Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
● While in Attack Position: Once per turn, you can roll a six-sided die. Reveal cards from top of your Deck equal to the roll and Special Summon 1 Level 4 or lower "Morphtronic" monster from among them, ignoring the Summoning conditions. Shuffle the rest into the Deck. ● While in Defense Position: Once per turn, you can roll a six-sided die. Look at cards from top of your Deck equal to the roll, then return them in the same order.
--D・モバホン
--Morphtronic Celfon
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetCountLimit(1)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.cona)
	e1:SetTarget(s.tga)
	e1:SetOperation(s.opa)
	c:RegisterEffect(e1)
	--confirm top deck
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetCountLimit(1)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCondition(s.cond)
	e2:SetTarget(s.tgd)
	e2:SetOperation(s.opd)
	c:RegisterEffect(e2)
end
s.roll_dice=true
s.listed_series={SET_MORPHTRONIC}
function s.cona(e,tp,eg,ep,ev,re,r,rp)
	return not e:GetHandler():IsDisabled() and e:GetHandler():IsAttackPos()
end
function s.cond(e,tp,eg,ep,ev,re,r,rp)
	return not e:GetHandler():IsDisabled() and e:GetHandler():IsDefensePos()
end
function s.cfilter(c)
	return c:IsLevelBelow(4) and c:IsSetCard(SET_MORPHTRONIC) and c:IsMonster()
end
function s.tga(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)>0
		and Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_DICE,nil,0,tp,1)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,0,tp,LOCATION_DECK)
end
function s.tgd(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)>0 end
	Duel.SetOperationInfo(0,CATEGORY_DICE,nil,0,tp,1)
end
function s.filter(c,e,tp)
	return c:IsLevelBelow(4) and c:IsSetCard(SET_MORPHTRONIC) and c:IsMonster() and c:IsCanBeSpecialSummoned(e,0,tp,true,false)
end
function s.opa(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)==0 then return end
	local dc=Duel.TossDice(tp,1)
	Duel.ConfirmDecktop(tp,dc)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	local g=Duel.GetDecktopGroup(tp,dc)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local sg=g:FilterSelect(tp,s.filter,1,1,nil,e,tp)
	Duel.SpecialSummon(sg,0,tp,tp,true,false,POS_FACEUP)
	Duel.ShuffleDeck(tp)
end
function s.opd(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)==0 then return end
	local dc=Duel.TossDice(tp,1)
	local g=Duel.GetDecktopGroup(tp,dc)
	Duel.ConfirmCards(tp,g)
end