private void PublishCircle()
 {
     if (!(tunnelEvent == null))
     {
         TunnelEventArgs tempArgs = new TunnelEventArgs(var_Tunnel_Wall);
         tunnelEvent(tempArgs);
     }
 }
 public void TunnelUpdate(TunnelEventArgs e)
 {
     var_Bounding_Circle = e.Circle;
 }