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