gistfile1.rb

require 'rubygems'
require 'em-websocket'

class ClientConnection
  attr_accessor :socket, :name
  
  def initialize(args)
    self.socket = args[:socket]
    self.name   = args[:name] 
  end
  
  def send(message)
    self.socket.send(message)
  end
end

clients = []
 
 
EventMachine::WebSocket.start(:host => "0.0.0.0", :port => 8080) do |ws|
  ws.onopen    {
    puts 'Connected'
    new_client = ClientConnection.new({:socket => ws, :name => 'JohnDoe'})
    clients << new_client
    clients.each{|c| c.send "{\"message\": \"Someone Joined\", \"user\":\"#{new_client.name}\"}"}
    }
  ws.onmessage { |msg| clients.each{|c| c.send "{\"message\": \"#{msg}\"}" } }
  ws.onclose   { puts 'Disconnected' }
end