private function GetPredictedCost($Level = null) { return Util::PredictValue($Level !== null ? $Level : $this->GetLevel(), self::GetCost($this->GetUpgradeId()), self::GetCostExponentialBase($this->GetUpgradeId()), true); }
private function GetPredictedCost($Level = null) { return Util::PredictValue($Level !== null ? $Level : $this->GetLevel(), self::GetCost($this->GetUpgradeId()), self::GetCostExponentialBase($this->GetUpgradeId()), true); }