public var play:boolean = true;
public var speed: int = 10;
public var moveDirection: Vector3;
public var grounded: boolean;
public var gravity: int = 1;

function Update () {
  if(play){
  if(Input.GetKey(KeyCode.Escape)){
  Application.Quit();
  }
   
  if(grounded){
  moveDirection = transform.TransformDirection(Vector3.forward);
  moveDirection *= speed;
  }
  moveDirection.y -= gravity * Time.deltaTime;
  if(Input.GetMouseButton(1)){
  var dx: int = Input.mousePosition.x - Screen.width / 2.0;
  var dy: int = Input.mousePosition.y - Screen.height / 2.0;
  var strawRadians: float = Mathf.Atan2(dx,dy);
  var strawDigrees:float = 360.0 * strawRadians/(2.0*Mathf.PI);
  transform.rotation.eulerAngles.y = strawDigrees;
  var controller : CharacterController = GetComponent(CharacterController);
  var flags = controller.Move(moveDirection * Time.deltaTime);
  grounded = (flags & CollisionFlags.CollidedBelow) != 0;
  }
  }
}