src/setup.c

   1 /*
   2   setup.c
   3
   4   Super Tux - Setup
   5
   6   by Bill Kendrick
   7   bill@newbreedsoftware.com
   8   http://www.newbreedsoftware.com/supertux/
   9
  10   April 11, 2000 - February 1st, 2004
  11 */
  12
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <string.h>
  16 #include <errno.h>
  17 #include <unistd.h>
  18 #include <SDL.h>
  19 #include <SDL_image.h>
  20 #ifndef NOOPENGL
  21 #include <SDL_opengl.h>
  22 #endif
  23
  24 #ifdef LINUX
  25 #include <pwd.h>
  26 #include <sys/stat.h>
  27 #include <sys/types.h>
  28 #include <dirent.h>
  29 #include <ctype.h>
  30 #endif
  31
  32 #include "defines.h"
  33 #include "globals.h"
  34 #include "setup.h"
  35 #include "screen.h"
  36 #include "texture.h"
  37 #include "menu.h"
  38 #include "gameloop.h"
  39
  40 /* Local function prototypes: */
  41
  42 void seticon(void);
  43 void usage(char * prog, int ret);
  44
  45 /* Does the given file exist and is it accessible? */
  46 int faccessible(char *filename)
  47 {
  48   struct stat filestat;
  49   if (stat(filename, &filestat) == -1)
  50   {
  51     return NO;
  52   }
  53   else
  54   {
  55   if(S_ISREG(filestat.st_mode))
  56     return YES;
  57   else
  58     return NO;
  59   }
  60 }
  61
  62 /* Can we write to this location? */
  63 int fwriteable(char *filename)
  64 {
  65   FILE* fi;
  66   fi = fopen(filename, "wa");
  67   if (fi == NULL)
  68     {
  69       return NO;
  70     }
  71   return YES;
  72 }
  73
  74 /* Makes sure a directory is created in either the SuperTux base directory or the SuperTux base directory.*/
  75 int fcreatedir(char* relative_dir)
  76 {
  77   char path[1024];
  78   snprintf(path, 1024, "%s/%s/", st_dir, relative_dir);
  79   if(mkdir(path,0755) != 0)
  80     {
  81       snprintf(path, 1024, "%s/%s/", DATA_PREFIX, relative_dir);
  82       if(mkdir(path,0755) != 0)
  83         {
  84           return NO;
  85         }
  86       else
  87         {
  88           return YES;
  89         }
  90     }
  91   else
  92     {
  93       return YES;
  94     }
  95 }
  96
  97 /* Get all names of sub-directories in a certain directory. */
  98 /* Returns the number of sub-directories found. */
  99 /* Note: The user has to free the allocated space. */
 100 string_list_type dsubdirs(char *rel_path, char* expected_file)
 101 {
 102   DIR *dirStructP;
 103   struct dirent *direntp;
 104   int i = 0;
 105   string_list_type sdirs;
 106   char filename[1024];
 107   char path[1024];
 108
 109   string_list_init(&sdirs);
 110   sprintf(path,"%s/%s",st_dir,rel_path);
 111   if((dirStructP = opendir(path)) != NULL)
 112     {
 113       while((direntp = readdir(dirStructP)) != NULL)
 114         {
 115           char absolute_filename[1024];
 116           struct stat buf;
 117
 118           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
 119
 120           if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
 121             {
 122               if(expected_file != NULL)
 123                 {
 124                   sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
 125                   if(!faccessible(filename))
 126                     continue;
 127                 }
 128
 129               string_list_add_item(&sdirs,direntp->d_name);
 130             }
 131         }
 132       closedir(dirStructP);
 133     }
 134
 135   sprintf(path,"%s/%s",DATA_PREFIX,rel_path);
 136   if((dirStructP = opendir(path)) != NULL)
 137     {
 138       while((direntp = readdir(dirStructP)) != NULL)
 139         {
 140           char absolute_filename[1024];
 141           struct stat buf;
 142
 143           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
 144
 145           if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
 146             {
 147               if(expected_file != NULL)
 148                 {
 149                   sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
 150                   if(!faccessible(filename))
 151                     {
 152                       continue;
 153                     }
 154                   else
 155                     {
 156                       sprintf(filename,"%s/%s/%s/%s",st_dir,rel_path,direntp->d_name,expected_file);
 157                       if(faccessible(filename))
 158                         continue;
 159                     }
 160                 }
 161
 162               string_list_add_item(&sdirs,direntp->d_name);
 163             }
 164         }
 165       closedir(dirStructP);
 166     }
 167
 168   return sdirs;
 169 }
 170
 171 string_list_type dfiles(char *rel_path, char* glob, char* exception_str)
 172 {
 173   DIR *dirStructP;
 174   struct dirent *direntp;
 175   int i = 0;
 176   string_list_type sdirs;
 177   char filename[1024];
 178   char path[1024];
 179
 180   string_list_init(&sdirs);
 181   sprintf(path,"%s/%s",st_dir,rel_path);
 182   if((dirStructP = opendir(path)) != NULL)
 183     {
 184       while((direntp = readdir(dirStructP)) != NULL)
 185         {
 186           char absolute_filename[1024];
 187           struct stat buf;
 188
 189           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
 190
 191           if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
 192             {
 193               if(exception_str != NULL)
 194                 {
 195                   if(strstr(direntp->d_name,exception_str) != NULL)
 196                     continue;
 197                 }
 198               if(glob != NULL)
 199                 if(strstr(direntp->d_name,glob) == NULL)
 200                   continue;
 201
 202               string_list_add_item(&sdirs,direntp->d_name);
 203             }
 204         }
 205       closedir(dirStructP);
 206     }
 207
 208   sprintf(path,"%s/%s",DATA_PREFIX,rel_path);
 209   if((dirStructP = opendir(path)) != NULL)
 210     {
 211       while((direntp = readdir(dirStructP)) != NULL)
 212         {
 213           char absolute_filename[1024];
 214           struct stat buf;
 215
 216           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
 217
 218           if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
 219             {
 220               if(exception_str != NULL)
 221                 {
 222                   if(strstr(direntp->d_name,exception_str) != NULL)
 223                     continue;
 224                 }
 225               if(glob != NULL)
 226                 if(strstr(direntp->d_name,glob) == NULL)
 227                   continue;
 228
 229               string_list_add_item(&sdirs,direntp->d_name);
 230             }
 231         }
 232       closedir(dirStructP);
 233     }
 234
 235   return sdirs;
 236 }
 237
 238 void free_strings(char **strings, int num)
 239 {
 240   int i;
 241   for(i=0; i < num; ++i)
 242     free(strings[i]);
 243 }
 244
 245 /* --- SETUP --- */
 246 /* Set SuperTux configuration and save directories */
 247 void st_directory_setup(void)
 248 {
 249   char *home;
 250   char str[1024];
 251   /* Get home directory (from $HOME variable)... if we can't determine it,
 252      use the current directory ("."): */
 253   if (getenv("HOME") != NULL)
 254     home = getenv("HOME");
 255   else
 256     home = ".";
 257
 258   st_dir = (char *) malloc(sizeof(char) * (strlen(home) +
 259                            strlen("/.supertux") + 1));
 260   strcpy(st_dir, home);
 261   strcat(st_dir, "/.supertux");
 262
 263   /* Remove .supertux config-file from old SuperTux versions */
 264   if(faccessible(st_dir))
 265   {
 266   remove(st_dir);
 267   }
 268
 269   st_save_dir = (char *) malloc(sizeof(char) * (strlen(st_dir) + strlen("/save") + 1));
 270
 271   strcpy(st_save_dir,st_dir);
 272   strcat(st_save_dir,"/save");
 273
 274   /* Create them. In the case they exist they won't destroy anything. */
 275 #ifdef LINUX
 276
 277   mkdir(st_dir, 0755);
 278   mkdir(st_save_dir, 0755);
 279
 280   sprintf(str, "%s/levels", st_dir);
 281   mkdir(str, 0755);
 282 #else
 283   #ifdef WIN32
 284
 285   mkdir(st_dir);
 286   mkdir(st_save_dir);
 287   sprintf(str, "%s/levels", st_dir);
 288   mkdir(str);
 289 #endif
 290 #endif
 291
 292 }
 293
 294 /* Create and setup menus. */
 295 void st_menu(void)
 296 {
 297   menu_init(&main_menu);
 298   menu_additem(&main_menu,menu_item_create(MN_LABEL,"Main Menu",0,0));
 299   menu_additem(&main_menu,menu_item_create(MN_HL,"",0,0));
 300   menu_additem(&main_menu,menu_item_create(MN_ACTION,"Start Game",0,0));
 301   menu_additem(&main_menu,menu_item_create(MN_GOTO,"Load Game",0,&load_game_menu));
 302   menu_additem(&main_menu,menu_item_create(MN_GOTO,"Options",0,&options_menu));
 303   menu_additem(&main_menu,menu_item_create(MN_ACTION,"Level editor",0,0));
 304   menu_additem(&main_menu,menu_item_create(MN_ACTION,"Credits",0,0));
 305   menu_additem(&main_menu,menu_item_create(MN_HL,"",0,0));
 306   menu_additem(&main_menu,menu_item_create(MN_ACTION,"Quit",0,0));
 307
 308   menu_init(&options_menu);
 309   menu_additem(&options_menu,menu_item_create(MN_LABEL,"Options",0,0));
 310   menu_additem(&options_menu,menu_item_create(MN_HL,"",0,0));
 311   menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Fullscreen",use_fullscreen,0));
 312   if(audio_device == YES)
 313     {
 314       menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Sound     ",use_sound,0));
 315       menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Music     ",use_music,0));
 316     }
 317   else
 318     {
 319       menu_additem(&options_menu,menu_item_create(MN_DEACTIVE,"Sound     ",use_sound,0));
 320       menu_additem(&options_menu,menu_item_create(MN_DEACTIVE,"Music     ",use_music,0));
 321     }
 322   menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Show FPS  ",show_fps,0));
 323   menu_additem(&options_menu,menu_item_create(MN_HL,"",0,0));
 324   menu_additem(&options_menu,menu_item_create(MN_BACK,"Back",0,0));
 325
 326   menu_init(&load_game_menu);
 327   menu_additem(&load_game_menu,menu_item_create(MN_LABEL,"Load Game",0,0));
 328   menu_additem(&load_game_menu,menu_item_create(MN_HL,"",0,0));
 329   menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 1",0,0));
 330   menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 2",0,0));
 331   menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 3",0,0));
 332   menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 4",0,0));
 333   menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 5",0,0));
 334   menu_additem(&load_game_menu,menu_item_create(MN_HL,"",0,0));
 335   menu_additem(&load_game_menu,menu_item_create(MN_BACK,"Back",0,0));
 336
 337   menu_init(&save_game_menu);
 338   menu_additem(&save_game_menu,menu_item_create(MN_LABEL,"Save Game",0,0));
 339   menu_additem(&save_game_menu,menu_item_create(MN_HL,"",0,0));
 340   menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 1",0,0));
 341   menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 2",0,0));
 342   menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 3",0,0));
 343   menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 4",0,0));
 344   menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 5",0,0));
 345   menu_additem(&save_game_menu,menu_item_create(MN_HL,"",0,0));
 346   menu_additem(&save_game_menu,menu_item_create(MN_BACK,"Back",0,0));
 347
 348   menu_init(&game_menu);
 349   menu_additem(&game_menu,menu_item_create(MN_LABEL,"InGame Menu",0,0));
 350   menu_additem(&game_menu,menu_item_create(MN_HL,"",0,0));
 351   menu_additem(&game_menu,menu_item_create(MN_ACTION,"Return To Game",0,0));
 352   menu_additem(&game_menu,menu_item_create(MN_GOTO,"Save Game",0,&save_game_menu));
 353   menu_additem(&game_menu,menu_item_create(MN_GOTO,"Load Game",0,&load_game_menu));
 354   menu_additem(&game_menu,menu_item_create(MN_GOTO,"Options",0,&options_menu));
 355   menu_additem(&game_menu,menu_item_create(MN_HL,"",0,0));
 356   menu_additem(&game_menu,menu_item_create(MN_ACTION,"Quit Game",0,0));
 357
 358   menu_init(&highscore_menu);
 359   menu_additem(&highscore_menu,menu_item_create(MN_TEXTFIELD,"Enter your name:",0,0));
 360
 361 }
 362
 363 void update_load_save_game_menu(menu_type* pmenu, int load)
 364 {
 365   int i;
 366
 367   for(i = 2; i < 7; ++i)
 368     {
 369       char *tmp;
 370       slotinfo(&tmp,i-1);
 371       if(load && strlen(tmp) == strlen("Slot X - Free") )
 372         pmenu->item[i].kind = MN_DEACTIVE;
 373       else
 374         pmenu->item[i].kind = MN_ACTION;
 375       menu_item_change_text(&pmenu->item[i],tmp);
 376       free(tmp);
 377     }
 378 }
 379
 380 void process_save_load_game_menu(int save)
 381 {
 382   int slot;
 383   switch (slot = menu_check(save ? &save_game_menu : &load_game_menu))
 384     {
 385     default:
 386       if(slot != -1)
 387         {
 388           if(save == YES)
 389             {
 390               savegame(slot);
 391             }
 392           else
 393             {
 394               if(game_started == NO)
 395                 gameloop("whatever",slot,ST_GL_LOAD_GAME);
 396               else
 397                 loadgame(slot);
 398             }
 399           st_pause_ticks_stop();
 400         }
 401       break;
 402     }
 403 }
 404
 405 /* Handle changes made to global settings in the options menu. */
 406 void process_options_menu(void)
 407 {
 408   switch (menu_check(&options_menu))
 409     {
 410     case 2:
 411       if(use_fullscreen != options_menu.item[2].toggled)
 412         {
 413           use_fullscreen = !use_fullscreen;
 414           st_video_setup();
 415         }
 416       break;
 417     case 3:
 418       if(use_sound != options_menu.item[3].toggled)
 419         use_sound = !use_sound;
 420       break;
 421     case 4:
 422       if(use_music != options_menu.item[4].toggled)
 423         {
 424           if(use_music == YES)
 425             {
 426               if(playing_music())
 427                 {
 428                   halt_music();
 429                 }
 430               use_music = NO;
 431             }
 432           else
 433             {
 434               use_music = YES;
 435               if (!playing_music())
 436                 {
 437                   play_current_music();
 438                 }
 439             }
 440         }
 441       break;
 442     case 5:
 443       if(show_fps != options_menu.item[5].toggled)
 444         show_fps = !show_fps;
 445       break;
 446     }
 447 }
 448
 449 void st_general_setup(void)
 450 {
 451   /* Seed random number generator: */
 452
 453   srand(SDL_GetTicks());
 454
 455   /* Load global images: */
 456
 457   text_load(&black_text,DATA_PREFIX "/images/status/letters-black.png", TEXT_TEXT, 16,18);
 458   text_load(&gold_text,DATA_PREFIX "/images/status/letters-gold.png", TEXT_TEXT, 16,18);
 459   text_load(&blue_text,DATA_PREFIX "/images/status/letters-blue.png", TEXT_TEXT, 16,18);
 460   text_load(&red_text,DATA_PREFIX "/images/status/letters-red.png", TEXT_TEXT, 16,18);
 461   text_load(&white_text,DATA_PREFIX "/images/status/letters-white.png", TEXT_TEXT, 16,18);
 462   text_load(&white_small_text,DATA_PREFIX "/images/status/letters-white-small.png", TEXT_TEXT, 8,9);
 463   text_load(&white_big_text,DATA_PREFIX "/images/status/letters-white-big.png", TEXT_TEXT, 20,23);
 464   text_load(&yellow_nums,DATA_PREFIX "/images/status/numbers.png", TEXT_NUM, 32,32);
 465
 466   /* Load GUI/menu images: */
 467   texture_load(&checkbox, DATA_PREFIX "/images/status/checkbox.png", USE_ALPHA);
 468   texture_load(&checkbox_checked, DATA_PREFIX "/images/status/checkbox-checked.png", USE_ALPHA);
 469   texture_load(&back, DATA_PREFIX "/images/status/back.png", USE_ALPHA);
 470   texture_load(&arrow_left, DATA_PREFIX "/images/icons/left.png", USE_ALPHA);
 471   texture_load(&arrow_right, DATA_PREFIX "/images/icons/right.png", USE_ALPHA);
 472
 473   /* Set icon image: */
 474
 475   seticon();
 476   SDL_EnableUNICODE(1);
 477
 478 }
 479
 480 void st_general_free(void)
 481 {
 482
 483   /* Free global images: */
 484
 485   text_free(&black_text);
 486   text_free(&gold_text);
 487   text_free(&white_text);
 488   text_free(&blue_text);
 489   text_free(&red_text);
 490   text_free(&white_small_text);
 491   text_free(&white_big_text);
 492
 493   /* Free GUI/menu images: */
 494   texture_free(&checkbox);
 495   texture_free(&checkbox_checked);
 496   texture_free(&back);
 497   texture_free(&arrow_left);
 498   texture_free(&arrow_right);
 499
 500   /* Free menus */
 501
 502   menu_free(&main_menu);
 503   menu_free(&game_menu);
 504   menu_free(&options_menu);
 505   menu_free(&highscore_menu);
 506   menu_free(&save_game_menu);
 507   menu_free(&load_game_menu);
 508
 509 }
 510
 511 void st_video_setup(void)
 512 {
 513
 514   if(screen != NULL)
 515     SDL_FreeSurface(screen);
 516
 517   /* Init SDL Video: */
 518
 519   if (SDL_Init(SDL_INIT_VIDEO) < 0)
 520     {
 521       fprintf(stderr,
 522               "\nError: I could not initialize video!\n"
 523               "The Simple DirectMedia error that occured was:\n"
 524               "%s\n\n", SDL_GetError());
 525       exit(1);
 526     }
 527
 528   /* Open display: */
 529
 530   if(use_gl)
 531     st_video_setup_gl();
 532   else
 533     st_video_setup_sdl();
 534
 535   texture_setup();
 536
 537   /* Set window manager stuff: */
 538
 539   SDL_WM_SetCaption("Super Tux", "Super Tux");
 540
 541 }
 542
 543 void st_video_setup_sdl(void)
 544 {
 545   SDL_FreeSurface(screen);
 546
 547   if (use_fullscreen == YES)
 548     {
 549       screen = SDL_SetVideoMode(640, 480, 16, SDL_FULLSCREEN ) ; /* | SDL_HWSURFACE); */
 550       if (screen == NULL)
 551         {
 552           fprintf(stderr,
 553                   "\nWarning: I could not set up fullscreen video for "
 554                   "640x480 mode.\n"
 555                   "The Simple DirectMedia error that occured was:\n"
 556                   "%s\n\n", SDL_GetError());
 557           use_fullscreen = NO;
 558         }
 559     }
 560   else
 561     {
 562       screen = SDL_SetVideoMode(640, 480, 16, SDL_HWSURFACE | SDL_DOUBLEBUF );
 563
 564       if (screen == NULL)
 565         {
 566           fprintf(stderr,
 567                   "\nError: I could not set up video for 640x480 mode.\n"
 568                   "The Simple DirectMedia error that occured was:\n"
 569                   "%s\n\n", SDL_GetError());
 570           exit(1);
 571         }
 572     }
 573 }
 574
 575 void st_video_setup_gl(void)
 576 {
 577 #ifndef NOOPENGL
 578
 579   SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
 580   SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
 581   SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
 582   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
 583   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 584
 585   if (use_fullscreen == YES)
 586     {
 587       screen = SDL_SetVideoMode(640, 480, 32, SDL_FULLSCREEN | SDL_OPENGL) ; /* | SDL_HWSURFACE); */
 588       if (screen == NULL)
 589         {
 590           fprintf(stderr,
 591                   "\nWarning: I could not set up fullscreen video for "
 592                   "640x480 mode.\n"
 593                   "The Simple DirectMedia error that occured was:\n"
 594                   "%s\n\n", SDL_GetError());
 595           use_fullscreen = NO;
 596         }
 597     }
 598   else
 599     {
 600       screen = SDL_SetVideoMode(640, 480, 32, SDL_OPENGL);
 601
 602       if (screen == NULL)
 603         {
 604           fprintf(stderr,
 605                   "\nError: I could not set up video for 640x480 mode.\n"
 606                   "The Simple DirectMedia error that occured was:\n"
 607                   "%s\n\n", SDL_GetError());
 608           exit(1);
 609         }
 610     }
 611
 612   /*
 613    * Set up OpenGL for 2D rendering.
 614    */
 615   glDisable(GL_DEPTH_TEST);
 616   glDisable(GL_CULL_FACE);
 617
 618   glViewport(0, 0, screen->w, screen->h);
 619   glMatrixMode(GL_PROJECTION);
 620   glLoadIdentity();
 621   glOrtho(0, screen->w, screen->h, 0, -1.0, 1.0);
 622
 623   glMatrixMode(GL_MODELVIEW);
 624   glLoadIdentity();
 625   glTranslatef(0.0f, 0.0f, 0.0f);
 626
 627 #endif
 628
 629 }
 630
 631 void st_joystick_setup(void)
 632 {
 633
 634   /* Init Joystick: */
 635
 636 #ifdef JOY_YES
 637   use_joystick = YES;
 638
 639   if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
 640     {
 641       fprintf(stderr, "Warning: I could not initialize joystick!\n"
 642               "The Simple DirectMedia error that occured was:\n"
 643               "%s\n\n", SDL_GetError());
 644
 645       use_joystick = NO;
 646     }
 647   else
 648     {
 649       /* Open joystick: */
 650
 651       if (SDL_NumJoysticks() <= 0)
 652         {
 653           fprintf(stderr, "Warning: No joysticks are available.\n");
 654
 655           use_joystick = NO;
 656         }
 657       else
 658         {
 659           js = SDL_JoystickOpen(0);
 660
 661           if (js == NULL)
 662             {
 663               fprintf(stderr, "Warning: Could not open joystick 1.\n"
 664                       "The Simple DirectMedia error that occured was:\n"
 665                       "%s\n\n", SDL_GetError());
 666
 667               use_joystick = NO;
 668             }
 669           else
 670             {
 671               /* Check for proper joystick configuration: */
 672
 673               if (SDL_JoystickNumAxes(js) < 2)
 674                 {
 675                   fprintf(stderr,
 676                           "Warning: Joystick does not have enough axes!\n");
 677
 678                   use_joystick = NO;
 679                 }
 680               else
 681                 {
 682                   if (SDL_JoystickNumButtons(js) < 2)
 683                     {
 684                       fprintf(stderr,
 685                               "Warning: "
 686                               "Joystick does not have enough buttons!\n");
 687
 688                       use_joystick = NO;
 689                     }
 690                 }
 691             }
 692         }
 693     }
 694 #endif
 695
 696 }
 697
 698 void st_audio_setup(void)
 699 {
 700
 701   /* Init SDL Audio silently even if --disable-sound : */
 702
 703   if (audio_device == YES)
 704     {
 705       if (SDL_Init(SDL_INIT_AUDIO) < 0)
 706         {
 707           /* only print out message if sound or music
 708              was not disabled at command-line
 709            */
 710           if (use_sound == YES || use_music == YES)
 711             {
 712               fprintf(stderr,
 713                       "\nWarning: I could not initialize audio!\n"
 714                       "The Simple DirectMedia error that occured was:\n"
 715                       "%s\n\n", SDL_GetError());
 716             }
 717           /* keep the programming logic the same :-)
 718              because in this case, use_sound & use_music' values are ignored
 719              when there's no available audio device
 720           */
 721           use_sound = NO;
 722           use_music = NO;
 723           audio_device = NO;
 724         }
 725     }
 726
 727
 728   /* Open sound silently regarless the value of "use_sound": */
 729
 730   if (audio_device == YES)
 731     {
 732       if (open_audio(44100, AUDIO_S16, 2, 2048) < 0)
 733         {
 734           /* only print out message if sound or music
 735              was not disabled at command-line
 736            */
 737           if ((use_sound == YES) || (use_music == YES))
 738             {
 739               fprintf(stderr,
 740                       "\nWarning: I could not set up audio for 44100 Hz "
 741                       "16-bit stereo.\n"
 742                       "The Simple DirectMedia error that occured was:\n"
 743                       "%s\n\n", SDL_GetError());
 744             }
 745           use_sound = NO;
 746           use_music = NO;
 747           audio_device = NO;
 748         }
 749     }
 750
 751 }
 752
 753
 754 /* --- SHUTDOWN --- */
 755
 756 void st_shutdown(void)
 757 {
 758   close_audio();
 759   SDL_Quit();
 760 }
 761
 762
 763 /* --- ABORT! --- */
 764
 765 void st_abort(char * reason, char * details)
 766 {
 767   fprintf(stderr, "\nError: %s\n%s\n\n", reason, details);
 768   st_shutdown();
 769   exit(1);
 770 }
 771
 772
 773 /* Set Icon (private) */
 774
 775 void seticon(void)
 776 {
 777   int masklen;
 778   Uint8 * mask;
 779   SDL_Surface * icon;
 780
 781
 782   /* Load icon into a surface: */
 783
 784   icon = IMG_Load(DATA_PREFIX "/images/icon.png");
 785   if (icon == NULL)
 786     {
 787       fprintf(stderr,
 788               "\nError: I could not load the icon image: %s\n"
 789               "The Simple DirectMedia error that occured was:\n"
 790               "%s\n\n", DATA_PREFIX "images/icon.png", SDL_GetError());
 791       exit(1);
 792     }
 793
 794
 795   /* Create mask: */
 796
 797   masklen = (((icon -> w) + 7) / 8) * (icon -> h);
 798   mask = (Uint8*) malloc(masklen * sizeof(Uint8));
 799   memset(mask, 0xFF, masklen);
 800
 801
 802   /* Set icon: */
 803
 804   SDL_WM_SetIcon(icon, mask);
 805
 806
 807   /* Free icon surface & mask: */
 808
 809   free(mask);
 810   SDL_FreeSurface(icon);
 811 }
 812
 813
 814 /* Parse command-line arguments: */
 815
 816 void parseargs(int argc, char * argv[])
 817 {
 818   int i;
 819
 820   /* Set defaults: */
 821
 822
 823   debug_mode = NO;
 824   use_fullscreen = NO;
 825   show_fps = NO;
 826   use_gl = NO;
 827
 828 #ifndef NOSOUND
 829
 830   use_sound = YES;
 831   use_music = YES;
 832   audio_device = YES;
 833 #else
 834
 835   use_sound = NO;
 836   use_music = NO;
 837   audio_device = NO;
 838 #endif
 839
 840   /* Parse arguments: */
 841
 842   for (i = 1; i < argc; i++)
 843     {
 844       if (strcmp(argv[i], "--fullscreen") == 0 ||
 845           strcmp(argv[i], "-f") == 0)
 846         {
 847           /* Use full screen: */
 848
 849           use_fullscreen = YES;
 850         }
 851       else if (strcmp(argv[i], "--show-fps") == 0)
 852         {
 853           /* Use full screen: */
 854
 855           show_fps = YES;
 856         }
 857       else if (strcmp(argv[i], "--opengl") == 0 ||
 858                strcmp(argv[i], "-gl") == 0)
 859         {
 860 #ifndef NOOPENGL
 861           /* Use OpengGL: */
 862
 863           use_gl = YES;
 864 #endif
 865
 866         }
 867       else if (strcmp(argv[i], "--usage") == 0)
 868         {
 869           /* Show usage: */
 870
 871           usage(argv[0], 0);
 872         }
 873       else if (strcmp(argv[i], "--version") == 0)
 874         {
 875           /* Show version: */
 876
 877           printf("Super Tux - version " VERSION "\n");
 878           exit(0);
 879         }
 880       else if (strcmp(argv[i], "--disable-sound") == 0)
 881         {
 882           /* Disable the compiled in sound feature */
 883 #ifndef NOSOUND
 884           printf("Sounds disabled \n");
 885           use_sound = NO;
 886 #else
 887
 888           printf("Warning: Sounds feature is not compiled in \n");
 889 #endif
 890
 891         }
 892       else if (strcmp(argv[i], "--disable-music") == 0)
 893         {
 894           /* Disable the compiled in sound feature */
 895 #ifndef NOSOUND
 896           printf("Music disabled \n");
 897           use_music = NO;
 898 #else
 899
 900           printf("Warning: Music feature is not compiled in \n");
 901 #endif
 902
 903         }
 904       else if (strcmp(argv[i], "--debug-mode") == 0)
 905         {
 906           /* Enable the debug-mode */
 907           debug_mode = YES;
 908
 909         }
 910       else if (strcmp(argv[i], "--help") == 0)
 911         {         /* Show help: */
 912
 913           printf("Super Tux " VERSION "\n\n");
 914
 915           printf("----------  Command-line options  ----------\n\n");
 916
 917           printf("  --opengl            - If opengl support was compiled in, this will enable the EXPERIMENTAL OpenGL mode.\n\n");
 918
 919           printf("  --disable-sound     - If sound support was compiled in,  this will\n                        disable sound for this session of the game.\n\n");
 920
 921           printf("  --disable-music     - Like above, but this will disable music.\n\n");
 922
 923           printf("  --fullscreen        - Run in fullscreen mode.\n\n");
 924
 925           printf("  --debug-mode        - Enables the debug-mode, which is useful for developers.\n\n");
 926
 927           printf("  --help              - Display a help message summarizing command-line\n                        options, license and game controls.\n\n");
 928
 929           printf("  --usage             - Display a brief message summarizing command-line options.\n\n");
 930
 931           printf("  --version           - Display the version of SuperTux you're running.\n\n\n");
 932
 933
 934           printf("----------          License       ----------\n\n");
 935           printf("  This program comes with ABSOLUTELY NO WARRANTY.\n");
 936           printf("  This is free software, and you are welcome to redistribute\n");
 937           printf("  or modify it under certain conditions. See the file \n");
 938           printf("  \"COPYING.txt\" for more details.\n\n\n");
 939
 940           printf("----------      Game controls     ----------\n\n");
 941           printf("  Please see the file \"README.txt\"\n\n");
 942
 943           exit(0);
 944         }
 945       else
 946         {
 947           /* Unknown - complain! */
 948
 949           usage(argv[0], 1);
 950         }
 951     }
 952 }
 953
 954
 955 /* Display usage: */
 956
 957 void usage(char * prog, int ret)
 958 {
 959   FILE * fi;
 960
 961
 962   /* Determine which stream to write to: */
 963
 964   if (ret == 0)
 965     fi = stdout;
 966   else
 967     fi = stderr;
 968
 969
 970   /* Display the usage message: */
 971
 972   fprintf(fi, "Usage: %s [--fullscreen] [--opengl] [--disable-sound] [--disable-music] [--debug-mode] | [--usage | --help | --version]\n",
 973           prog);
 974
 975
 976   /* Quit! */
 977
 978   exit(ret);
 979 }
 980