Function learnwand

src/zap.c:122–151

wand discovery gets special handling when hero is blinded */

/* wand discovery gets special handling when hero is blinded */
void
learnwand(struct obj *obj)
{
    /* For a wand (or wand-like tool) zapped by the player, if the
       effect was observable (determined by caller; usually seen, but
       possibly heard or felt if the hero is blinded) then discover the
       object type provided that the object itself is known (as more
       than just "a wand").  If object type is already discovered and
       we observed the effect, mark the individual wand as having been
       seen.  Suppress spells (which use fake spellbook object for `obj')
       so that casting a spell won't re-discover its forgotten book. */
    if (obj->oclass != SPBOOK_CLASS) {
        /* if type already discovered, treat this item has having been seen
           even if hero is currently blinded (skips redundant makeknown) */
        if (objects[obj->otyp].oc_name_known) {
            observe_object(obj); /* will usually be dknown already */

        /* otherwise discover it if item itself has been or can be seen */
        } else {
            /* in case it was picked up while blind and then zapped without
               examining inventory after regaining sight (bypassing xname) */
            if (!Blind)
                observe_object(obj);
            /* make the discovery iff we know what we're manipulating */
            if (obj->dknown)
                makeknown(obj->otyp);
        }
        update_inventory();
    }
}

/*
 * Routines for IMMEDIATE wands and spells.