Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 Level 5 Insect monsters Once per turn: You can detach 1 material from this card, then target 1 monster your opponent controls or in their GY; equip that target to this card. This card gains ATK/DEF equal to half the original ATK/DEF of the monster(s) equipped by this effect.
--甲虫装機 エクサスタッグ
--Inzektor Exa-Stag
local s,id=GetID()
function s.initial_effect(c)
	--xyz summon
	Xyz.AddProcedure(c,aux.FilterBoolFunctionEx(Card.IsRace,RACE_INSECT),5,2)
	c:EnableReviveLimit()
	--equip
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_EQUIP)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1)
	e1:SetCost(Cost.DetachFromSelf(1))
	e1:SetTarget(s.eqtg)
	e1:SetOperation(s.eqop)
	c:RegisterEffect(e1)
	aux.AddEREquipLimit(c,nil,function(ec,_,tp) return ec:IsControler(1-tp) end,s.equipop,e1)
end
function s.eqfilter(c)
	return c:IsLocation(LOCATION_MZONE) or c:IsMonster() and not c:IsForbidden()
end
function s.eqtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE|LOCATION_MZONE) and chkc:IsControler(1-tp) and s.eqfilter(chkc) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_SZONE)>0
		and Duel.IsExistingTarget(s.eqfilter,tp,0,LOCATION_GRAVE|LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
	local g=Duel.SelectTarget(tp,s.eqfilter,tp,0,LOCATION_GRAVE|LOCATION_MZONE,1,1,nil)
	if g:GetFirst():IsLocation(LOCATION_GRAVE) then
		Duel.SetOperationInfo(0,CATEGORY_LEAVE_GRAVE,g,1,0,0)
	end
end
function s.equipop(c,e,tp,tc)
	if not c:EquipByEffectAndLimitRegister(e,tp,tc) then return end
	if tc:IsFaceup() then
		local atk=tc:GetTextAttack()/2
		if atk<0 then atk=0 end
		local e2=Effect.CreateEffect(c)
		e2:SetType(EFFECT_TYPE_EQUIP)
		e2:SetCode(EFFECT_UPDATE_ATTACK)
		e2:SetReset(RESET_EVENT|RESETS_STANDARD)
		e2:SetValue(atk)
		tc:RegisterEffect(e2)
		local def=tc:GetTextDefense()/2
		if def<0 then def=0 end
		local e3=Effect.CreateEffect(c)
		e3:SetType(EFFECT_TYPE_EQUIP)
		e3:SetCode(EFFECT_UPDATE_DEFENSE)
		e3:SetReset(RESET_EVENT|RESETS_STANDARD)
		e3:SetValue(def)
		tc:RegisterEffect(e3)
	end
end
function s.eqop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if not tc or not tc:IsMonster() then return end
	if not s.equipop(c,e,tp,tc) then return end
end