src/worldmap.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux -  A Jump'n Run
   4 //  Copyright (C) 2004 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19 #include <config.h>
  20
  21 #include <iostream>
  22 #include <fstream>
  23 #include <vector>
  24 #include <cassert>
  25 #include <stdexcept>
  26 #include <sstream>
  27 #include <unistd.h>
  28
  29 #include "gettext.h"
  30 #include "video/surface.h"
  31 #include "video/screen.h"
  32 #include "video/drawing_context.h"
  33 #include "sprite/sprite_manager.h"
  34 #include "audio/sound_manager.h"
  35 #include "lisp/parser.h"
  36 #include "lisp/lisp.h"
  37 #include "lisp/list_iterator.h"
  38 #include "lisp/writer.h"
  39 #include "game_session.h"
  40 #include "sector.h"
  41 #include "worldmap.h"
  42 #include "resources.h"
  43 #include "misc.h"
  44 #include "player_status.h"
  45 #include "textscroller.h"
  46 #include "main.h"
  47 #include "spawn_point.h"
  48 #include "file_system.h"
  49 #include "gui/menu.h"
  50 #include "gui/mousecursor.h"
  51 #include "control/joystickkeyboardcontroller.h"
  52 #include "object/background.h"
  53 #include "object/tilemap.h"
  54 #include "scripting/script_interpreter.h"
  55
  56 Menu* worldmap_menu  = 0;
  57
  58 static const float TUXSPEED = 200;
  59 static const float map_message_TIME = 2.8;
  60
  61 namespace WorldMapNS {
  62
  63 Direction reverse_dir(Direction direction)
  64 {
  65   switch(direction)
  66     {
  67     case D_WEST:
  68       return D_EAST;
  69     case D_EAST:
  70       return D_WEST;
  71     case D_NORTH:
  72       return D_SOUTH;
  73     case D_SOUTH:
  74       return D_NORTH;
  75     case D_NONE:
  76       return D_NONE;
  77     }
  78   return D_NONE;
  79 }
  80
  81 std::string
  82 direction_to_string(Direction direction)
  83 {
  84   switch(direction)
  85     {
  86     case D_WEST:
  87       return "west";
  88     case D_EAST:
  89       return "east";
  90     case D_NORTH:
  91       return "north";
  92     case D_SOUTH:
  93       return "south";
  94     default:
  95       return "none";
  96     }
  97 }
  98
  99 Direction
 100 string_to_direction(const std::string& directory)
 101 {
 102   if (directory == "west")
 103     return D_WEST;
 104   else if (directory == "east")
 105     return D_EAST;
 106   else if (directory == "north")
 107     return D_NORTH;
 108   else if (directory == "south")
 109     return D_SOUTH;
 110   else
 111     return D_NONE;
 112 }
 113
 114 //---------------------------------------------------------------------------
 115
 116 Tux::Tux(WorldMap* worldmap_)
 117   : worldmap(worldmap_)
 118 {
 119   tux_sprite = sprite_manager->create("worldmaptux");
 120
 121   offset = 0;
 122   moving = false;
 123   direction = D_NONE;
 124   input_direction = D_NONE;
 125 }
 126
 127 Tux::~Tux()
 128 {
 129   delete tux_sprite;
 130 }
 131
 132 void
 133 Tux::draw(DrawingContext& context)
 134 {
 135   switch (player_status.bonus) {
 136     case GROWUP_BONUS:
 137       tux_sprite->set_action("large");
 138       break;
 139     case FIRE_BONUS:
 140       tux_sprite->set_action("fire");
 141       break;
 142     case NO_BONUS:
 143       tux_sprite->set_action("small");
 144       break;
 145     default:
 146 #ifdef DBEUG
 147       std::cerr << "Bonus type not handled in worldmap.\n";
 148 #endif
 149       tux_sprite->set_action("large");
 150       break;
 151   }
 152
 153   tux_sprite->draw(context, get_pos(), LAYER_OBJECTS);
 154 }
 155
 156
 157 Vector
 158 Tux::get_pos()
 159 {
 160   float x = tile_pos.x * 32;
 161   float y = tile_pos.y * 32;
 162
 163   switch(direction)
 164     {
 165     case D_WEST:
 166       x -= offset - 32;
 167       break;
 168     case D_EAST:
 169       x += offset - 32;
 170       break;
 171     case D_NORTH:
 172       y -= offset - 32;
 173       break;
 174     case D_SOUTH:
 175       y += offset - 32;
 176       break;
 177     case D_NONE:
 178       break;
 179     }
 180
 181   return Vector(x, y);
 182 }
 183
 184 void
 185 Tux::stop()
 186 {
 187   offset = 0;
 188   direction = D_NONE;
 189   input_direction = D_NONE;
 190   moving = false;
 191 }
 192
 193 void
 194 Tux::set_direction(Direction dir)
 195 {
 196   input_direction = dir;
 197 }
 198
 199 void
 200 Tux::update(float delta)
 201 {
 202   // check controller
 203   if(main_controller->pressed(Controller::UP))
 204     input_direction = D_NORTH;
 205   else if(main_controller->pressed(Controller::DOWN))
 206     input_direction = D_SOUTH;
 207   else if(main_controller->pressed(Controller::LEFT))
 208     input_direction = D_WEST;
 209   else if(main_controller->pressed(Controller::RIGHT))
 210     input_direction = D_EAST;
 211
 212   if(!moving)
 213     {
 214       if (input_direction != D_NONE)
 215         {
 216           WorldMap::Level* level = worldmap->at_level();
 217
 218           // We got a new direction, so lets start walking when possible
 219           Vector next_tile;
 220           if ((!level || level->solved)
 221               && worldmap->path_ok(input_direction, tile_pos, &next_tile))
 222             {
 223               tile_pos = next_tile;
 224               moving = true;
 225               direction = input_direction;
 226               back_direction = reverse_dir(direction);
 227             }
 228           else if (input_direction == back_direction)
 229             {
 230               moving = true;
 231               direction = input_direction;
 232               tile_pos = worldmap->get_next_tile(tile_pos, direction);
 233               back_direction = reverse_dir(direction);
 234             }
 235         }
 236     }
 237   else
 238     {
 239       // Let tux walk
 240       offset += TUXSPEED * delta;
 241
 242       if (offset > 32)
 243         { // We reached the next tile, so we check what to do now
 244           offset -= 32;
 245
 246           WorldMap::SpecialTile* special_tile = worldmap->at_special_tile();
 247           if(special_tile && special_tile->passive_message)
 248             {  // direction and the apply_action_ are opposites, since they "see"
 249                // directions in a different way
 250             if((direction == D_NORTH && special_tile->apply_action_south) ||
 251                (direction == D_SOUTH && special_tile->apply_action_north) ||
 252                (direction == D_WEST && special_tile->apply_action_east) ||
 253                (direction == D_EAST && special_tile->apply_action_west))
 254               {
 255               worldmap->passive_message = special_tile->map_message;
 256               worldmap->passive_message_timer.start(map_message_TIME);
 257               }
 258             }
 259
 260           if (worldmap->at(tile_pos)->getData() & Tile::WORLDMAP_STOP ||
 261              (special_tile && !special_tile->passive_message) ||
 262               worldmap->at_level())
 263             {
 264               if(special_tile && !special_tile->map_message.empty() &&
 265                 !special_tile->passive_message)
 266                 worldmap->passive_message_timer.start(0);
 267               stop();
 268             }
 269           else
 270             {
 271               const Tile* tile = worldmap->at(tile_pos);
 272               if (direction != input_direction)
 273                 {
 274                   // Turn to a new direction
 275                   const Tile* tile = worldmap->at(tile_pos);
 276
 277                   if((tile->getData() & Tile::WORLDMAP_NORTH
 278                       && input_direction == D_NORTH) ||
 279                      (tile->getData() & Tile::WORLDMAP_SOUTH
 280                       && input_direction == D_SOUTH) ||
 281                      (tile->getData() & Tile::WORLDMAP_EAST
 282                       && input_direction == D_EAST) ||
 283                      (tile->getData() & Tile::WORLDMAP_WEST
 284                       && input_direction == D_WEST))
 285                     {  // player has changed direction during auto-movement
 286                       direction = input_direction;
 287                       back_direction = reverse_dir(direction);
 288                     }
 289                   else
 290                     {  // player has changed to impossible tile
 291                       back_direction = reverse_dir(direction);
 292                       stop();
 293                     }
 294                 }
 295               else
 296                 {
 297                 Direction dir = D_NONE;
 298
 299                 if (tile->getData() & Tile::WORLDMAP_NORTH
 300                     && back_direction != D_NORTH)
 301                   dir = D_NORTH;
 302                 else if (tile->getData() & Tile::WORLDMAP_SOUTH
 303                     && back_direction != D_SOUTH)
 304                   dir = D_SOUTH;
 305                 else if (tile->getData() & Tile::WORLDMAP_EAST
 306                     && back_direction != D_EAST)
 307                   dir = D_EAST;
 308                 else if (tile->getData() & Tile::WORLDMAP_WEST
 309                     && back_direction != D_WEST)
 310                   dir = D_WEST;
 311
 312                 if (dir != D_NONE)
 313                   {
 314                   direction = dir;
 315                   input_direction = direction;
 316                   back_direction = reverse_dir(direction);
 317                   }
 318                 else
 319                   {
 320                   // Should never be reached if tiledata is good
 321                   stop();
 322                   return;
 323                   }
 324                 }
 325
 326               // Walk automatically to the next tile
 327               if(direction != D_NONE)
 328                 {
 329                 Vector next_tile;
 330                 if (worldmap->path_ok(direction, tile_pos, &next_tile))
 331                   {
 332                   tile_pos = next_tile;
 333                   }
 334                 else
 335                   {
 336                   puts("Tilemap data is buggy");
 337                   stop();
 338                   }
 339                 }
 340             }
 341         }
 342     }
 343 }
 344
 345 //---------------------------------------------------------------------------
 346
 347 WorldMap::WorldMap()
 348   : tux(0), solids(0)
 349 {
 350   tile_manager = new TileManager("images/worldmap.strf");
 351
 352   tux = new Tux(this);
 353   add_object(tux);
 354
 355   leveldot_green
 356     = new Surface(datadir + "/images/tiles/worldmap/leveldot_green.png", true);
 357   leveldot_red
 358     = new Surface(datadir + "/images/tiles/worldmap/leveldot_red.png", true);
 359   messagedot
 360     = new Surface(datadir + "/images/tiles/worldmap/messagedot.png", true);
 361   teleporterdot
 362     = new Surface(datadir + "/images/tiles/worldmap/teleporterdot.png", true);
 363
 364   name = "<no title>";
 365   music = "salcon.mod";
 366   intro_displayed = false;
 367
 368   total_stats.reset();
 369 }
 370
 371 WorldMap::~WorldMap()
 372 {
 373   clear_objects();
 374   for(SpawnPoints::iterator i = spawn_points.begin();
 375       i != spawn_points.end(); ++i) {
 376     delete *i;
 377   }
 378
 379   delete tile_manager;
 380
 381   delete leveldot_green;
 382   delete leveldot_red;
 383   delete messagedot;
 384   delete teleporterdot;
 385 }
 386
 387 void
 388 WorldMap::add_object(GameObject* object)
 389 {
 390   TileMap* tilemap = dynamic_cast<TileMap*> (object);
 391   if(tilemap != 0 && tilemap->is_solid()) {
 392     solids = tilemap;
 393   }
 394
 395   game_objects.push_back(object);
 396 }
 397
 398 void
 399 WorldMap::clear_objects()
 400 {
 401   for(GameObjects::iterator i = game_objects.begin();
 402       i != game_objects.end(); ++i)
 403     delete *i;
 404   game_objects.clear();
 405   solids = 0;
 406   tux = new Tux(this);
 407   add_object(tux);
 408 }
 409
 410 // Don't forget to set map_filename before calling this
 411 void
 412 WorldMap::load_map()
 413 {
 414   levels_path = FileSystem::dirname(map_filename);
 415
 416   try {
 417     lisp::Parser parser;
 418     std::string filename = get_resource_filename(map_filename);
 419     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 420
 421     const lisp::Lisp* lisp = root->get_lisp("supertux-worldmap");
 422     if(!lisp)
 423       throw new std::runtime_error("file isn't a supertux-worldmap file.");
 424
 425     clear_objects();
 426     lisp::ListIterator iter(lisp);
 427     while(iter.next()) {
 428       if(iter.item() == "tilemap") {
 429         add_object(new TileMap(*(iter.lisp()), tile_manager));
 430       } else if(iter.item() == "background") {
 431         add_object(new Background(*(iter.lisp())));
 432       } else if(iter.item() == "properties") {
 433         const lisp::Lisp* props = iter.lisp();
 434         props->get("name", name);
 435         props->get("music", music);
 436       } else if(iter.item() == "intro-script") {
 437         iter.value()->get(intro_script);
 438       } else if(iter.item() == "spawnpoint") {
 439         SpawnPoint* sp = new SpawnPoint(iter.lisp());
 440         spawn_points.push_back(sp);
 441       } else if(iter.item() == "level") {
 442         parse_level_tile(iter.lisp());
 443       } else if(iter.item() == "special-tile") {
 444         parse_special_tile(iter.lisp());
 445       } else {
 446         std::cerr << "Unknown token '" << iter.item() << "' in worldmap.\n";
 447       }
 448     }
 449     if(solids == 0)
 450       throw std::runtime_error("No solid tilemap specified");
 451
 452     // search for main spawnpoint
 453     for(SpawnPoints::iterator i = spawn_points.begin();
 454         i != spawn_points.end(); ++i) {
 455       SpawnPoint* sp = *i;
 456       if(sp->name == "main") {
 457         Vector p = sp->pos;
 458         tux->set_tile_pos(p);
 459         break;
 460       }
 461     }
 462
 463   } catch(std::exception& e) {
 464     std::stringstream msg;
 465     msg << "Problem when parsing worldmap '" << map_filename << "': " <<
 466       e.what();
 467     throw std::runtime_error(msg.str());
 468   }
 469 }
 470
 471 void
 472 WorldMap::parse_special_tile(const lisp::Lisp* lisp)
 473 {
 474   SpecialTile special_tile;
 475
 476   lisp->get("x", special_tile.pos.x);
 477   lisp->get("y", special_tile.pos.y);
 478   lisp->get("map-message", special_tile.map_message);
 479   special_tile.passive_message = false;
 480   lisp->get("passive-message", special_tile.passive_message);
 481   special_tile.teleport_dest = Vector(-1,-1);
 482   lisp->get("teleport-to-x", special_tile.teleport_dest.x);
 483   lisp->get("teleport-to-y", special_tile.teleport_dest.y);
 484   special_tile.invisible = false;
 485   lisp->get("invisible-tile", special_tile.invisible);
 486
 487   special_tile.apply_action_north = true;
 488   special_tile.apply_action_south = true;
 489   special_tile.apply_action_east = true;
 490   special_tile.apply_action_west = true;
 491
 492   std::string apply_direction;
 493   lisp->get("apply-to-direction", apply_direction);
 494   if(!apply_direction.empty()) {
 495     special_tile.apply_action_north = false;
 496     special_tile.apply_action_south = false;
 497     special_tile.apply_action_east = false;
 498     special_tile.apply_action_west = false;
 499     if(apply_direction.find("north") != std::string::npos)
 500       special_tile.apply_action_north = true;
 501     if(apply_direction.find("south") != std::string::npos)
 502       special_tile.apply_action_south = true;
 503     if(apply_direction.find("east") != std::string::npos)
 504       special_tile.apply_action_east = true;
 505     if(apply_direction.find("west") != std::string::npos)
 506       special_tile.apply_action_west = true;
 507   }
 508
 509   special_tiles.push_back(special_tile);
 510 }
 511
 512 void
 513 WorldMap::parse_level_tile(const lisp::Lisp* level_lisp)
 514 {
 515   Level level;
 516
 517   level.solved = false;
 518
 519   level.north = true;
 520   level.east  = true;
 521   level.south = true;
 522   level.west  = true;
 523
 524   level_lisp->get("extro-script", level.extro_script);
 525   level_lisp->get("next-worldmap", level.next_worldmap);
 526
 527   level.quit_worldmap = false;
 528   level_lisp->get("quit-worldmap", level.quit_worldmap);
 529
 530   level_lisp->get("name", level.name);
 531   level_lisp->get("x", level.pos.x);
 532   level_lisp->get("y", level.pos.y);
 533
 534   level.auto_path = true;
 535   level_lisp->get("auto-path", level.auto_path);
 536
 537   level.vertical_flip = false;
 538   level_lisp->get("vertical-flip", level.vertical_flip);
 539
 540   levels.push_back(level);
 541 }
 542
 543 void
 544 WorldMap::get_level_title(Level& level)
 545 {
 546   /** get special_tile's title */
 547   level.title = "<no title>";
 548
 549   try {
 550     lisp::Parser parser;
 551     std::auto_ptr<lisp::Lisp> root (
 552         parser.parse(get_resource_filename(levels_path + level.name)));
 553
 554     const lisp::Lisp* level_lisp = root->get_lisp("supertux-level");
 555     if(!level_lisp)
 556       return;
 557
 558     level_lisp->get("name", level.title);
 559   } catch(std::exception& e) {
 560     std::cerr << "Problem when reading leveltitle: " << e.what() << "\n";
 561     return;
 562   }
 563 }
 564
 565 void WorldMap::calculate_total_stats()
 566 {
 567   total_stats.reset();
 568   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 569     {
 570     if (i->solved)
 571       {
 572       total_stats += i->statistics;
 573       }
 574     }
 575 }
 576
 577 void
 578 WorldMap::on_escape_press()
 579 {
 580   // Show or hide the menu
 581   if(!Menu::current()) {
 582     Menu::set_current(worldmap_menu);
 583     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 584   } else {
 585     Menu::set_current(0);
 586   }
 587 }
 588
 589 void
 590 WorldMap::get_input()
 591 {
 592   main_controller->update();
 593
 594   SDL_Event event;
 595   while (SDL_PollEvent(&event)) {
 596     if (Menu::current())
 597       Menu::current()->event(event);
 598     main_controller->process_event(event);
 599     if(event.type == SDL_QUIT)
 600       throw std::runtime_error("Received window close");
 601   }
 602 }
 603
 604 Vector
 605 WorldMap::get_next_tile(Vector pos, Direction direction)
 606 {
 607   switch(direction) {
 608     case D_WEST:
 609       pos.x -= 1;
 610       break;
 611     case D_EAST:
 612       pos.x += 1;
 613       break;
 614     case D_NORTH:
 615       pos.y -= 1;
 616       break;
 617     case D_SOUTH:
 618       pos.y += 1;
 619       break;
 620     case D_NONE:
 621       break;
 622   }
 623   return pos;
 624 }
 625
 626 bool
 627 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 628 {
 629   *new_pos = get_next_tile(old_pos, direction);
 630
 631   if (!(new_pos->x >= 0 && new_pos->x < solids->get_width()
 632         && new_pos->y >= 0 && new_pos->y < solids->get_height()))
 633     { // New position is outsite the tilemap
 634       return false;
 635     }
 636   else
 637     { // Check if the tile allows us to go to new_pos
 638       switch(direction)
 639         {
 640         case D_WEST:
 641           return (at(old_pos)->getData() & Tile::WORLDMAP_WEST
 642               && at(*new_pos)->getData() & Tile::WORLDMAP_EAST);
 643
 644         case D_EAST:
 645           return (at(old_pos)->getData() & Tile::WORLDMAP_EAST
 646               && at(*new_pos)->getData() & Tile::WORLDMAP_WEST);
 647
 648         case D_NORTH:
 649           return (at(old_pos)->getData() & Tile::WORLDMAP_NORTH
 650               && at(*new_pos)->getData() & Tile::WORLDMAP_SOUTH);
 651
 652         case D_SOUTH:
 653           return (at(old_pos)->getData() & Tile::WORLDMAP_SOUTH
 654               && at(*new_pos)->getData() & Tile::WORLDMAP_NORTH);
 655
 656         case D_NONE:
 657           assert(!"path_ok() can't work if direction is NONE");
 658         }
 659       return false;
 660     }
 661 }
 662
 663 void
 664 WorldMap::update(float delta)
 665 {
 666   Menu* menu = Menu::current();
 667   if(menu) {
 668     menu->update();
 669
 670     if(menu == worldmap_menu) {
 671       switch (worldmap_menu->check())
 672       {
 673         case MNID_RETURNWORLDMAP: // Return to game
 674           Menu::set_current(0);
 675           break;
 676         case MNID_QUITWORLDMAP: // Quit Worldmap
 677           quit = true;
 678           break;
 679       }
 680     } else if(menu == options_menu) {
 681       process_options_menu();
 682     }
 683
 684     return;
 685   }
 686
 687   // update GameObjects
 688   for(GameObjects::iterator i = game_objects.begin();
 689       i != game_objects.end(); ++i) {
 690     GameObject* object = *i;
 691     object->update(delta);
 692   }
 693   // remove old GameObjects
 694   for(GameObjects::iterator i = game_objects.begin();
 695       i != game_objects.end(); ) {
 696     GameObject* object = *i;
 697     if(!object->is_valid()) {
 698       delete object;
 699       i = game_objects.erase(i);
 700     } else {
 701       ++i;
 702     }
 703   }
 704
 705   bool enter_level = false;
 706   if(main_controller->pressed(Controller::ACTION)
 707       || main_controller->pressed(Controller::JUMP)
 708       || main_controller->pressed(Controller::MENU_SELECT))
 709     enter_level = true;
 710   if(main_controller->pressed(Controller::PAUSE_MENU))
 711     on_escape_press();
 712
 713   if (enter_level && !tux->is_moving())
 714     {
 715       /* Check special tile action */
 716       SpecialTile* special_tile = at_special_tile();
 717       if(special_tile)
 718         {
 719         if (special_tile->teleport_dest != Vector(-1,-1))
 720           {
 721           // TODO: an animation, camera scrolling or a fading would be a nice touch
 722           sound_manager->play_sound("warp");
 723           tux->back_direction = D_NONE;
 724           tux->set_tile_pos(special_tile->teleport_dest);
 725           SDL_Delay(1000);
 726           }
 727         }
 728
 729       /* Check level action */
 730       bool level_finished = true;
 731       Level* level = at_level();
 732       if (!level)
 733         {
 734         std::cout << "No level to enter at: "
 735           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y
 736           << std::endl;
 737         return;
 738         }
 739
 740
 741       if (level->pos == tux->get_tile_pos())
 742         {
 743           PlayerStatus old_player_status = player_status;
 744
 745           // do a shriking fade to the level
 746           shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),
 747                              (level->pos.y*32 + 16 + offset.y)), 500);
 748           GameSession session(get_resource_filename(levels_path + level->name),
 749                               ST_GL_LOAD_LEVEL_FILE, &level->statistics);
 750
 751           switch (session.run())
 752             {
 753             case GameSession::ES_LEVEL_FINISHED:
 754               {
 755                 level_finished = true;
 756                 bool old_level_state = level->solved;
 757                 level->solved = true;
 758
 759                 // deal with statistics
 760                 level->statistics.merge(global_stats);
 761                 calculate_total_stats();
 762
 763                 if (old_level_state != level->solved && level->auto_path)
 764                   { // Try to detect the next direction to which we should walk
 765                     // FIXME: Mostly a hack
 766                     Direction dir = D_NONE;
 767
 768                     const Tile* tile = at(tux->get_tile_pos());
 769
 770                     if (tile->getData() & Tile::WORLDMAP_NORTH
 771                         && tux->back_direction != D_NORTH)
 772                       dir = D_NORTH;
 773                     else if (tile->getData() & Tile::WORLDMAP_SOUTH
 774                         && tux->back_direction != D_SOUTH)
 775                       dir = D_SOUTH;
 776                     else if (tile->getData() & Tile::WORLDMAP_EAST
 777                         && tux->back_direction != D_EAST)
 778                       dir = D_EAST;
 779                     else if (tile->getData() & Tile::WORLDMAP_WEST
 780                         && tux->back_direction != D_WEST)
 781                       dir = D_WEST;
 782
 783                     if (dir != D_NONE)
 784                       {
 785                         tux->set_direction(dir);
 786                       }
 787                   }
 788               }
 789
 790               break;
 791             case GameSession::ES_LEVEL_ABORT:
 792               level_finished = false;
 793               /* In case the player's abort the level, keep it using the old
 794                   status. But the minimum lives and no bonus. */
 795               player_status.coins = old_player_status.coins;
 796               player_status.lives = std::min(old_player_status.lives, player_status.lives);
 797               player_status.bonus = NO_BONUS;
 798
 799               break;
 800             case GameSession::ES_GAME_OVER:
 801               {
 802               level_finished = false;
 803               /* draw an end screen */
 804               /* TODO: in the future, this should make a dialog a la SuperMario, asking
 805               if the player wants to restart the world map with no score and from
 806               level 1 */
 807               char str[80];
 808
 809               DrawingContext context;
 810               context.draw_gradient(Color (200,240,220), Color(200,200,220),
 811                   LAYER_BACKGROUND0);
 812
 813               context.draw_text(blue_text, _("GAMEOVER"),
 814                   Vector(SCREEN_WIDTH/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 815
 816               sprintf(str, _("COINS: %d"), player_status.coins);
 817               context.draw_text(gold_text, str,
 818                   Vector(SCREEN_WIDTH/2, SCREEN_WIDTH - 32), CENTER_ALLIGN,
 819                   LAYER_FOREGROUND1);
 820
 821               total_stats.draw_message_info(context, _("Total Statistics"));
 822
 823               context.do_drawing();
 824
 825               wait_for_event(2.0, 6.0);
 826
 827               quit = true;
 828               player_status.reset();
 829               break;
 830               }
 831             case GameSession::ES_NONE:
 832               assert(false);
 833               // Should never be reached
 834               break;
 835             }
 836
 837           sound_manager->play_music(song);
 838           Menu::set_current(0);
 839           if (!savegame_file.empty())
 840             savegame(savegame_file);
 841         }
 842       /* The porpose of the next checking is that if the player lost
 843          the level (in case there is one), don't show anything */
 844       if(level_finished) {
 845         if (level->extro_script != "") {
 846           ScriptInterpreter* interpreter = new ScriptInterpreter(levels_path);
 847           std::istringstream in(level->extro_script);
 848           interpreter->load_script(in, "level-extro-script");
 849           interpreter->start_script();
 850           add_object(interpreter);
 851         }
 852
 853         if (!level->next_worldmap.empty())
 854           {
 855           // Load given worldmap
 856           loadmap(level->next_worldmap);
 857           }
 858         if (level->quit_worldmap)
 859           quit = true;
 860         }
 861     }
 862   else
 863     {
 864 //      tux->set_direction(input_direction);
 865     }
 866 }
 867
 868 const Tile*
 869 WorldMap::at(Vector p)
 870 {
 871   return solids->get_tile((int) p.x, (int) p.y);
 872 }
 873
 874 WorldMap::Level*
 875 WorldMap::at_level()
 876 {
 877   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 878     {
 879       if (i->pos == tux->get_tile_pos())
 880         return &*i;
 881     }
 882
 883   return 0;
 884 }
 885
 886 WorldMap::SpecialTile*
 887 WorldMap::at_special_tile()
 888 {
 889   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 890     {
 891       if (i->pos == tux->get_tile_pos())
 892         return &*i;
 893     }
 894
 895   return 0;
 896 }
 897
 898 void
 899 WorldMap::draw(DrawingContext& context)
 900 {
 901   for(GameObjects::iterator i = game_objects.begin();
 902       i != game_objects.end(); ++i) {
 903     GameObject* object = *i;
 904     object->draw(context);
 905   }
 906
 907   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 908     {
 909       if (i->solved)
 910         context.draw_surface(leveldot_green,
 911             Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 912       else
 913         context.draw_surface(leveldot_red,
 914             Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 915     }
 916
 917   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 918     {
 919       if(i->invisible)
 920         continue;
 921
 922       if (i->teleport_dest != Vector(-1, -1))
 923         context.draw_surface(teleporterdot,
 924                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 925
 926       else if (!i->map_message.empty() && !i->passive_message)
 927         context.draw_surface(messagedot,
 928                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 929     }
 930
 931   draw_status(context);
 932 }
 933
 934 void
 935 WorldMap::draw_status(DrawingContext& context)
 936 {
 937   context.push_transform();
 938   context.set_translation(Vector(0, 0));
 939
 940   player_status.draw(context);
 941
 942   if (!tux->is_moving())
 943     {
 944       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 945         {
 946           if (i->pos == tux->get_tile_pos())
 947             {
 948               if(i->title == "")
 949                 get_level_title(*i);
 950
 951               context.draw_text(white_text, i->title,
 952                   Vector(SCREEN_WIDTH/2,
 953                          SCREEN_HEIGHT - white_text->get_height() - 30),
 954                   CENTER_ALLIGN, LAYER_FOREGROUND1);
 955
 956               i->statistics.draw_worldmap_info(context);
 957               break;
 958             }
 959         }
 960       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 961         {
 962           if (i->pos == tux->get_tile_pos())
 963             {
 964                /* Display an in-map message in the map, if any as been selected */
 965               if(!i->map_message.empty() && !i->passive_message)
 966                 context.draw_text(gold_text, i->map_message,
 967                     Vector(SCREEN_WIDTH/2,
 968                            SCREEN_HEIGHT - white_text->get_height() - 60),
 969                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 970               break;
 971             }
 972         }
 973     }
 974   /* Display a passive message in the map, if needed */
 975   if(passive_message_timer.check())
 976     context.draw_text(gold_text, passive_message,
 977             Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT - white_text->get_height() - 60),
 978             CENTER_ALLIGN, LAYER_FOREGROUND1);
 979
 980   context.pop_transform();
 981 }
 982
 983 void
 984 WorldMap::display()
 985 {
 986   Menu::set_current(0);
 987
 988   quit = false;
 989
 990   song = sound_manager->load_music(datadir +  "/music/" + music);
 991   sound_manager->play_music(song);
 992
 993   if(!intro_displayed && intro_script != "") {
 994     ScriptInterpreter* interpreter = new ScriptInterpreter(levels_path);
 995     std::istringstream in(intro_script);
 996     interpreter->load_script(in, "worldmap-intro-script");
 997     interpreter->start_script();
 998     add_object(interpreter);
 999
1000     intro_displayed = true;
1001   }
1002
1003   Uint32 lastticks = SDL_GetTicks();
1004   DrawingContext context;
1005   while(!quit) {
1006     Uint32 ticks = SDL_GetTicks();
1007     float elapsed_time = float(ticks - lastticks) / 1000;
1008     global_time += elapsed_time;
1009     lastticks = ticks;
1010
1011     // 40 fps minimum // TODO use same code as in GameSession here
1012     if(elapsed_time > .025)
1013       elapsed_time = .025;
1014
1015     Vector tux_pos = tux->get_pos();
1016     offset.x = tux_pos.x - SCREEN_WIDTH/2;
1017     offset.y = tux_pos.y - SCREEN_HEIGHT/2;
1018
1019     if (offset.x < 0)
1020       offset.x = 0;
1021     if (offset.y < 0)
1022       offset.y = 0;
1023
1024     if (offset.x > solids->get_width()*32 - SCREEN_WIDTH)
1025       offset.x = solids->get_width()*32 - SCREEN_WIDTH;
1026     if (offset.y > solids->get_height()*32 - SCREEN_HEIGHT)
1027       offset.y = solids->get_height()*32 - SCREEN_HEIGHT;
1028
1029     context.push_transform();
1030     context.set_translation(offset);
1031     draw(context);
1032     context.pop_transform();
1033     get_input();
1034     update(elapsed_time);
1035
1036     if(Menu::current()) {
1037       Menu::current()->draw(context);
1038     }
1039
1040     context.do_drawing();
1041   }
1042 }
1043
1044 void
1045 WorldMap::savegame(const std::string& filename)
1046 {
1047   if(filename == "")
1048     return;
1049
1050   std::ofstream file(filename.c_str(), std::ios::out);
1051   lisp::Writer writer(file);
1052
1053   int nb_solved_levels = 0, total_levels = 0;
1054   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
1055     ++total_levels;
1056     if (i->solved)
1057       ++nb_solved_levels;
1058   }
1059   char nb_solved_levels_str[80], total_levels_str[80];
1060   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1061   sprintf(total_levels_str, "%d", total_levels);
1062
1063   writer.write_comment("Worldmap save file");
1064
1065   writer.start_list("supertux-savegame");
1066
1067   writer.write_int("version", 1);
1068   writer.write_string("title",
1069       std::string(name + " - " + nb_solved_levels_str+"/"+total_levels_str));
1070   writer.write_string("map", map_filename);
1071   writer.write_bool("intro-displayed", intro_displayed);
1072
1073   writer.start_list("tux");
1074
1075   writer.write_float("x", tux->get_tile_pos().x);
1076   writer.write_float("y", tux->get_tile_pos().y);
1077   writer.write_string("back", direction_to_string(tux->back_direction));
1078   player_status.write(writer);
1079   writer.write_string("back", direction_to_string(tux->back_direction));
1080
1081   writer.end_list("tux");
1082
1083   writer.start_list("levels");
1084
1085   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1086     {
1087       if (i->solved)
1088         {
1089         writer.start_list("level");
1090
1091         writer.write_string("name", i->name);
1092         writer.write_bool("solved", true);
1093         i->statistics.write(writer);
1094
1095         writer.end_list("level");
1096         }
1097     }
1098
1099   writer.end_list("levels");
1100
1101   writer.end_list("supertux-savegame");
1102 }
1103
1104 void
1105 WorldMap::loadgame(const std::string& filename)
1106 {
1107   std::cout << "loadgame: " << filename << std::endl;
1108   savegame_file = filename;
1109
1110   try {
1111     lisp::Parser parser;
1112     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
1113
1114     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
1115     if(!savegame)
1116       throw std::runtime_error("File is not a supertux-savegame file.");
1117
1118     /* Get the Map filename and then load it before setting level settings */
1119     std::string cur_map_filename = map_filename;
1120     savegame->get("map", map_filename);
1121     load_map();
1122
1123     savegame->get("intro-displayed", intro_displayed);
1124     savegame->get("lives", player_status.lives);
1125     savegame->get("coins", player_status.coins);
1126     savegame->get("max-score-multiplier", player_status.max_score_multiplier);
1127     if (player_status.lives < 0)
1128       player_status.reset();
1129
1130     const lisp::Lisp* tux_lisp = savegame->get_lisp("tux");
1131     if(tux)
1132     {
1133       Vector p;
1134       std::string back_str = "none";
1135
1136       tux_lisp->get("x", p.x);
1137       tux_lisp->get("y", p.y);
1138       tux_lisp->get("back", back_str);
1139       player_status.read(*tux_lisp);
1140
1141       tux->back_direction = string_to_direction(back_str);
1142       tux->set_tile_pos(p);
1143     }
1144
1145     const lisp::Lisp* levels_lisp = savegame->get_lisp("levels");
1146     if(levels_lisp) {
1147       lisp::ListIterator iter(levels_lisp);
1148       while(iter.next()) {
1149         if(iter.item() == "level") {
1150           std::string name;
1151           bool solved = false;
1152
1153           const lisp::Lisp* level = iter.lisp();
1154           level->get("name", name);
1155           level->get("solved", solved);
1156
1157           for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1158           {
1159             if (name == i->name)
1160             {
1161               i->solved = solved;
1162               i->statistics.parse(*level);
1163               break;
1164             }
1165           }
1166         } else {
1167           std::cerr << "Unknown token '" << iter.item()
1168                     << "' in levels block in worldmap.\n";
1169         }
1170       }
1171     }
1172   } catch(std::exception& e) {
1173     std::cerr << "Problem loading game '" << filename << "': " << e.what()
1174               << "\n";
1175     load_map();
1176     player_status.reset();
1177   }
1178
1179   calculate_total_stats();
1180 }
1181
1182 void
1183 WorldMap::loadmap(const std::string& filename)
1184 {
1185   savegame_file = "";
1186   map_filename = filename;
1187   load_map();
1188 }
1189
1190 } // namespace WorldMapNS