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 <stdexcept>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29 #include <errno.h>
  30 #include <unistd.h>
  31 #include <cmath>
  32 #include <SDL.h>
  33 #include <SDL_image.h>
  34 #include <physfs.h>
  35
  36 #include "title.hpp"
  37 #include "video/screen.hpp"
  38 #include "video/surface.hpp"
  39 #include "audio/sound_manager.hpp"
  40 #include "gui/menu.hpp"
  41 #include "timer.hpp"
  42 #include "lisp/lisp.hpp"
  43 #include "lisp/parser.hpp"
  44 #include "level.hpp"
  45 #include "level_subset.hpp"
  46 #include "game_session.hpp"
  47 #include "worldmap.hpp"
  48 #include "player_status.hpp"
  49 #include "tile.hpp"
  50 #include "sector.hpp"
  51 #include "object/tilemap.hpp"
  52 #include "object/camera.hpp"
  53 #include "object/player.hpp"
  54 #include "resources.hpp"
  55 #include "gettext.hpp"
  56 #include "misc.hpp"
  57 #include "textscroller.hpp"
  58 #include "file_system.hpp"
  59 #include "control/joystickkeyboardcontroller.hpp"
  60 #include "control/codecontroller.hpp"
  61 #include "main.hpp"
  62 #include "exceptions.hpp"
  63
  64 static Surface* bkg_title;
  65 static Surface* logo;
  66 //static Surface* img_choose_subset;
  67
  68 static bool walking;
  69 static Timer random_timer;
  70
  71 static int frame;
  72
  73 static GameSession* titlesession;
  74 static CodeController* controller;
  75
  76 static std::vector<LevelSubset*> contrib_subsets;
  77 static LevelSubset* current_contrib_subset = 0;
  78 static int current_subset = -1;
  79
  80 /* If the demo was stopped - because game started, level
  81    editor was excuted, etc - call this when you get back
  82    to the title code.
  83  */
  84 void resume_demo()
  85 {
  86   player_status->reset();
  87   titlesession->get_current_sector()->activate("main");
  88   titlesession->set_current();
  89
  90   //frame_rate.update();
  91 }
  92
  93 void update_load_save_game_menu(Menu* menu)
  94 {
  95   printf("update loadsavemenu.\n");
  96   for(int i = 1; i < 6; ++i) {
  97     MenuItem& item = menu->get_item_by_id(i);
  98     item.kind = MN_ACTION;
  99     item.change_text(slotinfo(i));
 100   }
 101 }
 102
 103 void free_contrib_menu()
 104 {
 105   for(std::vector<LevelSubset*>::iterator i = contrib_subsets.begin();
 106       i != contrib_subsets.end(); ++i)
 107     delete *i;
 108
 109   contrib_subsets.clear();
 110   contrib_menu->clear();
 111   current_contrib_subset = 0;
 112   current_subset = -1;
 113 }
 114
 115 void generate_contrib_menu()
 116 {
 117   /** Generating contrib levels list by making use of Level Subset  */
 118   std::vector<std::string> level_subsets;
 119   char** files = PHYSFS_enumerateFiles("levels/");
 120   for(const char* const* filename = files; *filename != 0; ++filename) {
 121     std::string filepath = std::string("levels/") + *filename;
 122     if(PHYSFS_isDirectory(filepath.c_str()))
 123       level_subsets.push_back(filepath);
 124   }
 125   PHYSFS_freeList(files);
 126
 127   free_contrib_menu();
 128
 129   contrib_menu->add_label(_("Contrib Levels"));
 130   contrib_menu->add_hl();
 131
 132   int i = 0;
 133   for (std::vector<std::string>::iterator it = level_subsets.begin();
 134       it != level_subsets.end(); ++it) {
 135     try {
 136       std::auto_ptr<LevelSubset> subset (new LevelSubset());
 137       subset->load(*it);
 138       if(subset->hide_from_contribs) {
 139         continue;
 140       }
 141       contrib_menu->add_submenu(subset->title, contrib_subset_menu, i++);
 142       contrib_subsets.push_back(subset.release());
 143     } catch(std::exception& e) {
 144 #ifdef DEBUG
 145       std::cerr << "Couldn't parse levelset info for '"
 146         << *it << "': " << e.what() << "\n";
 147 #endif
 148     }
 149   }
 150
 151   contrib_menu->add_hl();
 152   contrib_menu->add_back(_("Back"));
 153 }
 154
 155 std::string get_level_name(const std::string& filename)
 156 {
 157   try {
 158     lisp::Parser parser;
 159     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 160
 161     const lisp::Lisp* level = root->get_lisp("supertux-level");
 162     if(!level)
 163       return "";
 164
 165     std::string name;
 166     level->get("name", name);
 167     return name;
 168   } catch(std::exception& e) {
 169     std::cerr << "Problem getting name of '" << filename << "'.\n";
 170     return "";
 171   }
 172 }
 173
 174 void check_levels_contrib_menu()
 175 {
 176   int index = contrib_menu->check();
 177   if (index == -1)
 178     return;
 179
 180   LevelSubset& subset = * (contrib_subsets[index]);
 181
 182   if(subset.has_worldmap) {
 183     WorldMapNS::WorldMap worldmap;
 184     worldmap.set_map_filename(subset.get_worldmap_filename());
 185     sound_manager->stop_music();
 186
 187     // some fading
 188     fadeout(256);
 189     DrawingContext context;
 190     context.draw_text(white_text, "Loading...",
 191         Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 192     context.do_drawing();
 193
 194     // TODO: slots should be available for contrib maps
 195     worldmap.loadgame("save/" + subset.name + "-slot1.stsg");
 196     worldmap.display();  // run the map
 197
 198     Menu::set_current(main_menu);
 199     resume_demo();
 200   } else if (current_subset != index) {
 201     current_subset = index;
 202     LevelSubset& subset = * (contrib_subsets[index]);
 203
 204     current_contrib_subset = &subset;
 205
 206     contrib_subset_menu->clear();
 207
 208     contrib_subset_menu->add_label(subset.title);
 209     contrib_subset_menu->add_hl();
 210
 211     for (int i = 0; i < subset.get_num_levels(); ++i)
 212     {
 213       /** get level's title */
 214       std::string filename = subset.get_level_filename(i);
 215       std::string title = get_level_name(filename);
 216       contrib_subset_menu->add_entry(i, title);
 217     }
 218
 219     contrib_subset_menu->add_hl();
 220     contrib_subset_menu->add_back(_("Back"));
 221
 222     titlesession->get_current_sector()->activate("main");
 223     titlesession->set_current();
 224   }
 225 }
 226
 227 void check_contrib_subset_menu()
 228 {
 229   int index = contrib_subset_menu->check();
 230   if (index != -1) {
 231     if (contrib_subset_menu->get_item_by_id(index).kind == MN_ACTION) {
 232       sound_manager->stop_music();
 233       GameSession session(
 234           current_contrib_subset->get_level_filename(index), ST_GL_PLAY);
 235       session.run();
 236       player_status->reset();
 237       Menu::set_current(main_menu);
 238       resume_demo();
 239     }
 240   }
 241 }
 242
 243 void draw_demo(float elapsed_time)
 244 {
 245   static float last_tux_x_pos = -1;
 246   static float last_tux_y_pos = -1;
 247   Sector* sector  = titlesession->get_current_sector();
 248   Player* tux = sector->player;
 249
 250   sector->play_music(LEVEL_MUSIC);
 251
 252   controller->update();
 253   controller->press(Controller::RIGHT);
 254
 255   if(random_timer.check() ||
 256       (walking && fabsf(last_tux_x_pos - tux->get_pos().x)) < .1) {
 257     walking = false;
 258   } else {
 259       if(!walking && fabsf(tux->get_pos().y - last_tux_y_pos) < .1) {
 260         random_timer.start(float(rand() % 3000 + 3000) / 1000.);
 261         walking = true;
 262       }
 263   }
 264   if(!walking)
 265     controller->press(Controller::JUMP);
 266   last_tux_x_pos = tux->get_pos().x;
 267   last_tux_y_pos = tux->get_pos().y;
 268
 269   // Wrap around at the end of the level back to the beginnig
 270   if(sector->solids->get_width() * 32 - 320 < tux->get_pos().x) {
 271     sector->activate("main");
 272     sector->camera->reset(tux->get_pos());
 273   }
 274
 275   sector->update(elapsed_time);
 276   sector->draw(*titlesession->context);
 277 }
 278
 279 /* --- TITLE SCREEN --- */
 280 void title()
 281 {
 282   walking = true;
 283   //LevelEditor* leveleditor;
 284   controller = new CodeController();
 285
 286   titlesession = new GameSession("levels/misc/menu.stl", ST_GL_DEMO_GAME);
 287
 288   /* Load images: */
 289   bkg_title = new Surface("images/background/arctis.jpg");
 290   logo = new Surface("images/engine/menu/logo.png");
 291   //img_choose_subset = new Surface("images/status/choose-level-subset.png");
 292
 293   titlesession->get_current_sector()->activate("main");
 294   titlesession->set_current();
 295
 296   Player* player = titlesession->get_current_sector()->player;
 297   player->set_controller(controller);
 298
 299   /* --- Main title loop: --- */
 300   frame = 0;
 301
 302   random_timer.start(float(rand() % 2000 + 2000) / 1000.0);
 303
 304   Uint32 lastticks = SDL_GetTicks();
 305
 306   Menu::set_current(main_menu);
 307   DrawingContext& context = *titlesession->context;
 308   bool running = true;
 309   while (running)
 310     {
 311       // Calculate the movement-factor
 312       Uint32 ticks = SDL_GetTicks();
 313       float elapsed_time = float(ticks - lastticks) / 1000.;
 314       game_time += elapsed_time;
 315       lastticks = ticks;
 316       // 40fps is minimum
 317       if(elapsed_time > .04)
 318         elapsed_time = .04;
 319
 320       /* Lower the speed so that Tux doesn't jump too hectically throught
 321          the demo. */
 322       elapsed_time /= 2;
 323
 324       SDL_Event event;
 325       main_controller->update();
 326       while (SDL_PollEvent(&event)) {
 327         if (Menu::current()) {
 328           Menu::current()->event(event);
 329         }
 330         main_controller->process_event(event);
 331         if (event.type == SDL_QUIT)
 332           throw graceful_shutdown();
 333       }
 334
 335       /* Draw the background: */
 336       draw_demo(elapsed_time);
 337
 338       if (Menu::current() == main_menu)
 339         context.draw_surface(logo, Vector(SCREEN_WIDTH/2 - logo->get_width()/2, 30),
 340             LAYER_FOREGROUND1+1);
 341
 342       context.draw_text(white_small_text, " SuperTux " PACKAGE_VERSION "\n",
 343               Vector(0, SCREEN_HEIGHT - 50), LEFT_ALLIGN, LAYER_FOREGROUND1);
 344       context.draw_text(white_small_text,
 345         _(
 346 "Copyright (c) 2006 SuperTux Devel Team\n"
 347 "This game comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to\n"
 348 "redistribute it under certain conditions; see the file COPYING for details.\n"
 349         ),
 350         Vector(0, SCREEN_HEIGHT - 50 + white_small_text->get_height() + 5),
 351         LEFT_ALLIGN, LAYER_FOREGROUND1);
 352
 353       /* Don't draw menu, if quit is true */
 354       Menu* menu = Menu::current();
 355       if(menu)
 356         {
 357           menu->draw(context);
 358           menu->update();
 359
 360           if(menu == main_menu)
 361             {
 362               switch (main_menu->check())
 363                 {
 364                 case MNID_STARTGAME:
 365                   // Start Game, ie. goto the slots menu
 366                   update_load_save_game_menu(load_game_menu);
 367                   break;
 368                 case MNID_LEVELS_CONTRIB:
 369                   // Contrib Menu
 370                   generate_contrib_menu();
 371                   break;
 372 #if 0
 373                 case MNID_LEVELEDITOR: {
 374                   LevelEdtiro* leveleditor = new LevelEditor();
 375                   leveleditor->run();
 376                   delete leveleditor;
 377                   Menu::set_current(main_menu);
 378                   resume_demo();
 379                   break;
 380                 }
 381 #endif
 382                 case MNID_CREDITS:
 383                   sound_manager->stop_music();
 384                   fadeout(500);
 385                   sound_manager->play_music("music/credits.ogg");
 386                   display_text_file("credits.txt");
 387                   sound_manager->stop_music();
 388                   fadeout(500);
 389                   Menu::set_current(main_menu);
 390                   break;
 391                 case MNID_QUITMAINMENU:
 392                   running = false;
 393                   break;
 394                 }
 395             }
 396           else if(menu == options_menu)
 397             {
 398               process_options_menu();
 399             }
 400           else if(menu == load_game_menu)
 401             {
 402               if(event.key.keysym.sym == SDLK_DELETE)
 403                 {
 404                 int slot = menu->get_active_item_id();
 405                 std::stringstream stream;
 406                 stream << slot;
 407                 std::string str = _("Are you sure you want to delete slot") + stream.str() + "?";
 408
 409                 if(confirm_dialog(bkg_title, str.c_str())) {
 410                   str = "save/slot" + stream.str() + ".stsg";
 411                   printf("Removing: %s\n",str.c_str());
 412                   PHYSFS_delete(str.c_str());
 413                 }
 414
 415                 update_load_save_game_menu(load_game_menu);
 416                 Menu::set_current(main_menu);
 417                 resume_demo();
 418                 }
 419               else if (process_load_game_menu())
 420                 {
 421                   resume_demo();
 422                 }
 423             }
 424           else if(menu == contrib_menu)
 425             {
 426               check_levels_contrib_menu();
 427             }
 428           else if (menu == contrib_subset_menu)
 429             {
 430               check_contrib_subset_menu();
 431             }
 432         }
 433
 434       // reopen menu of user closed it (so that the app doesn't close when user
 435       // accidently hit ESC)
 436       if(Menu::current() == 0) {
 437         Menu::set_current(main_menu);
 438       }
 439
 440       context.do_drawing();
 441       sound_manager->update();
 442
 443       //frame_rate.update();
 444
 445       /* Pause: */
 446       frame++;
 447     }
 448   /* Free surfaces: */
 449
 450   free_contrib_menu();
 451   delete titlesession;
 452   delete bkg_title;
 453   delete logo;
 454   //delete img_choose_subset;
 455 }