private static bool LoadRndHistory(string historyId)
{
if (indexHistory.ContainsKey(historyId))
{
indexHistory.Remove(historyId);
}
var list = new List <int>(MiscellaneousUtils.intArrayFromCsv(PlayerPrefs.GetString(historyId, "")));
indexHistory.Add(historyId, list);
return(indexHistory[historyId]._IsNullOrEmpty());
}