--水晶ドクロ
local s,id,o=GetID()
function s.initial_effect(c)
	--damage
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DAMAGE+CATEGORY_POSITION)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetTarget(s.postg)
	e1:SetOperation(s.posop)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_FLIP_SUMMON_SUCCESS)
	c:RegisterEffect(e2)
	local e3=e1:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
	--search
	local e4=Effect.CreateEffect(c)
	e4:SetCategory(CATEGORY_SEARCH+CATEGORY_TOHAND+CATEGORY_SPECIAL_SUMMON)
	e4:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e4:SetCode(EVENT_PHASE+PHASE_END)
	e4:SetRange(LOCATION_MZONE)
	e4:SetCountLimit(1,id)
	e4:SetCondition(s.thcon)
	e4:SetTarget(s.thtg)
	e4:SetOperation(s.thop)
	c:RegisterEffect(e4)
	if not s.global_check then
		s.global_check=true
		s[0]=0
		s[1]=0
		local ge1=Effect.CreateEffect(c)
		ge1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge1:SetCode(EVENT_DAMAGE)
		ge1:SetOperation(s.regop)
		Duel.RegisterEffect(ge1,0)
		local ge2=Effect.CreateEffect(c)
		ge2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		ge2:SetCode(EVENT_PHASE_START+PHASE_DRAW)
		ge2:SetOperation(s.resetop)
		Duel.RegisterEffect(ge2,0)
	end
end
function s.regop(e,tp,eg,ep,ev,re,r,rp)
	if r&REASON_EFFECT>0 then s[ep]=1 end
end
function s.resetop(e,tp,eg,ep,ev,re,r,rp)
	s[0]=0
	s[1]=0
end
function s.postg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,tp,1000)
end
function s.posop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.Damage(tp,1000,REASON_EFFECT)<=0 then return end
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and c:IsAttackPos() then
		Duel.BreakEffect()
		Duel.ChangePosition(c,POS_FACEUP_DEFENSE)
	end
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return s[tp]==0
end
function s.sfilter(c,e,tp)
	return c:IsRace(RACE_ROCK) and c:IsAttack(0) and (c:IsAbleToHand()
		or (Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and c:IsCanBeSpecialSummoned(e,0,tp,false,false)))
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.sfilter,tp,LOCATION_DECK,0,1,nil,e,tp) end
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_OPERATECARD)
	local tc=Duel.SelectMatchingCard(tp,s.sfilter,tp,LOCATION_DECK,0,1,1,nil,e,tp):GetFirst()
	if tc then
		local th=tc:IsAbleToHand()
		local sp=Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and tc:IsCanBeSpecialSummoned(e,0,tp,false,false)
		local op=0
		if th and sp then op=Duel.SelectOption(tp,1190,1152)
		elseif th then op=0
		else op=1 end
		if op==0 then
			Duel.SendtoHand(tc,nil,REASON_EFFECT)
			Duel.ConfirmCards(1-tp,tc)
		else
			Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
		end
	end
end
