public Move NextMove()
{
Move a = new Move(1, 1);
int max = int.MinValue;
int alpha = int.MinValue;
int beta = int.MaxValue;
Random random = new Random();
List <Move> moveList = game.GetPossibleMoves(maxMoveSearch, game.isXMove ? 1 : 2);
for (int i = 0; i < moveList.Count; i++)
{
int row = moveList[i].row;
int col = moveList[i].column;
game.NextMove(row, col);
int value = GetScore(row, col, false, alpha, beta) + random.Next(-1, 2);
game.RemoveMove(row, col);
if (value > max)
{
max = value;
a.row = row;
a.column = col;
}
alpha = Math.Max(alpha, max);
}
return(a);
}
private void Undo(object sender, RoutedEventArgs e)
{
if (undoMoves.Count <= 1)
{
return;
}
mainGrid.IsEnabled = true;
Move move = undoMoves.Pop();
gameLogic.RemoveMove(move.row, move.column);
buttonBoard[move.row, move.column].Background = Brushes.White;
buttonBoard[move.row, move.column].Content = "";
redoMoves.Push(move);
move = undoMoves.Pop();
gameLogic.RemoveMove(move.row, move.column);
buttonBoard[move.row, move.column].Background = Brushes.White;
redoMoves.Push(move);
buttonBoard[move.row, move.column].Content = "";
if (undoMoves.Count > 0)
{
buttonBoard[undoMoves.Peek().row, undoMoves.Peek().column].Background = Brushes.Yellow;
}
if (undoMoves.Count <= 1)
{
UndoButton.IsEnabled = false;
}
RedoButton.IsEnabled = true;
}
private void Redo(object sender, RoutedEventArgs e)
{
Move move = redoMoves.Pop();
ApplyMove(move.row, move.column);
if (redoMoves.Count > 0)
{
move = redoMoves.Pop();
ApplyMove(move.row, move.column);
}
buttonBoard[move.row, move.column].Background = Brushes.Yellow;
if (redoMoves.Count == 0)
{
RedoButton.IsEnabled = false;
}
UndoButton.IsEnabled = true;
}
private void ComputerNextMove()
{
Dispatcher.Invoke((Action)(() =>
{
MainMenu.IsEnabled = false;
mainGrid.IsEnabled = false;
}));
Move move = computer.NextMove();
Dispatcher.Invoke((Action)(() =>
{
mainGrid.IsEnabled = true;
ApplyMove(move.row, move.column);
if (gameLogic.CheckWin(move.row, move.column))
{
MessageBox.Show(Application.Current.MainWindow, "Computer won", "End Game");
mainGrid.IsEnabled = false;
}
MainMenu.IsEnabled = true;
}));
}
