bool no_immobile  = false;

    level_id place;

                const coord_def place =

                const coord_def loc =

                if (!in_bounds(place))

                if (!in_bounds(loc))

                                                   place, false, true, false);

                                                   loc, false, true, false);

                        place.x, place.y);

                        loc.x, loc.y);

        no_immobile   = strip_tag(spec, "no_immobile");

        std::string arena_place = strip_tag_prefix(spec, "arena_place:");
        if (!arena_place.empty())
        {
            try {
                place = level_id::parse_level_id(arena_place);
            }
            catch (const std::string &err)
            {
                throw make_stringf("Bad place '%s': %s",
                                   arena_place.c_str(),
                                   err.c_str());
            }
        }

        you.your_level = 20;

        if (place.is_valid())
        {
            you.level_type    = place.level_type;
            you.where_are_you = place.branch;
            you.your_level    = place.absdepth();
        }
        else
            you.your_level = 20;

    void cull_immobile()
    {
        if (!no_immobile)
            return;
        for (int i = 0; i < MAX_MONSTERS; i++)
        {
            monsters* mon = &menv[i];
            if (!mon->alive())
                continue;
            if (mons_is_stationary(mon) && mon->is_summoned())
                monster_die(mon, KILL_DISMISSED, NON_MONSTER, true, true);
        }
    }

                cull_immobile();