private static void GetEnPassantPositions(ref List <ChessBoard> result, ChessBoard board, Square currentposition)
{
ChessBoard tempboard = board.ShallowCopy();
bool CheckEnPassant = DefaultInfo.EnPassantPossibleCapture.rank == currentposition.rank - 1 && (DefaultInfo.EnPassantPossibleCapture.file == (char)(currentposition.file + 1) || DefaultInfo.EnPassantPossibleCapture.file == (char)(currentposition.file - 1));
if (CheckEnPassant)
{
tempboard = Piece.PerformMove(board, currentposition, DefaultInfo.EnPassantPossibleCapture);
tempboard[DefaultInfo.EnPassantPossibleCapture.file, DefaultInfo.EnPassantPossibleCapture.rank + 1] = 0;
result = Piece.AddNewPosition(result, tempboard, false);
}
}
public static List <ChessBoard> GetPossiblePositions(ChessBoard board, char file, sbyte rank)
{
List <ChessBoard> result = new List <ChessBoard>();
ChessBoard tempboard;
List <Square> moves = new List <Square>();
Square current = new Square(file, rank);
WhitePiece.GetDiagonalDestinations(board, ref moves, current, 1, 1);
WhitePiece.GetDiagonalDestinations(board, ref moves, current, 1, -1);
WhitePiece.GetDiagonalDestinations(board, ref moves, current, -1, 1);
WhitePiece.GetDiagonalDestinations(board, ref moves, current, -1, -1);
foreach (Square move in moves)
{
tempboard = Piece.PerformMove(board, current, move);
result = Piece.AddNewPosition(result, tempboard, true);
}
return(result);
}
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 <ChessBoard> GetPossiblePositions(ChessBoard board, char file, sbyte rank)
{
List <ChessBoard> result = new List <ChessBoard>();
ChessBoard tempboard;
List <Square> moves = new List <Square>();
Square current = new Square(file, rank);
WhitePiece.GetVerticalUpDestinations(board, moves, current);
WhitePiece.GetVerticalDownDestinations(board, moves, current);
WhitePiece.GetHorizontalLeftDestinations(board, moves, current);
WhitePiece.GetHorizontalRightDestinations(board, moves, current);
Console.WriteLine(moves.Count);
foreach (Square move in moves)
{
tempboard = Piece.PerformMove(board, current, move);
result = Piece.AddNewPosition(result, tempboard, true);
}
Console.WriteLine(result.Count);
return(result);
}
public static List <ChessBoard> GetPossiblePositions(ChessBoard board, char file, sbyte rank)
{
List <ChessBoard> result = new List <ChessBoard>();
Square current = new Square(file, rank);
Square[] moves = Piece.GetSimplekNightMoveDestinations(current);
ChessBoard tempboard;
foreach (Square move in moves)
{
if (move.IsOK())
{
if (board[move] <= 0)
{
tempboard = Piece.PerformMove(board, current, move);
result = Piece.AddNewPosition(result, tempboard, true);
}
}
}
return(result);
}
public static List <ChessBoard> GetPossiblePositions(ChessBoard board, char file, sbyte rank)
{
List <ChessBoard> result = new List <ChessBoard>();
ChessBoard tempboard = board.ShallowCopy();
Square currentposition = new Square(file, rank);
if (DefaultInfo.WhiteEnPassantEndangered)
{
GetEnPassantPositions(ref result, board, currentposition);
}
if (rank == 7 && board[file, rank - 1] == 0 && board[file, rank - 2] == 0)
{
tempboard = Piece.PerformMove(board, currentposition, new Square(file, rank - 2));
result = Piece.AddNewPosition(result, tempboard, false);
}
if (board[file, rank - 1] == 0)
{
tempboard = Piece.PerformMove(board, currentposition, new Square(file, rank - 1));
result = Piece.AddNewPosition(result, tempboard, false);
}
if (file >= 'a' && file <= 'g' && board[(char)(file + 1), rank - 1] > 0)
{
tempboard = Piece.PerformMove(board, currentposition, new Square((char)(file + 1), rank - 1));
result = Piece.AddNewPosition(result, tempboard, false);
}
if (file >= 'b' && file <= 'h' && board[(char)(file - 1), rank - 1] > 0)
{
tempboard = Piece.PerformMove(board, currentposition, new Square((char)(file - 1), rank - 1));
result = Piece.AddNewPosition(result, tempboard, false);
}
if (rank > 2 || result.Count == 0)
{
return(result);
}
else
{
return(GetPawnPromotionPositions(file, result, tempboard));
}
}
