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);
}
}
}
