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 "app/globals.h"
  30 #include "app/gettext.h"
  31 #include "app/setup.h"
  32 #include "video/surface.h"
  33 #include "video/screen.h"
  34 #include "video/drawing_context.h"
  35 #include "special/frame_rate.h"
  36 #include "special/sprite_manager.h"
  37 #include "audio/sound_manager.h"
  38 #include "lisp/parser.h"
  39 #include "lisp/lisp.h"
  40 #include "lisp/list_iterator.h"
  41 #include "lisp/writer.h"
  42 #include "gameloop.h"
  43 #include "sector.h"
  44 #include "worldmap.h"
  45 #include "resources.h"
  46 #include "misc.h"
  47 #include "player_status.h"
  48 #include "textscroller.h"
  49
  50 #define map_message_TIME 2.8
  51
  52 Menu* worldmap_menu  = 0;
  53
  54 static const float TUXSPEED = 200;
  55
  56 namespace WorldMapNS {
  57
  58 Direction reverse_dir(Direction direction)
  59 {
  60   switch(direction)
  61     {
  62     case D_WEST:
  63       return D_EAST;
  64     case D_EAST:
  65       return D_WEST;
  66     case D_NORTH:
  67       return D_SOUTH;
  68     case D_SOUTH:
  69       return D_NORTH;
  70     case D_NONE:
  71       return D_NONE;
  72     }
  73   return D_NONE;
  74 }
  75
  76 std::string
  77 direction_to_string(Direction direction)
  78 {
  79   switch(direction)
  80     {
  81     case D_WEST:
  82       return "west";
  83     case D_EAST:
  84       return "east";
  85     case D_NORTH:
  86       return "north";
  87     case D_SOUTH:
  88       return "south";
  89     default:
  90       return "none";
  91     }
  92 }
  93
  94 Direction
  95 string_to_direction(const std::string& directory)
  96 {
  97   if (directory == "west")
  98     return D_WEST;
  99   else if (directory == "east")
 100     return D_EAST;
 101   else if (directory == "north")
 102     return D_NORTH;
 103   else if (directory == "south")
 104     return D_SOUTH;
 105   else
 106     return D_NONE;
 107 }
 108
 109 //---------------------------------------------------------------------------
 110
 111 Tux::Tux(WorldMap* worldmap_)
 112   : worldmap(worldmap_)
 113 {
 114   tux_sprite = sprite_manager->create("worldmaptux");
 115
 116   offset = 0;
 117   moving = false;
 118   tile_pos.x = worldmap->get_start_x();
 119   tile_pos.y = worldmap->get_start_y();
 120   direction = D_NONE;
 121   input_direction = D_NONE;
 122 }
 123
 124 Tux::~Tux()
 125 {
 126   delete tux_sprite;
 127 }
 128
 129 void
 130 Tux::draw(DrawingContext& context)
 131 {
 132   switch (player_status.bonus) {
 133     case GROWUP_BONUS:
 134       tux_sprite->set_action("large");
 135       break;
 136     case FIRE_BONUS:
 137       tux_sprite->set_action("fire");
 138       break;
 139     case NO_BONUS:
 140       tux_sprite->set_action("small");
 141       break;
 142     default:
 143 #ifdef DBEUG
 144       std::cerr << "Bonus type not handled in worldmap.\n";
 145 #endif
 146       tux_sprite->set_action("large");
 147       break;
 148   }
 149
 150   tux_sprite->draw(context, get_pos(), LAYER_OBJECTS);
 151 }
 152
 153
 154 Vector
 155 Tux::get_pos()
 156 {
 157   float x = tile_pos.x * 32;
 158   float y = tile_pos.y * 32;
 159
 160   switch(direction)
 161     {
 162     case D_WEST:
 163       x -= offset - 32;
 164       break;
 165     case D_EAST:
 166       x += offset - 32;
 167       break;
 168     case D_NORTH:
 169       y -= offset - 32;
 170       break;
 171     case D_SOUTH:
 172       y += offset - 32;
 173       break;
 174     case D_NONE:
 175       break;
 176     }
 177
 178   return Vector((int)x, (int)y);
 179 }
 180
 181 void
 182 Tux::stop()
 183 {
 184   offset = 0;
 185   direction = D_NONE;
 186   input_direction = D_NONE;
 187   moving = false;
 188 }
 189
 190 void
 191 Tux::set_direction(Direction dir)
 192 {
 193 input_direction = dir;
 194 }
 195
 196 void
 197 Tux::action(float delta)
 198 {
 199   if (!moving)
 200     {
 201       if (input_direction != D_NONE)
 202         {
 203           WorldMap::Level* level = worldmap->at_level();
 204
 205           // We got a new direction, so lets start walking when possible
 206           Vector next_tile;
 207           if ((!level || level->solved)
 208               && worldmap->path_ok(input_direction, tile_pos, &next_tile))
 209             {
 210               tile_pos = next_tile;
 211               moving = true;
 212               direction = input_direction;
 213               back_direction = reverse_dir(direction);
 214             }
 215           else if (input_direction == back_direction)
 216             {
 217               moving = true;
 218               direction = input_direction;
 219               tile_pos = worldmap->get_next_tile(tile_pos, direction);
 220               back_direction = reverse_dir(direction);
 221             }
 222         }
 223     }
 224   else
 225     {
 226       // Let tux walk
 227       offset += TUXSPEED * delta;
 228
 229       if (offset > 32)
 230         { // We reached the next tile, so we check what to do now
 231           offset -= 32;
 232
 233           WorldMap::SpecialTile* special_tile = worldmap->at_special_tile();
 234           if(special_tile && special_tile->passive_message)
 235             {  // direction and the apply_action_ are opposites, since they "see"
 236                // directions in a different way
 237             if((direction == D_NORTH && special_tile->apply_action_south) ||
 238                (direction == D_SOUTH && special_tile->apply_action_north) ||
 239                (direction == D_WEST && special_tile->apply_action_east) ||
 240                (direction == D_EAST && special_tile->apply_action_west))
 241               {
 242               worldmap->passive_message = special_tile->map_message;
 243               worldmap->passive_message_timer.start(map_message_TIME);
 244               }
 245             }
 246
 247           if (worldmap->at(tile_pos)->getData() & Tile::WORLDMAP_STOP ||
 248              (special_tile && !special_tile->passive_message) ||
 249               worldmap->at_level())
 250             {
 251               if(special_tile && !special_tile->map_message.empty() &&
 252                 !special_tile->passive_message)
 253                 worldmap->passive_message_timer.start(0);
 254               stop();
 255             }
 256           else
 257             {
 258               const Tile* tile = worldmap->at(tile_pos);
 259               if (direction != input_direction)
 260                 {
 261                   // Turn to a new direction
 262                   const Tile* tile = worldmap->at(tile_pos);
 263
 264                   if((tile->getData() & Tile::WORLDMAP_NORTH
 265                       && input_direction == D_NORTH) ||
 266                      (tile->getData() & Tile::WORLDMAP_SOUTH
 267                       && input_direction == D_SOUTH) ||
 268                      (tile->getData() & Tile::WORLDMAP_EAST
 269                       && input_direction == D_EAST) ||
 270                      (tile->getData() & Tile::WORLDMAP_WEST
 271                       && input_direction == D_WEST))
 272                     {  // player has changed direction during auto-movement
 273                       direction = input_direction;
 274                       back_direction = reverse_dir(direction);
 275                     }
 276                   else
 277                     {  // player has changed to impossible tile
 278                       back_direction = reverse_dir(direction);
 279                       stop();
 280                     }
 281                 }
 282               else
 283                 {
 284                 Direction dir = D_NONE;
 285
 286                 if (tile->getData() & Tile::WORLDMAP_NORTH
 287                     && back_direction != D_NORTH)
 288                   dir = D_NORTH;
 289                 else if (tile->getData() & Tile::WORLDMAP_SOUTH
 290                     && back_direction != D_SOUTH)
 291                   dir = D_SOUTH;
 292                 else if (tile->getData() & Tile::WORLDMAP_EAST
 293                     && back_direction != D_EAST)
 294                   dir = D_EAST;
 295                 else if (tile->getData() & Tile::WORLDMAP_WEST
 296                     && back_direction != D_WEST)
 297                   dir = D_WEST;
 298
 299                 if (dir != D_NONE)
 300                   {
 301                   direction = dir;
 302                   input_direction = direction;
 303                   back_direction = reverse_dir(direction);
 304                   }
 305                 else
 306                   {
 307                   // Should never be reached if tiledata is good
 308                   stop();
 309                   return;
 310                   }
 311                 }
 312
 313               // Walk automatically to the next tile
 314               if(direction != D_NONE)
 315                 {
 316                 Vector next_tile;
 317                 if (worldmap->path_ok(direction, tile_pos, &next_tile))
 318                   {
 319                   tile_pos = next_tile;
 320                   }
 321                 else
 322                   {
 323                   puts("Tilemap data is buggy");
 324                   stop();
 325                   }
 326                 }
 327             }
 328         }
 329     }
 330 }
 331
 332 //---------------------------------------------------------------------------
 333
 334 WorldMap::WorldMap()
 335 {
 336   tile_manager = new TileManager("images/worldmap/antarctica.stwt");
 337
 338   width  = 20;
 339   height = 15;
 340
 341   start_x = 4;
 342   start_y = 5;
 343
 344   tux = new Tux(this);
 345
 346   leveldot_green = new Surface(datadir +  "/images/worldmap/leveldot_green.png", true);
 347   leveldot_red = new Surface(datadir +  "/images/worldmap/leveldot_red.png", true);
 348   messagedot   = new Surface(datadir +  "/images/worldmap/messagedot.png", true);
 349   teleporterdot   = new Surface(datadir +  "/images/worldmap/teleporterdot.png", true);
 350
 351   enter_level = false;
 352
 353   name = "<no title>";
 354   music = "salcon.mod";
 355   intro_displayed = false;
 356
 357   total_stats.reset();
 358 }
 359
 360 WorldMap::~WorldMap()
 361 {
 362   delete tux;
 363   delete tile_manager;
 364
 365   delete leveldot_green;
 366   delete leveldot_red;
 367   delete messagedot;
 368   delete teleporterdot;
 369 }
 370
 371 // Don't forget to set map_filename before calling this
 372 void
 373 WorldMap::load_map()
 374 {
 375   levels_path = FileSystem::dirname(map_filename);
 376
 377   try {
 378     lisp::Parser parser;
 379     std::string filename = get_resource_filename(map_filename);
 380     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 381
 382     const lisp::Lisp* lisp = root->get_lisp("supertux-worldmap");
 383     if(!lisp)
 384       throw new std::runtime_error("file isn't a supertux-worldmap file.");
 385
 386     lisp::ListIterator iter(lisp);
 387     while(iter.next()) {
 388       if(iter.item() == "tilemap") {
 389         if(tilemap.size() > 0)
 390           throw new std::runtime_error("multiple tilemaps specified");
 391
 392         const lisp::Lisp* tilemap_lisp = iter.lisp();
 393         tilemap_lisp->get("width",  width);
 394         tilemap_lisp->get("height", height);
 395         tilemap_lisp->get_vector("data", tilemap);
 396       } else if(iter.item() == "properties") {
 397         const lisp::Lisp* props = iter.lisp();
 398         props->get("name", name);
 399         props->get("music", music);
 400         props->get("intro-filename", intro_filename);
 401         props->get("start_pos_x", start_x);
 402         props->get("start_pos_y", start_y);
 403       } else if(iter.item() == "special-tiles") {
 404         parse_special_tiles(iter.lisp());
 405       } else {
 406         std::cerr << "Unknown token '" << iter.item() << "' in worldmap.\n";
 407       }
 408     }
 409
 410     delete tux;
 411     tux = new Tux(this);
 412   } catch(std::exception& e) {
 413     std::stringstream msg;
 414     msg << "Problem when parsing worldmap '" << map_filename << "': " <<
 415       e.what();
 416     throw std::runtime_error(msg.str());
 417   }
 418 }
 419
 420 void
 421 WorldMap::parse_special_tiles(const lisp::Lisp* lisp)
 422 {
 423   lisp::ListIterator iter(lisp);
 424   while(iter.next()) {
 425     if(iter.item() == "special-tile") {
 426       SpecialTile special_tile;
 427
 428       const lisp::Lisp* lisp = iter.lisp();
 429       lisp->get("x", special_tile.pos.x);
 430       lisp->get("y", special_tile.pos.y);
 431       lisp->get("map-message", special_tile.map_message);
 432       special_tile.passive_message = false;
 433       lisp->get("passive-message", special_tile.passive_message);
 434       special_tile.teleport_dest = Vector(-1,-1);
 435       lisp->get("teleport-to-x", special_tile.teleport_dest.x);
 436       lisp->get("teleport-to-y", special_tile.teleport_dest.y);
 437       special_tile.invisible = false;
 438       lisp->get("invisible-tile", special_tile.invisible);
 439
 440       special_tile.apply_action_north = true;
 441       special_tile.apply_action_south = true;
 442       special_tile.apply_action_east = true;
 443       special_tile.apply_action_west = true;
 444
 445       std::string apply_direction;
 446       lisp->get("apply-to-direction", apply_direction);
 447       if(!apply_direction.empty()) {
 448         special_tile.apply_action_north = false;
 449         special_tile.apply_action_south = false;
 450         special_tile.apply_action_east = false;
 451         special_tile.apply_action_west = false;
 452         if(apply_direction.find("north") != std::string::npos)
 453           special_tile.apply_action_north = true;
 454         if(apply_direction.find("south") != std::string::npos)
 455           special_tile.apply_action_south = true;
 456         if(apply_direction.find("east") != std::string::npos)
 457           special_tile.apply_action_east = true;
 458         if(apply_direction.find("west") != std::string::npos)
 459           special_tile.apply_action_west = true;
 460       }
 461
 462       special_tiles.push_back(special_tile);
 463     } else if(iter.item() == "level") {
 464       Level level;
 465
 466       lisp::Lisp* level_lisp = iter.lisp();
 467       level.solved = false;
 468
 469       level.north = true;
 470       level.east  = true;
 471       level.south = true;
 472       level.west  = true;
 473
 474       level_lisp->get("extro-filename", level.extro_filename);
 475       level_lisp->get("next-worldmap", level.next_worldmap);
 476
 477       level.quit_worldmap = false;
 478       level_lisp->get("quit-worldmap", level.quit_worldmap);
 479
 480       level_lisp->get("name", level.name);
 481       level_lisp->get("x", level.pos.x);
 482       level_lisp->get("y", level.pos.y);
 483
 484       level.auto_path = true;
 485       level_lisp->get("auto-path", level.auto_path);
 486
 487       level.vertical_flip = false;
 488       level_lisp->get("vertical-flip", level.vertical_flip);
 489
 490       levels.push_back(level);
 491     } else {
 492       std::cerr << "Unknown token '" << iter.item() <<
 493         "' in worldmap special-tiles list.";
 494     }
 495   }
 496 }
 497
 498 void
 499 WorldMap::get_level_title(Level& level)
 500 {
 501   /** get special_tile's title */
 502   level.title = "<no title>";
 503
 504   try {
 505     lisp::Parser parser;
 506     std::auto_ptr<lisp::Lisp> root (
 507         parser.parse(get_resource_filename(levels_path + level.name)));
 508
 509     const lisp::Lisp* level_lisp = root->get_lisp("supertux-level");
 510     if(!level_lisp)
 511       return;
 512
 513     level_lisp->get("name", level.title);
 514   } catch(std::exception& e) {
 515     std::cerr << "Problem when reading leveltitle: " << e.what() << "\n";
 516     return;
 517   }
 518 }
 519
 520 void WorldMap::calculate_total_stats()
 521 {
 522   total_stats.reset();
 523   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 524     {
 525     if (i->solved)
 526       {
 527       total_stats += i->statistics;
 528       }
 529     }
 530 }
 531
 532 void
 533 WorldMap::on_escape_press()
 534 {
 535   // Show or hide the menu
 536   if(!Menu::current())
 537     {
 538     Menu::set_current(worldmap_menu);
 539     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 540     }
 541   else
 542     Menu::set_current(0);
 543 }
 544
 545 void
 546 WorldMap::get_input()
 547 {
 548   enter_level = false;
 549   SDLKey key;
 550
 551   SDL_Event event;
 552   while (SDL_PollEvent(&event))
 553     {
 554       if (Menu::current())
 555         {
 556           Menu::current()->event(event);
 557         }
 558       else
 559         {
 560           switch(event.type)
 561             {
 562             case SDL_QUIT:
 563               Termination::abort("Received window close", "");
 564               break;
 565
 566             case SDL_KEYDOWN:
 567               key = event.key.keysym.sym;
 568
 569               if(key == SDLK_ESCAPE)
 570                 on_escape_press();
 571               else if(key == SDLK_RETURN || key == keymap.power)
 572                 enter_level = true;
 573               else if(key == SDLK_LEFT || key == keymap.power)
 574                 tux->set_direction(D_WEST);
 575               else if(key == SDLK_RIGHT || key == keymap.right)
 576                 tux->set_direction(D_EAST);
 577               else if(key == SDLK_UP || key == keymap.up ||
 578                 key == keymap.jump)
 579                   // there might be ppl that use jump as up key
 580                 tux->set_direction(D_NORTH);
 581               else if(key == SDLK_DOWN || key == keymap.down)
 582                 tux->set_direction(D_SOUTH);
 583               break;
 584
 585             case SDL_JOYHATMOTION:
 586               if(event.jhat.value & SDL_HAT_UP) {
 587                 tux->set_direction(D_NORTH);
 588               } else if(event.jhat.value & SDL_HAT_DOWN) {
 589                 tux->set_direction(D_SOUTH);
 590               } else if(event.jhat.value & SDL_HAT_LEFT) {
 591                 tux->set_direction(D_WEST);
 592               } else if(event.jhat.value & SDL_HAT_RIGHT) {
 593                 tux->set_direction(D_EAST);
 594               }
 595               break;
 596
 597             case SDL_JOYAXISMOTION:
 598               if (event.jaxis.axis == joystick_keymap.x_axis)
 599                 {
 600                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 601                     tux->set_direction(D_WEST);
 602                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 603                     tux->set_direction(D_EAST);
 604                 }
 605               else if (event.jaxis.axis == joystick_keymap.y_axis)
 606                 {
 607                   if (event.jaxis.value > joystick_keymap.dead_zone)
 608                     tux->set_direction(D_SOUTH);
 609                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 610                     tux->set_direction(D_NORTH);
 611                 }
 612               break;
 613
 614             case SDL_JOYBUTTONDOWN:
 615               if (event.jbutton.button == joystick_keymap.b_button)
 616                 enter_level = true;
 617               else if (event.jbutton.button == joystick_keymap.start_button)
 618                 on_escape_press();
 619               break;
 620
 621             default:
 622               break;
 623             }
 624         }
 625     }
 626 }
 627
 628 Vector
 629 WorldMap::get_next_tile(Vector pos, Direction direction)
 630 {
 631   switch(direction)
 632     {
 633     case D_WEST:
 634       pos.x -= 1;
 635       break;
 636     case D_EAST:
 637       pos.x += 1;
 638       break;
 639     case D_NORTH:
 640       pos.y -= 1;
 641       break;
 642     case D_SOUTH:
 643       pos.y += 1;
 644       break;
 645     case D_NONE:
 646       break;
 647     }
 648   return pos;
 649 }
 650
 651 bool
 652 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 653 {
 654   *new_pos = get_next_tile(old_pos, direction);
 655
 656   if (!(new_pos->x >= 0 && new_pos->x < width
 657         && new_pos->y >= 0 && new_pos->y < height))
 658     { // New position is outsite the tilemap
 659       return false;
 660     }
 661   else
 662     { // Check if the tile allows us to go to new_pos
 663       switch(direction)
 664         {
 665         case D_WEST:
 666           return (at(old_pos)->getData() & Tile::WORLDMAP_WEST
 667               && at(*new_pos)->getData() & Tile::WORLDMAP_EAST);
 668
 669         case D_EAST:
 670           return (at(old_pos)->getData() & Tile::WORLDMAP_EAST
 671               && at(*new_pos)->getData() & Tile::WORLDMAP_WEST);
 672
 673         case D_NORTH:
 674           return (at(old_pos)->getData() & Tile::WORLDMAP_NORTH
 675               && at(*new_pos)->getData() & Tile::WORLDMAP_SOUTH);
 676
 677         case D_SOUTH:
 678           return (at(old_pos)->getData() & Tile::WORLDMAP_SOUTH
 679               && at(*new_pos)->getData() & Tile::WORLDMAP_NORTH);
 680
 681         case D_NONE:
 682           assert(!"path_ok() can't work if direction is NONE");
 683         }
 684       return false;
 685     }
 686 }
 687
 688 void
 689 WorldMap::update(float delta)
 690 {
 691   if (enter_level && !tux->is_moving())
 692     {
 693       /* Check special tile action */
 694       SpecialTile* special_tile = at_special_tile();
 695       if(special_tile)
 696         {
 697         if (special_tile->teleport_dest != Vector(-1,-1))
 698           {
 699           // TODO: an animation, camera scrolling or a fading would be a nice touch
 700           SoundManager::get()->play_sound(IDToSound(SND_WARP));
 701           tux->back_direction = D_NONE;
 702           tux->set_tile_pos(special_tile->teleport_dest);
 703           SDL_Delay(1000);
 704           }
 705         }
 706
 707       /* Check level action */
 708       bool level_finished = true;
 709       Level* level = at_level();
 710       if (!level)
 711         {
 712         std::cout << "No level to enter at: "
 713           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y
 714           << std::endl;
 715         return;
 716         }
 717
 718
 719       if (level->pos == tux->get_tile_pos())
 720         {
 721           PlayerStatus old_player_status = player_status;
 722
 723           std::cout << "Enter the current level: " << level->name << std::endl;
 724           // do a shriking fade to the level
 725           shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),
 726                              (level->pos.y*32 + 16 + offset.y)), 500);
 727           GameSession session(get_resource_filename(levels_path + level->name),
 728                               ST_GL_LOAD_LEVEL_FILE, &level->statistics);
 729
 730           switch (session.run())
 731             {
 732             case GameSession::ES_LEVEL_FINISHED:
 733               {
 734                 level_finished = true;
 735                 bool old_level_state = level->solved;
 736                 level->solved = true;
 737
 738                 // deal with statistics
 739                 level->statistics.merge(global_stats);
 740                 calculate_total_stats();
 741
 742                 if (old_level_state != level->solved && level->auto_path)
 743                   { // Try to detect the next direction to which we should walk
 744                     // FIXME: Mostly a hack
 745                     Direction dir = D_NONE;
 746
 747                     const Tile* tile = at(tux->get_tile_pos());
 748
 749                     if (tile->getData() & Tile::WORLDMAP_NORTH
 750                         && tux->back_direction != D_NORTH)
 751                       dir = D_NORTH;
 752                     else if (tile->getData() & Tile::WORLDMAP_SOUTH
 753                         && tux->back_direction != D_SOUTH)
 754                       dir = D_SOUTH;
 755                     else if (tile->getData() & Tile::WORLDMAP_EAST
 756                         && tux->back_direction != D_EAST)
 757                       dir = D_EAST;
 758                     else if (tile->getData() & Tile::WORLDMAP_WEST
 759                         && tux->back_direction != D_WEST)
 760                       dir = D_WEST;
 761
 762                     if (dir != D_NONE)
 763                       {
 764                         tux->set_direction(dir);
 765                         //tux->update(delta);
 766                       }
 767
 768                     std::cout << "Walk to dir: " << dir << std::endl;
 769                   }
 770               }
 771
 772               break;
 773             case GameSession::ES_LEVEL_ABORT:
 774               level_finished = false;
 775               /* In case the player's abort the level, keep it using the old
 776                   status. But the minimum lives and no bonus. */
 777               player_status.distros = old_player_status.distros;
 778               player_status.lives = std::min(old_player_status.lives, player_status.lives);
 779               player_status.bonus = NO_BONUS;
 780
 781               break;
 782             case GameSession::ES_GAME_OVER:
 783               {
 784               level_finished = false;
 785               /* draw an end screen */
 786               /* TODO: in the future, this should make a dialog a la SuperMario, asking
 787               if the player wants to restart the world map with no score and from
 788               level 1 */
 789               char str[80];
 790
 791               DrawingContext context;
 792               context.draw_gradient(Color (200,240,220), Color(200,200,220),
 793                   LAYER_BACKGROUND0);
 794
 795               context.draw_text(blue_text, _("GAMEOVER"),
 796                   Vector(SCREEN_WIDTH/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 797
 798               sprintf(str, _("COINS: %d"), player_status.distros);
 799               context.draw_text(gold_text, str,
 800                   Vector(SCREEN_WIDTH/2, SCREEN_WIDTH - 32), CENTER_ALLIGN,
 801                   LAYER_FOREGROUND1);
 802
 803               total_stats.draw_message_info(context, _("Total Statistics"));
 804
 805               context.do_drawing();
 806
 807               SDL_Event event;
 808               wait_for_event(event,2000,6000,true);
 809
 810               quit = true;
 811               player_status.reset();
 812               break;
 813               }
 814             case GameSession::ES_NONE:
 815               assert(false);
 816               // Should never be reached
 817               break;
 818             }
 819
 820           SoundManager::get()->play_music(song);
 821           Menu::set_current(0);
 822           if (!savegame_file.empty())
 823             savegame(savegame_file);
 824         }
 825       /* The porpose of the next checking is that if the player lost
 826          the level (in case there is one), don't show anything */
 827       if(level_finished) {
 828         if (!level->extro_filename.empty()) {
 829           // Display a text file
 830           std::string filename = levels_path + level->extro_filename;
 831           display_text_file(filename);
 832         }
 833
 834         if (!level->next_worldmap.empty())
 835           {
 836           // Load given worldmap
 837           loadmap(level->next_worldmap);
 838           }
 839         if (level->quit_worldmap)
 840           quit = true;
 841         }
 842     }
 843   else
 844     {
 845       tux->action(delta);
 846 //      tux->set_direction(input_direction);
 847     }
 848
 849   Menu* menu = Menu::current();
 850   if(menu)
 851     {
 852       menu->action();
 853
 854       if(menu == worldmap_menu)
 855         {
 856           switch (worldmap_menu->check())
 857             {
 858             case MNID_RETURNWORLDMAP: // Return to game
 859               break;
 860             case MNID_QUITWORLDMAP: // Quit Worldmap
 861               quit = true;
 862               break;
 863             }
 864         }
 865       else if(menu == options_menu)
 866         {
 867           process_options_menu();
 868         }
 869     }
 870 }
 871
 872 const Tile*
 873 WorldMap::at(Vector p)
 874 {
 875   assert(p.x >= 0
 876          && p.x < width
 877          && p.y >= 0
 878          && p.y < height);
 879
 880   int x = int(p.x);
 881   int y = int(p.y);
 882   return tile_manager->get(tilemap[width * y + x]);
 883 }
 884
 885 WorldMap::Level*
 886 WorldMap::at_level()
 887 {
 888   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 889     {
 890       if (i->pos == tux->get_tile_pos())
 891         return &*i;
 892     }
 893
 894   return 0;
 895 }
 896
 897 WorldMap::SpecialTile*
 898 WorldMap::at_special_tile()
 899 {
 900   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 901     {
 902       if (i->pos == tux->get_tile_pos())
 903         return &*i;
 904     }
 905
 906   return 0;
 907 }
 908
 909 void
 910 WorldMap::draw(DrawingContext& context)
 911 {
 912   for(int y = 0; y < height; ++y)
 913     for(int x = 0; x < width; ++x)
 914       {
 915         const Tile* tile = at(Vector(x, y));
 916         tile->draw(context, Vector(x*32, y*32), LAYER_TILES);
 917       }
 918
 919   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 920     {
 921       if (i->solved)
 922         context.draw_surface(leveldot_green,
 923             Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 924       else
 925         context.draw_surface(leveldot_red,
 926             Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 927     }
 928
 929   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 930     {
 931       if(i->invisible)
 932         continue;
 933
 934       if (i->teleport_dest != Vector(-1, -1))
 935         context.draw_surface(teleporterdot,
 936                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 937
 938       else if (!i->map_message.empty() && !i->passive_message)
 939         context.draw_surface(messagedot,
 940                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 941     }
 942
 943   tux->draw(context);
 944   draw_status(context);
 945 }
 946
 947 void
 948 WorldMap::draw_status(DrawingContext& context)
 949 {
 950   context.push_transform();
 951   context.set_translation(Vector(0, 0));
 952
 953   char str[80];
 954   sprintf(str, " %d", total_stats.get_points(SCORE_STAT));
 955
 956   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 957   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 958
 959   sprintf(str, "%d", player_status.distros);
 960   context.draw_text(white_text, _("COINS"), Vector(SCREEN_WIDTH/2 - 16*5, 0),
 961       LEFT_ALLIGN, LAYER_FOREGROUND1);
 962   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2 + (16*5)/2, 0),
 963         LEFT_ALLIGN, LAYER_FOREGROUND1);
 964
 965   if (player_status.lives >= 5)
 966     {
 967       sprintf(str, "%dx", player_status.lives);
 968       context.draw_text(gold_text, str,
 969           Vector(SCREEN_WIDTH - gold_text->get_text_width(str) - tux_life->w, 0),
 970           LEFT_ALLIGN, LAYER_FOREGROUND1);
 971       context.draw_surface(tux_life, Vector(SCREEN_WIDTH -
 972             gold_text->get_text_width("9"), 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 973     }
 974   else
 975     {
 976       for(int i= 0; i < player_status.lives; ++i)
 977         context.draw_surface(tux_life,
 978             Vector(SCREEN_WIDTH - tux_life->w*4 + (tux_life->w*i), 0),
 979             LAYER_FOREGROUND1);
 980     }
 981   context.draw_text(white_text, _("LIVES"),
 982       Vector(SCREEN_WIDTH - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
 983       LEFT_ALLIGN, LAYER_FOREGROUND1);
 984
 985   if (!tux->is_moving())
 986     {
 987       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 988         {
 989           if (i->pos == tux->get_tile_pos())
 990             {
 991               if(i->title == "")
 992                 get_level_title(*i);
 993
 994               context.draw_text(white_text, i->title,
 995                   Vector(SCREEN_WIDTH/2,
 996                          SCREEN_HEIGHT - white_text->get_height() - 30),
 997                   CENTER_ALLIGN, LAYER_FOREGROUND1);
 998
 999               i->statistics.draw_worldmap_info(context);
1000               break;
1001             }
1002         }
1003       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1004         {
1005           if (i->pos == tux->get_tile_pos())
1006             {
1007                /* Display an in-map message in the map, if any as been selected */
1008               if(!i->map_message.empty() && !i->passive_message)
1009                 context.draw_text(gold_text, i->map_message,
1010                     Vector(SCREEN_WIDTH/2,
1011                            SCREEN_HEIGHT - white_text->get_height() - 60),
1012                     CENTER_ALLIGN, LAYER_FOREGROUND1);
1013               break;
1014             }
1015         }
1016     }
1017   /* Display a passive message in the map, if needed */
1018   if(passive_message_timer.check())
1019     context.draw_text(gold_text, passive_message,
1020             Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT - white_text->get_height() - 60),
1021             CENTER_ALLIGN, LAYER_FOREGROUND1);
1022
1023   context.pop_transform();
1024 }
1025
1026 void
1027 WorldMap::display()
1028 {
1029   Menu::set_current(0);
1030
1031   quit = false;
1032
1033   song = SoundManager::get()->load_music(datadir +  "/music/" + music);
1034   SoundManager::get()->play_music(song);
1035
1036   if(!intro_displayed && intro_filename != "") {
1037     std::string filename = levels_path + intro_filename;
1038     display_text_file(filename);
1039     intro_displayed = true;
1040   }
1041
1042   Uint32 lastticks = SDL_GetTicks();
1043   DrawingContext context;
1044   while(!quit) {
1045     Uint32 ticks = SDL_GetTicks();
1046     float elapsed_time = float(ticks - lastticks) / 1000;
1047     global_time += elapsed_time;
1048     lastticks = ticks;
1049
1050     // 40 fps minimum
1051     if(elapsed_time > .025)
1052       elapsed_time = .025;
1053
1054     Vector tux_pos = tux->get_pos();
1055
1056     offset.x = -tux_pos.x + SCREEN_WIDTH/2;
1057     offset.y = -tux_pos.y + SCREEN_HEIGHT/2;
1058
1059     if (offset.x > 0) offset.x = 0;
1060     if (offset.y > 0) offset.y = 0;
1061
1062     if (offset.x < SCREEN_WIDTH - width*32) offset.x = SCREEN_WIDTH - width*32;
1063     if (offset.y < SCREEN_HEIGHT - height*32) offset.y = SCREEN_HEIGHT - height*32;
1064
1065     context.push_transform();
1066     context.set_translation(-offset);
1067     draw(context);
1068     context.pop_transform();
1069     get_input();
1070     update(elapsed_time);
1071
1072     if(Menu::current()) {
1073       Menu::current()->draw(context);
1074       mouse_cursor->draw(context);
1075     }
1076
1077     context.do_drawing();
1078   }
1079 }
1080
1081 void
1082 WorldMap::savegame(const std::string& filename)
1083 {
1084   if(filename == "")
1085     return;
1086
1087   std::ofstream file(filename.c_str(), std::ios::out);
1088   lisp::Writer writer(file);
1089
1090   int nb_solved_levels = 0, total_levels = 0;
1091   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
1092     ++total_levels;
1093     if (i->solved)
1094       ++nb_solved_levels;
1095   }
1096   char nb_solved_levels_str[80], total_levels_str[80];
1097   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1098   sprintf(total_levels_str, "%d", total_levels);
1099
1100   writer.write_comment("Worldmap save file");
1101
1102   writer.start_list("supertux-savegame");
1103
1104   writer.write_int("version", 1);
1105   writer.write_string("title",
1106       std::string(name + " - " + nb_solved_levels_str+"/"+total_levels_str));
1107   writer.write_string("map", map_filename);
1108   writer.write_bool("intro-displayed", intro_displayed);
1109
1110   writer.start_list("tux");
1111
1112   writer.write_float("x", tux->get_tile_pos().x);
1113   writer.write_float("y", tux->get_tile_pos().y);
1114   writer.write_string("back", direction_to_string(tux->back_direction));
1115   player_status.write(writer);
1116   writer.write_string("back", direction_to_string(tux->back_direction));
1117
1118   writer.end_list("tux");
1119
1120   writer.start_list("levels");
1121
1122   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1123     {
1124       if (i->solved)
1125         {
1126         writer.start_list("level");
1127
1128         writer.write_string("name", i->name);
1129         writer.write_bool("solved", true);
1130         i->statistics.write(writer);
1131
1132         writer.end_list("level");
1133         }
1134     }
1135
1136   writer.end_list("levels");
1137
1138   writer.end_list("supertux-savegame");
1139 }
1140
1141 void
1142 WorldMap::loadgame(const std::string& filename)
1143 {
1144   std::cout << "loadgame: " << filename << std::endl;
1145   savegame_file = filename;
1146
1147   try {
1148     lisp::Parser parser;
1149     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
1150
1151     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
1152     if(!savegame)
1153       throw std::runtime_error("File is not a supertux-savegame file.");
1154
1155     /* Get the Map filename and then load it before setting level settings */
1156     std::string cur_map_filename = map_filename;
1157     savegame->get("map", map_filename);
1158     load_map();
1159
1160     savegame->get("intro-displayed", intro_displayed);
1161     savegame->get("lives", player_status.lives);
1162     savegame->get("distros", player_status.distros);
1163     savegame->get("max-score-multiplier", player_status.max_score_multiplier);
1164     if (player_status.lives < 0)
1165       player_status.reset();
1166
1167     const lisp::Lisp* tux_lisp = savegame->get_lisp("tux");
1168     if(tux)
1169     {
1170       Vector p;
1171       std::string back_str = "none";
1172
1173       tux_lisp->get("x", p.x);
1174       tux_lisp->get("y", p.y);
1175       tux_lisp->get("back", back_str);
1176       player_status.read(*tux_lisp);
1177
1178       tux->back_direction = string_to_direction(back_str);
1179       tux->set_tile_pos(p);
1180     }
1181
1182     const lisp::Lisp* levels_lisp = savegame->get_lisp("levels");
1183     if(levels_lisp) {
1184       lisp::ListIterator iter(levels_lisp);
1185       while(iter.next()) {
1186         if(iter.item() == "level") {
1187           std::string name;
1188           bool solved = false;
1189
1190           const lisp::Lisp* level = iter.lisp();
1191           level->get("name", name);
1192           level->get("solved", solved);
1193
1194           for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1195           {
1196             if (name == i->name)
1197             {
1198               i->solved = solved;
1199               i->statistics.parse(*level);
1200               break;
1201             }
1202           }
1203         } else {
1204           std::cerr << "Unknown token '" << iter.item()
1205             << "' in levels block in worldmap.\n";
1206         }
1207       }
1208     }
1209   } catch(std::exception& e) {
1210     std::cerr << "Problem loading game '" << filename << "': " << e.what()
1211       << "\n";
1212     load_map();
1213     player_status.reset();
1214   }
1215
1216   calculate_total_stats();
1217 }
1218
1219 void
1220 WorldMap::loadmap(const std::string& filename)
1221 {
1222   savegame_file = "";
1223   map_filename = filename;
1224   load_map();
1225 }
1226
1227 } // namespace WorldMapNS