Function drawScroll

src/OpenLoco/src/Ui/Windows/MapWindow.cpp:2157–2199

0x0046B806

    // 0x0046B806
    static void drawScroll(Window& self, Gfx::DrawingContext& drawingCtx, [[maybe_unused]] const uint32_t scrollIndex)
    {
        if (!Game::hasFlags(GameStateFlags::tileManagerLoaded))
        {
            return;
        }

        drawingCtx.clearSingle(PaletteIndex::black0);

        auto* element = Gfx::getG1Element(0);
        auto backupElement = *element;

        auto* offset = _mapPixels;
        if (mapFrameNumber & (1 << 2))
        {
            offset = _mapAltPixels;
        }

        Gfx::getG1Element(0)->offset = offset;
        Gfx::getG1Element(0)->width = kMapColumns * 2;
        Gfx::getG1Element(0)->height = kMapRows * 2;
        Gfx::getG1Element(0)->xOffset = 0;
        Gfx::getG1Element(0)->yOffset = 0;
        Gfx::getG1Element(0)->flags = Gfx::G1ElementFlags::none;

        drawingCtx.drawImage(0, 0, 0);

        *element = backupElement;

        if (self.currentTab + widx::tabOverall == widx::tabVehicles)
        {
            countVehiclesOnMap();
        }

        drawVehiclesOnMap(drawingCtx, self.currentTab + widx::tabOverall);

        drawViewportPosition(drawingCtx);

        if (self.showTownNames)
        {
            drawTownNames(drawingCtx);
        }
    }

    static constexpr WindowEventList kEvents = {
        .onClose = onClose,