Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Pay 2000 LP, then target 1 "Photon" monster in your GY; Special Summon both it and 1 "Galaxy" monster from your Deck, with the same Level, both in Defense Position, and if you do, each monster's ATK become 2000, also their effects are negated. You can only activate 1 "Galaxy Trance" per turn. You cannot Normal or Special Summon monsters during the turn you activate this card, except "Photon" and "Galaxy" monsters.
--銀河天翔
--Galaxy Trance
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	Duel.AddCustomActivityCounter(id,ACTIVITY_SUMMON,aux.FilterBoolFunction(Card.IsSetCard,{SET_PHOTON,SET_GALAXY}))
	Duel.AddCustomActivityCounter(id,ACTIVITY_SPSUMMON,aux.FilterBoolFunction(Card.IsSetCard,{SET_PHOTON,SET_GALAXY}))
end
s.listed_series={SET_PHOTON,SET_GALAXY}
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.CheckLPCost(tp,2000)
		and Duel.GetCustomActivityCount(id,tp,ACTIVITY_SUMMON)==0
		and Duel.GetCustomActivityCount(id,tp,ACTIVITY_SPSUMMON)==0 end
	Duel.PayLPCost(tp,2000)
	--Cannot Normal or Special Summon, except "Photon" and "Galaxy" monsters
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetDescription(aux.Stringid(id,1))
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET+EFFECT_FLAG_OATH+EFFECT_FLAG_CLIENT_HINT)
	e1:SetCode(EFFECT_CANNOT_SUMMON)
	e1:SetTargetRange(1,0)
	e1:SetTarget(function(e,c) return not c:IsSetCard({SET_PHOTON,SET_GALAXY}) end)
	e1:SetReset(RESET_PHASE|PHASE_END)
	Duel.RegisterEffect(e1,tp)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_CANNOT_SPECIAL_SUMMON)
	Duel.RegisterEffect(e2,tp)
end
function s.gyspfilter(c,e,tp)
	return c:IsSetCard(SET_PHOTON) and c:HasLevel() and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE)
		and Duel.IsExistingMatchingCard(s.dspfilter,tp,LOCATION_DECK,0,1,nil,e,tp,c:GetLevel())
end
function s.dspfilter(c,e,tp,lv)
	return c:IsSetCard(SET_GALAXY) and c:IsLevel(lv) and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.gyspfilter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>=2 and not Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT)
		and Duel.IsExistingTarget(s.gyspfilter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.gyspfilter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,2,tp,LOCATION_GRAVE|LOCATION_DECK)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<2 or Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then return end
	local tc=Duel.GetFirstTarget()
	if not (tc:IsRelateToEffect(e) and tc:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE)) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,s.dspfilter,tp,LOCATION_DECK,0,1,1,nil,e,tp,tc:GetLevel())
	if #g==0 then return end
	local c=e:GetHandler()
	for sc in (g+tc):Iter() do
		if Duel.SpecialSummonStep(sc,0,tp,tp,false,false,POS_FACEUP_DEFENSE) then
			--Its ATK becomes 2000
			local e1=Effect.CreateEffect(c)
			e1:SetType(EFFECT_TYPE_SINGLE)
			e1:SetCode(EFFECT_SET_ATTACK_FINAL)
			e1:SetValue(2000)
			e1:SetReset(RESET_EVENT|RESETS_STANDARD)
			sc:RegisterEffect(e1,true)
			--Negate its effects
			sc:NegateEffects(c)
		end
	end
	Duel.SpecialSummonComplete()
end