private void Session_TurnBegun(object sender, GameLogic.TurnBegunEventArgs e)
{
// Since this is the only code that updates this array and
// we ASSUME that session is handled correctly elsewhere...
// so no race condition on the event trigger...
// ...then we should not need a lock here.
// (Importantly, reference assignment is atomic in .Net)
int i = turnCacheIndex + 1 % turnCache.Length;
turnCache[i] = new TurnCache(e, session.CurrentSlot);
turnCacheIndex = i;
}
// returns (0,-1) if the game has not started yet.
// returns (t,-1) if piece is out of range.
public (int turn, int slot) GetPieceInfo(int piece, out PieceInfo pieceInfo)
{
pieceInfo = null;
// must grab a local reference to our cache object to be safe:
TurnCache turn = CurrentTurn;
if (turn == null) // game not started yet.
{
return(0, -1);
}
if (unchecked ((uint)piece >= (uint)session.PieceCount))
{
return(turn.Turn, -1);
}
pieceInfo = turn.pieces[piece];
return(turn.Turn, turn.Slot);
}
