Function pick_race

src/role.c:1080–1102

Pick a random race subject to any rolenum/gendnum/alignnum constraints. If pickhow == PICK_RIGID a race is returned only if there is a single possibility. */

   If pickhow == PICK_RIGID a race is returned only if there is
   a single possibility. */
int
pick_race(int rolenum, int gendnum, int alignnum, int pickhow)
{
    int i;
    int races_ok = 0;

    for (i = 0; i < SIZE(races) - 1; i++) {
        if (ok_race(rolenum, i, gendnum, alignnum))
            races_ok++;
    }
    if (races_ok == 0 || (races_ok > 1 && pickhow == PICK_RIGID))
        return ROLE_NONE;
    races_ok = rn2(races_ok);
    for (i = 0; i < SIZE(races) - 1; i++) {
        if (ok_race(rolenum, i, gendnum, alignnum)) {
            if (races_ok == 0)
                return i;
            else
                races_ok--;
        }
    }
    return ROLE_NONE;
}

/* is gendnum compatible with any rolenum/racenum/alignnum constraints? */
/* gender and alignment are not comparable (and also not constrainable) */