/// <summary>
/// Initializes a new instance of the <see cref="EnginePlayerMoveSearcher"/> class
/// using the specified parameters.
/// </summary>
internal EnginePlayerMoveSearcher(
[NotNull] ILogger logger,
[NotNull] GameBoard rootBoard,
int plyDepth,
[NotNull] BoardHelper boardHelper,
[CanBeNull] TranspositionTable transpositionTable,
[CanBeNull] VariationLineCache previousIterationVariationLineCache,
[NotNull] GameControlInfo gameControlInfo,
bool useMultipleProcessors,
[NotNull] MoveHistoryStatistics moveHistoryStatistics)
{
if (plyDepth < CommonEngineConstants.MaxPlyDepthLowerLimit)
{
throw new ArgumentOutOfRangeException(
nameof(plyDepth),
plyDepth,
$@"The value must be at least {CommonEngineConstants.MaxPlyDepthLowerLimit}.");
}
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
_rootBoard = rootBoard ?? throw new ArgumentNullException(nameof(rootBoard));
_plyDepth = plyDepth;
_boardHelper = boardHelper;
_transpositionTable = transpositionTable;
_previousIterationVariationLineCache = previousIterationVariationLineCache;
_gameControlInfo = gameControlInfo ?? throw new ArgumentNullException(nameof(gameControlInfo));
_useMultipleProcessors = useMultipleProcessors;
_moveHistoryStatistics = moveHistoryStatistics ?? throw new ArgumentNullException(nameof(moveHistoryStatistics));
_evaluator = new Evaluator(gameControlInfo, boardHelper);
VariationLineCache = new VariationLineCache(rootBoard);
}
public EnginePlayer(
[NotNull] ILogger logger,
[NotNull] IOpeningBookProvider openingBookProvider,
GameSide side,
[NotNull] EnginePlayerParameters parameters)
: base(side)
{
if (openingBookProvider is null)
{
throw new ArgumentNullException(nameof(openingBookProvider));
}
if (parameters is null)
{
throw new ArgumentNullException(nameof(parameters));
}
if (parameters.MaxPlyDepth < CommonEngineConstants.MaxPlyDepthLowerLimit)
{
throw new ArgumentOutOfRangeException(
nameof(parameters.MaxPlyDepth),
parameters.MaxPlyDepth,
$@"The value must be at least {CommonEngineConstants.MaxPlyDepthLowerLimit}.");
}
if (parameters.MaxTimePerMove.HasValue && parameters.MaxTimePerMove.Value <= TimeSpan.Zero)
{
throw new ArgumentOutOfRangeException(
nameof(parameters.MaxTimePerMove),
parameters.MaxTimePerMove,
@"The time per move, if specified, must be positive.");
}
_logger = logger ?? throw new ArgumentNullException(nameof(logger));
_openingBookRandom = new Random();
MaxPlyDepth = parameters.MaxPlyDepth;
_openingBook = parameters.UseOpeningBook ? openingBookProvider.VariedOpeningBook : null;
_maxTimePerMove = parameters.MaxTimePerMove;
_useMultipleProcessors = parameters.UseMultipleProcessors;
_transpositionTable = parameters.UseTranspositionTable
? new TranspositionTable(_logger, parameters.TranspositionTableSizeInMegaBytes)
: null;
}