src/setup.cpp

   1 /*
   2   setup.c
   3
   4   Super Tux - Setup
   5
   6   by Bill Kendrick
   7   bill@newbreedsoftware.com
   8   http://www.newbreedsoftware.com/supertux/
   9
  10   April 11, 2000 - March 15, 2004
  11 */
  12
  13 #include <assert.h>
  14 #include <stdio.h>
  15 #include <iostream>
  16 #include <stdio.h>
  17 #include <stdlib.h>
  18 #include <string.h>
  19 #include <errno.h>
  20 #include <unistd.h>
  21 #include <SDL.h>
  22 #include <SDL_image.h>
  23 #ifndef NOOPENGL
  24 #include <SDL_opengl.h>
  25 #endif
  26
  27 #include <sys/stat.h>
  28 #include <sys/types.h>
  29 #include <dirent.h>
  30 #ifndef WIN32
  31 #include <libgen.h>
  32 #endif
  33 #include <ctype.h>
  34
  35 #include "defines.h"
  36 #include "globals.h"
  37 #include "setup.h"
  38 #include "screen.h"
  39 #include "texture.h"
  40 #include "menu.h"
  41 #include "gameloop.h"
  42 #include "configfile.h"
  43 #include "scene.h"
  44 #include "worldmap.h"
  45
  46 #ifdef WIN32
  47 #define mkdir(dir, mode)    mkdir(dir)
  48 // on win32 we typically don't want LFS paths
  49 #undef DATA_PREFIX
  50 #define DATA_PREFIX "./data/"
  51 #endif
  52
  53 /* Local function prototypes: */
  54
  55 void seticon(void);
  56 void usage(char * prog, int ret);
  57
  58 /* Does the given file exist and is it accessible? */
  59 int faccessible(const char *filename)
  60 {
  61   struct stat filestat;
  62   if (stat(filename, &filestat) == -1)
  63     {
  64       return false;
  65     }
  66   else
  67     {
  68       if(S_ISREG(filestat.st_mode))
  69         return true;
  70       else
  71         return false;
  72     }
  73 }
  74
  75 /* Can we write to this location? */
  76 int fwriteable(const char *filename)
  77 {
  78   FILE* fi;
  79   fi = fopen(filename, "wa");
  80   if (fi == NULL)
  81     {
  82       return false;
  83     }
  84   return true;
  85 }
  86
  87 /* Makes sure a directory is created in either the SuperTux home directory or the SuperTux base directory.*/
  88 int fcreatedir(const char* relative_dir)
  89 {
  90   char path[1024];
  91   snprintf(path, 1024, "%s/%s/", st_dir, relative_dir);
  92   if(mkdir(path,0755) != 0)
  93     {
  94       snprintf(path, 1024, "%s/%s/", datadir.c_str(), relative_dir);
  95       if(mkdir(path,0755) != 0)
  96         {
  97           return false;
  98         }
  99       else
 100         {
 101           return true;
 102         }
 103     }
 104   else
 105     {
 106       return true;
 107     }
 108 }
 109
 110 FILE * opendata(const char * rel_filename, const char * mode)
 111 {
 112   char * filename = NULL;
 113   FILE * fi;
 114
 115   filename = (char *) malloc(sizeof(char) * (strlen(st_dir) +
 116                                              strlen(rel_filename) + 1));
 117
 118   strcpy(filename, st_dir);
 119   /* Open the high score file: */
 120
 121   strcat(filename, rel_filename);
 122
 123   /* Try opening the file: */
 124   fi = fopen(filename, mode);
 125
 126   if (fi == NULL)
 127     {
 128       fprintf(stderr, "Warning: Unable to open the file \"%s\" ", filename);
 129
 130       if (strcmp(mode, "r") == 0)
 131         fprintf(stderr, "for read!!!\n");
 132       else if (strcmp(mode, "w") == 0)
 133         fprintf(stderr, "for write!!!\n");
 134     }
 135   free( filename );
 136
 137   return(fi);
 138 }
 139
 140 /* Get all names of sub-directories in a certain directory. */
 141 /* Returns the number of sub-directories found. */
 142 /* Note: The user has to free the allocated space. */
 143 string_list_type dsubdirs(const char *rel_path,const  char* expected_file)
 144 {
 145   DIR *dirStructP;
 146   struct dirent *direntp;
 147   string_list_type sdirs;
 148   char filename[1024];
 149   char path[1024];
 150
 151   string_list_init(&sdirs);
 152   sprintf(path,"%s/%s",st_dir,rel_path);
 153   if((dirStructP = opendir(path)) != NULL)
 154     {
 155       while((direntp = readdir(dirStructP)) != NULL)
 156         {
 157           char absolute_filename[1024];
 158           struct stat buf;
 159
 160           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
 161
 162           if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
 163             {
 164               if(expected_file != NULL)
 165                 {
 166                   sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
 167                   if(!faccessible(filename))
 168                     continue;
 169                 }
 170
 171               string_list_add_item(&sdirs,direntp->d_name);
 172             }
 173         }
 174       closedir(dirStructP);
 175     }
 176
 177   sprintf(path,"%s/%s",datadir.c_str(),rel_path);
 178   if((dirStructP = opendir(path)) != NULL)
 179     {
 180       while((direntp = readdir(dirStructP)) != NULL)
 181         {
 182           char absolute_filename[1024];
 183           struct stat buf;
 184
 185           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
 186
 187           if (stat(absolute_filename, &buf) == 0 && S_ISDIR(buf.st_mode))
 188             {
 189               if(expected_file != NULL)
 190                 {
 191                   sprintf(filename,"%s/%s/%s",path,direntp->d_name,expected_file);
 192                   if(!faccessible(filename))
 193                     {
 194                       continue;
 195                     }
 196                   else
 197                     {
 198                       sprintf(filename,"%s/%s/%s/%s",st_dir,rel_path,direntp->d_name,expected_file);
 199                       if(faccessible(filename))
 200                         continue;
 201                     }
 202                 }
 203
 204               string_list_add_item(&sdirs,direntp->d_name);
 205             }
 206         }
 207       closedir(dirStructP);
 208     }
 209
 210   return sdirs;
 211 }
 212
 213 string_list_type dfiles(const char *rel_path, const  char* glob, const  char* exception_str)
 214 {
 215   DIR *dirStructP;
 216   struct dirent *direntp;
 217   string_list_type sdirs;
 218   char path[1024];
 219
 220   string_list_init(&sdirs);
 221   sprintf(path,"%s/%s",st_dir,rel_path);
 222   if((dirStructP = opendir(path)) != NULL)
 223     {
 224       while((direntp = readdir(dirStructP)) != NULL)
 225         {
 226           char absolute_filename[1024];
 227           struct stat buf;
 228
 229           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
 230
 231           if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
 232             {
 233               if(exception_str != NULL)
 234                 {
 235                   if(strstr(direntp->d_name,exception_str) != NULL)
 236                     continue;
 237                 }
 238               if(glob != NULL)
 239                 if(strstr(direntp->d_name,glob) == NULL)
 240                   continue;
 241
 242               string_list_add_item(&sdirs,direntp->d_name);
 243             }
 244         }
 245       closedir(dirStructP);
 246     }
 247
 248   sprintf(path,"%s/%s",datadir.c_str(),rel_path);
 249   if((dirStructP = opendir(path)) != NULL)
 250     {
 251       while((direntp = readdir(dirStructP)) != NULL)
 252         {
 253           char absolute_filename[1024];
 254           struct stat buf;
 255
 256           sprintf(absolute_filename, "%s/%s", path, direntp->d_name);
 257
 258           if (stat(absolute_filename, &buf) == 0 && S_ISREG(buf.st_mode))
 259             {
 260               if(exception_str != NULL)
 261                 {
 262                   if(strstr(direntp->d_name,exception_str) != NULL)
 263                     continue;
 264                 }
 265               if(glob != NULL)
 266                 if(strstr(direntp->d_name,glob) == NULL)
 267                   continue;
 268
 269               string_list_add_item(&sdirs,direntp->d_name);
 270             }
 271         }
 272       closedir(dirStructP);
 273     }
 274
 275   return sdirs;
 276 }
 277
 278 void free_strings(char **strings, int num)
 279 {
 280   int i;
 281   for(i=0; i < num; ++i)
 282     free(strings[i]);
 283 }
 284
 285 /* --- SETUP --- */
 286 /* Set SuperTux configuration and save directories */
 287 void st_directory_setup(void)
 288 {
 289   char *home;
 290   char str[1024];
 291   /* Get home directory (from $HOME variable)... if we can't determine it,
 292      use the current directory ("."): */
 293   if (getenv("HOME") != NULL)
 294     home = getenv("HOME");
 295   else
 296     home = ".";
 297
 298   st_dir = (char *) malloc(sizeof(char) * (strlen(home) +
 299                                            strlen("/.supertux") + 1));
 300   strcpy(st_dir, home);
 301   strcat(st_dir, "/.supertux");
 302
 303   /* Remove .supertux config-file from old SuperTux versions */
 304   if(faccessible(st_dir))
 305     {
 306       remove
 307         (st_dir);
 308     }
 309
 310   st_save_dir = (char *) malloc(sizeof(char) * (strlen(st_dir) + strlen("/save") + 1));
 311
 312   strcpy(st_save_dir,st_dir);
 313   strcat(st_save_dir,"/save");
 314
 315   /* Create them. In the case they exist they won't destroy anything. */
 316   mkdir(st_dir, 0755);
 317   mkdir(st_save_dir, 0755);
 318
 319   sprintf(str, "%s/levels", st_dir);
 320   mkdir(str, 0755);
 321
 322   // User has not that a datadir, so we try some magic
 323   if (datadir.empty())
 324     {
 325 #ifndef WIN32
 326       // Detect datadir
 327       char exe_file[PATH_MAX];
 328       if (readlink("/proc/self/exe", exe_file, PATH_MAX) < 0)
 329         {
 330           puts("Couldn't read /proc/self/exe, using default path: " DATA_PREFIX);
 331           datadir = DATA_PREFIX;
 332         }
 333       else
 334         {
 335           std::string exedir = std::string(dirname(exe_file)) + "/";
 336
 337           datadir = exedir + "../data/"; // SuperTux run from source dir
 338           if (access(datadir.c_str(), F_OK) != 0)
 339             {
 340               datadir = exedir + "../share/supertux/"; // SuperTux run from PATH
 341               if (access(datadir.c_str(), F_OK) != 0)
 342                 { // If all fails, fall back to compiled path
 343                   datadir = DATA_PREFIX;
 344                 }
 345             }
 346         }
 347 #else
 348   datadir = DATA_PREFIX;
 349 #endif
 350     }
 351   printf("Datadir: %s\n", datadir.c_str());
 352 }
 353
 354 /* Create and setup menus. */
 355 void st_menu(void)
 356 {
 357   main_menu      = new Menu();
 358   options_menu   = new Menu();
 359   options_controls_menu   = new Menu();
 360   load_game_menu = new Menu();
 361   save_game_menu = new Menu();
 362   game_menu      = new Menu();
 363   highscore_menu = new Menu();
 364   contrib_menu   = new Menu();
 365   contrib_subset_menu   = new Menu();
 366   worldmap_menu  = new Menu();
 367
 368   main_menu->set_pos(screen->w/2, 335);
 369   main_menu->additem(MN_GOTO, "Start Game",0,load_game_menu);
 370   main_menu->additem(MN_GOTO, "Contrib Levels",0,contrib_menu);
 371   main_menu->additem(MN_GOTO, "Options",0,options_menu);
 372   main_menu->additem(MN_ACTION,"Level editor",0,0);
 373   main_menu->additem(MN_ACTION,"Credits",0,0);
 374   main_menu->additem(MN_ACTION,"Quit",0,0);
 375
 376   options_menu->additem(MN_LABEL,"Options",0,0);
 377   options_menu->additem(MN_HL,"",0,0);
 378 #ifndef NOOPENGL
 379   options_menu->additem(MN_TOGGLE,"OpenGL",use_gl,0);
 380 #else
 381   options_menu->additem(MN_DEACTIVE,"OpenGL (not supported)",use_gl,0);
 382 #endif
 383   options_menu->additem(MN_TOGGLE,"Fullscreen",use_fullscreen,0);
 384   if(audio_device)
 385     {
 386       options_menu->additem(MN_TOGGLE,"Sound     ",use_sound,0);
 387       options_menu->additem(MN_TOGGLE,"Music     ",use_music,0);
 388     }
 389   else
 390     {
 391       options_menu->additem(MN_DEACTIVE,"Sound     ",use_sound,0);
 392       options_menu->additem(MN_DEACTIVE,"Music     ",use_music,0);
 393     }
 394   options_menu->additem(MN_TOGGLE,"Show FPS  ",show_fps,0);
 395   options_menu->additem(MN_GOTO,"Controls  ",0,options_controls_menu);
 396   options_menu->additem(MN_HL,"",0,0);
 397   options_menu->additem(MN_BACK,"Back",0,0);
 398
 399   options_controls_menu->additem(MN_LABEL,"Controls",0,0);
 400   options_controls_menu->additem(MN_HL,"",0,0);
 401   //FIXME:options_controls_menu->additem(MN_CONTROLFIELD,"Move Right", tux.keymap.right,0);
 402   options_controls_menu->additem(MN_HL,"",0,0);
 403   options_controls_menu->additem(MN_BACK,"Back",0,0);
 404
 405   load_game_menu->additem(MN_LABEL,"Start Game",0,0);
 406   load_game_menu->additem(MN_HL,"",0,0);
 407   load_game_menu->additem(MN_DEACTIVE,"Slot 1",0,0);
 408   load_game_menu->additem(MN_DEACTIVE,"Slot 2",0,0);
 409   load_game_menu->additem(MN_DEACTIVE,"Slot 3",0,0);
 410   load_game_menu->additem(MN_DEACTIVE,"Slot 4",0,0);
 411   load_game_menu->additem(MN_DEACTIVE,"Slot 5",0,0);
 412   load_game_menu->additem(MN_HL,"",0,0);
 413   load_game_menu->additem(MN_BACK,"Back",0,0);
 414
 415   save_game_menu->additem(MN_LABEL,"Save Game",0,0);
 416   save_game_menu->additem(MN_HL,"",0,0);
 417   save_game_menu->additem(MN_DEACTIVE,"Slot 1",0,0);
 418   save_game_menu->additem(MN_DEACTIVE,"Slot 2",0,0);
 419   save_game_menu->additem(MN_DEACTIVE,"Slot 3",0,0);
 420   save_game_menu->additem(MN_DEACTIVE,"Slot 4",0,0);
 421   save_game_menu->additem(MN_DEACTIVE,"Slot 5",0,0);
 422   save_game_menu->additem(MN_HL,"",0,0);
 423   save_game_menu->additem(MN_BACK,"Back",0,0);
 424
 425   game_menu->additem(MN_LABEL,"InGame Menu",0,0);
 426   game_menu->additem(MN_HL,"",0,0);
 427   game_menu->additem(MN_ACTION,"Return To Game",0,0);
 428   game_menu->additem(MN_GOTO,"Save Game",0,save_game_menu);
 429   game_menu->additem(MN_GOTO,"Load Game",0,load_game_menu);
 430   game_menu->additem(MN_GOTO,"Options",0,options_menu);
 431   game_menu->additem(MN_HL,"",0,0);
 432   game_menu->additem(MN_ACTION,"Quit Game",0,0);
 433
 434   worldmap_menu->additem(MN_LABEL,"Worldmap Menu",0,0);
 435   worldmap_menu->additem(MN_HL,"",0,0);
 436   worldmap_menu->additem(MN_ACTION,"Return To Game",0,0);
 437   worldmap_menu->additem(MN_GOTO,"Options",0,options_menu);
 438   worldmap_menu->additem(MN_HL,"",0,0);
 439   worldmap_menu->additem(MN_ACTION,"Quit Game",0,0);
 440
 441   highscore_menu->additem(MN_TEXTFIELD,"Enter your name:",0,0);
 442 }
 443
 444 void update_load_save_game_menu(Menu* pmenu)
 445 {
 446   for(int i = 2; i < 7; ++i)
 447     {
 448       // FIXME: Insert a real savegame struct/class here instead of
 449       // doing string vodoo
 450       std::string tmp = slotinfo(i - 1);
 451       pmenu->item[i].kind = MN_ACTION;
 452       pmenu->item[i].change_text(tmp.c_str());
 453     }
 454 }
 455
 456 bool process_load_game_menu()
 457 {
 458   int slot = load_game_menu->check();
 459
 460   if(slot != -1)
 461     {
 462       WorldMapNS::WorldMap worldmap;
 463
 464       char slotfile[1024];
 465       snprintf(slotfile, 1024, "%s/slot%d.stsg", st_save_dir, slot-1);
 466
 467       worldmap.loadgame(slotfile);
 468
 469       worldmap.display();
 470
 471       show_menu = true;
 472       Menu::set_current(main_menu);
 473
 474       st_pause_ticks_stop();
 475       return true;
 476     }
 477   else
 478     {
 479       return false;
 480     }
 481 }
 482
 483 /* Handle changes made to global settings in the options menu. */
 484 void process_options_menu(void)
 485 {
 486   switch (options_menu->check())
 487     {
 488     case 2:
 489 #ifndef NOOPENGL
 490       if(use_gl != options_menu->item[2].toggled)
 491         {
 492           use_gl = !use_gl;
 493           st_video_setup();
 494         }
 495 #endif
 496       break;
 497     case 3:
 498       if(use_fullscreen != options_menu->item[3].toggled)
 499         {
 500           use_fullscreen = !use_fullscreen;
 501           st_video_setup();
 502         }
 503       break;
 504     case 4:
 505       if(use_sound != options_menu->item[4].toggled)
 506         use_sound = !use_sound;
 507       break;
 508     case 5:
 509       if(use_music != options_menu->item[5].toggled)
 510         {
 511           if(use_music)
 512             {
 513               if(playing_music())
 514                 {
 515                   halt_music();
 516                 }
 517               use_music = false;
 518             }
 519           else
 520             {
 521               use_music = true;
 522               if (!playing_music())
 523                 {
 524                   play_current_music();
 525                 }
 526             }
 527         }
 528       break;
 529     case 6:
 530       if(show_fps != options_menu->item[6].toggled)
 531         show_fps = !show_fps;
 532       break;
 533     }
 534 }
 535
 536 void st_general_setup(void)
 537 {
 538   /* Seed random number generator: */
 539
 540   srand(SDL_GetTicks());
 541
 542   /* Set icon image: */
 543
 544   seticon();
 545
 546   /* Unicode needed for input handling: */
 547
 548   SDL_EnableUNICODE(1);
 549
 550   /* Load global images: */
 551
 552   black_text  = new Text(datadir + "/images/status/letters-black.png", TEXT_TEXT, 16,18);
 553   gold_text   = new Text(datadir + "/images/status/letters-gold.png", TEXT_TEXT, 16,18);
 554   blue_text   = new Text(datadir + "/images/status/letters-blue.png", TEXT_TEXT, 16,18);
 555   red_text    = new Text(datadir + "/images/status/letters-red.png", TEXT_TEXT, 16,18);
 556   white_text  = new Text(datadir + "/images/status/letters-white.png", TEXT_TEXT, 16,18);
 557   white_small_text = new Text(datadir + "/images/status/letters-white-small.png", TEXT_TEXT, 8,9);
 558   white_big_text   = new Text(datadir + "/images/status/letters-white-big.png", TEXT_TEXT, 20,23);
 559   yellow_nums = new Text(datadir + "/images/status/numbers.png", TEXT_NUM, 32,32);
 560
 561   /* Load GUI/menu images: */
 562   checkbox = new Surface(datadir + "/images/status/checkbox.png", USE_ALPHA);
 563   checkbox_checked = new Surface(datadir + "/images/status/checkbox-checked.png", USE_ALPHA);
 564   back = new Surface(datadir + "/images/status/back.png", USE_ALPHA);
 565   arrow_left = new Surface(datadir + "/images/icons/left.png", USE_ALPHA);
 566   arrow_right = new Surface(datadir + "/images/icons/right.png", USE_ALPHA);
 567
 568   /* Load the mouse-cursor */
 569   mouse_cursor = new MouseCursor( datadir + "/images/status/mousecursor.png",1);
 570
 571 }
 572
 573 void st_general_free(void)
 574 {
 575
 576   /* Free global images: */
 577
 578   delete black_text;
 579   delete gold_text;
 580   delete white_text;
 581   delete blue_text;
 582   delete red_text;
 583   delete white_small_text;
 584   delete white_big_text;
 585
 586   /* Free GUI/menu images: */
 587   delete checkbox;
 588   delete checkbox_checked;
 589   delete back;
 590   delete arrow_left;
 591   delete arrow_right;
 592
 593   /* Free mouse-cursor */
 594   delete mouse_cursor;
 595
 596   /* Free menus */
 597   delete main_menu;
 598   delete game_menu;
 599   delete options_menu;
 600   delete highscore_menu;
 601   delete save_game_menu;
 602   delete load_game_menu;
 603 }
 604
 605 void st_video_setup(void)
 606 {
 607   if(screen != NULL)
 608     SDL_FreeSurface(screen);
 609
 610   /* Init SDL Video: */
 611
 612   if (SDL_Init(SDL_INIT_VIDEO) < 0)
 613     {
 614       fprintf(stderr,
 615               "\nError: I could not initialize video!\n"
 616               "The Simple DirectMedia error that occured was:\n"
 617               "%s\n\n", SDL_GetError());
 618       exit(1);
 619     }
 620
 621   /* Open display: */
 622   if(use_gl)
 623     st_video_setup_gl();
 624   else
 625     st_video_setup_sdl();
 626
 627   Surface::reload_all();
 628
 629   /* Set window manager stuff: */
 630   SDL_WM_SetCaption("SuperTux " VERSION, "SuperTux");
 631 }
 632
 633 void st_video_setup_sdl(void)
 634 {
 635   SDL_FreeSurface(screen);
 636
 637   if (use_fullscreen)
 638     {
 639       screen = SDL_SetVideoMode(640, 480, 0, SDL_FULLSCREEN ) ; /* | SDL_HWSURFACE); */
 640       if (screen == NULL)
 641         {
 642           fprintf(stderr,
 643                   "\nWarning: I could not set up fullscreen video for "
 644                   "640x480 mode.\n"
 645                   "The Simple DirectMedia error that occured was:\n"
 646                   "%s\n\n", SDL_GetError());
 647           use_fullscreen = false;
 648         }
 649     }
 650   else
 651     {
 652       screen = SDL_SetVideoMode(640, 480, 0, SDL_HWSURFACE | SDL_DOUBLEBUF );
 653
 654       if (screen == NULL)
 655         {
 656           fprintf(stderr,
 657                   "\nError: I could not set up video for 640x480 mode.\n"
 658                   "The Simple DirectMedia error that occured was:\n"
 659                   "%s\n\n", SDL_GetError());
 660           exit(1);
 661         }
 662     }
 663 }
 664
 665 void st_video_setup_gl(void)
 666 {
 667 #ifndef NOOPENGL
 668
 669   SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
 670   SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
 671   SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
 672   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
 673   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 674
 675   if (use_fullscreen)
 676     {
 677       screen = SDL_SetVideoMode(640, 480, 0, SDL_FULLSCREEN | SDL_OPENGL) ; /* | SDL_HWSURFACE); */
 678       if (screen == NULL)
 679         {
 680           fprintf(stderr,
 681                   "\nWarning: I could not set up fullscreen video for "
 682                   "640x480 mode.\n"
 683                   "The Simple DirectMedia error that occured was:\n"
 684                   "%s\n\n", SDL_GetError());
 685           use_fullscreen = false;
 686         }
 687     }
 688   else
 689     {
 690       screen = SDL_SetVideoMode(640, 480, 0, SDL_OPENGL);
 691
 692       if (screen == NULL)
 693         {
 694           fprintf(stderr,
 695                   "\nError: I could not set up video for 640x480 mode.\n"
 696                   "The Simple DirectMedia error that occured was:\n"
 697                   "%s\n\n", SDL_GetError());
 698           exit(1);
 699         }
 700     }
 701
 702   /*
 703    * Set up OpenGL for 2D rendering.
 704    */
 705   glDisable(GL_DEPTH_TEST);
 706   glDisable(GL_CULL_FACE);
 707
 708   glViewport(0, 0, screen->w, screen->h);
 709   glMatrixMode(GL_PROJECTION);
 710   glLoadIdentity();
 711   glOrtho(0, screen->w, screen->h, 0, -1.0, 1.0);
 712
 713   glMatrixMode(GL_MODELVIEW);
 714   glLoadIdentity();
 715   glTranslatef(0.0f, 0.0f, 0.0f);
 716
 717 #endif
 718
 719 }
 720
 721 void st_joystick_setup(void)
 722 {
 723
 724   /* Init Joystick: */
 725
 726   use_joystick = true;
 727
 728   if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
 729     {
 730       fprintf(stderr, "Warning: I could not initialize joystick!\n"
 731               "The Simple DirectMedia error that occured was:\n"
 732               "%s\n\n", SDL_GetError());
 733
 734       use_joystick = false;
 735     }
 736   else
 737     {
 738       /* Open joystick: */
 739       if (SDL_NumJoysticks() <= 0)
 740         {
 741           fprintf(stderr, "Warning: No joysticks are available.\n");
 742
 743           use_joystick = false;
 744         }
 745       else
 746         {
 747           js = SDL_JoystickOpen(joystick_num);
 748
 749           if (js == NULL)
 750             {
 751               fprintf(stderr, "Warning: Could not open joystick %d.\n"
 752                       "The Simple DirectMedia error that occured was:\n"
 753                       "%s\n\n", joystick_num, SDL_GetError());
 754
 755               use_joystick = false;
 756             }
 757           else
 758             {
 759               /* Check for proper joystick configuration: */
 760
 761               if (SDL_JoystickNumAxes(js) < 2)
 762                 {
 763                   fprintf(stderr,
 764                           "Warning: Joystick does not have enough axes!\n");
 765
 766                   use_joystick = false;
 767                 }
 768               else
 769                 {
 770                   if (SDL_JoystickNumButtons(js) < 2)
 771                     {
 772                       fprintf(stderr,
 773                               "Warning: "
 774                               "Joystick does not have enough buttons!\n");
 775
 776                       use_joystick = false;
 777                     }
 778                 }
 779             }
 780         }
 781     }
 782 }
 783
 784 void st_audio_setup(void)
 785 {
 786
 787   /* Init SDL Audio silently even if --disable-sound : */
 788
 789   if (audio_device)
 790     {
 791       if (SDL_Init(SDL_INIT_AUDIO) < 0)
 792         {
 793           /* only print out message if sound or music
 794              was not disabled at command-line
 795            */
 796           if (use_sound || use_music)
 797             {
 798               fprintf(stderr,
 799                       "\nWarning: I could not initialize audio!\n"
 800                       "The Simple DirectMedia error that occured was:\n"
 801                       "%s\n\n", SDL_GetError());
 802             }
 803           /* keep the programming logic the same :-)
 804              because in this case, use_sound & use_music' values are ignored
 805              when there's no available audio device
 806           */
 807           use_sound = false;
 808           use_music = false;
 809           audio_device = false;
 810         }
 811     }
 812
 813
 814   /* Open sound silently regarless the value of "use_sound": */
 815
 816   if (audio_device)
 817     {
 818       if (open_audio(44100, AUDIO_S16, 2, 2048) < 0)
 819         {
 820           /* only print out message if sound or music
 821              was not disabled at command-line
 822            */
 823           if (use_sound || use_music)
 824             {
 825               fprintf(stderr,
 826                       "\nWarning: I could not set up audio for 44100 Hz "
 827                       "16-bit stereo.\n"
 828                       "The Simple DirectMedia error that occured was:\n"
 829                       "%s\n\n", SDL_GetError());
 830             }
 831           use_sound = false;
 832           use_music = false;
 833           audio_device = false;
 834         }
 835     }
 836
 837 }
 838
 839
 840 /* --- SHUTDOWN --- */
 841
 842 void st_shutdown(void)
 843 {
 844   close_audio();
 845   SDL_Quit();
 846   saveconfig();
 847 }
 848
 849 /* --- ABORT! --- */
 850
 851 void st_abort(const std::string& reason, const std::string& details)
 852 {
 853   fprintf(stderr, "\nError: %s\n%s\n\n", reason.c_str(), details.c_str());
 854   st_shutdown();
 855   abort();
 856 }
 857
 858
 859 /* Set Icon (private) */
 860
 861 void seticon(void)
 862 {
 863   int masklen;
 864   Uint8 * mask;
 865   SDL_Surface * icon;
 866
 867
 868   /* Load icon into a surface: */
 869
 870   icon = IMG_Load((datadir + "/images/icon.png").c_str());
 871   if (icon == NULL)
 872     {
 873       fprintf(stderr,
 874               "\nError: I could not load the icon image: %s%s\n"
 875               "The Simple DirectMedia error that occured was:\n"
 876               "%s\n\n", datadir.c_str(), "/images/icon.png", SDL_GetError());
 877       exit(1);
 878     }
 879
 880
 881   /* Create mask: */
 882
 883   masklen = (((icon -> w) + 7) / 8) * (icon -> h);
 884   mask = (Uint8*) malloc(masklen * sizeof(Uint8));
 885   memset(mask, 0xFF, masklen);
 886
 887
 888   /* Set icon: */
 889
 890   SDL_WM_SetIcon(icon, mask);
 891
 892
 893   /* Free icon surface & mask: */
 894
 895   free(mask);
 896   SDL_FreeSurface(icon);
 897 }
 898
 899
 900 /* Parse command-line arguments: */
 901
 902 void parseargs(int argc, char * argv[])
 903 {
 904   int i;
 905
 906   loadconfig();
 907
 908   /* Parse arguments: */
 909
 910   for (i = 1; i < argc; i++)
 911     {
 912       if (strcmp(argv[i], "--fullscreen") == 0 ||
 913           strcmp(argv[i], "-f") == 0)
 914         {
 915           /* Use full screen: */
 916
 917           use_fullscreen = true;
 918         }
 919       else if (strcmp(argv[i], "--joystick") == 0 || strcmp(argv[i], "-j") == 0)
 920         {
 921           assert(i+1 < argc);
 922           joystick_num = atoi(argv[++i]);
 923         }
 924       else if (strcmp(argv[i], "--worldmap") == 0)
 925         {
 926           launch_worldmap_mode = true;
 927         }
 928       else if (strcmp(argv[i], "--datadir") == 0
 929                || strcmp(argv[i], "-d") == 0 )
 930         {
 931           assert(i+1 < argc);
 932           datadir = argv[++i];
 933         }
 934       else if (strcmp(argv[i], "--show-fps") == 0)
 935         {
 936           /* Use full screen: */
 937
 938           show_fps = true;
 939         }
 940       else if (strcmp(argv[i], "--opengl") == 0 ||
 941                strcmp(argv[i], "-gl") == 0)
 942         {
 943 #ifndef NOOPENGL
 944           /* Use OpengGL: */
 945
 946           use_gl = true;
 947 #endif
 948         }
 949       else if (strcmp(argv[i], "--sdl") == 0)
 950           {
 951             use_gl = false;
 952           }
 953       else if (strcmp(argv[i], "--usage") == 0)
 954         {
 955           /* Show usage: */
 956
 957           usage(argv[0], 0);
 958         }
 959       else if (strcmp(argv[i], "--version") == 0)
 960         {
 961           /* Show version: */
 962           printf("SuperTux " VERSION "\n");
 963           exit(0);
 964         }
 965       else if (strcmp(argv[i], "--disable-sound") == 0)
 966         {
 967           /* Disable the compiled in sound feature */
 968           printf("Sounds disabled \n");
 969           use_sound = false;
 970         }
 971       else if (strcmp(argv[i], "--disable-music") == 0)
 972         {
 973           /* Disable the compiled in sound feature */
 974           printf("Music disabled \n");
 975           use_music = false;
 976         }
 977       else if (strcmp(argv[i], "--debug-mode") == 0)
 978         {
 979           /* Enable the debug-mode */
 980           debug_mode = true;
 981
 982         }
 983       else if (strcmp(argv[i], "--help") == 0)
 984         {     /* Show help: */
 985           puts("Super Tux " VERSION "\n"
 986                "  Please see the file \"README.txt\" for more details.\n");
 987           printf("Usage: %s [OPTIONS] FILENAME\n\n", argv[0]);
 988           puts("Display Options:\n"
 989                "  --fullscreen        Run in fullscreen mode.\n"
 990                "  --opengl            If opengl support was compiled in, this will enable\n"
 991                "                      the EXPERIMENTAL OpenGL mode.\n"
 992                "  --sdl               Use non-opengl renderer\n"
 993                "\n"
 994                "Sound Options:\n"
 995                "  --disable-sound     If sound support was compiled in,  this will\n"
 996                "                      disable sound for this session of the game.\n"
 997                "  --disable-music     Like above, but this will disable music.\n"
 998                "\n"
 999                "Misc Options:\n"
1000                "  -j, --joystick NUM  Use joystick NUM (default: 0)\n"
1001                "  --worldmap          Start in worldmap-mode (EXPERIMENTAL)\n"
1002                "  -d, --datadir DIR   Load Game data from DIR (default: automatic)\n"
1003                "  --debug-mode        Enables the debug-mode, which is useful for developers.\n"
1004                "  --help              Display a help message summarizing command-line\n"
1005                "                      options, license and game controls.\n"
1006                "  --usage             Display a brief message summarizing command-line options.\n"
1007                "  --version           Display the version of SuperTux you're running.\n\n"
1008                );
1009           exit(0);
1010         }
1011       else if (argv[i][0] != '-')
1012         {
1013           level_startup_file = argv[i];
1014         }
1015       else
1016         {
1017           /* Unknown - complain! */
1018
1019           usage(argv[0], 1);
1020         }
1021     }
1022 }
1023
1024
1025 /* Display usage: */
1026
1027 void usage(char * prog, int ret)
1028 {
1029   FILE * fi;
1030
1031
1032   /* Determine which stream to write to: */
1033
1034   if (ret == 0)
1035     fi = stdout;
1036   else
1037     fi = stderr;
1038
1039
1040   /* Display the usage message: */
1041
1042   fprintf(fi, "Usage: %s [--fullscreen] [--opengl] [--disable-sound] [--disable-music] [--debug-mode] | [--usage | --help | --version] [--worldmap] FILENAME\n",
1043           prog);
1044
1045
1046   /* Quit! */
1047
1048   exit(ret);
1049 }
1050