// Update is called once per frame
 void Update()
 {
     if (Input.GetMouseButtonDown(0))
     {
         RaycastHit hit;
         Ray        ray = Camera.main.ScreenPointToRay(Input.mousePosition);
         if (Physics.Raycast(ray, out hit))
         {
             OpenDoor door = hit.collider.GetComponentInParent <OpenDoor>();
             if (door)
             {
                 door.Animate();
             }
         }
     }
 }