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 static int first_level_index;
  79
  80 static std::set<std::string> worldmap_list;
  81
  82 static FrameRate frame_rate(100);
  83
  84 /* If the demo was stopped - because game started, level
  85    editor was excuted, etc - call this when you get back
  86    to the title code.
  87  */
  88 void resume_demo()
  89 {
  90   // FIXME: shouldn't be needed if GameSession
  91   // didn't relay on global variables
  92   titlesession->get_current_sector()->activate();
  93   titlesession->set_current();
  94
  95   frame_rate.update();
  96 }
  97
  98 void update_load_save_game_menu(Menu* pmenu)
  99 {
 100   for(int i = 2; i < 7; ++i)
 101     {
 102       // FIXME: Insert a real savegame struct/class here instead of
 103       // doing string vodoo
 104       std::string tmp = slotinfo(i - 1);
 105       pmenu->item[i].kind = MN_ACTION;
 106       pmenu->item[i].change_text(tmp.c_str());
 107     }
 108 }
 109
 110 void free_contrib_menu()
 111 {
 112   for(std::vector<LevelSubset*>::iterator i = contrib_subsets.begin();
 113       i != contrib_subsets.end(); ++i)
 114     delete *i;
 115
 116   contrib_subsets.clear();
 117   contrib_menu->clear();
 118 }
 119
 120 void generate_contrib_menu()
 121 {
 122   /** Generating contrib levels list by making use of Level Subset  */
 123   std::set<std::string> level_subsets = FileSystem::dsubdirs("/levels", "info");
 124
 125   free_contrib_menu();
 126
 127   contrib_menu->additem(MN_LABEL,_("Contrib Levels"),0,0);
 128   contrib_menu->additem(MN_HL,"",0,0);
 129   int i = 0;
 130
 131   for(std::set<std::string>::iterator it = worldmap_list.begin();
 132           it != worldmap_list.end(); ++it) {
 133     WorldMapNS::WorldMap worldmap;
 134     worldmap.loadmap((*it).c_str());
 135     contrib_menu->additem(MN_ACTION, worldmap.get_world_title(),0,0, i);
 136     ++i;
 137   }
 138
 139   contrib_menu->additem(MN_HL,"",0,0);
 140
 141   first_level_index = i;
 142   for (std::set<std::string>::iterator it = level_subsets.begin(); it != level_subsets.end(); ++it)
 143     {
 144       LevelSubset* subset = new LevelSubset();
 145       subset->load(*it);
 146       if(subset->hide_from_contribs)
 147         {
 148         delete subset;
 149         continue;
 150         }
 151       contrib_menu->additem(MN_GOTO, subset->title, 0, contrib_subset_menu, i);
 152       contrib_subsets.push_back(subset);
 153       ++i;
 154     }
 155
 156   contrib_menu->additem(MN_HL,"",0,0);
 157   contrib_menu->additem(MN_BACK,_("Back"),0,0);
 158
 159   level_subsets.clear();
 160 }
 161
 162 std::string get_level_name(const std::string& filename)
 163 {
 164   try {
 165     lisp::Parser parser;
 166     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 167
 168     const lisp::Lisp* level = root->get_lisp("supertux-level");
 169     if(!level)
 170       return "";
 171
 172     std::string name;
 173     level->get("name", name);
 174     return name;
 175   } catch(std::exception& e) {
 176     std::cerr << "Problem getting name of '" << filename << "'.\n";
 177     return "";
 178   }
 179 }
 180
 181 void check_levels_contrib_menu()
 182 {
 183   static int current_subset = -1;
 184
 185   int index = contrib_menu->check();
 186   if (index == -1)
 187     return;
 188
 189   if((unsigned)index < worldmap_list.size())
 190     {
 191     WorldMapNS::WorldMap worldmap;
 192     std::set<std::string>::iterator it = worldmap_list.begin();
 193     for(int i = index; i > 0; --i)
 194     ++it;
 195
 196     std::string map_filename = *it;
 197
 198     // some fading
 199     fadeout(256);
 200     DrawingContext context;
 201       context.draw_text(white_text, "Loading...",
 202                         Vector(screen->w/2, screen->h/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 203       context.do_drawing();
 204
 205     worldmap.set_map_filename(map_filename);
 206
 207     // hack to erase the extension
 208     unsigned int ext_pos = it->find_last_of(".");
 209     if(ext_pos != std::string::npos)
 210       map_filename.erase(ext_pos, map_filename.size() - ext_pos);
 211
 212     // TODO: slots should be available for contrib maps
 213     worldmap.loadgame(st_save_dir + "/" + map_filename + "-slot1.stsg");
 214
 215     worldmap.display();  // run the map
 216
 217     Menu::set_current(main_menu);
 218     resume_demo();
 219     }
 220   else if (index < (int)contrib_subsets.size() + first_level_index)
 221     {
 222     index -= first_level_index;
 223     if (current_subset != index)
 224       {
 225       current_subset = index;
 226       // FIXME: This shouln't be busy looping
 227       LevelSubset& subset = * (contrib_subsets[index]);
 228
 229       current_contrib_subset = &subset;
 230
 231       contrib_subset_menu->clear();
 232
 233       contrib_subset_menu->additem(MN_LABEL, subset.title, 0,0);
 234       contrib_subset_menu->additem(MN_HL,"",0,0);
 235
 236       for (int i = 0; i < subset.get_num_levels(); ++i)
 237       {
 238         /** get level's title */
 239         std::string filename = subset.get_level_filename(i);
 240         std::string title = get_level_name(filename);
 241         contrib_subset_menu->additem(MN_ACTION, title, 0, 0, i);
 242       }
 243
 244       contrib_subset_menu->additem(MN_HL,"",0,0);
 245       contrib_subset_menu->additem(MN_BACK, _("Back"), 0, 0);
 246
 247       titlesession->get_current_sector()->activate();
 248       titlesession->set_current();
 249       }
 250     }
 251 }
 252
 253 void check_contrib_subset_menu()
 254 {
 255   int index = contrib_subset_menu->check();
 256   if (index != -1)
 257     {
 258       if (contrib_subset_menu->get_item_by_id(index).kind == MN_ACTION)
 259         {
 260           std::cout << "Starting level: " << index << std::endl;
 261
 262           GameSession session(
 263               current_contrib_subset->get_level_filename(index), ST_GL_PLAY);
 264           session.run();
 265           player_status.reset();
 266           Menu::set_current(main_menu);
 267           resume_demo();
 268         }
 269     }
 270 }
 271
 272 void draw_demo(float elapsed_time)
 273 {
 274   Sector* world  = titlesession->get_current_sector();
 275   Player* tux = world->player;
 276
 277   world->play_music(LEVEL_MUSIC);
 278
 279   tux->key_event((SDLKey) keymap.right,DOWN);
 280
 281   if(random_timer.check()) {
 282     random_timer.start(float(rand() % 3000 + 3000) / 1000.);
 283     walking = !walking;
 284   } else {
 285       if(walking)
 286         tux->key_event((SDLKey) keymap.jump,UP);
 287       else
 288         tux->key_event((SDLKey) keymap.jump,DOWN);
 289   }
 290
 291   // Wrap around at the end of the level back to the beginnig
 292   if(world->solids->get_width() * 32 - 320 < tux->get_pos().x)
 293     {
 294       tux->level_begin();
 295       world->camera->reset(tux->get_pos());
 296     }
 297
 298   tux->can_jump = true;
 299   float last_tux_x_pos = tux->get_pos().x;
 300   world->action(elapsed_time);
 301
 302
 303   // disabled for now, since with the new jump code we easily get deadlocks
 304   // Jump if tux stays in the same position for one loop, ie. if he is
 305   // stuck behind a wall
 306   if (last_tux_x_pos == tux->get_pos().x)
 307     {
 308       walking = false;
 309     }
 310
 311   world->draw(*titlesession->context);
 312 }
 313
 314 /* --- TITLE SCREEN --- */
 315 void title(void)
 316 {
 317   walking = true;
 318   LevelEditor* leveleditor;
 319
 320   Ticks::pause_init();
 321
 322   titlesession = new GameSession(get_resource_filename("levels/misc/menu.stl"),
 323       ST_GL_DEMO_GAME);
 324
 325   /* Load images: */
 326   bkg_title = new Surface(datadir + "/images/background/arctis.jpg", false);
 327   logo = new Surface(datadir + "/images/title/logo.png", true);
 328   img_choose_subset = new Surface(datadir + "/images/status/choose-level-subset.png", true);
 329
 330   /* Generating contrib maps by only using a string_list */
 331   worldmap_list = FileSystem::dfiles("levels/worldmap", "", "icyisland.stwm");
 332
 333   titlesession->get_current_sector()->activate();
 334   titlesession->set_current();
 335
 336   /* --- Main title loop: --- */
 337   frame = 0;
 338
 339   random_timer.start(float(rand() % 2000 + 2000) / 1000.0);
 340
 341   Uint32 lastticks = SDL_GetTicks();
 342
 343   Menu::set_current(main_menu);
 344   DrawingContext& context = *titlesession->context;
 345   while (Menu::current())
 346     {
 347       // Calculate the movement-factor
 348       Uint32 ticks = SDL_GetTicks();
 349       float elapsed_time = float(ticks - lastticks) / 1000.;
 350       global_time += elapsed_time;
 351       lastticks = ticks;
 352       // 40fps is minimum
 353       if(elapsed_time > .04)
 354         elapsed_time = .04;
 355
 356       /* Lower the speed so that Tux doesn't jump too hectically throught
 357          the demo. */
 358       elapsed_time /= 2;
 359
 360       SDL_Event event;
 361       while (SDL_PollEvent(&event))
 362         {
 363           if (Menu::current())
 364             {
 365               Menu::current()->event(event);
 366             }
 367          // FIXME: QUIT signal should be handled more generic, not locally
 368           if (event.type == SDL_QUIT)
 369             Menu::set_current(0);
 370         }
 371
 372       /* Draw the background: */
 373       draw_demo(elapsed_time);
 374
 375
 376       if (Menu::current() == main_menu)
 377         context.draw_surface(logo, Vector(screen->w/2 - logo->w/2, 30),
 378             LAYER_FOREGROUND1+1);
 379
 380       context.draw_text(white_small_text, " SuperTux " PACKAGE_VERSION "\n",
 381               Vector(0, screen->h - 70), LEFT_ALLIGN, LAYER_FOREGROUND1);
 382       context.draw_text(white_small_text,
 383         _("Copyright (c) 2003 SuperTux Devel Team\n"
 384           "This game comes with ABSOLUTELY NO WARRANTY. This is free software, and you\n"
 385           "are welcome to redistribute it under certain conditions; see the file COPYING\n"
 386           "for details.\n"), Vector(0, screen->h - 70 + white_small_text->get_height()), LEFT_ALLIGN, LAYER_FOREGROUND1);
 387
 388       /* Don't draw menu, if quit is true */
 389       Menu* menu = Menu::current();
 390       if(menu)
 391         {
 392           menu->draw(context);
 393           menu->action();
 394
 395           if(menu == main_menu)
 396             {
 397               switch (main_menu->check())
 398                 {
 399                 case MNID_STARTGAME:
 400                   // Start Game, ie. goto the slots menu
 401                   update_load_save_game_menu(load_game_menu);
 402                   break;
 403                 case MNID_LEVELS_CONTRIB:
 404                   // Contrib Menu
 405                   puts("Entering contrib menu");
 406                   generate_contrib_menu();
 407                   break;
 408                 case MNID_LEVELEDITOR:
 409                   leveleditor = new LevelEditor();
 410                   leveleditor->run();
 411                   delete leveleditor;
 412                   Menu::set_current(main_menu);
 413                   resume_demo();
 414                   break;
 415                 case MNID_CREDITS:
 416                   fadeout(500);
 417                   display_text_file("credits.txt", SCROLL_SPEED_CREDITS, white_big_text , white_text, white_small_text, blue_text );
 418                   fadeout(500);
 419                   Menu::set_current(main_menu);
 420                   break;
 421                 case MNID_QUITMAINMENU:
 422                   Menu::set_current(0);
 423                   break;
 424                 }
 425             }
 426           else if(menu == options_menu)
 427             {
 428               process_options_menu();
 429             }
 430           else if(menu == load_game_menu)
 431             {
 432               if(event.key.keysym.sym == SDLK_DELETE)
 433                 {
 434                 int slot = menu->get_active_item_id();
 435                 std::stringstream stream;
 436                 stream << slot;
 437                 std::string str = _("Are you sure you want to delete slot") + stream.str() + "?";
 438
 439                 if(confirm_dialog(bkg_title, str.c_str()))
 440                   {
 441                   str = st_save_dir + "/slot" + stream.str() + ".stsg";
 442                   printf("Removing: %s\n",str.c_str());
 443                   remove(str.c_str());
 444                   }
 445
 446                 update_load_save_game_menu(load_game_menu);
 447                 Menu::set_current(main_menu);
 448                 resume_demo();
 449                 }
 450               else if (process_load_game_menu())
 451                 {
 452                   resume_demo();
 453                 }
 454             }
 455           else if(menu == contrib_menu)
 456             {
 457               check_levels_contrib_menu();
 458             }
 459           else if (menu == contrib_subset_menu)
 460             {
 461               check_contrib_subset_menu();
 462             }
 463         }
 464
 465       mouse_cursor->draw(context);
 466
 467       context.do_drawing();
 468
 469       frame_rate.update();
 470
 471       /* Pause: */
 472       frame++;
 473     }
 474   /* Free surfaces: */
 475
 476   free_contrib_menu();
 477   worldmap_list.clear();
 478   delete titlesession;
 479   delete bkg_title;
 480   delete logo;
 481   delete img_choose_subset;
 482 }
 483