--星宵竜転
--Seishou Ruten
--coded by Lyris
local s,id,o=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOEXTRA+CATEGORY_SPECIAL_SUMMON+CATEGORY_GRAVE_SPSUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id+EFFECT_COUNT_CODE_OATH)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.filter(c)
	return c:IsFaceup() and c:IsType(TYPE_FUSION+TYPE_SYNCHRO+TYPE_XYZ+TYPE_LINK) and c:IsAbleToExtra()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,LOCATION_MZONE,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOEXTRA,g,1,0,0)
end
function s.sfilter(c,e,tp,f)
	return f(c) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if not (tc:IsRelateToEffect(e) and Duel.SendtoDeck(tc,nil,SEQ_DECKTOP,REASON_EFFECT)>0
		and tc:IsLocation(LOCATION_EXTRA) and Duel.GetLocationCount(tp,LOCATION_MZONE)>0) then return end
	local f=aux.FALSE
	local typ=tc:GetType()&TYPE_FUSION+TYPE_SYNCHRO+TYPE_XYZ+TYPE_LINK
	if typ==TYPE_FUSION then f=aux.FilterEqualFunction(Card.GetAttribute,tc:GetAttribute())
	elseif typ==TYPE_SYNCHRO then f=aux.FilterBoolFunction(Card.IsLevelBelow,tc:GetLevel()-1)
	elseif typ==TYPE_XYZ then f=aux.FilterBoolFunction(Card.IsLevel,tc:GetRank())
	elseif typ==TYPE_LINK then f=aux.FilterEqualFunction(Card.GetRace,tc:GetRace()) end
	local g=Duel.GetMatchingGroup(s.sfilter,tp,LOCATION_GRAVE,LOCATION_GRAVE,nil,e,tp,f)
	if #g>0 and Duel.SelectYesNo(tp,aux.Stringid(id,1)) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local sg=g:Select(tp,1,1,nil)
		Duel.BreakEffect()
		Duel.SpecialSummon(sg,0,tp,tp,false,false,POS_FACEUP)
	end
end
