Function obj_extract_self

src/mkobj.c:2556–2592

* Free obj from whatever list it is on in preparation for deleting it * or moving it elsewhere; obj->where will end up set to OBJ_FREE unless * it is already OBJ_LUAFREE or OBJ_DELETED. * Doesn't handle unwearing of objects in hero's or monsters' inventories. * * Object positions: * OBJ_FREE not on any list * OBJ_FLOOR fobj, level.locations[][] chains (use remove_obje

 *      OBJ_DELETED     obj has been deleted from play but not yet deallocated
 */
void
obj_extract_self(struct obj *obj)
{
    switch (obj->where) {
    case OBJ_FREE:
    case OBJ_LUAFREE:
    case OBJ_DELETED:
        break;
    case OBJ_FLOOR:
        remove_object(obj);
        break;
    case OBJ_CONTAINED:
        extract_nobj(obj, &obj->ocontainer->cobj);
        container_weight(obj->ocontainer);
        obj->ocontainer = (struct obj *) 0; /* clear stale back-link */
        break;
    case OBJ_INVENT:
        freeinv(obj);
        break;
    case OBJ_MINVENT:
        extract_nobj(obj, &obj->ocarry->minvent);
        obj->ocarry = (struct monst *) 0; /* clear stale back-link */
        break;
    case OBJ_MIGRATING:
        extract_nobj(obj, &gm.migrating_objs);
        break;
    case OBJ_BURIED:
        extract_nobj(obj, &svl.level.buriedobjlist);
        break;
    case OBJ_ONBILL:
        extract_nobj(obj, &gb.billobjs);
        break;
    default:
        panic("obj_extract_self, where=%d", obj->where);
        break;
    }
}

/* Extract the given object from the chain, following nobj chain. */
void