Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Cannot be destroyed by battle. If this card was Normal Summoned, during the Standby Phase of the Summoning player's next turn: You can Tribute this card; Special Summon up to 3 Level 4 or lower Reptile and/or Rock monsters from your hand and/or Deck, but banish them during the End Phase. (If you Special Summon 2 or more monsters, they must have the same name.) You can only use this effect of "Reptia Egg" once per turn.
--レプティア・エッグ
--Reptia Egg
--Scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
	e1:SetValue(1)
	c:RegisterEffect(e1)
	--Register
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e2:SetCode(EVENT_SUMMON_SUCCESS)
	e2:SetOperation(s.nsreg)
	c:RegisterEffect(e2)
	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_MZONE)
	e3:SetCode(EVENT_PHASE|PHASE_STANDBY)
	e3:SetCondition(s.spcon)
	e3:SetCost(Cost.SelfTribute)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	e3:SetLabelObject(e2)
	c:RegisterEffect(e3)
end
function s.nsreg(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if Duel.IsTurnPlayer(tp) and Duel.IsPhase(PHASE_STANDBY) then
		e:SetLabel(Duel.GetTurnCount())
		c:RegisterFlagEffect(id,RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_STANDBY|RESET_SELF_TURN,0,2)
	else
		e:SetLabel(0)
		c:RegisterFlagEffect(id,RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_STANDBY|RESET_SELF_TURN,0,1)
	end
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetLabelObject():GetLabel()~=Duel.GetTurnCount() and Duel.IsTurnPlayer(tp) and e:GetHandler():GetFlagEffect(id)>0
end
function s.filter(c,e,tp)
	return c:IsLevelBelow(4) and c:IsRace(RACE_ROCK|RACE_REPTILE) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK|LOCATION_HAND,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK|LOCATION_HAND)
end
function s.rescon(sg,e,tp,mg)
	return sg:GetClassCount(Card.GetCode)==1
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if ft<=0 then return end
	if ft>3 then ft=3 end
	if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then ft=1 end
	local g=Duel.GetMatchingGroup(s.filter,tp,LOCATION_DECK|LOCATION_HAND,0,nil,e,tp)
	local sg=aux.SelectUnselectGroup(g,e,tp,1,ft,s.rescon,1,tp,HINTMSG_SPSUMMON)
	if #sg>0 then
		local fid=e:GetHandler():GetFieldID()
		for tc in aux.Next(sg) do
			Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP)
			tc:RegisterFlagEffect(id+1,RESETS_STANDARD_PHASE_END,0,1,fid)
		end
		Duel.SpecialSummonComplete()
		sg:KeepAlive()
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		e1:SetCode(EVENT_PHASE+PHASE_END)
		e1:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
		e1:SetCountLimit(1)
		e1:SetLabel(fid)
		e1:SetLabelObject(sg)
		e1:SetCondition(s.rmcon)
		e1:SetOperation(s.rmop)
		Duel.RegisterEffect(e1,tp)
	end
end
function s.rmfilter(c,fid)
	return c:GetFlagEffectLabel(id+1)==fid
end
function s.rmcon(e,tp,eg,ep,ev,re,r,rp)
	local g=e:GetLabelObject()
	if not g:IsExists(s.rmfilter,1,nil,e:GetLabel()) then
		g:DeleteGroup()
		e:Reset()
		return false
	else return true end
end
function s.rmop(e,tp,eg,ep,ev,re,r,rp)
	local g=e:GetLabelObject()
	local tg=g:Filter(s.rmfilter,nil,e:GetLabel())
	Duel.Remove(tg,POS_FACEUP,REASON_EFFECT)
end