Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Target 1 "Destiny HERO" monster in your GY; Special Summon 1 "Destiny HERO" monster from your Deck whose Level is less than or equal to half of that target's Level, but destroy it during the End Phase of this turn.
--オーバー・デステニー
--Over Destiny
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
s.listed_series={SET_DESTINY_HERO}
function s.filter1(c,e,sp)
	local lv=math.floor(c:GetLevel()/2)
	return lv>0 and c:IsSetCard(SET_DESTINY_HERO)
		and Duel.IsExistingMatchingCard(s.filter2,sp,LOCATION_DECK,0,1,nil,lv,e,sp)
end
function s.filter2(c,lv,e,sp)
	return c:IsLevelBelow(lv) and c:IsSetCard(SET_DESTINY_HERO) and c:IsCanBeSpecialSummoned(e,0,sp,false,false)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.filter1(chkc,e,tp) end
	if chk==0 then return Duel.IsExistingTarget(s.filter1,tp,LOCATION_GRAVE,0,1,nil,e,tp)
		and Duel.GetLocationCount(tp,LOCATION_MZONE)>0 end
	Duel.Hint(HINT_SELECTMSG,tp,aux.Stringid(id,0))
	Duel.SelectTarget(tp,s.filter1,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	local tc=Duel.GetFirstTarget()
	if not tc or not tc:IsRelateToEffect(e) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local cg=Duel.SelectMatchingCard(tp,s.filter2,tp,LOCATION_DECK,0,1,1,nil,math.floor(tc:GetLevel()/2),e,tp)
	if #cg==0 then return end
	local sc=cg:GetFirst()
	Duel.SpecialSummon(cg,0,tp,tp,false,false,POS_FACEUP)
	--destroy
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_FIELD)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EVENT_PHASE+PHASE_END)
	e1:SetCountLimit(1)
	e1:SetReset(RESET_PHASE|PHASE_END|RESET_EVENT|RESETS_STANDARD)
	e1:SetOperation(s.des)
	sc:RegisterEffect(e1)
end
function s.des(e,tp,eg,ep,ev,re,r,rp)
	Duel.Destroy(e:GetHandler(),REASON_EFFECT)
end