public void BeforeEachTest()
{
Piece = new Pawn();
Target = new Board();
Target.AddPiece(Piece, new BoardCoordinate(1, 1));
}
public void PerformMovement(Position origin, Position destination)
{
Piece capturedPiece = ExecuteMovement(origin, destination);
if (IsInCheck(ActualPlayer))
{
UndoMovement(origin, destination, capturedPiece);
throw new BoardException("You cannot put your own king in check.");
}
Piece piece = Board.Piece(destination);
// Special move: Promotion
if (piece is Pawn)
{
if ((piece.Color == Color.White && destination.Row == 0) || (piece.Color == Color.Black && destination.Row == 7))
{
piece = Board.RemovePiece(destination);
Pieces.Remove(piece);
Piece queen = new Queen(Board, piece.Color);
Board.AddPiece(queen, destination);
Pieces.Add(queen);
}
}
if (IsInCheck(AdversaryColor(ActualPlayer)))
{
Check = true;
}
else
{
Check = false;
}
if (TestCheckMate(AdversaryColor(ActualPlayer)))
{
EndedMatch = true;
}
else
{
Turn++;
ChangePlayer();
}
//Special move: En Passant
if (piece is Pawn && (destination.Row == origin.Row - 2 || destination.Row == origin.Row + 2))
{
VulnerableToEnPassant = piece;
}
else
{
VulnerableToEnPassant = null;
}
}
public Piece ExecuteMovement(Position origin, Position destination)
{
Piece piece = Board.RemovePiece(origin);
piece.IncreaseMovementCount();
Piece capturedPiece = Board.RemovePiece(destination);
Board.AddPiece(piece, destination);
if (capturedPiece != null)
{
Captured.Add(capturedPiece);
}
//Special move: Castling
if ((piece is King) && (destination.Column == origin.Column + 2))
{
Position originR = new Position(origin.Row, origin.Column + 3);
Position destinationR = new Position(origin.Row, origin.Column + 1);
Piece R = Board.RemovePiece(originR);
R.IncreaseMovementCount();
Board.AddPiece(R, destinationR);
}
if ((piece is King) && (destination.Column == origin.Column - 2))
{
Position originR = new Position(origin.Row, origin.Column - 4);
Position destinationR = new Position(origin.Row, origin.Column - 1);
Piece R = Board.RemovePiece(originR);
R.IncreaseMovementCount();
Board.AddPiece(R, destinationR);
}
//Special move: En Passant
if (piece is Pawn)
{
if ((origin.Column != destination.Column) && (capturedPiece == null))
{
Position positionP;
if (piece.Color == Color.White)
{
positionP = new Position(destination.Row + 1, destination.Column);
}
else
{
positionP = new Position(destination.Row - 1, destination.Column);
}
capturedPiece = Board.RemovePiece(positionP);
Captured.Add(capturedPiece);
}
}
return(capturedPiece);
}
public void AddPiece(BoardCoordinate square, string pieceString)
{
VerifyNonEmptyPieceStringOrThrow(pieceString);
var pieceCode = pieceString.Substring(1);
var playerCode = pieceString[0];
var isFirstPlayer = DetermineIsFirstPlayer(playerCode);
var pieceToAdd = BuildPiece(pieceCode, isFirstPlayer);
_board.AddPiece(pieceToAdd, square);
}
private void UndoMovement(Position origin, Position destination, Piece capturedPiece)
{
Piece piece = Board.RemovePiece(destination);
piece.DecreaseMovementCount();
if (capturedPiece != null)
{
Board.AddPiece(capturedPiece, destination);
Captured.Remove(capturedPiece);
}
Board.AddPiece(piece, origin);
//Special move: Castling
if ((piece is King) && (destination.Column == origin.Column + 2))
{
Position originR = new Position(origin.Row, origin.Column + 3);
Position destinationR = new Position(origin.Row, origin.Column + 1);
Piece R = Board.RemovePiece(destinationR);
R.DecreaseMovementCount();
Board.AddPiece(R, originR);
}
if ((piece is King) && (destination.Column == origin.Column - 2))
{
Position originR = new Position(origin.Row, origin.Column - 4);
Position destinationR = new Position(origin.Row, origin.Column - 1);
Piece R = Board.RemovePiece(destinationR);
R.DecreaseMovementCount();
Board.AddPiece(R, originR);
}
//Special move: En Passant
if (piece is Pawn)
{
if ((origin.Column != destination.Column) && (capturedPiece == VulnerableToEnPassant))
{
Piece pawn = Board.RemovePiece(destination);
Position positionP;
if (piece.Color == Color.White)
{
positionP = new Position(3, destination.Column);
}
else
{
positionP = new Position(4, destination.Column);
}
Board.AddPiece(pawn, positionP);
}
}
}
public Player(Team team, Board board)
{
Team = team;
this.board = board;
king = new King(Team);
board.AddPiece(king);
board.AddPiece(new Queen(Team));
board.AddPiece(new Rook(0, team));
board.AddPiece(new Rook(7, team));
board.AddPiece(new Knight(1, team));
board.AddPiece(new Knight(6, team));
board.AddPiece(new Bishop(2, team));
board.AddPiece(new Bishop(5, team));
for (int i = 0; i < 8; i++)
{
board.AddPiece(new Pawn(i, team));
}
}
public bool MovePiece(Point from, Point to)
{
if (board.IsEmpty(from))
{
return(false);
}
if (king.IsEnemy(board[from]))
{
return(false);
}
Piece piece = board.PopPiece(from);
if (IsCheck())
{
board.AddPiece(piece);
return(false);
}
return(board.MovePiece(from, to));
}
public void AddNewPiece(char column, int row, Piece piece)
{
Board.AddPiece(piece, new ChessPosition(column, row).ToPosition());
Pieces.Add(piece);
}