--百鬼夜行
--Night of One Hundred Horrors
Duel.EnableUnofficialRace(RACE_YOKAI)
local s,id=GetID()
function s.initial_effect(c)
	--activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
end
function s.filter(c,e,tp)
	return c:IsRace(RACE_YOKAI) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
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.filter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_GRAVE)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local ft=Duel.GetLocationCount(tp,LOCATION_MZONE)
	if ft<=0 then return end
	if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then ft=1 end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.filter),tp,LOCATION_GRAVE,0,ft,ft,nil,e,tp)
	if #g>0 then
		local tc=g:GetFirst()
		while tc do
			Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP)
			tc:RegisterFlagEffect(id,RESET_EVENT|RESETS_STANDARD|RESET_PHASE|PHASE_END,0,1)
			tc=g:GetNext()
		end
		Duel.SpecialSummonComplete()
		g:KeepAlive()
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		e1:SetCode(EVENT_PHASE+PHASE_END)
		e1:SetReset(RESET_PHASE|PHASE_END)
		e1:SetCountLimit(1)
		e1:SetLabelObject(g)
		e1:SetOperation(s.rmop)
		Duel.RegisterEffect(e1,tp)
	end
end
function s.rmfilter(c)
	return c:GetFlagEffect(id)>0
end
function s.rmop(e,tp,eg,ep,ev,re,r,rp)
	local g=e:GetLabelObject()
	local tg=g:Filter(s.rmfilter,nil)
	g:DeleteGroup()
	Duel.Destroy(tg,POS_FACEUP,REASON_EFFECT)
end