Method getLoadingModifier

src/OpenLoco/src/Vehicles/VehicleHead.cpp:3030–3096

    }

    uint8_t VehicleHead::getLoadingModifier(const VehicleBogie* bogie)
    {
        constexpr uint8_t kMinVehiclePastStationPenalty = 1;
        constexpr uint8_t kRailVehiclePastStationPenalty = 12;
        constexpr uint8_t kRoadVehiclePastStationPenalty = 2;

        switch (mode)
        {
            default:
            case TransportMode::air:
            case TransportMode::water:
                return kMinVehiclePastStationPenalty;
            case TransportMode::rail:
            {
                auto tile = World::TileManager::get(Pos2{ bogie->tileX, bogie->tileY });
                auto direction = bogie->trackAndDirection.track.cardinalDirection();
                auto trackId = bogie->trackAndDirection.track.id();
                auto loadingModifier = Config::get().disableVehicleLoadPenaltyCheat ? kMinVehiclePastStationPenalty : kRailVehiclePastStationPenalty;
                auto* elStation = tile.trainStation(trackId, direction, bogie->tileBaseZ);
                if (elStation != nullptr)
                {
                    if (elStation->isAiAllocated() || elStation->isGhost())
                    {
                        break;
                    }

                    if (elStation->stationId() != stationId)
                    {
                        break;
                    }

                    loadingModifier = kMinVehiclePastStationPenalty;
                }
                return loadingModifier;
            }
            case TransportMode::road:
            {
                auto tile = World::TileManager::get(Pos2{ bogie->tileX, bogie->tileY });
                auto direction = bogie->trackAndDirection.road.cardinalDirection();
                auto roadId = bogie->trackAndDirection.road.id();
                auto loadingModifier = Config::get().disableVehicleLoadPenaltyCheat ? kMinVehiclePastStationPenalty : kRoadVehiclePastStationPenalty;
                auto* elStation = tile.roadStation(roadId, direction, bogie->tileBaseZ);
                if (elStation != nullptr)
                {
                    if (elStation->isAiAllocated() || elStation->isGhost())
                    {
                        break;
                    }

                    if (elStation->stationId() != stationId)
                    {
                        break;
                    }

                    auto* roadStationObj = ObjectManager::get<RoadStationObject>(elStation->objectId());
                    if (!roadStationObj->hasFlags(RoadStationFlags::roadEnd))
                    {
                        // Set on the vehicleHead awaitingCargoTransfer see note on flag