--ホイール・シンクロン
--Wheel Synchron
--coded by Lyris
local s,id,o=GetID()
function s.initial_effect(c)
	--nontuner
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EFFECT_NONTUNER)
	e1:SetValue(s.tnval)
	c:RegisterEffect(e1)
	--summon
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,0))
	e2:SetCategory(CATEGORY_SUMMON)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1,id)
	e2:SetTarget(s.nstg)
	e2:SetOperation(s.nsop)
	c:RegisterEffect(e2)
	--reduce level
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,1))
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_GRAVE)
	e3:SetCountLimit(1,id+o)
	e3:SetCost(aux.bfgcost)
	e3:SetTarget(s.lvtg)
	e3:SetOperation(s.lvop)
	c:RegisterEffect(e3)
end
function s.tnval(e,c)
	return e:GetHandler():IsControler(c:GetControler())
end
function s.filter(c)
	return c:IsLevelBelow(4) and c:IsSummonable(true,nil)
end
function s.nstg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_HAND+LOCATION_MZONE,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_SUMMON,nil,1,0,0)
end
function s.nsop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SUMMON)
	local g=Duel.SelectMatchingCard(tp,s.filter,tp,LOCATION_HAND+LOCATION_MZONE,0,1,1,nil)
	local tc=g:GetFirst()
	if tc then
		Duel.Summon(tp,tc,true,nil)
	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(s.splimit)
	e1:SetReset(RESET_PHASE+PHASE_END)
	Duel.RegisterEffect(e1,tp)
end
function s.splimit(e,c)
	return not c:IsType(TYPE_SYNCHRO) and c:IsLocation(LOCATION_EXTRA)
end
function s.lvfilter(c)
	return c:IsFaceup() and c:IsType(TYPE_SYNCHRO) and c:IsLevelAbove(2)
end
function s.lvtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.lvfilter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.lvfilter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,s.lvfilter,tp,LOCATION_MZONE,0,1,1,nil)
end
function s.lvop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if tc and tc:IsFaceup() and tc:IsRelateToEffect(e) then
		local t={}
		for i=1,4 do
			if tc:GetLevel()-i>0 then table.insert(t,i) end
		end
		if #t==0 then return end
		local lv=Duel.AnnounceNumber(tp,table.unpack(t))
		local e1=Effect.CreateEffect(c)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_LEVEL)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD)
		e1:SetValue(-lv)
		tc:RegisterEffect(e1)
	end
end
