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.hpp"
  30 #include "video/surface.hpp"
  31 #include "video/screen.hpp"
  32 #include "video/drawing_context.hpp"
  33 #include "sprite/sprite_manager.hpp"
  34 #include "audio/sound_manager.hpp"
  35 #include "lisp/parser.hpp"
  36 #include "lisp/lisp.hpp"
  37 #include "lisp/list_iterator.hpp"
  38 #include "lisp/writer.hpp"
  39 #include "game_session.hpp"
  40 #include "sector.hpp"
  41 #include "worldmap.hpp"
  42 #include "resources.hpp"
  43 #include "misc.hpp"
  44 #include "player_status.hpp"
  45 #include "textscroller.hpp"
  46 #include "main.hpp"
  47 #include "spawn_point.hpp"
  48 #include "file_system.hpp"
  49 #include "gui/menu.hpp"
  50 #include "gui/mousecursor.hpp"
  51 #include "control/joystickkeyboardcontroller.hpp"
  52 #include "object/background.hpp"
  53 #include "object/tilemap.hpp"
  54 #include "scripting/script_interpreter.hpp"
  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   messagedot = new Surface("images/worldmap/common/messagedot.png", true);
 356   teleporterdot = new Surface("images/worldmap/common/teleporterdot.png", true);
 357
 358   name = "<no title>";
 359   music = "salcon.ogg";
 360   intro_displayed = false;
 361
 362   total_stats.reset();
 363 }
 364
 365 WorldMap::~WorldMap()
 366 {
 367   clear_objects();
 368   for(SpawnPoints::iterator i = spawn_points.begin();
 369       i != spawn_points.end(); ++i) {
 370     delete *i;
 371   }
 372   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
 373     Level& level = *i;
 374     delete level.sprite;
 375   }
 376
 377   delete tile_manager;
 378
 379   delete messagedot;
 380   delete teleporterdot;
 381 }
 382
 383 void
 384 WorldMap::add_object(GameObject* object)
 385 {
 386   TileMap* tilemap = dynamic_cast<TileMap*> (object);
 387   if(tilemap != 0 && tilemap->is_solid()) {
 388     solids = tilemap;
 389   }
 390
 391   game_objects.push_back(object);
 392 }
 393
 394 void
 395 WorldMap::clear_objects()
 396 {
 397   for(GameObjects::iterator i = game_objects.begin();
 398       i != game_objects.end(); ++i)
 399     delete *i;
 400   game_objects.clear();
 401   solids = 0;
 402   tux = new Tux(this);
 403   add_object(tux);
 404 }
 405
 406 // Don't forget to set map_filename before calling this
 407 void
 408 WorldMap::load_map()
 409 {
 410   levels_path = FileSystem::dirname(map_filename);
 411
 412   try {
 413     lisp::Parser parser;
 414     std::auto_ptr<lisp::Lisp> root (parser.parse(map_filename));
 415
 416     const lisp::Lisp* lisp = root->get_lisp("supertux-worldmap");
 417     if(!lisp)
 418       throw std::runtime_error("file isn't a supertux-worldmap file.");
 419
 420     clear_objects();
 421     lisp::ListIterator iter(lisp);
 422     while(iter.next()) {
 423       if(iter.item() == "tilemap") {
 424         add_object(new TileMap(*(iter.lisp()), tile_manager));
 425       } else if(iter.item() == "background") {
 426         add_object(new Background(*(iter.lisp())));
 427       } else if(iter.item() == "properties") {
 428         const lisp::Lisp* props = iter.lisp();
 429         props->get("name", name);
 430         props->get("music", music);
 431       } else if(iter.item() == "intro-script") {
 432         iter.value()->get(intro_script);
 433       } else if(iter.item() == "spawnpoint") {
 434         SpawnPoint* sp = new SpawnPoint(iter.lisp());
 435         spawn_points.push_back(sp);
 436       } else if(iter.item() == "level") {
 437         parse_level_tile(iter.lisp());
 438       } else if(iter.item() == "special-tile") {
 439         parse_special_tile(iter.lisp());
 440       } else {
 441         std::cerr << "Unknown token '" << iter.item() << "' in worldmap.\n";
 442       }
 443     }
 444     if(solids == 0)
 445       throw std::runtime_error("No solid tilemap specified");
 446
 447     // search for main spawnpoint
 448     for(SpawnPoints::iterator i = spawn_points.begin();
 449         i != spawn_points.end(); ++i) {
 450       SpawnPoint* sp = *i;
 451       if(sp->name == "main") {
 452         Vector p = sp->pos;
 453         tux->set_tile_pos(p);
 454         break;
 455       }
 456     }
 457
 458   } catch(std::exception& e) {
 459     std::stringstream msg;
 460     msg << "Problem when parsing worldmap '" << map_filename << "': " <<
 461       e.what();
 462     throw std::runtime_error(msg.str());
 463   }
 464 }
 465
 466 void
 467 WorldMap::parse_special_tile(const lisp::Lisp* lisp)
 468 {
 469   SpecialTile special_tile;
 470
 471   lisp->get("x", special_tile.pos.x);
 472   lisp->get("y", special_tile.pos.y);
 473   lisp->get("map-message", special_tile.map_message);
 474   special_tile.passive_message = false;
 475   lisp->get("passive-message", special_tile.passive_message);
 476   special_tile.teleport_dest = Vector(-1,-1);
 477   lisp->get("teleport-to-x", special_tile.teleport_dest.x);
 478   lisp->get("teleport-to-y", special_tile.teleport_dest.y);
 479   special_tile.invisible = false;
 480   lisp->get("invisible-tile", special_tile.invisible);
 481
 482   special_tile.apply_action_north = true;
 483   special_tile.apply_action_south = true;
 484   special_tile.apply_action_east = true;
 485   special_tile.apply_action_west = true;
 486
 487   std::string apply_direction;
 488   lisp->get("apply-to-direction", apply_direction);
 489   if(!apply_direction.empty()) {
 490     special_tile.apply_action_north = false;
 491     special_tile.apply_action_south = false;
 492     special_tile.apply_action_east = false;
 493     special_tile.apply_action_west = false;
 494     if(apply_direction.find("north") != std::string::npos)
 495       special_tile.apply_action_north = true;
 496     if(apply_direction.find("south") != std::string::npos)
 497       special_tile.apply_action_south = true;
 498     if(apply_direction.find("east") != std::string::npos)
 499       special_tile.apply_action_east = true;
 500     if(apply_direction.find("west") != std::string::npos)
 501       special_tile.apply_action_west = true;
 502   }
 503
 504   special_tiles.push_back(special_tile);
 505 }
 506
 507 void
 508 WorldMap::parse_level_tile(const lisp::Lisp* level_lisp)
 509 {
 510   Level level;
 511
 512   level.solved = false;
 513
 514   level.north = true;
 515   level.east  = true;
 516   level.south = true;
 517   level.west  = true;
 518
 519   std::string sprite = "images/worldmap/common/leveldot.sprite";
 520   level_lisp->get("sprite", sprite);
 521   level.sprite = sprite_manager->create(sprite);
 522
 523   level_lisp->get("extro-script", level.extro_script);
 524   level_lisp->get("next-worldmap", level.next_worldmap);
 525
 526   level.quit_worldmap = false;
 527   level_lisp->get("quit-worldmap", level.quit_worldmap);
 528
 529   level_lisp->get("name", level.name);
 530   level_lisp->get("x", level.pos.x);
 531   level_lisp->get("y", level.pos.y);
 532
 533   level.auto_path = true;
 534   level_lisp->get("auto-path", level.auto_path);
 535
 536   level.vertical_flip = false;
 537   level_lisp->get("vertical-flip", level.vertical_flip);
 538
 539   levels.push_back(level);
 540 }
 541
 542 void
 543 WorldMap::get_level_title(Level& level)
 544 {
 545   /** get special_tile's title */
 546   level.title = "<no title>";
 547
 548   try {
 549     lisp::Parser parser;
 550     std::auto_ptr<lisp::Lisp> root (parser.parse(levels_path + level.name));
 551
 552     const lisp::Lisp* level_lisp = root->get_lisp("supertux-level");
 553     if(!level_lisp)
 554       return;
 555
 556     level_lisp->get("name", level.title);
 557   } catch(std::exception& e) {
 558     std::cerr << "Problem when reading leveltitle: " << e.what() << "\n";
 559     return;
 560   }
 561 }
 562
 563 void WorldMap::calculate_total_stats()
 564 {
 565   total_stats.reset();
 566   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 567     {
 568     if (i->solved)
 569       {
 570       total_stats += i->statistics;
 571       }
 572     }
 573 }
 574
 575 void
 576 WorldMap::on_escape_press()
 577 {
 578   // Show or hide the menu
 579   if(!Menu::current()) {
 580     Menu::set_current(worldmap_menu);
 581     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 582   } else {
 583     Menu::set_current(0);
 584   }
 585 }
 586
 587 void
 588 WorldMap::get_input()
 589 {
 590   main_controller->update();
 591
 592   SDL_Event event;
 593   while (SDL_PollEvent(&event)) {
 594     if (Menu::current())
 595       Menu::current()->event(event);
 596     main_controller->process_event(event);
 597     if(event.type == SDL_QUIT)
 598       throw std::runtime_error("Received window close");
 599   }
 600 }
 601
 602 Vector
 603 WorldMap::get_next_tile(Vector pos, Direction direction)
 604 {
 605   switch(direction) {
 606     case D_WEST:
 607       pos.x -= 1;
 608       break;
 609     case D_EAST:
 610       pos.x += 1;
 611       break;
 612     case D_NORTH:
 613       pos.y -= 1;
 614       break;
 615     case D_SOUTH:
 616       pos.y += 1;
 617       break;
 618     case D_NONE:
 619       break;
 620   }
 621   return pos;
 622 }
 623
 624 bool
 625 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 626 {
 627   *new_pos = get_next_tile(old_pos, direction);
 628
 629   if (!(new_pos->x >= 0 && new_pos->x < solids->get_width()
 630         && new_pos->y >= 0 && new_pos->y < solids->get_height()))
 631     { // New position is outsite the tilemap
 632       return false;
 633     }
 634   else
 635     { // Check if the tile allows us to go to new_pos
 636       switch(direction)
 637         {
 638         case D_WEST:
 639           return (at(old_pos)->getData() & Tile::WORLDMAP_WEST
 640               && at(*new_pos)->getData() & Tile::WORLDMAP_EAST);
 641
 642         case D_EAST:
 643           return (at(old_pos)->getData() & Tile::WORLDMAP_EAST
 644               && at(*new_pos)->getData() & Tile::WORLDMAP_WEST);
 645
 646         case D_NORTH:
 647           return (at(old_pos)->getData() & Tile::WORLDMAP_NORTH
 648               && at(*new_pos)->getData() & Tile::WORLDMAP_SOUTH);
 649
 650         case D_SOUTH:
 651           return (at(old_pos)->getData() & Tile::WORLDMAP_SOUTH
 652               && at(*new_pos)->getData() & Tile::WORLDMAP_NORTH);
 653
 654         case D_NONE:
 655           assert(!"path_ok() can't work if direction is NONE");
 656         }
 657       return false;
 658     }
 659 }
 660
 661 void
 662 WorldMap::update(float delta)
 663 {
 664   Menu* menu = Menu::current();
 665   if(menu) {
 666     menu->update();
 667
 668     if(menu == worldmap_menu) {
 669       switch (worldmap_menu->check())
 670       {
 671         case MNID_RETURNWORLDMAP: // Return to game
 672           Menu::set_current(0);
 673           break;
 674         case MNID_QUITWORLDMAP: // Quit Worldmap
 675           quit = true;
 676           break;
 677       }
 678     } else if(menu == options_menu) {
 679       process_options_menu();
 680     }
 681
 682     return;
 683   }
 684
 685   // update GameObjects
 686   for(GameObjects::iterator i = game_objects.begin();
 687       i != game_objects.end(); ++i) {
 688     GameObject* object = *i;
 689     object->update(delta);
 690   }
 691   // remove old GameObjects
 692   for(GameObjects::iterator i = game_objects.begin();
 693       i != game_objects.end(); ) {
 694     GameObject* object = *i;
 695     if(!object->is_valid()) {
 696       delete object;
 697       i = game_objects.erase(i);
 698     } else {
 699       ++i;
 700     }
 701   }
 702
 703   bool enter_level = false;
 704   if(main_controller->pressed(Controller::ACTION)
 705       || main_controller->pressed(Controller::JUMP)
 706       || main_controller->pressed(Controller::MENU_SELECT))
 707     enter_level = true;
 708   if(main_controller->pressed(Controller::PAUSE_MENU))
 709     on_escape_press();
 710
 711   if (enter_level && !tux->is_moving())
 712     {
 713       /* Check special tile action */
 714       SpecialTile* special_tile = at_special_tile();
 715       if(special_tile)
 716         {
 717         if (special_tile->teleport_dest != Vector(-1,-1))
 718           {
 719           // TODO: an animation, camera scrolling or a fading would be a nice touch
 720           sound_manager->play("sounds/warp.wav");
 721           tux->back_direction = D_NONE;
 722           tux->set_tile_pos(special_tile->teleport_dest);
 723           SDL_Delay(1000);
 724           }
 725         }
 726
 727       /* Check level action */
 728       bool level_finished = true;
 729       Level* level = at_level();
 730       if (!level)
 731         {
 732         std::cout << "No level to enter at: "
 733           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y
 734           << std::endl;
 735         return;
 736         }
 737
 738
 739       if (level->pos == tux->get_tile_pos())
 740         {
 741           sound_manager->stop_music();
 742           PlayerStatus old_player_status;
 743           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(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                 level->sprite->set_action("solved");
 759
 760                 // deal with statistics
 761                 level->statistics.merge(global_stats);
 762                 calculate_total_stats();
 763
 764                 if (old_level_state != level->solved && level->auto_path)
 765                   { // Try to detect the next direction to which we should walk
 766                     // FIXME: Mostly a hack
 767                     Direction dir = D_NONE;
 768
 769                     const Tile* tile = at(tux->get_tile_pos());
 770
 771                     if (tile->getData() & Tile::WORLDMAP_NORTH
 772                         && tux->back_direction != D_NORTH)
 773                       dir = D_NORTH;
 774                     else if (tile->getData() & Tile::WORLDMAP_SOUTH
 775                         && tux->back_direction != D_SOUTH)
 776                       dir = D_SOUTH;
 777                     else if (tile->getData() & Tile::WORLDMAP_EAST
 778                         && tux->back_direction != D_EAST)
 779                       dir = D_EAST;
 780                     else if (tile->getData() & Tile::WORLDMAP_WEST
 781                         && tux->back_direction != D_WEST)
 782                       dir = D_WEST;
 783
 784                     if (dir != D_NONE)
 785                       {
 786                         tux->set_direction(dir);
 787                       }
 788                   }
 789               }
 790
 791               break;
 792             case GameSession::ES_LEVEL_ABORT:
 793               level_finished = false;
 794               /* In case the player's abort the level, keep it using the old
 795                   status. But the minimum lives and no bonus. */
 796               player_status->coins = old_player_status.coins;
 797               player_status->lives = std::min(old_player_status.lives, player_status->lives);
 798               player_status->bonus = NO_BONUS;
 799
 800               break;
 801             case GameSession::ES_GAME_OVER:
 802               {
 803               level_finished = false;
 804               /* draw an end screen */
 805               /* TODO: in the future, this should make a dialog a la SuperMario, asking
 806               if the player wants to restart the world map with no score and from
 807               level 1 */
 808               char str[80];
 809
 810               DrawingContext context;
 811               context.draw_gradient(Color (200,240,220), Color(200,200,220),
 812                   LAYER_BACKGROUND0);
 813
 814               context.draw_text(blue_text, _("GAMEOVER"),
 815                   Vector(SCREEN_WIDTH/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 816
 817               sprintf(str, _("COINS: %d"), player_status->coins);
 818               context.draw_text(gold_text, str,
 819                   Vector(SCREEN_WIDTH/2, SCREEN_WIDTH - 32), CENTER_ALLIGN,
 820                   LAYER_FOREGROUND1);
 821
 822               total_stats.draw_message_info(context, _("Total Statistics"));
 823
 824               context.do_drawing();
 825
 826               wait_for_event(2.0, 6.0);
 827
 828               quit = true;
 829               player_status->reset();
 830               break;
 831               }
 832             case GameSession::ES_NONE:
 833               assert(false);
 834               // Should never be reached
 835               break;
 836             }
 837
 838           sound_manager->play_music(std::string("music/") + music);
 839           Menu::set_current(0);
 840           if (!savegame_file.empty())
 841             savegame(savegame_file);
 842         }
 843       /* The porpose of the next checking is that if the player lost
 844          the level (in case there is one), don't show anything */
 845       if(level_finished) {
 846         if (level->extro_script != "") {
 847           try {
 848             std::auto_ptr<ScriptInterpreter> interpreter
 849               (new ScriptInterpreter(levels_path));
 850             std::istringstream in(level->extro_script);
 851             interpreter->run_script(in, "level-extro-script");
 852             add_object(interpreter.release());
 853           } catch(std::exception& e) {
 854             std::cerr << "Couldn't run level-extro-script:" << e.what() << "\n";
 855           }
 856         }
 857
 858         if (!level->next_worldmap.empty())
 859           {
 860           // Load given worldmap
 861           loadmap(level->next_worldmap);
 862           }
 863         if (level->quit_worldmap)
 864           quit = true;
 865         }
 866     }
 867   else
 868     {
 869 //      tux->set_direction(input_direction);
 870     }
 871 }
 872
 873 const Tile*
 874 WorldMap::at(Vector p)
 875 {
 876   return solids->get_tile((int) p.x, (int) p.y);
 877 }
 878
 879 WorldMap::Level*
 880 WorldMap::at_level()
 881 {
 882   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 883     {
 884       if (i->pos == tux->get_tile_pos())
 885         return &*i;
 886     }
 887
 888   return 0;
 889 }
 890
 891 WorldMap::SpecialTile*
 892 WorldMap::at_special_tile()
 893 {
 894   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 895     {
 896       if (i->pos == tux->get_tile_pos())
 897         return &*i;
 898     }
 899
 900   return 0;
 901 }
 902
 903 void
 904 WorldMap::draw(DrawingContext& context)
 905 {
 906   for(GameObjects::iterator i = game_objects.begin();
 907       i != game_objects.end(); ++i) {
 908     GameObject* object = *i;
 909     object->draw(context);
 910   }
 911
 912   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 913     {
 914       const Level& level = *i;
 915       level.sprite->draw(context, level.pos*32 + Vector(16, 16), LAYER_TILES+1);
 916     }
 917
 918   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 919     {
 920       if(i->invisible)
 921         continue;
 922
 923       if (i->teleport_dest != Vector(-1, -1))
 924         context.draw_surface(teleporterdot,
 925                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 926
 927       else if (!i->map_message.empty() && !i->passive_message)
 928         context.draw_surface(messagedot,
 929                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 930     }
 931
 932   draw_status(context);
 933 }
 934
 935 void
 936 WorldMap::draw_status(DrawingContext& context)
 937 {
 938   context.push_transform();
 939   context.set_translation(Vector(0, 0));
 940
 941   player_status->draw(context);
 942
 943   if (!tux->is_moving())
 944     {
 945       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 946         {
 947           if (i->pos == tux->get_tile_pos())
 948             {
 949               if(i->title == "")
 950                 get_level_title(*i);
 951
 952               context.draw_text(white_text, i->title,
 953                   Vector(SCREEN_WIDTH/2,
 954                          SCREEN_HEIGHT - white_text->get_height() - 30),
 955                   CENTER_ALLIGN, LAYER_FOREGROUND1);
 956
 957               i->statistics.draw_worldmap_info(context);
 958               break;
 959             }
 960         }
 961       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 962         {
 963           if (i->pos == tux->get_tile_pos())
 964             {
 965                /* Display an in-map message in the map, if any as been selected */
 966               if(!i->map_message.empty() && !i->passive_message)
 967                 context.draw_text(gold_text, i->map_message,
 968                     Vector(SCREEN_WIDTH/2,
 969                            SCREEN_HEIGHT - white_text->get_height() - 60),
 970                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 971               break;
 972             }
 973         }
 974     }
 975   /* Display a passive message in the map, if needed */
 976   if(passive_message_timer.started())
 977     context.draw_text(gold_text, passive_message,
 978             Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT - white_text->get_height() - 60),
 979             CENTER_ALLIGN, LAYER_FOREGROUND1);
 980
 981   context.pop_transform();
 982 }
 983
 984 void
 985 WorldMap::display()
 986 {
 987   Menu::set_current(0);
 988
 989   quit = false;
 990
 991   sound_manager->play_music(std::string("music/") + music);
 992
 993   if(!intro_displayed && intro_script != "") {
 994     try {
 995       std::auto_ptr<ScriptInterpreter> interpreter
 996         (new ScriptInterpreter(levels_path));
 997       std::istringstream in(intro_script);
 998       interpreter->run_script(in, "worldmap-intro-script");
 999       add_object(interpreter.release());
1000     } catch(std::exception& e) {
1001       std::cerr << "Couldn't execute worldmap-intro-script: "
1002         << e.what() << "\n";
1003     }
1004
1005     intro_displayed = true;
1006   }
1007
1008   Uint32 lastticks = SDL_GetTicks();
1009   DrawingContext context;
1010   while(!quit) {
1011     Uint32 ticks = SDL_GetTicks();
1012     float elapsed_time = float(ticks - lastticks) / 1000;
1013     game_time += elapsed_time;
1014     lastticks = ticks;
1015
1016     // 40 fps minimum // TODO use same code as in GameSession here
1017     if(elapsed_time > .025)
1018       elapsed_time = .025;
1019
1020     Vector tux_pos = tux->get_pos();
1021     offset.x = tux_pos.x - SCREEN_WIDTH/2;
1022     offset.y = tux_pos.y - SCREEN_HEIGHT/2;
1023
1024     if (offset.x < 0)
1025       offset.x = 0;
1026     if (offset.y < 0)
1027       offset.y = 0;
1028
1029     if (offset.x > solids->get_width()*32 - SCREEN_WIDTH)
1030       offset.x = solids->get_width()*32 - SCREEN_WIDTH;
1031     if (offset.y > solids->get_height()*32 - SCREEN_HEIGHT)
1032       offset.y = solids->get_height()*32 - SCREEN_HEIGHT;
1033
1034     context.push_transform();
1035     context.set_translation(offset);
1036     draw(context);
1037     context.pop_transform();
1038     get_input();
1039     update(elapsed_time);
1040     sound_manager->update();
1041
1042     if(Menu::current()) {
1043       Menu::current()->draw(context);
1044     }
1045
1046     context.do_drawing();
1047   }
1048 }
1049
1050 void
1051 WorldMap::savegame(const std::string& filename)
1052 {
1053   if(filename == "")
1054     return;
1055
1056   lisp::Writer writer(filename);
1057
1058   int nb_solved_levels = 0, total_levels = 0;
1059   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
1060     ++total_levels;
1061     if (i->solved)
1062       ++nb_solved_levels;
1063   }
1064   char nb_solved_levels_str[80], total_levels_str[80];
1065   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1066   sprintf(total_levels_str, "%d", total_levels);
1067
1068   writer.write_comment("Worldmap save file");
1069
1070   writer.start_list("supertux-savegame");
1071
1072   writer.write_int("version", 1);
1073   writer.write_string("title",
1074       std::string(name + " - " + nb_solved_levels_str+"/"+total_levels_str));
1075   writer.write_string("map", map_filename);
1076   writer.write_bool("intro-displayed", intro_displayed);
1077
1078   writer.start_list("tux");
1079
1080   writer.write_float("x", tux->get_tile_pos().x);
1081   writer.write_float("y", tux->get_tile_pos().y);
1082   writer.write_string("back", direction_to_string(tux->back_direction));
1083   player_status->write(writer);
1084   writer.write_string("back", direction_to_string(tux->back_direction));
1085
1086   writer.end_list("tux");
1087
1088   writer.start_list("levels");
1089
1090   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1091     {
1092       if (i->solved)
1093         {
1094         writer.start_list("level");
1095
1096         writer.write_string("name", i->name);
1097         writer.write_bool("solved", true);
1098         i->statistics.write(writer);
1099
1100         writer.end_list("level");
1101         }
1102     }
1103
1104   writer.end_list("levels");
1105
1106   writer.end_list("supertux-savegame");
1107 }
1108
1109 void
1110 WorldMap::loadgame(const std::string& filename)
1111 {
1112   std::cout << "loadgame: " << filename << std::endl;
1113   savegame_file = filename;
1114
1115   try {
1116     lisp::Parser parser;
1117     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
1118
1119     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
1120     if(!savegame)
1121       throw std::runtime_error("File is not a supertux-savegame file.");
1122
1123     /* Get the Map filename and then load it before setting level settings */
1124     std::string cur_map_filename = map_filename;
1125     savegame->get("map", map_filename);
1126     load_map();
1127
1128     savegame->get("intro-displayed", intro_displayed);
1129     savegame->get("lives", player_status->lives);
1130     savegame->get("coins", player_status->coins);
1131     savegame->get("max-score-multiplier", player_status->max_score_multiplier);
1132     if (player_status->lives < 0)
1133       player_status->reset();
1134
1135     const lisp::Lisp* tux_lisp = savegame->get_lisp("tux");
1136     if(tux)
1137     {
1138       Vector p;
1139       std::string back_str = "none";
1140
1141       tux_lisp->get("x", p.x);
1142       tux_lisp->get("y", p.y);
1143       tux_lisp->get("back", back_str);
1144       player_status->read(*tux_lisp);
1145
1146       tux->back_direction = string_to_direction(back_str);
1147       tux->set_tile_pos(p);
1148     }
1149
1150     const lisp::Lisp* levels_lisp = savegame->get_lisp("levels");
1151     if(levels_lisp) {
1152       lisp::ListIterator iter(levels_lisp);
1153       while(iter.next()) {
1154         if(iter.item() == "level") {
1155           std::string name;
1156           bool solved = false;
1157
1158           const lisp::Lisp* level = iter.lisp();
1159           level->get("name", name);
1160           level->get("solved", solved);
1161
1162           for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1163           {
1164             if (name == i->name)
1165             {
1166               i->solved = solved;
1167               i->sprite->set_action(solved ? "solved" : "default");
1168               i->statistics.parse(*level);
1169               break;
1170             }
1171           }
1172         } else {
1173           std::cerr << "Unknown token '" << iter.item()
1174                     << "' in levels block in worldmap.\n";
1175         }
1176       }
1177     }
1178   } catch(std::exception& e) {
1179     std::cerr << "Problem loading game '" << filename << "': " << e.what()
1180               << "\n";
1181     load_map();
1182     player_status->reset();
1183   }
1184
1185   calculate_total_stats();
1186 }
1187
1188 void
1189 WorldMap::loadmap(const std::string& filename)
1190 {
1191   savegame_file = "";
1192   map_filename = filename;
1193   load_map();
1194 }
1195
1196 } // namespace WorldMapNS