music.c

   1 #include "glob.h"
   2 #include "sound.h"
   3 #include <SDL.h>
   4 #include <SDL_mixer.h>
   5
   6 short mus_vol = 50;
   7
   8 Mix_Music * muslo;
   9
  10 char music_random = ON;
  11 int music_time = 3;
  12 int music_fade = 5;
  13
  14 Uint32 muscount;
  15
  16 int musdisabled = 1;
  17
  18 void S_initmusic(void)
  19 {
  20     if (!SDL_WasInit(SDL_INIT_AUDIO)) {
  21         if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
  22             fprintf(stderr, "\nUnable to initialize audio:  %s\n", SDL_GetError());
  23             musdisabled=1;
  24             return;
  25         }
  26
  27         if (Mix_OpenAudio(22050, AUDIO_S16, 1, 1000) < 0) {
  28             fprintf(stderr, "Error initializing SDL_mixer: %s\n", Mix_GetError());
  29             musdisabled=1;
  30             return;
  31         }
  32     }
  33
  34     muslo=NULL;
  35
  36     muscount=0;
  37
  38     musdisabled = (mus_vol==0);
  39
  40    S_volumemusic(mus_vol);
  41 }
  42
  43 void S_donemusic(void)
  44 {
  45     F_freemus();
  46     Mix_CloseAudio();
  47     SDL_QuitSubSystem(SDL_INIT_AUDIO);
  48 }
  49
  50 void S_startmusic(int time)
  51 {
  52     if (musdisabled) return;
  53     Mix_PlayMusic(muslo, -1);
  54     Mix_VolumeMusic(mus_vol);
  55     muscount=time*60*1000/DELAY;
  56 }
  57
  58 void S_stopmusic(void)
  59 {
  60     if (musdisabled) return;
  61     Mix_HaltMusic();
  62     muscount = 0;
  63 }
  64
  65 void S_volumemusic(int v)
  66 {
  67     if (musdisabled) return;
  68     mus_vol = v;
  69     if (mus_vol>128) mus_vol=128;
  70     if (mus_vol<0) mus_vol=0;
  71     if (mus_vol==0 && Mix_PlayingMusic()) {
  72         S_stopmusic();
  73     }
  74     else if (mus_vol>0 && !Mix_PlayingMusic()) {
  75         S_startmusic(music_time);
  76     }
  77     else {
  78         Mix_VolumeMusic(v);
  79     }
  80 }
  81
  82 struct {
  83     Uint8 ascii;
  84     Uint8 asciilc;
  85     char *ch;
  86 } atrans[] = {
  87     {0x80, 0xA0, "A"},//А
  88     {0x81, 0xA1, "B"},//Б
  89     {0x82, 0xA2, "V"},//В
  90     {0x83, 0xA3, "G"},//Г
  91     {0x84, 0xA4, "D"},//Д
  92     {0x85, 0xA5, "E"},//Е
  93     {0x86, 0xA6, "ZH"},//Ж
  94     {0x87, 0xA7, "Z"},//З
  95     {0x88, 0xA8, "I"},//И
  96     {0x89, 0xA9, "J"},//Й
  97     {0x8A, 0xAA, "K"},//К
  98     {0x8B, 0xAB, "L"},//Л
  99     {0x8C, 0xAC, "M"},//М
 100     {0x8D, 0xAD, "N"},//Н
 101     {0x8E, 0xAE, "O"},//О
 102     {0x8F, 0xAF, "P"},//П
 103     {0x90, 0xE0, "R"},//Р
 104     {0x91, 0xE1, "S"},//С
 105     {0x92, 0xE2, "T"},//Т
 106     {0x93, 0xE3, "U"},//У
 107     {0x94, 0xE4, "F"},//Ф
 108     {0x95, 0xE5, "H"},//Х
 109     {0x96, 0xE6, "C"},//Ц
 110     {0x97, 0xE7, "CH"},//Ч
 111     {0x98, 0xE8, "SH"},//Ш
 112     {0x99, 0xE9, "SCH"},//Щ
 113     {0x9A, 0xEA, "X"},//Ъ
 114     {0x9B, 0xEB, "Y"},//Ы
 115     {0x9C, 0xEC, "J"},//Ь
 116     {0x9D, 0xED, "E"},//Э
 117     {0x9E, 0xEE, "JU"},//Ю
 118     {0x9F, 0xEF, "JA"},//Я
 119     {0}
 120 };
 121
 122 char *get_trans_char (Uint8 c)
 123 {
 124     int i = 0;
 125     while (atrans[i].ascii) {
 126
 127         if (atrans[i].ascii == c || atrans[i].asciilc == c) {
 128             return atrans[i].ch;
 129         }
 130         i++;
 131     }
 132     return NULL;
 133 }
 134
 135 void trans_ascii_str (char *dest, char *src)
 136 {
 137     char *p = dest;
 138     int i;
 139     for (i=0; i<strlen(src); i++) {
 140         char *ch = get_trans_char(src[i]);
 141         if (ch) {
 142             strcpy(p,ch);
 143             p+=strlen(ch);
 144         }
 145         else {
 146             strncpy(p,&src[i],1);
 147             p++;
 148         }
 149     }
 150     *p='\0';
 151 }
 152
 153 void F_loadmus(char n[8]) {
 154     if (musdisabled) return;
 155     char f[50];
 156 #ifndef WIN32
 157     strcpy(f,"music/");
 158 #else
 159     strcpy(f,"music\\");
 160 #endif
 161     strncpy(&f[6], n, 8);
 162     f[6+8]='\0';
 163     muslo = Mix_LoadMUS(f);
 164     if (muslo == NULL) {
 165         char name[50];
 166         trans_ascii_str(name, f);
 167         muslo = Mix_LoadMUS(name);
 168         if (!muslo) logo("Music not found '%s'\n", name);
 169     }
 170 }
 171
 172
 173 void F_freemus(void) {
 174     if (musdisabled) return;
 175     if (muslo) {
 176         Mix_HaltMusic();
 177         Mix_FreeMusic(muslo);
 178     }
 179     muslo = NULL;
 180 }
 181
 182 extern byte g_music[8];
 183
 184 static int volsetcount = 0;
 185
 186 void S_updatemusic()
 187 {
 188     if (musdisabled) return;
 189
 190     //періодично встановлюю гучність музикі, так як вона сама підвищується до максимуму через певний час
 191     volsetcount++;
 192     if (volsetcount%(5*1000/DELAY)==0) {
 193         S_volumemusic(mus_vol);
 194     }
 195
 196     if (muscount>0) {
 197         if (muscount < music_fade*1100/DELAY) {
 198             Mix_FadeOutMusic(music_fade*1000);
 199         }
 200         muscount--;
 201         if (muscount==0) {
 202             if (music_random) F_randmus(g_music);
 203             else F_nextmus(g_music);
 204             F_freemus();
 205             F_loadmus(g_music);
 206             S_startmusic(music_time);
 207         }
 208     }
 209 }