Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If the only face-up monster you control is 1 "Blackwing" monster other than "Blackwing - Gladius the Midnight Sun", you can Special Summon this card (from your hand). Once per turn, this card cannot be destroyed by battle.
--BF－白夜のグラディウス
--Blackwing - Gladius the Midnight Sun
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(s.spcon)
	c:RegisterEffect(e1)
	--battle indes
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCode(EFFECT_INDESTRUCTABLE_COUNT)
	e2:SetCountLimit(1)
	e2:SetValue(s.valcon)
	c:RegisterEffect(e2)
end
s.listed_series={SET_BLACKWING}
function s.spcon(e,c)
	if c==nil then return true end
	local tp=c:GetControler()
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return false end
	local g=Duel.GetMatchingGroup(Card.IsFaceup,tp,LOCATION_MZONE,0,nil)
	local tc=g:GetFirst()
	return #g==1 and tc:IsSetCard(SET_BLACKWING) and tc:GetCode()~=id
end
function s.valcon(e,re,r,rp)
	return (r&REASON_BATTLE)~=0
end