public void UndoMovement(Position origin, Position destination, Piece capturedPiece)
{
Piece piece = Board.removePieceFromPosition(destination);
piece.DecrementMovementQuantity();
if (capturedPiece != null)
{
Board.SetPieceInPosition(capturedPiece, destination);
capturedPieces.Remove(capturedPiece);
}
Board.SetPieceInPosition(piece, origin);
// #Castle Kingside
if (piece is King && destination.Column == origin.Column + 2)
{
Position originT = new Position(origin.Line, origin.Column + 3);
Position destinationT = new Position(origin.Line, origin.Column + 1);
Piece T = Board.removePieceFromPosition(destinationT);
T.DecrementMovementQuantity();
Board.SetPieceInPosition(T, originT);
}
// #Castle Queenside
if (piece is King && destination.Column == origin.Column - 2)
{
Position originT = new Position(origin.Line, origin.Column - 4);
Position destinationT = new Position(origin.Line, origin.Column - 1);
Piece T = Board.removePieceFromPosition(destinationT);
T.DecrementMovementQuantity();
Board.SetPieceInPosition(T, originT);
}
// #en passant
if (piece is Pawn)
{
if (origin.Column != destination.Column && capturedPiece == VulnerableEnPassant)
{
Piece pawn = Board.removePieceFromPosition(destination);
Position posP;
if (piece.Color == Color.White)
{
posP = new Position(3, destination.Column);
}
else
{
posP = new Position(4, destination.Column);
}
Board.SetPieceInPosition(pawn, posP);
}
}
}