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