internal ChessMove[] GetBoardThreats(out bool ownKingUnderThreat, PiecePlayer playerToEvaluate)
{
ChessBoardLocation kingLocation = new ChessBoardLocation(-1, -1);
List <ChessMove> opponentMoves = new List <ChessMove>();
var player = playerToEvaluate == PiecePlayer.White ? PiecePlayer.Black : PiecePlayer.White;
for (int i = 0; i < BOARD_SIZE; i++)
{
for (int j = 0; j < BOARD_SIZE; j++)
{
if (_pieces[i, j].Player == playerToEvaluate)
{
var moves = GetAvailableMoves(playerToEvaluate, i, j, false);
opponentMoves.AddRange(moves);
}
else if (_pieces[i, j].Player == player && _pieces[i, j].Rank == PieceRank.King)
{
kingLocation = new ChessBoardLocation(i, j);
}
}
}
ownKingUnderThreat = opponentMoves.Where(o =>
o.To.HorizontalLocation == kingLocation.HorizontalLocation &&
o.To.VerticalLocation == kingLocation.VerticalLocation).Any();
if (ownKingUnderThreat == true)
{
// Currently board has been verified as "check".
// Now let's verify that is it also "checkmate".
}
return(opponentMoves.ToArray());
}
public ChessMove(PieceRank rank, PiecePlayer player, int horizontalLocationFrom, int verticalLocationFrom, int horizontalLocationTo, int verticalLocationTo, ChessSpecialMove specialMove)
{
Rank = rank;
Player = player;
From = new ChessBoardLocation(horizontalLocationFrom, verticalLocationFrom);
To = new ChessBoardLocation(horizontalLocationTo, verticalLocationTo);
SpecialMove = specialMove;
}