public override ReadOnlyCollection<Move> GetValidMoves(Position from, bool returnIfAny, ChessGame game, Func<Move, bool> gameMoveValidator)
{
ChessUtilities.ThrowIfNull(from, "from");
List<Move> validMoves = new List<Move>();
Piece piece = game.GetPieceAt(from);
int l0 = game.BoardHeight;
int l1 = game.BoardWidth;
for (int i = -7; i < 8; i++)
{
if (i == 0)
continue;
if (from.Rank + i > 0 && from.Rank + i <= l0)
{
Move move = new Move(from, new Position(from.File, from.Rank + i), piece.Owner);
if (gameMoveValidator(move))
{
validMoves.Add(move);
if (returnIfAny)
return new ReadOnlyCollection<Move>(validMoves);
}
}
if ((int)from.File + i > -1 && (int)from.File + i < l1)
{
Move move = new Move(from, new Position(from.File + i, from.Rank), piece.Owner);
if (gameMoveValidator(move))
{
validMoves.Add(move);
if (returnIfAny)
return new ReadOnlyCollection<Move>(validMoves);
}
}
}
return new ReadOnlyCollection<Move>(validMoves);
}
public List<String> Generate(ChessGame game)
{
var result = game.Info.Select(tag => "[" + tag.Key + " \"" + tag.Value + "\"]").ToList();
result.Add("");
result.Add(GenerateMovetext(game));
return result;
}
public void Set(ChessGame g)
{
idx = -1;
move = null;
total_moves = 0;
if (g == null)
{
player = ChessGamePlayer.
CreatePlayer ();
return;
}
player = g.HasTag ("FEN") ? ChessGamePlayer.
CreateFromFEN (g.
GetTagValue ("FEN",
null)) :
ChessGamePlayer.CreatePlayer ();
game = g;
int n = game.Moves.Count;
if (n > 0)
{
total_moves = n;
}
if (total_moves == 0)
hasNext = false;
else
hasNext = true;
}
public static void TestAfter1e4()
{
ChessGame game = new ChessGame();
game.ApplyMove(new Move("E2", "E4", Player.White), true);
string fen = game.GetFen();
Assert.AreEqual("rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1", fen);
}
public static void TestAfter1c5()
{
ChessGame game = new ChessGame();
game.ApplyMove(new Move("E2", "E4", Player.White), true);
game.ApplyMove(new Move("C7", "C5", Player.Black), true);
string fen = game.GetFen();
Assert.AreEqual("rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq c6 0 2", fen);
}
public override ReadOnlyCollection<Move> GetValidMoves(Position from, bool returnIfAny, ChessGame game, Func<Move, bool> gameMoveValidator)
{
ChessUtilities.ThrowIfNull(from, "from");
ReadOnlyCollection<Move> horizontalVerticalMoves = new Rook(Owner).GetValidMoves(from, returnIfAny, game, gameMoveValidator);
if (returnIfAny && horizontalVerticalMoves.Count > 0)
return horizontalVerticalMoves;
ReadOnlyCollection<Move> diagonalMoves = new Bishop(Owner).GetValidMoves(from, returnIfAny, game, gameMoveValidator);
return new ReadOnlyCollection<Move>(horizontalVerticalMoves.Concat(diagonalMoves).ToList());
}
public static void TestMovingWhiteKingLosingCastlingRights()
{
ChessGame game = new ChessGame();
game.ApplyMove(new Move("E2", "E4", Player.White), true);
game.ApplyMove(new Move("C7", "C5", Player.Black), true);
game.ApplyMove(new Move("E1", "E2", Player.White), true);
string fen = game.GetFen();
Assert.AreEqual("rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPPKPPP/RNBQ1BNR b kq - 1 2", fen);
}
public static void TestMovingBlackKingLosingCastlingRights()
{
ChessGame game = new ChessGame();
game.ApplyMove(new Move("E2", "E4", Player.White), true);
game.ApplyMove(new Move("E7", "E5", Player.Black), true);
game.ApplyMove(new Move("G1", "F3", Player.White), true);
game.ApplyMove(new Move("E8", "E7", Player.Black), true);
string fen = game.GetFen();
Assert.AreEqual("rnbq1bnr/ppppkppp/8/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQ - 2 3", fen);
}
public static int GetIndexOnBoard(this GamePeice peice, ChessGame game)
{
for (var i = 0; i < game.Board.Count; i++)
{
if (game.Board[i].Equals(peice))
{
return(i);
}
}
return(-1);
}
static void Main(string[] args)
{
// Let's start by creating a chess game instance.
ChessGame game = new ChessGame();
// Now the game's board is in the start position and it's white's turn.
Console.WriteLine("It's this color's turn: {0}", game.WhoseTurn);
// This is how to find out which piece is at a certain position:
Piece pieceAtA1 = game.GetPieceAt(new Position("A1")); // Or "a1", the casing doesn't matter
/* There are other overloading options as well:
* game.GetPieceAt(new Position(File.A, 1));
* game.GetPieceAt(File.A, 1);
* All those three options return the same. */
Console.WriteLine("What piece is there at A1? {0}", pieceAtA1.GetFenCharacter());
// GetFenCharacter() returns the FEN character for the given piece. White piece: uppercase, black piece: lowercase. The character is the first char of a piece's name (exception: Knight -> N/n because King -> K/k).
// The Piece class is the abstract base class for pieces. All piece classes (e.g. Rook) derive from this class.
// White has to make a turn. They want to move their E2 pawn to E4. Is that valid?
Move e2e4 = new Move("E2", "E4", Player.White);
bool isValid = game.IsValidMove(e2e4);
Console.WriteLine("E2-E4 for white is valid: {0}", isValid);
// Great, it's valid! So white wants to actually make that move.
MoveType type = game.ApplyMove(e2e4, true);
// The first argument is the move, the second argument indicates whether it's already validated. Here it is, so pass 'true'. If it's not validated yet, ApplyMove will do it. **Only pass `true` if it's really validated! If you pass `true`, ApplyMove won't do ANY validity checks.**
// The return type is the MoveType enum. It holds one, or a combination, of these values: Invalid, Move, Capture, Castling, Promotion
// Each valid move will always carry the 'Move' value. If it's also something else, it will carry both values (e.g. if the move is a capture, `type` will have the value MoveType.Move | MoveType.Capture).
// MoveType is a flags enumeration. https://msdn.microsoft.com/en-us/library/ms229062%28v=vs.100%29.aspx
// e4 is just a normal move, so `type` will just be MoveType.Move.
Console.WriteLine("Move type: {0}", type);
// Now it's black's turn.
Console.WriteLine("It's this color's turn: {0}", game.WhoseTurn);
// You can figure out all valid moves using GetValidMoves.
IEnumerable <Move> validMoves = game.GetValidMoves(Player.Black);
// Here it returns all valid moves for black, but you can also find all valid moves *from a certain position* by passing a Position instance as argument.
Console.WriteLine("How many valid moves does black have? {0}", validMoves.Count());
// It might happen that you don't really care about all valid moves, but just want to know if there are valid moves. Chess.NET also has a method for that:
bool hasValidMoves = game.HasAnyValidMoves(Player.Black);
// Again, you can also pass a Position instance here.
Console.WriteLine("Black has any valid moves: {0}", hasValidMoves);
// Congratulations! You have learned about the most important methods of Chess.NET. Enjoy using the library :)
Console.ReadKey();
}
public ChessGame AppliedTo(ChessGame game)
{
Player prevPlayer =
game.WhoseTurn == Player.White
? Player.Black
: Player.White;
var creationData = game.GetGameCreationData();
creationData.WhoseTurn = prevPlayer;
creationData.CanWhiteCastleKingSide = CouldWhiteCastleKingSide;
creationData.CanWhiteCastleQueenSide = CouldWhiteCastleQueenSide;
creationData.CanBlackCastleKingSide = CouldBlackCastleKingSide;
creationData.CanBlackCastleQueenSide = CouldBlackCastleQueenSide;
creationData.FullMoveNumber = 1;
creationData.HalfMoveClock = 1;
creationData.EnPassant = OldEpSquare;
bool isCastling = IsCastling(game);
if (isCastling)
{
UndoCastling(creationData);
}
else
{
Piece movedPiece = new Pawn(prevPlayer);
if (Move.Promotion == null)
{
movedPiece = game.GetPieceAt(Move.NewPosition);
}
if (movedPiece is Pawn && OldEpSquare == Move.NewPosition)
{
int offset = prevPlayer == Player.White ? 1 : -1;
creationData.Board[8 - Move.NewPosition.Rank + offset][(int)Move.NewPosition.File] = CapturedPiece;
creationData.Board[8 - Move.NewPosition.Rank][(int)Move.NewPosition.File] = null;
creationData.Board[8 - Move.OriginalPosition.Rank][(int)Move.OriginalPosition.File] = movedPiece;
}
else
{
creationData.Board[8 - Move.NewPosition.Rank][(int)Move.NewPosition.File] = CapturedPiece;
creationData.Board[8 - Move.OriginalPosition.Rank][(int)Move.OriginalPosition.File] = movedPiece;
}
}
creationData.Moves = new DetailedMove[0];
// IT ADDS A PAWN MOVE IF EnPassant IS SET... WTF IS THIS LIBRARY...
return(new ChessGame(creationData));
}
private void fENToolStripMenuItem_Click(object sender, EventArgs e)
{
var fenForm = new FenForm();
fenForm.FEN = ChessGame.GetFEN();
if (fenForm.ShowDialog(this) == DialogResult.OK)
{
ChessGame.LoadFEN(fenForm.FEN);
panel1.Invalidate();
}
}
public ActionResult <ChessGame> Post([FromBody] ChessGame chessGame)
{
if (chessGame == null)
{
return(BadRequest());
}
appContext.ChessGames.Add(chessGame);
appContext.SaveChanges();
return(Ok(chessGame));
}
public void PrintBoard(ChessGame game)
{
if (game.ActiveColor.IsWhite())
{
PrintWhiteBoard(game.Board);
}
else
{
PrintBlackBoard(game.Board);
}
}
public static void TestMovingBlackKingLosingCastlingRights()
{
var game = new ChessGame();
game.ApplyMove(new Move("E2", "E4", Player.White), true);
game.ApplyMove(new Move("E7", "E5", Player.Black), true);
game.ApplyMove(new Move("G1", "F3", Player.White), true);
game.ApplyMove(new Move("E8", "E7", Player.Black), true);
Assert.AreEqual("rnbq1bnr/ppppkppp/8/4p3/4P3/5N2/PPPP1PPP/RNBQKB1R w KQ - 2 3", game.GetFen());
}
public static void TestMovingBlackARookLosingCastlingRights()
{
var game = new ChessGame();
game.ApplyMove(new Move("E2", "E4", Player.White), true);
game.ApplyMove(new Move("A7", "A6", Player.Black), true);
game.ApplyMove(new Move("G1", "F3", Player.White), true);
game.ApplyMove(new Move("A8", "A7", Player.Black), true);
Assert.AreEqual("1nbqkbnr/rppppppp/p7/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQk - 2 3", game.GetFen());
}
public static void TestMovingBlackHRookLosingCastlingRights()
{
var game = new ChessGame();
game.ApplyMove(new Move("E2", "E4", Player.White), true);
game.ApplyMove(new Move("H7", "H6", Player.Black), true);
game.ApplyMove(new Move("G1", "F3", Player.White), true);
game.ApplyMove(new Move("H8", "H7", Player.Black), true);
Assert.AreEqual("rnbqkbn1/pppppppr/7p/8/4P3/5N2/PPPP1PPP/RNBQKB1R w KQq - 2 3", game.GetFen());
}
public async Task <IActionResult> Create([Bind("Id,Fen,gameDate,userName")] ChessGame chessGame)
{
if (ModelState.IsValid)
{
_context.Add(chessGame);
await _context.SaveChangesAsync();
return(RedirectToAction(nameof(Index)));
}
return(View(chessGame));
}
private void SaveAllFens(IEnumerable <ChessMove> moves, ChessGame game, FinalGameResult result)
{
Positions.Add(FenData.FromGameState(game, result));
foreach (var move in moves)
{
game.MakeMove(move, true);
var fenData = FenData.FromGameState(game, result);
Positions.Add(fenData);
}
}
public ChessGame Parse(IEnumerable<String> pgn, IChessMoveNotation moveNotation)
{
var lines = pgn.GetEnumerator();
var metainfo = ParseTags(lines);
var movetext = ParseMovetext(lines);
var game = new ChessGame(metainfo);
foreach (ChessMove cm in ParseMoves(movetext, moveNotation, game.Players))
game.AddMove(cm);
return game;
}
public static void printCaptured(ChessGame game)
{
Console.WriteLine("Captured:");
Console.Write("White: ");
printHash(game.Captured(Color.white));
Console.Write("Black: ");
ConsoleColor aux = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Yellow;
printHash(game.Captured(Color.black));
Console.ForegroundColor = aux;
}
/**
* Toggles the menu on each hand. If the menu button is pressed then the menu will
* initialize on the hand which the button was pressed. The menu will disappear if
* the menu button is pressed while the menu is active.
*/
void ToggleMenu(string side)
{
game = GameObject.Find("Chess_set").GetComponent <ChessGame>();
if (isMenuActive)
{
GameObject leftController = this.transform.Find("Controller (left)").gameObject;
GameObject rightController = this.transform.Find("Controller (right)").gameObject;
leftController.GetComponent <NVRExampleTeleporter>().enabled = true;
rightController.GetComponent <NVRExampleTeleporter>().enabled = true;
leftController.transform.Find("Menu").gameObject.SetActive(false);
rightController.transform.Find("Menu").gameObject.SetActive(false);
leftController.transform.GetComponent <ChessMenuPointer>().enabled = false;
leftController.transform.GetComponent <ChessMenuPointer>().enabled = false;
isMenuActive = false;
sideActive = "";
}
else
{
if (side == "left")
{
GameObject leftController = this.transform.Find("Controller (left)").gameObject;
GameObject rightController = this.transform.Find("Controller (right)").gameObject;
leftController.GetComponent <NVRExampleTeleporter>().enabled = false;
rightController.GetComponent <NVRExampleTeleporter>().enabled = false;
leftController.transform.Find("Menu").gameObject.SetActive(true);
rightController.transform.GetComponent <ChessMenuPointer>().enabled = true;
sideActive = "left";
}
if (side == "right")
{
GameObject leftController = this.transform.Find("Controller (left)").gameObject;
GameObject rightController = this.transform.Find("Controller (right)").gameObject;
leftController.GetComponent <NVRExampleTeleporter>().enabled = false;
rightController.GetComponent <NVRExampleTeleporter>().enabled = false;
rightController.transform.Find("Menu").gameObject.SetActive(true);
leftController.transform.GetComponent <ChessMenuPointer>().enabled = true;
sideActive = "right";
}
isMenuActive = true;
}
}
public ChessBoardHistoryEntry(ChessGame game)
{
GCD = game.GetGameCreationData();
if (GCD.Moves.Length > 0)
{
Move = GCD.Moves.Last();
GCD.Moves = new DetailedMove[1] {
Move
};
}
}
private string GetCapturedPieces(ChessGame game, ChessColor color)
{
StringBuilder sb = new StringBuilder();
ChessPiece[] captured = game.Board.CapturedPieces.Where(p => p.Color == color).ToArray();
sb = new StringBuilder();
foreach (ChessPiece cap in captured)
{
sb.Append(cap.ToString() + " ");
}
return((sb.ToString() + new string(' ', 16)).Substring(0, 16));
}
protected virtual bool CanCastle(Position origin, Position destination, ChessGame game)
{
if (!HasCastlingAbility) return false;
if (Owner == Player.White)
{
if (origin.File != File.E || origin.Rank != 1)
return false;
if (game.IsInCheck(Player.White))
return false;
if (destination.File == File.C)
{
if (!game.CanWhiteCastleQueenSide || game.GetPieceAt(File.D, 1) != null
|| game.GetPieceAt(File.C, 1) != null
|| game.GetPieceAt(File.B, 1) != null
|| game.WouldBeInCheckAfter(new Move(new Position(File.E, 1), new Position(File.D, 1), Player.White), Player.White)
|| game.WouldBeInCheckAfter(new Move(new Position(File.E, 1), new Position(File.C, 1), Player.White), Player.White))
return false;
}
else
{
if (!game.CanWhiteCastleKingSide || game.GetPieceAt(File.F, 1) != null
|| game.GetPieceAt(File.G, 1) != null
|| game.WouldBeInCheckAfter(new Move(new Position(File.E, 1), new Position(File.F, 1), Player.White), Player.White)
|| game.WouldBeInCheckAfter(new Move(new Position(File.E, 1), new Position(File.G, 1), Player.White), Player.White))
return false;
}
}
else
{
if (origin.File != File.E || origin.Rank != 8)
return false;
if (game.IsInCheck(Player.Black))
return false;
if (destination.File == File.C)
{
if (!game.CanBlackCastleQueenSide || game.GetPieceAt(File.D, 8) != null
|| game.GetPieceAt(File.C, 8) != null
|| game.GetPieceAt(File.B, 8) != null
|| game.WouldBeInCheckAfter(new Move(new Position(File.E, 8), new Position(File.D, 8), Player.Black), Player.Black)
|| game.WouldBeInCheckAfter(new Move(new Position(File.E, 8), new Position(File.C, 8), Player.Black), Player.Black))
return false;
}
else
{
if (!game.CanBlackCastleKingSide || game.GetPieceAt(File.F, 8) != null
|| game.GetPieceAt(File.G, 8) != null
|| game.WouldBeInCheckAfter(new Move(new Position(File.E, 8), new Position(File.F, 8), Player.Black), Player.Black)
|| game.WouldBeInCheckAfter(new Move(new Position(File.E, 8), new Position(File.G, 8), Player.Black), Player.Black))
return false;
}
}
return true;
}
public void SetInitialPosition(string fen)
{
Entries.Clear();
Plies = 0;
var game = new ChessGame(fen);
Entries = new List <ChessBoardHistoryEntry>
{
new ChessBoardHistoryEntry(game)
};
Entries[0].Move = null;
}
public ChessForm()
{
InitializeComponent();
chessPanel.BackColor = Color.Gray;
GamePoint.SIDE_LENGTH = chessPanel.Height / 8;
if (chessPanel.Height != chessPanel.Width)
{
throw new Exception("Chess game needs a square panel");
}
game = new ChessGame(chessPanel.Height);
Invalidate();
}
/// <summary>
/// Parse a rochade draw from the given PGN content.
/// </summary>
/// <param name="game">The chess game with all previous draws.</param>
/// <param name="content">The PGN content to be parsed.</param>
/// <returns>The parsed rochade draw</returns>
private ChessDraw?parseRochade(ChessGame game, string content)
{
int row = (game.SideToDraw == ChessColor.White) ? 0 : 7;
int column = content.Equals(LITTLE_ROCHADE) ? 6 : 2;
var oldPos = new ChessPosition(row, 4);
var newPos = new ChessPosition(row, column);
ChessDraw?draw = new ChessDraw(game.Board, oldPos, newPos);
return(draw);
}
public Move GenerateMove(ChessGame game)
{
if (!game.HasAnyValidMoves(game.WhoseTurn))
{
return(null);
}
var moves = game.GetValidMoves(game.WhoseTurn).ToList();
var randomIndex = random.Next(0, moves.Count);
return(moves[randomIndex]);
}
public override bool IsValidMove(Move move, ChessGame game)
{
ChessUtilities.ThrowIfNull(move, "move");
ChessUtilities.ThrowIfNull(game, "game");
Position origin = move.OriginalPosition;
Position destination = move.NewPosition;
PositionDistance posDelta = new PositionDistance(origin, destination);
if ((posDelta.DistanceX != 2 || posDelta.DistanceY != 1) && (posDelta.DistanceX != 1 || posDelta.DistanceY != 2))
return false;
return true;
}
internal override bool IsValidGameMove(Move move, ChessGame board)
{
// No need to do null checks here, this method isn't public and isn't annotated with nullable.
// If the caller try to pass a possible null reference, the compiler should issue a warning.
// TODO: Should I add [NotNull] attribute to the arguments? What's the benefit?
// The arguments are already non-nullable.
int deltaX = move.GetAbsDeltaX();
int deltaY = move.GetAbsDeltaY();
return((deltaX == 1 && deltaY == 2) || (deltaX == 2 && deltaY == 1));
}
private void saveToolStripMenuItem_Click(object sender, EventArgs e)
{
var sfd = new SaveFileDialog();
if (sfd.ShowDialog(this) == DialogResult.OK)
{
while (MoveForWards())
{
}
ChessGame.Save(sfd.FileName);
}
}
public static void Test960CastlingBlack2()
{
ChessGame game = new ChessGame("r1k3br/pppp2pp/2n2p2/8/7N/8/PKP2PPP/3R2BR b kq - 2 12");
Assert.True(game.IsValidMove(new Move("C8", "A8", Player.Black)), "Queenside castling should be valid.");
Assert.False(game.IsValidMove(new Move("C8", "H8", Player.Black)), "Kingside castling should be invalid.");
Assert.Contains(new Move("C8", "A8", Player.Black), game.GetValidMoves(Player.Black));
Assert.Contains(new Move("C8", "A8", Player.Black), game.GetValidMoves(new Position("C8")));
game.MakeMove(new Move("C8", "A8", Player.Black), true);
Assert.AreEqual("2kr2br/pppp2pp/2n2p2/8/7N/8/PKP2PPP/3R2BR w - - 3 13", game.GetFen());
}
public void PromptCommand(ChessGame game)
{
Console.ForegroundColor = PromptColor;
if (game != null && game.GameStatus == ChessGameStatus.ChessGameStatus_Playing)
{
Console.Write("Chess[" + game.GameName + "]:" + game.NextTurnPlayer.ToString() + ":> ");
}
else
{
Console.Write("Chess:> ");
}
Console.ResetColor();
}
public static void Test960CastlingWhite2()
{
ChessGame game = new ChessGame("bbrqknr1/pp1ppppp/6n1/2p5/4P3/5Q2/PPPP1PPP/BBR1KNRN w KQkq - 2 3");
Assert.True(game.IsValidMove(new Move("E1", "C1", Player.White)), "Queenside castling should be valid.");
Assert.False(game.IsValidMove(new Move("E1", "G1", Player.White)), "Kingside castling should be invalid.");
Assert.Contains(new Move("E1", "C1", Player.White), game.GetValidMoves(Player.White));
Assert.Contains(new Move("E1", "C1", Player.White), game.GetValidMoves(new Position("E1")));
game.MakeMove(new Move("E1", "C1", Player.White), true);
Assert.AreEqual("bbrqknr1/pp1ppppp/6n1/2p5/4P3/5Q2/PPPP1PPP/BBKR1NRN b kq - 3 3", game.GetFen());
}
public static void Test960CastlingBlack1()
{
ChessGame game = new ChessGame("q1nbrk1r/pp2p1pp/2npbp2/8/4P3/1P3P2/P1PP1BPP/QNNBRRK1 b kq - 3 6");
Assert.True(game.IsValidMove(new Move("F8", "H8", Player.Black)), "Kingside castling should be valid.");
Assert.False(game.IsValidMove(new Move("F8", "E8", Player.Black)), "Queenside castling should be invalid.");
Assert.Contains(new Move("F8", "H8", Player.Black), game.GetValidMoves(Player.Black));
Assert.Contains(new Move("F8", "H8", Player.Black), game.GetValidMoves(new Position("F8")));
game.MakeMove(new Move("F8", "H8", Player.Black), true);
Assert.AreEqual("q1nbrrk1/pp2p1pp/2npbp2/8/4P3/1P3P2/P1PP1BPP/QNNBRRK1 w - - 4 7", game.GetFen());
}
private void newToolStripMenuItem_Click(object sender, EventArgs e)
{
if (
MessageBox.Show(this, "Are you sure?", "New chess game", MessageBoxButtons.YesNo,
MessageBoxIcon.Question) == DialogResult.Yes)
{
checkBoxAIblack.Checked = false;
checkBoxAI_white.Checked = false;
listView1.Items.Clear();
ChessGame.New();
panel1.Invalidate();
}
}
public ActionResult <ChessGame> Delete(int id)
{
ChessGame chessGame = appContext.ChessGames.FirstOrDefault(x => x.Id == id);
if (chessGame == null)
{
return(NotFound());
}
appContext.ChessGames.Remove(chessGame);
appContext.SaveChanges();
return(Ok(chessGame));
}
public static void TestCastling_KingE_RooksCF()
{
ChessGame game = new ChessGame("bnrbkrnq/pppppppp/8/8/8/8/PPPPPPPP/BNRBKRNQ w KQkq - 0 1");
string[] moves = { "b2b3", "h7h6", "a1b2", "g7g6", "b1a3", "e7e6", "c2c3", "d7d6", "d1c2", "c7c6", "g1f3", "b7b6", "h2h3", "a7a6", "h1h2", "f7f6" };
foreach (string m in moves)
{
game.MakeMove(new Move(m.Substring(0, 2), m.Substring(2, 2), game.WhoseTurn), true);
}
Assert.True(game.IsValidMove(new Move("E1", "C1", Player.White)));
Assert.True(game.IsValidMove(new Move("E1", "F1", Player.White)));
}
public window(bool isStandardChess)
{
boxes = new List <PictureBox>(64);
InitializeComponent();
AddBoxes();
currentGame = new ChessGame(isStandardChess);
//this.playerWhiteName.Text = firstName;
//this.playerBlackName.Text = SecondName;
RefreshItColors();
RefreshFigures();
isWhitePlayersTurn = true;
}
public ServerManager(IPlayer whitePlayer, IPlayer blackPlayer)
{
this.whitePlayer = whitePlayer;
this.blackPlayer = blackPlayer;
whitePlayer.PlayerActedEvent += SetPlayerAct;
blackPlayer.PlayerActedEvent += SetPlayerAct;
chessGame = new ChessGame();
GameSituation gameSituation = chessGame.InitializeBoard();
whitePlayer.SetGameSituation(gameSituation);
blackPlayer.SetGameSituation(gameSituation);
}
public static void Test960CastlingWhite1()
{
ChessGame game = new ChessGame("qnbbrkr1/pppp1ppp/6n1/4p3/8/1P4N1/P1PPPPPP/QNBBRKR1 w KQkq - 1 3");
Assert.True(game.IsValidMove(new Move("F1", "G1", Player.White)), "Kingside castling should be valid.");
Assert.False(game.IsValidMove(new Move("F1", "E1", Player.White)), "Queenside castling should be invalid.");
Assert.Contains(new Move("F1", "G1", Player.White), game.GetValidMoves(Player.White));
Assert.Contains(new Move("F1", "G1", Player.White), game.GetValidMoves(new Position("F1")));
game.MakeMove(new Move("F1", "G1", Player.White), true);
Assert.AreEqual("qnbbrkr1/pppp1ppp/6n1/4p3/8/1P4N1/P1PPPPPP/QNBBRRK1 b kq - 2 3", game.GetFen());
}
public override bool IsValidMove(Move move, ChessGame game)
{
ChessUtilities.ThrowIfNull(move, "move");
Position origin = move.OriginalPosition;
Position destination = move.NewPosition;
PositionDistance distance = new PositionDistance(origin, destination);
if ((distance.DistanceX != 1 || distance.DistanceY != 1)
&& (distance.DistanceX != 0 || distance.DistanceY != 1)
&& (distance.DistanceX != 1 || distance.DistanceY != 0)
&& (distance.DistanceX != 2 || distance.DistanceY != 0))
return false;
if (distance.DistanceX != 2)
return true;
return CanCastle(origin, destination, game);
}
public override bool IsValidMove(Move move, ChessGame game)
{
bool validByStandardRules = base.IsValidMove(move, game);
if (validByStandardRules) return true;
if (move.OriginalPosition.Rank == 1 &&
move.NewPosition.Rank == 3 &&
move.OriginalPosition.File == move.NewPosition.File &&
game.GetPieceAt(move.NewPosition) == null &&
game.GetPieceAt(new Position(move.OriginalPosition.File, move.OriginalPosition.Rank + 1)) == null)
// Horde pawns at the first rank can also move two squares on their first move. However, these can't be en-passant captured.
{
return true;
}
return false;
}
public String GenerateMovetext(ChessGame game)
{
var movetext = new StringBuilder();
var moveCount = 1;
foreach (var m in game.Moves)
{
if (moveCount % 2 == 1)
movetext.Append((moveCount+1)/2 + ". ");
movetext.Append(m + " ");
moveCount++;
}
if (movetext.Length > 0)
movetext.Remove(movetext.Length - 1, 1);
return movetext.ToString();
}
public override bool IsValidMove(Move move, ChessGame game)
{
ChessUtilities.ThrowIfNull(move, "move");
ChessUtilities.ThrowIfNull(game, "game");
Position origin = move.OriginalPosition;
Position destination = move.NewPosition;
PositionDistance posDelta = new PositionDistance(origin, destination);
if (posDelta.DistanceX != 0 && posDelta.DistanceY != 0)
return false;
bool increasingRank = destination.Rank > origin.Rank;
bool increasingFile = (int)destination.File > (int)origin.File;
if (posDelta.DistanceX == 0)
{
int f = (int)origin.File;
for (int r = origin.Rank + (increasingRank ? 1 : -1);
increasingRank ? r < destination.Rank : r > destination.Rank;
r += increasingRank ? 1 : -1)
{
if (game.GetPieceAt((File)f, r) != null)
{
return false;
}
}
}
else // (posDelta.DeltaY == 0)
{
int r = origin.Rank;
for (int f = (int)origin.File + (increasingFile ? 1 : -1);
increasingFile ? f < (int)destination.File : f > (int)destination.File;
f += increasingFile ? 1 : -1)
{
if (game.GetPieceAt((File)f, r) != null)
{
return false;
}
}
}
return true;
}
public override ReadOnlyCollection<Move> GetValidMoves(Position from, bool returnIfAny, ChessGame game, Func<Move, bool> gameMoveValidator)
{
List<Move> validMoves = new List<Move>();
Piece piece = game.GetPieceAt(from);
int l0 = game.BoardHeight;
int l1 = game.BoardWidth;
int[][] directions = new int[][] { new int[] { 2, 1 }, new int[] { -2, -1 }, new int[] { 1, 2 }, new int[] { -1, -2 },
new int[] { 1, -2 }, new int[] { -1, 2 }, new int[] { 2, -1 }, new int[] { -2, 1 } };
foreach (int[] dir in directions)
{
if ((int)from.File + dir[0] < 0 || (int)from.File + dir[0] >= l1
|| from.Rank + dir[1] < 1 || from.Rank + dir[1] > l0)
continue;
Move move = new Move(from, new Position(from.File + dir[0], from.Rank + dir[1]), piece.Owner);
if (gameMoveValidator(move))
{
validMoves.Add(move);
if (returnIfAny)
return new ReadOnlyCollection<Move>(validMoves);
}
}
return new ReadOnlyCollection<Move>(validMoves);
}
public override ReadOnlyCollection<Move> GetValidMoves(Position from, bool returnIfAny, ChessGame game, Func<Move, bool> gameMoveValidator)
{
ChessUtilities.ThrowIfNull(from, "from");
List<Move> validMoves = new List<Move>();
Piece piece = game.GetPieceAt(from);
int l0 = game.BoardHeight;
int l1 = game.BoardWidth;
int[][] directions;
if (piece.Owner == Player.White)
{
directions = new int[][] { new int[] { 0, 1 }, new int[] { 0, 2 }, new int[] { 1, 1 }, new int[] { -1, 1 } };
}
else
{
directions = new int[][] { new int[] { 0, -1 }, new int[] { 0, -2 }, new int[] { -1, -1 }, new int[] { 1, -1 } };
}
foreach (int[] dir in directions)
{
if ((int)from.File + dir[0] < 0 || (int)from.File + dir[0] >= l1
|| from.Rank + dir[1] < 1 || from.Rank + dir[1] > l0)
continue;
Move move = new Move(from, new Position(from.File + dir[0], from.Rank + dir[1]), piece.Owner);
List<Move> moves = new List<Move>();
if ((move.NewPosition.Rank == 8 && move.Player == Player.White) || (move.NewPosition.Rank == 1 && move.Player == Player.Black))
{
foreach (char pieceChar in ValidPromotionPieces.Where(x => char.IsUpper(x)))
{
moves.Add(new Move(move.OriginalPosition, move.NewPosition, move.Player, pieceChar));
}
}
else
{
moves.Add(move);
}
foreach (Move m in moves)
{
if (gameMoveValidator(m))
{
validMoves.Add(m);
if (returnIfAny)
return new ReadOnlyCollection<Move>(validMoves);
}
}
}
return new ReadOnlyCollection<Move>(validMoves);
}
protected void FireGameSelectionEvent(ChessGame
details)
{
if (GameSelectionEvent != null)
GameSelectionEvent (details);
}
public static void TestValidMoveBlackPawn_TwoSteps()
{
ChessGame cb = new ChessGame();
cb.ApplyMove(new Move(new Position(File.A, Rank.Two), new Position(File.A, Rank.Three), Player.White), true);
Move move1 = new Move(new Position(File.D, Rank.Seven), new Position(File.D, Rank.Five), Player.Black);
Assert.True(cb.IsValidMove(move1), "move1 should be valid");
}
public override bool IsValidMove(Move move, ChessGame game)
{
ChessUtilities.ThrowIfNull(move, "move");
ChessUtilities.ThrowIfNull(game, "game");
Position origin = move.OriginalPosition;
Position destination = move.NewPosition;
Piece promotion = null;
if (move.Promotion.HasValue && ValidPromotionPieces.Contains(move.Promotion.Value))
{
promotion = game.MapPgnCharToPiece(char.ToUpper(move.Promotion.Value), move.Player);
}
PositionDistance posDelta = new PositionDistance(origin, destination);
if ((posDelta.DistanceX != 0 || posDelta.DistanceY != 1) && (posDelta.DistanceX != 1 || posDelta.DistanceY != 1)
&& (posDelta.DistanceX != 0 || posDelta.DistanceY != 2))
return false;
if (Owner == Player.White)
{
if (origin.Rank > destination.Rank)
return false;
if (destination.Rank == 8)
{
if (promotion == null)
return false;
if (promotion.Owner != Player.White)
return false;
if (!ValidPromotionPieces.Contains(promotion.GetFenCharacter()))
return false;
}
}
if (Owner == Player.Black)
{
if (origin.Rank < destination.Rank)
return false;
if (destination.Rank == 1)
{
if (promotion == null)
return false;
if (promotion.Owner != Player.Black)
return false;
if (!ValidPromotionPieces.Contains(promotion.GetFenCharacter()))
return false;
}
}
bool checkEnPassant = false;
if (posDelta.DistanceY == 2)
{
if ((origin.Rank != 2 && Owner == Player.White)
|| (origin.Rank != 7 && Owner == Player.Black))
return false;
if (origin.Rank == 2 && game.GetPieceAt(origin.File, 3) != null)
return false;
if (origin.Rank == 7 && game.GetPieceAt(origin.File, 6) != null)
return false;
}
Piece pieceAtDestination = game.GetPieceAt(destination);
if (posDelta.DistanceX == 0 && (posDelta.DistanceY == 1 || posDelta.DistanceY == 2))
{
if (pieceAtDestination != null)
return false;
}
else
{
if (pieceAtDestination == null)
checkEnPassant = true;
else if (pieceAtDestination.Owner == Owner)
return false;
}
if (checkEnPassant)
{
ReadOnlyCollection<DetailedMove> _moves = game.Moves;
if (_moves.Count == 0)
{
return false;
}
if ((origin.Rank != 5 && Owner == Player.White)
|| (origin.Rank != 4 && Owner == Player.Black))
return false;
Move latestMove = _moves[_moves.Count - 1];
if (latestMove.Player != ChessUtilities.GetOpponentOf(Owner))
return false;
if (!(game.GetPieceAt(latestMove.NewPosition) is Pawn))
return false;
if (game.GetPieceAt(latestMove.NewPosition).Owner == Owner)
return false;
if (Owner == Player.White)
{
if (latestMove.OriginalPosition.Rank != 7 || latestMove.NewPosition.Rank != 5)
return false;
}
else // (m.Player == Players.Black)
{
if (latestMove.OriginalPosition.Rank != 2 || latestMove.NewPosition.Rank != 4)
return false;
}
if (destination.File != latestMove.NewPosition.File)
return false;
}
return true;
}
private void GameStart_Click(object sender, RoutedEventArgs e)
{
AI_Information ai_a = AI_Construct(WhiteComboBox);
AI_Information ai_b = AI_Construct(BlackComboBox);
ChessGame chessGameWindow = new ChessGame(this, ai_a, ai_b);
chessGameWindow.Show(); this.Hide();
}
public void AddGame(ChessGame game,
GameRating rating,
out PGNGameDetails updated)
{
FindOrCreateGame (game, out updated);
if (updated.Rating != rating)
{
updated.Rating = rating;
SaveGame (updated);
}
}
public void SetGame(ChessGame game)
{
this.game = game;
curMoveIdx = -1;
Refresh ();
}
public void AddGame(ChessGame game,
out PGNGameDetails updated)
{
AddGame (game, GameRating.Unknown,
out updated);
}
public void SaveGameDetails(ChessGame game,
out ChessGame updated,
bool overrite)
{
if (!(game is PGNGameDetails))
game = new PGNGameDetails (game);
PGNGameDetails updatedgame;
AddGame (game, out updatedgame); // this will check for duplicates
updated = updatedgame;
}
public bool FindOrCreateGame(ChessGame game,
out PGNGameDetails
updated)
{
PGNGameDetails info;
if (game is PGNGameDetails)
info = (PGNGameDetails) game;
else
info = new PGNGameDetails (game);
PGNGameDetails existing;
if (!FindGame (info, out existing))
{
info.ID = Config.Instance.NextID ();
db.Set (info);
Config.Instance.Save ();
updated = info;
return true; // created
}
updated = existing;
return false;
}
public static void TestInvalidMoveBlackPawn_EnPassant()
{
ChessGame cb = new ChessGame();
Move move1 = new Move(new Position(File.B, Rank.One), new Position(File.A, Rank.Three), Player.White);
Move move2 = new Move(new Position(File.E, Rank.Seven), new Position(File.E, Rank.Five), Player.Black);
Move move3 = new Move(new Position(File.E, Rank.Two), new Position(File.E, Rank.Three), Player.White);
Move move4 = new Move(new Position(File.E, Rank.Five), new Position(File.E, Rank.Four), Player.Black);
Move move5 = new Move(new Position(File.H, Rank.Two), new Position(File.H, Rank.Four), Player.White);
Move move6 = new Move(new Position(File.E, Rank.Four), new Position(File.D, Rank.Three), Player.Black);
cb.ApplyMove(move1, true);
cb.ApplyMove(move2, true);
cb.ApplyMove(move3, true);
cb.ApplyMove(move4, true);
cb.ApplyMove(move5, true);
Assert.False(cb.IsValidMove(move6));
}
public bool GetGameDetails(ChessGame game,
out ChessGame details)
{
PGNGameDetails gamedetails;
if (!(game is PGNGameDetails))
gamedetails =
new PGNGameDetails (game);
else
gamedetails = (PGNGameDetails) game;
PGNGameDetails dbgame;
bool ret = FindGame (gamedetails, out dbgame);
details = dbgame;
return ret;
}
public static void TestValidMoveBlackPawn_Capture()
{
ChessGame cb = new ChessGame();
Move move1 = new Move(new Position(File.A, Rank.Two), new Position(File.A, Rank.Three), Player.White);
Move move2 = new Move(new Position(File.E, Rank.Seven), new Position(File.E, Rank.Five), Player.Black);
Move move3 = new Move(new Position(File.D, Rank.Two), new Position(File.D, Rank.Four), Player.White);
Move move4 = new Move(new Position(File.E, Rank.Five), new Position(File.D, Rank.Four), Player.Black);
cb.ApplyMove(move1, true);
cb.ApplyMove(move2, true);
cb.ApplyMove(move3, true);
Assert.True(cb.IsValidMove(move4));
}