public Boolean isValidMove(Move t)
{
PieceMove.Directions? dir = t.getMoveType();
if(dir == null)
return false;
PieceMove.Directions d = (PieceMove.Directions)dir;
switch (this.PieceType) {
case Type.p:
return this.isValidPawnDirection(d);
case Type.k:
return this.isValidKingDirection(d);
case Type.n:
return this.isValidKnightDirection(d);
case Type.q:
return this.isValidQueenDirection(d);
case Type.b:
return this.isValidBishopDirection(d);
case Type.r:
return this.isValidRookDirection(d);
}
return false;
}
public Move findBestMoveForCurrentPlayerNoDoUndo(int sec)
{
Move m0 = null, result = null;
if (this.CurrentTurn < 2 && this.CurrentColor == Piece.Color.White) {
if (rand.Next(1, 10) <= 3)
return new Move("a2-a3");
return new Move("b2-b3");
}
if (this.CurrentTurn < 2 && this.CurrentColor == Piece.Color.Black) {
if (lastMoves.Count > 0) {
PreviousMove pm = lastMoves.Pop();
switch (pm.Move.ToString()) {
case "a2-a3":
case "d2-d3":
m0 = new Move("d5-d4");
break;
default:
m0 = new Move("a5-a4");
break;
}
lastMoves.Push(pm);
return m0;
}
}
if (!cache.HasLoadedFile) {
cache.TryASyncLoad();
}
TimeSpan t = TimeSpan.FromSeconds(sec);
int d0 = 2, a0 = 0, v0 = 0, v = 0, negaresult = 0;
List<Move> moves = this.getMoves(this.CurrentColor);
DateTime start = DateTime.Now;
Board board;
while (t > DateTime.Now - start) {
a0 = -100000;
v = -100000;
foreach (Move m in moves) {
if (t < DateTime.Now - start) {
if (result == null) //if we didn't even have time to evaluate one level down, panic and just pick one.
result = m;
Console.WriteLine("Depth: {0}", d0);
return result;
}
board = new Board(this);
if (board.makeMove(m)) {
if (board.State != BoardState.Playing) {
if (board.State == BoardState.BlackWinner || board.State == BoardState.WhiteWinner) {
Console.WriteLine("Depth: {0}", d0);
return m; //this move is a winner, pick it!
}
}
negaresult = AI.negaMaxNodoUndo(board, d0, -100000, -a0, (t - (DateTime.Now - start)).TotalSeconds);
v0 = Math.Max(v, -negaresult);
a0 = Math.Max(a0, v0);
if (v0 >= v)
m0 = m;
v = Math.Max(v, v0);
}
}
++d0;
result = m0;
}
Console.WriteLine("Depth: {0}", d0);
return result;
}
public Boolean makeMove(Move move)
{
if (move == null)
return false;
if (!isValidSquare(move.To) || !isValidSquare(move.From))
return false;
Piece from = this.getPiece(move.From);
if (from == null)
return false;
if (from.PieceColor != CurrentColor)
return false;
Piece to = this.getPiece(move.To);
if (to != null && to.PieceColor == CurrentColor)
return false;
if (from.isValidMove(move)) {
this.board[move.To.x, move.To.y] = from;
this.board[move.From.x, move.From.y] = null;
PreviousMove lastMove = new PreviousMove();
lastMove.Move = move;
lastMove.FromPiece = from;
lastMove.ToPiece = to;
lastMove.CurrentState = this.State;
lastMove.CurrentColor = this.CurrentColor;
lastMove.CurrentTurn = this.CurrentTurn;
lastMove.CurrentHash = this.Hash;
this.lastMoves.Push(lastMove);
if (from.PieceType == Piece.Type.p) {
if (from.PieceColor == Piece.Color.Black) {
if (move.To.x == HEIGHT - 1) {
Piece nq = new Piece(Piece.Type.q, from.PieceColor);
this.board[move.To.x, move.To.y] = nq;
}
}
else {
if (move.To.x == 0) {
Piece nq = new Piece(Piece.Type.q, from.PieceColor);
this.board[move.To.x, move.To.y] = nq;
}
}
}
this.Hash = 0;
if (to != null && to.PieceType == Piece.Type.k)
this.State = from.PieceColor == Piece.Color.Black ? BoardState.BlackWinner : BoardState.WhiteWinner;
else {
this.CurrentColor = this.CurrentColor == Piece.Color.Black ? Piece.Color.White : Piece.Color.Black;
if (this.CurrentColor == Piece.Color.White)
++this.CurrentTurn;
if (CurrentTurn > 40)
this.State = BoardState.Draw;
}
return true;
}
return false;
}
static void Main(string[] args)
{
if (args.Length > 0) {
foreach (string arg in args) {
if (arg.Contains("-c:")) {
switch (arg.Replace("-c:", "")) {
case "B":
player = Mode.AIBlack;
break;
case "A":
player = Mode.AIBoth;
break;
case "N":
player = Mode.AINone;
break;
case "W":
default:
player = Mode.AIWhite;
break;
}
}
if (arg.Contains("-i")) {
outputICMS = true;
}
if (arg.Contains("-t:")) {
int usrtime;
if (int.TryParse(arg.Replace("-t:", ""), out usrtime))
moveTime = usrtime;
}
if (arg.Contains("-s"))
showBoard = true;
if (arg.Contains("-b"))
stepOutput = true;
}
}
Board board = new Board();
board.resetBoard();
Random rand = new Random();
Move m = null;
Boolean t = false;
while (board.State == Board.BoardState.Playing) {
if (showBoard) {
board.printToStdOut();
Console.WriteLine();
}
if (player == Mode.AIBoth || (player == Mode.AIBlack && board.CurrentColor == Piece.Color.Black) || (player == Mode.AIWhite && board.CurrentColor == Piece.Color.White)) {
while (!t) {
m = board.findBestMoveForCurrentPlayer(moveTime);
t = board.makeMove(m);
}
t = false;
if (outputICMS) {
Console.WriteLine("Giving my move to skirmish");
Console.Write("! ");
}
Console.WriteLine(m);
}
else {
while (!t) {
if (outputICMS)
Console.WriteLine("Getting move from skirmish");
else
Console.WriteLine("Please enter your move");
string play = Console.ReadLine();
if (string.IsNullOrEmpty(play))
continue;
play = play.Replace("!", "");
play = play.Trim();
m = new Move(play);
t = board.makeMove(m);
}
t = false;
}
if (stepOutput && !outputICMS)
Console.ReadLine();
}
if (outputICMS)
Console.Write("= ");
Console.WriteLine(Board.getStateString(board.State));
AI.saveTTable();
Board.saveCache();
if(stepOutput && !outputICMS)
Console.ReadLine();
}