Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
[ Pendulum Effect ] All Pendulum Monsters you control gain 300 ATK. ---------------------------------------- [ Monster Effect ] You can target 1 monster whose current ATK is different from its original ATK; apply the appropriate effect. You can only use this effect of "Performapal Cheermole" once per turn. ● If that monster's current ATK is higher than its original ATK, it gains 1000 ATK. ● If that monster's current ATK is lower than its original ATK, it loses 1000 ATK.
--EMチアモール
--Performapal Cheermole
local s,id=GetID()
function s.initial_effect(c)
	--pendulum summon
	Pendulum.AddProcedure(c)
	--atk
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_UPDATE_ATTACK)
	e2:SetRange(LOCATION_PZONE)
	e2:SetTargetRange(LOCATION_MZONE,0)
	e2:SetTarget(s.atktg)
	e2:SetValue(300)
	c:RegisterEffect(e2)
	--atk
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,0))
	e3:SetCategory(CATEGORY_ATKCHANGE)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetRange(LOCATION_MZONE)
	e3:SetCountLimit(1,id)
	e3:SetTarget(s.target)
	e3:SetOperation(s.operation)
	c:RegisterEffect(e3)
end
function s.atktg(e,c)
	return c:IsType(TYPE_PENDULUM)
end
function s.filter(c)
	return c:IsFaceup() and c:GetAttack()~=c:GetBaseAttack()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,LOCATION_MZONE,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,LOCATION_MZONE,1,1,nil)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and tc:IsFaceup() then
		local atk=tc:GetAttack()
		local batk=tc:GetBaseAttack()
		if atk==batk then return end
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		if atk>batk then
			e1:SetValue(1000)
		else
			e1:SetValue(-1000)
		end
		e1:SetReset(RESET_EVENT|RESETS_STANDARD)
		tc:RegisterEffect(e1)
	end
end