%isAffectedBy()

    Returns 1 if the given character or object is affected by all of the named
    affects, which follow the entity as parameters, are set on the entity.
    The following named affects can be used:

    Mobiles:

        bash                    fear                paralysis
        blindness               feign death         parry
        champion mode           fly                 poison
        channel                 follow              protection from evil
        charm                   group               sanctuary
        chill touch             half hp regen       sense life
        curse                   half mana regen     shocking grasp
        deadly poison           half move regen     silence
        death's door            heat of battle      sleep
        detect evil             hide                sneak
        detect invisibile       immortal stealth    strength
        detect magic            infravision         summoned
        dominated               invisibility        sweeping
        double hp regen         lich touch          water breath
        double mana regen       light               water walk
        double move regen       movement impaired

    Objects:

        anti-evil               glow                no remove
        anti-good               hum                 paladin only
        anti-neutral            invisible           ranger only
        bless                   mage only           striking
        cleric only             magic               thief only
        dark                    no drop             two-handed
        evil                    curse               warrior only
        expire                  no give             wear expire

    Example:

        //
        // This checks that BOTH affects are active.
        //
        if( %isAffectedBy( @n, "chill touch", "lich touch" ) )
        {
            cast dispel magic @n
        }
        endif

        //
        // This checks if EITHER affect is active.
        //
        if( %isAffectedBy( @n, poison )
        \   ||
        \   $isAffectedBy( @n, "deadly poison" ) )
        {
            talk @n You look like you're in pretty rough shape!
        }
        endif