Tables and shared Lua files

[Tekken]

So I'm interested into replacing element data functions to more efficient store data into tables but with this comes a problem, syncing the data between client and server so I taught of creating a shared Lua file and building the system there so in this way the functions will work both client/server.

But will this work?

Or should I use a make around with the event system?

[sacr1ficez]

12 minutes ago, Tekken said:

So I'm interested into replacing element data functions to more efficient store data into tables but with this comes a problem, syncing the data between client and server so I taught of creating a shared Lua file and building the system there so in this way the functions will work both client/server.

But will this work?

Or should I use a make around with the event system?

Shared won't work.

Example:

-- Client

local clientTable = {}

--

function onClientDataSync(serverData)
	clientTable = serverData
end
addEvent("onClientDataSync", true)
addEventHandler("onClientDataSync", resourceRoot, onClientDataSync)

--

function onClientReceiveVehicleData(...)
	local receivedData = {...}
	local vehicleUserdata = receivedData[1]
	local vehicleData = receivedData[2]

	clientTable[vehicleUserdata] = vehicleData

	outputConsole(inspect(clientTable))
end
addEvent("onClientReceiveVehicleData", true)
addEventHandler("onClientReceiveVehicleData", resourceRoot, onClientReceiveVehicleData)

-- Server

local serverTable = {}
local newVehicle = createVehicle(411, 0, 0, 3)

--

serverTable[newVehicle] = "Some data you want to pass"

About sync:

--[[Sync for everyone]]

triggerClientEvent(root, "onClientReceiveVehicleData", resourceRoot, newVehicle, serverTable[newVehicle])

--[[When player latejoined - pass data f.e when he logins]]

triggerClientEvent(source, "onClientDataSync", resourceRoot, serverTable)

 

[Tekken]

But why shared will not work?

[sacr1ficez]

1 minute ago, Tekken said:

But why shared will not work?

Tables aren't synced by default. If you create tables via shared script, they do not have same data (unless you will sync it). Take a look at this topic, might be helpful.

 

[IIYAMA]

21 minutes ago, Tekken said:

But why shared will not work?

 

If you enable shared, this is what will happen:

<script src="file.Lua" type="shared"/>

becomes

<script src="file.Lua" type="client"/>
<script src="file.Lua" type="server"/>

 

The file is now used for serverside as well as clientside. But they are still loaded on 2 different applications. And as you know, you can't share your memory across the internet without taking the connection delay `ping` in consideration.

 

The concept behind `shared` is a feature to make (utility) functionalities that work on both sides (client/server).

Main purpose: Less maintenance

The following content could be useful for in a shared file:

https://wiki.multitheftauto.com/wiki/FindRotation

https://wiki.multitheftauto.com/wiki/Table.random

https://wiki.multitheftauto.com/wiki/Table.compare

etc.

 

 

 

 

Edited May 3, 2020 by IIYAMA

[Fist]

It's really easy to create alternative setElementData function what uses tables instead with automatic syncing.

https://github.com/rivor/ttt-mta/blob/master/terrortown/scripts/server/playerdata.Lua

this is the way i did back when i was still making my own stuff on mta, you can check client side, which is in client files but it's exact same code just reversed. Of course for better security, i recommend it so that you wouldn't use syncing from client side to server for obvious reasons.