Function ceiling

src/dungeon.c:1713–1747

}

const char *
ceiling(coordxy x, coordxy y)
{
    struct rm *lev = &levl[x][y];
    const char *what;

    /* other room types will no longer exist when we're interested --
     * see check_special_room()
     */
    if (*in_rooms(x, y, VAULT))
        what = "vault's ceiling";
    else if (*in_rooms(x, y, TEMPLE))
        what = "temple's ceiling";
    else if (*in_rooms(x, y, SHOPBASE))
        what = "shop's ceiling";
    else if (Is_waterlevel(&u.uz))
        /* water plane has no surface; its air bubbles aren't below sky */
        what = "water above";
    else if (IS_AIR(lev->typ))
        what = "sky";
    else if (Is_firelevel(&u.uz))
        what = "flames above";
    else if (In_quest(&u.uz))
        /* just in case; try to avoid in caller if you can */
        what = "expanse above";
    else if (Underwater)
        what = "water's surface";
    else if ((IS_ROOM(lev->typ) && !Is_earthlevel(&u.uz))
             || IS_WALL(lev->typ) || IS_DOOR(lev->typ) || lev->typ == SDOOR)
        what = "ceiling";
    else
        what = "rock cavern";

    return what;
}

const char *
surface(coordxy x, coordxy y)