Method resetMarkerFlags

src/OpenLoco/src/Map/MapGenerator/HeightMap.cpp:8–11

    constexpr uint8_t kHeightmapMarkedFlag = (1 << 7);

    void HeightMap::resetMarkerFlags()
    {
        std::for_each_n(data(), size(), [](uint8_t& value) { value &= ~kHeightmapMarkedFlag; });
    }

    uint8_t HeightMap::getHeight(TilePos2 pos) const
    {