Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Your opponent cannot target face-up Attack Position monsters with 0 ATK for attacks.
--ゼロゼロック
--Zerozerock
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--atklimit
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_CANNOT_SELECT_BATTLE_TARGET)
	e2:SetRange(LOCATION_SZONE)
	e2:SetTargetRange(0,LOCATION_MZONE)
	e2:SetValue(s.target)
	c:RegisterEffect(e2)
end
function s.target(e,c)
	return c:IsPosition(POS_FACEUP_ATTACK) and c:GetAttack()==0
end