src/music.c

   1 /*
   2    Copyright (C) Prikol Software 1996-1997
   3    Copyright (C) Aleksey Volynskov 1996-1997
   4    Copyright (C) <ARembo@gmail.com> 2011
   5
   6    This file is part of the Doom2D:Rembo project.
   7
   8    Doom2D:Rembo is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License version 2 as
  10    published by the Free Software Foundation.
  11
  12    Doom2D:Rembo 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, see <http://www.gnu.org/licenses/> or
  19    write to the Free Software Foundation, Inc.,
  20    51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  21 */
  22
  23 #include "glob.h"
  24 #include "files.h"
  25 #include "music.h"
  26 #include "error.h"
  27 #include "game.h"
  28 #include <SDL.h>
  29 #include <SDL_mixer.h>
  30
  31 short mus_vol = 50;
  32 char music_random = ON;
  33 int music_time = 3;
  34 int music_fade = 5;
  35
  36 static Uint32 muscount;
  37 static Mix_Music * muslo;
  38 static int musdisabled = 1;
  39 static int volsetcount = 0;
  40
  41 void S_initmusic (void) {
  42     if (!SDL_WasInit(SDL_INIT_AUDIO)) {
  43         if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
  44             fprintf(stderr, "\nUnable to initialize audio:  %s\n", SDL_GetError());
  45             musdisabled=1;
  46             return;
  47         }
  48
  49         if (Mix_OpenAudio(22050, AUDIO_S16, 1, 1000) < 0) {
  50             fprintf(stderr, "Error initializing SDL_mixer: %s\n", Mix_GetError());
  51             musdisabled=1;
  52             return;
  53         }
  54     }
  55
  56     muslo=NULL;
  57
  58     muscount=0;
  59
  60     musdisabled = (mus_vol==0);
  61
  62    S_volumemusic(mus_vol);
  63 }
  64
  65 void S_donemusic (void) {
  66     if (SDL_WasInit(SDL_INIT_AUDIO)) {
  67         F_freemus();
  68         Mix_CloseAudio();
  69         SDL_QuitSubSystem(SDL_INIT_AUDIO);
  70     }
  71 }
  72
  73 void S_startmusic (int time) {
  74     if (musdisabled) return;
  75     Mix_PlayMusic(muslo, -1);
  76     Mix_VolumeMusic(mus_vol);
  77     muscount=time*60*1000/DELAY;
  78 }
  79
  80 void S_stopmusic (void) {
  81     if (musdisabled) return;
  82     Mix_HaltMusic();
  83     muscount = 0;
  84 }
  85
  86 void S_volumemusic (int v) {
  87     if (musdisabled) return;
  88     mus_vol = v;
  89     if (mus_vol>128) mus_vol=128;
  90     if (mus_vol<0) mus_vol=0;
  91     if (mus_vol==0 && Mix_PlayingMusic()) {
  92         S_stopmusic();
  93     }
  94     else if (mus_vol>0 && !Mix_PlayingMusic()) {
  95         S_startmusic(music_time);
  96     }
  97     else {
  98         Mix_VolumeMusic(v);
  99     }
 100 }
 101
 102 static struct {
 103     Uint8 ascii;
 104     Uint8 asciilc;
 105     char *ch;
 106 } atrans[] = {
 107     {0x80, 0xA0, "A"},//А
 108     {0x81, 0xA1, "B"},//Б
 109     {0x82, 0xA2, "V"},//В
 110     {0x83, 0xA3, "G"},//Г
 111     {0x84, 0xA4, "D"},//Д
 112     {0x85, 0xA5, "E"},//Е
 113     {0x86, 0xA6, "ZH"},//Ж
 114     {0x87, 0xA7, "Z"},//З
 115     {0x88, 0xA8, "I"},//И
 116     {0x89, 0xA9, "J"},//Й
 117     {0x8A, 0xAA, "K"},//К
 118     {0x8B, 0xAB, "L"},//Л
 119     {0x8C, 0xAC, "M"},//М
 120     {0x8D, 0xAD, "N"},//Н
 121     {0x8E, 0xAE, "O"},//О
 122     {0x8F, 0xAF, "P"},//П
 123     {0x90, 0xE0, "R"},//Р
 124     {0x91, 0xE1, "S"},//С
 125     {0x92, 0xE2, "T"},//Т
 126     {0x93, 0xE3, "U"},//У
 127     {0x94, 0xE4, "F"},//Ф
 128     {0x95, 0xE5, "H"},//Х
 129     {0x96, 0xE6, "C"},//Ц
 130     {0x97, 0xE7, "CH"},//Ч
 131     {0x98, 0xE8, "SH"},//Ш
 132     {0x99, 0xE9, "SCH"},//Щ
 133     {0x9A, 0xEA, "X"},//Ъ
 134     {0x9B, 0xEB, "Y"},//Ы
 135     {0x9C, 0xEC, "J"},//Ь
 136     {0x9D, 0xED, "E"},//Э
 137     {0x9E, 0xEE, "JU"},//Ю
 138     {0x9F, 0xEF, "JA"},//Я
 139     {0}
 140 };
 141
 142 static char *get_trans_char (Uint8 c)
 143 {
 144     int i = 0;
 145     while (atrans[i].ascii) {
 146
 147         if (atrans[i].ascii == c || atrans[i].asciilc == c) {
 148             return atrans[i].ch;
 149         }
 150         i++;
 151     }
 152     return NULL;
 153 }
 154
 155 static void trans_ascii_str (char *dest, char *src)
 156 {
 157     char *p = dest;
 158     int i;
 159     for (i=0; i<strlen(src); i++) {
 160         char *ch = get_trans_char(src[i]);
 161         if (ch) {
 162             strcpy(p,ch);
 163             p+=strlen(ch);
 164         }
 165         else {
 166             strncpy(p,&src[i],1);
 167             p++;
 168         }
 169     }
 170     *p='\0';
 171 }
 172
 173 void F_loadmus (char n[8]) {
 174     if (musdisabled) return;
 175     char f[50];
 176     char name[50];
 177 #ifndef WIN32
 178     strcpy(f, "/usr/share/doom2d-rembo/music/");
 179 #else
 180     strcpy(f, "music\\");
 181 #endif
 182     int l = strlen(f);
 183     strncpy(&f[l], n, 8);
 184     f[l+8]='\0';
 185     trans_ascii_str(name, f);
 186     muslo = Mix_LoadMUS(name);
 187     if (muslo == NULL)
 188     {
 189 #ifndef WIN32
 190         strcpy(f, "music/");
 191         int l = strlen(f);
 192         strncpy(&f[l], n, 8);
 193         f[l+8]='\0';
 194         trans_ascii_str(name, f);
 195         muslo = Mix_LoadMUS(name);
 196 #endif
 197     }
 198     if (!muslo) logo("Music not found '%s'\n", name);
 199
 200 }
 201
 202 void F_freemus (void) {
 203     if (musdisabled) return;
 204     if (muslo) {
 205         Mix_HaltMusic();
 206         Mix_FreeMusic(muslo);
 207     }
 208     muslo = NULL;
 209 }
 210
 211 void S_updatemusic (void) {
 212     if (musdisabled) return;
 213
 214     //періодично встановлюю гучність музикі, так як вона сама підвищується до максимуму через певний час
 215     volsetcount++;
 216     if (volsetcount%(5*1000/DELAY)==0) {
 217         S_volumemusic(mus_vol);
 218     }
 219
 220     if (muscount>0) {
 221         if (muscount < music_fade*1100/DELAY) {
 222             Mix_FadeOutMusic(music_fade*1000);
 223         }
 224         muscount--;
 225         if (muscount==0) {
 226             if (music_random) F_randmus(g_music);
 227             else F_nextmus(g_music);
 228             F_freemus();
 229             F_loadmus(g_music);
 230             S_startmusic(music_time);
 231         }
 232     }
 233 }