https://github.com/WWBN/AVideo/issues/8713

node_modules/three/examples/js/controls/DeviceOrientationControls.js

@@ -0,0 +1,149 @@
+/**
+ * W3C Device Orientation control (http://w3c.github.io/deviceorientation/spec-source-orientation.html)
+ */
+
+THREE.DeviceOrientationControls = function ( object ) {
+
+	var scope = this;
+	var changeEvent = { type: 'change' };
+	var EPS = 0.000001;
+
+	this.object = object;
+	this.object.rotation.reorder( 'YXZ' );
+
+	this.enabled = true;
+
+	this.deviceOrientation = {};
+	this.screenOrientation = 0;
+
+	this.alphaOffset = 0; // radians
+
+	var onDeviceOrientationChangeEvent = function ( event ) {
+
+		scope.deviceOrientation = event;
+
+	};
+
+	var onScreenOrientationChangeEvent = function () {
+
+		scope.screenOrientation = window.orientation || 0;
+
+	};
+
+	// The angles alpha, beta and gamma form a set of intrinsic Tait-Bryan angles of type Z-X'-Y''
+
+	var setObjectQuaternion = function () {
+
+		var zee = new THREE.Vector3( 0, 0, 1 );
+
+		var euler = new THREE.Euler();
+
+		var q0 = new THREE.Quaternion();
+
+		var q1 = new THREE.Quaternion( - Math.sqrt( 0.5 ), 0, 0, Math.sqrt( 0.5 ) ); // - PI/2 around the x-axis
+
+		return function ( quaternion, alpha, beta, gamma, orient ) {
+
+			euler.set( beta, alpha, - gamma, 'YXZ' ); // 'ZXY' for the device, but 'YXZ' for us
+
+			quaternion.setFromEuler( euler ); // orient the device
+
+			quaternion.multiply( q1 ); // camera looks out the back of the device, not the top
+
+			quaternion.multiply( q0.setFromAxisAngle( zee, - orient ) ); // adjust for screen orientation
+
+		};
+
+	}();
+
+	this.connect = function () {
+
+		onScreenOrientationChangeEvent(); // run once on load
+
+		// iOS 13+
+
+		if ( window.DeviceOrientationEvent !== undefined && typeof window.DeviceOrientationEvent.requestPermission === 'function' ) {
+
+			window.DeviceOrientationEvent.requestPermission().then( function ( response ) {
+
+				if ( response == 'granted' ) {
+
+					window.addEventListener( 'orientationchange', onScreenOrientationChangeEvent );
+					window.addEventListener( 'deviceorientation', onDeviceOrientationChangeEvent );
+
+				}
+
+			} ).catch( function ( error ) {
+
+				console.error( 'THREE.DeviceOrientationControls: Unable to use DeviceOrientation API:', error );
+
+			} );
+
+		} else {
+
+			window.addEventListener( 'orientationchange', onScreenOrientationChangeEvent );
+			window.addEventListener( 'deviceorientation', onDeviceOrientationChangeEvent );
+
+		}
+
+		scope.enabled = true;
+
+	};
+
+	this.disconnect = function () {
+
+		window.removeEventListener( 'orientationchange', onScreenOrientationChangeEvent );
+		window.removeEventListener( 'deviceorientation', onDeviceOrientationChangeEvent );
+
+		scope.enabled = false;
+
+	};
+
+	this.update = ( function () {
+
+		var lastQuaternion = new THREE.Quaternion();
+
+		return function () {
+
+			if ( scope.enabled === false ) return;
+
+			var device = scope.deviceOrientation;
+
+			if ( device ) {
+
+				var alpha = device.alpha ? THREE.MathUtils.degToRad( device.alpha ) + scope.alphaOffset : 0; // Z
+
+				var beta = device.beta ? THREE.MathUtils.degToRad( device.beta ) : 0; // X'
+
+				var gamma = device.gamma ? THREE.MathUtils.degToRad( device.gamma ) : 0; // Y''
+
+				var orient = scope.screenOrientation ? THREE.MathUtils.degToRad( scope.screenOrientation ) : 0; // O
+
+				setObjectQuaternion( scope.object.quaternion, alpha, beta, gamma, orient );
+
+				if ( 8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) {
+
+					lastQuaternion.copy( scope.object.quaternion );
+					scope.dispatchEvent( changeEvent );
+
+				}
+
+			}
+
+		};
+
+
+	} )();
+
+	this.dispose = function () {
+
+		scope.disconnect();
+
+	};
+
+	this.connect();
+
+};
+
+THREE.DeviceOrientationControls.prototype = Object.create( THREE.EventDispatcher.prototype );
+THREE.DeviceOrientationControls.prototype.constructor = THREE.DeviceOrientationControls;

node_modules/three/examples/js/controls/DragControls.js

@@ -0,0 +1,307 @@
+THREE.DragControls = function ( _objects, _camera, _domElement ) {
+
+	var _plane = new THREE.Plane();
+	var _raycaster = new THREE.Raycaster();
+
+	var _mouse = new THREE.Vector2();
+	var _offset = new THREE.Vector3();
+	var _intersection = new THREE.Vector3();
+	var _worldPosition = new THREE.Vector3();
+	var _inverseMatrix = new THREE.Matrix4();
+	var _intersections = [];
+
+	var _selected = null, _hovered = null;
+
+	//
+
+	var scope = this;
+
+	function activate() {
+
+		_domElement.addEventListener( 'pointermove', onPointerMove );
+		_domElement.addEventListener( 'pointerdown', onPointerDown );
+		_domElement.addEventListener( 'pointerup', onPointerCancel );
+		_domElement.addEventListener( 'pointerleave', onPointerCancel );
+		_domElement.addEventListener( 'touchmove', onTouchMove );
+		_domElement.addEventListener( 'touchstart', onTouchStart );
+		_domElement.addEventListener( 'touchend', onTouchEnd );
+
+	}
+
+	function deactivate() {
+
+		_domElement.removeEventListener( 'pointermove', onPointerMove );
+		_domElement.removeEventListener( 'pointerdown', onPointerDown );
+		_domElement.removeEventListener( 'pointerup', onPointerCancel );
+		_domElement.removeEventListener( 'pointerleave', onPointerCancel );
+		_domElement.removeEventListener( 'touchmove', onTouchMove );
+		_domElement.removeEventListener( 'touchstart', onTouchStart );
+		_domElement.removeEventListener( 'touchend', onTouchEnd );
+
+		_domElement.style.cursor = '';
+
+	}
+
+	function dispose() {
+
+		deactivate();
+
+	}
+
+	function getObjects() {
+
+		return _objects;
+
+	}
+
+	function onPointerMove( event ) {
+
+		event.preventDefault();
+
+		switch ( event.pointerType ) {
+
+			case 'mouse':
+			case 'pen':
+				onMouseMove( event );
+				break;
+
+			// TODO touch
+
+		}
+
+	}
+
+	function onMouseMove( event ) {
+
+		var rect = _domElement.getBoundingClientRect();
+
+		_mouse.x = ( ( event.clientX - rect.left ) / rect.width ) * 2 - 1;
+		_mouse.y = - ( ( event.clientY - rect.top ) / rect.height ) * 2 + 1;
+
+		_raycaster.setFromCamera( _mouse, _camera );
+
+		if ( _selected && scope.enabled ) {
+
+			if ( _raycaster.ray.intersectPlane( _plane, _intersection ) ) {
+
+				_selected.position.copy( _intersection.sub( _offset ).applyMatrix4( _inverseMatrix ) );
+
+			}
+
+			scope.dispatchEvent( { type: 'drag', object: _selected } );
+
+			return;
+
+		}
+
+		_intersections.length = 0;
+
+		_raycaster.setFromCamera( _mouse, _camera );
+		_raycaster.intersectObjects( _objects, true, _intersections );
+
+		if ( _intersections.length > 0 ) {
+
+			var object = _intersections[ 0 ].object;
+
+			_plane.setFromNormalAndCoplanarPoint( _camera.getWorldDirection( _plane.normal ), _worldPosition.setFromMatrixPosition( object.matrixWorld ) );
+
+			if ( _hovered !== object ) {
+
+				scope.dispatchEvent( { type: 'hoveron', object: object } );
+
+				_domElement.style.cursor = 'pointer';
+				_hovered = object;
+
+			}
+
+		} else {
+
+			if ( _hovered !== null ) {
+
+				scope.dispatchEvent( { type: 'hoveroff', object: _hovered } );
+
+				_domElement.style.cursor = 'auto';
+				_hovered = null;
+
+			}
+
+		}
+
+	}
+
+	function onPointerDown( event ) {
+
+		event.preventDefault();
+
+		switch ( event.pointerType ) {
+
+			case 'mouse':
+			case 'pen':
+				onMouseDown( event );
+				break;
+
+			// TODO touch
+
+		}
+
+	}
+
+	function onMouseDown( event ) {
+
+		event.preventDefault();
+
+		_intersections.length = 0;
+
+		_raycaster.setFromCamera( _mouse, _camera );
+		_raycaster.intersectObjects( _objects, true, _intersections );
+
+		if ( _intersections.length > 0 ) {
+
+			_selected = ( scope.transformGroup === true ) ? _objects[ 0 ] : _intersections[ 0 ].object;
+
+			if ( _raycaster.ray.intersectPlane( _plane, _intersection ) ) {
+
+				_inverseMatrix.copy( _selected.parent.matrixWorld ).invert();
+				_offset.copy( _intersection ).sub( _worldPosition.setFromMatrixPosition( _selected.matrixWorld ) );
+
+			}
+
+			_domElement.style.cursor = 'move';
+
+			scope.dispatchEvent( { type: 'dragstart', object: _selected } );
+
+		}
+
+
+	}
+
+	function onPointerCancel( event ) {
+
+		event.preventDefault();
+
+		switch ( event.pointerType ) {
+
+			case 'mouse':
+			case 'pen':
+				onMouseCancel( event );
+				break;
+
+			// TODO touch
+
+		}
+
+	}
+
+	function onMouseCancel( event ) {
+
+		event.preventDefault();
+
+		if ( _selected ) {
+
+			scope.dispatchEvent( { type: 'dragend', object: _selected } );
+
+			_selected = null;
+
+		}
+
+		_domElement.style.cursor = _hovered ? 'pointer' : 'auto';
+
+	}
+
+	function onTouchMove( event ) {
+
+		event.preventDefault();
+		event = event.changedTouches[ 0 ];
+
+		var rect = _domElement.getBoundingClientRect();
+
+		_mouse.x = ( ( event.clientX - rect.left ) / rect.width ) * 2 - 1;
+		_mouse.y = - ( ( event.clientY - rect.top ) / rect.height ) * 2 + 1;
+
+		_raycaster.setFromCamera( _mouse, _camera );
+
+		if ( _selected && scope.enabled ) {
+
+			if ( _raycaster.ray.intersectPlane( _plane, _intersection ) ) {
+
+				_selected.position.copy( _intersection.sub( _offset ).applyMatrix4( _inverseMatrix ) );
+
+			}
+
+			scope.dispatchEvent( { type: 'drag', object: _selected } );
+
+			return;
+
+		}
+
+	}
+
+	function onTouchStart( event ) {
+
+		event.preventDefault();
+		event = event.changedTouches[ 0 ];
+
+		var rect = _domElement.getBoundingClientRect();
+
+		_mouse.x = ( ( event.clientX - rect.left ) / rect.width ) * 2 - 1;
+		_mouse.y = - ( ( event.clientY - rect.top ) / rect.height ) * 2 + 1;
+
+		_intersections.length = 0;
+
+		_raycaster.setFromCamera( _mouse, _camera );
+		 _raycaster.intersectObjects( _objects, true, _intersections );
+
+		if ( _intersections.length > 0 ) {
+
+			_selected = ( scope.transformGroup === true ) ? _objects[ 0 ] : _intersections[ 0 ].object;
+
+			_plane.setFromNormalAndCoplanarPoint( _camera.getWorldDirection( _plane.normal ), _worldPosition.setFromMatrixPosition( _selected.matrixWorld ) );
+
+			if ( _raycaster.ray.intersectPlane( _plane, _intersection ) ) {
+
+				_inverseMatrix.copy( _selected.parent.matrixWorld ).invert();
+				_offset.copy( _intersection ).sub( _worldPosition.setFromMatrixPosition( _selected.matrixWorld ) );
+
+			}
+
+			_domElement.style.cursor = 'move';
+
+			scope.dispatchEvent( { type: 'dragstart', object: _selected } );
+
+		}
+
+
+	}
+
+	function onTouchEnd( event ) {
+
+		event.preventDefault();
+
+		if ( _selected ) {
+
+			scope.dispatchEvent( { type: 'dragend', object: _selected } );
+
+			_selected = null;
+
+		}
+
+		_domElement.style.cursor = 'auto';
+
+	}
+
+	activate();
+
+	// API
+
+	this.enabled = true;
+	this.transformGroup = false;
+
+	this.activate = activate;
+	this.deactivate = deactivate;
+	this.dispose = dispose;
+	this.getObjects = getObjects;
+
+};
+
+THREE.DragControls.prototype = Object.create( THREE.EventDispatcher.prototype );
+THREE.DragControls.prototype.constructor = THREE.DragControls;

node_modules/three/examples/js/controls/FirstPersonControls.js

@@ -0,0 +1,346 @@
+THREE.FirstPersonControls = function ( object, domElement ) {
+
+	if ( domElement === undefined ) {
+
+		console.warn( 'THREE.FirstPersonControls: The second parameter "domElement" is now mandatory.' );
+		domElement = document;
+
+	}
+
+	this.object = object;
+	this.domElement = domElement;
+
+	// API
+
+	this.enabled = true;
+
+	this.movementSpeed = 1.0;
+	this.lookSpeed = 0.005;
+
+	this.lookVertical = true;
+	this.autoForward = false;
+
+	this.activeLook = true;
+
+	this.heightSpeed = false;
+	this.heightCoef = 1.0;
+	this.heightMin = 0.0;
+	this.heightMax = 1.0;
+
+	this.constrainVertical = false;
+	this.verticalMin = 0;
+	this.verticalMax = Math.PI;
+
+	this.mouseDragOn = false;
+
+	// internals
+
+	this.autoSpeedFactor = 0.0;
+
+	this.mouseX = 0;
+	this.mouseY = 0;
+
+	this.moveForward = false;
+	this.moveBackward = false;
+	this.moveLeft = false;
+	this.moveRight = false;
+
+	this.viewHalfX = 0;
+	this.viewHalfY = 0;
+
+	// private variables
+
+	var lat = 0;
+	var lon = 0;
+
+	var lookDirection = new THREE.Vector3();
+	var spherical = new THREE.Spherical();
+	var target = new THREE.Vector3();
+
+	//
+
+	if ( this.domElement !== document ) {
+
+		this.domElement.setAttribute( 'tabindex', - 1 );
+
+	}
+
+	//
+
+	this.handleResize = function () {
+
+		if ( this.domElement === document ) {
+
+			this.viewHalfX = window.innerWidth / 2;
+			this.viewHalfY = window.innerHeight / 2;
+
+		} else {
+
+			this.viewHalfX = this.domElement.offsetWidth / 2;
+			this.viewHalfY = this.domElement.offsetHeight / 2;
+
+		}
+
+	};
+
+	this.onMouseDown = function ( event ) {
+
+		if ( this.domElement !== document ) {
+
+			this.domElement.focus();
+
+		}
+
+		event.preventDefault();
+		event.stopPropagation();
+
+		if ( this.activeLook ) {
+
+			switch ( event.button ) {
+
+				case 0: this.moveForward = true; break;
+				case 2: this.moveBackward = true; break;
+
+			}
+
+		}
+
+		this.mouseDragOn = true;
+
+	};
+
+	this.onMouseUp = function ( event ) {
+
+		event.preventDefault();
+		event.stopPropagation();
+
+		if ( this.activeLook ) {
+
+			switch ( event.button ) {
+
+				case 0: this.moveForward = false; break;
+				case 2: this.moveBackward = false; break;
+
+			}
+
+		}
+
+		this.mouseDragOn = false;
+
+	};
+
+	this.onMouseMove = function ( event ) {
+
+		if ( this.domElement === document ) {
+
+			this.mouseX = event.pageX - this.viewHalfX;
+			this.mouseY = event.pageY - this.viewHalfY;
+
+		} else {
+
+			this.mouseX = event.pageX - this.domElement.offsetLeft - this.viewHalfX;
+			this.mouseY = event.pageY - this.domElement.offsetTop - this.viewHalfY;
+
+		}
+
+	};
+
+	this.onKeyDown = function ( event ) {
+
+		//event.preventDefault();
+
+		switch ( event.code ) {
+
+			case 'ArrowUp':
+			case 'KeyW': this.moveForward = true; break;
+
+			case 'ArrowLeft':
+			case 'KeyA': this.moveLeft = true; break;
+
+			case 'ArrowDown':
+			case 'KeyS': this.moveBackward = true; break;
+
+			case 'ArrowRight':
+			case 'KeyD': this.moveRight = true; break;
+
+			case 'KeyR': this.moveUp = true; break;
+			case 'KeyF': this.moveDown = true; break;
+
+		}
+
+	};
+
+	this.onKeyUp = function ( event ) {
+
+		switch ( event.code ) {
+
+			case 'ArrowUp':
+			case 'KeyW': this.moveForward = false; break;
+
+			case 'ArrowLeft':
+			case 'KeyA': this.moveLeft = false; break;
+
+			case 'ArrowDown':
+			case 'KeyS': this.moveBackward = false; break;
+
+			case 'ArrowRight':
+			case 'KeyD': this.moveRight = false; break;
+
+			case 'KeyR': this.moveUp = false; break;
+			case 'KeyF': this.moveDown = false; break;
+
+		}
+
+	};
+
+	this.lookAt = function ( x, y, z ) {
+
+		if ( x.isVector3 ) {
+
+			target.copy( x );
+
+		} else {
+
+			target.set( x, y, z );
+
+		}
+
+		this.object.lookAt( target );
+
+		setOrientation( this );
+
+		return this;
+
+	};
+
+	this.update = function () {
+
+		var targetPosition = new THREE.Vector3();
+
+		return function update( delta ) {
+
+			if ( this.enabled === false ) return;
+
+			if ( this.heightSpeed ) {
+
+				var y = THREE.MathUtils.clamp( this.object.position.y, this.heightMin, this.heightMax );
+				var heightDelta = y - this.heightMin;
+
+				this.autoSpeedFactor = delta * ( heightDelta * this.heightCoef );
+
+			} else {
+
+				this.autoSpeedFactor = 0.0;
+
+			}
+
+			var actualMoveSpeed = delta * this.movementSpeed;
+
+			if ( this.moveForward || ( this.autoForward && ! this.moveBackward ) ) this.object.translateZ( - ( actualMoveSpeed + this.autoSpeedFactor ) );
+			if ( this.moveBackward ) this.object.translateZ( actualMoveSpeed );
+
+			if ( this.moveLeft ) this.object.translateX( - actualMoveSpeed );
+			if ( this.moveRight ) this.object.translateX( actualMoveSpeed );
+
+			if ( this.moveUp ) this.object.translateY( actualMoveSpeed );
+			if ( this.moveDown ) this.object.translateY( - actualMoveSpeed );
+
+			var actualLookSpeed = delta * this.lookSpeed;
+
+			if ( ! this.activeLook ) {
+
+				actualLookSpeed = 0;
+
+			}
+
+			var verticalLookRatio = 1;
+
+			if ( this.constrainVertical ) {
+
+				verticalLookRatio = Math.PI / ( this.verticalMax - this.verticalMin );
+
+			}
+
+			lon -= this.mouseX * actualLookSpeed;
+			if ( this.lookVertical ) lat -= this.mouseY * actualLookSpeed * verticalLookRatio;
+
+			lat = Math.max( - 85, Math.min( 85, lat ) );
+
+			var phi = THREE.MathUtils.degToRad( 90 - lat );
+			var theta = THREE.MathUtils.degToRad( lon );
+
+			if ( this.constrainVertical ) {
+
+				phi = THREE.MathUtils.mapLinear( phi, 0, Math.PI, this.verticalMin, this.verticalMax );
+
+			}
+
+			var position = this.object.position;
+
+			targetPosition.setFromSphericalCoords( 1, phi, theta ).add( position );
+
+			this.object.lookAt( targetPosition );
+
+		};
+
+	}();
+
+	function contextmenu( event ) {
+
+		event.preventDefault();
+
+	}
+
+	this.dispose = function () {
+
+		this.domElement.removeEventListener( 'contextmenu', contextmenu );
+		this.domElement.removeEventListener( 'mousedown', _onMouseDown );
+		this.domElement.removeEventListener( 'mousemove', _onMouseMove );
+		this.domElement.removeEventListener( 'mouseup', _onMouseUp );
+
+		window.removeEventListener( 'keydown', _onKeyDown );
+		window.removeEventListener( 'keyup', _onKeyUp );
+
+	};
+
+	var _onMouseMove = bind( this, this.onMouseMove );
+	var _onMouseDown = bind( this, this.onMouseDown );
+	var _onMouseUp = bind( this, this.onMouseUp );
+	var _onKeyDown = bind( this, this.onKeyDown );
+	var _onKeyUp = bind( this, this.onKeyUp );
+
+	this.domElement.addEventListener( 'contextmenu', contextmenu );
+	this.domElement.addEventListener( 'mousemove', _onMouseMove );
+	this.domElement.addEventListener( 'mousedown', _onMouseDown );
+	this.domElement.addEventListener( 'mouseup', _onMouseUp );
+
+	window.addEventListener( 'keydown', _onKeyDown );
+	window.addEventListener( 'keyup', _onKeyUp );
+
+	function bind( scope, fn ) {
+
+		return function () {
+
+			fn.apply( scope, arguments );
+
+		};
+
+	}
+
+	function setOrientation( controls ) {
+
+		var quaternion = controls.object.quaternion;
+
+		lookDirection.set( 0, 0, - 1 ).applyQuaternion( quaternion );
+		spherical.setFromVector3( lookDirection );
+
+		lat = 90 - THREE.MathUtils.radToDeg( spherical.phi );
+		lon = THREE.MathUtils.radToDeg( spherical.theta );
+
+	}
+
+	this.handleResize();
+
+	setOrientation( this );
+
+};

node_modules/three/examples/js/controls/FlyControls.js

@@ -0,0 +1,309 @@
+THREE.FlyControls = function ( object, domElement ) {
+
+	if ( domElement === undefined ) {
+
+		console.warn( 'THREE.FlyControls: The second parameter "domElement" is now mandatory.' );
+		domElement = document;
+
+	}
+
+	this.object = object;
+	this.domElement = domElement;
+
+	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
+
+	var scope = this;
+	var changeEvent = { type: 'change' };
+	var EPS = 0.000001;
+
+	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.keydown = function ( event ) {
+
+		if ( event.altKey ) {
+
+			return;
+
+		}
+
+		//event.preventDefault();
+
+		switch ( event.code ) {
+
+			case 'ShiftLeft':
+			case 'ShiftRight': this.movementSpeedMultiplier = .1; break;
+
+			case 'KeyW': this.moveState.forward = 1; break;
+			case 'KeyS': this.moveState.back = 1; break;
+
+			case 'KeyA': this.moveState.left = 1; break;
+			case 'KeyD': this.moveState.right = 1; break;
+
+			case 'KeyR': this.moveState.up = 1; break;
+			case 'KeyF': this.moveState.down = 1; break;
+
+			case 'ArrowUp': this.moveState.pitchUp = 1; break;
+			case 'ArrowDown': this.moveState.pitchDown = 1; break;
+
+			case 'ArrowLeft': this.moveState.yawLeft = 1; break;
+			case 'ArrowRight': this.moveState.yawRight = 1; break;
+
+			case 'KeyQ': this.moveState.rollLeft = 1; break;
+			case 'KeyE': this.moveState.rollRight = 1; break;
+
+		}
+
+		this.updateMovementVector();
+		this.updateRotationVector();
+
+	};
+
+	this.keyup = function ( event ) {
+
+		switch ( event.code ) {
+
+			case 'ShiftLeft':
+			case 'ShiftRight': this.movementSpeedMultiplier = 1; break;
+
+			case 'KeyW': this.moveState.forward = 0; break;
+			case 'KeyS': this.moveState.back = 0; break;
+
+			case 'KeyA': this.moveState.left = 0; break;
+			case 'KeyD': this.moveState.right = 0; break;
+
+			case 'KeyR': this.moveState.up = 0; break;
+			case 'KeyF': this.moveState.down = 0; break;
+
+			case 'ArrowUp': this.moveState.pitchUp = 0; break;
+			case 'ArrowDown': this.moveState.pitchDown = 0; break;
+
+			case 'ArrowLeft': this.moveState.yawLeft = 0; break;
+			case 'ArrowRight': this.moveState.yawRight = 0; break;
+
+			case 'KeyQ': this.moveState.rollLeft = 0; break;
+			case 'KeyE': 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 () {
+
+		var lastQuaternion = new THREE.Quaternion();
+		var lastPosition = new THREE.Vector3();
+
+		return function ( delta ) {
+
+			var moveMult = delta * scope.movementSpeed;
+			var rotMult = delta * scope.rollSpeed;
+
+			scope.object.translateX( scope.moveVector.x * moveMult );
+			scope.object.translateY( scope.moveVector.y * moveMult );
+			scope.object.translateZ( scope.moveVector.z * moveMult );
+
+			scope.tmpQuaternion.set( scope.rotationVector.x * rotMult, scope.rotationVector.y * rotMult, scope.rotationVector.z * rotMult, 1 ).normalize();
+			scope.object.quaternion.multiply( scope.tmpQuaternion );
+
+			if (
+				lastPosition.distanceToSquared( scope.object.position ) > EPS ||
+				8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS
+			) {
+
+				scope.dispatchEvent( changeEvent );
+				lastQuaternion.copy( scope.object.quaternion );
+				lastPosition.copy( scope.object.position );
+
+			}
+
+		};
+
+	}();
+
+	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 );
+
+		};
+
+	}
+
+	function contextmenu( event ) {
+
+		event.preventDefault();
+
+	}
+
+	this.dispose = function () {
+
+		this.domElement.removeEventListener( 'contextmenu', contextmenu );
+		this.domElement.removeEventListener( 'mousedown', _mousedown );
+		this.domElement.removeEventListener( 'mousemove', _mousemove );
+		this.domElement.removeEventListener( 'mouseup', _mouseup );
+
+		window.removeEventListener( 'keydown', _keydown );
+		window.removeEventListener( 'keyup', _keyup );
+
+	};
+
+	var _mousemove = bind( this, this.mousemove );
+	var _mousedown = bind( this, this.mousedown );
+	var _mouseup = bind( this, this.mouseup );
+	var _keydown = bind( this, this.keydown );
+	var _keyup = bind( this, this.keyup );
+
+	this.domElement.addEventListener( 'contextmenu', contextmenu );
+
+	this.domElement.addEventListener( 'mousemove', _mousemove );
+	this.domElement.addEventListener( 'mousedown', _mousedown );
+	this.domElement.addEventListener( 'mouseup', _mouseup );
+
+	window.addEventListener( 'keydown', _keydown );
+	window.addEventListener( 'keyup', _keyup );
+
+	this.updateMovementVector();
+	this.updateRotationVector();
+
+};
+
+THREE.FlyControls.prototype = Object.create( THREE.EventDispatcher.prototype );
+THREE.FlyControls.prototype.constructor = THREE.FlyControls;

node_modules/three/examples/js/controls/PointerLockControls.js

@@ -0,0 +1,156 @@
+THREE.PointerLockControls = function ( camera, domElement ) {
+
+	if ( domElement === undefined ) {
+
+		console.warn( 'THREE.PointerLockControls: The second parameter "domElement" is now mandatory.' );
+		domElement = document.body;
+
+	}
+
+	this.domElement = domElement;
+	this.isLocked = false;
+
+	// Set to constrain the pitch of the camera
+	// Range is 0 to Math.PI radians
+	this.minPolarAngle = 0; // radians
+	this.maxPolarAngle = Math.PI; // radians
+
+	//
+	// internals
+	//
+
+	var scope = this;
+
+	var changeEvent = { type: 'change' };
+	var lockEvent = { type: 'lock' };
+	var unlockEvent = { type: 'unlock' };
+
+	var euler = new THREE.Euler( 0, 0, 0, 'YXZ' );
+
+	var PI_2 = Math.PI / 2;
+
+	var vec = new THREE.Vector3();
+
+	function onMouseMove( event ) {
+
+		if ( scope.isLocked === false ) return;
+
+		var movementX = event.movementX || event.mozMovementX || event.webkitMovementX || 0;
+		var movementY = event.movementY || event.mozMovementY || event.webkitMovementY || 0;
+
+		euler.setFromQuaternion( camera.quaternion );
+
+		euler.y -= movementX * 0.002;
+		euler.x -= movementY * 0.002;
+
+		euler.x = Math.max( PI_2 - scope.maxPolarAngle, Math.min( PI_2 - scope.minPolarAngle, euler.x ) );
+
+		camera.quaternion.setFromEuler( euler );
+
+		scope.dispatchEvent( changeEvent );
+
+	}
+
+	function onPointerlockChange() {
+
+		if ( scope.domElement.ownerDocument.pointerLockElement === scope.domElement ) {
+
+			scope.dispatchEvent( lockEvent );
+
+			scope.isLocked = true;
+
+		} else {
+
+			scope.dispatchEvent( unlockEvent );
+
+			scope.isLocked = false;
+
+		}
+
+	}
+
+	function onPointerlockError() {
+
+		console.error( 'THREE.PointerLockControls: Unable to use Pointer Lock API' );
+
+	}
+
+	this.connect = function () {
+
+		scope.domElement.ownerDocument.addEventListener( 'mousemove', onMouseMove );
+		scope.domElement.ownerDocument.addEventListener( 'pointerlockchange', onPointerlockChange );
+		scope.domElement.ownerDocument.addEventListener( 'pointerlockerror', onPointerlockError );
+
+	};
+
+	this.disconnect = function () {
+
+		scope.domElement.ownerDocument.removeEventListener( 'mousemove', onMouseMove );
+		scope.domElement.ownerDocument.removeEventListener( 'pointerlockchange', onPointerlockChange );
+		scope.domElement.ownerDocument.removeEventListener( 'pointerlockerror', onPointerlockError );
+
+	};
+
+	this.dispose = function () {
+
+		this.disconnect();
+
+	};
+
+	this.getObject = function () { // retaining this method for backward compatibility
+
+		return camera;
+
+	};
+
+	this.getDirection = function () {
+
+		var direction = new THREE.Vector3( 0, 0, - 1 );
+
+		return function ( v ) {
+
+			return v.copy( direction ).applyQuaternion( camera.quaternion );
+
+		};
+
+	}();
+
+	this.moveForward = function ( distance ) {
+
+		// move forward parallel to the xz-plane
+		// assumes camera.up is y-up
+
+		vec.setFromMatrixColumn( camera.matrix, 0 );
+
+		vec.crossVectors( camera.up, vec );
+
+		camera.position.addScaledVector( vec, distance );
+
+	};
+
+	this.moveRight = function ( distance ) {
+
+		vec.setFromMatrixColumn( camera.matrix, 0 );
+
+		camera.position.addScaledVector( vec, distance );
+
+	};
+
+	this.lock = function () {
+
+		this.domElement.requestPointerLock();
+
+	};
+
+	this.unlock = function () {
+
+		scope.domElement.ownerDocument.exitPointerLock();
+
+	};
+
+	this.connect();
+
+};
+
+THREE.PointerLockControls.prototype = Object.create( THREE.EventDispatcher.prototype );
+THREE.PointerLockControls.prototype.constructor = THREE.PointerLockControls;

node_modules/three/examples/js/controls/TrackballControls.js

@@ -0,0 +1,744 @@
+THREE.TrackballControls = function ( object, domElement ) {
+
+	if ( domElement === undefined ) console.warn( 'THREE.TrackballControls: The second parameter "domElement" is now mandatory.' );
+	if ( domElement === document ) console.error( 'THREE.TrackballControls: "document" should not be used as the target "domElement". Please use "renderer.domElement" instead.' );
+
+	var scope = this;
+	var STATE = { NONE: - 1, ROTATE: 0, ZOOM: 1, PAN: 2, TOUCH_ROTATE: 3, TOUCH_ZOOM_PAN: 4 };
+
+	this.object = object;
+	this.domElement = domElement;
+
+	// API
+
+	this.enabled = true;
+
+	this.screen = { left: 0, top: 0, width: 0, height: 0 };
+
+	this.rotateSpeed = 1.0;
+	this.zoomSpeed = 1.2;
+	this.panSpeed = 0.3;
+
+	this.noRotate = false;
+	this.noZoom = false;
+	this.noPan = false;
+
+	this.staticMoving = false;
+	this.dynamicDampingFactor = 0.2;
+
+	this.minDistance = 0;
+	this.maxDistance = Infinity;
+
+	this.keys = [ 65 /*A*/, 83 /*S*/, 68 /*D*/ ];
+
+	this.mouseButtons = { LEFT: THREE.MOUSE.ROTATE, MIDDLE: THREE.MOUSE.DOLLY, RIGHT: THREE.MOUSE.PAN };
+
+	// internals
+
+	this.target = new THREE.Vector3();
+
+	var EPS = 0.000001;
+
+	var lastPosition = new THREE.Vector3();
+	var lastZoom = 1;
+
+	var _state = STATE.NONE,
+		_keyState = STATE.NONE,
+
+		_eye = new THREE.Vector3(),
+
+		_movePrev = new THREE.Vector2(),
+		_moveCurr = new THREE.Vector2(),
+
+		_lastAxis = new THREE.Vector3(),
+		_lastAngle = 0,
+
+		_zoomStart = new THREE.Vector2(),
+		_zoomEnd = new THREE.Vector2(),
+
+		_touchZoomDistanceStart = 0,
+		_touchZoomDistanceEnd = 0,
+
+		_panStart = new THREE.Vector2(),
+		_panEnd = new THREE.Vector2();
+
+	// for reset
+
+	this.target0 = this.target.clone();
+	this.position0 = this.object.position.clone();
+	this.up0 = this.object.up.clone();
+	this.zoom0 = this.object.zoom;
+
+	// events
+
+	var changeEvent = { type: 'change' };
+	var startEvent = { type: 'start' };
+	var endEvent = { type: 'end' };
+
+
+	// methods
+
+	this.handleResize = function () {
+
+		var box = scope.domElement.getBoundingClientRect();
+		// adjustments come from similar code in the jquery offset() function
+		var d = scope.domElement.ownerDocument.documentElement;
+		scope.screen.left = box.left + window.pageXOffset - d.clientLeft;
+		scope.screen.top = box.top + window.pageYOffset - d.clientTop;
+		scope.screen.width = box.width;
+		scope.screen.height = box.height;
+
+	};
+
+	var getMouseOnScreen = ( function () {
+
+		var vector = new THREE.Vector2();
+
+		return function getMouseOnScreen( pageX, pageY ) {
+
+			vector.set(
+				( pageX - scope.screen.left ) / scope.screen.width,
+				( pageY - scope.screen.top ) / scope.screen.height
+			);
+
+			return vector;
+
+		};
+
+	}() );
+
+	var getMouseOnCircle = ( function () {
+
+		var vector = new THREE.Vector2();
+
+		return function getMouseOnCircle( pageX, pageY ) {
+
+			vector.set(
+				( ( pageX - scope.screen.width * 0.5 - scope.screen.left ) / ( scope.screen.width * 0.5 ) ),
+				( ( scope.screen.height + 2 * ( scope.screen.top - pageY ) ) / scope.screen.width ) // screen.width intentional
+			);
+
+			return vector;
+
+		};
+
+	}() );
+
+	this.rotateCamera = ( function () {
+
+		var axis = new THREE.Vector3(),
+			quaternion = new THREE.Quaternion(),
+			eyeDirection = new THREE.Vector3(),
+			objectUpDirection = new THREE.Vector3(),
+			objectSidewaysDirection = new THREE.Vector3(),
+			moveDirection = new THREE.Vector3(),
+			angle;
+
+		return function rotateCamera() {
+
+			moveDirection.set( _moveCurr.x - _movePrev.x, _moveCurr.y - _movePrev.y, 0 );
+			angle = moveDirection.length();
+
+			if ( angle ) {
+
+				_eye.copy( scope.object.position ).sub( scope.target );
+
+				eyeDirection.copy( _eye ).normalize();
+				objectUpDirection.copy( scope.object.up ).normalize();
+				objectSidewaysDirection.crossVectors( objectUpDirection, eyeDirection ).normalize();
+
+				objectUpDirection.setLength( _moveCurr.y - _movePrev.y );
+				objectSidewaysDirection.setLength( _moveCurr.x - _movePrev.x );
+
+				moveDirection.copy( objectUpDirection.add( objectSidewaysDirection ) );
+
+				axis.crossVectors( moveDirection, _eye ).normalize();
+
+				angle *= scope.rotateSpeed;
+				quaternion.setFromAxisAngle( axis, angle );
+
+				_eye.applyQuaternion( quaternion );
+				scope.object.up.applyQuaternion( quaternion );
+
+				_lastAxis.copy( axis );
+				_lastAngle = angle;
+
+			} else if ( ! scope.staticMoving && _lastAngle ) {
+
+				_lastAngle *= Math.sqrt( 1.0 - scope.dynamicDampingFactor );
+				_eye.copy( scope.object.position ).sub( scope.target );
+				quaternion.setFromAxisAngle( _lastAxis, _lastAngle );
+				_eye.applyQuaternion( quaternion );
+				scope.object.up.applyQuaternion( quaternion );
+
+			}
+
+			_movePrev.copy( _moveCurr );
+
+		};
+
+	}() );
+
+
+	this.zoomCamera = function () {
+
+		var factor;
+
+		if ( _state === STATE.TOUCH_ZOOM_PAN ) {
+
+			factor = _touchZoomDistanceStart / _touchZoomDistanceEnd;
+			_touchZoomDistanceStart = _touchZoomDistanceEnd;
+
+			if ( scope.object.isPerspectiveCamera ) {
+
+				_eye.multiplyScalar( factor );
+
+			} else if ( scope.object.isOrthographicCamera ) {
+
+				scope.object.zoom *= factor;
+				scope.object.updateProjectionMatrix();
+
+			} else {
+
+				console.warn( 'THREE.TrackballControls: Unsupported camera type' );
+
+			}
+
+		} else {
+
+			factor = 1.0 + ( _zoomEnd.y - _zoomStart.y ) * scope.zoomSpeed;
+
+			if ( factor !== 1.0 && factor > 0.0 ) {
+
+				if ( scope.object.isPerspectiveCamera ) {
+
+					_eye.multiplyScalar( factor );
+
+				} else if ( scope.object.isOrthographicCamera ) {
+
+					scope.object.zoom /= factor;
+					scope.object.updateProjectionMatrix();
+
+				} else {
+
+					console.warn( 'THREE.TrackballControls: Unsupported camera type' );
+
+				}
+
+			}
+
+			if ( scope.staticMoving ) {
+
+				_zoomStart.copy( _zoomEnd );
+
+			} else {
+
+				_zoomStart.y += ( _zoomEnd.y - _zoomStart.y ) * this.dynamicDampingFactor;
+
+			}
+
+		}
+
+	};
+
+	this.panCamera = ( function () {
+
+		var mouseChange = new THREE.Vector2(),
+			objectUp = new THREE.Vector3(),
+			pan = new THREE.Vector3();
+
+		return function panCamera() {
+
+			mouseChange.copy( _panEnd ).sub( _panStart );
+
+			if ( mouseChange.lengthSq() ) {
+
+				if ( scope.object.isOrthographicCamera ) {
+
+					var scale_x = ( scope.object.right - scope.object.left ) / scope.object.zoom / scope.domElement.clientWidth;
+					var scale_y = ( scope.object.top - scope.object.bottom ) / scope.object.zoom / scope.domElement.clientWidth;
+
+					mouseChange.x *= scale_x;
+					mouseChange.y *= scale_y;
+
+				}
+
+				mouseChange.multiplyScalar( _eye.length() * scope.panSpeed );
+
+				pan.copy( _eye ).cross( scope.object.up ).setLength( mouseChange.x );
+				pan.add( objectUp.copy( scope.object.up ).setLength( mouseChange.y ) );
+
+				scope.object.position.add( pan );
+				scope.target.add( pan );
+
+				if ( scope.staticMoving ) {
+
+					_panStart.copy( _panEnd );
+
+				} else {
+
+					_panStart.add( mouseChange.subVectors( _panEnd, _panStart ).multiplyScalar( scope.dynamicDampingFactor ) );
+
+				}
+
+			}
+
+		};
+
+	}() );
+
+	this.checkDistances = function () {
+
+		if ( ! scope.noZoom || ! scope.noPan ) {
+
+			if ( _eye.lengthSq() > scope.maxDistance * scope.maxDistance ) {
+
+				scope.object.position.addVectors( scope.target, _eye.setLength( scope.maxDistance ) );
+				_zoomStart.copy( _zoomEnd );
+
+			}
+
+			if ( _eye.lengthSq() < scope.minDistance * scope.minDistance ) {
+
+				scope.object.position.addVectors( scope.target, _eye.setLength( scope.minDistance ) );
+				_zoomStart.copy( _zoomEnd );
+
+			}
+
+		}
+
+	};
+
+	this.update = function () {
+
+		_eye.subVectors( scope.object.position, scope.target );
+
+		if ( ! scope.noRotate ) {
+
+			scope.rotateCamera();
+
+		}
+
+		if ( ! scope.noZoom ) {
+
+			scope.zoomCamera();
+
+		}
+
+		if ( ! scope.noPan ) {
+
+			scope.panCamera();
+
+		}
+
+		scope.object.position.addVectors( scope.target, _eye );
+
+		if ( scope.object.isPerspectiveCamera ) {
+
+			scope.checkDistances();
+
+			scope.object.lookAt( scope.target );
+
+			if ( lastPosition.distanceToSquared( scope.object.position ) > EPS ) {
+
+				scope.dispatchEvent( changeEvent );
+
+				lastPosition.copy( scope.object.position );
+
+			}
+
+		} else if ( scope.object.isOrthographicCamera ) {
+
+			scope.object.lookAt( scope.target );
+
+			if ( lastPosition.distanceToSquared( scope.object.position ) > EPS || lastZoom !== scope.object.zoom ) {
+
+				scope.dispatchEvent( changeEvent );
+
+				lastPosition.copy( scope.object.position );
+				lastZoom = scope.object.zoom;
+
+			}
+
+		} else {
+
+			console.warn( 'THREE.TrackballControls: Unsupported camera type' );
+
+		}
+
+	};
+
+	this.reset = function () {
+
+		_state = STATE.NONE;
+		_keyState = STATE.NONE;
+
+		scope.target.copy( scope.target0 );
+		scope.object.position.copy( scope.position0 );
+		scope.object.up.copy( scope.up0 );
+		scope.object.zoom = scope.zoom0;
+
+		scope.object.updateProjectionMatrix();
+
+		_eye.subVectors( scope.object.position, scope.target );
+
+		scope.object.lookAt( scope.target );
+
+		scope.dispatchEvent( changeEvent );
+
+		lastPosition.copy( scope.object.position );
+		lastZoom = scope.object.zoom;
+
+	};
+
+	// listeners
+
+	function onPointerDown( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		switch ( event.pointerType ) {
+
+			case 'mouse':
+			case 'pen':
+				onMouseDown( event );
+				break;
+
+			// TODO touch
+
+		}
+
+	}
+
+	function onPointerMove( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		switch ( event.pointerType ) {
+
+			case 'mouse':
+			case 'pen':
+				onMouseMove( event );
+				break;
+
+			// TODO touch
+
+		}
+
+	}
+
+	function onPointerUp( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		switch ( event.pointerType ) {
+
+			case 'mouse':
+			case 'pen':
+				onMouseUp( event );
+				break;
+
+			// TODO touch
+
+		}
+
+	}
+
+	function keydown( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		window.removeEventListener( 'keydown', keydown );
+
+		if ( _keyState !== STATE.NONE ) {
+
+			return;
+
+		} else if ( event.keyCode === scope.keys[ STATE.ROTATE ] && ! scope.noRotate ) {
+
+			_keyState = STATE.ROTATE;
+
+		} else if ( event.keyCode === scope.keys[ STATE.ZOOM ] && ! scope.noZoom ) {
+
+			_keyState = STATE.ZOOM;
+
+		} else if ( event.keyCode === scope.keys[ STATE.PAN ] && ! scope.noPan ) {
+
+			_keyState = STATE.PAN;
+
+		}
+
+	}
+
+	function keyup() {
+
+		if ( scope.enabled === false ) return;
+
+		_keyState = STATE.NONE;
+
+		window.addEventListener( 'keydown', keydown );
+
+	}
+
+	function onMouseDown( event ) {
+
+		event.preventDefault();
+		event.stopPropagation();
+
+		if ( _state === STATE.NONE ) {
+
+			switch ( event.button ) {
+
+				case scope.mouseButtons.LEFT:
+					_state = STATE.ROTATE;
+					break;
+
+				case scope.mouseButtons.MIDDLE:
+					_state = STATE.ZOOM;
+					break;
+
+				case scope.mouseButtons.RIGHT:
+					_state = STATE.PAN;
+					break;
+
+				default:
+					_state = STATE.NONE;
+
+			}
+
+		}
+
+		var state = ( _keyState !== STATE.NONE ) ? _keyState : _state;
+
+		if ( state === STATE.ROTATE && ! scope.noRotate ) {
+
+			_moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );
+			_movePrev.copy( _moveCurr );
+
+		} else if ( state === STATE.ZOOM && ! scope.noZoom ) {
+
+			_zoomStart.copy( getMouseOnScreen( event.pageX, event.pageY ) );
+			_zoomEnd.copy( _zoomStart );
+
+		} else if ( state === STATE.PAN && ! scope.noPan ) {
+
+			_panStart.copy( getMouseOnScreen( event.pageX, event.pageY ) );
+			_panEnd.copy( _panStart );
+
+		}
+
+		scope.domElement.ownerDocument.addEventListener( 'pointermove', onPointerMove );
+		scope.domElement.ownerDocument.addEventListener( 'pointerup', onPointerUp );
+
+		scope.dispatchEvent( startEvent );
+
+	}
+
+	function onMouseMove( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		event.preventDefault();
+		event.stopPropagation();
+
+		var state = ( _keyState !== STATE.NONE ) ? _keyState : _state;
+
+		if ( state === STATE.ROTATE && ! scope.noRotate ) {
+
+			_movePrev.copy( _moveCurr );
+			_moveCurr.copy( getMouseOnCircle( event.pageX, event.pageY ) );
+
+		} else if ( state === STATE.ZOOM && ! scope.noZoom ) {
+
+			_zoomEnd.copy( getMouseOnScreen( event.pageX, event.pageY ) );
+
+		} else if ( state === STATE.PAN && ! scope.noPan ) {
+
+			_panEnd.copy( getMouseOnScreen( event.pageX, event.pageY ) );
+
+		}
+
+	}
+
+	function onMouseUp( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		event.preventDefault();
+		event.stopPropagation();
+
+		_state = STATE.NONE;
+
+		scope.domElement.ownerDocument.removeEventListener( 'pointermove', onPointerMove );
+		scope.domElement.ownerDocument.removeEventListener( 'pointerup', onPointerUp );
+
+		scope.dispatchEvent( endEvent );
+
+	}
+
+	function mousewheel( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		if ( scope.noZoom === true ) return;
+
+		event.preventDefault();
+		event.stopPropagation();
+
+		switch ( event.deltaMode ) {
+
+			case 2:
+				// Zoom in pages
+				_zoomStart.y -= event.deltaY * 0.025;
+				break;
+
+			case 1:
+				// Zoom in lines
+				_zoomStart.y -= event.deltaY * 0.01;
+				break;
+
+			default:
+				// undefined, 0, assume pixels
+				_zoomStart.y -= event.deltaY * 0.00025;
+				break;
+
+		}
+
+		scope.dispatchEvent( startEvent );
+		scope.dispatchEvent( endEvent );
+
+	}
+
+	function touchstart( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		event.preventDefault();
+
+		switch ( event.touches.length ) {
+
+			case 1:
+				_state = STATE.TOUCH_ROTATE;
+				_moveCurr.copy( getMouseOnCircle( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ) );
+				_movePrev.copy( _moveCurr );
+				break;
+
+			default: // 2 or more
+				_state = STATE.TOUCH_ZOOM_PAN;
+				var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
+				var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
+				_touchZoomDistanceEnd = _touchZoomDistanceStart = Math.sqrt( dx * dx + dy * dy );
+
+				var x = ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ) / 2;
+				var y = ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ) / 2;
+				_panStart.copy( getMouseOnScreen( x, y ) );
+				_panEnd.copy( _panStart );
+				break;
+
+		}
+
+		scope.dispatchEvent( startEvent );
+
+	}
+
+	function touchmove( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		event.preventDefault();
+		event.stopPropagation();
+
+		switch ( event.touches.length ) {
+
+			case 1:
+				_movePrev.copy( _moveCurr );
+				_moveCurr.copy( getMouseOnCircle( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ) );
+				break;
+
+			default: // 2 or more
+				var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;
+				var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;
+				_touchZoomDistanceEnd = Math.sqrt( dx * dx + dy * dy );
+
+				var x = ( event.touches[ 0 ].pageX + event.touches[ 1 ].pageX ) / 2;
+				var y = ( event.touches[ 0 ].pageY + event.touches[ 1 ].pageY ) / 2;
+				_panEnd.copy( getMouseOnScreen( x, y ) );
+				break;
+
+		}
+
+	}
+
+	function touchend( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		switch ( event.touches.length ) {
+
+			case 0:
+				_state = STATE.NONE;
+				break;
+
+			case 1:
+				_state = STATE.TOUCH_ROTATE;
+				_moveCurr.copy( getMouseOnCircle( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ) );
+				_movePrev.copy( _moveCurr );
+				break;
+
+		}
+
+		scope.dispatchEvent( endEvent );
+
+	}
+
+	function contextmenu( event ) {
+
+		if ( scope.enabled === false ) return;
+
+		event.preventDefault();
+
+	}
+
+	this.dispose = function () {
+
+		scope.domElement.removeEventListener( 'contextmenu', contextmenu );
+
+		scope.domElement.removeEventListener( 'pointerdown', onPointerDown );
+		scope.domElement.removeEventListener( 'wheel', mousewheel );
+
+		scope.domElement.removeEventListener( 'touchstart', touchstart );
+		scope.domElement.removeEventListener( 'touchend', touchend );
+		scope.domElement.removeEventListener( 'touchmove', touchmove );
+
+		scope.domElement.ownerDocument.removeEventListener( 'pointermove', onPointerMove );
+		scope.domElement.ownerDocument.removeEventListener( 'pointerup', onPointerUp );
+
+		window.removeEventListener( 'keydown', keydown );
+		window.removeEventListener( 'keyup', keyup );
+
+	};
+
+	this.domElement.addEventListener( 'contextmenu', contextmenu );
+
+	this.domElement.addEventListener( 'pointerdown', onPointerDown );
+	this.domElement.addEventListener( 'wheel', mousewheel );
+
+	this.domElement.addEventListener( 'touchstart', touchstart );
+	this.domElement.addEventListener( 'touchend', touchend );
+	this.domElement.addEventListener( 'touchmove', touchmove );
+
+	this.domElement.ownerDocument.addEventListener( 'pointermove', onPointerMove );
+	this.domElement.ownerDocument.addEventListener( 'pointerup', onPointerUp );
+
+	window.addEventListener( 'keydown', keydown );
+	window.addEventListener( 'keyup', keyup );
+
+	this.handleResize();
+
+	// force an update at start
+	this.update();
+
+};
+
+THREE.TrackballControls.prototype = Object.create( THREE.EventDispatcher.prototype );
+THREE.TrackballControls.prototype.constructor = THREE.TrackballControls;