public static string getUpgradeName(UpgradeStat stat)
    {
        if (stat==UpgradeStat.Cooldown)
            return "Firerate";
        if (stat==UpgradeStat.EnergyCost)
            return "Cooling";

        return stat.ToString();
    }
    public static string getUpgradeName(UpgradeStat stat)
    {
        if (stat == UpgradeStat.Cooldown)
        {
            return("Firerate");
        }
        if (stat == UpgradeStat.EnergyCost)
        {
            return("Cooling");
        }

        return(stat.ToString());
    }