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 #ifndef WIN32
  37 #include <sys/types.h>
  38 #include <ctype.h>
  39 #endif
  40
  41 #include "title.h"
  42 #include "video/screen.h"
  43 #include "video/surface.h"
  44 #include "gui/menu.h"
  45 #include "timer.h"
  46 #include "lisp/lisp.h"
  47 #include "lisp/parser.h"
  48 #include "level.h"
  49 #include "level_subset.h"
  50 #include "game_session.h"
  51 #include "worldmap.h"
  52 #include "leveleditor.h"
  53 #include "player_status.h"
  54 #include "tile.h"
  55 #include "sector.h"
  56 #include "object/tilemap.h"
  57 #include "object/camera.h"
  58 #include "object/player.h"
  59 #include "resources.h"
  60 #include "gettext.h"
  61 #include "misc.h"
  62 #include "textscroller.h"
  63 #include "file_system.h"
  64 #include "control/joystickkeyboardcontroller.h"
  65 #include "control/codecontroller.h"
  66 #include "main.h"
  67
  68 static Surface* bkg_title;
  69 static Surface* logo;
  70 //static Surface* img_choose_subset;
  71
  72 static bool walking;
  73 static Timer random_timer;
  74
  75 static int frame;
  76
  77 static GameSession* titlesession;
  78 static CodeController* controller;
  79
  80 static std::vector<LevelSubset*> contrib_subsets;
  81 static LevelSubset* current_contrib_subset = 0;
  82
  83 /* If the demo was stopped - because game started, level
  84    editor was excuted, etc - call this when you get back
  85    to the title code.
  86  */
  87 void resume_demo()
  88 {
  89   player_status.reset();
  90   titlesession->get_current_sector()->activate("main");
  91   titlesession->set_current();
  92
  93   //frame_rate.update();
  94 }
  95
  96 void update_load_save_game_menu(Menu* menu)
  97 {
  98   printf("update loadsavemenu.\n");
  99   for(int i = 1; i < 6; ++i) {
 100     MenuItem& item = menu->get_item_by_id(i);
 101     item.kind = MN_ACTION;
 102     item.change_text(slotinfo(i));
 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::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       std::cerr << "Couldn't parse levelset info for '"
 147         << *it << "': " << e.what() << "\n";
 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     std::cerr << "Problem getting name of '" << filename << "'.\n";
 171     return "";
 172   }
 173 }
 174
 175 void check_levels_contrib_menu()
 176 {
 177   static int current_subset = -1;
 178
 179   int index = contrib_menu->check();
 180   if (index == -1)
 181     return;
 182
 183   LevelSubset& subset = * (contrib_subsets[index]);
 184
 185   if(subset.has_worldmap) {
 186     WorldMapNS::WorldMap worldmap;
 187     worldmap.set_map_filename(subset.get_worldmap_filename());
 188
 189     // some fading
 190     fadeout(256);
 191     DrawingContext context;
 192     context.draw_text(white_text, "Loading...",
 193         Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 194     context.do_drawing();
 195
 196     // TODO: slots should be available for contrib maps
 197     worldmap.loadgame("save/" + subset.name + "-slot1.stsg");
 198     worldmap.display();  // run the map
 199
 200     Menu::set_current(main_menu);
 201     resume_demo();
 202   } else if (current_subset != index) {
 203     current_subset = index;
 204     LevelSubset& subset = * (contrib_subsets[index]);
 205
 206     current_contrib_subset = &subset;
 207
 208     contrib_subset_menu->clear();
 209
 210     contrib_subset_menu->add_label(subset.title);
 211     contrib_subset_menu->add_hl();
 212
 213     for (int i = 0; i < subset.get_num_levels(); ++i)
 214     {
 215       /** get level's title */
 216       std::string filename = subset.get_level_filename(i);
 217       std::string title = get_level_name(filename);
 218       contrib_subset_menu->add_entry(i, title);
 219     }
 220
 221     contrib_subset_menu->add_hl();
 222     contrib_subset_menu->add_back(_("Back"));
 223
 224     titlesession->get_current_sector()->activate("main");
 225     titlesession->set_current();
 226   }
 227 }
 228
 229 void check_contrib_subset_menu()
 230 {
 231   int index = contrib_subset_menu->check();
 232   if (index != -1) {
 233     if (contrib_subset_menu->get_item_by_id(index).kind == MN_ACTION) {
 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 float last_tux_x_pos = -1;
 247   static float last_tux_y_pos = -1;
 248   Sector* sector  = titlesession->get_current_sector();
 249   Player* tux = sector->player;
 250
 251   sector->play_music(LEVEL_MUSIC);
 252
 253   controller->update();
 254   controller->press(Controller::RIGHT);
 255
 256   if(random_timer.check() ||
 257       (walking && fabsf(last_tux_x_pos - tux->get_pos().x)) < .1) {
 258     walking = false;
 259   } else {
 260       if(!walking && fabsf(tux->get_pos().y - last_tux_y_pos) < .1) {
 261         random_timer.start(float(rand() % 3000 + 3000) / 1000.);
 262         walking = true;
 263       }
 264   }
 265   if(!walking)
 266     controller->press(Controller::JUMP);
 267   last_tux_x_pos = tux->get_pos().x;
 268   last_tux_y_pos = tux->get_pos().y;
 269
 270   // Wrap around at the end of the level back to the beginnig
 271   if(sector->solids->get_width() * 32 - 320 < tux->get_pos().x) {
 272     sector->activate("main");
 273     sector->camera->reset(tux->get_pos());
 274   }
 275
 276   sector->update(elapsed_time);
 277   sector->draw(*titlesession->context);
 278 }
 279
 280 /* --- TITLE SCREEN --- */
 281 void title()
 282 {
 283   walking = true;
 284   //LevelEditor* leveleditor;
 285   MusicRef credits_music;
 286   controller = new CodeController();
 287
 288   titlesession = new GameSession("levels/misc/menu.stl", ST_GL_DEMO_GAME);
 289
 290   /* Load images: */
 291   bkg_title = new Surface("images/background/arctis.jpg", false);
 292   logo = new Surface("images/engine/menu/logo.png", true);
 293   //img_choose_subset = new Surface("images/status/choose-level-subset.png", true);
 294
 295   titlesession->get_current_sector()->activate("main");
 296   titlesession->set_current();
 297
 298   Player* player = titlesession->get_current_sector()->player;
 299   player->set_controller(controller);
 300
 301   /* --- Main title loop: --- */
 302   frame = 0;
 303
 304   random_timer.start(float(rand() % 2000 + 2000) / 1000.0);
 305
 306   Uint32 lastticks = SDL_GetTicks();
 307
 308   Menu::set_current(main_menu);
 309   DrawingContext& context = *titlesession->context;
 310   bool running = true;
 311   while (running)
 312     {
 313       // Calculate the movement-factor
 314       Uint32 ticks = SDL_GetTicks();
 315       float elapsed_time = float(ticks - lastticks) / 1000.;
 316       global_time += elapsed_time;
 317       lastticks = ticks;
 318       // 40fps is minimum
 319       if(elapsed_time > .04)
 320         elapsed_time = .04;
 321
 322       /* Lower the speed so that Tux doesn't jump too hectically throught
 323          the demo. */
 324       elapsed_time /= 2;
 325
 326       SDL_Event event;
 327       main_controller->update();
 328       while (SDL_PollEvent(&event)) {
 329         if (Menu::current()) {
 330           Menu::current()->event(event);
 331         }
 332         main_controller->process_event(event);
 333         if (event.type == SDL_QUIT)
 334           throw std::runtime_error("Received window close");
 335       }
 336
 337       /* Draw the background: */
 338       draw_demo(elapsed_time);
 339
 340       if (Menu::current() == main_menu)
 341         context.draw_surface(logo, Vector(SCREEN_WIDTH/2 - logo->w/2, 30),
 342             LAYER_FOREGROUND1+1);
 343
 344       context.draw_text(white_small_text, " SuperTux " PACKAGE_VERSION "\n",
 345               Vector(0, SCREEN_HEIGHT - 50), LEFT_ALLIGN, LAYER_FOREGROUND1);
 346       context.draw_text(white_small_text,
 347         _(
 348 "Copyright (c) 2005 SuperTux Devel Team\n"
 349 "This game comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to\n"
 350 "redistribute it under certain conditions; see the file COPYING for details.\n"
 351         ),
 352         Vector(0, SCREEN_HEIGHT - 50 + white_small_text->get_height() + 5),
 353         LEFT_ALLIGN, LAYER_FOREGROUND1);
 354
 355       /* Don't draw menu, if quit is true */
 356       Menu* menu = Menu::current();
 357       if(menu)
 358         {
 359           menu->draw(context);
 360           menu->update();
 361
 362           if(menu == main_menu)
 363             {
 364               switch (main_menu->check())
 365                 {
 366                 case MNID_STARTGAME:
 367                   // Start Game, ie. goto the slots menu
 368                   update_load_save_game_menu(load_game_menu);
 369                   break;
 370                 case MNID_LEVELS_CONTRIB:
 371                   // Contrib Menu
 372                   generate_contrib_menu();
 373                   break;
 374 #if 0
 375                 case MNID_LEVELEDITOR: {
 376                   LevelEdtiro* leveleditor = new LevelEditor();
 377                   leveleditor->run();
 378                   delete leveleditor;
 379                   Menu::set_current(main_menu);
 380                   resume_demo();
 381                   break;
 382                 }
 383 #endif
 384                 case MNID_CREDITS:
 385                   fadeout(500);
 386                   credits_music = sound_manager->load_music(
 387                       "/music/credits.ogg");
 388                   sound_manager->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                   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                   printf("Removing: %s\n",str.c_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
 444       //frame_rate.update();
 445
 446       /* Pause: */
 447       frame++;
 448     }
 449   /* Free surfaces: */
 450
 451   free_contrib_menu();
 452   delete titlesession;
 453   delete bkg_title;
 454   delete logo;
 455   //delete img_choose_subset;
 456 }