( function () {
const _euler = new THREE.Euler( 0, 0, 0, 'YXZ' );
const _vector = new THREE.Vector3();
const _changeEvent = {
type: 'change'
};
const _lockEvent = {
type: 'lock'
};
const _unlockEvent = {
type: 'unlock'
};
const _PI_2 = Math.PI / 2;
class PointerLockControls extends THREE.EventDispatcher {
constructor( camera, domElement ) {
super();
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
const scope = this;
function onMouseMove( event ) {
if ( scope.isLocked === false ) return;
const movementX = event.movementX || event.mozMovementX || event.webkitMovementX || 0;
const 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 () {
const 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
_vector.setFromMatrixColumn( camera.matrix, 0 );
_vector.crossVectors( camera.up, _vector );
camera.position.addScaledVector( _vector, distance );
};
this.moveRight = function ( distance ) {
_vector.setFromMatrixColumn( camera.matrix, 0 );
camera.position.addScaledVector( _vector, distance );
};
this.lock = function () {
this.domElement.requestPointerLock();
};
this.unlock = function () {
scope.domElement.ownerDocument.exitPointerLock();
};
this.connect();
}
}
THREE.PointerLockControls = PointerLockControls;
} )();
