public void UndoMovement(Position origin, Position destination, Piece capturedPiece)
{
Piece p = Gameboard.RemovePiece(destination);
p.DecrementMovementsQty();
if (capturedPiece != null)
{
Gameboard.PlacePiece(capturedPiece, destination);
captures.Remove(capturedPiece);
}
Gameboard.PlacePiece(p, origin);
// Special Movement Castling Short
if (p is King && destination.Column == origin.Column + 2)
{
Position originT = new Position(origin.Row, origin.Column + 3);
Position destinationT = new Position(origin.Row, origin.Column + 1);
Piece T = Gameboard.RemovePiece(destinationT);
T.DecrementMovementsQty();
Gameboard.PlacePiece(T, originT);
}
// Special Movement Castling Long
if (p is King && destination.Column == origin.Column - 2)
{
Position originT = new Position(origin.Row, origin.Column - 4);
Position destinationT = new Position(origin.Row, origin.Column - 1);
Piece T = Gameboard.RemovePiece(destinationT);
T.DecrementMovementsQty();
Gameboard.PlacePiece(T, originT);
}
// Special Movement En passant
if (p is Pawn)
{
if (origin.Column != destination.Column && capturedPiece == enPassantVulnerable)
{
Piece pawn = Gameboard.RemovePiece(destination);
Position posP;
if (p.Color == Color.White)
{
posP = new Position(3, destination.Column);
}
else
{
posP = new Position(4, destination.Column);
}
Gameboard.PlacePiece(pawn, posP);
}
}
}
