Function somexy

src/mkroom.c:693–740

return a coord c inside mkroom croom, but not in a subroom. returns TRUE if any such space found. can return a non-accessible location, eg. inside a wall if a themed room is not irregular, but has some non-room terrain */

   can return a non-accessible location, eg. inside a wall
   if a themed room is not irregular, but has some non-room terrain */
boolean
somexy(struct mkroom *croom, coord *c)
{
    int try_cnt = 0;
    int i;

    if (croom->irregular) {
        i = (int) ((croom - svr.rooms) + ROOMOFFSET);

        while (try_cnt++ < 100) {
            c->x = somex(croom);
            c->y = somey(croom);
            if (!levl[c->x][c->y].edge && (int) levl[c->x][c->y].roomno == i)
                return TRUE;
        }
        /* try harder; exhaustively search until one is found */
        for (c->x = croom->lx; c->x <= croom->hx; c->x++)
            for (c->y = croom->ly; c->y <= croom->hy; c->y++)
                if (!levl[c->x][c->y].edge
                    && (int) levl[c->x][c->y].roomno == i)
                    return TRUE;
        return FALSE;
    }

    if (!croom->nsubrooms) {
        c->x = somex(croom);
        c->y = somey(croom);
        return TRUE;
    }

    /* Check that coords doesn't fall into a subroom or into a wall */

    while (try_cnt++ < 100) {
        c->x = somex(croom);
        c->y = somey(croom);
        if (IS_WALL(levl[c->x][c->y].typ))
            continue;
        for (i = 0; i < croom->nsubrooms; i++)
            if (inside_room(croom->sbrooms[i], c->x, c->y))
                goto you_lose;
        break;
 you_lose:
        ;
    }
    if (try_cnt >= 100)
        return FALSE;
    return TRUE;
}

/* like somexy(), but returns an accessible location */
boolean