var PointerLockControls = function ( camera, player ) {
    var scope = this;
    var velocity = new THREE.Vector3();

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

    var yawObject = new THREE.Object3D();
    yawObject.position.y = 10;
        yawObject.position.z = 85;
    yawObject.add( pitchObject );
    player.add(yawObject);

    var moveForward = false;
    var moveBackward = false;
    var moveLeft = false;
    var moveRight = false;

    var canJump = false;

    var PI_2 = Math.PI / 2;

    var onMouseMove = function ( event ) {
        if ( scope.enabled === 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 ) );
    };

    var onKeyDown = function ( e ) {
        switch ( e.keyCode ) {
            case 38: // up
            case 87: // w
                moveForward = true;
                break;
            case 37: // left
            case 65: // a
                moveLeft = true;
                                break;
            case 40: // down
            case 83: // s
                moveBackward = true;
                break;
            case 39: // right
            case 68: // d
                moveRight = true;
                break;
            case 32: // space
                if (canJump) velocity.y += 100;
                canJump = false;
                break;
        }
    };
    var onKeyUp = function ( e ) {
        switch( e.keyCode ) {
            case 38: // up
            case 87: // w
                moveForward = false;
                break;
            case 37: // left
            case 65: // a
                moveLeft = false;
                break;
            case 40: // down
            case 83: // a
                moveBackward = false;
                break;
            case 39: // right
            case 68: // d
                moveRight = false;
                break;
        }
    };

    document.addEventListener( 'mousemove', onMouseMove, false );
    document.addEventListener( 'keydown', onKeyDown, false );
    document.addEventListener( 'keyup', onKeyUp, false );

    this.enabled = false;

    this.getObject = function () { return yawObject; };

    this.getDirection = function (targetVec) {
        targetVec.set(0,0,-1);
        quat.multiplyVector3(targetVec);
    }

    this.update = function (delta) {
            if ( !scope.enabled ) return;

      velocity.x -= velocity.x * 10 * delta;
      velocity.z -= velocity.z * 10 * delta;
      velocity.y -= 9.8 * 20 * delta;

      if (moveForward) velocity.z -= 180 * delta;
      if (moveBackward) velocity.z += 180 * delta;
      if (moveLeft) velocity.x -= 180 * delta;
      if (moveRight) velocity.x += 180 * delta

      console.log(velocity.z*delta);

      player.translateX( velocity.x * delta );
        player.translateY( velocity.y * delta );
      player.translateZ( velocity.z * delta);

      // ideally unnecessary
      if ( player.position.y < 10 ) {
            velocity.y = 0;
            player.position.y = 10;
            canJump = true;
      }

        };
};