Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Gains 500 ATK/DEF for each Machine monster you control. If 2 or more Machine monsters are Special Summoned at the same time, while this card is in your GY (except during the Damage Step): You can Special Summon this card.
--ブンボーグ001
--Deskbot 001
local s,id=GetID()
function s.initial_effect(c)
	--atk/def
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetValue(s.atkval)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_UPDATE_DEFENSE)
	c:RegisterEffect(e2)
	--spsummon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,0))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	e3:SetCondition(s.spcon)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
end
function s.atkval(e,c)
	return Duel.GetMatchingGroupCount(aux.FaceupFilter(Card.IsRace,RACE_MACHINE),c:GetControler(),LOCATION_MZONE,0,nil)*500
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(aux.FaceupFilter(Card.IsRace,RACE_MACHINE),2,nil)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():IsRelateToEffect(e) and Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)
	end
end