private void NewGameSinglePlayerCommand_Executed(object sender, ExecutedRoutedEventArgs e)
 {
     
     gameController = new SinglePlayerGameController(gameGrid, gameOptions.SelectedIconSet);
     gameController.StartGame();
     
 }
 void MainWindow_Loaded(object sender, RoutedEventArgs e)
 {
     gameController = new SinglePlayerGameController(this.gameGrid, gameOptions.SelectedIconSet);
 }