Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
All face-up monsters, except for Effect Monsters, are unaffected by other Spell effects.
--絶対魔法禁止区域
--Non-Spellcasting Area
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	--immune
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_IMMUNE_EFFECT)
	e2:SetRange(LOCATION_SZONE)
	e2:SetTargetRange(LOCATION_MZONE,LOCATION_MZONE)
	e2:SetTarget(s.etarget)
	e2:SetValue(s.efilter)
	c:RegisterEffect(e2)
end
function s.etarget(e,c)
	return not c:IsType(TYPE_EFFECT)
end
function s.efilter(e,re)
	return re:IsSpellEffect()
end