Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can only control 1 "Noble Arms of Destiny". Equip only to a Warrior-Type monster. Once per turn, the equipped monster cannot be destroyed by battle or by card effects. If this face-up card on the field is destroyed and sent to the Graveyard: You can target 1 Warrior-Type "Noble Knight" monster you control; equip this card to that target. You can only use this effect of "Noble Arms of Destiny" once per turn.
--天命の聖剣
--Noble Arms of Destiny
local s,id=GetID()
function s.initial_effect(c)
	c:SetUniqueOnField(1,0,id)
	aux.AddEquipProcedure(c,nil,aux.FilterBoolFunction(Card.IsRace,RACE_WARRIOR))
	--cannot be destroyed
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_EQUIP)
	e2:SetCode(EFFECT_INDESTRUCTABLE_COUNT)
	e2:SetValue(s.valcon)
	e2:SetCountLimit(1)
	c:RegisterEffect(e2)
	--equip
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,0))
	e4:SetCategory(CATEGORY_EQUIP)
	e4:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e4:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e4:SetCode(EVENT_TO_GRAVE)
	e4:SetCountLimit(1,id)
	e4:SetCondition(s.eqcon)
	e4:SetTarget(s.eqtg)
	e4:SetOperation(s.eqop)
	c:RegisterEffect(e4)
end
function s.eqop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if c:IsRelateToEffect(e) and tc and tc:IsRelateToEffect(e) and tc:IsFaceup() and c:CheckUniqueOnField(tp) then
		Duel.Equip(tp,c,tc)
	end
end
function s.valcon(e,re,r,rp)
	return (r&REASON_BATTLE+REASON_EFFECT)~=0
end
function s.eqcon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	return c:IsPreviousLocation(LOCATION_ONFIELD) and c:IsPreviousPosition(POS_FACEUP) and c:IsReason(REASON_DESTROY) and c:CheckUniqueOnField(tp)
end
function s.eqfilter2(c)
	return c:IsFaceup() and c:IsSetCard(SET_NOBLE_KNIGHT) and c:IsRace(RACE_WARRIOR)
end
function s.eqtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.eqfilter2(chkc) end
	if chk==0 then return e:GetHandler():IsRelateToEffect(e) and Duel.GetLocationCount(tp,LOCATION_SZONE)>0
		and Duel.IsExistingTarget(s.eqfilter2,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_EQUIP)
	Duel.SelectTarget(tp,s.eqfilter2,tp,LOCATION_MZONE,0,1,1,nil)
	Duel.SetOperationInfo(0,CATEGORY_EQUIP,e:GetHandler(),1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_LEAVE_GRAVE,e:GetHandler(),1,0,0)
end