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/* GNU Robbo
* Copyright (C) 2002-2010 The GNU Robbo Team (see AUTHORS).
*
* GNU Robbo 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; either version 2, or (at your option)
* any later version.
*
* GNU Robbo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the impled 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 GNU CC; see the file COPYING. If not, write to the
* Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
/*
* Defines
*/
#define SND_FULL 3
#define SND_NORM 2
#define SND_HALF 1
#define SND_MUTE 0
#define SND_QUIET 4
#define SND_CHANNELS 16
#define SND_RATE 44100
/*
* sound effects types
*/
#define SFX_BULLET 1
#define SFX_SCREW 2
#define SFX_BOMB 3
#define SFX_BOX 4
#define SFX_DOOR 5
#define SFX_GUN 6
#define SFX_KEY 7
#define SFX_SHOOT 8
#define SFX_BIRD 9
#define SFX_TELEPORT 10
#define SFX_ROBBO 11
#define SFX_CAPSULE 12
#define SFX_KILL 13
#define SFX_MAGNET 14
#define SFX_EXIT_OPEN 15
#define MUS_MAXSONGS 40
#define SND_SFX_DEFAULT_VOLUME 30
#define SND_MUS_DEFAULT_VOLUME SND_SFX_DEFAULT_VOLUME
struct snd_sample {
int initialized;
int type;
Mix_Chunk *s_sample;
char *fname;
char *rctag;
};
struct snd_music {
int present;
Mix_Music *music;
int playing;
char fname[128];
};
/*
* Variables
*/
extern int sound;
extern int temp_game_sound;
extern int sfx_vol;
extern int temp_sfx_vol;
/*
* if we do not support music, we assume, that volume is sfx_volume
*/
#ifdef HAVE_MUSIC
extern int volume;
#else
#define volume sfx_vol
#endif
/*
* Function prototypes
*/
void volume_up(void);
void volume_down(void);
void load_soundskin(char *fname);
void audio_init(void); /* this one initializes sound
* system - shuld be run only once
*/
void audio_destroy(void); /* this one destroys all audio
* content from the memory, and
* sets sound variable to 0 */
/*
* if you want to use audio again, set sound
* variable to 1 and call audio_init
*/
void load_samples(void); /* loads samples into memory */
void play_sound(int event, int vol); /* this one plays sounds */
/*
* vol can take 3 values: SND_NORM -
* sound is played with volume set in
* sfx_vol
*/
/*
* SND_HALF which is half of sfx_vol,
* and SND_MUTE - which means mute
* sound or no sound at all
*/
int audio_opened(); /* returns 0 if mixer is not initialized */
void audio_open(); /* initializes mixer should be the first
* thing before playing any sound */
void audio_close(); /* closes mixer - done befere exit */
#ifndef HAVE_MUSIC
#define music_stop()
#define make_playlist()
#define music_finished()
#define destroy_playlist()
#define play_music()
#else
void make_playlist(void);
void play_music(void);
void music_finished(void);
void destroy_playlist(void);
void music_stop(void);
#endif
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