Function pick_role

src/role.c:1014–1033

pick a random role subject to any racenum/gendnum/alignnum constraints */ If pickhow == PICK_RIGID a role is returned only if there is */ a single possibility */

/* If pickhow == PICK_RIGID a role is returned only if there is  */
/* a single possibility */
int
pick_role(int racenum, int gendnum, int alignnum, int pickhow)
{
    int i;
    int roles_ok = 0, set[SIZE(roles)];

    for (i = 0; i < SIZE(roles) - 1; i++) {
        if (ok_role(i, racenum, gendnum, alignnum)
            && ok_race(i, (racenum >= 0) ? racenum : ROLE_RANDOM,
                       gendnum, alignnum)
            && ok_gend(i, racenum,
                       (gendnum >= 0) ? gendnum : ROLE_RANDOM, alignnum)
            && ok_align(i, racenum,
                        gendnum, (alignnum >= 0) ? alignnum : ROLE_RANDOM))
            set[roles_ok++] = i;
    }
    if (roles_ok == 0 || (roles_ok > 1 && pickhow == PICK_RIGID))
        return ROLE_NONE;
    return set[rn2(roles_ok)];
}

/* is racenum compatible with any rolenum/gendnum/alignnum constraints? */
boolean