Added support for drawing effects again.
[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 "music_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,"Power/Run", 0,0, 0,&keymap.fire);
428   options_keys_menu->additem(MN_HL,"",0,0);
429   options_keys_menu->additem(MN_BACK,"Back",0,0);
430
431   if(use_joystick)
432     {
433     options_joystick_menu->additem(MN_LABEL,"Joystick Setup",0,0);
434     options_joystick_menu->additem(MN_HL,"",0,0);
435     //options_joystick_menu->additem(MN_CONTROLFIELD_JS,"X axis", 0,0, 0,&joystick_keymap.x_axis);
436     //options_joystick_menu->additem(MN_CONTROLFIELD_JS,"Y axis", 0,0, 0,&joystick_keymap.y_axis);
437     options_joystick_menu->additem(MN_CONTROLFIELD_JS,"A button", 0,0, 0,&joystick_keymap.a_button);
438     options_joystick_menu->additem(MN_CONTROLFIELD_JS,"B button", 0,0, 0,&joystick_keymap.b_button);
439     //options_joystick_menu->additem(MN_CONTROLFIELD_JS,"Start", 0,0, 0,&joystick_keymap.start_button);
440     //options_joystick_menu->additem(MN_CONTROLFIELD_JS,"DeadZone", 0,0, 0,&joystick_keymap.dead_zone);
441     options_joystick_menu->additem(MN_HL,"",0,0);
442     options_joystick_menu->additem(MN_BACK,"Back",0,0);
443     }
444   
445   load_game_menu->additem(MN_LABEL,"Start Game",0,0);
446   load_game_menu->additem(MN_HL,"",0,0);
447   load_game_menu->additem(MN_DEACTIVE,"Slot 1",0,0, 1);
448   load_game_menu->additem(MN_DEACTIVE,"Slot 2",0,0, 2);
449   load_game_menu->additem(MN_DEACTIVE,"Slot 3",0,0, 3);
450   load_game_menu->additem(MN_DEACTIVE,"Slot 4",0,0, 4);
451   load_game_menu->additem(MN_DEACTIVE,"Slot 5",0,0, 5);
452   load_game_menu->additem(MN_HL,"",0,0);
453   load_game_menu->additem(MN_BACK,"Back",0,0);
454
455   save_game_menu->additem(MN_LABEL,"Save Game",0,0);
456   save_game_menu->additem(MN_HL,"",0,0);
457   save_game_menu->additem(MN_DEACTIVE,"Slot 1",0,0, 1);
458   save_game_menu->additem(MN_DEACTIVE,"Slot 2",0,0, 2);
459   save_game_menu->additem(MN_DEACTIVE,"Slot 3",0,0, 3);
460   save_game_menu->additem(MN_DEACTIVE,"Slot 4",0,0, 4);
461   save_game_menu->additem(MN_DEACTIVE,"Slot 5",0,0, 5);
462   save_game_menu->additem(MN_HL,"",0,0);
463   save_game_menu->additem(MN_BACK,"Back",0,0);
464
465   game_menu->additem(MN_LABEL,"Pause",0,0);
466   game_menu->additem(MN_HL,"",0,0);
467   game_menu->additem(MN_ACTION,"Continue",0,0,MNID_CONTINUE);
468   game_menu->additem(MN_GOTO,"Options",0,options_menu);
469   game_menu->additem(MN_HL,"",0,0);
470   game_menu->additem(MN_ACTION,"Abort Level",0,0,MNID_ABORTLEVEL);
471
472   worldmap_menu->additem(MN_LABEL,"Pause",0,0);
473   worldmap_menu->additem(MN_HL,"",0,0);
474   worldmap_menu->additem(MN_ACTION,"Continue",0,0,MNID_RETURNWORLDMAP);
475   worldmap_menu->additem(MN_GOTO,"Options",0,options_menu);
476   worldmap_menu->additem(MN_HL,"",0,0);
477   worldmap_menu->additem(MN_ACTION,"Quit Game",0,0,MNID_QUITWORLDMAP);
478
479   highscore_menu->additem(MN_TEXTFIELD,"Enter your name:",0,0);
480 }
481
482 void update_load_save_game_menu(Menu* pmenu)
483 {
484   for(int i = 2; i < 7; ++i)
485     {
486       // FIXME: Insert a real savegame struct/class here instead of
487       // doing string vodoo
488       std::string tmp = slotinfo(i - 1);
489       pmenu->item[i].kind = MN_ACTION;
490       pmenu->item[i].change_text(tmp.c_str());
491     }
492 }
493
494 bool process_load_game_menu()
495 {
496   int slot = load_game_menu->check();
497
498   if(slot != -1 && load_game_menu->get_item_by_id(slot).kind == MN_ACTION)
499     {
500       char slotfile[1024];
501       snprintf(slotfile, 1024, "%s/slot%d.stsg", st_save_dir, slot);
502
503       if (access(slotfile, F_OK) != 0)
504         {
505           draw_intro();
506         }
507
508       // shrink_fade(Point((screen->w/2),(screen->h/2)), 1000);
509       fadeout();
510       WorldMapNS::WorldMap worldmap;
511      
512       // Load the game or at least set the savegame_file variable
513       worldmap.loadgame(slotfile);
514
515       worldmap.display();
516       
517       Menu::set_current(main_menu);
518
519       st_pause_ticks_stop();
520       return true;
521     }
522   else
523     {
524       return false;
525     }
526 }
527
528 /* Handle changes made to global settings in the options menu. */
529 void process_options_menu(void)
530 {
531   switch (options_menu->check())
532     {
533     case MNID_OPENGL:
534 #ifndef NOOPENGL
535       if(use_gl != options_menu->isToggled(MNID_OPENGL))
536         {
537           use_gl = !use_gl;
538           st_video_setup();
539         }
540 #else
541       options_menu->get_item_by_id(MNID_OPENGL).toggled = false;
542 #endif
543       break;
544     case MNID_FULLSCREEN:
545       if(use_fullscreen != options_menu->isToggled(MNID_FULLSCREEN))
546         {
547           use_fullscreen = !use_fullscreen;
548           st_video_setup();
549         }
550       break;
551     case MNID_SOUND:
552       if(use_sound != options_menu->isToggled(MNID_SOUND))
553         use_sound = !use_sound;
554       break;
555     case MNID_MUSIC:
556       if(use_music != options_menu->isToggled(MNID_MUSIC))
557         {
558           use_music = !use_music;
559           music_manager->enable_music(use_music);
560         }
561       break;
562     case MNID_SHOWFPS:
563       if(show_fps != options_menu->isToggled(MNID_SHOWFPS))
564         show_fps = !show_fps;
565       break;
566     }
567 }
568
569 void st_general_setup(void)
570 {
571   /* Seed random number generator: */
572
573   srand(SDL_GetTicks());
574
575   /* Set icon image: */
576
577   seticon();
578
579   /* Unicode needed for input handling: */
580
581   SDL_EnableUNICODE(1);
582
583   /* Load global images: */
584
585   black_text  = new Font(datadir + "/images/status/letters-black.png", TEXT_TEXT, 16,18);
586   gold_text   = new Font(datadir + "/images/status/letters-gold.png", TEXT_TEXT, 16,18);
587   silver_text = new Font(datadir + "/images/status/letters-silver.png", TEXT_TEXT, 16,18);
588   blue_text   = new Font(datadir + "/images/status/letters-blue.png", TEXT_TEXT,
589       16,18, 3);
590   red_text    = new Font(datadir + "/images/status/letters-red.png", TEXT_TEXT, 16,18);
591   green_text  = new Font(datadir + "/images/status/letters-green.png", TEXT_TEXT, 16,18);
592   white_text  = new Font(datadir + "/images/status/letters-white.png", TEXT_TEXT, 16,18);
593   white_small_text = new Font(datadir +
594       "/images/status/letters-white-small.png", TEXT_TEXT, 8,9, 1);
595   white_big_text   = new Font(datadir + "/images/status/letters-white-big.png",
596       TEXT_TEXT, 20,22, 3);
597   yellow_nums = new Font(datadir + "/images/status/numbers.png", TEXT_NUM, 32,32);
598
599   /* Load GUI/menu images: */
600   checkbox = new Surface(datadir + "/images/status/checkbox.png", USE_ALPHA);
601   checkbox_checked = new Surface(datadir + "/images/status/checkbox-checked.png", USE_ALPHA);
602   back = new Surface(datadir + "/images/status/back.png", USE_ALPHA);
603   arrow_left = new Surface(datadir + "/images/icons/left.png", USE_ALPHA);
604   arrow_right = new Surface(datadir + "/images/icons/right.png", USE_ALPHA);
605
606   /* Load the mouse-cursor */
607   mouse_cursor = new MouseCursor( datadir + "/images/status/mousecursor.png",1);
608   MouseCursor::set_current(mouse_cursor);
609   
610 }
611
612 void st_general_free(void)
613 {
614
615   /* Free global images: */
616   delete black_text;
617   delete gold_text;
618   delete silver_text;
619   delete white_text;
620   delete blue_text;
621   delete red_text;
622   delete green_text;
623   delete white_small_text;
624   delete white_big_text;
625   delete yellow_nums;
626
627   /* Free GUI/menu images: */
628   delete checkbox;
629   delete checkbox_checked;
630   delete back;
631   delete arrow_left;
632   delete arrow_right;
633
634   /* Free mouse-cursor */
635   delete mouse_cursor;
636   
637   /* Free menus */
638   delete main_menu;
639   delete game_menu;
640   delete options_menu;
641   delete highscore_menu;
642   delete save_game_menu;
643   delete load_game_menu;
644 }
645
646 void st_video_setup(void)
647 {
648   /* Init SDL Video: */
649   if (SDL_Init(SDL_INIT_VIDEO) < 0)
650     {
651       fprintf(stderr,
652               "\nError: I could not initialize video!\n"
653               "The Simple DirectMedia error that occured was:\n"
654               "%s\n\n", SDL_GetError());
655       exit(1);
656     }
657
658   /* Open display: */
659   if(use_gl)
660     st_video_setup_gl();
661   else
662     st_video_setup_sdl();
663
664   Surface::reload_all();
665
666   /* Set window manager stuff: */
667   SDL_WM_SetCaption("SuperTux " VERSION, "SuperTux");
668 }
669
670 void st_video_setup_sdl(void)
671 {
672   if (use_fullscreen)
673     {
674       screen = SDL_SetVideoMode(SCREEN_W, SCREEN_H, 0, SDL_FULLSCREEN ) ; /* | SDL_HWSURFACE); */
675       if (screen == NULL)
676         {
677           fprintf(stderr,
678                   "\nWarning: I could not set up fullscreen video for "
679                   "640x480 mode.\n"
680                   "The Simple DirectMedia error that occured was:\n"
681                   "%s\n\n", SDL_GetError());
682           use_fullscreen = false;
683         }
684     }
685   else
686     {
687       screen = SDL_SetVideoMode(SCREEN_W, SCREEN_H, 0, SDL_HWSURFACE | SDL_DOUBLEBUF );
688
689       if (screen == NULL)
690         {
691           fprintf(stderr,
692                   "\nError: I could not set up video for 640x480 mode.\n"
693                   "The Simple DirectMedia error that occured was:\n"
694                   "%s\n\n", SDL_GetError());
695           exit(1);
696         }
697     }
698 }
699
700 void st_video_setup_gl(void)
701 {
702 #ifndef NOOPENGL
703
704   SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
705   SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
706   SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
707   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
708   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
709
710   if (use_fullscreen)
711     {
712       screen = SDL_SetVideoMode(SCREEN_W, SCREEN_H, 0, SDL_FULLSCREEN | SDL_OPENGL) ; /* | SDL_HWSURFACE); */
713       if (screen == NULL)
714         {
715           fprintf(stderr,
716                   "\nWarning: I could not set up fullscreen video for "
717                   "640x480 mode.\n"
718                   "The Simple DirectMedia error that occured was:\n"
719                   "%s\n\n", SDL_GetError());
720           use_fullscreen = false;
721         }
722     }
723   else
724     {
725       screen = SDL_SetVideoMode(SCREEN_W, SCREEN_H, 0, SDL_OPENGL);
726
727       if (screen == NULL)
728         {
729           fprintf(stderr,
730                   "\nError: I could not set up video for 640x480 mode.\n"
731                   "The Simple DirectMedia error that occured was:\n"
732                   "%s\n\n", SDL_GetError());
733           exit(1);
734         }
735     }
736
737   /*
738    * Set up OpenGL for 2D rendering.
739    */
740   glDisable(GL_DEPTH_TEST);
741   glDisable(GL_CULL_FACE);
742
743   glViewport(0, 0, screen->w, screen->h);
744   glMatrixMode(GL_PROJECTION);
745   glLoadIdentity();
746   glOrtho(0, screen->w, screen->h, 0, -1.0, 1.0);
747
748   glMatrixMode(GL_MODELVIEW);
749   glLoadIdentity();
750   glTranslatef(0.0f, 0.0f, 0.0f);
751
752 #endif
753
754 }
755
756 void st_joystick_setup(void)
757 {
758
759   /* Init Joystick: */
760
761   use_joystick = true;
762
763   if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
764     {
765       fprintf(stderr, "Warning: I could not initialize joystick!\n"
766               "The Simple DirectMedia error that occured was:\n"
767               "%s\n\n", SDL_GetError());
768
769       use_joystick = false;
770     }
771   else
772     {
773       /* Open joystick: */
774       if (SDL_NumJoysticks() <= 0)
775         {
776           fprintf(stderr, "Warning: No joysticks are available.\n");
777
778           use_joystick = false;
779         }
780       else
781         {
782           js = SDL_JoystickOpen(joystick_num);
783
784           if (js == NULL)
785             {
786               fprintf(stderr, "Warning: Could not open joystick %d.\n"
787                       "The Simple DirectMedia error that occured was:\n"
788                       "%s\n\n", joystick_num, SDL_GetError());
789
790               use_joystick = false;
791             }
792           else
793             {
794               if (SDL_JoystickNumAxes(js) < 2)
795                 {
796                   fprintf(stderr,
797                           "Warning: Joystick does not have enough axes!\n");
798
799                   use_joystick = false;
800                 }
801               else
802                 {
803                   if (SDL_JoystickNumButtons(js) < 2)
804                     {
805                       fprintf(stderr,
806                               "Warning: "
807                               "Joystick does not have enough buttons!\n");
808
809                       use_joystick = false;
810                     }
811                 }
812             }
813         }
814     }
815 }
816
817 void st_audio_setup(void)
818 {
819
820   /* Init SDL Audio silently even if --disable-sound : */
821
822   if (audio_device)
823     {
824       if (SDL_Init(SDL_INIT_AUDIO) < 0)
825         {
826           /* only print out message if sound or music
827              was not disabled at command-line
828            */
829           if (use_sound || use_music)
830             {
831               fprintf(stderr,
832                       "\nWarning: I could not initialize audio!\n"
833                       "The Simple DirectMedia error that occured was:\n"
834                       "%s\n\n", SDL_GetError());
835             }
836           /* keep the programming logic the same :-)
837              because in this case, use_sound & use_music' values are ignored
838              when there's no available audio device
839           */
840           use_sound = false;
841           use_music = false;
842           audio_device = false;
843         }
844     }
845
846
847   /* Open sound silently regarless the value of "use_sound": */
848
849   if (audio_device)
850     {
851       if (open_audio(44100, AUDIO_S16, 2, 2048) < 0)
852         {
853           /* only print out message if sound or music
854              was not disabled at command-line
855            */
856           if (use_sound || use_music)
857             {
858               fprintf(stderr,
859                       "\nWarning: I could not set up audio for 44100 Hz "
860                       "16-bit stereo.\n"
861                       "The Simple DirectMedia error that occured was:\n"
862                       "%s\n\n", SDL_GetError());
863             }
864           use_sound = false;
865           use_music = false;
866           audio_device = false;
867         }
868     }
869
870 }
871
872
873 /* --- SHUTDOWN --- */
874
875 void st_shutdown(void)
876 {
877   close_audio();
878   SDL_Quit();
879   saveconfig();
880 }
881
882 /* --- ABORT! --- */
883
884 void st_abort(const std::string& reason, const std::string& details)
885 {
886   fprintf(stderr, "\nError: %s\n%s\n\n", reason.c_str(), details.c_str());
887   st_shutdown();
888   abort();
889 }
890
891 /* Set Icon (private) */
892
893 void seticon(void)
894 {
895 //  int masklen;
896 //  Uint8 * mask;
897   SDL_Surface * icon;
898
899
900   /* Load icon into a surface: */
901
902   icon = IMG_Load((datadir + "/images/supertux.xpm").c_str());
903   if (icon == NULL)
904     {
905       fprintf(stderr,
906               "\nError: I could not load the icon image: %s%s\n"
907               "The Simple DirectMedia error that occured was:\n"
908               "%s\n\n", datadir.c_str(), "/images/supertux.xpm", SDL_GetError());
909       exit(1);
910     }
911
912
913   /* Create mask: */
914 /*
915   masklen = (((icon -> w) + 7) / 8) * (icon -> h);
916   mask = (Uint8*) malloc(masklen * sizeof(Uint8));
917   memset(mask, 0xFF, masklen);
918 */
919
920   /* Set icon: */
921
922   SDL_WM_SetIcon(icon, NULL);//mask);
923
924
925   /* Free icon surface & mask: */
926
927 //  free(mask);
928   SDL_FreeSurface(icon);
929 }
930
931
932 /* Parse command-line arguments: */
933
934 void parseargs(int argc, char * argv[])
935 {
936   int i;
937
938   loadconfig();
939
940   /* Parse arguments: */
941
942   for (i = 1; i < argc; i++)
943     {
944       if (strcmp(argv[i], "--fullscreen") == 0 ||
945           strcmp(argv[i], "-f") == 0)
946         {
947           /* Use full screen: */
948
949           use_fullscreen = true;
950         }
951       else if (strcmp(argv[i], "--joystick") == 0 || strcmp(argv[i], "-j") == 0)
952         {
953           assert(i+1 < argc);
954           joystick_num = atoi(argv[++i]);
955         }
956       else if (strcmp(argv[i], "--joymap") == 0)
957         {
958           assert(i+1 < argc);
959           if (sscanf(argv[++i],
960                      "%d:%d:%d:%d:%d", 
961                      &joystick_keymap.x_axis, 
962                      &joystick_keymap.y_axis, 
963                      &joystick_keymap.a_button, 
964                      &joystick_keymap.b_button, 
965                      &joystick_keymap.start_button) != 5)
966             {
967               puts("Warning: Invalid or incomplete joymap, should be: 'XAXIS:YAXIS:A:B:START'");
968             }
969           else
970             {
971               std::cout << "Using new joymap:\n"
972                         << "  X-Axis:       " << joystick_keymap.x_axis << "\n"
973                         << "  Y-Axis:       " << joystick_keymap.y_axis << "\n"
974                         << "  A-Button:     " << joystick_keymap.a_button << "\n"
975                         << "  B-Button:     " << joystick_keymap.b_button << "\n"
976                         << "  Start-Button: " << joystick_keymap.start_button << std::endl;
977             }
978         }
979       else if (strcmp(argv[i], "--leveleditor") == 0)
980         {
981           launch_leveleditor_mode = true;
982         }
983       else if (strcmp(argv[i], "--datadir") == 0 
984                || strcmp(argv[i], "-d") == 0 )
985         {
986           assert(i+1 < argc);
987           datadir = argv[++i];
988         }
989       else if (strcmp(argv[i], "--show-fps") == 0)
990         {
991           /* Use full screen: */
992
993           show_fps = true;
994         }
995       else if (strcmp(argv[i], "--opengl") == 0 ||
996                strcmp(argv[i], "-gl") == 0)
997         {
998 #ifndef NOOPENGL
999           /* Use OpengGL: */
1000
1001           use_gl = true;
1002 #endif
1003         }
1004       else if (strcmp(argv[i], "--sdl") == 0)
1005           {
1006             use_gl = false;
1007           }
1008       else if (strcmp(argv[i], "--usage") == 0)
1009         {
1010           /* Show usage: */
1011
1012           usage(argv[0], 0);
1013         }
1014       else if (strcmp(argv[i], "--version") == 0)
1015         {
1016           /* Show version: */
1017           printf("SuperTux " VERSION "\n");
1018           exit(0);
1019         }
1020       else if (strcmp(argv[i], "--disable-sound") == 0)
1021         {
1022           /* Disable the compiled in sound feature */
1023           printf("Sounds disabled \n");
1024           use_sound = false;
1025           audio_device = false;
1026         }
1027       else if (strcmp(argv[i], "--disable-music") == 0)
1028         {
1029           /* Disable the compiled in sound feature */
1030           printf("Music disabled \n");
1031           use_music = false;
1032         }
1033       else if (strcmp(argv[i], "--debug-mode") == 0)
1034         {
1035           /* Enable the debug-mode */
1036           debug_mode = true;
1037
1038         }
1039       else if (strcmp(argv[i], "--help") == 0)
1040         {     /* Show help: */
1041           puts("Super Tux " VERSION "\n"
1042                "  Please see the file \"README.txt\" for more details.\n");
1043           printf("Usage: %s [OPTIONS] FILENAME\n\n", argv[0]);
1044           puts("Display Options:\n"
1045                "  --fullscreen        Run in fullscreen mode.\n"
1046                "  --opengl            If opengl support was compiled in, this will enable\n"
1047                "                      the EXPERIMENTAL OpenGL mode.\n"
1048                "  --sdl               Use non-opengl renderer\n"
1049                "\n"
1050                "Sound Options:\n"
1051                "  --disable-sound     If sound support was compiled in,  this will\n"
1052                "                      disable sound for this session of the game.\n"
1053                "  --disable-music     Like above, but this will disable music.\n"
1054                "\n"
1055                "Misc Options:\n"
1056                "  -j, --joystick NUM  Use joystick NUM (default: 0)\n" 
1057                "  --joymap XAXIS:YAXIS:A:B:START\n"
1058                "                      Define how joystick buttons and axis should be mapped\n"
1059                "  --leveleditor       Opens the leveleditor in a file. (Only works when a file is provided.)\n"
1060                "  -d, --datadir DIR   Load Game data from DIR (default: automatic)\n"
1061                "  --debug-mode        Enables the debug-mode, which is useful for developers.\n"
1062                "  --help              Display a help message summarizing command-line\n"
1063                "                      options, license and game controls.\n"
1064                "  --usage             Display a brief message summarizing command-line options.\n"
1065                "  --version           Display the version of SuperTux you're running.\n\n"
1066                );
1067           exit(0);
1068         }
1069       else if (argv[i][0] != '-')
1070         {
1071           level_startup_file = argv[i];
1072         }
1073       else
1074         {
1075           /* Unknown - complain! */
1076
1077           usage(argv[0], 1);
1078         }
1079     }
1080 }
1081
1082
1083 /* Display usage: */
1084
1085 void usage(char * prog, int ret)
1086 {
1087   FILE * fi;
1088
1089
1090   /* Determine which stream to write to: */
1091
1092   if (ret == 0)
1093     fi = stdout;
1094   else
1095     fi = stderr;
1096
1097
1098   /* Display the usage message: */
1099
1100   fprintf(fi, "Usage: %s [--fullscreen] [--opengl] [--disable-sound] [--disable-music] [--debug-mode] | [--usage | --help | --version] [--leveleditor] FILENAME\n",
1101           prog);
1102
1103
1104   /* Quit! */
1105
1106   exit(ret);
1107 }
1108