Function setMapPixelsIndustries

src/OpenLoco/src/Ui/Windows/MapWindow.cpp:536–655

0x0046C9A8

    // 0x0046C9A8
    static void setMapPixelsIndustries(PaletteIndex_t* mapPtr, PaletteIndex_t* mapAltPtr, Pos2 pos, Pos2 delta)
    {
        for (auto rowCountLeft = kMapColumns; rowCountLeft > 0; rowCountLeft--)
        {
            // Coords shouldn't be at map edge
            if (!(pos.x > 0 && pos.y > 0 && pos.x < kMapWidth - kTileSize && pos.y < kMapHeight - kTileSize))
            {
                pos += delta;
                mapPtr += kRenderedMapWidth + 1;
                mapAltPtr += kRenderedMapWidth + 1;
                continue;
            }

            PaletteIndex_t colourFlash0{}, colourFlash1{}, colour0{}, colour1{};
            auto tile = TileManager::get(pos);
            for (auto& el : tile)
            {
                switch (el.type())
                {
                    case ElementType::surface:
                    {
                        auto* surfaceEl = el.as<SurfaceElement>();
                        if (surfaceEl == nullptr)
                        {
                            continue;
                        }

                        if (surfaceEl->water() > 0)
                        {
                            const auto* waterObj = ObjectManager::get<WaterObject>();
                            const auto* waterImage = Gfx::getG1Element(waterObj->mapPixelImage);
                            colour0 = colour1 = colourFlash0 = colourFlash1 = waterImage->offset[0];
                        }
                        else
                        {
                            const auto* landObj = ObjectManager::get<LandObject>(surfaceEl->terrain());
                            const auto* landImage = Gfx::getG1Element(landObj->mapPixelImage);
                            colour0 = colour1 = colourFlash0 = colourFlash1 = landImage->offset[0];
                        }

                        if (surfaceEl->isIndustrial())
                        {
                            const auto* industry = IndustryManager::get(surfaceEl->industryId());
                            const auto colourIndex = _assignedIndustryColours[industry->objectId];
                            colour0 = colourFlash0 = kIndustryColours[colourIndex];
                            if (_flashingItems & (1 << industry->objectId))
                            {
                                colourFlash0 = PaletteIndex::black0;
                            }
                        }
                        break;
                    }

                    case ElementType::building:
                        // Vanilla omitted the ghost check
                        if (!el.isGhost())
                        {
                            colour0 = colourFlash0 = PaletteIndex::mutedDarkRed2;