private static void GetKingCastlingPosition(ChessBoard board, char file, sbyte rank, List <ChessBoard> result, Square current)
{
ChessBoard tempboard;
if (WhiteKing.IsSafe(board) && DefaultInfo.WhiteKingIsUnMoved && DefaultInfo.WhiteHsideRookIsUnMoved)
{
char rookfile = 'h';
for (char tfile = file; tfile < 'h'; tfile++)
{
if (board[tfile, rank] == (sbyte)DefaultPieces.WhiteRook)
{
rookfile = tfile;
}
}
tempboard = board.ShallowCopy();
bool CastlingAvailable = true;
for (char tfile = file; tfile <= 'g'; tfile++)
{
if (board[tfile, rank] != 0 && board[tfile, rank] != (sbyte)DefaultPieces.WhiteKing && board[tfile, rank] != (sbyte)DefaultPieces.WhiteRook)
{
CastlingAvailable = false;
break;
}
}
for (char tfile = rookfile; tfile >= 'f'; tfile--)
{
if (board[tfile, rank] != 0 && board[tfile, rank] != (sbyte)DefaultPieces.WhiteKing && board[tfile, rank] != (sbyte)DefaultPieces.WhiteRook)
{
CastlingAvailable = false;
break;
}
}
for (char tfile = rookfile; tfile <= 'f'; tfile++)
{
if (board[tfile, rank] != 0 && board[tfile, rank] != (sbyte)DefaultPieces.WhiteKing && board[tfile, rank] != (sbyte)DefaultPieces.WhiteRook)
{
CastlingAvailable = false;
break;
}
}
for (char tfile = file; tfile <= 'g'; tfile++)
{
ChessBoard temp2board = board.ShallowCopy();
temp2board[file, rank] = 0;
temp2board[tfile, rank] = (sbyte)DefaultPieces.WhiteKing;
if (!WhiteKing.IsSafe(temp2board))
{
CastlingAvailable = false;
break;
}
}
if (CastlingAvailable)
{
tempboard = Piece.PerformMove(board, current, new Square('g', rank));
tempboard = Piece.PerformMove(tempboard, new Square(rookfile, rank), new Square('f', rank));
result.Add(tempboard);
}
}
}
public static bool IsSafe(ChessBoard board)
{
ChessBoard tempboard = board.ShallowCopy();
tempboard.ReverseSides();
return(WhiteKing.IsSafe(tempboard));
}
// Code Review: Назваргументів методу повинні починатися з малої літери.
public static List <ChessBoard> AddNewPosition(List <ChessBoard> ResultedPositionsList, ChessBoard position, bool IsWhite)
{
if (IsWhite && WhiteKing.IsSafe(position))
{
ResultedPositionsList.Add(position);
}
else if (!IsWhite && BlackKing.IsSafe(position))
{
ResultedPositionsList.Add(position);
}
return(ResultedPositionsList);
}