--六武式襲雙陣
local s,id,o=GetID()
function s.initial_effect(c)
	--activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_GRAVE_SPSUMMON+CATEGORY_POSITION)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(0,TIMINGS_CHECK_MONSTER+TIMING_END_PHASE)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--add to hand
	local e2=Effect.CreateEffect(c)
	e2:SetCategory(CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,id)
	e2:SetCost(aux.bfgcost)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
end
function s.spfilter(c,e,tp)
	return c:IsAttackBelow(2000) and c:IsSetCard(0x3d) and c:IsType(TYPE_MONSTER) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.posfilter(c)
	return c:IsFaceup() and c:IsAttackBelow(2000) and c:IsCanTurnSet()
end
function s.bfilter(c)
	return c:IsSetCard(0x3d) and c:IsFaceup()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_GRAVE+LOCATION_HAND,0,1,nil,e,tp)
		or Duel.IsExistingMatchingCard(s.posfilter,tp,0,LOCATION_MZONE,1,nil) end
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local b1=Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(aux.NecroValleyFilter(s.spfilter),tp,LOCATION_GRAVE+LOCATION_HAND,0,1,nil,e,tp)
	local b2=Duel.IsExistingMatchingCard(s.posfilter,tp,0,LOCATION_MZONE,1,nil)
	local off=1
	local ops={}
	local opval={}
	if b1 then
		ops[off]=aux.Stringid(id,0)
		opval[off-1]=1
		off=off+1
	end
	if b2 then
		ops[off]=aux.Stringid(id,1)
		opval[off-1]=2
		off=off+1
	end
	if b1 and b2 and Duel.IsExistingMatchingCard(s.bfilter,tp,LOCATION_MZONE,0,2,nil) then
		ops[off]=aux.Stringid(id,2)
		opval[off-1]=3
		off=off+1
	end
	if off==1 then return end
	local op=Duel.SelectOption(tp,table.unpack(ops))
	if opval[op]==1 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.spfilter),tp,LOCATION_GRAVE+LOCATION_HAND,0,1,1,nil,e,tp)
		if g:GetCount()>0 then
			Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
		end
	elseif opval[op]==2 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
		local g=Duel.SelectMatchingCard(tp,s.posfilter,tp,0,LOCATION_MZONE,1,1,nil)
		local tc=g:GetFirst()
		if tc then
			Duel.HintSelection(g)
			Duel.ChangePosition(tc,POS_FACEDOWN_DEFENSE)
		end
	elseif opval[op]==3 then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.spfilter),tp,LOCATION_GRAVE+LOCATION_HAND,0,1,1,nil,e,tp)
		if g:GetCount()>0 then Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP) end
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
		local cg=Duel.SelectMatchingCard(tp,s.posfilter,tp,0,LOCATION_MZONE,1,1,nil)
		local tc=cg:GetFirst()
		if tc then
			Duel.BreakEffect()
			Duel.HintSelection(g)
			Duel.ChangePosition(tc,POS_FACEDOWN_DEFENSE)
		end
	end
end
function s.thfilter(c)
	return c:IsSetCard(0x3d) and c:IsType(TYPE_MONSTER) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.thfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.thfilter,tp,LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectTarget(tp,s.thfilter,tp,LOCATION_GRAVE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,0,0)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and aux.NecroValleyFilter()(tc) then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,tc)
	end
end