Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Equip only to a Warrior-Type, Beast-Warrior-Type, or Spellcaster-Type monster. Its ATK becomes 0. During each of your Standby Phases, inflict 500 damage to the controller of the equipped monster.
--疫病
--Pestilence
local s,id=GetID()
function s.initial_effect(c)
	aux.AddEquipProcedure(c,nil,aux.FilterBoolFunction(Card.IsRace,RACE_WARRIOR|RACE_SPELLCASTER|RACE_BEASTWARRIOR))
	--Atk,def
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_EQUIP)
	e2:SetCode(EFFECT_SET_ATTACK)
	e2:SetValue(0)
	c:RegisterEffect(e2)
	--damage
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(id,0))
	e4:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_F)
	e4:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e4:SetCode(EVENT_PHASE|PHASE_STANDBY)
	e4:SetRange(LOCATION_SZONE)
	e4:SetCountLimit(1)
	e4:SetCondition(s.damcon)
	e4:SetTarget(s.damtg)
	e4:SetOperation(s.damop)
	c:RegisterEffect(e4)
end
function s.damcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(tp)
end
function s.damtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	local damp=e:GetHandler():GetEquipTarget():GetControler()
	Duel.SetTargetPlayer(damp)
	Duel.SetTargetParam(500)
	Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,damp,500)
end
function s.damop(e,tp,eg,ep,ev,re,r,rp)
	if not e:GetHandler():IsRelateToEffect(e) then return end
	local damp=e:GetHandler():GetEquipTarget():GetControler()
	local d=Duel.GetChainInfo(0,CHAININFO_TARGET_PARAM)
	Duel.Damage(damp,d,REASON_EFFECT)
end