public void PlayNow(Position origin, Position destination)
{
Piece capturedPiece = PerformMovement(origin, destination);
if (InCheck(NowPlaying))
{
UndoMovement(origin, destination, capturedPiece);
throw new BoardException("You can't put yourself in Check condition");
}
Piece p = Board.Piece(destination);
//promotion
if (p is Pawn)
{
if ((p.Color == Color.White && destination.Line == 0) || (p.Color == Color.Black && destination.Line == 7))
{
p = Board.RemovePiece(destination);
pieces.Remove(p);
Piece queen = new Queen(Board, p.Color);
Board.PlacePiece(queen, destination);
pieces.Add(queen);
}
}
if (InCheck(Opponent(NowPlaying)))
{
Check = true;
}
else
{
Check = false;
}
if (InCheckMate(Opponent(NowPlaying)))
{
GameOver = true;
}
else
{
if (NowPlaying == Color.Black)
{
Turn++;
}
ChangePlayer();
}
//enPassant
if (p is Pawn && destination.Line == origin.Line - 2 || destination.Line == origin.Line + 2)
{
EnPassantVul = p;
}
else
{
EnPassantVul = null;
}
}
public Piece Move(Position source, Position target)
{
Piece p = Board.RemovePiece(source);
p.IncreaseMove();
Piece capturedPiece = Board.RemovePiece(target);
Board.PlacePiece(p, target);
if (capturedPiece != null)
{
CapturedPieces.Add(capturedPiece);
}
// #specialMove kingside Castling
if (p is King && target.Column == source.Column + 2)
{
Position sourceR = new Position(source.Row, source.Column + 3);
Position targetR = new Position(source.Row, source.Column + 1);
Piece R = Board.RemovePiece(sourceR);
R.IncreaseMove();
Board.PlacePiece(R, targetR);
}
// #specialMove queenside Castling
if (p is King && target.Column == source.Column - 2)
{
Position sourceR = new Position(source.Row, source.Column - 4);
Position targetR = new Position(source.Row, source.Column - 1);
Piece R = Board.RemovePiece(sourceR);
R.IncreaseMove();
Board.PlacePiece(R, targetR);
}
// #specialMove EnPassant
{
if (p is Pawn && source.Column != target.Column && capturedPiece == null)
{
Position posP;
if (p.Color == Color.White)
{
posP = new Position(target.Row + 1, target.Column);
}
else
{
posP = new Position(target.Row - 1, target.Column);
}
capturedPiece = Board.RemovePiece(posP);
CapturedPieces.Add(capturedPiece);
}
}
return(capturedPiece);
}
private Piece MakeMove(Position source, Position target)
{
ChessPiece sourcePiece = (ChessPiece)Board.RemovePiece(source);
sourcePiece.IncreaseMoveCount();
Piece capturedPiece = Board.RemovePiece(target);
Board.PlacePiece(sourcePiece, target);
if (capturedPiece != null)
{
PiecesOnTheBoard.Remove(capturedPiece);
CapturedPieces.Add(capturedPiece);
}
//SpecialMove Castling KingSide Rook
if (sourcePiece is King && target.Column == source.Column + 2)
{
Position sourceRook = new Position(source.Row, source.Column + 3);
Position targetRook = new Position(source.Row, source.Column + 1);
ChessPiece rook = (ChessPiece)Board.RemovePiece(sourceRook);
Board.PlacePiece(rook, targetRook);
rook.IncreaseMoveCount();
}
//SpecialMove Castling QueenSide Rook
if (sourcePiece is King && target.Column == source.Column - 2)
{
Position sourceRook = new Position(source.Row, source.Column - 4);
Position targetRook = new Position(source.Row, source.Column - 1);
ChessPiece rook = (ChessPiece)Board.RemovePiece(sourceRook);
Board.PlacePiece(rook, targetRook);
rook.IncreaseMoveCount();
}
//SpecialMove EnPassant
if (sourcePiece is Pawn)
{
if (source.Column != target.Column && capturedPiece == null)
{
Position pawnPosition;
if (sourcePiece.Color == Color.White)
{
pawnPosition = new Position(target.Row + 1, target.Column);
}
else
{
pawnPosition = new Position(target.Row - 1, target.Column);
}
capturedPiece = Board.RemovePiece(pawnPosition);
CapturedPieces.Add(capturedPiece);
PiecesOnTheBoard.Remove(capturedPiece);
}
}
return(capturedPiece);
}
public Piece PerformMovement(Position origin, Position destination)
{
Piece piece = Board.RemovePiece(origin);
Piece capturedPiece = Board.RemovePiece(destination);
Board.PlacePiece(piece, destination);
piece.MovesAmountIncrease();
if (capturedPiece != null)
{
captured.Add(capturedPiece);
}
//#Short Castling
if (piece is King && destination.Column == origin.Column + 2)
{
Position rOrigin = new Position(origin.Line, origin.Column + 3);
Position rDestination = new Position(origin.Line, origin.Column + 1);
Piece R = Board.RemovePiece(rOrigin);
R.MovesAmountIncrease();
Board.PlacePiece(R, rDestination);
}
//#Long Castling
if (piece is King && destination.Column == origin.Column - 2)
{
Position rOrigin = new Position(origin.Line, origin.Column - 4);
Position rDestination = new Position(origin.Line, origin.Column - 1);
Piece R = Board.RemovePiece(rOrigin);
R.MovesAmountIncrease();
Board.PlacePiece(R, rDestination);
}
//enPassant
if (piece is Pawn)
{
if (origin.Column != destination.Column && capturedPiece == null)
{
Position pawnP;
if (piece.Color == Color.White)
{
pawnP = new Position(destination.Line + 1, destination.Column);
}
else
{
pawnP = new Position(destination.Line - 1, destination.Column);
}
capturedPiece = Board.RemovePiece(pawnP);
captured.Add(capturedPiece);
}
}
return(capturedPiece);
}
public void Play(Position source, Position target)
{
Piece capturedPiece = Move(source, target);
if (IsCheck(CurrentPlayer))
{
UndoMove(source, target, capturedPiece);
throw new BoardException("You cannot move yourself into check");
}
Piece p = Board.Piece(target);
// #specialMove Promotion
if (p is Pawn)
{
if ((p.Color == Color.White && target.Row == 0) || (p.Color == Color.Black && target.Row == 7))
{
p = Board.RemovePiece(target);
Pieces.Remove(p);
Piece queen = new Queen(Board, p.Color);
Board.PlacePiece(queen, target);
Pieces.Add(queen);
}
}
if (IsCheck(Opponent(CurrentPlayer)))
{
Check = true;
}
else
{
Check = false;
};
if (IsCheckmate(Opponent(CurrentPlayer)))
{
GameOver = true;
}
else
{
Turn++;
ChangePlayer();
};
// #specialMove EnPassant
if (p is Pawn && (target.Row == source.Row - 2 || target.Row == source.Row + 2))
{
EnPassantVulnerable = p;
}
else
{
EnPassantVulnerable = null;
}
}
public void UndoMove(Position source, Position target, Piece capturedPiece)
{
Piece p = Board.RemovePiece(target);
p.DecreaseMove();
if (capturedPiece != null)
{
Board.PlacePiece(capturedPiece, target);
CapturedPieces.Remove(capturedPiece);
}
Board.PlacePiece(p, source);
// #specialMove kingside Castling
if (p is King && target.Column == source.Column + 2)
{
Position sourceR = new Position(source.Row, source.Column + 3);
Position targetR = new Position(source.Row, source.Column + 1);
Piece R = Board.RemovePiece(targetR);
R.DecreaseMove();
Board.PlacePiece(R, sourceR);
}
// #specialMove queenside Castling
if (p is King && target.Column == source.Column - 2)
{
Position sourceR = new Position(source.Row, source.Column - 4);
Position targetR = new Position(source.Row, source.Column - 1);
Piece R = Board.RemovePiece(targetR);
R.DecreaseMove();
Board.PlacePiece(R, sourceR);
}
// #specialMove EnPassant
{
if (p is Pawn && source.Column != target.Column && capturedPiece == EnPassantVulnerable)
{
Piece pawn = Board.RemovePiece(target);
Position posP;
if (p.Color == Color.White)
{
posP = new Position(3, target.Column);
}
else
{
posP = new Position(4, target.Column);
}
Board.PlacePiece(pawn, posP);
//CapturedPieces.Remove(capturedPiece);
}
}
}
private void UndoMove(Position source, Position target, Piece capturedPiece)
{
ChessPiece p = (ChessPiece)Board.RemovePiece(target);
p.DecreaseMoveCount();
Board.PlacePiece(p, source);
if (capturedPiece != null)
{
Board.PlacePiece(capturedPiece, target);
CapturedPieces.Remove(capturedPiece);
PiecesOnTheBoard.Add(capturedPiece);
}
//SpecialMove Castling KingSide Rook
if (p is King && target.Column == source.Column + 2)
{
Position sourceRook = new Position(source.Row, source.Column + 3);
Position targetRook = new Position(source.Row, source.Column + 1);
ChessPiece rook = (ChessPiece)Board.RemovePiece(targetRook);
Board.PlacePiece(rook, sourceRook);
rook.DecreaseMoveCount();
}
//SpecialMove Castling QueenSide Rook
if (p is King && target.Column == source.Column - 2)
{
Position sourceRook = new Position(source.Row, source.Column - 4);
Position targetRook = new Position(source.Row, source.Column - 1);
ChessPiece rook = (ChessPiece)Board.RemovePiece(targetRook);
Board.PlacePiece(rook, sourceRook);
rook.DecreaseMoveCount();
}
//SpecialMove EnPassant
if (p is Pawn)
{
if (source.Column != target.Column && capturedPiece == EnPassantVulnerable)
{
ChessPiece pawn = (ChessPiece)Board.RemovePiece(target);
Position pawnPosition;
if (p.Color == Color.White)
{
pawnPosition = new Position(3, target.Column);
}
else
{
pawnPosition = new Position(3, target.Column);
}
Board.PlacePiece(pawn, pawnPosition);
}
}
}
public void UndoMovement(Position origin, Position destination, Piece capturedPiece)
{
Piece piece = Board.RemovePiece(destination);
if (capturedPiece != null)
{
Board.PlacePiece(capturedPiece, destination);
captured.Remove(capturedPiece);
}
Board.PlacePiece(piece, origin);
piece.MovesAmountDecrease();
//#Short Castling
if (piece is King && destination.Column == origin.Column + 2)
{
Position rOrigin = new Position(origin.Line, origin.Column + 3);
Position rDestination = new Position(origin.Line, origin.Column + 1);
Piece R = Board.RemovePiece(rDestination);
R.MovesAmountIncrease();
Board.PlacePiece(R, rOrigin);
}
//#Long Castling
if (piece is King && destination.Column == origin.Column - 2)
{
Position rOrigin = new Position(origin.Line, origin.Column - 4);
Position rDestination = new Position(origin.Line, origin.Column - 1);
Piece R = Board.RemovePiece(rDestination);
R.MovesAmountIncrease();
Board.PlacePiece(R, rOrigin);
}
if (piece is Pawn)
{
if (origin.Column != destination.Column && capturedPiece == EnPassantVul)
{
Piece pawn = Board.RemovePiece(destination);
Position pawnP;
if (piece.Color == Color.White)
{
pawnP = new Position(3, destination.Column);
}
else
{
pawnP = new Position(4, destination.Column);
}
Board.PlacePiece(pawn, pawnP);
}
}
}
public ChessPiece ReplacePromotedPiece(String type)
{
if (Promoted == null)
{
throw new ApplicationException("There is no piece to be promoted.\n");
}
if (!type.Equals("B") && !type.Equals("N") && !type.Equals("R") && !type.Equals("Q"))
{
return(Promoted);
}
Position promotedPosition = Promoted.GetChessPosition().ToPosition();
Piece promoted = Board.RemovePiece(promotedPosition);
PiecesOnTheBoard.Remove(promoted);
ChessPiece newPiece = NewPiece(type, Promoted.Color);
Board.PlacePiece(newPiece, promotedPosition);
PiecesOnTheBoard.Add(newPiece);
return(newPiece);
}
public void PlaceNewPiece(char column, int line, Piece piece)
{
Board.PlacePiece(piece, new ChessPosition(column, line).ToPosition());
pieces.Add(piece);
}
public void PlaceNewPiece(char column, int row, Piece piece)
{
Board.PlacePiece(piece, new ChessPosition(column, row).ToPosition());
Pieces.Add(piece);
}
private void PlaceNewPiece(char column, int row, ChessPiece piece)
{
Board.PlacePiece(piece, new ChessPosition(column, row).ToPosition());
PiecesOnTheBoard.Add(piece);
}