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/*
   client/soundext.h
   This file is part of the Osirion project and is distributed under
   the terms of the GNU General Public License version 2
*/

#ifndef __INCLUDED_CLIENT_SOUNDEXT_H__
#define __INCLUDED_CLIENT_SOUNDEXT_H__

#include "core/extension.h"
#include "core/cvar.h"

#include <list>
#include <string>

namespace client
{

extern core::Cvar *snd_engines;
extern core::Cvar *snd_doppler;
extern core::Cvar *snd_volume;

/// a sound playing
class Sound {
public:
	Sound();
	Sound(const std::string & name);
	
	inline size_t buffer() const {
		return sound_buffer;
	}
	
	inline size_t source() const {
		return sound_source;
	}
	
	inline math::Vector3f const & location() {
		return sound_location;
	}
	
	inline math::Vector3f & get_location() {
		return sound_location;
	}
	
	inline void set_location(const math::Vector3f & location) {
		sound_location.assign(location);
	}
	
	inline void set_source(size_t source) {
		sound_source = source;
	}
	
	inline void set_buffer(size_t buffer) {
		sound_buffer = buffer;
	}
	
private:
	size_t 		sound_buffer;
	size_t 		sound_source;
	
	math::Vector3f	sound_location;
};

/// the sound extension of an entity
class SoundExt : public core::Extension
{
public:
	SoundExt(core::Entity *Entity);
	~SoundExt();

	virtual void frame(float elapsed);

	typedef std::list<client::Sound *> Sounds;
private:

	void clear();

	/// index of the audio buffer containing the thruster sound loop
	size_t			state_thusterloopbuffer;
	/// index of the audio buffer containing the impulse sound loop
	size_t			state_impulseloopbuffer;
	/// index of the audio buffer containing the impulse drive start sound
	size_t			state_impulsestartbuffer;
	/// index of the audio buffer containing the impulse drive stop sound
	size_t			state_impulsestopbuffer;

	/// index of the audio buffer currently looping in enginesource
	size_t			state_engineloopbuffer;
	/// index of the audio source used to play the engine sound loop
	size_t			state_engineloopsource;
	/// index of the audio last played on the event source
	size_t			state_engineeventbuffer;
	/// index of the audio source used to play engine sound events
	size_t			state_engineeventsource;
	
	Sounds			state_soundlist;
};

/// render listener sound
void render_listener_sound();

/// render sound for a single entity
void render_entity_sound(core::Entity *entity);

}
//namespace client
//
#endif // __INCLUDED_CLIENT_CLIENTEXT_H__