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 #include "msg.hpp"
  64 #include "console.hpp"
  65
  66 static Surface* bkg_title;
  67 static Surface* logo;
  68 //static Surface* img_choose_subset;
  69
  70 static int frame;
  71
  72 static GameSession* titlesession;
  73 static CodeController* controller;
  74
  75 static std::vector<LevelSubset*> contrib_subsets;
  76 static LevelSubset* current_contrib_subset = 0;
  77 static int current_subset = -1;
  78
  79 static Console* console;
  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* menu)
  95 {
  96   msg_debug("update loadsavemenu");
  97   for(int i = 1; i < 6; ++i) {
  98     MenuItem& item = menu->get_item_by_id(i);
  99     item.kind = MN_ACTION;
 100     item.change_text(slotinfo(i));
 101   }
 102 }
 103
 104 void free_contrib_menu()
 105 {
 106   for(std::vector<LevelSubset*>::iterator i = contrib_subsets.begin();
 107       i != contrib_subsets.end(); ++i)
 108     delete *i;
 109
 110   contrib_subsets.clear();
 111   contrib_menu->clear();
 112   current_contrib_subset = 0;
 113   current_subset = -1;
 114 }
 115
 116 void generate_contrib_menu()
 117 {
 118   /** Generating contrib levels list by making use of Level Subset  */
 119   std::vector<std::string> level_subsets;
 120   char** files = PHYSFS_enumerateFiles("levels/");
 121   for(const char* const* filename = files; *filename != 0; ++filename) {
 122     std::string filepath = std::string("levels/") + *filename;
 123     if(PHYSFS_isDirectory(filepath.c_str()))
 124       level_subsets.push_back(filepath);
 125   }
 126   PHYSFS_freeList(files);
 127
 128   free_contrib_menu();
 129
 130   contrib_menu->add_label(_("Contrib Levels"));
 131   contrib_menu->add_hl();
 132
 133   int i = 0;
 134   for (std::vector<std::string>::iterator it = level_subsets.begin();
 135       it != level_subsets.end(); ++it) {
 136     try {
 137       std::auto_ptr<LevelSubset> subset (new LevelSubset());
 138       subset->load(*it);
 139       if(subset->hide_from_contribs) {
 140         continue;
 141       }
 142       contrib_menu->add_submenu(subset->title, contrib_subset_menu, i++);
 143       contrib_subsets.push_back(subset.release());
 144     } catch(std::exception& e) {
 145 #ifdef DEBUG
 146       msg_warning("Couldn't parse levelset info for '"
 147         << *it << "': " << e.what() << "");
 148 #endif
 149     }
 150   }
 151
 152   contrib_menu->add_hl();
 153   contrib_menu->add_back(_("Back"));
 154 }
 155
 156 std::string get_level_name(const std::string& filename)
 157 {
 158   try {
 159     lisp::Parser parser;
 160     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 161
 162     const lisp::Lisp* level = root->get_lisp("supertux-level");
 163     if(!level)
 164       return "";
 165
 166     std::string name;
 167     level->get("name", name);
 168     return name;
 169   } catch(std::exception& e) {
 170     msg_warning("Problem getting name of '" << filename << "'.");
 171     return "";
 172   }
 173 }
 174
 175 void check_levels_contrib_menu()
 176 {
 177   int index = contrib_menu->check();
 178   if (index == -1)
 179     return;
 180
 181   LevelSubset& subset = * (contrib_subsets[index]);
 182
 183   if(subset.has_worldmap) {
 184     WorldMapNS::WorldMap worldmap;
 185     worldmap.set_map_filename(subset.get_worldmap_filename());
 186     sound_manager->stop_music();
 187
 188     // some fading
 189     fadeout(256);
 190     DrawingContext context;
 191     context.draw_text(white_text, "Loading...",
 192         Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 193     context.do_drawing();
 194
 195     // TODO: slots should be available for contrib maps
 196     worldmap.loadgame("save/" + subset.name + "-slot1.stsg");
 197     worldmap.display();  // run the map
 198
 199     Menu::set_current(main_menu);
 200     resume_demo();
 201   } else if (current_subset != index) {
 202     current_subset = index;
 203     LevelSubset& subset = * (contrib_subsets[index]);
 204
 205     current_contrib_subset = &subset;
 206
 207     contrib_subset_menu->clear();
 208
 209     contrib_subset_menu->add_label(subset.title);
 210     contrib_subset_menu->add_hl();
 211
 212     for (int i = 0; i < subset.get_num_levels(); ++i)
 213     {
 214       /** get level's title */
 215       std::string filename = subset.get_level_filename(i);
 216       std::string title = get_level_name(filename);
 217       contrib_subset_menu->add_entry(i, title);
 218     }
 219
 220     contrib_subset_menu->add_hl();
 221     contrib_subset_menu->add_back(_("Back"));
 222
 223     titlesession->get_current_sector()->activate("main");
 224     titlesession->set_current();
 225   }
 226 }
 227
 228 void check_contrib_subset_menu()
 229 {
 230   int index = contrib_subset_menu->check();
 231   if (index != -1) {
 232     if (contrib_subset_menu->get_item_by_id(index).kind == MN_ACTION) {
 233       sound_manager->stop_music();
 234       GameSession session(
 235           current_contrib_subset->get_level_filename(index), ST_GL_PLAY);
 236       session.run();
 237       player_status->reset();
 238       Menu::set_current(main_menu);
 239       resume_demo();
 240     }
 241   }
 242 }
 243
 244 void draw_demo(float elapsed_time)
 245 {
 246   static Timer randomWaitTimer;
 247   static Timer jumpPushTimer;
 248   static Timer jumpRecoverTimer;
 249   static float last_tux_x_pos = -1;
 250   static float last_tux_y_pos = -1;
 251
 252   Sector* sector  = titlesession->get_current_sector();
 253   Player* tux = sector->player;
 254
 255   sector->play_music(LEVEL_MUSIC);
 256
 257   controller->update();
 258   controller->press(Controller::RIGHT);
 259
 260   // Determine how far we moved since last frame
 261   float dx = fabsf(last_tux_x_pos - tux->get_pos().x);
 262   float dy = fabsf(last_tux_y_pos - tux->get_pos().y);
 263
 264   // Calculate space to check for obstacles
 265   Rect lookahead = Rect(tux->get_bbox());
 266   lookahead.move(Vector(lookahead.get_width()*2,0));
 267
 268   // Check if we should press the jump button
 269   bool randomJump = !randomWaitTimer.started();
 270   bool mayJump = !jumpRecoverTimer.started();
 271   bool notMoving = (dx+dy < 0.1);
 272   bool pathBlocked = !sector->is_free_space(lookahead);
 273   if ((notMoving || pathBlocked || randomJump) && mayJump) {
 274     float jumpDuration = float(rand() % 200 + 500) / 1000.0;
 275     jumpPushTimer.start(jumpDuration);
 276     jumpRecoverTimer.start(jumpDuration+0.1);
 277     randomWaitTimer.start(float(rand() % 3000 + 3000) / 1000.0);
 278   }
 279
 280   // Keep jump button pressed
 281   if (jumpPushTimer.started()) controller->press(Controller::JUMP);
 282
 283   // Remember last position, so we can determine if we moved
 284   last_tux_x_pos = tux->get_pos().x;
 285   last_tux_y_pos = tux->get_pos().y;
 286
 287   // Wrap around at the end of the level back to the beginnig
 288   if(sector->solids->get_width() * 32 - 320 < tux->get_pos().x) {
 289     sector->activate("main");
 290     sector->camera->reset(tux->get_pos());
 291   }
 292
 293   sector->update(elapsed_time);
 294   sector->draw(*titlesession->context);
 295 }
 296
 297 /* --- TITLE SCREEN --- */
 298 void title()
 299 {
 300   //LevelEditor* leveleditor;
 301   controller = new CodeController();
 302
 303   titlesession = new GameSession("levels/misc/menu.stl", ST_GL_DEMO_GAME);
 304
 305   /* Load images: */
 306   bkg_title = new Surface("images/background/arctis.jpg");
 307   logo = new Surface("images/engine/menu/logo.png");
 308   //img_choose_subset = new Surface("images/status/choose-level-subset.png");
 309
 310   titlesession->get_current_sector()->activate("main");
 311   titlesession->set_current();
 312
 313   Player* player = titlesession->get_current_sector()->player;
 314   player->set_controller(controller);
 315
 316   /* --- Main title loop: --- */
 317   frame = 0;
 318
 319   Uint32 lastticks = SDL_GetTicks();
 320
 321   Menu::set_current(main_menu);
 322   DrawingContext& context = *titlesession->context;
 323
 324   console = new Console(&context);
 325
 326   bool running = true;
 327   while (running)
 328     {
 329       // Calculate the movement-factor
 330       Uint32 ticks = SDL_GetTicks();
 331       float elapsed_time = float(ticks - lastticks) / 1000.;
 332       game_time += elapsed_time;
 333       lastticks = ticks;
 334       // 40fps is minimum
 335       if(elapsed_time > .04)
 336         elapsed_time = .04;
 337
 338       /* Lower the speed so that Tux doesn't jump too hectically throught
 339          the demo. */
 340       elapsed_time /= 2;
 341
 342       SDL_Event event;
 343       main_controller->update();
 344       while (SDL_PollEvent(&event)) {
 345         if (Menu::current()) {
 346           Menu::current()->event(event);
 347         }
 348         main_controller->process_event(event);
 349         if (event.type == SDL_QUIT)
 350           throw graceful_shutdown();
 351       }
 352
 353       /* Draw the background: */
 354       draw_demo(elapsed_time);
 355
 356       if (Menu::current() == main_menu)
 357         context.draw_surface(logo, Vector(SCREEN_WIDTH/2 - logo->get_width()/2, 30),
 358             LAYER_FOREGROUND1+1);
 359
 360       context.draw_text(white_small_text, " SuperTux " PACKAGE_VERSION "\n",
 361               Vector(0, SCREEN_HEIGHT - 50), LEFT_ALLIGN, LAYER_FOREGROUND1);
 362       context.draw_text(white_small_text,
 363         _(
 364 "Copyright (c) 2006 SuperTux Devel Team\n"
 365 "This game comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to\n"
 366 "redistribute it under certain conditions; see the file COPYING for details.\n"
 367         ),
 368         Vector(0, SCREEN_HEIGHT - 50 + white_small_text->get_height() + 5),
 369         LEFT_ALLIGN, LAYER_FOREGROUND1);
 370
 371       /* Don't draw menu, if quit is true */
 372       Menu* menu = Menu::current();
 373       if(menu)
 374         {
 375           menu->draw(context);
 376           menu->update();
 377
 378           if(menu == main_menu)
 379             {
 380               switch (main_menu->check())
 381                 {
 382                 case MNID_STARTGAME:
 383                   // Start Game, ie. goto the slots menu
 384                   update_load_save_game_menu(load_game_menu);
 385                   break;
 386                 case MNID_LEVELS_CONTRIB:
 387                   // Contrib Menu
 388                   generate_contrib_menu();
 389                   break;
 390                 case MNID_CREDITS:
 391                   sound_manager->stop_music();
 392                   fadeout(500);
 393                   sound_manager->play_music("music/credits.ogg");
 394                   display_text_file("credits.txt");
 395                   sound_manager->stop_music();
 396                   fadeout(500);
 397                   Menu::set_current(main_menu);
 398                   break;
 399                 case MNID_QUITMAINMENU:
 400                   running = false;
 401                   break;
 402                 }
 403             }
 404           else if(menu == options_menu)
 405             {
 406               process_options_menu();
 407             }
 408           else if(menu == load_game_menu)
 409             {
 410               if(event.key.keysym.sym == SDLK_DELETE)
 411                 {
 412                 int slot = menu->get_active_item_id();
 413                 std::stringstream stream;
 414                 stream << slot;
 415                 std::string str = _("Are you sure you want to delete slot") + stream.str() + "?";
 416
 417                 if(confirm_dialog(bkg_title, str.c_str())) {
 418                   str = "save/slot" + stream.str() + ".stsg";
 419                   msg_debug("Removing: " << str);
 420                   PHYSFS_delete(str.c_str());
 421                 }
 422
 423                 update_load_save_game_menu(load_game_menu);
 424                 Menu::set_current(main_menu);
 425                 resume_demo();
 426                 }
 427               else if (process_load_game_menu())
 428                 {
 429                   resume_demo();
 430                 }
 431             }
 432           else if(menu == contrib_menu)
 433             {
 434               check_levels_contrib_menu();
 435             }
 436           else if (menu == contrib_subset_menu)
 437             {
 438               check_contrib_subset_menu();
 439             }
 440         }
 441
 442       // reopen menu of user closed it (so that the app doesn't close when user
 443       // accidently hit ESC)
 444       if(Menu::current() == 0) {
 445         Menu::set_current(main_menu);
 446       }
 447
 448       console->draw();
 449
 450       context.do_drawing();
 451       sound_manager->update();
 452
 453       //frame_rate.update();
 454
 455       /* Pause: */
 456       frame++;
 457     }
 458   /* Free surfaces: */
 459
 460   free_contrib_menu();
 461   delete titlesession;
 462   delete bkg_title;
 463   delete logo;
 464   delete console;
 465   //delete img_choose_subset;
 466 }