original.js

function Client() {
  this.state = "loggedoff"
}

//attempt to say something, will attempt login every time and keep you at as far as you have gotten
Client.prototype.say = function(msg) {
  switch(this.state) {
    case "loggedoff":
      this.queueLogin()
    case "authenticated":
      this.queueVoiceRequest()
    case "voiced":
      this.queueMessage(msg)
      break
    //banned etc.
    default:
      throw "not allowed"
  }
}

statemachine.coffee

class Client

  constructor: ->
    @state = 'loggedoff'

  say: (msg) ->
    switch @state
      when 'loggedoff'     then @queueLogin()
      when 'authenticated' then @queueVoiceRequest()
      when 'voiced'        then @queueMessage()
      else 
        throw 'not allowed'