Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Activate only while you control a face-up "Power Tool Dragon". Select up to 3 Equip Cards on your side of the field and/or in your Graveyard and return them to the Deck, and inflict 500 damage to your opponent for each card returned.
--パワー・ブレイク
--Power Break
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_TODECK+CATEGORY_DAMAGE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
s.listed_names={2403771}
function s.cfilter(c)
	return c:IsFaceup() and c:IsCode(2403771)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_ONFIELD,0,1,nil)
end
function s.filter(c)
	return c:IsType(TYPE_EQUIP) and c:IsAbleToDeck()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_SZONE|LOCATION_GRAVE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_SZONE|LOCATION_GRAVE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TODECK)
	local g=Duel.SelectTarget(tp,s.filter,tp,LOCATION_SZONE|LOCATION_GRAVE,0,1,3,nil)
	Duel.SetOperationInfo(0,CATEGORY_TODECK,g,#g,0,0)
	Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,1-tp,#g*500)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetTargetCards(e)
	Duel.SendtoDeck(g,nil,SEQ_DECKSHUFFLE,REASON_EFFECT)
	local g=Duel.GetOperatedGroup()
	local ct=g:FilterCount(Card.IsLocation,nil,LOCATION_DECK|LOCATION_EXTRA)
	if ct>0 then
		Duel.Damage(1-tp,ct*500,REASON_EFFECT)
	end
end