Function is_worn

src/invent.c:2155–2161

}

boolean
is_worn(struct obj *otmp)
{
    return (otmp->owornmask & (W_ARMOR | W_ACCESSORY | W_SADDLE | W_WEAPONS))
            ? TRUE
            : FALSE;
}

/* is 'obj' being used by the hero?  worn, wielded, active lamp or leash;
   not to be confused with obj->in_use, which finishes using up an item