--冥骸融合－メメント・フュージョン
local s,id,o=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_FUSION_SUMMON+CATEGORY_TODECK)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DESTROY+CATEGORY_SEARCH+CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,id+o)
	e2:SetCost(aux.bfgcost)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
	if not s.global_check then
		s.global_check=true
		local ge1=Effect.CreateEffect(c)
		ge1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge1:SetCode(EVENT_DESTROYED)
		ge1:SetCondition(s.regcon)
		ge1:SetOperation(s.regop)
		Duel.RegisterEffect(ge1,0)
	end
end
function s.spcfilter1(c)
	return c:IsReason(REASON_EFFECT) and c:IsType(TYPE_MONSTER)
end
function s.spcfilter2(c,tp)
	return c:IsReason(REASON_EFFECT) and c:IsType(TYPE_MONSTER)
		and c:IsPreviousControler(tp)
end
function s.regcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(s.spcfilter1,1,nil)
end
function s.regop(e,tp,eg,ep,ev,re,r,rp)
	if eg:IsExists(s.spcfilter2,1,nil,0) then
		Duel.RegisterFlagEffect(0,id,RESET_PHASE+PHASE_END,EFFECT_FLAG_OATH,1)
	end
	if eg:IsExists(s.spcfilter2,1,nil,1) then
		Duel.RegisterFlagEffect(1,id,RESET_PHASE+PHASE_END,EFFECT_FLAG_OATH,1)
	end
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	local ph=Duel.GetCurrentPhase()
	return (ph==PHASE_MAIN1 or ph==PHASE_MAIN2)
end
function s.filter1(c,e)
	return c:IsSetCard(0x1a1) and c:IsType(TYPE_MONSTER) and c:IsAbleToDeck() and c:IsCanBeFusionMaterial() and not c:IsImmuneToEffect(e)
end
function s.filter2(c,e)
	return not c:IsImmuneToEffect(e)
end
function s.spfilter(c,e,tp,m,f,chkf)
	return (not f or f(c))
		and c:IsCanBeSpecialSummoned(e,SUMMON_TYPE_FUSION,tp,false,false) and c:CheckFusionMaterial(m,nil,chkf)
end
function s.exfilter(c,tp)
	return c:IsControler(tp) and c:IsLocation(LOCATION_GRAVE)
end
function s.fcheck(tp,sg,fc)
	if Duel.GetFlagEffect(tp,id)~=0 then
		return sg:IsExists(Card.IsSetCard,1,nil,0x1a1)
	else
		return sg:IsExists(Card.IsSetCard,1,nil,0x1a1) and not sg:IsExists(s.exfilter,1,nil,tp)
	end
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		local chkf=tp
		local mg1=Duel.GetFusionMaterial(tp):Filter(s.filter2,nil,e)
		local mg2=Duel.GetMatchingGroup(s.filter1,tp,LOCATION_GRAVE,0,nil,e)
		if Duel.GetFlagEffect(tp,id)~=0 then
			mg1:Merge(mg2)
		end
		aux.FCheckAdditional=s.fcheck
		local res=Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_EXTRA,0,1,nil,e,tp,mg1,nil,chkf)
		if not res then
			local ce=Duel.GetChainMaterial(tp)
			if ce~=nil then
				local fgroup=ce:GetTarget()
				local mg3=fgroup(ce,e,tp)
				local mf=ce:GetValue()
				res=Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_EXTRA,0,1,nil,e,tp,mg3,mf,chkf)
			end
		end
		aux.FCheckAdditional=nil
		return res
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_EXTRA)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,nil,0,tp,LOCATION_GRAVE)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local chkf=tp
	local mg1=Duel.GetFusionMaterial(tp):Filter(s.filter2,nil,e)
	local mg2=Duel.GetMatchingGroup(aux.NecroValleyFilter(s.filter1),tp,LOCATION_GRAVE,0,nil,e)
	if Duel.GetFlagEffect(tp,id)~=0 then
		mg1:Merge(mg2)
	end
	aux.FCheckAdditional=s.fcheck
	local sg1=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_EXTRA,0,nil,e,tp,mg1,nil,chkf)
	local mg3=nil
	local sg2=nil
	local ce=Duel.GetChainMaterial(tp)
	if ce~=nil then
		local fgroup=ce:GetTarget()
		mg3=fgroup(ce,e,tp)
		local mf=ce:GetValue()
		sg2=Duel.GetMatchingGroup(s.spfilter,tp,LOCATION_EXTRA,0,nil,e,tp,mg3,mf,chkf)
	end
	if sg1:GetCount()>0 or (sg2~=nil and sg2:GetCount()>0) then
		local sg=sg1:Clone()
		if sg2 then sg:Merge(sg2) end
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local tg=sg:Select(tp,1,1,nil)
		local tc=tg:GetFirst()
		if sg1:IsContains(tc) and (sg2==nil or not sg2:IsContains(tc) or not Duel.SelectYesNo(tp,ce:GetDescription())) then
			local mat1=Duel.SelectFusionMaterial(tp,tc,mg1,nil,chkf)
			tc:SetMaterial(mat1)
			local mat2=mat1:Filter(Card.IsLocation,nil,LOCATION_GRAVE)
			mat1:Sub(mat2)
			Duel.SendtoGrave(mat1,REASON_EFFECT+REASON_MATERIAL+REASON_FUSION)
			Duel.SendtoDeck(mat2,nil,2,REASON_EFFECT+REASON_MATERIAL+REASON_FUSION)
			Duel.BreakEffect()
			Duel.SpecialSummon(tc,SUMMON_TYPE_FUSION,tp,tp,false,false,POS_FACEUP)
		else
			local mat2=Duel.SelectFusionMaterial(tp,tc,mg3,nil,chkf)
			local fop=ce:GetOperation()
			fop(ce,e,tp,tc,mat2)
		end
		tc:CompleteProcedure()
	end
	aux.FCheckAdditional=nil
end
function s.filter(c)
	return c:IsSetCard(0x1a1) and c:IsType(TYPE_SPELL+TYPE_TRAP) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	local g=Duel.GetMatchingGroup(Card.IsFaceup,tp,LOCATION_MZONE,0,nil)
	if chk==0 then return #g>0 and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectMatchingCard(tp,Card.IsFaceup,tp,LOCATION_MZONE,0,1,1,nil)
	if Duel.Destroy(g,REASON_EFFECT)<1 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local sg=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(sg,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,sg)
	end
end