Getting server variables to client ?

[Fist]

Hello!

I have problem with getting local variable from server event.

my code is like this:

Thanks. ^^

CLIENT:

  
triggerServerEvent( "getServerInfo", root, localPlayer, serverName) 
GUIEditor.label[1] = guiCreateLabel(13, 2, 521, 15, serverName, false, GUIEditor.gridlist[1]) 
  

SERVER:

  
function getServerInfo(serverName) 
    local serverName = getServerName() 
end 
addEvent( "getServerInfo", true ) 
addEventHandler( "getServerInfo", root, getServerInfo ) 
  

[Mr_Moose]

You're doing it the wrong way, this will send the variable serverName (value: nil) from client to server, then you'll create a new local variable serverside where you get the server name.

Take a look at:

triggerClientEvent 

[Fist]

You're doing it the wrong way, this will send the variable serverName (value: nil) from client to server, then you'll create a new local variable serverside where you get the server name.

Take a look at:

triggerClientEvent 

getServerName() is only server function.

[HUNGRY:3]

Client

  
addEvent("getClientServerName",true) 
function mhm(serverName) 
Lab = guiCreateLabel(13, 2, 521, 15, serverName, false) 
end 
addEventHandler("getClientServerName",root,mhm) 
  

server

  
  
function getServerInfo() 
    local serverName = getServerName() 
    triggerClientEvent("getClientServerName",root,serverName) 
end 
addEventHandler( "onResourceStart", resourceRoot, getServerInfo ) 
  
  

not tested but should work

Edited September 9, 2015 by Guest

[JR10]

onResourceStart will be called for all resources, should be resourceRoot not root. And this will only trigger when the resource starts, what about when a player joins?

[Fist]

Client

  
addEvent("getClientServerName",true) 
function mhm(serverName) 
Lab = guiCreateLabel(13, 2, 521, 15, serverName, false) 
end 
addEventHandler("getClientServerName",root,mhm) 
  

server

  
  
function getServerInfo() 
    local serverName = getServerName() 
    triggerClientEvent("getClientServerName",root,serverName) 
end 
addEventHandler( "onResourceStart", resourceRoot, getServerInfo ) 
  
  

not tested but should work

still nothing

code:

client:

  
 function recieveServerInfo(serverName) 
        GUIEditor.label[1] = guiCreateLabel(13, 2, 521, 15, serverName, false, GUIEditor.gridlist[1]) 
    end 
    addEvent("recieveServerInfo", true) 
    addEventHandler( "recieveServerInfo", root, recieveServerInfo ) 
  

server:

 

  
function getServerInfo() 
    local serverName = getServerName() 
    triggerClientEvent("recieveServerInfo", root, serverName) 
end 
addEventHandler( "onResourceStart", resourceRoot, getServerInfo ) 
  

[HUNGRY:3]

Debugscript I'm sure it will say some thing

[Citizen]

You didn't understand how server and client sided scripts works and how they should send datas between eachothers.

You probably didn't read the wiki in which everything is explained: https://wiki.multitheftauto.com/wiki/Sc ... de_scripts

But basically, the server scripts are loaded and executed on the server's computer whereas client scripts are dowloaded from the server's computer when the player joins, loaded and then executed on the player's computer

So as they are not running on the same computer, if you create a variable on the server side, this variable won't exist on the client side (and same thing the other way).

/?\ But how to send datas from one side to another then ??? /?\

- You need to send the data from one side and store that data on the other side. This is where triggerServerEventand triggerClientEventcome in !

These two functions can be used to send data(s) from the client side to the server side and from the server side to the client side respectively.

Here is how you should use it in your case:

CLIENT:

function createGuiStuff() 
    -- gui grid list blablabla 
    GUIEditor.label[1] = guiCreateLabel(13, 2, 521, 15, serverName, false, GUIEditor.gridlist[1]) -- Empty for now, it will be updated by our triggerXEvents 
    -- rest of the gui blablabla 
     
    -- and do this at the end: 
    triggerServerEvent("getServerInfo", localPlayer) -- Ask the server to send data(s) about the server to us 
end 
addEventHandler("onClientResourceStart", resourceRoot, createGuiStuff) 
  
addEvent("getServerInfoCallback", true) -- We create an event that the server will use to send the datas to us 
function getServerInfoCallback( servName ) -- servName will contains what the server send to us 
    guiSetText(GUIEditor.label[1], serverName) -- updating the variable serverName we created at the top 
end 
addEventHandler("getServerInfoCallback", root, getServerInfoCallback) 

SERVER:

addEvent( "getServerInfo", true ) 
function getServerInfo() 
    local playerAsking = source -- source is a predefined variable only when the function is called by an event 
    local serverName = getServerName() 
    triggerClientEvent(playerAsking, "getServerInfoCallback", playerAsking, serverName) 
    -- The above function send serverName (4th arg) only for the playerAsking(1st arg) 
    -- using the "getServerInfoCallback" event name (2nd arg) 
    -- and setting playerAsking as the source of the event (3rd arg) 
end 
addEventHandler("getServerInfo", root, getServerInfo) 

[Fist]

@Citizen Thank you so much. <3

I really appreciate u explained me everyting about trigger events.

[SpecT]

Lol why don't you use "return" instead of callback function ?

I know that there is already solution but this is an easier and less code version.

CLIENT:

  
function createGuiStuff() 
    -- gui grid list blablabla 
    GUIEditor.label[1] = guiCreateLabel(13, 2, 521, 15, serverName, false, GUIEditor.gridlist[1]) -- Empty for now, it will be updated by our triggerXEvents 
    -- rest of the gui blablabla 
    
    -- and do this at the end: 
    local serverName = triggerServerEvent("getServerInfo", localPlayer) -- Ask the server to send data(s) about the server to us 
end 
addEventHandler("onClientResourceStart", resourceRoot, createGuiStuff) 
  

SERVER:

function getServerInfo() 
    local playerAsking = source 
    local serverName = getServerName() 
    return serverName 
end 
addEvent("getServerInfo", true) 
addEventHandler("getServerInfo", root, getServerInfo) 
  

[JR10]

Lol why don't you use "return" instead of callback function ?

I know that there is already solution but this is an easier and less code version.

Because it doesn't work like that? You can't cross-return data. You have to trigger another event to return any data.

[Citizen]

Lol why don't you use "return" instead of callback function ?

I know that there is already solution but this is an easier and less code version.

CLIENT:

  
function createGuiStuff() 
    -- gui grid list blablabla 
    GUIEditor.label[1] = guiCreateLabel(13, 2, 521, 15, serverName, false, GUIEditor.gridlist[1]) -- Empty for now, it will be updated by our triggerXEvents 
    -- rest of the gui blablabla 
    
    -- and do this at the end: 
    local serverName = triggerServerEvent("getServerInfo", localPlayer) -- Ask the server to send data(s) about the server to us 
end 
addEventHandler("onClientResourceStart", resourceRoot, createGuiStuff) 
  

SERVER:

function getServerInfo() 
    local playerAsking = source 
    local serverName = getServerName() 
    return serverName 
end 
addEvent("getServerInfo", true) 
addEventHandler("getServerInfo", root, getServerInfo) 
  

Lol

[SpecT]

Lol why don't you use "return" instead of callback function ?

I know that there is already solution but this is an easier and less code version.

Because it doesn't work like that? You can't cross-return data. You have to trigger another event to return any data.

Oh yeah ... I'm sorry, my bad