/// <summary>
/// A helper method for competing two players against each other.
/// </summary>
/// <param name="xPlayer">The player to act first.</param>
/// <param name="oPlayer">The player to act second.</param>
/// <returns>
/// The square type of the winner, or SquareTypes.N if the game
/// was a draw.
/// </returns>
public static SquareTypes PlayGameToEnd(IPlayer xPlayer, IPlayer oPlayer)
{
TicTacToeGame game = new TicTacToeGame();
SquareTypes winner = SquareTypes.N;
// Play until we have a winner or the game board is full.
for (int moveNum = 0; moveNum < 9 && winner == SquareTypes.N; moveNum++)
{
IPlayer curPlayer;
SquareTypes curSquareType;
// Determine if it's X's or O's turn to act.
if (moveNum % 2 == 0)
{
curPlayer = xPlayer;
curSquareType = SquareTypes.X;
}
else
{
curPlayer = oPlayer;
curSquareType = SquareTypes.O;
}
// Get the next move from the current player.
var move = curPlayer.GetMove(game.Board);
// Check to make sure the player's move is legal.
Debug.Assert(game.IsEmpty(move.X, move.Y), "Player tried to make an illegal move!");
// Set the board to the player's move.
game.Board[move.X, move.Y] = curSquareType;
// Start checking if we have a winner once xPlayer has made
// at least 3 moves.
if (moveNum > 3)
{
winner = game.GetWinner();
}
}
// Return the square type of the winner, or SquareTypes.N if it was a draw.
return(winner);
}
/// <summary>
/// A helper method for competing two players against each other.
/// </summary>
/// <param name="xPlayer">The player to act first.</param>
/// <param name="oPlayer">The player to act second.</param>
/// <returns>
/// The square type of the winner, or SquareTypes.N if the game
/// was a draw.
/// </returns>
public static SquareTypes PlayGameToEnd(IPlayer xPlayer, IPlayer oPlayer)
{
TicTacToeGame game = new TicTacToeGame();
SquareTypes winner = SquareTypes.N;
// Play until we have a winner or the game board is full.
for (int moveNum = 0; moveNum < 9 && winner == SquareTypes.N; moveNum++)
{
IPlayer curPlayer;
SquareTypes curSquareType;
// Determine if it's X's or O's turn to act.
if (moveNum % 2 == 0)
{
curPlayer = xPlayer;
curSquareType = SquareTypes.X;
}
else
{
curPlayer = oPlayer;
curSquareType = SquareTypes.O;
}
// Get the next move from the current player.
var move = curPlayer.GetMove(game.Board);
// Check to make sure the player's move is legal.
Debug.Assert(game.IsEmpty(move.X, move.Y), "Player tried to make an illegal move!");
// Set the board to the player's move.
game.Board[move.X, move.Y] = curSquareType;
// Start checking if we have a winner once xPlayer has made
// at least 3 moves.
if(moveNum > 3)
winner = game.GetWinner();
}
// Return the square type of the winner, or SquareTypes.N if it was a draw.
return winner;
}