if (flat_world_height >= 0) { // generating a flat world
        /* This doesn't require the extensive computations below */
        int max_value = min(MAX_SNOWLINE_HEIGHT, max((int)MIN_SNOWLINE_HEIGHT, flat_world_height - 2));
        uint half_max_value = max_value / 2 + max_value % 2;
        _settings_game.game_creation.snow_line_height = max(MIN_SNOWLINE_HEIGHT, half_max_value);
    }