audio_source.h

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#pragma once
 
#include <engine/audio/sound/instance/sound_instance.h>
#include <engine/audio/sound/resource/sound_resource.h>
#include <engine/public/component.h>
 
#include <memory>
#include <optional>
#include <string>
 
class AudioSource : public Component {
 public:
  explicit AudioSource(std::string audio_file_path, bool play_on_awake = true,
                       bool loop = false, float volume = 1.0f);
  ~AudioSource() override = default;
 
  void update(float dt) override;
  void on_attach() override;
  void on_detach() override;
 
  void play(bool loop = false);
  void stop();
 
  [[nodiscard]] const std::string& audio_file_path() const noexcept;
  void audio_file_path(const std::string& path) noexcept;
 
  [[nodiscard]] float volume() const noexcept;
  void volume(float value) noexcept;
 
  [[nodiscard]] bool loop() const noexcept;
  void loop(bool value) noexcept;
 
  [[nodiscard]] bool play_on_awake() const noexcept;
  void play_on_awake(bool value) noexcept;
 
  [[nodiscard]] std::string audio_name() const noexcept;
 
  [[nodiscard]] std::optional<std::reference_wrapper<SoundInstance>> instance()
      const noexcept;
 
  std::string type_name() const override;
 
 private:
  std::shared_ptr<SoundResource> get_or_register_resource();
  std::optional<std::reference_wrapper<SoundInstance>> instance_opt_;
 
  std::string audio_file_path_;
  std::string audio_name_;
  float volume_;
 
  bool loop_;
  bool play_on_awake_;
};