public void UpgradeMultiplier() { if (prefsControl.GetCurrentGameMoney() >= MULTIPLIER) { prefsControl.SetMinimumMultipler(prefsControl.GetMinimumMultipler() + 1); prefsControl.SetCurrentGameMoney(prefsControl.GetCurrentGameMoney() - MULTIPLIER); CalculateLevel(); } else { error.gameObject.SetActive(true); } }