An experiment in code design

wsForGameDemo.rb

# Adjust as needed to get the libraries loaded
$:.unshift '.'
$:.unshift './jleap-ng'

require 'jleap-ng'
require 'web-socket-server'
require 'game-demo-handlers'

require 'json'
require 'osc-ruby'

Thread.abort_on_exception = true

include Neurogami::Leap

class  GamerListener < BasicListener 

  include GameHandlerConditions

  def onInit controller
    @socket_server = SocketServer.new
    @socket_server.run

    @send_to_port = 8000  # default Renoise port
    @send_to_addy = "127.0.0.1"

    @osc_client = OSC::Client.new @send_to_addy, @send_to_port 
    @last_message_time = Time.now
    @min_osc_wait = 1.3

    @handlers = []
    load_handlers
  end

  def onFrame controller
    frame = controller.frame

    @handlers.each do |h|
      h.run frame
    end
  end 


  def message message_type, *args
    if self.respond_to? "send_#{message_type}"
      send "send_#{message_type}", *args
    else
      warn "Have on idea what to do with message type '#{message_type}'"
    end
  end

  def send_ws command, arg_ary=nil
    warn "'#{command}' #{arg_ary.inspect}"
    data = {}
    data['command'] = command
    data['args'] = arg_ary if arg_ary
    @socket_server.send data.to_json
  end

  def send_osc command, args_ary = []
    warn "****** send_osc for #{command} ******"
    tdelta = Time.now - @last_message_time 

    # Try to avoid sending a massive hail of OSC messages by requiring a wait period
    if tdelta <  @min_osc_wait
      warn "Too soon!  #{tdelta} < #{@min_osc_wait}"
      return
    end

    @last_message_time  = Time.now

    case command
    when  "grow"
      # Have Renoise play a "grow" sound, then turn the note off.  
      # The arguments for the "Trigger a Note-On" message:
      #  arg#1: instrument (-1 for the currently selected one)
      #  arg#2: track (-1 for the current one)
      #  arg#3: note value (0-119)
      #  arg#4: velocity (0-127)
      #
      #  /renoise/trigger/note_on number, number, number, number
      on_address  = "/renoise/trigger/note_on"
      off_address = "/renoise/trigger/note_off"
      instr = 0
      track = 1
      note = 75
      vel = 127

      on_msg  = OSC::Message.new on_address,  instr, track, note, vel
      off_msg = OSC::Message.new off_address, instr, track, note

      warn on_msg.inspect

      Thread.new do
        begin
          @osc_client.send on_msg
          sleep @min_osc_wait * 2  
          @osc_client.send off_msg
        rescue 
          warn "Error: #{$!}"
        end
      end

    else
      warn "This makes more sense if you are handling more than on possible command"
    end

  end

end



listener   = GamerListener.new
controller = Controller.new
controller.add_listener listener

warn  "Press Enter to quit..."

begin
  gets
rescue 
  warn "Error! #{$!}"
end

controller.remove_listener listener