private static void MakeCastleMoves(Position p, List<Move> moves)
{
var player_to_move = p.PlayerToMove;
var other_player = Helper.GetOtherPlayer(player_to_move);
var my_pieces = p.GetPieces(player_to_move);
int base_row = player_to_move == Players.White ?
Chessboard.ROW_MIN : Chessboard.ROW_MAX;
if (my_pieces.KingsCell != ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_E)
|| p.IsInCheck)
{
return;
}
if (p.IsCanCastleShort(player_to_move)
&& my_pieces.IsOccupiedCell(ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_H))
&& my_pieces.IsRookAtCell(ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_H))
&& p.IsEmptyCell(ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_F))
&& p.IsEmptyCell(ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_G))
&& !PositionHelper.IsCellAttacked(
new ChessboardCell(base_row, Chessboard.COLUMN_F),
other_player, p))
{
moves.Add(new Move(Exports.Pieces.King,
ChessboardCell.CalculateValue(base_row, Chessboard.COLUMN_E),
ChessboardCell.CalculateValue(base_row, Chessboard.COLUMN_G),
0, Move.Flags.ShortCastle));
}
if (p.IsCanCastleLong(player_to_move)
&& my_pieces.IsOccupiedCell(ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_A))
&& my_pieces.IsRookAtCell(ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_A))
&& p.IsEmptyCell(ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_D))
&& p.IsEmptyCell(ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_C))
&& p.IsEmptyCell(ChessboardCell.CalculateValue(
base_row, Chessboard.COLUMN_B))
&& !PositionHelper.IsCellAttacked(
new ChessboardCell(base_row, Chessboard.COLUMN_D),
other_player, p))
{
moves.Add(new Move(Exports.Pieces.King,
ChessboardCell.CalculateValue(base_row, Chessboard.COLUMN_E),
ChessboardCell.CalculateValue(base_row, Chessboard.COLUMN_C),
0, Move.Flags.LongCastle));
}
}
