Function getZoomVolumeModifier

src/OpenLoco/src/Audio/VehicleAudio.cpp:32–35

    constexpr int32_t kPanFalloffEnd = 3072;

    static int8_t getZoomVolumeModifier(uint8_t zoom)
    {
        return std::min<uint8_t>(zoom, 2) * kVolumeModifierZoomIncrement;
    }

    static bool isUnderground(const World::Pos3& pos)
    {