7 bill@newbreedsoftware.com
8 http://www.newbreedsoftware.com/supertux/
10 April 11, 2000 - March 15, 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 if(S_ISREG(filestat.st_mode))
62 /* Can we write to this location? */
63 int fwriteable(char *filename)
66 fi = fopen(filename, "wa");
74 /* Makes sure a directory is created in either the SuperTux base directory or the SuperTux base directory.*/
75 int fcreatedir(char* relative_dir)
78 snprintf(path, 1024, "%s/%s/", st_dir, relative_dir);
79 if(mkdir(path,0755) != 0)
81 snprintf(path, 1024, "%s/%s/", DATA_PREFIX, relative_dir);
82 if(mkdir(path,0755) != 0)
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)
103 struct dirent *direntp;
105 string_list_type sdirs;
109 string_list_init(&sdirs);
110 sprintf(path,"%s/%s",st_dir,rel_path);
111 if((dirStructP = opendir(path)) != NULL)
113 while((direntp = readdir(dirStructP)) != NULL)
115 char absolute_filename[1024];
118 sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
120 if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
122 if(expected_file != NULL)
124 sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
125 if(!faccessible(filename))
129 string_list_add_item(&sdirs,direntp->d_name);
132 closedir(dirStructP);
135 sprintf(path,"%s/%s",DATA_PREFIX,rel_path);
136 if((dirStructP = opendir(path)) != NULL)
138 while((direntp = readdir(dirStructP)) != NULL)
140 char absolute_filename[1024];
143 sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
145 if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
147 if(expected_file != NULL)
149 sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
150 if(!faccessible(filename))
156 sprintf(filename,"%s/%s/%s/%s",st_dir,rel_path,direntp->d_name,expected_file);
157 if(faccessible(filename))
162 string_list_add_item(&sdirs,direntp->d_name);
165 closedir(dirStructP);
171 string_list_type dfiles(char *rel_path, char* glob, char* exception_str)
174 struct dirent *direntp;
176 string_list_type sdirs;
180 string_list_init(&sdirs);
181 sprintf(path,"%s/%s",st_dir,rel_path);
182 if((dirStructP = opendir(path)) != NULL)
184 while((direntp = readdir(dirStructP)) != NULL)
186 char absolute_filename[1024];
189 sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
191 if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
193 if(exception_str != NULL)
195 if(strstr(direntp->d_name,exception_str) != NULL)
199 if(strstr(direntp->d_name,glob) == NULL)
202 string_list_add_item(&sdirs,direntp->d_name);
205 closedir(dirStructP);
208 sprintf(path,"%s/%s",DATA_PREFIX,rel_path);
209 if((dirStructP = opendir(path)) != NULL)
211 while((direntp = readdir(dirStructP)) != NULL)
213 char absolute_filename[1024];
216 sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
218 if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
220 if(exception_str != NULL)
222 if(strstr(direntp->d_name,exception_str) != NULL)
226 if(strstr(direntp->d_name,glob) == NULL)
229 string_list_add_item(&sdirs,direntp->d_name);
232 closedir(dirStructP);
238 void free_strings(char **strings, int num)
241 for(i=0; i < num; ++i)
246 /* Set SuperTux configuration and save directories */
247 void st_directory_setup(void)
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");
258 st_dir = (char *) malloc(sizeof(char) * (strlen(home) +
259 strlen("/.supertux") + 1));
260 strcpy(st_dir, home);
261 strcat(st_dir, "/.supertux");
263 /* Remove .supertux config-file from old SuperTux versions */
264 if(faccessible(st_dir))
270 st_save_dir = (char *) malloc(sizeof(char) * (strlen(st_dir) + strlen("/save") + 1));
272 strcpy(st_save_dir,st_dir);
273 strcat(st_save_dir,"/save");
275 /* Create them. In the case they exist they won't destroy anything. */
279 mkdir(st_save_dir, 0755);
281 sprintf(str, "%s/levels", st_dir);
288 sprintf(str, "%s/levels", st_dir);
295 /* Create and setup menus. */
298 menu_init(&main_menu);
299 menu_additem(&main_menu,menu_item_create(MN_LABEL,"Main Menu",0,0));
300 menu_additem(&main_menu,menu_item_create(MN_HL,"",0,0));
301 menu_additem(&main_menu,menu_item_create(MN_ACTION,"Start Game",0,0));
302 menu_additem(&main_menu,menu_item_create(MN_GOTO,"Load Game",0,&load_game_menu));
303 menu_additem(&main_menu,menu_item_create(MN_GOTO,"Options",0,&options_menu));
304 menu_additem(&main_menu,menu_item_create(MN_ACTION,"Level editor",0,0));
305 menu_additem(&main_menu,menu_item_create(MN_ACTION,"Credits",0,0));
306 menu_additem(&main_menu,menu_item_create(MN_HL,"",0,0));
307 menu_additem(&main_menu,menu_item_create(MN_ACTION,"Quit",0,0));
309 menu_init(&options_menu);
310 menu_additem(&options_menu,menu_item_create(MN_LABEL,"Options",0,0));
311 menu_additem(&options_menu,menu_item_create(MN_HL,"",0,0));
312 menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Fullscreen",use_fullscreen,0));
313 if(audio_device == YES)
315 menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Sound ",use_sound,0));
316 menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Music ",use_music,0));
320 menu_additem(&options_menu,menu_item_create(MN_DEACTIVE,"Sound ",use_sound,0));
321 menu_additem(&options_menu,menu_item_create(MN_DEACTIVE,"Music ",use_music,0));
323 menu_additem(&options_menu,menu_item_create(MN_TOGGLE,"Show FPS ",show_fps,0));
324 menu_additem(&options_menu,menu_item_create(MN_HL,"",0,0));
325 menu_additem(&options_menu,menu_item_create(MN_BACK,"Back",0,0));
327 menu_init(&load_game_menu);
328 menu_additem(&load_game_menu,menu_item_create(MN_LABEL,"Load Game",0,0));
329 menu_additem(&load_game_menu,menu_item_create(MN_HL,"",0,0));
330 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 1",0,0));
331 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 2",0,0));
332 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 3",0,0));
333 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 4",0,0));
334 menu_additem(&load_game_menu,menu_item_create(MN_DEACTIVE,"Slot 5",0,0));
335 menu_additem(&load_game_menu,menu_item_create(MN_HL,"",0,0));
336 menu_additem(&load_game_menu,menu_item_create(MN_BACK,"Back",0,0));
338 menu_init(&save_game_menu);
339 menu_additem(&save_game_menu,menu_item_create(MN_LABEL,"Save Game",0,0));
340 menu_additem(&save_game_menu,menu_item_create(MN_HL,"",0,0));
341 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 1",0,0));
342 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 2",0,0));
343 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 3",0,0));
344 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 4",0,0));
345 menu_additem(&save_game_menu,menu_item_create(MN_DEACTIVE,"Slot 5",0,0));
346 menu_additem(&save_game_menu,menu_item_create(MN_HL,"",0,0));
347 menu_additem(&save_game_menu,menu_item_create(MN_BACK,"Back",0,0));
349 menu_init(&game_menu);
350 menu_additem(&game_menu,menu_item_create(MN_LABEL,"InGame Menu",0,0));
351 menu_additem(&game_menu,menu_item_create(MN_HL,"",0,0));
352 menu_additem(&game_menu,menu_item_create(MN_ACTION,"Return To Game",0,0));
353 menu_additem(&game_menu,menu_item_create(MN_GOTO,"Save Game",0,&save_game_menu));
354 menu_additem(&game_menu,menu_item_create(MN_GOTO,"Load Game",0,&load_game_menu));
355 menu_additem(&game_menu,menu_item_create(MN_GOTO,"Options",0,&options_menu));
356 menu_additem(&game_menu,menu_item_create(MN_HL,"",0,0));
357 menu_additem(&game_menu,menu_item_create(MN_ACTION,"Quit Game",0,0));
359 menu_init(&highscore_menu);
360 menu_additem(&highscore_menu,menu_item_create(MN_TEXTFIELD,"Enter your name:",0,0));
364 void update_load_save_game_menu(menu_type* pmenu, int load)
368 for(i = 2; i < 7; ++i)
372 if(load && strlen(tmp) == strlen("Slot X - Free") )
373 pmenu->item[i].kind = MN_DEACTIVE;
375 pmenu->item[i].kind = MN_ACTION;
376 menu_item_change_text(&pmenu->item[i],tmp);
381 void process_save_load_game_menu(int save)
384 switch (slot = menu_check(save ? &save_game_menu : &load_game_menu))
395 if(game_started == NO)
397 gameloop("default",slot - 1,ST_GL_LOAD_GAME);
399 menu_set_current(&main_menu);
404 st_pause_ticks_stop();
410 /* Handle changes made to global settings in the options menu. */
411 void process_options_menu(void)
413 switch (menu_check(&options_menu))
416 if(use_fullscreen != options_menu.item[2].toggled)
418 use_fullscreen = !use_fullscreen;
423 if(use_sound != options_menu.item[3].toggled)
424 use_sound = !use_sound;
427 if(use_music != options_menu.item[4].toggled)
440 if (!playing_music())
442 play_current_music();
448 if(show_fps != options_menu.item[5].toggled)
449 show_fps = !show_fps;
454 void st_general_setup(void)
456 /* Seed random number generator: */
458 srand(SDL_GetTicks());
460 /* Set icon image: */
464 /* Unicode needed for input handling: */
466 SDL_EnableUNICODE(1);
468 /* Load global images: */
470 text_load(&black_text,DATA_PREFIX "/images/status/letters-black.png", TEXT_TEXT, 16,18);
471 text_load(&gold_text,DATA_PREFIX "/images/status/letters-gold.png", TEXT_TEXT, 16,18);
472 text_load(&blue_text,DATA_PREFIX "/images/status/letters-blue.png", TEXT_TEXT, 16,18);
473 text_load(&red_text,DATA_PREFIX "/images/status/letters-red.png", TEXT_TEXT, 16,18);
474 text_load(&white_text,DATA_PREFIX "/images/status/letters-white.png", TEXT_TEXT, 16,18);
475 text_load(&white_small_text,DATA_PREFIX "/images/status/letters-white-small.png", TEXT_TEXT, 8,9);
476 text_load(&white_big_text,DATA_PREFIX "/images/status/letters-white-big.png", TEXT_TEXT, 20,23);
477 text_load(&yellow_nums,DATA_PREFIX "/images/status/numbers.png", TEXT_NUM, 32,32);
479 /* Load GUI/menu images: */
480 texture_load(&checkbox, DATA_PREFIX "/images/status/checkbox.png", USE_ALPHA);
481 texture_load(&checkbox_checked, DATA_PREFIX "/images/status/checkbox-checked.png", USE_ALPHA);
482 texture_load(&back, DATA_PREFIX "/images/status/back.png", USE_ALPHA);
483 texture_load(&arrow_left, DATA_PREFIX "/images/icons/left.png", USE_ALPHA);
484 texture_load(&arrow_right, DATA_PREFIX "/images/icons/right.png", USE_ALPHA);
488 void st_general_free(void)
491 /* Free global images: */
493 text_free(&black_text);
494 text_free(&gold_text);
495 text_free(&white_text);
496 text_free(&blue_text);
497 text_free(&red_text);
498 text_free(&white_small_text);
499 text_free(&white_big_text);
501 /* Free GUI/menu images: */
502 texture_free(&checkbox);
503 texture_free(&checkbox_checked);
505 texture_free(&arrow_left);
506 texture_free(&arrow_right);
510 menu_free(&main_menu);
511 menu_free(&game_menu);
512 menu_free(&options_menu);
513 menu_free(&highscore_menu);
514 menu_free(&save_game_menu);
515 menu_free(&load_game_menu);
519 void st_video_setup(void)
523 SDL_FreeSurface(screen);
525 /* Init SDL Video: */
527 if (SDL_Init(SDL_INIT_VIDEO) < 0)
530 "\nError: I could not initialize video!\n"
531 "The Simple DirectMedia error that occured was:\n"
532 "%s\n\n", SDL_GetError());
541 st_video_setup_sdl();
545 /* Set window manager stuff: */
547 SDL_WM_SetCaption("Super Tux", "Super Tux");
551 void st_video_setup_sdl(void)
553 SDL_FreeSurface(screen);
555 if (use_fullscreen == YES)
557 screen = SDL_SetVideoMode(640, 480, 0, SDL_FULLSCREEN ) ; /* | SDL_HWSURFACE); */
561 "\nWarning: I could not set up fullscreen video for "
563 "The Simple DirectMedia error that occured was:\n"
564 "%s\n\n", SDL_GetError());
570 screen = SDL_SetVideoMode(640, 480, 0, SDL_HWSURFACE | SDL_DOUBLEBUF );
575 "\nError: I could not set up video for 640x480 mode.\n"
576 "The Simple DirectMedia error that occured was:\n"
577 "%s\n\n", SDL_GetError());
583 void st_video_setup_gl(void)
587 SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
588 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
589 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
590 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
591 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
593 if (use_fullscreen == YES)
595 screen = SDL_SetVideoMode(640, 480, 0, SDL_FULLSCREEN | SDL_OPENGL) ; /* | SDL_HWSURFACE); */
599 "\nWarning: I could not set up fullscreen video for "
601 "The Simple DirectMedia error that occured was:\n"
602 "%s\n\n", SDL_GetError());
608 screen = SDL_SetVideoMode(640, 480, 0, SDL_OPENGL);
613 "\nError: I could not set up video for 640x480 mode.\n"
614 "The Simple DirectMedia error that occured was:\n"
615 "%s\n\n", SDL_GetError());
621 * Set up OpenGL for 2D rendering.
623 glDisable(GL_DEPTH_TEST);
624 glDisable(GL_CULL_FACE);
626 glViewport(0, 0, screen->w, screen->h);
627 glMatrixMode(GL_PROJECTION);
629 glOrtho(0, screen->w, screen->h, 0, -1.0, 1.0);
631 glMatrixMode(GL_MODELVIEW);
633 glTranslatef(0.0f, 0.0f, 0.0f);
639 void st_joystick_setup(void)
647 if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
649 fprintf(stderr, "Warning: I could not initialize joystick!\n"
650 "The Simple DirectMedia error that occured was:\n"
651 "%s\n\n", SDL_GetError());
659 if (SDL_NumJoysticks() <= 0)
661 fprintf(stderr, "Warning: No joysticks are available.\n");
667 js = SDL_JoystickOpen(0);
671 fprintf(stderr, "Warning: Could not open joystick 1.\n"
672 "The Simple DirectMedia error that occured was:\n"
673 "%s\n\n", SDL_GetError());
679 /* Check for proper joystick configuration: */
681 if (SDL_JoystickNumAxes(js) < 2)
684 "Warning: Joystick does not have enough axes!\n");
690 if (SDL_JoystickNumButtons(js) < 2)
694 "Joystick does not have enough buttons!\n");
706 void st_audio_setup(void)
709 /* Init SDL Audio silently even if --disable-sound : */
711 if (audio_device == YES)
713 if (SDL_Init(SDL_INIT_AUDIO) < 0)
715 /* only print out message if sound or music
716 was not disabled at command-line
718 if (use_sound == YES || use_music == YES)
721 "\nWarning: I could not initialize audio!\n"
722 "The Simple DirectMedia error that occured was:\n"
723 "%s\n\n", SDL_GetError());
725 /* keep the programming logic the same :-)
726 because in this case, use_sound & use_music' values are ignored
727 when there's no available audio device
736 /* Open sound silently regarless the value of "use_sound": */
738 if (audio_device == YES)
740 if (open_audio(44100, AUDIO_S16, 2, 2048) < 0)
742 /* only print out message if sound or music
743 was not disabled at command-line
745 if ((use_sound == YES) || (use_music == YES))
748 "\nWarning: I could not set up audio for 44100 Hz "
750 "The Simple DirectMedia error that occured was:\n"
751 "%s\n\n", SDL_GetError());
762 /* --- SHUTDOWN --- */
764 void st_shutdown(void)
773 void st_abort(char * reason, char * details)
775 fprintf(stderr, "\nError: %s\n%s\n\n", reason, details);
781 /* Set Icon (private) */
790 /* Load icon into a surface: */
792 icon = IMG_Load(DATA_PREFIX "/images/icon.png");
796 "\nError: I could not load the icon image: %s\n"
797 "The Simple DirectMedia error that occured was:\n"
798 "%s\n\n", DATA_PREFIX "/images/icon.png", SDL_GetError());
805 masklen = (((icon -> w) + 7) / 8) * (icon -> h);
806 mask = (Uint8*) malloc(masklen * sizeof(Uint8));
807 memset(mask, 0xFF, masklen);
812 SDL_WM_SetIcon(icon, mask);
815 /* Free icon surface & mask: */
818 SDL_FreeSurface(icon);
822 /* Parse command-line arguments: */
824 void parseargs(int argc, char * argv[])
848 /* Parse arguments: */
850 for (i = 1; i < argc; i++)
852 if (strcmp(argv[i], "--fullscreen") == 0 ||
853 strcmp(argv[i], "-f") == 0)
855 /* Use full screen: */
857 use_fullscreen = YES;
859 else if (strcmp(argv[i], "--worldmap") == 0)
861 launch_worldmap_mode = true;
863 else if (strcmp(argv[i], "--show-fps") == 0)
865 /* Use full screen: */
869 else if (strcmp(argv[i], "--opengl") == 0 ||
870 strcmp(argv[i], "-gl") == 0)
879 else if (strcmp(argv[i], "--usage") == 0)
885 else if (strcmp(argv[i], "--version") == 0)
889 printf("Super Tux - version " VERSION "\n");
892 else if (strcmp(argv[i], "--disable-sound") == 0)
894 /* Disable the compiled in sound feature */
896 printf("Sounds disabled \n");
900 printf("Warning: Sound capability has not been compiled into this build.\n");
904 else if (strcmp(argv[i], "--disable-music") == 0)
906 /* Disable the compiled in sound feature */
908 printf("Music disabled \n");
912 printf("Warning: Music feature is not compiled in \n");
916 else if (strcmp(argv[i], "--debug-mode") == 0)
918 /* Enable the debug-mode */
922 else if (strcmp(argv[i], "--help") == 0)
924 puts("Super Tux " VERSION "\n"
925 " Please see the file \"README.txt\" for more details.\n");
926 printf("Usage: %s [OPTIONS] FILENAME\n\n", argv[0]);
927 puts("Display Options:\n"
928 " --fullscreen Run in fullscreen mode.\n"
929 " --opengl If opengl support was compiled in, this will enable\n"
930 " the EXPERIMENTAL OpenGL mode.\n"
933 " --disable-sound If sound support was compiled in, this will\n"
934 " disable sound for this session of the game.\n"
935 " --disable-music Like above, but this will disable music.\n"
938 " --worldmap Start in worldmap-mode (EXPERIMENTAL)\n"
939 " --debug-mode Enables the debug-mode, which is useful for developers.\n"
940 " --help Display a help message summarizing command-line\n"
941 " options, license and game controls.\n"
942 " --usage Display a brief message summarizing command-line options.\n"
943 " --version Display the version of SuperTux you're running.\n\n"
947 else if (argv[i][0] != '-')
949 level_startup_file = argv[i];
953 /* Unknown - complain! */
963 void usage(char * prog, int ret)
968 /* Determine which stream to write to: */
976 /* Display the usage message: */
978 fprintf(fi, "Usage: %s [--fullscreen] [--opengl] [--disable-sound] [--disable-music] [--debug-mode] | [--usage | --help | --version] [--worldmap] FILENAME\n",