Function ScreenGetMapXYSideWithZ

src/openrct2/interface/Viewport.cpp:1914–1922

* * rct2: 0x006896DC */

     *  rct2: 0x006896DC
     */
    std::optional<CoordsXY> ScreenGetMapXYSideWithZ(const ScreenCoordsXY& screenCoords, int32_t z, uint8_t* side)
    {
        auto mapCoords = ScreenGetMapXYWithZ(screenCoords, z);
        if (!mapCoords.has_value())
            return std::nullopt;

        *side = MapGetTileSide(*mapCoords);
        return mapCoords->ToTileStart();
    }

    ScreenCoordsXY Translate3DTo2DWithZ(int32_t rotation, const CoordsXYZ& pos)
    {