Function open

src/OpenLoco/src/Ui/Windows/MapWindow.cpp:2408–2464

0x0046B490

    // 0x0046B490
    void open()
    {
        auto window = WindowManager::bringToFront(WindowType::map, 0);
        if (window != nullptr)
        {
            return;
        }

        auto ptr = malloc(kRenderedMapSize * 2);
        if (ptr == nullptr)
        {
            return;
        }

        _mapPixels = static_cast<PaletteIndex_t*>(ptr);
        _mapAltPixels = &_mapPixels[kRenderedMapSize];

        Ui::Size size = { 350, 272 };

        if (Ui::getLastMapWindowAttributes().flags != WindowFlags::none)
        {
            size = { Ui::getLastMapWindowAttributes().size.width, Ui::getLastMapWindowAttributes().size.height };
            size.width = std::clamp<uint16_t>(size.width, 350, Ui::width());
            size.height = std::clamp<uint16_t>(size.height, 272, Ui::height() - 56);
        }

        window = WindowManager::createWindow(WindowType::map, size, WindowFlags::none, getEvents());
        window->setWidgets(kWidgets);
        window->initScrollWidgets();
        window->frameNo = 0;

        if (Ui::getLastMapWindowAttributes().flags != WindowFlags::none)
        {
            window->var_88A = Ui::getLastMapWindowAttributes().var88A;
            window->var_88C = Ui::getLastMapWindowAttributes().var88C;
            window->flags |= (Ui::getLastMapWindowAttributes().flags & WindowFlags::maximised);
        }

        auto skin = ObjectManager::get<InterfaceSkinObject>();
        window->setColour(WindowColour::primary, skin->windowTitlebarColour);
        window->setColour(WindowColour::secondary, skin->windowMapColour);

        window->var_846 = getCurrentRotation();

        clearMap();

        centerOnViewPoint();

        window->currentTab = 0;
        window->showTownNames = true;
        window->var_854 = 0;

        assignIndustryColours();
        assignRouteColours();

        mapFrameNumber = 0;
    }