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::SpecialTile* special_tile = worldmap->at_special_tile();
 313
 314           // We got a new direction, so lets start walking when possible
 315           Vector next_tile;
 316           if ((!special_tile || special_tile->solved || special_tile->level_name.empty())
 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 || (special_tile &&
 357               !special_tile->passive_message))
 358             {
 359               if(special_tile && !special_tile->map_message.empty() &&
 360                 !special_tile->passive_message)
 361                 worldmap->passive_message_timer.stop();
 362               stop();
 363             }
 364           else
 365             {
 366               if (worldmap->at(tile_pos)->auto_walk || direction != input_direction)
 367                 { // Turn to a new direction
 368                   Tile* tile = worldmap->at(tile_pos);
 369
 370                   if(direction != input_direction &&
 371                      ((tile->north && input_direction == D_NORTH) ||
 372                      (tile->south && input_direction == D_SOUTH) ||
 373                      (tile->east && input_direction == D_EAST) ||
 374                      (tile->west && input_direction == D_WEST)))
 375                     {  // player has changed direction during auto-movement
 376                     direction = input_direction;
 377                     back_direction = reverse_dir(direction);
 378                     }
 379                   else if(direction != input_direction)
 380                     {  // player has changed to impossible tile
 381                       back_direction = reverse_dir(direction);
 382                       stop();
 383                     }
 384                   else
 385                     {
 386                     Direction dir = D_NONE;
 387
 388                     if (tile->north && back_direction != D_NORTH)
 389                       dir = D_NORTH;
 390                     else if (tile->south && back_direction != D_SOUTH)
 391                       dir = D_SOUTH;
 392                     else if (tile->east && back_direction != D_EAST)
 393                       dir = D_EAST;
 394                     else if (tile->west && back_direction != D_WEST)
 395                       dir = D_WEST;
 396
 397                     if (dir != D_NONE)
 398                       {
 399                       direction = dir;
 400                       input_direction = direction;
 401                       back_direction = reverse_dir(direction);
 402                       }
 403                     else
 404                       {
 405                       // Should never be reached if tiledata is good
 406                       stop();
 407                       return;
 408                       }
 409                     }
 410                   }
 411
 412               // Walk automatically to the next tile
 413               if(direction != D_NONE)
 414                 {
 415                 Vector next_tile;
 416                 if (worldmap->path_ok(direction, tile_pos, &next_tile))
 417                   {
 418                   tile_pos = next_tile;
 419                   }
 420                 else
 421                   {
 422                   puts("Tilemap data is buggy");
 423                   stop();
 424                   }
 425                 }
 426             }
 427         }
 428     }
 429 }
 430
 431 //---------------------------------------------------------------------------
 432 Tile::Tile()
 433 {
 434 }
 435
 436 Tile::~Tile()
 437 {
 438   for(std::vector<Surface*>::iterator i = images.begin(); i != images.end(); i++)
 439     delete *i;
 440 }
 441
 442
 443 void
 444 Tile::draw(DrawingContext& context, Vector pos)
 445 {
 446   // same code as from tile_manager.cpp draw_tile()
 447
 448   if(!images.size())
 449     return;
 450
 451   if(images.size() > 1)
 452     {
 453     size_t frame
 454       = ((global_frame_counter*25) / anim_speed) % images.size();
 455
 456 std::cerr << "frame: " << frame << std::endl;
 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   leveldot_green = new Surface(datadir +  "/images/worldmap/leveldot_green.png", true);
 479   leveldot_red = new Surface(datadir +  "/images/worldmap/leveldot_red.png", true);
 480   messagedot   = new Surface(datadir +  "/images/worldmap/messagedot.png", true);
 481   teleporterdot   = new Surface(datadir +  "/images/worldmap/teleporterdot.png", true);
 482
 483   enter_level = false;
 484
 485   name = "<no title>";
 486   music = "SALCON.MOD";
 487
 488   global_frame_counter = 0;
 489   frame_timer.init(true);
 490
 491   total_stats.reset();
 492 }
 493
 494 WorldMap::~WorldMap()
 495 {
 496   delete tux;
 497   delete tile_manager;
 498
 499   delete leveldot_green;
 500   delete leveldot_red;
 501   delete messagedot;
 502   delete teleporterdot;
 503 }
 504
 505 // Don't forget to set map_filename before calling this
 506 void
 507 WorldMap::load_map()
 508 {
 509   lisp_object_t* root_obj = lisp_read_from_file(datadir + "/levels/worldmap/" + map_filename);
 510   if (!root_obj)
 511     Termination::abort("Couldn't load file", datadir + "/levels/worldmap/" + map_filename);
 512
 513   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap") == 0)
 514     {
 515       lisp_object_t* cur = lisp_cdr(root_obj);
 516
 517       while(!lisp_nil_p(cur))
 518         {
 519           lisp_object_t* element = lisp_car(cur);
 520
 521           if (strcmp(lisp_symbol(lisp_car(element)), "tilemap") == 0)
 522             {
 523               LispReader reader(lisp_cdr(element));
 524               reader.read_int("width",  width);
 525               reader.read_int("height", height);
 526               reader.read_int_vector("data", tilemap);
 527             }
 528           else if (strcmp(lisp_symbol(lisp_car(element)), "properties") == 0)
 529             {
 530               LispReader reader(lisp_cdr(element));
 531               reader.read_string("name", name, true);
 532               reader.read_string("music", music);
 533               reader.read_int("start_pos_x", start_x);
 534               reader.read_int("start_pos_y", start_y);
 535             }
 536           else if (strcmp(lisp_symbol(lisp_car(element)), "special-tiles") == 0 ||
 537                    strcmp(lisp_symbol(lisp_car(element)), "levels") == 0)
 538             {
 539               lisp_object_t* cur = lisp_cdr(element);
 540
 541               while(!lisp_nil_p(cur))
 542                 {
 543                   lisp_object_t* element = lisp_car(cur);
 544
 545                   if (strcmp(lisp_symbol(lisp_car(element)), "special-tile") == 0)
 546                     {
 547                       SpecialTile special_tile;
 548                       LispReader reader(lisp_cdr(element));
 549                       special_tile.solved = false;
 550
 551                       special_tile.north = true;
 552                       special_tile.east  = true;
 553                       special_tile.south = true;
 554                       special_tile.west  = true;
 555
 556                       reader.read_int("x", special_tile.x);
 557                       reader.read_int("y", special_tile.y);
 558                       reader.read_string("level", special_tile.level_name, false);
 559
 560                       special_tile.vertical_flip = false;
 561                       reader.read_bool("vertical-flip", special_tile.vertical_flip);
 562
 563                       special_tile.map_message.erase();
 564                       reader.read_string("map-message", special_tile.map_message);
 565                       special_tile.passive_message = false;
 566                       reader.read_bool("passive-message", special_tile.passive_message);
 567
 568                       special_tile.teleport_dest_x = special_tile.teleport_dest_y = -1;
 569                       reader.read_int("teleport-to-x", special_tile.teleport_dest_x);
 570                       reader.read_int("teleport-to-y", special_tile.teleport_dest_y);
 571
 572                       special_tile.invisible = false;
 573                       reader.read_bool("invisible-tile", special_tile.invisible);
 574
 575                       special_tile.apply_action_north = special_tile.apply_action_south =
 576                           special_tile.apply_action_east = special_tile.apply_action_west =
 577                           true;
 578                       std::string apply_direction;
 579                       reader.read_string("apply-to-direction", apply_direction);
 580                       if(!apply_direction.empty())
 581                         {
 582                         special_tile.apply_action_north = special_tile.apply_action_south =
 583                             special_tile.apply_action_east = special_tile.apply_action_west =
 584                             false;
 585                         if(apply_direction.find("north") != std::string::npos)
 586                           special_tile.apply_action_north = true;
 587                         if(apply_direction.find("south") != std::string::npos)
 588                           special_tile.apply_action_south = true;
 589                         if(apply_direction.find("east") != std::string::npos)
 590                           special_tile.apply_action_east = true;
 591                         if(apply_direction.find("west") != std::string::npos)
 592                           special_tile.apply_action_west = true;
 593                         }
 594
 595                       reader.read_string("extro-filename", special_tile.extro_filename);
 596                       reader.read_string("next-world", special_tile.next_worldmap);
 597                       special_tile.quit_worldmap = false;
 598                       reader.read_bool("exit-game", special_tile.quit_worldmap);
 599
 600                       special_tile.auto_path = true;
 601                       reader.read_bool("auto-path", special_tile.auto_path);
 602
 603                       special_tiles.push_back(special_tile);
 604                     }
 605
 606                   /* Kept for backward compability */
 607                   else if (strcmp(lisp_symbol(lisp_car(element)), "level") == 0)
 608                     {
 609                       SpecialTile special_tile;
 610                       LispReader reader(lisp_cdr(element));
 611                       special_tile.solved = false;
 612
 613                       special_tile.north = true;
 614                       special_tile.east  = true;
 615                       special_tile.south = true;
 616                       special_tile.west  = true;
 617
 618                       special_tile.invisible = false;
 619
 620                       special_tile.apply_action_north = special_tile.apply_action_south =
 621                           special_tile.apply_action_east = special_tile.apply_action_west =
 622                           true;
 623                       special_tile.vertical_flip = false;
 624                       special_tile.teleport_dest_x = special_tile.teleport_dest_y = -1;
 625
 626                       reader.read_string("extro-filename", special_tile.extro_filename);
 627                       if(!special_tile.extro_filename.empty())
 628                         special_tile.quit_worldmap = true;
 629                       reader.read_string("name", special_tile.level_name, true);
 630                       reader.read_int("x", special_tile.x);
 631                       reader.read_int("y", special_tile.y);
 632
 633
 634                       special_tiles.push_back(special_tile);
 635                     }
 636
 637                   cur = lisp_cdr(cur);
 638                 }
 639             }
 640           else
 641             {
 642
 643             }
 644
 645           cur = lisp_cdr(cur);
 646         }
 647     }
 648
 649     lisp_free(root_obj);
 650     tux = new Tux(this);
 651 }
 652
 653 void WorldMap::get_level_title(SpecialTile& special_tile)
 654 {
 655   /** get special_tile's title */
 656   special_tile.title = "<no title>";
 657
 658   LispReader* reader = LispReader::load(datadir + "/levels/" + special_tile.level_name, "supertux-level");
 659   if(!reader)
 660     {
 661     std::cerr << "Error: Could not open level file. Ignoring...\n";
 662     return;
 663     }
 664
 665   reader->read_string("name", special_tile.title, true);
 666   delete reader;
 667 }
 668
 669 void WorldMap::calculate_total_stats()
 670 {
 671   total_stats.reset();
 672   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 673     {
 674     if (!i->level_name.empty() && i->solved)
 675       {
 676       total_stats += i->statistics;
 677       }
 678     }
 679 }
 680
 681 void
 682 WorldMap::on_escape_press()
 683 {
 684   // Show or hide the menu
 685   if(!Menu::current())
 686     {
 687     Menu::set_current(worldmap_menu);
 688     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 689     }
 690   else
 691     Menu::set_current(0);
 692 }
 693
 694 void
 695 WorldMap::get_input()
 696 {
 697   enter_level = false;
 698
 699   SDL_Event event;
 700   while (SDL_PollEvent(&event))
 701     {
 702       if (Menu::current())
 703         {
 704           Menu::current()->event(event);
 705         }
 706       else
 707         {
 708           switch(event.type)
 709             {
 710             case SDL_QUIT:
 711               Termination::abort("Received window close", "");
 712               break;
 713
 714             case SDL_KEYDOWN:
 715               switch(event.key.keysym.sym)
 716                 {
 717                 case SDLK_ESCAPE:
 718                   on_escape_press();
 719                   break;
 720                 case SDLK_LCTRL:
 721                 case SDLK_RETURN:
 722                   enter_level = true;
 723                   break;
 724
 725                 case SDLK_LEFT:
 726                   tux->set_direction(D_WEST);
 727                   break;
 728                 case SDLK_RIGHT:
 729                   tux->set_direction(D_EAST);
 730                   break;
 731                 case SDLK_UP:
 732                   tux->set_direction(D_NORTH);
 733                   break;
 734                 case SDLK_DOWN:
 735                   tux->set_direction(D_SOUTH);
 736                   break;
 737
 738                 default:
 739                   break;
 740                 }
 741               break;
 742
 743             case SDL_JOYHATMOTION:
 744               if(event.jhat.value & SDL_HAT_UP) {
 745                 tux->set_direction(D_NORTH);
 746               } else if(event.jhat.value & SDL_HAT_DOWN) {
 747                 tux->set_direction(D_SOUTH);
 748               } else if(event.jhat.value & SDL_HAT_LEFT) {
 749                 tux->set_direction(D_WEST);
 750               } else if(event.jhat.value & SDL_HAT_RIGHT) {
 751                 tux->set_direction(D_EAST);
 752               }
 753               break;
 754
 755             case SDL_JOYAXISMOTION:
 756               if (event.jaxis.axis == joystick_keymap.x_axis)
 757                 {
 758                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 759                     tux->set_direction(D_WEST);
 760                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 761                     tux->set_direction(D_EAST);
 762                 }
 763               else if (event.jaxis.axis == joystick_keymap.y_axis)
 764                 {
 765                   if (event.jaxis.value > joystick_keymap.dead_zone)
 766                     tux->set_direction(D_SOUTH);
 767                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 768                     tux->set_direction(D_NORTH);
 769                 }
 770               break;
 771
 772             case SDL_JOYBUTTONDOWN:
 773               if (event.jbutton.button == joystick_keymap.b_button)
 774                 enter_level = true;
 775               else if (event.jbutton.button == joystick_keymap.start_button)
 776                 on_escape_press();
 777               break;
 778
 779             default:
 780               break;
 781             }
 782         }
 783     }
 784 }
 785
 786 Vector
 787 WorldMap::get_next_tile(Vector pos, Direction direction)
 788 {
 789   switch(direction)
 790     {
 791     case D_WEST:
 792       pos.x -= 1;
 793       break;
 794     case D_EAST:
 795       pos.x += 1;
 796       break;
 797     case D_NORTH:
 798       pos.y -= 1;
 799       break;
 800     case D_SOUTH:
 801       pos.y += 1;
 802       break;
 803     case D_NONE:
 804       break;
 805     }
 806   return pos;
 807 }
 808
 809 bool
 810 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 811 {
 812   *new_pos = get_next_tile(old_pos, direction);
 813
 814   if (!(new_pos->x >= 0 && new_pos->x < width
 815         && new_pos->y >= 0 && new_pos->y < height))
 816     { // New position is outsite the tilemap
 817       return false;
 818     }
 819   else if(at(*new_pos)->one_way != BOTH_WAYS)
 820     {
 821 std::cerr << "one way only\n";
 822       if((at(*new_pos)->one_way == NORTH_SOUTH_WAY && direction != D_SOUTH) ||
 823          (at(*new_pos)->one_way == SOUTH_NORTH_WAY && direction != D_NORTH) ||
 824          (at(*new_pos)->one_way == EAST_WEST_WAY && direction != D_WEST) ||
 825          (at(*new_pos)->one_way == WEST_EAST_WAY && direction != D_EAST))
 826         return false;
 827       return true;
 828     }
 829   else
 830     { // Check if we the tile allows us to go to new_pos
 831       switch(direction)
 832         {
 833         case D_WEST:
 834           return (at(old_pos)->west && at(*new_pos)->east);
 835
 836         case D_EAST:
 837           return (at(old_pos)->east && at(*new_pos)->west);
 838
 839         case D_NORTH:
 840           return (at(old_pos)->north && at(*new_pos)->south);
 841
 842         case D_SOUTH:
 843           return (at(old_pos)->south && at(*new_pos)->north);
 844
 845         case D_NONE:
 846           assert(!"path_ok() can't work if direction is NONE");
 847         }
 848       return false;
 849     }
 850 }
 851
 852 void
 853 WorldMap::update(float delta)
 854 {
 855   if(!frame_timer.check())
 856     {
 857     frame_timer.start(25);
 858     global_frame_counter++;
 859     }
 860
 861   if (enter_level && !tux->is_moving())
 862     {
 863       bool level_finished = true;
 864       SpecialTile* special_tile = at_special_tile();
 865       if (!special_tile)
 866         {
 867         std::cout << "Nothing to enter at: "
 868           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y << std::endl;
 869         return;
 870         }
 871
 872
 873       if(!special_tile->level_name.empty())
 874         {
 875           if (special_tile->x == tux->get_tile_pos().x &&
 876               special_tile->y == tux->get_tile_pos().y)
 877             {
 878               PlayerStatus old_player_status = player_status;
 879
 880               std::cout << "Enter the current level: " << special_tile->level_name << std::endl;
 881               // do a shriking fade to the special_tile
 882               shrink_fade(Vector((special_tile->x*32 + 16 + offset.x),(special_tile->y*32 + 16
 883                       + offset.y)), 500);
 884               GameSession session(datadir +  "/levels/" + special_tile->level_name,
 885                                   ST_GL_LOAD_LEVEL_FILE, special_tile->vertical_flip,
 886                                   &special_tile->statistics);
 887
 888               switch (session.run())
 889                 {
 890                 case GameSession::ES_LEVEL_FINISHED:
 891                   {
 892                     level_finished = true;
 893                     bool old_level_state = special_tile->solved;
 894                     special_tile->solved = true;
 895
 896                     // deal with statistics
 897                     special_tile->statistics.merge(global_stats);
 898                     calculate_total_stats();
 899
 900                     if (session.get_current_sector()->player->got_power !=
 901                           session.get_current_sector()->player->NONE_POWER)
 902                       player_status.bonus = PlayerStatus::FLOWER_BONUS;
 903                     else if (session.get_current_sector()->player->size == BIG)
 904                       player_status.bonus = PlayerStatus::GROWUP_BONUS;
 905                     else
 906                       player_status.bonus = PlayerStatus::NO_BONUS;
 907
 908                     if (old_level_state != special_tile->solved && special_tile->auto_path)
 909                       { // Try to detect the next direction to which we should walk
 910                         // FIXME: Mostly a hack
 911                         Direction dir = D_NONE;
 912
 913                         Tile* tile = at(tux->get_tile_pos());
 914
 915                         if (tile->north && tux->back_direction != D_NORTH)
 916                           dir = D_NORTH;
 917                         else if (tile->south && tux->back_direction != D_SOUTH)
 918                           dir = D_SOUTH;
 919                         else if (tile->east && tux->back_direction != D_EAST)
 920                           dir = D_EAST;
 921                         else if (tile->west && tux->back_direction != D_WEST)
 922                           dir = D_WEST;
 923
 924                         if (dir != D_NONE)
 925                           {
 926                             tux->set_direction(dir);
 927                             //tux->update(delta);
 928                           }
 929
 930                         std::cout << "Walk to dir: " << dir << std::endl;
 931                       }
 932                   }
 933
 934                   break;
 935                 case GameSession::ES_LEVEL_ABORT:
 936                   level_finished = false;
 937                   /* In case the player's abort the special_tile, keep it using the old
 938                       status. But the minimum lives and no bonus. */
 939                   player_status.distros = old_player_status.distros;
 940                   player_status.lives = std::min(old_player_status.lives, player_status.lives);
 941                   player_status.bonus = player_status.NO_BONUS;
 942
 943                   break;
 944                 case GameSession::ES_GAME_OVER:
 945                   {
 946                   level_finished = false;
 947                   /* draw an end screen */
 948                   /* TODO: in the future, this should make a dialog a la SuperMario, asking
 949                   if the player wants to restart the world map with no score and from
 950                   level 1 */
 951                   char str[80];
 952
 953                   DrawingContext context;
 954                   context.draw_gradient(Color (200,240,220), Color(200,200,220),
 955                       LAYER_BACKGROUND0);
 956
 957                   context.draw_text(blue_text, _("GAMEOVER"),
 958                       Vector(screen->w/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 959
 960                   sprintf(str, _("COINS: %d"), player_status.distros);
 961                   context.draw_text(gold_text, str,
 962                       Vector(screen->w/2, screen->w - 32), CENTER_ALLIGN, LAYER_FOREGROUND1);
 963
 964                   total_stats.draw_message_info(context, _("Total Statistics"));
 965
 966                   context.do_drawing();
 967
 968                   SDL_Event event;
 969                   wait_for_event(event,2000,6000,true);
 970
 971                   quit = true;
 972                   player_status.reset();
 973                   break;
 974                   }
 975                 case GameSession::ES_NONE:
 976                   assert(false);
 977                   // Should never be reached
 978                   break;
 979                 }
 980
 981               SoundManager::get()->play_music(song);
 982               Menu::set_current(0);
 983               if (!savegame_file.empty())
 984                 savegame(savegame_file);
 985             }
 986         }
 987       /* The porpose of the next checking is that if the player lost
 988          the special_tile (in case there is one), don't show anything */
 989       if(level_finished)
 990         {
 991         if (!special_tile->extro_filename.empty())
 992           {
 993           // Display a text file
 994           display_text_file(special_tile->extro_filename, SCROLL_SPEED_MESSAGE, white_big_text , white_text, white_small_text, blue_text );
 995           }
 996         if (special_tile->teleport_dest_x != -1 && special_tile->teleport_dest_y != -1)
 997           {
 998           // TODO: an animation, camera scrolling or a fading would be a nice touch
 999           SoundManager::get()->play_sound(IDToSound(SND_WARP));
1000           tux->back_direction = D_NONE;
1001           tux->set_tile_pos(Vector(special_tile->teleport_dest_x, special_tile->teleport_dest_y));
1002           SDL_Delay(1000);
1003           }
1004         if (!special_tile->next_worldmap.empty())
1005           {
1006           // Load given worldmap
1007           loadmap(special_tile->next_worldmap);
1008           }
1009         if (special_tile->quit_worldmap)
1010           quit = true;
1011         }
1012     }
1013   else
1014     {
1015       tux->action(delta);
1016 //      tux->set_direction(input_direction);
1017     }
1018
1019   Menu* menu = Menu::current();
1020   if(menu)
1021     {
1022       menu->action();
1023
1024       if(menu == worldmap_menu)
1025         {
1026           switch (worldmap_menu->check())
1027             {
1028             case MNID_RETURNWORLDMAP: // Return to game
1029               break;
1030             case MNID_QUITWORLDMAP: // Quit Worldmap
1031               quit = true;
1032               break;
1033             }
1034         }
1035       else if(menu == options_menu)
1036         {
1037           process_options_menu();
1038         }
1039     }
1040 }
1041
1042 Tile*
1043 WorldMap::at(Vector p)
1044 {
1045   assert(p.x >= 0
1046          && p.x < width
1047          && p.y >= 0
1048          && p.y < height);
1049
1050   int x = int(p.x);
1051   int y = int(p.y);
1052   return tile_manager->get(tilemap[width * y + x]);
1053 }
1054
1055 WorldMap::SpecialTile*
1056 WorldMap::at_special_tile()
1057 {
1058   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1059     {
1060       if (i->x == tux->get_tile_pos().x &&
1061           i->y == tux->get_tile_pos().y)
1062         return &*i;
1063     }
1064
1065   return 0;
1066 }
1067
1068
1069 void
1070 WorldMap::draw(DrawingContext& context, const Vector& offset)
1071 {
1072   for(int y = 0; y < height; ++y)
1073     for(int x = 0; x < width; ++x)
1074       {
1075         Tile* tile = at(Vector(x, y));
1076         tile->draw(context, Vector(x*32 + offset.x, y*32 + offset.y));
1077       }
1078
1079   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1080     {
1081       if(i->invisible)
1082         continue;
1083       if(i->level_name.empty())
1084         {
1085         if (i->teleport_dest_x != -1 && i->teleport_dest_y != -1)
1086           context.draw_surface(teleporterdot,
1087               Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1088
1089         else if (!i->map_message.empty() && !i->passive_message)
1090           context.draw_surface(messagedot,
1091               Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1092
1093         continue;
1094         }
1095
1096       if (i->solved)
1097         context.draw_surface(leveldot_green,
1098             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1099       else
1100         context.draw_surface(leveldot_red,
1101             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1102     }
1103
1104   tux->draw(context, offset);
1105   draw_status(context);
1106 }
1107
1108 void
1109 WorldMap::draw_status(DrawingContext& context)
1110 {
1111   char str[80];
1112   sprintf(str, " %d", total_stats.get_points(SCORE_STAT));
1113
1114   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1115   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1116
1117   sprintf(str, "%d", player_status.distros);
1118   context.draw_text(white_text, _("COINS"), Vector(screen->w/2 - 16*5, 0),
1119       LEFT_ALLIGN, LAYER_FOREGROUND1);
1120   context.draw_text(gold_text, str, Vector(screen->w/2 + (16*5)/2, 0),
1121         LEFT_ALLIGN, LAYER_FOREGROUND1);
1122
1123   if (player_status.lives >= 5)
1124     {
1125       sprintf(str, "%dx", player_status.lives);
1126       context.draw_text(gold_text, str,
1127           Vector(screen->w - gold_text->get_text_width(str) - tux_life->w, 0),
1128           LEFT_ALLIGN, LAYER_FOREGROUND1);
1129       context.draw_surface(tux_life, Vector(screen->w -
1130             gold_text->get_text_width("9"), 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1131     }
1132   else
1133     {
1134       for(int i= 0; i < player_status.lives; ++i)
1135         context.draw_surface(tux_life,
1136             Vector(screen->w - tux_life->w*4 + (tux_life->w*i), 0),
1137             LAYER_FOREGROUND1);
1138     }
1139   context.draw_text(white_text, _("LIVES"),
1140       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
1141       LEFT_ALLIGN, LAYER_FOREGROUND1);
1142
1143   if (!tux->is_moving())
1144     {
1145       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1146         {
1147           if (i->x == tux->get_tile_pos().x &&
1148               i->y == tux->get_tile_pos().y)
1149             {
1150               if(!i->level_name.empty())
1151                 {
1152                 if(i->title == "")
1153                   get_level_title(*i);
1154
1155                 context.draw_text(white_text, i->title,
1156                     Vector(screen->w/2, screen->h - white_text->get_height() - 30),
1157                     CENTER_ALLIGN, LAYER_FOREGROUND1);
1158
1159                 i->statistics.draw_worldmap_info(context);
1160                 }
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, screen->h - white_text->get_height() - 60),
1166                     CENTER_ALLIGN, LAYER_FOREGROUND1);
1167               break;
1168             }
1169         }
1170     }
1171   /* Display a passive message in the map, if needed */
1172   if(passive_message_timer.check())
1173     context.draw_text(gold_text, passive_message,
1174             Vector(screen->w/2, screen->h - white_text->get_height() - 60),
1175             CENTER_ALLIGN, LAYER_FOREGROUND1);
1176 }
1177
1178 void
1179 WorldMap::display()
1180 {
1181   Menu::set_current(0);
1182
1183   quit = false;
1184
1185   song = SoundManager::get()->load_music(datadir +  "/music/" + music);
1186   SoundManager::get()->play_music(song);
1187
1188   FrameRate frame_rate(10);
1189   frame_rate.set_frame_limit(false);
1190
1191   frame_rate.start();
1192
1193   DrawingContext context;
1194   while(!quit)
1195     {
1196       float delta = frame_rate.get();
1197
1198       delta *= 1.3f;
1199
1200       if (delta > 10.0f)
1201         delta = .3f;
1202
1203       frame_rate.update();
1204
1205       Vector tux_pos = tux->get_pos();
1206       if (1)
1207         {
1208           offset.x = -tux_pos.x + screen->w/2;
1209           offset.y = -tux_pos.y + screen->h/2;
1210
1211           if (offset.x > 0) offset.x = 0;
1212           if (offset.y > 0) offset.y = 0;
1213
1214           if (offset.x < screen->w - width*32) offset.x = screen->w - width*32;
1215           if (offset.y < screen->h - height*32) offset.y = screen->h - height*32;
1216         }
1217
1218       draw(context, offset);
1219       get_input();
1220       update(delta);
1221
1222       if(Menu::current())
1223         {
1224           Menu::current()->draw(context);
1225           mouse_cursor->draw(context);
1226         }
1227
1228       context.do_drawing();
1229
1230       SDL_Delay(20);
1231     }
1232 }
1233
1234 void
1235 WorldMap::savegame(const std::string& filename)
1236 {
1237   if(filename == "")
1238     return;
1239
1240   std::cout << "savegame: " << filename << std::endl;
1241
1242    std::ofstream file(filename.c_str(), std::ios::out);
1243    LispWriter* writer = new LispWriter(file);
1244
1245   int nb_solved_levels = 0, total_levels = 0;
1246   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1247     {
1248       if(!i->level_name.empty())
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(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1279     {
1280       if (i->solved && !i->level_name.empty())
1281         {
1282         writer->start_list("level");
1283
1284         writer->write_string("name", i->level_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 special_tile 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(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1379                 {
1380                   if (name == i->level_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