//     ____                _       __               
//    / __ )____  _____   | |     / /___ ___________
//   / __  / __ \/ ___/   | | /| / / __ `/ ___/ ___/
//  / /_/ / /_/ (__  )    | |/ |/ / /_/ / /  (__  ) 
// /_____/\____/____/     |__/|__/\__,_/_/  /____/  
//                                              
//       A futuristic real-time strategy game.
//          This file is part of Bos Wars.
//
/**@name sound.h - The sound header file. */
//
//      (c) Copyright 1998-2007 by Lutz Sammer, Fabrice Rossi, and Jimmy Salmon
//
//      This program is free software; you can redistribute it and/or modify
//      it under the terms of the GNU General Public License as published by
//      the Free Software Foundation; only version 2 of the License.
//
//      This program is distributed in the hope that it will be useful,
//      but WITHOUT ANY WARRANTY; without even the implied warranty of
//      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//      GNU General Public License for more details.
//
//      You should have received a copy of the GNU General Public License
//      along with this program; if not, write to the Free Software
//      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
//      02111-1307, USA.

#ifndef __SOUND_H__
#define __SOUND_H__

//@{

/*----------------------------------------------------------------------------
--  Includes
----------------------------------------------------------------------------*/

#include <vector>

#include "unit.h"
#include "unitsound.h"
#include "player.h"

/*----------------------------------------------------------------------------
--  Declarations
----------------------------------------------------------------------------*/

class CUnit;
class Missile;
class CSample;
class LuaActionListener;

/*----------------------------------------------------------------------------
--  Definitons
----------------------------------------------------------------------------*/

#define MaxSampleVolume 255  /// Maximum sample volume
#define NO_SOUND 0           /// No valid sound ID

/**
**  Global game sounds, not associated to any unit-type
*/
class GameSound
{
public:
	SoundConfig PlacementError;        /// used by ui
	SoundConfig PlacementSuccess;      /// used by ui
	SoundConfig Click;                 /// used by ui
	SoundConfig Docking;               /// ship reaches coast
	SoundConfig BuildingConstruction;  /// building under construction
	SoundConfig WorkComplete;          /// building ready
	SoundConfig Rescue;                /// rescue units
	SoundConfig ChatMessage;           /// chat message
};

/**
**  Sound definition.
*/
class CSound {
public:
	CSound() : Range(0), Number(0)
	{
		memset(&Sound, 0, sizeof(Sound));
	}
	~CSound();

	/**
	**  Range is a multiplier for ::DistanceSilent.
	**  255 means infinite range of the sound.
	*/
	unsigned char Range;        /// Range is a multiplier for DistanceSilent
	unsigned char Number;       /// single, group, or table of sounds.
	union {
		CSample *OneSound;       /// if it's only a simple sound
		CSample **OneGroup;      /// when it's a simple group
		struct {
			CSound *First;       /// first group: selected sound
			CSound *Second;      /// second group: annoyed sound
		} TwoGroups;             /// when it's a double group
	} Sound;
};

/**
** A possible value for Number in the Sound struct: means a simple sound
*/
#define ONE_SOUND 0
/**
** A possible value for Number in the Sound struct: means a double group (for
** selection/annoyed sounds)
*/
#define TWO_GROUPS 1

/**
** the range value that makes a sound volume distance independent
*/
#define INFINITE_SOUND_RANGE 255
/**
** the maximum range value
*/
#define MAX_SOUND_RANGE 254

/**
**  Origin of a sound
*/
struct Origin {
	const void *Base;   /// pointer on a Unit
	unsigned Id;        /// unique identifier (if the pointer has been shared)
};


/*----------------------------------------------------------------------------
--  Variables
----------------------------------------------------------------------------*/

extern GameSound GameSounds;  /// Game sound configuration

extern bool CallbackMusic;  /// flag true callback ccl if stops

	/// global range control (max cut off distance for sound)
extern int DistanceSilent;

/*----------------------------------------------------------------------------
--  Functions
----------------------------------------------------------------------------*/

	/// Play a unit sound
extern void PlayUnitSound(const CUnit *unit, UnitVoiceGroup unit_voice_group);
	/// Play a unit sound
extern void PlayUnitSound(const CUnit *unit, CSound *sound);
	/// Play a missile sound
extern void PlayMissileSound(const Missile *missile, CSound *sound);
	/// Play a game sound
extern void PlayGameSound(CSound *sound, unsigned char volume);

	/// Play a sound file
extern int PlayFile(const std::string &name, LuaActionListener *listener = NULL);

	/// Modify the range of a given sound.
extern void SetSoundRange(CSound *sound, unsigned char range);

	/// Register a sound (can be a simple sound or a group)
extern CSound *RegisterSound(const char *files[], unsigned number);

	///  Create a special sound group with two sounds
extern CSound *RegisterTwoGroups(CSound *first, CSound *second);

	/// Initialize client side of the sound layer.
extern void InitSoundClient(void);


// music.cpp

	/// Check if music is finished and play the next song
extern void CheckMusicFinished(bool force = false);

	/// Initialize music
extern void InitMusic(void);

	/// Turn music stopped callback on
#define CallbackMusicOn() \
	CallbackMusic = true;
	/// Turn music stopped callback off
#define CallbackMusicOff() \
	CallbackMusic = false;


// sound_id.cpp

	/// Map sound to identifier
extern void MapSound(const std::string &sound_name, CSound *id);
	/// Get the sound id bound to an identifier
extern CSound *SoundForName(const std::string &sound_name);
	/// Make a sound bound to identifier
extern CSound *MakeSound(const std::string &sound_name, const char *file[], int nb);
	/// Make a sound group bound to identifier
extern CSound *MakeSoundGroup(const std::string &name, CSound *first, CSound *second);
#ifdef DEBUG
extern void FreeSounds();
#endif


//@}

#endif  // !__SOUND_H__