codecombat/app/views/game-menu/ChooseHeroView.coffee

CocoView = require 'views/kinds/CocoView'
template = require 'templates/game-menu/choose-hero-view'
{me} = require 'lib/auth'
ThangType = require 'models/ThangType'
CocoCollection = require 'collections/CocoCollection'
SpriteBuilder = require 'lib/sprites/SpriteBuilder'
AudioPlayer = require 'lib/AudioPlayer'

module.exports = class ChooseHeroView extends CocoView
  id: 'choose-hero-view'
  className: 'tab-pane'
  template: template

  events:
    'click #restart-level-confirm-button': -> Backbone.Mediator.publish 'level:restart', {}
    'slide.bs.carousel #hero-carousel': 'onHeroChanged'
    'change #option-code-language': 'onCodeLanguageChanged'

  shortcuts:
    'left': -> @$el.find('#hero-carousel').carousel('prev') if @heroes.models.length and not @$el.hasClass 'secret'
    'right': -> @$el.find('#hero-carousel').carousel('next') if @heroes.models.length and not @$el.hasClass 'secret'

  constructor: (options) ->
    super options
    @heroes = new CocoCollection([], {model: ThangType})
    @heroes.url = '/db/thang.type?view=heroes&project=original,name,slug,soundTriggers'
    @supermodel.loadCollection(@heroes, 'heroes')
    @stages = {}

  destroy: ->
    for heroIndex, stage of @stages
      createjs.Ticker.removeEventListener "tick", stage
      stage.removeAllChildren()
    super()

  getRenderData: (context={}) ->
    context = super(context)
    context.heroes = @heroes.models
    context.level = @options.level
    context.codeLanguages = [
      {id: 'python', name: 'Python'}
      {id: 'javascript', name: 'JavaScript'}
      {id: 'coffeescript', name: 'CoffeeScript'}
      {id: 'clojure', name: 'Clojure (Experimental)'}
      {id: 'lua', name: 'Lua (Experimental)'}
      {id: 'io', name: 'Io (Experimental)'}
    ]
    context.codeLanguage = @codeLanguage = @options.session.get('codeLanguage') ? me.get('aceConfig')?.language ? 'python'
    context.heroInfo = temporaryHeroInfo
    context

  afterRender: ->
    super()
    return unless @supermodel.finished()
    heroes = @heroes.models
    @$el.find('.hero-indicator').each ->
      heroID = $(@).data('hero-id')
      hero = _.find heroes, (hero) -> hero.get('original') is heroID
      $(@).find('.hero-avatar').css('background-image', "url(#{hero.getPortraitURL()})").tooltip()
      _.defer => $(@).addClass 'initialized'
    @canvasWidth = 313  # @$el.find('canvas').width() # unreliable, whatever
    @canvasHeight = @$el.find('canvas').height()
    heroConfig = @options.session.get('heroConfig') ? me.get('heroConfig') ? {}
    heroIndex = Math.max 0, _.findIndex(heroes, ((hero) -> hero.get('original') is heroConfig.thangType))
    @$el.find(".hero-item:nth-child(#{heroIndex + 1}), .hero-indicator:nth-child(#{heroIndex + 1})").addClass('active')
    @onHeroChanged direction: null, relatedTarget: @$el.find('.hero-item')[heroIndex]

  onHeroChanged: (e) ->
    direction = e.direction  # 'left' or 'right'
    heroItem = $(e.relatedTarget)
    hero = _.find @heroes.models, (hero) -> hero.get('original') is heroItem.data('hero-id')
    return console.error "Couldn't find hero from heroItem:", heroItem unless hero
    heroIndex = heroItem.index()
    @$el.find('.hero-indicator').each ->
      distance = Math.min 3, Math.abs $(@).index() - heroIndex
      size = 100 - (50 / 3) * distance
      $(@).css width: size, height: size, top: -(100 - size) / 2
    heroInfo = temporaryHeroInfo[hero.get('slug')]
    locked = heroInfo.status is 'Locked'
    hero = @loadHero hero, heroIndex
    @preloadHero heroIndex + 1
    @preloadHero heroIndex - 1
    @selectedHero = hero unless locked
    Backbone.Mediator.publish 'level:hero-selection-updated', hero: @selectedHero
    $('#choose-inventory-button').prop 'disabled', locked

  getFullHero: (original) ->
    url = "/db/thang.type/#{original}/version"
    if fullHero = @supermodel.getModel url
      return fullHero
    fullHero = new ThangType()
    fullHero.setURL url
    fullHero = (@supermodel.loadModel fullHero, 'thang').model
    fullHero

  preloadHero: (heroIndex) ->
    return unless hero = @heroes.models[heroIndex]
    @loadHero hero, heroIndex, true

  loadHero: (hero, heroIndex, preloading=false) ->
    createjs.Ticker.removeEventListener 'tick', stage for stage in _.values @stages
    createjs.Ticker.setFPS 30  # In case we paused it from being inactive somewhere else
    if stage = @stages[heroIndex]
      unless preloading
        _.defer -> createjs.Ticker.addEventListener 'tick', stage  # Deferred, otherwise it won't start updating for some reason.
        @playSelectionSound hero
      return hero
    fullHero = @getFullHero hero.get 'original'
    onLoaded = =>
      return unless canvas = $(".hero-item[data-hero-id='#{fullHero.get('original')}'] canvas")
      canvas.prop width: @canvasWidth, height: @canvasHeight
      builder = new SpriteBuilder(fullHero)
      movieClip = builder.buildMovieClip(fullHero.get('actions').attack?.animation ? fullHero.get('actions').idle.animation)
      movieClip.scaleX = movieClip.scaleY = canvas.prop('height') / 120  # Average hero height is ~110px tall at normal resolution
      if fullHero.get('name') in ['Knight', 'Robot Walker']  # These are too big, so shrink them.
        movieClip.scaleX *= 0.7
        movieClip.scaleY *= 0.7
      movieClip.regX = -fullHero.get('positions').registration.x
      movieClip.regY = -fullHero.get('positions').registration.y
      movieClip.x = canvas.prop('width') * 0.5
      movieClip.y = canvas.prop('height') * 0.925  # This is where the feet go.
      stage = new createjs.Stage(canvas[0])
      @stages[heroIndex] = stage
      stage.addChild movieClip
      stage.update()
      movieClip.gotoAndPlay 0
      unless preloading
        createjs.Ticker.addEventListener 'tick', stage
        @playSelectionSound hero
    if fullHero.loaded
      _.defer onLoaded
    else
      @listenToOnce fullHero, 'sync', onLoaded
    fullHero

  playSelectionSound: (hero) ->
    return if @$el.hasClass 'secret'
    @currentSoundInstance?.stop()
    return unless sounds = hero.get('soundTriggers')?.selected
    return unless sound = sounds[Math.floor Math.random() * sounds.length]
    name = AudioPlayer.nameForSoundReference sound
    AudioPlayer.preloadSoundReference sound
    @currentSoundInstance = AudioPlayer.playSound name, 1
    @currentSoundInstance

  onCodeLanguageChanged: (e) ->
    @codeLanguage = @$el.find('#option-code-language').val()
    @codeLanguageChanged = true

  onShown: ->
    # Called when we switch tabs to this within the modal

  onHidden: ->
    # Called when the modal itself is dismissed


temporaryHeroInfo =
  captain:
    fullName: 'Captain Anya Weston'
    weapons: 'Razor Discs'
    status: 'Available'
    health: '35'
    speed: '4 m/s'

  knight:
    fullName: 'Tharin Thunderfist'
    weapons: 'Swords'
    status: 'Available'
    health: '35'
    speed: '4 m/s'

  thoktar:
    fullName: 'Thoktar the Devourer'
    weapons: 'Magic'
    status: 'Locked'
    health: '???'
    speed: '???'

  equestrian:
    fullName: 'Rider Reynaldo'
    weapons: 'Axes'
    status: 'Locked'
    health: '???'
    speed: '???'

  'potion-master':
    fullName: 'Master Snake'
    weapons: 'Magic'
    status: 'Locked'
    health: '???'
    speed: '???'

  librarian:
    fullName: 'Hushbaum'
    weapons: 'Magic'
    status: 'Locked'
    health: '???'
    speed: '???'

  'robot-walker':
    fullName: '???'
    weapons: '???'
    status: 'Locked'
    health: '???'
    speed: '???'

  'michael-heasell':
    fullName: '???'
    weapons: '???'
    status: 'Locked'
    health: '???'
    speed: '???'

  'ian-elliott':
    fullName: '???'
    weapons: '???'
    status: 'Locked'
    health: '???'
    speed: '???'