public void OnrSellButtonClick()
 {
     _moneyEvent.Raise(SelectedTower.SellCost);
     SelectedTower.Disable();
     SelectedTower.Sell();
     SelectedTower = null;
     _audioEvent.Raise((int)Sound.SellTower);
     _towerDeselected.Raise();
 }
 public void OnCancelButtonClick()
 {
     SelectedTower.Disable();
     SelectedTower = null;
     _towerDeselected.Raise();
 }