How to Send a System Message when a player touches a specific part

[GodLikesYou (john)]

im making an obby and when a player touches a part, i want the system to send a message

[raysboyss (ray)]

In a script that is parented to the part:

local part = script.Parent
part.Touched:Connect(function()
    local touched = part:GetTouchingParts()

    for i=1, #touched do
        if touched[i].Parent:FindFirstChild("Humanoid") then
            print("message")
        end
    end
end)

If you want to have it be an actual message on the screen instead of in the console, then you’d have to use a ScreenGui and have a TextLabel appear & output a message.

[GodLikesYou (john)]

yeah i want the system to use chat like this
[Server] : xxx has beaten an obby

[3YbuKtOp (Alex_Kornilov)]

LegacyChatService:

--server
event:FireAllClient({Text="[Server] : xxx has beaten an obby", Color=Color3.fromRGB(218, 65, 45)}) --example

--client
event.OnClientEvent:Connect(function(data)
	game.StarterGui:SetCore("ChatMakeSystemMessage", data)
end)

TextChatService:

--server
event:FireAllClient('<font color="rgb(255,125,0)">[Server]</font> : <b>xxx</b> has beaten an obby') --example

--client
event.OnClientEvent:Connect(function(data)
	game.TextChatService:WaitForChild("TextChannels"):WaitForChild("RBXGeneral"):DisplaySystemMessage(data) --you can use RBXSystem too
end)

[NyrionDev (Nyrion)]

On the server(listening for the Touched event and notifying the clients):

--Server script in ServerScriptService
local Remote = Instance.new("RemoteEvent", game.ReplicatedStorage)
Remote.Name = "SystemChat"

local part = workspace.Baseplate --example

--message config
local config = {
	Color = Color3.fromRGB(255, 0, 0), 
	Font = Enum.Font.Arial, 
	FontSize = Enum.FontSize.Size18
}

local touched = {} --who has already touched the part?
part.Touched:Connect(function(hit)
	local player = game.Players:GetPlayerFromCharacter(hit.Parent)
	if not player or table.find(touched, player) then return end
	table.insert(touched, player)
	local message = "[Server]: "..player.Name.." has beaten an obby!"
	Remote:FireAllClients(message, config)
end)

On the client(picking up the notification and showing it depending on chat version):

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

local Remote: RemoteEvent = game.ReplicatedStorage:WaitForChild("SystemChat")

type config = {Text: string?, Color: Color3, Font: EnumItem, FontSize: EnumItem}
local function configToRichtext(message: string, config: config): string
	local hex = config.Color:ToHex()
	local size = config.FontSize.Name:gsub("%D", "")
	local format = "<font color='#%s'><font size='%d'><font face='%s'>%s</font></font></font>"
	return format:format(hex, size, config.Font.Name, message)
end

Remote.OnClientEvent:Connect(function(message: string, config: config)
	if TextChatService.ChatVersion.Name == "LegacyChatService" then
		config.Text = message
		StarterGui:SetCore("ChatMakeSystemMessage", config)
	else
		local system: TextChannel = TextChatService.TextChannels.RBXSystem
		system:DisplaySystemMessage(configToRichtext(message, config))
	end
end)