Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Target 1 "Decode Talker" you control; apply the following effects this turn, depending on the number of monsters it currently points to. ● 1+: That monster gains 500 ATK for each monster it currently points to. ● 2+: Monsters destroyed by battle with that monster are banished after damage calculation. ● 3: After damage calculation, if that monster destroys your opponent's monster by battle: Destroy all cards your opponent controls. You can only activate 1 "Decode Destruction" per turn.
--デコード・エンド
--Decode Destruction
--Scripted by Eerie Code
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)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
s.listed_names={1861629}
function s.filter(c)
	return c:IsFaceup() and c:IsCode(1861629) and c:GetLinkedGroupCount()>0
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_MZONE) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,nil)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if not tc:IsRelateToEffect(e) then return end
	local lc=tc:GetLinkedGroupCount()
	if tc then
		local e0=Effect.CreateEffect(e:GetHandler())
		e0:SetType(EFFECT_TYPE_SINGLE)
		e0:SetDescription(aux.Stringid(id,0))
		e0:SetProperty(EFFECT_FLAG_CLIENT_HINT)
		e0:SetReset(RESETS_STANDARD_PHASE_END)
		tc:RegisterEffect(e0)
	end
	if lc>=1 then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
		e1:SetRange(LOCATION_MZONE)
		e1:SetValue(s.atkval)
		e1:SetReset(RESETS_STANDARD_PHASE_END)
		tc:RegisterEffect(e1)
	end
	if lc>=2 then
		local e2=Effect.CreateEffect(c)
		e2:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
		e2:SetCode(EVENT_ADJUST)
		e2:SetRange(LOCATION_MZONE)
		e2:SetReset(RESETS_STANDARD_PHASE_END)
		e2:SetOperation(s.op)
		tc:RegisterEffect(e2)
	end
	if lc==3 then
		local e3=Effect.CreateEffect(c)
		e3:SetCategory(CATEGORY_DESTROY)
		e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
		e3:SetCode(EVENT_BATTLED)
		e3:SetReset(RESETS_STANDARD_PHASE_END)
		e3:SetCondition(s.descon)
		e3:SetTarget(s.destg)
		e3:SetOperation(s.desop)
		tc:RegisterEffect(e3)
	end
end
function s.atkval(e,c)
	return c:GetLinkedGroupCount()*500
end
function s.op(e,tp,eg,ep,ev,re,r,rp)
	local bc=e:GetHandler():GetBattleTarget()
	if bc and bc:IsStatus(STATUS_BATTLE_DESTROYED)
		then Duel.Remove(bc,bc:GetPosition(),REASON_EFFECT)
	end
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsStatus(STATUS_BATTLE_DESTROYED) then return false end
	local bc=c:GetBattleTarget()
	return bc and bc:IsStatus(STATUS_BATTLE_DESTROYED)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	local g=Duel.GetFieldGroup(tp,0,LOCATION_ONFIELD)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g,#g,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetFieldGroup(tp,0,LOCATION_ONFIELD)
	Duel.Destroy(g,REASON_EFFECT)
end