public void AddOnTriggerStay2dDelegate(OnTriggerStay2dDelegate del)
 {
     this.OnTriggerStay2dDelegates += del;
 }
 public void RemoveOnTriggerStay2dDelegate(OnTriggerStay2dDelegate del)
 {
     this.OnTriggerStay2dDelegates -= del;
 }