example.js

var d = require('domnode-dom')
  , actionable = require('actionable')
  , through = require('through')
  , raf = require('raf')

var actions = actionable({
    forward: Boolean
  , jump: Boolean
  , back: Boolean
  , left: Boolean
  , right: Boolean
  , nextweapon: Event
})

var gamepadBindings = actions.binding({
      forward: ['joystick-up', 'dpad-up']
    , backward: ['joystick-down', 'dpad-down']
    })
  , keyboardBindings = actions.binding({
      forward: 'W'
    , backward: 'S'
    , jump: '<Space>'
    , crawl: '<Ctrl>' 
    })

if(game.wantsKeyboard) {
  d.createReadStream(document.body, 'keydown')
    .pipe(through(function(event) { return {up: this.queue(event.keyCode)} }))
    .pipe(keyboardBindings)

  d.createReadStream(document.body, 'keyup')
    .pipe(through(function(event) { return {down: this.queue(event.keyCode)} }))
    .pipe(keyboardBindings)
}

if(game.wantsGamePad) {
  gamepad.createReadStream('down')
    .pipe(through(function(event) { return {down: this.queue(event.button)} }))
    .pipe(gamepadBindings)
  
  gamepad.createReadStream('up')
    .pipe(through(function(event) { return {up: this.queue(event.button)} }))
    .pipe(gamepadBindings)
}

raf(document.body).on('data', function(dt) {
  if(actions.forward) player.vec = FowardVector * (dt / 1000)
  if(actions.jump && player.jumptime > 0) player.vec += JumpVector * (dt / 1000)
})

actions.pipe(through(function(ev) {
    return JSON.stringify({
      action: ev.action
    , start: ev.start
    , duration: ev.duration
    })
  }))
  .pipe(fs.createWriteStream('replay'))