83eac4c180ec610ed0c6e362860758cf0b447fc0
[supertux.git] / src / setup.cpp
1 //  $Id$
2 //
3 //  SuperTux -  A Jump'n Run
4 //  Copyright (C) 2000 Bill Kendrick <bill@newbreedsoftware.com>
5 //
6 //  This program is free software; you can redistribute it and/or
7 //  modify it under the terms of the GNU General Public License
8 //  as published by the Free Software Foundation; either version 2
9 //  of the License, or (at your option) any later version.
10 //
11 //  This program is distributed in the hope that it will be useful,
12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 //  GNU General Public License for more details.
15 //
16 //  You should have received a copy of the GNU General Public License
17 //  along with this program; if not, write to the Free Software
18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19
20 #include <assert.h>
21 #include <stdio.h>
22 #include <iostream>
23 #include <stdio.h>
24 #include <stdlib.h>
25 #include <string.h>
26 #include <errno.h>
27 #include <unistd.h>
28 #include <SDL.h>
29 #include <SDL_image.h>
30 #ifndef NOOPENGL
31 #include <SDL_opengl.h>
32 #endif
33
34 #include <sys/stat.h>
35 #include <sys/types.h>
36 #include <dirent.h>
37 #ifndef WIN32
38 #include <libgen.h>
39 #endif
40 #include <ctype.h>
41
42 #include "defines.h"
43 #include "globals.h"
44 #include "setup.h"
45 #include "screen/screen.h"
46 #include "screen/texture.h"
47 #include "menu.h"
48 #include "gameloop.h"
49 #include "configfile.h"
50 #include "scene.h"
51 #include "worldmap.h"
52 #include "resources.h"
53 #include "intro.h"
54 #include "sound_manager.h"
55
56 #include "player.h"
57
58 #ifdef WIN32
59 #define mkdir(dir, mode)    mkdir(dir)
60 // on win32 we typically don't want LFS paths
61 #undef DATA_PREFIX
62 #define DATA_PREFIX "./data/"
63 #endif
64
65 /* Screen proprities: */
66 /* Don't use this to test for the actual screen sizes. Use screen->w/h instead! */
67 #define SCREEN_W 800
68 #define SCREEN_H 600
69
70 /* Local function prototypes: */
71
72 void seticon(void);
73 void usage(char * prog, int ret);
74
75 /* Does the given file exist and is it accessible? */
76 int faccessible(const char *filename)
77 {
78   struct stat filestat;
79   if (stat(filename, &filestat) == -1)
80     {
81       return false;
82     }
83   else
84     {
85       if(S_ISREG(filestat.st_mode))
86         return true;
87       else
88         return false;
89     }
90 }
91
92 /* Can we write to this location? */
93 int fwriteable(const char *filename)
94 {
95   FILE* fi;
96   fi = fopen(filename, "wa");
97   if (fi == NULL)
98     {
99       return false;
100     }
101   return true;
102 }
103
104 /* Makes sure a directory is created in either the SuperTux home directory or the SuperTux base directory.*/
105 int fcreatedir(const char* relative_dir)
106 {
107   char path[1024];
108   snprintf(path, 1024, "%s/%s/", st_dir, relative_dir);
109   if(mkdir(path,0755) != 0)
110     {
111       snprintf(path, 1024, "%s/%s/", datadir.c_str(), relative_dir);
112       if(mkdir(path,0755) != 0)
113         {
114           return false;
115         }
116       else
117         {
118           return true;
119         }
120     }
121   else
122     {
123       return true;
124     }
125 }
126
127 FILE * opendata(const char * rel_filename, const char * mode)
128 {
129   char * filename = NULL;
130   FILE * fi;
131
132   filename = (char *) malloc(sizeof(char) * (strlen(st_dir) +
133                                              strlen(rel_filename) + 1));
134
135   strcpy(filename, st_dir);
136   /* Open the high score file: */
137
138   strcat(filename, rel_filename);
139
140   /* Try opening the file: */
141   fi = fopen(filename, mode);
142
143   if (fi == NULL)
144     {
145       fprintf(stderr, "Warning: Unable to open the file \"%s\" ", filename);
146
147       if (strcmp(mode, "r") == 0)
148         fprintf(stderr, "for read!!!\n");
149       else if (strcmp(mode, "w") == 0)
150         fprintf(stderr, "for write!!!\n");
151     }
152   free( filename );
153
154   return(fi);
155 }
156
157 /* Get all names of sub-directories in a certain directory. */
158 /* Returns the number of sub-directories found. */
159 /* Note: The user has to free the allocated space. */
160 string_list_type dsubdirs(const char *rel_path,const  char* expected_file)
161 {
162   DIR *dirStructP;
163   struct dirent *direntp;
164   string_list_type sdirs;
165   char filename[1024];
166   char path[1024];
167
168   string_list_init(&sdirs);
169   sprintf(path,"%s/%s",st_dir,rel_path);
170   if((dirStructP = opendir(path)) != NULL)
171     {
172       while((direntp = readdir(dirStructP)) != NULL)
173         {
174           char absolute_filename[1024];
175           struct stat buf;
176
177           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
178
179           if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
180             {
181               if(expected_file != NULL)
182                 {
183                   sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
184                   if(!faccessible(filename))
185                     continue;
186                 }
187
188               string_list_add_item(&sdirs,direntp->d_name);
189             }
190         }
191       closedir(dirStructP);
192     }
193
194   sprintf(path,"%s/%s",datadir.c_str(),rel_path);
195   if((dirStructP = opendir(path)) != NULL)
196     {
197       while((direntp = readdir(dirStructP)) != NULL)
198         {
199           char absolute_filename[1024];
200           struct stat buf;
201
202           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
203
204           if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
205             {
206               if(expected_file != NULL)
207                 {
208                   sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
209                   if(!faccessible(filename))
210                     {
211                       continue;
212                     }
213                   else
214                     {
215                       sprintf(filename,"%s/%s/%s/%s",st_dir,rel_path,direntp->d_name,expected_file);
216                       if(faccessible(filename))
217                         continue;
218                     }
219                 }
220
221               string_list_add_item(&sdirs,direntp->d_name);
222             }
223         }
224       closedir(dirStructP);
225     }
226
227   return sdirs;
228 }
229
230 string_list_type dfiles(const char *rel_path, const  char* glob, const  char* exception_str)
231 {
232   DIR *dirStructP;
233   struct dirent *direntp;
234   string_list_type sdirs;
235   char path[1024];
236
237   string_list_init(&sdirs);
238   sprintf(path,"%s/%s",st_dir,rel_path);
239   if((dirStructP = opendir(path)) != NULL)
240     {
241       while((direntp = readdir(dirStructP)) != NULL)
242         {
243           char absolute_filename[1024];
244           struct stat buf;
245
246           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
247
248           if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
249             {
250               if(exception_str != NULL)
251                 {
252                   if(strstr(direntp->d_name,exception_str) != NULL)
253                     continue;
254                 }
255               if(glob != NULL)
256                 if(strstr(direntp->d_name,glob) == NULL)
257                   continue;
258
259               string_list_add_item(&sdirs,direntp->d_name);
260             }
261         }
262       closedir(dirStructP);
263     }
264
265   sprintf(path,"%s/%s",datadir.c_str(),rel_path);
266   if((dirStructP = opendir(path)) != NULL)
267     {
268       while((direntp = readdir(dirStructP)) != NULL)
269         {
270           char absolute_filename[1024];
271           struct stat buf;
272
273           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
274
275           if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
276             {
277               if(exception_str != NULL)
278                 {
279                   if(strstr(direntp->d_name,exception_str) != NULL)
280                     continue;
281                 }
282               if(glob != NULL)
283                 if(strstr(direntp->d_name,glob) == NULL)
284                   continue;
285
286               string_list_add_item(&sdirs,direntp->d_name);
287             }
288         }
289       closedir(dirStructP);
290     }
291
292   return sdirs;
293 }
294
295 void free_strings(char **strings, int num)
296 {
297   int i;
298   for(i=0; i < num; ++i)
299     free(strings[i]);
300 }
301
302 /* --- SETUP --- */
303 /* Set SuperTux configuration and save directories */
304 void st_directory_setup(void)
305 {
306   char *home;
307   char str[1024];
308   /* Get home directory (from $HOME variable)... if we can't determine it,
309      use the current directory ("."): */
310   if (getenv("HOME") != NULL)
311     home = getenv("HOME");
312   else
313     home = ".";
314
315   st_dir = (char *) malloc(sizeof(char) * (strlen(home) +
316                                            strlen("/.supertux") + 1));
317   strcpy(st_dir, home);
318   strcat(st_dir, "/.supertux");
319
320   /* Remove .supertux config-file from old SuperTux versions */
321   if(faccessible(st_dir))
322     {
323       remove
324         (st_dir);
325     }
326
327   st_save_dir = (char *) malloc(sizeof(char) * (strlen(st_dir) + strlen("/save") + 1));
328
329   strcpy(st_save_dir,st_dir);
330   strcat(st_save_dir,"/save");
331
332   /* Create them. In the case they exist they won't destroy anything. */
333   mkdir(st_dir, 0755);
334   mkdir(st_save_dir, 0755);
335
336   sprintf(str, "%s/levels", st_dir);
337   mkdir(str, 0755);
338
339   // User has not that a datadir, so we try some magic
340   if (datadir.empty())
341     {
342 #ifndef WIN32
343       // Detect datadir
344       char exe_file[PATH_MAX];
345       if (readlink("/proc/self/exe", exe_file, PATH_MAX) < 0)
346         {
347           puts("Couldn't read /proc/self/exe, using default path: " DATA_PREFIX);
348           datadir = DATA_PREFIX;
349         }
350       else
351         {
352           std::string exedir = std::string(dirname(exe_file)) + "/";
353           
354           datadir = exedir + "../data"; // SuperTux run from source dir
355           if (access(datadir.c_str(), F_OK) != 0)
356             {
357               datadir = exedir + "../share/supertux"; // SuperTux run from PATH
358               if (access(datadir.c_str(), F_OK) != 0) 
359                 { // If all fails, fall back to compiled path
360                   datadir = DATA_PREFIX; 
361                 }
362             }
363         }
364 #else
365   datadir = DATA_PREFIX;
366 #endif
367     }
368   printf("Datadir: %s\n", datadir.c_str());
369 }
370
371 /* Create and setup menus. */
372 void st_menu(void)
373 {
374   main_menu      = new Menu();
375   options_menu   = new Menu();
376   options_keys_menu     = new Menu();
377   options_joystick_menu = new Menu();
378   load_game_menu = new Menu();
379   save_game_menu = new Menu();
380   game_menu      = new Menu();
381   highscore_menu = new Menu();
382   contrib_menu   = new Menu();
383   contrib_subset_menu   = new Menu();
384   worldmap_menu  = new Menu();
385
386   main_menu->set_pos(screen->w/2, 335);
387   main_menu->additem(MN_GOTO, "Start Game",0,load_game_menu, MNID_STARTGAME);
388   main_menu->additem(MN_GOTO, "Contrib Levels",0,contrib_menu, MNID_CONTRIB);
389   main_menu->additem(MN_GOTO, "Options",0,options_menu, MNID_OPTIONMENU);
390   main_menu->additem(MN_ACTION,"Level Editor",0,0, MNID_LEVELEDITOR);
391   main_menu->additem(MN_ACTION,"Credits",0,0, MNID_CREDITS);
392   main_menu->additem(MN_ACTION,"Quit",0,0, MNID_QUITMAINMENU);
393
394   options_menu->additem(MN_LABEL,"Options",0,0);
395   options_menu->additem(MN_HL,"",0,0);
396 #ifndef NOOPENGL
397   options_menu->additem(MN_TOGGLE,"OpenGL",use_gl,0, MNID_OPENGL);
398 #else
399   options_menu->additem(MN_DEACTIVE,"OpenGL (not supported)",use_gl, 0, MNID_OPENGL);
400 #endif
401   options_menu->additem(MN_TOGGLE,"Fullscreen",use_fullscreen,0, MNID_FULLSCREEN);
402   if(audio_device)
403     {
404       options_menu->additem(MN_TOGGLE,"Sound     ", use_sound,0, MNID_SOUND);
405       options_menu->additem(MN_TOGGLE,"Music     ", use_music,0, MNID_MUSIC);
406     }
407   else
408     {
409       options_menu->additem(MN_DEACTIVE,"Sound     ", false,0, MNID_SOUND);
410       options_menu->additem(MN_DEACTIVE,"Music     ", false,0, MNID_MUSIC);
411     }
412   options_menu->additem(MN_TOGGLE,"Show FPS  ",show_fps,0, MNID_SHOWFPS);
413   options_menu->additem(MN_GOTO,"Keyboard Setup",0,options_keys_menu);
414
415   if(use_joystick)
416     options_menu->additem(MN_GOTO,"Joystick Setup",0,options_joystick_menu);
417
418   options_menu->additem(MN_HL,"",0,0);
419   options_menu->additem(MN_BACK,"Back",0,0);
420   
421   options_keys_menu->additem(MN_LABEL,"Key Setup",0,0);
422   options_keys_menu->additem(MN_HL,"",0,0);
423   options_keys_menu->additem(MN_CONTROLFIELD_KB,"Left move", 0,0, 0,&keymap.left);
424   options_keys_menu->additem(MN_CONTROLFIELD_KB,"Right move", 0,0, 0,&keymap.right);
425   options_keys_menu->additem(MN_CONTROLFIELD_KB,"Jump", 0,0, 0,&keymap.jump);
426   options_keys_menu->additem(MN_CONTROLFIELD_KB,"Duck", 0,0, 0,&keymap.duck);
427   options_keys_menu->additem(MN_CONTROLFIELD_KB,"Activate", 0, 0, 0,
428           &keymap.activate);
429   options_keys_menu->additem(MN_CONTROLFIELD_KB,"Power/Run", 0,0, 0,&keymap.fire);
430   options_keys_menu->additem(MN_HL,"",0,0);
431   options_keys_menu->additem(MN_BACK,"Back",0,0);
432
433   if(use_joystick)
434     {
435     options_joystick_menu->additem(MN_LABEL,"Joystick Setup",0,0);
436     options_joystick_menu->additem(MN_HL,"",0,0);
437     //options_joystick_menu->additem(MN_CONTROLFIELD_JS,"X axis", 0,0, 0,&joystick_keymap.x_axis);
438     //options_joystick_menu->additem(MN_CONTROLFIELD_JS,"Y axis", 0,0, 0,&joystick_keymap.y_axis);
439     options_joystick_menu->additem(MN_CONTROLFIELD_JS,"A button", 0,0, 0,&joystick_keymap.a_button);
440     options_joystick_menu->additem(MN_CONTROLFIELD_JS,"B button", 0,0, 0,&joystick_keymap.b_button);
441     //options_joystick_menu->additem(MN_CONTROLFIELD_JS,"Start", 0,0, 0,&joystick_keymap.start_button);
442     //options_joystick_menu->additem(MN_CONTROLFIELD_JS,"DeadZone", 0,0, 0,&joystick_keymap.dead_zone);
443     options_joystick_menu->additem(MN_HL,"",0,0);
444     options_joystick_menu->additem(MN_BACK,"Back",0,0);
445     }
446   
447   load_game_menu->additem(MN_LABEL,"Start Game",0,0);
448   load_game_menu->additem(MN_HL,"",0,0);
449   load_game_menu->additem(MN_DEACTIVE,"Slot 1",0,0, 1);
450   load_game_menu->additem(MN_DEACTIVE,"Slot 2",0,0, 2);
451   load_game_menu->additem(MN_DEACTIVE,"Slot 3",0,0, 3);
452   load_game_menu->additem(MN_DEACTIVE,"Slot 4",0,0, 4);
453   load_game_menu->additem(MN_DEACTIVE,"Slot 5",0,0, 5);
454   load_game_menu->additem(MN_HL,"",0,0);
455   load_game_menu->additem(MN_BACK,"Back",0,0);
456
457   save_game_menu->additem(MN_LABEL,"Save Game",0,0);
458   save_game_menu->additem(MN_HL,"",0,0);
459   save_game_menu->additem(MN_DEACTIVE,"Slot 1",0,0, 1);
460   save_game_menu->additem(MN_DEACTIVE,"Slot 2",0,0, 2);
461   save_game_menu->additem(MN_DEACTIVE,"Slot 3",0,0, 3);
462   save_game_menu->additem(MN_DEACTIVE,"Slot 4",0,0, 4);
463   save_game_menu->additem(MN_DEACTIVE,"Slot 5",0,0, 5);
464   save_game_menu->additem(MN_HL,"",0,0);
465   save_game_menu->additem(MN_BACK,"Back",0,0);
466
467   game_menu->additem(MN_LABEL,"Pause",0,0);
468   game_menu->additem(MN_HL,"",0,0);
469   game_menu->additem(MN_ACTION,"Continue",0,0,MNID_CONTINUE);
470   game_menu->additem(MN_GOTO,"Options",0,options_menu);
471   game_menu->additem(MN_HL,"",0,0);
472   game_menu->additem(MN_ACTION,"Abort Level",0,0,MNID_ABORTLEVEL);
473
474   worldmap_menu->additem(MN_LABEL,"Pause",0,0);
475   worldmap_menu->additem(MN_HL,"",0,0);
476   worldmap_menu->additem(MN_ACTION,"Continue",0,0,MNID_RETURNWORLDMAP);
477   worldmap_menu->additem(MN_GOTO,"Options",0,options_menu);
478   worldmap_menu->additem(MN_HL,"",0,0);
479   worldmap_menu->additem(MN_ACTION,"Quit Game",0,0,MNID_QUITWORLDMAP);
480
481   highscore_menu->additem(MN_TEXTFIELD,"Enter your name:",0,0);
482 }
483
484 void update_load_save_game_menu(Menu* pmenu)
485 {
486   for(int i = 2; i < 7; ++i)
487     {
488       // FIXME: Insert a real savegame struct/class here instead of
489       // doing string vodoo
490       std::string tmp = slotinfo(i - 1);
491       pmenu->item[i].kind = MN_ACTION;
492       pmenu->item[i].change_text(tmp.c_str());
493     }
494 }
495
496 bool process_load_game_menu()
497 {
498   int slot = load_game_menu->check();
499
500   if(slot != -1 && load_game_menu->get_item_by_id(slot).kind == MN_ACTION)
501     {
502       char slotfile[1024];
503       snprintf(slotfile, 1024, "%s/slot%d.stsg", st_save_dir, slot);
504
505       if (access(slotfile, F_OK) != 0)
506         {
507           draw_intro();
508         }
509
510       // shrink_fade(Point((screen->w/2),(screen->h/2)), 1000);
511       fadeout(256);
512       WorldMapNS::WorldMap worldmap;
513      
514       // Load the game or at least set the savegame_file variable
515       worldmap.loadgame(slotfile);
516
517       worldmap.display();
518       
519       Menu::set_current(main_menu);
520
521       st_pause_ticks_stop();
522       return true;
523     }
524   else
525     {
526       return false;
527     }
528 }
529
530 /* Handle changes made to global settings in the options menu. */
531 void process_options_menu(void)
532 {
533   switch (options_menu->check())
534     {
535     case MNID_OPENGL:
536 #ifndef NOOPENGL
537       if(use_gl != options_menu->isToggled(MNID_OPENGL))
538         {
539           use_gl = !use_gl;
540           st_video_setup();
541         }
542 #else
543       options_menu->get_item_by_id(MNID_OPENGL).toggled = false;
544 #endif
545       break;
546     case MNID_FULLSCREEN:
547       if(use_fullscreen != options_menu->isToggled(MNID_FULLSCREEN))
548         {
549           use_fullscreen = !use_fullscreen;
550           st_video_setup();
551         }
552       break;
553     case MNID_SOUND:
554       if(use_sound != options_menu->isToggled(MNID_SOUND))
555         use_sound = !use_sound;
556       break;
557     case MNID_MUSIC:
558       if(use_music != options_menu->isToggled(MNID_MUSIC))
559         {
560           use_music = !use_music;
561           sound_manager->enable_music(use_music);
562         }
563       break;
564     case MNID_SHOWFPS:
565       if(show_fps != options_menu->isToggled(MNID_SHOWFPS))
566         show_fps = !show_fps;
567       break;
568     }
569 }
570
571 void st_general_setup(void)
572 {
573   /* Seed random number generator: */
574
575   srand(SDL_GetTicks());
576
577   /* Set icon image: */
578
579   seticon();
580
581   /* Unicode needed for input handling: */
582
583   SDL_EnableUNICODE(1);
584
585   /* Load global images: */
586
587   black_text  = new Font(datadir + "/images/status/letters-black.png",
588       Font::TEXT, 16,18);
589   gold_text   = new Font(datadir + "/images/status/letters-gold.png",
590       Font::TEXT, 16,18);
591   silver_text = new Font(datadir + "/images/status/letters-silver.png",
592       Font::TEXT, 16,18);
593   blue_text   = new Font(datadir + "/images/status/letters-blue.png",
594       Font::TEXT, 16, 18, 3);
595   red_text    = new Font(datadir + "/images/status/letters-red.png",
596       Font::TEXT, 16,18);
597   green_text  = new Font(datadir + "/images/status/letters-green.png",
598       Font::TEXT, 16,18);
599   white_text  = new Font(datadir + "/images/fonts/letters-white.png",
600       Font::TEXT, 16,18);
601   white_small_text = new Font(datadir +
602       "/images/status/letters-white-small.png", Font::TEXT, 8,9, 1);
603   white_big_text   = new Font(datadir + "/images/fonts/letters-white-big.png",
604       Font::TEXT, 20,22, 3);
605   yellow_nums = new Font(datadir + "/images/status/numbers.png",
606       Font::TEXT, 32,32);
607
608   /* Load GUI/menu images: */
609   checkbox = new Surface(datadir + "/images/status/checkbox.png", USE_ALPHA);
610   checkbox_checked = new Surface(datadir + "/images/status/checkbox-checked.png", USE_ALPHA);
611   back = new Surface(datadir + "/images/status/back.png", USE_ALPHA);
612   arrow_left = new Surface(datadir + "/images/icons/left.png", USE_ALPHA);
613   arrow_right = new Surface(datadir + "/images/icons/right.png", USE_ALPHA);
614
615   /* Load the mouse-cursor */
616   mouse_cursor = new MouseCursor( datadir + "/images/status/mousecursor.png",1);
617   MouseCursor::set_current(mouse_cursor);
618   
619 }
620
621 void st_general_free(void)
622 {
623
624   /* Free global images: */
625   delete black_text;
626   delete gold_text;
627   delete silver_text;
628   delete white_text;
629   delete blue_text;
630   delete red_text;
631   delete green_text;
632   delete white_small_text;
633   delete white_big_text;
634   delete yellow_nums;
635
636   /* Free GUI/menu images: */
637   delete checkbox;
638   delete checkbox_checked;
639   delete back;
640   delete arrow_left;
641   delete arrow_right;
642
643   /* Free mouse-cursor */
644   delete mouse_cursor;
645   
646   /* Free menus */
647   delete main_menu;
648   delete game_menu;
649   delete options_menu;
650   delete highscore_menu;
651   delete save_game_menu;
652   delete load_game_menu;
653 }
654
655 void st_video_setup(void)
656 {
657   /* Init SDL Video: */
658   if (SDL_Init(SDL_INIT_VIDEO) < 0)
659     {
660       fprintf(stderr,
661               "\nError: I could not initialize video!\n"
662               "The Simple DirectMedia error that occured was:\n"
663               "%s\n\n", SDL_GetError());
664       exit(1);
665     }
666
667   /* Open display: */
668   if(use_gl)
669     st_video_setup_gl();
670   else
671     st_video_setup_sdl();
672
673   Surface::reload_all();
674
675   /* Set window manager stuff: */
676   SDL_WM_SetCaption("SuperTux " VERSION, "SuperTux");
677 }
678
679 void st_video_setup_sdl(void)
680 {
681   if (use_fullscreen)
682     {
683       screen = SDL_SetVideoMode(SCREEN_W, SCREEN_H, 0, SDL_FULLSCREEN ) ; /* | SDL_HWSURFACE); */
684       if (screen == NULL)
685         {
686           fprintf(stderr,
687                   "\nWarning: I could not set up fullscreen video for "
688                   "640x480 mode.\n"
689                   "The Simple DirectMedia error that occured was:\n"
690                   "%s\n\n", SDL_GetError());
691           use_fullscreen = false;
692         }
693     }
694   else
695     {
696       screen = SDL_SetVideoMode(SCREEN_W, SCREEN_H, 0, SDL_HWSURFACE | SDL_DOUBLEBUF );
697
698       if (screen == NULL)
699         {
700           fprintf(stderr,
701                   "\nError: I could not set up video for 640x480 mode.\n"
702                   "The Simple DirectMedia error that occured was:\n"
703                   "%s\n\n", SDL_GetError());
704           exit(1);
705         }
706     }
707 }
708
709 void st_video_setup_gl(void)
710 {
711 #ifndef NOOPENGL
712
713   SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
714   SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
715   SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
716   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
717   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
718
719   if (use_fullscreen)
720     {
721       screen = SDL_SetVideoMode(SCREEN_W, SCREEN_H, 0, SDL_FULLSCREEN | SDL_OPENGL) ; /* | SDL_HWSURFACE); */
722       if (screen == NULL)
723         {
724           fprintf(stderr,
725                   "\nWarning: I could not set up fullscreen video for "
726                   "640x480 mode.\n"
727                   "The Simple DirectMedia error that occured was:\n"
728                   "%s\n\n", SDL_GetError());
729           use_fullscreen = false;
730         }
731     }
732   else
733     {
734       screen = SDL_SetVideoMode(SCREEN_W, SCREEN_H, 0, SDL_OPENGL);
735
736       if (screen == NULL)
737         {
738           fprintf(stderr,
739                   "\nError: I could not set up video for 640x480 mode.\n"
740                   "The Simple DirectMedia error that occured was:\n"
741                   "%s\n\n", SDL_GetError());
742           exit(1);
743         }
744     }
745
746   /*
747    * Set up OpenGL for 2D rendering.
748    */
749   glDisable(GL_DEPTH_TEST);
750   glDisable(GL_CULL_FACE);
751
752   glViewport(0, 0, screen->w, screen->h);
753   glMatrixMode(GL_PROJECTION);
754   glLoadIdentity();
755   glOrtho(0, screen->w, screen->h, 0, -1.0, 1.0);
756
757   glMatrixMode(GL_MODELVIEW);
758   glLoadIdentity();
759   glTranslatef(0.0f, 0.0f, 0.0f);
760
761 #endif
762
763 }
764
765 void st_joystick_setup(void)
766 {
767
768   /* Init Joystick: */
769
770   use_joystick = true;
771
772   if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
773     {
774       fprintf(stderr, "Warning: I could not initialize joystick!\n"
775               "The Simple DirectMedia error that occured was:\n"
776               "%s\n\n", SDL_GetError());
777
778       use_joystick = false;
779     }
780   else
781     {
782       /* Open joystick: */
783       if (SDL_NumJoysticks() <= 0)
784         {
785           fprintf(stderr, "Warning: No joysticks are available.\n");
786
787           use_joystick = false;
788         }
789       else
790         {
791           js = SDL_JoystickOpen(joystick_num);
792
793           if (js == NULL)
794             {
795               fprintf(stderr, "Warning: Could not open joystick %d.\n"
796                       "The Simple DirectMedia error that occured was:\n"
797                       "%s\n\n", joystick_num, SDL_GetError());
798
799               use_joystick = false;
800             }
801           else
802             {
803               if (SDL_JoystickNumAxes(js) < 2)
804                 {
805                   fprintf(stderr,
806                           "Warning: Joystick does not have enough axes!\n");
807
808                   use_joystick = false;
809                 }
810               else
811                 {
812                   if (SDL_JoystickNumButtons(js) < 2)
813                     {
814                       fprintf(stderr,
815                               "Warning: "
816                               "Joystick does not have enough buttons!\n");
817
818                       use_joystick = false;
819                     }
820                 }
821             }
822         }
823     }
824 }
825
826 void st_audio_setup(void)
827 {
828
829   /* Init SDL Audio silently even if --disable-sound : */
830
831   if (audio_device)
832     {
833       if (SDL_Init(SDL_INIT_AUDIO) < 0)
834         {
835           /* only print out message if sound or music
836              was not disabled at command-line
837            */
838           if (use_sound || use_music)
839             {
840               fprintf(stderr,
841                       "\nWarning: I could not initialize audio!\n"
842                       "The Simple DirectMedia error that occured was:\n"
843                       "%s\n\n", SDL_GetError());
844             }
845           /* keep the programming logic the same :-)
846              because in this case, use_sound & use_music' values are ignored
847              when there's no available audio device
848           */
849           use_sound = false;
850           use_music = false;
851           audio_device = false;
852         }
853     }
854
855
856   /* Open sound silently regarless the value of "use_sound": */
857
858   if (audio_device)
859     {
860       if (open_audio(44100, AUDIO_S16, 2, 2048) < 0)
861         {
862           /* only print out message if sound or music
863              was not disabled at command-line
864            */
865           if (use_sound || use_music)
866             {
867               fprintf(stderr,
868                       "\nWarning: I could not set up audio for 44100 Hz "
869                       "16-bit stereo.\n"
870                       "The Simple DirectMedia error that occured was:\n"
871                       "%s\n\n", SDL_GetError());
872             }
873           use_sound = false;
874           use_music = false;
875           audio_device = false;
876         }
877     }
878
879 }
880
881
882 /* --- SHUTDOWN --- */
883
884 void st_shutdown(void)
885 {
886   close_audio();
887   SDL_Quit();
888   saveconfig();
889 }
890
891 /* --- ABORT! --- */
892
893 void st_abort(const std::string& reason, const std::string& details)
894 {
895   fprintf(stderr, "\nError: %s\n%s\n\n", reason.c_str(), details.c_str());
896   st_shutdown();
897   abort();
898 }
899
900 /* Set Icon (private) */
901
902 void seticon(void)
903 {
904 //  int masklen;
905 //  Uint8 * mask;
906   SDL_Surface * icon;
907
908
909   /* Load icon into a surface: */
910
911   icon = IMG_Load((datadir + "/images/supertux.xpm").c_str());
912   if (icon == NULL)
913     {
914       fprintf(stderr,
915               "\nError: I could not load the icon image: %s%s\n"
916               "The Simple DirectMedia error that occured was:\n"
917               "%s\n\n", datadir.c_str(), "/images/supertux.xpm", SDL_GetError());
918       exit(1);
919     }
920
921
922   /* Create mask: */
923 /*
924   masklen = (((icon -> w) + 7) / 8) * (icon -> h);
925   mask = (Uint8*) malloc(masklen * sizeof(Uint8));
926   memset(mask, 0xFF, masklen);
927 */
928
929   /* Set icon: */
930
931   SDL_WM_SetIcon(icon, NULL);//mask);
932
933
934   /* Free icon surface & mask: */
935
936 //  free(mask);
937   SDL_FreeSurface(icon);
938 }
939
940
941 /* Parse command-line arguments: */
942
943 void parseargs(int argc, char * argv[])
944 {
945   int i;
946
947   loadconfig();
948
949   /* Parse arguments: */
950
951   for (i = 1; i < argc; i++)
952     {
953       if (strcmp(argv[i], "--fullscreen") == 0 ||
954           strcmp(argv[i], "-f") == 0)
955         {
956           /* Use full screen: */
957
958           use_fullscreen = true;
959         }
960       else if (strcmp(argv[i], "--joystick") == 0 || strcmp(argv[i], "-j") == 0)
961         {
962           assert(i+1 < argc);
963           joystick_num = atoi(argv[++i]);
964         }
965       else if (strcmp(argv[i], "--joymap") == 0)
966         {
967           assert(i+1 < argc);
968           if (sscanf(argv[++i],
969                      "%d:%d:%d:%d:%d", 
970                      &joystick_keymap.x_axis, 
971                      &joystick_keymap.y_axis, 
972                      &joystick_keymap.a_button, 
973                      &joystick_keymap.b_button, 
974                      &joystick_keymap.start_button) != 5)
975             {
976               puts("Warning: Invalid or incomplete joymap, should be: 'XAXIS:YAXIS:A:B:START'");
977             }
978           else
979             {
980               std::cout << "Using new joymap:\n"
981                         << "  X-Axis:       " << joystick_keymap.x_axis << "\n"
982                         << "  Y-Axis:       " << joystick_keymap.y_axis << "\n"
983                         << "  A-Button:     " << joystick_keymap.a_button << "\n"
984                         << "  B-Button:     " << joystick_keymap.b_button << "\n"
985                         << "  Start-Button: " << joystick_keymap.start_button << std::endl;
986             }
987         }
988       else if (strcmp(argv[i], "--leveleditor") == 0)
989         {
990           launch_leveleditor_mode = true;
991         }
992       else if (strcmp(argv[i], "--datadir") == 0 
993                || strcmp(argv[i], "-d") == 0 )
994         {
995           assert(i+1 < argc);
996           datadir = argv[++i];
997         }
998       else if (strcmp(argv[i], "--show-fps") == 0)
999         {
1000           /* Use full screen: */
1001
1002           show_fps = true;
1003         }
1004       else if (strcmp(argv[i], "--opengl") == 0 ||
1005                strcmp(argv[i], "-gl") == 0)
1006         {
1007 #ifndef NOOPENGL
1008           /* Use OpengGL: */
1009
1010           use_gl = true;
1011 #endif
1012         }
1013       else if (strcmp(argv[i], "--sdl") == 0)
1014           {
1015             use_gl = false;
1016           }
1017       else if (strcmp(argv[i], "--usage") == 0)
1018         {
1019           /* Show usage: */
1020
1021           usage(argv[0], 0);
1022         }
1023       else if (strcmp(argv[i], "--version") == 0)
1024         {
1025           /* Show version: */
1026           printf("SuperTux " VERSION "\n");
1027           exit(0);
1028         }
1029       else if (strcmp(argv[i], "--disable-sound") == 0)
1030         {
1031           /* Disable the compiled in sound feature */
1032           printf("Sounds disabled \n");
1033           use_sound = false;
1034           audio_device = false;
1035         }
1036       else if (strcmp(argv[i], "--disable-music") == 0)
1037         {
1038           /* Disable the compiled in sound feature */
1039           printf("Music disabled \n");
1040           use_music = false;
1041         }
1042       else if (strcmp(argv[i], "--debug-mode") == 0)
1043         {
1044           /* Enable the debug-mode */
1045           debug_mode = true;
1046
1047         }
1048       else if (strcmp(argv[i], "--help") == 0)
1049         {     /* Show help: */
1050           puts("Super Tux " VERSION "\n"
1051                "  Please see the file \"README.txt\" for more details.\n");
1052           printf("Usage: %s [OPTIONS] FILENAME\n\n", argv[0]);
1053           puts("Display Options:\n"
1054                "  --fullscreen        Run in fullscreen mode.\n"
1055                "  --opengl            If opengl support was compiled in, this will enable\n"
1056                "                      the EXPERIMENTAL OpenGL mode.\n"
1057                "  --sdl               Use non-opengl renderer\n"
1058                "\n"
1059                "Sound Options:\n"
1060                "  --disable-sound     If sound support was compiled in,  this will\n"
1061                "                      disable sound for this session of the game.\n"
1062                "  --disable-music     Like above, but this will disable music.\n"
1063                "\n"
1064                "Misc Options:\n"
1065                "  -j, --joystick NUM  Use joystick NUM (default: 0)\n" 
1066                "  --joymap XAXIS:YAXIS:A:B:START\n"
1067                "                      Define how joystick buttons and axis should be mapped\n"
1068                "  --leveleditor       Opens the leveleditor in a file. (Only works when a file is provided.)\n"
1069                "  -d, --datadir DIR   Load Game data from DIR (default: automatic)\n"
1070                "  --debug-mode        Enables the debug-mode, which is useful for developers.\n"
1071                "  --help              Display a help message summarizing command-line\n"
1072                "                      options, license and game controls.\n"
1073                "  --usage             Display a brief message summarizing command-line options.\n"
1074                "  --version           Display the version of SuperTux you're running.\n\n"
1075                );
1076           exit(0);
1077         }
1078       else if (argv[i][0] != '-')
1079         {
1080           level_startup_file = argv[i];
1081         }
1082       else
1083         {
1084           /* Unknown - complain! */
1085
1086           usage(argv[0], 1);
1087         }
1088     }
1089 }
1090
1091
1092 /* Display usage: */
1093
1094 void usage(char * prog, int ret)
1095 {
1096   FILE * fi;
1097
1098
1099   /* Determine which stream to write to: */
1100
1101   if (ret == 0)
1102     fi = stdout;
1103   else
1104     fi = stderr;
1105
1106
1107   /* Display the usage message: */
1108
1109   fprintf(fi, "Usage: %s [--fullscreen] [--opengl] [--disable-sound] [--disable-music] [--debug-mode] | [--usage | --help | --version] [--leveleditor] FILENAME\n",
1110           prog);
1111
1112
1113   /* Quit! */
1114
1115   exit(ret);
1116 }
1117