Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If a face-up "Memento" monster(s) you control leaves the field because of an opponent's card: Special Summon 1 "Mementoal Tecuhtlica - Combined Creation" from your hand or Deck, ignoring its Summoning conditions. If your opponent moves a "Memento" monster(s) out of your GY, while this card is in your GY (except during the Damage Step): You can banish this card; Special Summon as many "Memento" monsters as possible with different names from your hand and/or Deck. You can only use each effect of "Mementotlan Bone Back" once per turn.
--メメント・ボーン・バック
--Mementotlan Bone Back
--Scripted by Satellaa
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon 1 "Mementoal Tecuhtlica - Combined Creation" from your hand or Deck
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCode(EVENT_LEAVE_FIELD)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Special Summon as many "Memento" monsters as possible 
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DELAY,EFFECT_FLAG2_CHECK_SIMULTANEOUS)
	e2:SetCode(EVENT_LEAVE_GRAVE)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.spmanycon)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.spmanytg)
	e2:SetOperation(s.spmanyop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_MEMENTO}
s.listed_names={CARD_MEMENTOAL_TECUHTLICA}
function s.cfilter(c,tp)
	return c:IsPreviousSetCard(SET_MEMENTO) and c:GetReasonPlayer()==1-tp and c:IsPreviousControler(tp)
		and c:IsPreviousLocation(LOCATION_MZONE) and c:IsPreviousPosition(POS_FACEUP)
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.cfilter,1,nil,tp)
end
function s.spfilter(c,e,tp)
	return c:IsCode(CARD_MEMENTOAL_TECUHTLICA) and c:IsCanBeSpecialSummoned(e,0,tp,true,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_HAND|LOCATION_DECK,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND|LOCATION_DECK)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.spfilter,tp,LOCATION_HAND|LOCATION_DECK,0,1,1,nil,e,tp)
	if #g>0 then
		Duel.SpecialSummon(g,0,tp,tp,true,false,POS_FACEUP)
	end
end
function s.outgravecfilter(c,tp)
	return c:IsMonster() and c:IsSetCard(SET_MEMENTO) and c:IsPreviousControler(tp)
end
function s.spmanycon(e,tp,eg,ep,ev,re,r,rp)
	return rp==1-tp and eg:IsExists(s.outgravecfilter,1,nil,tp)
end
function s.spmanyfilter(c,e,tp)
	return c:IsSetCard(SET_MEMENTO) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.spmanytg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and Duel.IsExistingMatchingCard(s.spmanyfilter,tp,LOCATION_HAND|LOCATION_DECK,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND|LOCATION_DECK)
end
function s.spmanyop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(s.spmanyfilter,tp,LOCATION_HAND|LOCATION_DECK,0,nil,e,tp)
	local ct=math.min(Duel.GetLocationCount(tp,LOCATION_MZONE),g:GetClassCount(Card.GetCode))
	if ct<=0 then return end
	if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then ct=1 end
	local sg=aux.SelectUnselectGroup(g,e,tp,ct,ct,aux.dncheck,1,tp,HINTMSG_SPSUMMON)
	if #sg>0 then
		Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP)
	end
end