public static StringBuilder AppendCastleRights(
this StringBuilder sb, HiFlags fBlackHi, HiFlags fWhiteHi, CastleRule castle)
{
if (((fBlackHi | fWhiteHi) & HiFlags.CanCastleMask) == 0)
{
sb.Append("-");
}
else if (castle is not null && castle.IsChess960)
{
var ruleWhite = castle.RuleParameter[White];
if ((fWhiteHi & HiFlags.CanOO) != 0 && ruleWhite.RookOOFrom.HasValue)
{
sb.Append((Char)('A' + ruleWhite.RookOOFrom));
}
if ((fWhiteHi & HiFlags.CanOOO) != 0 && ruleWhite.RookOOOFrom.HasValue)
{
sb.Append((Char)('A' + ruleWhite.RookOOOFrom));
}
var ruleBlack = castle.RuleParameter[Black];
if ((fBlackHi & HiFlags.CanOO) != 0 && ruleBlack.RookOOFrom.HasValue)
{
sb.Append((Char)('a' + ruleBlack.RookOOFrom - nRankLast));
}
if ((fBlackHi & HiFlags.CanOOO) != 0 && ruleBlack.RookOOOFrom.HasValue)
{
sb.Append((Char)('a' + ruleBlack.RookOOOFrom - nRankLast));
}
}
public GameState(ICommand Command)
{
if (Command is null)
{
throw new ArgumentNullException("Command");
}
this.Command = Command;
//
//[ToDo]Allocate a separate Pool of positions for each thread:
//
PositionPool = new Pool <Position>();
Bound = new SearchBound();
Rule = new CastleRule();
Case = new PerfCase();
newBestMoves(wDepthMax);
newTimers();
SeededRandom = new Random(); // Variable seed based on Environment.TickCount
loadEndgameValue();
loadExtensionLimit();
#if KillerCompositionHash
var uBottleLength = 8191U;
#else
var uBottleLength = wPlyHistory;
#endif
#if UseKillers
Bottle = new MoveBottle(uBottleLength);
#endif // UseKillers
wireControls();
newNodeDelta(wDepthMax);
newEarlyMoveCounts(wPlyHistory);
newPVDoubleCounts(wPlyHistory);
#if MaterialBalance
newCXPMemo(uDefaultComposition2);
#else
newCXPMemo(uDefaultCompositions);
#endif
newPXPMemo(uDefaultPawnPositions);
//clear();
}