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67 lines
1.8 KiB
CoffeeScript
67 lines
1.8 KiB
CoffeeScript
CocoClass = require 'lib/CocoClass'
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AudioPlayer = require 'lib/AudioPlayer'
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{me} = require 'lib/auth'
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CROSSFADE_LENGTH = 1500
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MUSIC_VOLUME = 0.6
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module.exports = class MusicPlayer extends CocoClass
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currentMusic: null
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standingBy: null
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subscriptions:
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'music-player:play-music': 'onPlayMusic'
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'audio-player:loaded': 'onAudioLoaded'
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constructor: ->
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super arguments...
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me.on 'change:music', @onMusicSettingChanged, @
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onAudioLoaded: ->
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@onPlayMusic(@standingBy) if @standingBy
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onPlayMusic: (e) ->
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src = e.file
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src = "/file#{e.file}#{AudioPlayer.ext}"
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if (not e.file) or src is @currentMusic?.src
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if e.play then @restartCurrentMusic() else @fadeOutCurrentMusic()
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return
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media = AudioPlayer.getStatus(src)
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if not media?.loaded
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AudioPlayer.preloadSound(src)
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@standingBy = e
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return
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@standingBy = null
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@fadeOutCurrentMusic()
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@startNewMusic(src) if e.play
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restartCurrentMusic: ->
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return unless @currentMusic
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@currentMusic.play('none', 0, 0, -1, 0.3)
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@updateMusicVolume()
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fadeOutCurrentMusic: ->
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return unless @currentMusic
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f = -> @stop()
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createjs.Tween.get(@currentMusic).to({volume: 0.0}, CROSSFADE_LENGTH).call(f)
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startNewMusic: (src) ->
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@currentMusic = createjs.Sound.play(src, 'none', 0, 0, -1, 0.3) if src
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return unless @currentMusic
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@currentMusic.volume = 0.0
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if me.get('music')
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createjs.Tween.get(@currentMusic).to({volume: MUSIC_VOLUME}, CROSSFADE_LENGTH)
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onMusicSettingChanged: ->
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@updateMusicVolume()
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updateMusicVolume: ->
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return unless @currentMusic
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createjs.Tween.removeTweens(@currentMusic)
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@currentMusic.volume = if me.get('music') then MUSIC_VOLUME else 0.0
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destroy: ->
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me.off 'change:music', @onMusicSettingChanged, @
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super()
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