Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Gains 300 ATK for each banished card. You can only use each of the following effects of "Gandora-G the Dragon of Destruction" once per turn. If you control "Shining Sarcophagus": You can Special Summon this card from your hand. You can pay half your LP; destroy as many other cards on the field as possible, and if you do, banish them, then Special Summon 1 Level 7 or lower monster that mentions "Shining Sarcophagus" from your Deck, and increase its Level by the number of cards destroyed by this effect.
--破壊竜ガンドラG
--Gandora-G the Dragon of Destruction
--Scripted by Larry126
local s,id=GetID()
function s.initial_effect(c)
	--Gains 300 ATK for each banished card
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetRange(LOCATION_MZONE)
	e1:SetValue(function() return Duel.GetFieldGroupCount(0,LOCATION_REMOVED,LOCATION_REMOVED)*300 end)
	c:RegisterEffect(e1)
	--Special Summon this card from your hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_HAND)
	e2:SetCountLimit(1,id)
	e2:SetCondition(s.spcon)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
	--Destroy as many other cards on the field as possible
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetCategory(CATEGORY_DESTROY+CATEGORY_REMOVE+CATEGORY_SPECIAL_SUMMON+CATEGORY_LVCHANGE)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCountLimit(1,{id,1})
	e3:SetCost(s.descost)
	e3:SetTarget(s.destg)
	e3:SetOperation(s.desop)
	c:RegisterEffect(e3)
end
s.listed_names={CARD_SHINING_SARCOPHAGUS}
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsCode,CARD_SHINING_SARCOPHAGUS),tp,LOCATION_ONFIELD,0,1,nil)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and c:IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,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
function s.descost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.PayLPCost(tp,math.floor(Duel.GetLP(tp)/2))
end
function s.spfilter(c,e,tp)
	return c:IsLevelBelow(7) and c:ListsCode(CARD_SHINING_SARCOPHAGUS) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	local rg=Duel.GetMatchingGroup(Card.IsAbleToRemove,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,e:GetHandler())
	if chk==0 then return #rg>0 and Duel.GetMZoneCount(tp,rg)>0
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_DECK,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,rg,#rg,0,0)
	Duel.SetOperationInfo(0,CATEGORY_REMOVE,rg,#rg,0,0)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local exc=c:IsRelateToEffect(e) and c or nil
	local rg=Duel.GetMatchingGroup(nil,tp,LOCATION_ONFIELD,LOCATION_ONFIELD,exc)
	local ct=Duel.Destroy(rg,REASON_EFFECT,LOCATION_REMOVED)
	if ct==0 or Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local sc=Duel.SelectMatchingCard(tp,s.spfilter,tp,LOCATION_DECK,0,1,1,nil,e,tp):GetFirst()
	if not sc then return end
	Duel.BreakEffect()
	if Duel.SpecialSummonStep(sc,0,tp,tp,false,false,POS_FACEUP) then
		--Increase its Level by the number of cards destroyed by this effect
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetCode(EFFECT_UPDATE_LEVEL)
		e1:SetValue(ct)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		sc:RegisterEffect(e1)
	end
	Duel.SpecialSummonComplete()
end