Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Equip only to a Thunder-Type monster. It gains 100 ATK for each Thunder-Type monster in your Graveyard. You can send this face-up card from the field to the Graveyard to have 1 face-up Thunder-Type monster you control gain 1000 ATK.
--エレキューブ
--Wattcube
local s,id=GetID()
function s.initial_effect(c)
	aux.AddEquipProcedure(c,nil,aux.FilterBoolFunction(Card.IsRace,RACE_THUNDER))
	--Atk up
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_EQUIP)
	e2:SetCode(EFFECT_UPDATE_ATTACK)
	e2:SetValue(s.val)
	c:RegisterEffect(e2)
	--atkup
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,0))
	e4:SetCategory(CATEGORY_ATKCHANGE)
	e4:SetType(EFFECT_TYPE_IGNITION)
	e4:SetRange(LOCATION_SZONE)
	e4:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e4:SetCost(Cost.SelfToGrave)
	e4:SetTarget(s.atktg)
	e4:SetOperation(s.atkop)
	c:RegisterEffect(e4)
end
function s.filter(c)
	return c:IsFaceup() and c:IsRace(RACE_THUNDER)
end
function s.val(e,c)
	return Duel.GetMatchingGroupCount(Card.IsRace,c:GetControler(),LOCATION_GRAVE,0,nil,RACE_THUNDER)*100
end
function s.atktg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,nil)
end
function s.atkop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and s.filter(tc) then
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		e1:SetValue(1000)
		tc:RegisterEffect(e1)
	end
end