Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Once while face-up on the field, during damage calculation in your opponent's turn, if this card is being attacked (Quick Effect): You can target the attacking monster; make that target's ATK 0 during damage calculation only.
--水魔神－スーガ
--Suijin
local s,id=GetID()
function s.initial_effect(c)
	--atkdown
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_ATKCHANGE)
	e1:SetType(EFFECT_TYPE_QUICK_O)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EVENT_PRE_DAMAGE_CALCULATE)
	e1:SetProperty(EFFECT_FLAG_NO_TURN_RESET)
	e1:SetCountLimit(1)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsTurnPlayer(1-tp) and Duel.GetAttackTarget()==e:GetHandler()
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetAttacker():IsCanBeEffectTarget(e) end
	Duel.SetTargetCard(Duel.GetAttacker())
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_SET_ATTACK_FINAL)
		e1:SetReset(RESET_PHASE|PHASE_DAMAGE_CAL)
		e1:SetValue(0)
		tc:RegisterEffect(e1)
	end
end