Method updateLoadCargoComponent

src/OpenLoco/src/Vehicles/VehicleHead.cpp:3327–3487

0x004BA19D

    // 0x004BA19D
    bool VehicleHead::updateLoadCargoComponent(VehicleCargo& cargo, VehicleBogie* bogie)
    {
        if (cargo.maxQty == 0)
        {
            return false;
        }
        if (stationId == StationId::null)
        {
            return false;
        }

        uint8_t loadingModifier = getLoadingModifier(bogie);

        auto* station = StationManager::get(stationId);
        auto orders = getCurrentOrders();
        if (cargo.qty == 0)
        {
            // bitmask of cargo to wait for
            uint32_t cargoToWaitFor = 0;
            for (auto& order : orders)
            {
                auto* waitFor = order.as<OrderWaitFor>();
                if (waitFor != nullptr)
                {
                    cargoToWaitFor |= (1 << waitFor->getCargo());
                }
                if (order.hasFlags(OrderFlags::IsRoutable))
                {
                    break;
                }
            }
            // bitmask of all cargo from orders
            uint32_t allPossibleCargoToWaitFor = 0;
            for (auto& order : orders)
            {
                auto* waitFor = order.as<OrderWaitFor>();
                if (waitFor != nullptr)
                {
                    allPossibleCargoToWaitFor |= (1 << waitFor->getCargo());
                }
            }
            if (allPossibleCargoToWaitFor == 0)
            {
                allPossibleCargoToWaitFor = 0xFFFFFFFF;
            }

            auto acceptedCargo = cargo.acceptedTypes;
            uint8_t chosenCargo = 0xFF;
            uint16_t highestQty = 0;
            for (; acceptedCargo != 0;)
            {
                auto possibleCargo = Numerics::bitScanForward(acceptedCargo);
                acceptedCargo &= ~(1 << possibleCargo);

                if (!(allPossibleCargoToWaitFor & (1 << possibleCargo)))
                {
                    continue;
                }