Function count_buc

src/invent.c:3547–3575

* Returns the number of items with b/u/c/unknown within the given list. * This does NOT include contained objects. * * Assumes that the hero sees or touches or otherwise senses the objects * at some point: bknown is forced for priest[ess], like in xname(). */

 * at some point:  bknown is forced for priest[ess], like in xname().
 */
int
count_buc(struct obj *list, int type, boolean (*filterfunc)(OBJ_P))
{
    int count = 0;

    for (; list; list = list->nobj) {
        /* priests always know bless/curse state */
        if (Role_if(PM_CLERIC))
            list->bknown = (list->oclass != COIN_CLASS);
        /* some actions exclude some or most items */
        if (filterfunc && !(*filterfunc)(list))
            continue;

        /* coins are either uncursed or unknown based upon option setting */
        if (list->oclass == COIN_CLASS) {
            if (type == (flags.goldX ? BUC_UNKNOWN : BUC_UNCURSED))
                ++count;
            continue;
        }
        /* check whether this object matches the requested type */
        if (!list->bknown
                ? (type == BUC_UNKNOWN)
                : list->blessed ? (type == BUC_BLESSED)
                                : list->cursed ? (type == BUC_CURSED)
                                               : (type == BUC_UNCURSED))
            ++count;
    }
    return count;
}

/* similar to count_buc(), but tallies all states at once
   rather than looking for a specific type */