Function capOfTypeOfIndustry

src/OpenLoco/src/World/IndustryManager.cpp:421–435

0x00459722 & 0x004598F0

    // 0x00459722 & 0x004598F0
    int32_t capOfTypeOfIndustry(const uint8_t indObjId, const uint8_t numIndustriesFactor)
    {
        const auto* indObj = ObjectManager::get<IndustryObject>(indObjId);

        // totalOfTypeInScenario is in the range of 1->32 inclusive
        // numIndustriesFactor is in the range of 0->2 (low, med, high)
        // This formula is ultimately staticPreferredTotalOfType = 1/4 * ((numIndustriesFactor + 1) * indObj->totalOfTypeInScenario)
        // but we will do it in two steps to keep identical results.
        const auto intermediate1 = ((numIndustriesFactor + 1) * indObj->totalOfTypeInScenario) / 3;
        const auto staticPreferredTotalOfType = intermediate1 - intermediate1 / 4;

        // The preferred total can vary by up to a half of the static preferred total.
        const auto randomPreferredTotalOfType = (staticPreferredTotalOfType / 2) * (gPrng1().randNext(0xFF) / 256);
        return staticPreferredTotalOfType + randomPreferredTotalOfType;
    }

    // 0x00459722
    static bool hasReachedCapOfTypeOfIndustry(const uint8_t indObjId)