static bool map_matches_layout_type(const map_def &map)
{
    if (dgn_Layout_Type.empty() || !map.has_tag_prefix("layout_"))
        return true;
    return map.has_tag("layout_" + dgn_Layout_Type);
}

            && map_matches_layout_type(vdefs[i])

    const bool check_layout = (place == level_id::current());

            && (!check_layout || map_matches_layout_type(vdefs[i]))

            && map_matches_layout_type(vdefs[i])

extern std::string dgn_Layout_Type;

std::string dgn_Layout_Type;

            dgn_Layout_Type.clear();

    dgn_Layout_Type.clear();

    dgn_Layout_Type.clear();

    dgn_Layout_Type = "rooms";

        dgn_Layout_Type.clear();

    dgn_Layout_Type = "shaols";

    dgn_Layout_Type = "swamp";

    if (dgn_Layout_Type == "open" || dgn_Layout_Type == "cross")
        dgn_Layout_Type = "open";
    else if (iterations >= 100)
        dgn_Layout_Type  = "caves";
    else
        dgn_Layout_Type += "_spotty";

    dgn_Layout_Type  = "open";

    dgn_Layout_Type  = "rooms";

    dgn_Layout_Type  = "open";

    const int vault = random_map_for_tag("layout", false, true);

    const int vault = find_map_by_name("layout_forbidden_donut");

    dgn_Layout_Type  = "cross";

    const int vault = random_map_for_tag("layout", false, true);

    const int vault = find_map_by_name("layout_cross");

    dgn_Layout_Type  = "rooms";

    dgn_Layout_Type  = "city";

    dgn_Layout_Type  = "misc"; // XXX: What type of layout is this?

    dgn_Layout_Type  = "open"; // Octagon with pillars in middle

    const int vault = random_map_for_tag("layout", false, true);

    const int vault = find_map_by_name("layout_big_octagon");

    dgn_Layout_Type = "labyrinth";

    dgn_Build_Method = "city_level";
    dgn_Layout_Type  = "city";

 layout.des   - Level layout code that has been moved from dungeon.cc and
                rewritten in Lua.

          * "layout": Lua code that dungeon.cc uses for generating level
             layouts.  Do *NOT* use or mess with unlss you know what
             you're doing.
          * "layout_foo": Indicates what sort of level layouts this vault is
             compatible with, for vaults that don't fit in with all layouts;
             the absence of this type of tags means it can go with any layout.
             Multiple layout_foo tags can be used if it can be used with
             multiple layouts.   Current values for "foo" are: rooms, city,
             open, caves, cross, shoals, swamp, labyrithn (though currently
             random vaults aren't palced in the last three).