Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be Special Summoned. You can Tribute Summon this card by Tributing 1 monster. This card gains the total original ATK and DEF of the monster(s) Tributed for its Tribute Summon. When this card is Tribute Summoned: Target 1 Effect Monster in the Graveyard that was Tributed for the Tribute Summon; this card's name becomes that target's name, and this card gains that target's effects.
--Ｔｈｅ ｔｙｒａｎｔ ＮＥＰＴＵＮＥ
--The Tyrant Neptune
local s,id=GetID()
function s.initial_effect(c)
	--cannot special summon
	local e1=Effect.CreateEffect(c)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_SPSUMMON_CONDITION)
	e1:SetValue(aux.FALSE)
	c:RegisterEffect(e1)
	--summon/set with 1 tribute
	local e2=aux.AddNormalSummonProcedure(c,true,true,1,1,SUMMON_TYPE_TRIBUTE,aux.Stringid(id,0))
	local e3=aux.AddNormalSetProcedure(c,true,true,1,1,SUMMON_TYPE_TRIBUTE,aux.Stringid(id,0))
	--tribute check
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE)
	e4:SetCode(EFFECT_MATERIAL_CHECK)
	e4:SetValue(s.valcheck)
	c:RegisterEffect(e4)
	--give atk effect only when  summon
	local e5=Effect.CreateEffect(c)
	e5:SetType(EFFECT_TYPE_SINGLE)
	e5:SetCode(EFFECT_SUMMON_COST)
	e5:SetOperation(s.facechk)
	e5:SetLabelObject(e4)
	c:RegisterEffect(e5)
	--copy
	local e6=Effect.CreateEffect(c)
	e6:SetDescription(aux.Stringid(id,1))
	e6:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e6:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e6:SetCode(EVENT_SUMMON_SUCCESS)
	e6:SetCondition(s.copycon)
	e6:SetTarget(s.copytg)
	e6:SetOperation(s.copyop)
	c:RegisterEffect(e6)
end
function s.valcheck(e,c)
	local g=c:GetMaterial()
	local tc=g:GetFirst()
	local atk=0
	local def=0
	for tc in aux.Next(g) do
		local catk=tc:GetTextAttack()
		local cdef=tc:GetTextDefense()
		atk=atk+(catk>=0 and catk or 0)
		def=def+(cdef>=0 and cdef or 0)
	end
	if e:GetLabel()==1 then
		e:SetLabel(0)
		--atk continuous effect
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
		e1:SetRange(LOCATION_MZONE)
		e1:SetValue(atk)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD_DISABLE&~RESET_TOFIELD)
		c:RegisterEffect(e1)
		--def continuous effect
		local e2=e1:Clone()
		e2:SetCode(EFFECT_UPDATE_DEFENSE)
		e2:SetValue(def)
		c:RegisterEffect(e2)
	end
end
function s.facechk(e,tp,eg,ep,ev,re,r,rp)
	e:GetLabelObject():SetLabel(1)
end
function s.copycon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsTributeSummoned()
end
function s.filter(c,e)
	return c:IsType(TYPE_EFFECT) and c:IsLocation(LOCATION_GRAVE) and c:IsCanBeEffectTarget(e)
end
function s.copytg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return e:GetHandler():GetMaterial():IsContains(chkc) and s.filter(chkc,e) end
	if chk==0 then return true end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	local g=e:GetHandler():GetMaterial():FilterSelect(tp,s.filter,1,1,nil,e)
	Duel.SetTargetCard(g)
end
function s.copyop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsRelateToEffect(e) and c:IsRelateToEffect(e) and c:IsFaceup() then
		local code=tc:GetOriginalCode()
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		e1:SetCode(EFFECT_CHANGE_CODE)
		e1:SetValue(code)
		c:RegisterEffect(e1)
		c:CopyEffect(code,RESET_EVENT|RESETS_STANDARD,1)
	end
end