Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When you Synchro Summon "Stardust Dragon": You can Special Summon this card from your GY in Attack Position. Each turn, the first time this card would be destroyed by battle, it is not destroyed.
--スターダスト・シャオロン
--Stardust Xiaolong
local s,id=GetID()
function s.initial_effect(c)
	--spsummon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetRange(LOCATION_GRAVE)
	e1:SetCode(EVENT_SPSUMMON_SUCCESS)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--battle indes
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCode(EFFECT_INDESTRUCTABLE_COUNT)
	e2:SetCountLimit(1)
	e2:SetValue(s.valcon)
	c:RegisterEffect(e2)
end
s.listed_names={CARD_STARDUST_DRAGON}
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	local tc=eg:GetFirst()
	return tc:IsControler(tp) and tc:IsCode(CARD_STARDUST_DRAGON) and tc:IsSynchroSummoned()
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 e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP_ATTACK)
	end
end
function s.valcon(e,re,r,rp)
	return (r&REASON_BATTLE)~=0
end