Swep to only damage a npc

[Orexsen]

Trying to create a swep that only damages a npc and not players so far i came up with this but doesnt work

hook.Add("EntityTakeDamage","gunNoDmg",function(target,dmg)
local ply = dmg:GetAttacker()
if(target:IsPlayer())then 
if(IsValid(ply:GetActiveWeapon()) and ply:GetActiveWeapon():GetClass() == "huntrif")then
dmg:SetDamage(0)
end
end
end)

idk why code box seems to mess up code
hook.Add("EntityTakeDamage","gunNoDmg",function(target,dmg)
local ply = dmg:GetAttacker()
if(target:IsPlayer())then 
if(IsValid(ply:GetActiveWeapon()) and ply:GetActiveWeapon():GetClass() == "huntrif")then
dmg:SetDamage(0)
end
end
end)

[CupCakeR]

Do you run it serverside?

[Orexsen]

yeah i throw it in a if (SERVER)

[Superior Jacob]

Is the dmg:GetAttacker() valid?