Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2+ Level 4 monsters This Xyz Summoned card gains 500 ATK x the total Link Rating of Link Monsters linked to this card. You can detach 2 materials from this card, then target 1 Link-4 Cyberse Link Monster in your GY; Special Summon it to your field so it points to this card, also you cannot Special Summon other monsters or attack directly for the rest of this turn.
--ファイアウォール・X・ドラゴン
--Firewall eXceed Dragon
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	Xyz.AddProcedure(c,nil,4,2,nil,nil,Xyz.InfiniteMats)
	--atk gain
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCondition(s.atkcon)
	e1:SetValue(s.atkval)
	c:RegisterEffect(e1)
	--spsummon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCost(Cost.DetachFromSelf(2))
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsXyzSummoned()
end
function s.atkfilter(c,xc)
	return c:IsFaceup() and c:IsLinkMonster() and c:GetLinkedGroup():IsContains(xc)
end
function s.atkval(e,c)
	local g=Duel.GetMatchingGroup(s.atkfilter,e:GetHandlerPlayer(),LOCATION_MZONE,LOCATION_MZONE,nil,c)
	return g:GetSum(Card.GetLink)*500
end
function s.spfilter(c,e,tp,ec)
	local zone=ec:GetToBeLinkedZone(c,tp)
	return zone~=0 and c:IsLinkMonster() and c:IsRace(RACE_CYBERSE) and c:GetLink()==4
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP,tp,zone)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.spfilter(chkc,e,tp,e:GetHandler()) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.spfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp,e:GetHandler())
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if c:IsRelateToEffect(e) and tc:IsRelateToEffect(e) then
		local zone=c:GetToBeLinkedZone(tc,tp)
		if zone~=0 then
			Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP,zone)
		end
	end
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,1))
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CANNOT_SPECIAL_SUMMON)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET+EFFECT_FLAG_CLIENT_HINT)
	e1:SetTargetRange(1,0)
	e1:SetReset(RESET_PHASE|PHASE_END)
	Duel.RegisterEffect(e1,tp)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_CANNOT_DIRECT_ATTACK)
	e2:SetProperty(EFFECT_FLAG_OATH+EFFECT_FLAG_IGNORE_IMMUNE)
	e2:SetTargetRange(LOCATION_MZONE,0)
	e2:SetReset(RESET_PHASE|PHASE_END)
	Duel.RegisterEffect(e2,tp)
end