network_connection.rb

require 'ruby-event'

# General purpose wrapper for network connections
class NetworkConnection
  attr_reader :hostname, :port, :thread
  
  # Create a new event to be fired when we recieve data
  # from the server
  event :data_received

  # Creates a new instance of NetworkConnection with the
  # specified hostname and port
  def initialize(hostname, port)
    @hostname = hostname
    @port = port
  end
  # Connects to the specified hostname and port given in new
  def connect
    @thread = Thread.new do
      @socket = TCPSocket.new(@hostname, @port)
      @socket.each { |line|  data_received(line) }
    end
  end
  # Closes the socket
  def disconnect
    @socket.close
  end
  # Sends text to the socket
  def send(text)
    @socket.send(text + '\r\n', 0)
  end
end