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::action(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("data", 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() == "special-tiles") {
 413         parse_special_tiles(iter.lisp());
 414       } else {
 415         std::cerr << "Unknown token '" << iter.item() << "' in worldmap.\n";
 416       }
 417     }
 418
 419     delete tux;
 420     tux = new Tux(this);
 421   } catch(std::exception& e) {
 422     std::stringstream msg;
 423     msg << "Problem when parsing worldmap '" << map_filename << "': " <<
 424       e.what();
 425     throw std::runtime_error(msg.str());
 426   }
 427 }
 428
 429 void
 430 WorldMap::parse_special_tiles(const lisp::Lisp* lisp)
 431 {
 432   lisp::ListIterator iter(lisp);
 433   while(iter.next()) {
 434     if(iter.item() == "special-tile") {
 435       SpecialTile special_tile;
 436
 437       const lisp::Lisp* lisp = iter.lisp();
 438       lisp->get("x", special_tile.pos.x);
 439       lisp->get("y", special_tile.pos.y);
 440       lisp->get("map-message", special_tile.map_message);
 441       special_tile.passive_message = false;
 442       lisp->get("passive-message", special_tile.passive_message);
 443       special_tile.teleport_dest = Vector(-1,-1);
 444       lisp->get("teleport-to-x", special_tile.teleport_dest.x);
 445       lisp->get("teleport-to-y", special_tile.teleport_dest.y);
 446       special_tile.invisible = false;
 447       lisp->get("invisible-tile", special_tile.invisible);
 448
 449       special_tile.apply_action_north = true;
 450       special_tile.apply_action_south = true;
 451       special_tile.apply_action_east = true;
 452       special_tile.apply_action_west = true;
 453
 454       std::string apply_direction;
 455       lisp->get("apply-to-direction", apply_direction);
 456       if(!apply_direction.empty()) {
 457         special_tile.apply_action_north = false;
 458         special_tile.apply_action_south = false;
 459         special_tile.apply_action_east = false;
 460         special_tile.apply_action_west = false;
 461         if(apply_direction.find("north") != std::string::npos)
 462           special_tile.apply_action_north = true;
 463         if(apply_direction.find("south") != std::string::npos)
 464           special_tile.apply_action_south = true;
 465         if(apply_direction.find("east") != std::string::npos)
 466           special_tile.apply_action_east = true;
 467         if(apply_direction.find("west") != std::string::npos)
 468           special_tile.apply_action_west = true;
 469       }
 470
 471       special_tiles.push_back(special_tile);
 472     } else if(iter.item() == "level") {
 473       Level level;
 474
 475       lisp::Lisp* level_lisp = iter.lisp();
 476       level.solved = false;
 477
 478       level.north = true;
 479       level.east  = true;
 480       level.south = true;
 481       level.west  = true;
 482
 483       level_lisp->get("extro-filename", level.extro_filename);
 484       level_lisp->get("next-worldmap", level.next_worldmap);
 485
 486       level.quit_worldmap = false;
 487       level_lisp->get("quit-worldmap", level.quit_worldmap);
 488
 489       level_lisp->get("name", level.name);
 490       level_lisp->get("x", level.pos.x);
 491       level_lisp->get("y", level.pos.y);
 492
 493       level.auto_path = true;
 494       level_lisp->get("auto-path", level.auto_path);
 495
 496       level.vertical_flip = false;
 497       level_lisp->get("vertical-flip", level.vertical_flip);
 498
 499       levels.push_back(level);
 500     } else {
 501       std::cerr << "Unknown token '" << iter.item() <<
 502         "' in worldmap special-tiles list.";
 503     }
 504   }
 505 }
 506
 507 void
 508 WorldMap::get_level_title(Level& level)
 509 {
 510   /** get special_tile's title */
 511   level.title = "<no title>";
 512
 513   try {
 514     lisp::Parser parser;
 515     std::auto_ptr<lisp::Lisp> root (
 516         parser.parse(get_resource_filename(levels_path + level.name)));
 517
 518     const lisp::Lisp* level_lisp = root->get_lisp("supertux-level");
 519     if(!level_lisp)
 520       return;
 521
 522     level_lisp->get("name", level.title);
 523   } catch(std::exception& e) {
 524     std::cerr << "Problem when reading leveltitle: " << e.what() << "\n";
 525     return;
 526   }
 527 }
 528
 529 void WorldMap::calculate_total_stats()
 530 {
 531   total_stats.reset();
 532   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 533     {
 534     if (i->solved)
 535       {
 536       total_stats += i->statistics;
 537       }
 538     }
 539 }
 540
 541 void
 542 WorldMap::on_escape_press()
 543 {
 544   // Show or hide the menu
 545   if(!Menu::current()) {
 546     Menu::set_current(worldmap_menu);
 547     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 548   } else {
 549     Menu::set_current(0);
 550   }
 551 }
 552
 553 void
 554 WorldMap::get_input()
 555 {
 556   main_controller->update();
 557
 558   SDL_Event event;
 559   while (SDL_PollEvent(&event)) {
 560     if (Menu::current())
 561       Menu::current()->event(event);
 562     main_controller->process_event(event);
 563     if(event.type == SDL_QUIT)
 564       throw std::runtime_error("Received window close");
 565   }
 566 }
 567
 568 Vector
 569 WorldMap::get_next_tile(Vector pos, Direction direction)
 570 {
 571   switch(direction) {
 572     case D_WEST:
 573       pos.x -= 1;
 574       break;
 575     case D_EAST:
 576       pos.x += 1;
 577       break;
 578     case D_NORTH:
 579       pos.y -= 1;
 580       break;
 581     case D_SOUTH:
 582       pos.y += 1;
 583       break;
 584     case D_NONE:
 585       break;
 586   }
 587   return pos;
 588 }
 589
 590 bool
 591 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 592 {
 593   *new_pos = get_next_tile(old_pos, direction);
 594
 595   if (!(new_pos->x >= 0 && new_pos->x < width
 596         && new_pos->y >= 0 && new_pos->y < height))
 597     { // New position is outsite the tilemap
 598       return false;
 599     }
 600   else
 601     { // Check if the tile allows us to go to new_pos
 602       switch(direction)
 603         {
 604         case D_WEST:
 605           return (at(old_pos)->getData() & Tile::WORLDMAP_WEST
 606               && at(*new_pos)->getData() & Tile::WORLDMAP_EAST);
 607
 608         case D_EAST:
 609           return (at(old_pos)->getData() & Tile::WORLDMAP_EAST
 610               && at(*new_pos)->getData() & Tile::WORLDMAP_WEST);
 611
 612         case D_NORTH:
 613           return (at(old_pos)->getData() & Tile::WORLDMAP_NORTH
 614               && at(*new_pos)->getData() & Tile::WORLDMAP_SOUTH);
 615
 616         case D_SOUTH:
 617           return (at(old_pos)->getData() & Tile::WORLDMAP_SOUTH
 618               && at(*new_pos)->getData() & Tile::WORLDMAP_NORTH);
 619
 620         case D_NONE:
 621           assert(!"path_ok() can't work if direction is NONE");
 622         }
 623       return false;
 624     }
 625 }
 626
 627 void
 628 WorldMap::update(float delta)
 629 {
 630   Menu* menu = Menu::current();
 631   if(menu) {
 632     menu->action();
 633
 634     if(menu == worldmap_menu) {
 635       switch (worldmap_menu->check())
 636       {
 637         case MNID_RETURNWORLDMAP: // Return to game
 638           Menu::set_current(0);
 639           break;
 640         case MNID_QUITWORLDMAP: // Quit Worldmap
 641           quit = true;
 642           break;
 643       }
 644     } else if(menu == options_menu) {
 645       process_options_menu();
 646     }
 647
 648     return;
 649   }
 650
 651   bool enter_level = false;
 652   if(main_controller->pressed(Controller::ACTION)
 653       || main_controller->pressed(Controller::JUMP)
 654       || main_controller->pressed(Controller::MENU_SELECT))
 655     enter_level = true;
 656   if(main_controller->pressed(Controller::PAUSE_MENU))
 657     on_escape_press();
 658
 659   if (enter_level && !tux->is_moving())
 660     {
 661       /* Check special tile action */
 662       SpecialTile* special_tile = at_special_tile();
 663       if(special_tile)
 664         {
 665         if (special_tile->teleport_dest != Vector(-1,-1))
 666           {
 667           // TODO: an animation, camera scrolling or a fading would be a nice touch
 668           sound_manager->play_sound("warp");
 669           tux->back_direction = D_NONE;
 670           tux->set_tile_pos(special_tile->teleport_dest);
 671           SDL_Delay(1000);
 672           }
 673         }
 674
 675       /* Check level action */
 676       bool level_finished = true;
 677       Level* level = at_level();
 678       if (!level)
 679         {
 680         std::cout << "No level to enter at: "
 681           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y
 682           << std::endl;
 683         return;
 684         }
 685
 686
 687       if (level->pos == tux->get_tile_pos())
 688         {
 689           PlayerStatus old_player_status = player_status;
 690
 691           // do a shriking fade to the level
 692           shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),
 693                              (level->pos.y*32 + 16 + offset.y)), 500);
 694           GameSession session(get_resource_filename(levels_path + level->name),
 695                               ST_GL_LOAD_LEVEL_FILE, &level->statistics);
 696
 697           switch (session.run())
 698             {
 699             case GameSession::ES_LEVEL_FINISHED:
 700               {
 701                 level_finished = true;
 702                 bool old_level_state = level->solved;
 703                 level->solved = true;
 704
 705                 // deal with statistics
 706                 level->statistics.merge(global_stats);
 707                 calculate_total_stats();
 708
 709                 if (old_level_state != level->solved && level->auto_path)
 710                   { // Try to detect the next direction to which we should walk
 711                     // FIXME: Mostly a hack
 712                     Direction dir = D_NONE;
 713
 714                     const Tile* tile = at(tux->get_tile_pos());
 715
 716                     if (tile->getData() & Tile::WORLDMAP_NORTH
 717                         && tux->back_direction != D_NORTH)
 718                       dir = D_NORTH;
 719                     else if (tile->getData() & Tile::WORLDMAP_SOUTH
 720                         && tux->back_direction != D_SOUTH)
 721                       dir = D_SOUTH;
 722                     else if (tile->getData() & Tile::WORLDMAP_EAST
 723                         && tux->back_direction != D_EAST)
 724                       dir = D_EAST;
 725                     else if (tile->getData() & Tile::WORLDMAP_WEST
 726                         && tux->back_direction != D_WEST)
 727                       dir = D_WEST;
 728
 729                     if (dir != D_NONE)
 730                       {
 731                         tux->set_direction(dir);
 732                         //tux->update(delta);
 733                       }
 734                   }
 735               }
 736
 737               break;
 738             case GameSession::ES_LEVEL_ABORT:
 739               level_finished = false;
 740               /* In case the player's abort the level, keep it using the old
 741                   status. But the minimum lives and no bonus. */
 742               player_status.coins = old_player_status.coins;
 743               player_status.lives = std::min(old_player_status.lives, player_status.lives);
 744               player_status.bonus = NO_BONUS;
 745
 746               break;
 747             case GameSession::ES_GAME_OVER:
 748               {
 749               level_finished = false;
 750               /* draw an end screen */
 751               /* TODO: in the future, this should make a dialog a la SuperMario, asking
 752               if the player wants to restart the world map with no score and from
 753               level 1 */
 754               char str[80];
 755
 756               DrawingContext context;
 757               context.draw_gradient(Color (200,240,220), Color(200,200,220),
 758                   LAYER_BACKGROUND0);
 759
 760               context.draw_text(blue_text, _("GAMEOVER"),
 761                   Vector(SCREEN_WIDTH/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 762
 763               sprintf(str, _("COINS: %d"), player_status.coins);
 764               context.draw_text(gold_text, str,
 765                   Vector(SCREEN_WIDTH/2, SCREEN_WIDTH - 32), CENTER_ALLIGN,
 766                   LAYER_FOREGROUND1);
 767
 768               total_stats.draw_message_info(context, _("Total Statistics"));
 769
 770               context.do_drawing();
 771
 772               wait_for_event(2.0, 6.0);
 773
 774               quit = true;
 775               player_status.reset();
 776               break;
 777               }
 778             case GameSession::ES_NONE:
 779               assert(false);
 780               // Should never be reached
 781               break;
 782             }
 783
 784           sound_manager->play_music(song);
 785           Menu::set_current(0);
 786           if (!savegame_file.empty())
 787             savegame(savegame_file);
 788         }
 789       /* The porpose of the next checking is that if the player lost
 790          the level (in case there is one), don't show anything */
 791       if(level_finished) {
 792         if (!level->extro_filename.empty()) {
 793           // Display a text file
 794           std::string filename = levels_path + level->extro_filename;
 795           display_text_file(filename);
 796         }
 797
 798         if (!level->next_worldmap.empty())
 799           {
 800           // Load given worldmap
 801           loadmap(level->next_worldmap);
 802           }
 803         if (level->quit_worldmap)
 804           quit = true;
 805         }
 806     }
 807   else
 808     {
 809       tux->action(delta);
 810 //      tux->set_direction(input_direction);
 811     }
 812 }
 813
 814 const Tile*
 815 WorldMap::at(Vector p)
 816 {
 817   assert(p.x >= 0
 818          && p.x < width
 819          && p.y >= 0
 820          && p.y < height);
 821
 822   int x = int(p.x);
 823   int y = int(p.y);
 824   return tile_manager->get(tilemap[width * y + x]);
 825 }
 826
 827 WorldMap::Level*
 828 WorldMap::at_level()
 829 {
 830   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 831     {
 832       if (i->pos == tux->get_tile_pos())
 833         return &*i;
 834     }
 835
 836   return 0;
 837 }
 838
 839 WorldMap::SpecialTile*
 840 WorldMap::at_special_tile()
 841 {
 842   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 843     {
 844       if (i->pos == tux->get_tile_pos())
 845         return &*i;
 846     }
 847
 848   return 0;
 849 }
 850
 851 void
 852 WorldMap::draw(DrawingContext& context)
 853 {
 854   for(int y = 0; y < height; ++y)
 855     for(int x = 0; x < width; ++x)
 856       {
 857         const Tile* tile = at(Vector(x, y));
 858         tile->draw(context, Vector(x*32, y*32), LAYER_TILES);
 859       }
 860
 861   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 862     {
 863       if (i->solved)
 864         context.draw_surface(leveldot_green,
 865             Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 866       else
 867         context.draw_surface(leveldot_red,
 868             Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 869     }
 870
 871   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 872     {
 873       if(i->invisible)
 874         continue;
 875
 876       if (i->teleport_dest != Vector(-1, -1))
 877         context.draw_surface(teleporterdot,
 878                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 879
 880       else if (!i->map_message.empty() && !i->passive_message)
 881         context.draw_surface(messagedot,
 882                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 883     }
 884
 885   tux->draw(context);
 886   draw_status(context);
 887 }
 888
 889 void
 890 WorldMap::draw_status(DrawingContext& context)
 891 {
 892   context.push_transform();
 893   context.set_translation(Vector(0, 0));
 894
 895   char str[80];
 896   sprintf(str, " %d", total_stats.get_points(SCORE_STAT));
 897
 898   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 899   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 900
 901   sprintf(str, "%d", player_status.coins);
 902   context.draw_text(white_text, _("COINS"), Vector(SCREEN_WIDTH/2 - 16*5, 0),
 903       LEFT_ALLIGN, LAYER_FOREGROUND1);
 904   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2 + (16*5)/2, 0),
 905         LEFT_ALLIGN, LAYER_FOREGROUND1);
 906
 907   if (player_status.lives >= 5)
 908     {
 909       sprintf(str, "%dx", player_status.lives);
 910       context.draw_text(gold_text, str,
 911           Vector(SCREEN_WIDTH - gold_text->get_text_width(str) - tux_life->w, 0),
 912           LEFT_ALLIGN, LAYER_FOREGROUND1);
 913       context.draw_surface(tux_life, Vector(SCREEN_WIDTH -
 914             gold_text->get_text_width("9"), 0), LAYER_FOREGROUND1);
 915     }
 916   else
 917     {
 918       for(int i= 0; i < player_status.lives; ++i)
 919         context.draw_surface(tux_life,
 920             Vector(SCREEN_WIDTH - tux_life->w*4 + (tux_life->w*i), 0),
 921             LAYER_FOREGROUND1);
 922     }
 923   context.draw_text(white_text, _("LIVES"),
 924       Vector(SCREEN_WIDTH - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
 925       LEFT_ALLIGN, LAYER_FOREGROUND1);
 926
 927   if (!tux->is_moving())
 928     {
 929       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 930         {
 931           if (i->pos == tux->get_tile_pos())
 932             {
 933               if(i->title == "")
 934                 get_level_title(*i);
 935
 936               context.draw_text(white_text, i->title,
 937                   Vector(SCREEN_WIDTH/2,
 938                          SCREEN_HEIGHT - white_text->get_height() - 30),
 939                   CENTER_ALLIGN, LAYER_FOREGROUND1);
 940
 941               i->statistics.draw_worldmap_info(context);
 942               break;
 943             }
 944         }
 945       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 946         {
 947           if (i->pos == tux->get_tile_pos())
 948             {
 949                /* Display an in-map message in the map, if any as been selected */
 950               if(!i->map_message.empty() && !i->passive_message)
 951                 context.draw_text(gold_text, i->map_message,
 952                     Vector(SCREEN_WIDTH/2,
 953                            SCREEN_HEIGHT - white_text->get_height() - 60),
 954                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 955               break;
 956             }
 957         }
 958     }
 959   /* Display a passive message in the map, if needed */
 960   if(passive_message_timer.check())
 961     context.draw_text(gold_text, passive_message,
 962             Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT - white_text->get_height() - 60),
 963             CENTER_ALLIGN, LAYER_FOREGROUND1);
 964
 965   context.pop_transform();
 966 }
 967
 968 void
 969 WorldMap::display()
 970 {
 971   Menu::set_current(0);
 972
 973   quit = false;
 974
 975   song = sound_manager->load_music(datadir +  "/music/" + music);
 976   sound_manager->play_music(song);
 977
 978   if(!intro_displayed && intro_filename != "") {
 979     std::string filename = levels_path + intro_filename;
 980     display_text_file(filename);
 981     intro_displayed = true;
 982   }
 983
 984   Uint32 lastticks = SDL_GetTicks();
 985   DrawingContext context;
 986   while(!quit) {
 987     Uint32 ticks = SDL_GetTicks();
 988     float elapsed_time = float(ticks - lastticks) / 1000;
 989     global_time += elapsed_time;
 990     lastticks = ticks;
 991
 992     // 40 fps minimum
 993     if(elapsed_time > .025)
 994       elapsed_time = .025;
 995
 996     Vector tux_pos = tux->get_pos();
 997
 998     offset.x = -tux_pos.x + SCREEN_WIDTH/2;
 999     offset.y = -tux_pos.y + SCREEN_HEIGHT/2;
1000
1001     if (offset.x > 0) offset.x = 0;
1002     if (offset.y > 0) offset.y = 0;
1003
1004     if (offset.x < SCREEN_WIDTH - width*32) offset.x = SCREEN_WIDTH - width*32;
1005     if (offset.y < SCREEN_HEIGHT - height*32) offset.y = SCREEN_HEIGHT - height*32;
1006
1007     context.push_transform();
1008     context.set_translation(-offset);
1009     draw(context);
1010     context.pop_transform();
1011     get_input();
1012     update(elapsed_time);
1013
1014     if(Menu::current()) {
1015       Menu::current()->draw(context);
1016       mouse_cursor->draw(context);
1017     }
1018
1019     context.do_drawing();
1020   }
1021 }
1022
1023 void
1024 WorldMap::savegame(const std::string& filename)
1025 {
1026   if(filename == "")
1027     return;
1028
1029   std::ofstream file(filename.c_str(), std::ios::out);
1030   lisp::Writer writer(file);
1031
1032   int nb_solved_levels = 0, total_levels = 0;
1033   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
1034     ++total_levels;
1035     if (i->solved)
1036       ++nb_solved_levels;
1037   }
1038   char nb_solved_levels_str[80], total_levels_str[80];
1039   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1040   sprintf(total_levels_str, "%d", total_levels);
1041
1042   writer.write_comment("Worldmap save file");
1043
1044   writer.start_list("supertux-savegame");
1045
1046   writer.write_int("version", 1);
1047   writer.write_string("title",
1048       std::string(name + " - " + nb_solved_levels_str+"/"+total_levels_str));
1049   writer.write_string("map", map_filename);
1050   writer.write_bool("intro-displayed", intro_displayed);
1051
1052   writer.start_list("tux");
1053
1054   writer.write_float("x", tux->get_tile_pos().x);
1055   writer.write_float("y", tux->get_tile_pos().y);
1056   writer.write_string("back", direction_to_string(tux->back_direction));
1057   player_status.write(writer);
1058   writer.write_string("back", direction_to_string(tux->back_direction));
1059
1060   writer.end_list("tux");
1061
1062   writer.start_list("levels");
1063
1064   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1065     {
1066       if (i->solved)
1067         {
1068         writer.start_list("level");
1069
1070         writer.write_string("name", i->name);
1071         writer.write_bool("solved", true);
1072         i->statistics.write(writer);
1073
1074         writer.end_list("level");
1075         }
1076     }
1077
1078   writer.end_list("levels");
1079
1080   writer.end_list("supertux-savegame");
1081 }
1082
1083 void
1084 WorldMap::loadgame(const std::string& filename)
1085 {
1086   std::cout << "loadgame: " << filename << std::endl;
1087   savegame_file = filename;
1088
1089   try {
1090     lisp::Parser parser;
1091     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
1092
1093     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
1094     if(!savegame)
1095       throw std::runtime_error("File is not a supertux-savegame file.");
1096
1097     /* Get the Map filename and then load it before setting level settings */
1098     std::string cur_map_filename = map_filename;
1099     savegame->get("map", map_filename);
1100     load_map();
1101
1102     savegame->get("intro-displayed", intro_displayed);
1103     savegame->get("lives", player_status.lives);
1104     savegame->get("coins", player_status.coins);
1105     savegame->get("max-score-multiplier", player_status.max_score_multiplier);
1106     if (player_status.lives < 0)
1107       player_status.reset();
1108
1109     const lisp::Lisp* tux_lisp = savegame->get_lisp("tux");
1110     if(tux)
1111     {
1112       Vector p;
1113       std::string back_str = "none";
1114
1115       tux_lisp->get("x", p.x);
1116       tux_lisp->get("y", p.y);
1117       tux_lisp->get("back", back_str);
1118       player_status.read(*tux_lisp);
1119
1120       tux->back_direction = string_to_direction(back_str);
1121       tux->set_tile_pos(p);
1122     }
1123
1124     const lisp::Lisp* levels_lisp = savegame->get_lisp("levels");
1125     if(levels_lisp) {
1126       lisp::ListIterator iter(levels_lisp);
1127       while(iter.next()) {
1128         if(iter.item() == "level") {
1129           std::string name;
1130           bool solved = false;
1131
1132           const lisp::Lisp* level = iter.lisp();
1133           level->get("name", name);
1134           level->get("solved", solved);
1135
1136           for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1137           {
1138             if (name == i->name)
1139             {
1140               i->solved = solved;
1141               i->statistics.parse(*level);
1142               break;
1143             }
1144           }
1145         } else {
1146           std::cerr << "Unknown token '" << iter.item()
1147             << "' in levels block in worldmap.\n";
1148         }
1149       }
1150     }
1151   } catch(std::exception& e) {
1152     std::cerr << "Problem loading game '" << filename << "': " << e.what()
1153       << "\n";
1154     load_map();
1155     player_status.reset();
1156   }
1157
1158   calculate_total_stats();
1159 }
1160
1161 void
1162 WorldMap::loadmap(const std::string& filename)
1163 {
1164   savegame_file = "";
1165   map_filename = filename;
1166   load_map();
1167 }
1168
1169 } // namespace WorldMapNS