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 "audio/sound_manager.h"
  37 #include "lisp/parser.h"
  38 #include "lisp/lisp.h"
  39 #include "lisp/list_iterator.h"
  40 #include "lisp/writer.h"
  41 #include "gameloop.h"
  42 #include "sector.h"
  43 #include "worldmap.h"
  44 #include "resources.h"
  45 #include "misc.h"
  46 #include "player_status.h"
  47
  48 #define map_message_TIME 2.8
  49
  50 Menu* worldmap_menu  = 0;
  51
  52 static const float TUXSPEED = 200;
  53
  54 namespace WorldMapNS {
  55
  56 Direction reverse_dir(Direction direction)
  57 {
  58   switch(direction)
  59     {
  60     case D_WEST:
  61       return D_EAST;
  62     case D_EAST:
  63       return D_WEST;
  64     case D_NORTH:
  65       return D_SOUTH;
  66     case D_SOUTH:
  67       return D_NORTH;
  68     case D_NONE:
  69       return D_NONE;
  70     }
  71   return D_NONE;
  72 }
  73
  74 std::string
  75 direction_to_string(Direction direction)
  76 {
  77   switch(direction)
  78     {
  79     case D_WEST:
  80       return "west";
  81     case D_EAST:
  82       return "east";
  83     case D_NORTH:
  84       return "north";
  85     case D_SOUTH:
  86       return "south";
  87     default:
  88       return "none";
  89     }
  90 }
  91
  92 Direction
  93 string_to_direction(const std::string& directory)
  94 {
  95   if (directory == "west")
  96     return D_WEST;
  97   else if (directory == "east")
  98     return D_EAST;
  99   else if (directory == "north")
 100     return D_NORTH;
 101   else if (directory == "south")
 102     return D_SOUTH;
 103   else
 104     return D_NONE;
 105 }
 106
 107 //---------------------------------------------------------------------------
 108
 109 Tux::Tux(WorldMap* worldmap_)
 110   : worldmap(worldmap_)
 111 {
 112   largetux_sprite = new Surface(datadir +  "/images/worldmap/tux.png", true);
 113   firetux_sprite = new Surface(datadir +  "/images/worldmap/firetux.png", true);
 114   smalltux_sprite = new Surface(datadir +  "/images/worldmap/smalltux.png", true);
 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 smalltux_sprite;
 127   delete firetux_sprite;
 128   delete largetux_sprite;
 129 }
 130
 131 void
 132 Tux::draw(DrawingContext& context, const Vector& offset)
 133 {
 134   Vector pos = get_pos();
 135   switch (player_status.bonus)
 136     {
 137     case PlayerStatus::GROWUP_BONUS:
 138       context.draw_surface(largetux_sprite,
 139           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 140       break;
 141     case PlayerStatus::FLOWER_BONUS:
 142       context.draw_surface(firetux_sprite,
 143           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 144       break;
 145     case PlayerStatus::NO_BONUS:
 146       context.draw_surface(smalltux_sprite,
 147           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 148       break;
 149     }
 150 }
 151
 152
 153 Vector
 154 Tux::get_pos()
 155 {
 156   float x = tile_pos.x * 32;
 157   float y = tile_pos.y * 32;
 158
 159   switch(direction)
 160     {
 161     case D_WEST:
 162       x -= offset - 32;
 163       break;
 164     case D_EAST:
 165       x += offset - 32;
 166       break;
 167     case D_NORTH:
 168       y -= offset - 32;
 169       break;
 170     case D_SOUTH:
 171       y += offset - 32;
 172       break;
 173     case D_NONE:
 174       break;
 175     }
 176
 177   return Vector((int)x, (int)y);
 178 }
 179
 180 void
 181 Tux::stop()
 182 {
 183   offset = 0;
 184   direction = D_NONE;
 185   input_direction = D_NONE;
 186   moving = false;
 187 }
 188
 189 void
 190 Tux::set_direction(Direction dir)
 191 {
 192 input_direction = dir;
 193 }
 194
 195 void
 196 Tux::action(float delta)
 197 {
 198   if (!moving)
 199     {
 200       if (input_direction != D_NONE)
 201         {
 202           WorldMap::Level* level = worldmap->at_level();
 203
 204           // We got a new direction, so lets start walking when possible
 205           Vector next_tile;
 206           if ((!level || level->solved)
 207               && worldmap->path_ok(input_direction, tile_pos, &next_tile))
 208             {
 209               tile_pos = next_tile;
 210               moving = true;
 211               direction = input_direction;
 212               back_direction = reverse_dir(direction);
 213             }
 214           else if (input_direction == back_direction)
 215             {
 216               moving = true;
 217               direction = input_direction;
 218               tile_pos = worldmap->get_next_tile(tile_pos, direction);
 219               back_direction = reverse_dir(direction);
 220             }
 221         }
 222     }
 223   else
 224     {
 225       // Let tux walk
 226       offset += TUXSPEED * delta;
 227
 228       if (offset > 32)
 229         { // We reached the next tile, so we check what to do now
 230           offset -= 32;
 231
 232           WorldMap::SpecialTile* special_tile = worldmap->at_special_tile();
 233           if(special_tile && special_tile->passive_message)
 234             {  // direction and the apply_action_ are opposites, since they "see"
 235                // directions in a different way
 236             if((direction == D_NORTH && special_tile->apply_action_south) ||
 237                (direction == D_SOUTH && special_tile->apply_action_north) ||
 238                (direction == D_WEST && special_tile->apply_action_east) ||
 239                (direction == D_EAST && special_tile->apply_action_west))
 240               {
 241               worldmap->passive_message = special_tile->map_message;
 242               worldmap->passive_message_timer.start(map_message_TIME);
 243               }
 244             }
 245
 246           if (worldmap->at(tile_pos)->getData() & Tile::WORLDMAP_STOP ||
 247              (special_tile && !special_tile->passive_message) ||
 248               worldmap->at_level())
 249             {
 250               if(special_tile && !special_tile->map_message.empty() &&
 251                 !special_tile->passive_message)
 252                 worldmap->passive_message_timer.start(0);
 253               stop();
 254             }
 255           else
 256             {
 257               const Tile* tile = worldmap->at(tile_pos);
 258               if (direction != input_direction)
 259                 {
 260                   // Turn to a new direction
 261                   const Tile* tile = worldmap->at(tile_pos);
 262
 263                   if((tile->getData() & Tile::WORLDMAP_NORTH
 264                       && input_direction == D_NORTH) ||
 265                      (tile->getData() & Tile::WORLDMAP_SOUTH
 266                       && input_direction == D_SOUTH) ||
 267                      (tile->getData() & Tile::WORLDMAP_EAST
 268                       && input_direction == D_EAST) ||
 269                      (tile->getData() & Tile::WORLDMAP_WEST
 270                       && input_direction == D_WEST))
 271                     {  // player has changed direction during auto-movement
 272                       direction = input_direction;
 273                       back_direction = reverse_dir(direction);
 274                     }
 275                   else
 276                     {  // player has changed to impossible tile
 277                       back_direction = reverse_dir(direction);
 278                       stop();
 279                     }
 280                 }
 281               else
 282                 {
 283                 Direction dir = D_NONE;
 284
 285                 if (tile->getData() & Tile::WORLDMAP_NORTH
 286                     && back_direction != D_NORTH)
 287                   dir = D_NORTH;
 288                 else if (tile->getData() & Tile::WORLDMAP_SOUTH
 289                     && back_direction != D_SOUTH)
 290                   dir = D_SOUTH;
 291                 else if (tile->getData() & Tile::WORLDMAP_EAST
 292                     && back_direction != D_EAST)
 293                   dir = D_EAST;
 294                 else if (tile->getData() & Tile::WORLDMAP_WEST
 295                     && back_direction != D_WEST)
 296                   dir = D_WEST;
 297
 298                 if (dir != D_NONE)
 299                   {
 300                   direction = dir;
 301                   input_direction = direction;
 302                   back_direction = reverse_dir(direction);
 303                   }
 304                 else
 305                   {
 306                   // Should never be reached if tiledata is good
 307                   stop();
 308                   return;
 309                   }
 310                 }
 311
 312               // Walk automatically to the next tile
 313               if(direction != D_NONE)
 314                 {
 315                 Vector next_tile;
 316                 if (worldmap->path_ok(direction, tile_pos, &next_tile))
 317                   {
 318                   tile_pos = next_tile;
 319                   }
 320                 else
 321                   {
 322                   puts("Tilemap data is buggy");
 323                   stop();
 324                   }
 325                 }
 326             }
 327         }
 328     }
 329 }
 330
 331 //---------------------------------------------------------------------------
 332
 333 WorldMap::WorldMap()
 334 {
 335   tile_manager = new TileManager("images/worldmap/antarctica.stwt");
 336
 337   width  = 20;
 338   height = 15;
 339
 340   start_x = 4;
 341   start_y = 5;
 342
 343   tux = new Tux(this);
 344
 345   leveldot_green = new Surface(datadir +  "/images/worldmap/leveldot_green.png", true);
 346   leveldot_red = new Surface(datadir +  "/images/worldmap/leveldot_red.png", true);
 347   messagedot   = new Surface(datadir +  "/images/worldmap/messagedot.png", true);
 348   teleporterdot   = new Surface(datadir +  "/images/worldmap/teleporterdot.png", true);
 349
 350   enter_level = false;
 351
 352   name = "<no title>";
 353   music = "salcon.mod";
 354   intro_displayed = false;
 355
 356   total_stats.reset();
 357 }
 358
 359 WorldMap::~WorldMap()
 360 {
 361   delete tux;
 362   delete tile_manager;
 363
 364   delete leveldot_green;
 365   delete leveldot_red;
 366   delete messagedot;
 367   delete teleporterdot;
 368 }
 369
 370 // Don't forget to set map_filename before calling this
 371 void
 372 WorldMap::load_map()
 373 {
 374   levels_path = FileSystem::dirname(map_filename);
 375
 376   try {
 377     lisp::Parser parser;
 378     std::string filename = get_resource_filename(map_filename);
 379     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 380
 381     const lisp::Lisp* lisp = root->get_lisp("supertux-worldmap");
 382     if(!lisp)
 383       throw new std::runtime_error("file isn't a supertux-worldmap file.");
 384
 385     lisp::ListIterator iter(lisp);
 386     while(iter.next()) {
 387       if(iter.item() == "tilemap") {
 388         if(tilemap.size() > 0)
 389           throw new std::runtime_error("multiple tilemaps specified");
 390
 391         const lisp::Lisp* tilemap_lisp = iter.lisp();
 392         tilemap_lisp->get("width",  width);
 393         tilemap_lisp->get("height", height);
 394         tilemap_lisp->get_vector("data", tilemap);
 395       } else if(iter.item() == "properties") {
 396         const lisp::Lisp* props = iter.lisp();
 397         props->get("name", name);
 398         props->get("music", music);
 399         props->get("intro-filename", intro_filename);
 400         props->get("start_pos_x", start_x);
 401         props->get("start_pos_y", start_y);
 402       } else if(iter.item() == "special-tiles") {
 403         parse_special_tiles(iter.lisp());
 404       } else {
 405         std::cerr << "Unknown token '" << iter.item() << "' in worldmap.\n";
 406       }
 407     }
 408
 409     delete tux;
 410     tux = new Tux(this);
 411   } catch(std::exception& e) {
 412     std::stringstream msg;
 413     msg << "Problem when parsing worldmap '" << map_filename << "': " <<
 414       e.what();
 415     throw std::runtime_error(msg.str());
 416   }
 417 }
 418
 419 void
 420 WorldMap::parse_special_tiles(const lisp::Lisp* lisp)
 421 {
 422   lisp::ListIterator iter(lisp);
 423   while(iter.next()) {
 424     if(iter.item() == "special-tile") {
 425       SpecialTile special_tile;
 426
 427       const lisp::Lisp* lisp = iter.lisp();
 428       lisp->get("x", special_tile.pos.x);
 429       lisp->get("y", special_tile.pos.y);
 430       lisp->get("map-message", special_tile.map_message);
 431       special_tile.passive_message = false;
 432       lisp->get("passive-message", special_tile.passive_message);
 433       special_tile.teleport_dest = Vector(-1,-1);
 434       lisp->get("teleport-to-x", special_tile.teleport_dest.x);
 435       lisp->get("teleport-to-y", special_tile.teleport_dest.y);
 436       special_tile.invisible = false;
 437       lisp->get("invisible-tile", special_tile.invisible);
 438
 439       special_tile.apply_action_north = true;
 440       special_tile.apply_action_south = true;
 441       special_tile.apply_action_east = true;
 442       special_tile.apply_action_west = true;
 443
 444       std::string apply_direction;
 445       lisp->get("apply-to-direction", apply_direction);
 446       if(!apply_direction.empty()) {
 447         special_tile.apply_action_north = false;
 448         special_tile.apply_action_south = false;
 449         special_tile.apply_action_east = false;
 450         special_tile.apply_action_west = false;
 451         if(apply_direction.find("north") != std::string::npos)
 452           special_tile.apply_action_north = true;
 453         if(apply_direction.find("south") != std::string::npos)
 454           special_tile.apply_action_south = true;
 455         if(apply_direction.find("east") != std::string::npos)
 456           special_tile.apply_action_east = true;
 457         if(apply_direction.find("west") != std::string::npos)
 458           special_tile.apply_action_west = true;
 459       }
 460
 461       special_tiles.push_back(special_tile);
 462     } else if(iter.item() == "level") {
 463       Level level;
 464
 465       lisp::Lisp* level_lisp = iter.lisp();
 466       level.solved = false;
 467
 468       level.north = true;
 469       level.east  = true;
 470       level.south = true;
 471       level.west  = true;
 472
 473       level_lisp->get("extro-filename", level.extro_filename);
 474       level_lisp->get("next-worldmap", level.next_worldmap);
 475
 476       level.quit_worldmap = false;
 477       level_lisp->get("quit-worldmap", level.quit_worldmap);
 478
 479       level_lisp->get("name", level.name);
 480       level_lisp->get("x", level.pos.x);
 481       level_lisp->get("y", level.pos.y);
 482
 483       level.auto_path = true;
 484       level_lisp->get("auto-path", level.auto_path);
 485
 486       level.vertical_flip = false;
 487       level_lisp->get("vertical-flip", level.vertical_flip);
 488
 489       levels.push_back(level);
 490     } else {
 491       std::cerr << "Unknown token '" << iter.item() <<
 492         "' in worldmap special-tiles list.";
 493     }
 494   }
 495 }
 496
 497 void
 498 WorldMap::get_level_title(Level& level)
 499 {
 500   /** get special_tile's title */
 501   level.title = "<no title>";
 502
 503   try {
 504     lisp::Parser parser;
 505     std::auto_ptr<lisp::Lisp> root (
 506         parser.parse(get_resource_filename(levels_path + level.name)));
 507
 508     const lisp::Lisp* level_lisp = root->get_lisp("supertux-level");
 509     if(!level_lisp)
 510       return;
 511
 512     level_lisp->get("name", level.title);
 513   } catch(std::exception& e) {
 514     std::cerr << "Problem when reading leveltitle: " << e.what() << "\n";
 515     return;
 516   }
 517 }
 518
 519 void WorldMap::calculate_total_stats()
 520 {
 521   total_stats.reset();
 522   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 523     {
 524     if (i->solved)
 525       {
 526       total_stats += i->statistics;
 527       }
 528     }
 529 }
 530
 531 void
 532 WorldMap::on_escape_press()
 533 {
 534   // Show or hide the menu
 535   if(!Menu::current())
 536     {
 537     Menu::set_current(worldmap_menu);
 538     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 539     }
 540   else
 541     Menu::set_current(0);
 542 }
 543
 544 void
 545 WorldMap::get_input()
 546 {
 547   enter_level = false;
 548   SDLKey key;
 549
 550   SDL_Event event;
 551   while (SDL_PollEvent(&event))
 552     {
 553       if (Menu::current())
 554         {
 555           Menu::current()->event(event);
 556         }
 557       else
 558         {
 559           switch(event.type)
 560             {
 561             case SDL_QUIT:
 562               Termination::abort("Received window close", "");
 563               break;
 564
 565             case SDL_KEYDOWN:
 566               key = event.key.keysym.sym;
 567
 568               if(key == SDLK_ESCAPE)
 569                 on_escape_press();
 570               else if(key == SDLK_RETURN || key == keymap.power)
 571                 enter_level = true;
 572               else if(key == SDLK_LEFT || key == keymap.power)
 573                 tux->set_direction(D_WEST);
 574               else if(key == SDLK_RIGHT || key == keymap.right)
 575                 tux->set_direction(D_EAST);
 576               else if(key == SDLK_UP || key == keymap.up ||
 577                 key == keymap.jump)
 578                   // there might be ppl that use jump as up key
 579                 tux->set_direction(D_NORTH);
 580               else if(key == SDLK_DOWN || key == keymap.down)
 581                 tux->set_direction(D_SOUTH);
 582               break;
 583
 584             case SDL_JOYHATMOTION:
 585               if(event.jhat.value & SDL_HAT_UP) {
 586                 tux->set_direction(D_NORTH);
 587               } else if(event.jhat.value & SDL_HAT_DOWN) {
 588                 tux->set_direction(D_SOUTH);
 589               } else if(event.jhat.value & SDL_HAT_LEFT) {
 590                 tux->set_direction(D_WEST);
 591               } else if(event.jhat.value & SDL_HAT_RIGHT) {
 592                 tux->set_direction(D_EAST);
 593               }
 594               break;
 595
 596             case SDL_JOYAXISMOTION:
 597               if (event.jaxis.axis == joystick_keymap.x_axis)
 598                 {
 599                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 600                     tux->set_direction(D_WEST);
 601                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 602                     tux->set_direction(D_EAST);
 603                 }
 604               else if (event.jaxis.axis == joystick_keymap.y_axis)
 605                 {
 606                   if (event.jaxis.value > joystick_keymap.dead_zone)
 607                     tux->set_direction(D_SOUTH);
 608                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 609                     tux->set_direction(D_NORTH);
 610                 }
 611               break;
 612
 613             case SDL_JOYBUTTONDOWN:
 614               if (event.jbutton.button == joystick_keymap.b_button)
 615                 enter_level = true;
 616               else if (event.jbutton.button == joystick_keymap.start_button)
 617                 on_escape_press();
 618               break;
 619
 620             default:
 621               break;
 622             }
 623         }
 624     }
 625 }
 626
 627 Vector
 628 WorldMap::get_next_tile(Vector pos, Direction direction)
 629 {
 630   switch(direction)
 631     {
 632     case D_WEST:
 633       pos.x -= 1;
 634       break;
 635     case D_EAST:
 636       pos.x += 1;
 637       break;
 638     case D_NORTH:
 639       pos.y -= 1;
 640       break;
 641     case D_SOUTH:
 642       pos.y += 1;
 643       break;
 644     case D_NONE:
 645       break;
 646     }
 647   return pos;
 648 }
 649
 650 bool
 651 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 652 {
 653   *new_pos = get_next_tile(old_pos, direction);
 654
 655   if (!(new_pos->x >= 0 && new_pos->x < width
 656         && new_pos->y >= 0 && new_pos->y < height))
 657     { // New position is outsite the tilemap
 658       return false;
 659     }
 660   else
 661     { // Check if the tile allows us to go to new_pos
 662       switch(direction)
 663         {
 664         case D_WEST:
 665           return (at(old_pos)->getData() & Tile::WORLDMAP_WEST
 666               && at(*new_pos)->getData() & Tile::WORLDMAP_EAST);
 667
 668         case D_EAST:
 669           return (at(old_pos)->getData() & Tile::WORLDMAP_EAST
 670               && at(*new_pos)->getData() & Tile::WORLDMAP_WEST);
 671
 672         case D_NORTH:
 673           return (at(old_pos)->getData() & Tile::WORLDMAP_NORTH
 674               && at(*new_pos)->getData() & Tile::WORLDMAP_SOUTH);
 675
 676         case D_SOUTH:
 677           return (at(old_pos)->getData() & Tile::WORLDMAP_SOUTH
 678               && at(*new_pos)->getData() & Tile::WORLDMAP_NORTH);
 679
 680         case D_NONE:
 681           assert(!"path_ok() can't work if direction is NONE");
 682         }
 683       return false;
 684     }
 685 }
 686
 687 void
 688 WorldMap::update(float delta)
 689 {
 690   if (enter_level && !tux->is_moving())
 691     {
 692       /* Check special tile action */
 693       SpecialTile* special_tile = at_special_tile();
 694       if(special_tile)
 695         {
 696         if (special_tile->teleport_dest != Vector(-1,-1))
 697           {
 698           // TODO: an animation, camera scrolling or a fading would be a nice touch
 699           SoundManager::get()->play_sound(IDToSound(SND_WARP));
 700           tux->back_direction = D_NONE;
 701           tux->set_tile_pos(special_tile->teleport_dest);
 702           SDL_Delay(1000);
 703           }
 704         }
 705
 706       /* Check level action */
 707       bool level_finished = true;
 708       Level* level = at_level();
 709       if (!level)
 710         {
 711         std::cout << "No level to enter at: "
 712           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y
 713           << std::endl;
 714         return;
 715         }
 716
 717
 718       if (level->pos == tux->get_tile_pos())
 719         {
 720           PlayerStatus old_player_status = player_status;
 721
 722           std::cout << "Enter the current level: " << level->name << std::endl;
 723           // do a shriking fade to the level
 724           shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),
 725                              (level->pos.y*32 + 16 + offset.y)), 500);
 726           GameSession session(get_resource_filename(levels_path + level->name),
 727                               ST_GL_LOAD_LEVEL_FILE, &level->statistics);
 728
 729           switch (session.run())
 730             {
 731             case GameSession::ES_LEVEL_FINISHED:
 732               {
 733                 level_finished = true;
 734                 bool old_level_state = level->solved;
 735                 level->solved = true;
 736
 737                 // deal with statistics
 738                 level->statistics.merge(global_stats);
 739                 calculate_total_stats();
 740
 741                 if (session.get_current_sector()->player->got_power !=
 742                       session.get_current_sector()->player->NONE_POWER)
 743                   player_status.bonus = PlayerStatus::FLOWER_BONUS;
 744                 else if (session.get_current_sector()->player->size == BIG)
 745                   player_status.bonus = PlayerStatus::GROWUP_BONUS;
 746                 else
 747                   player_status.bonus = PlayerStatus::NO_BONUS;
 748
 749                 if (old_level_state != level->solved && level->auto_path)
 750                   { // Try to detect the next direction to which we should walk
 751                     // FIXME: Mostly a hack
 752                     Direction dir = D_NONE;
 753
 754                     const Tile* tile = at(tux->get_tile_pos());
 755
 756                     if (tile->getData() & Tile::WORLDMAP_NORTH
 757                         && tux->back_direction != D_NORTH)
 758                       dir = D_NORTH;
 759                     else if (tile->getData() & Tile::WORLDMAP_SOUTH
 760                         && tux->back_direction != D_SOUTH)
 761                       dir = D_SOUTH;
 762                     else if (tile->getData() & Tile::WORLDMAP_EAST
 763                         && tux->back_direction != D_EAST)
 764                       dir = D_EAST;
 765                     else if (tile->getData() & Tile::WORLDMAP_WEST
 766                         && tux->back_direction != D_WEST)
 767                       dir = D_WEST;
 768
 769                     if (dir != D_NONE)
 770                       {
 771                         tux->set_direction(dir);
 772                         //tux->update(delta);
 773                       }
 774
 775                     std::cout << "Walk to dir: " << dir << std::endl;
 776                   }
 777               }
 778
 779               break;
 780             case GameSession::ES_LEVEL_ABORT:
 781               level_finished = false;
 782               /* In case the player's abort the level, keep it using the old
 783                   status. But the minimum lives and no bonus. */
 784               player_status.distros = old_player_status.distros;
 785               player_status.lives = std::min(old_player_status.lives, player_status.lives);
 786               player_status.bonus = player_status.NO_BONUS;
 787
 788               break;
 789             case GameSession::ES_GAME_OVER:
 790               {
 791               level_finished = false;
 792               /* draw an end screen */
 793               /* TODO: in the future, this should make a dialog a la SuperMario, asking
 794               if the player wants to restart the world map with no score and from
 795               level 1 */
 796               char str[80];
 797
 798               DrawingContext context;
 799               context.draw_gradient(Color (200,240,220), Color(200,200,220),
 800                   LAYER_BACKGROUND0);
 801
 802               context.draw_text(blue_text, _("GAMEOVER"),
 803                   Vector(screen->w/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 804
 805               sprintf(str, _("COINS: %d"), player_status.distros);
 806               context.draw_text(gold_text, str,
 807                   Vector(screen->w/2, screen->w - 32), CENTER_ALLIGN,
 808                   LAYER_FOREGROUND1);
 809
 810               total_stats.draw_message_info(context, _("Total Statistics"));
 811
 812               context.do_drawing();
 813
 814               SDL_Event event;
 815               wait_for_event(event,2000,6000,true);
 816
 817               quit = true;
 818               player_status.reset();
 819               break;
 820               }
 821             case GameSession::ES_NONE:
 822               assert(false);
 823               // Should never be reached
 824               break;
 825             }
 826
 827           SoundManager::get()->play_music(song);
 828           Menu::set_current(0);
 829           if (!savegame_file.empty())
 830             savegame(savegame_file);
 831         }
 832       /* The porpose of the next checking is that if the player lost
 833          the level (in case there is one), don't show anything */
 834       if(level_finished) {
 835         if (!level->extro_filename.empty()) {
 836           // Display a text file
 837           std::string filename = levels_path + level->extro_filename;
 838           display_text_file(filename, SCROLL_SPEED_MESSAGE,
 839                             white_big_text , white_text, white_small_text, blue_text );
 840         }
 841
 842         if (!level->next_worldmap.empty())
 843           {
 844           // Load given worldmap
 845           loadmap(level->next_worldmap);
 846           }
 847         if (level->quit_worldmap)
 848           quit = true;
 849         }
 850     }
 851   else
 852     {
 853       tux->action(delta);
 854 //      tux->set_direction(input_direction);
 855     }
 856
 857   Menu* menu = Menu::current();
 858   if(menu)
 859     {
 860       menu->action();
 861
 862       if(menu == worldmap_menu)
 863         {
 864           switch (worldmap_menu->check())
 865             {
 866             case MNID_RETURNWORLDMAP: // Return to game
 867               break;
 868             case MNID_QUITWORLDMAP: // Quit Worldmap
 869               quit = true;
 870               break;
 871             }
 872         }
 873       else if(menu == options_menu)
 874         {
 875           process_options_menu();
 876         }
 877     }
 878 }
 879
 880 const Tile*
 881 WorldMap::at(Vector p)
 882 {
 883   assert(p.x >= 0
 884          && p.x < width
 885          && p.y >= 0
 886          && p.y < height);
 887
 888   int x = int(p.x);
 889   int y = int(p.y);
 890   return tile_manager->get(tilemap[width * y + x]);
 891 }
 892
 893 WorldMap::Level*
 894 WorldMap::at_level()
 895 {
 896   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 897     {
 898       if (i->pos == tux->get_tile_pos())
 899         return &*i;
 900     }
 901
 902   return 0;
 903 }
 904
 905 WorldMap::SpecialTile*
 906 WorldMap::at_special_tile()
 907 {
 908   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 909     {
 910       if (i->pos == tux->get_tile_pos())
 911         return &*i;
 912     }
 913
 914   return 0;
 915 }
 916
 917
 918 void
 919 WorldMap::draw(DrawingContext& context, const Vector& offset)
 920 {
 921   for(int y = 0; y < height; ++y)
 922     for(int x = 0; x < width; ++x)
 923       {
 924         const Tile* tile = at(Vector(x, y));
 925         tile->draw(context, Vector(x*32 + offset.x, y*32 + offset.y),
 926             LAYER_TILES);
 927       }
 928
 929   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 930     {
 931       if (i->solved)
 932         context.draw_surface(leveldot_green,
 933             Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
 934       else
 935         context.draw_surface(leveldot_red,
 936             Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
 937     }
 938
 939   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 940     {
 941       if(i->invisible)
 942         continue;
 943
 944       if (i->teleport_dest != Vector(-1, -1))
 945         context.draw_surface(teleporterdot,
 946                 Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
 947
 948       else if (!i->map_message.empty() && !i->passive_message)
 949         context.draw_surface(messagedot,
 950                 Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
 951     }
 952
 953   tux->draw(context, offset);
 954   draw_status(context);
 955 }
 956
 957 void
 958 WorldMap::draw_status(DrawingContext& context)
 959 {
 960   char str[80];
 961   sprintf(str, " %d", total_stats.get_points(SCORE_STAT));
 962
 963   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 964   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 965
 966   sprintf(str, "%d", player_status.distros);
 967   context.draw_text(white_text, _("COINS"), Vector(screen->w/2 - 16*5, 0),
 968       LEFT_ALLIGN, LAYER_FOREGROUND1);
 969   context.draw_text(gold_text, str, Vector(screen->w/2 + (16*5)/2, 0),
 970         LEFT_ALLIGN, LAYER_FOREGROUND1);
 971
 972   if (player_status.lives >= 5)
 973     {
 974       sprintf(str, "%dx", player_status.lives);
 975       context.draw_text(gold_text, str,
 976           Vector(screen->w - gold_text->get_text_width(str) - tux_life->w, 0),
 977           LEFT_ALLIGN, LAYER_FOREGROUND1);
 978       context.draw_surface(tux_life, Vector(screen->w -
 979             gold_text->get_text_width("9"), 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 980     }
 981   else
 982     {
 983       for(int i= 0; i < player_status.lives; ++i)
 984         context.draw_surface(tux_life,
 985             Vector(screen->w - tux_life->w*4 + (tux_life->w*i), 0),
 986             LAYER_FOREGROUND1);
 987     }
 988   context.draw_text(white_text, _("LIVES"),
 989       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
 990       LEFT_ALLIGN, LAYER_FOREGROUND1);
 991
 992   if (!tux->is_moving())
 993     {
 994       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 995         {
 996           if (i->pos == tux->get_tile_pos())
 997             {
 998               if(i->title == "")
 999                 get_level_title(*i);
1000
1001               context.draw_text(white_text, i->title,
1002                   Vector(screen->w/2,
1003                          screen->h - white_text->get_height() - 30),
1004                   CENTER_ALLIGN, LAYER_FOREGROUND1);
1005
1006               i->statistics.draw_worldmap_info(context);
1007               break;
1008             }
1009         }
1010       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1011         {
1012           if (i->pos == tux->get_tile_pos())
1013             {
1014                /* Display an in-map message in the map, if any as been selected */
1015               if(!i->map_message.empty() && !i->passive_message)
1016                 context.draw_text(gold_text, i->map_message,
1017                     Vector(screen->w/2,
1018                            screen->h - white_text->get_height() - 60),
1019                     CENTER_ALLIGN, LAYER_FOREGROUND1);
1020               break;
1021             }
1022         }
1023     }
1024   /* Display a passive message in the map, if needed */
1025   if(passive_message_timer.check())
1026     context.draw_text(gold_text, passive_message,
1027             Vector(screen->w/2, screen->h - white_text->get_height() - 60),
1028             CENTER_ALLIGN, LAYER_FOREGROUND1);
1029 }
1030
1031 void
1032 WorldMap::display()
1033 {
1034   Menu::set_current(0);
1035
1036   quit = false;
1037
1038   song = SoundManager::get()->load_music(datadir +  "/music/" + music);
1039   SoundManager::get()->play_music(song);
1040
1041   if(!intro_displayed && intro_filename != "") {
1042     std::string filename = levels_path + intro_filename;
1043     display_text_file(filename, SCROLL_SPEED_MESSAGE,
1044                       white_big_text, white_text, white_small_text, blue_text);
1045     intro_displayed = true;
1046   }
1047
1048   Uint32 lastticks = SDL_GetTicks();
1049   DrawingContext context;
1050   while(!quit) {
1051     Uint32 ticks = SDL_GetTicks();
1052     float elapsed_time = float(ticks - lastticks) / 1000;
1053     global_time += elapsed_time;
1054     lastticks = ticks;
1055
1056     // 40 fps minimum
1057     if(elapsed_time > .025)
1058       elapsed_time = .025;
1059
1060     Vector tux_pos = tux->get_pos();
1061
1062     offset.x = -tux_pos.x + screen->w/2;
1063     offset.y = -tux_pos.y + screen->h/2;
1064
1065     if (offset.x > 0) offset.x = 0;
1066     if (offset.y > 0) offset.y = 0;
1067
1068     if (offset.x < screen->w - width*32) offset.x = screen->w - width*32;
1069     if (offset.y < screen->h - height*32) offset.y = screen->h - height*32;
1070
1071     draw(context, offset);
1072     get_input();
1073     update(elapsed_time);
1074
1075     if(Menu::current()) {
1076       Menu::current()->draw(context);
1077       mouse_cursor->draw(context);
1078     }
1079
1080     context.do_drawing();
1081   }
1082 }
1083
1084 void
1085 WorldMap::savegame(const std::string& filename)
1086 {
1087   if(filename == "")
1088     return;
1089
1090   std::ofstream file(filename.c_str(), std::ios::out);
1091   lisp::Writer writer(file);
1092
1093   int nb_solved_levels = 0, total_levels = 0;
1094   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
1095     ++total_levels;
1096     if (i->solved)
1097       ++nb_solved_levels;
1098   }
1099   char nb_solved_levels_str[80], total_levels_str[80];
1100   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1101   sprintf(total_levels_str, "%d", total_levels);
1102
1103   writer.write_comment("Worldmap save file");
1104
1105   writer.start_list("supertux-savegame");
1106
1107   writer.write_int("version", 1);
1108   writer.write_string("title",
1109       std::string(name + " - " + nb_solved_levels_str+"/"+total_levels_str));
1110   writer.write_string("map", map_filename);
1111   writer.write_bool("intro-displayed", intro_displayed);
1112
1113   writer.start_list("tux");
1114
1115   writer.write_float("x", tux->get_tile_pos().x);
1116   writer.write_float("y", tux->get_tile_pos().y);
1117   writer.write_string("back", direction_to_string(tux->back_direction));
1118   player_status.write(writer);
1119   writer.write_string("back", direction_to_string(tux->back_direction));
1120
1121   writer.end_list("tux");
1122
1123   writer.start_list("levels");
1124
1125   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1126     {
1127       if (i->solved)
1128         {
1129         writer.start_list("level");
1130
1131         writer.write_string("name", i->name);
1132         writer.write_bool("solved", true);
1133         i->statistics.write(writer);
1134
1135         writer.end_list("level");
1136         }
1137     }
1138
1139   writer.end_list("levels");
1140
1141   writer.end_list("supertux-savegame");
1142 }
1143
1144 void
1145 WorldMap::loadgame(const std::string& filename)
1146 {
1147   std::cout << "loadgame: " << filename << std::endl;
1148   savegame_file = filename;
1149
1150   try {
1151     lisp::Parser parser;
1152     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
1153
1154     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
1155     if(!savegame)
1156       throw std::runtime_error("File is not a supertux-savegame file.");
1157
1158     /* Get the Map filename and then load it before setting level settings */
1159     std::string cur_map_filename = map_filename;
1160     savegame->get("map", map_filename);
1161     load_map();
1162
1163     savegame->get("intro-displayed", intro_displayed);
1164     savegame->get("lives", player_status.lives);
1165     savegame->get("distros", player_status.distros);
1166     savegame->get("max-score-multiplier", player_status.max_score_multiplier);
1167     if (player_status.lives < 0)
1168       player_status.reset();
1169
1170     const lisp::Lisp* tux_lisp = savegame->get_lisp("tux");
1171     if(tux)
1172     {
1173       Vector p;
1174       std::string back_str = "none";
1175
1176       tux_lisp->get("x", p.x);
1177       tux_lisp->get("y", p.y);
1178       tux_lisp->get("back", back_str);
1179       player_status.read(*tux_lisp);
1180
1181       tux->back_direction = string_to_direction(back_str);
1182       tux->set_tile_pos(p);
1183     }
1184
1185     const lisp::Lisp* levels_lisp = savegame->get_lisp("levels");
1186     if(levels_lisp) {
1187       lisp::ListIterator iter(levels_lisp);
1188       while(iter.next()) {
1189         if(iter.item() == "level") {
1190           std::string name;
1191           bool solved = false;
1192
1193           const lisp::Lisp* level = iter.lisp();
1194           level->get("name", name);
1195           level->get("solved", solved);
1196
1197           for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1198           {
1199             if (name == i->name)
1200             {
1201               i->solved = solved;
1202               i->statistics.parse(*level);
1203               break;
1204             }
1205           }
1206         } else {
1207           std::cerr << "Unknown token '" << iter.item()
1208             << "' in levels block in worldmap.\n";
1209         }
1210       }
1211     }
1212   } catch(std::exception& e) {
1213     std::cerr << "Problem loading game '" << filename << "': " << e.what()
1214       << "\n";
1215     load_map();
1216     player_status.reset();
1217   }
1218
1219   calculate_total_stats();
1220 }
1221
1222 void
1223 WorldMap::loadmap(const std::string& filename)
1224 {
1225   savegame_file = "";
1226   map_filename = filename;
1227   load_map();
1228 }
1229
1230 } // namespace WorldMapNS