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
  20 #include <iostream>
  21 #include <fstream>
  22 #include <vector>
  23 #include <cassert>
  24 #include <unistd.h>
  25
  26 #include "app/globals.h"
  27 #include "video/surface.h"
  28 #include "video/screen.h"
  29 #include "video/drawing_context.h"
  30 #include "utils/lispreader.h"
  31 #include "utils/lispwriter.h"
  32 #include "special/frame_rate.h"
  33 #include "gameloop.h"
  34 #include "app/setup.h"
  35 #include "sector.h"
  36 #include "worldmap.h"
  37 #include "audio/sound_manager.h"
  38 #include "resources.h"
  39 #include "app/gettext.h"
  40 #include "misc.h"
  41
  42 #define map_message_TIME 2800
  43
  44 Menu* worldmap_menu  = 0;
  45
  46 namespace WorldMapNS {
  47
  48 Direction reverse_dir(Direction direction)
  49 {
  50   switch(direction)
  51     {
  52     case D_WEST:
  53       return D_EAST;
  54     case D_EAST:
  55       return D_WEST;
  56     case D_NORTH:
  57       return D_SOUTH;
  58     case D_SOUTH:
  59       return D_NORTH;
  60     case D_NONE:
  61       return D_NONE;
  62     }
  63   return D_NONE;
  64 }
  65
  66 std::string
  67 direction_to_string(Direction direction)
  68 {
  69   switch(direction)
  70     {
  71     case D_WEST:
  72       return "west";
  73     case D_EAST:
  74       return "east";
  75     case D_NORTH:
  76       return "north";
  77     case D_SOUTH:
  78       return "south";
  79     default:
  80       return "none";
  81     }
  82 }
  83
  84 Direction
  85 string_to_direction(const std::string& directory)
  86 {
  87   if (directory == "west")
  88     return D_WEST;
  89   else if (directory == "east")
  90     return D_EAST;
  91   else if (directory == "north")
  92     return D_NORTH;
  93   else if (directory == "south")
  94     return D_SOUTH;
  95   else
  96     return D_NONE;
  97 }
  98
  99 TileManager::TileManager()
 100 {
 101   std::string stwt_filename = datadir +  "/images/worldmap/antarctica.stwt";
 102   lisp_object_t* root_obj = lisp_read_from_file(stwt_filename);
 103
 104   if (!root_obj)
 105     Termination::abort("Couldn't load file", stwt_filename);
 106
 107   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap-tiles") == 0)
 108     {
 109       lisp_object_t* cur = lisp_cdr(root_obj);
 110
 111       while(!lisp_nil_p(cur))
 112         {
 113           lisp_object_t* element = lisp_car(cur);
 114
 115           if (strcmp(lisp_symbol(lisp_car(element)), "tile") == 0)
 116             {
 117               int id = 0;
 118
 119               Tile* tile = new Tile;
 120               tile->north = tile->east = tile->south = tile->west = true;
 121               tile->stop  = true;
 122               tile->auto_walk = false;
 123
 124               LispReader reader(lisp_cdr(element));
 125               reader.read_int("id", id);
 126
 127               std::string temp;
 128               reader.read_string("possible-directions", temp);
 129               if(!temp.empty())
 130                 {
 131                 tile->north = tile->east = tile->south = tile->west = false;
 132                 if(temp.find("north") != std::string::npos)
 133                   tile->north = true;
 134                 if(temp.find("south") != std::string::npos)
 135                   tile->south = true;
 136                 if(temp.find("east") != std::string::npos)
 137                   tile->east = true;
 138                 if(temp.find("west") != std::string::npos)
 139                   tile->west = true;
 140                 }
 141
 142               /* For backward compatibility */
 143               reader.read_bool("north", tile->north);
 144               reader.read_bool("south", tile->south);
 145               reader.read_bool("west",  tile->west);
 146               reader.read_bool("east",  tile->east);
 147
 148               reader.read_bool("stop",  tile->stop);
 149               reader.read_bool("auto-walk",  tile->auto_walk);
 150
 151               reader.read_string("one-way", temp);
 152               tile->one_way = BOTH_WAYS;
 153               if(!temp.empty())
 154                 {
 155                 if(temp == "north-south")
 156                   tile->one_way = NORTH_SOUTH_WAY;
 157                 else if(temp == "south-north")
 158                   tile->one_way = SOUTH_NORTH_WAY;
 159                 else if(temp == "east-west")
 160                   tile->one_way = EAST_WEST_WAY;
 161                 else if(temp == "west-east")
 162                   tile->one_way = WEST_EAST_WAY;
 163                 }
 164
 165               std::vector<std::string> filenames;
 166               reader.read_string_vector("image", filenames);
 167
 168               if(filenames.size() == 0)
 169                 std::cerr << "Warning: no image specified for tile " << id
 170                           << ".\nIgnoring...\n" << std::endl;
 171
 172               for(int i = 0; i < filenames.size(); i++)
 173                 {
 174                 Surface* image = new Surface(
 175                          datadir +  "/images/worldmap/" + filenames[i], true);
 176                 tile->images.push_back(image);
 177                 }
 178
 179               tile->anim_speed = 25;
 180               reader.read_int("anim-speed", tile->anim_speed);
 181
 182
 183               if (id >= int(tiles.size()))
 184                 tiles.resize(id+1);
 185
 186               tiles[id] = tile;
 187             }
 188           else
 189             {
 190               puts("Unhandled symbol");
 191             }
 192
 193           cur = lisp_cdr(cur);
 194         }
 195     }
 196   else
 197     {
 198       assert(0);
 199     }
 200
 201   lisp_free(root_obj);
 202 }
 203
 204 TileManager::~TileManager()
 205 {
 206   for(std::vector<Tile*>::iterator i = tiles.begin(); i != tiles.end(); ++i)
 207     delete *i;
 208 }
 209
 210 Tile*
 211 TileManager::get(int i)
 212 {
 213   assert(i >=0 && i < int(tiles.size()));
 214   return tiles[i];
 215 }
 216
 217 //---------------------------------------------------------------------------
 218
 219 Tux::Tux(WorldMap* worldmap_)
 220   : worldmap(worldmap_)
 221 {
 222   largetux_sprite = new Surface(datadir +  "/images/worldmap/tux.png", true);
 223   firetux_sprite = new Surface(datadir +  "/images/worldmap/firetux.png", true);
 224   smalltux_sprite = new Surface(datadir +  "/images/worldmap/smalltux.png", true);
 225
 226   offset = 0;
 227   moving = false;
 228   tile_pos.x = worldmap->get_start_x();
 229   tile_pos.y = worldmap->get_start_y();
 230   direction = D_NONE;
 231   input_direction = D_NONE;
 232 }
 233
 234 Tux::~Tux()
 235 {
 236   delete smalltux_sprite;
 237   delete firetux_sprite;
 238   delete largetux_sprite;
 239 }
 240
 241 void
 242 Tux::draw(DrawingContext& context, const Vector& offset)
 243 {
 244   Vector pos = get_pos();
 245   switch (player_status.bonus)
 246     {
 247     case PlayerStatus::GROWUP_BONUS:
 248       context.draw_surface(largetux_sprite,
 249           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 250       break;
 251     case PlayerStatus::FLOWER_BONUS:
 252       context.draw_surface(firetux_sprite,
 253           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 254       break;
 255     case PlayerStatus::NO_BONUS:
 256       context.draw_surface(smalltux_sprite,
 257           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 258       break;
 259     }
 260 }
 261
 262
 263 Vector
 264 Tux::get_pos()
 265 {
 266   float x = tile_pos.x * 32;
 267   float y = tile_pos.y * 32;
 268
 269   switch(direction)
 270     {
 271     case D_WEST:
 272       x -= offset - 32;
 273       break;
 274     case D_EAST:
 275       x += offset - 32;
 276       break;
 277     case D_NORTH:
 278       y -= offset - 32;
 279       break;
 280     case D_SOUTH:
 281       y += offset - 32;
 282       break;
 283     case D_NONE:
 284       break;
 285     }
 286
 287   return Vector((int)x, (int)y);
 288 }
 289
 290 void
 291 Tux::stop()
 292 {
 293   offset = 0;
 294   direction = D_NONE;
 295   input_direction = D_NONE;
 296   moving = false;
 297 }
 298
 299 void
 300 Tux::set_direction(Direction dir)
 301 {
 302 input_direction = dir;
 303 }
 304
 305 void
 306 Tux::action(float delta)
 307 {
 308   if (!moving)
 309     {
 310       if (input_direction != D_NONE)
 311         {
 312           WorldMap::Level* level = worldmap->at_level();
 313
 314           // We got a new direction, so lets start walking when possible
 315           Vector next_tile;
 316           if ((!level || level->solved)
 317               && worldmap->path_ok(input_direction, tile_pos, &next_tile))
 318             {
 319               tile_pos = next_tile;
 320               moving = true;
 321               direction = input_direction;
 322               back_direction = reverse_dir(direction);
 323             }
 324           else if (input_direction == back_direction)
 325             {
 326               moving = true;
 327               direction = input_direction;
 328               tile_pos = worldmap->get_next_tile(tile_pos, direction);
 329               back_direction = reverse_dir(direction);
 330             }
 331         }
 332     }
 333   else
 334     {
 335       // Let tux walk a few pixels (20 pixel/sec)
 336       offset += 20.0f * delta;
 337
 338       if (offset > 32)
 339         { // We reached the next tile, so we check what to do now
 340           offset -= 32;
 341
 342           WorldMap::SpecialTile* special_tile = worldmap->at_special_tile();
 343           if(special_tile && special_tile->passive_message)
 344             {  // direction and the apply_action_ are opposites, since they "see"
 345                // directions in a different way
 346             if((direction == D_NORTH && special_tile->apply_action_south) ||
 347                (direction == D_SOUTH && special_tile->apply_action_north) ||
 348                (direction == D_WEST && special_tile->apply_action_east) ||
 349                (direction == D_EAST && special_tile->apply_action_west))
 350               {
 351               worldmap->passive_message = special_tile->map_message;
 352               worldmap->passive_message_timer.start(map_message_TIME);
 353               }
 354             }
 355
 356           if (worldmap->at(tile_pos)->stop ||
 357              (special_tile && !special_tile->passive_message) ||
 358               worldmap->at_level())
 359             {
 360               if(special_tile && !special_tile->map_message.empty() &&
 361                 !special_tile->passive_message)
 362                 worldmap->passive_message_timer.stop();
 363               stop();
 364             }
 365           else
 366             {
 367               if (worldmap->at(tile_pos)->auto_walk || direction != input_direction)
 368                 { // Turn to a new direction
 369                   Tile* tile = worldmap->at(tile_pos);
 370
 371                   if(direction != input_direction &&
 372                      ((tile->north && input_direction == D_NORTH) ||
 373                      (tile->south && input_direction == D_SOUTH) ||
 374                      (tile->east && input_direction == D_EAST) ||
 375                      (tile->west && input_direction == D_WEST)))
 376                     {  // player has changed direction during auto-movement
 377                     direction = input_direction;
 378                     back_direction = reverse_dir(direction);
 379                     }
 380                   else if(direction != input_direction)
 381                     {  // player has changed to impossible tile
 382                       back_direction = reverse_dir(direction);
 383                       stop();
 384                     }
 385                   else
 386                     {
 387                     Direction dir = D_NONE;
 388
 389                     if (tile->north && back_direction != D_NORTH)
 390                       dir = D_NORTH;
 391                     else if (tile->south && back_direction != D_SOUTH)
 392                       dir = D_SOUTH;
 393                     else if (tile->east && back_direction != D_EAST)
 394                       dir = D_EAST;
 395                     else if (tile->west && back_direction != D_WEST)
 396                       dir = D_WEST;
 397
 398                     if (dir != D_NONE)
 399                       {
 400                       direction = dir;
 401                       input_direction = direction;
 402                       back_direction = reverse_dir(direction);
 403                       }
 404                     else
 405                       {
 406                       // Should never be reached if tiledata is good
 407                       stop();
 408                       return;
 409                       }
 410                     }
 411                   }
 412
 413               // Walk automatically to the next tile
 414               if(direction != D_NONE)
 415                 {
 416                 Vector next_tile;
 417                 if (worldmap->path_ok(direction, tile_pos, &next_tile))
 418                   {
 419                   tile_pos = next_tile;
 420                   }
 421                 else
 422                   {
 423                   puts("Tilemap data is buggy");
 424                   stop();
 425                   }
 426                 }
 427             }
 428         }
 429     }
 430 }
 431
 432 //---------------------------------------------------------------------------
 433 Tile::Tile()
 434 {
 435 }
 436
 437 Tile::~Tile()
 438 {
 439   for(std::vector<Surface*>::iterator i = images.begin(); i != images.end(); i++)
 440     delete *i;
 441 }
 442
 443
 444 void
 445 Tile::draw(DrawingContext& context, Vector pos)
 446 {
 447   // same code as from tile_manager.cpp draw_tile()
 448
 449   if(!images.size())
 450     return;
 451
 452   if(images.size() > 1)
 453     {
 454     size_t frame
 455       = ((global_frame_counter*25) / anim_speed) % images.size();
 456
 457     context.draw_surface(images[frame], pos, LAYER_TILES);
 458     }
 459   else if (images.size() == 1)
 460     {
 461     context.draw_surface(images[0], pos, LAYER_TILES);
 462     }
 463 }
 464
 465 //---------------------------------------------------------------------------
 466
 467 WorldMap::WorldMap()
 468 {
 469   tile_manager = new TileManager();
 470   //tux = new Tux(this);
 471
 472   width  = 20;
 473   height = 15;
 474
 475   start_x = 4;
 476   start_y = 5;
 477
 478   tux = new Tux(this);
 479
 480   leveldot_green = new Surface(datadir +  "/images/worldmap/leveldot_green.png", true);
 481   leveldot_red = new Surface(datadir +  "/images/worldmap/leveldot_red.png", true);
 482   messagedot   = new Surface(datadir +  "/images/worldmap/messagedot.png", true);
 483   teleporterdot   = new Surface(datadir +  "/images/worldmap/teleporterdot.png", true);
 484
 485   enter_level = false;
 486
 487   name = "<no title>";
 488   music = "SALCON.MOD";
 489
 490   global_frame_counter = 0;
 491   frame_timer.init(true);
 492
 493   total_stats.reset();
 494 }
 495
 496 WorldMap::~WorldMap()
 497 {
 498   delete tux;
 499   delete tile_manager;
 500
 501   delete leveldot_green;
 502   delete leveldot_red;
 503   delete messagedot;
 504   delete teleporterdot;
 505 }
 506
 507 // Don't forget to set map_filename before calling this
 508 void
 509 WorldMap::load_map()
 510 {
 511   lisp_object_t* root_obj = lisp_read_from_file(datadir + "/levels/worldmap/" + map_filename);
 512   if (!root_obj)
 513     Termination::abort("Couldn't load file", datadir + "/levels/worldmap/" + map_filename);
 514
 515   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap") == 0)
 516     {
 517       lisp_object_t* cur = lisp_cdr(root_obj);
 518
 519       while(!lisp_nil_p(cur))
 520         {
 521           lisp_object_t* element = lisp_car(cur);
 522
 523           if (strcmp(lisp_symbol(lisp_car(element)), "tilemap") == 0)
 524             {
 525               LispReader reader(lisp_cdr(element));
 526               reader.read_int("width",  width);
 527               reader.read_int("height", height);
 528               reader.read_int_vector("data", tilemap);
 529             }
 530           else if (strcmp(lisp_symbol(lisp_car(element)), "properties") == 0)
 531             {
 532               LispReader reader(lisp_cdr(element));
 533               reader.read_string("name", name, true);
 534               reader.read_string("music", music);
 535               reader.read_int("start_pos_x", start_x);
 536               reader.read_int("start_pos_y", start_y);
 537             }
 538           else if (strcmp(lisp_symbol(lisp_car(element)), "special-tiles") == 0 ||
 539                    strcmp(lisp_symbol(lisp_car(element)), "levels") == 0)
 540             {
 541               lisp_object_t* cur = lisp_cdr(element);
 542
 543               while(!lisp_nil_p(cur))
 544                 {
 545                   lisp_object_t* element = lisp_car(cur);
 546
 547                   if (strcmp(lisp_symbol(lisp_car(element)), "special-tile") == 0)
 548                     {
 549                       SpecialTile special_tile;
 550                       LispReader reader(lisp_cdr(element));
 551
 552                       reader.read_float("x", special_tile.pos.x);
 553                       reader.read_float("y", special_tile.pos.y);
 554
 555                       special_tile.map_message.erase();
 556                       reader.read_string("map-message", special_tile.map_message);
 557                       special_tile.passive_message = false;
 558                       reader.read_bool("passive-message", special_tile.passive_message);
 559
 560                       special_tile.teleport_dest = Vector(-1,-1);
 561                       reader.read_float("teleport-to-x", special_tile.teleport_dest.x);
 562                       reader.read_float("teleport-to-y", special_tile.teleport_dest.y);
 563
 564                       special_tile.invisible = false;
 565                       reader.read_bool("invisible-tile", special_tile.invisible);
 566
 567                       special_tile.apply_action_north = special_tile.apply_action_south =
 568                           special_tile.apply_action_east = special_tile.apply_action_west =
 569                           true;
 570
 571                       std::string apply_direction;
 572                       reader.read_string("apply-to-direction", apply_direction);
 573                       if(!apply_direction.empty())
 574                         {
 575                         special_tile.apply_action_north = special_tile.apply_action_south =
 576                             special_tile.apply_action_east = special_tile.apply_action_west =
 577                             false;
 578                         if(apply_direction.find("north") != std::string::npos)
 579                           special_tile.apply_action_north = true;
 580                         if(apply_direction.find("south") != std::string::npos)
 581                           special_tile.apply_action_south = true;
 582                         if(apply_direction.find("east") != std::string::npos)
 583                           special_tile.apply_action_east = true;
 584                         if(apply_direction.find("west") != std::string::npos)
 585                           special_tile.apply_action_west = true;
 586                         }
 587
 588                       special_tiles.push_back(special_tile);
 589                     }
 590
 591                   else if (strcmp(lisp_symbol(lisp_car(element)), "level") == 0)
 592                     {
 593                       Level level;
 594                       LispReader reader(lisp_cdr(element));
 595                       level.solved = false;
 596
 597                       level.north = true;
 598                       level.east  = true;
 599                       level.south = true;
 600                       level.west  = true;
 601
 602                       reader.read_string("extro-filename", level.extro_filename);
 603                       reader.read_string("next-worldmap", level.next_worldmap);
 604
 605                       level.quit_worldmap = false;
 606                       reader.read_bool("quit-worldmap", level.quit_worldmap);
 607
 608                       reader.read_string("name", level.name, true);
 609                       reader.read_float("x", level.pos.x);
 610                       reader.read_float("y", level.pos.y);
 611
 612                       level.auto_path = true;
 613                       reader.read_bool("auto-path", level.auto_path);
 614
 615                       level.vertical_flip = false;
 616                       reader.read_bool("vertical-flip", level.vertical_flip);
 617
 618                       levels.push_back(level);
 619                     }
 620
 621                   cur = lisp_cdr(cur);
 622                 }
 623             }
 624           else
 625             {
 626
 627             }
 628
 629           cur = lisp_cdr(cur);
 630         }
 631     }
 632
 633     lisp_free(root_obj);
 634 }
 635
 636 void WorldMap::get_level_title(Level& level)
 637 {
 638   /** get special_tile's title */
 639   level.title = "<no title>";
 640
 641   LispReader* reader = LispReader::load(datadir + "/levels/" + level.name, "supertux-level");
 642   if(!reader)
 643     {
 644     std::cerr << "Error: Could not open level file. Ignoring...\n";
 645     return;
 646     }
 647
 648   reader->read_string("name", level.title, true);
 649   delete reader;
 650 }
 651
 652 void WorldMap::calculate_total_stats()
 653 {
 654   total_stats.reset();
 655   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 656     {
 657     if (i->solved)
 658       {
 659       total_stats += i->statistics;
 660       }
 661     }
 662 }
 663
 664 void
 665 WorldMap::on_escape_press()
 666 {
 667   // Show or hide the menu
 668   if(!Menu::current())
 669     {
 670     Menu::set_current(worldmap_menu);
 671     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 672     }
 673   else
 674     Menu::set_current(0);
 675 }
 676
 677 void
 678 WorldMap::get_input()
 679 {
 680   enter_level = false;
 681
 682   SDL_Event event;
 683   while (SDL_PollEvent(&event))
 684     {
 685       if (Menu::current())
 686         {
 687           Menu::current()->event(event);
 688         }
 689       else
 690         {
 691           switch(event.type)
 692             {
 693             case SDL_QUIT:
 694               Termination::abort("Received window close", "");
 695               break;
 696
 697             case SDL_KEYDOWN:
 698               switch(event.key.keysym.sym)
 699                 {
 700                 case SDLK_ESCAPE:
 701                   on_escape_press();
 702                   break;
 703                 case SDLK_LCTRL:
 704                 case SDLK_RETURN:
 705                   enter_level = true;
 706                   break;
 707
 708                 case SDLK_LEFT:
 709                   tux->set_direction(D_WEST);
 710                   break;
 711                 case SDLK_RIGHT:
 712                   tux->set_direction(D_EAST);
 713                   break;
 714                 case SDLK_UP:
 715                   tux->set_direction(D_NORTH);
 716                   break;
 717                 case SDLK_DOWN:
 718                   tux->set_direction(D_SOUTH);
 719                   break;
 720
 721                 default:
 722                   break;
 723                 }
 724               break;
 725
 726             case SDL_JOYHATMOTION:
 727               if(event.jhat.value & SDL_HAT_UP) {
 728                 tux->set_direction(D_NORTH);
 729               } else if(event.jhat.value & SDL_HAT_DOWN) {
 730                 tux->set_direction(D_SOUTH);
 731               } else if(event.jhat.value & SDL_HAT_LEFT) {
 732                 tux->set_direction(D_WEST);
 733               } else if(event.jhat.value & SDL_HAT_RIGHT) {
 734                 tux->set_direction(D_EAST);
 735               }
 736               break;
 737
 738             case SDL_JOYAXISMOTION:
 739               if (event.jaxis.axis == joystick_keymap.x_axis)
 740                 {
 741                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 742                     tux->set_direction(D_WEST);
 743                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 744                     tux->set_direction(D_EAST);
 745                 }
 746               else if (event.jaxis.axis == joystick_keymap.y_axis)
 747                 {
 748                   if (event.jaxis.value > joystick_keymap.dead_zone)
 749                     tux->set_direction(D_SOUTH);
 750                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 751                     tux->set_direction(D_NORTH);
 752                 }
 753               break;
 754
 755             case SDL_JOYBUTTONDOWN:
 756               if (event.jbutton.button == joystick_keymap.b_button)
 757                 enter_level = true;
 758               else if (event.jbutton.button == joystick_keymap.start_button)
 759                 on_escape_press();
 760               break;
 761
 762             default:
 763               break;
 764             }
 765         }
 766     }
 767 }
 768
 769 Vector
 770 WorldMap::get_next_tile(Vector pos, Direction direction)
 771 {
 772   switch(direction)
 773     {
 774     case D_WEST:
 775       pos.x -= 1;
 776       break;
 777     case D_EAST:
 778       pos.x += 1;
 779       break;
 780     case D_NORTH:
 781       pos.y -= 1;
 782       break;
 783     case D_SOUTH:
 784       pos.y += 1;
 785       break;
 786     case D_NONE:
 787       break;
 788     }
 789   return pos;
 790 }
 791
 792 bool
 793 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 794 {
 795   *new_pos = get_next_tile(old_pos, direction);
 796
 797   if (!(new_pos->x >= 0 && new_pos->x < width
 798         && new_pos->y >= 0 && new_pos->y < height))
 799     { // New position is outsite the tilemap
 800       return false;
 801     }
 802   else if(at(*new_pos)->one_way != BOTH_WAYS)
 803     {
 804 std::cerr << "one way only\n";
 805       if((at(*new_pos)->one_way == NORTH_SOUTH_WAY && direction != D_SOUTH) ||
 806          (at(*new_pos)->one_way == SOUTH_NORTH_WAY && direction != D_NORTH) ||
 807          (at(*new_pos)->one_way == EAST_WEST_WAY && direction != D_WEST) ||
 808          (at(*new_pos)->one_way == WEST_EAST_WAY && direction != D_EAST))
 809         return false;
 810       return true;
 811     }
 812   else
 813     { // Check if we the tile allows us to go to new_pos
 814       switch(direction)
 815         {
 816         case D_WEST:
 817           return (at(old_pos)->west && at(*new_pos)->east);
 818
 819         case D_EAST:
 820           return (at(old_pos)->east && at(*new_pos)->west);
 821
 822         case D_NORTH:
 823           return (at(old_pos)->north && at(*new_pos)->south);
 824
 825         case D_SOUTH:
 826           return (at(old_pos)->south && at(*new_pos)->north);
 827
 828         case D_NONE:
 829           assert(!"path_ok() can't work if direction is NONE");
 830         }
 831       return false;
 832     }
 833 }
 834
 835 void
 836 WorldMap::update(float delta)
 837 {
 838   if(!frame_timer.check())
 839     {
 840     frame_timer.start(25);
 841     global_frame_counter++;
 842     }
 843
 844   if (enter_level && !tux->is_moving())
 845     {
 846       /* Check special tile action */
 847       SpecialTile* special_tile = at_special_tile();
 848       if(special_tile)
 849         {
 850         if (special_tile->teleport_dest != Vector(-1,-1))
 851           {
 852           // TODO: an animation, camera scrolling or a fading would be a nice touch
 853           SoundManager::get()->play_sound(IDToSound(SND_WARP));
 854           tux->back_direction = D_NONE;
 855           tux->set_tile_pos(special_tile->teleport_dest);
 856           SDL_Delay(1000);
 857           }
 858         }
 859
 860       /* Check level action */
 861       bool level_finished = true;
 862       Level* level = at_level();
 863       if (!level)
 864         {
 865         std::cout << "No level to enter at: "
 866           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y << std::endl;
 867         return;
 868         }
 869
 870
 871           if (level->pos == tux->get_tile_pos())
 872             {
 873               PlayerStatus old_player_status = player_status;
 874
 875               std::cout << "Enter the current level: " << level->name << std::endl;
 876               // do a shriking fade to the level
 877               shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),(level->pos.y*32 + 16
 878                       + offset.y)), 500);
 879               GameSession session(datadir +  "/levels/" + level->name,
 880                                   ST_GL_LOAD_LEVEL_FILE, level->vertical_flip,
 881                                   &level->statistics);
 882
 883               switch (session.run())
 884                 {
 885                 case GameSession::ES_LEVEL_FINISHED:
 886                   {
 887                     level_finished = true;
 888                     bool old_level_state = level->solved;
 889                     level->solved = true;
 890
 891                     // deal with statistics
 892                     level->statistics.merge(global_stats);
 893                     calculate_total_stats();
 894
 895                     if (session.get_current_sector()->player->got_power !=
 896                           session.get_current_sector()->player->NONE_POWER)
 897                       player_status.bonus = PlayerStatus::FLOWER_BONUS;
 898                     else if (session.get_current_sector()->player->size == BIG)
 899                       player_status.bonus = PlayerStatus::GROWUP_BONUS;
 900                     else
 901                       player_status.bonus = PlayerStatus::NO_BONUS;
 902
 903                     if (old_level_state != level->solved && level->auto_path)
 904                       { // Try to detect the next direction to which we should walk
 905                         // FIXME: Mostly a hack
 906                         Direction dir = D_NONE;
 907
 908                         Tile* tile = at(tux->get_tile_pos());
 909
 910                         if (tile->north && tux->back_direction != D_NORTH)
 911                           dir = D_NORTH;
 912                         else if (tile->south && tux->back_direction != D_SOUTH)
 913                           dir = D_SOUTH;
 914                         else if (tile->east && tux->back_direction != D_EAST)
 915                           dir = D_EAST;
 916                         else if (tile->west && tux->back_direction != D_WEST)
 917                           dir = D_WEST;
 918
 919                         if (dir != D_NONE)
 920                           {
 921                             tux->set_direction(dir);
 922                             //tux->update(delta);
 923                           }
 924
 925                         std::cout << "Walk to dir: " << dir << std::endl;
 926                       }
 927                   }
 928
 929                   break;
 930                 case GameSession::ES_LEVEL_ABORT:
 931                   level_finished = false;
 932                   /* In case the player's abort the level, keep it using the old
 933                       status. But the minimum lives and no bonus. */
 934                   player_status.distros = old_player_status.distros;
 935                   player_status.lives = std::min(old_player_status.lives, player_status.lives);
 936                   player_status.bonus = player_status.NO_BONUS;
 937
 938                   break;
 939                 case GameSession::ES_GAME_OVER:
 940                   {
 941                   level_finished = false;
 942                   /* draw an end screen */
 943                   /* TODO: in the future, this should make a dialog a la SuperMario, asking
 944                   if the player wants to restart the world map with no score and from
 945                   level 1 */
 946                   char str[80];
 947
 948                   DrawingContext context;
 949                   context.draw_gradient(Color (200,240,220), Color(200,200,220),
 950                       LAYER_BACKGROUND0);
 951
 952                   context.draw_text(blue_text, _("GAMEOVER"),
 953                       Vector(screen->w/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 954
 955                   sprintf(str, _("COINS: %d"), player_status.distros);
 956                   context.draw_text(gold_text, str,
 957                       Vector(screen->w/2, screen->w - 32), CENTER_ALLIGN, LAYER_FOREGROUND1);
 958
 959                   total_stats.draw_message_info(context, _("Total Statistics"));
 960
 961                   context.do_drawing();
 962
 963                   SDL_Event event;
 964                   wait_for_event(event,2000,6000,true);
 965
 966                   quit = true;
 967                   player_status.reset();
 968                   break;
 969                   }
 970                 case GameSession::ES_NONE:
 971                   assert(false);
 972                   // Should never be reached
 973                   break;
 974                 }
 975
 976               SoundManager::get()->play_music(song);
 977               Menu::set_current(0);
 978               if (!savegame_file.empty())
 979                 savegame(savegame_file);
 980             }
 981       /* The porpose of the next checking is that if the player lost
 982          the level (in case there is one), don't show anything */
 983       if(level_finished)
 984         {
 985         if (!level->extro_filename.empty())
 986           {
 987           // Display a text file
 988           display_text_file(level->extro_filename, SCROLL_SPEED_MESSAGE, white_big_text , white_text, white_small_text, blue_text );
 989           }
 990
 991         if (!level->next_worldmap.empty())
 992           {
 993           // Load given worldmap
 994           loadmap(level->next_worldmap);
 995           }
 996         if (level->quit_worldmap)
 997           quit = true;
 998         }
 999     }
1000   else
1001     {
1002       tux->action(delta);
1003 //      tux->set_direction(input_direction);
1004     }
1005
1006   Menu* menu = Menu::current();
1007   if(menu)
1008     {
1009       menu->action();
1010
1011       if(menu == worldmap_menu)
1012         {
1013           switch (worldmap_menu->check())
1014             {
1015             case MNID_RETURNWORLDMAP: // Return to game
1016               break;
1017             case MNID_QUITWORLDMAP: // Quit Worldmap
1018               quit = true;
1019               break;
1020             }
1021         }
1022       else if(menu == options_menu)
1023         {
1024           process_options_menu();
1025         }
1026     }
1027 }
1028
1029 Tile*
1030 WorldMap::at(Vector p)
1031 {
1032   assert(p.x >= 0
1033          && p.x < width
1034          && p.y >= 0
1035          && p.y < height);
1036
1037   int x = int(p.x);
1038   int y = int(p.y);
1039   return tile_manager->get(tilemap[width * y + x]);
1040 }
1041
1042 WorldMap::Level*
1043 WorldMap::at_level()
1044 {
1045   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1046     {
1047       if (i->pos == tux->get_tile_pos())
1048         return &*i;
1049     }
1050
1051   return 0;
1052 }
1053
1054 WorldMap::SpecialTile*
1055 WorldMap::at_special_tile()
1056 {
1057   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1058     {
1059       if (i->pos == tux->get_tile_pos())
1060         return &*i;
1061     }
1062
1063   return 0;
1064 }
1065
1066
1067 void
1068 WorldMap::draw(DrawingContext& context, const Vector& offset)
1069 {
1070   for(int y = 0; y < height; ++y)
1071     for(int x = 0; x < width; ++x)
1072       {
1073         Tile* tile = at(Vector(x, y));
1074         tile->draw(context, Vector(x*32 + offset.x, y*32 + offset.y));
1075       }
1076
1077   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1078     {
1079       if (i->solved)
1080         context.draw_surface(leveldot_green,
1081             Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1082       else
1083         context.draw_surface(leveldot_red,
1084             Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1085     }
1086
1087   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1088     {
1089       if(i->invisible)
1090         continue;
1091
1092       if (i->teleport_dest != Vector(-1, -1))
1093         context.draw_surface(teleporterdot,
1094                 Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1095
1096       else if (!i->map_message.empty() && !i->passive_message)
1097         context.draw_surface(messagedot,
1098                 Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1099     }
1100
1101   tux->draw(context, offset);
1102   draw_status(context);
1103 }
1104
1105 void
1106 WorldMap::draw_status(DrawingContext& context)
1107 {
1108   char str[80];
1109   sprintf(str, " %d", total_stats.get_points(SCORE_STAT));
1110
1111   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1112   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1113
1114   sprintf(str, "%d", player_status.distros);
1115   context.draw_text(white_text, _("COINS"), Vector(screen->w/2 - 16*5, 0),
1116       LEFT_ALLIGN, LAYER_FOREGROUND1);
1117   context.draw_text(gold_text, str, Vector(screen->w/2 + (16*5)/2, 0),
1118         LEFT_ALLIGN, LAYER_FOREGROUND1);
1119
1120   if (player_status.lives >= 5)
1121     {
1122       sprintf(str, "%dx", player_status.lives);
1123       context.draw_text(gold_text, str,
1124           Vector(screen->w - gold_text->get_text_width(str) - tux_life->w, 0),
1125           LEFT_ALLIGN, LAYER_FOREGROUND1);
1126       context.draw_surface(tux_life, Vector(screen->w -
1127             gold_text->get_text_width("9"), 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1128     }
1129   else
1130     {
1131       for(int i= 0; i < player_status.lives; ++i)
1132         context.draw_surface(tux_life,
1133             Vector(screen->w - tux_life->w*4 + (tux_life->w*i), 0),
1134             LAYER_FOREGROUND1);
1135     }
1136   context.draw_text(white_text, _("LIVES"),
1137       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
1138       LEFT_ALLIGN, LAYER_FOREGROUND1);
1139
1140   if (!tux->is_moving())
1141     {
1142       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1143         {
1144           if (i->pos == tux->get_tile_pos())
1145             {
1146               if(i->title == "")
1147                 get_level_title(*i);
1148
1149               context.draw_text(white_text, i->title,
1150                   Vector(screen->w/2,
1151                          screen->h - white_text->get_height() - 30),
1152                   CENTER_ALLIGN, LAYER_FOREGROUND1);
1153
1154               i->statistics.draw_worldmap_info(context);
1155               break;
1156             }
1157         }
1158       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1159         {
1160           if (i->pos == tux->get_tile_pos())
1161             {
1162                /* Display an in-map message in the map, if any as been selected */
1163               if(!i->map_message.empty() && !i->passive_message)
1164                 context.draw_text(gold_text, i->map_message,
1165                     Vector(screen->w/2,
1166                            screen->h - white_text->get_height() - 60),
1167                     CENTER_ALLIGN, LAYER_FOREGROUND1);
1168               break;
1169             }
1170         }
1171     }
1172   /* Display a passive message in the map, if needed */
1173   if(passive_message_timer.check())
1174     context.draw_text(gold_text, passive_message,
1175             Vector(screen->w/2, screen->h - white_text->get_height() - 60),
1176             CENTER_ALLIGN, LAYER_FOREGROUND1);
1177 }
1178
1179 void
1180 WorldMap::display()
1181 {
1182   Menu::set_current(0);
1183
1184   quit = false;
1185
1186   song = SoundManager::get()->load_music(datadir +  "/music/" + music);
1187   SoundManager::get()->play_music(song);
1188
1189   FrameRate frame_rate(10);
1190   frame_rate.set_frame_limit(false);
1191
1192   frame_rate.start();
1193
1194   DrawingContext context;
1195   while(!quit)
1196     {
1197       float delta = frame_rate.get();
1198
1199       delta *= 1.3f;
1200
1201       if (delta > 10.0f)
1202         delta = .3f;
1203
1204       frame_rate.update();
1205
1206       Vector tux_pos = tux->get_pos();
1207       if (1)
1208         {
1209           offset.x = -tux_pos.x + screen->w/2;
1210           offset.y = -tux_pos.y + screen->h/2;
1211
1212           if (offset.x > 0) offset.x = 0;
1213           if (offset.y > 0) offset.y = 0;
1214
1215           if (offset.x < screen->w - width*32) offset.x = screen->w - width*32;
1216           if (offset.y < screen->h - height*32) offset.y = screen->h - height*32;
1217         }
1218
1219       draw(context, offset);
1220       get_input();
1221       update(delta);
1222
1223       if(Menu::current())
1224         {
1225           Menu::current()->draw(context);
1226           mouse_cursor->draw(context);
1227         }
1228
1229       context.do_drawing();
1230
1231       SDL_Delay(20);
1232     }
1233 }
1234
1235 void
1236 WorldMap::savegame(const std::string& filename)
1237 {
1238   if(filename == "")
1239     return;
1240
1241   std::cout << "savegame: " << filename << std::endl;
1242
1243    std::ofstream file(filename.c_str(), std::ios::out);
1244    LispWriter* writer = new LispWriter(file);
1245
1246   int nb_solved_levels = 0, total_levels = 0;
1247   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1248     {
1249       ++total_levels;
1250       if (i->solved)
1251         ++nb_solved_levels;
1252     }
1253   char nb_solved_levels_str[80], total_levels_str[80];
1254   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1255   sprintf(total_levels_str, "%d", total_levels);
1256
1257   writer->write_comment("Worldmap save file");
1258
1259   writer->start_list("supertux-savegame");
1260
1261   writer->write_int("version", 1);
1262   writer->write_string("title", std::string(name + " - " + nb_solved_levels_str + "/" + total_levels_str));
1263   writer->write_string("map", map_filename);
1264   writer->write_int("lives", player_status.lives);
1265   writer->write_int("distros", player_status.lives);
1266
1267   writer->start_list("tux");
1268
1269   writer->write_float("x", tux->get_tile_pos().x);
1270   writer->write_float("y", tux->get_tile_pos().y);
1271   writer->write_string("back", direction_to_string(tux->back_direction));
1272   writer->write_string("bonus", bonus_to_string(player_status.bonus));
1273
1274   writer->end_list("tux");
1275
1276   writer->start_list("levels");
1277
1278   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1279     {
1280       if (i->solved)
1281         {
1282         writer->start_list("level");
1283
1284         writer->write_string("name", i->name);
1285         writer->write_bool("solved", true);
1286         i->statistics.write(*writer);
1287
1288         writer->end_list("level");
1289         }
1290     }
1291
1292   writer->end_list("levels");
1293
1294   writer->end_list("supertux-savegame");
1295 }
1296
1297 void
1298 WorldMap::loadgame(const std::string& filename)
1299 {
1300   std::cout << "loadgame: " << filename << std::endl;
1301   savegame_file = filename;
1302
1303   if (access(filename.c_str(), F_OK) != 0)
1304     {
1305     load_map();
1306
1307     player_status.reset();
1308
1309     return;
1310     }
1311
1312   lisp_object_t* savegame = lisp_read_from_file(filename);
1313   if (!savegame)
1314     {
1315       std::cout << "WorldMap:loadgame: File not found: " << filename << std::endl;
1316       load_map();
1317       return;
1318     }
1319
1320   lisp_object_t* cur = savegame;
1321
1322   if (strcmp(lisp_symbol(lisp_car(cur)), "supertux-savegame") != 0)
1323     {
1324     load_map();
1325     return;
1326     }
1327
1328   cur = lisp_cdr(cur);
1329   LispReader reader(cur);
1330
1331   /* Get the Map filename and then load it before setting level settings */
1332   std::string cur_map_filename = map_filename;
1333   reader.read_string("map", map_filename);
1334 //  if(cur_map_filename != map_filename)
1335     load_map();
1336
1337   reader.read_int("lives", player_status.lives);
1338   reader.read_int("distros", player_status.distros);
1339
1340   if (player_status.lives < 0)
1341     player_status.lives = START_LIVES;
1342
1343   lisp_object_t* tux_cur = 0;
1344   if (reader.read_lisp("tux", tux_cur))
1345     {
1346       Vector p;
1347       std::string back_str = "none";
1348       std::string bonus_str = "none";
1349
1350       LispReader tux_reader(tux_cur);
1351       tux_reader.read_float("x", p.x);
1352       tux_reader.read_float("y", p.y);
1353       tux_reader.read_string("back", back_str);
1354       tux_reader.read_string("bonus", bonus_str);
1355
1356       player_status.bonus = string_to_bonus(bonus_str);
1357       tux->back_direction = string_to_direction(back_str);
1358       tux->set_tile_pos(p);
1359     }
1360
1361   lisp_object_t* level_cur = 0;
1362   if (reader.read_lisp("levels", level_cur))
1363     {
1364       while(level_cur)
1365         {
1366           lisp_object_t* sym  = lisp_car(lisp_car(level_cur));
1367           lisp_object_t* data = lisp_cdr(lisp_car(level_cur));
1368
1369           if (strcmp(lisp_symbol(sym), "level") == 0)
1370             {
1371               std::string name;
1372               bool solved = false;
1373
1374               LispReader level_reader(data);
1375               level_reader.read_string("name", name);
1376               level_reader.read_bool("solved", solved);
1377
1378               for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1379                 {
1380                   if (name == i->name)
1381                     {
1382                     i->solved = solved;
1383                     i->statistics.parse(level_reader);
1384                     break;
1385                     }
1386                 }
1387             }
1388
1389           level_cur = lisp_cdr(level_cur);
1390         }
1391     }
1392
1393   lisp_free(savegame);
1394
1395   calculate_total_stats();
1396 }
1397
1398 void
1399 WorldMap::loadmap(const std::string& filename)
1400 {
1401   savegame_file = "";
1402   map_filename = filename;
1403   load_map();
1404 }
1405
1406 } // namespace WorldMapNS
1407
1408 /* Local Variables: */
1409 /* mode:c++ */
1410 /* End: */
1411