private void UndoMove(Position origin, Position destination, Piece capturedPiece)
{
Piece p = Board.RemovePiece(destination);
p.DecreaseNumberOfMoves();
if (capturedPiece != null)
{
Board.PutPiece(capturedPiece, destination);
Captured.Remove(capturedPiece);
}
Board.PutPiece(p, origin);
//Special Move: Castling - King Side
if (p is King && destination.Column == origin.Column + 2)
{
Position towerOrigin = new Position(origin.Row, origin.Column + 3);
Position towerDestination = new Position(origin.Row, origin.Column + 1);
Piece tower = Board.RemovePiece(towerOrigin);
tower.DecreaseNumberOfMoves();
Board.PutPiece(tower, towerDestination);
}
//Special Move: Castling - Queen Side
if (p is King && destination.Column == origin.Column - 2)
{
Position towerOrigin = new Position(origin.Row, origin.Column - 4);
Position towerDestination = new Position(origin.Row, origin.Column - 1);
Piece tower = Board.RemovePiece(towerOrigin);
tower.DecreaseNumberOfMoves();
Board.PutPiece(tower, towerDestination);
}
}
