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 "defines.h"
  40 #include "app/globals.h"
  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 "special/frame_rate.h"
  47 #include "app/setup.h"
  48 #include "lisp/lisp.h"
  49 #include "lisp/parser.h"
  50 #include "level.h"
  51 #include "level_subset.h"
  52 #include "gameloop.h"
  53 #include "worldmap.h"
  54 #include "leveleditor.h"
  55 #include "scene.h"
  56 #include "tile.h"
  57 #include "sector.h"
  58 #include "object/tilemap.h"
  59 #include "object/camera.h"
  60 #include "object/player.h"
  61 #include "resources.h"
  62 #include "app/gettext.h"
  63 #include "misc.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   // FIXME: shouldn't be needed if GameSession
  88   // didn't relay on global variables
  89   titlesession->get_current_sector()->activate();
  90   titlesession->set_current();
  91
  92   frame_rate.update();
  93 }
  94
  95 void update_load_save_game_menu(Menu* pmenu)
  96 {
  97   for(int i = 2; i < 7; ++i)
  98     {
  99       // FIXME: Insert a real savegame struct/class here instead of
 100       // doing string vodoo
 101       std::string tmp = slotinfo(i - 1);
 102       pmenu->item[i].kind = MN_ACTION;
 103       pmenu->item[i].change_text(tmp.c_str());
 104     }
 105 }
 106
 107 void free_contrib_menu()
 108 {
 109   for(std::vector<LevelSubset*>::iterator i = contrib_subsets.begin();
 110       i != contrib_subsets.end(); ++i)
 111     delete *i;
 112
 113   contrib_subsets.clear();
 114   contrib_menu->clear();
 115 }
 116
 117 void generate_contrib_menu()
 118 {
 119   /** Generating contrib levels list by making use of Level Subset  */
 120   std::set<std::string> level_subsets = FileSystem::dsubdirs("/levels", "info");
 121
 122   free_contrib_menu();
 123
 124   contrib_menu->additem(MN_LABEL,_("Contrib Levels"),0,0);
 125   contrib_menu->additem(MN_HL,"",0,0);
 126
 127   int i = 0;
 128   for (std::set<std::string>::iterator it = level_subsets.begin();
 129       it != level_subsets.end(); ++it)
 130     {
 131       LevelSubset* subset = new LevelSubset();
 132       subset->load(*it);
 133       if(subset->hide_from_contribs) {
 134         delete subset;
 135         continue;
 136       }
 137       contrib_menu->additem(MN_GOTO, subset->title, 0, contrib_subset_menu, i);
 138       contrib_subsets.push_back(subset);
 139       ++i;
 140     }
 141
 142   contrib_menu->additem(MN_HL,"",0,0);
 143   contrib_menu->additem(MN_BACK,_("Back"),0,0);
 144
 145   level_subsets.clear();
 146 }
 147
 148 std::string get_level_name(const std::string& filename)
 149 {
 150   try {
 151     lisp::Parser parser;
 152     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 153
 154     const lisp::Lisp* level = root->get_lisp("supertux-level");
 155     if(!level)
 156       return "";
 157
 158     std::string name;
 159     level->get("name", name);
 160     return name;
 161   } catch(std::exception& e) {
 162     std::cerr << "Problem getting name of '" << filename << "'.\n";
 163     return "";
 164   }
 165 }
 166
 167 void check_levels_contrib_menu()
 168 {
 169   static int current_subset = -1;
 170
 171   int index = contrib_menu->check();
 172   if (index == -1)
 173     return;
 174
 175   LevelSubset& subset = * (contrib_subsets[index]);
 176
 177   if(subset.has_worldmap) {
 178     WorldMapNS::WorldMap worldmap;
 179     worldmap.set_map_filename(subset.get_worldmap_filename());
 180
 181     // some fading
 182     fadeout(256);
 183     DrawingContext context;
 184     context.draw_text(white_text, "Loading...",
 185         Vector(screen->w/2, screen->h/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 186     context.do_drawing();
 187
 188     // TODO: slots should be available for contrib maps
 189     worldmap.loadgame(st_save_dir + "/" + subset.name + "-slot1.stsg");
 190
 191     worldmap.display();  // run the map
 192
 193     Menu::set_current(main_menu);
 194     resume_demo();
 195   } else if (current_subset != index) {
 196     current_subset = index;
 197     // FIXME: This shouln't be busy looping
 198     LevelSubset& subset = * (contrib_subsets[index]);
 199
 200     current_contrib_subset = &subset;
 201
 202     contrib_subset_menu->clear();
 203
 204     contrib_subset_menu->additem(MN_LABEL, subset.title, 0,0);
 205     contrib_subset_menu->additem(MN_HL,"",0,0);
 206
 207     for (int i = 0; i < subset.get_num_levels(); ++i)
 208     {
 209       /** get level's title */
 210       std::string filename = subset.get_level_filename(i);
 211       std::string title = get_level_name(filename);
 212       contrib_subset_menu->additem(MN_ACTION, title, 0, 0, i);
 213     }
 214
 215     contrib_subset_menu->additem(MN_HL,"",0,0);
 216     contrib_subset_menu->additem(MN_BACK, _("Back"), 0, 0);
 217
 218     titlesession->get_current_sector()->activate();
 219     titlesession->set_current();
 220   }
 221 }
 222
 223 void check_contrib_subset_menu()
 224 {
 225   int index = contrib_subset_menu->check();
 226   if (index != -1)
 227     {
 228       if (contrib_subset_menu->get_item_by_id(index).kind == MN_ACTION)
 229         {
 230           std::cout << "Starting level: " << index << std::endl;
 231
 232           GameSession session(
 233               current_contrib_subset->get_level_filename(index), ST_GL_PLAY);
 234           session.run();
 235           player_status.reset();
 236           Menu::set_current(main_menu);
 237           resume_demo();
 238         }
 239     }
 240 }
 241
 242 void draw_demo(float elapsed_time)
 243 {
 244   Sector* world  = titlesession->get_current_sector();
 245   Player* tux = world->player;
 246
 247   world->play_music(LEVEL_MUSIC);
 248
 249   tux->key_event((SDLKey) keymap.right,DOWN);
 250
 251   if(random_timer.check()) {
 252     random_timer.start(float(rand() % 3000 + 3000) / 1000.);
 253     walking = !walking;
 254   } else {
 255       if(walking)
 256         tux->key_event((SDLKey) keymap.jump,UP);
 257       else
 258         tux->key_event((SDLKey) keymap.jump,DOWN);
 259   }
 260
 261   // Wrap around at the end of the level back to the beginnig
 262   if(world->solids->get_width() * 32 - 320 < tux->get_pos().x)
 263     {
 264       tux->level_begin();
 265       world->camera->reset(tux->get_pos());
 266     }
 267
 268   tux->can_jump = true;
 269   float last_tux_x_pos = tux->get_pos().x;
 270   world->action(elapsed_time);
 271
 272
 273   // disabled for now, since with the new jump code we easily get deadlocks
 274   // Jump if tux stays in the same position for one loop, ie. if he is
 275   // stuck behind a wall
 276   if (last_tux_x_pos == tux->get_pos().x)
 277     {
 278       walking = false;
 279     }
 280
 281   world->draw(*titlesession->context);
 282 }
 283
 284 /* --- TITLE SCREEN --- */
 285 void title(void)
 286 {
 287   walking = true;
 288   LevelEditor* leveleditor;
 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();
 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->w/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->h - 70), LEFT_ALLIGN, LAYER_FOREGROUND1);
 349       context.draw_text(white_small_text,
 350         _("Copyright (c) 2003 SuperTux Devel Team\n"
 351           "This game comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
 352           "are welcome to redistribute it under certain conditions; see the file COPYING\n"
 353           "for details.\n"), Vector(0, screen->h - 70 + white_small_text->get_height()), 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->action();
 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                   puts("Entering contrib menu");
 373                   generate_contrib_menu();
 374                   break;
 375                 case MNID_LEVELEDITOR:
 376                   leveleditor = new LevelEditor();
 377                   leveleditor->run();
 378                   delete leveleditor;
 379                   Menu::set_current(main_menu);
 380                   resume_demo();
 381                   break;
 382                 case MNID_CREDITS:
 383                   fadeout(500);
 384                   display_text_file("credits.txt", SCROLL_SPEED_CREDITS, white_big_text , white_text, white_small_text, blue_text );
 385                   fadeout(500);
 386                   Menu::set_current(main_menu);
 387                   break;
 388                 case MNID_QUITMAINMENU:
 389                   Menu::set_current(0);
 390                   break;
 391                 }
 392             }
 393           else if(menu == options_menu)
 394             {
 395               process_options_menu();
 396             }
 397           else if(menu == load_game_menu)
 398             {
 399               if(event.key.keysym.sym == SDLK_DELETE)
 400                 {
 401                 int slot = menu->get_active_item_id();
 402                 std::stringstream stream;
 403                 stream << slot;
 404                 std::string str = _("Are you sure you want to delete slot") + stream.str() + "?";
 405
 406                 if(confirm_dialog(bkg_title, str.c_str()))
 407                   {
 408                   str = st_save_dir + "/slot" + stream.str() + ".stsg";
 409                   printf("Removing: %s\n",str.c_str());
 410                   remove(str.c_str());
 411                   }
 412
 413                 update_load_save_game_menu(load_game_menu);
 414                 Menu::set_current(main_menu);
 415                 resume_demo();
 416                 }
 417               else if (process_load_game_menu())
 418                 {
 419                   resume_demo();
 420                 }
 421             }
 422           else if(menu == contrib_menu)
 423             {
 424               check_levels_contrib_menu();
 425             }
 426           else if (menu == contrib_subset_menu)
 427             {
 428               check_contrib_subset_menu();
 429             }
 430         }
 431
 432       mouse_cursor->draw(context);
 433
 434       context.do_drawing();
 435
 436       frame_rate.update();
 437
 438       /* Pause: */
 439       frame++;
 440     }
 441   /* Free surfaces: */
 442
 443   free_contrib_menu();
 444   delete titlesession;
 445   delete bkg_title;
 446   delete logo;
 447   delete img_choose_subset;
 448 }
 449