Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Ritual Summon this card with "Machine Angel Ritual". Once per turn: You can target 1 face-up monster you control; gain LP equal to half its ATK. When a Ritual Monster you control is targeted for an attack: You can negate the attack. If this card is in the Graveyard: You can banish 1 other "Cyber Angel" monster from your Graveyard, then target 1 monster your opponent controls; Special Summon this card, and if you do, take control of that monster.
--サイバー・エンジェル－那沙帝弥－
--Cyber Angel Natasha
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--recover
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_RECOVER)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1)
	e1:SetTarget(s.rectg)
	e1:SetOperation(s.recop)
	c:RegisterEffect(e1)
	--negate attack
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_BE_BATTLE_TARGET)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCondition(s.negcon)
	e2:SetOperation(s.negop)
	c:RegisterEffect(e2)
	--special summon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_CONTROL)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetCost(s.cost)
	e3:SetTarget(s.target)
	e3:SetOperation(s.operation)
	c:RegisterEffect(e3)
end
s.listed_series={SET_CYBER_ANGEL}
s.listed_names={39996157}
function s.recfilter(c)
	return c:IsFaceup() and c:GetAttack()>0
end
function s.rectg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_MZONE) and s.recfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.recfilter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	local g=Duel.SelectTarget(tp,s.recfilter,tp,LOCATION_MZONE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_RECOVER,nil,0,tp,g:GetFirst():GetAttack()/2)
end
function s.recop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsFaceup() and tc:GetAttack()>0 then
		Duel.Recover(tp,tc:GetAttack()/2,REASON_EFFECT)
	end
end
function s.negcon(e,tp,eg,ep,ev,re,r,rp)
	local d=Duel.GetAttackTarget()
	return d and d:IsControler(tp) and d:IsFaceup() and d:IsType(TYPE_RITUAL)
end
function s.negop(e,tp,eg,ep,ev,re,r,rp)
	Duel.NegateAttack()
end
function s.cfilter(c,tp)
	return c:IsSetCard(SET_CYBER_ANGEL) and c:IsAbleToRemoveAsCost() and c:IsMonster() and aux.SpElimFilter(c,true) 
		and (Duel.GetLocationCount(tp,LOCATION_MZONE)>0 or (c:IsLocation(LOCATION_MZONE) and c:GetSequence()<5))
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_GRAVE,0,1,e:GetHandler(),tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
	local g=Duel.SelectMatchingCard(tp,s.cfilter,tp,LOCATION_GRAVE,0,1,1,e:GetHandler(),tp)
	Duel.Remove(g,POS_FACEUP,REASON_COST)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(1-tp) and chkc:IsAbleToChangeControler() end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE,tp,LOCATION_REASON_CONTROL)>0
		and Duel.GetLocationCount(tp,LOCATION_MZONE,tp,0)>1
		and Duel.IsExistingTarget(Card.IsAbleToChangeControler,tp,0,LOCATION_MZONE,1,nil)
		and e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_CONTROL)
	local g=Duel.SelectTarget(tp,Card.IsAbleToChangeControler,tp,0,LOCATION_MZONE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_CONTROL,g,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if c:IsRelateToEffect(e) and Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)>0
		and tc and tc:IsRelateToEffect(e) then
		Duel.GetControl(tc,tp)
	end
end