7 bill@newbreedsoftware.com
8 http://www.newbreedsoftware.com/supertux/
10 April 11, 2000 - February 1st, 2004
19 #include <SDL_image.h>
21 #include <SDL_opengl.h>
27 #include <sys/types.h>
40 /* Local function prototypes: */
43 void usage(char * prog, int ret);
45 /* Does the given file exist and is it accessible? */
46 int faccessible(char *filename)
49 if (stat(filename, &filestat) == -1)
55 /* Can we write to this location? */
56 int fwriteable(char *filename)
59 fi = fopen(filename, "wa");
67 /* Makes sure a directory is created in either the SuperTux base directory or the SuperTux base directory.*/
68 int fcreatedir(char* relative_dir)
71 snprintf(path, 1024, "%s/%s/", st_dir, relative_dir);
72 if(mkdir(path,0755) != 0)
74 snprintf(path, 1024, "%s/%s/", DATA_PREFIX, relative_dir);
75 if(mkdir(path,0755) != 0)
90 /* Get all names of sub-directories in a certain directory. */
91 /* Returns the number of sub-directories found. */
92 /* Note: The user has to free the allocated space. */
93 string_list_type dsubdirs(char *rel_path, char* expected_file)
96 struct dirent *direntp;
98 string_list_type sdirs;
102 string_list_init(&sdirs);
103 sprintf(path,"%s/%s",st_dir,rel_path);
104 if((dirStructP = opendir(path)) != NULL)
106 while((direntp = readdir(dirStructP)) != NULL)
108 char absolute_filename[1024];
111 sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
113 if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
115 if(expected_file != NULL)
117 sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
118 if(!faccessible(filename))
122 string_list_add_item(&sdirs,direntp->d_name);
125 closedir(dirStructP);
128 sprintf(path,"%s/%s",DATA_PREFIX,rel_path);
129 if((dirStructP = opendir(path)) != NULL)
131 while((direntp = readdir(dirStructP)) != NULL)
133 char absolute_filename[1024];
136 sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
138 if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
140 if(expected_file != NULL)
142 sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
143 if(!faccessible(filename))
149 sprintf(filename,"%s/%s/%s/%s",st_dir,rel_path,direntp->d_name,expected_file);
150 if(faccessible(filename))
155 string_list_add_item(&sdirs,direntp->d_name);
158 closedir(dirStructP);
164 string_list_type dfiles(char *rel_path, char* expected_file)
167 struct dirent *direntp;
169 string_list_type sdirs;
173 string_list_init(&sdirs);
174 sprintf(path,"%s/%s",st_dir,rel_path);
175 if((dirStructP = opendir(path)) != NULL)
177 while((direntp = readdir(dirStructP)) != NULL)
179 char absolute_filename[1024];
182 sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
184 if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
186 if(expected_file != NULL)
188 sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
189 if(!faccessible(filename))
193 string_list_add_item(&sdirs,direntp->d_name);
196 closedir(dirStructP);
199 sprintf(path,"%s/%s",DATA_PREFIX,rel_path);
200 if((dirStructP = opendir(path)) != NULL)
202 while((direntp = readdir(dirStructP)) != NULL)
204 char absolute_filename[1024];
207 sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
209 if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
211 if(expected_file != NULL)
213 sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
214 if(!faccessible(filename))
220 sprintf(filename,"%s/%s/%s/%s",st_dir,rel_path,direntp->d_name,expected_file);
221 if(faccessible(filename))
226 string_list_add_item(&sdirs,direntp->d_name);
229 closedir(dirStructP);
235 void free_strings(char **strings, int num)
238 for(i=0; i < num; ++i)
243 /* Set SuperTux configuration and save directories */
244 void st_directory_setup(void)
248 /* Get home directory (from $HOME variable)... if we can't determine it,
249 use the current directory ("."): */
250 if (getenv("HOME") != NULL)
251 home = getenv("HOME");
255 st_dir = (char *) malloc(sizeof(char) * (strlen(home) +
256 strlen("/.supertux") + 1));
257 strcpy(st_dir, home);
258 strcat(st_dir, "/.supertux");
260 st_save_dir = (char *) malloc(sizeof(char) * (strlen(st_dir) + strlen("/save") + 1));
262 strcpy(st_save_dir,st_dir);
263 strcat(st_save_dir,"/save");
265 /* Create them. In the case they exist they won't destroy anything. */
269 mkdir(st_save_dir, 0755);
271 sprintf(str, "%s/levels", st_dir);
278 sprintf(str, "%s/levels", st_dir);
285 /* Create and setup menus. */
288 menu_init(&main_menu);
289 menu_additem(&main_menu,menu_item_create(MN_LABEL,"Main Menu",0,0));
290 menu_additem(&main_menu,menu_item_create(MN_HL,"",0,0));
291 menu_additem(&main_menu,menu_item_create(MN_ACTION,"Start Game",0,0));
292 menu_additem(&main_menu,menu_item_create(MN_GOTO,"Load Game",0,&load_game_menu));
293 menu_additem(&main_menu,menu_item_create(MN_GOTO,"Options",0,&options_menu));
294 menu_additem(&main_menu,menu_item_create(MN_ACTION,"Level editor",0,0));
295 menu_additem(&main_menu,menu_item_create(MN_HL,"",0,0));
296 menu_additem(&main_menu,menu_item_create(MN_ACTION,"Quit",0,0));
298 menu_init(&options_menu);
299 menu_additem(&options_menu,menu_item_create(MN_LABEL,"Options",0,0));
300 menu_additem(&options_menu,menu_item_create(MN_HL,"",0,0));
301 menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Fullscreen",use_fullscreen,0));
302 if(audio_device == YES)
304 menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Sound ",use_sound,0));
305 menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Music ",use_music,0));
309 menu_additem(&options_menu,menu_item_create(MN_DEACTIVE,"Sound ",use_sound,0));
310 menu_additem(&options_menu,menu_item_create(MN_DEACTIVE,"Music ",use_music,0));
312 menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Show FPS ",show_fps,0));
313 menu_additem(&options_menu,menu_item_create(MN_HL,"",0,0));
314 menu_additem(&options_menu,menu_item_create(MN_BACK,"Back",0,0));
316 menu_init(&load_game_menu);
317 menu_additem(&load_game_menu,menu_item_create(MN_LABEL,"Load Game",0,0));
318 menu_additem(&load_game_menu,menu_item_create(MN_HL,"",0,0));
319 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 1",0,0));
320 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 2",0,0));
321 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 3",0,0));
322 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 4",0,0));
323 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 5",0,0));
324 menu_additem(&load_game_menu,menu_item_create(MN_HL,"",0,0));
325 menu_additem(&load_game_menu,menu_item_create(MN_BACK,"Back",0,0));
327 menu_init(&save_game_menu);
328 menu_additem(&save_game_menu,menu_item_create(MN_LABEL,"Save Game",0,0));
329 menu_additem(&save_game_menu,menu_item_create(MN_HL,"",0,0));
330 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 1",0,0));
331 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 2",0,0));
332 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 3",0,0));
333 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 4",0,0));
334 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 5",0,0));
335 menu_additem(&save_game_menu,menu_item_create(MN_HL,"",0,0));
336 menu_additem(&save_game_menu,menu_item_create(MN_BACK,"Back",0,0));
338 menu_init(&game_menu);
339 menu_additem(&game_menu,menu_item_create(MN_LABEL,"InGame Menu",0,0));
340 menu_additem(&game_menu,menu_item_create(MN_HL,"",0,0));
341 menu_additem(&game_menu,menu_item_create(MN_ACTION,"Return To Game",0,0));
342 menu_additem(&game_menu,menu_item_create(MN_GOTO,"Save Game",0,&save_game_menu));
343 menu_additem(&game_menu,menu_item_create(MN_GOTO,"Load Game",0,&load_game_menu));
344 menu_additem(&game_menu,menu_item_create(MN_GOTO,"Options",0,&options_menu));
345 menu_additem(&game_menu,menu_item_create(MN_HL,"",0,0));
346 menu_additem(&game_menu,menu_item_create(MN_ACTION,"Quit Game",0,0));
348 menu_init(&highscore_menu);
349 menu_additem(&highscore_menu,menu_item_create(MN_TEXTFIELD,"Enter your name:",0,0));
353 void update_load_save_game_menu(menu_type* pmenu, int load)
357 for(i = 2; i < 7; ++i)
361 if(load && strlen(tmp) == strlen("Slot X - Free") )
362 pmenu->item[i].kind = MN_DEACTIVE;
364 pmenu->item[i].kind = MN_ACTION;
365 menu_item_change_text(&pmenu->item[i],tmp);
370 void process_save_load_game_menu(int save)
373 switch (slot = menu_check(save ? &save_game_menu : &load_game_menu))
384 if(game_started == NO)
385 gameloop("whatever",slot,ST_GL_LOAD_GAME);
389 st_pause_ticks_stop();
395 /* Handle changes made to global settings in the options menu. */
396 void process_options_menu(void)
398 switch (menu_check(&options_menu))
401 if(use_fullscreen != options_menu.item[2].toggled)
403 use_fullscreen = !use_fullscreen;
408 if(use_sound != options_menu.item[3].toggled)
409 use_sound = !use_sound;
412 if(use_music != options_menu.item[4].toggled)
425 if (!playing_music())
427 play_current_music();
433 if(show_fps != options_menu.item[5].toggled)
434 show_fps = !show_fps;
439 void st_general_setup(void)
441 /* Seed random number generator: */
443 srand(SDL_GetTicks());
445 /* Load global images: */
447 text_load(&black_text,DATA_PREFIX "/images/status/letters-black.png", TEXT_TEXT, 16,18);
448 text_load(&gold_text,DATA_PREFIX "/images/status/letters-gold.png", TEXT_TEXT, 16,18);
449 text_load(&blue_text,DATA_PREFIX "/images/status/letters-blue.png", TEXT_TEXT, 16,18);
450 text_load(&red_text,DATA_PREFIX "/images/status/letters-red.png", TEXT_TEXT, 16,18);
451 text_load(&white_text,DATA_PREFIX "/images/status/letters-white.png", TEXT_TEXT, 16,18);
452 text_load(&white_small_text,DATA_PREFIX "/images/status/letters-white-small.png", TEXT_TEXT, 8,9);
453 text_load(&white_big_text,DATA_PREFIX "/images/status/letters-white-big.png", TEXT_TEXT, 24,27);
454 text_load(&yellow_nums,DATA_PREFIX "/images/status/numbers.png", TEXT_NUM, 32,32);
456 /* Load GUI/menu images: */
457 texture_load(&checkbox, DATA_PREFIX "/images/status/checkbox.png", USE_ALPHA);
458 texture_load(&checkbox_checked, DATA_PREFIX "/images/status/checkbox-checked.png", USE_ALPHA);
459 texture_load(&back, DATA_PREFIX "/images/status/back.png", USE_ALPHA);
460 texture_load(&arrow_left, DATA_PREFIX "/images/icons/left.png", USE_ALPHA);
461 texture_load(&arrow_right, DATA_PREFIX "/images/icons/right.png", USE_ALPHA);
463 /* Set icon image: */
466 SDL_EnableUNICODE(1);
470 void st_general_free(void)
473 /* Free global images: */
475 text_free(&black_text);
476 text_free(&gold_text);
477 text_free(&white_text);
478 text_free(&blue_text);
479 text_free(&red_text);
480 text_free(&white_small_text);
482 /* Free GUI/menu images: */
483 texture_free(&checkbox);
484 texture_free(&checkbox_checked);
489 menu_free(&main_menu);
490 menu_free(&game_menu);
491 menu_free(&options_menu);
492 menu_free(&highscore_menu);
496 void st_video_setup(void)
500 SDL_FreeSurface(screen);
502 /* Init SDL Video: */
504 if (SDL_Init(SDL_INIT_VIDEO) < 0)
507 "\nError: I could not initialize video!\n"
508 "The Simple DirectMedia error that occured was:\n"
509 "%s\n\n", SDL_GetError());
518 st_video_setup_sdl();
522 /* Set window manager stuff: */
524 SDL_WM_SetCaption("Super Tux", "Super Tux");
528 void st_video_setup_sdl(void)
530 SDL_FreeSurface(screen);
532 if (use_fullscreen == YES)
534 screen = SDL_SetVideoMode(640, 480, 16, SDL_FULLSCREEN ) ; /* | SDL_HWSURFACE); */
538 "\nWarning: I could not set up fullscreen video for "
540 "The Simple DirectMedia error that occured was:\n"
541 "%s\n\n", SDL_GetError());
547 screen = SDL_SetVideoMode(640, 480, 16, SDL_HWSURFACE | SDL_DOUBLEBUF );
552 "\nError: I could not set up video for 640x480 mode.\n"
553 "The Simple DirectMedia error that occured was:\n"
554 "%s\n\n", SDL_GetError());
560 void st_video_setup_gl(void)
564 SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
565 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
566 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
567 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
568 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
570 if (use_fullscreen == YES)
572 screen = SDL_SetVideoMode(640, 480, 32, SDL_FULLSCREEN | SDL_OPENGL) ; /* | SDL_HWSURFACE); */
576 "\nWarning: I could not set up fullscreen video for "
578 "The Simple DirectMedia error that occured was:\n"
579 "%s\n\n", SDL_GetError());
585 screen = SDL_SetVideoMode(640, 480, 32, SDL_OPENGL);
590 "\nError: I could not set up video for 640x480 mode.\n"
591 "The Simple DirectMedia error that occured was:\n"
592 "%s\n\n", SDL_GetError());
598 * Set up OpenGL for 2D rendering.
600 glDisable(GL_DEPTH_TEST);
601 glDisable(GL_CULL_FACE);
603 glViewport(0, 0, screen->w, screen->h);
604 glMatrixMode(GL_PROJECTION);
606 glOrtho(0, screen->w, screen->h, 0, -1.0, 1.0);
608 glMatrixMode(GL_MODELVIEW);
610 glTranslatef(0.0f, 0.0f, 0.0f);
616 void st_joystick_setup(void)
624 if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
626 fprintf(stderr, "Warning: I could not initialize joystick!\n"
627 "The Simple DirectMedia error that occured was:\n"
628 "%s\n\n", SDL_GetError());
636 if (SDL_NumJoysticks() <= 0)
638 fprintf(stderr, "Warning: No joysticks are available.\n");
644 js = SDL_JoystickOpen(0);
648 fprintf(stderr, "Warning: Could not open joystick 1.\n"
649 "The Simple DirectMedia error that occured was:\n"
650 "%s\n\n", SDL_GetError());
656 /* Check for proper joystick configuration: */
658 if (SDL_JoystickNumAxes(js) < 2)
661 "Warning: Joystick does not have enough axes!\n");
667 if (SDL_JoystickNumButtons(js) < 2)
671 "Joystick does not have enough buttons!\n");
683 void st_audio_setup(void)
686 /* Init SDL Audio silently even if --disable-sound : */
688 if (audio_device == YES)
690 if (SDL_Init(SDL_INIT_AUDIO) < 0)
692 /* only print out message if sound or music
693 was not disabled at command-line
695 if (use_sound == YES || use_music == YES)
698 "\nWarning: I could not initialize audio!\n"
699 "The Simple DirectMedia error that occured was:\n"
700 "%s\n\n", SDL_GetError());
702 /* keep the programming logic the same :-)
703 because in this case, use_sound & use_music' values are ignored
704 when there's no available audio device
713 /* Open sound silently regarless the value of "use_sound": */
715 if (audio_device == YES)
717 if (open_audio(44100, AUDIO_S16, 2, 2048) < 0)
719 /* only print out message if sound or music
720 was not disabled at command-line
722 if ((use_sound == YES) || (use_music == YES))
725 "\nWarning: I could not set up audio for 44100 Hz "
727 "The Simple DirectMedia error that occured was:\n"
728 "%s\n\n", SDL_GetError());
739 /* --- SHUTDOWN --- */
741 void st_shutdown(void)
750 void st_abort(char * reason, char * details)
752 fprintf(stderr, "\nError: %s\n%s\n\n", reason, details);
758 /* Set Icon (private) */
767 /* Load icon into a surface: */
769 icon = IMG_Load(DATA_PREFIX "/images/icon.png");
773 "\nError: I could not load the icon image: %s\n"
774 "The Simple DirectMedia error that occured was:\n"
775 "%s\n\n", DATA_PREFIX "images/icon.png", SDL_GetError());
782 masklen = (((icon -> w) + 7) / 8) * (icon -> h);
783 mask = (Uint8*) malloc(masklen * sizeof(Uint8));
784 memset(mask, 0xFF, masklen);
789 SDL_WM_SetIcon(icon, mask);
792 /* Free icon surface & mask: */
795 SDL_FreeSurface(icon);
799 /* Parse command-line arguments: */
801 void parseargs(int argc, char * argv[])
825 /* Parse arguments: */
827 for (i = 1; i < argc; i++)
829 if (strcmp(argv[i], "--fullscreen") == 0 ||
830 strcmp(argv[i], "-f") == 0)
832 /* Use full screen: */
834 use_fullscreen = YES;
836 else if (strcmp(argv[i], "--show-fps") == 0)
838 /* Use full screen: */
842 else if (strcmp(argv[i], "--opengl") == 0 ||
843 strcmp(argv[i], "-gl") == 0)
852 else if (strcmp(argv[i], "--usage") == 0)
858 else if (strcmp(argv[i], "--version") == 0)
862 printf("Super Tux - version " VERSION "\n");
865 else if (strcmp(argv[i], "--disable-sound") == 0)
867 /* Disable the compiled in sound feature */
869 printf("Sounds disabled \n");
873 printf("Warning: Sounds feature is not compiled in \n");
877 else if (strcmp(argv[i], "--disable-music") == 0)
879 /* Disable the compiled in sound feature */
881 printf("Music disabled \n");
885 printf("Warning: Music feature is not compiled in \n");
889 else if (strcmp(argv[i], "--debug-mode") == 0)
891 /* Enable the debug-mode */
895 else if (strcmp(argv[i], "--help") == 0)
898 printf("Super Tux " VERSION "\n\n");
900 printf("---------- Command-line options ----------\n\n");
902 printf(" --opengl - If opengl support was compiled in, this will enable the EXPERIMENTAL OpenGL mode.\n\n");
904 printf(" --disable-sound - If sound support was compiled in, this will\n disable sound for this session of the game.\n\n");
906 printf(" --disable-music - Like above, but this will disable music.\n\n");
908 printf(" --fullscreen - Run in fullscreen mode.\n\n");
910 printf(" --debug-mode - Enables the debug-mode, which is useful for developers.\n\n");
912 printf(" --help - Display a help message summarizing command-line\n options, license and game controls.\n\n");
914 printf(" --usage - Display a brief message summarizing command-line options.\n\n");
916 printf(" --version - Display the version of SuperTux you're running.\n\n\n");
919 printf("---------- License ----------\n\n");
920 printf(" This program comes with ABSOLUTELY NO WARRANTY.\n");
921 printf(" This is free software, and you are welcome to redistribute\n");
922 printf(" or modify it under certain conditions. See the file \n");
923 printf(" \"COPYING.txt\" for more details.\n\n\n");
925 printf("---------- Game controls ----------\n\n");
926 printf(" Please see the file \"README.txt\"\n\n");
932 /* Unknown - complain! */
942 void usage(char * prog, int ret)
947 /* Determine which stream to write to: */
955 /* Display the usage message: */
957 fprintf(fi, "Usage: %s [--fullscreen] [--opengl] [--disable-sound] [--disable-music] [--debug-mode] | [--usage | --help | --version]\n",