public void AddOnTriggerEnter2dDelegate(OnTriggerEnter2dDelegate del)
 {
     this.OnTriggerEnter2dDelegates += del;
 }
 public void RemoveOnTriggerEnter2dDelegate(OnTriggerEnter2dDelegate del)
 {
     this.OnTriggerEnter2dDelegates -= del;
 }
 public void RemoveOnTriggerEnter2dDelegate(OnTriggerEnter2dDelegate del)
 {
     this.OnTriggerEnter2dDelegates -= del;
 }
 public void AddOnTriggerEnter2dDelegate(OnTriggerEnter2dDelegate del)
 {
     this.OnTriggerEnter2dDelegates += del;
 }