Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Activate only if you control a "Number" monster. "Number" monsters on the field cannot be destroyed by card effects, and cannot be destroyed by battle except with another "Number" monster. When a "Number" monster you control is destroyed, destroy this card.
--ナンバーズ・ウォール
--Number Wall
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)
	e1:SetCondition(s.actcon)
	c:RegisterEffect(e1)
	--indes
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
	e2:SetRange(LOCATION_SZONE)
	e2:SetTargetRange(LOCATION_MZONE,LOCATION_MZONE)
	e2:SetTarget(aux.TargetBoolFunction(Card.IsSetCard,SET_NUMBER))
	e2:SetValue(s.indval)
	c:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	e3:SetRange(LOCATION_SZONE)
	e3:SetTargetRange(LOCATION_MZONE,LOCATION_MZONE)
	e3:SetTarget(aux.TargetBoolFunction(Card.IsSetCard,SET_NUMBER))
	e3:SetValue(1)
	c:RegisterEffect(e3)
	--destroy
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_FIELD)
	e4:SetRange(LOCATION_SZONE)
	e4:SetCode(EVENT_DESTROYED)
	e4:SetCondition(s.descon)
	e4:SetOperation(s.desop)
	c:RegisterEffect(e4)
end
s.listed_series={SET_NUMBER}
function s.indval(e,c)
	return not c:IsSetCard(SET_NUMBER)
end
function s.actcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsSetCard,SET_NUMBER),tp,LOCATION_MZONE,0,1,nil)
end
function s.dfilter(c,tp)
	return c:IsPreviousControler(tp) and c:IsPreviousLocation(LOCATION_MZONE) and c:IsPreviousPosition(POS_FACEUP) and c:IsPreviousSetCard(SET_NUMBER)
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.dfilter,1,nil,tp)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Destroy(e:GetHandler(),REASON_EFFECT)
end