threejs-minecraft-35

/**
 * @author mrdoob / http://mrdoob.com/
 * @author Mugen87 / https://github.com/Mugen87
 */

THREE.PointerLockControls = function ( camera, domElement ) {

    var scope = this;

    this.domElement = domElement || document.body;
    this.isLocked = false;

    camera.rotation.set( 0, 0, 0 );

    var pitchObject = new THREE.Object3D();
    pitchObject.add( camera );

    var yawObject = new THREE.Object3D();
    yawObject.position.y = 10;
    yawObject.add( pitchObject );

    var PI_2 = Math.PI / 2;

    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;

        yawObject.rotation.y -= movementX * 0.002;
        pitchObject.rotation.x -= movementY * 0.002;

        pitchObject.rotation.x = Math.max( - PI_2, Math.min( PI_2, pitchObject.rotation.x ) );

    }

    function onPointerlockChange() {

        if ( document.pointerLockElement === scope.domElement ) {

            scope.dispatchEvent( { type: 'lock' } );

            scope.isLocked = true;

        } else {

            scope.dispatchEvent( { type: 'unlock' } );

            scope.isLocked = false;

        }

    }

    function onPointerlockError() {

        console.error( 'THREE.PointerLockControls: Unable to use Pointer Lock API' );

    }

    this.connect = function () {

        document.addEventListener( 'mousemove', onMouseMove, false );
        document.addEventListener( 'pointerlockchange', onPointerlockChange, false );
        document.addEventListener( 'pointerlockerror', onPointerlockError, false );

    };

    this.disconnect = function () {

        document.removeEventListener( 'mousemove', onMouseMove, false );
        document.removeEventListener( 'pointerlockchange', onPointerlockChange, false );
        document.removeEventListener( 'pointerlockerror', onPointerlockError, false );

    };

    this.dispose = function () {

        this.disconnect();

    };

    this.getObject = function () {

        return yawObject;

    };

    this.getDirection = function () {

        // assumes the camera itself is not rotated

        var direction = new THREE.Vector3( 0, 0, - 1 );
        var rotation = new THREE.Euler( 0, 0, 0, 'YXZ' );

        return function ( v ) {

            rotation.set( pitchObject.rotation.x, yawObject.rotation.y, 0 );

            v.copy( direction ).applyEuler( rotation );

            return v;

        };

    }();

    this.lock = function () {

        this.domElement.requestPointerLock();

    };

    this.unlock = function () {

        document.exitPointerLock();

    };

    this.connect();

};

THREE.PointerLockControls.prototype = Object.create( THREE.EventDispatcher.prototype );
THREE.PointerLockControls.prototype.constructor = THREE.PointerLockControls;