local Emitter = {}

function Emitter.new()
    local emitobj = {}
    emitobj.Listeners = {}
    return setmetatable(emitobj, {__index = Emitter}) --Metatable __index just means when you try to access a nil index, itll try calling a func in Emitter table
end

function Emitter:Connect(Func)
    table.insert(self.Listeners, Func)
end

function Emitter:Emit(...) -- ... is variadic for unknown params
    for Index, Func in pairs(self.Listeners) do
        Func(...)
    end
end

return Emitter


--example usage:
local Emitter = require("Emitter")

local OnMessageEmitter = Emitter.new()

function OnMessageCallback(Message)
    print(Message)
end

OnMessageEmitter:Connect(OnMessageCallback)

--You can then keep track of the emitter and later do:
Emitter:Emit("This is a message")