/// <summary>
/// Start a game. Clear the board, display the UI and if the first move is human,
/// let the user click a button, otherwise use Minimax to calculate computer move.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void StartButton_Click(object sender, EventArgs e)
{
this.startButton.Enabled = false;
this._board = new Board();
/*
* this.board = new Board(new Board.Cell[] {
* Board.Cell.Computer, Board.Cell.Empty, Board.Cell.Human,
* Board.Cell.Empty, Board.Cell.Human,Board.Cell.Empty,
* Board.Cell.Computer, Board.Cell.Computer, Board.Cell.Human
* });
*/
this.DrawBoard();
this.bottomInformationTextBox.Text = string.Empty;
if (this._currentMoveIsHuman)
{
this.topInformationTextBox.Text = Resources.Form1_Humans_turn;
}
else
{
this.topInformationTextBox.Text = Resources.Form1_Computers_turn;
var miniMaxTree = new MiniMaxTree(_board);
var bestMove = miniMaxTree.GetBestMove();
_board.Cells[bestMove.UpdatedCellIndex] = Board.Cell.Computer;
this.Process();
}
}
/// <summary>
/// Main method for actually processing the board. Update the UI and check to see
/// if someone has won, or we have a draw. If the game is not yet over, let the user
/// press a button, or calculate the next computer move accordingly.
/// </summary>
private void Process()
{
this.DrawBoard();
if (this._board.GetState() == Board.State.ComputerWins)
{
this.bottomInformationTextBox.Text = Resources.Form1_Computer_wins;
this.DisableAllCellButtons();
this.topInformationTextBox.Text = Resources.Form1_Press_Start_to_play_a_game;
this.startButton.Enabled = true;
this._currentMoveIsHuman = !this._currentMoveIsHuman;
}
else if (this._board.GetState() == Board.State.HumanWins)
{
this.bottomInformationTextBox.Text = Resources.Form1_Human_wins;
this.DisableAllCellButtons();
this.topInformationTextBox.Text = Resources.Form1_Press_Start_to_play_a_game;
this.startButton.Enabled = true;
this._currentMoveIsHuman = !this._currentMoveIsHuman;
}
else if (this._board.GetState() == Board.State.Draw)
{
this.bottomInformationTextBox.Text = Resources.From1_Draw;
this.DisableAllCellButtons();
this.topInformationTextBox.Text = Resources.Form1_Press_Start_to_play_a_game;
this.startButton.Enabled = true;
this._currentMoveIsHuman = !this._currentMoveIsHuman;
}
else
{
// The game hasn't finished yet (noone has won and it isn't a draw), so invert
// the current-move boolean.
this._currentMoveIsHuman = !this._currentMoveIsHuman;
if (this._currentMoveIsHuman)
{
// If the next move is human, set the text box and do nothing (wait for
// user to actually press a button)
this.topInformationTextBox.Text = Resources.Form1_Humans_turn;
}
else
{
// If the next move is computer, use Minimax to calculate the next move
// based on the current board
this.topInformationTextBox.Text = Resources.Form1_Computers_turn;
var miniMaxTree = new MiniMaxTree(_board);
var bestMove = miniMaxTree.GetBestMove();
_board.Cells[bestMove.UpdatedCellIndex] = Board.Cell.Computer;
this.Process();
}
}
}