Roblox chat welcome message script

-- Chat welcome message: a system line in the chat window, shown only to this player.

local MESSAGE = "Welcome to my game! Have fun."

local TextChatService = game:GetService("TextChatService")
local StarterGui = game:GetService("StarterGui")

if TextChatService.ChatVersion == Enum.ChatVersion.TextChatService then
	-- New chat system (the default for new games).
	local channels = TextChatService:WaitForChild("TextChannels", 10)
	local general = channels and channels:WaitForChild("RBXGeneral", 10)
	if general then
		general:DisplaySystemMessage(MESSAGE)
	end
else
	-- Old chat system. The chat may need a moment to load, so try a few times.
	for _ = 1, 10 do
		local ok = pcall(function()
			StarterGui:SetCore("ChatMakeSystemMessage", {
				Text = MESSAGE,
				Color = Color3.fromRGB(255, 220, 80),
			})
		end)
		if ok then
			break
		end
		task.wait(1)
	end
end