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
  65 static Surface* bkg_title;
  66 static Surface* logo;
  67 //static Surface* img_choose_subset;
  68
  69 static int frame;
  70
  71 static GameSession* titlesession;
  72 static CodeController* controller;
  73
  74 static std::vector<LevelSubset*> contrib_subsets;
  75 static LevelSubset* current_contrib_subset = 0;
  76 static int current_subset = -1;
  77
  78 /* If the demo was stopped - because game started, level
  79    editor was excuted, etc - call this when you get back
  80    to the title code.
  81  */
  82 void resume_demo()
  83 {
  84   player_status->reset();
  85   titlesession->get_current_sector()->activate("main");
  86   titlesession->set_current();
  87
  88   //frame_rate.update();
  89 }
  90
  91 void update_load_save_game_menu(Menu* menu)
  92 {
  93   msg_debug("update loadsavemenu");
  94   for(int i = 1; i < 6; ++i) {
  95     MenuItem& item = menu->get_item_by_id(i);
  96     item.kind = MN_ACTION;
  97     item.change_text(slotinfo(i));
  98   }
  99 }
 100
 101 void free_contrib_menu()
 102 {
 103   for(std::vector<LevelSubset*>::iterator i = contrib_subsets.begin();
 104       i != contrib_subsets.end(); ++i)
 105     delete *i;
 106
 107   contrib_subsets.clear();
 108   contrib_menu->clear();
 109   current_contrib_subset = 0;
 110   current_subset = -1;
 111 }
 112
 113 void generate_contrib_menu()
 114 {
 115   /** Generating contrib levels list by making use of Level Subset  */
 116   std::vector<std::string> level_subsets;
 117   char** files = PHYSFS_enumerateFiles("levels/");
 118   for(const char* const* filename = files; *filename != 0; ++filename) {
 119     std::string filepath = std::string("levels/") + *filename;
 120     if(PHYSFS_isDirectory(filepath.c_str()))
 121       level_subsets.push_back(filepath);
 122   }
 123   PHYSFS_freeList(files);
 124
 125   free_contrib_menu();
 126
 127   contrib_menu->add_label(_("Contrib Levels"));
 128   contrib_menu->add_hl();
 129
 130   int i = 0;
 131   for (std::vector<std::string>::iterator it = level_subsets.begin();
 132       it != level_subsets.end(); ++it) {
 133     try {
 134       std::auto_ptr<LevelSubset> subset (new LevelSubset());
 135       subset->load(*it);
 136       if(subset->hide_from_contribs) {
 137         continue;
 138       }
 139       contrib_menu->add_submenu(subset->title, contrib_subset_menu, i++);
 140       contrib_subsets.push_back(subset.release());
 141     } catch(std::exception& e) {
 142 #ifdef DEBUG
 143       msg_warning("Couldn't parse levelset info for '"
 144         << *it << "': " << e.what() << "");
 145 #endif
 146     }
 147   }
 148
 149   contrib_menu->add_hl();
 150   contrib_menu->add_back(_("Back"));
 151 }
 152
 153 std::string get_level_name(const std::string& filename)
 154 {
 155   try {
 156     lisp::Parser parser;
 157     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 158
 159     const lisp::Lisp* level = root->get_lisp("supertux-level");
 160     if(!level)
 161       return "";
 162
 163     std::string name;
 164     level->get("name", name);
 165     return name;
 166   } catch(std::exception& e) {
 167     msg_warning("Problem getting name of '" << filename << "'.");
 168     return "";
 169   }
 170 }
 171
 172 void check_levels_contrib_menu()
 173 {
 174   int index = contrib_menu->check();
 175   if (index == -1)
 176     return;
 177
 178   LevelSubset& subset = * (contrib_subsets[index]);
 179
 180   if(subset.has_worldmap) {
 181     WorldMapNS::WorldMap worldmap;
 182     worldmap.set_map_filename(subset.get_worldmap_filename());
 183     sound_manager->stop_music();
 184
 185     // some fading
 186     fadeout(256);
 187     DrawingContext context;
 188     context.draw_text(white_text, "Loading...",
 189         Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 190     context.do_drawing();
 191
 192     // TODO: slots should be available for contrib maps
 193     worldmap.loadgame("save/" + subset.name + "-slot1.stsg");
 194     worldmap.display();  // run the map
 195
 196     Menu::set_current(main_menu);
 197     resume_demo();
 198   } else if (current_subset != index) {
 199     current_subset = index;
 200     LevelSubset& subset = * (contrib_subsets[index]);
 201
 202     current_contrib_subset = &subset;
 203
 204     contrib_subset_menu->clear();
 205
 206     contrib_subset_menu->add_label(subset.title);
 207     contrib_subset_menu->add_hl();
 208
 209     for (int i = 0; i < subset.get_num_levels(); ++i)
 210     {
 211       /** get level's title */
 212       std::string filename = subset.get_level_filename(i);
 213       std::string title = get_level_name(filename);
 214       contrib_subset_menu->add_entry(i, title);
 215     }
 216
 217     contrib_subset_menu->add_hl();
 218     contrib_subset_menu->add_back(_("Back"));
 219
 220     titlesession->get_current_sector()->activate("main");
 221     titlesession->set_current();
 222   }
 223 }
 224
 225 void check_contrib_subset_menu()
 226 {
 227   int index = contrib_subset_menu->check();
 228   if (index != -1) {
 229     if (contrib_subset_menu->get_item_by_id(index).kind == MN_ACTION) {
 230       sound_manager->stop_music();
 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   static Timer randomWaitTimer;
 244   static Timer jumpPushTimer;
 245   static Timer jumpRecoverTimer;
 246   static float last_tux_x_pos = -1;
 247   static float last_tux_y_pos = -1;
 248
 249   Sector* sector  = titlesession->get_current_sector();
 250   Player* tux = sector->player;
 251
 252   sector->play_music(LEVEL_MUSIC);
 253
 254   controller->update();
 255   controller->press(Controller::RIGHT);
 256
 257   // Determine how far we moved since last frame
 258   float dx = fabsf(last_tux_x_pos - tux->get_pos().x);
 259   float dy = fabsf(last_tux_y_pos - tux->get_pos().y);
 260
 261   // Calculate space to check for obstacles
 262   Rect lookahead = Rect(tux->get_bbox());
 263   lookahead.move(Vector(lookahead.get_width()*2,0));
 264
 265   // Check if we should press the jump button
 266   bool randomJump = !randomWaitTimer.started();
 267   bool mayJump = !jumpRecoverTimer.started();
 268   bool notMoving = (dx+dy < 0.1);
 269   bool pathBlocked = !sector->is_free_space(lookahead);
 270   if ((notMoving || pathBlocked || randomJump) && mayJump) {
 271     float jumpDuration = float(rand() % 200 + 500) / 1000.0;
 272     jumpPushTimer.start(jumpDuration);
 273     jumpRecoverTimer.start(jumpDuration+0.1);
 274     randomWaitTimer.start(float(rand() % 3000 + 3000) / 1000.0);
 275   }
 276
 277   // Keep jump button pressed
 278   if (jumpPushTimer.started()) controller->press(Controller::JUMP);
 279
 280   // Remember last position, so we can determine if we moved
 281   last_tux_x_pos = tux->get_pos().x;
 282   last_tux_y_pos = tux->get_pos().y;
 283
 284   // Wrap around at the end of the level back to the beginnig
 285   if(sector->solids->get_width() * 32 - 320 < tux->get_pos().x) {
 286     sector->activate("main");
 287     sector->camera->reset(tux->get_pos());
 288   }
 289
 290   sector->update(elapsed_time);
 291   sector->draw(*titlesession->context);
 292 }
 293
 294 /* --- TITLE SCREEN --- */
 295 void title()
 296 {
 297   //LevelEditor* leveleditor;
 298   controller = new CodeController();
 299
 300   titlesession = new GameSession("levels/misc/menu.stl", ST_GL_DEMO_GAME);
 301
 302   /* Load images: */
 303   bkg_title = new Surface("images/background/arctis.jpg");
 304   logo = new Surface("images/engine/menu/logo.png");
 305   //img_choose_subset = new Surface("images/status/choose-level-subset.png");
 306
 307   titlesession->get_current_sector()->activate("main");
 308   titlesession->set_current();
 309
 310   Player* player = titlesession->get_current_sector()->player;
 311   player->set_controller(controller);
 312
 313   /* --- Main title loop: --- */
 314   frame = 0;
 315
 316   Uint32 lastticks = SDL_GetTicks();
 317
 318   Menu::set_current(main_menu);
 319   DrawingContext& context = *titlesession->context;
 320   bool running = true;
 321   while (running)
 322     {
 323       // Calculate the movement-factor
 324       Uint32 ticks = SDL_GetTicks();
 325       float elapsed_time = float(ticks - lastticks) / 1000.;
 326       game_time += elapsed_time;
 327       lastticks = ticks;
 328       // 40fps is minimum
 329       if(elapsed_time > .04)
 330         elapsed_time = .04;
 331
 332       /* Lower the speed so that Tux doesn't jump too hectically throught
 333          the demo. */
 334       elapsed_time /= 2;
 335
 336       SDL_Event event;
 337       main_controller->update();
 338       while (SDL_PollEvent(&event)) {
 339         if (Menu::current()) {
 340           Menu::current()->event(event);
 341         }
 342         main_controller->process_event(event);
 343         if (event.type == SDL_QUIT)
 344           throw graceful_shutdown();
 345       }
 346
 347       /* Draw the background: */
 348       draw_demo(elapsed_time);
 349
 350       if (Menu::current() == main_menu)
 351         context.draw_surface(logo, Vector(SCREEN_WIDTH/2 - logo->get_width()/2, 30),
 352             LAYER_FOREGROUND1+1);
 353
 354       context.draw_text(white_small_text, " SuperTux " PACKAGE_VERSION "\n",
 355               Vector(0, SCREEN_HEIGHT - 50), LEFT_ALLIGN, LAYER_FOREGROUND1);
 356       context.draw_text(white_small_text,
 357         _(
 358 "Copyright (c) 2006 SuperTux Devel Team\n"
 359 "This game comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to\n"
 360 "redistribute it under certain conditions; see the file COPYING for details.\n"
 361         ),
 362         Vector(0, SCREEN_HEIGHT - 50 + white_small_text->get_height() + 5),
 363         LEFT_ALLIGN, LAYER_FOREGROUND1);
 364
 365       /* Don't draw menu, if quit is true */
 366       Menu* menu = Menu::current();
 367       if(menu)
 368         {
 369           menu->draw(context);
 370           menu->update();
 371
 372           if(menu == main_menu)
 373             {
 374               switch (main_menu->check())
 375                 {
 376                 case MNID_STARTGAME:
 377                   // Start Game, ie. goto the slots menu
 378                   update_load_save_game_menu(load_game_menu);
 379                   break;
 380                 case MNID_LEVELS_CONTRIB:
 381                   // Contrib Menu
 382                   generate_contrib_menu();
 383                   break;
 384                 case MNID_CREDITS:
 385                   sound_manager->stop_music();
 386                   fadeout(500);
 387                   sound_manager->play_music("music/credits.ogg");
 388                   display_text_file("credits.txt");
 389                   sound_manager->stop_music();
 390                   fadeout(500);
 391                   Menu::set_current(main_menu);
 392                   break;
 393                 case MNID_QUITMAINMENU:
 394                   running = false;
 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                   str = "save/slot" + stream.str() + ".stsg";
 413                   msg_debug("Removing: " << str);
 414                   PHYSFS_delete(str.c_str());
 415                 }
 416
 417                 update_load_save_game_menu(load_game_menu);
 418                 Menu::set_current(main_menu);
 419                 resume_demo();
 420                 }
 421               else if (process_load_game_menu())
 422                 {
 423                   resume_demo();
 424                 }
 425             }
 426           else if(menu == contrib_menu)
 427             {
 428               check_levels_contrib_menu();
 429             }
 430           else if (menu == contrib_subset_menu)
 431             {
 432               check_contrib_subset_menu();
 433             }
 434         }
 435
 436       // reopen menu of user closed it (so that the app doesn't close when user
 437       // accidently hit ESC)
 438       if(Menu::current() == 0) {
 439         Menu::set_current(main_menu);
 440       }
 441
 442       context.do_drawing();
 443       sound_manager->update();
 444
 445       //frame_rate.update();
 446
 447       /* Pause: */
 448       frame++;
 449     }
 450   /* Free surfaces: */
 451
 452   free_contrib_menu();
 453   delete titlesession;
 454   delete bkg_title;
 455   delete logo;
 456   //delete img_choose_subset;
 457 }