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144 lines
3.4 KiB
144 lines
3.4 KiB
( function () {
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const _euler = new THREE.Euler( 0, 0, 0, 'YXZ' );
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const _vector = new THREE.Vector3();
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const _changeEvent = {
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type: 'change'
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};
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const _lockEvent = {
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type: 'lock'
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};
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const _unlockEvent = {
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type: 'unlock'
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};
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const _PI_2 = Math.PI / 2;
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class PointerLockControls extends THREE.EventDispatcher {
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constructor( camera, domElement ) {
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super();
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this.domElement = domElement;
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this.isLocked = false;
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// Set to constrain the pitch of the camera
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// Range is 0 to Math.PI radians
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this.minPolarAngle = 0; // radians
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this.maxPolarAngle = Math.PI; // radians
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this.pointerSpeed = 1.0;
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const scope = this;
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function onMouseMove( event ) {
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if ( scope.isLocked === false ) return;
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const movementX = event.movementX || event.mozMovementX || event.webkitMovementX || 0;
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const movementY = event.movementY || event.mozMovementY || event.webkitMovementY || 0;
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_euler.setFromQuaternion( camera.quaternion );
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_euler.y -= movementX * 0.002 * scope.pointerSpeed;
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_euler.x -= movementY * 0.002 * scope.pointerSpeed;
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_euler.x = Math.max( _PI_2 - scope.maxPolarAngle, Math.min( _PI_2 - scope.minPolarAngle, _euler.x ) );
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camera.quaternion.setFromEuler( _euler );
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scope.dispatchEvent( _changeEvent );
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}
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function onPointerlockChange() {
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if ( scope.domElement.ownerDocument.pointerLockElement === scope.domElement ) {
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scope.dispatchEvent( _lockEvent );
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scope.isLocked = true;
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} else {
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scope.dispatchEvent( _unlockEvent );
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scope.isLocked = false;
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}
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}
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function onPointerlockError() {
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console.error( 'THREE.PointerLockControls: Unable to use Pointer Lock API' );
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}
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this.connect = function () {
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scope.domElement.ownerDocument.addEventListener( 'mousemove', onMouseMove );
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scope.domElement.ownerDocument.addEventListener( 'pointerlockchange', onPointerlockChange );
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scope.domElement.ownerDocument.addEventListener( 'pointerlockerror', onPointerlockError );
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};
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this.disconnect = function () {
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scope.domElement.ownerDocument.removeEventListener( 'mousemove', onMouseMove );
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scope.domElement.ownerDocument.removeEventListener( 'pointerlockchange', onPointerlockChange );
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scope.domElement.ownerDocument.removeEventListener( 'pointerlockerror', onPointerlockError );
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};
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this.dispose = function () {
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this.disconnect();
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};
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this.getObject = function () {
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// retaining this method for backward compatibility
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return camera;
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};
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this.getDirection = function () {
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const direction = new THREE.Vector3( 0, 0, - 1 );
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return function ( v ) {
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return v.copy( direction ).applyQuaternion( camera.quaternion );
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};
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}();
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this.moveForward = function ( distance ) {
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// move forward parallel to the xz-plane
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// assumes camera.up is y-up
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_vector.setFromMatrixColumn( camera.matrix, 0 );
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_vector.crossVectors( camera.up, _vector );
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camera.position.addScaledVector( _vector, distance );
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};
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this.moveRight = function ( distance ) {
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_vector.setFromMatrixColumn( camera.matrix, 0 );
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camera.position.addScaledVector( _vector, distance );
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};
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this.lock = function () {
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this.domElement.requestPointerLock();
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};
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this.unlock = function () {
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scope.domElement.ownerDocument.exitPointerLock();
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};
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this.connect();
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}
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}
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THREE.PointerLockControls = PointerLockControls;
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} )();
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