public override NodeState SendAttackNotification(int x, int y, BattleshipStateTracker player)
 {
     if (_player1 == player)
     {
         return(_player2.SendAttackNotification(x, y));
     }
     else if (_player2 == player)
     {
         return(_player1.SendAttackNotification(x, y));
     }
     else
     {
         return(NodeState.Empty);
     }
 }