Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by Tributing 1 "Dark Magician", and cannot be Special Summoned by other ways. Each time a Normal Spell Card is activated, inflict 1000 damage to your opponent immediately after it resolves.
--黒魔導の執行官
--Dark Eradicator Warlock
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--cannot special summon
	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.FALSE)
	c:RegisterEffect(e1)
	--special summon
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_SPSUMMON_PROC)
	e2:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e2:SetRange(LOCATION_HAND)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
	--damage
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_FIELD)
	e3:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e3:SetCode(EVENT_CHAINING)
	e3:SetRange(LOCATION_MZONE)
	e3:SetOperation(aux.chainreg)
	c:RegisterEffect(e3)
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,0))
	e4:SetCategory(CATEGORY_DAMAGE)
	e4:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e4:SetCode(EVENT_CHAIN_SOLVED)
	e4:SetRange(LOCATION_MZONE)
	e4:SetCondition(s.dmgcon)
	e4:SetOperation(s.dmgop)
	c:RegisterEffect(e4)
end
s.listed_names={CARD_DARK_MAGICIAN}
function s.spcon(e,c)
	if c==nil then return true end
	return Duel.CheckReleaseGroup(c:GetControler(),Card.IsCode,1,false,1,true,c,c:GetControler(),nil,false,nil,CARD_DARK_MAGICIAN)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,c)
	local g=Duel.SelectReleaseGroup(tp,Card.IsCode,1,1,false,true,true,c,nil,nil,false,nil,CARD_DARK_MAGICIAN)
	if g then
		g:KeepAlive()
		e:SetLabelObject(g)
	return true
	end
	return false
end
function s.spop(e,tp,eg,ep,ev,re,r,rp,c)
	local g=e:GetLabelObject()
	if not g then return end
	Duel.Release(g,REASON_COST)
	g:DeleteGroup()
end
function s.dmgcon(e,tp,eg,ep,ev,re,r,rp)
	return re:GetActiveType()==TYPE_SPELL and re:IsHasType(EFFECT_TYPE_ACTIVATE) and e:GetHandler():GetFlagEffect(1)>0
end
function s.dmgop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Damage(1-tp,1000,REASON_EFFECT)
end