--希望の天啓
--Revelation of Hope
local s,id=GetID()
function s.initial_effect(c)
	--spsummon
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCost(s.cost)
	e1:SetTarget(s.tg)
	e1:SetOperation(s.op)
	c:RegisterEffect(e1)
end
function s.cfilter(c,e,tp)
	return c:IsRace(RACE_DRAGON) and not c:IsType(TYPE_XYZ) and c:GetLevel()>0 and c:IsAbleToGraveAsCost()
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_EXTRA,0,1,nil,e,tp,c:GetLevel(),tc)
end
function s.spfilter(c,e,tp,lv,tc)
	return c:IsRank(lv) and c:IsCanBeSpecialSummoned(e,SUMMON_TYPE_XYZ,tp,false,false)
		and Duel.GetLocationCountFromEx(tp,tp,tc,c)>0
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	e:SetLabel(1)
	if chk==0 then return true end
end
function s.tg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		if e:GetLabel()~=1 then return false end
		e:SetLabel(0)
		local pg=aux.GetMustBeMaterialGroup(tp,Group.CreateGroup(),tp,nil,nil,REASON_XYZ)
		return #pg<=0 and Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_MZONE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.cfilter,tp,LOCATION_MZONE,0,1,1,nil,e,tp)
	Duel.SetTargetParam(g:GetFirst():GetLevel())
	Duel.SendtoGrave(g,REASON_COST)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_EXTRA)
end
function s.op(e,tp,eg,ep,ev,re,r,rp)
	local pg=aux.GetMustBeMaterialGroup(tp,Group.CreateGroup(),tp,nil,nil,REASON_XYZ)
	if #pg>0 then return end
	local lv=Duel.GetChainInfo(0,CHAININFO_TARGET_PARAM)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local sc=Duel.SelectMatchingCard(tp,s.spfilter,tp,LOCATION_EXTRA,0,1,1,nil,e,tp,lv):GetFirst()
	if sc and Duel.SpecialSummon(sc,SUMMON_TYPE_XYZ,tp,tp,false,false,POS_FACEUP)>0 then
		sc:CompleteProcedure()
	end
end