh(a,d)|0;b=1}i=f;return b|0}function Fg(a){a=a|0;var b=0,d=0;d=c[a>>2]|0;if(d){b=a+4|0;a=c[b>>2]|0;if((a|0)!=(d|0)){do a=a+-8|0;while((a|0)!=(d|0));c[b>>2]=a}Lh(d)}return}function Gg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;g=i;i=i+32|0;f=g+8|0;e=g;d=Hg(a,b)|0;if(!d){qh(f,a,b);rh(e,a,c[f>>2]|0);d=c[e>>2]|0;c[f>>2]=0}i=g;return d+16|0}function Hg(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0;d=c[b>>2]|0;f=c[a+4>>2]|0;a:do if(f){g=f+-1|0;h=(g&f|0)==0;if(h)e=g&d;else e=(d>>>0)%(f>>>0)|0;b=c[(c[a>>2]|0)+(e<<2)>>2]|0;if(b)do{b=c[b>>2]|0;if(!b){b=0;break a}a=c[b+4>>2]|0;if(h)a=a&g;else a=(a>>>0)%(f>>>0)|0;if((a|0)!=(e|0)){b=0;break a}}while((c[b+8>>2]|0)!=(d|0));else b=0}else b=0;while(0);return b|0}function Ig(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,j=0;j=i;i=i+32|0;h=j;g=a+4|0;d=c[a>>2]|0;f=((c[g>>2]|0)-d>>3)+1|0;if(f>>>0>536870911)Jh(a);e=d;d=(c[a+8>>2]|0)-e|0;if(d>>3>>>0<268435455){d=d>>2;d=d>>>0<f>>>0?f:d}else d=536870911;nh(h,d,(c[g>>2]|0)-e>>3,a+8|0);g=h+8|0;f=c[g>>2]|0;d=b;e=c[d+4>>2]|0;b=f;c[b>>2]=c[d>>2];c[b+4>>2]=e;c[g>>2]=f+8;oh(a,h);ph(h);i=j;return}function Jg(a,b){a=a|0;b=b|0;Oa(a|0,4,2200,10911,1,b|0);return}function Kg(a,b){a=a|0;b=b|0;Oa(a|0,2,2192,10801,10,b|0);return}function Lg(a,b){a=a|0;b=b|0;Oa(a|0,3,2180,10906,12,b|0);return}function Mg(a,b){a=a|0;b=b|0;Oa(a|0,3,2168,10906,13,b|0);return}function Ng(a,b){a=a|0;b=b|0;Oa(a|0,2,2160,10801,11,b|0);return}function Og(a,b){a=a|0;b=b|0;Oa(a|0,2,2152,10797,7,b|0);return}function Pg(a,b){a=a|0;b=b|0;Oa(a|0,1,2148,10794,16,b|0);return}function Qg(a,b){a=a|0;b=b|0;Oa(a|0,3,2136,10789,1,b|0);return}function Rg(a,b){a=a|0;b=b|0;Oa(a|0,2,2128,10785,1,b|0);return}function Sg(a,b){a=a|0;b=b|0;Oa(a|0,3,2116,10780,1,b|0);return}function Tg(a,b){a=a|0;b=b|0;Oa(a|0,3,2104,10775,2,b|0);return}function Ug(a,b){a=a|0;b=b|0;Cb(a|0,680,c[b>>2]|0);return}function Vg(a,b){a=a|0;b=b|0;Cb(a|0,720,~~+h[b>>3]>>>0|0);return}function Wg(){c[511]=0;c[512]=0;c[513]=0;c[514]=0;g[515]=1.0;ub(11,2044,n|0)|0;c[516]=0;c[517]=0;c[518]=0;c[519]=0;g[520]=1.0;ub(12,2064,n|0)|0;Bg(0);return}function Xg(a){a=a|0;$g(a);return}function Yg(a){a=a|0;Zg(a);return}function Zg(a){a=a|0;var b=0;_g(a,c[a+8>>2]|0);b=c[a>>2]|0;c[a>>2]=0;if(b)Lh(b);return}function _g(a,b){a=a|0;b=b|0;if(b)do{a=b;b=c[b>>2]|0;Lh(a)}while((b|0)!=0);return}function $g(a){a=a|0;var b=0;ah(a,c[a+8>>2]|0);b=c[a>>2]|0;c[a>>2]=0;if(b)Lh(b);return}function ah(a,b){a=a|0;b=b|0;if(b)do{a=b;b=c[b>>2]|0;Fg(a+264|0);Lh(a)}while((b|0)!=0);return}function bh(a,b,c){a=a|0;b=b|0;c=+c;Tb[a&3](b,c);return}function ch(a,b,c){a=a|0;b=b|0;c=c|0;Xb[a&7](b,c);return}function dh(a,b){a=a|0;b=b|0;return +(+Ub[a&3](b))}function eh(a,b,c){a=a|0;b=b|0;c=+c;Tb[a&3](b,c);return}function fh(a){a=a|0;return Vb[a&1]()|0}function gh(a,b){a=a|0;b=b|0;Wb[a&15](b);return}function hh(a,b){a=a|0;b=b|0;var c=0,d=0;c=i;i=i+16|0;d=c;ih(d,b);a=Yb[a&31](d)|0;bk(d);i=c;return a|0}function ih(a,b){a=a|0;b=b|0;ak(a,b+4|0,c[b>>2]|0);return}function jh(a,b,c){a=a|0;b=b|0;c=c|0;return cc[a&15](b,c)|0}function kh(a,b,c){a=a|0;b=b|0;c=c|0;var d=0,e=0;d=i;i=i+16|0;e=d;ih(e,c);a=cc[a&15](b,e)|0;bk(e);i=d;return a|0}function lh(a,b){a=a|0;b=b|0;return Yb[a&31](b)|0}function mh(a,b,c,d){a=a|0;b=b|0;c=c|0;d=d|0;return Qb[a&15](b,c,d)|0}function nh(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;c[a+12>>2]=0;c[a+16>>2]=e;if(!b)e=0;else e=Kh(b<<3)|0;c[a>>2]=e;d=e+(d<<3)|0;c[a+8>>2]=d;c[a+4>>2]=d;c[a+12>>2]=e+(b<<3);return}function oh(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0;e=c[a>>2]|0;g=a+4|0;d=b+4|0;f=(c[g>>2]|0)-e|0;h=(c[d>>2]|0)+(0-(f>>3)<<3)|0;c[d>>2]=h;ik(h|0,e|0,f|0)|0;f=c[a>>2]|0;c[a>>2]=c[d>>2];c[d>>2]=f;f=b+8|0;e=c[g>>2]|0;c[g>>2]=c[f>>2];c[f>>2]=e;f=a+8|0;a=b+12|0;e=c[f>>2]|0;c[f>>2]=c[a>>2];c[a>>2]=e;c[b>>2]=c[d>>2];return}function ph(a){a=a|0;var b=0,d=0,e=0;d=c[a+4>>2]|0;e=a+8|0;b=c[e>>2]|0;if((b|0)!=(d|0)){do b=b+-8|0;while((b|0)!=(d|0));c[e>>2]=b}b=c[a>>2]|0;if(b)Lh(b);return}function qh(a,b,d){a=a|0;b=b|0;d=d|0;var e=0;e=Kh(200)|0;c[e+8>>2]=c[d>>2];ek(e+16|0,0,184)|0;c[a>>2]=e;a=a+4|0;c[a>>2]=b+8;c[a+4>>2]=257;return}function rh(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,h=0,i=0,j=0.0,k=0.0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0;m=c[e+8>>2]|0;s=e+4|0;c[s>>2]=m;r=d+4|0;l=c[r>>2]|0;q=(l|0)==0;a:do if(!q){n=l+-1|0;o=(n&l|0)==0;if(o)h=n&m;else h=(m>>>0)%(l>>>0)|0;f=c[(c[d>>2]|0)+(h<<2)>>2]|0;if(!f)p=12;else while(1){i=c[f>>2]|0;if(!i){p=12;break a}f=c[i+4>>2]|0;if(o)f=f&n;else f=(f>>>0)%(l>>>0)|0;if((f|0)!=(h|0)){p=12;break a}if((c[i+8>>2]|0)==(m|0)){f=0;e=i;break}else f=i}}else{h=0;p=12}while(0);if((p|0)==12){m=d+12|0;j=+(((c[m>>2]|0)+1|0)>>>0);k=+g[d+16>>2];do if(q|j>+(l>>>0)*k){if(l>>>0>2)f=(l+-1&l|0)==0;else f=0;i=(f&1|l<<1)^1;f=~~+_(+(j/k))>>>0;sh(d,i>>>0<f>>>0?f:i);i=c[r>>2]|0;f=c[s>>2]|0;h=i+-1|0;if(!(h&i)){l=i;h=h&f;break}else{l=i;h=(f>>>0)%(i>>>0)|0;break}}while(0);f=c[(c[d>>2]|0)+(h<<2)>>2]|0;if(!f){f=d+8|0;c[e>>2]=c[f>>2];c[f>>2]=e;c[(c[d>>2]|0)+(h<<2)>>2]=f;f=c[e>>2]|0;if(f){f=c[f+4>>2]|0;h=l+-1|0;if(!(h&l))f=f&h;else f=(f>>>0)%(l>>>0)|0;c[(c[d>>2]|0)+(f<<2)>>2]=e}}else{c[e>>2]=c[f>>2];c[f>>2]=e}c[m>>2]=(c[m>>2]|0)+1;f=1}c[b>>2]=e;a[b+4>>0]=f;return}
function zd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l*3|0)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){do if(((d[s+1>>0]|0)+(d[s>>0]|0)+(d[s+2>>0]|0)|0)>(A|0)){a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}else{b[e>>1]=0;a[l>>0]=0;j=r}while(0);t=t+1|0;n=s+3|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+6|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Ad(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<1)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){p=d[s>>0]|0;q=d[s+1>>0]|0;do if(((p&248)+10+(p<<5&224)+(q>>>3&28)+(q<<3&248)|0)>(A|0)){a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}else{b[e>>1]=0;a[l>>0]=0;j=r}while(0);t=t+1|0;n=s+2|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+4|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Bd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<2)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){do if(((d[s+1>>0]|0)+(d[s>>0]|0)+(d[s+2>>0]|0)|0)>(A|0)){a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}else{b[e>>1]=0;a[l>>0]=0;j=r}while(0);t=t+1|0;n=s+4|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+8|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Cd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<1)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){q=d[s>>0]|0;do if(((q&240)+24+(q<<4&240)+((d[s+1>>0]|0)&240)|0)>(A|0)){a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}else{b[e>>1]=0;a[l>>0]=0;j=r}while(0);t=t+1|0;n=s+2|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+4|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Dd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<1)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){p=d[s>>0]|0;q=d[s+1>>0]|0;do if(((p&248)+12+(p<<5&224)+(q>>>3&24)+(q<<2&248)|0)>(A|0)){a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}else{b[e>>1]=0;a[l>>0]=0;j=r}while(0);t=t+1|0;n=s+2|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+4|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Ed(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;p=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=p;n=p+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=j*3|0;z=f+-1|0;if((g|0)>0){l=0;j=p;m=p+(z<<1)|0;while(1){b[m>>1]=0;b[j>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{j=j+(f<<1)|0;m=m+(f<<1)|0}}}m=k+1179664|0;l=f+1|0;w=0-f|0;u=1-f|0;v=~f;a:do if((B|0)>1){x=(z|0)>1;o=(c[k+4>>2]|0)+l|0;y=1;n=e+(l<<2)|0;e=p+(l<<1)|0;j=0;b:while(1){if(x){l=o;t=1;s=n;r=j;while(1){do if(((d[s+2>>0]|0)+(d[s+1>>0]|0)+(d[s+3>>0]|0)|0)>(A|0)){a[l>>0]=-1;j=b[e+(w<<1)>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}o=b[e+(u<<1)>>1]|0;p=o<<16>>16;j=b[e+(v<<1)>>1]|0;q=j<<16>>16;n=j<<16>>16>0;if(o<<16>>16<=0){if(n){b[e>>1]=j;j=q*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-3<<2)|0;if((c[n>>2]|0)<(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=b[e+-2>>1]|0;if(j<<16>>16>0){b[e>>1]=j;j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;j=k+1310736+(j+-3<<2)|0;if((c[j>>2]|0)>=(t|0)){j=r;break}c[j>>2]=t;j=r;break}else{j=r+1|0;if((r|0)>32767)break b;b[e>>1]=j;c[k+1179664+(r<<2)>>2]=j<<16>>16;r=r*7|0;c[k+1310736+(r<<2)>>2]=1;c[k+1310736+(r+1<<2)>>2]=t;c[k+1310736+(r+2<<2)>>2]=y;c[k+1310736+(r+3<<2)>>2]=t;c[k+1310736+(r+4<<2)>>2]=t;c[k+1310736+(r+5<<2)>>2]=y;c[k+1310736+(r+6<<2)>>2]=y;break}}if(n){j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+(q+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;q=k+1310736+(j+-5<<2)|0;c[q>>2]=(c[q>>2]|0)+y;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}n=b[e+-2>>1]|0;if(n<<16>>16<=0){b[e>>1]=o;j=p*7|0;n=k+1310736+(j+-7<<2)|0;c[n>>2]=(c[n>>2]|0)+1;n=k+1310736+(j+-6<<2)|0;c[n>>2]=(c[n>>2]|0)+t;n=k+1310736+(j+-5<<2)|0;c[n>>2]=(c[n>>2]|0)+y;n=k+1310736+(j+-4<<2)|0;if((c[n>>2]|0)>(t|0))c[n>>2]=t;c[k+1310736+(j+-1<<2)>>2]=y;j=r;break}j=c[k+1179664+(p+-1<<2)>>2]|0;p=c[k+1179664+((n<<16>>16)+-1<<2)>>2]|0;if((j|0)>(p|0)){b[e>>1]=p;if((r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(j|0))c[o>>2]=p;n=n+1|0;if((n|0)>=(r|0)){j=p;break}else o=o+4|0}}else j=p}else{b[e>>1]=j;if((j|0)<(p|0)&(r|0)>0){n=0;o=m;while(1){if((c[o>>2]|0)==(p|0))c[o>>2]=j;n=n+1|0;if((n|0)>=(r|0))break;else o=o+4|0}}}j=(j<<16>>16)*7|0;q=k+1310736+(j+-7<<2)|0;c[q>>2]=(c[q>>2]|0)+1;q=k+1310736+(j+-6<<2)|0;c[q>>2]=(c[q>>2]|0)+t;j=k+1310736+(j+-5<<2)|0;c[j>>2]=(c[j>>2]|0)+y;j=r}else{b[e>>1]=0;a[l>>0]=0;j=r}while(0);t=t+1|0;n=s+4|0;e=e+2|0;l=l+1|0;if((t|0)>=(z|0))break;else{s=n;r=j}}}else l=o;y=y+1|0;if((y|0)>=(B|0)){p=j;D=52;break a}else{o=l+2|0;n=n+8|0;e=e+4|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){e=k+12|0;if((p|0)<1)j=1;else{n=1;j=1;while(1){l=c[m>>2]|0;if((l|0)==(n|0)){l=j;j=j+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[m>>2]=l;if((n|0)<(p|0)){n=n+1|0;m=m+4|0}else break}}o=k+8|0;l=j+-1|0;c[o>>2]=l;if(l){ek(e|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((j|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[o>>2]|0))}if((p|0)>0){e=0;do{m=(c[k+1179664+(e<<2)>>2]|0)+-1|0;n=e*7|0;l=k+12+(m<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(n<<2)>>2]|0);l=m<<1;j=k+655376+(l<<3)|0;h[j>>3]=+h[j>>3]+ +(c[k+1310736+(n+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(n+2<<2)>>2]|0);m=m<<2;l=k+131084+(m<<2)|0;j=c[k+1310736+(n+3<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;l=k+131084+((m|1)<<2)|0;j=c[k+1310736+(n+4<<2)>>2]|0;if((c[l>>2]|0)<(j|0))c[l>>2]=j;l=k+131084+((m|2)<<2)|0;j=c[k+1310736+(n+5<<2)>>2]|0;if((c[l>>2]|0)>(j|0))c[l>>2]=j;j=k+131084+((m|3)<<2)|0;l=c[k+1310736+(n+6<<2)>>2]|0;if((c[j>>2]|0)<(l|0))c[j>>2]=l;e=e+1|0}while((e|0)<(p|0))}if((c[o>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[o>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Fd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;o=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=o;n=o+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=f+-1|0;if((g|0)>0){l=0;m=o;n=o+(A<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{m=m+(f<<1)|0;n=n+(f<<1)|0}}}n=k+1179664|0;l=f+1|0;x=0-f|0;v=1-f|0;w=~f;a:do if((B|0)>1){y=(A|0)>1;p=(c[k+4>>2]|0)+l|0;z=1;e=e+l|0;o=o+(l<<1)|0;m=0;b:while(1){if(y){l=p;u=1;t=e;s=m;while(1){do if((d[t>>0]|0|0)>(j|0)){a[l>>0]=-1;m=b[o+(x<<1)>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}p=b[o+(v<<1)>>1]|0;q=p<<16>>16;m=b[o+(w<<1)>>1]|0;r=m<<16>>16;e=m<<16>>16>0;if(p<<16>>16<=0){if(e){b[o>>1]=m;m=r*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-3<<2)|0;if((c[e>>2]|0)<(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=b[o+-2>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(u|0)){m=s;break}c[m>>2]=u;m=s;break}else{m=s+1|0;if((s|0)>32767)break b;b[o>>1]=m;c[k+1179664+(s<<2)>>2]=m<<16>>16;s=s*7|0;c[k+1310736+(s<<2)>>2]=1;c[k+1310736+(s+1<<2)>>2]=u;c[k+1310736+(s+2<<2)>>2]=z;c[k+1310736+(s+3<<2)>>2]=u;c[k+1310736+(s+4<<2)>>2]=u;c[k+1310736+(s+5<<2)>>2]=z;c[k+1310736+(s+6<<2)>>2]=z;break}}if(e){m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+(r+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}e=b[o+-2>>1]|0;if(e<<16>>16<=0){b[o>>1]=p;m=q*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-4<<2)|0;if((c[e>>2]|0)>(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+((e<<16>>16)+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+z;m=s}else{b[o>>1]=0;a[l>>0]=0;m=s}while(0);u=u+1|0;e=t+1|0;o=o+2|0;l=l+1|0;if((u|0)>=(A|0))break;else{t=e;s=m}}}else l=p;z=z+1|0;if((z|0)>=(B|0)){q=m;D=52;break a}else{p=l+2|0;e=e+2|0;o=o+4|0}}Me(3,3904,C);l=-1}else{q=0;D=52}while(0);if((D|0)==52){o=k+12|0;if((q|0)<1)m=1;else{e=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(e|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((e|0)<(q|0)){e=e+1|0;n=n+4|0}else break}}p=k+8|0;l=m+-1|0;c[p>>2]=l;if(l){ek(o|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[p>>2]|0))}if((q|0)>0){o=0;do{n=(c[k+1179664+(o<<2)>>2]|0)+-1|0;e=o*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(e<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(e+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(e+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(e+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(e+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(e+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(e+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;o=o+1|0}while((o|0)<(q|0))}if((c[p>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[p>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Gd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;o=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=o;n=o+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=f+-1|0;if((g|0)>0){l=0;m=o;n=o+(A<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{m=m+(f<<1)|0;n=n+(f<<1)|0}}}n=k+1179664|0;l=f+1|0;x=0-f|0;v=1-f|0;w=~f;a:do if((B|0)>1){y=(A|0)>1;p=(c[k+4>>2]|0)+l|0;z=1;e=e+(l<<1)|0;o=o+(l<<1)|0;m=0;b:while(1){if(y){l=p;u=1;t=e;s=m;while(1){do if((d[t+1>>0]|0|0)>(j|0)){a[l>>0]=-1;m=b[o+(x<<1)>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}p=b[o+(v<<1)>>1]|0;q=p<<16>>16;m=b[o+(w<<1)>>1]|0;r=m<<16>>16;e=m<<16>>16>0;if(p<<16>>16<=0){if(e){b[o>>1]=m;m=r*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-3<<2)|0;if((c[e>>2]|0)<(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=b[o+-2>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(u|0)){m=s;break}c[m>>2]=u;m=s;break}else{m=s+1|0;if((s|0)>32767)break b;b[o>>1]=m;c[k+1179664+(s<<2)>>2]=m<<16>>16;s=s*7|0;c[k+1310736+(s<<2)>>2]=1;c[k+1310736+(s+1<<2)>>2]=u;c[k+1310736+(s+2<<2)>>2]=z;c[k+1310736+(s+3<<2)>>2]=u;c[k+1310736+(s+4<<2)>>2]=u;c[k+1310736+(s+5<<2)>>2]=z;c[k+1310736+(s+6<<2)>>2]=z;break}}if(e){m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+(r+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}e=b[o+-2>>1]|0;if(e<<16>>16<=0){b[o>>1]=p;m=q*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-4<<2)|0;if((c[e>>2]|0)>(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+((e<<16>>16)+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+z;m=s}else{b[o>>1]=0;a[l>>0]=0;m=s}while(0);u=u+1|0;e=t+2|0;o=o+2|0;l=l+1|0;if((u|0)>=(A|0))break;else{t=e;s=m}}}else l=p;z=z+1|0;if((z|0)>=(B|0)){q=m;D=52;break a}else{p=l+2|0;e=e+4|0;o=o+4|0}}Me(3,3904,C);l=-1}else{q=0;D=52}while(0);if((D|0)==52){o=k+12|0;if((q|0)<1)m=1;else{e=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(e|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((e|0)<(q|0)){e=e+1|0;n=n+4|0}else break}}p=k+8|0;l=m+-1|0;c[p>>2]=l;if(l){ek(o|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[p>>2]|0))}if((q|0)>0){o=0;do{n=(c[k+1179664+(o<<2)>>2]|0)+-1|0;e=o*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(e<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(e+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(e+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(e+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(e+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(e+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(e+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;o=o+1|0}while((o|0)<(q|0))}if((c[p>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[p>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Hd(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;o=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=o;n=o+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=f+-1|0;if((g|0)>0){l=0;m=o;n=o+(A<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{m=m+(f<<1)|0;n=n+(f<<1)|0}}}n=k+1179664|0;l=f+1|0;x=0-f|0;v=1-f|0;w=~f;a:do if((B|0)>1){y=(A|0)>1;p=(c[k+4>>2]|0)+l|0;z=1;e=e+(l<<1)|0;o=o+(l<<1)|0;m=0;b:while(1){if(y){l=p;u=1;t=e;s=m;while(1){do if((d[t>>0]|0|0)>(j|0)){a[l>>0]=-1;m=b[o+(x<<1)>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}p=b[o+(v<<1)>>1]|0;q=p<<16>>16;m=b[o+(w<<1)>>1]|0;r=m<<16>>16;e=m<<16>>16>0;if(p<<16>>16<=0){if(e){b[o>>1]=m;m=r*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-3<<2)|0;if((c[e>>2]|0)<(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=b[o+-2>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(u|0)){m=s;break}c[m>>2]=u;m=s;break}else{m=s+1|0;if((s|0)>32767)break b;b[o>>1]=m;c[k+1179664+(s<<2)>>2]=m<<16>>16;s=s*7|0;c[k+1310736+(s<<2)>>2]=1;c[k+1310736+(s+1<<2)>>2]=u;c[k+1310736+(s+2<<2)>>2]=z;c[k+1310736+(s+3<<2)>>2]=u;c[k+1310736+(s+4<<2)>>2]=u;c[k+1310736+(s+5<<2)>>2]=z;c[k+1310736+(s+6<<2)>>2]=z;break}}if(e){m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+(r+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}e=b[o+-2>>1]|0;if(e<<16>>16<=0){b[o>>1]=p;m=q*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-4<<2)|0;if((c[e>>2]|0)>(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+((e<<16>>16)+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+z;m=s}else{b[o>>1]=0;a[l>>0]=0;m=s}while(0);u=u+1|0;e=t+2|0;o=o+2|0;l=l+1|0;if((u|0)>=(A|0))break;else{t=e;s=m}}}else l=p;z=z+1|0;if((z|0)>=(B|0)){q=m;D=52;break a}else{p=l+2|0;e=e+4|0;o=o+4|0}}Me(3,3904,C);l=-1}else{q=0;D=52}while(0);if((D|0)==52){o=k+12|0;if((q|0)<1)m=1;else{e=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(e|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((e|0)<(q|0)){e=e+1|0;n=n+4|0}else break}}p=k+8|0;l=m+-1|0;c[p>>2]=l;if(l){ek(o|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[p>>2]|0))}if((q|0)>0){o=0;do{n=(c[k+1179664+(o<<2)>>2]|0)+-1|0;e=o*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(e<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(e+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(e+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(e+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(e+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(e+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(e+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;o=o+1|0}while((o|0)<(q|0))}if((c[p>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[p>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Id(e,f,g,j,k){e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0;E=i;i=i+16|0;C=E;o=c[k>>2]|0;B=g+-1|0;if((f|0)>0){l=0;m=o;n=o+(($(B,f)|0)<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(f|0))break;else{m=m+2|0;n=n+2|0}}}A=f+-1|0;if((g|0)>0){l=0;m=o;n=o+(A<<1)|0;while(1){b[n>>1]=0;b[m>>1]=0;l=l+1|0;if((l|0)>=(g|0))break;else{m=m+(f<<1)|0;n=n+(f<<1)|0}}}n=k+1179664|0;m=f+1|0;x=0-f|0;v=1-f|0;w=~f;a:do if((B|0)>1){y=(A|0)>1;l=(c[k+4>>2]|0)+m|0;z=1;e=e+m|0;o=o+(m<<1)|0;j=j+m|0;m=0;b:while(1){if(y){u=1;t=e;s=m;while(1){do if((d[t>>0]|0)>(d[j>>0]|0)){a[l>>0]=-1;m=b[o+(x<<1)>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}p=b[o+(v<<1)>>1]|0;q=p<<16>>16;m=b[o+(w<<1)>>1]|0;r=m<<16>>16;e=m<<16>>16>0;if(p<<16>>16<=0){if(e){b[o>>1]=m;m=r*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-3<<2)|0;if((c[e>>2]|0)<(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=b[o+-2>>1]|0;if(m<<16>>16>0){b[o>>1]=m;m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;m=k+1310736+(m+-3<<2)|0;if((c[m>>2]|0)>=(u|0)){m=s;break}c[m>>2]=u;m=s;break}else{m=s+1|0;if((s|0)>32767)break b;b[o>>1]=m;c[k+1179664+(s<<2)>>2]=m<<16>>16;s=s*7|0;c[k+1310736+(s<<2)>>2]=1;c[k+1310736+(s+1<<2)>>2]=u;c[k+1310736+(s+2<<2)>>2]=z;c[k+1310736+(s+3<<2)>>2]=u;c[k+1310736+(s+4<<2)>>2]=u;c[k+1310736+(s+5<<2)>>2]=z;c[k+1310736+(s+6<<2)>>2]=z;break}}if(e){m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+(r+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;r=k+1310736+(m+-5<<2)|0;c[r>>2]=(c[r>>2]|0)+z;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}e=b[o+-2>>1]|0;if(e<<16>>16<=0){b[o>>1]=p;m=q*7|0;e=k+1310736+(m+-7<<2)|0;c[e>>2]=(c[e>>2]|0)+1;e=k+1310736+(m+-6<<2)|0;c[e>>2]=(c[e>>2]|0)+u;e=k+1310736+(m+-5<<2)|0;c[e>>2]=(c[e>>2]|0)+z;e=k+1310736+(m+-4<<2)|0;if((c[e>>2]|0)>(u|0))c[e>>2]=u;c[k+1310736+(m+-1<<2)>>2]=z;m=s;break}m=c[k+1179664+(q+-1<<2)>>2]|0;q=c[k+1179664+((e<<16>>16)+-1<<2)>>2]|0;if((m|0)>(q|0)){b[o>>1]=q;if((s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(m|0))c[p>>2]=q;e=e+1|0;if((e|0)>=(s|0)){m=q;break}else p=p+4|0}}else m=q}else{b[o>>1]=m;if((m|0)<(q|0)&(s|0)>0){e=0;p=n;while(1){if((c[p>>2]|0)==(q|0))c[p>>2]=m;e=e+1|0;if((e|0)>=(s|0))break;else p=p+4|0}}}m=(m<<16>>16)*7|0;r=k+1310736+(m+-7<<2)|0;c[r>>2]=(c[r>>2]|0)+1;r=k+1310736+(m+-6<<2)|0;c[r>>2]=(c[r>>2]|0)+u;m=k+1310736+(m+-5<<2)|0;c[m>>2]=(c[m>>2]|0)+z;m=s}else{b[o>>1]=0;a[l>>0]=0;m=s}while(0);u=u+1|0;e=t+1|0;j=j+1|0;o=o+2|0;l=l+1|0;if((u|0)>=(A|0))break;else{t=e;s=m}}}z=z+1|0;if((z|0)>=(B|0)){p=m;D=52;break a}else{l=l+2|0;e=e+2|0;o=o+4|0;j=j+2|0}}Me(3,3904,C);l=-1}else{p=0;D=52}while(0);if((D|0)==52){o=k+12|0;if((p|0)<1)m=1;else{e=1;m=1;while(1){l=c[n>>2]|0;if((l|0)==(e|0)){l=m;m=m+1|0}else l=c[k+1179664+(l+-1<<2)>>2]|0;c[n>>2]=l;if((e|0)<(p|0)){e=e+1|0;n=n+4|0}else break}}j=k+8|0;l=m+-1|0;c[j>>2]=l;if(l){ek(o|0,0,l<<2|0)|0;ek(k+655376|0,0,l<<4|0)|0;if((m|0)>1){l=0;do{D=l<<2;c[k+131084+(D<<2)>>2]=f;c[k+131084+((D|1)<<2)>>2]=0;c[k+131084+((D|2)<<2)>>2]=g;c[k+131084+((D|3)<<2)>>2]=0;l=l+1|0}while((l|0)<(c[j>>2]|0))}if((p|0)>0){o=0;do{n=(c[k+1179664+(o<<2)>>2]|0)+-1|0;e=o*7|0;l=k+12+(n<<2)|0;c[l>>2]=(c[l>>2]|0)+(c[k+1310736+(e<<2)>>2]|0);l=n<<1;m=k+655376+(l<<3)|0;h[m>>3]=+h[m>>3]+ +(c[k+1310736+(e+1<<2)>>2]|0);l=k+655376+((l|1)<<3)|0;h[l>>3]=+h[l>>3]+ +(c[k+1310736+(e+2<<2)>>2]|0);n=n<<2;l=k+131084+(n<<2)|0;m=c[k+1310736+(e+3<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;l=k+131084+((n|1)<<2)|0;m=c[k+1310736+(e+4<<2)>>2]|0;if((c[l>>2]|0)<(m|0))c[l>>2]=m;l=k+131084+((n|2)<<2)|0;m=c[k+1310736+(e+5<<2)>>2]|0;if((c[l>>2]|0)>(m|0))c[l>>2]=m;m=k+131084+((n|3)<<2)|0;l=c[k+1310736+(e+6<<2)>>2]|0;if((c[m>>2]|0)<(l|0))c[m>>2]=l;o=o+1|0}while((o|0)<(p|0))}if((c[j>>2]|0)>0){l=0;do{f=k+12+(l<<2)|0;g=l<<1;D=k+655376+(g<<3)|0;h[D>>3]=+h[D>>3]/+(c[f>>2]|0);g=k+655376+((g|1)<<3)|0;h[g>>3]=+h[g>>3]/+(c[f>>2]|0);l=l+1|0}while((l|0)<(c[j>>2]|0));l=0}else l=0}else l=0}i=E;return l|0}function Jd(a){a=a|0;return Kd(a+8|0)|0}function Kd(a){a=a|0;var b=0,d=0;d=i;i=i+16|0;b=Uj(4)|0;if(!b){Me(3,5472,d);rb(1)}a=wf(a)|0;c[b>>2]=a;if(!a){Vj(b);b=0}i=d;return b|0}function Ld(a){a=a|0;var b=0;b=c[a>>2]|0;if(!b)b=-1;else{xf(b)|0;Vj(c[a>>2]|0);c[a>>2]=0;b=0}return b|0}function Md(a){a=a|0;var b=0,d=0,e=0;d=i;i=i+16|0;b=Uj(7062432)|0;if(!b){Me(3,5472,d);rb(1)}c[b>>2]=0;c[b+4834148>>2]=0;c[b+7062408>>2]=0;c[b+4>>2]=-1;c[b+8>>2]=0;c[b+12>>2]=1;c[b+16>>2]=100;c[b+20>>2]=0;c[b+24>>2]=0;c[b+28>>2]=2;h[b+7062416>>3]=.5;c[b+7062424>>2]=3;c[b+32>>2]=a;e=c[a>>2]|0;c[b+36>>2]=e;a=c[a+4>>2]|0;c[b+40>>2]=a;c[b+44>>2]=0;c[b+15408>>2]=0;c[b+4834152>>2]=0;c[b+4818296>>2]=0;a=Uj($(e<<1,a)|0)|0;c[b+4834144>>2]=a;if(!a){Me(3,5472,d+8|0);rb(1)}else{c[b+7062384>>2]=0;Nd(b,2)|0;Od(b,0)|0;c[b+7062388>>2]=-1;Pd(b,0)|0;c[b+7062392>>2]=7;c[b+7062396>>2]=0;i=d;return b|0}return 0}function Nd(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0;g=i;i=i+16|0;d=g;a:do if(a){e=a+4|0;if((c[e>>2]|0)!=(b|0)){switch(b|0){case 11:case 10:case 9:case 8:case 7:case 6:case 4:case 3:case 2:case 1:case 0:{f=0;break}case 14:case 13:case 12:case 5:{f=1;break}default:{c[d>>2]=b;Me(3,3936,d);d=-1;break a}}c[e>>2]=b;c[a+8>>2]=Pe(b)|0;d=a+7062408|0;b=c[d>>2]|0;if(b){pe(b);c[d>>2]=oe(c[a+36>>2]|0,c[a+40>>2]|0,c[e>>2]|0,0)|0}d=a+24|0;b=c[d>>2]|0;if(!f)switch(b|0){case 1:{c[d>>2]=4;d=0;break a}case 4:{c[d>>2]=3;d=0;break a}default:{d=0;break a}}else switch(b|0){case 0:{c[d>>2]=1;d=0;break a}case 3:{c[d>>2]=4;d=0;break a}default:{d=0;break a}}}else d=0}else d=-1;while(0);i=g;return d|0}function Od(a,b){a=a|0;b=b|0;var d=0,e=0,f=0;f=i;i=i+16|0;e=f;do if(a)if((c[a>>2]|0)!=(b|0)){c[a>>2]=b;if(!b){d=a+4834148|0;Vj(c[d>>2]|0);c[d>>2]=0;d=0;break}b=Uj($(c[a+40>>2]|0,c[a+36>>2]|0)|0)|0;c[a+4834148>>2]=b;if(!b){Me(3,5472,e);rb(1)}else d=0}else d=0;else d=-1;while(0);i=f;return d|0}function Pd(a,b){a=a|0;b=b|0;var d=0,e=0,f=0,g=0,h=0,j=0;j=i;i=i+16|0;h=j+8|0;f=j;if(a){g=a+7062388|0;if((c[g>>2]|0)!=(b|0)){d=a+7062408|0;e=c[d>>2]|0;if(e){pe(e);c[d>>2]=0}switch(b|0){case 3:case 2:case 1:{c[d>>2]=oe(c[a+36>>2]|0,c[a+40>>2]|0,c[a+4>>2]|0,0)|0;break}case 4:{c[a+7062404>>2]=1;c[a+7062400>>2]=1;b=4;break}case 0:{b=0;break}default:{Me(3,3985,f);b=0}}c[g>>2]=b;if((c[a>>2]|0)==1){c[h>>2]=c[760+(b<<2)>>2];Me(3,4059,h);b=0}else b=0}else b=0}else b=-1;i=j;return b|0}function Qd(a){a=a|0;var b=0,d=0;if(!a)b=-1;else{b=a+7062408|0;d=c[b>>2]|0;if(d){pe(d);c[b>>2]=0}Vj(c[a+4834144>>2]|0);Vj(c[a+4834148>>2]|0);Vj(a);b=0}return b|0}function Rd(a,b){a=a|0;b=b|0;if((a|0)!=0&(b|0)!=0){c[b>>2]=c[a>>2];a=0}else a=-1;return a|0}function Sd(a,b){a=a|0;b=b|0;if((a|0)!=0&b>>>0<2){c[a+12>>2]=b;a=0}else a=-1;return a|0}function Td(a,b){a=a|0;b=b|0;if((a|0)!=0&(b|0)!=0){c[b>>2]=c[a+12>>2];a=0}else a=-1;return a|0}function Ud(a,b){a=a|0;b=b|0;if((a|0)==0|b>>>0>255)a=-1;else{c[a+16>>2]=b;a=0}return a|0}function Vd(a,b){a=a|0;b=b|0;if((a|0)!=0&(b|0)!=0){c[b>>2]=c[a+16>>2];a=0}else a=-1;return a|0}function Wd(a,b){a=a|0;b=b|0;if((a|0)!=0&(b|0)!=0){c[b>>2]=c[a+7062388>>2];a=0}else a=-1;return a|0}function Xd(a,b){a=a|0;b=b|0;if((a|0)!=0&b>>>0<2){c[a+20>>2]=b;a=0}else a=-1;return a|0}function Yd(a,b){a=a|0;b=b|0;if(!a)a=-1;else{c[b>>2]=c[a+20>>2];a=0}return a|0}function Zd(a,b){a=a|0;b=b|0;if((a|0)!=0&b>>>0<5){c[a+24>>2]=b;a=0}else a=-1;return a|0}function _d(a,b){a=a|0;b=b|0;if(!a)a=-1;else{c[a+7062424>>2]=b;a=0}return a|0}function $d(a,b){a=a|0;b=b|0;if((a|0)!=0&(b|0)!=0){c[b>>2]=c[a+7062424>>2];a=0}else a=-1;return a|0}function ae(a,b){a=a|0;b=b|0;if(!a)a=-1;else{c[b>>2]=c[a+24>>2];a=0}return a|0}function be(a,b){a=a|0;b=+b;if((a|0)!=0?!(b<=0.0|b>=1.0):0){h[a+7062416>>3]=b;a=0}else a=-1;return a|0}function ce(a,b){a=a|0;b=b|0;if(!a)a=-1;else{h[b>>3]=+h[a+7062416>>3];a=0}return a|0}function de(a,b){a=a|0;b=b|0;var e=0,f=0,g=0,j=0.0,k=0,l=0,m=0,n=0.0,o=0.0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0,N=0,O=0.0,P=0,Q=0,R=0.0,S=0.0;Q=i;i=i+80|0;M=Q+32|0;G=Q+24|0;z=Q;y=Q+52|0;D=Q+40|0;L=Q+64|0;P=a+44|0;c[P>>2]=0;J=a+7062388|0;f=c[J>>2]|0;a:do if((f|0)==4){I=a+7062396|0;e=c[I>>2]|0;do if((e|0)>0){f=4;e=e+-1|0}else{C=a+16|0;F=c[C>>2]|0;E=a+7062400|0;A=(c[E>>2]|0)+F|0;A=(A|0)>255?255:A;c[y>>2]=A;H=a+7062404|0;B=F-(c[H>>2]|0)|0;B=(B|0)<0?0:B;c[y+4>>2]=B;c[y+8>>2]=F;e=a+36|0;f=a+40|0;g=a+4|0;k=a+12|0;l=a+20|0;m=a+4834144|0;p=a+15416|0;q=a+15408|0;r=a+7062384|0;s=a+24|0;t=a+32|0;u=a+7062416|0;v=a+48|0;w=a+7062424|0;x=0;do{if((xe(b,c[e>>2]|0,c[f>>2]|0,c[g>>2]|0,c[a>>2]|0,c[k>>2]|0,c[y+(x<<2)>>2]|0,c[l>>2]|0,m,0)|0)<0){e=-1;break a}if((fe(c[e>>2]|0,c[f>>2]|0,m,c[l>>2]|0,1e6,70,1.0,p,q)|0)<0){e=-1;break a}if((je(b,c[e>>2]|0,c[f>>2]|0,c[g>>2]|0,p,c[q>>2]|0,c[r>>2]|0,c[l>>2]|0,c[s>>2]|0,(c[t>>2]|0)+184|0,+h[u>>3],v,P,c[w>>2]|0)|0)<0){e=-1;break a}c[D+(x<<2)>>2]=c[P>>2];x=x+1|0}while((x|0)<3);if((c[a>>2]|0)==1){N=c[D+4>>2]|0;g=c[D+8>>2]|0;f=c[D>>2]|0;c[z>>2]=B;c[z+4>>2]=N;c[z+8>>2]=F;c[z+12>>2]=g;c[z+16>>2]=A;c[z+20>>2]=f;Me(3,4153,z)}else{f=c[D>>2]|0;g=c[D+8>>2]|0}e=c[D+4>>2]|0;if((f|0)>(g|0)|(e|0)>(g|0)){f=(f|0)>=(e|0)?A:B;c[C>>2]=f;e=f-F|0;if((e|0)>0){c[E>>2]=e;e=1}else{c[E>>2]=1;e=0-e|0}c[H>>2]=e;if((c[a>>2]|0)==1){c[G>>2]=f;Me(3,4229,G)}f=c[J>>2]|0;e=c[a+7062392>>2]|0;break}e=c[E>>2]|0;f=c[H>>2]|0;do if((e|0)>=(f|0))if((e|0)>(f|0)){c[H>>2]=f+1;break}else{e=e+1|0;c[E>>2]=e;c[H>>2]=f+1;break}else{e=e+1|0;c[E>>2]=e}while(0);if((e+F|0)>254){c[E>>2]=1;e=1}if((F|0)<=(e|0))c[H>>2]=1;c[I>>2]=c[a+7062392>>2];N=47;break a}while(0);c[I>>2]=e;N=30}else N=30;while(0);b:do if((N|0)==30){c:do switch(f|0){case 3:{f=a+7062408|0;e=we(c[f>>2]|0,b,9,-7)|0;if((e|0)<0)break b;e=c[f>>2]|0;f=a+4834144|0;e=xe(c[e>>2]|0,c[e+8>>2]|0,c[e+12>>2]|0,5,c[a>>2]|0,c[a+12>>2]|0,0,0,f,c[e+4>>2]|0)|0;if((e|0)<0)break b;e=a+36|0;g=a+40|0;k=a+20|0;break}case 2:case 1:{g=a+7062396|0;e=c[g>>2]|0;if((e|0)>0){c[g>>2]=e+-1;N=44;break c}e=c[a+7062408>>2]|0;if((f|0)==1)e=ue(e,b,L)|0;else e=ve(e,b,L)|0;if((e|0)<0)break b;e=a+16|0;if((c[a>>2]|0)==1?(K=d[L>>0]|0,(c[e>>2]|0)!=(K|0)):0){c[M>>2]=(c[J>>2]|0)==1?4281:4288;c[M+4>>2]=K;Me(3,4293,M)}c[e>>2]=d[L>>0];c[g>>2]=c[a+7062392>>2];N=44;break}default:N=44}while(0);if((N|0)==44){e=a+36|0;g=a+40|0;k=a+20|0;f=a+4834144|0;if((xe(b,c[e>>2]|0,c[g>>2]|0,c[a+4>>2]|0,c[a>>2]|0,c[a+12>>2]|0,c[a+16>>2]|0,c[k>>2]|0,f,0)|0)<0){e=-1;break}}l=a+15416|0;m=a+15408|0;if((fe(c[e>>2]|0,c[g>>2]|0,f,c[k>>2]|0,1e6,70,1.0,l,m)|0)>=0?(je(b,c[e>>2]|0,c[g>>2]|0,c[a+4>>2]|0,l,c[m>>2]|0,c[a+7062384>>2]|0,c[k>>2]|0,c[a+24>>2]|0,(c[a+32>>2]|0)+184|0,+h[a+7062416>>3],a+48|0,P,c[a+7062424>>2]|0)|0)>=0:0)N=47;else e=-1}while(0);d:do if((N|0)==47){t=a+28|0;if((c[t>>2]|0)==1){ee(a);e=0;break}u=a+4818296|0;r=a+24|0;q=c[u>>2]|0;if((q|0)>0){s=0;do{f=c[P>>2]|0;g=a+4818304+(s*264|0)+56|0;k=a+4818304+(s*264|0)+64|0;if((f|0)>0){o=+(c[a+4818304+(s*264|0)>>2]|0);e=-1;l=0;n=.5;while(1){j=+(c[a+48+(l<<8)>>2]|0);R=o/j;if(!(R<.7|R>1.43)?(R=+h[a+48+(l<<8)+56>>3]-+h[g>>3],O=+h[a+48+(l<<8)+64>>3]-+h[k>>3],O=(R*R+O*O)/j,O<n):0){e=l;j=O}else j=n;l=l+1|0;if((l|0)>=(f|0)){p=e;break}else n=j}}else p=-1;e:do if((p|0)>-1){m=c[r>>2]|0;switch(m|0){case 2:case 1:case 0:break;case 4:case 3:{g=a+48+(p<<8)+40|0;j=+h[a+4818304+(s*264|0)+40>>3];if(!(+h[g>>3]<j)){e=a+48+(p<<8)+48|0;f=a+4818304+(s*264|0)+48|0;if(!(+h[e>>3]<+h[f>>3]))break e}else{f=a+4818304+(s*264|0)+48|0;e=a+48+(p<<8)+48|0}h[g>>3]=j;c[a+48+(p<<8)+8>>2]=c[a+4818304+(s*264|0)+8>>2];h[e>>3]=+h[f>>3];c[a+48+(p<<8)+12>>2]=c[a+4818304+(s*264|0)+12>>2];e=-1;n=1.0e8;g=0;while(1){j=0.0;f=0;do{b=(f+g|0)%4|0;o=+h[a+4818304+(s*264|0)+168+(f<<4)>>3]-+h[a+48+(p<<8)+168+(b<<4)>>3];R=+h[a+4818304+(s*264|0)+168+(f<<4)+8>>3]-+h[a+48+(p<<8)+168+(b<<4)+8>>3];j=j+(o*o+R*R);f=f+1|0}while((f|0)!=4);f=j<n;e=f?g:e;g=g+1|0;if((g|0)==4)break;else n=f?j:n}b=4-e|0;c[a+48+(p<<8)+20>>2]=(b+(c[a+4818304+(s*264|0)+20>>2]|0)|0)%4|0;c[a+48+(p<<8)+24>>2]=(b+(c[a+4818304+(s*264|0)+24>>2]|0)|0)%4|0;break e}default:{e=-1;break d}}e=a+48+(p<<8)+32|0;o=+h[a+4818304+(s*264|0)+32>>3];if(+h[e>>3]<o){h[e>>3]=o;l=c[a+4818304+(s*264|0)+4>>2]|0;c[a+48+(p<<8)+4>>2]=l;g=a+4818304+(s*264|0)+16|0;e=-1;n=1.0e8;k=0;while(1){j=0.0;f=0;do{b=(f+k|0)%4|0;S=+h[a+4818304+(s*264|0)+168+(f<<4)>>3]-+h[a+48+(p<<8)+168+(b<<4)>>3];R=+h[a+4818304+(s*264|0)+168+(f<<4)+8>>3]-+h[a+48+(p<<8)+168+(b<<4)+8>>3];j=j+(S*S+R*R);f=f+1|0}while((f|0)!=4);if(j<n)e=(4-k+(c[g>>2]|0)|0)%4|0;else j=n;k=k+1|0;if((k|0)==4)break;else n=j}c[a+48+(p<<8)+16>>2]=e;if(m>>>0<2){c[a+48+(p<<8)+8>>2]=l;h[a+48+(p<<8)+40>>3]=o;c[a+48+(p<<8)+20>>2]=e;break}else{c[a+48+(p<<8)+12>>2]=l;h[a+48+(p<<8)+48>>3]=o;c[a+48+(p<<8)+24>>2]=e;break}}}while(0);s=s+1|0}while((s|0)<(q|0))}ee(a);if((c[u>>2]|0)>0){g=0;e=0;do{f=a+4818304+(g*264|0)|0;N=a+4818304+(g*264|0)+256|0;b=(c[N>>2]|0)+1|0;c[N>>2]=b;if((b|0)<4){if((g|0)!=(e|0))ik(a+4818304+(e*264|0)|0,f|0,264)|0;e=e+1|0}g=g+1|0}while((g|0)<(c[u>>2]|0))}else e=0;c[u>>2]=e;e=c[P>>2]|0;f:do if((e|0)>0){m=0;do{k=a+48+(m<<8)|0;g=c[a+48+(m<<8)+4>>2]|0;if((g|0)>=0){l=c[u>>2]|0;g:do if((l|0)>0){f=0;do{if((c[a+4818304+(f*264|0)+4>>2]|0)==(g|0))break g;f=f+1|0}while((f|0)<(l|0))}else f=0;while(0);if((f|0)==(l|0)){if((l|0)==60)break f;c[u>>2]=l+1}ik(a+4818304+(f*264|0)|0,k|0,256)|0;c[a+4818304+(f*264|0)+256>>2]=1}m=m+1|0;e=c[P>>2]|0}while((m|0)<(e|0))}while(0);if((c[t>>2]|0)!=2?(c[u>>2]|0)>0:0){l=0;while(1){g=a+4818304+(l*264|0)+56|0;k=a+4818304+(l*264|0)+64|0;h:do if((e|0)>0){n=+(c[a+4818304+(l*264|0)>>2]|0);f=0;do{j=+(c[a+48+(f<<8)>>2]|0);S=n/j;if(!(S<.7|S>1.43)?(R=+h[a+48+(f<<8)+56>>3]-+h[g>>3],S=+h[a+48+(f<<8)+64>>3]-+h[k>>3],(R*R+S*S)/j<.5):0)break h;f=f+1|0}while((f|0)<(e|0))}else f=0;while(0);if((f|0)==(e|0)){ik(a+48+(e<<8)|0,a+4818304+(l*264|0)|0,256)|0;e=(c[P>>2]|0)+1|0;c[P>>2]=e}l=l+1|0;if((l|0)>=(c[u>>2]|0)){e=0;break}}}else e=0}while(0);i=Q;return e|0}function ee(a){a=a|0;var b=0,d=0,e=0,f=0;switch(c[a+24>>2]|0){case 1:case 0:{d=c[a+44>>2]|0;if((d|0)>0){e=0;do{b=a+48+(e<<8)+4|0;if((c[b>>2]|0)>-1?+h[a+48+(e<<8)+32>>3]<.5:0){c[a+48+(e<<8)+8>>2]=-1;c[b>>2]=-1;c[a+48+(e<<8)+236>>2]=6}e=e+1|0}while((e|0)<(d|0))}break}case 2:{d=c[a+44>>2]|0;if((d|0)>0){e=0;do{b=a+48+(e<<8)+4|0;if((c[b>>2]|0)>-1?+h[a+48+(e<<8)+32>>3]<.5:0){c[a+48+(e<<8)+12>>2]=-1;c[b>>2]=-1;c[a+48+(e<<8)+236>>2]=6}e=e+1|0}while((e|0)<(d|0))}break}default:{e=c[a+44>>2]|0;if((e|0)>0){f=0;do{b=a+48+(f<<8)+8|0;if((c[b>>2]|0)>-1?+h[a+48+(f<<8)+40>>3]<.5:0){c[b>>2]=-1;d=0}else d=1;b=a+48+(f<<8)+12|0;if(((c[b>>2]|0)>-1?+h[a+48+(f<<8)+48>>3]<.5:0)?(c[b>>2]=-1,(d|0)==0):0)c[a+48+(f<<8)+236>>2]=6;f=f+1|0}while((f|0)<(e|0))}}}return}function fe(a,b,d,e,f,g,j,k,l){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;j=+j;k=k|0;l=l|0;var m=0.0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0.0;L=i;i=i+96|0;F=L+56|0;H=L+48|0;G=L+8|0;I=L;K=(e|0)==1;if(K){a=(a|0)/2|0;b=(b|0)/2|0;f=(f|0)/4|0;g=(g|0)/4|0}c[l>>2]=0;C=d+8|0;D=a+-2|0;z=b+-2|0;A=d+1179664|0;a:do if((c[C>>2]|0)>0){B=0;while(1){w=d+12+(B<<2)|0;y=c[w>>2]|0;b:do if(((((!((y|0)<(g|0)|(y|0)>(f|0))?(E=d+131084+(B<<4)|0,(c[E>>2]|0)!=1):0)?(c[d+131084+(B<<4)+4>>2]|0)!=(D|0):0)?(c[d+131084+(B<<4)+8>>2]|0)!=1:0)?(c[d+131084+(B<<4)+12>>2]|0)!=(z|0):0)?(ge(c[d>>2]|0,a,0,A,B+1|0,E,k+((c[l>>2]|0)*80048|0)|0)|0)>=0:0){t=c[w>>2]|0;x=c[l>>2]|0;u=k+(x*80048|0)+28|0;b=c[u>>2]|0;v=k+(x*80048|0)+40028|0;n=c[v>>2]|0;y=k+(x*80048|0)+24|0;o=(c[y>>2]|0)+-1|0;if((o|0)>1){r=0;s=1;e=0;while(1){p=(c[k+(x*80048|0)+28+(s<<2)>>2]|0)-b|0;p=$(p,p)|0;q=(c[k+(x*80048|0)+40028+(s<<2)>>2]|0)-n|0;p=($(q,q)|0)+p|0;q=(p|0)>(r|0);e=q?s:e;s=s+1|0;if((s|0)>=(o|0))break;else r=q?p:r}}else e=0;m=+(t|0)/.75*.01*j;c[H>>2]=0;c[I>>2]=0;c:do if((he(u,v,0,e,m,F,H)|0)>=0?(he(u,v,e,(c[y>>2]|0)+-1|0,m,G,I)|0)>=0:0){b=c[H>>2]|0;n=c[I>>2]|0;do if((b|0)==1&(n|0)==1){b=c[G>>2]|0;n=c[F>>2]|0}else{if((b|0)>1&(n|0)==0){b=(e|0)/2|0;c[I>>2]=0;c[H>>2]=0;if((he(u,v,0,b,m,F,H)|0)<0)break c;if((he(u,v,b,e,m,G,I)|0)<0)break c;if(!((c[H>>2]|0)==1&(c[I>>2]|0)==1))break c;b=e;n=c[F>>2]|0;e=c[G>>2]|0;break}if(!((b|0)==0&(n|0)>1))break c;b=(e+-1+(c[y>>2]|0)|0)/2|0;c[I>>2]=0;c[H>>2]=0;if((he(u,v,e,b,m,F,H)|0)<0)break c;if((he(u,v,b,(c[y>>2]|0)+-1|0,m,G,I)|0)<0)break c;if(!((c[H>>2]|0)==1&(c[I>>2]|0)==1))break c;b=c[G>>2]|0;n=e;e=c[F>>2]|0}while(0);c[k+(x*80048|0)+80028>>2]=0;c[k+(x*80048|0)+80032>>2]=n;c[k+(x*80048|0)+80036>>2]=e;c[k+(x*80048|0)+80040>>2]=b;c[k+(x*80048|0)+80044>>2]=(c[y>>2]|0)+-1;c[k+((c[l>>2]|0)*80048|0)>>2]=c[w>>2];y=c[l>>2]|0;h[k+(y*80048|0)+8>>3]=+h[d+655376+(B<<4)>>3];h[k+(y*80048|0)+16>>3]=+h[d+655376+(B<<4)+8>>3];y=y+1|0;c[l>>2]=y;if((y|0)==60){e=60;break a}else break b}while(0)}while(0);B=B+1|0;if((B|0)>=(c[C>>2]|0)){J=4;break}}}else J=4;while(0);if((J|0)==4)e=c[l>>2]|0;if((e|0)>0){o=0;do{a=o;o=o+1|0;g=k+(a*80048|0)+16|0;n=k+(a*80048|0)|0;if((o|0)<(e|0)){j=+h[k+(a*80048|0)+8>>3];f=o;do{M=j-+h[k+(f*80048|0)+8>>3];m=+h[g>>3]-+h[k+(f*80048|0)+16>>3];m=M*M+m*m;e=c[n>>2]|0;a=k+(f*80048|0)|0;b=c[a>>2]|0;if((e|0)>(b|0)){if(m<+((e|0)/4|0|0))c[a>>2]=0}else if(m<+((b|0)/4|0|0))c[n>>2]=0;f=f+1|0;e=c[l>>2]|0}while((f|0)<(e|0))}}while((o|0)<(e|0))}if((e|0)>0){f=0;do{if(!(c[k+(f*80048|0)>>2]|0)){a=f+1|0;if((a|0)<(e|0)){e=f;b=a;while(1){ik(k+(e*80048|0)|0,k+(b*80048|0)|0,80048)|0;e=c[l>>2]|0;a=b+1|0;if((a|0)<(e|0)){e=b;b=a}else break}}e=e+-1|0;c[l>>2]=e}f=f+1|0}while((f|0)<(e|0))}if(K&(e|0)>0){b=0;while(1){c[k>>2]=c[k>>2]<<2;e=k+8|0;h[e>>3]=+h[e>>3]*2.0;e=k+16|0;h[e>>3]=+h[e>>3]*2.0;e=k+24|0;if((c[e>>2]|0)>0){a=0;do{K=k+28+(a<<2)|0;c[K>>2]=c[K>>2]<<1;K=k+40028+(a<<2)|0;c[K>>2]=c[K>>2]<<1;a=a+1|0}while((a|0)<(c[e>>2]|0))}b=b+1|0;if((b|0)>=(c[l>>2]|0))break;else k=k+80048|0}}i=L;return 0}function ge(a,d,e,f,g,h,j){a=a|0;d=d|0;e=e|0;f=f|0;g=g|0;h=h|0;j=j|0;var k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0;w=i;i=i+80032|0;p=w+16|0;o=w+8|0;l=w;u=w+40024|0;v=w+24|0;t=c[h+8>>2]|0;e=c[h>>2]|0;h=c[h+4>>2]|0;a:do if((e|0)<=(h|0)){k=e;e=a+(($(t,d)|0)+e<<1)|0;while(1){s=b[e>>1]|0;if(s<<16>>16>0?(c[f+((s<<16>>16)+-1<<2)>>2]|0)==(g|0):0){n=k;break}if((k|0)<(h|0)){k=k+1|0;e=e+2|0}else{x=6;break a}}q=j+24|0;c[q>>2]=1;r=j+28|0;c[r>>2]=n;s=j+40028|0;c[s>>2]=t;f=t;m=n;k=1;e=5;while(1){h=(e+5|0)%8|0;e=0;while(1){g=c[776+(h<<2)>>2]|0;l=c[808+(h<<2)>>2]|0;if((b[a+(l+m+($(g+f|0,d)|0)<<1)>>1]|0)>0){e=g;g=h;break}e=e+1|0;h=(h+1|0)%8|0;if((e|0)>=8){x=11;break}}if((x|0)==11){x=0;if((e|0)==8){x=13;break}l=c[808+(h<<2)>>2]|0;e=c[776+(h<<2)>>2]|0;g=h}c[j+28+(k<<2)>>2]=l+m;h=c[q>>2]|0;c[j+40028+(h<<2)>>2]=e+(c[j+40028+(h+-1<<2)>>2]|0);e=c[q>>2]|0;h=j+28+(e<<2)|0;if((c[h>>2]|0)==(n|0)?(c[j+40028+(e<<2)>>2]|0)==(t|0):0){f=e;x=16;break}k=e+1|0;c[q>>2]=k;if((k|0)==9999){x=19;break}f=c[j+40028+(e<<2)>>2]|0;m=c[h>>2]|0;e=g}if((x|0)==13){Me(3,4347,o);e=-1;break}else if((x|0)==16){if((f|0)>1){l=0;g=1;h=0;while(1){e=(c[j+28+(g<<2)>>2]|0)-n|0;e=$(e,e)|0;k=(c[j+40028+(g<<2)>>2]|0)-t|0;e=($(k,k)|0)+e|0;k=(e|0)>(l|0);h=k?g:h;g=g+1|0;if((g|0)>=(f|0))break;else l=k?e:l}}else h=0;if((h|0)>0){e=0;do{c[u+(e<<2)>>2]=c[j+28+(e<<2)>>2];c[v+(e<<2)>>2]=c[j+40028+(e<<2)>>2];e=e+1|0}while((e|0)<(h|0))}if((h|0)<(f|0)){e=h;do{t=e-h|0;c[j+28+(t<<2)>>2]=c[j+28+(e<<2)>>2];c[j+40028+(t<<2)>>2]=c[j+40028+(e<<2)>>2];e=e+1|0}while((e|0)<(c[q>>2]|0))}if((h|0)>0){e=0;do{t=e-h|0;c[j+28+((c[q>>2]|0)+t<<2)>>2]=c[u+(e<<2)>>2];c[j+40028+((c[q>>2]|0)+t<<2)>>2]=c[v+(e<<2)>>2];e=e+1|0}while((e|0)<(h|0))}c[j+28+(c[q>>2]<<2)>>2]=c[r>>2];c[j+40028+(c[q>>2]<<2)>>2]=c[s>>2];c[q>>2]=(c[q>>2]|0)+1;e=0;break}else if((x|0)==19){Me(3,4354,p);e=-1;break}}else x=6;while(0);if((x|0)==6){Me(3,4340,l);e=-1}i=w;return e|0}function he(a,b,d,e,f,g,h){a=a|0;b=b|0;d=d|0;e=e|0;f=+f;g=g|0;h=h|0;var i=0,j=0.0,k=0.0,l=0,m=0.0,n=0,o=0.0,p=0,q=0,r=0,s=0.0;i=c[b+(e<<2)>>2]|0;q=c[b+(d<<2)>>2]|0;o=+(i-q|0);l=c[a+(d<<2)>>2]|0;r=c[a+(e<<2)>>2]|0;m=+(l-r|0);k=+(($(r,q)|0)-($(l,i)|0)|0);i=d+1|0;if((i|0)<(e|0)){j=0.0;l=i;do{s=k+(o*+(c[a+(l<<2)>>2]|0)+m*+(c[b+(l<<2)>>2]|0));s=s*s;r=s>j;j=r?s:j;i=r?l:i;l=l+1|0}while((l|0)<(e|0))}else j=0.0;if(j/(o*o+m*m)>f)if(((he(a,b,d,i,f,g,h)|0)>=0?(n=c[h>>2]|0,(n|0)<=5):0)?(c[g+(n<<2)>>2]=i,c[h>>2]=(c[h>>2]|0)+1,(he(a,b,i,e,f,g,h)|0)>=0):0)p=7;else i=-1;else p=7;if((p|0)==7)i=0;return i|0}function ie(a,b,d,e,f,j,k){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;j=j|0;k=k|0;var l=0,m=0.0,n=0,o=0.0,p=0.0,q=0,r=0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0;y=i;i=i+16|0;t=y+4|0;u=y;v=nf(2)|0;w=nf(2)|0;x=Re(2,2)|0;q=0;a:while(1){r=q;q=q+1|0;s=c[e+(q<<2)>>2]|0;l=c[e+(r<<2)>>2]|0;p=+(s+1-l|0)*.05+.5;l=~~(+(l|0)+p);s=~~(+(s|0)-p)-l|0;n=s+1|0;d=Re(n,2)|0;if((s|0)>-1){s=0;do{z=s+l|0;if((mf(f,+(c[a+(z<<2)>>2]|0),+(c[b+(z<<2)>>2]|0),t,u)|0)<0){l=10;break a}z=s<<1;A=c[d>>2]|0;h[A+(z<<3)>>3]=+g[t>>2];h[A+((z|1)<<3)>>3]=+g[u>>2];s=s+1|0}while((s|0)<(n|0))}if((Ye(d,x,v,w)|0)<0){l=10;break}A=c[x>>2]|0;o=+h[A+8>>3];h[j+(r*24|0)>>3]=o;p=-+h[A>>3];h[j+(r*24|0)+8>>3]=p;A=c[w>>2]|0;h[j+(r*24|0)+16>>3]=-(o*+h[A>>3]+ +h[A+8>>3]*p);We(d)|0;if((q|0)>=4){l=7;break}}b:do if((l|0)==7){We(x)|0;of(w)|0;of(v)|0;q=0;while(1){d=(q+3|0)%4|0;l=j+(d*24|0)|0;m=+h[j+(q*24|0)+8>>3];n=j+(q*24|0)|0;o=+h[j+(d*24|0)+8>>3];p=+h[l>>3]*m-+h[n>>3]*o;if(+O(+p)<.0001){d=-1;break b}A=j+(q*24|0)+16|0;z=j+(d*24|0)+16|0;h[k+(q<<4)>>3]=(o*+h[A>>3]-m*+h[z>>3])/p;h[k+(q<<4)+8>>3]=(+h[n>>3]*+h[z>>3]-+h[l>>3]*+h[A>>3])/p;q=q+1|0;if((q|0)>=4){d=0;break}}}else if((l|0)==10){We(d)|0;We(x)|0;of(w)|0;of(v)|0;d=-1}while(0);i=y;return d|0}function je(a,b,d,e,f,j,k,l,m,n,o,p,q,r){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;j=j|0;k=k|0;l=l|0;m=m|0;n=n|0;o=+o;p=p|0;q=q|0;r=r|0;var s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0;F=i;i=i+16|0;D=F+4|0;E=F;z=m>>>0<2;A=(m|0)==2;if((j|0)>0){C=0;s=0;do{c[p+(s<<8)>>2]=c[f+(C*80048|0)>>2];if((mf(n,+h[f+(C*80048|0)+8>>3],+h[f+(C*80048|0)+16>>3],D,E)|0)>=0?(h[p+(s<<8)+56>>3]=+g[D>>2],h[p+(s<<8)+64>>3]=+g[E>>2],B=p+(s<<8)+168|0,(ie(f+(C*80048|0)+28|0,f+(C*80048|0)+40028|0,c[f+(C*80048|0)+24>>2]|0,f+(C*80048|0)+80028|0,n,p+(s<<8)+72|0,B)|0)>=0):0){t=p+(s<<8)+8|0;u=p+(s<<8)+20|0;v=p+(s<<8)+40|0;w=p+(s<<8)+12|0;x=p+(s<<8)+24|0;y=p+(s<<8)+48|0;switch(De(k,l,m,a,b,d,e,n,B,o,t,u,v,w,x,y,r,p+(s<<8)+240|0,p+(s<<8)+248|0)|0){case 0:{c[p+(s<<8)+236>>2]=0;break}case -1:{c[p+(s<<8)+236>>2]=2;break}case -2:{c[p+(s<<8)+236>>2]=3;break}case -3:{c[p+(s<<8)+236>>2]=4;break}case -4:{c[p+(s<<8)+236>>2]=5;break}case -5:{c[p+(s<<8)+236>>2]=9;break}case -6:{c[p+(s<<8)+236>>2]=1;break}default:{}}if(!z){if(A){c[p+(s<<8)+4>>2]=c[w>>2];c[p+(s<<8)+16>>2]=c[x>>2];h[p+(s<<8)+32>>3]=+h[y>>3]}}else{c[p+(s<<8)+4>>2]=c[t>>2];c[p+(s<<8)+16>>2]=c[u>>2];h[p+(s<<8)+32>>3]=+h[v>>3]}s=s+1|0}C=C+1|0}while((C|0)<(j|0))}else s=0;c[q>>2]=s;i=F;return 0}function ke(a,b,d,e){a=a|0;b=b|0;d=+d;e=e|0;var f=0,g=0,j=0,k=0,l=0,m=0,n=0.0,o=0,p=0;k=i;i=i+288|0;m=k+200|0;l=k+104|0;f=k+264|0;j=k+8|0;g=k;o=c[b+16>>2]|0;p=(4-o|0)%4|0;h[m>>3]=+h[b+168+(p<<4)>>3];h[m+8>>3]=+h[b+168+(p<<4)+8>>3];p=(5-o|0)%4|0;h[m+16>>3]=+h[b+168+(p<<4)>>3];h[m+24>>3]=+h[b+168+(p<<4)+8>>3];p=(6-o|0)%4|0;h[m+32>>3]=+h[b+168+(p<<4)>>3];h[m+40>>3]=+h[b+168+(p<<4)+8>>3];o=(7-o|0)%4|0;h[m+48>>3]=+h[b+168+(o<<4)>>3];h[m+56>>3]=+h[b+168+(o<<4)+8>>3];n=d*-.5;h[l>>3]=n;d=d*.5;h[l+8>>3]=d;h[l+16>>3]=0.0;h[l+24>>3]=d;h[l+32>>3]=d;h[l+40>>3]=0.0;h[l+48>>3]=d;h[l+56>>3]=n;h[l+64>>3]=0.0;h[l+72>>3]=n;h[l+80>>3]=n;h[l+88>>3]=0.0;c[f>>2]=m;c[f+4>>2]=l;c[f+8>>2]=4;if((Ef(c[a>>2]|0,m,l,4,j)|0)<0)d=1.0e8;else{p=(zf(c[a>>2]|0,f,j,e,g)|0)<0;d=p?1.0e8:+h[g>>3]}i=k;return +d}function le(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=+e;f=f|0;var g=0,j=0,k=0,l=0,m=0,n=0.0,o=0,p=0;j=i;i=i+192|0;m=j+104|0;l=j+8|0;k=j+168|0;g=j;o=c[b+16>>2]|0;p=(4-o|0)%4|0;h[m>>3]=+h[b+168+(p<<4)>>3];h[m+8>>3]=+h[b+168+(p<<4)+8>>3];p=(5-o|0)%4|0;h[m+16>>3]=+h[b+168+(p<<4)>>3];h[m+24>>3]=+h[b+168+(p<<4)+8>>3];p=(6-o|0)%4|0;h[m+32>>3]=+h[b+168+(p<<4)>>3];h[m+40>>3]=+h[b+168+(p<<4)+8>>3];o=(7-o|0)%4|0;h[m+48>>3]=+h[b+168+(o<<4)>>3];h[m+56>>3]=+h[b+168+(o<<4)+8>>3];n=e*-.5;h[l>>3]=n;e=e*.5;h[l+8>>3]=e;h[l+16>>3]=0.0;h[l+24>>3]=e;h[l+32>>3]=e;h[l+40>>3]=0.0;h[l+48>>3]=e;h[l+56>>3]=n;h[l+64>>3]=0.0;h[l+72>>3]=n;h[l+80>>3]=n;h[l+88>>3]=0.0;c[k>>2]=m;c[k+4>>2]=l;c[k+8>>2]=4;b=(zf(c[a>>2]|0,k,d,f,g)|0)<0;i=j;return +(b?1.0e8:+h[g>>3])}function me(a,b,d,e,f,g){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;var j=0,k=0,l=0,m=0,n=0,o=0,p=0;p=i;i=i+32|0;m=p+20|0;n=p;j=Uj(f<<4)|0;c[m>>2]=j;if(!j){Me(3,5472,p+8|0);rb(1)}k=Uj(f*24|0)|0;l=m+4|0;c[l>>2]=k;if(!k){Me(3,5472,p+16|0);rb(1)}if((f|0)>0){o=0;do{h[j+(o<<4)>>3]=+h[d+(o<<4)>>3];h[j+(o<<4)+8>>3]=+h[d+(o<<4)+8>>3];h[k+(o*24|0)>>3]=+h[e+(o*24|0)>>3];h[k+(o*24|0)+8>>3]=+h[e+(o*24|0)+8>>3];h[k+(o*24|0)+16>>3]=+h[e+(o*24|0)+16>>3];o=o+1|0}while((o|0)<(f|0))}c[m+8>>2]=f;if((zf(c[a>>2]|0,m,b,g,n)|0)<0)h[n>>3]=1.0e8;Vj(c[m>>2]|0);Vj(c[l>>2]|0);i=p;return +(+h[n>>3])}function ne(a,b,d,e,f,g){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;var j=0,k=0,l=0,m=0,n=0,o=0,p=0;p=i;i=i+32|0;m=p+20|0;n=p;j=Uj(f<<4)|0;c[m>>2]=j;if(!j){Me(3,5472,p+8|0);rb(1)}k=Uj(f*24|0)|0;l=m+4|0;c[l>>2]=k;if(!k){Me(3,5472,p+16|0);rb(1)}if((f|0)>0){o=0;do{h[j+(o<<4)>>3]=+h[d+(o<<4)>>3];h[j+(o<<4)+8>>3]=+h[d+(o<<4)+8>>3];h[k+(o*24|0)>>3]=+h[e+(o*24|0)>>3];h[k+(o*24|0)+8>>3]=+h[e+(o*24|0)+8>>3];h[k+(o*24|0)+16>>3]=+h[e+(o*24|0)+16>>3];o=o+1|0}while((o|0)<(f|0))}c[m+8>>2]=f;if((Bf(c[a>>2]|0,m,b,g,n)|0)<0)h[n>>3]=1.0e8;Vj(c[m>>2]|0);Vj(c[l>>2]|0);i=p;return +(+h[n>>3])}function oe(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0,g=0;f=Uj(2080)|0;a:do if(f){c[f+2068>>2]=d;b:do if(!e){switch(d|0){case 5:case 12:case 13:case 14:break;default:{g=4;break b}}c[f+2076>>2]=0}else g=4;while(0);do if((g|0)==4){g=Uj($(b,a)|0)|0;c[f>>2]=g;if(!g){Vj(f);f=0;break a}else{c[f+2076>>2]=1;break}}while(0);c[f+2072>>2]=e;c[f+4>>2]=0;c[f+8>>2]=a;c[f+12>>2]=b}while(0);return f|0}function pe(a){a=a|0;if(a){if(c[a+2076>>2]|0)Vj(c[a>>2]|0);Vj(c[a+4>>2]|0);Vj(a)}return}function qe(b,e){b=b|0;e=e|0;var f=0,g=0,h=0,j=0,k=0,l=0,m=0;k=i;i=i+16|0;g=k;f=c[b+2068>>2]|0;a:do switch(f|0){case 5:case 12:case 13:case 14:if(!(c[b+2072>>2]|0)){c[b>>2]=e;f=0;break a}else{ik(c[b>>2]|0,e|0,$(c[b+12>>2]|0,c[b+8>>2]|0)|0)|0;f=0;break a}default:{if((f&-2|0)==2){f=b+8|0;g=b+12|0;if(!($(c[g>>2]|0,c[f>>2]|0)|0)){f=0;break a}else{h=0;j=0}while(1){a[(c[b>>2]|0)+h>>0]=(((d[e+(j|1)>>0]|0)+(d[e+j>>0]|0)+(d[e+(j|2)>>0]|0)|0)>>>0)/3|0;h=h+1|0;if(h>>>0>=($(c[g>>2]|0,c[f>>2]|0)|0)>>>0){f=0;break a}else j=j+4|0}}if((f&-3|0)==4){f=b+8|0;g=b+12|0;if(!($(c[g>>2]|0,c[f>>2]|0)|0)){f=0;break a}else{h=0;j=0}while(1){a[(c[b>>2]|0)+h>>0]=(((d[e+(j|2)>>0]|0)+(d[e+(j|1)>>0]|0)+(d[e+(j|3)>>0]|0)|0)>>>0)/3|0;h=h+1|0;if(h>>>0>=($(c[g>>2]|0,c[f>>2]|0)|0)>>>0){f=0;break a}else j=j+4|0}}if(f>>>0<2){f=b+8|0;g=b+12|0;if(!($(c[g>>2]|0,c[f>>2]|0)|0)){f=0;break a}else{h=0;j=0}while(1){a[(c[b>>2]|0)+h>>0]=(((d[e+(j+1)>>0]|0)+(d[e+j>>0]|0)+(d[e+(j+2)>>0]|0)|0)>>>0)/3|0;h=h+1|0;if(h>>>0>=($(c[g>>2]|0,c[f>>2]|0)|0)>>>0){f=0;break a}else j=j+3|0}}switch(f|0){case 8:{f=b+8|0;g=b+12|0;if(!($(c[g>>2]|0,c[f>>2]|0)|0)){f=0;break a}else{h=0;j=0}while(1){a[(c[b>>2]|0)+h>>0]=a[e+j>>0]|0;h=h+1|0;if(h>>>0>=($(c[g>>2]|0,c[f>>2]|0)|0)>>>0){f=0;break}else j=j+2|0}break}case 7:{f=b+8|0;g=b+12|0;if(!($(c[g>>2]|0,c[f>>2]|0)|0)){f=0;break a}else{h=0;j=0}while(1){a[(c[b>>2]|0)+h>>0]=a[e+(j|1)>>0]|0;h=h+1|0;if(h>>>0>=($(c[g>>2]|0,c[f>>2]|0)|0)>>>0){f=0;break}else j=j+2|0}break}case 9:{f=b+8|0;g=b+12|0;if(!($(c[g>>2]|0,c[f>>2]|0)|0)){f=0;break a}else{h=0;j=0}while(1){m=d[e+j>>0]|0;l=d[e+(j|1)>>0]|0;a[(c[b>>2]|0)+h>>0]=(((m&248)+10+(m<<5&224)+(l>>>3&28)+(l<<3&248)|0)>>>0)/3|0;h=h+1|0;if(h>>>0>=($(c[g>>2]|0,c[f>>2]|0)|0)>>>0){f=0;break}else j=j+2|0}break}case 10:{f=b+8|0;g=b+12|0;if(!($(c[g>>2]|0,c[f>>2]|0)|0)){f=0;break a}else{h=0;j=0}while(1){l=d[e+j>>0]|0;m=d[e+(j|1)>>0]|0;a[(c[b>>2]|0)+h>>0]=(((l&248)+12+(l<<5&224)+(m>>>3&24)+(m<<2&248)|0)>>>0)/3|0;h=h+1|0;if(h>>>0>=($(c[g>>2]|0,c[f>>2]|0)|0)>>>0){f=0;break}else j=j+2|0}break}case 11:{f=b+8|0;g=b+12|0;if(!($(c[g>>2]|0,c[f>>2]|0)|0)){f=0;break a}else{h=0;j=0}while(1){m=d[e+j>>0]|0;a[(c[b>>2]|0)+h>>0]=(((m&240)+24+(m<<4&240)+((d[e+(j|1)>>0]|0)&240)|0)>>>0)/3|0;h=h+1|0;if(h>>>0>=($(c[g>>2]|0,c[f>>2]|0)|0)>>>0){f=0;break}else j=j+2|0}break}default:{Me(3,4361,g);f=-1;break a}}}}while(0);i=k;return f|0}function re(a,b){a=a|0;b=b|0;var e=0,f=0;if((a|0)!=0&(b|0)!=0?(qe(a,b)|0)>=0:0){ek(a+16|0,0,1024)|0;b=c[a>>2]|0;f=$(c[a+12>>2]|0,c[a+8>>2]|0)|0;e=b+f|0;if((f|0)>0){do{f=a+16+((d[b>>0]|0)<<2)|0;c[f>>2]=(c[f>>2]|0)+1;b=b+1|0}while(b>>>0<e>>>0);b=0}else b=0}else b=-1;return b|0}function se(a,b){a=a|0;b=b|0;var d=0;b=re(a,b)|0;if((b|0)>=0){b=0;d=0;do{b=(c[a+16+(d<<2)>>2]|0)+b|0;c[a+1040+(d<<2)>>2]=b;d=d+1|0}while((d|0)!=256);b=0}return b|0}function te(b,d,e,f){b=b|0;d=d|0;e=+e;f=f|0;var g=0,h=0,i=0;if(!(e<0.0|e>1.0)){d=se(b,d)|0;if((d|0)>=0){i=~~(+($(c[b+12>>2]|0,c[b+8>>2]|0)|0)*e)>>>0;d=0;while(1){h=d&255;g=c[b+1040+(h<<2)>>2]|0;if(g>>>0<i>>>0)d=d+1<<24>>24;else break}if((g|0)==(i|0))do d=d+1<<24>>24;while((c[b+1040+((d&255)<<2)>>2]|0)==(i|0));a[f>>0]=((d&255)+h|0)>>>1;d=0}}else d=-1;return d|0}function ue(a,b,c){a=a|0;b=b|0;c=c|0;return te(a,b,.5,c)|0}function ve(b,d,e){b=b|0;d=d|0;e=e|0;var f=0.0,g=0,h=0.0,i=0.0,j=0.0,k=0.0,l=0,m=0.0,n=0.0;d=re(b,d)|0;if((d|0)>=0){d=1;f=0.0;do{f=f+ +(($(c[b+16+(d<<2)>>2]|0,d)|0)>>>0);d=d+1|0}while((d|0)!=256);k=+($(c[b+12>>2]|0,c[b+8>>2]|0)|0);l=0;h=0.0;d=0;j=0.0;m=0.0;while(1){g=c[b+16+(l<<2)>>2]|0;m=m+ +(g>>>0);if(m!=0.0){i=k-m;if(i==0.0)break;h=h+ +(($(l,g)|0)>>>0);n=h/m-(f-h)/i;i=n*(m*i*n);if(i>j)d=l&255;else i=j}else i=j;if((l&255)<<24>>24==-1)break;else{l=l+1|0;j=i}}a[e>>0]=d;d=0}return d|0}function we(b,e,f,g){b=b|0;e=e|0;f=f|0;g=g|0;var h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0;e=re(b,e)|0;do if((e|0)>=0){t=b+4|0;if(!(c[t>>2]|0)){e=b+8|0;h=b+12|0;s=Uj($(c[h>>2]|0,c[e>>2]|0)|0)|0;c[t>>2]=s;if(!s){e=-1;break}else s=e}else{s=b+8|0;h=b+12|0}q=f>>1;r=0-q|0;e=c[h>>2]|0;if((e|0)>0){n=(q|0)<(r|0);o=(q|0)<(r|0);p=0;do{e=c[s>>2]|0;if((e|0)>0){m=0;do{if(n){i=0;f=0}else{i=0;l=r;f=0;while(1){j=l+p|0;if(((j|0)>=0?(j|0)<(c[h>>2]|0):0)?(u=$(e,j)|0,!o):0){k=r;while(1){j=k+m|0;if((j|0)>-1&(j|0)<(e|0)){i=i+1|0;f=(d[(c[b>>2]|0)+(u+j)>>0]|0)+f|0}if((k|0)<(q|0))k=k+1|0;else break}}if((l|0)<(q|0))l=l+1|0;else break}}l=($(e,p)|0)+m|0;a[(c[t>>2]|0)+l>>0]=(f|0)/(i|0)|0;m=m+1|0;e=c[s>>2]|0}while((m|0)<(e|0))}p=p+1|0;e=c[h>>2]|0}while((p|0)<(e|0))}if((g|0)!=0?($(e,c[s>>2]|0)|0)>0:0){e=0;do{b=(c[t>>2]|0)+e|0;a[b>>0]=(d[b>>0]|0)+g;e=e+1|0}while((e|0)<($(c[h>>2]|0,c[s>>2]|0)|0));e=0}else e=0}while(0);return e|0}function xe(a,b,c,d,e,f,g,h,i,j){a=a|0;b=b|0;c=c|0;d=d|0;e=e|0;f=f|0;g=g|0;h=h|0;i=i|0;j=j|0;var k=0;a:do switch(e|0){case 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d=0,e=0,f=0,g=0,h=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0,q=0,r=0;r=i;i=i+64|0;q=r+56|0;p=r+48|0;j=r+40|0;h=r+32|0;g=r+24|0;f=r+16|0;e=r+8|0;d=r;a:do if(!((a+-16|0)>>>0>48|(b|0)<1)){n=Uj(32)|0;if(!n){Me(3,5472,d);rb(1)}c[n>>2]=0;c[n+4>>2]=b;c[n+28>>2]=a;m=Uj(b<<2)|0;c[n+8>>2]=m;if(!m){Me(3,5472,e);rb(1)}d=b<<4;l=Uj(d)|0;c[n+12>>2]=l;if(!l){Me(3,5472,f);rb(1)}f=Uj(d)|0;k=n+20|0;c[k>>2]=f;if(!f){Me(3,5472,g);rb(1)}d=b<<5;g=Uj(d)|0;c[n+16>>2]=g;if(!g){Me(3,5472,h);rb(1)}h=Uj(d)|0;c[n+24>>2]=h;if(!h){Me(3,5472,j);rb(1)}e=$(a,a)|0;d=e*12|0;e=e<<2;if((b|0)>0){a=0;b:while(1){c[m+(a<<2)>>2]=0;f=a<<2;h=0;while(1){if((h|0)>=4)break;j=Uj(d)|0;g=h+f|0;c[l+(g<<2)>>2]=j;if(!j){d=18;break b}j=Uj(e)|0;c[(c[k>>2]|0)+(g<<2)>>2]=j;if(!j){d=20;break b}else h=h+1|0}a=a+1|0;if((a|0)>=(b|0)){o=n;break a}}if((d|0)==18){Me(3,5472,p);rb(1)}else if((d|0)==20){Me(3,5472,q);rb(1)}}else o=n}else o=0;while(0);i=r;return o|0}function Ce(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,i=0;if(!a)b=-1;else{b=a+4|0;d=a+8|0;e=a+12|0;f=a+20|0;if((c[b>>2]|0)>0){g=0;do{if(c[(c[d>>2]|0)+(g<<2)>>2]|0)Le(a,g)|0;h=g<<2;Vj(c[(c[e>>2]|0)+(h<<2)>>2]|0);Vj(c[(c[f>>2]|0)+(h<<2)>>2]|0);i=1+h|0;Vj(c[(c[e>>2]|0)+(i<<2)>>2]|0);Vj(c[(c[f>>2]|0)+(i<<2)>>2]|0);i=2+h|0;Vj(c[(c[e>>2]|0)+(i<<2)>>2]|0);Vj(c[(c[f>>2]|0)+(i<<2)>>2]|0);h=3+h|0;Vj(c[(c[e>>2]|0)+(h<<2)>>2]|0);Vj(c[(c[f>>2]|0)+(h<<2)>>2]|0);g=g+1|0}while((g|0)<(c[b>>2]|0))}Vj(a);b=0}return b|0}function De(b,e,f,g,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x){b=b|0;e=e|0;f=f|0;g=g|0;j=j|0;k=k|0;l=l|0;m=m|0;n=n|0;o=+o;p=p|0;q=q|0;r=r|0;s=s|0;t=t|0;u=u|0;v=v|0;w=w|0;x=x|0;var y=0,z=0,A=0,B=0,C=0,D=0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0;L=i;i=i+12448|0;A=L+12440|0;z=L+8|0;J=L;I=L+12312|0;K=L+24|0;do if((f+-2|0)>>>0<3){if((v|0)!=2830){y=v&255;if((Ee(e,2,y,y*3|0,g,j,k,l,m,n,o,K)|0)<0){c[s>>2]=-1;y=-6;break}y=Fe(K,y,s,t,u,v,w)|0;if(!x)break;c[x>>2]=0;c[x+4>>2]=0;break}if((Ee(e,2,14,42,g,j,k,l,m,n,.875,K)|0)<0){c[s>>2]=-1;y=-6;break}c[z>>2]=0;c[z+4>>2]=182;c[z+8>>2]=195;c[z+12>>2]=13;v=a[K+(c[z>>2]|0)>>0]|0;y=(v&255)>0?v:0;v=(v&255)<255?v:-1;H=a[K+(c[z+4>>2]|0)>>0]|0;y=(H&255)>(y&255)?H:y;v=(H&255)<(v&255)?H:v;H=a[K+(c[z+8>>2]|0)>>0]|0;y=(H&255)>(y&255)?H:y;v=(H&255)<(v&255)?H:v;H=a[K+(c[z+12>>2]|0)>>0]|0;y=((H&255)>(y&255)?H:y)&255;v=((H&255)<(v&255)?H:v)&255;a:do if((y-v|0)>=30){H=(y+v|0)>>>1;a[A>>0]=(d[K+(c[z>>2]|0)>>0]|0)>>>0<H>>>0&1;a[A+1>>0]=(d[K+(c[z+4>>2]|0)>>0]|0)>>>0<H>>>0&1;a[A+2>>0]=(d[K+(c[z+8>>2]|0)>>0]|0)>>>0<H>>>0&1;a[A+3>>0]=(d[K+(c[z+12>>2]|0)>>0]|0)>>>0<H>>>0&1;v=0;while(1){y=v+1|0;if(((a[A+v>>0]|0)==1?(a[A+((y|0)%4|0)>>0]|0)==1:0)?(a[A+((v+2|0)%4|0)>>0]|0)==0:0){G=v;break}if((y|0)<4)v=y;else{G=y;break}}switch(G|0){case 4:{c[t>>2]=0;h[u>>3]=-1.0;y=-3;v=0;z=0;break 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function _j(a){a=a|0;var b=0,d=0,e=0,f=0,g=0,h=0,j=0,k=0;k=i;i=i+16|0;b=k+8|0;h=k+4|0;d=k;c[h>>2]=a;do if(a>>>0>=212){g=(a>>>0)/210|0;e=g*210|0;c[d>>2]=a-e;b=($j(3712,3904,d,b)|0)-3712>>2;f=b;b=(c[3712+(b<<2)>>2]|0)+e|0;a:while(1){e=5;while(1){if(e>>>0>=47){e=211;j=8;break}d=c[3520+(e<<2)>>2]|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=106;break a}if((b|0)==($(a,d)|0))break;else e=e+1|0}b:do if((j|0)==8)while(1){j=0;d=(b>>>0)/(e>>>0)|0;if(d>>>0<e>>>0){j=105;break a}if((b|0)==($(d,e)|0))break b;d=e+10|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+12|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+16|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+18|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+22|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+28|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+30|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+36|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+40|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+42|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+46|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+52|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+58|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+60|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+66|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+70|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+72|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+78|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+82|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+88|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+96|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+100|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+102|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+106|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+108|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+112|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+120|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+126|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+130|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+136|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+138|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+142|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+148|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+150|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+156|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+162|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+166|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+168|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+172|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+178|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+180|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+186|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+190|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+192|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+196|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+198|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break b;d=e+208|0;a=(b>>>0)/(d>>>0)|0;if(a>>>0<d>>>0){j=105;break a}if((b|0)==($(a,d)|0))break;else{e=e+210|0;j=8}}while(0);e=f+1|0;b=(e|0)==48;e=b?0:e;b=(b&1)+g|0;f=e;g=b;b=(c[3712+(e<<2)>>2]|0)+(b*210|0)|0}if((j|0)==105){c[h>>2]=b;break}else if((j|0)==106){c[h>>2]=b;break}}else b=c[($j(3520,3712,h,b)|0)>>2]|0;while(0);i=k;return b|0}function $j(a,b,d,e){a=a|0;b=b|0;d=d|0;e=e|0;var f=0;f=c[d>>2]|0;e=a;d=b-a>>2;a:while(1){while(1){if(!d)break a;a=(d|0)/2|0;if((c[e+(a<<2)>>2]|0)>>>0<f>>>0)break;else d=a}e=e+(a+1<<2)|0;d=d+-1-a|0}return e|0}function ak(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0;if(e>>>0>4294967279)oi(b);if(e>>>0<11){a[b>>0]=e<<1;b=b+1|0}else{g=e+16&-16;f=Kh(g)|0;c[b+8>>2]=f;c[b>>2]=g|1;c[b+4>>2]=e;b=f}ik(b|0,d|0,e|0)|0;a[b+e>>0]=0;return}function bk(b){b=b|0;if(a[b>>0]&1)Lh(c[b+8>>2]|0);return}function ck(){}function dk(a,b,c,d){a=a|0;b=b|0;c=c|0;d=d|0;d=b-d-(c>>>0>a>>>0|0)>>>0;return (D=d,a-c>>>0|0)|0}function ek(b,d,e){b=b|0;d=d|0;e=e|0;var f=0,g=0,h=0,i=0;f=b+e|0;if((e|0)>=20){d=d&255;h=b&3;i=d|d<<8|d<<16|d<<24;g=f&~3;if(h){h=b+4-h|0;while((b|0)<(h|0)){a[b>>0]=d;b=b+1|0}}while((b|0)<(g|0)){c[b>>2]=i;b=b+4|0}}while((b|0)<(f|0)){a[b>>0]=d;b=b+1|0}return b-e|0}function fk(a,b,c){a=a|0;b=b|0;c=c|0;if((c|0)<32){D=b<<c|(a&(1<<c)-1<<32-c)>>>32-c;return a<<c}D=a<<c-32;return 0}function gk(a,b,c,d){a=a|0;b=b|0;c=c|0;d=d|0;c=a+c>>>0;return (D=b+d+(c>>>0<a>>>0|0)>>>0,c|0)|0}function hk(a,b,c){a=a|0;b=b|0;c=c|0;if((c|0)<32){D=b>>>c;return a>>>c|(b&(1<<c)-1)<<32-c}D=0;return b>>>c-32|0}function ik(b,d,e){b=b|0;d=d|0;e=e|0;var f=0;if((e|0)>=4096)return Xa(b|0,d|0,e|0)|0;f=b|0;if((b&3)==(d&3)){while(b&3){if(!e)return f|0;a[b>>0]=a[d>>0]|0;b=b+1|0;d=d+1|0;e=e-1|0}while((e|0)>=4){c[b>>2]=c[d>>2];b=b+4|0;d=d+4|0;e=e-4|0}}while((e|0)>0){a[b>>0]=a[d>>0]|0;b=b+1|0;d=d+1|0;e=e-1|0}return f|0}function jk(a,b,c){a=a|0;b=b|0;c=c|0;if((c|0)<32){D=b>>c;return a>>>c|(b&(1<<c)-1)<<32-c}D=(b|0)<0?-1:0;return b>>c-32|0}function kk(b){b=b|0;var c=0;c=a[m+(b&255)>>0]|0;if((c|0)<8)return c|0;c=a[m+(b>>8&255)>>0]|0;if((c|0)<8)return c+8|0;c=a[m+(b>>16&255)>>0]|0;if((c|0)<8)return c+16|0;return (a[m+(b>>>24)>>0]|0)+24|0}function lk(a,b){a=a|0;b=b|0;var c=0,d=0,e=0,f=0;f=a&65535;e=b&65535;c=$(e,f)|0;d=a>>>16;a=(c>>>16)+($(e,d)|0)|0;e=b>>>16;b=$(e,f)|0;return 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(D=c[f+4>>2]|0,c[f>>2]|0)|0}function rk(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0,h=0,i=0,j=0,k=0,l=0,m=0,n=0,o=0,p=0;l=a;j=b;k=j;h=d;n=e;i=n;if(!k){g=(f|0)!=0;if(!i){if(g){c[f>>2]=(l>>>0)%(h>>>0);c[f+4>>2]=0}n=0;f=(l>>>0)/(h>>>0)>>>0;return (D=n,f)|0}else{if(!g){n=0;f=0;return (D=n,f)|0}c[f>>2]=a|0;c[f+4>>2]=b&0;n=0;f=0;return (D=n,f)|0}}g=(i|0)==0;do if(h){if(!g){g=(ba(i|0)|0)-(ba(k|0)|0)|0;if(g>>>0<=31){m=g+1|0;i=31-g|0;b=g-31>>31;h=m;a=l>>>(m>>>0)&b|k<<i;b=k>>>(m>>>0)&b;g=0;i=l<<i;break}if(!f){n=0;f=0;return (D=n,f)|0}c[f>>2]=a|0;c[f+4>>2]=j|b&0;n=0;f=0;return (D=n,f)|0}g=h-1|0;if(g&h){i=(ba(h|0)|0)+33-(ba(k|0)|0)|0;p=64-i|0;m=32-i|0;j=m>>31;o=i-32|0;b=o>>31;h=i;a=m-1>>31&k>>>(o>>>0)|(k<<m|l>>>(i>>>0))&b;b=b&k>>>(i>>>0);g=l<<p&j;i=(k<<p|l>>>(o>>>0))&j|l<<m&i-33>>31;break}if(f){c[f>>2]=g&l;c[f+4>>2]=0}if((h|0)==1){o=j|b&0;p=a|0|0;return (D=o,p)|0}else{p=kk(h|0)|0;o=k>>>(p>>>0)|0;p=k<<32-p|l>>>(p>>>0)|0;return 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;(function() {
	'use strict'

	/**
		The ARController is the main object for doing AR marker detection with JSARToolKit.

		To use an ARController, you need to tell it the dimensions to use for the AR processing canvas and
		pass it an ARCameraParam to define the camera parameters to use when processing images. 
		The ARCameraParam defines the lens distortion and aspect ratio of the camera used. 
		See https://www.artoolworks.com/support/library/Calibrating_your_camera for more information about AR camera parameteters and how to make and use them.

		If you pass an image as the first argument, the ARController uses that as the image to process,
		using the dimensions of the image as AR processing canvas width and height. If the first argument
		to ARController is an image, the second argument is used as the camera param.

		The camera parameters argument can be either an ARCameraParam or an URL to a camera definition file.
		If the camera argument is an URL, it is loaded into a new ARCameraParam, and the ARController dispatches
		a 'load' event and calls the onload method if it is defined.

	 	@exports ARController
	 	@constructor

		@param {number} width The width of the images to process.
		@param {number} height The height of the images to process.
		@param {ARCameraParam | string} camera The ARCameraParam to use for image processing. If this is a string, the ARController treats it as an URL and tries to load it as a ARCameraParam definition file, calling ARController#onload on success. 
	*/
	var ARController = function(width, height, camera) {
		var id;
		var w = width, h = height;

		this.orientation = 'landscape';

		this.listeners = {};

		if (typeof width !== 'number') {
			var image = width;
			camera = height;
			w = image.videoWidth || image.width;
			h = image.videoHeight || image.height;
			this.image = image;
		}

		this.defaultMarkerWidth = 1;
		this.patternMarkers = {};
		this.barcodeMarkers = {};
		this.transform_mat = new Float32Array(16);

		this.canvas = document.createElement('canvas');
		this.canvas.width = w;
		this.canvas.height = h;
		this.ctx = this.canvas.getContext('2d');

		this.videoWidth = w;
		this.videoHeight = h;

		if (typeof camera === 'string') {

			var self = this;
			this.cameraParam = new ARCameraParam(camera, function() {
				self._initialize();
			}, function(err) {
				console.error("ARController: Failed to load ARCameraParam", err);
			});

		} else {

			this.cameraParam = camera;
			this._initialize();

		}
	};

	/**
		Destroys the ARController instance and frees all associated resources.
		After calling dispose, the ARController can't be used any longer. Make a new one if you need one.

		Calling this avoids leaking Emscripten memory, which may be important if you're using multiple ARControllers.
	*/
	ARController.prototype.dispose = function() {
		artoolkit.teardown(this.id);

		for (var t in this) {
			this[t] = null;
		}
	};

	/**
		Detects markers in the given image. The process method dispatches marker detection events during its run.

		The marker detection process proceeds by first dispatching a markerNum event that tells you how many
		markers were found in the image. Next, a getMarker event is dispatched for each found marker square.
		Finally, getMultiMarker is dispatched for every found multimarker, followed by getMultiMarkerSub events
		dispatched for each of the markers in the multimarker.
			
			arController.addEventListener('markerNum', function(ev) {
				console.log("Detected " + ev.data + " markers.")
			});
			arController.addEventListener('getMarker', function(ev) {
				console.log("Detected marker with ids:", ev.data.marker.id, ev.data.marker.idPatt, ev.data.marker.idMatrix);
				console.log("Marker data", ev.data.marker);
				console.log("Marker transform matrix:", [].join.call(ev.data.matrix, ', '));
			});
			arController.addEventListener('getMultiMarker', function(ev) {
				console.log("Detected multimarker with id:", ev.data.multiMarkerId);
			});
			arController.addEventListener('getMultiMarkerSub', function(ev) {
				console.log("Submarker for " + ev.data.multiMarkerId, ev.data.markerIndex, ev.data.marker);
			});
			
			arController.process(image);	


		If no image is given, defaults to this.image.

		If the debugSetup has been called, draws debug markers on the debug canvas.

		@param {ImageElement | VideoElement} image The image to process [optional]. 
	*/
	ARController.prototype.process = function(image) {
		this.detectMarker(image);

		var markerNum = this.getMarkerNum();
		var k,o;
		for (k in this.patternMarkers) {
			o = this.patternMarkers[k]
			o.inPrevious = o.inCurrent;
			o.inCurrent = false;
		}
		for (k in this.barcodeMarkers) {
			o = this.barcodeMarkers[k]
			o.inPrevious = o.inCurrent;
			o.inCurrent = false;
		}

		for (var i=0; i<markerNum; i++) {
			var markerInfo = this.getMarker(i);

			var markerType = artoolkit.UNKNOWN_MARKER;
			var visible = this.trackPatternMarkerId(-1);

			if (markerInfo.idPatt > -1 && (markerInfo.id === markerInfo.idPatt || markerInfo.idMatrix === -1)) {
				visible = this.trackPatternMarkerId(markerInfo.idPatt);
				markerType = artoolkit.PATTERN_MARKER;

				if (markerInfo.dir !== markerInfo.dirPatt) {
					this.setMarkerInfoDir(i, markerInfo.dirPatt);
				}

			} else if (markerInfo.idMatrix > -1) {
				visible = this.trackBarcodeMarkerId(markerInfo.idMatrix);
				markerType = artoolkit.BARCODE_MARKER;

				if (markerInfo.dir !== markerInfo.dirMatrix) {
					this.setMarkerInfoDir(i, markerInfo.dirMatrix);
				}
			}

			if (markerType !== artoolkit.UNKNOWN_MARKER && visible.inPrevious) {
				this.getTransMatSquareCont(i, visible.markerWidth, visible.matrix, visible.matrix);
			} else {
				this.getTransMatSquare(i, visible.markerWidth, visible.matrix);
			}
// this.getTransMatSquare(i, visible.markerWidth, visible.matrix);

			visible.inCurrent = true;
			this.transMatToGLMat(visible.matrix, this.transform_mat);
			this.dispatchEvent({
				name: 'getMarker',
				target: this,
				data: {
					index: i,
					type: markerType,
					marker: markerInfo,
					matrix: this.transform_mat
				}
			});
		}

		var multiMarkerCount = this.getMultiMarkerCount();
		for (var i=0; i<multiMarkerCount; i++) {
			var subMarkerCount = this.getMultiMarkerPatternCount(i);
			var visible = false;

			artoolkit.getTransMatMultiSquareRobust(this.id, i);
			this.transMatToGLMat(this.marker_transform_mat, this.transform_mat);
			for (var j=0; j<subMarkerCount; j++) {
				var multiEachMarkerInfo = this.getMultiEachMarker(i, j);
				if (multiEachMarkerInfo.visible >= 0) {
					visible = true;
					this.dispatchEvent({
						name: 'getMultiMarker',
						target: this,
						data: {
							multiMarkerId: i,
							matrix: this.transform_mat
						}
					});
					break;
				}
			}
			if (visible) {
				for (var j=0; j<subMarkerCount; j++) {
					var multiEachMarkerInfo = this.getMultiEachMarker(i, j);
					this.transMatToGLMat(this.marker_transform_mat, this.transform_mat);
					this.dispatchEvent({
						name: 'getMultiMarkerSub',
						target: this,
						data: {
							multiMarkerId: i,
							markerIndex: j,
							marker: multiEachMarkerInfo,
							matrix: this.transform_mat
						}
					});
				}
			}
		}
		if (this._bwpointer) {
			this.debugDraw();
		}
	};

	/**
		Adds the given pattern marker ID to the index of tracked IDs.
		Sets the markerWidth for the pattern marker to markerWidth.

		Used by process() to implement continuous tracking, 
		keeping track of the marker's transformation matrix
		and customizable marker widths.

		@param {number} id ID of the pattern marker to track.
		@param {number} markerWidth The width of the marker to track.
		@return {Object} The marker tracking object.
	*/
	ARController.prototype.trackPatternMarkerId = function(id, markerWidth) {
		var obj = this.patternMarkers[id];
		if (!obj) {
			this.patternMarkers[id] = obj = {
				inPrevious: false,
				inCurrent: false,
				matrix: new Float32Array(12),
				markerWidth: markerWidth || this.defaultMarkerWidth
			};
		}
		if (markerWidth) {
			obj.markerWidth = markerWidth;
		}
		return obj;
	};

	/**
		Adds the given barcode marker ID to the index of tracked IDs.
		Sets the markerWidth for the pattern marker to markerWidth.

		Used by process() to implement continuous tracking, 
		keeping track of the marker's transformation matrix
		and customizable marker widths.

		@param {number} id ID of the barcode marker to track.
		@param {number} markerWidth The width of the marker to track.
		@return {Object} The marker tracking object.
	*/
	ARController.prototype.trackBarcodeMarkerId = function(id, markerWidth) {
		var obj = this.barcodeMarkers[id];
		if (!obj) {
			this.barcodeMarkers[id] = obj = {
				inPrevious: false,
				inCurrent: false,
				matrix: new Float32Array(12),
				markerWidth: markerWidth || this.defaultMarkerWidth
			};
		}
		if (markerWidth) {
			obj.markerWidth = markerWidth;
		}
		return obj;
	};

	/**
		Returns the number of multimarkers registered on this ARController.

		@return {number} Number of multimarkers registered.
	*/
	ARController.prototype.getMultiMarkerCount = function() {
		return artoolkit.getMultiMarkerCount(this.id);
	};

	/**
		Returns the number of markers in the multimarker registered for the given multiMarkerId.

		@param {number} multiMarkerId The id number of the multimarker to access. Given by loadMultiMarker.
		@return {number} Number of markers in the multimarker. Negative value indicates failure to find the multimarker.
	*/
	ARController.prototype.getMultiMarkerPatternCount = function(multiMarkerId) {
		return artoolkit.getMultiMarkerNum(this.id, multiMarkerId);
	};

	/**
		Add an event listener on this ARController for the named event, calling the callback function
		whenever that event is dispatched.

		Possible events are: 
		  * getMarker - dispatched whenever process() finds a square marker
		  * getMultiMarker - dispatched whenever process() finds a visible registered multimarker
		  * getMultiMarkerSub - dispatched by process() for each marker in a visible multimarker
		  * load - dispatched when the ARController is ready to use (useful if passing in a camera URL in the constructor)

		@param {string} name Name of the event to listen to.
		@param {function} callback Callback function to call when an event with the given name is dispatched.
	*/
	ARController.prototype.addEventListener = function(name, callback) {
       if (!this.listeners[name]) {
			this.listeners[name] = [];
		}
		this.listeners[name].push(callback);
	};

	/**
		Remove an event listener from the named event.

		@param {string} name Name of the event to stop listening to.
		@param {function} callback Callback function to remove from the listeners of the named event.
	*/
	ARController.prototype.removeEventListener = function(name, callback) {
		if (this.listeners[name]) {
			var index = this.listeners[name].indexOf(callback);
			if (index > -1) {
				this.listeners[name].splice(index, 1);
			}
		}
	};

	/**
		Dispatches the given event to all registered listeners on event.name.

		@param {Object} event Event to dispatch.
	*/
	ARController.prototype.dispatchEvent = function(event) {
		var listeners = this.listeners[event.name];
		if (listeners) {
			for (var i=0; i<listeners.length; i++) {
				listeners[i].call(this, event);
			}
		}
	};

	/**
		Sets up a debug canvas for the AR detection. Draws a red marker on top of each detected square in the image.

		The debug canvas is added to document.body.
	*/
	ARController.prototype.debugSetup = function() {
		document.body.appendChild(this.canvas)
		this.setDebugMode(1);
		this._bwpointer = this.getProcessingImage();
	};

	/**
		Loads a pattern marker from the given URL and calls the onSuccess callback with the UID of the marker.

		arController.loadMarker(markerURL, onSuccess, onError);

		@param {string} markerURL - The URL of the marker pattern file to load.
		@param {function} onSuccess - The success callback. Called with the id of the loaded marker on a successful load.
		@param {function} onError - The error callback. Called with the encountered error if the load fails.
	*/
	ARController.prototype.loadMarker = function(markerURL, onSuccess, onError) {
		return artoolkit.addMarker(this.id, markerURL, onSuccess, onError);
	};

	/**
		Loads a multimarker from the given URL and calls the onSuccess callback with the UID of the marker.

		arController.loadMultiMarker(markerURL, onSuccess, onError);

		@param {string} markerURL - The URL of the multimarker pattern file to load.
		@param {function} onSuccess - The success callback. Called with the id and the number of sub-markers of the loaded marker on a successful load.
		@param {function} onError - The error callback. Called with the encountered error if the load fails.
	*/
	ARController.prototype.loadMultiMarker = function(markerURL, onSuccess, onError) {
		return artoolkit.addMultiMarker(this.id, markerURL, onSuccess, onError);
	};
	
	/**
	 * Populates the provided float array with the current transformation for the specified marker. After 
	 * a call to detectMarker, all marker information will be current. Marker transformations can then be 
	 * checked.
	 * @param {number} markerUID	The unique identifier (UID) of the marker to query
	 * @param {number} markerWidth	The width of the marker
	 * @param {Float64Array} dst	The float array to populate with the 3x4 marker transformation matrix
	 * @return	{Float64Array} The dst array.
	 */
	ARController.prototype.getTransMatSquare = function(markerIndex, markerWidth, dst) {
		artoolkit.getTransMatSquare(this.id, markerIndex, markerWidth);
		dst.set(this.marker_transform_mat);
		return dst;
	};

	/**
	 * Populates the provided float array with the current transformation for the specified marker, using 
	 * previousMarkerTransform as the previously detected transformation. After 
	 * a call to detectMarker, all marker information will be current. Marker transformations can then be 
	 * checked.
	 * @param {number} markerUID	The unique identifier (UID) of the marker to query
	 * @param {number} markerWidth	The width of the marker
	 * @param {Float64Array} previousMarkerTransform	The float array to use as the previous 3x4 marker transformation matrix
	 * @param {Float64Array} dst	The float array to populate with the 3x4 marker transformation matrix
	 * @return	{Float64Array} The dst array.
	 */
	ARController.prototype.getTransMatSquareCont = function(markerIndex, markerWidth, previousMarkerTransform, dst) {
		this.marker_transform_mat.set(previousMarkerTransform)
		artoolkit.getTransMatSquareCont(this.id, markerIndex, markerWidth);
		dst.set(this.marker_transform_mat);
		return dst;
	};

	/**
	 * Populates the provided float array with the current transformation for the specified multimarker. After 
	 * a call to detectMarker, all marker information will be current. Marker transformations can then be 
	 * checked.
	 *
	 * @param {number} markerUID	The unique identifier (UID) of the marker to query
	 * @param {number} markerWidth	The width of the marker
	 * @param {Float64Array} dst	The float array to populate with the 3x4 marker transformation matrix
	 * @return	{Float64Array} The dst array.
	 */
	ARController.prototype.getTransMatMultiSquare = function(multiMarkerId, dst) {
		artoolkit.getTransMatMultiSquare(this.id, multiMarkerId);
		dst.set(this.marker_transform_mat);
		return dst;
	};

	/**
	 * Populates the provided float array with the current robust transformation for the specified multimarker. After 
	 * a call to detectMarker, all marker information will be current. Marker transformations can then be 
	 * checked.
	 * @param {number} markerUID	The unique identifier (UID) of the marker to query
	 * @param {number} markerWidth	The width of the marker
	 * @param {Float64Array} dst	The float array to populate with the 3x4 marker transformation matrix
	 * @return	{Float64Array} The dst array.
	 */
	ARController.prototype.getTransMatMultiSquareRobust = function(multiMarkerId, dst) {
		artoolkit.getTransMatMultiSquare(this.id, multiMarkerId);
		dst.set(this.marker_transform_mat);
		return dst;
	};

	/**
		Converts the given 3x4 marker transformation matrix in the 12-element transMat array
		into a 4x4 WebGL matrix and writes the result into the 16-element glMat array.

		If scale parameter is given, scales the transform of the glMat by the scale parameter.

		@param {Float64Array} transMat The 3x4 marker transformation matrix.
		@param {Float64Array} glMat The 4x4 GL transformation matrix.
		@param {number} scale The scale for the transform.
	*/ 
	ARController.prototype.transMatToGLMat = function(transMat, glMat, scale) {
		glMat[0 + 0*4] = transMat[0]; // R1C1
		glMat[0 + 1*4] = transMat[1]; // R1C2
		glMat[0 + 2*4] = transMat[2];
		glMat[0 + 3*4] = transMat[3];
		glMat[1 + 0*4] = transMat[4]; // R2
		glMat[1 + 1*4] = transMat[5];
		glMat[1 + 2*4] = transMat[6];
		glMat[1 + 3*4] = transMat[7];
		glMat[2 + 0*4] = transMat[8]; // R3
		glMat[2 + 1*4] = transMat[9];
		glMat[2 + 2*4] = transMat[10];
		glMat[2 + 3*4] = transMat[11];
		glMat[3 + 0*4] = 0.0;
		glMat[3 + 1*4] = 0.0;
		glMat[3 + 2*4] = 0.0;
		glMat[3 + 3*4] = 1.0;
		if (scale != undefined && scale !== 0.0) {
			glMat[12] *= scale;
			glMat[13] *= scale;
			glMat[14] *= scale;
		}
		return glMat;
	};

	/**
		This is the core ARToolKit marker detection function. It calls through to a set of
		internal functions to perform the key marker detection steps of binarization and
		labelling, contour extraction, and template matching and/or matrix code extraction.
        
        Typically, the resulting set of detected markers is retrieved by calling arGetMarkerNum
        to get the number of markers detected and arGetMarker to get an array of ARMarkerInfo
        structures with information on each detected marker, followed by a step in which
        detected markers are possibly examined for some measure of goodness of match (e.g. by
        examining the match confidence value) and pose extraction.

		@param {image} Image to be processed to detect markers.
		@return {number}     0 if the function proceeded without error, or a value less than 0 in case of error.
			A result of 0 does not however, imply any markers were detected.
	*/
	ARController.prototype.detectMarker = function(image) {
		if (this._copyImageToHeap(image)) {
			return artoolkit.detectMarker(this.id);
		}
		return -99;
	};

	/**
		Get the number of markers detected in a video frame.
  
	    @return {number}     The number of detected markers in the most recent image passed to arDetectMarker.
    	    Note that this is actually a count, not an index. A better name for this function would be
        	arGetDetectedMarkerCount, but the current name lives on for historical reasons.
    */
	ARController.prototype.getMarkerNum = function() {
		return artoolkit.getMarkerNum(this.id);
	};

	/**
		Get the marker info struct for the given marker index in detected markers.

		Call this.detectMarker first, then use this.getMarkerNum to get the detected marker count.

		The returned object is the global artoolkit.markerInfo object and will be overwritten
		by subsequent calls. If you need to hang on to it, create a copy using this.cloneMarkerInfo();

		Returns undefined if no marker was found.

		A markerIndex of -1 is used to access the global custom marker.

		The fields of the markerInfo struct are:
		    @field      area Area in pixels of the largest connected region, comprising the marker border and regions connected to it. Note that this is
		        not the same as the actual onscreen area inside the marker border.
			@field      id If pattern detection mode is either pattern mode OR matrix but not both, will be marker ID (>= 0) if marker is valid, or -1 if invalid.
			@field      idPatt If pattern detection mode includes a pattern mode, will be marker ID (>= 0) if marker is valid, or -1 if invalid.
		    @field      idMatrix If pattern detection mode includes a matrix mode, will be marker ID (>= 0) if marker is valid, or -1 if invalid.
			@field      dir If pattern detection mode is either pattern mode OR matrix but not both, and id != -1, will be marker direction (range 0 to 3, inclusive).
			@field      dirPatt If pattern detection mode includes a pattern mode, and id != -1, will be marker direction (range 0 to 3, inclusive).
			@field      dirMatrix If pattern detection mode includes a matrix mode, and id != -1, will be marker direction (range 0 to 3, inclusive).
			@field      cf If pattern detection mode is either pattern mode OR matrix but not both, will be marker matching confidence (range 0.0 to 1.0 inclusive) if marker is valid, or -1.0 if marker is invalid.
			@field      cfPatt If pattern detection mode includes a pattern mode, will be marker matching confidence (range 0.0 to 1.0 inclusive) if marker is valid, or -1.0 if marker is invalid.
			@field      cfMatrix If pattern detection mode includes a matrix mode, will be marker matching confidence (range 0.0 to 1.0 inclusive) if marker is valid, or -1.0 if marker is invalid.
			@field      pos 2D position (in camera image coordinates, origin at top-left) of the centre of the marker.
			@field      line Line equations for the 4 sides of the marker.
			@field      vertex 2D positions (in camera image coordinates, origin at top-left) of the corners of the marker. vertex[(4 - dir)%4][] is the top-left corner of the marker. Other vertices proceed clockwise from this. These are idealised coordinates (i.e. the onscreen position aligns correctly with the undistorted camera image.)


		@param {number} markerIndex The index of the marker to query.
		@returns {Object} The markerInfo struct.
	*/
	ARController.prototype.getMarker = function(markerIndex) {
		if (0 === artoolkit.getMarker(this.id, markerIndex)) {
			return artoolkit.markerInfo;
		}
	};

	/**
		Set marker vertices to the given vertexData[4][2] array.

		Sets the marker pos to the center of the vertices.

		Useful for building custom markers for getTransMatSquare.

		A markerIndex of -1 is used to access the global custom marker.

		@param {number} markerIndex The index of the marker to edit.
	*/
	ARController.prototype.setMarkerInfoVertex = function(markerIndex, vertexData) {
		for (var i=0; i<vertexData.length; i++) {
			this.marker_transform_mat[i*2+0] = vertexData[i][0];
			this.marker_transform_mat[i*2+1] = vertexData[i][1];
		}
		return artoolkit.setMarkerInfoVertex(this.id, markerIndex);
	};

	/**
		Makes a deep copy of the given marker info.

		@param {Object} markerInfo The marker info object to copy.
		@return {Object} The new copy of the marker info.
	*/
	ARController.prototype.cloneMarkerInfo = function(markerInfo) {
		return JSON.parse(JSON.stringify(markerInfo));
	};

	/**
		Get the marker info struct for the given marker index in detected markers.

		Call this.detectMarker first, then use this.getMarkerNum to get the detected marker count.

		The returned object is the global artoolkit.markerInfo object and will be overwritten
		by subsequent calls. If you need to hang on to it, create a copy using this.cloneMarkerInfo();

		Returns undefined if no marker was found.

		@field {number} pattId The index of the marker.
		@field {number} pattType The type of the marker. Either AR_MULTI_PATTERN_TYPE_TEMPLATE or AR_MULTI_PATTERN_TYPE_MATRIX.
		@field {number} visible 0 or larger if the marker is visible
		@field {number} width The width of the marker.

		@param {number} multiMarkerId The multimarker to query.
		@param {number} markerIndex The index of the marker to query.
		@returns {Object} The markerInfo struct.
	*/
	ARController.prototype.getMultiEachMarker = function(multiMarkerId, markerIndex) {
		if (0 === artoolkit.getMultiEachMarker(this.id, multiMarkerId, markerIndex)) {
			return artoolkit.multiEachMarkerInfo;
		}
	};


	/**
		Returns the 16-element WebGL transformation matrix used by ARController.process to 
		pass marker WebGL matrices to event listeners.

		Unique to each ARController.

		@return {Float64Array} The 16-element WebGL transformation matrix used by the ARController.
	*/
	ARController.prototype.getTransformationMatrix = function() {
		return this.transform_mat;
	};

	/**
	 * Returns the projection matrix computed from camera parameters for the ARController.
	 *
	 * @return {Float64Array} The 16-element WebGL camera matrix for the ARController camera parameters.
	 */
	ARController.prototype.getCameraMatrix = function() {
		return this.camera_mat;
	};

	/**
		Returns the shared ARToolKit 3x4 marker transformation matrix, used for passing and receiving
		marker transforms to/from the Emscripten side.

		@return {Float64Array} The 12-element 3x4 row-major marker transformation matrix used by ARToolKit.
	*/
	ARController.prototype.getMarkerTransformationMatrix = function() {
		return this.marker_transform_mat;
	};


	/* Setter / Getter Proxies */

	/**
	 * Enables or disables debug mode in the tracker. When enabled, a black and white debug
	 * image is generated during marker detection. The debug image is useful for visualising
	 * the binarization process and choosing a threshold value.
	 * @param {number} debug		true to enable debug mode, false to disable debug mode
	 * @see				getDebugMode()
	 */
	ARController.prototype.setDebugMode = function(mode) {
		return artoolkit.setDebugMode(this.id, mode);
	};

	/**
	 * Returns whether debug mode is currently enabled.
	 * @return			true when debug mode is enabled, false when debug mode is disabled
	 * @see				setDebugMode()
	 */
	ARController.prototype.getDebugMode = function() {
		return artoolkit.getDebugMode(this.id);
	};

	/**
		Returns the Emscripten HEAP offset to the debug processing image used by ARToolKit.

		@return {number} HEAP offset to the debug processing image.
	*/
	ARController.prototype.getProcessingImage = function() {
		return artoolkit.getProcessingImage(this.id);
	}

	/**
		Sets the logging level to use by ARToolKit.

		@param 
	*/
	ARController.prototype.setLogLevel = function(mode) {
		return artoolkit.setLogLevel(mode);
	};

	ARController.prototype.getLogLevel = function() {
		return artoolkit.getLogLevel();
	};

	ARController.prototype.setMarkerInfoDir = function(markerIndex, dir) {
		return artoolkit.setMarkerInfoDir(this.id, markerIndex, dir);
	};

	ARController.prototype.setProjectionNearPlane = function(value) {
		return artoolkit.setProjectionNearPlane(this.id, value);
	};

	ARController.prototype.getProjectionNearPlane = function() {
		return artoolkit.getProjectionNearPlane(this.id);
	};

	ARController.prototype.setProjectionFarPlane = function(value) {
		return artoolkit.setProjectionFarPlane(this.id, value);
	};

	ARController.prototype.getProjectionFarPlane = function() {
		return artoolkit.getProjectionFarPlane(this.id);
	};


	/**
	    Set the labeling threshold mode (auto/manual).

	    @param {number}		mode An integer specifying the mode. One of:
	        AR_LABELING_THRESH_MODE_MANUAL,
	        AR_LABELING_THRESH_MODE_AUTO_MEDIAN,
	        AR_LABELING_THRESH_MODE_AUTO_OTSU,
	        AR_LABELING_THRESH_MODE_AUTO_ADAPTIVE,
	        AR_LABELING_THRESH_MODE_AUTO_BRACKETING
	 */
 	ARController.prototype.setThresholdMode = function(mode) {
		return artoolkit.setThresholdMode(this.id, mode);
	};

	/**
	 * Gets the current threshold mode used for image binarization.
	 * @return	{number}		The current threshold mode
	 * @see				getVideoThresholdMode()
	 */
	ARController.prototype.getThresholdMode = function() {
		return artoolkit.getThresholdMode(this.id);
	};

	/**
    	Set the labeling threshhold.

        This function forces sets the threshold value.
        The default value is AR_DEFAULT_LABELING_THRESH which is 100.
        
        The current threshold mode is not affected by this call.
        Typically, this function is used when labeling threshold mode
        is AR_LABELING_THRESH_MODE_MANUAL.
 
        The threshold value is not relevant if threshold mode is
        AR_LABELING_THRESH_MODE_AUTO_ADAPTIVE.
 
        Background: The labeling threshold is the value which
		the AR library uses to differentiate between black and white
		portions of an ARToolKit marker. Since the actual brightness,
		contrast, and gamma of incoming images can vary signficantly
		between different cameras and lighting conditions, this
		value typically needs to be adjusted dynamically to a
		suitable midpoint between the observed values for black
		and white portions of the markers in the image.

		@param {number}     thresh An integer in the range [0,255] (inclusive).
	*/
	ARController.prototype.setThreshold = function(threshold) {
		return artoolkit.setThreshold(this.id, threshold);
	};

	/**
	    Get the current labeling threshold.

		This function queries the current labeling threshold. For,
		AR_LABELING_THRESH_MODE_AUTO_MEDIAN, AR_LABELING_THRESH_MODE_AUTO_OTSU,
		and AR_LABELING_THRESH_MODE_AUTO_BRACKETING
		the threshold value is only valid until the next auto-update.

		The current threshold mode is not affected by this call.

		The threshold value is not relevant if threshold mode is
		AR_LABELING_THRESH_MODE_AUTO_ADAPTIVE.

	    @return {number} The current threshold value.
	*/
	ARController.prototype.getThreshold = function() {
		return artoolkit.getThreshold(this.id);
	};


	/**
		Set the pattern detection mode

		The pattern detection determines the method by which ARToolKit
		matches detected squares in the video image to marker templates
		and/or IDs. ARToolKit v4.x can match against pictorial "template" markers,
		whose pattern files are created with the mk_patt utility, in either colour
		or mono, and additionally can match against 2D-barcode-type "matrix"
		markers, which have an embedded marker ID. Two different two-pass modes
		are also available, in which a matrix-detection pass is made first,
		followed by a template-matching pass.

		@param {number} mode
			Options for this field are:
			AR_TEMPLATE_MATCHING_COLOR
			AR_TEMPLATE_MATCHING_MONO
			AR_MATRIX_CODE_DETECTION
			AR_TEMPLATE_MATCHING_COLOR_AND_MATRIX
			AR_TEMPLATE_MATCHING_MONO_AND_MATRIX
			The default mode is AR_TEMPLATE_MATCHING_COLOR.
	*/
	ARController.prototype.setPatternDetectionMode = function(value) {
		return artoolkit.setPatternDetectionMode(this.id, value);
	};

	/**
		Returns the current pattern detection mode.

		@return {number} The current pattern detection mode.
	*/
	ARController.prototype.getPatternDetectionMode = function() {
		return artoolkit.getPatternDetectionMode(this.id);
	};

	/**
		Set the size and ECC algorithm to be used for matrix code (2D barcode) marker detection.

		When matrix-code (2D barcode) marker detection is enabled (see arSetPatternDetectionMode)
		then the size of the barcode pattern and the type of error checking and correction (ECC)
		with which the markers were produced can be set via this function.

		This setting is global to a given ARHandle; It is not possible to have two different matrix
		code types in use at once.

	    @param      type The type of matrix code (2D barcode) in use. Options include:
	        AR_MATRIX_CODE_3x3
	        AR_MATRIX_CODE_3x3_HAMMING63
	        AR_MATRIX_CODE_3x3_PARITY65
	        AR_MATRIX_CODE_4x4
	        AR_MATRIX_CODE_4x4_BCH_13_9_3
	        AR_MATRIX_CODE_4x4_BCH_13_5_5
	        The default mode is AR_MATRIX_CODE_3x3.
	*/
	ARController.prototype.setMatrixCodeType = function(value) {
		return artoolkit.setMatrixCodeType(this.id, value);
	};

	/**
		Returns the current matrix code (2D barcode) marker detection type.

		@return {number} The current matrix code type.
	*/
	ARController.prototype.getMatrixCodeType = function() {
		return artoolkit.getMatrixCodeType(this.id);
	};

	/**
		Select between detection of black markers and white markers.
	
		ARToolKit's labelling algorithm can work with both black-bordered
		markers on a white background (AR_LABELING_BLACK_REGION) or
		white-bordered markers on a black background (AR_LABELING_WHITE_REGION).
		This function allows you to specify the type of markers to look for.
		Note that this does not affect the pattern-detection algorith
		which works on the interior of the marker.

		@param {number}      mode
			Options for this field are:
			AR_LABELING_WHITE_REGION
			AR_LABELING_BLACK_REGION
			The default mode is AR_LABELING_BLACK_REGION.
	*/
	ARController.prototype.setLabelingMode = function(value) {
		return artoolkit.setLabelingMode(this.id, value);
	};

	/**
		Enquire whether detection is looking for black markers or white markers.
	    
	    See discussion for setLabelingMode.

	    @result {number} The current labeling mode.
	*/
	ARController.prototype.getLabelingMode = function() {
		return artoolkit.getLabelingMode(this.id);
	};

	/**
		Set the width/height of the marker pattern space, as a proportion of marker width/height.

	    @param {number}		pattRatio The the width/height of the marker pattern space, as a proportion of marker
	        width/height. To set the default, pass AR_PATT_RATIO.
	        If compatibility with ARToolKit verions 1.0 through 4.4 is required, this value
	        must be 0.5.
	 */
 	ARController.prototype.setPattRatio = function(value) {
		return artoolkit.setPattRatio(this.id, value);
	};

	/**
		Returns the current ratio of the marker pattern to the total marker size.

		@return {number} The current pattern ratio.
	*/
	ARController.prototype.getPattRatio = function() {
		return artoolkit.getPattRatio(this.id);
	};

	/**
	    Set the image processing mode.

        When the image processing mode is AR_IMAGE_PROC_FRAME_IMAGE,
        ARToolKit processes all pixels in each incoming image
        to locate markers. When the mode is AR_IMAGE_PROC_FIELD_IMAGE,
        ARToolKit processes pixels in only every second pixel row and
        column. This is useful both for handling images from interlaced
        video sources (where alternate lines are assembled from alternate
        fields and thus have one field time-difference, resulting in a
        "comb" effect) such as Digital Video cameras.
        The effective reduction by 75% in the pixels processed also
        has utility in accelerating tracking by effectively reducing
        the image size to one quarter size, at the cost of pose accuraccy.

	    @param {number} mode
			Options for this field are:
			AR_IMAGE_PROC_FRAME_IMAGE
			AR_IMAGE_PROC_FIELD_IMAGE
			The default mode is AR_IMAGE_PROC_FRAME_IMAGE.
	*/
	ARController.prototype.setImageProcMode = function(value) {
		return artoolkit.setImageProcMode(this.id, value);
	};

	/**
	    Get the image processing mode.

		See arSetImageProcMode() for a complete description.

	    @return {number} The current image processing mode.
	*/
	ARController.prototype.getImageProcMode = function() {
		return artoolkit.getImageProcMode(this.id);
	};


	/**
		Draw the black and white image and debug markers to the ARController canvas.

		See setDebugMode.
	*/
	ARController.prototype.debugDraw = function() {
		var debugBuffer = new Uint8ClampedArray(Module.HEAPU8.buffer, this._bwpointer, this.framesize);
		var id = new ImageData(debugBuffer, this.canvas.width, this.canvas.height)
		this.ctx.putImageData(id, 0, 0)

		var marker_num = this.getMarkerNum();
		for (var i=0; i<marker_num; i++) {
			this._debugMarker(this.getMarker(i));
		}
	};


	// private

	ARController.prototype._initialize = function() {
		this.id = artoolkit.setup(this.canvas.width, this.canvas.height, this.cameraParam.id);

		var params = artoolkit.frameMalloc;
		this.framepointer = params.framepointer;
		this.framesize = params.framesize;

		this.dataHeap = new Uint8Array(Module.HEAPU8.buffer, this.framepointer, this.framesize);

		this.camera_mat = new Float64Array(Module.HEAPU8.buffer, params.camera, 16);
		this.marker_transform_mat = new Float64Array(Module.HEAPU8.buffer, params.transform, 12);

		this.setProjectionNearPlane(0.1)
		this.setProjectionFarPlane(1000);

		var self = this;
		setTimeout(function() {
			if (self.onload) {
				self.onload();
			}
			self.dispatchEvent({
				name: 'load',
				target: self
			});
		}, 1);
	};

	ARController.prototype._copyImageToHeap = function(image) {
		if (!image) {
			image = this.image;
		}


		if (this.orientation === 'portrait') {
			this.ctx.save();
			this.ctx.translate(this.canvas.width, 0);
			this.ctx.rotate(Math.PI/2);
			this.ctx.drawImage(image, 0, 0, this.canvas.height, this.canvas.width); // draw video
			this.ctx.restore();
		} else {
			this.ctx.drawImage(image, 0, 0, this.canvas.width, this.canvas.height); // draw video
		}

		var imageData = this.ctx.getImageData(0, 0, this.canvas.width, this.canvas.height);
		var data = imageData.data;

		if (this.dataHeap) {
			this.dataHeap.set( data );
			return true;
		}
		return false;
	};

	ARController.prototype._debugMarker = function(marker) {
		var vertex, pos;
		vertex = marker.vertex;
		var ctx = this.ctx;
		ctx.strokeStyle = 'red';

		ctx.beginPath()
		ctx.moveTo(vertex[0][0], vertex[0][1])
		ctx.lineTo(vertex[1][0], vertex[1][1])
		ctx.stroke();

		ctx.beginPath()
		ctx.moveTo(vertex[2][0], vertex[2][1])
		ctx.lineTo(vertex[3][0], vertex[3][1])
		ctx.stroke()

		ctx.strokeStyle = 'green';
		ctx.beginPath()
		ctx.lineTo(vertex[1][0], vertex[1][1])
		ctx.lineTo(vertex[2][0], vertex[2][1])
		ctx.stroke();

		ctx.beginPath()
		ctx.moveTo(vertex[3][0], vertex[3][1])
		ctx.lineTo(vertex[0][0], vertex[0][1])
		ctx.stroke();

		pos = marker.pos
		ctx.beginPath()
		ctx.arc(pos[0], pos[1], 8, 0, Math.PI * 2)
		ctx.fillStyle = 'red'
		ctx.fill()
	};


	// static

	/**
		ARController.getUserMedia gets a device camera video feed and calls the given onSuccess callback with it.

		Tries to start playing the video. Playing the video can fail on Chrome for Android,
		so ARController.getUserMedia adds user input event listeners to the window
		that try to start playing the video. On success, the event listeners are removed.

		To use ARController.getUserMedia, call it with an object with the onSuccess attribute set to a callback function.

			ARController.getUserMedia({
				onSuccess: function(video) {
					console.log("Got video", video);
				}
			});

		The configuration object supports the following attributes:

			{
				onSuccess : function(video),
				onError : function(error),

				width : number | {min: number, ideal: number, max: number},
				height : number | {min: number, ideal: number, max: number},

				facingMode : 'environment' | 'user' | 'left' | 'right' | { exact: 'environment' | ... }
			}

		See https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia for more information about the
		width, height and facingMode attributes.

		@param {object} configuration The configuration object.
		@return {VideoElement} Returns the created video element.
	*/
	ARController.getUserMedia = function(configuration) {
		var facing = configuration.facingMode || 'environment';

		var onSuccess = configuration.onSuccess;
		var onError = configuration.onError || function(err) { console.error("ARController.getUserMedia", err); };

		var video = document.createElement('video');

		var initProgress = function() {
			if (this.videoWidth !== 0) {
				onSuccess(video);
			}
		};

		var readyToPlay = false;
		var eventNames = [
			'touchstart', 'touchend', 'touchmove', 'touchcancel',
			'click', 'mousedown', 'mouseup', 'mousemove',
			'keydown', 'keyup', 'keypress', 'scroll'
		];
		var play = function(ev) {
			if (readyToPlay) {
				video.play();
				if (!video.paused) {
					eventNames.forEach(function(eventName) {
						window.removeEventListener(eventName, play, true);
					});
				}
			}
		};
		eventNames.forEach(function(eventName) {
			window.addEventListener(eventName, play, true);
		});

		var success = function(stream) {
			video.addEventListener('loadedmetadata', initProgress, false);
			video.src = window.URL.createObjectURL(stream);
			readyToPlay = true;
			play(); // Try playing without user input, should work on non-Android Chrome
		};

		var constraints = {};
		var mediaDevicesConstraints = {};
		if (configuration.width) {
			mediaDevicesConstraints.width = configuration.width;
			if (typeof configuration.width === 'object') {
				if (configuration.width.max) {
					constraints.maxWidth = configuration.width.max;
				}
				if (configuration.width.min) {
					constraints.minWidth = configuration.width.max;
				}
			} else {
				constraints.maxWidth = configuration.width;
			}
		}

		if (configuration.height) {
			mediaDevicesConstraints.height = configuration.height;
			if (typeof configuration.height === 'object') {
				if (configuration.height.max) {
					constraints.maxHeight = configuration.height.max;
				}
				if (configuration.height.min) {
					constraints.minHeight = configuration.height.max;
				}
			} else {
				constraints.maxHeight = configuration.height;
			}
		}

		mediaDevicesConstraints.facingMode = facing;

		navigator.getUserMedia  = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;
		var hdConstraints = {
			audio: false,
			video: {
				mandatory: constraints
		  	}
		};

		if ( false ) {
		// if ( navigator.mediaDevices || window.MediaStreamTrack) {
			if (navigator.mediaDevices) {
				navigator.mediaDevices.getUserMedia({
					audio: false,
					video: mediaDevicesConstraints
				}).then(success, onError); 
			} else {
				MediaStreamTrack.getSources(function(sources) {
					var facingDir = mediaDevicesConstraints.facingMode;
					if (facing && facing.exact) {
						facingDir = facing.exact;
					}
					for (var i=0; i<sources.length; i++) {
						if (sources[i].kind === 'video' && sources[i].facing === facingDir) {
							hdConstraints.video.mandatory.sourceId = sources[i].id;
							break;
						}
					}
					if (facing && facing.exact && !hdConstraints.video.mandatory.sourceId) {
						onError('Failed to get camera facing the wanted direction');
					} else {
						if (navigator.getUserMedia) {
							navigator.getUserMedia(hdConstraints, success, onError);
						} else {
							onError('navigator.getUserMedia is not supported on your browser');
						}
					}
				});
			}
		} else {
			if (navigator.getUserMedia) {
				navigator.getUserMedia(hdConstraints, success, onError);
			} else {
				onError('navigator.getUserMedia is not supported on your browser');
			}
		}

		return video;
	};

	/**
		ARController.getUserMediaARController gets an ARController for the device camera video feed and calls the 
		given onSuccess callback with it.

		To use ARController.getUserMediaARController, call it with an object with the cameraParam attribute set to
		a camera parameter file URL, and the onSuccess attribute set to a callback function.

			ARController.getUserMediaARController({
				cameraParam: 'Data/camera_para.dat',
				onSuccess: function(arController, arCameraParam) {
					console.log("Got ARController", arController);
					console.log("Got ARCameraParam", arCameraParam);
					console.log("Got video", arController.image);
				}
			});

		The configuration object supports the following attributes:

			{
				onSuccess : function(ARController, ARCameraParam),
				onError : function(error),

				cameraParam: url, // URL to camera parameters definition file.
				maxARVideoSize: number, // Maximum max(width, height) for the AR processing canvas.

				width : number | {min: number, ideal: number, max: number},
				height : number | {min: number, ideal: number, max: number},

				facingMode : 'environment' | 'user' | 'left' | 'right' | { exact: 'environment' | ... }
			}

		See https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia for more information about the
		width, height and facingMode attributes.

		The orientation attribute of the returned ARController is set to "portrait" if the userMedia video has larger
		height than width. Otherwise it's set to "landscape". The videoWidth and videoHeight attributes of the arController
		are set to be always in landscape configuration so that width is larger than height.

		@param {object} configuration The configuration object.
		@return {VideoElement} Returns the created video element.
	*/
	ARController.getUserMediaARController = function(configuration) {
		var obj = {};
		for (var i in configuration) {
			obj[i] = configuration[i];
		}
		var onSuccess = configuration.onSuccess;
		var cameraParamURL = configuration.cameraParam;

		obj.onSuccess = function() {
			new ARCameraParam(cameraParamURL, function() {
				var arCameraParam = this;
				var maxSize = configuration.maxARVideoSize || Math.max(video.videoWidth, video.videoHeight);
				var f = maxSize / Math.max(video.videoWidth, video.videoHeight);
				var w = f * video.videoWidth;
				var h = f * video.videoHeight;
				if (video.videoWidth < video.videoHeight) {
					var tmp = w;
					w = h;
					h = tmp;
				}
				var arController = new ARController(w, h, arCameraParam);
				arController.image = video;
				if (video.videoWidth < video.videoHeight) {
					arController.orientation = 'portrait';
					arController.videoWidth = video.videoHeight;
					arController.videoHeight = video.videoWidth;
				} else {
					arController.orientation = 'landscape';
					arController.videoWidth = video.videoWidth;
					arController.videoHeight = video.videoHeight;
				}
				onSuccess(arController, arCameraParam);
			}, function(err) {
				console.error("ARController: Failed to load ARCameraParam", err);
			});
		};

		var video = this.getUserMedia(obj);
		return video;
	};


	/** 
		ARCameraParam is used for loading AR camera parameters for use with ARController.
		Use by passing in an URL and a callback function.

			var camera = new ARCameraParam('Data/camera_para.dat', function() {
				console.log('loaded camera', this.id);
			},
			function(err) {
				console.log('failed to load camera', err);
			});

		@exports ARCameraParam
		@constructor
	 
		@param {string} src URL to load camera parameters from.
		@param {string} onload Onload callback to be called on successful parameter loading.
		@param {string} onerror Error callback to called when things don't work out.
	*/
	var ARCameraParam = function(src, onload, onerror) {
		this.id = -1;
		this._src = '';
		this.complete = false;
		this.onload = onload;
		this.onerror = onerror;
		if (src) {
			this.load(src);
		}
	};

	/** 
		Loads the given URL as camera parameters definition file into this ARCameraParam.

		Can only be called on an unloaded ARCameraParam instance. 

		@param {string} src URL to load.
	*/
	ARCameraParam.prototype.load = function(src) {
		if (this._src !== '') {
			throw("ARCameraParam: Trying to load camera parameters twice.")
		}
		this._src = src;
		if (src) {
			var self = this;
			artoolkit.loadCamera(src, function(id) {
				self.id = id;
				self.complete = true;
				self.onload();
			}, function(err) {
				self.onerror(err);
			});
		}
	};

	Object.defineProperty(ARCameraParam.prototype, 'src', {
		set: function(src) {
			this.load(src);
		},
		get: function() {
			return this._src;
		}
	});

	/**
		Destroys the camera parameter and frees associated Emscripten resources.

	*/
	ARCameraParam.prototype.dispose = function() {
		if (this.id !== -1) {
			artoolkit.deleteCamera(this.id);
		}
		this.id = -1;
		this._src = '';
		this.complete = false;
	};



	// ARToolKit exported JS API
	//
	var artoolkit = {

		UNKNOWN_MARKER: -1,
		PATTERN_MARKER: 0,
		BARCODE_MARKER: 1,

		loadCamera: loadCamera,

		addMarker: addMarker,
		addMultiMarker: addMultiMarker,

	};

	var FUNCTIONS = [
		'setup',
		'teardown',

		'setLogLevel',
		'getLogLevel',

		'setDebugMode',
		'getDebugMode',

		'getProcessingImage',

		'setMarkerInfoDir',
		'setMarkerInfoVertex',

		'getTransMatSquare',
		'getTransMatSquareCont',

		'getTransMatMultiSquare',
		'getTransMatMultiSquareRobust',

		'getMultiMarkerNum',
		'getMultiMarkerCount',

		'detectMarker',
		'getMarkerNum',

		'getMarker',
		'getMultiEachMarker',

		'setProjectionNearPlane',
		'getProjectionNearPlane',

		'setProjectionFarPlane',
		'getProjectionFarPlane',

		'setThresholdMode',
		'getThresholdMode',

		'setThreshold',
		'getThreshold',

		'setPatternDetectionMode',
		'getPatternDetectionMode',

		'setMatrixCodeType',
		'getMatrixCodeType',

		'setLabelingMode',
		'getLabelingMode',

		'setPattRatio',
		'getPattRatio',

		'setImageProcMode',
		'getImageProcMode',
	];

	function runWhenLoaded() {
		FUNCTIONS.forEach(function(n) {
			artoolkit[n] = Module[n];
		})

		for (var m in Module) {
			if (m.match(/^AR/))
			artoolkit[m] = Module[m];
		}
	}

	var marker_count = 0;
	function addMarker(arId, url, callback) {
		var filename = '/marker_' + marker_count++;
		ajax(url, filename, function() {
			var id = Module._addMarker(arId, filename);
			if (callback) callback(id);
		});
	}

	function bytesToString(array) {
		return String.fromCharCode.apply(String, array);
	}

	function parseMultiFile(bytes) {
		var str = bytesToString(bytes);

		var lines = str.split('\n');

		var files = [];

		var state = 0; // 0 - read,
		var markers = 0;

		lines.forEach(function(line) {
			line = line.trim();
			if (!line || line.startsWith('#')) return;

			switch (state) {
				case 0:
					markers = +line;
					state = 1;
					return;
				case 1: // filename or barcode
					if (!line.match(/^\d+$/)) {
						files.push(line);
					}
				case 2: // width
				case 3: // matrices
				case 4:
					state++;
					return;
				case 5:
					state = 1;
					return;
			}
		});

		return files;
	}

	var multi_marker_count = 0;

	function addMultiMarker(arId, url, callback) {
		var filename = '/multi_marker_' + multi_marker_count++;
		ajax(url, filename, function(bytes) {
			var files = parseMultiFile(bytes);

			function ok() {
				var markerID = Module._addMultiMarker(arId, filename);
				var markerNum = Module.getMultiMarkerNum(arId, markerID);
				if (callback) callback(markerID, markerNum);
			}

			if (!files.length) return ok();

			var path = url.split('/').slice(0, -1).join('/')
			files = files.map(function(file) {
				// FIXME super kludge - remove it
				// console.assert(file !== '')
				if( file === 'patt.hiro' || file === 'patt.kanji' || file === 'patt2.hiro' || file === 'patt2.kanji' ){
					// debugger
					return ['http://127.0.0.1:8080/data/data/' + file, file]
				}
				return [path + '/' + file, file]
			})
			ajaxDependencies(files, ok);
		});
	}

	var camera_count = 0;
	function loadCamera(url, callback) {
		var filename = '/camera_param_' + camera_count++;
		var writeCallback = function() {
			var id = Module._loadCamera(filename);
			if (callback) callback(id);
		};
		if (typeof url === 'object') { // Maybe it's a byte array
			writeByteArrayToFS(filename, url, writeCallback);
		} else if (url.indexOf("\n") > -1) { // Or a string with the camera param
			writeStringToFS(filename, url, writeCallback);
		} else {
			ajax(url, filename, writeCallback);
		}
	}


	// transfer image

	function writeStringToFS(target, string, callback) {
		var byteArray = new Uint8Array(string.length);
		for (var i=0; i<byteArray.length; i++) {
			byteArray[i] = string.charCodeAt(i) & 0xff;
		}
		writeByteArrayToFS(target, byteArray, callback);
	}

	function writeByteArrayToFS(target, byteArray, callback) {
		FS.writeFile(target, byteArray, { encoding: 'binary' });
		// console.log('FS written', target);

		callback(byteArray);
	}

	// Eg.
	//	ajax('../bin/Data2/markers.dat', '/Data2/markers.dat', callback);
	//	ajax('../bin/Data/patt.hiro', '/patt.hiro', callback);

	function ajax(url, target, callback) {
		var oReq = new XMLHttpRequest();
		oReq.open('GET', url, true);
		oReq.responseType = 'arraybuffer'; // blob arraybuffer

		oReq.onload = function(oEvent) {
			// console.log('ajax done for ', url);
			var arrayBuffer = oReq.response;
			var byteArray = new Uint8Array(arrayBuffer);
	// console.log('writeByteArrayToFS', target, byteArray.length, 'byte. url', url)
			writeByteArrayToFS(target, byteArray, callback);
		};

		oReq.send();
	}

	function ajaxDependencies(files, callback) {
		var next = files.pop();
		if (next) {
			ajax(next[0], next[1], function() {
				ajaxDependencies(files, callback);
			});
		} else {
			callback();
		}
	}

	/* Exports */
	window.artoolkit = artoolkit;
	window.ARController = ARController;
	window.ARCameraParam = ARCameraParam;

	if (window.Module) {
		runWhenLoaded();
	} else {
		window.Module = {
			onRuntimeInitialized: function() {
				runWhenLoaded();
			}
		};
	}

})();
/*
Copyright (c) 2011 Juan Mellado

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

/*
References:
- "ArUco: a minimal library for Augmented Reality applications based on OpenCv"
http://www.uco.es/investiga/grupos/ava/node/26
*/

var AR = AR || {};

AR.Marker = function(id, corners){
        this.id = id;
        this.corners = corners;
};

AR.Detector = function(){
        this.grey = new CV.Image();
        this.thres = new CV.Image();
        this.homography = new CV.Image();
        this.binary = [];
        this.contours = [];
        this.polys = [];
        this.candidates = [];
};

AR.Detector.prototype.detect = function(image){
        CV.grayscale(image, this.grey);
        CV.adaptiveThreshold(this.grey, this.thres, 2, 7);
        
        this.contours = CV.findContours(this.thres, this.binary);
        
        this.candidates = this.findCandidates(this.contours, image.width * 0.20, 0.05, 10);
        this.candidates = this.clockwiseCorners(this.candidates);
        this.candidates = this.notTooNear(this.candidates, 10);
        
        return this.findMarkers(this.grey, this.candidates, 49);
};

AR.Detector.prototype.findCandidates = function(contours, minSize, epsilon, minLength){
        var candidates = [], len = contours.length, contour, poly, i;
        
        this.polys = [];
        
        for (i = 0; i < len; ++ i){
                contour = contours[i];
                
                if (contour.length >= minSize){
                        poly = CV.approxPolyDP(contour, contour.length * epsilon);
                        
                        this.polys.push(poly);
                        
                        if ( (4 === poly.length) && ( CV.isContourConvex(poly) ) ){
                                
                                if ( CV.minEdgeLength(poly) >= minLength){
                                        candidates.push(poly);
                                }
                        }
                }
        }
        
        return candidates;
};

AR.Detector.prototype.clockwiseCorners = function(candidates){
        var len = candidates.length, dx1, dx2, dy1, dy2, swap, i;
        
        for (i = 0; i < len; ++ i){
                dx1 = candidates[i][1].x - candidates[i][0].x;
                dy1 = candidates[i][1].y - candidates[i][0].y;
                dx2 = candidates[i][2].x - candidates[i][0].x;
                dy2 = candidates[i][2].y - candidates[i][0].y;
                
                if ( (dx1 * dy2 - dy1 * dx2) < 0){
                        swap = candidates[i][1];
                        candidates[i][1] = candidates[i][3];
                        candidates[i][3] = swap;
                }
        }
        
        return candidates;
};

AR.Detector.prototype.notTooNear = function(candidates, minDist){
        var notTooNear = [], len = candidates.length, dist, dx, dy, i, j, k;
        
        for (i = 0; i < len; ++ i){
                
                for (j = i + 1; j < len; ++ j){
                        dist = 0;
                        
                        for (k = 0; k < 4; ++ k){
                                dx = candidates[i][k].x - candidates[j][k].x;
                                dy = candidates[i][k].y - candidates[j][k].y;
                                
                                dist += dx * dx + dy * dy;
                        }
                        
                        if ( (dist / 4) < (minDist * minDist) ){
                                
                                if ( CV.perimeter( candidates[i] ) < CV.perimeter( candidates[j] ) ){
                                        candidates[i].tooNear = true;
                                }else{
                                        candidates[j].tooNear = true;
                                }
                        }
                }
        }
        
        for (i = 0; i < len; ++ i){
                if ( !candidates[i].tooNear ){
                        notTooNear.push( candidates[i] );
                }
        }
        
        return notTooNear;
};

AR.Detector.prototype.findMarkers = function(imageSrc, candidates, warpSize){
        var markers = [], len = candidates.length, candidate, marker, i;
        
        for (i = 0; i < len; ++ i){
                candidate = candidates[i];
                
                CV.warp(imageSrc, this.homography, candidate, warpSize);
                
                CV.threshold(this.homography, this.homography, CV.otsu(this.homography) );
                
                marker = this.getMarker(this.homography, candidate);
                if (marker){
                        markers.push(marker);
                }
        }
        
        return markers;
};

AR.Detector.prototype.getMarker = function(imageSrc, candidate){
        var width = (imageSrc.width / 7) >>> 0,
        minZero = (width * width) >> 1,
        bits = [], rotations = [], distances = [],
        square, pair, inc, i, j;
        
        for (i = 0; i < 7; ++ i){
                inc = (0 === i || 6 === i)? 1: 6;
                
                for (j = 0; j < 7; j += inc){
                        square = {x: j * width, y: i * width, width: width, height: width};
                        if ( CV.countNonZero(imageSrc, square) > minZero){
                                return null;
                        }
                }
        }
        
        for (i = 0; i < 5; ++ i){
                bits[i] = [];
                
                for (j = 0; j < 5; ++ j){
                        square = {x: (j + 1) * width, y: (i + 1) * width, width: width, height: width};
                        
                        bits[i][j] = CV.countNonZero(imageSrc, square) > minZero? 1: 0;
                }
        }
        
        rotations[0] = bits;
        distances[0] = this.hammingDistance( rotations[0] );
        
        pair = {first: distances[0], second: 0};
        
        for (i = 1; i < 4; ++ i){
                rotations[i] = this.rotate( rotations[i - 1] );
                distances[i] = this.hammingDistance( rotations[i] );
                
                if (distances[i] < pair.first){
                        pair.first = distances[i];
                        pair.second = i;
                }
        }
        
        if (0 !== pair.first){
                return null;
        }
        
        return new AR.Marker(
                this.mat2id( rotations[pair.second] ), 
                this.rotate2(candidate, 4 - pair.second) 
        );
};

AR.Detector.prototype.hammingDistance = function(bits){
        var ids = [ [1,0,0,0,0], [1,0,1,1,1], [0,1,0,0,1], [0,1,1,1,0] ],
        dist = 0, sum, minSum, i, j, k;
        
        for (i = 0; i < 5; ++ i){
                minSum = Infinity;
                
                for (j = 0; j < 4; ++ j){
                        sum = 0;
                        
                        for (k = 0; k < 5; ++ k){
                                sum += bits[i][k] === ids[j][k]? 0: 1;
                        }
                        
                        if (sum < minSum){
                                minSum = sum;
                        }
                }
                
                dist += minSum;
        }
        
        return dist;
};

AR.Detector.prototype.mat2id = function(bits){
        var id = 0, i;
        
        for (i = 0; i < 5; ++ i){
                id <<= 1;
                id |= bits[i][1];
                id <<= 1;
                id |= bits[i][3];
        }
        
        return id;
};

AR.Detector.prototype.rotate = function(src){
        var dst = [], len = src.length, i, j;
        
        for (i = 0; i < len; ++ i){
                dst[i] = [];
                for (j = 0; j < src[i].length; ++ j){
                        dst[i][j] = src[src[i].length - j - 1][i];
                }
        }
        
        return dst;
};

AR.Detector.prototype.rotate2 = function(src, rotation){
        var dst = [], len = src.length, i;
        
        for (i = 0; i < len; ++ i){
                dst[i] = src[ (rotation + i) % len ];
        }
        
        return dst;
};
/*
Copyright (c) 2011 Juan Mellado

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

/*
References:
- "OpenCV: Open Computer Vision Library"
http://sourceforge.net/projects/opencvlibrary/
- "Stack Blur: Fast But Goodlooking"
http://incubator.quasimondo.com/processing/fast_blur_deluxe.php
*/

var CV = CV || {};

CV.Image = function(width, height, data){
        this.width = width || 0;
        this.height = height || 0;
        this.data = data || [];
};

CV.grayscale = function(imageSrc, imageDst){
        var src = imageSrc.data, dst = imageDst.data, len = src.length,
        i = 0, j = 0;
        
        for (; i < len; i += 4){
                dst[j ++] =
                (src[i] * 0.299 + src[i + 1] * 0.587 + src[i + 2] * 0.114 + 0.5) & 0xff;
        }
        
        imageDst.width = imageSrc.width;
        imageDst.height = imageSrc.height;
        
        return imageDst;
};

CV.threshold = function(imageSrc, imageDst, threshold){
        var src = imageSrc.data, dst = imageDst.data,
        len = src.length, tab = [], i;
        
        for (i = 0; i < 256; ++ i){
                tab[i] = i <= threshold? 0: 255;
        }
        
        for (i = 0; i < len; ++ i){
                dst[i] = tab[ src[i] ];
        }
        
        imageDst.width = imageSrc.width;
        imageDst.height = imageSrc.height;
        
        return imageDst;
};

CV.adaptiveThreshold = function(imageSrc, imageDst, kernelSize, threshold){
        var src = imageSrc.data, dst = imageDst.data, len = src.length, tab = [], i;
        
        CV.stackBoxBlur(imageSrc, imageDst, kernelSize);
        
        for (i = 0; i < 768; ++ i){
                tab[i] = (i - 255 <= -threshold)? 255: 0;
        }
        
        for (i = 0; i < len; ++ i){
                dst[i] = tab[ src[i] - dst[i] + 255 ];
        }
        
        imageDst.width = imageSrc.width;
        imageDst.height = imageSrc.height;
        
        return imageDst;
};

CV.otsu = function(imageSrc){
        var src = imageSrc.data, len = src.length, hist = [],
        threshold = 0, sum = 0, sumB = 0, wB = 0, wF = 0, max = 0,
        mu, between, i;
        
        for (i = 0; i < 256; ++ i){
                hist[i] = 0;
        }
        
        for (i = 0; i < len; ++ i){
                hist[ src[i] ] ++;
        }
        
        for (i = 0; i < 256; ++ i){
                sum += hist[i] * i;
        }
        
        for (i = 0; i < 256; ++ i){
                wB += hist[i];
                if (0 !== wB){
                        
                        wF = len - wB;
                        if (0 === wF){
                                break;
                        }
                        
                        sumB += hist[i] * i;
                        
                        mu = (sumB / wB) - ( (sum - sumB) / wF );
                        
                        between = wB * wF * mu * mu;
                        
                        if (between > max){
                                max = between;
                                threshold = i;
                        }
                }
        }
        
        return threshold;
};

CV.stackBoxBlurMult =
[1, 171, 205, 293, 57, 373, 79, 137, 241, 27, 391, 357, 41, 19, 283, 265];

CV.stackBoxBlurShift =
[0, 9, 10, 11, 9, 12, 10, 11, 12, 9, 13, 13, 10, 9, 13, 13];

CV.BlurStack = function(){
        this.color = 0;
        this.next = null;
};

CV.stackBoxBlur = function(imageSrc, imageDst, kernelSize){
        var src = imageSrc.data, dst = imageDst.data,
        height = imageSrc.height, width = imageSrc.width,
        heightMinus1 = height - 1, widthMinus1 = width - 1,
        size = kernelSize + kernelSize + 1, radius = kernelSize + 1,
        mult = CV.stackBoxBlurMult[kernelSize],
        shift = CV.stackBoxBlurShift[kernelSize],
        stack, stackStart, color, sum, pos, start, p, x, y, i;
        
        stack = stackStart = new CV.BlurStack();
        for (i = 1; i < size; ++ i){
                stack = stack.next = new CV.BlurStack();
        }
        stack.next = stackStart;
        
        pos = 0;
        
        for (y = 0; y < height; ++ y){
                start = pos;
                
                color = src[pos];
                sum = radius * color;
                
                stack = stackStart;
                for (i = 0; i < radius; ++ i){
                        stack.color = color;
                        stack = stack.next;
                }
                for (i = 1; i < radius; ++ i){
                        stack.color = src[pos + i];
                        sum += stack.color;
                        stack = stack.next;
                }
                
                stack = stackStart;
                for (x = 0; x < width; ++ x){
                        dst[pos ++] = (sum * mult) >>> shift;
                        
                        p = x + radius;
                        p = start + (p < widthMinus1? p: widthMinus1);
                        sum -= stack.color - src[p];
                        
                        stack.color = src[p];
                        stack = stack.next;
                }
        }
        
        for (x = 0; x < width; ++ x){
                pos = x;
                start = pos + width;
                
                color = dst[pos];
                sum = radius * color;
                
                stack = stackStart;
                for (i = 0; i < radius; ++ i){
                        stack.color = color;
                        stack = stack.next;
                }
                for (i = 1; i < radius; ++ i){
                        stack.color = dst[start];
                        sum += stack.color;
                        stack = stack.next;
                        
                        start += width;
                }
                
                stack = stackStart;
                for (y = 0; y < height; ++ y){
                        dst[pos] = (sum * mult) >>> shift;
                        
                        p = y + radius;
                        p = x + ( (p < heightMinus1? p: heightMinus1) * width );
                        sum -= stack.color - dst[p];
                        
                        stack.color = dst[p];
                        stack = stack.next;
                        
                        pos += width;
                }
        }
        
        return imageDst;
};

CV.gaussianBlur = function(imageSrc, imageDst, imageMean, kernelSize){
        var kernel = CV.gaussianKernel(kernelSize);
        
        imageDst.width = imageSrc.width;
        imageDst.height = imageSrc.height;
        
        imageMean.width = imageSrc.width;
        imageMean.height = imageSrc.height;
        
        CV.gaussianBlurFilter(imageSrc, imageMean, kernel, true);
        CV.gaussianBlurFilter(imageMean, imageDst, kernel, false);
        
        return imageDst;
};

CV.gaussianBlurFilter = function(imageSrc, imageDst, kernel, horizontal){
        var src = imageSrc.data, dst = imageDst.data,
        height = imageSrc.height, width = imageSrc.width,
        pos = 0, limit = kernel.length >> 1,
        cur, value, i, j, k;
        
        for (i = 0; i < height; ++ i){
                
                for (j = 0; j < width; ++ j){
                        value = 0.0;
                        
                        for (k = -limit; k <= limit; ++ k){
                                
                                if (horizontal){
                                        cur = pos + k;
                                        if (j + k < 0){
                                                cur = pos;
                                        }
                                        else if (j + k >= width){
                                                cur = pos;
                                        }
                                }else{
                                        cur = pos + (k * width);
                                        if (i + k < 0){
                                                cur = pos;
                                        }
                                        else if (i + k >= height){
                                                cur = pos;
                                        }
                                }
                                
                                value += kernel[limit + k] * src[cur];
                        }
                        
                        dst[pos ++] = horizontal? value: (value + 0.5) & 0xff;
                }
        }
        
        return imageDst;
};

CV.gaussianKernel = function(kernelSize){
        var tab =
        [ [1],
        [0.25, 0.5, 0.25],
        [0.0625, 0.25, 0.375, 0.25, 0.0625],
        [0.03125, 0.109375, 0.21875, 0.28125, 0.21875, 0.109375, 0.03125] ],
        kernel = [], center, sigma, scale2X, sum, x, i;
        
        if ( (kernelSize <= 7) && (kernelSize % 2 === 1) ){
                kernel = tab[kernelSize >> 1];
        }else{
                center = (kernelSize - 1.0) * 0.5;
                sigma = 0.8 + (0.3 * (center - 1.0) );
                scale2X = -0.5 / (sigma * sigma);
                sum = 0.0;
                for (i = 0; i < kernelSize; ++ i){
                        x = i - center;
                        sum += kernel[i] = Math.exp(scale2X * x * x);
                }
                sum = 1 / sum;
                for (i = 0; i < kernelSize; ++ i){
                        kernel[i] *= sum;
                }  
        }
        
        return kernel;
};

CV.findContours = function(imageSrc, binary){
        var width = imageSrc.width, height = imageSrc.height, contours = [],
        src, deltas, pos, pix, nbd, outer, hole, i, j;
        
        src = CV.binaryBorder(imageSrc, binary);
        
        deltas = CV.neighborhoodDeltas(width + 2);
        
        pos = width + 3;
        nbd = 1;
        
        for (i = 0; i < height; ++ i, pos += 2){
                
                for (j = 0; j < width; ++ j, ++ pos){
                        pix = src[pos];
                        
                        if (0 !== pix){
                                outer = hole = false;
                                
                                if (1 === pix && 0 === src[pos - 1]){
                                        outer = true;
                                }
                                else if (pix >= 1 && 0 === src[pos + 1]){
                                        hole = true;
                                }
                                
                                if (outer || hole){
                                        ++ nbd;
                                        
                                        contours.push( CV.borderFollowing(src, pos, nbd, {x: j, y: i}, hole, deltas) );
                                }
                        }
                }
        }  
        
        return contours;
};

CV.borderFollowing = function(src, pos, nbd, point, hole, deltas){
        var contour = [], pos1, pos3, pos4, s, s_end, s_prev;
        
        contour.hole = hole;
        
        s = s_end = hole? 0: 4;
        do{
                s = (s - 1) & 7;
                pos1 = pos + deltas[s];
                if (src[pos1] !== 0){
                        break;
                }
        }while(s !== s_end);
        
        if (s === s_end){
                src[pos] = -nbd;
                contour.push( {x: point.x, y: point.y} );
                
        }else{
                pos3 = pos;
                s_prev = s ^ 4;
                
                while(true){
                        s_end = s;
                        
                        do{
                                pos4 = pos3 + deltas[++ s];
                        }while(src[pos4] === 0);
                        
                        s &= 7;
                        
                        if ( ( (s - 1) >>> 0) < (s_end >>> 0) ){
                                src[pos3] = -nbd;
                        }
                        else if (src[pos3] === 1){
                                src[pos3] = nbd;
                        }
                        
                        contour.push( {x: point.x, y: point.y} );
                        
                        s_prev = s;
                        
                        point.x += CV.neighborhood[s][0];
                        point.y += CV.neighborhood[s][1];
                        
                        if ( (pos4 === pos) && (pos3 === pos1) ){
                                break;
                        }
                        
                        pos3 = pos4;
                        s = (s + 4) & 7;
                }
        }
        
        return contour;
};

CV.neighborhood = 
[ [1, 0], [1, -1], [0, -1], [-1, -1], [-1, 0], [-1, 1], [0, 1], [1, 1] ];

CV.neighborhoodDeltas = function(width){
        var deltas = [], len = CV.neighborhood.length, i = 0;
        
        for (; i < len; ++ i){
                deltas[i] = CV.neighborhood[i][0] + (CV.neighborhood[i][1] * width);
        }
        
        return deltas.concat(deltas);
};

CV.approxPolyDP = function(contour, epsilon){
        var slice = {start_index: 0, end_index: 0},
        right_slice = {start_index: 0, end_index: 0},
        poly = [], stack = [], len = contour.length,
        pt, start_pt, end_pt, dist, max_dist, le_eps,
        dx, dy, i, j, k;
        
        epsilon *= epsilon;
        
        k = 0;
        
        for (i = 0; i < 3; ++ i){
                max_dist = 0;
                
                k = (k + right_slice.start_index) % len;
                start_pt = contour[k];
                if (++ k === len) {k = 0;}
                
                for (j = 1; j < len; ++ j){
                        pt = contour[k];
                        if (++ k === len) {k = 0;}
                        
                        dx = pt.x - start_pt.x;
                        dy = pt.y - start_pt.y;
                        dist = dx * dx + dy * dy;
                        
                        if (dist > max_dist){
                                max_dist = dist;
                                right_slice.start_index = j;
                        }
                }
        }
        
        if (max_dist <= epsilon){
                poly.push( {x: start_pt.x, y: start_pt.y} );
                
        }else{
                slice.start_index = k;
                slice.end_index = (right_slice.start_index += slice.start_index);
                
                right_slice.start_index -= right_slice.start_index >= len? len: 0;
                right_slice.end_index = slice.start_index;
                if (right_slice.end_index < right_slice.start_index){
                        right_slice.end_index += len;
                }
                
                stack.push( {start_index: right_slice.start_index, end_index: right_slice.end_index} );
                stack.push( {start_index: slice.start_index, end_index: slice.end_index} );
        }
        
        while(stack.length !== 0){
                slice = stack.pop();
                
                end_pt = contour[slice.end_index % len];
                start_pt = contour[k = slice.start_index % len];
                if (++ k === len) {k = 0;}
                
                if (slice.end_index <= slice.start_index + 1){
                        le_eps = true;
                        
                }else{
                        max_dist = 0;
                        
                        dx = end_pt.x - start_pt.x;
                        dy = end_pt.y - start_pt.y;
                        
                        for (i = slice.start_index + 1; i < slice.end_index; ++ i){
                                pt = contour[k];
                                if (++ k === len) {k = 0;}
                                
                                dist = Math.abs( (pt.y - start_pt.y) * dx - (pt.x - start_pt.x) * dy);
                                
                                if (dist > max_dist){
                                        max_dist = dist;
                                        right_slice.start_index = i;
                                }
                        }
                        
                        le_eps = max_dist * max_dist <= epsilon * (dx * dx + dy * dy);
                }
                
                if (le_eps){
                        poly.push( {x: start_pt.x, y: start_pt.y} );
                        
                }else{
                        right_slice.end_index = slice.end_index;
                        slice.end_index = right_slice.start_index;
                        
                        stack.push( {start_index: right_slice.start_index, end_index: right_slice.end_index} );
                        stack.push( {start_index: slice.start_index, end_index: slice.end_index} );
                }
        }
        
        return poly;
};

CV.warp = function(imageSrc, imageDst, contour, warpSize){
        var src = imageSrc.data, dst = imageDst.data,
        width = imageSrc.width, height = imageSrc.height,
        pos = 0,
        sx1, sx2, dx1, dx2, sy1, sy2, dy1, dy2, p1, p2, p3, p4,
        m, r, s, t, u, v, w, x, y, i, j;
        
        m = CV.getPerspectiveTransform(contour, warpSize - 1);
        
        r = m[8];
        s = m[2];
        t = m[5];
        
        for (i = 0; i < warpSize; ++ i){
                r += m[7];
                s += m[1];
                t += m[4];
                
                u = r;
                v = s;
                w = t;
                
                for (j = 0; j < warpSize; ++ j){
                        u += m[6];
                        v += m[0];
                        w += m[3];
                        
                        x = v / u;
                        y = w / u;
                        
                        sx1 = x >>> 0;
                        sx2 = (sx1 === width - 1)? sx1: sx1 + 1;
                        dx1 = x - sx1;
                        dx2 = 1.0 - dx1;
                        
                        sy1 = y >>> 0;
                        sy2 = (sy1 === height - 1)? sy1: sy1 + 1;
                        dy1 = y - sy1;
                        dy2 = 1.0 - dy1;
                        
                        p1 = p2 = sy1 * width;
                        p3 = p4 = sy2 * width;
                        
                        dst[pos ++] = 
                        (dy2 * (dx2 * src[p1 + sx1] + dx1 * src[p2 + sx2]) +
                        dy1 * (dx2 * src[p3 + sx1] + dx1 * src[p4 + sx2]) ) & 0xff;
                        
                }
        }
        
        imageDst.width = warpSize;
        imageDst.height = warpSize;
        
        return imageDst;
};

CV.getPerspectiveTransform = function(src, size){
        var rq = CV.square2quad(src);
        
        rq[0] /= size;
        rq[1] /= size;
        rq[3] /= size;
        rq[4] /= size;
        rq[6] /= size;
        rq[7] /= size;
        
        return rq;
};

CV.square2quad = function(src){
        var sq = [], px, py, dx1, dx2, dy1, dy2, den;
        
        px = src[0].x - src[1].x + src[2].x - src[3].x;
        py = src[0].y - src[1].y + src[2].y - src[3].y;
        
        if (0 === px && 0 === py){
                sq[0] = src[1].x - src[0].x;
                sq[1] = src[2].x - src[1].x;
                sq[2] = src[0].x;
                sq[3] = src[1].y - src[0].y;
                sq[4] = src[2].y - src[1].y;
                sq[5] = src[0].y;
                sq[6] = 0;
                sq[7] = 0;
                sq[8] = 1;
                
        }else{
                dx1 = src[1].x - src[2].x;
                dx2 = src[3].x - src[2].x;
                dy1 = src[1].y - src[2].y;
                dy2 = src[3].y - src[2].y;
                den = dx1 * dy2 - dx2 * dy1;
                
                sq[6] = (px * dy2 - dx2 * py) / den;
                sq[7] = (dx1 * py - px * dy1) / den;
                sq[8] = 1;
                sq[0] = src[1].x - src[0].x + sq[6] * src[1].x;
                sq[1] = src[3].x - src[0].x + sq[7] * src[3].x;
                sq[2] = src[0].x;
                sq[3] = src[1].y - src[0].y + sq[6] * src[1].y;
                sq[4] = src[3].y - src[0].y + sq[7] * src[3].y;
                sq[5] = src[0].y;
        }
        
        return sq;
};

CV.isContourConvex = function(contour){
        var orientation = 0, convex = true,
        len = contour.length, i = 0, j = 0,
        cur_pt, prev_pt, dxdy0, dydx0, dx0, dy0, dx, dy;
        
        prev_pt = contour[len - 1];
        cur_pt = contour[0];
        
        dx0 = cur_pt.x - prev_pt.x;
        dy0 = cur_pt.y - prev_pt.y;
        
        for (; i < len; ++ i){
                if (++ j === len) {j = 0;}
                
                prev_pt = cur_pt;
                cur_pt = contour[j];
                
                dx = cur_pt.x - prev_pt.x;
                dy = cur_pt.y - prev_pt.y;
                dxdy0 = dx * dy0;
                dydx0 = dy * dx0;
                
                orientation |= dydx0 > dxdy0? 1: (dydx0 < dxdy0? 2: 3);
                
                if (3 === orientation){
                        convex = false;
                        break;
                }
                
                dx0 = dx;
                dy0 = dy;
        }
        
        return convex;
};

CV.perimeter = function(poly){
        var len = poly.length, i = 0, j = len - 1,
        p = 0.0, dx, dy;
        
        for (; i < len; j = i ++){
                dx = poly[i].x - poly[j].x;
                dy = poly[i].y - poly[j].y;
                
                p += Math.sqrt(dx * dx + dy * dy) ;
        }
        
        return p;
};

CV.minEdgeLength = function(poly){
        var len = poly.length, i = 0, j = len - 1, 
        min = Infinity, d, dx, dy;
        
        for (; i < len; j = i ++){
                dx = poly[i].x - poly[j].x;
                dy = poly[i].y - poly[j].y;
                
                d = dx * dx + dy * dy;
                
                if (d < min){
                        min = d;
                }
        }
        
        return Math.sqrt(min);
};

CV.countNonZero = function(imageSrc, square){
        var src = imageSrc.data, height = square.height, width = square.width,
        pos = square.x + (square.y * imageSrc.width),
        span = imageSrc.width - width,
        nz = 0, i, j;
        
        for (i = 0; i < height; ++ i){
                
                for (j = 0; j < width; ++ j){
                        
                        if ( 0 !== src[pos ++] ){
                                ++ nz;
                        }
                }
                
                pos += span;
        }
        
        return nz;
};

CV.binaryBorder = function(imageSrc, dst){
        var src = imageSrc.data, height = imageSrc.height, width = imageSrc.width,
        posSrc = 0, posDst = 0, i, j;
        
        for (j = -2; j < width; ++ j){
                dst[posDst ++] = 0;
        }
        
        for (i = 0; i < height; ++ i){
                dst[posDst ++] = 0;
                
                for (j = 0; j < width; ++ j){
                        dst[posDst ++] = (0 === src[posSrc ++]? 0: 1);
                }
                
                dst[posDst ++] = 0;
        }
        
        for (j = -2; j < width; ++ j){
                dst[posDst ++] = 0;
        }
        
        return dst;
};
/*
Copyright (c) 2012 Juan Mellado

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

/*
References:
- "Iterative Pose Estimation using Coplanar Feature Points"
Denis Oberkampf, Daniel F. DeMenthon, Larry S. Davis
http://www.cfar.umd.edu/~daniel/daniel_papersfordownload/CoplanarPts.pdf
*/

var POS = POS || {};

POS.Posit = function(modelSize, focalLength){
        this.objectPoints = this.buildModel(modelSize);
        this.focalLength = focalLength;
        
        this.objectVectors = [];
        this.objectNormal = [];
        this.objectMatrix = [[],[],[]];
        
        this.init();
};

POS.Posit.prototype.buildModel = function(modelSize){
        var half = modelSize / 2.0;
        
        return [
                [-half,  half, 0.0],
                [ half,  half, 0.0],
                [ half, -half, 0.0],
                [-half, -half, 0.0] 
        ];
};

POS.Posit.prototype.init = function(){
        var np = this.objectPoints.length,
        vectors = [], n = [], len = 0.0, row = 2, i;
        
        for (i = 0; i < np; ++ i){
                this.objectVectors[i] = [this.objectPoints[i][0] - this.objectPoints[0][0],
                this.objectPoints[i][1] - this.objectPoints[0][1],
                this.objectPoints[i][2] - this.objectPoints[0][2]];
                
                vectors[i] = [this.objectVectors[i][0],
                this.objectVectors[i][1],
                this.objectVectors[i][2]];
        }
        
        while(0.0 === len){
                n[0] = this.objectVectors[1][1] * this.objectVectors[row][2] -
                this.objectVectors[1][2] * this.objectVectors[row][1];
                n[1] = this.objectVectors[1][2] * this.objectVectors[row][0] -
                this.objectVectors[1][0] * this.objectVectors[row][2];
                n[2] = this.objectVectors[1][0] * this.objectVectors[row][1] -
                this.objectVectors[1][1] * this.objectVectors[row][0];
                
                len = Math.sqrt(n[0] * n[0] + n[1] * n[1] + n[2] * n[2]);
                
                ++ row;
        }
        
        for (i = 0; i < 3; ++ i){
                this.objectNormal[i] = n[i] / len;
        }
        
        POS.pseudoInverse(vectors, np, this.objectMatrix);
};

POS.Posit.prototype.pose = function(imagePoints){
        var posRotation1 = [[],[],[]], posRotation2 = [[],[],[]], posTranslation = [],
        rotation1 = [[],[],[]], rotation2 = [[],[],[]], translation1 = [], translation2 = [],
        error1, error2, valid1, valid2, i, j;
        
        this.pos(imagePoints, posRotation1, posRotation2, posTranslation);
        
        valid1 = this.isValid(posRotation1, posTranslation);
        if (valid1){
                error1 = this.iterate(imagePoints, posRotation1, posTranslation, rotation1, translation1);
        }else{
                error1 = {euclidean: -1.0, pixels: -1, maximum: -1.0};
        }
        
        valid2 = this.isValid(posRotation2, posTranslation);
        if (valid2){
                error2 = this.iterate(imagePoints, posRotation2, posTranslation, rotation2, translation2);
        }else{
                error2 = {euclidean: -1.0, pixels: -1, maximum: -1.0};
        }
        
        for (i = 0; i < 3; ++ i){
                for (j = 0; j < 3; ++ j){
                        if (valid1){
                                translation1[i] -= rotation1[i][j] * this.objectPoints[0][j];
                        }
                        if (valid2){
                                translation2[i] -= rotation2[i][j] * this.objectPoints[0][j];
                        }
                }
        }
        
        return error1.euclidean < error2.euclidean?
        new POS.Pose(error1.pixels, rotation1, translation1, error2.pixels, rotation2, translation2):
        new POS.Pose(error2.pixels, rotation2, translation2, error1.pixels, rotation1, translation1);
};

POS.Posit.prototype.pos = function(imagePoints, rotation1, rotation2, translation){
        var np = this.objectPoints.length, imageVectors = [],
        i0 = [], j0 = [], ivec = [], jvec = [], row1 = [], row2 = [], row3 = [],
        i0i0, j0j0, i0j0, delta, q, lambda, mu, scale, i, j;
        
        for (i = 0; i < np; ++ i){
                imageVectors[i] = [imagePoints[i].x - imagePoints[0].x,
                imagePoints[i].y - imagePoints[0].y];
        }
        
        //i0 and j0
        for (i = 0; i < 3; ++ i){
                i0[i] = 0.0;
                j0[i] = 0.0;
                for (j = 0; j < np; ++ j){
                        i0[i] += this.objectMatrix[i][j] * imageVectors[j][0];
                        j0[i] += this.objectMatrix[i][j] * imageVectors[j][1];
                }
        }
        
        i0i0 = i0[0] * i0[0] + i0[1] * i0[1] + i0[2] * i0[2];
        j0j0 = j0[0] * j0[0] + j0[1] * j0[1] + j0[2] * j0[2];
        i0j0 = i0[0] * j0[0] + i0[1] * j0[1] + i0[2] * j0[2];
        
        //Lambda and mu
        delta = (j0j0 - i0i0) * (j0j0 - i0i0) + 4.0 * (i0j0 * i0j0);
        
        if (j0j0 - i0i0 >= 0.0){
                q = (j0j0 - i0i0 + Math.sqrt(delta) ) / 2.0;
        }else{
                q = (j0j0 - i0i0 - Math.sqrt(delta) ) / 2.0;
        }
        
        if (q >= 0.0){
                lambda = Math.sqrt(q);
                if (0.0 === lambda){
                        mu = 0.0;
                }else{
                        mu = -i0j0 / lambda;
                }
        }else{
                lambda = Math.sqrt( -(i0j0 * i0j0) / q);
                if (0.0 === lambda){
                        mu = Math.sqrt(i0i0 - j0j0);
                }else{
                        mu = -i0j0 / lambda;
                }
        }
        
        //First rotation
        for (i = 0; i < 3; ++ i){
                ivec[i] = i0[i] + lambda * this.objectNormal[i];
                jvec[i] = j0[i] + mu * this.objectNormal[i];
        }
        
        scale = Math.sqrt(ivec[0] * ivec[0] + ivec[1] * ivec[1] + ivec[2] * ivec[2]);
        
        for (i = 0; i < 3; ++ i){
                row1[i] = ivec[i] / scale;
                row2[i] = jvec[i] / scale;
        }
        
        row3[0] = row1[1] * row2[2] - row1[2] * row2[1];
        row3[1] = row1[2] * row2[0] - row1[0] * row2[2];
        row3[2] = row1[0] * row2[1] - row1[1] * row2[0];
        
        for (i = 0; i < 3; ++ i){
                rotation1[0][i] = row1[i];
                rotation1[1][i] = row2[i];
                rotation1[2][i] = row3[i];
        }
        
        //Second rotation
        for (i = 0; i < 3; ++ i){
                ivec[i] = i0[i] - lambda * this.objectNormal[i];
                jvec[i] = j0[i] - mu * this.objectNormal[i];
        }
        
        for (i = 0; i < 3; ++ i){
                row1[i] = ivec[i] / scale;
                row2[i] = jvec[i] / scale;
        }
        
        row3[0] = row1[1] * row2[2] - row1[2] * row2[1];
        row3[1] = row1[2] * row2[0] - row1[0] * row2[2];
        row3[2] = row1[0] * row2[1] - row1[1] * row2[0];
        
        for (i = 0; i < 3; ++ i){
                rotation2[0][i] = row1[i];
                rotation2[1][i] = row2[i];
                rotation2[2][i] = row3[i];
        }
        
        //Translation
        translation[0] = imagePoints[0].x / scale;
        translation[1] = imagePoints[0].y / scale;
        translation[2] = this.focalLength / scale;
};

POS.Posit.prototype.isValid = function(rotation, translation){
        var np = this.objectPoints.length, zmin = Infinity, i = 0, zi;
        
        for (; i < np; ++ i){
                zi = translation[2] +
                (rotation[2][0] * this.objectVectors[i][0] +
                        rotation[2][1] * this.objectVectors[i][1] +
                        rotation[2][2] * this.objectVectors[i][2]
                );
                if (zi < zmin){
                        zmin = zi;
                }
        }
        
        return zmin >= 0.0;
};

POS.Posit.prototype.iterate = function(imagePoints, posRotation, posTranslation, rotation, translation){
        var np = this.objectPoints.length,
        oldSopImagePoints = [], sopImagePoints = [],
        rotation1 = [[],[],[]], rotation2 = [[],[],[]],
        translation1 = [], translation2 = [],
        converged = false, iteration = 0,
        oldImageDifference, imageDifference, factor,
        error, error1, error2, delta, i, j;
        
        for (i = 0; i < np; ++ i){
                oldSopImagePoints[i] = {x: imagePoints[i].x,
                        y: imagePoints[i].y
                };
        }
        
        for (i = 0; i < 3; ++ i){
                for (j = 0; j < 3; ++ j){
                        rotation[i][j] = posRotation[i][j];
                }
                translation[i] = posTranslation[i];
        }
        
        for (i = 0; i < np; ++ i){
                factor = 0.0;
                for (j = 0; j < 3; ++ j){
                        factor += this.objectVectors[i][j] * rotation[2][j] / translation[2];
                }
                sopImagePoints[i] = {x: (1.0 + factor) * imagePoints[i].x,
                        y: (1.0 + factor) * imagePoints[i].y
                };
        }
        
        imageDifference = 0.0;
        
        for (i = 0; i < np; ++ i){
                imageDifference += Math.abs(sopImagePoints[i].x - oldSopImagePoints[i].x);
                imageDifference += Math.abs(sopImagePoints[i].y - oldSopImagePoints[i].y);
        }
        
        for (i = 0; i < 3; ++ i){
                translation1[i] = translation[i] -
                (rotation[i][0] * this.objectPoints[0][0] +
                        rotation[i][1] * this.objectPoints[0][1] +
                        rotation[i][2] * this.objectPoints[0][2]
                );
        }
        
        error = error1 = this.error(imagePoints, rotation, translation1);
        
        //Convergence
        converged = (0.0 === error1.pixels) || (imageDifference < 0.01);
        
        while( iteration ++ < 100 && !converged ){
                
                for (i = 0; i < np; ++ i){
                        oldSopImagePoints[i].x = sopImagePoints[i].x;
                        oldSopImagePoints[i].y = sopImagePoints[i].y;
                }
                
                this.pos(sopImagePoints, rotation1, rotation2, translation);
                
                for (i = 0; i < 3; ++ i){
                        translation1[i] = translation[i] -
                        (rotation1[i][0] * this.objectPoints[0][0] +
                                rotation1[i][1] * this.objectPoints[0][1] +
                                rotation1[i][2] * this.objectPoints[0][2]
                        );
                        
                        translation2[i] = translation[i] -
                        (rotation2[i][0] * this.objectPoints[0][0] +
                                rotation2[i][1] * this.objectPoints[0][1] +
                                rotation2[i][2] * this.objectPoints[0][2]
                        );
                }
                
                error1 = this.error(imagePoints, rotation1, translation1);
                error2 = this.error(imagePoints, rotation2, translation2);
                
                if ( (error1.euclidean >= 0.0) && (error2.euclidean >= 0.0) ){
                        if (error2.euclidean < error1.euclidean){
                                error = error2;
                                for (i = 0; i < 3; ++ i){
                                        for (j = 0; j < 3; ++ j){
                                                rotation[i][j] = rotation2[i][j];
                                        }
                                }
                        }else{
                                error = error1;
                                for (i = 0; i < 3; ++ i){
                                        for (j = 0; j < 3; ++ j){
                                                rotation[i][j] = rotation1[i][j];
                                        }
                                }
                        }
                }
                
                if ( (error1.euclidean < 0.0) && (error2.euclidean >= 0.0) ){
                        error = error2;
                        for (i = 0; i < 3; ++ i){
                                for (j = 0; j < 3; ++ j){
                                        rotation[i][j] = rotation2[i][j];
                                }
                        }
                }
                
                if ( (error2.euclidean < 0.0) && (error1.euclidean >= 0.0) ){
                        error = error1;
                        for (i = 0; i < 3; ++ i){
                                for (j = 0; j < 3; ++ j){
                                        rotation[i][j] = rotation1[i][j];
                                }
                        }
                }
                
                for (i = 0; i < np; ++ i){
                        factor = 0.0;
                        for (j = 0; j < 3; ++ j){
                                factor += this.objectVectors[i][j] * rotation[2][j] / translation[2];
                        }
                        sopImagePoints[i].x = (1.0 + factor) * imagePoints[i].x;
                        sopImagePoints[i].y = (1.0 + factor) * imagePoints[i].y;
                }
                
                oldImageDifference = imageDifference;
                imageDifference = 0.0;
                
                for (i = 0; i < np; ++ i){
                        imageDifference += Math.abs(sopImagePoints[i].x - oldSopImagePoints[i].x);
                        imageDifference += Math.abs(sopImagePoints[i].y - oldSopImagePoints[i].y);
                }
                
                delta = Math.abs(imageDifference - oldImageDifference);
                
                converged = (0.0 === error.pixels) || (delta < 0.01);
        }
        
        return error;
};

POS.Posit.prototype.error = function(imagePoints, rotation, translation){
        var np = this.objectPoints.length,
        move = [], projection = [], errorvec = [],
        euclidean = 0.0, pixels = 0.0, maximum = 0.0,
        i, j, k;
        
        if ( !this.isValid(rotation, translation) ){
                return {euclidean: -1.0, pixels: -1, maximum: -1.0};
        }
        
        for (i = 0; i < np; ++ i){
                move[i] = [];
                for (j = 0; j < 3; ++ j){
                        move[i][j] = translation[j];
                }
        }
        
        for (i = 0; i < np; ++ i){
                for (j = 0; j < 3; ++ j){
                        for (k = 0; k < 3; ++ k){
                                move[i][j] += rotation[j][k] * this.objectPoints[i][k];
                        }
                }
        }
        
        for (i = 0; i < np; ++ i){
                projection[i] = [];
                for (j = 0; j < 2; ++ j){
                        projection[i][j] = this.focalLength * move[i][j] / move[i][2];
                }
        }
        
        for (i = 0; i < np; ++ i){
                errorvec[i] = [projection[i][0] - imagePoints[i].x,
                projection[i][1] - imagePoints[i].y];
        }
        
        for (i = 0; i < np; ++ i){
                euclidean += Math.sqrt(errorvec[i][0] * errorvec[i][0] +
                        errorvec[i][1] * errorvec[i][1]
                );
                
                pixels += Math.abs( Math.round(projection[i][0]) - Math.round(imagePoints[i].x) ) +
                Math.abs( Math.round(projection[i][1]) - Math.round(imagePoints[i].y) );
                
                if (Math.abs(errorvec[i][0]) > maximum){
                        maximum = Math.abs(errorvec[i][0]);
                }
                if (Math.abs(errorvec[i][1]) > maximum){
                        maximum = Math.abs(errorvec[i][1]);
                }
        }
        
        return {euclidean: euclidean / np, pixels: pixels, maximum: maximum};
};

POS.pseudoInverse = function(a, n, b){
        var w = [], v = [[],[],[]], s = [[],[],[]],
        wmax = 0.0, cn = 0,
        i, j, k;
        
        SVD.svdcmp(a, n, 3, w, v);
        
        for (i = 0; i < 3; ++ i){
                if (w[i] > wmax){
                        wmax = w[i];
                }
        }
        
        wmax *= 0.01;
        
        for (i = 0; i < 3; ++ i){
                if (w[i] < wmax){
                        w[i] = 0.0;
                }
        }
        
        for (j = 0; j < 3; ++ j){
                if (0.0 === w[j]){
                        ++ cn;
                        for (k = j; k < 2; ++ k){
                                for (i = 0; i < n; ++ i){
                                        a[i][k] = a[i][k + 1];
                                }
                                for (i = 0; i < 3; ++ i){
                                        v[i][k] = v[i][k + 1];
                                }
                        }
                }
        }
        
        for (j = 0; j < 2; ++ j){
                if (0.0 === w[j]){
                        w[j] = w[j + 1];
                }
        }
        
        for (i = 0; i < 3; ++ i){
                for (j = 0; j < 3 - cn; ++ j){
                        s[i][j] = v[i][j] / w[j];
                }
        }
        
        for (i = 0; i < 3; ++ i){
                for (j = 0; j < n; ++ j){
                        b[i][j] = 0.0;
                        for (k = 0; k < 3 - cn; ++ k){
                                b[i][j] += s[i][k] * a[j][k];
                        }
                }
        }
};

POS.Pose = function(error1, rotation1, translation1, error2, rotation2, translation2){
        this.bestError = error1;
        this.bestRotation = rotation1;
        this.bestTranslation = translation1;
        this.alternativeError = error2;
        this.alternativeRotation = rotation2;
        this.alternativeTranslation = translation2;
};
/*
Copyright (c) 2012 Juan Mellado

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

/*
References:
- "Numerical Recipes in C - Second Edition"
  http://www.nr.com/
*/

var SVD = SVD || {};

SVD.svdcmp = function(a, m, n, w, v){
  var flag, i, its, j, jj, k, l, nm,
      anorm = 0.0, c, f, g = 0.0, h, s, scale = 0.0, x, y, z, rv1 = [];
      
  //Householder reduction to bidiagonal form
  for (i = 0; i < n; ++ i){
    l = i + 1;
    rv1[i] = scale * g;
    g = s = scale = 0.0;
    if (i < m){
      for (k = i; k < m; ++ k){
        scale += Math.abs( a[k][i] );
      }
      if (0.0 !== scale){
        for (k = i; k < m; ++ k){
          a[k][i] /= scale;
          s += a[k][i] * a[k][i];
        }
        f = a[i][i];
        g = -SVD.sign( Math.sqrt(s), f );
        h = f * g - s;
        a[i][i] = f - g;
        for (j = l; j < n; ++ j){
          for (s = 0.0, k = i; k < m; ++ k){
            s += a[k][i] * a[k][j];
          }
          f = s / h;
          for (k = i; k < m; ++ k){
            a[k][j] += f * a[k][i];
          }
        }
        for (k = i; k < m; ++ k){
          a[k][i] *= scale;
        }
      }
    }
    w[i] = scale * g;
    g = s = scale = 0.0;
    if ( (i < m) && (i !== n - 1) ){
      for (k = l; k < n; ++ k){
        scale += Math.abs( a[i][k] );
      }
      if (0.0 !== scale){
        for (k = l; k < n; ++ k){
          a[i][k] /= scale;
          s += a[i][k] * a[i][k];
        }
        f = a[i][l];
        g = -SVD.sign( Math.sqrt(s), f );
        h = f * g - s;
        a[i][l] = f - g;
        for (k = l; k < n; ++ k){
          rv1[k] = a[i][k] / h;
        }
        for (j = l; j < m; ++ j){
          for (s = 0.0, k = l; k < n; ++ k){
            s += a[j][k] * a[i][k];
          }
          for (k = l; k < n; ++ k){
            a[j][k] += s * rv1[k];
          }
        }
        for (k = l; k < n; ++ k){
          a[i][k] *= scale;
        }
      }
    }
    anorm = Math.max(anorm, ( Math.abs( w[i] ) + Math.abs( rv1[i] ) ) );
  }

  //Acumulation of right-hand transformation
  for (i = n - 1; i >= 0; -- i){
    if (i < n - 1){
      if (0.0 !== g){
        for (j = l; j < n; ++ j){
          v[j][i] = ( a[i][j] / a[i][l] ) / g;
        }
        for (j = l; j < n; ++ j){
          for (s = 0.0, k = l; k < n; ++ k){
            s += a[i][k] * v[k][j];
          }
          for (k = l; k < n; ++ k){
            v[k][j] += s * v[k][i];
          }
        }
      }
      for (j = l; j < n; ++ j){
        v[i][j] = v[j][i] = 0.0;
      }
    }
    v[i][i] = 1.0;
    g = rv1[i];
    l = i;
  }

  //Acumulation of left-hand transformation
  for (i = Math.min(n, m) - 1; i >= 0; -- i){
    l = i + 1;
    g = w[i];
    for (j = l; j < n; ++ j){
      a[i][j] = 0.0;
    }
    if (0.0 !== g){
      g = 1.0 / g;
      for (j = l; j < n; ++ j){
        for (s = 0.0, k = l; k < m; ++ k){
          s += a[k][i] * a[k][j];
        }
        f = (s / a[i][i]) * g;
        for (k = i; k < m; ++ k){
          a[k][j] += f * a[k][i];
        }
      }
      for (j = i; j < m; ++ j){
        a[j][i] *= g;
      }
    }else{
        for (j = i; j < m; ++ j){
          a[j][i] = 0.0;
        }
    }
    ++ a[i][i];
  }

  //Diagonalization of the bidiagonal form
  for (k = n - 1; k >= 0; -- k){
    for (its = 1; its <= 30; ++ its){
      flag = true;
      for (l = k; l >= 0; -- l){
        nm = l - 1;
        if ( Math.abs( rv1[l] ) + anorm === anorm ){
          flag = false;
          break;
        }
        if ( Math.abs( w[nm] ) + anorm === anorm ){
          break;
        }
      }
      if (flag){
        c = 0.0;
        s = 1.0;
        for (i = l; i <= k; ++ i){
          f = s * rv1[i];
          if ( Math.abs(f) + anorm === anorm ){
            break;
          }
          g = w[i];
          h = SVD.pythag(f, g);
          w[i] = h;
          h = 1.0 / h;
          c = g * h;
          s = -f * h;
          for (j = 1; j <= m; ++ j){
            y = a[j][nm];
            z = a[j][i];
            a[j][nm] = y * c + z * s;
            a[j][i] = z * c - y * s;
          }
        }
      }

      //Convergence
      z = w[k];
      if (l === k){
        if (z < 0.0){
          w[k] = -z;
          for (j = 0; j < n; ++ j){
            v[j][k] = -v[j][k];
          }
        }
        break;
      }

      if (30 === its){
        return false;
      }

      //Shift from bottom 2-by-2 minor
      x = w[l];
      nm = k - 1;
      y = w[nm];
      g = rv1[nm];
      h = rv1[k];
      f = ( (y - z) * (y + z) + (g - h) * (g + h) ) / (2.0 * h * y);
      g = SVD.pythag( f, 1.0 );
      f = ( (x - z) * (x + z) + h * ( (y / (f + SVD.sign(g, f) ) ) - h) ) / x;

      //Next QR transformation
      c = s = 1.0;
      for (j = l; j <= nm; ++ j){
        i = j + 1;
        g = rv1[i];
        y = w[i];
        h = s * g;
        g = c * g;
        z = SVD.pythag(f, h);
        rv1[j] = z;
        c = f / z;
        s = h / z;
        f = x * c + g * s;
        g = g * c - x * s;
        h = y * s;
        y *= c;
        for (jj = 0; jj < n; ++ jj){
          x = v[jj][j];
          z = v[jj][i];
          v[jj][j] = x * c + z * s;
          v[jj][i] = z * c - x * s;
        }
        z = SVD.pythag(f, h);
        w[j] = z;
        if (0.0 !== z){
          z = 1.0 / z;
          c = f * z;
          s = h * z;
        }
        f = c * g + s * y;
        x = c * y - s * g;
        for (jj = 0; jj < m; ++ jj){
          y = a[jj][j];
          z = a[jj][i];
          a[jj][j] = y * c + z * s;
          a[jj][i] = z * c - y * s;
        }
      }
      rv1[l] = 0.0;
      rv1[k] = f;
      w[k] = x;
    }
  }

  return true;
};

SVD.pythag = function(a, b){
  var at = Math.abs(a), bt = Math.abs(b), ct;

  if (at > bt){
    ct = bt / at;
    return at * Math.sqrt(1.0 + ct * ct);
  }
    
  if (0.0 === bt){
    return 0.0;
  }

  ct = at / bt;
  return bt * Math.sqrt(1.0 + ct * ct);
};

SVD.sign = function(a, b){
  return b >= 0.0? Math.abs(a): -Math.abs(a);
};
var THREEx = THREEx || {}

THREEx.ArucoContext = function(parameters){
	// handle default parameters
	parameters = parameters || {}
	this.parameters = {
		// debug - true if one should display artoolkit debug canvas, false otherwise
		debug: parameters.debug !== undefined ? parameters.debug : false,
		// resolution of at which we detect pose in the source image
		canvasWidth: parameters.canvasWidth !== undefined ? parameters.canvasWidth : 640,
		canvasHeight: parameters.canvasHeight !== undefined ? parameters.canvasHeight : 480,
	}


        this.canvas = document.createElement('canvas');
                
        this.detector = new AR.Detector()
        
        // setup THREEx.ArucoDebug if needed
        this.debug = null
        if( parameters.debug == true ){
                this.debug = new THREEx.ArucoDebug(this)
        }
	
	// honor parameters.canvasWidth/.canvasHeight
	this.setSize(this.parameters.canvasWidth, this.parameters.canvasHeight)
}

THREEx.ArucoContext.prototype.setSize = function (width, height) {
        this.canvas.width = width
        this.canvas.height = height
        if( this.debug !== null ){
                this.debug.setSize(width, height)
        }
}

THREEx.ArucoContext.prototype.detect = function (videoElement) {
	var _this = this
        var canvas = this.canvas
        
        // get imageData from videoElement
        var context = canvas.getContext('2d');
        context.drawImage(videoElement, 0, 0, canvas.width, canvas.height);
        var imageData = context.getImageData(0, 0, canvas.width, canvas.height);
        
        // detect markers in imageData
        var detectedMarkers = this.detector.detect(imageData);
	return detectedMarkers
};

/**
 * crappy function to update a object3d with a detectedMarker - super crappy
 */
THREEx.ArucoContext.prototype.updateObject3D = function(object3D, arucoPosit, markerSize, detectedMarker){
        var markerCorners = detectedMarker.corners;
        var canvas = this.canvas

        // convert the corners
        var poseCorners = new Array(markerCorners.length)
        for (var i = 0; i < markerCorners.length; ++ i){
                var markerCorner = markerCorners[i];        
                poseCorners[i] = {
                        x:  markerCorner.x - (canvas.width / 2),
                        y: -markerCorner.y + (canvas.height/ 2)
                }
        }
        
        // estimate pose from corners
        var pose = arucoPosit.pose(poseCorners);


	var rotation    = pose.bestRotation
	var translation = pose.bestTranslation
	
        object3D.position.x =  translation[0];
        object3D.position.y =  translation[1];
        object3D.position.z = -translation[2];
        
        object3D.rotation.x = -Math.asin(-rotation[1][2]);
        object3D.rotation.y = -Math.atan2(rotation[0][2], rotation[2][2]);
        object3D.rotation.z =  Math.atan2(rotation[1][0], rotation[1][1]);
        
        object3D.scale.x = markerSize;
        object3D.scale.y = markerSize;
        object3D.scale.z = markerSize;
}
var THREEx	= THREEx || {};


//////////////////////////////////////////////////////////////////////////////
//		monkey patch AR.Detector
//////////////////////////////////////////////////////////////////////////////

AR.Detector.prototype.detect = function(image){
	var opts = this.datGUIOptions

        CV.grayscale(image, this.grey);
        CV.adaptiveThreshold(this.grey, this.thres, opts.adaptativeThreshold.kernelSize, opts.adaptativeThreshold.threshold);
        
        this.contours = CV.findContours(this.thres, this.binary);
        
        this.candidates = this.findCandidates(this.contours, image.width * opts.candidates.minSize, opts.candidates.epsilon, opts.candidates.minLength);
        this.candidates = this.clockwiseCorners(this.candidates);
        this.candidates = this.notTooNear(this.candidates, opts.notTooNear.minDist);
        
        return this.findMarkers(this.grey, this.candidates, opts.findMarkers.warpSize);
};

// make names explicits - make unit explicit too
AR.Detector.prototype.datGUIOptions = {
	adaptativeThreshold : {
		kernelSize: 2,
		threshold: 7,
	},
	candidates: {
		minSize: 0.20,
		epsilon: 0.05,
		minLength: 10,
	},
	notTooNear : {
		minDist: 10,
	},
	findMarkers : {
		warpSize: 49,
	}
}

// see https://github.com/jeromeetienne/threex.geometricglow/blob/master/threex.atmospherematerialdatgui.js

THREEx.addArucoDatGui	= function(arucoContext, datGui){
	var datGUIOptions = arucoContext.detector.datGUIOptions
	var options  = {
		resolution: '640x480',
	}
	var onChange = function(){
		// honor option resolution
		var matches = options.resolution.match(/(\d+)x(\d+)/)
		var width = parseInt(matches[1])
		var height = parseInt(matches[2])
		arucoContext.setSize(width, height)
	}
	onChange();

	datGui.add( options, 'resolution', [ '320x240', '640x480' ]).onChange( onChange )
	
	var folder = datGui.addFolder('Adaptative Threshold')
	folder.open()
	folder.add( arucoContext.detector.datGUIOptions.adaptativeThreshold, 'kernelSize').min(0).step(1)
		.onChange( onChange )
	folder.add( arucoContext.detector.datGUIOptions.adaptativeThreshold, 'threshold').min(0).step(1)
		.onChange( onChange )
	
	var folder = datGui.addFolder('Candidates')
	folder.open()
	folder.add( arucoContext.detector.datGUIOptions.candidates, 'minSize').min(0).max(1)
		.onChange( onChange )
	folder.add( arucoContext.detector.datGUIOptions.candidates, 'epsilon').min(0)
		.onChange( onChange )
	folder.add( arucoContext.detector.datGUIOptions.candidates, 'minLength').min(0).step(1)
		.onChange( onChange )

	var folder = datGui.addFolder('notTooNear')
	folder.open()
	folder.add( arucoContext.detector.datGUIOptions.notTooNear, 'minDist').min(0).step(1)
		.onChange( onChange )
		
	var folder = datGui.addFolder('findMarkers')
	folder.open()
	folder.add( arucoContext.detector.datGUIOptions.findMarkers, 'warpSize').min(0).step(1)
		.onChange( onChange )
}
var THREEx = THREEx || {}

THREEx.ArucoDebug = function(arucoContext){
	this.arucoContext = arucoContext

// TODO to rename canvasElement into canvas
	this.canvasElement = document.createElement('canvas');
	this.canvasElement.width = this.arucoContext.canvas.width
	this.canvasElement.height = this.arucoContext.canvas.height
}

THREEx.ArucoDebug.prototype.setSize = function (width, height) {
        if( this.canvasElement.width !== width )	this.canvasElement.width = width
        if( this.canvasElement.height !== height )	this.canvasElement.height = height
}


THREEx.ArucoDebug.prototype.clear = function(){
	var canvas = this.canvasElement
	var context = canvas.getContext('2d');
	context.clearRect(0,0,canvas.width, canvas.height)
	
}
	
THREEx.ArucoDebug.prototype.drawContoursContours = function(){
	var contours = this.arucoContext.detector.contours
	var canvas = this.canvasElement
	this.drawContours(contours, 0, 0, canvas.width, canvas.height, function(hole){
		return hole? "magenta": "blue"
	})
}

THREEx.ArucoDebug.prototype.drawContoursPolys = function(){
	var contours = this.arucoContext.detector.polys
	var canvas = this.canvasElement
	this.drawContours(contours, 0, 0, canvas.width, canvas.height, function(){
		return 'green'
	})
}


THREEx.ArucoDebug.prototype.drawContoursCandidates = function(){
	var contours = this.arucoContext.detector.candidates
	var canvas = this.canvasElement
	this.drawContours(contours, 0, 0, canvas.width, canvas.height, function(){
		return 'red'
	})
}

THREEx.ArucoDebug.prototype.drawContours = function(contours, x, y, width, height, fn){
	var i = contours.length, j, contour, point;
	var canvas = this.canvasElement
	var context = canvas.getContext('2d');
	
	context.save();
	while(i --){
		contour = contours[i];
		context.strokeStyle = fn(contour.hole);
		context.beginPath();
		for (j = 0; j < contour.length; ++ j){
			point = contour[j];
			context.moveTo(x + point.x, y + point.y);
			point = contour[(j + 1) % contour.length];
			context.lineTo(x + point.x, y + point.y);
		}
		
		context.stroke();
		context.closePath();
	}
	context.restore();
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////    

THREEx.ArucoDebug.prototype.drawDetectorGrey = function(){
	var cvImage = arucoContext.detector.grey
        this.drawCVImage( cvImage )
}

THREEx.ArucoDebug.prototype.drawDetectorThreshold = function(){
	var cvImage = arucoContext.detector.thres
        this.drawCVImage( cvImage )
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////
THREEx.ArucoDebug.prototype.drawCVImage = function(cvImage){
	var detector = this.arucoContext.detector

	var canvas = this.canvasElement
	var context = canvas.getContext('2d');

	var imageData = context.createImageData(canvas.width, canvas.height);
	this.copyCVImage2ImageData(cvImage, imageData)
	context.putImageData( imageData, 0, 0);
}


THREEx.ArucoDebug.prototype.copyCVImage2ImageData = function(cvImage, imageData){
	var i = cvImage.data.length, j = (i * 4) + 3;
	
	while(i --){
		imageData.data[j -= 4] = 255;
		imageData.data[j - 1] = imageData.data[j - 2] = imageData.data[j - 3] = cvImage.data[i];
	}
	
	return imageData;
};

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////
THREEx.ArucoDebug.prototype.drawVideo = function(videoElement){
	var canvas = this.canvasElement
	var context = canvas.getContext('2d');
	context.drawImage(videoElement, 0, 0, canvas.width, canvas.height);
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////
THREEx.ArucoDebug.prototype.drawMarkerIDs = function(markers){
	var canvas = this.canvasElement
	var context = canvas.getContext('2d');
	var corners, corner, x, y, i, j;
	
	context.save();
	context.strokeStyle = "blue";
	context.lineWidth = 1;
	
	for (i = 0; i !== markers.length; ++ i){
		corners = markers[i].corners;
		
		x = Infinity;
		y = Infinity;
		
		for (j = 0; j !== corners.length; ++ j){
			corner = corners[j];
			
			x = Math.min(x, corner.x);
			y = Math.min(y, corner.y);
		}
		context.strokeText(markers[i].id, x, y)
	}
	context.restore();
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////
THREEx.ArucoDebug.prototype.drawMarkerCorners = function(markers){
	var canvas = this.canvasElement
        var corners, corner, i, j;
        var context = canvas.getContext('2d');
	context.save();
        context.lineWidth = 3;
        
        for (i = 0; i < markers.length; ++ i){
                corners = markers[i].corners;
                
                context.strokeStyle = 'red';
                context.beginPath();
                
                for (j = 0; j < corners.length; ++ j){
                        corner = corners[j];
                        context.moveTo(corner.x, corner.y);
                        corner = corners[(j + 1) % corners.length];
                        context.lineTo(corner.x, corner.y);
                }
                
                context.stroke();
                context.closePath();
                
                context.strokeStyle = 'green';
                context.strokeRect(corners[0].x - 2, corners[0].y - 2, 4, 4);
        }
	context.restore();

}
var THREEx = THREEx || {}

THREEx.ArucoMarkerGenerator = function(){
	
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////
THREEx.ArucoMarkerGenerator.createSVG = function(markerId, svgSize){
	var domElement = document.createElement('div');
	domElement.innerHTML = new ArucoMarker(markerId).toSVG(svgSize);	
	return domElement
}

THREEx.ArucoMarkerGenerator.createImage = function(markerId, width){
	// create canvas
	var canvas = this.createCanvas(markerId, width)
	var imageURL = canvas.toDataURL()

	// create imageElement
	var imageElement = document.createElement('img');
	imageElement.src = imageURL

	// return imageElement
	return imageElement;
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////
THREEx.ArucoMarkerGenerator.createCanvas = function(markerId, width){
	var canvas = document.createElement('canvas');
	var context = canvas.getContext('2d')
	canvas.width = width
	canvas.height = width

	var arucoMarker = new ArucoMarker(markerId)
	var marker = arucoMarker.markerMatrix()
	
	var margin = canvas.width*0.1
	var innerW = width-margin*2
	var squareW = innerW/7
	
	context.fillStyle = 'white'
	context.fillRect(0, 0, canvas.width, canvas.height)
	context.fillStyle = 'black'
	context.fillRect(margin, margin, canvas.width-margin*2, canvas.height-margin*2)

	for(var y = 0; y < 5; y++){
		for(var x = 0; x < 5; x++){
			if (marker[x][y] !== 1) continue
			context.fillStyle = 'white'
			context.fillRect(margin+(x+1)*squareW, margin+(y+1)*squareW, squareW+1, squareW+1)
		}
	}
	
	return canvas
}
/*
 * Copyright 2017 Google Inc. All Rights Reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
* @namespace
*/
var THREE = THREE || require("three");

/**
* The WebAR namespace inside the THREE namespace. This namespace includes different utilities to be able to handle WebAR functionalities on top of the ThreeJS framework/engine in an easier way.
* 
* NOTE: As a coding standard all the variables/functions starting with an underscore '_' are considered as private and should not be used/called outside of the namespace/class they are defined in.
* @namespace
*/
THREE.WebAR = {};

THREE.WebAR.MAX_FLOAT32_VALUE = 3.4028e38;

/**
* A class that allows to manage the point cloud acquisition and representation in ThreeJS. A buffer geometry is generated to represent the point cloud. The point cloud is provided using a VRDisplay instance that shows the capability to do so. The point cloud is actually exposed using a TypedArray. The array includes 3 values per point in the cloud. There are 2 ways of exposing this array:
* 1.- Using a new TypedArray for every frame/update. The advantage is that the TypedArray is always of the correct size depending on the number of points detected. The disadvantage is that there is a performance hit from the creation and copying of the array (and future garbage collection).
* 2.- Using the same reference to a single TypedArray. The advantage is that the performance is as good as it can get with no creation/destruction and copy penalties. The disadvantage is that the size of the array is the biggest possible point cloud provided by the underlying hardware. The non used values are filled with THREE.WebAR.MAX_FLOAT32_VALUE.
* @constructor
* @param {window.VRDisplay} vrDisplay The reference to the VRDisplay instance that is capable of providing the point cloud.
*
* NOTE: The buffer geometry that can be retrieved from instances of this class can be used along with THREE.Point and THREE.PointMaterial to render the point cloud using points. This class represents the vertices colors with the color white.
*/
THREE.WebAR.VRPointCloud = function(vrDisplay) {

  this._vrDisplay = vrDisplay;

  this._numberOfPointsInLastPointCloud = 0;

  this._bufferGeometry = new THREE.BufferGeometry();
  this._bufferGeometry.frustumCulled = false;

  var positions = null;
  if (vrDisplay) {
    this._pointCloud = new VRPointCloud();
    vrDisplay.getPointCloud(this._pointCloud, false, 0, false);
    positions = this._pointCloud.points;
  }
  else {
    positions = new Float32Array(
      [-1, 1, -2, 1, 1, -2, 1, -1, -2, -1, -1, -2 ]);
  }
  var colors = new Float32Array( positions.length );

  var color = new THREE.Color();

  for ( var i = 0; i < colors.length; i += 3 ) {
    if (vrDisplay) {
      positions[ i ]     = THREE.WebAR.MAX_FLOAT32_VALUE;
      positions[ i + 1 ] = THREE.WebAR.MAX_FLOAT32_VALUE;
      positions[ i + 2 ] = THREE.WebAR.MAX_FLOAT32_VALUE;
    }
    color.setRGB( 1, 1, 1 );
    colors[ i ]     = color.r;
    colors[ i + 1 ] = color.g;
    colors[ i + 2 ] = color.b;
  }

  this._positions = new THREE.BufferAttribute( positions, 3 );
  this._bufferGeometry.addAttribute( 'position', this._positions );
  this._colors = new THREE.BufferAttribute( colors, 3 );
  this._bufferGeometry.addAttribute( 'color', this._colors );

  this._bufferGeometry.computeBoundingSphere();

  return this;
};

/**
* Returns the THREE.BufferGeometry instance that represents the points in the pont cloud.
* @return {THREE.BufferGeometry} The buffer geometry that represents the points in the point cloud.
*
* NOTE: A possible way to render the point cloud could be to use the THREE.BufferGeometry instance returned by this method along with THREE.Points and THREE.PointMaterial.

  var pointCloud = new THREE.VRPointCloud(vrDisplay, true);
  var material = new THREE.PointsMaterial( { size: 0.01, vertexColors: THREE.VertexColors } );
  var points = new THREE.Points( pointCloud.getBufferGeometry(), material );
*/
THREE.WebAR.VRPointCloud.prototype.getBufferGeometry = function() {
  return this._bufferGeometry;
};

/**
* Update the point cloud. The THREE.BufferGeometry that this class provides will automatically be updated with the point cloud retrieved by the underlying hardware.
* @param {boolean} updateBufferGeometry A flag to indicate if the underlying THREE.BufferGeometry should also be updated. Updating the THREE.BufferGeometry is very cost innefficient so it is better to only do it if necessary (only if the buffer geometry is going to be rendered for example). If this flag is set to false,  then the underlying point cloud is updated but not buffer geometry that represents it. Updating the point cloud is important to be able to call functions that operate with it, like the getPickingPointAndPlaneInPointCloud function.
* @param {number} pointsToSkip A positive integer from 0-N that specifies the number of points to skip when returning the point cloud. If the updateBufferGeometry flag is activated (true) then this parameter allows to specify the density of the point cloud. A values of 0 means all the detected points need to be returned. A number of 1 means that 1 every other point needs to be skipped and thus, half of the detected points will be retrieved, and so on. If the parameter is not specified, 0 is considered.
* @param {boolean} transformPoints A flag to specify if the points should be transformed in the native side or not. If the points are not transformed in the native side, they should be transformed in the JS side (in a vertex shader for example).
*/
THREE.WebAR.VRPointCloud.prototype.update = function(updateBufferGeometry, pointsToSkip, transformPoints) {
  if (!this._vrDisplay) return;
  this._vrDisplay.getPointCloud(this._pointCloud, 
    !updateBufferGeometry, typeof(pointsToSkip) === "number" ? 
      pointsToSkip : 0, !!transformPoints);
  if (!updateBufferGeometry) return;
  if (this._pointCloud.numberOfPoints > 0) {
    this._positions.needsUpdate = true;
  }
};

/**
* Provides an index based on an orientation angle. The corresponding index to the angle is:
* orientation =   0 <-> index = 0
* orientation =  90 <-> index = 1
* orientation = 180 <-> index = 2
* orientation = 270 <-> index = 3
* @param {number} orientation The orientation angle. Values are: 0, 90, 180, 270.
* @return {number} An index from 0 to 3 that corresponds to the give orientation angle.
*/
THREE.WebAR.getIndexFromOrientation = function(orientation) {
  var index = 0;
  switch (orientation) {
    case 90:
      index = 1;
      break;
    case 180:
      index = 2;
      break;
    case 270:
      index = 3;
      break;
    default:
      index = 0;
      break;
  }
  return index;
};

/**
* Returns an index that is based on the combination between the display orientation and the see through camera orientation. This index will always be device natural orientation independent.
* @param {VRDisplay} vrDisplay The VRDisplay that is capable to provide a correct VRSeeThroughCamera instance.
* @return {number} The index from 0 to 3 that represents the combination of the device and see through camera orientations.
*/
THREE.WebAR.getIndexFromScreenAndSeeThroughCameraOrientations = function(vrDisplay) {
  var screenOrientation = screen.orientation.angle;
  var seeThroughCamera = vrDisplay ? vrDisplay.getSeeThroughCamera() : null;
  var seeThroughCameraOrientation = seeThroughCamera ? 
    seeThroughCamera.orientation : 0;
  var seeThroughCameraOrientationIndex = 
    THREE.WebAR.getIndexFromOrientation(seeThroughCameraOrientation);
  var screenOrientationIndex = 
    THREE.WebAR.getIndexFromOrientation(screenOrientation);
  ret = screenOrientationIndex - seeThroughCameraOrientationIndex;
  if (ret < 0) {
    ret += 4;
  }
  return (ret % 4);
}

/**
* A utility function that helps create a THREE.Mesh instance to be able to show the VRSeeThroughCamera as a background quad with the correct texture coordinates and a THREE.VideoTexture instance.
* @param {VRDisplay} vrDisplay The VRDisplay that is capable to provide a correct VRSeeThroughCamera instance. It can be null/undefined.
* @param {string} fallbackVideoPath The path to a video in case there is no vrDisplay. If this parameter is not provided, a default video at path "../resources/sintel.webm" will be used.
* @return {THREE.Mesh} The THREE.Mesh instance that represents a quad to be able to present the see through camera.
*/
THREE.WebAR.createVRSeeThroughCameraMesh = function(vrDisplay,
  fallbackVideoPath) {
  var video;
  var geometry = new THREE.BufferGeometry();

  // The camera or video and the texture coordinates may vary depending if the vrDisplay has the see through camera.
  if (vrDisplay) {
    var seeThroughCamera = vrDisplay.getSeeThroughCamera();

    if (!seeThroughCamera) 
      throw "ERROR: Could not get the see through camera!";
    
    video = seeThroughCamera;
    // HACK: Needed to tell the THREE.VideoTexture that the video is ready and
    // that the texture needs update.
    video.readyState = 2;
    video.HAVE_CURRENT_DATA = 2;

    // All the possible texture coordinates for the 4 possible orientations.
    // The ratio between the texture size and the camera size is used in order
    // to be compatible with the YUV to RGB conversion option (not recommended
    // but still available).
    var u = seeThroughCamera.width / seeThroughCamera.textureWidth;
    var v = seeThroughCamera.height / seeThroughCamera.textureHeight;
    geometry.WebAR_textureCoords = [
      new Float32Array([ 
        0.0, 0.0,
        0.0, v,
        u, 0.0,
        u, v
      ]),
      new Float32Array([ 
        u, 0.0,
        0.0, 0.0,
        u, v,
        0.0, v
      ]),
      new Float32Array([
        u, v,
        u, 0.0,
        0.0, v,
        0.0, 0.0
      ]),
      new Float32Array([
        0.0, v,
        u, v,
        0.0, 0.0,
        u, 0.0
      ])
    ];
  }
  else {
    var video = document.createElement("video");
    video.src = typeof(fallbackVideoPath) === "string" ? 
      fallbackVideoPath : "../../resources/videos/sintel.webm";
    video.play();

    // All the possible texture coordinates for the 4 possible orientations.
    geometry.WebAR_textureCoords = [
      new Float32Array([0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0]),
      new Float32Array([1.0, 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0]),
      new Float32Array([1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0]),
      new Float32Array([0.0, 1.0, 1.0, 1.0, 0.0, 0.0, 1.0, 0.0])
    ];
  }

  geometry.addAttribute("position", new THREE.BufferAttribute( 
    new Float32Array([
    -1.0,  1.0, 0.0, 
    -1.0, -1.0, 0.0,
     1.0,  1.0, 0.0, 
     1.0, -1.0, 0.0
  ]), 3));

  geometry.setIndex(new THREE.BufferAttribute(
    new Uint16Array([0, 1, 2, 2, 1, 3]), 1));
  geometry.WebAR_textureCoordIndex = 
    THREE.WebAR.getIndexFromScreenAndSeeThroughCameraOrientations(vrDisplay);
  var textureCoords = 
    geometry.WebAR_textureCoords[geometry.WebAR_textureCoordIndex];

  geometry.addAttribute("uv", new THREE.BufferAttribute(
    new Float32Array(textureCoords), 2 ));
  geometry.computeBoundingSphere();

  var videoTexture = new THREE.VideoTexture(video);
  videoTexture.minFilter = THREE.NearestFilter;
  videoTexture.magFilter = THREE.NearestFilter;
  videoTexture.format = THREE.RGBFormat;
  videoTexture.flipY = false;

  // The material is different if the see through camera is provided inside the vrDisplay or not.
  var material;
  if (vrDisplay) {
    var vertexShaderSource = [
      'attribute vec3 position;',
      'attribute vec2 uv;',
      '',
      'uniform mat4 modelViewMatrix;',
      'uniform mat4 projectionMatrix;',
      '',
      'varying vec2 vUV;',
      '',
      'void main(void) {',
      '    gl_Position = projectionMatrix * modelViewMatrix * vec4(position, 1.0);',
      '    vUV = uv;',
      '}'
    ];

    var fragmentShaderSource = [
      '#extension GL_OES_EGL_image_external : require',
      'precision mediump float;',
      '',
      'varying vec2 vUV;',
      '',
      'uniform samplerExternalOES map;',
      '',
      'void main(void) {',
      '   gl_FragColor = texture2D(map, vUV);',
      '}'
    ];

    material = new THREE.RawShaderMaterial({
      uniforms: {
        map: {type: 't', value: videoTexture},
      },
      vertexShader: vertexShaderSource.join( '\r\n' ),
      fragmentShader: fragmentShaderSource.join( '\r\n' ),
      side: THREE.DoubleSide,
    });
  }
  else {
    material = new THREE.MeshBasicMaterial( 
      {color: 0xFFFFFF, side: THREE.DoubleSide, map: videoTexture } );
  }

  var mesh = new THREE.Mesh(geometry, material);

  return mesh;
};

/**
* Updates the camera mesh texture coordinates depending on the orientation of the current screen and the see through camera.
* @param {VRDisplay} vrDisplay The VRDisplay that holds the VRSeeThroughCamera. If could be null/undefined.
* @param {THREE.Mesh} cameraMesh The ThreeJS mesh that represents the camera quad that needs to be updated/rotated depending on the device and camera orientations. This instance should have been created by calling THREE.WebAR.createVRSeeThroughCameraMesh.
*/
THREE.WebAR.updateCameraMeshOrientation = function(vrDisplay, cameraMesh) {
  var textureCoordIndex = THREE.WebAR.getIndexFromScreenAndSeeThroughCameraOrientations(vrDisplay);
  if (textureCoordIndex != cameraMesh.geometry.WebAR_textureCoordIndex) {
    var uvs = cameraMesh.geometry.getAttribute("uv");
    var textureCoords = 
      cameraMesh.geometry.WebAR_textureCoords[textureCoordIndex];
    cameraMesh.geometry.WebAR_textureCoordIndex = textureCoordIndex;
    for (var i = 0; i < uvs.length; i++) {
      uvs.array[i] = textureCoords[i];
    }
    uvs.needsUpdate = true;
  }
};

/**
* A utility function to create a THREE.Camera instance with as frustum that is obtainer from the underlying vrdisplay see through camera information. This camera can be used to correctly render 3D objects on top of the underlying camera image.
* @param {VRDisplay} vrDisplay - The VRDisplay that is capable to provide a correct VRSeeThroughCamera instance in order to obtain the camera lens information and create the correct projection matrix/frustum. It could be null/undefined.
* @param {number} near The near plane value to be used to create the correct projection matrix frustum.
* @param {number} far The far plane value to be used to create the correct projection matrix frustum.
* @return {THREE.Camera} A camera instance to be used to correctly render a scene on top of the camera video feed.
*/
THREE.WebAR.createVRSeeThroughCamera = function(vrDisplay, near, far) {
  var camera = new THREE.PerspectiveCamera( 60, 
    window.innerWidth / window.innerHeight, near, far );
  if (vrDisplay) {
    THREE.WebAR.resizeVRSeeThroughCamera(vrDisplay, camera);
  }
  return camera;
};

/**
* Recalculate a camera projection matrix depending on the current device and see through camera orientation and specification.
* @param {VRDisplay} vrDisplay The VRDisplay that handles the see through camera.
* @param {THREE.Camera} camera The ThreeJS camera instance to update its projection matrix depending on the current device orientation and see through camera properties.
*/
THREE.WebAR.resizeVRSeeThroughCamera = function(vrDisplay, camera) {
  camera.aspect = window.innerWidth / window.innerHeight;
  if (vrDisplay) {
    var windowWidthBiggerThanHeight = window.innerWidth > window.innerHeight;
    var seeThroughCamera = vrDisplay.getSeeThroughCamera();
    if (seeThroughCamera) {
      var cameraWidthBiggerThanHeight = 
        seeThroughCamera.width > seeThroughCamera.height;
      var swapWidthAndHeight = 
        !(windowWidthBiggerThanHeight && cameraWidthBiggerThanHeight);

      var width = swapWidthAndHeight ? 
        seeThroughCamera.height : seeThroughCamera.width;
      var height = swapWidthAndHeight ? 
        seeThroughCamera.width : seeThroughCamera.height;
      var fx = swapWidthAndHeight ? 
        seeThroughCamera.focalLengthY : seeThroughCamera.focalLengthX;
      var fy = swapWidthAndHeight ? 
        seeThroughCamera.focalLengthX : seeThroughCamera.focalLengthY;
      var cx = swapWidthAndHeight ? 
        seeThroughCamera.pointY : seeThroughCamera.pointX;
      var cy = swapWidthAndHeight ? 
        seeThroughCamera.pointX : seeThroughCamera.pointY;

      var xscale = camera.near / fx;
      var yscale = camera.near / fy;

      var xoffset = (cx - (width / 2.0)) * xscale;
      // Color camera's coordinates has Y pointing downwards so we negate this term.
      var yoffset = -(cy - (height / 2.0)) * yscale;

      var left = xscale * -width / 2.0 - xoffset;
      var right = xscale * width / 2.0 - xoffset;
      var bottom = yscale * -height / 2.0 - yoffset;
      var top = yscale * height / 2.0 - yoffset;

      // camera.projectionMatrix.makeFrustum(
      //   left, right, bottom, top, camera.near, camera.far);

      camera.projectionMatrix.makePerspective(
        left, right, top, bottom, camera.near, camera.far);

      // Recalculate the fov as threejs is not doing it.
      camera.fov = THREE.Math.radToDeg(
        Math.atan((top * camera.zoom) / camera.near)) * 2.0;
    }
  }
  else {
    camera.updateProjectionMatrix();
  }
}

// Some precalculated private objects to avoid garbage collection
THREE.WebAR._worldUp = new THREE.Vector3(0.0, 1.0, 0.0);
THREE.WebAR._normalY = new THREE.Vector3();
THREE.WebAR._normalZ = new THREE.Vector3();
THREE.WebAR._rotationMatrix = new THREE.Matrix4();
THREE.WebAR._planeNormal = new THREE.Vector3();

THREE.WebAR.rotateObject3D = function(normal1, normal2, object3d) {
  if (normal1 instanceof THREE.Vector3 || normal1 instanceof THREE.Vector4) {
    THREE.WebAR._planeNormal.set(normal1.x, normal1.y, normal1.z);
  }
  else if (normal1 instanceof Float32Array) {
    THREE.WebAR._planeNormal.set(normal1[0], normal1[1], normal1[2]);
  }
  else {
    throw "Unknown normal1 type.";
  }
  if (normal2 instanceof THREE.Vector3 || normal2 instanceof THREE.Vector4) {
    THREE.WebAR._normalZ.set(normal2.x, normal2.y, normal2.z);
  }
  else if (normal1 instanceof Float32Array) {
    THREE.WebAR._normalZ.set(normal2[0], normal2[1], normal2[2]);
  }
  else {
    throw "Unknown normal2 type.";
  }
  THREE.WebAR._normalY.crossVectors(THREE.WebAR._planeNormal, 
    THREE.WebAR._normalZ).normalize();
  THREE.WebAR._rotationMatrix.elements[ 0] = THREE.WebAR._planeNormal.x;
  THREE.WebAR._rotationMatrix.elements[ 1] = THREE.WebAR._planeNormal.y;
  THREE.WebAR._rotationMatrix.elements[ 2] = THREE.WebAR._planeNormal.z;
  THREE.WebAR._rotationMatrix.elements[ 4] = THREE.WebAR._normalZ.x;
  THREE.WebAR._rotationMatrix.elements[ 5] = THREE.WebAR._normalZ.y;
  THREE.WebAR._rotationMatrix.elements[ 6] = THREE.WebAR._normalZ.z;
  THREE.WebAR._rotationMatrix.elements[ 8] = THREE.WebAR._normalY.x;
  THREE.WebAR._rotationMatrix.elements[ 9] = THREE.WebAR._normalY.y;
  THREE.WebAR._rotationMatrix.elements[10] = THREE.WebAR._normalY.z;
  object3d.quaternion.setFromRotationMatrix(THREE.WebAR._rotationMatrix);
};

/**
* Transform a given THREE.Object3D instance to be correctly oriented according to a given plane normal.
* @param {THREE.Vector3|THREE.Vector4|Float32Array} plane A vector that represents the normal of the plane to be used to orient the object3d.
* @param {THREE.Object3D} object3d The object3d to be transformed so it is oriented according to the given plane.
*/
THREE.WebAR.rotateObject3DWithPickingPlane = function(plane, object3d) {
  if (plane instanceof THREE.Vector3 || plane instanceof THREE.Vector4) {
    THREE.WebAR._planeNormal.set(plane.x, plane.y, plane.z);
  }
  else if (plane instanceof Float32Array) {
    THREE.WebAR._planeNormal.set(plane[0], plane[1], plane[2]);
  }
  else {
    throw "Unknown plane type.";
  }
  THREE.WebAR._normalY.set(0.0, 1.0, 0.0);
  var threshold = 0.5;
  if (Math.abs(THREE.WebAR._planeNormal.dot(THREE.WebAR._worldUp)) > 
    threshold) {
    THREE.WebAR._normalY.set(0.0, 0.0, 1.0);
  }
  THREE.WebAR._normalZ.crossVectors(THREE.WebAR._planeNormal, 
    THREE.WebAR._normalY).normalize();
  THREE.WebAR._normalY.crossVectors(THREE.WebAR._normalZ, 
    THREE.WebAR._planeNormal).normalize();
  THREE.WebAR._rotationMatrix.elements[ 0] = THREE.WebAR._planeNormal.x;
  THREE.WebAR._rotationMatrix.elements[ 1] = THREE.WebAR._planeNormal.y;
  THREE.WebAR._rotationMatrix.elements[ 2] = THREE.WebAR._planeNormal.z;
  THREE.WebAR._rotationMatrix.elements[ 4] = THREE.WebAR._normalY.x;
  THREE.WebAR._rotationMatrix.elements[ 5] = THREE.WebAR._normalY.y;
  THREE.WebAR._rotationMatrix.elements[ 6] = THREE.WebAR._normalY.z;
  THREE.WebAR._rotationMatrix.elements[ 8] = THREE.WebAR._normalZ.x;
  THREE.WebAR._rotationMatrix.elements[ 9] = THREE.WebAR._normalZ.y;
  THREE.WebAR._rotationMatrix.elements[10] = THREE.WebAR._normalZ.z;
  object3d.quaternion.setFromRotationMatrix(THREE.WebAR._rotationMatrix);
};

/**
* Transform a given THREE.Object3D instance to be correctly positioned according to a given point position.
* @param {THREE.Vector3|THREE.Vector4|Float32Array} point A vector that represents the position where the object3d should be positioned.
* @param {THREE.Object3D} object3d The object3d to be transformed so it is positioned according to the given point.
*/
THREE.WebAR.positionObject3DWithPickingPoint = function(point, object3d) {
  if (point instanceof THREE.Vector3 || point instanceof THREE.Vector4) {
    object3d.position.set(point.x, point.y, point.z);
  }
  else if (point instanceof Float32Array) {
    object3d.position.set(point[0], point[1], point[2]);
  }
  else {
    throw "Unknown point type.";
  }
};

/**
* Transform a given THREE.Object3D instance to be correctly positioned and oriented according to a given VRPickingPointAndPlane and a scale (half the size of the object3d for example).
* @param {VRPickingPointandPlane} pointAndPlane The point and plane retrieved using the VRDisplay.getPickingPointAndPlaneInPointCloud function.
* @param {THREE.Object3D} object3d The object3d to be transformed so it is positioned and oriented according to the given point and plane.
* @param {number} scale The value the object3d will be positioned in the direction of the normal of the plane to be correctly positioned. Objects usually have their position value referenced as the center of the geometry. In this case, positioning the object in the picking point would lead to have the object3d positioned in the plane, not on top of it. this scale value will allow to correctly position the object in the picking point and in the direction of the normal of the plane. Half the size of the object3d would be a correct value in this case.
*/
THREE.WebAR.positionAndRotateObject3DWithPickingPointAndPlaneInPointCloud = 
  function(pointAndPlane, object3d, scale) {
  THREE.WebAR.rotateObject3DWithPickingPlane(pointAndPlane.plane, object3d);
  THREE.WebAR.positionObject3DWithPickingPoint(pointAndPlane.point, object3d);
  object3d.position.add(THREE.WebAR._planeNormal.multiplyScalar(scale));
};

/**
* Transform a given THREE.Object3D instance to be correctly positioned and oriented according to an axis formed by 2 plane normals, a position and a scale (half the size of the object3d for example).
* @param {VRPickingPointandPlane} pointAndPlane The point and plane retrieved using the VRDisplay.getPickingPointAndPlaneInPointCloud function.
* @param {THREE.Object3D} object3d The object3d to be transformed so it is positioned and oriented according to the given point and plane.
* @param {number} scale The value the object3d will be positioned in the direction of the normal of the plane to be correctly positioned. Objects usually have their position value referenced as the center of the geometry. In this case, positioning the object in the picking point would lead to have the object3d positioned in the plane, not on top of it. this scale value will allow to correctly position the object in the picking point and in the direction of the normal of the plane. Half the size of the object3d would be a correct value in this case.
*/
THREE.WebAR.positionAndRotateObject3D = 
  function(position, normal1, normal2, object3d, scale) {
  THREE.WebAR.rotateObject3D(normal1, normal2, object3d);
  THREE.WebAR.positionObject3DWithPickingPoint(position, object3d);
  object3d.position.add(THREE.WebAR._planeNormal.multiplyScalar(scale));
};

// UMD
(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    define(['WebAR'], factory);
  } else if (typeof exports === 'object') {
    module.exports = factory();
  } else {
    root.WebAR = factory();
  }
}(this, function() {
    return THREE.WebAR;
}));
var THREEx = THREEx || {}

THREEx.ArBaseControls = function(object3d){
	this.id = THREEx.ArBaseControls.id++

	this.object3d = object3d
	this.object3d.matrixAutoUpdate = false;
	this.object3d.visible = false

	// Events to honor
	// this.dispatchEvent({ type: 'becameVisible' })
	// this.dispatchEvent({ type: 'markerVisible' })	// replace markerFound
	// this.dispatchEvent({ type: 'becameUnVisible' })
}

THREEx.ArBaseControls.id = 0

Object.assign( THREEx.ArBaseControls.prototype, THREE.EventDispatcher.prototype );

//////////////////////////////////////////////////////////////////////////////
//		Functions
//////////////////////////////////////////////////////////////////////////////
/**
 * error catching function for update()
 */
THREEx.ArBaseControls.prototype.update = function(){
	console.assert(false, 'you need to implement your own update')
}

/**
 * error catching function for name()
 */
THREEx.ArBaseControls.prototype.name = function(){
	console.assert(false, 'you need to implement your own .name()')
	return 'Not yet implemented - name()'
}
var THREEx = THREEx || {}

// TODO this is useless - prefere arjs-HitTesting.js

/**
 * - maybe support .onClickFcts in each object3d
 * - seems an easy light layer for clickable object
 * - up to 
 */
THREEx.ARClickability = function(sourceElement){
	this._sourceElement = sourceElement
	// Create cameraPicking
	var fullWidth = parseInt(sourceElement.style.width)
	var fullHeight = parseInt(sourceElement.style.height)
	this._cameraPicking = new THREE.PerspectiveCamera(42, fullWidth / fullHeight, 0.1, 100);	

console.warn('THREEx.ARClickability works only in modelViewMatrix')
console.warn('OBSOLETE OBSOLETE! instead use THREEx.HitTestingPlane or THREEx.HitTestingTango')
}

THREEx.ARClickability.prototype.onResize = function(){
	var sourceElement = this._sourceElement
	var cameraPicking = this._cameraPicking
	
	var fullWidth = parseInt(sourceElement.style.width)
	var fullHeight = parseInt(sourceElement.style.height)
	cameraPicking.aspect = fullWidth / fullHeight;
	cameraPicking.updateProjectionMatrix();
}

THREEx.ARClickability.prototype.computeIntersects = function(domEvent, objects){
	var sourceElement = this._sourceElement
	var cameraPicking = this._cameraPicking

	// compute mouse coordinatge with [-1,1]
	var eventCoords = new THREE.Vector3();
	eventCoords.x =   ( domEvent.layerX / parseInt(sourceElement.style.width)  ) * 2 - 1;
	eventCoords.y = - ( domEvent.layerY / parseInt(sourceElement.style.height) ) * 2 + 1;

	// compute intersections between eventCoords and pickingPlane
	var raycaster = new THREE.Raycaster();
	raycaster.setFromCamera( eventCoords, cameraPicking );
	var intersects = raycaster.intersectObjects( objects )
	
	return intersects
}

THREEx.ARClickability.prototype.update = function(){

}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////

THREEx.ARClickability.tangoPickingPointCloud = function(artoolkitContext, mouseX, mouseY){
	
// THIS IS CRAP!!!! use THREEx.HitTestingTango
	
	var vrDisplay = artoolkitContext._tangoContext.vrDisplay
        if (vrDisplay === null ) return null
        var pointAndPlane = vrDisplay.getPickingPointAndPlaneInPointCloud(mouseX, mouseY)
        if( pointAndPlane == null ) {
                console.warn('Could not retrieve the correct point and plane.')
                return null
        }
	
	// FIXME not sure what this is
	var boundingSphereRadius = 0.01	
	
	// the bigger the number the likeliest it crash chromium-webar

        // Orient and position the model in the picking point according
        // to the picking plane. The offset is half of the model size.
        var object3d = new THREE.Object3D
        THREE.WebAR.positionAndRotateObject3DWithPickingPointAndPlaneInPointCloud(
                pointAndPlane, object3d, boundingSphereRadius
        )
	object3d.rotateZ(-Math.PI/2)

	// return the result
	var result = {}
	result.position = object3d.position
	result.quaternion = object3d.quaternion
	return result
}
var THREEx = THREEx || {}
/**
 * - videoTexture
 * - cloakWidth
 * - cloakHeight
 * - cloakSegmentsHeight
 * - remove all mentions of cache, for cloak
 */
THREEx.ArMarkerCloak = function(videoTexture){
        var updateInShaderEnabled = true

        // build cloakMesh
        // TODO if webgl2 use repeat warp, and not multi segment, this will reduce the geometry to draw
	var geometry = new THREE.PlaneGeometry(1.3+0.25,1.85+0.25, 1, 8).translate(0,-0.3,0)
	var material = new THREE.ShaderMaterial( {
		vertexShader: THREEx.ArMarkerCloak.vertexShader,
		fragmentShader: THREEx.ArMarkerCloak.fragmentShader,
                transparent: true,
		uniforms: {
			texture: {
				value: videoTexture
			},
                        opacity: {
                                value: 0.5
                        }
		},
		defines: {
			updateInShaderEnabled: updateInShaderEnabled ? 1 : 0,
		}
	});

	var cloakMesh = new THREE.Mesh( geometry, material );
        cloakMesh.rotation.x = -Math.PI/2
	this.object3d = cloakMesh

	//////////////////////////////////////////////////////////////////////////////
	//		Code Separator
	//////////////////////////////////////////////////////////////////////////////

	var xMin = -0.65
	var xMax =  0.65
	var yMin =  0.65 + 0.1
	var yMax =  0.95 + 0.1

	//////////////////////////////////////////////////////////////////////////////
	//		originalsFaceVertexUvs
	//////////////////////////////////////////////////////////////////////////////
        var originalsFaceVertexUvs = [[]]

        // build originalsFaceVertexUvs array
	for(var faceIndex = 0; faceIndex < cloakMesh.geometry.faces.length; faceIndex ++ ){
		originalsFaceVertexUvs[0][faceIndex] = []
		originalsFaceVertexUvs[0][faceIndex][0] = new THREE.Vector2()
		originalsFaceVertexUvs[0][faceIndex][1] = new THREE.Vector2()
		originalsFaceVertexUvs[0][faceIndex][2] = new THREE.Vector2()
        }

	// set values in originalsFaceVertexUvs
	for(var i = 0; i < cloakMesh.geometry.parameters.heightSegments/2; i ++ ){
		// one segment height - even row - normale orientation
		originalsFaceVertexUvs[0][i*4+0][0].set( xMin/2+0.5, yMax/2+0.5 )
		originalsFaceVertexUvs[0][i*4+0][1].set( xMin/2+0.5, yMin/2+0.5 )
		originalsFaceVertexUvs[0][i*4+0][2].set( xMax/2+0.5, yMax/2+0.5 )
		
		originalsFaceVertexUvs[0][i*4+1][0].set( xMin/2+0.5, yMin/2+0.5 )
		originalsFaceVertexUvs[0][i*4+1][1].set( xMax/2+0.5, yMin/2+0.5 )
		originalsFaceVertexUvs[0][i*4+1][2].set( xMax/2+0.5, yMax/2+0.5 )

		// one segment height - odd row - mirror-y orientation
		originalsFaceVertexUvs[0][i*4+2][0].set( xMin/2+0.5, yMin/2+0.5 )
		originalsFaceVertexUvs[0][i*4+2][1].set( xMin/2+0.5, yMax/2+0.5 )
		originalsFaceVertexUvs[0][i*4+2][2].set( xMax/2+0.5, yMin/2+0.5 )
		
		originalsFaceVertexUvs[0][i*4+3][0].set( xMin/2+0.5, yMax/2+0.5 )
		originalsFaceVertexUvs[0][i*4+3][1].set( xMax/2+0.5, yMax/2+0.5 )
		originalsFaceVertexUvs[0][i*4+3][2].set( xMax/2+0.5, yMin/2+0.5 )
	}

        if( updateInShaderEnabled === true ){
                cloakMesh.geometry.faceVertexUvs = originalsFaceVertexUvs
                cloakMesh.geometry.uvsNeedUpdate = true                
        }

	//////////////////////////////////////////////////////////////////////////////
	//		Code Separator
	//////////////////////////////////////////////////////////////////////////////

	var originalOrthoVertices = []
	originalOrthoVertices.push( new THREE.Vector3(xMin, yMax, 0))
	originalOrthoVertices.push( new THREE.Vector3(xMax, yMax, 0))
	originalOrthoVertices.push( new THREE.Vector3(xMin, yMin, 0))
	originalOrthoVertices.push( new THREE.Vector3(xMax, yMin, 0))

	// build debugMesh
        var material = new THREE.MeshNormalMaterial({
		transparent : true,
		opacity: 0.5,
		side: THREE.DoubleSide
	});
        var geometry = new THREE.PlaneGeometry(1,1);
        var orthoMesh = new THREE.Mesh(geometry, material);
	this.orthoMesh = orthoMesh

        //////////////////////////////////////////////////////////////////////////////
        //                Code Separator
        //////////////////////////////////////////////////////////////////////////////

	this.update = function(modelViewMatrix, cameraProjectionMatrix){
                updateOrtho(modelViewMatrix, cameraProjectionMatrix)

                if( updateInShaderEnabled === false ){
                        updateUvs(modelViewMatrix, cameraProjectionMatrix)
                }
	}
        
        return

        // update cloakMesh
	function updateUvs(modelViewMatrix, cameraProjectionMatrix){
		var transformedUv = new THREE.Vector3()
                originalsFaceVertexUvs[0].forEach(function(faceVertexUvs, faceIndex){
                        faceVertexUvs.forEach(function(originalUv, uvIndex){
                                // set transformedUv - from UV coord to clip coord
                                transformedUv.x = originalUv.x * 2.0 - 1.0;
                                transformedUv.y = originalUv.y * 2.0 - 1.0;
                                transformedUv.z = 0
        			// apply modelViewMatrix and projectionMatrix
        			transformedUv.applyMatrix4( modelViewMatrix )
        			transformedUv.applyMatrix4( cameraProjectionMatrix )
        			// apply perspective
        			transformedUv.x /= transformedUv.z
        			transformedUv.y /= transformedUv.z
                                // set back from clip coord to Uv coord
                                transformedUv.x = transformedUv.x / 2.0 + 0.5;
                                transformedUv.y = transformedUv.y / 2.0 + 0.5;
                                // copy the trasnformedUv into the geometry
                                cloakMesh.geometry.faceVertexUvs[0][faceIndex][uvIndex].set(transformedUv.x, transformedUv.y)
                        })
                })
        
                // cloakMesh.geometry.faceVertexUvs = faceVertexUvs
                cloakMesh.geometry.uvsNeedUpdate = true
        }

        // update orthoMesh
	function updateOrtho(modelViewMatrix, cameraProjectionMatrix){
		// compute transformedUvs
		var transformedUvs = []
		originalOrthoVertices.forEach(function(originalOrthoVertices, index){
			var transformedUv = originalOrthoVertices.clone()
			// apply modelViewMatrix and projectionMatrix
			transformedUv.applyMatrix4( modelViewMatrix )
			transformedUv.applyMatrix4( cameraProjectionMatrix )
			// apply perspective
			transformedUv.x /= transformedUv.z
			transformedUv.y /= transformedUv.z
			// store it
			transformedUvs.push(transformedUv)
		})

		// change orthoMesh vertices
		for(var i = 0; i < transformedUvs.length; i++){
			orthoMesh.geometry.vertices[i].copy(transformedUvs[i])
		}
		orthoMesh.geometry.computeBoundingSphere()
		orthoMesh.geometry.verticesNeedUpdate = true
        }

}

//////////////////////////////////////////////////////////////////////////////
//                Shaders
//////////////////////////////////////////////////////////////////////////////

THREEx.ArMarkerCloak.markerSpaceShaderFunction = '\n'+
'        vec2 transformUvToMarkerSpace(vec2 originalUv){\n'+
'                vec3 transformedUv;\n'+
'                // set transformedUv - from UV coord to clip coord\n'+
'                transformedUv.x = originalUv.x * 2.0 - 1.0;\n'+
'                transformedUv.y = originalUv.y * 2.0 - 1.0;\n'+
'                transformedUv.z = 0.0;\n'+
'\n'+
'		// apply modelViewMatrix and projectionMatrix\n'+
'                transformedUv = (projectionMatrix * modelViewMatrix * vec4( transformedUv, 1.0 ) ).xyz;\n'+
'\n'+
'		// apply perspective\n'+
'		transformedUv.x /= transformedUv.z;\n'+
'		transformedUv.y /= transformedUv.z;\n'+
'\n'+
'                // set back from clip coord to Uv coord\n'+
'                transformedUv.x = transformedUv.x / 2.0 + 0.5;\n'+
'                transformedUv.y = transformedUv.y / 2.0 + 0.5;\n'+
'\n'+
'                // return the result\n'+
'                return transformedUv.xy;\n'+
'        }'

THREEx.ArMarkerCloak.vertexShader = THREEx.ArMarkerCloak.markerSpaceShaderFunction +
'	varying vec2 vUv;\n'+
'\n'+
'	void main(){\n'+
'                // pass the UV to the fragment\n'+
'                #if (updateInShaderEnabled == 1)\n'+
'		        vUv = transformUvToMarkerSpace(uv);\n'+
'                #else\n'+
'		        vUv = uv;\n'+
'                #endif\n'+
'\n'+
'                // compute gl_Position\n'+
'		vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\n'+
'		gl_Position = projectionMatrix * mvPosition;\n'+
'	}';

THREEx.ArMarkerCloak.fragmentShader = '\n'+
'	varying vec2 vUv;\n'+
'	uniform sampler2D texture;\n'+
'	uniform float opacity;\n'+
'\n'+
'	void main(void){\n'+
'		vec3 color = texture2D( texture, vUv ).rgb;\n'+
'\n'+
'		gl_FragColor = vec4( color, opacity);\n'+
'	}'
var THREEx = THREEx || {}

THREEx.ArMarkerControls = function(context, object3d, parameters){
	var _this = this

	THREEx.ArBaseControls.call(this, object3d)

	this.context = context
	// handle default parameters
	this.parameters = {
		// size of the marker in meter
		size : 1,
		// type of marker - ['pattern', 'barcode', 'unknown' ]
		type : 'unknown',
		// url of the pattern - IIF type='pattern'
		patternUrl : null,
		// value of the barcode - IIF type='barcode'
		barcodeValue : null,
		// change matrix mode - [modelViewMatrix, cameraTransformMatrix]
		changeMatrixMode : 'modelViewMatrix',
		// minimal confidence in the marke recognition - between [0, 1] - default to 1
		minConfidence: 0.6,
	}

	// sanity check
	var possibleValues = ['pattern', 'barcode', 'unknown']
	console.assert(possibleValues.indexOf(this.parameters.type) !== -1, 'illegal value', this.parameters.type)
	var possibleValues = ['modelViewMatrix', 'cameraTransformMatrix' ]
	console.assert(possibleValues.indexOf(this.parameters.changeMatrixMode) !== -1, 'illegal value', this.parameters.changeMatrixMode)


        // create the marker Root
	this.object3d = object3d
	this.object3d.matrixAutoUpdate = false;
	this.object3d.visible = false
	
	//////////////////////////////////////////////////////////////////////////////
	//		setParameters
	//////////////////////////////////////////////////////////////////////////////
	setParameters(parameters)
	function setParameters(parameters){
		if( parameters === undefined )	return
		for( var key in parameters ){
			var newValue = parameters[ key ]

			if( newValue === undefined ){
				console.warn( "THREEx.ArMarkerControls: '" + key + "' parameter is undefined." )
				continue
			}

			var currentValue = _this.parameters[ key ]

			if( currentValue === undefined ){
				console.warn( "THREEx.ArMarkerControls: '" + key + "' is not a property of this material." )
				continue
			}

			_this.parameters[ key ] = newValue
		}
	}

	//////////////////////////////////////////////////////////////////////////////
	//		Code Separator
	//////////////////////////////////////////////////////////////////////////////
	// add this marker to artoolkitsystem
	// TODO rename that .addMarkerControls
	context.addMarker(this)

	if( _this.context.parameters.trackingBackend === 'artoolkit' ){
		this._initArtoolkit()
	}else if( _this.context.parameters.trackingBackend === 'aruco' ){
		// TODO create a ._initAruco
		// put aruco second
		this._arucoPosit = new POS.Posit(this.parameters.size, _this.context.arucoContext.canvas.width)
	}else if( _this.context.parameters.trackingBackend === 'tango' ){
		this._initTango()
	}else console.assert(false)
}

THREEx.ArMarkerControls.prototype = Object.create( THREEx.ArBaseControls.prototype );
THREEx.ArMarkerControls.prototype.constructor = THREEx.ArMarkerControls;

THREEx.ArMarkerControls.prototype.dispose = function(){
	this.context.removeMarker(this)

	// TODO remove the event listener if needed
	// unloadMaker ???
}

//////////////////////////////////////////////////////////////////////////////
//		update controls with new modelViewMatrix
//////////////////////////////////////////////////////////////////////////////

/**
 * When you actually got a new modelViewMatrix, you need to perfom a whole bunch 
 * of things. it is done here.
 */
THREEx.ArMarkerControls.prototype.updateWithModelViewMatrix = function(modelViewMatrix){
	var markerObject3D = this.object3d;

	// mark object as visible
	markerObject3D.visible = true

	if( this.context.parameters.trackingBackend === 'artoolkit' ){
		// apply context._axisTransformMatrix - change artoolkit axis to match usual webgl one
		var tmpMatrix = new THREE.Matrix4().copy(this.context._artoolkitProjectionAxisTransformMatrix)
		tmpMatrix.multiply(modelViewMatrix)
		
		modelViewMatrix.copy(tmpMatrix)		
	}else if( this.context.parameters.trackingBackend === 'aruco' ){
		// ...
	}else if( this.context.parameters.trackingBackend === 'tango' ){
		// ...
	}else console.assert(false)


	if( this.context.parameters.trackingBackend !== 'tango' ){

		// change axis orientation on marker - artoolkit say Z is normal to the marker - ar.js say Y is normal to the marker
		var markerAxisTransformMatrix = new THREE.Matrix4().makeRotationX(Math.PI/2)
		modelViewMatrix.multiply(markerAxisTransformMatrix)
	}

	// change markerObject3D.matrix based on parameters.changeMatrixMode
	if( this.parameters.changeMatrixMode === 'modelViewMatrix' ){
		markerObject3D.matrix.copy(modelViewMatrix)
	}else if( this.parameters.changeMatrixMode === 'cameraTransformMatrix' ){
		markerObject3D.matrix.getInverse( modelViewMatrix )
	}else {
		console.assert(false)
	}

	// decompose - the matrix into .position, .quaternion, .scale
	markerObject3D.matrix.decompose(markerObject3D.position, markerObject3D.quaternion, markerObject3D.scale)

	// dispatchEvent
	this.dispatchEvent( { type: 'markerFound' } );
}

//////////////////////////////////////////////////////////////////////////////
//		utility functions
//////////////////////////////////////////////////////////////////////////////

/**
 * provide a name for a marker 
 * - silly heuristic for now
 * - should be improved
 */
THREEx.ArMarkerControls.prototype.name = function(){
	var name = ''
	name += this.parameters.type;
	if( this.parameters.type === 'pattern' ){
		var url = this.parameters.patternUrl
		var basename = url.replace(/^.*\//g, '')
		name += ' - ' + basename
	}else if( this.parameters.type === 'barcode' ){
		name += ' - ' + this.parameters.barcodeValue
	}else{
		console.assert(false, 'no .name() implemented for this marker controls')
	}
	return name
}

//////////////////////////////////////////////////////////////////////////////
//		init for Artoolkit
//////////////////////////////////////////////////////////////////////////////
THREEx.ArMarkerControls.prototype._initArtoolkit = function(){
	var _this = this

	var artoolkitMarkerId = null

	var delayedInitTimerId = setInterval(function(){
		// check if arController is init
		var arController = _this.context.arController
		if( arController === null )	return
		// stop looping if it is init
		clearInterval(delayedInitTimerId)
		delayedInitTimerId = null
		// launch the _postInitArtoolkit
		postInit()
	}, 1000/50)

	return
	
	function postInit(){
		// check if arController is init
		var arController = _this.context.arController
		console.assert(arController !== null )

		// start tracking this pattern
		if( _this.parameters.type === 'pattern' ){
	                arController.loadMarker(_this.parameters.patternUrl, function(markerId) {
				artoolkitMarkerId = markerId
	                        arController.trackPatternMarkerId(artoolkitMarkerId, _this.parameters.size);
	                });
		}else if( _this.parameters.type === 'barcode' ){
			artoolkitMarkerId = _this.parameters.barcodeValue
			arController.trackBarcodeMarkerId(artoolkitMarkerId, _this.parameters.size);
		}else if( _this.parameters.type === 'unknown' ){
			artoolkitMarkerId = null
		}else{
			console.log(false, 'invalid marker type', _this.parameters.type)
		}

		// listen to the event
		arController.addEventListener('getMarker', function(event){
			if( event.data.type === artoolkit.PATTERN_MARKER && _this.parameters.type === 'pattern' ){
				if( artoolkitMarkerId === null )	return
				if( event.data.marker.idPatt === artoolkitMarkerId ) onMarkerFound(event)
			}else if( event.data.type === artoolkit.BARCODE_MARKER && _this.parameters.type === 'barcode' ){
				// console.log('BARCODE_MARKER idMatrix', event.data.marker.idMatrix, artoolkitMarkerId )
				if( artoolkitMarkerId === null )	return
				if( event.data.marker.idMatrix === artoolkitMarkerId )  onMarkerFound(event)
			}else if( event.data.type === artoolkit.UNKNOWN_MARKER && _this.parameters.type === 'unknown'){
				onMarkerFound(event)
			}
		})
		
	}

	function onMarkerFound(event){
		// honor his.parameters.minConfidence
		if( event.data.type === artoolkit.PATTERN_MARKER && event.data.marker.cfPatt < _this.parameters.minConfidence )	return
		if( event.data.type === artoolkit.BARCODE_MARKER && event.data.marker.cfMatt < _this.parameters.minConfidence )	return

		var modelViewMatrix = new THREE.Matrix4().fromArray(event.data.matrix)
		_this.updateWithModelViewMatrix(modelViewMatrix)
	}
}

//////////////////////////////////////////////////////////////////////////////
//		aruco specific
//////////////////////////////////////////////////////////////////////////////
THREEx.ArMarkerControls.prototype._initAruco = function(){
	this._arucoPosit = new POS.Posit(this.parameters.size, _this.context.arucoContext.canvas.width)
}

//////////////////////////////////////////////////////////////////////////////
//		init for Artoolkit
//////////////////////////////////////////////////////////////////////////////
THREEx.ArMarkerControls.prototype._initTango = function(){
	var _this = this
	console.log('init tango ArMarkerControls')
}
var THREEx = THREEx || {}

THREEx.ArMarkerHelper = function(markerControls){
	this.object3d = new THREE.Group

	var mesh = new THREE.AxisHelper()
	this.object3d.add(mesh)

	var text = markerControls.id
	// debugger
	// var text = markerControls.parameters.patternUrl.slice(-1).toUpperCase();

	var canvas = document.createElement( 'canvas' );
	canvas.width =  64;
	canvas.height = 64;

	var context = canvas.getContext( '2d' );
	var texture = new THREE.CanvasTexture( canvas );

	// put the text in the sprite
	context.font = '48px monospace';
	context.fillStyle = 'rgba(192,192,255, 0.5)';
	context.fillRect( 0, 0, canvas.width, canvas.height );
	context.fillStyle = 'darkblue';
	context.fillText(text, canvas.width/4, 3*canvas.height/4 )
	texture.needsUpdate = true

	// var geometry = new THREE.CubeGeometry(1, 1, 1)
	var geometry = new THREE.PlaneGeometry(1, 1)
	var material = new THREE.MeshBasicMaterial({
		map: texture, 
		transparent: true
	});
	var mesh = new THREE.Mesh(geometry, material)
	mesh.rotation.x = -Math.PI/2

	this.object3d.add(mesh)
	
}
var THREEx = THREEx || {}

/**
 * - lerp position/quaternino/scale
 * - minDelayDetected
 * - minDelayUndetected
 * @param {[type]} object3d   [description]
 * @param {[type]} parameters [description]
 */
THREEx.ArSmoothedControls = function(object3d, parameters){
	var _this = this
	
	THREEx.ArBaseControls.call(this, object3d)
	
	// copy parameters
	this.object3d.visible = false
	
	this._lastLerpStepAt = null
	this._visibleStartedAt = null
	this._unvisibleStartedAt = null

	// handle default parameters
	parameters = parameters || {}
	this.parameters = {
		// lerp coeficient for the position - between [0,1] - default to 1
		lerpPosition: 0.8,
		// lerp coeficient for the quaternion - between [0,1] - default to 1
		lerpQuaternion: 0.2,
		// lerp coeficient for the scale - between [0,1] - default to 1
		lerpScale: 0.7,
		// delay for lerp fixed steps - in seconds - default to 1/120
		lerpStepDelay: 1/60,
		// minimum delay the sub-control must be visible before this controls become visible - default to 0 seconds
		minVisibleDelay: 0.0,
		// minimum delay the sub-control must be unvisible before this controls become unvisible - default to 0 seconds
		minUnvisibleDelay: 0.2,
	}
	
	//////////////////////////////////////////////////////////////////////////////
	//		setParameters
	//////////////////////////////////////////////////////////////////////////////
	setParameters(parameters)
	function setParameters(parameters){
		if( parameters === undefined )	return
		for( var key in parameters ){
			var newValue = parameters[ key ]

			if( newValue === undefined ){
				console.warn( "THREEx.ArSmoothedControls: '" + key + "' parameter is undefined." )
				continue
			}

			var currentValue = _this.parameters[ key ]

			if( currentValue === undefined ){
				console.warn( "THREEx.ArSmoothedControls: '" + key + "' is not a property of this material." )
				continue
			}

			_this.parameters[ key ] = newValue
		}
	}
}
	
THREEx.ArSmoothedControls.prototype = Object.create( THREEx.ArBaseControls.prototype );
THREEx.ArSmoothedControls.prototype.constructor = THREEx.ArSmoothedControls;

//////////////////////////////////////////////////////////////////////////////
//		update function
//////////////////////////////////////////////////////////////////////////////

THREEx.ArSmoothedControls.prototype.update = function(targetObject3d){
	var object3d = this.object3d
	var parameters = this.parameters
	var wasVisible = object3d.visible
	var present = performance.now()/1000


	//////////////////////////////////////////////////////////////////////////////
	//		handle object3d.visible with minVisibleDelay/minUnvisibleDelay
	//////////////////////////////////////////////////////////////////////////////
	if( targetObject3d.visible === false )	this._visibleStartedAt = null
	if( targetObject3d.visible === true )	this._unvisibleStartedAt = null

	if( targetObject3d.visible === true && this._visibleStartedAt === null )	this._visibleStartedAt = present
	if( targetObject3d.visible === false && this._unvisibleStartedAt === null )	this._unvisibleStartedAt = present

	if( wasVisible === false && targetObject3d.visible === true ){
		var visibleFor = present - this._visibleStartedAt
		if( visibleFor >= this.parameters.minVisibleDelay ){
			object3d.visible = true
			snapDirectlyToTarget()
		}
		// console.log('visibleFor', visibleFor)
	}

	if( wasVisible === true && targetObject3d.visible === false ){
		var unvisibleFor = present - this._unvisibleStartedAt
		if( unvisibleFor >= this.parameters.minUnvisibleDelay ){
			object3d.visible = false			
		}
	}
	
	//////////////////////////////////////////////////////////////////////////////
	//		apply lerp on positon/quaternion/scale
	//////////////////////////////////////////////////////////////////////////////

	// apply lerp steps - require fix time steps to behave the same no matter the fps
	if( this._lastLerpStepAt === null ){
		applyOneSlerpStep()
		this._lastLerpStepAt = present
	}else{
		var nStepsToDo = Math.floor( (present - this._lastLerpStepAt)/this.parameters.lerpStepDelay )
		for(var i = 0; i < nStepsToDo; i++){
			applyOneSlerpStep()
			this._lastLerpStepAt += this.parameters.lerpStepDelay
		}
	}

	// disable the lerp by directly copying targetObject3d position/quaternion/scale
	if( false ){		
		snapDirectlyToTarget()
	}

	// update the matrix
	this.object3d.updateMatrix()

	//////////////////////////////////////////////////////////////////////////////
	//		honor becameVisible/becameUnVisible event
	//////////////////////////////////////////////////////////////////////////////
	// honor becameVisible event
	if( wasVisible === false && object3d.visible === true ){
		this.dispatchEvent({ type: 'becameVisible' })
	}
	// honor becameUnVisible event
	if( wasVisible === true && object3d.visible === false ){
		this.dispatchEvent({ type: 'becameUnVisible' })
	}
	return

	function snapDirectlyToTarget(){
		object3d.position.copy( targetObject3d.position )
		object3d.quaternion.copy( targetObject3d.quaternion )
		object3d.scale.copy( targetObject3d.scale )
	}	
	
	function applyOneSlerpStep(){
		object3d.position.lerp(targetObject3d.position, parameters.lerpPosition)
		object3d.quaternion.slerp(targetObject3d.quaternion, parameters.lerpQuaternion)
		object3d.scale.lerp(targetObject3d.scale, parameters.lerpScale)
	}
}
var ARjs = ARjs || {}
var THREEx = THREEx || {}

ARjs.Context = THREEx.ArToolkitContext = function(parameters){
	var _this = this
	
	_this._updatedAt = null
	
	// handle default parameters
	this.parameters = {
		// AR backend - ['artoolkit', 'aruco', 'tango']
		trackingBackend: 'artoolkit',
		// debug - true if one should display artoolkit debug canvas, false otherwise
		debug: false,
		// the mode of detection - ['color', 'color_and_matrix', 'mono', 'mono_and_matrix']
		detectionMode: 'mono',
		// type of matrix code - valid iif detectionMode end with 'matrix' - [3x3, 3x3_HAMMING63, 3x3_PARITY65, 4x4, 4x4_BCH_13_9_3, 4x4_BCH_13_5_5]
		matrixCodeType: '3x3',
		
		// url of the camera parameters
		cameraParametersUrl: ARjs.Context.baseURL + 'parameters/camera_para.dat',

		// tune the maximum rate of pose detection in the source image
		maxDetectionRate: 60,
		// resolution of at which we detect pose in the source image
		canvasWidth: 640,
		canvasHeight: 480,
		
		// enable image smoothing or not for canvas copy - default to true
		// https://developer.mozilla.org/en-US/docs/Web/API/CanvasRenderingContext2D/imageSmoothingEnabled
		imageSmoothingEnabled : false,
	}
	// parameters sanity check
	console.assert(['artoolkit', 'aruco', 'tango'].indexOf(this.parameters.trackingBackend) !== -1, 'invalid parameter trackingBackend', this.parameters.trackingBackend)
	console.assert(['color', 'color_and_matrix', 'mono', 'mono_and_matrix'].indexOf(this.parameters.detectionMode) !== -1, 'invalid parameter detectionMode', this.parameters.detectionMode)
	
        this.arController = null;
        this.arucoContext = null;
	
	_this.initialized = false


	this._arMarkersControls = []
	
	//////////////////////////////////////////////////////////////////////////////
	//		setParameters
	//////////////////////////////////////////////////////////////////////////////
	setParameters(parameters)
	function setParameters(parameters){
		if( parameters === undefined )	return
		for( var key in parameters ){
			var newValue = parameters[ key ]

			if( newValue === undefined ){
				console.warn( "THREEx.ArToolkitContext: '" + key + "' parameter is undefined." )
				continue
			}

			var currentValue = _this.parameters[ key ]

			if( currentValue === undefined ){
				console.warn( "THREEx.ArToolkitContext: '" + key + "' is not a property of this material." )
				continue
			}

			_this.parameters[ key ] = newValue
		}
	}
}

Object.assign( ARjs.Context.prototype, THREE.EventDispatcher.prototype );

// ARjs.Context.baseURL = '../'
// default to github page
ARjs.Context.baseURL = 'https://jeromeetienne.github.io/AR.js/three.js/'
ARjs.Context.REVISION = '1.5.1'



/**
 * Create a default camera for this trackingBackend
 * @param {string} trackingBackend - the tracking to user
 * @return {THREE.Camera} the created camera
 */
ARjs.Context.createDefaultCamera = function( trackingBackend ){
	console.assert(false, 'use ARjs.Utils.createDefaultCamera instead')
	// Create a camera
	if( trackingBackend === 'artoolkit' ){
		var camera = new THREE.Camera();
	}else if( trackingBackend === 'aruco' ){
		var camera = new THREE.PerspectiveCamera(42, renderer.domElement.width / renderer.domElement.height, 0.01, 100);
	}else if( trackingBackend === 'tango' ){
		var camera = new THREE.PerspectiveCamera(42, renderer.domElement.width / renderer.domElement.height, 0.01, 100);
	}else console.assert(false)
	return camera
}


//////////////////////////////////////////////////////////////////////////////
//		init functions
//////////////////////////////////////////////////////////////////////////////
ARjs.Context.prototype.init = function(onCompleted){
	var _this = this
	if( this.parameters.trackingBackend === 'artoolkit' ){
		this._initArtoolkit(done)
	}else if( this.parameters.trackingBackend === 'aruco' ){
		this._initAruco(done)
	}else if( this.parameters.trackingBackend === 'tango' ){
		this._initTango(done)
	}else console.assert(false)
	return
	
	function done(){
		// dispatch event
		_this.dispatchEvent({
			type: 'initialized'
		});

		_this.initialized = true
		
		onCompleted && onCompleted()
	}

}
////////////////////////////////////////////////////////////////////////////////
//          update function
////////////////////////////////////////////////////////////////////////////////
ARjs.Context.prototype.update = function(srcElement){

	// be sure arController is fully initialized
        if(this.parameters.trackingBackend === 'artoolkit' && this.arController === null) return false;

	// honor this.parameters.maxDetectionRate
	var present = performance.now()
	if( this._updatedAt !== null && present - this._updatedAt < 1000/this.parameters.maxDetectionRate ){
		return false
	}
	this._updatedAt = present

	// mark all markers to invisible before processing this frame
	this._arMarkersControls.forEach(function(markerControls){
		markerControls.object3d.visible = false
	})

	// process this frame
	if(this.parameters.trackingBackend === 'artoolkit'){
		this._updateArtoolkit(srcElement)		
	}else if( this.parameters.trackingBackend === 'aruco' ){
		this._updateAruco(srcElement)
	}else if( this.parameters.trackingBackend === 'tango' ){
		this._updateTango(srcElement)
	}else{
		console.assert(false)
	}

	// dispatch event
	this.dispatchEvent({
		type: 'sourceProcessed'
	});


	// return true as we processed the frame
	return true;
}

////////////////////////////////////////////////////////////////////////////////
//          Add/Remove markerControls
////////////////////////////////////////////////////////////////////////////////
ARjs.Context.prototype.addMarker = function(arMarkerControls){
	console.assert(arMarkerControls instanceof THREEx.ArMarkerControls)
	this._arMarkersControls.push(arMarkerControls)
}

ARjs.Context.prototype.removeMarker = function(arMarkerControls){
	console.assert(arMarkerControls instanceof THREEx.ArMarkerControls)
	// console.log('remove marker for', arMarkerControls)
	var index = this.arMarkerControlss.indexOf(artoolkitMarker);
	console.assert(index !== index )
	this._arMarkersControls.splice(index, 1)
}

//////////////////////////////////////////////////////////////////////////////
//		artoolkit specific
//////////////////////////////////////////////////////////////////////////////
ARjs.Context.prototype._initArtoolkit = function(onCompleted){
        var _this = this

	// set this._artoolkitProjectionAxisTransformMatrix to change artoolkit projection matrix axis to match usual webgl one
	this._artoolkitProjectionAxisTransformMatrix = new THREE.Matrix4()
	this._artoolkitProjectionAxisTransformMatrix.multiply(new THREE.Matrix4().makeRotationY(Math.PI))
	this._artoolkitProjectionAxisTransformMatrix.multiply(new THREE.Matrix4().makeRotationZ(Math.PI))

	// get cameraParameters
        var cameraParameters = new ARCameraParam(_this.parameters.cameraParametersUrl, function(){
        	// init controller
                var arController = new ARController(_this.parameters.canvasWidth, _this.parameters.canvasHeight, cameraParameters);
                _this.arController = arController
                
		// honor this.parameters.imageSmoothingEnabled
		arController.ctx.mozImageSmoothingEnabled = _this.parameters.imageSmoothingEnabled;
		arController.ctx.webkitImageSmoothingEnabled = _this.parameters.imageSmoothingEnabled;
		arController.ctx.msImageSmoothingEnabled = _this.parameters.imageSmoothingEnabled;
		arController.ctx.imageSmoothingEnabled = _this.parameters.imageSmoothingEnabled;			
 		
		// honor this.parameters.debug
                if( _this.parameters.debug === true ){
			arController.debugSetup();
			arController.canvas.style.position = 'absolute'
			arController.canvas.style.top = '0px'
			arController.canvas.style.opacity = '0.6'
			arController.canvas.style.pointerEvents = 'none'
			arController.canvas.style.zIndex = '-1'
		}

		// setPatternDetectionMode
		var detectionModes = {
			'color'			: artoolkit.AR_TEMPLATE_MATCHING_COLOR,
			'color_and_matrix'	: artoolkit.AR_TEMPLATE_MATCHING_COLOR_AND_MATRIX,
			'mono'			: artoolkit.AR_TEMPLATE_MATCHING_MONO,
			'mono_and_matrix'	: artoolkit.AR_TEMPLATE_MATCHING_MONO_AND_MATRIX,
		}
		var detectionMode = detectionModes[_this.parameters.detectionMode]
		console.assert(detectionMode !== undefined)
		arController.setPatternDetectionMode(detectionMode);

		// setMatrixCodeType
		var matrixCodeTypes = {
			'3x3'		: artoolkit.AR_MATRIX_CODE_3x3,
			'3x3_HAMMING63'	: artoolkit.AR_MATRIX_CODE_3x3_HAMMING63,
			'3x3_PARITY65'	: artoolkit.AR_MATRIX_CODE_3x3_PARITY65,
			'4x4'		: artoolkit.AR_MATRIX_CODE_4x4,
			'4x4_BCH_13_9_3': artoolkit.AR_MATRIX_CODE_4x4_BCH_13_9_3,
			'4x4_BCH_13_5_5': artoolkit.AR_MATRIX_CODE_4x4_BCH_13_5_5,
		}
		var matrixCodeType = matrixCodeTypes[_this.parameters.matrixCodeType]
		console.assert(matrixCodeType !== undefined)
		arController.setMatrixCodeType(matrixCodeType);
		

		// set thresholding in artoolkit
		// this seems to be the default
		// arController.setThresholdMode(artoolkit.AR_LABELING_THRESH_MODE_MANUAL)
		// adatative consume a LOT of cpu...
		// arController.setThresholdMode(artoolkit.AR_LABELING_THRESH_MODE_AUTO_ADAPTIVE)
		// arController.setThresholdMode(artoolkit.AR_LABELING_THRESH_MODE_AUTO_OTSU)

		// notify
                onCompleted()                
        })		
	return this
}

/**
 * return the projection matrix
 */
ARjs.Context.prototype.getProjectionMatrix = function(srcElement){
	
	
// FIXME rename this function to say it is artoolkit specific - getArtoolkitProjectMatrix
// keep a backward compatibility with a console.warn
	
	
	if( this.parameters.trackingBackend === 'aruco' ){
		console.assert(false, 'dont call this function with aruco')
	}else if( this.parameters.trackingBackend === 'artoolkit' ){
		console.assert(this.arController, 'arController MUST be initialized to call this function')
		// get projectionMatrixArr from artoolkit
		var projectionMatrixArr = this.arController.getCameraMatrix();
		var projectionMatrix = new THREE.Matrix4().fromArray(projectionMatrixArr)		
	}else console.assert(false)
		
	// apply context._axisTransformMatrix - change artoolkit axis to match usual webgl one
	projectionMatrix.multiply(this._artoolkitProjectionAxisTransformMatrix)
	
	// return the result
	return projectionMatrix
}

ARjs.Context.prototype._updateArtoolkit = function(srcElement){
	this.arController.process(srcElement)
}

//////////////////////////////////////////////////////////////////////////////
//		aruco specific 
//////////////////////////////////////////////////////////////////////////////
ARjs.Context.prototype._initAruco = function(onCompleted){
	this.arucoContext = new THREEx.ArucoContext()
	
	// honor this.parameters.canvasWidth/.canvasHeight
	this.arucoContext.canvas.width = this.parameters.canvasWidth
	this.arucoContext.canvas.height = this.parameters.canvasHeight

	// honor this.parameters.imageSmoothingEnabled
	var context = this.arucoContext.canvas.getContext('2d')
	// context.mozImageSmoothingEnabled = this.parameters.imageSmoothingEnabled;
	context.webkitImageSmoothingEnabled = this.parameters.imageSmoothingEnabled;
	context.msImageSmoothingEnabled = this.parameters.imageSmoothingEnabled;
	context.imageSmoothingEnabled = this.parameters.imageSmoothingEnabled;			

	
	setTimeout(function(){
		onCompleted()
	}, 0)
}


ARjs.Context.prototype._updateAruco = function(srcElement){
	// console.log('update aruco here')
	var _this = this
	var arMarkersControls = this._arMarkersControls
        var detectedMarkers = this.arucoContext.detect(srcElement)
	
	detectedMarkers.forEach(function(detectedMarker){
		var foundControls = null
		for(var i = 0; i < arMarkersControls.length; i++){
			console.assert( arMarkersControls[i].parameters.type === 'barcode' )
			if( arMarkersControls[i].parameters.barcodeValue === detectedMarker.id ){
				foundControls = arMarkersControls[i]
				break;
			}
		}
		if( foundControls === null )	return

		var tmpObject3d = new THREE.Object3D
                _this.arucoContext.updateObject3D(tmpObject3d, foundControls._arucoPosit, foundControls.parameters.size, detectedMarker);
		tmpObject3d.updateMatrix()

		foundControls.updateWithModelViewMatrix(tmpObject3d.matrix)
	})
}

//////////////////////////////////////////////////////////////////////////////
//		tango specific 
//////////////////////////////////////////////////////////////////////////////
ARjs.Context.prototype._initTango = function(onCompleted){
	var _this = this
	// check webvr is available
	if (navigator.getVRDisplays){
		// do nothing
	} else if (navigator.getVRDevices){
		alert("Your browser supports WebVR but not the latest version. See <a href='http://webvr.info'>webvr.info</a> for more info.");
	} else {
		alert("Your browser does not support WebVR. See <a href='http://webvr.info'>webvr.info</a> for assistance.");
	}


	this._tangoContext = {
		vrDisplay: null,
		vrPointCloud: null,
		frameData: new VRFrameData(),
	}
	

	// get vrDisplay
	navigator.getVRDisplays().then(function (vrDisplays){
		if( vrDisplays.length === 0 )	alert('no vrDisplays available')
		var vrDisplay = _this._tangoContext.vrDisplay = vrDisplays[0]

		console.log('vrDisplays.displayName :', vrDisplay.displayName)

		// init vrPointCloud
		if( vrDisplay.displayName === "Tango VR Device" ){
                	_this._tangoContext.vrPointCloud = new THREE.WebAR.VRPointCloud(vrDisplay, true)
		}

		// NOTE it doesnt seem necessary and it fails on tango
		// var canvasElement = document.createElement('canvas')
		// document.body.appendChild(canvasElement)
		// _this._tangoContext.requestPresent([{ source: canvasElement }]).then(function(){
		// 	console.log('vrdisplay request accepted')
		// });

		onCompleted()
	});
}


ARjs.Context.prototype._updateTango = function(srcElement){
	// console.log('update aruco here')
	var _this = this
	var arMarkersControls = this._arMarkersControls
	var tangoContext= this._tangoContext
	var vrDisplay = this._tangoContext.vrDisplay

	// check vrDisplay is already initialized
	if( vrDisplay === null )	return


        // Update the point cloud. Only if the point cloud will be shown the geometry is also updated.
	if( vrDisplay.displayName === "Tango VR Device" ){
	        var showPointCloud = true
		var pointsToSkip = 0
	        _this._tangoContext.vrPointCloud.update(showPointCloud, pointsToSkip, true)                        		
	}


	if( this._arMarkersControls.length === 0 )	return

	// TODO here do a fake search on barcode/1001 ?

	var foundControls = this._arMarkersControls[0]
	
	var frameData = this._tangoContext.frameData

	// read frameData
	vrDisplay.getFrameData(frameData);

	if( frameData.pose.position === null )		return
	if( frameData.pose.orientation === null )	return

	// create cameraTransformMatrix
	var position = new THREE.Vector3().fromArray(frameData.pose.position)
	var quaternion = new THREE.Quaternion().fromArray(frameData.pose.orientation)
	var scale = new THREE.Vector3(1,1,1)
	var cameraTransformMatrix = new THREE.Matrix4().compose(position, quaternion, scale)
	// compute modelViewMatrix from cameraTransformMatrix
	var modelViewMatrix = new THREE.Matrix4()
	modelViewMatrix.getInverse( cameraTransformMatrix )	

	foundControls.updateWithModelViewMatrix(modelViewMatrix)
		
	// console.log('position', position)
	// if( position.x !== 0 ||  position.y !== 0 ||  position.z !== 0 ){		
	// 	console.log('vrDisplay tracking')
	// }else{
	// 	console.log('vrDisplay NOT tracking')
	// }

}
var ARjs = ARjs || {}
var THREEx = THREEx || {}

/**
 * ArToolkitProfile helps you build parameters for artoolkit
 * - it is fully independent of the rest of the code
 * - all the other classes are still expecting normal parameters
 * - you can use this class to understand how to tune your specific usecase
 * - it is made to help people to build parameters without understanding all the underlying details.
 */
ARjs.Profile = THREEx.ArToolkitProfile = function(){
	this.reset()

	this.performance('default')
}


ARjs.Profile.prototype._guessPerformanceLabel = function() {
	var isMobile = navigator.userAgent.match(/Android/i)
			|| navigator.userAgent.match(/webOS/i)
			|| navigator.userAgent.match(/iPhone/i)
			|| navigator.userAgent.match(/iPad/i)
			|| navigator.userAgent.match(/iPod/i)
			|| navigator.userAgent.match(/BlackBerry/i)
			|| navigator.userAgent.match(/Windows Phone/i)
			? true : false 
	if( isMobile === true ){
		return 'phone-normal'
	}
	return 'desktop-normal'
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////

/**
 * reset all parameters
 */
ARjs.Profile.prototype.reset = function () {
	this.sourceParameters = {
		// to read from the webcam 
		sourceType : 'webcam',
	}

	this.contextParameters = {
		cameraParametersUrl: THREEx.ArToolkitContext.baseURL + '../data/data/camera_para.dat',
		detectionMode: 'mono',
	}
	this.defaultMarkerParameters = {
		type : 'pattern',
		patternUrl : THREEx.ArToolkitContext.baseURL + '../data/data/patt.hiro',
		changeMatrixMode: 'modelViewMatrix',
	}
	return this
};

//////////////////////////////////////////////////////////////////////////////
//		Performance
//////////////////////////////////////////////////////////////////////////////



ARjs.Profile.prototype.performance = function(label) {

	if( label === 'default' ){
		label = this._guessPerformanceLabel()
	}

	if( label === 'desktop-fast' ){
		this.contextParameters.canvasWidth = 640*3
		this.contextParameters.canvasHeight = 480*3

		this.contextParameters.maxDetectionRate = 30
	}else if( label === 'desktop-normal' ){
		this.contextParameters.canvasWidth = 640
		this.contextParameters.canvasHeight = 480

		this.contextParameters.maxDetectionRate = 60
	}else if( label === 'phone-normal' ){
		this.contextParameters.canvasWidth = 80*4
		this.contextParameters.canvasHeight = 60*4

		this.contextParameters.maxDetectionRate = 30
	}else if( label === 'phone-slow' ){
		this.contextParameters.canvasWidth = 80*3
		this.contextParameters.canvasHeight = 60*3

		this.contextParameters.maxDetectionRate = 30		
	}else {
		console.assert(false, 'unknonwn label '+label)
	}
	return this
}

//////////////////////////////////////////////////////////////////////////////
//		Marker
//////////////////////////////////////////////////////////////////////////////


ARjs.Profile.prototype.defaultMarker = function (trackingBackend) {
	trackingBackend = trackingBackend || this.contextParameters.trackingBackend

	if( trackingBackend === 'artoolkit' ){
		this.contextParameters.detectionMode = 'mono'
		this.defaultMarkerParameters.type = 'pattern'
		this.defaultMarkerParameters.patternUrl = THREEx.ArToolkitContext.baseURL + '../data/data/patt.hiro'
	}else if( trackingBackend === 'aruco' ){
		this.contextParameters.detectionMode = 'mono'
		this.defaultMarkerParameters.type = 'barcode'
		this.defaultMarkerParameters.barcodeValue = 1001
	}else if( trackingBackend === 'tango' ){
		// FIXME temporary placeholder - to reevaluate later
		this.defaultMarkerParameters.type = 'barcode'
		this.defaultMarkerParameters.barcodeValue = 1001
	}else console.assert(false)

	return this
}
//////////////////////////////////////////////////////////////////////////////
//		Source
//////////////////////////////////////////////////////////////////////////////
ARjs.Profile.prototype.sourceWebcam = function () {
	this.sourceParameters.sourceType = 'webcam'
	delete this.sourceParameters.sourceUrl
	return this
}

ARjs.Profile.prototype.sourceVideo = function (url) {
	this.sourceParameters.sourceType = 'video'
	this.sourceParameters.sourceUrl = url
	return this
}

ARjs.Profile.prototype.sourceImage = function (url) {
	this.sourceParameters.sourceType = 'image'
	this.sourceParameters.sourceUrl = url
	return this
}

//////////////////////////////////////////////////////////////////////////////
//		trackingBackend
//////////////////////////////////////////////////////////////////////////////
ARjs.Profile.prototype.trackingBackend = function (trackingBackend) {
	console.warn('stop profile.trackingBackend() obsolete function. use .trackingMethod instead')
	this.contextParameters.trackingBackend = trackingBackend
	return this
}

//////////////////////////////////////////////////////////////////////////////
//		trackingBackend
//////////////////////////////////////////////////////////////////////////////
ARjs.Profile.prototype.changeMatrixMode = function (changeMatrixMode) {
	this.defaultMarkerParameters.changeMatrixMode = changeMatrixMode
	return this
}

//////////////////////////////////////////////////////////////////////////////
//		trackingBackend
//////////////////////////////////////////////////////////////////////////////
ARjs.Profile.prototype.trackingMethod = function (trackingMethod) {
	var data = ARjs.Utils.parseTrackingMethod(trackingMethod)
	this.defaultMarkerParameters.markersAreaEnabled = data.markersAreaEnabled
	this.contextParameters.trackingBackend = data.trackingBackend	
	return this
}

/**
 * check if the profile is valid. Throw an exception is not valid
 */
ARjs.Profile.prototype.checkIfValid = function () {
	if( this.contextParameters.trackingBackend === 'tango' ){
		this.sourceImage(THREEx.ArToolkitContext.baseURL + '../data/images/img.jpg')
	}
	return this
}
var ARjs = ARjs || {}
var THREEx = THREEx || {}

ARjs.Source = THREEx.ArToolkitSource = function(parameters){	
	var _this = this

	this.ready = false
        this.domElement = null

	// handle default parameters
	this.parameters = {
		// type of source - ['webcam', 'image', 'video']
		sourceType : 'webcam',
		// url of the source - valid if sourceType = image|video
		sourceUrl : null,
		
		// resolution of at which we initialize in the source image
		sourceWidth: 640,
		sourceHeight: 480,
		// resolution displayed for the source 
		displayWidth: 640,
		displayHeight: 480,
	}
	//////////////////////////////////////////////////////////////////////////////
	//		setParameters
	//////////////////////////////////////////////////////////////////////////////
	setParameters(parameters)
	function setParameters(parameters){
		if( parameters === undefined )	return
		for( var key in parameters ){
			var newValue = parameters[ key ]

			if( newValue === undefined ){
				console.warn( "THREEx.ArToolkitSource: '" + key + "' parameter is undefined." )
				continue
			}

			var currentValue = _this.parameters[ key ]

			if( currentValue === undefined ){
				console.warn( "THREEx.ArToolkitSource: '" + key + "' is not a property of this material." )
				continue
			}

			_this.parameters[ key ] = newValue
		}
	}	
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////
ARjs.Source.prototype.init = function(onReady, onError){
	var _this = this

        if( this.parameters.sourceType === 'image' ){
                var domElement = this._initSourceImage(onSourceReady, onError)                        
        }else if( this.parameters.sourceType === 'video' ){
                var domElement = this._initSourceVideo(onSourceReady, onError)                        
        }else if( this.parameters.sourceType === 'webcam' ){
                // var domElement = this._initSourceWebcamOld(onSourceReady)                        
                var domElement = this._initSourceWebcam(onSourceReady, onError)                        
        }else{
                console.assert(false)
        }

	// attach
        this.domElement = domElement
        this.domElement.style.position = 'absolute'
        this.domElement.style.top = '0px'
        this.domElement.style.left = '0px'
        this.domElement.style.zIndex = '-2'

	return this
        function onSourceReady(){
		document.body.appendChild(_this.domElement);

		_this.ready = true

		onReady && onReady()
        }
} 

////////////////////////////////////////////////////////////////////////////////
//          init image source
////////////////////////////////////////////////////////////////////////////////


ARjs.Source.prototype._initSourceImage = function(onReady) {
	// TODO make it static
        var domElement = document.createElement('img')
	domElement.src = this.parameters.sourceUrl

	domElement.width = this.parameters.sourceWidth
	domElement.height = this.parameters.sourceHeight
	domElement.style.width = this.parameters.displayWidth+'px'
	domElement.style.height = this.parameters.displayHeight+'px'

	// wait until the video stream is ready
	var interval = setInterval(function() {
		if (!domElement.naturalWidth)	return;
		onReady()
		clearInterval(interval)
	}, 1000/50);

	return domElement                
}

////////////////////////////////////////////////////////////////////////////////
//          init video source
////////////////////////////////////////////////////////////////////////////////


ARjs.Source.prototype._initSourceVideo = function(onReady) {
	// TODO make it static
	var domElement = document.createElement('video');
	domElement.src = this.parameters.sourceUrl

	domElement.style.objectFit = 'initial'

	domElement.autoplay = true;
	domElement.webkitPlaysinline = true;
	domElement.controls = false;
	domElement.loop = true;
	domElement.muted = true

	// trick to trigger the video on android
	document.body.addEventListener('click', function onClick(){
		document.body.removeEventListener('click', onClick);
		domElement.play()
	})

	domElement.width = this.parameters.sourceWidth
	domElement.height = this.parameters.sourceHeight
	domElement.style.width = this.parameters.displayWidth+'px'
	domElement.style.height = this.parameters.displayHeight+'px'
	
	// wait until the video stream is ready
	var interval = setInterval(function() {
		if (!domElement.videoWidth)	return;
		onReady()
		clearInterval(interval)
	}, 1000/50);
	return domElement
}

////////////////////////////////////////////////////////////////////////////////
//          handle webcam source
////////////////////////////////////////////////////////////////////////////////

ARjs.Source.prototype._initSourceWebcam = function(onReady, onError) {
	var _this = this

	// init default value
	onError = onError || function(error){	
		alert('Webcam Error\nName: '+error.name + '\nMessage: '+error.message)
	}

	var domElement = document.createElement('video');
	domElement.setAttribute('autoplay', '');
	domElement.setAttribute('muted', '');
	domElement.setAttribute('playsinline', '');
	domElement.style.width = this.parameters.displayWidth+'px'
	domElement.style.height = this.parameters.displayHeight+'px'

	// check API is available
	if (navigator.mediaDevices === undefined 
			|| navigator.mediaDevices.enumerateDevices === undefined 
			|| navigator.mediaDevices.getUserMedia === undefined  ){
		if( navigator.mediaDevices === undefined )				var fctName = 'navigator.mediaDevices'
		else if( navigator.mediaDevices.enumerateDevices === undefined )	var fctName = 'navigator.mediaDevices.enumerateDevices'
		else if( navigator.mediaDevices.getUserMedia === undefined )		var fctName = 'navigator.mediaDevices.getUserMedia'
		else console.assert(false)
		onError({
			name: '',
			message: 'WebRTC issue-! '+fctName+' not present in your browser'
		})
		return null
	}

	// get available devices
	navigator.mediaDevices.enumerateDevices().then(function(devices) {
                var userMediaConstraints = {
			audio: false,
			video: {
				facingMode: 'environment',
				width: {
					ideal: _this.parameters.sourceWidth,
					// min: 1024,
					// max: 1920
				},
				height: {
					ideal: _this.parameters.sourceHeight,
					// min: 776,
					// max: 1080
				}
		  	}
                }
		// get a device which satisfy the constraints
		navigator.mediaDevices.getUserMedia(userMediaConstraints).then(function success(stream) {
			// set the .src of the domElement
			domElement.srcObject = stream;
			// to start the video, when it is possible to start it only on userevent. like in android
			document.body.addEventListener('click', function(){
				domElement.play();
			})
			// domElement.play();

// TODO listen to loadedmetadata instead
			// wait until the video stream is ready
			var interval = setInterval(function() {
				if (!domElement.videoWidth)	return;
				onReady()
				clearInterval(interval)
			}, 1000/50);
		}).catch(function(error) {
			onError({
				name: error.name,
				message: error.message
			});
		});
	}).catch(function(error) {
		onError({
			message: error.message
		});
	});

	return domElement
}

//////////////////////////////////////////////////////////////////////////////
//		Handle Mobile Torch
//////////////////////////////////////////////////////////////////////////////
ARjs.Source.prototype.hasMobileTorch = function(){
	var stream = arToolkitSource.domElement.srcObject
	if( stream instanceof MediaStream === false )	return false

	if( this._currentTorchStatus === undefined ){
		this._currentTorchStatus = false
	}

	var videoTrack = stream.getVideoTracks()[0];

	// if videoTrack.getCapabilities() doesnt exist, return false now
	if( videoTrack.getCapabilities === undefined )	return false

	var capabilities = videoTrack.getCapabilities()
	
	return capabilities.torch ? true : false
}

/**
 * toggle the flash/torch of the mobile fun if applicable.
 * Great post about it https://www.oberhofer.co/mediastreamtrack-and-its-capabilities/
 */
ARjs.Source.prototype.toggleMobileTorch = function(){
	// sanity check
	console.assert(this.hasMobileTorch() === true)
		
	var stream = arToolkitSource.domElement.srcObject
	if( stream instanceof MediaStream === false ){
		alert('enabling mobile torch is available only on webcam')
		return
	}

	if( this._currentTorchStatus === undefined ){
		this._currentTorchStatus = false
	}

	var videoTrack = stream.getVideoTracks()[0];
	var capabilities = videoTrack.getCapabilities()
	
	if( !capabilities.torch ){
		alert('no mobile torch is available on your camera')
		return
	}

	this._currentTorchStatus = this._currentTorchStatus === false ? true : false
	videoTrack.applyConstraints({
		advanced: [{
			torch: this._currentTorchStatus
		}]
	}).catch(function(error){
		console.log(error)
	});
}

////////////////////////////////////////////////////////////////////////////////
//          handle resize
////////////////////////////////////////////////////////////////////////////////

ARjs.Source.prototype.onResizeElement = function(mirrorDomElements){
	var _this = this
	var screenWidth = window.innerWidth
	var screenHeight = window.innerHeight

	// compute sourceWidth, sourceHeight
	if( this.domElement.nodeName === "IMG" ){
		var sourceWidth = this.domElement.naturalWidth
		var sourceHeight = this.domElement.naturalHeight
	}else if( this.domElement.nodeName === "VIDEO" ){
		var sourceWidth = this.domElement.videoWidth
		var sourceHeight = this.domElement.videoHeight
	}else{
		console.assert(false)
	}
	
	// compute sourceAspect
	var sourceAspect = sourceWidth / sourceHeight
	// compute screenAspect
	var screenAspect = screenWidth / screenHeight

	// if screenAspect < sourceAspect, then change the width, else change the height
	if( screenAspect < sourceAspect ){
		// compute newWidth and set .width/.marginLeft
		var newWidth = sourceAspect * screenHeight
		this.domElement.style.width = newWidth+'px'
		this.domElement.style.marginLeft = -(newWidth-screenWidth)/2+'px'
		
		// init style.height/.marginTop to normal value
		this.domElement.style.height = screenHeight+'px'
		this.domElement.style.marginTop = '0px'
	}else{
		// compute newHeight and set .height/.marginTop
		var newHeight = 1 / (sourceAspect / screenWidth)
		this.domElement.style.height = newHeight+'px'
		this.domElement.style.marginTop = -(newHeight-screenHeight)/2+'px'
		
		// init style.width/.marginLeft to normal value
		this.domElement.style.width = screenWidth+'px'
		this.domElement.style.marginLeft = '0px'
	}
	
	
	if( arguments.length !== 0 ){
		debugger
		console.warn('use bad signature for arToolkitSource.copyElementSizeTo')
	}
	// honor default parameters
	// if( mirrorDomElements !== undefined )	console.warn('still use the old resize. fix it')
	if( mirrorDomElements === undefined )	mirrorDomElements = []
	if( mirrorDomElements instanceof Array === false )	mirrorDomElements = [mirrorDomElements]	

	// Mirror _this.domElement.style to mirrorDomElements
	mirrorDomElements.forEach(function(domElement){
		_this.copyElementSizeTo(domElement)
	})
}

ARjs.Source.prototype.copyElementSizeTo = function(otherElement){
	otherElement.style.width = this.domElement.style.width
	otherElement.style.height = this.domElement.style.height	
	otherElement.style.marginLeft = this.domElement.style.marginLeft
	otherElement.style.marginTop = this.domElement.style.marginTop
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////

ARjs.Source.prototype.copySizeTo = function(){
	console.warn('obsolete function arToolkitSource.copySizeTo. Use arToolkitSource.copyElementSizeTo' )
	this.copyElementSizeTo.apply(this, arguments)
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////

ARjs.Source.prototype.onResize	= function(arToolkitContext, renderer, camera){
	if( arguments.length !== 3 ){
		console.warn('obsolete function arToolkitSource.onResize. Use arToolkitSource.onResizeElement' )
		return this.onResizeElement.apply(this, arguments)
	}

	var trackingBackend = arToolkitContext.parameters.trackingBackend
	

	// RESIZE DOMELEMENT
	if( trackingBackend === 'artoolkit' ){

		this.onResizeElement()
		
		var isAframe = renderer.domElement.dataset.aframeCanvas ? true : false
		if( isAframe === false ){
			this.copyElementSizeTo(renderer.domElement)	
		}else{
			
		}

		if( arToolkitContext.arController !== null ){
			this.copyElementSizeTo(arToolkitContext.arController.canvas)	
		}
	}else if( trackingBackend === 'aruco' ){
		this.onResizeElement()
		this.copyElementSizeTo(renderer.domElement)	

		this.copyElementSizeTo(arToolkitContext.arucoContext.canvas)	
	}else if( trackingBackend === 'tango' ){
		renderer.setSize( window.innerWidth, window.innerHeight )
	}else console.assert(false, 'unhandled trackingBackend '+trackingBackend)


	// UPDATE CAMERA
	if( trackingBackend === 'artoolkit' ){
		if( arToolkitContext.arController !== null ){
			camera.projectionMatrix.copy( arToolkitContext.getProjectionMatrix() );			
		}
	}else if( trackingBackend === 'aruco' ){	
		camera.aspect = renderer.domElement.width / renderer.domElement.height;
		camera.updateProjectionMatrix();			
	}else if( trackingBackend === 'tango' ){
		var vrDisplay = arToolkitContext._tangoContext.vrDisplay
		// make camera fit vrDisplay
		if( vrDisplay && vrDisplay.displayName === "Tango VR Device" ) THREE.WebAR.resizeVRSeeThroughCamera(vrDisplay, camera)
	}else console.assert(false, 'unhandled trackingBackend '+trackingBackend)	
}
var THREEx = THREEx || {}

THREEx.ArVideoInWebgl = function(videoTexture){	
	var _this = this
	
	//////////////////////////////////////////////////////////////////////////////
	//	plane always in front of the camera, exactly as big as the viewport
	//////////////////////////////////////////////////////////////////////////////
	var geometry = new THREE.PlaneGeometry(2, 2);
	var material = new THREE.MeshBasicMaterial({
		// map : new THREE.TextureLoader().load('images/water.jpg'),
		map : videoTexture,
		// side: THREE.DoubleSide,
		// opacity: 0.5,
		// color: 'pink',
		// transparent: true,
	});
	var seethruPlane = new THREE.Mesh(geometry, material);
	this.object3d = seethruPlane
	// scene.add(seethruPlane);
	
	// arToolkitSource.domElement.style.visibility = 'hidden'

	// TODO extract the fov from the projectionMatrix
	// camera.fov = 43.1
	this.update = function(camera){
		camera.updateMatrixWorld(true)
		
		// get seethruPlane position
		var position = new THREE.Vector3(-0,0,-20)	// TODO how come you got that offset on x ???
		var position = new THREE.Vector3(-0,0,-20)	// TODO how come you got that offset on x ???
		seethruPlane.position.copy(position)
		camera.localToWorld(seethruPlane.position)
		
		// get seethruPlane quaternion
		camera.matrixWorld.decompose( camera.position, camera.quaternion, camera.scale );	
		seethruPlane.quaternion.copy( camera.quaternion )
		
		// extract the fov from the projectionMatrix
		var fov = THREE.Math.radToDeg(Math.atan(1/camera.projectionMatrix.elements[5]))*2;
	// console.log('fov', fov)
		
		var elementWidth = parseFloat( arToolkitSource.domElement.style.width.replace(/px$/,''), 10 )
		var elementHeight = parseFloat( arToolkitSource.domElement.style.height.replace(/px$/,''), 10 )
		
		var aspect = elementWidth / elementHeight
		
		// camera.fov = fov
		// if( vrDisplay.isPresenting ){
		// 	fov *= 2
		// 	aspect *= 2
		// }
		
		// get seethruPlane height relative to fov
		seethruPlane.scale.y = Math.tan(THREE.Math.DEG2RAD * fov/2)*position.length() 
		// get seethruPlane aspect
		seethruPlane.scale.x = seethruPlane.scale.y * aspect
	}

	//////////////////////////////////////////////////////////////////////////////
	//		Code Separator
	//////////////////////////////////////////////////////////////////////////////
	// var video = arToolkitSource.domElement;
	// 
	// window.addEventListener('resize', function(){
	// 	updateSeeThruAspectUv(seethruPlane)	
	// })
	// video.addEventListener('canplaythrough', function(){
	// 	updateSeeThruAspectUv(seethruPlane)
	// })
	// function updateSeeThruAspectUv(plane){
	// 
	// 	// if video isnt yet ready to play
	// 	if( video.videoWidth === 0 || video.videoHeight === 0 )	return
	// 
	// 	var faceVertexUvs = plane.geometry.faceVertexUvs[0]
	// 	var screenAspect = window.innerWidth / window.innerHeight
	// 	var videoAspect = video.videoWidth / video.videoHeight
	// 	
	// 	plane.geometry.uvsNeedUpdate = true
	// 	if( screenAspect >= videoAspect ){
	// 		var actualHeight = videoAspect / screenAspect;
	// 		// faceVertexUvs y 0
	// 		faceVertexUvs[0][1].y = 0.5 - actualHeight/2
	// 		faceVertexUvs[1][0].y = 0.5 - actualHeight/2
	// 		faceVertexUvs[1][1].y = 0.5 - actualHeight/2
	// 		// faceVertexUvs y 1
	// 		faceVertexUvs[0][0].y = 0.5 + actualHeight/2
	// 		faceVertexUvs[0][2].y = 0.5 + actualHeight/2
	// 		faceVertexUvs[1][2].y = 0.5 + actualHeight/2
	// 	}else{
	// 		var actualWidth = screenAspect / videoAspect;
	// 		// faceVertexUvs x 0
	// 		faceVertexUvs[0][0].x = 0.5 - actualWidth/2
	// 		faceVertexUvs[0][1].x = 0.5 - actualWidth/2
	// 		faceVertexUvs[1][0].x = 0.5 - actualWidth/2
	// 		
	// 		// faceVertexUvs x 1
	// 		faceVertexUvs[0][2].x = 0.5 + actualWidth/2
	// 		faceVertexUvs[1][1].x = 0.5 + actualWidth/2
	// 		faceVertexUvs[1][2].x = 0.5 + actualWidth/2
	// 	}
	// }

}
var THREEx = THREEx || {}

// TODO this is useless - prefere arjs-HitTesting.js

/**
 * - maybe support .onClickFcts in each object3d
 * - seems an easy light layer for clickable object
 * - up to 
 */
THREEx.HitTestingPlane = function(sourceElement){
	this._sourceElement = sourceElement

	// create _pickingScene
	this._pickingScene = new THREE.Scene
	
	// create _pickingPlane
	var geometry = new THREE.PlaneGeometry(20,20,19,19).rotateX(-Math.PI/2)
	// var geometry = new THREE.PlaneGeometry(20,20).rotateX(-Math.PI/2)
	var material = new THREE.MeshBasicMaterial({
		// opacity: 0.5,
		// transparent: true,
		wireframe: true
	})
	// material.visible = false
	this._pickingPlane = new THREE.Mesh(geometry, material)
	this._pickingScene.add(this._pickingPlane)

	// Create pickingCamera
	var fullWidth = parseInt(sourceElement.style.width)
	var fullHeight = parseInt(sourceElement.style.height)
	// TODO hardcoded fov - couch
	this._pickingCamera = new THREE.PerspectiveCamera(42, fullWidth / fullHeight, 0.1, 30);	
}

//////////////////////////////////////////////////////////////////////////////
//		update function
//////////////////////////////////////////////////////////////////////////////

THREEx.HitTestingPlane.prototype.update = function(camera, pickingRoot, changeMatrixMode){

	this.onResize()
	

	if( changeMatrixMode === 'modelViewMatrix' ){
		// set pickingPlane position
		var pickingPlane = this._pickingPlane
		pickingRoot.parent.updateMatrixWorld()
		pickingPlane.matrix.copy(pickingRoot.parent.matrixWorld)
		// set position/quaternion/scale from pickingPlane.matrix
		pickingPlane.matrix.decompose(pickingPlane.position, pickingPlane.quaternion, pickingPlane.scale)
	}else if( changeMatrixMode === 'cameraTransformMatrix' ){
		// set pickingPlane position
		var pickingCamera = this._pickingCamera
		camera.updateMatrixWorld()
		pickingCamera.matrix.copy(camera.matrixWorld)
		// set position/quaternion/scale from pickingCamera.matrix
		pickingCamera.matrix.decompose(pickingCamera.position, pickingCamera.quaternion, pickingCamera.scale)
	}else console.assert(false)


// var position = this._pickingPlane.position
// console.log('pickingPlane position', position.x.toFixed(2), position.y.toFixed(2), position.z.toFixed(2))
// var position = this._pickingCamera.position
// console.log('his._pickingCamera position', position.x.toFixed(2), position.y.toFixed(2), position.z.toFixed(2))
	
}

//////////////////////////////////////////////////////////////////////////////
//		resize camera
//////////////////////////////////////////////////////////////////////////////

THREEx.HitTestingPlane.prototype.onResize = function(){
	var sourceElement = this._sourceElement
	var pickingCamera = this._pickingCamera
	
// FIXME why using css here ??? not even computed style
// should get the size of the elment directly independantly 
	var fullWidth = parseInt(sourceElement.style.width)
	var fullHeight = parseInt(sourceElement.style.height)
	pickingCamera.aspect = fullWidth / fullHeight

	pickingCamera.updateProjectionMatrix()
}

//////////////////////////////////////////////////////////////////////////////
//		Perform test
//////////////////////////////////////////////////////////////////////////////
THREEx.HitTestingPlane.prototype.test = function(mouseX, mouseY){
	// convert mouseX, mouseY to [-1, +1]
	mouseX = (mouseX-0.5)*2
	mouseY =-(mouseY-0.5)*2
	
	this._pickingScene.updateMatrixWorld(true)

	// compute intersections between mouseVector3 and pickingPlane
	var raycaster = new THREE.Raycaster();
	var mouseVector3 = new THREE.Vector3(mouseX, mouseY, 1);
	raycaster.setFromCamera( mouseVector3, this._pickingCamera )
	var intersects = raycaster.intersectObjects( [this._pickingPlane] )

	if( intersects.length === 0 )	return null

	// set new demoRoot position
	var position = this._pickingPlane.worldToLocal( intersects[0].point.clone() )
	// TODO here do a look at the camera ?
	var quaternion = new THREE.Quaternion
	var scale = new THREE.Vector3(1,1,1)//.multiplyScalar(1)
	
	return {
		position : position,
		quaternion : quaternion,
		scale : scale
	}
}

//////////////////////////////////////////////////////////////////////////////
//		render the pickingPlane for debug
//////////////////////////////////////////////////////////////////////////////

THREEx.HitTestingPlane.prototype.renderDebug = function(renderer){
	// render sceneOrtho
	renderer.render( this._pickingScene, this._pickingCamera )
}
var THREEx = THREEx || {}

/**
 * @class
 * 
 * @return {[type]} [description]
 */
THREEx.HitTestingTango = function(arContext){
	this._arContext = arContext
	// seems to be the object bounding sphere for picking
	this.boundingSphereRadius = 0.01
	// default result scale
	this.resultScale = new THREE.Vector3(1,1,1).multiplyScalar(1)
}

//////////////////////////////////////////////////////////////////////////////
//		update function
//////////////////////////////////////////////////////////////////////////////

THREEx.HitTestingTango.prototype.update = function(){
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////
/**
 * do the actual testing
 * 
 * @param {ARjs.Context} arContext - context to use
 * @param {Number} mouseX    - mouse x coordinate in [0, 1]
 * @param {Numer} mouseY    - mouse y coordinate in [0, 1]
 * @return {Object} - result
 */
THREEx.HitTestingTango.prototype.test = function(mouseX, mouseY){
	var vrDisplay = this._arContext._tangoContext.vrDisplay
        if (vrDisplay === null ) return null
	
	if( vrDisplay.displayName !== "Tango VR Device" )	return null
	
        var pointAndPlane = vrDisplay.getPickingPointAndPlaneInPointCloud(mouseX, mouseY)
        if( pointAndPlane == null ) {
                console.warn('Could not retrieve the correct point and plane.')
                return null
        }
	
	// FIXME not sure what this is
	var boundingSphereRadius = 0.01	
	
	// the bigger the number the likeliest it crash chromium-webar

        // Orient and position the model in the picking point according
        // to the picking plane. The offset is half of the model size.
        var object3d = new THREE.Object3D
        THREE.WebAR.positionAndRotateObject3DWithPickingPointAndPlaneInPointCloud(
                pointAndPlane, object3d, this.boundingSphereRadius
        )
	object3d.rotateZ(-Math.PI/2)

	// return the result
	var result = {
		position : object3d.position,
		quaternion : object3d.quaternion,
		scale : this.resultScale,
	}

	return result
}
// @namespace
var ARjs = ARjs || {}

// TODO this is a controls... should i give the object3d here ?
// not according to 'no three.js dependancy'

/**
 * Create an anchor in the real world
 * 
 * @param {ARjs.Session} arSession - the session on which we create the anchor
 * @param {Object} markerParameters - parameter of this anchor
 */
ARjs.Anchor = function(arSession, markerParameters){
	var _this = this
	var arContext = arSession.arContext
	var scene = arSession.parameters.scene
	var camera = arSession.parameters.camera
	
	this.arSession = arSession
	this.parameters = markerParameters
	
	// log to debug
	console.log('ARjs.Anchor -', 'changeMatrixMode:', this.parameters.changeMatrixMode, '/ markersAreaEnabled:', markerParameters.markersAreaEnabled)


	var markerRoot = new THREE.Group
	scene.add(markerRoot)

	// set controlledObject depending on changeMatrixMode
	if( markerParameters.changeMatrixMode === 'modelViewMatrix' ){
		var controlledObject = markerRoot
	}else if( markerParameters.changeMatrixMode === 'cameraTransformMatrix' ){
		var controlledObject = camera
	}else console.assert(false)

	if( markerParameters.markersAreaEnabled === false ){
		var markerControls = new THREEx.ArMarkerControls(arContext, controlledObject, markerParameters)		
	}else{
		// sanity check - MUST be a trackingBackend with markers
		console.assert( arContext.parameters.trackingBackend === 'artoolkit' || arContext.parameters.trackingBackend === 'aruco' )
		// for multi marker
		if( localStorage.getItem('ARjsMultiMarkerFile') === null ){
			ARjs.MarkersAreaUtils.storeDefaultMultiMarkerFile(arContext.parameters.trackingBackend)
		}
		
		// get multiMarkerFile from localStorage
		console.assert( localStorage.getItem('ARjsMultiMarkerFile') !== null )
		var multiMarkerFile = localStorage.getItem('ARjsMultiMarkerFile')

		// set controlledObject depending on changeMatrixMode
		if( markerParameters.changeMatrixMode === 'modelViewMatrix' ){
			var parent3D = scene
		}else if( markerParameters.changeMatrixMode === 'cameraTransformMatrix' ){
			var parent3D = camera
		}else console.assert(false)
	
		// build a multiMarkerControls
		var multiMarkerControls = ARjs.MarkersAreaControls.fromJSON(arContext, parent3D, controlledObject, multiMarkerFile)
		
		// honor markerParameters.changeMatrixMode
		multiMarkerControls.parameters.changeMatrixMode = markerParameters.changeMatrixMode

		// create ArMarkerHelper - useful to debug
		var markerHelpers = []
		multiMarkerControls.subMarkersControls.forEach(function(subMarkerControls){
			// add an helper to visuable each sub-marker
			var markerHelper = new THREEx.ArMarkerHelper(subMarkerControls)
			markerHelper.object3d.visible = false
			// subMarkerControls.object3d.add( markerHelper.object3d )		
			subMarkerControls.object3d.add( markerHelper.object3d )		
			// add it to markerHelpers
			markerHelpers.push(markerHelper)
		})
		// define API specific to markersArea
		this.markersArea = {}
		this.markersArea.setSubMarkersVisibility = function(visible){
			markerHelpers.forEach(function(markerHelper){
				markerHelper.object3d.visible = visible
			})
		}
	}
	
	this.object3d = new THREE.Group()
		
	//////////////////////////////////////////////////////////////////////////////
	//		THREEx.ArSmoothedControls
	//////////////////////////////////////////////////////////////////////////////
	
	var shouldBeSmoothed = true
	if( arContext.parameters.trackingBackend === 'tango' ) shouldBeSmoothed = false 

	if( shouldBeSmoothed === true ){
		// build a smoothedControls
		var smoothedRoot = new THREE.Group()
		scene.add(smoothedRoot)
		var smoothedControls = new THREEx.ArSmoothedControls(smoothedRoot)
		smoothedRoot.add(this.object3d)	
	}else{
		markerRoot.add(this.object3d)
	}


	//////////////////////////////////////////////////////////////////////////////
	//		Code Separator
	//////////////////////////////////////////////////////////////////////////////
	this.update = function(){	
		// update _this.object3d.visible
		_this.object3d.visible = _this.object3d.parent.visible

		// console.log('controlledObject.visible', _this.object3d.parent.visible)
		if( smoothedControls !== undefined ){
			// update smoothedControls parameters depending on how many markers are visible in multiMarkerControls
			if( multiMarkerControls !== undefined ){
				multiMarkerControls.updateSmoothedControls(smoothedControls)
			}

			// update smoothedControls
			smoothedControls.update(markerRoot)			
		}
	}
}


/**
 * Apply ARjs.Session.HitTestResult to the controlled object3d
 * 
 * @param {ARjs.HitTesting.Result} hitTestResult - the result to apply
 */
ARjs.Anchor.prototype.applyHitTestResult = function(hitTestResult){
	console.warn('obsolete anchro.applyHitTestResult - use hitTestResult.apply(object3d) instead')
	hitTestResult.apply(this.object3d)
	// object3d.position.copy(hitTestResult.position)
	// object3d.quaternion.copy(hitTestResult.quaternion)
	// object3d.scale.copy(hitTestResult.scale)
	// 
	// object3d.updateMatrix()
}
// @namespace
var ARjs = ARjs || {}

/**
 * Create an debug UI for an ARjs.Anchor
 * 
 * @param {ARjs.Anchor} arAnchor - the anchor to user
 */
ARjs.SessionDebugUI = function(arSession, tangoPointCloud){
	var trackingBackend = arSession.arContext.parameters.trackingBackend

	this.domElement = document.createElement('div')
	this.domElement.style.color = 'rgba(0,0,0,0.9)'
	this.domElement.style.backgroundColor = 'rgba(127,127,127,0.5)'
	this.domElement.style.display = 'inline-block'
	this.domElement.style.padding = '0.5em'
	this.domElement.style.margin = '0.5em'
	this.domElement.style.textAlign = 'left'

	//////////////////////////////////////////////////////////////////////////////
	//		add title
	//////////////////////////////////////////////////////////////////////////////
	// var domElement = document.createElement('div')
	// domElement.style.display = 'block'
	// domElement.style.fontWeight = 'bold'
	// domElement.style.fontSize = '120%'
	// this.domElement.appendChild(domElement)
	// domElement.innerHTML = 'AR.js Session Debug'

	//////////////////////////////////////////////////////////////////////////////
	//		current-tracking-backend
	//////////////////////////////////////////////////////////////////////////////

	var domElement = document.createElement('span')
	domElement.style.display = 'block'
	this.domElement.appendChild(domElement)
	domElement.innerHTML = '<b>trackingBackend</b> : ' +trackingBackend
	
	//////////////////////////////////////////////////////////////////////////////
	//		augmented-websites
	//////////////////////////////////////////////////////////////////////////////
	var domElement = document.createElement('a')
	domElement.innerHTML = 'Share on augmented-websites'
	domElement.style.display = 'block'
	domElement.setAttribute('target', '_blank')
	domElement.href = 'https://webxr.io/augmented-website?'+location.href
	this.domElement.appendChild(domElement)				

	//////////////////////////////////////////////////////////////////////////////
	//		toggle-point-cloud
	//////////////////////////////////////////////////////////////////////////////

	if( trackingBackend === 'tango' && tangoPointCloud ){
		var domElement = document.createElement('button')
		this.domElement.appendChild(domElement)

		domElement.id= 'buttonTangoTogglePointCloud'
		domElement.innerHTML = 'toggle-point-cloud'
		domElement.href='javascript:void(0)'

		domElement.addEventListener('click', function(){
			var scene = arSession.parameters.scene
	// TODO how tangoPointCloud, get connected here ???
	// in arguments simply ?
			if( tangoPointCloud.object3d.parent ){
				scene.remove(tangoPointCloud.object3d)
			}else{
				scene.add(tangoPointCloud.object3d)			
			}
		})
	}
}

//////////////////////////////////////////////////////////////////////////////
//		ARjs.AnchorDebugUI
//////////////////////////////////////////////////////////////////////////////

/**
 * Create an debug UI for an ARjs.Anchor
 * 
 * @param {ARjs.Anchor} arAnchor - the anchor to user
 */
ARjs.AnchorDebugUI = function(arAnchor){
	var _this = this 
	var arSession = arAnchor.arSession
	var trackingBackend = arSession.arContext.parameters.trackingBackend
	
	this.domElement = document.createElement('div')
	this.domElement.style.color = 'rgba(0,0,0,0.9)'
	this.domElement.style.backgroundColor = 'rgba(127,127,127,0.5)'
	this.domElement.style.display = 'inline-block'
	this.domElement.style.padding = '0.5em'
	this.domElement.style.margin = '0.5em'
	this.domElement.style.textAlign = 'left'

	//////////////////////////////////////////////////////////////////////////////
	//		add title
	//////////////////////////////////////////////////////////////////////////////

	// var domElement = document.createElement('div')
	// domElement.style.display = 'block'
	// domElement.style.fontWeight = 'bold'
	// domElement.style.fontSize = '120%'
	// this.domElement.appendChild(domElement)
	// domElement.innerHTML = 'Anchor Marker Debug'

	//////////////////////////////////////////////////////////////////////////////
	//		current-tracking-backend
	//////////////////////////////////////////////////////////////////////////////

	var domElement = document.createElement('span')
	domElement.style.display = 'block'
	this.domElement.appendChild(domElement)
	domElement.innerHTML = '<b>markersAreaEnabled</b> :' +arAnchor.parameters.markersAreaEnabled

	//////////////////////////////////////////////////////////////////////////////
	//		toggle-marker-helper
	//////////////////////////////////////////////////////////////////////////////

	if( arAnchor.parameters.markersAreaEnabled ){
		var domElement = document.createElement('button')
		domElement.style.display = 'block'
		this.domElement.appendChild(domElement)

		domElement.id= 'buttonToggleMarkerHelpers'
		domElement.innerHTML = 'toggle-marker-helper'
		domElement.href='javascript:void(0)'

		var subMarkerHelpersVisible = false
		domElement.addEventListener('click', function(){
			subMarkerHelpersVisible = subMarkerHelpersVisible ? false : true
			arAnchor.markersArea.setSubMarkersVisibility(subMarkerHelpersVisible)		
		})
	}
	
	//////////////////////////////////////////////////////////////////////////////
	//		Learn-new-marker-area
	//////////////////////////////////////////////////////////////////////////////

	if( arAnchor.parameters.markersAreaEnabled ){
		var domElement = document.createElement('button')
		domElement.style.display = 'block'
		this.domElement.appendChild(domElement)

		domElement.id = 'buttonMarkersAreaLearner'
		domElement.innerHTML = 'Learn-new-marker-area'
		domElement.href ='javascript:void(0)'

		domElement.addEventListener('click', function(){
			var learnerBaseURL = ARjs.Context.baseURL + 'examples/multi-markers/examples/learner.html'
			ARjs.MarkersAreaUtils.navigateToLearnerPage(learnerBaseURL, trackingBackend)
		})	
	}

	//////////////////////////////////////////////////////////////////////////////
	//		Reset-marker-area
	//////////////////////////////////////////////////////////////////////////////

	if( arAnchor.parameters.markersAreaEnabled ){
		var domElement = document.createElement('button')
		domElement.style.display = 'block'
		this.domElement.appendChild(domElement)

		domElement.id = 'buttonMarkersAreaReset'
		domElement.innerHTML = 'Reset-marker-area'
		domElement.href ='javascript:void(0)'

		domElement.addEventListener('click', function(){
			ARjs.MarkersAreaUtils.storeDefaultMultiMarkerFile(trackingBackend)
			location.reload()
		})
	}
}
// @namespace
var ARjs = ARjs || {}

/**
 * Create an anchor in the real world
 * 
 * @param {ARjs.Session} arSession - the session on which we create the anchor
 * @param {Object} markerParameters - parameter of this anchor
 */
ARjs.HitTesting = function(arSession){
	var _this = this
	var arContext = arSession.arContext
	var trackingBackend = arContext.parameters.trackingBackend

	this.enabled = true
	this._arSession = arSession
	this._hitTestingPlane = null
	this._hitTestingTango = null

	if( trackingBackend === 'tango' ){
		_this._hitTestingTango = new THREEx.HitTestingTango(arContext)
	}else{
		_this._hitTestingPlane = new THREEx.HitTestingPlane(arSession.arSource.domElement)
	}
}

//////////////////////////////////////////////////////////////////////////////
//		update function
//////////////////////////////////////////////////////////////////////////////
/**
 * update
 * 
 * @param {THREE.Camera} camera   - the camera to use
 * @param {THREE.Object3D} object3d - 
 */
ARjs.HitTesting.prototype.update = function (camera, pickingRoot, changeMatrixMode) {
	// if it isnt enabled, do nothing
	if( this.enabled === false )	return

	if( this._hitTestingTango !== null ){
		this._hitTestingTango.update()
	}else if( this._hitTestingPlane !== null ){
		this._hitTestingPlane.update(camera, pickingRoot, changeMatrixMode)
	}else console.assert(false)
}

//////////////////////////////////////////////////////////////////////////////
//		actual hit testing
//////////////////////////////////////////////////////////////////////////////

/**
 * Test the real world for intersections directly from a DomEvent
 * 
 * @param {Number} mouseX - position X of the hit [-1, +1]
 * @param {Number} mouseY - position Y of the hit [-1, +1]
 * @return {[ARjs.HitTesting.Result]} - array of result
 */
ARjs.HitTesting.prototype.testDomEvent = function(domEvent){
	var trackingBackend = this._arSession.arContext.parameters.trackingBackend
	var arSource = this._arSession.arSource

	// if it isnt enabled, do nothing
	if( this.enabled === false )	return []
	
	if( trackingBackend === 'tango' ){
        	var mouseX = domEvent.pageX / window.innerWidth
        	var mouseY = domEvent.pageY / window.innerHeight
	}else{		
		// FIXME should not use css!!!
		var mouseX = domEvent.layerX / parseInt(arSource.domElement.style.width)
		var mouseY = domEvent.layerY / parseInt(arSource.domElement.style.height)
	}

	return this.test(mouseX, mouseY)
}

/**
 * Test the real world for intersections.
 * 
 * @param {Number} mouseX - position X of the hit [0, +1]
 * @param {Number} mouseY - position Y of the hit [0, +1]
 * @return {[ARjs.HitTesting.Result]} - array of result
 */
ARjs.HitTesting.prototype.test = function(mouseX, mouseY){
	var arContext = this._arSession.arContext
	var trackingBackend = arContext.parameters.trackingBackend
	var hitTestResults = []

	// if it isnt enabled, do nothing
	if( this.enabled === false )	return []

	var result = null
	if( trackingBackend === 'tango' ){
		var result = this._hitTestingTango.test(mouseX, mouseY)
	}else{
		var result = this._hitTestingPlane.test(mouseX, mouseY)
	}
			
	// if no result is found, return now
	if( result === null )	return hitTestResults

	// build a ARjs.HitTesting.Result
	var hitTestResult = new ARjs.HitTesting.Result(result.position, result.quaternion, result.scale)
	hitTestResults.push(hitTestResult)
	
	return hitTestResults
}

//////////////////////////////////////////////////////////////////////////////
//		ARjs.HitTesting.Result
//////////////////////////////////////////////////////////////////////////////
/**
 * Contains the result of ARjs.HitTesting.test()
 * 
 * @param {THREE.Vector3} position - position to use
 * @param {THREE.Quaternion} quaternion - quaternion to use
 * @param {THREE.Vector3} scale - scale
 */
ARjs.HitTesting.Result = function(position, quaternion, scale){
	this.position = position
	this.quaternion = quaternion
	this.scale = scale
}

/**
 * Apply to a controlled object3d
 * 
 * @param {THREE.Object3D} object3d - the result to apply
 */
ARjs.HitTesting.Result.prototype.apply = function(object3d){
	object3d.position.copy(this.position)
	object3d.quaternion.copy(this.quaternion)
	object3d.scale.copy(this.scale)

	object3d.updateMatrix()
}

/**
 * Apply to a controlled object3d
 * 
 * @param {THREE.Object3D} object3d - the result to apply
 */
ARjs.HitTesting.Result.prototype.applyPosition = function(object3d){
	object3d.position.copy(this.position)

	object3d.updateMatrix()

	return this
}

/**
 * Apply to a controlled object3d
 * 
 * @param {THREE.Object3D} object3d - the result to apply
 */
ARjs.HitTesting.Result.prototype.applyQuaternion = function(object3d){
	object3d.quaternion.copy(this.quaternion)

	object3d.updateMatrix()

	return this
}
var ARjs = ARjs || {}

/**
 * define a ARjs.Session
 * 
 * @param {Object} parameters - parameters for this session
 */
ARjs.Session = function(parameters){
	var _this = this
	// handle default parameters
	this.parameters = {
		renderer: null,
		camera: null,
		scene: null,
		sourceParameters: {},
		contextParameters: {},
	}

	//////////////////////////////////////////////////////////////////////////////
	//		setParameters
	//////////////////////////////////////////////////////////////////////////////
	setParameters(parameters)
	function setParameters(parameters){
		if( parameters === undefined )	return
		for( var key in parameters ){
			var newValue = parameters[ key ]

			if( newValue === undefined ){
				console.warn( "THREEx.Session: '" + key + "' parameter is undefined." )
				continue
			}

			var currentValue = _this.parameters[ key ]

			if( currentValue === undefined ){
				console.warn( "THREEx.Session: '" + key + "' is not a property of this material." )
				continue
			}

			_this.parameters[ key ] = newValue
		}
	}
	// sanity check
	console.assert(this.parameters.renderer instanceof THREE.WebGLRenderer)
	console.assert(this.parameters.camera instanceof THREE.Camera)
	console.assert(this.parameters.scene instanceof THREE.Scene)
	

	// backward emulation
	Object.defineProperty(this, 'renderer', {get: function(){
		console.warn('use .parameters.renderer renderer')
		return this.parameters.renderer;
	}});
	Object.defineProperty(this, 'camera', {get: function(){
		console.warn('use .parameters.camera instead')
		return this.parameters.camera;
	}});
	Object.defineProperty(this, 'scene', {get: function(){
		console.warn('use .parameters.scene instead')
		return this.parameters.scene;
	}});

	
	// log the version
	console.log('AR.js', ARjs.Context.REVISION, '- trackingBackend:', parameters.contextParameters.trackingBackend)

	//////////////////////////////////////////////////////////////////////////////
	//		init arSource
	//////////////////////////////////////////////////////////////////////////////
	var arSource = _this.arSource = new ARjs.Source(parameters.sourceParameters)

	arSource.init(function onReady(){
		arSource.onResize(arContext, _this.parameters.renderer, _this.parameters.camera)
	})
	
	// handle resize
	window.addEventListener('resize', function(){
		arSource.onResize(arContext, _this.parameters.renderer, _this.parameters.camera)
	})	
	
	//////////////////////////////////////////////////////////////////////////////
	//		init arContext
	//////////////////////////////////////////////////////////////////////////////

	// create atToolkitContext
	var arContext = _this.arContext = new ARjs.Context(parameters.contextParameters)
	
	// initialize it
	_this.arContext.init()
	
	arContext.addEventListener('initialized', function(event){
		arSource.onResize(arContext, _this.parameters.renderer, _this.parameters.camera)
	})
	
	//////////////////////////////////////////////////////////////////////////////
	//		update function
	//////////////////////////////////////////////////////////////////////////////
	// update artoolkit on every frame
	this.update = function(){
		if( arSource.ready === false )	return
		
		arContext.update( arSource.domElement )
	}
}

ARjs.Session.prototype.onResize = function () {
	this.arSource.onResize(this.arContext, this.parameters.renderer, this.parameters.camera)	
};
// @namespace
var ARjs = ARjs || {}

ARjs.TangoPointCloud = function(arSession){
	var _this = this
	var arContext = arSession.arContext
	this.object3d = new THREE.Group

console.warn('Work only on cameraTransformMatrix - fix me - useless limitation')
	
	arContext.addEventListener('initialized', function(event){
	        var vrPointCloud = arContext._tangoContext.vrPointCloud
	        var geometry = vrPointCloud.getBufferGeometry()
	        var material = new THREE.PointsMaterial({
	                size: 0.01, 
        		// colorWrite: false, // good for occlusion
			depthWrite: false,
	        })
	        var pointsObject = new THREE.Points(geometry, material)
	        // Points are changing all the time so calculating the frustum culling volume is not very convenient.
	        pointsObject.frustumCulled = false;
	        pointsObject.renderDepth = 0;

		_this.object3d.add(pointsObject)
	})
}
// @namespace
var ARjs = ARjs || {}

ARjs.TangoVideoMesh = function(arSession){
	var arContext = arSession.arContext
	var renderer = arSession.renderer

	var videoMesh = null
	var vrDisplay = null

	// Create the see through camera scene and camera
	var sceneOrtho = new THREE.Scene()
	var cameraOrtho = new THREE.OrthographicCamera( -1, 1, 1, -1, 0, 100 )		
this._sceneOrtho = sceneOrtho
this._cameraOrtho = cameraOrtho

	// tango only - init cameraMesh
	arContext.addEventListener('initialized', function(event){
		// sanity check
		console.assert( arContext.parameters.trackingBackend === 'tango' )
		// variable declaration
		vrDisplay = arContext._tangoContext.vrDisplay
		console.assert(vrDisplay, 'vrDisplay MUST be defined')
		// if vrDisplay isnt for tango, do nothing. It may be another vrDisplay (e.g. webvr emulator in chrome)
		if( vrDisplay.displayName !== "Tango VR Device" )	return
		// init videoPlane
		videoMesh = THREE.WebAR.createVRSeeThroughCameraMesh(vrDisplay)
		sceneOrtho.add(videoMesh)
	})
	
	//////////////////////////////////////////////////////////////////////////////
	//		Code Separator
	//////////////////////////////////////////////////////////////////////////////
	
	this.update = function(){
		// sanity check
		console.assert( arContext.parameters.trackingBackend === 'tango' )
		// if not yet initialized, return now
		if( videoMesh === null )	return
		// Make sure that the camera is correctly displayed depending on the device and camera orientations.
		THREE.WebAR.updateCameraMeshOrientation(vrDisplay, videoMesh)                        		
	}
	
	//////////////////////////////////////////////////////////////////////////////
	//		Code Separator
	//////////////////////////////////////////////////////////////////////////////
	
	this.render = function(){
		// sanity check
		console.assert( arContext.parameters.trackingBackend === 'tango' )
		// render sceneOrtho
		renderer.render( sceneOrtho, cameraOrtho )
		// Render the perspective scene
		renderer.clearDepth()		
	}
}
var ARjs = ARjs || {}
ARjs.Utils = {}

/**
 * Create a default rendering camera for this trackingBackend. They may be modified later. to fit physical camera parameters
 * 
 * @param {string} trackingBackend - the tracking to user
 * @return {THREE.Camera} the created camera
 */
ARjs.Utils.createDefaultCamera = function(trackingMethod){
	var trackingBackend = this.parseTrackingMethod(trackingMethod).trackingBackend
	// Create a camera
	if( trackingBackend === 'artoolkit' ){
		var camera = new THREE.Camera();
	}else if( trackingBackend === 'aruco' ){
		var camera = new THREE.PerspectiveCamera(42, window.innerWidth / window.innerHeight, 0.01, 100);
	}else if( trackingBackend === 'tango' ){
		var camera = new THREE.PerspectiveCamera(42, window.innerWidth / window.innerHeight, 0.01, 100);
	}else console.assert(false, 'unknown trackingBackend: '+trackingBackend)

	return camera
}

/**
 * test if the code is running on tango
 * 
 * @return {boolean} - true if running on tango, false otherwise
 */
ARjs.Utils.isTango = function(){
	// FIXME: this test is super bad
	var isTango = navigator.userAgent.match('Chrome/57.0.2987.5') !== null ? true : false
	return isTango
}


/**
 * parse tracking method
 * 
 * @param {String} trackingMethod - the tracking method to parse
 * @return {Object} - various field of the tracking method
 */
ARjs.Utils.parseTrackingMethod = function(trackingMethod){

	if( trackingMethod === 'best' ){
		trackingMethod = ARjs.Utils.isTango() ? 'tango' : 'area-artoolkit'
	}	

	if( trackingMethod.startsWith('area-') ){
		return {
			trackingBackend : trackingMethod.replace('area-', ''),
			markersAreaEnabled : true,
		}
	}else{
		return {
			trackingBackend : trackingMethod,
			markersAreaEnabled : false,
		}
	}
}
var ARjs = ARjs || {}
var THREEx = THREEx || {}

ARjs.MarkersAreaControls = THREEx.ArMultiMarkerControls = function(arToolkitContext, object3d, parameters){
	var _this = this
	THREEx.ArBaseControls.call(this, object3d)
	
	if( arguments.length > 3 )	console.assert('wrong api for', THREEx.ArMultiMarkerControls)

// have a parameters in argument
	this.parameters = {
		// list of controls for each subMarker
		subMarkersControls: parameters.subMarkersControls,
		// list of pose for each subMarker relative to the origin
		subMarkerPoses: parameters.subMarkerPoses,
		// change matrix mode - [modelViewMatrix, cameraTransformMatrix]
		changeMatrixMode : parameters.changeMatrixMode !== undefined ? parameters.changeMatrixMode : 'modelViewMatrix',
	}
	
	this.object3d.visible = false
	// honor obsolete stuff - add a warning to use
	this.subMarkersControls = this.parameters.subMarkersControls
	this.subMarkerPoses = this.parameters.subMarkerPoses

	// listen to arToolkitContext event 'sourceProcessed'
	// - after we fully processed one image, aka when we know all detected poses in it
	arToolkitContext.addEventListener('sourceProcessed', function(){
		_this._onSourceProcessed()
	})
}

ARjs.MarkersAreaControls.prototype = Object.create( THREEx.ArBaseControls.prototype );
ARjs.MarkersAreaControls.prototype.constructor = ARjs.MarkersAreaControls;

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////


/**
 * What to do when a image source is fully processed
 */
ARjs.MarkersAreaControls.prototype._onSourceProcessed = function(){
	var _this = this
	var stats = {
		count: 0,
		position : {
			sum: new THREE.Vector3(0,0,0),
			average: new THREE.Vector3(0,0,0),
		},
		quaternion : {
			sum: new THREE.Quaternion(0,0,0,0),
			average: new THREE.Quaternion(0,0,0,0),
		},
		scale : {
			sum: new THREE.Vector3(0,0,0),
			average: new THREE.Vector3(0,0,0),
		},
	}

	var firstQuaternion = _this.parameters.subMarkersControls[0].object3d.quaternion

	this.parameters.subMarkersControls.forEach(function(markerControls, markerIndex){
		
		var markerObject3d = markerControls.object3d
		// if this marker is not visible, ignore it
		if( markerObject3d.visible === false )	return

		// transformation matrix of this.object3d according to this sub-markers
		var matrix = markerObject3d.matrix.clone()
		var markerPose = _this.parameters.subMarkerPoses[markerIndex]
		matrix.multiply(new THREE.Matrix4().getInverse(markerPose))

		// decompose the matrix into .position, .quaternion, .scale
		var position = new THREE.Vector3
		var quaternion = new THREE.Quaternion()
		var scale = new THREE.Vector3
		matrix.decompose(position, quaternion, scale)

		// http://wiki.unity3d.com/index.php/Averaging_Quaternions_and_Vectors
		stats.count++

		ARjs.MarkersAreaControls.averageVector3(stats.position.sum, position, stats.count, stats.position.average)
		ARjs.MarkersAreaControls.averageQuaternion(stats.quaternion.sum, quaternion, firstQuaternion, stats.count, stats.quaternion.average)
		ARjs.MarkersAreaControls.averageVector3(stats.scale.sum, scale, stats.count, stats.scale.average)
	})

	// honor _this.object3d.visible
	if( stats.count > 0 ){
		_this.object3d.visible = true
	}else{
		_this.object3d.visible = false			
	}

	// if at least one sub-marker has been detected, make the average of all detected markers
	if( stats.count > 0 ){
		// compute modelViewMatrix
		var modelViewMatrix = new THREE.Matrix4()
		modelViewMatrix.compose(stats.position.average, stats.quaternion.average, stats.scale.average)

		// change _this.object3d.matrix based on parameters.changeMatrixMode
		if( this.parameters.changeMatrixMode === 'modelViewMatrix' ){
			_this.object3d.matrix.copy(modelViewMatrix)
		}else if( this.parameters.changeMatrixMode === 'cameraTransformMatrix' ){
			_this.object3d.matrix.getInverse( modelViewMatrix )
		}else {
			console.assert(false)
		}

		// decompose - the matrix into .position, .quaternion, .scale
		_this.object3d.matrix.decompose(_this.object3d.position, _this.object3d.quaternion, _this.object3d.scale)
	}

}

//////////////////////////////////////////////////////////////////////////////
//		Utility functions
//////////////////////////////////////////////////////////////////////////////

/**
 * from http://wiki.unity3d.com/index.php/Averaging_Quaternions_and_Vectors
 */
ARjs.MarkersAreaControls.averageQuaternion = function(quaternionSum, newQuaternion, firstQuaternion, count, quaternionAverage){
	quaternionAverage = quaternionAverage || new THREE.Quaternion()
	// sanity check
	console.assert(firstQuaternion instanceof THREE.Quaternion === true)
	
	// from http://wiki.unity3d.com/index.php/Averaging_Quaternions_and_Vectors
	if( newQuaternion.dot(firstQuaternion) > 0 ){
		newQuaternion = new THREE.Quaternion(-newQuaternion.x, -newQuaternion.y, -newQuaternion.z, -newQuaternion.w)
	}

	quaternionSum.x += newQuaternion.x
	quaternionSum.y += newQuaternion.y
	quaternionSum.z += newQuaternion.z
	quaternionSum.w += newQuaternion.w
	
	quaternionAverage.x = quaternionSum.x/count
	quaternionAverage.y = quaternionSum.y/count
	quaternionAverage.z = quaternionSum.z/count
	quaternionAverage.w = quaternionSum.w/count
	
	quaternionAverage.normalize()

	return quaternionAverage
}


ARjs.MarkersAreaControls.averageVector3 = function(vector3Sum, vector3, count, vector3Average){
	vector3Average = vector3Average || new THREE.Vector3()
	
	vector3Sum.x += vector3.x
	vector3Sum.y += vector3.y
	vector3Sum.z += vector3.z
	
	vector3Average.x = vector3Sum.x / count
	vector3Average.y = vector3Sum.y / count
	vector3Average.z = vector3Sum.z / count
	
	return vector3Average
}

//////////////////////////////////////////////////////////////////////////////
//		Utility function
//////////////////////////////////////////////////////////////////////////////

/**
 * compute the center of this multimarker file
 */
ARjs.MarkersAreaControls.computeCenter = function(jsonData){
	var multiMarkerFile = JSON.parse(jsonData)
	var stats = {
		count : 0,
		position : {
			sum: new THREE.Vector3(0,0,0),
			average: new THREE.Vector3(0,0,0),						
		},
		quaternion : {
			sum: new THREE.Quaternion(0,0,0,0),
			average: new THREE.Quaternion(0,0,0,0),						
		},
		scale : {
			sum: new THREE.Vector3(0,0,0),
			average: new THREE.Vector3(0,0,0),						
		},
	}
	var firstQuaternion = new THREE.Quaternion() // FIXME ???
	
	multiMarkerFile.subMarkersControls.forEach(function(item){
		var poseMatrix = new THREE.Matrix4().fromArray(item.poseMatrix)
		
		var position = new THREE.Vector3
		var quaternion = new THREE.Quaternion
		var scale = new THREE.Vector3
		poseMatrix.decompose(position, quaternion, scale)
		
		// http://wiki.unity3d.com/index.php/Averaging_Quaternions_and_Vectors
		stats.count++

		ARjs.MarkersAreaControls.averageVector3(stats.position.sum, position, stats.count, stats.position.average)
		ARjs.MarkersAreaControls.averageQuaternion(stats.quaternion.sum, quaternion, firstQuaternion, stats.count, stats.quaternion.average)
		ARjs.MarkersAreaControls.averageVector3(stats.scale.sum, scale, stats.count, stats.scale.average)
	})
	
	var averageMatrix = new THREE.Matrix4()
	averageMatrix.compose(stats.position.average, stats.quaternion.average, stats.scale.average)

	return averageMatrix
}

ARjs.MarkersAreaControls.computeBoundingBox = function(jsonData){
	var multiMarkerFile = JSON.parse(jsonData)
	var boundingBox = new THREE.Box3()

	multiMarkerFile.subMarkersControls.forEach(function(item){
		var poseMatrix = new THREE.Matrix4().fromArray(item.poseMatrix)
		
		var position = new THREE.Vector3
		var quaternion = new THREE.Quaternion
		var scale = new THREE.Vector3
		poseMatrix.decompose(position, quaternion, scale)

		boundingBox.expandByPoint(position)
	})

	return boundingBox
}
//////////////////////////////////////////////////////////////////////////////
//		updateSmoothedControls
//////////////////////////////////////////////////////////////////////////////

ARjs.MarkersAreaControls.prototype.updateSmoothedControls = function(smoothedControls, lerpsValues){
	// handle default values
	if( lerpsValues === undefined ){
		// FIXME this parameter format is uselessly cryptic
		// lerpValues = [
		// {lerpPosition: 0.5, lerpQuaternion: 0.2, lerpQuaternion: 0.7}
		// ]
		lerpsValues = [
			[0.3+.1, 0.1, 0.3],
			[0.4+.1, 0.1, 0.4],
			[0.4+.1, 0.2, 0.5],
			[0.5+.1, 0.2, 0.7],
			[0.5+.1, 0.2, 0.7],
		]
	}
	// count how many subMarkersControls are visible
	var nVisible = 0
	this.parameters.subMarkersControls.forEach(function(markerControls, markerIndex){
		var markerObject3d = markerControls.object3d
		if( markerObject3d.visible === true )	nVisible ++
	})

	// find the good lerpValues
	if( lerpsValues[nVisible-1] !== undefined ){
		var lerpValues = lerpsValues[nVisible-1]
	}else{
		var lerpValues = lerpsValues[lerpsValues.length-1]
	}

	// modify lerpValues in smoothedControls
	smoothedControls.parameters.lerpPosition = lerpValues[0]
	smoothedControls.parameters.lerpQuaternion = lerpValues[1]
	smoothedControls.parameters.lerpScale = lerpValues[2]
}


//////////////////////////////////////////////////////////////////////////////
//		Create THREEx.ArMultiMarkerControls from JSON
//////////////////////////////////////////////////////////////////////////////

ARjs.MarkersAreaControls.fromJSON = function(arToolkitContext, parent3D, markerRoot, jsonData, parameters){
	var multiMarkerFile = JSON.parse(jsonData)
	// declare variables
	var subMarkersControls = []
	var subMarkerPoses = []
	// handle default arguments
	parameters = parameters || {}

	// prepare the parameters
	multiMarkerFile.subMarkersControls.forEach(function(item){
		// create a markerRoot
		var markerRoot = new THREE.Object3D()
		parent3D.add(markerRoot)

		// create markerControls for our markerRoot
		var subMarkerControls = new THREEx.ArMarkerControls(arToolkitContext, markerRoot, item.parameters)

// if( true ){
		// store it in the parameters
		subMarkersControls.push(subMarkerControls)
		subMarkerPoses.push(new THREE.Matrix4().fromArray(item.poseMatrix))	
// }else{
// 		// build a smoothedControls
// 		var smoothedRoot = new THREE.Group()
// 		parent3D.add(smoothedRoot)
// 		var smoothedControls = new THREEx.ArSmoothedControls(smoothedRoot, {
// 			lerpPosition : 0.1,
// 			lerpQuaternion : 0.1, 
// 			lerpScale : 0.1,
// 			minVisibleDelay: 0,
// 			minUnvisibleDelay: 0,
// 		})
// 		onRenderFcts.push(function(delta){
// 			smoothedControls.update(markerRoot)	// TODO this is a global
// 		})
// 	
// 
// 		// store it in the parameters
// 		subMarkersControls.push(smoothedControls)
// 		subMarkerPoses.push(new THREE.Matrix4().fromArray(item.poseMatrix))
// }
	})
	
	parameters.subMarkersControls = subMarkersControls
	parameters.subMarkerPoses = subMarkerPoses
	// create a new THREEx.ArMultiMarkerControls
	var multiMarkerControls = new THREEx.ArMultiMarkerControls(arToolkitContext, markerRoot, parameters)

	// return it
	return multiMarkerControls	
}
var ARjs = ARjs || {}
var THREEx = THREEx || {}

ARjs.MarkersAreaLearning = THREEx.ArMultiMakersLearning = function(arToolkitContext, subMarkersControls){
	var _this = this
	this._arToolkitContext = arToolkitContext

	// Init variables
	this.subMarkersControls = subMarkersControls
	this.enabled = true
		
	// listen to arToolkitContext event 'sourceProcessed'
	// - after we fully processed one image, aka when we know all detected poses in it
	arToolkitContext.addEventListener('sourceProcessed', function(){
		_this._onSourceProcessed()
	})
}


//////////////////////////////////////////////////////////////////////////////
//		statistic collection
//////////////////////////////////////////////////////////////////////////////

/**
 * What to do when a image source is fully processed
 */
ARjs.MarkersAreaLearning.prototype._onSourceProcessed = function(){
	var originQuaternion = this.subMarkersControls[0].object3d.quaternion
	// here collect the statistic on relative positioning 
	
	// honor this.enabled
	if( this.enabled === false )	return

	// keep only the visible markers
	var visibleMarkerControls = this.subMarkersControls.filter(function(markerControls){
		return markerControls.object3d.visible === true
	})

	var count = Object.keys(visibleMarkerControls).length

	var positionDelta = new THREE.Vector3()
	var quaternionDelta = new THREE.Quaternion()
	var scaleDelta = new THREE.Vector3()
	var tmpMatrix = new THREE.Matrix4()
	
	// go thru all the visibleMarkerControls
	for(var i = 0; i < count; i++){
		var markerControls1 = visibleMarkerControls[i]
		for(var j = 0; j < count; j++){
			var markerControls2 = visibleMarkerControls[j]

			// if markerControls1 is markerControls2, then skip it
			if( i === j )	continue


			//////////////////////////////////////////////////////////////////////////////
			//		create data in markerControls1.object3d.userData if needed
			//////////////////////////////////////////////////////////////////////////////
			// create seenCouples for markerControls1 if needed
			if( markerControls1.object3d.userData.seenCouples === undefined ){
				markerControls1.object3d.userData.seenCouples = {}
			}
			var seenCouples = markerControls1.object3d.userData.seenCouples
			// create the multiMarkerPosition average if needed`
			if( seenCouples[markerControls2.id] === undefined ){
				// console.log('create seenCouples between', markerControls1.id, 'and', markerControls2.id)
				seenCouples[markerControls2.id] = {
					count : 0,
					position : {
						sum: new THREE.Vector3(0,0,0),
						average: new THREE.Vector3(0,0,0),						
					},
					quaternion : {
						sum: new THREE.Quaternion(0,0,0,0),
						average: new THREE.Quaternion(0,0,0,0),						
					},
					scale : {
						sum: new THREE.Vector3(0,0,0),
						average: new THREE.Vector3(0,0,0),						
					},
				}
			}

			
			//////////////////////////////////////////////////////////////////////////////
			//		Compute markerControls2 position relative to markerControls1
			//////////////////////////////////////////////////////////////////////////////
			
			// compute markerControls2 position/quaternion/scale in relation with markerControls1
			tmpMatrix.getInverse(markerControls1.object3d.matrix)
			tmpMatrix.multiply(markerControls2.object3d.matrix)
			tmpMatrix.decompose(positionDelta, quaternionDelta, scaleDelta)
			
			//////////////////////////////////////////////////////////////////////////////
			//		update statistics
			//////////////////////////////////////////////////////////////////////////////
			var stats = seenCouples[markerControls2.id]
			// update the count
			stats.count++

			// update the average of position/rotation/scale
			THREEx.ArMultiMarkerControls.averageVector3(stats.position.sum, positionDelta, stats.count, stats.position.average)
			THREEx.ArMultiMarkerControls.averageQuaternion(stats.quaternion.sum, quaternionDelta, originQuaternion, stats.count, stats.quaternion.average)
			THREEx.ArMultiMarkerControls.averageVector3(stats.scale.sum, scaleDelta, stats.count, stats.scale.average)
		}
	}
}

//////////////////////////////////////////////////////////////////////////////
//		Compute markers transformation matrix from current stats
//////////////////////////////////////////////////////////////////////////////

ARjs.MarkersAreaLearning.prototype.computeResult = function(){
	var _this = this
	var originSubControls = this.subMarkersControls[0]

	this.deleteResult()

	// special case of originSubControls averageMatrix
	originSubControls.object3d.userData.result = {
		averageMatrix : new THREE.Matrix4(),
		confidenceFactor: 1,
	}
	// TODO here check if the originSubControls has been seen at least once!!
	
	
	/**
	 * ALGO in pseudo code
	 *
	 * - Set confidenceFactor of origin sub markers as 1
	 *
	 * Start Looping
	 * - For a given sub marker, skip it if it already has a result.
	 * - if no result, check all seen couple and find n ones which has a progress of 1 or more.
	 * - So the other seen sub markers, got a valid transformation matrix. 
	 * - So take local averages position/orientation/scale, compose a transformation matrix. 
	 *   - aka transformation matrix from parent matrix * transf matrix pos/orientation/scale
	 * - Multiple it by the other seen marker matrix. 
	 * - Loop on the array until one pass could not compute any new sub marker
	 */
	
	do{
		var resultChanged = false
		// loop over each subMarkerControls
		this.subMarkersControls.forEach(function(subMarkerControls){

			// if subMarkerControls already has a result, do nothing
			var result = subMarkerControls.object3d.userData.result
			var isLearned = (result !== undefined && result.confidenceFactor >= 1) ? true : false
			if( isLearned === true )	return
			
			// console.log('compute subMarkerControls', subMarkerControls.name())
			var otherSubControlsID = _this._getLearnedCoupleStats(subMarkerControls)
			if( otherSubControlsID === null ){
				// console.log('no learnedCoupleStats')
				return
			}
			
			var otherSubControls = _this._getSubMarkerControlsByID(otherSubControlsID)

			var seenCoupleStats = subMarkerControls.object3d.userData.seenCouples[otherSubControlsID]
			
			var averageMatrix = new THREE.Matrix4()
			averageMatrix.compose(seenCoupleStats.position.average, seenCoupleStats.quaternion.average, seenCoupleStats.scale.average)
				
			var otherAverageMatrix = otherSubControls.object3d.userData.result.averageMatrix

			var matrix = new THREE.Matrix4().getInverse(otherAverageMatrix).multiply(averageMatrix)
			matrix = new THREE.Matrix4().getInverse(matrix)

			console.assert( subMarkerControls.object3d.userData.result === undefined )
			subMarkerControls.object3d.userData.result = {
				averageMatrix: matrix,
				confidenceFactor: 1
			}
			
			resultChanged = true
		})
		// console.log('loop')
	}while(resultChanged === true)
	
	// debugger
	// console.log('json:', this.toJSON())
	// this.subMarkersControls.forEach(function(subMarkerControls){
	// 	var hasResult = subMarkerControls.object3d.userData.result !== undefined
	// 	console.log('marker', subMarkerControls.name(), hasResult ? 'has' : 'has NO', 'result')
	// })
}

//////////////////////////////////////////////////////////////////////////////
//		Utility function
//////////////////////////////////////////////////////////////////////////////

/** 
 * get a _this.subMarkersControls id based on markerControls.id
 */
ARjs.MarkersAreaLearning.prototype._getLearnedCoupleStats	= function(subMarkerControls){

	// if this subMarkerControls has never been seen with another subMarkerControls
	if( subMarkerControls.object3d.userData.seenCouples === undefined )	return null
	
	var seenCouples = subMarkerControls.object3d.userData.seenCouples
	var coupleControlsIDs = Object.keys(seenCouples).map(Number)

	for(var i = 0; i < coupleControlsIDs.length; i++){
		var otherSubControlsID = coupleControlsIDs[i]
		// get otherSubControls
		var otherSubControls = this._getSubMarkerControlsByID(otherSubControlsID)
			
		// if otherSubControls isnt learned, skip it
		var result = otherSubControls.object3d.userData.result
		var isLearned = (result !== undefined && result.confidenceFactor >= 1) ? true : false
		if( isLearned === false )	continue

		// return this seenCouplesStats
		return otherSubControlsID
	}
	
	// if none is found, return null
	return null
}

/** 
 * get a _this.subMarkersControls based on markerControls.id
 */
ARjs.MarkersAreaLearning.prototype._getSubMarkerControlsByID	= function(controlsID){

	for(var i = 0; i < this.subMarkersControls.length; i++){
		var subMarkerControls = this.subMarkersControls[i]
		if( subMarkerControls.id === controlsID ){
			return subMarkerControls
		}
	}

	return null
}
 //////////////////////////////////////////////////////////////////////////////
//		JSON file building
//////////////////////////////////////////////////////////////////////////////

ARjs.MarkersAreaLearning.prototype.toJSON = function(){

	// compute the average matrix before generating the file
	this.computeResult()

	//////////////////////////////////////////////////////////////////////////////
	//		actually build the json
	//////////////////////////////////////////////////////////////////////////////
	var data = {
		meta : {
			createdBy : "Area Learning - AR.js "+THREEx.ArToolkitContext.REVISION,
			createdAt : new Date().toJSON(),
			
		},
		trackingBackend: this._arToolkitContext.parameters.trackingBackend,
		subMarkersControls : [],
	}

	var originSubControls = this.subMarkersControls[0]
	var originMatrixInverse = new THREE.Matrix4().getInverse(originSubControls.object3d.matrix)
	this.subMarkersControls.forEach(function(subMarkerControls, index){
		
		// if a subMarkerControls has no result, ignore it
		if( subMarkerControls.object3d.userData.result === undefined )	return

		var poseMatrix = subMarkerControls.object3d.userData.result.averageMatrix
		console.assert(poseMatrix instanceof THREE.Matrix4)
		

		// build the info
		var info = {
			parameters : {
				// to fill ...
			},
			poseMatrix : poseMatrix.toArray(),
		}
		if( subMarkerControls.parameters.type === 'pattern' ){
			info.parameters.type = subMarkerControls.parameters.type
			info.parameters.patternUrl = subMarkerControls.parameters.patternUrl
		}else if( subMarkerControls.parameters.type === 'barcode' ){
			info.parameters.type = subMarkerControls.parameters.type
			info.parameters.barcodeValue = subMarkerControls.parameters.barcodeValue
		}else console.assert(false)

		data.subMarkersControls.push(info)
	})

	var strJSON = JSON.stringify(data, null, '\t');
	
	
	//////////////////////////////////////////////////////////////////////////////
	//		round matrix elements to ease readability - for debug
	//////////////////////////////////////////////////////////////////////////////
	var humanReadable = false
	if( humanReadable === true ){
		var tmp = JSON.parse(strJSON)
		tmp.subMarkersControls.forEach(function(markerControls){
			markerControls.poseMatrix = markerControls.poseMatrix.map(function(value){
				var roundingFactor = 100
				return Math.round(value*roundingFactor)/roundingFactor
			})
		})
		strJSON = JSON.stringify(tmp, null, '\t');
	}
	
	return strJSON;	
}

//////////////////////////////////////////////////////////////////////////////
//		utility function
//////////////////////////////////////////////////////////////////////////////

/**
 * reset all collected statistics
 */
ARjs.MarkersAreaLearning.prototype.resetStats = function(){
	this.deleteResult()
	
	this.subMarkersControls.forEach(function(markerControls){
		delete markerControls.object3d.userData.seenCouples
	})
}
/**
 * reset all collected statistics
 */
ARjs.MarkersAreaLearning.prototype.deleteResult = function(){
	this.subMarkersControls.forEach(function(markerControls){
		delete markerControls.object3d.userData.result
	})
}
var THREEx = THREEx || {}

var ARjs = ARjs || {}
var THREEx = THREEx || {}

ARjs.MarkersAreaUtils = THREEx.ArMultiMarkerUtils = {}

//////////////////////////////////////////////////////////////////////////////
//		navigateToLearnerPage
//////////////////////////////////////////////////////////////////////////////

/**
 * Navigate to the multi-marker learner page
 * 
 * @param {String} learnerBaseURL  - the base url for the learner
 * @param {String} trackingBackend - the tracking backend to use
 */
ARjs.MarkersAreaUtils.navigateToLearnerPage = function(learnerBaseURL, trackingBackend){
	var learnerParameters = {
		backURL : location.href,
		trackingBackend: trackingBackend,
		markersControlsParameters: ARjs.MarkersAreaUtils.createDefaultMarkersControlsParameters(trackingBackend),
	}
	location.href = learnerBaseURL + '#' + encodeURIComponent(JSON.stringify(learnerParameters))
}

//////////////////////////////////////////////////////////////////////////////
//		DefaultMultiMarkerFile
//////////////////////////////////////////////////////////////////////////////

/**
 * Create and store a default multi-marker file
 * 
 * @param {String} trackingBackend - the tracking backend to use
 */
ARjs.MarkersAreaUtils.storeDefaultMultiMarkerFile = function(trackingBackend){
	var file = ARjs.MarkersAreaUtils.createDefaultMultiMarkerFile(trackingBackend)
	// json.strinfy the value and store it in localStorage
	localStorage.setItem('ARjsMultiMarkerFile', JSON.stringify(file))
}



/**
 * Create a default multi-marker file
 * @param {String} trackingBackend - the tracking backend to use
 * @return {Object} - json object of the multi-marker file
 */
ARjs.MarkersAreaUtils.createDefaultMultiMarkerFile = function(trackingBackend){
	console.assert(trackingBackend)
	if( trackingBackend === undefined )	debugger
	
	// create absoluteBaseURL
	var link = document.createElement('a')
	link.href = ARjs.Context.baseURL
	var absoluteBaseURL = link.href

	// create the base file
	var file = {
		meta : {
			createdBy : "AR.js Default Marker "+ARjs.Context.REVISION,
			createdAt : new Date().toJSON(),
		},
		trackingBackend : trackingBackend,
		subMarkersControls : [
			// empty for now... being filled 
		]
	}
	// add a subMarkersControls
	file.subMarkersControls[0] = {
		parameters: {},
		poseMatrix: new THREE.Matrix4().makeTranslation(0,0, 0).toArray(),
	}
	if( trackingBackend === 'artoolkit' ){
		file.subMarkersControls[0].parameters.type = 'pattern'
		file.subMarkersControls[0].parameters.patternUrl = absoluteBaseURL + 'examples/marker-training/examples/pattern-files/pattern-hiro.patt'
	}else if( trackingBackend === 'aruco' ){
		file.subMarkersControls[0].parameters.type = 'barcode'
		file.subMarkersControls[0].parameters.barcodeValue = 1001
	}else console.assert(false)
	
	// json.strinfy the value and store it in localStorage
	return file
}

//////////////////////////////////////////////////////////////////////////////
//		createDefaultMarkersControlsParameters
//////////////////////////////////////////////////////////////////////////////

/**
 * Create a default controls parameters for the multi-marker learner
 * 
 * @param {String} trackingBackend - the tracking backend to use
 * @return {Object} - json object containing the controls parameters
 */
ARjs.MarkersAreaUtils.createDefaultMarkersControlsParameters = function(trackingBackend){
	// create absoluteBaseURL
	var link = document.createElement('a')
	link.href = ARjs.Context.baseURL
	var absoluteBaseURL = link.href


	if( trackingBackend === 'artoolkit' ){
		// pattern hiro/kanji/a/b/c/f
		var markersControlsParameters = [
			{
				type : 'pattern',
				patternUrl : absoluteBaseURL + 'examples/marker-training/examples/pattern-files/pattern-hiro.patt',
			},
			{
				type : 'pattern',
				patternUrl : absoluteBaseURL + 'examples/marker-training/examples/pattern-files/pattern-kanji.patt',
			},
			{
				type : 'pattern',
				patternUrl : absoluteBaseURL + 'examples/marker-training/examples/pattern-files/pattern-letterA.patt',
			},
			{
				type : 'pattern',
				patternUrl : absoluteBaseURL + 'examples/marker-training/examples/pattern-files/pattern-letterB.patt',
			},
			{
				type : 'pattern',
				patternUrl : absoluteBaseURL + 'examples/marker-training/examples/pattern-files/pattern-letterC.patt',
			},
			{
				type : 'pattern',
				patternUrl : absoluteBaseURL + 'examples/marker-training/examples/pattern-files/pattern-letterF.patt',
			},
		]		
	}else if( trackingBackend === 'aruco' ){
		var markersControlsParameters = [
			{
				type : 'barcode',
				barcodeValue: 1001,
			},
			{
				type : 'barcode',
				barcodeValue: 1002,
			},
			{
				type : 'barcode',
				barcodeValue: 1003,
			},
			{
				type : 'barcode',
				barcodeValue: 1004,
			},
			{
				type : 'barcode',
				barcodeValue: 1005,
			},
			{
				type : 'barcode',
				barcodeValue: 1006,
			},
		]
	}else console.assert(false)
	return markersControlsParameters
}
// @namespace
var ARjs = ARjs || {}

ARjs.Babylon = {}

ARjs.Babylon.init = function(babylonEngine, babylonScene, babylonCamera){
	var trackingMethod = 'area-artoolkit'
	var arProfile = new ARjs.Profile()
		.sourceWebcam()
		.trackingMethod(trackingMethod)
		.changeMatrixMode('cameraTransformMatrix')
		.defaultMarker()
		.checkIfValid()

	
	var bARSession = new ARjs.Babylon.Session(arProfile, canvas)
	var arSession = bARSession._arSession
	engine.runRenderLoop(function(){
		bARSession.updateProjectionMatrix(babylonCamera)
		bARSession.update()
	})

	////////////////////////////////////////////////////////////////////////////////
	//          Create a ARjs.Anchor
	////////////////////////////////////////////////////////////////////////////////
	var arAnchor = new ARjs.Anchor(bARSession._arSession, arProfile.defaultMarkerParameters)
	engine.runRenderLoop(function(){
		bARSession.updateAnchor(arAnchor, babylonCamera)
	})

	
	// add three.js debug
	// ARjs.Babylon._addThreejsDebug(bARSession, arAnchor)

	//////////////////////////////////////////////////////////////////////////////
	//		tango specifics
	//////////////////////////////////////////////////////////////////////////////
	
	if( arProfile.contextParameters.trackingBackend === 'tango' ){
		// init tangoVideoMesh
		var tangoVideoMesh = new ARjs.TangoVideoMesh(arSession)
		onRenderFcts.push(function(){
			tangoVideoMesh.update()
		})
	}

	if( arProfile.contextParameters.trackingBackend === 'tango' ){
		// init tangoPointCloud
		var tangoPointCloud = new ARjs.TangoPointCloud(arSession)
		scene.add(tangoPointCloud.object3d)
	}

	//////////////////////////////////////////////////////////////////////////////
	//		DebugUI
	//////////////////////////////////////////////////////////////////////////////

	// create arjsDebugUIContainer if needed
	if( document.querySelector('#arjsDebugUIContainer') === null ){
		var domElement = document.createElement('div')
		domElement.id = 'arjsDebugUIContainer'
		domElement.setAttribute('style', 'position: fixed; bottom: 10px; width:100%; text-align: center; z-index: 1;color: grey;')
		document.body.appendChild(domElement)
	}


	var sessionDebugUI = new ARjs.SessionDebugUI(arSession, tangoPointCloud)
	document.querySelector('#arjsDebugUIContainer').appendChild(sessionDebugUI.domElement)

	var anchorDebugUI = new ARjs.AnchorDebugUI(arAnchor)
	document.querySelector('#arjsDebugUIContainer').appendChild(anchorDebugUI.domElement)
}

ARjs.Babylon.Session = function(arProfile, canvasElement){
	// init renderer
	var renderer	= new THREE.WebGLRenderer({
		antialias: true,
		alpha: true
	})
	renderer.setClearColor(new THREE.Color('lightgrey'), 0)
	renderer.setSize( 640, 480 )
	renderer.domElement.style.position = 'absolute'
	renderer.domElement.style.top = '0px'
	renderer.domElement.style.left = '0px'
// NOTE: can i avoid to have a renderer ?


	// init scene and camera
	var scene	= new THREE.Scene()

	var trackingMethod = 'area-artoolkit'

	//////////////////////////////////////////////////////////////////////////////////
	//		Initialize the camera
	//////////////////////////////////////////////////////////////////////////////////

	var camera = ARjs.Utils.createDefaultCamera(trackingMethod)
	scene.add(camera)

	//////////////////////////////////////////////////////////////////////////////
	//		build ARjs.Session
	//////////////////////////////////////////////////////////////////////////////
// NOTE: this goes directly in 
	var arSession = new ARjs.Session({
		scene: scene,
		renderer: renderer,
		camera: camera,
		sourceParameters: arProfile.sourceParameters,
		contextParameters: arProfile.contextParameters		
	})

	//////////////////////////////////////////////////////////////////////////////
	//		tango specifics
	//////////////////////////////////////////////////////////////////////////////
	
	if( arProfile.contextParameters.trackingBackend === 'tango' ){
		// init tangoVideoMesh
		var tangoVideoMesh = new ARjs.TangoVideoMesh(arSession)
		onRenderFcts.push(function(){
			tangoVideoMesh.update()
		})
	}

	if( arProfile.contextParameters.trackingBackend === 'tango' ){
		// init tangoPointCloud
		var tangoPointCloud = new ARjs.TangoPointCloud(arSession)
		scene.add(tangoPointCloud.object3d)
	}

	
	//////////////////////////////////////////////////////////////////////////////
	//		Code Separator
	//////////////////////////////////////////////////////////////////////////////


	this.update = function(){

		arSession.update()		
		scene.updateMatrixWorld()

		// resize babylon canvas - put that in bARSession
		arSession.arSource.copyElementSizeTo(canvasElement)
	}


	this._tangoPointCloud = tangoPointCloud
	this._tangoVideoMesh = tangoVideoMesh
	this._renderer = renderer
	this._scene = scene
	this._camera = camera
	this._arSession = arSession

}

ARjs.Babylon.Session.prototype.updateAnchor = function(arAnchor, babylonCamera){
	var threejsCamera = this._camera

	arAnchor.update()
	ARjs.Babylon.updateObjectPose(babylonCamera, threejsCamera)
}

ARjs.Babylon.Session.prototype.updateProjectionMatrix = function(babylonCamera){
	var projectionMatrixArr = this._camera.projectionMatrix.toArray()
	var babylonMatrix = BABYLON.Matrix.FromArray(projectionMatrixArr)
	babylonCamera.freezeProjectionMatrix(babylonMatrix)
}

//////////////////////////////////////////////////////////////////////////////
//		Code Separator
//////////////////////////////////////////////////////////////////////////////

ARjs.Babylon.createCamera = function(scene){
	var babylonCamera = new BABYLON.ArcRotateCamera("blabla",  0, 0, 0, new BABYLON.Vector3(0, 0, -1), scene);

	// hard code a fov which is kinda similar to default camera
	// scene.activeCamera.fovmode = BABYLON.Camera.fovmode_HORIZONTAL_FIXED;
	// scene.activeCamera.fov = 2*22 / 180*Math.PI

	return babylonCamera
}

ARjs.Babylon.updateCamera = function(babylonCamera, threeCamera){
	var projectionMatrixArr = threeCamera.projectionMatrix.toArray()
	var babylonMatrix = BABYLON.Matrix.FromArray(projectionMatrixArr)
	babylonCamera.freezeProjectionMatrix(babylonMatrix)
}

ARjs.Babylon.updateObjectPose = function(babylonObject3D, threeObject3D){
	threeObject3D.updateMatrixWorld()

	// use modelViewMatrix
	var modelViewMatrix = threeObject3D.matrix
	babylonObject3D._computedViewMatrix = new BABYLON.Matrix.FromArray(modelViewMatrix.toArray());
	babylonObject3D._computedViewMatrix.invert()	
}

// function initRenderThreejs
ARjs.Babylon._addThreejsDebug = function(bARSession, arAnchor){
	// array of functions for the rendering loop
	var onRenderFcts= [];

	//////////////////////////////////////////////////////////////////////////////////
	//		add an object in the scene
	//////////////////////////////////////////////////////////////////////////////////
	
	var scene = bARSession._scene
	var renderer = bARSession._renderer
	var camera = bARSession._camera
	
	var arWorldRoot = arAnchor.object3d
	
	// add a torus knot	
	var geometry	= new THREE.CubeGeometry(1,1,1)
	var material	= new THREE.MeshNormalMaterial({
		transparent : true,
		opacity: 0.5,
		side: THREE.DoubleSide
	}) 
	var mesh	= new THREE.Mesh( geometry, material )
	mesh.position.y	= geometry.parameters.height/2
	arWorldRoot.add( mesh )
	
	var geometry	= new THREE.TorusKnotGeometry(0.3,0.1,64,16)
	var material	= new THREE.MeshNormalMaterial() 
	var mesh	= new THREE.Mesh( geometry, material )
	mesh.position.y	= 0.5
	arWorldRoot.add( mesh )
	
	onRenderFcts.push(function(delta){
		mesh.rotation.x += Math.PI*delta
	})
	
	//////////////////////////////////////////////////////////////////////////////////
	//		render the whole thing on the page
	//////////////////////////////////////////////////////////////////////////////////
	
	if( true ){
		document.body.appendChild( renderer.domElement )
		onRenderFcts.push(function(){
			renderer.render( scene, camera )
		})		
	}

	// run the rendering loop
	var lastTimeMsec= null
	requestAnimationFrame(function animate(nowMsec){
		// keep looping
		requestAnimationFrame( animate )
		// measure time
		lastTimeMsec	= lastTimeMsec || nowMsec-1000/60
		var deltaMsec	= Math.min(200, nowMsec - lastTimeMsec)
		lastTimeMsec	= nowMsec
		// call each update function
		onRenderFcts.forEach(function(onRenderFct){
			onRenderFct(deltaMsec/1000, nowMsec/1000)
		})
	})
	
}