Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is Normal Summoned, it is changed to Defense Position. If you have no cards in your hand, this card gains the following effect: Once per turn, you can select 1 "Infernity" monster in your Graveyard, except "Infernity Necromancer", and Special Summon it.
--インフェルニティ・ネクロマンサー
--Infernity Necromancer
local s,id=GetID()
function s.initial_effect(c)
	--to defense
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_POSITION)
	e1:SetType(EFFECT_TYPE_TRIGGER_F+EFFECT_TYPE_SINGLE)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetTarget(s.potg)
	e1:SetOperation(s.poop)
	c:RegisterEffect(e1)
	--special summon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetCountLimit(1)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_INFERNITY}
function s.potg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chk==0 then return e:GetHandler():IsAttackPos() end
	Duel.SetOperationInfo(0,CATEGORY_POSITION,e:GetHandler(),1,0,0)
end
function s.poop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsFaceup() and c:IsAttackPos() and c:IsRelateToEffect(e) then
		Duel.ChangePosition(c,POS_FACEUP_DEFENSE)
	end
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return not e:GetHandler():IsDisabled() and Duel.GetFieldGroupCount(tp,LOCATION_HAND,0)==0
end
function s.filter(c,e,tp)
	return c:IsSetCard(SET_INFERNITY) and c:GetCode()~=id and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.filter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end