Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
1 Tuner + 1 or more non-Tuner Dinosaur-Type monsters This card's ATK and DEF are equal to the total original ATK of the Synchro Material Monsters used for its Synchro Summon. If this card attacks a face-down Defense Position monster, you can destroy the monster immediately with this card's effect without flipping it face-up or applying damage calculation.
--ジュラック・ヴェルヒプト
--Jurrac Velphito
local s,id=GetID()
function s.initial_effect(c)
	--synchro summon
	Synchro.AddProcedure(c,nil,1,1,Synchro.NonTunerEx(Card.IsRace,RACE_DINOSAUR),1,99)
	c:EnableReviveLimit()
	--Atk
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e1:SetCode(EVENT_SPSUMMON_SUCCESS)
	e1:SetOperation(s.valop)
	c:RegisterEffect(e1)
	--destroy
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_BATTLE_START)
	e2:SetCondition(s.descon)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
end
function s.valop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsSynchroSummoned() then return end
	local g=c:GetMaterial()
	local tc=g:GetFirst()
	local atk=0
	for tc in aux.Next(g) do
		local tatk=tc:GetTextAttack()
		if tatk<0 then tatk=0 end
		atk=atk+tatk
	end
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_SET_ATTACK)
	e1:SetValue(atk)
	e1:SetReset(RESET_EVENT|RESETS_STANDARD_DISABLE)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_SET_DEFENSE)
	c:RegisterEffect(e2)
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	local d=Duel.GetAttackTarget()
	return e:GetHandler()==Duel.GetAttacker() and d and d:IsPosition(POS_FACEDOWN_DEFENSE)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetAttackTarget():IsDestructable() end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,Duel.GetAttackTarget(),1,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local d=Duel.GetAttackTarget()
	if d:IsRelateToBattle() then
		Duel.Destroy(d,REASON_EFFECT)
	end
end