Variables in a ModuleScript table returning nil?

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#1

I have a Module Script that looks like this:

local OtherModules = {
	
	AlivePlayers = {}
	
}

return OtherModules

I want to insert a value into the AlivePlayers table so I do this on a Server Script:

for i,player in pairs(game.Players:GetPlayers()) do
	table.insert(AlivePlayers, player)
end

Now I want to access the values I just put in to the table on a LocalScript so I do this:

for i,v in pairs(AlivePlayers) do
	print(AlivePlayers[1])
	print(v.Name)
end

But it prints nil and nothing after that because the Local Script doesn’t see anything inside of the table, I don’t know why this is happening and I’ve had this issue for about 2 hours now and I’m really confused. If someone could help me that would be great, thanks!

1 Like
#2

Variables are not replicated across server and client. You still need to use RemoteEvents and RemoteFunctions in order to share data between client and server.

#3

So a module script is not a Datastore its just a “class”, it dosent store any Data. You can either Use _G or Remote Events

Server Script

_G.AlivePlayers = {}

for i,player in pairs(game.Players:GetPlayers()) do
	_G.AlivePlayers[#_G.AlivePlayerss+1] = player
end

Local Script

for i,v in pairs(_G.AlivePlayers) do
	print(_G.AlivePlayers[1])
	print(v.Name)
end
#4

Which would be better? RemoteEvents or RemoteFunctions, I’d rather work with RemoteEvents because I’m more familiar with them. As well as if I used a RemoteEvent would I use :FireAllClients to send the information to all of the clients?

#5

Remote Events is better, _G is like meh

#6

Actually, this is incorrect. Modules can still store variables within them, and any scripts which require them can share and access those values (but only within their own network).

@Master_Aaron
You’ll need to create a RemoteFunction which will return a table of Player names or IDs to the client when requested.

#7

I meant like it doesn’t store data like a Data store, you cannot access a data across scripts inside a module script

#8

Could you give me an example of what it’d maybe look like? Again, I rarely use RemoteFunctions so I don’t know how they work, but this would be a great time to start learning them.

#9

For example, you’d have a RemoteFunction (GetAlivePlayers) in ReplicatedStorage and a Script in ServerScriptService which looks something like this:

local OtherModules = require(path.to.OtherModules)
local GetAlivePlayers = game:GetService("ReplicatedStorage").GetAlivePlayers

GetAlivePlayers.OnServerInvoke = function()
    return OtherModules.AlivePlayers
end

Your LocalScript would look like this:

local GetAlivePlayers = game:GetService("ReplicatedStorage").GetAlivePlayers

for i,v in pairs(GetAlivePlayers:InvokeServer()) do
    print(v.Name)
end
#10

Oh ok, I’ll test that when I get home, thanks for the help! :smile:

1 Like
#11

That’s cool. Just be wary when passing Instances with Remotes. If you receive any errors (or nil data), you’ll need to adjust your RemoteFunction to return a table of Player Names or UserIds, then get the Player Instance on the client.