--デブリ・ドラゴン
--Debris Dragon
local s,id=GetID()
function s.initial_effect(c)
	--synchro custom
	local e4=Effect.CreateEffect(c)
	e4:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e4:SetType(EFFECT_TYPE_SINGLE)
	e4:SetCode(EFFECT_SYNCHRO_MAT_RESTRICTION)
	e4:SetValue(s.synclimitfilter)
	c:RegisterEffect(e4)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetCode(EFFECT_CANNOT_BE_SYNCHRO_MATERIAL)
	e2:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e2:SetValue(s.synlimit)
	c:RegisterEffect(e2)
	--summon success
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,0))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetCode(EVENT_SUMMON_SUCCESS)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetTarget(s.sumtg)
	e3:SetOperation(s.sumop)
	c:RegisterEffect(e3)
end
function s.synlimit(e,c)
	if not c then return false end
	return not c:IsRace(RACE_DRAGON)
end
function s.synclimitfilter(e,c)
	return c:GetLevel()~=4
end
function s.filter2(c,e,sp)
	return c:IsAttackBelow(500) and c:IsCanBeSpecialSummoned(e,0,sp,false,false)
end
function s.sumtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.filter2(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.filter2,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.filter2,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.sumop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP_ATTACK) then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_DISABLE)
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		tc:RegisterEffect(e1,true)
		local e2=Effect.CreateEffect(c)
		e2:SetType(EFFECT_TYPE_SINGLE)
		e2:SetCode(EFFECT_DISABLE_EFFECT)
		e2:SetReset(RESET_EVENT|RESETS_STANDARD)
		tc:RegisterEffect(e2,true)
	end
	Duel.SpecialSummonComplete()
end