/// <summary>
/// Checks if there is a win for the player with the corresponding token.
/// If there is a win it passes the token back,
/// passes a empty token if there isn't a win.
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
private TicTacToeToken TryFinalizePlayer(TicTacToeToken token)
{
if (HorizontalWin(token) || VerticalWin(token) || LeftDiagonalWin(token) || RightDiagonalWin(token))
{
return(token);
}
return(TicTacToeToken.Empty);
}
/// <summary>
/// Return true if there is a right diagonal win for the corresponding token
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
private bool RightDiagonalWin(TicTacToeToken token)
{
if (TicTacToeBoard[2] == token && TicTacToeBoard[4] == token && TicTacToeBoard[6] == token)
{
TicTacToeWinPositions[0] = 2;
TicTacToeWinPositions[1] = 4;
TicTacToeWinPositions[2] = 6;
return(true);
}
return(false);
}
/// <summary>
/// Return true if there is a left diagonal win for the corresponding token
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
private bool LeftDiagonalWin(TicTacToeToken token)
{
if (TicTacToeBoard[0] == token && TicTacToeBoard[4] == token && TicTacToeBoard[8] == token)
{
TicTacToeWinPositions[0] = 0;
TicTacToeWinPositions[1] = 4;
TicTacToeWinPositions[2] = 8;
return(true);
}
return(false);
}
/// <summary>
/// The default tic tac toe game constructor
/// The first turn is for the X token.
/// </summary>
public TicTacToeGame()
{
CurrentTicTacToePlayer = TicTacToeToken.XToken;
TicTacToeBoard = new TicTacToeToken[9];
TicTacToeWinPositions = new int[3];
ResetBoard();
Player1Wins = 0;
Player2Wins = 0;
Ties = 0;
Paused = false;
}
/// <summary>
/// Return true if there is a vertical win for the corresponding token
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
private bool VerticalWin(TicTacToeToken token)
{
for (int column = 0; column < 3; column++)
{
if (TicTacToeBoard[column] == token && TicTacToeBoard[column + 3] == token && TicTacToeBoard[column + 6] == token)
{
TicTacToeWinPositions[0] = column;
TicTacToeWinPositions[1] = column + 3;
TicTacToeWinPositions[2] = column + 6;
return(true);
}
}
return(false);
}
/// <summary>
/// Return true if there is a horizontal win for the corresponding token
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
private bool HorizontalWin(TicTacToeToken token)
{
for (int row = 0; row < 7; row += 3)
{
if (TicTacToeBoard[row] == token && TicTacToeBoard[row + 1] == token && TicTacToeBoard[row + 2] == token)
{
TicTacToeWinPositions[0] = row;
TicTacToeWinPositions[1] = row + 1;
TicTacToeWinPositions[2] = row + 2;
return(true);
}
}
return(false);
}