static void Main(string[] args)
{
var game = new Chess.Chess.Game();
var secondsPerMove = 20;
while (game.BlackPosition.Any(x => x.symbol == "K") && game.WhitePosition.Any(x => x.symbol == "K"))
{
Chess.Chess.Piece move;
move = Chess.Chess.InterpretMove();
while (!game.ValidMove(move))
{
Console.WriteLine("Invalid move, try again");
move = Chess.Chess.InterpretMove();
}
game = game.Move(move);
Console.Write(game.ToString());
var tankerekke = GameNode.GetBestMoves(game, DateTime.Now.AddSeconds(secondsPerMove));
game = tankerekke.BestNode.game;
Console.Write(game.ToString());
}
return;
//while (tankerekke.game.BlackPosition.Any(x => x.symbol == "K") && tankerekke.game.WhitePosition.Any(x => x.symbol == "K")) {
// Console.Write(tankerekke.BestNode.game.ToString());
// Console.WriteLine("--------------------------------");
// tankerekke = GameNode.GetBestMoves(tankerekke.BestNode.game, 4);
//}
//while(tankerekke != null){
// Console.Write(tankerekke.game.ToString());
// Console.WriteLine("--------------------------------");
// tankerekke = tankerekke.BestNode;
//}
}
static void Main(string[] args)
{
var game = new Chess.Chess.Game();
Console.Write(game);
while (game.BlackPosition.Any(x => x.symbol == "K") && game.WhitePosition.Any(x => x.symbol == "K"))
{
Chess.Chess.Piece move;
do
{
move = Chess.Chess.InterpretMove();
} while (!game.ValidMove(move));
game = game.Move(move);
Console.Write(game.ToString());
var tankerekke = GameNode.GetBestMoves(game, 5);
game = tankerekke.BestNode.game;
Console.Write(game.ToString());
}
return;
//while (tankerekke.game.BlackPosition.Any(x => x.symbol == "K") && tankerekke.game.WhitePosition.Any(x => x.symbol == "K")) {
// Console.Write(tankerekke.BestNode.game.ToString());
// Console.WriteLine("--------------------------------");
// tankerekke = GameNode.GetBestMoves(tankerekke.BestNode.game, 4);
//}
//while(tankerekke != null){
// Console.Write(tankerekke.game.ToString());
// Console.WriteLine("--------------------------------");
// tankerekke = tankerekke.BestNode;
//}
}
public static Chess.Chess.Game getNewGame()
{
if (newGame == null)
{
newGame = new Chess.Chess.Game();
}
return(newGame);
}
public static GameNode GetBestMoves(Chess.Chess.Game _game, int stepsForward, DateTime finishTime, double alpha = -1000, double beta = 1000)
{
if (DateTime.Now >= finishTime)
{
throw new TimeoutException("Time limit exceeded.");
}
var gT = new GameNode(_game);
gT.score = gT.game.WhiteNext ? -1000 : 1000;
if (stepsForward <= 0)
{
gT.score = gT.game.evaluate();
return(gT);
}
else
{
if (gT.game.WhiteNext)
{
foreach (var move in _game.GetNextMoves())
{
var goodMoves = GetBestMoves(move, stepsForward - 1, finishTime, alpha, beta);
if (goodMoves.score > gT.score)
{
gT.score = goodMoves.score;
gT.BestNode = goodMoves;
}
alpha = Math.Max(alpha, gT.score);
if (alpha >= beta)
{
break;
}
}
}
else
{
foreach (var move in _game.GetNextMoves())
{
var goodMoves = GetBestMoves(move, stepsForward - 1, finishTime, alpha, beta);
if (goodMoves.score < gT.score)
{
gT.score = goodMoves.score;
gT.BestNode = goodMoves;
}
beta = Math.Min(beta, gT.score);
if (alpha >= beta)
{
break;
}
}
}
}
//Console.WriteLine(" " + stepsForward);
//Console.Write(_game.ToString());
//Console.WriteLine("Score: " + gT.score);
//Console.WriteLine("--------------------------------");
return(gT);
}
public static GameNode GetBestMoves(Chess.Chess.Game _game, int stepsForward, int alpha = -1000, int beta = 1000)
{
var gT = new GameNode(_game);
gT.score = gT.game.WhiteNext ? -1000 : 1000;
if (stepsForward <= 0)
{
gT.score = gT.game.evaluate();
return(gT);
}
else
{
if (gT.game.WhiteNext)
{
foreach (var move in _game.GetNextMoves())
{
var goodMoves = GetBestMoves(move, stepsForward - 1, alpha, beta);
if (goodMoves.score > gT.score)
{
gT.score = goodMoves.score;
gT.BestNode = goodMoves;
}
alpha = Math.Max(alpha, gT.score);
if (alpha >= beta)
{
break;
}
}
}
else
{
foreach (var move in _game.GetNextMoves())
{
var goodMoves = GetBestMoves(move, stepsForward - 1, alpha, beta);
if (goodMoves.score < gT.score)
{
gT.score = goodMoves.score;
gT.BestNode = goodMoves;
}
beta = Math.Min(beta, gT.score);
if (alpha >= beta)
{
break;
}
}
}
}
//Console.WriteLine(" " + stepsForward);
//Console.Write(_game.ToString());
//Console.WriteLine("Score: " + gT.score);
//Console.WriteLine("--------------------------------");
return(gT);
}
public void TestAISpeed()
{
//while(game.BlackPosition.Any(x => x.symbol == "K") && game.WhitePosition.Any(x => x.symbol == "K")) {
var game = new Chess.Chess.Game();
for (int ii = 1; ii <= 30; ii++)
{
var tankerekke = GameNode.GetBestMoves(game, 5);
game = tankerekke.BestNode.game;
Console.Write(game.ToString());
}
Assert.IsTrue(true);
}
public static GameNode GetBestMoves(Chess.Chess.Game _game, DateTime finishTime)
{
GameNode bestMove = GetBestMoves(_game, 1);
var nSteps = 2;
var halfTime = DateTime.Now.AddTicks((finishTime - DateTime.Now).Ticks);
try {
while (DateTime.Now < halfTime)
{
bestMove = GetBestMoves(_game, nSteps, finishTime);
nSteps = nSteps + 1;
}
}catch (TimeoutException) {
Console.WriteLine("Looking " + (nSteps - 1).ToString() + " steps ahead");
}
return(bestMove);
}
public GameNode(Chess.Chess.Game _game)
{
game = _game;
//gameTrees = new List<GameTree>();
}
public static GameNode GetBestMoves(Chess.Chess.Game _game, int stepsForward, double alpha = -1000, double beta = 1000)
{
return(GetBestMoves(_game, stepsForward, new DateTime(2099, 1, 1), alpha, beta));
}
