public Piece PerformMovement(Position origin, Position destination)
{
Piece piece = Board.RemovePiece(origin);
Piece capturedPiece = Board.RemovePiece(destination);
Board.PlacePiece(piece, destination);
piece.MovesAmountIncrease();
if (capturedPiece != null)
{
captured.Add(capturedPiece);
}
//#Short Castling
if (piece is King && destination.Column == origin.Column + 2)
{
Position rOrigin = new Position(origin.Line, origin.Column + 3);
Position rDestination = new Position(origin.Line, origin.Column + 1);
Piece R = Board.RemovePiece(rOrigin);
R.MovesAmountIncrease();
Board.PlacePiece(R, rDestination);
}
//#Long Castling
if (piece is King && destination.Column == origin.Column - 2)
{
Position rOrigin = new Position(origin.Line, origin.Column - 4);
Position rDestination = new Position(origin.Line, origin.Column - 1);
Piece R = Board.RemovePiece(rOrigin);
R.MovesAmountIncrease();
Board.PlacePiece(R, rDestination);
}
//enPassant
if (piece is Pawn)
{
if (origin.Column != destination.Column && capturedPiece == null)
{
Position pawnP;
if (piece.Color == Color.White)
{
pawnP = new Position(destination.Line + 1, destination.Column);
}
else
{
pawnP = new Position(destination.Line - 1, destination.Column);
}
capturedPiece = Board.RemovePiece(pawnP);
captured.Add(capturedPiece);
}
}
return(capturedPiece);
}
public void UndoMovement(Position origin, Position destination, Piece capturedPiece)
{
Piece piece = Board.RemovePiece(destination);
if (capturedPiece != null)
{
Board.PlacePiece(capturedPiece, destination);
captured.Remove(capturedPiece);
}
Board.PlacePiece(piece, origin);
piece.MovesAmountDecrease();
//#Short Castling
if (piece is King && destination.Column == origin.Column + 2)
{
Position rOrigin = new Position(origin.Line, origin.Column + 3);
Position rDestination = new Position(origin.Line, origin.Column + 1);
Piece R = Board.RemovePiece(rDestination);
R.MovesAmountIncrease();
Board.PlacePiece(R, rOrigin);
}
//#Long Castling
if (piece is King && destination.Column == origin.Column - 2)
{
Position rOrigin = new Position(origin.Line, origin.Column - 4);
Position rDestination = new Position(origin.Line, origin.Column - 1);
Piece R = Board.RemovePiece(rDestination);
R.MovesAmountIncrease();
Board.PlacePiece(R, rOrigin);
}
if (piece is Pawn)
{
if (origin.Column != destination.Column && capturedPiece == EnPassantVul)
{
Piece pawn = Board.RemovePiece(destination);
Position pawnP;
if (piece.Color == Color.White)
{
pawnP = new Position(3, destination.Column);
}
else
{
pawnP = new Position(4, destination.Column);
}
Board.PlacePiece(pawn, pawnP);
}
}
}