text: /*************************************************************************/
  /*  sample_player_2d.h                                                   */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
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  /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  
  #ifndef SAMPLE_PLAYER_2D_H
  #define SAMPLE_PLAYER_2D_H
  
  #include "scene/2d/sound_player_2d.h"
  #include "scene/resources/sample_library.h"
  
  class SamplePlayer2D : public SoundPlayer2D {
  
  	OBJ_TYPE(SamplePlayer2D, SoundPlayer2D);
  
  public:
  	enum {
  
  		INVALID_VOICE = SpatialSoundServer::SOURCE_INVALID_VOICE,
  		NEXT_VOICE = SpatialSoundServer::SOURCE_NEXT_VOICE
  	};
  
  	typedef int VoiceID;
  
  private:
  	Ref<SampleLibrary> library;
  	int polyphony;
  	String played_back;
  	float random_pitch_scale;
  
  protected:
  	bool _set(const StringName &p_name, const Variant &p_value);
  	bool _get(const StringName &p_name, Variant &r_ret) const;
  	void _get_property_list(List<PropertyInfo> *p_list) const;
  
  	void _notification(int p_what);
  
  	static void _bind_methods();
  
  public:
  	void set_sample_library(const Ref<SampleLibrary> &p_library);
  	Ref<SampleLibrary> get_sample_library() const;
  
  	void set_polyphony(int p_voice_count);
  	int get_polyphony() const;
  
  	VoiceID play(const String &p_sample, int p_voice = NEXT_VOICE);
  	//voices
  	void voice_set_pitch_scale(VoiceID p_voice, float p_pitch_scale);
  	void voice_set_volume_scale_db(VoiceID p_voice, float p_volume_db);
  
  	bool is_voice_active(VoiceID p_voice) const;
  	void stop_voice(VoiceID p_voice);
  	void stop_all();
  
  	void set_random_pitch_scale(float p_scale);
  	float get_random_pitch_scale() const;
  
  	String get_configuration_warning() const;
  
  	SamplePlayer2D();
  	~SamplePlayer2D();
  };
  
  #endif // SAMPLE_PLAYER_2D_H
  