Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
FLIP: You can Special Summon 1 "Krawler" monster from your hand or GY, in face-up Attack Position or face-down Defense Position, except "Krawler Glial". If this face-up card in its owner's control leaves the field because of an opponent's card effect: You can Special Summon 2 "Krawler" monsters with different names from your Deck in face-down Defense Position, except "Krawler Glial". You can only use each effect of "Krawler Glial" once per turn.
--クローラー・グリア
--Krawler Glial
local s,id=GetID()
function s.initial_effect(c)
	--flip
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_FLIP+EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_DELAY)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
	--spsummon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_DAMAGE_STEP)
	e2:SetCode(EVENT_LEAVE_FIELD)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_KRAWLER}
s.listed_names={id}
function s.filter(c,e,tp)
	return c:IsSetCard(SET_KRAWLER) and not c:IsCode(id) and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_ATTACK|POS_FACEDOWN_DEFENSE)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_HAND|LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND|LOCATION_GRAVE)
end
function s.operation(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,aux.NecroValleyFilter(s.filter),tp,LOCATION_HAND|LOCATION_GRAVE,0,1,1,nil,e,tp)
	local tc=g:GetFirst()
	if not tc then return end
	if spos~=0 and Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP_ATTACK|POS_FACEDOWN_DEFENSE)~=0 then
		if tc:IsFacedown() then
			Duel.ConfirmCards(1-tp,tc)
		end
	end
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsPreviousPosition(POS_FACEUP) and c:GetLocation()~=LOCATION_DECK
		and c:IsReason(REASON_EFFECT) and c:GetReasonPlayer()==1-tp and c:IsPreviousControler(tp)
end
function s.filter1(c,e,tp)
	return c:IsSetCard(SET_KRAWLER) and not c:IsCode(id) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then return false end
		if Duel.GetLocationCount(tp,LOCATION_MZONE)<2 then return false end
		local g=Duel.GetMatchingGroup(s.filter1,tp,LOCATION_DECK,0,nil,e,tp)
		return g:GetClassCount(Card.GetCode)>=2
	end
	e:GetHandler():CreateEffectRelation(e)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,2,tp,LOCATION_DECK)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then return end
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<2 then return end
	local g=Duel.GetMatchingGroup(s.filter1,tp,LOCATION_DECK,0,nil,e,tp)
	local sg=aux.SelectUnselectGroup(g,e,tp,2,2,aux.dncheck,1,tp,HINTMSG_SPSUMMON)
	if sg then
		Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEDOWN_DEFENSE)
		Duel.ConfirmCards(1-tp,sg)
	end
end