public IBestMoveResult BestMove(Board board, SearchConfig config, MoveTimer timer, CancellationToken cancelToken)
{
_config = config;
_timer = timer;
_numNodesQuiessenceSearched = 0;
return BestMoveInternal(board, _config.DepthLimit, int.MinValue, int.MaxValue, cancelToken);
}
public IBestMoveResult BestMove(Board board, SearchConfig config, MoveTimer timer, CancellationToken cancelToken)
{
_config = config;
_timer = timer;
_numNodesQuiessenceSearched = 0;
return(BestMoveInternal(board, _config.DepthLimit, int.MinValue, int.MaxValue, cancelToken));
}
public IBestMoveResult BestMove(Board board, SearchConfig config, MoveTimer timer, CancellationToken cancelToken)
{
// initialize stats
_config = config;
_timer = timer;
_nodesGeneratedByDepth = Enumerable.Range(1, _config.DepthLimit).ToDictionary(x => x, x => 0);
_numNodesAtDepthLimit = 0;
_numNodesQuiessenceSearched = 0;
var result = BestMoveInternal(board, _config.DepthLimit, int.MinValue, int.MaxValue, cancelToken);
// fill stats
result.Config = _config;
result.NumNodesAtDepthLimit = _numNodesAtDepthLimit;
result.NodesGeneratedByDepth = _nodesGeneratedByDepth;
result.NumNodesQuiessenceSearched = _numNodesQuiessenceSearched;
result.TimedOut = _timedOut;
return result;
}
public IBestMoveResult BestMove(Board board, SearchConfig config, MoveTimer timer, CancellationToken cancelToken)
{
// initialize stats
_config = config;
_timer = timer;
_nodesGeneratedByDepth = Enumerable.Range(1, _config.DepthLimit).ToDictionary(x => x, x => 0);
_numNodesAtDepthLimit = 0;
_numNodesQuiessenceSearched = 0;
var result = BestMoveInternal(board, _config.DepthLimit, int.MinValue, int.MaxValue, cancelToken);
// fill stats
result.Config = _config;
result.NumNodesAtDepthLimit = _numNodesAtDepthLimit;
result.NodesGeneratedByDepth = _nodesGeneratedByDepth;
result.NumNodesQuiessenceSearched = _numNodesQuiessenceSearched;
result.TimedOut = _timedOut;
return(result);
}
public IBestMoveResult BestMove(Board board, SearchConfig config, MoveTimer timer, CancellationToken cancelToken)
{
_timer = timer;
_cancelToken = cancelToken;
if (_isWalledOff)
{
var longestPath = NextMoveOnLongestPath(board, board.PlayerToMove);
return(new BestMoveResult(longestPath.Item1, longestPath.Item2));
}
else // otherwise fall back to alpha beta
{
var ab = new AlphaBeta().BestMove(board, config, timer, cancelToken);
// but if alpha beta thinks we'll lose, do longest move
if (ab.Score == int.MinValue)
{
var longestPath = NextMoveOnLongestPath(board, board.PlayerToMove);
return(new BestMoveResult(longestPath.Item1, longestPath.Item2));
}
return(ab);
}
}
public AsyncSearchTask(TimeSpan timeout)
{
CancelSource = new CancellationTokenSource();
Timer = new MoveTimer();
Timer.SetTimeout(timeout);
}
public IBestMoveResult BestMove(Board board, SearchConfig config, MoveTimer timer, CancellationToken cancelToken)
{
_timer = timer;
_cancelToken = cancelToken;
if (_isWalledOff)
{
var longestPath = NextMoveOnLongestPath(board, board.PlayerToMove);
return new BestMoveResult(longestPath.Item1, longestPath.Item2);
}
else // otherwise fall back to alpha beta
{
var ab = new AlphaBeta().BestMove(board, config, timer, cancelToken);
// but if alpha beta thinks we'll lose, do longest move
if (ab.Score == int.MinValue)
{
var longestPath = NextMoveOnLongestPath(board, board.PlayerToMove);
return new BestMoveResult(longestPath.Item1, longestPath.Item2);
}
return ab;
}
}
public AsyncSearchTask(TimeSpan timeout)
{
CancelSource = new CancellationTokenSource();
Timer = new MoveTimer();
Timer.SetTimeout(timeout);
}