Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 Level 9 monsters During your Main Phase 1, if your opponent controls a monster with higher ATK than this card: You can detach 1 material from this card; this card can attack directly this turn. Once per battle, during the Battle Step, if this card with material is being attacked (Quick Effect): You can negate that attack. When this card is targeted for an attack while it has no material: You can target 2 monsters in your GY; attach those monsters to this card as material. * The above text is unofficial and describes the card's functionality in the OCG.
--No.9 天蓋星ダイソン・スフィア
--Number 9: Dyson Sphere
local s,id=GetID()
function s.initial_effect(c)
	--xyz summon
	Xyz.AddProcedure(c,nil,9,2)
	c:EnableReviveLimit()
	--negate attack
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_QUICK_O)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetRange(LOCATION_MZONE)
	e1:SetHintTiming(0,TIMING_BATTLE_PHASE)
	e1:SetCondition(s.atkcon)
	e1:SetCost(s.atkcost)
	e1:SetOperation(s.atkop)
	c:RegisterEffect(e1)
	--material
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_BE_BATTLE_TARGET)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetCondition(s.olcon)
	e2:SetTarget(s.oltg)
	e2:SetOperation(s.olop)
	c:RegisterEffect(e2)
	--direct attack
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCountLimit(1)
	e3:SetCondition(s.dacon)
	e3:SetCost(Cost.DetachFromSelf(1))
	e3:SetOperation(s.daop)
	c:RegisterEffect(e3)
end
s.xyz_number=9
function s.atkcon(e,tp,eg,ep,ev,re,r,rp)
	local at=Duel.GetAttacker()
	if at and at:IsStatus(STATUS_ATTACK_CANCELED) then return false end
	local c=e:GetHandler()
	return c==Duel.GetAttackTarget() and c:GetOverlayCount()>0
end
function s.atkcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():GetFlagEffect(id)==0 end
	e:GetHandler():RegisterFlagEffect(id,RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_DAMAGE,0,1)
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	Duel.NegateAttack()
end
function s.olcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():GetOverlayCount()==0 and e:GetHandler():IsType(TYPE_XYZ)
end
function s.oltg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and chkc:IsMonster() end
	if chk==0 then return e:GetHandler():IsType(TYPE_XYZ) 
		and Duel.IsExistingTarget(Card.IsMonster,tp,LOCATION_GRAVE,0,2,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	local g=Duel.SelectTarget(tp,Card.IsMonster,tp,LOCATION_GRAVE,0,2,2,nil)
	Duel.SetOperationInfo(0,CATEGORY_LEAVE_GRAVE,g,2,0,0)
end
function s.olop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then
		local g=Duel.GetTargetCards(e)
		if #g>0 then
			Duel.Overlay(c,g)
		end
	end
end
function s.dafilter(c,atk)
	return c:IsFaceup() and c:GetAttack()>atk
end
function s.dacon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsPhase(PHASE_MAIN1)
		and Duel.IsExistingMatchingCard(s.dafilter,tp,0,LOCATION_MZONE,1,nil,e:GetHandler():GetAttack())
end
function s.daop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsFaceup() and c:IsRelateToEffect(e) then
		--Direct attack
		local e1=Effect.CreateEffect(c)
		e1:SetDescription(3205)
		e1:SetProperty(EFFECT_FLAG_CLIENT_HINT+EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_DIRECT_ATTACK)
		e1:SetReset(RESETS_STANDARD_PHASE_END)
		c:RegisterEffect(e1)
	end
end