Function removePort

src/OpenLoco/src/GameCommands/Docks/RemovePort.cpp:78–131

0x00494570

    // 0x00494570
    static currency32_t removePort(const PortRemovalArgs& args, const uint8_t flags)
    {
        setExpenditureType(ExpenditureType::Construction);
        setPosition(args.pos + World::Pos3(16, 16, 0));

        // Find station element on tile
        auto* stationEl = getStationEl(args.pos);
        if (stationEl == nullptr)
        {
            return kFailure;
        }

        StationId stationId = StationId::null;
        const auto rotation = stationEl->rotation();

        // Do we need to remove the port from a station?
        if ((flags & Flags::ghost) == 0)
        {
            stationId = stationEl->stationId();
        }

        // Station in use by a vehicle?
        if (stationEl->isFlag6())
        {
            GameCommands::setErrorText(StringIds::currently_in_use_by_at_least_one_vehicle);
            return kFailure;
        }

        // Calculate base removal cost
        auto* dockObj = ObjectManager::get<DockObject>(stationEl->objectId());
        currency32_t totalCost = Economy::getInflationAdjustedCost(dockObj->sellCostFactor, dockObj->costIndex, 7);

        // Remove the actual tile elements associated with the port
        if (!removePortTileElements(args.pos, flags))
        {
            return kFailure;
        }

        // Should we update the station meta data?
        if ((flags & Flags::ghost) == 0 && (flags & Flags::apply) != 0)
        {
            auto* station = StationManager::get(stationId);

            removeTileFromStationAndRecalcCargo(stationId, args.pos, rotation);
            station->invalidate();

            recalculateStationModes(stationId);
            recalculateStationCenter(stationId);
            station->updateLabel();
            station->invalidate();
        }

        return totalCost;
    }

    void removePort(registers& regs)
    {