private void registerBubble()
 {
     if (this.bubble != null)
     {
         return;
     }
     this.bubble = OxygenManager.registerBubble(base.transform, 24f);
 }
 private void deregisterBubble()
 {
     OxygenManager.deregisterBubble(this.bubble);
     this.bubble = null;
 }