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can I do triggerEventServer return a value??


AlfaMTA

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Hi guys!

Again I here to ask your help :P

Well, I trying to do a function in my gamemode to check if a player is VIP or not...

To call this function I use triggerServerEvent

  
triggerServerEvent("checkIfPlayerIsVIP", localPlayer) 
  

And I'm using the triggerServerEvent inside a if, see:

  
if (triggerServerEvent("checkIfPlayerIsVIP", localPlayer)) == true then 
  

In the gamemode I put it:

  
addEvent( "checkIsVIP", true ) 
addEventHandler( "checkIsVIP", root,  
 function () 
     local accName = getAccountName(getPlayerAccount(source)) 
     if isObjectInACLGroup("user.".. accName, aclGetGroup("VIP")) then 
       return true 
     else 
       return false 
     end 
 end) 
  

So I would want that the function in gamemode return a boolean value to use on my if to check if player is VIP or not

I hope you understood my situation!

Thanks for all!

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triggerServerEvent returns true if it was succefully sent, false otherwise. You can't do it like that, you either make a triggerClientEvent from server side to client side to return true / false or create an exports function which returns true if a player is in the VIP group false otherwise.

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create an exports function which returns true if a player is in the VIP group false otherwise.

Exports are for inter-resource communication, and you cannot call server exports from the client, nor vice-versa.

Edited by Guest
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Put this server side:

addEventHandler("onPlayerLogin", root, 
function(_, acc) 
    local accName = getAccountName(acc) 
    if isObjectInACLGroup("user."..accName, aclGetGroup("VIP")) then 
        setElementData(source, "VIP", true) 
    end 
end) 

Then use this client side:

if getElementData(localPlayer, "VIP") == true then 

Lua tag is broken.

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create an exports function which returns true if a player is in the VIP group false otherwise.

Exports are for inter-resource communication, and you cannot call server exports from the client, nor vice-versa.

I meant with the triggers, but yea, SetElementData is much better.

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Put this server side:

addEventHandler("onPlayerLogin", root, 
function(_, acc) 
    local accName = getAccountName(acc) 
    if isObjectInACLGroup("user."..accName, aclGetGroup("VIP")) then 
        setElementData(source, "VIP", true) 
    end 
end) 

Then use this client side:

if getElementData(localPlayer, "VIP") == true then 

Lua tag is broken.

My question were "How can I do return values through triggerEventServer or triggerEventClient to communicate serverside and clientside???" but your suggestion is a good way to resolve my problem

Nice solution, I'm going to test it!

Thank you!

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My question were "How can I do return values through triggerEventServer or triggerEventClient to communicate serverside and clientside???"

You cant return a value in such a way, since it takes time for the server to receive the data and to send it back, and that would mean you would have to freeze the client and wait for answer.

The solution is to use triggerClientEvent server sided in the event that you trigged to trigger back to client.

-- Client sided: 
addEvent("onReceiveVIPData", true) 
addEventHandler("onReceiveVIPData", resourceRoot, 
function(isVIP) 
    -- You are a VIP if isVIP is true 
end) 
  
triggerServerEvent("checkIfPlayerIsVIP", resourceRoot) 
  
  
-- Server sided: 
addEvent("checkIfPlayerIsVIP", true) 
addEventHandler("checkIfPlayerIsVIP", resourceRoot, 
function() 
    -- 'client' variable is set by mta to the player that triggered the event from client-side 
    local accName = getAccountName(getPlayerAccount(client)) 
    local isVIP = false 
    if isObjectInACLGroup("user.".. accName, aclGetGroup("VIP")) then 
        isVIP = true 
    end 
    triggerClientEvent(client, "onReceiveVIPData", resourceRoot, isVIP) 
end) 

But a better solution here would be to use onPlayerLogin and setElementData to the player as VIP, or maybe even set the players team to VIP team.

Edited by Guest
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