Class: RGame::Engine::AudioDirector

Inherits:
Object
  • Object
show all
Defined in:
lib/rgame/engine/audio_director.rb

Overview

The registered handler that turns audio events into audio playback. Gameplay emits facts — :play_sound/:play_music/:stop_music with the asset id as payload — through the EventDispatcher, never touching the backend; this observer forwards each to an injected audio server (anything responding to #play_sound/#play_music/#stop_music: RGame::Core::Audio in a game, a recording fake in specs). Pure logic — it names no audio class, and the 'an audio server' contract in spec/support/shared_examples/ is the interface it calls, so a stand-in is checked against what the real device does.

Instance Method Summary collapse

Constructor Details

#initialize(audio) ⇒ AudioDirector

Returns a new instance of AudioDirector.



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# File 'lib/rgame/engine/audio_director.rb', line 14

def initialize(audio)
  @audio = audio
end

Instance Method Details

#subscribe(audio_bus = Engine::AudioBus) ⇒ Object

Subscribe to the audio events on a hub (the global EventDispatcher by default, but any object with #on). Returns self so callers can build-and-subscribe in one line. The director lives for the whole app, so nothing unsubscribes it.



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# File 'lib/rgame/engine/audio_director.rb', line 21

def subscribe(audio_bus = Engine::AudioBus)
  audio_bus.on_play_sound.connect { @audio.play_sound(it) }
  audio_bus.on_play_music.connect { @audio.play_music(it) }
  audio_bus.on_stop_music.connect { @audio.stop_music }
  self
end