public void BuyBoosters() { if (isActive) { libraryMenu.windowWarning.Show(TextStrings.GetString("booster_is_active")); } else { if (Bank.GetFreeBooster(boosterNum) > 0) { lastDateTime = System.DateTime.Now; PreferencesSaver.SetBoosterActivateTime(boosterNum, lastDateTime); Bank.MinusFreeBooster(boosterNum, 1); } else { if (BoosterValues.BoosterCost[boosterNum] > Bank.GetMoney()) { libraryMenu.windowWarning.Show(TextStrings.GetString("no_money")); } else { lastDateTime = System.DateTime.Now; PreferencesSaver.SetBoosterActivateTime(boosterNum, lastDateTime); Bank.MinusMoney(BoosterValues.BoosterCost[boosterNum]); } } } }