Deleting a GUI after respawn? (one-time GUI)

Solution 1

Any easy solution for this is to insert a value into the player upon clicking.

You can then check for this value. If it exists, destroy the Gui object.

local player = game.Players.LocalPlayer --Easy way to reference the client
local team = game.Teams["airman"]

if player:FindFirstChild("HasSelectedTeam") then --Check for the val
    script.Parent.Parent:Destroy();
end

function onButtonClicked()
    player.Character:BreakJoints() --Easy way to kill people
    player.Team = team --'Team' is now a property of players :)
    Instance.new("BoolValue",player).Name = "HasSelectedTeam"; --Insert val
    script.Parent.Parent:Destroy() --'Remove' is deprecated
end

script.Parent.MouseButton1Down:connect(onButtonClicked)

Solution 2

You may also simply clone the gui into the Player's PlayerGui when they join the game, using a PlayerAdded event. With this option you can keep your code the same.

• Note - place your gui in ReplicatedStorage, and reference it from the script.

Script in serverscriptstorage

local ui = game.ReplicatedStorage.YourGui --This is the gui to be cloned

game.Players.PlayerAdded:connect(function(plr)
    local plrui = plr:WaitForChild("PlayerGui");
    ui:Clone().Parent = plrui;
end)

Which one is best?

I'd say the second solution is better, so then you don't constantly have a useless gui in your PlayerGui after that first click.

Hope I helped! And happy developing :)