bool ReadPGN(string filename, int maxHeight)
{
POSITION pos = new POSITION();
PgnFileStruct pgn = pos.ReadPgnFile(filename);
if (pgn.StartFEN != POSITION.cszStartFen)
{
Console.WriteLine("非开局或全局谱");
return(false);
}
int result;
switch (pgn.Result)
{
case "0-1":
result = -1;
break;
case "1-0":
result = 1;
break;
case "1/2-1/2":
result = 0;
break;
default:
return(false);
}
pos.FromFEN(pgn.StartFEN);
int height = 0;
foreach (MOVE mv in pgn.MoveList)
{
pos.MakeMove(mv, false);
ulong key = pos.Key;
if (Book.TryGetValue(key, out BookEntry entry))
{
switch (result)
{
case 1:
entry.win++;
Debug.Assert(entry.win < ushort.MaxValue);
break;
case 0:
entry.draw++;
Debug.Assert(entry.loss < ushort.MaxValue);
break;
case -1:
entry.loss++;
Debug.Assert(entry.draw < ushort.MaxValue);
break;
default:
Debug.Fail("Unknown result");
break;
}
Book[key] = entry;
}
else
{
ulong mirror_key = pos.CalculateZobrist(true);
if (Book.TryGetValue(mirror_key, out entry))
{
switch (result)
{
case 1:
entry.win++;
Debug.Assert(entry.win < ushort.MaxValue);
break;
case 0:
entry.draw++;
Debug.Assert(entry.loss < ushort.MaxValue);
break;
case -1:
entry.loss++;
Debug.Assert(entry.draw < ushort.MaxValue);
break;
default:
Debug.Fail("Unknown result");
break;
}
Book[mirror_key] = entry;
}
else
{
entry = new BookEntry();
switch (result)
{
case 1:
entry.win = 1;
break;
case 0:
entry.draw = 1;
break;
case -1:
entry.loss = 1;
break;
default:
Debug.Fail("Unknown result");
return(false);
}
Book.Add(key, entry);
}
}
height++;
if (height > maxHeight)
{
return(true);
}
}
return(true);
}
public bool TryGetValue(ulong key, out BookEntry entry)
{
return(Book.TryGetValue(key, out entry));
}
