client to server communication entity

I need a way to communicate to the server from the client, networked variables don’t work because they can set variables on the server and ussermessage’s are server to client only.

Use a Datastream.

Only use datastream if you need to network tables (which you shouldn’t do anyway). Console commands are the way to go (datastream actually uses console commands).

Another question : I remade it so I don’t need the client to server communication only now I send a usermessage to the client and then spawn a prop :

this is called when a user presses E on the entity

function UseClient( um )

local self = um:ReadEntity()
local upVector = self:GetAngles():Up()

local ent = ents.Create( "prop_physics" )
ent:SetAngles( self:GetAngles() )
ent:SetPos( self:GetPos() + (upVector * 15) )
ent:GetPhysicsObject():ApplyForceCenter( upVector * 5000 * ent:GetPhysicsObject():GetMass() )



the entity being send through the ussermessage is self.Entity

errors :

Tried to use invalid object (type IPhysicsObject) (Object was NULL or not of the right type)


This is client side btw

Props don’t have physics clientside. You’re better off making it on the server.

I have a little problem, I have this menu that is clientside (derma) and it has some variables that I need for creating the prop (propIndex) how can I combine this, as you can see sending a usmg to the client whenever someone presses use on the prop didn’t work

Use a console command.

How would that work, I have a on use event on the server and variables on the client, how would a console command get the variables to the server ?

A console command is the only way to get variables to the server. You would use it to trigger the entity creation with the arguments you supplied it.