--スネーク・ホイッスル
function c81791932.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_DESTROYED)
	e1:SetCondition(c81791932.condition)
	e1:SetTarget(c81791932.target)
	e1:SetOperation(c81791932.activate)
	c:RegisterEffect(e1)
end
function c81791932.cfilter(c,tp)
	return c:IsRace(RACE_REPTILE) and c:IsPreviousPosition(POS_FACEUP) and c:GetPreviousControler()==tp
		and c:IsPreviousLocation(LOCATION_MZONE)
end
function c81791932.condition(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(c81791932.cfilter,1,nil,tp)
end
function c81791932.filter(c,e,tp)
	return c:IsLevelBelow(4) and c:IsRace(RACE_REPTILE) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function c81791932.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(c81791932.filter,tp,LOCATION_DECK,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK)
end
function c81791932.activate(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,c81791932.filter,tp,LOCATION_DECK,0,1,1,nil,e,tp)
	local tc=g:GetFirst()
	if tc then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end
