Inheritance: NodeWithID
        public void Remove(INode obj)
        {
            if (obj is HUDNode)
                _guiNode = null;
            else
            {
                var damageEventNode = obj as HUDDamageEventNode;

                damageEventNode.healthComponent.isDamaged.subscribers -= OnDamageEvent;
                damageEventNode.healthComponent.isDead.subscribers -= OnDeadEvent;
            }
        }
 public void Remove(INode obj)
 {
     _guiNode = null;
 }
 public void Add(INode obj)
 {
     _guiNode = obj as HUDNode;
 }