Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
4 "Ancient Gear" monsters Must be Fusion Summoned and cannot be Special Summoned by other ways. Unaffected by Spell/Trap effects. Your opponent's monsters cannot activate their effects during the Battle Phase. This card can attack all monsters your opponent controls, once each. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent.
--古代の機械混沌巨人
--Chaos Ancient Gear Giant
local s,id=GetID()
function s.initial_effect(c)
	--fusion material
	c:EnableReviveLimit()
	Fusion.AddProcMixN(c,true,true,aux.FilterBoolFunctionEx(Card.IsSetCard,SET_ANCIENT_GEAR),4)
	--special summon condition
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetCode(EFFECT_SPSUMMON_CONDITION)
	e1:SetValue(aux.fuslimit)
	c:RegisterEffect(e1)
	--immune
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e2:SetCode(EFFECT_IMMUNE_EFFECT)
	e2:SetRange(LOCATION_MZONE)
	e2:SetValue(s.efilter)
	c:RegisterEffect(e2)
	--activate limit
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e3:SetCode(EFFECT_CANNOT_ACTIVATE)
	e3:SetRange(LOCATION_MZONE)
	e3:SetTargetRange(0,1)
	e3:SetCondition(s.actcon)
	e3:SetValue(s.actlimit)
	c:RegisterEffect(e3)
	--attack all
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE)
	e4:SetCode(EFFECT_ATTACK_ALL)
	e4:SetValue(1)
	c:RegisterEffect(e4)
	--pierce
	local e5=Effect.CreateEffect(c)
	e5:SetType(EFFECT_TYPE_SINGLE)
	e5:SetCode(EFFECT_PIERCE)
	c:RegisterEffect(e5)
end
s.listed_series={SET_ANCIENT_GEAR}
s.material_setcode=SET_ANCIENT_GEAR
function s.efilter(e,te)
	return te:IsSpellTrapEffect()
end
function s.actcon(e)
	local ph=Duel.GetCurrentPhase()
	return Duel.IsBattlePhase()
end
function s.actlimit(e,re,tp)
	return re:IsMonsterEffect()
end