public static void Main(string[] args)
{
var tictactoe = new TicTacToe(false);
Minimax m = new Minimax();
m.Depth = 2;
while (!tictactoe.IsTerminal)
{
Console.Write('\n');
Console.WriteLine(tictactoe);
int pos = -1;
do
{
ConsoleKeyInfo cki;
do
{
Console.WriteLine("\nEnter slot: ");
cki = Console.ReadKey();
}while (!char.IsNumber(cki.KeyChar));
pos = int.Parse(cki.KeyChar.ToString());
} while (!tictactoe.CanPlay(pos));
Console.Write('\n');
tictactoe = (TicTacToe)tictactoe.Play(pos);
if (!tictactoe.IsTerminal)
{
tictactoe = (TicTacToe)m.Find(tictactoe).State;
}
}
Console.Write('\n');
Console.WriteLine(tictactoe);
if (tictactoe.Utility == 0)
{
Console.Write($"Game ends in a draw\n");
}
else
{
var winner = tictactoe.Utility == -1 ? 'x' : 'o';
Console.Write($"{winner} wins!\n");
}
}
public bool IsEqualTo(IState state)
{
if (state == null)
{
return(false);
}
if (!(state is TicTacToe))
{
return(false);
}
TicTacToe tictactoe = (TicTacToe)state;
for (int i = 0; i < _board.Length; i++)
{
if (_board[i] != tictactoe._board[i])
{
return(false);
}
}
return(true);
}