--Zombie Master (Skill Card)
local s,id=GetID()
function s.initial_effect(c)
	aux.AddSkillProcedure(c,1,false,s.flipcon,s.flipop)
end
function s.flipcon(e,tp,eg,ep,ev,re,r,rp)
	--opd check
	if Duel.GetFlagEffect(ep,id)>0 then return end
	--condition
	return aux.CanActivateSkill(tp) and Duel.IsExistingMatchingCard(s.ZMfilter,tp,LOCATION_MZONE,0,1,nil)
end
function s.flipop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SKILL_FLIP,tp,id|(1<<32))
	Duel.Hint(HINT_CARD,tp,id)
	--opd register
	Duel.RegisterFlagEffect(ep,id,0,0,0)
	local c=e:GetHandler()
	local sg=Duel.SelectMatchingCard(tp,s.ZMfilter,tp,LOCATION_MZONE,0,1,1,nil)
	local tc=sg:GetFirst()
	if tc then
		local e1=Effect.CreateEffect(c)
		e1:SetDescription(aux.Stringid(id,0))
		e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
		e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
		e1:SetType(EFFECT_TYPE_IGNITION)
		e1:SetCountLimit(1)
		e1:SetRange(LOCATION_MZONE)
		e1:SetCost(s.spcost)
		e1:SetTarget(s.sptg)
		e1:SetOperation(s.spop)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD)
		tc:RegisterEffect(e1)
		if not tc:IsType(TYPE_EFFECT) then
			local e2=Effect.CreateEffect(c)
			e2:SetType(EFFECT_TYPE_SINGLE)
			e2:SetCode(EFFECT_ADD_TYPE)
			e2:SetValue(TYPE_EFFECT)
			e2:SetReset(RESET_EVENT+RESETS_STANDARD)
			tc:RegisterEffect(e2,true)
		end
	end
end
function s.ZMfilter(c)
	return c:IsFaceup() and c:IsLevelBelow(4) and c:IsRace(RACE_ZOMBIE)
end
function s.costfilter(c)
	return c:IsMonster() and c:IsAbleToGraveAsCost()
end
function s.spcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.costfilter,tp,LOCATION_HAND,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.costfilter,tp,LOCATION_HAND,0,1,1,nil)
	Duel.SendtoGrave(g,REASON_COST)
end
function s.filter(c,e,tp)
	return c:IsLevelBelow(4) and c:IsRace(RACE_ZOMBIE) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and s.filter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingTarget(s.filter,tp,LOCATION_GRAVE,LOCATION_GRAVE,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_GRAVE,LOCATION_GRAVE,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if c:IsFaceup() and c:IsRelateToEffect(e) and tc:IsRelateToEffect(e) and tc:IsRace(RACE_ZOMBIE) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end
