childsprite {
            sprite: GROUNDSPRITE_SNOW_4_4;
            recolour_mode: RECOLOUR_REMAP;
            palette: PALETTE_USE_DEFAULT;
            always_draw: 1;
            hide_sprite: (climate != CLIMATE_ARCTIC) || (climate == CLIMATE_ARCTIC) && (nearby_tile_height(0, 0) < (snowline_height + 2));
        }