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