public int columnIndex(Piece piece)
{
PieceType type = piece.getPieceType();
Sides color = piece.getSide();
int index = 0;
if (color == Sides.BLACK)
{
index += 6;
}
if (type == PieceType.KING)
{
return(0 + index);
}
else if (type == PieceType.QUEEN)
{
return(1 + index);
}
else if (type == PieceType.ROOK)
{
return(2 + index);
}
else if (type == PieceType.BISHOP)
{
return(3 + index);
}
else if (type == PieceType.KNIGHT)
{
return(4 + index);
}
return(5 + index);
}
public override bool Equals(object obj)
{
if (this == obj)
{
return(true);
}
if (!(obj is Piece))
{
return(false);
}
Piece otherPiece = obj as Piece;
return(this.piecePosition == otherPiece.getPiecePosition() &&
this.pieceSide == otherPiece.getSide() &&
this.type == otherPiece.getPieceType() &&
this.isFirstMove() == otherPiece.isFirstMove());
}
public override List <Move> getLegalMoves(Board board)
{
List <Move> legalMoves = new List <Move>();
foreach (int argument in legalMoveArguments)
{
int unCheckedPosition = this.piecePosition + (this.direction * argument);
if (!BoardUtils.checkedForLegalPosition(unCheckedPosition))
{
continue;
}
if (argument == 8 && !board.getCell(unCheckedPosition).isCellOccupied())
{
if (this.isPromotionSquare(unCheckedPosition))
{
legalMoves.Add(new PawnPromotionMove(new NormalMove(board, this, unCheckedPosition), this.getPromotionPiece(PieceType.ROOK)));
legalMoves.Add(new PawnPromotionMove(new NormalMove(board, this, unCheckedPosition), this.getPromotionPiece(PieceType.KNIGHT)));
legalMoves.Add(new PawnPromotionMove(new NormalMove(board, this, unCheckedPosition), this.getPromotionPiece(PieceType.BISHOP)));
legalMoves.Add(new PawnPromotionMove(new NormalMove(board, this, unCheckedPosition), this.getPromotionPiece()));
}
else
{
legalMoves.Add(new PawnMove(board, this, unCheckedPosition));
}
}
if (argument == 16 && this.isFirstMove() &&
(this.piecePosition / 8 == 1 && this.isBlack() ||
this.piecePosition / 8 == 6 && this.isWhite()))
{
int behindPosition = this.piecePosition + (this.direction * 8);
if (!board.getCell(unCheckedPosition).isCellOccupied() &&
!board.getCell(behindPosition).isCellOccupied())
{
legalMoves.Add(new PawnJump(board, this, unCheckedPosition));
}
}
if (argument == 9 &&
!((this.piecePosition % 8 == 7 && this.isBlack() ||
(this.piecePosition % 8 == 0 && this.isWhite()))))
{
if (board.getCell(unCheckedPosition).isCellOccupied())
{
Piece occupiedPiece = board.getCell(unCheckedPosition).getPiece();
if (occupiedPiece.getSide() != this.getSide())
{
if (this.isPromotionSquare(unCheckedPosition))
{
legalMoves.Add(new PawnPromotionMove(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece), this.getPromotionPiece(PieceType.ROOK)));
legalMoves.Add(new PawnPromotionMove(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece), this.getPromotionPiece(PieceType.KNIGHT)));
legalMoves.Add(new PawnPromotionMove(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece), this.getPromotionPiece(PieceType.BISHOP)));
legalMoves.Add(new PawnPromotionMove(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece), this.getPromotionPiece()));
}
else
{
legalMoves.Add(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece));
}
}
}
else if (board.getEnPassantPawn() != null)
{
if (board.getEnPassantPawn().getPiecePosition() == this.piecePosition - (this.direction * -1))
{
Piece enPassantPiece = board.getEnPassantPawn();
if (this.getSide() != enPassantPiece.getSide())
{
legalMoves.Add(new PawnEnPassantAttackMove(board, this, unCheckedPosition, enPassantPiece));
}
}
}
}
if (argument == 7 &&
!((this.piecePosition % 8 == 0 && this.isBlack() ||
(this.piecePosition % 8 == 7 && this.isWhite()))))
{
if (board.getCell(unCheckedPosition).isCellOccupied())
{
Piece occupiedPiece = board.getCell(unCheckedPosition).getPiece();
if (occupiedPiece.getSide() != this.getSide())
{
if (this.isPromotionSquare(unCheckedPosition))
{
legalMoves.Add(new PawnPromotionMove(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece), this.getPromotionPiece(PieceType.ROOK)));
legalMoves.Add(new PawnPromotionMove(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece), this.getPromotionPiece(PieceType.KNIGHT)));
legalMoves.Add(new PawnPromotionMove(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece), this.getPromotionPiece(PieceType.BISHOP)));
legalMoves.Add(new PawnPromotionMove(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece), this.getPromotionPiece()));
}
else
{
legalMoves.Add(new PawnAttackMove(board, this, unCheckedPosition, occupiedPiece));
}
}
}
else if (board.getEnPassantPawn() != null)
{
if (board.getEnPassantPawn().getPiecePosition() == this.piecePosition + (this.direction * -1))
{
Piece enPassantPiece = board.getEnPassantPawn();
if (this.getSide() != enPassantPiece.getSide())
{
legalMoves.Add(new PawnEnPassantAttackMove(board, this, unCheckedPosition, enPassantPiece));
}
}
}
}
}
return(legalMoves);
}
