private Tuple<bool, List<string>> IsInCheck(PlayerTypeEnum playerType, ChessBoard board, string lastMoveNotation)
{
PlayerTypeEnum opponentPlayerType = GetOppositePlayer(playerType);
List<string> opponentSquares = board.GetPiecesForPlayer(opponentPlayerType);
string kingNotation = board.GetKing(playerType);
if (kingNotation == null)
return new Tuple<bool, List<string>>(false, null);
bool isInCheck = false;
List<string> attackers = new List<string>();
foreach (var square in opponentSquares)
{
var opponentMoveResult = CanMove(board, square, kingNotation, opponentPlayerType, lastMoveNotation, false);
if (opponentMoveResult.Success)
{
isInCheck = true;
attackers.Add(square);
}
}
return new Tuple<bool, List<string>>(isInCheck, attackers);
}
