Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you control a "Ninjitsu Art" card: Destroy as many other "Ninjitsu Art" cards you control as possible, then draw 2 cards.
--機甲忍法ゴールド・コンバージョン
--Armor Ninjitsu Art of Alchemy
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DRAW+CATEGORY_DESTROY)
	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_series={SET_NINJITSU_ART}
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsSetCard,SET_NINJITSU_ART),tp,LOCATION_ONFIELD,0,1,nil)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsPlayerCanDraw(tp,2) end
	local g=Duel.GetMatchingGroup(aux.FaceupFilter(Card.IsSetCard,SET_NINJITSU_ART),tp,LOCATION_ONFIELD,0,e:GetHandler())
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,#g,0,0)
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,2)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(aux.FaceupFilter(Card.IsSetCard,SET_NINJITSU_ART),tp,LOCATION_ONFIELD,0,e:GetHandler())
	local ct=Duel.Destroy(g,REASON_EFFECT)
	if ct>0 then
		Duel.BreakEffect()
		Duel.Draw(tp,2,REASON_EFFECT)
	end
end