Class: Termfront::AudioManager

Inherits:
Object
  • Object
show all
Defined in:
lib/termfront/audio_manager.rb

Defined Under Namespace

Classes: Player

Constant Summary collapse

WHICH_CACHE = 
{}

Instance Method Summary collapse

Constructor Details

#initialize ⇒ AudioManager

Returns a new instance of AudioManager.



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# File 'lib/termfront/audio_manager.rb', line 13

def initialize
  @manifest = load_manifest
  @bgm_player = detect_player(%w[ffplay afplay paplay aplay], prefer_loop: true)
  @loop_se_player = detect_player(%w[ffplay afplay paplay aplay], prefer_loop: true)
  @se_player = detect_player(%w[paplay afplay aplay ffplay], prefer_loop: false)
  @mutex = Mutex.new
  @bgm_pid = nil
  @bgm_thread = nil
  @bgm_stop = false
  @loop_se_pid = nil
  @loop_se_thread = nil
  @loop_se_stop = false
  @loop_se_name = nil
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/termfront/audio_manager.rb', line 145

def close
  stop_bgm
  stop_loop_se
end

#play_bgm(name) ⇒ Object 



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# File 'lib/termfront/audio_manager.rb', line 28

def play_bgm(name)
  path = asset_path(:bgm, name)
  return unless path

  stop_bgm

  @mutex.synchronize do
    @bgm_stop = false
    @bgm_thread = Thread.new do
      if @bgm_player&.supports_loop
        @bgm_pid = spawn_player(@bgm_player, path, loop_playback: true)
        wait_for_channel(:bgm)
      else
        loop do
          break if channel_stopped?(:bgm)

          start = Process.clock_gettime(Process::CLOCK_MONOTONIC)
          @bgm_pid = spawn_player(@bgm_player, path, loop_playback: false)
          break unless @bgm_pid

          wait_for_channel(:bgm)
          break if channel_stopped?(:bgm)
          break if Process.clock_gettime(Process::CLOCK_MONOTONIC) - start < 0.5
        end
      end
    rescue StandardError
      nil
    ensure
      @mutex.synchronize do
        @bgm_pid = nil
        @bgm_thread = nil
      end
    end
  end
end

#play_loop_se(name) ⇒ Object 



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# File 'lib/termfront/audio_manager.rb', line 87

def play_loop_se(name)
  path = asset_path(:loop_se, name) || asset_path(:se, name)
  return unless path

  @mutex.synchronize do
    return if @loop_se_name == name && @loop_se_thread&.alive?
  end

  stop_loop_se

  @mutex.synchronize do
    @loop_se_stop = false
    @loop_se_name = name
    @loop_se_thread = Thread.new do
      if @loop_se_player&.supports_loop
        @loop_se_pid = spawn_player(@loop_se_player, path, loop_playback: true)
        wait_for_channel(:loop_se)
      else
        loop do
          break if channel_stopped?(:loop_se)

          start = Process.clock_gettime(Process::CLOCK_MONOTONIC)
          @loop_se_pid = spawn_player(@loop_se_player, path, loop_playback: false)
          break unless @loop_se_pid

          wait_for_channel(:loop_se)
          break if channel_stopped?(:loop_se)
          break if Process.clock_gettime(Process::CLOCK_MONOTONIC) - start < 0.5
        end
      end
    rescue StandardError
      nil
    ensure
      @mutex.synchronize do
        @loop_se_pid = nil
        @loop_se_thread = nil
        @loop_se_name = nil
      end
    end
  end
end

#play_se(name) ⇒ Object 



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# File 'lib/termfront/audio_manager.rb', line 78

def play_se(name)
  path = asset_path(:se, name)
  return unless path && @se_player

  spawn_player(@se_player, path, loop_playback: false, detach: true)
rescue StandardError
  nil
end

#stop_bgm ⇒ Object 



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# File 'lib/termfront/audio_manager.rb', line 64

def stop_bgm
  thread = nil
  pid = nil

  @mutex.synchronize do
    @bgm_stop = true
    thread = @bgm_thread
    pid = @bgm_pid
  end

  terminate_process(pid) if pid
  thread&.join(0.5)
end

#stop_loop_se(name = nil) ⇒ Object 



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# File 'lib/termfront/audio_manager.rb', line 129

def stop_loop_se(name = nil)
  thread = nil
  pid = nil

  @mutex.synchronize do
    return if name && @loop_se_name != name

    @loop_se_stop = true
    thread = @loop_se_thread
    pid = @loop_se_pid
  end

  terminate_process(pid) if pid
  thread&.join(0.5)
end