sound.c

   1
   2 /**
   3  *
   4  * Tennix! SDL Port
   5  * Copyright (C) 2003, 2007 Thomas Perl <thp@perli.net>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  20  * MA  02110-1301, USA.
  21  *
  22  **/
  23
  24 #include "tennix.h"
  25 #include "sound.h"
  26
  27 static char datadir[MAXPATHLEN];
  28
  29 void init_sound( const char *data_dir) {
  30     strcpy( datadir, data_dir);
  31
  32     if( Mix_OpenAudio( 44100, AUDIO_S16SYS, 2, 1024) < 0) {
  33         fprintf( stderr, "Error initializing SDL_mixer: %s\n", Mix_GetError());
  34     }
  35 }
  36
  37 void play_sample( const char* filename, unsigned char channel, int loop) {
  38     static Mix_Chunk* chunks[CH_MAX] = { 0 };
  39     char fn[MAXPATHLEN];
  40
  41     strcpy( fn, datadir);
  42     strcat( fn, filename);
  43
  44     if( chunks[channel] != NULL) {
  45         Mix_FreeChunk( chunks[channel]);
  46         chunks[channel] = NULL;
  47     }
  48
  49     chunks[channel] = Mix_LoadWAV( fn);
  50     if( chunks[channel] != NULL) {
  51         Mix_PlayChannel( channel, chunks[channel], loop);
  52     } else {
  53         fprintf( stderr, "Error: %s\n", Mix_GetError());
  54     }
  55 }
  56
  57 void fade_out( unsigned char channel) {
  58     Mix_FadeOutChannel( channel, FADE_OUT_MS);
  59 }
  60
  61 void sound_ground() {
  62     const char* sounds[] = { "ground1.wav", "ground2.wav" };
  63     play_sample( sounds[rand()%2], CH_GROUND, 0);
  64 }
  65
  66 void sound_racket( unsigned char powershot) {
  67     const char* sounds[] = { "racket1.wav", "racket2.wav" };
  68     if( powershot) {
  69         play_sample( "powershot.wav", CH_RACKET, 0);
  70     } else {
  71         play_sample( sounds[rand()%2], CH_RACKET, 0);
  72     }
  73 }
  74
  75 void sound_audience() {
  76     play_sample( "audience.wav", CH_AUDIENCE, -1);
  77 }
  78
  79 void sound_applause() {
  80     play_sample( "applause.wav", CH_APPLAUSE, 0);
  81 }
  82
  83 void sound_applause_stop() {
  84     fade_out( CH_APPLAUSE);
  85 }
  86