How to tell which player clicked a button? [closed]

You can use it, or don't use it. There's no way to say do you need to use it. If you use it correctly, the script also works.

I think you should don't need to use RemoteEvent. RemoveEvent is a thing that's let the server's player knows, that called: FireServer().

You must put this script into the StarterGui > Button. Also, you must do it a script. Not a LocalScript or ModuleScript.

Let get right into the script.

local BadgeID = (000000000)

This is your Badge ID. It can be founded in 'View > Show > Game Explorer'. You must public the game to found your badge inside the 'Game Explorer > Badges'. Right-click on the badge and select 'Copy ID to clipboard'.

local BadgeService = game:GetService("BadgeService")

BadgeService is a 'service' that gives you to award badge to the people, but this wasn't work in Roblox Studio, that's why I tell you public the game.

local button = game.StarterGui.Button

Important, you must change the 'Button' to your button's name.

function onClicked(player)
    if not BadgeService:UserHasBadgeAsync(player.UserId, badgeID) then
       BadgeService:AwardBadge(player.UserId, badgeID)

The first line, script creates a function that on clicked. Second, If the player doesn't get the badge yet... Third, the BadgeService will award the badge to you.

Last line:

button.Mouse1Down:Connect(onClicked)

Finally, this line tells us when the player 'MouseButton1Click', simply called clicked, then connects with the function 'onClicked'. Is this like connecting Redstone? xD

Ok, the entire script :

local badgeID = (000000000)
local badgeService = game:GetService("BadgeService")
local button  = game.StarterGui.Button

function onClicked(player)
    if not badgeService:UserHasBadgeAsync(player.UserId, badgeID) then
        badgeService:AwardBadge(player.UserId, badgeID)
    end
end

button.MouseButton1Click:Connect(onClicked)

Hope I helped, if you have any questions, comment below! :D

Thanks for reading, have a nice day and bye!

k, I kinda answered some of my questions: 1. No it isn't possible in a local script 2. The badge script I think works, the thing that doesn't work is the button press, there is a problem with it to do with the script working with a client side thing.

Script I got from a channel to test if the badge works (it does)

game.Players.PlayerAdded:Connect(function(plr)
 if plr then
  game:GetService("BadgeService"):AwardBadge(plr.userId, 2124489619)
 end
end)

My current badge button script (I changed the "if not" to see if it worked because I have had previous encounters where "not" has not worked but it didn't change anything.

local badgeID = 2124489619
local badgeService = game:GetService("BadgeService")
local button  = game.StarterGui.Frame4.Noob

button.MouseButton1Click:Connect(function(player)
    if badgeService:UserHasBadge(player.UserId, badgeID) then

else
        badgeService:AwardBadge(player.UserId, badgeID)
end
end)