private async Task <IPerftResult> ComputePerft(CancellationToken cancellationToken)
{
_result.Clear();
var pp = _perft.Positions.Last();
var baseFileName = SaveResults ? Path.Combine(System.Environment.CurrentDirectory, $"{FixFileName(pp.Fen)}[") : string.Empty;
var errors = 0;
var sw = new Stopwatch();
_result.Fen = pp.Fen;
_perft.SetGamePosition(pp);
PrintBoard(_perft.GetBoard());
_log.Information("Fen : {0}", pp.Fen);
_log.Information(Line);
foreach (var(depth, expected) in pp.Value)
{
if (cancellationToken.IsCancellationRequested)
{
_log.Information("Cancel requested.");
break;
}
_log.Information("Depth : {0}", depth);
sw.Restart();
var result = await _perft.DoPerftAsync(depth).ConfigureAwait(false);
sw.Stop();
var elapsedMs = sw.ElapsedMilliseconds;
await ComputeResults(result, depth, expected, elapsedMs, _result);
errors += await LogResults(_result);
if (!string.IsNullOrEmpty(baseFileName))
{
File.WriteAllText($"{baseFileName}{_result.Depth}].json", JsonConvert.SerializeObject(_result));
}
}
_log.Information("{0} parsing complete. Encountered {1} errors.", _usingEpd ? "EPD" : "FEN", errors);
_result.Errors = errors;
return(_result);
}