#define F_PERMANENT 1              /* object is permanent; do not destruct
                                      on death */
#define F_FORSALE 2                /* object is duplicated when bought from
                                      shopkeepers, destroyed when sold to */
#define F_HOSTILE 4                /* object is sociopathic */
#define F_TEMPLE 8                 /* players can reincarnate here */
#define F_DARK 16                  /* can't see inventory of object */