Function u_slip_free

src/mhitu.c:1046–1085

check whether slippery clothing protects from hug or wrap attack */

/* check whether slippery clothing protects from hug or wrap attack */
boolean
u_slip_free(
    struct monst *mtmp,
    struct attack *mattk)
{
    struct obj *obj;

    /* greased armor does not protect against AT_ENGL+AD_WRAP */
    if (mattk->aatyp == AT_ENGL)
        return FALSE;

    obj = (uarmc ? uarmc : uarm);
    if (!obj)
        obj = uarmu;
    if (mattk->adtyp == AD_DRIN)
        obj = uarmh;

    /* if your cloak/armor is greased, monster slips off; this
       protection might fail (33% chance) when the armor is cursed */
    if (obj && (obj->greased || obj->otyp == OILSKIN_CLOAK)
        && (!obj->cursed || rn2(3))) {
        pline_mon(mtmp, "%s %s your %s %s!", Monnam(mtmp),
              (mattk->adtyp == AD_WRAP) ? "slips off of"
                                        : "grabs you, but cannot hold onto",
              obj->greased ? "greased" : "slippery",
              /* avoid "slippery slippery cloak"
                 for undiscovered oilskin cloak */
              (obj->greased || objects[obj->otyp].oc_name_known)
                  ? xname(obj)
                  : cloak_simple_name(obj));

        if (obj->greased && !rn2(2)) {
            pline_The("grease wears off.");
            obj->greased = 0;
            update_inventory();
        }
        return TRUE;
    }
    return FALSE;
}

/* armor that sufficiently covers the body might be able to block magic */
int