src/title.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux
   4 //  Copyright (C) 2000 Bill Kendrick <bill@newbreedsoftware.com>
   5 //  Copyright (C) 2004 Tobias Glaesser <tobi.web@gmx.de>
   6 //
   7 //  This program is free software; you can redistribute it and/or
   8 //  modify it under the terms of the GNU General Public License
   9 //  as published by the Free Software Foundation; either version 2
  10 //  of the License, or (at your option) any later version.
  11 //
  12 //  This program is distributed in the hope that it will be useful,
  13 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 //  GNU General Public License for more details.
  16 //
  17 //  You should have received a copy of the GNU General Public License
  18 //  along with this program; if not, write to the Free Software
  19 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20 //  02111-1307, USA.
  21 #include <config.h>
  22
  23 #include <iostream>
  24 #include <sstream>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <errno.h>
  29 #include <unistd.h>
  30 #include <cmath>
  31 #include <SDL.h>
  32 #include <SDL_image.h>
  33
  34 #ifndef WIN32
  35 #include <sys/types.h>
  36 #include <ctype.h>
  37 #endif
  38
  39 #include "app/globals.h"
  40 #include "title.h"
  41 #include "video/screen.h"
  42 #include "video/surface.h"
  43 #include "gui/menu.h"
  44 #include "timer.h"
  45 #include "special/frame_rate.h"
  46 #include "app/setup.h"
  47 #include "lisp/lisp.h"
  48 #include "lisp/parser.h"
  49 #include "level.h"
  50 #include "level_subset.h"
  51 #include "gameloop.h"
  52 #include "worldmap.h"
  53 #include "leveleditor.h"
  54 #include "player_status.h"
  55 #include "tile.h"
  56 #include "sector.h"
  57 #include "object/tilemap.h"
  58 #include "object/camera.h"
  59 #include "object/player.h"
  60 #include "resources.h"
  61 #include "app/gettext.h"
  62 #include "misc.h"
  63 #include "textscroller.h"
  64
  65 static Surface* bkg_title;
  66 static Surface* logo;
  67 static Surface* img_choose_subset;
  68
  69 static bool walking;
  70 static Timer2 random_timer;
  71
  72 static int frame;
  73
  74 static GameSession* titlesession;
  75
  76 static std::vector<LevelSubset*> contrib_subsets;
  77 static LevelSubset* current_contrib_subset = 0;
  78
  79 static FrameRate frame_rate(100);
  80
  81 /* If the demo was stopped - because game started, level
  82    editor was excuted, etc - call this when you get back
  83    to the title code.
  84  */
  85 void resume_demo()
  86 {
  87   player_status.reset();
  88   titlesession->get_current_sector()->activate("main");
  89   titlesession->set_current();
  90
  91   frame_rate.update();
  92 }
  93
  94 void update_load_save_game_menu(Menu* pmenu)
  95 {
  96   for(int i = 2; i < 7; ++i)
  97     {
  98       // FIXME: Insert a real savegame struct/class here instead of
  99       // doing string vodoo
 100       std::string tmp = slotinfo(i - 1);
 101       pmenu->item[i].kind = MN_ACTION;
 102       pmenu->item[i].change_text(tmp.c_str());
 103     }
 104 }
 105
 106 void free_contrib_menu()
 107 {
 108   for(std::vector<LevelSubset*>::iterator i = contrib_subsets.begin();
 109       i != contrib_subsets.end(); ++i)
 110     delete *i;
 111
 112   contrib_subsets.clear();
 113   contrib_menu->clear();
 114 }
 115
 116 void generate_contrib_menu()
 117 {
 118   /** Generating contrib levels list by making use of Level Subset  */
 119   std::set<std::string> level_subsets = FileSystem::dsubdirs("/levels", "info");
 120
 121   free_contrib_menu();
 122
 123   contrib_menu->additem(MN_LABEL,_("Contrib Levels"),0,0);
 124   contrib_menu->additem(MN_HL,"",0,0);
 125
 126   int i = 0;
 127   for (std::set<std::string>::iterator it = level_subsets.begin();
 128       it != level_subsets.end(); ++it)
 129     {
 130       LevelSubset* subset = new LevelSubset();
 131       subset->load(*it);
 132       if(subset->hide_from_contribs) {
 133         delete subset;
 134         continue;
 135       }
 136       contrib_menu->additem(MN_GOTO, subset->title, 0, contrib_subset_menu, i);
 137       contrib_subsets.push_back(subset);
 138       ++i;
 139     }
 140
 141   contrib_menu->additem(MN_HL,"",0,0);
 142   contrib_menu->additem(MN_BACK,_("Back"),0,0);
 143
 144   level_subsets.clear();
 145 }
 146
 147 std::string get_level_name(const std::string& filename)
 148 {
 149   try {
 150     lisp::Parser parser;
 151     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 152
 153     const lisp::Lisp* level = root->get_lisp("supertux-level");
 154     if(!level)
 155       return "";
 156
 157     std::string name;
 158     level->get("name", name);
 159     return name;
 160   } catch(std::exception& e) {
 161     std::cerr << "Problem getting name of '" << filename << "'.\n";
 162     return "";
 163   }
 164 }
 165
 166 void check_levels_contrib_menu()
 167 {
 168   static int current_subset = -1;
 169
 170   int index = contrib_menu->check();
 171   if (index == -1)
 172     return;
 173
 174   LevelSubset& subset = * (contrib_subsets[index]);
 175
 176   if(subset.has_worldmap) {
 177     WorldMapNS::WorldMap worldmap;
 178     worldmap.set_map_filename(subset.get_worldmap_filename());
 179
 180     // some fading
 181     fadeout(256);
 182     DrawingContext context;
 183     context.draw_text(white_text, "Loading...",
 184         Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 185     context.do_drawing();
 186
 187     // TODO: slots should be available for contrib maps
 188     worldmap.loadgame(st_save_dir + "/" + subset.name + "-slot1.stsg");
 189
 190     worldmap.display();  // run the map
 191
 192     Menu::set_current(main_menu);
 193     resume_demo();
 194   } else if (current_subset != index) {
 195     current_subset = index;
 196     // FIXME: This shouln't be busy looping
 197     LevelSubset& subset = * (contrib_subsets[index]);
 198
 199     current_contrib_subset = &subset;
 200
 201     contrib_subset_menu->clear();
 202
 203     contrib_subset_menu->additem(MN_LABEL, subset.title, 0,0);
 204     contrib_subset_menu->additem(MN_HL,"",0,0);
 205
 206     for (int i = 0; i < subset.get_num_levels(); ++i)
 207     {
 208       /** get level's title */
 209       std::string filename = subset.get_level_filename(i);
 210       std::string title = get_level_name(filename);
 211       contrib_subset_menu->additem(MN_ACTION, title, 0, 0, i);
 212     }
 213
 214     contrib_subset_menu->additem(MN_HL,"",0,0);
 215     contrib_subset_menu->additem(MN_BACK, _("Back"), 0, 0);
 216
 217     titlesession->get_current_sector()->activate("main");
 218     titlesession->set_current();
 219   }
 220 }
 221
 222 void check_contrib_subset_menu()
 223 {
 224   int index = contrib_subset_menu->check();
 225   if (index != -1)
 226     {
 227       if (contrib_subset_menu->get_item_by_id(index).kind == MN_ACTION)
 228         {
 229           std::cout << "Starting level: " << index << std::endl;
 230
 231           GameSession session(
 232               current_contrib_subset->get_level_filename(index), ST_GL_PLAY);
 233           session.run();
 234           player_status.reset();
 235           Menu::set_current(main_menu);
 236           resume_demo();
 237         }
 238     }
 239 }
 240
 241 void draw_demo(float elapsed_time)
 242 {
 243   Sector* world  = titlesession->get_current_sector();
 244   Player* tux = world->player;
 245
 246   world->play_music(LEVEL_MUSIC);
 247
 248   tux->key_event((SDLKey) keymap.right, true);
 249
 250   if(random_timer.check()) {
 251     random_timer.start(float(rand() % 3000 + 3000) / 1000.);
 252     walking = !walking;
 253   } else {
 254       if(walking)
 255         tux->key_event((SDLKey) keymap.jump, false);
 256       else
 257         tux->key_event((SDLKey) keymap.jump, true);
 258   }
 259
 260   // Wrap around at the end of the level back to the beginnig
 261   if(world->solids->get_width() * 32 - 320 < tux->get_pos().x)
 262     {
 263       world->activate("main");
 264       world->camera->reset(tux->get_pos());
 265     }
 266
 267   tux->can_jump = true;
 268   float last_tux_x_pos = tux->get_pos().x;
 269   world->action(elapsed_time);
 270
 271
 272   // disabled for now, since with the new jump code we easily get deadlocks
 273   // Jump if tux stays in the same position for one loop, ie. if he is
 274   // stuck behind a wall
 275   if (last_tux_x_pos == tux->get_pos().x)
 276     {
 277       walking = false;
 278     }
 279
 280   world->draw(*titlesession->context);
 281 }
 282
 283 /* --- TITLE SCREEN --- */
 284 void title(void)
 285 {
 286   walking = true;
 287   LevelEditor* leveleditor;
 288   MusicRef credits_music;
 289
 290   Ticks::pause_init();
 291
 292   titlesession = new GameSession(get_resource_filename("levels/misc/menu.stl"),
 293       ST_GL_DEMO_GAME);
 294
 295   /* Load images: */
 296   bkg_title = new Surface(datadir + "/images/background/arctis.jpg", false);
 297   logo = new Surface(datadir + "/images/title/logo.png", true);
 298   img_choose_subset = new Surface(datadir + "/images/status/choose-level-subset.png", true);
 299
 300   titlesession->get_current_sector()->activate("main");
 301   titlesession->set_current();
 302
 303   /* --- Main title loop: --- */
 304   frame = 0;
 305
 306   random_timer.start(float(rand() % 2000 + 2000) / 1000.0);
 307
 308   Uint32 lastticks = SDL_GetTicks();
 309
 310   Menu::set_current(main_menu);
 311   DrawingContext& context = *titlesession->context;
 312   while (Menu::current())
 313     {
 314       // Calculate the movement-factor
 315       Uint32 ticks = SDL_GetTicks();
 316       float elapsed_time = float(ticks - lastticks) / 1000.;
 317       global_time += elapsed_time;
 318       lastticks = ticks;
 319       // 40fps is minimum
 320       if(elapsed_time > .04)
 321         elapsed_time = .04;
 322
 323       /* Lower the speed so that Tux doesn't jump too hectically throught
 324          the demo. */
 325       elapsed_time /= 2;
 326
 327       SDL_Event event;
 328       while (SDL_PollEvent(&event))
 329         {
 330           if (Menu::current())
 331             {
 332               Menu::current()->event(event);
 333             }
 334          // FIXME: QUIT signal should be handled more generic, not locally
 335           if (event.type == SDL_QUIT)
 336             Menu::set_current(0);
 337         }
 338
 339       /* Draw the background: */
 340       draw_demo(elapsed_time);
 341
 342
 343       if (Menu::current() == main_menu)
 344         context.draw_surface(logo, Vector(SCREEN_WIDTH/2 - logo->w/2, 30),
 345             LAYER_FOREGROUND1+1);
 346
 347       context.draw_text(white_small_text, " SuperTux " PACKAGE_VERSION "\n",
 348               Vector(0, SCREEN_HEIGHT - 50), LEFT_ALLIGN, LAYER_FOREGROUND1);
 349       context.draw_text(white_small_text,
 350         _(
 351 "Copyright (c) 2003 SuperTux Devel Team\n"
 352 "This game comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to\n"
 353 "redistribute it under certain conditions; see the file COPYING for details.\n"
 354         ),
 355         Vector(0, SCREEN_HEIGHT - 50 + white_small_text->get_height() + 5),
 356         LEFT_ALLIGN, LAYER_FOREGROUND1);
 357
 358       /* Don't draw menu, if quit is true */
 359       Menu* menu = Menu::current();
 360       if(menu)
 361         {
 362           menu->draw(context);
 363           menu->action();
 364
 365           if(menu == main_menu)
 366             {
 367               switch (main_menu->check())
 368                 {
 369                 case MNID_STARTGAME:
 370                   // Start Game, ie. goto the slots menu
 371                   update_load_save_game_menu(load_game_menu);
 372                   break;
 373                 case MNID_LEVELS_CONTRIB:
 374                   // Contrib Menu
 375                   puts("Entering contrib menu");
 376                   generate_contrib_menu();
 377                   break;
 378                 case MNID_LEVELEDITOR:
 379                   leveleditor = new LevelEditor();
 380                   leveleditor->run();
 381                   delete leveleditor;
 382                   Menu::set_current(main_menu);
 383                   resume_demo();
 384                   break;
 385                 case MNID_CREDITS:
 386                   fadeout(500);
 387                   credits_music = SoundManager::get()->load_music(datadir + "/music/credits.ogg");
 388                   SoundManager::get()->play_music(credits_music);
 389                   display_text_file("credits.txt");
 390                   fadeout(500);
 391                   Menu::set_current(main_menu);
 392                   break;
 393                 case MNID_QUITMAINMENU:
 394                   Menu::set_current(0);
 395                   break;
 396                 }
 397             }
 398           else if(menu == options_menu)
 399             {
 400               process_options_menu();
 401             }
 402           else if(menu == load_game_menu)
 403             {
 404               if(event.key.keysym.sym == SDLK_DELETE)
 405                 {
 406                 int slot = menu->get_active_item_id();
 407                 std::stringstream stream;
 408                 stream << slot;
 409                 std::string str = _("Are you sure you want to delete slot") + stream.str() + "?";
 410
 411                 if(confirm_dialog(bkg_title, str.c_str()))
 412                   {
 413                   str = st_save_dir + "/slot" + stream.str() + ".stsg";
 414                   printf("Removing: %s\n",str.c_str());
 415                   remove(str.c_str());
 416                   }
 417
 418                 update_load_save_game_menu(load_game_menu);
 419                 Menu::set_current(main_menu);
 420                 resume_demo();
 421                 }
 422               else if (process_load_game_menu())
 423                 {
 424                   resume_demo();
 425                 }
 426             }
 427           else if(menu == contrib_menu)
 428             {
 429               check_levels_contrib_menu();
 430             }
 431           else if (menu == contrib_subset_menu)
 432             {
 433               check_contrib_subset_menu();
 434             }
 435         }
 436
 437       mouse_cursor->draw(context);
 438
 439       context.do_drawing();
 440
 441       frame_rate.update();
 442
 443       /* Pause: */
 444       frame++;
 445     }
 446   /* Free surfaces: */
 447
 448   free_contrib_menu();
 449   delete titlesession;
 450   delete bkg_title;
 451   delete logo;
 452   delete img_choose_subset;
 453 }
 454