simple join and leave notification

local PlayerAdded = game.Players.PlayerAdded
local PlayerRemoved = game.Players.PlayerRemoving
local PlayerID = game.Players.LocalPlayer.UserId
local IsFriends = Player:IsFriendsWith(PlayerID)
local StarterGui = game.StarterGui

PlayerAdded:Connect(function(Player) -- Friend Joined
if IsFriends then
StarterGui:SetCore("SendNotification",{
Title = "Your Friend Has Joined The Game",
Text = Player.Name .. " joined.",
Duration = 5
})
end end)

PlayerRemoved:Connect(function(Player) -- Friend Left
if IsFriends then
StarterGui:SetCore("SendNotification",{
Title = "Your Friend Has Left The Game",
Text = Player.Name .. " left.",
Duration = 5
}) 
end end)

PlayerAdded:Connect(function(Player) -- Non-Friend Joined
if IsFriends then break else
StarterGui:SetCore("SendNotification",{
Title = "Has Joined The Game",
Text = Player.Name .. " joined.",
Duration = 5
})
end end)

PlayerRemoved:Connect(function(Player) -- Non-Friend Left
if IsFriends then break else
StarterGui:SetCore("SendNotification",{
Title = "Has Left The Game",
Text = Player.Name .. " left.",
Duration = 5
})
end end)