Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be Special Summoned from the Deck. You can Tribute Summon this card face-up by Tributing 1 Dinosaur-Type monster. Once per turn: You can change this card to face-down Defense Position. If this card is Flip Summoned: Change all other monsters on the field to face-down Defense Position. If this card is attacked, any battle damage your opponent takes from that battle is doubled.
--竜脚獣ブラキオン
--Sauropod Brachion
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+EFFECT_FLAG_SINGLE_RANGE)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetRange(LOCATION_DECK)
	e1:SetCode(EFFECT_SPSUMMON_CONDITION)
	c:RegisterEffect(e1)
	--Summon with 1 tribute
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetCode(EFFECT_SUMMON_PROC)
	e2:SetCondition(s.otcon)
	e2:SetTarget(s.ottg)
	e2:SetOperation(s.otop)
	e2:SetValue(SUMMON_TYPE_TRIBUTE)
	c:RegisterEffect(e2)
	--Change itself to face-down
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_POSITION)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_MZONE)
	e3:SetTarget(s.postg)
	e3:SetOperation(s.posop)
	c:RegisterEffect(e3)
	--position
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,1))
	e4:SetCategory(CATEGORY_POSITION)
	e4:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e4:SetCode(EVENT_FLIP_SUMMON_SUCCESS)
	e4:SetTarget(s.postg2)
	e4:SetOperation(s.posop2)
	c:RegisterEffect(e4)
	--Double damage
	local e5=Effect.CreateEffect(c)
	e5:SetType(EFFECT_TYPE_SINGLE)
	e5:SetRange(LOCATION_MZONE)
	e5:SetCode(EFFECT_CHANGE_BATTLE_DAMAGE)
	e5:SetCondition(s.dcon)
	e5:SetValue(aux.ChangeBattleDamage(1,DOUBLE_DAMAGE))
	c:RegisterEffect(e5)
end
function s.otcon(e,c)
	if c==nil then return true end
	return Duel.CheckReleaseGroup(c:GetControler(),Card.IsRace,1,false,1,true,c,c:GetControler(),nil,false,nil,RACE_DINOSAUR)
end
function s.ottg(e,tp,eg,ep,ev,re,r,rp,c)
	local g=Duel.SelectReleaseGroup(tp,Card.IsRace,1,1,false,true,true,c,nil,nil,false,nil,RACE_DINOSAUR)
	if g then
		g:KeepAlive()
		e:SetLabelObject(g)
	return true
	end
	return false
end
function s.otop(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.postg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return c:IsCanTurnSet() and c:GetFlagEffect(id)==0 end
	c:RegisterFlagEffect(id,RESET_EVENT|(RESETS_STANDARD_PHASE_END&~RESET_TURN_SET),0,1)
	Duel.SetOperationInfo(0,CATEGORY_POSITION,c,1,0,0)
end
function s.posop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and c:IsFaceup() then
		Duel.ChangePosition(c,POS_FACEDOWN_DEFENSE)
	end
end
function s.postg2(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	local g=Duel.GetMatchingGroup(Card.IsCanTurnSet,tp,LOCATION_MZONE,LOCATION_MZONE,e:GetHandler())
	Duel.SetOperationInfo(0,CATEGORY_POSITION,g,#g,0,0)
end
function s.posop2(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(Card.IsCanTurnSet,tp,LOCATION_MZONE,LOCATION_MZONE,e:GetHandler())
	Duel.ChangePosition(g,POS_FACEDOWN_DEFENSE)
end
function s.dcon(e)
	return Duel.GetAttackTarget()==e:GetHandler()
end