--古代の機械要塞
function c70147689.initial_effect(c)
	--activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--indes
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	e2:SetRange(LOCATION_SZONE)
	e2:SetTargetRange(LOCATION_MZONE,0)
	e2:SetTarget(c70147689.target)
	e2:SetValue(c70147689.indval)
	c:RegisterEffect(e2)
	--cannot be target
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_FIELD)
	e3:SetCode(EFFECT_CANNOT_BE_EFFECT_TARGET)
	e3:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
	e3:SetRange(LOCATION_SZONE)
	e3:SetTargetRange(LOCATION_MZONE,0)
	e3:SetTarget(c70147689.target)
	e3:SetValue(aux.tgoval)
	c:RegisterEffect(e3)
	--act limit
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e4:SetCode(EVENT_CHAINING)
	e4:SetRange(LOCATION_SZONE)
	e4:SetOperation(c70147689.chainop)
	c:RegisterEffect(e4)
	--special summon
	local e5=Effect.CreateEffect(c)
	e5:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e5:SetDescription(aux.Stringid(70147689,0))
	e5:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e5:SetProperty(EFFECT_FLAG_DELAY)
	e5:SetCode(EVENT_DESTROYED)
	e5:SetCondition(c70147689.spcon)
	e5:SetTarget(c70147689.sptg)
	e5:SetOperation(c70147689.spop)
	c:RegisterEffect(e5)
end
function c70147689.target(e,c)
	return c:IsSetCard(0x7) and c:IsStatus(STATUS_SUMMON_TURN+STATUS_SPSUMMON_TURN)
end
function c70147689.indval(e,re,rp)
	return rp~=e:GetHandlerPlayer()
end
function c70147689.chainop(e,tp,eg,ep,ev,re,r,rp)
	if re:GetHandler():IsSetCard(0x7) then
		Duel.SetChainLimit(c70147689.chainlm)
	end
end
function c70147689.chainlm(e,rp,tp)
	return tp==rp
end
function c70147689.spcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsPreviousLocation(LOCATION_SZONE)
end
function c70147689.filter(c,e,tp)
	return c:IsSetCard(0x7) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function c70147689.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(c70147689.filter,tp,LOCATION_HAND+LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND+LOCATION_GRAVE)
end
function c70147689.spop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,c70147689.filter,tp,LOCATION_HAND+LOCATION_GRAVE,0,1,1,nil,e,tp)
	if g:GetCount()>0 then
		if g:GetFirst():IsHasEffect(EFFECT_NECRO_VALLEY) and Duel.IsChainDisablable(0) then
			Duel.NegateEffect(0)
			return
		end
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_CANNOT_SPECIAL_SUMMON)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetTargetRange(1,0)
	e1:SetTarget(c70147689.splimit)
	e1:SetReset(RESET_PHASE+PHASE_END)
	Duel.RegisterEffect(e1,tp)
end
function c70147689.splimit(e,c)
	return not c:IsSetCard(0x7)
end
