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_keys_menu     = new Menu();
 369   options_joystick_menu = new Menu();
 370   load_game_menu = new Menu();
 371   save_game_menu = new Menu();
 372   game_menu      = new Menu();
 373   highscore_menu = new Menu();
 374   contrib_menu   = new Menu();
 375   contrib_subset_menu   = new Menu();
 376   worldmap_menu  = new Menu();
 377
 378   main_menu->set_pos(screen->w/2, 335);
 379   main_menu->additem(MN_GOTO, "Start Game",0,load_game_menu, MNID_STARTGAME);
 380   main_menu->additem(MN_GOTO, "Contrib Levels",0,contrib_menu, MNID_CONTRIB);
 381   main_menu->additem(MN_GOTO, "Options",0,options_menu);
 382   main_menu->additem(MN_ACTION,"Level editor",0,0, MNID_LEVELEDITOR);
 383   main_menu->additem(MN_ACTION,"Credits",0,0, MNID_CREDITS);
 384   main_menu->additem(MN_ACTION,"Quit",0,0, MNID_QUITMAINMENU);
 385
 386   options_menu->additem(MN_LABEL,"Options",0,0);
 387   options_menu->additem(MN_HL,"",0,0);
 388 #ifndef NOOPENGL
 389   options_menu->additem(MN_TOGGLE,"OpenGL",use_gl,0, MNID_OPENGL);
 390 #else
 391   options_menu->additem(MN_DEACTIVE,"OpenGL (not supported)",use_gl,MNID_OPENGL);
 392 #endif
 393   options_menu->additem(MN_TOGGLE,"Fullscreen",use_fullscreen,0, MNID_FULLSCREEN);
 394   if(audio_device)
 395     {
 396       options_menu->additem(MN_TOGGLE,"Sound     ",use_sound,0, MNID_SOUND);
 397       options_menu->additem(MN_TOGGLE,"Music     ",use_music,0, MNID_MUSIC);
 398     }
 399   else
 400     {
 401       options_menu->additem(MN_DEACTIVE,"Sound     ",use_sound,0, MNID_SOUND);
 402       options_menu->additem(MN_DEACTIVE,"Music     ",use_music,0, MNID_MUSIC);
 403     }
 404   options_menu->additem(MN_TOGGLE,"Show FPS  ",show_fps,0, MNID_SHOWFPS);
 405   options_menu->additem(MN_GOTO,"Key Setup",0,options_keys_menu);
 406   if(use_joystick)
 407     options_menu->additem(MN_GOTO,"Joystick Setup",0,options_joystick_menu);
 408   options_menu->additem(MN_HL,"",0,0);
 409   options_menu->additem(MN_BACK,"Back",0,0);
 410
 411   options_keys_menu->additem(MN_LABEL,"Key Setup",0,0);
 412   options_keys_menu->additem(MN_HL,"",0,0);
 413   options_keys_menu->additem(MN_CONTROLFIELD,"Left move", 0,0, 0,&keymap.left);
 414   options_keys_menu->additem(MN_CONTROLFIELD,"Right move", 0,0, 0,&keymap.right);
 415   options_keys_menu->additem(MN_CONTROLFIELD,"Jump", 0,0, 0,&keymap.jump);
 416   options_keys_menu->additem(MN_CONTROLFIELD,"Duck", 0,0, 0,&keymap.duck);
 417   options_keys_menu->additem(MN_CONTROLFIELD,"Power", 0,0, 0,&keymap.fire);
 418   options_keys_menu->additem(MN_HL,"",0,0);
 419   options_keys_menu->additem(MN_BACK,"Back",0,0);
 420
 421   if(use_joystick)
 422     {
 423     options_joystick_menu->additem(MN_LABEL,"Joystick Setup",0,0);
 424     options_joystick_menu->additem(MN_HL,"",0,0);
 425     options_joystick_menu->additem(MN_CONTROLFIELD,"X axis", 0,0, 0,&joystick_keymap.x_axis);
 426     options_joystick_menu->additem(MN_CONTROLFIELD,"Y axis", 0,0, 0,&joystick_keymap.y_axis);
 427     options_joystick_menu->additem(MN_CONTROLFIELD,"A button", 0,0, 0,&joystick_keymap.a_button);
 428     options_joystick_menu->additem(MN_CONTROLFIELD,"B button", 0,0, 0,&joystick_keymap.b_button);
 429     options_joystick_menu->additem(MN_CONTROLFIELD,"Start", 0,0, 0,&joystick_keymap.start_button);
 430     options_joystick_menu->additem(MN_CONTROLFIELD,"DeadZone", 0,0, 0,&joystick_keymap.dead_zone);
 431     options_joystick_menu->additem(MN_HL,"",0,0);
 432     options_joystick_menu->additem(MN_BACK,"Back",0,0);
 433     }
 434
 435   load_game_menu->additem(MN_LABEL,"Start Game",0,0);
 436   load_game_menu->additem(MN_HL,"",0,0);
 437   load_game_menu->additem(MN_DEACTIVE,"Slot 1",0,0);
 438   load_game_menu->additem(MN_DEACTIVE,"Slot 2",0,0);
 439   load_game_menu->additem(MN_DEACTIVE,"Slot 3",0,0);
 440   load_game_menu->additem(MN_DEACTIVE,"Slot 4",0,0);
 441   load_game_menu->additem(MN_DEACTIVE,"Slot 5",0,0);
 442   load_game_menu->additem(MN_HL,"",0,0);
 443   load_game_menu->additem(MN_BACK,"Back",0,0);
 444
 445   save_game_menu->additem(MN_LABEL,"Save Game",0,0);
 446   save_game_menu->additem(MN_HL,"",0,0);
 447   save_game_menu->additem(MN_DEACTIVE,"Slot 1",0,0);
 448   save_game_menu->additem(MN_DEACTIVE,"Slot 2",0,0);
 449   save_game_menu->additem(MN_DEACTIVE,"Slot 3",0,0);
 450   save_game_menu->additem(MN_DEACTIVE,"Slot 4",0,0);
 451   save_game_menu->additem(MN_DEACTIVE,"Slot 5",0,0);
 452   save_game_menu->additem(MN_HL,"",0,0);
 453   save_game_menu->additem(MN_BACK,"Back",0,0);
 454
 455   game_menu->additem(MN_LABEL,"Pause",0,0);
 456   game_menu->additem(MN_HL,"",0,0);
 457   game_menu->additem(MN_ACTION,"Continue",0,0,MNID_CONTINUE);
 458   game_menu->additem(MN_GOTO,"Options",0,options_menu);
 459   game_menu->additem(MN_HL,"",0,0);
 460   game_menu->additem(MN_ACTION,"Abort Level",0,0,MNID_ABORTLEVEL);
 461
 462   worldmap_menu->additem(MN_LABEL,"Pause",0,0);
 463   worldmap_menu->additem(MN_HL,"",0,0);
 464   worldmap_menu->additem(MN_ACTION,"Continue",0,0,MNID_RETURNWORLDMAP);
 465   worldmap_menu->additem(MN_ACTION,"Save",0,0,MNID_SAVEGAME);
 466   worldmap_menu->additem(MN_GOTO,"Options",0,options_menu);
 467   worldmap_menu->additem(MN_HL,"",0,0);
 468   worldmap_menu->additem(MN_ACTION,"Quit Game",0,0,MNID_QUITWORLDMAP);
 469
 470   highscore_menu->additem(MN_TEXTFIELD,"Enter your name:",0,0);
 471 }
 472
 473 void update_load_save_game_menu(Menu* pmenu)
 474 {
 475   for(int i = 2; i < 7; ++i)
 476     {
 477       // FIXME: Insert a real savegame struct/class here instead of
 478       // doing string vodoo
 479       std::string tmp = slotinfo(i - 1);
 480       pmenu->item[i].kind = MN_ACTION;
 481       pmenu->item[i].change_text(tmp.c_str());
 482     }
 483 }
 484
 485 bool process_load_game_menu()
 486 {
 487   int slot = load_game_menu->check();
 488
 489   if(slot != -1 && load_game_menu->get_item(slot).kind == MN_ACTION)
 490     {
 491       WorldMapNS::WorldMap worldmap;
 492
 493       char slotfile[1024];
 494       snprintf(slotfile, 1024, "%s/slot%d.stsg", st_save_dir, slot-1);
 495
 496       // Load the game or at least set the savegame_file variable
 497       worldmap.loadgame(slotfile);
 498
 499       worldmap.display();
 500
 501       Menu::set_current(main_menu);
 502
 503       st_pause_ticks_stop();
 504       return true;
 505     }
 506   else
 507     {
 508       return false;
 509     }
 510 }
 511
 512 /* Handle changes made to global settings in the options menu. */
 513 void process_options_menu(void)
 514 {
 515   switch (options_menu->check())
 516     {
 517     case MNID_OPENGL:
 518 #ifndef NOOPENGL
 519       if(use_gl != options_menu->item[MNID_OPENGL].toggled)
 520         {
 521           use_gl = !use_gl;
 522           st_video_setup();
 523         }
 524 #else
 525       options_menu->item[MNID_OPENGL].toggled = false;
 526 #endif
 527       break;
 528     case MNID_FULLSCREEN:
 529       if(use_fullscreen != options_menu->item[MNID_FULLSCREEN].toggled)
 530         {
 531           use_fullscreen = !use_fullscreen;
 532           st_video_setup();
 533         }
 534       break;
 535     case MNID_SOUND:
 536       if(use_sound != options_menu->item[MNID_SOUND].toggled)
 537         use_sound = !use_sound;
 538       break;
 539     case MNID_MUSIC:
 540       if(use_music != options_menu->item[MNID_MUSIC].toggled)
 541         {
 542           enable_music(options_menu->item[MNID_MUSIC].toggled);
 543         }
 544       break;
 545     case MNID_SHOWFPS:
 546       if(show_fps != options_menu->item[MNID_SHOWFPS].toggled)
 547         show_fps = !show_fps;
 548       break;
 549     }
 550 }
 551
 552 void st_general_setup(void)
 553 {
 554   /* Seed random number generator: */
 555
 556   srand(SDL_GetTicks());
 557
 558   /* Set icon image: */
 559
 560   seticon();
 561
 562   /* Unicode needed for input handling: */
 563
 564   SDL_EnableUNICODE(1);
 565
 566   /* Load global images: */
 567
 568   black_text  = new Text(datadir + "/images/status/letters-black.png", TEXT_TEXT, 16,18);
 569   gold_text   = new Text(datadir + "/images/status/letters-gold.png", TEXT_TEXT, 16,18);
 570   blue_text   = new Text(datadir + "/images/status/letters-blue.png", TEXT_TEXT, 16,18);
 571   red_text    = new Text(datadir + "/images/status/letters-red.png", TEXT_TEXT, 16,18);
 572   white_text  = new Text(datadir + "/images/status/letters-white.png", TEXT_TEXT, 16,18);
 573   white_small_text = new Text(datadir + "/images/status/letters-white-small.png", TEXT_TEXT, 8,9);
 574   white_big_text   = new Text(datadir + "/images/status/letters-white-big.png", TEXT_TEXT, 20,23);
 575   yellow_nums = new Text(datadir + "/images/status/numbers.png", TEXT_NUM, 32,32);
 576
 577   /* Load GUI/menu images: */
 578   checkbox = new Surface(datadir + "/images/status/checkbox.png", USE_ALPHA);
 579   checkbox_checked = new Surface(datadir + "/images/status/checkbox-checked.png", USE_ALPHA);
 580   back = new Surface(datadir + "/images/status/back.png", USE_ALPHA);
 581   arrow_left = new Surface(datadir + "/images/icons/left.png", USE_ALPHA);
 582   arrow_right = new Surface(datadir + "/images/icons/right.png", USE_ALPHA);
 583
 584   /* Load the mouse-cursor */
 585   mouse_cursor = new MouseCursor( datadir + "/images/status/mousecursor.png",1);
 586
 587 }
 588
 589 void st_general_free(void)
 590 {
 591
 592   /* Free global images: */
 593
 594   delete black_text;
 595   delete gold_text;
 596   delete white_text;
 597   delete blue_text;
 598   delete red_text;
 599   delete white_small_text;
 600   delete white_big_text;
 601
 602   /* Free GUI/menu images: */
 603   delete checkbox;
 604   delete checkbox_checked;
 605   delete back;
 606   delete arrow_left;
 607   delete arrow_right;
 608
 609   /* Free mouse-cursor */
 610   delete mouse_cursor;
 611
 612   /* Free menus */
 613   delete main_menu;
 614   delete game_menu;
 615   delete options_menu;
 616   delete highscore_menu;
 617   delete save_game_menu;
 618   delete load_game_menu;
 619 }
 620
 621 void st_video_setup(void)
 622 {
 623   if(screen != NULL)
 624     SDL_FreeSurface(screen);
 625
 626   /* Init SDL Video: */
 627
 628   if (SDL_Init(SDL_INIT_VIDEO) < 0)
 629     {
 630       fprintf(stderr,
 631               "\nError: I could not initialize video!\n"
 632               "The Simple DirectMedia error that occured was:\n"
 633               "%s\n\n", SDL_GetError());
 634       exit(1);
 635     }
 636
 637   /* Open display: */
 638   if(use_gl)
 639     st_video_setup_gl();
 640   else
 641     st_video_setup_sdl();
 642
 643   Surface::reload_all();
 644
 645   /* Set window manager stuff: */
 646   SDL_WM_SetCaption("SuperTux " VERSION, "SuperTux");
 647 }
 648
 649 void st_video_setup_sdl(void)
 650 {
 651   SDL_FreeSurface(screen);
 652
 653   if (use_fullscreen)
 654     {
 655       screen = SDL_SetVideoMode(640, 480, 0, SDL_FULLSCREEN ) ; /* | SDL_HWSURFACE); */
 656       if (screen == NULL)
 657         {
 658           fprintf(stderr,
 659                   "\nWarning: I could not set up fullscreen video for "
 660                   "640x480 mode.\n"
 661                   "The Simple DirectMedia error that occured was:\n"
 662                   "%s\n\n", SDL_GetError());
 663           use_fullscreen = false;
 664         }
 665     }
 666   else
 667     {
 668       screen = SDL_SetVideoMode(640, 480, 0, SDL_HWSURFACE | SDL_DOUBLEBUF );
 669
 670       if (screen == NULL)
 671         {
 672           fprintf(stderr,
 673                   "\nError: I could not set up video for 640x480 mode.\n"
 674                   "The Simple DirectMedia error that occured was:\n"
 675                   "%s\n\n", SDL_GetError());
 676           exit(1);
 677         }
 678     }
 679 }
 680
 681 void st_video_setup_gl(void)
 682 {
 683 #ifndef NOOPENGL
 684
 685   SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5);
 686   SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5);
 687   SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5);
 688   SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
 689   SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 690
 691   if (use_fullscreen)
 692     {
 693       screen = SDL_SetVideoMode(640, 480, 0, SDL_FULLSCREEN | SDL_OPENGL) ; /* | SDL_HWSURFACE); */
 694       if (screen == NULL)
 695         {
 696           fprintf(stderr,
 697                   "\nWarning: I could not set up fullscreen video for "
 698                   "640x480 mode.\n"
 699                   "The Simple DirectMedia error that occured was:\n"
 700                   "%s\n\n", SDL_GetError());
 701           use_fullscreen = false;
 702         }
 703     }
 704   else
 705     {
 706       screen = SDL_SetVideoMode(640, 480, 0, SDL_OPENGL);
 707
 708       if (screen == NULL)
 709         {
 710           fprintf(stderr,
 711                   "\nError: I could not set up video for 640x480 mode.\n"
 712                   "The Simple DirectMedia error that occured was:\n"
 713                   "%s\n\n", SDL_GetError());
 714           exit(1);
 715         }
 716     }
 717
 718   /*
 719    * Set up OpenGL for 2D rendering.
 720    */
 721   glDisable(GL_DEPTH_TEST);
 722   glDisable(GL_CULL_FACE);
 723
 724   glViewport(0, 0, screen->w, screen->h);
 725   glMatrixMode(GL_PROJECTION);
 726   glLoadIdentity();
 727   glOrtho(0, screen->w, screen->h, 0, -1.0, 1.0);
 728
 729   glMatrixMode(GL_MODELVIEW);
 730   glLoadIdentity();
 731   glTranslatef(0.0f, 0.0f, 0.0f);
 732
 733 #endif
 734
 735 }
 736
 737 void st_joystick_setup(void)
 738 {
 739
 740   /* Init Joystick: */
 741
 742   use_joystick = true;
 743
 744   if (SDL_Init(SDL_INIT_JOYSTICK) < 0)
 745     {
 746       fprintf(stderr, "Warning: I could not initialize joystick!\n"
 747               "The Simple DirectMedia error that occured was:\n"
 748               "%s\n\n", SDL_GetError());
 749
 750       use_joystick = false;
 751     }
 752   else
 753     {
 754       /* Open joystick: */
 755       if (SDL_NumJoysticks() <= 0)
 756         {
 757           fprintf(stderr, "Warning: No joysticks are available.\n");
 758
 759           use_joystick = false;
 760         }
 761       else
 762         {
 763           js = SDL_JoystickOpen(joystick_num);
 764
 765           if (js == NULL)
 766             {
 767               fprintf(stderr, "Warning: Could not open joystick %d.\n"
 768                       "The Simple DirectMedia error that occured was:\n"
 769                       "%s\n\n", joystick_num, SDL_GetError());
 770
 771               use_joystick = false;
 772             }
 773           else
 774             {
 775               if (SDL_JoystickNumAxes(js) < 2)
 776                 {
 777                   fprintf(stderr,
 778                           "Warning: Joystick does not have enough axes!\n");
 779
 780                   use_joystick = false;
 781                 }
 782               else
 783                 {
 784                   if (SDL_JoystickNumButtons(js) < 2)
 785                     {
 786                       fprintf(stderr,
 787                               "Warning: "
 788                               "Joystick does not have enough buttons!\n");
 789
 790                       use_joystick = false;
 791                     }
 792                 }
 793             }
 794         }
 795     }
 796 }
 797
 798 void st_audio_setup(void)
 799 {
 800
 801   /* Init SDL Audio silently even if --disable-sound : */
 802
 803   if (audio_device)
 804     {
 805       if (SDL_Init(SDL_INIT_AUDIO) < 0)
 806         {
 807           /* only print out message if sound or music
 808              was not disabled at command-line
 809            */
 810           if (use_sound || use_music)
 811             {
 812               fprintf(stderr,
 813                       "\nWarning: I could not initialize audio!\n"
 814                       "The Simple DirectMedia error that occured was:\n"
 815                       "%s\n\n", SDL_GetError());
 816             }
 817           /* keep the programming logic the same :-)
 818              because in this case, use_sound & use_music' values are ignored
 819              when there's no available audio device
 820           */
 821           use_sound = false;
 822           use_music = false;
 823           audio_device = false;
 824         }
 825     }
 826
 827
 828   /* Open sound silently regarless the value of "use_sound": */
 829
 830   if (audio_device)
 831     {
 832       if (open_audio(44100, AUDIO_S16, 2, 2048) < 0)
 833         {
 834           /* only print out message if sound or music
 835              was not disabled at command-line
 836            */
 837           if (use_sound || use_music)
 838             {
 839               fprintf(stderr,
 840                       "\nWarning: I could not set up audio for 44100 Hz "
 841                       "16-bit stereo.\n"
 842                       "The Simple DirectMedia error that occured was:\n"
 843                       "%s\n\n", SDL_GetError());
 844             }
 845           use_sound = false;
 846           use_music = false;
 847           audio_device = false;
 848         }
 849     }
 850
 851 }
 852
 853
 854 /* --- SHUTDOWN --- */
 855
 856 void st_shutdown(void)
 857 {
 858   close_audio();
 859   SDL_Quit();
 860   saveconfig();
 861 }
 862
 863 /* --- ABORT! --- */
 864
 865 void st_abort(const std::string& reason, const std::string& details)
 866 {
 867   fprintf(stderr, "\nError: %s\n%s\n\n", reason.c_str(), details.c_str());
 868   st_shutdown();
 869   abort();
 870 }
 871
 872
 873 /* Set Icon (private) */
 874
 875 void seticon(void)
 876 {
 877 //  int masklen;
 878 //  Uint8 * mask;
 879   SDL_Surface * icon;
 880
 881
 882   /* Load icon into a surface: */
 883
 884   icon = IMG_Load((datadir + "/images/icon.xpm").c_str());
 885   if (icon == NULL)
 886     {
 887       fprintf(stderr,
 888               "\nError: I could not load the icon image: %s%s\n"
 889               "The Simple DirectMedia error that occured was:\n"
 890               "%s\n\n", datadir.c_str(), "/images/icon.xpm", SDL_GetError());
 891       exit(1);
 892     }
 893
 894
 895   /* Create mask: */
 896 /*
 897   masklen = (((icon -> w) + 7) / 8) * (icon -> h);
 898   mask = (Uint8*) malloc(masklen * sizeof(Uint8));
 899   memset(mask, 0xFF, masklen);
 900 */
 901
 902   /* Set icon: */
 903
 904   SDL_WM_SetIcon(icon, NULL);//mask);
 905
 906
 907   /* Free icon surface & mask: */
 908
 909 //  free(mask);
 910   SDL_FreeSurface(icon);
 911 }
 912
 913
 914 /* Parse command-line arguments: */
 915
 916 void parseargs(int argc, char * argv[])
 917 {
 918   int i;
 919
 920   loadconfig();
 921
 922   /* Parse arguments: */
 923
 924   for (i = 1; i < argc; i++)
 925     {
 926       if (strcmp(argv[i], "--fullscreen") == 0 ||
 927           strcmp(argv[i], "-f") == 0)
 928         {
 929           /* Use full screen: */
 930
 931           use_fullscreen = true;
 932         }
 933       else if (strcmp(argv[i], "--joystick") == 0 || strcmp(argv[i], "-j") == 0)
 934         {
 935           assert(i+1 < argc);
 936           joystick_num = atoi(argv[++i]);
 937         }
 938       else if (strcmp(argv[i], "--joymap") == 0)
 939         {
 940           assert(i+1 < argc);
 941           if (sscanf(argv[++i],
 942                      "%d:%d:%d:%d:%d",
 943                      &joystick_keymap.x_axis,
 944                      &joystick_keymap.y_axis,
 945                      &joystick_keymap.a_button,
 946                      &joystick_keymap.b_button,
 947                      &joystick_keymap.start_button) != 5)
 948             {
 949               puts("Warning: Invalid or incomplete joymap, should be: 'XAXIS:YAXIS:A:B:START'");
 950             }
 951           else
 952             {
 953               std::cout << "Using new joymap:\n"
 954                         << "  X-Axis:       " << joystick_keymap.x_axis << "\n"
 955                         << "  Y-Axis:       " << joystick_keymap.y_axis << "\n"
 956                         << "  A-Button:     " << joystick_keymap.a_button << "\n"
 957                         << "  B-Button:     " << joystick_keymap.b_button << "\n"
 958                         << "  Start-Button: " << joystick_keymap.start_button << std::endl;
 959             }
 960         }
 961       else if (strcmp(argv[i], "--worldmap") == 0)
 962         {
 963           launch_worldmap_mode = true;
 964         }
 965       else if (strcmp(argv[i], "--datadir") == 0
 966                || strcmp(argv[i], "-d") == 0 )
 967         {
 968           assert(i+1 < argc);
 969           datadir = argv[++i];
 970         }
 971       else if (strcmp(argv[i], "--show-fps") == 0)
 972         {
 973           /* Use full screen: */
 974
 975           show_fps = true;
 976         }
 977       else if (strcmp(argv[i], "--opengl") == 0 ||
 978                strcmp(argv[i], "-gl") == 0)
 979         {
 980 #ifndef NOOPENGL
 981           /* Use OpengGL: */
 982
 983           use_gl = true;
 984 #endif
 985         }
 986       else if (strcmp(argv[i], "--sdl") == 0)
 987           {
 988             use_gl = false;
 989           }
 990       else if (strcmp(argv[i], "--usage") == 0)
 991         {
 992           /* Show usage: */
 993
 994           usage(argv[0], 0);
 995         }
 996       else if (strcmp(argv[i], "--version") == 0)
 997         {
 998           /* Show version: */
 999           printf("SuperTux " VERSION "\n");
1000           exit(0);
1001         }
1002       else if (strcmp(argv[i], "--disable-sound") == 0)
1003         {
1004           /* Disable the compiled in sound feature */
1005           printf("Sounds disabled \n");
1006           use_sound = false;
1007           audio_device = false;
1008         }
1009       else if (strcmp(argv[i], "--disable-music") == 0)
1010         {
1011           /* Disable the compiled in sound feature */
1012           printf("Music disabled \n");
1013           use_music = false;
1014         }
1015       else if (strcmp(argv[i], "--debug-mode") == 0)
1016         {
1017           /* Enable the debug-mode */
1018           debug_mode = true;
1019
1020         }
1021       else if (strcmp(argv[i], "--help") == 0)
1022         {     /* Show help: */
1023           puts("Super Tux " VERSION "\n"
1024                "  Please see the file \"README.txt\" for more details.\n");
1025           printf("Usage: %s [OPTIONS] FILENAME\n\n", argv[0]);
1026           puts("Display Options:\n"
1027                "  --fullscreen        Run in fullscreen mode.\n"
1028                "  --opengl            If opengl support was compiled in, this will enable\n"
1029                "                      the EXPERIMENTAL OpenGL mode.\n"
1030                "  --sdl               Use non-opengl renderer\n"
1031                "\n"
1032                "Sound Options:\n"
1033                "  --disable-sound     If sound support was compiled in,  this will\n"
1034                "                      disable sound for this session of the game.\n"
1035                "  --disable-music     Like above, but this will disable music.\n"
1036                "\n"
1037                "Misc Options:\n"
1038                "  -j, --joystick NUM  Use joystick NUM (default: 0)\n"
1039                "  --joymap XAXIS:YAXIS:A:B:START\n"
1040                "                      Define how joystick buttons and axis should be mapped\n"
1041                "  --worldmap          Start in worldmap-mode (EXPERIMENTAL)\n"
1042                "  -d, --datadir DIR   Load Game data from DIR (default: automatic)\n"
1043                "  --debug-mode        Enables the debug-mode, which is useful for developers.\n"
1044                "  --help              Display a help message summarizing command-line\n"
1045                "                      options, license and game controls.\n"
1046                "  --usage             Display a brief message summarizing command-line options.\n"
1047                "  --version           Display the version of SuperTux you're running.\n\n"
1048                );
1049           exit(0);
1050         }
1051       else if (argv[i][0] != '-')
1052         {
1053           level_startup_file = argv[i];
1054         }
1055       else
1056         {
1057           /* Unknown - complain! */
1058
1059           usage(argv[0], 1);
1060         }
1061     }
1062 }
1063
1064
1065 /* Display usage: */
1066
1067 void usage(char * prog, int ret)
1068 {
1069   FILE * fi;
1070
1071
1072   /* Determine which stream to write to: */
1073
1074   if (ret == 0)
1075     fi = stdout;
1076   else
1077     fi = stderr;
1078
1079
1080   /* Display the usage message: */
1081
1082   fprintf(fi, "Usage: %s [--fullscreen] [--opengl] [--disable-sound] [--disable-music] [--debug-mode] | [--usage | --help | --version] [--worldmap] FILENAME\n",
1083           prog);
1084
1085
1086   /* Quit! */
1087
1088   exit(ret);
1089 }
1090