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

THREE.Face4 = function ( a, b, c, d, normal, color ) {

	this.a = a;
	this.b = b;
	this.c = c;
	this.d = d;

	this.normal = normal || new THREE.Vector3();
	this.screen = new THREE.Vector3();

	this.color = color || new THREE.Color( 0x000000 );

};

THREE.Face4.prototype = {

	toString: function () {

		return 'THREE.Face4 ( ' + this.a + ', ' + this.b + ', ' + this.c + ' ' + this.d + ' )';

	},
	
	getCenter : function(){

	  return this.a.clone().addSelf(this.b).addSelf(this.c).addSelf(this.d).divideScalar(4);

	}

  
}