How can I make a gui that gives you a random number, then puts it on a surface gui?

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#1

  1. What do you want to achieve?
    I would like to achieve a number generator, that generates a number between 001 → 999 with no decimal, and gives every player a unique number. It then puts it on a surface gui (attached image.)
    image

  2. What is the issue?
    Nobody has known how to do it, and I cannot figure it out myself either.

  3. What solutions have you tried so far?
    I have looked on the developer hub, and tried to find a post like mine however I have not found any posts like mine and none of my friends know how.

    Thanks in advance.

#2

local randomID = math.random(0,999)

#3

This does not work, any ideas?

#4

Hold on im making a script right now that may work

#5

Well, this depends on if you want it to generate every x seconds or just once when the server is starting.

Use the randomid and set the surface gui’s text to the randomid variable and it should work.

#6

Yeah but it isnt that simple he wants every number to be unique I mean 0 to 999 is a huge range, the probability of like a 15-20 player game that 2 people get the same ID is highely unlikely but still could happen

#7

Oh.

Put this into starterplayerscripts:

local Player = game.Players.LocalPlayer 
local gui = workspace.SurfaceGui.TextLabel - Reference your textlabel

local randnum = math.Random(0, 999)

gui.Text = randnum

print(“randnum”)

Let me know if it works :slight_smile:

#8

Alright I wrote up this quick recursion which checks if other players have gotten the same ID and then regenerates it and etc.

It’s pretty simple to convert this to a gui that has a number on it

local Identifiers = {}
local Players = game.Players

game.Players.PlayerAdded:Connect(function(player)
	local randomIdentifier = math.random(0,999)
	local function checkOtherIdentifiers(id)
		for _, others in ipairs(Players:GetChildren()) do
			if table.getn(Identifiers) > 0 and id == Identifiers[others.UserId].ID then
				id = math.random(0,999)
				checkOtherIdentifiers(id)
			else
				Identifiers[player.UserId] = {
					ID = id
				}
			end
		end
	end
	checkOtherIdentifiers(randomIdentifier)
	print(Identifiers[player.UserId].ID)
end)

image
image

#9

If a player leaves the game, then the entry must be removed from the table, otherwise the table becomes larger and larger. Or am I mistaken?

1 Like
#10

You are correct, you will need a player removing event inside of the function and remove the number from the table.

#11

Yeah your correct but i didnt add that because well, I thought OP would be able to put the pieces together themselves

Were not suppose to write whole systems but we can use code to lead someone in the right direction
@Dev_OnCake
@Carl_Weezer13

#12

ahh, thank you all for helping me out a bit