public static List <ChessBoard> GetPossiblePositions(ChessBoard board, char file, sbyte rank)
{
List <ChessBoard> result = new List <ChessBoard>();
ChessBoard tempboard;
Square current = new Square(file, rank);
Square[] moves = Piece.GetSimpleKingMoveDestinations(current);
foreach (Square move in moves)
{
if (move.IsOK() && board[move] >= 0)
{
tempboard = Piece.PerformMove(board, current, move);
result = Piece.AddNewPosition(result, tempboard, false);
}
}
GetQueenCastlingPosition(board, file, rank, result, current);
GetKingCastlingPosition(board, file, rank, result, current);
return(result);
}
public static List <Square> GetPossibleBlackAttackersToSquare(ChessBoard board, Square goalsquare)
{
List <Square> result = new List <Square>();
char file = goalsquare.file; int rank = goalsquare.rank;
//check for Pawn
if (file >= 'a' && file <= 'g' && rank <= 7 && board[(char)(file + 1), rank + 1] == (sbyte)DefaultPieces.BlackPawn)
{
result.Add(new Square((char)(file + 1), rank + 1));
}
if (file >= 'b' && file <= 'h' && rank <= 7 && board[(char)(file - 1), rank + 1] == (sbyte)DefaultPieces.BlackPawn)
{
result.Add(new Square((char)(file - 1), rank + 1));
}
Square[] moves_array = Piece.GetSimplekNightMoveDestinations(goalsquare);
foreach (Square move in moves_array)
{
if (move.IsOK() && board[move] == (sbyte)DefaultPieces.BlackkNight)
{
result.Add(move);
}
}
GetVerticalUpBlackAttackers(board, result, file, rank);
GetVerticalDownBlackAttackers(board, result, file, rank);
GetHorizontalRightBlackAttacker(board, result, file, rank);
GetHorizontalLeftBlackAttackers(board, result, file, rank);
GetDiagonalBlackAttackers(board, result, goalsquare, 1, 1);
GetDiagonalBlackAttackers(board, result, goalsquare, 1, -1);
GetDiagonalBlackAttackers(board, result, goalsquare, -1, 1);
GetDiagonalBlackAttackers(board, result, goalsquare, -1, -1);
Square[] moves = Piece.GetSimpleKingMoveDestinations(goalsquare);
foreach (Square move in moves)
{
if (move.IsOK() && board[move] == (sbyte)DefaultPieces.BlackKing)
{
result.Add(move); break;
}
}
return(result);
}
