text: /**
   * @author James Baicoianu / http://www.baicoianu.com/
   */
  
  THREE.FlyControls = function ( object, domElement ) {
  
  	this.object = object;
  
  	this.domElement = ( domElement !== undefined ) ? domElement : document;
  	if ( domElement ) this.domElement.setAttribute( 'tabindex', -1 );
  
  	// API
  
  	this.movementSpeed = 1.0;
  	this.rollSpeed = 0.005;
  
  	this.dragToLook = false;
  	this.autoForward = false;
  
  	// disable default target object behavior
  
  	// internals
  
  	this.tmpQuaternion = new THREE.Quaternion();
  
  	this.mouseStatus = 0;
  
  	this.moveState = { up: 0, down: 0, left: 0, right: 0, forward: 0, back: 0, pitchUp: 0, pitchDown: 0, yawLeft: 0, yawRight: 0, rollLeft: 0, rollRight: 0 };
  	this.moveVector = new THREE.Vector3( 0, 0, 0 );
  	this.rotationVector = new THREE.Vector3( 0, 0, 0 );
  
  	this.handleEvent = function ( event ) {
  
  		if ( typeof this[ event.type ] == 'function' ) {
  
  			this[ event.type ]( event );
  
  		}
  
  	};
  
  	this.keydown = function( event ) {
  
  		if ( event.altKey ) {
  
  			return;
  
  		}
  
  		//event.preventDefault();
  
  		switch ( event.keyCode ) {
  
  			case 16: /* shift */ this.movementSpeedMultiplier = .1; break;
  
  			case 87: /*W*/ this.moveState.forward = 1; break;
  			case 83: /*S*/ this.moveState.back = 1; break;
  
  			case 65: /*A*/ this.moveState.left = 1; break;
  			case 68: /*D*/ this.moveState.right = 1; break;
  
  			case 82: /*R*/ this.moveState.up = 1; break;
  			case 70: /*F*/ this.moveState.down = 1; break;
  
  			case 38: /*up*/ this.moveState.pitchUp = 1; break;
  			case 40: /*down*/ this.moveState.pitchDown = 1; break;
  
  			case 37: /*left*/ this.moveState.yawLeft = 1; break;
  			case 39: /*right*/ this.moveState.yawRight = 1; break;
  
  			case 81: /*Q*/ this.moveState.rollLeft = 1; break;
  			case 69: /*E*/ this.moveState.rollRight = 1; break;
  
  		}
  
  		this.updateMovementVector();
  		this.updateRotationVector();
  
  	};
  
  	this.keyup = function( event ) {
  
  		switch( event.keyCode ) {
  
  			case 16: /* shift */ this.movementSpeedMultiplier = 1; break;
  
  			case 87: /*W*/ this.moveState.forward = 0; break;
  			case 83: /*S*/ this.moveState.back = 0; break;
  
  			case 65: /*A*/ this.moveState.left = 0; break;
  			case 68: /*D*/ this.moveState.right = 0; break;
  
  			case 82: /*R*/ this.moveState.up = 0; break;
  			case 70: /*F*/ this.moveState.down = 0; break;
  
  			case 38: /*up*/ this.moveState.pitchUp = 0; break;
  			case 40: /*down*/ this.moveState.pitchDown = 0; break;
  
  			case 37: /*left*/ this.moveState.yawLeft = 0; break;
  			case 39: /*right*/ this.moveState.yawRight = 0; break;
  
  			case 81: /*Q*/ this.moveState.rollLeft = 0; break;
  			case 69: /*E*/ this.moveState.rollRight = 0; break;
  
  		}
  
  		this.updateMovementVector();
  		this.updateRotationVector();
  
  	};
  
  	this.mousedown = function( event ) {
  
  		if ( this.domElement !== document ) {
  
  			this.domElement.focus();
  
  		}
  
  		event.preventDefault();
  		event.stopPropagation();
  
  		if ( this.dragToLook ) {
  
  			this.mouseStatus ++;
  
  		} else {
  
  			switch ( event.button ) {
  
  				case 0: this.moveState.forward = 1; break;
  				case 2: this.moveState.back = 1; break;
  
  			}
  
  			this.updateMovementVector();
  
  		}
  
  	};
  
  	this.mousemove = function( event ) {
  
  		if ( !this.dragToLook || this.mouseStatus > 0 ) {
  
  			var container = this.getContainerDimensions();
  			var halfWidth  = container.size[ 0 ] / 2;
  			var halfHeight = container.size[ 1 ] / 2;
  
  			this.moveState.yawLeft   = - ( ( event.pageX - container.offset[ 0 ] ) - halfWidth  ) / halfWidth;
  			this.moveState.pitchDown =   ( ( event.pageY - container.offset[ 1 ] ) - halfHeight ) / halfHeight;
  
  			this.updateRotationVector();
  
  		}
  
  	};
  
  	this.mouseup = function( event ) {
  
  		event.preventDefault();
  		event.stopPropagation();
  
  		if ( this.dragToLook ) {
  
  			this.mouseStatus --;
  
  			this.moveState.yawLeft = this.moveState.pitchDown = 0;
  
  		} else {
  
  			switch ( event.button ) {
  
  				case 0: this.moveState.forward = 0; break;
  				case 2: this.moveState.back = 0; break;
  
  			}
  
  			this.updateMovementVector();
  
  		}
  
  		this.updateRotationVector();
  
  	};
  
  	this.update = function( delta ) {
  
  		var moveMult = delta * this.movementSpeed;
  		var rotMult = delta * this.rollSpeed;
  
  		this.object.translateX( this.moveVector.x * moveMult );
  		this.object.translateY( this.moveVector.y * moveMult );
  		this.object.translateZ( this.moveVector.z * moveMult );
  
  		this.tmpQuaternion.set( this.rotationVector.x * rotMult, this.rotationVector.y * rotMult, this.rotationVector.z * rotMult, 1 ).normalize();
  		this.object.quaternion.multiply( this.tmpQuaternion );
  
  		// expose the rotation vector for convenience
  		this.object.rotation.setFromQuaternion( this.object.quaternion, this.object.rotation.order );
  
  
  	};
  
  	this.updateMovementVector = function() {
  
  		var forward = ( this.moveState.forward || ( this.autoForward && !this.moveState.back ) ) ? 1 : 0;
  
  		this.moveVector.x = ( -this.moveState.left    + this.moveState.right );
  		this.moveVector.y = ( -this.moveState.down    + this.moveState.up );
  		this.moveVector.z = ( -forward + this.moveState.back );
  
  		//console.log( 'move:', [ this.moveVector.x, this.moveVector.y, this.moveVector.z ] );
  
  	};
  
  	this.updateRotationVector = function() {
  
  		this.rotationVector.x = ( -this.moveState.pitchDown + this.moveState.pitchUp );
  		this.rotationVector.y = ( -this.moveState.yawRight  + this.moveState.yawLeft );
  		this.rotationVector.z = ( -this.moveState.rollRight + this.moveState.rollLeft );
  
  		//console.log( 'rotate:', [ this.rotationVector.x, this.rotationVector.y, this.rotationVector.z ] );
  
  	};
  
  	this.getContainerDimensions = function() {
  
  		if ( this.domElement != document ) {
  
  			return {
  				size	: [ this.domElement.offsetWidth, this.domElement.offsetHeight ],
  				offset	: [ this.domElement.offsetLeft,  this.domElement.offsetTop ]
  			};
  
  		} else {
  
  			return {
  				size	: [ window.innerWidth, window.innerHeight ],
  				offset	: [ 0, 0 ]
  			};
  
  		}
  
  	};
  
  	function bind( scope, fn ) {
  
  		return function () {
  
  			fn.apply( scope, arguments );
  
  		};
  
  	};
  
  	this.domElement.addEventListener( 'contextmenu', function ( event ) { event.preventDefault(); }, false );
  
  	this.domElement.addEventListener( 'mousemove', bind( this, this.mousemove ), false );
  	this.domElement.addEventListener( 'mousedown', bind( this, this.mousedown ), false );
  	this.domElement.addEventListener( 'mouseup',   bind( this, this.mouseup ), false );
  
  	window.addEventListener( 'keydown', bind( this, this.keydown ), false );
  	window.addEventListener( 'keyup',   bind( this, this.keyup ), false );
  
  	this.updateMovementVector();
  	this.updateRotationVector();
  
  };
  