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three.js

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提交 e86ff343 编写于 作者: M Mugen87
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examples/files.js
浏览文件 @ e86ff343
......@@ -369,7 +369,6 @@ var files = {
"misc_exporter_gltf",
"misc_exporter_obj",
"misc_exporter_stl",
"misc_fps",
"misc_lookat",
],
"css2d": [
......
examples/misc_fps.html 已删除 100644 → 0
浏览文件 @ f5780f2a
<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js - platformer demo</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info"><a href="http://threejs.org" target="_blank" rel="noopener">three.js</a> - platformer demo. cubemap by <a href="http://www.zfight.com/" target="_blank" rel="noopener">Jochum Skoglund</a>.<br />Use arrow keys to look around, WASD to move and SPACE to jump.</div>
<script type="module">
import * as THREE from '../build/three.module.js';
// player motion parameters
var motion = {
airborne: false,
position: new THREE.Vector3(), velocity: new THREE.Vector3(),
rotation: new THREE.Vector2(), spinning: new THREE.Vector2()
};
motion.position.y = - 150;
// game systems code
var resetPlayer = function () {
if ( motion.position.y < - 123 ) {
motion.position.set( - 2, 7.7, 25 );
motion.velocity.multiplyScalar( 0 );
}
};
var keyboardControls = ( function () {
var keys = { SP: 32, W: 87, A: 65, S: 83, D: 68, UP: 38, LT: 37, DN: 40, RT: 39 };
var keysPressed = {};
( function ( watchedKeyCodes ) {
var handler = function ( down ) {
return function ( e ) {
var index = watchedKeyCodes.indexOf( e.keyCode );
if ( index >= 0 ) {
keysPressed[ watchedKeyCodes[ index ] ] = down;
e.preventDefault();
}
};
};
window.addEventListener( "keydown", handler( true ), false );
window.addEventListener( "keyup", handler( false ), false );
} )( [
keys.SP, keys.W, keys.A, keys.S, keys.D, keys.UP, keys.LT, keys.DN, keys.RT
] );
var forward = new THREE.Vector3();
var sideways = new THREE.Vector3();
return function () {
if ( ! motion.airborne ) {
// look around
var sx = keysPressed[ keys.UP ] ? 0.03 : ( keysPressed[ keys.DN ] ? - 0.03 : 0 );
var sy = keysPressed[ keys.LT ] ? 0.03 : ( keysPressed[ keys.RT ] ? - 0.03 : 0 );
if ( Math.abs( sx ) >= Math.abs( motion.spinning.x ) ) motion.spinning.x = sx;
if ( Math.abs( sy ) >= Math.abs( motion.spinning.y ) ) motion.spinning.y = sy;
// move around
forward.set( Math.sin( motion.rotation.y ), 0, Math.cos( motion.rotation.y ) );
sideways.set( forward.z, 0, - forward.x );
forward.multiplyScalar( keysPressed[ keys.W ] ? - 0.1 : ( keysPressed[ keys.S ] ? 0.1 : 0 ) );
sideways.multiplyScalar( keysPressed[ keys.A ] ? - 0.1 : ( keysPressed[ keys.D ] ? 0.1 : 0 ) );
var combined = forward.add( sideways );
if ( Math.abs( combined.x ) >= Math.abs( motion.velocity.x ) ) motion.velocity.x = combined.x;
if ( Math.abs( combined.y ) >= Math.abs( motion.velocity.y ) ) motion.velocity.y = combined.y;
if ( Math.abs( combined.z ) >= Math.abs( motion.velocity.z ) ) motion.velocity.z = combined.z;
//jump
var vy = keysPressed[ keys.SP ] ? 0.7 : 0;
motion.velocity.y += vy;
}
};
} )();
var jumpPads = ( function () {
var pads = [ new THREE.Vector3( - 17.5, 8, - 10 ), new THREE.Vector3( 17.5, 8, - 10 ), new THREE.Vector3( 0, 8, 21 ) ];
var temp = new THREE.Vector3();
return function () {
if ( ! motion.airborne ) {
for ( var j = 0, n = pads.length; j < n; j ++ ) {
if ( pads[ j ].distanceToSquared( motion.position ) < 2.3 ) {
// calculate velocity towards another side of platform from jump pad position
temp.copy( pads[ j ] );
temp.y = 0;
temp.setLength( - 0.8 );
temp.y = 0.7;
motion.airborne = true;
motion.velocity.copy( temp );
break;
}
}
}
};
} )();
var applyPhysics = ( function () {
var timeStep = 5;
var timeLeft = timeStep + 1;
var birdsEye = 100;
var kneeDeep = 0.4;
var raycaster = new THREE.Raycaster();
raycaster.ray.direction.set( 0, - 1, 0 );
var angles = new THREE.Vector2();
var displacement = new THREE.Vector3();
return function ( dt ) {
var platform = scene.getObjectByName( "platform", true );
if ( platform ) {
timeLeft += dt;
// run several fixed-step iterations to approximate varying-step
dt = 5;
while ( timeLeft >= dt ) {
var time = 0.3, damping = 0.93, gravity = 0.01, tau = 2 * Math.PI;
raycaster.ray.origin.copy( motion.position );
raycaster.ray.origin.y += birdsEye;
var hits = raycaster.intersectObject( platform );
motion.airborne = true;
// are we above, or at most knee deep in, the platform?
if ( ( hits.length > 0 ) && ( hits[ 0 ].face.normal.y > 0 ) ) {
var actualHeight = hits[ 0 ].distance - birdsEye;
// collision: stick to the surface if landing on it
if ( ( motion.velocity.y <= 0 ) && ( Math.abs( actualHeight ) < kneeDeep ) ) {
motion.position.y -= actualHeight;
motion.velocity.y = 0;
motion.airborne = false;
}
}
if ( motion.airborne ) motion.velocity.y -= gravity;
angles.copy( motion.spinning ).multiplyScalar( time );
if ( ! motion.airborne ) motion.spinning.multiplyScalar( damping );
displacement.copy( motion.velocity ).multiplyScalar( time );
if ( ! motion.airborne ) motion.velocity.multiplyScalar( damping );
motion.rotation.add( angles );
motion.position.add( displacement );
// limit the tilt at ±0.4 radians
motion.rotation.x = Math.max( - 0.4, Math.min( + 0.4, motion.rotation.x ) );
// wrap horizontal rotation to 0...2π
motion.rotation.y += tau;
motion.rotation.y %= tau;
timeLeft -= dt;
}
}
};
} )();
var updateCamera = ( function () {
var euler = new THREE.Euler( 0, 0, 0, 'YXZ' );
return function () {
euler.x = motion.rotation.x;
euler.y = motion.rotation.y;
camera.quaternion.setFromEuler( euler );
camera.position.copy( motion.position );
camera.position.y += 3.0;
};
} )();
// init 3D stuff
function makePlatform( url ) {
var placeholder = new THREE.Object3D();
var loader = new THREE.ObjectLoader();
loader.load( url, function ( platform ) {
placeholder.add( platform );
} );
return placeholder;
}
var renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setPixelRatio( window.devicePixelRatio );
document.body.appendChild( renderer.domElement );
var camera = new THREE.PerspectiveCamera( 60, 1, 0.1, 9000 );
var scene = new THREE.Scene();
var envMap = new THREE.CubeTextureLoader().load( [
'textures/cube/skybox/px.jpg', // right
'textures/cube/skybox/nx.jpg', // left
'textures/cube/skybox/py.jpg', // top
'textures/cube/skybox/ny.jpg', // bottom
'textures/cube/skybox/pz.jpg', // back
'textures/cube/skybox/nz.jpg' // front
] );
envMap.format = THREE.RGBFormat;
scene.background = envMap;
scene.add( makePlatform(
'models/json/platform/platform.json'
) );
// start the game
var start = function ( gameLoop, gameViewportSize ) {
var resize = function () {
var viewport = gameViewportSize();
renderer.setSize( viewport.width, viewport.height );
camera.aspect = viewport.width / viewport.height;
camera.updateProjectionMatrix();
};
window.addEventListener( 'resize', resize, false );
resize();
var lastTimeStamp;
var render = function ( timeStamp ) {
var timeElapsed = lastTimeStamp ? timeStamp - lastTimeStamp : 0;
lastTimeStamp = timeStamp;
// call our game loop with the time elapsed since last rendering, in ms
gameLoop( timeElapsed );
renderer.render( scene, camera );
requestAnimationFrame( render );
};
requestAnimationFrame( render );
};
var gameLoop = function ( dt ) {
resetPlayer();
keyboardControls();
jumpPads();
applyPhysics( dt );
updateCamera();
};
var gameViewportSize = function () {
return {
width: window.innerWidth, height: window.innerHeight
};
};
start( gameLoop, gameViewportSize );
</script>
</body>
</html>
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