void DrawBookMoves()
{
ClearArrows();
arrowIndex = 0;
if (book.HasPosition(board.ZobristKey))
{
BookPosition bookPosition = book.GetBookPosition(board.ZobristKey);
int mostPlayed = 0;
int leastPlayed = int.MaxValue;
foreach (var moveInfo in bookPosition.numTimesMovePlayed)
{
int numTimesPlayed = moveInfo.Value;
mostPlayed = System.Math.Max(mostPlayed, numTimesPlayed);
leastPlayed = System.Math.Min(leastPlayed, numTimesPlayed);
}
foreach (var moveInfo in bookPosition.numTimesMovePlayed)
{
Move move = new Move(moveInfo.Key);
int numTimesPlayed = moveInfo.Value;
Vector2 startPos = boardUI.PositionFromCoord(BoardRepresentation.CoordFromIndex(move.StartSquare));
Vector2 endPos = boardUI.PositionFromCoord(BoardRepresentation.CoordFromIndex(move.TargetSquare));
float t = Mathf.InverseLerp(leastPlayed, mostPlayed, numTimesPlayed);
if (mostPlayed == leastPlayed)
{
t = 1;
}
Color col = Color.Lerp(rarestCol, mostCommonCol, t);
DrawArrow2D(startPos, endPos, arrowWidth, arrowHeadSize, col, zPos: -1 - t);
}
}
}
void CreateBook()
{
var sw = System.Diagnostics.Stopwatch.StartNew();
Book book = new Book();
var reader = new StringReader(gamesFile.text);
string pgn;
Board board = new Board();
while (!string.IsNullOrEmpty(pgn = reader.ReadLine()))
{
Move[] moves = PGNLoader.MovesFromPGN(pgn, maxPlyCount: maxPlyToRecord);
board.LoadStartPosition();
for (int i = 0; i < moves.Length; i++)
{
book.Add(board.ZobristKey, moves[i]);
board.MakeMove(moves[i]);
}
}
string bookString = "";
foreach (var bookPositionsByZobristKey in book.bookPositions)
{
ulong key = bookPositionsByZobristKey.Key;
BookPosition bookPosition = bookPositionsByZobristKey.Value;
string line = key + ":";
bool isFirstMoveEntry = true;
foreach (var moveCountByMove in bookPosition.numTimesMovePlayed)
{
ushort moveValue = moveCountByMove.Key;
int moveCount = moveCountByMove.Value;
if (moveCount >= minMovePlayCount)
{
if (isFirstMoveEntry)
{
isFirstMoveEntry = false;
}
else
{
line += ",";
}
line += $" {moveValue} ({moveCount})";
}
}
bool hasRecordedAnyMoves = !isFirstMoveEntry;
if (hasRecordedAnyMoves)
{
bookString += line + System.Environment.NewLine;
}
}
//string s = fastJSON.JSON.ToJSON (book);
FileWriter.WriteToTextAsset_EditorOnly(bookFile, bookString, append);
Debug.Log("Created book: " + sw.ElapsedMilliseconds + " ms.");
//Book loadedBook = fastJSON.JSON.ToObject<Book> (s);
}
