Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When an opponent's monster declares a direct attack, while the combined ATK of all face-up monsters they control is 8000 or higher: Special Summon 3 monsters with different original names in Attack Position, 1 each from your hand, Deck, and GY. You can only activate 1 "Dances with Beasts" per turn.
--獣湧き肉躍り
--Dances with Beasts
--Scripted by Eerie Code
local s,id=GetID()
local LOCATION_HDG = LOCATION_HAND|LOCATION_DECK|LOCATION_GRAVE
function s.initial_effect(c)
	--activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(Card.IsFaceup,tp,0,LOCATION_MZONE,nil)
	return Duel.GetAttacker():IsControler(1-tp) and Duel.GetAttackTarget()==nil
		and g:GetSum(Card.GetAttack)>=8000
end
function s.spfilter(c,e,tp)
	return c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_ATTACK)
end
function s.spcheck(sg,e,tp)
	return sg:GetClassCount(Card.GetOriginalCode)==#sg and sg:GetClassCount(Card.GetLocation)==#sg
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then 
		local g=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_HDG,0,nil,e,tp)
		return Duel.GetLocationCount(tp,LOCATION_MZONE)>2 
			and not Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT)
			and aux.SelectUnselectGroup(g,e,tp,3,3,s.spcheck,0)
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,3,tp,LOCATION_HDG)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<3 or Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then return end
	local g=Duel.GetMatchingGroup(aux.NecroValleyFilter(s.spfilter),tp,LOCATION_HDG,0,nil,e,tp)
	local sg=aux.SelectUnselectGroup(g,e,tp,3,3,s.spcheck,1,tp,HINTMSG_SPSUMMON)
	if #sg==3 then
		Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP_ATTACK)
	end
end