private void HandleKingsideCastling(Square origin, Square destination) { var kingsideRookSquare = GetKingsideRookSquare(origin); if (!destination.DistanceOfFilesIsOneTo(kingsideRookSquare)) return; if (origin.Color != kingsideRookSquare.Color) return; if (origin.DistanceOfFilesIsNotTwoTo(destination)) return; if (!(kingsideRookSquare.Occupier is Rook)) return; Board.SetSquare(kingsideRookSquare.File, kingsideRookSquare.Rank, new NullPiece(Board)); Board.SetSquare(origin.File + 1, origin.Rank, kingsideRookSquare.Occupier); }
private void HandleQueensideCastling(Square origin, Square destination) { var queensideRookSquare = GetQueensideRookSquare(origin); if (!destination.DistanceOfFilesIsTwoTo(queensideRookSquare)) return; if (origin.Color != queensideRookSquare.Color) return; if (origin.DistanceOfFilesIsNotTwoTo(destination)) return; if (!(queensideRookSquare.Occupier is Rook)) return; Board.SetSquare(queensideRookSquare.File, queensideRookSquare.Rank, new NullPiece(Board)); Board.SetSquare(origin.File - 1, queensideRookSquare.Rank, queensideRookSquare.Occupier); }