src/worldmap.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux -  A Jump'n Run
   4 //  Copyright (C) 2004 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19 #include <config.h>
  20
  21 #include <iostream>
  22 #include <fstream>
  23 #include <vector>
  24 #include <cassert>
  25 #include <stdexcept>
  26 #include <sstream>
  27 #include <unistd.h>
  28
  29 #include "gettext.h"
  30 #include "video/surface.h"
  31 #include "video/screen.h"
  32 #include "video/drawing_context.h"
  33 #include "sprite/sprite_manager.h"
  34 #include "audio/sound_manager.h"
  35 #include "lisp/parser.h"
  36 #include "lisp/lisp.h"
  37 #include "lisp/list_iterator.h"
  38 #include "lisp/writer.h"
  39 #include "game_session.h"
  40 #include "sector.h"
  41 #include "worldmap.h"
  42 #include "resources.h"
  43 #include "misc.h"
  44 #include "player_status.h"
  45 #include "textscroller.h"
  46 #include "main.h"
  47 #include "spawn_point.h"
  48 #include "file_system.h"
  49 #include "gui/menu.h"
  50 #include "gui/mousecursor.h"
  51 #include "control/joystickkeyboardcontroller.h"
  52 #include "object/background.h"
  53 #include "object/tilemap.h"
  54
  55 Menu* worldmap_menu  = 0;
  56
  57 static const float TUXSPEED = 200;
  58 static const float map_message_TIME = 2.8;
  59
  60 namespace WorldMapNS {
  61
  62 Direction reverse_dir(Direction direction)
  63 {
  64   switch(direction)
  65     {
  66     case D_WEST:
  67       return D_EAST;
  68     case D_EAST:
  69       return D_WEST;
  70     case D_NORTH:
  71       return D_SOUTH;
  72     case D_SOUTH:
  73       return D_NORTH;
  74     case D_NONE:
  75       return D_NONE;
  76     }
  77   return D_NONE;
  78 }
  79
  80 std::string
  81 direction_to_string(Direction direction)
  82 {
  83   switch(direction)
  84     {
  85     case D_WEST:
  86       return "west";
  87     case D_EAST:
  88       return "east";
  89     case D_NORTH:
  90       return "north";
  91     case D_SOUTH:
  92       return "south";
  93     default:
  94       return "none";
  95     }
  96 }
  97
  98 Direction
  99 string_to_direction(const std::string& directory)
 100 {
 101   if (directory == "west")
 102     return D_WEST;
 103   else if (directory == "east")
 104     return D_EAST;
 105   else if (directory == "north")
 106     return D_NORTH;
 107   else if (directory == "south")
 108     return D_SOUTH;
 109   else
 110     return D_NONE;
 111 }
 112
 113 //---------------------------------------------------------------------------
 114
 115 Tux::Tux(WorldMap* worldmap_)
 116   : worldmap(worldmap_)
 117 {
 118   tux_sprite = sprite_manager->create("worldmaptux");
 119
 120   offset = 0;
 121   moving = false;
 122   direction = D_NONE;
 123   input_direction = D_NONE;
 124 }
 125
 126 Tux::~Tux()
 127 {
 128   delete tux_sprite;
 129 }
 130
 131 void
 132 Tux::draw(DrawingContext& context)
 133 {
 134   switch (player_status.bonus) {
 135     case GROWUP_BONUS:
 136       tux_sprite->set_action("large");
 137       break;
 138     case FIRE_BONUS:
 139       tux_sprite->set_action("fire");
 140       break;
 141     case NO_BONUS:
 142       tux_sprite->set_action("small");
 143       break;
 144     default:
 145 #ifdef DBEUG
 146       std::cerr << "Bonus type not handled in worldmap.\n";
 147 #endif
 148       tux_sprite->set_action("large");
 149       break;
 150   }
 151
 152   tux_sprite->draw(context, get_pos(), LAYER_OBJECTS);
 153 }
 154
 155
 156 Vector
 157 Tux::get_pos()
 158 {
 159   float x = tile_pos.x * 32;
 160   float y = tile_pos.y * 32;
 161
 162   switch(direction)
 163     {
 164     case D_WEST:
 165       x -= offset - 32;
 166       break;
 167     case D_EAST:
 168       x += offset - 32;
 169       break;
 170     case D_NORTH:
 171       y -= offset - 32;
 172       break;
 173     case D_SOUTH:
 174       y += offset - 32;
 175       break;
 176     case D_NONE:
 177       break;
 178     }
 179
 180   return Vector(x, y);
 181 }
 182
 183 void
 184 Tux::stop()
 185 {
 186   offset = 0;
 187   direction = D_NONE;
 188   input_direction = D_NONE;
 189   moving = false;
 190 }
 191
 192 void
 193 Tux::set_direction(Direction dir)
 194 {
 195   input_direction = dir;
 196 }
 197
 198 void
 199 Tux::update(float delta)
 200 {
 201   // check controller
 202   if(main_controller->pressed(Controller::UP))
 203     input_direction = D_NORTH;
 204   else if(main_controller->pressed(Controller::DOWN))
 205     input_direction = D_SOUTH;
 206   else if(main_controller->pressed(Controller::LEFT))
 207     input_direction = D_WEST;
 208   else if(main_controller->pressed(Controller::RIGHT))
 209     input_direction = D_EAST;
 210
 211   if(!moving)
 212     {
 213       if (input_direction != D_NONE)
 214         {
 215           WorldMap::Level* level = worldmap->at_level();
 216
 217           // We got a new direction, so lets start walking when possible
 218           Vector next_tile;
 219           if ((!level || level->solved)
 220               && worldmap->path_ok(input_direction, tile_pos, &next_tile))
 221             {
 222               tile_pos = next_tile;
 223               moving = true;
 224               direction = input_direction;
 225               back_direction = reverse_dir(direction);
 226             }
 227           else if (input_direction == back_direction)
 228             {
 229               moving = true;
 230               direction = input_direction;
 231               tile_pos = worldmap->get_next_tile(tile_pos, direction);
 232               back_direction = reverse_dir(direction);
 233             }
 234         }
 235     }
 236   else
 237     {
 238       // Let tux walk
 239       offset += TUXSPEED * delta;
 240
 241       if (offset > 32)
 242         { // We reached the next tile, so we check what to do now
 243           offset -= 32;
 244
 245           WorldMap::SpecialTile* special_tile = worldmap->at_special_tile();
 246           if(special_tile && special_tile->passive_message)
 247             {  // direction and the apply_action_ are opposites, since they "see"
 248                // directions in a different way
 249             if((direction == D_NORTH && special_tile->apply_action_south) ||
 250                (direction == D_SOUTH && special_tile->apply_action_north) ||
 251                (direction == D_WEST && special_tile->apply_action_east) ||
 252                (direction == D_EAST && special_tile->apply_action_west))
 253               {
 254               worldmap->passive_message = special_tile->map_message;
 255               worldmap->passive_message_timer.start(map_message_TIME);
 256               }
 257             }
 258
 259           if (worldmap->at(tile_pos)->getData() & Tile::WORLDMAP_STOP ||
 260              (special_tile && !special_tile->passive_message) ||
 261               worldmap->at_level())
 262             {
 263               if(special_tile && !special_tile->map_message.empty() &&
 264                 !special_tile->passive_message)
 265                 worldmap->passive_message_timer.start(0);
 266               stop();
 267             }
 268           else
 269             {
 270               const Tile* tile = worldmap->at(tile_pos);
 271               if (direction != input_direction)
 272                 {
 273                   // Turn to a new direction
 274                   const Tile* tile = worldmap->at(tile_pos);
 275
 276                   if((tile->getData() & Tile::WORLDMAP_NORTH
 277                       && input_direction == D_NORTH) ||
 278                      (tile->getData() & Tile::WORLDMAP_SOUTH
 279                       && input_direction == D_SOUTH) ||
 280                      (tile->getData() & Tile::WORLDMAP_EAST
 281                       && input_direction == D_EAST) ||
 282                      (tile->getData() & Tile::WORLDMAP_WEST
 283                       && input_direction == D_WEST))
 284                     {  // player has changed direction during auto-movement
 285                       direction = input_direction;
 286                       back_direction = reverse_dir(direction);
 287                     }
 288                   else
 289                     {  // player has changed to impossible tile
 290                       back_direction = reverse_dir(direction);
 291                       stop();
 292                     }
 293                 }
 294               else
 295                 {
 296                 Direction dir = D_NONE;
 297
 298                 if (tile->getData() & Tile::WORLDMAP_NORTH
 299                     && back_direction != D_NORTH)
 300                   dir = D_NORTH;
 301                 else if (tile->getData() & Tile::WORLDMAP_SOUTH
 302                     && back_direction != D_SOUTH)
 303                   dir = D_SOUTH;
 304                 else if (tile->getData() & Tile::WORLDMAP_EAST
 305                     && back_direction != D_EAST)
 306                   dir = D_EAST;
 307                 else if (tile->getData() & Tile::WORLDMAP_WEST
 308                     && back_direction != D_WEST)
 309                   dir = D_WEST;
 310
 311                 if (dir != D_NONE)
 312                   {
 313                   direction = dir;
 314                   input_direction = direction;
 315                   back_direction = reverse_dir(direction);
 316                   }
 317                 else
 318                   {
 319                   // Should never be reached if tiledata is good
 320                   stop();
 321                   return;
 322                   }
 323                 }
 324
 325               // Walk automatically to the next tile
 326               if(direction != D_NONE)
 327                 {
 328                 Vector next_tile;
 329                 if (worldmap->path_ok(direction, tile_pos, &next_tile))
 330                   {
 331                   tile_pos = next_tile;
 332                   }
 333                 else
 334                   {
 335                   puts("Tilemap data is buggy");
 336                   stop();
 337                   }
 338                 }
 339             }
 340         }
 341     }
 342 }
 343
 344 //---------------------------------------------------------------------------
 345
 346 WorldMap::WorldMap()
 347   : tux(0), solids(0)
 348 {
 349   tile_manager = new TileManager("images/worldmap.strf");
 350
 351   tux = new Tux(this);
 352   add_object(tux);
 353
 354   leveldot_green
 355     = new Surface(datadir + "/images/tiles/worldmap/leveldot_green.png", true);
 356   leveldot_red
 357     = new Surface(datadir + "/images/tiles/worldmap/leveldot_red.png", true);
 358   messagedot
 359     = new Surface(datadir + "/images/tiles/worldmap/messagedot.png", true);
 360   teleporterdot
 361     = new Surface(datadir + "/images/tiles/worldmap/teleporterdot.png", true);
 362
 363   name = "<no title>";
 364   music = "salcon.mod";
 365   intro_displayed = false;
 366
 367   total_stats.reset();
 368 }
 369
 370 WorldMap::~WorldMap()
 371 {
 372   clear_objects();
 373   for(SpawnPoints::iterator i = spawn_points.begin();
 374       i != spawn_points.end(); ++i) {
 375     delete *i;
 376   }
 377
 378   delete tile_manager;
 379
 380   delete leveldot_green;
 381   delete leveldot_red;
 382   delete messagedot;
 383   delete teleporterdot;
 384 }
 385
 386 void
 387 WorldMap::add_object(GameObject* object)
 388 {
 389   TileMap* tilemap = dynamic_cast<TileMap*> (object);
 390   if(tilemap != 0 && tilemap->is_solid()) {
 391     solids = tilemap;
 392   }
 393
 394   game_objects.push_back(object);
 395 }
 396
 397 void
 398 WorldMap::clear_objects()
 399 {
 400   for(GameObjects::iterator i = game_objects.begin();
 401       i != game_objects.end(); ++i)
 402     delete *i;
 403   game_objects.clear();
 404   solids = 0;
 405   tux = new Tux(this);
 406   add_object(tux);
 407 }
 408
 409 // Don't forget to set map_filename before calling this
 410 void
 411 WorldMap::load_map()
 412 {
 413   levels_path = FileSystem::dirname(map_filename);
 414
 415   try {
 416     lisp::Parser parser;
 417     std::string filename = get_resource_filename(map_filename);
 418     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
 419
 420     const lisp::Lisp* lisp = root->get_lisp("supertux-worldmap");
 421     if(!lisp)
 422       throw new std::runtime_error("file isn't a supertux-worldmap file.");
 423
 424     clear_objects();
 425     lisp::ListIterator iter(lisp);
 426     while(iter.next()) {
 427       if(iter.item() == "tilemap") {
 428         add_object(new TileMap(*(iter.lisp()), tile_manager));
 429       } else if(iter.item() == "background") {
 430         add_object(new Background(*(iter.lisp())));
 431       } else if(iter.item() == "properties") {
 432         const lisp::Lisp* props = iter.lisp();
 433         props->get("name", name);
 434         props->get("music", music);
 435         props->get("intro-filename", intro_filename);
 436       } else if(iter.item() == "spawnpoint") {
 437         SpawnPoint* sp = new SpawnPoint(iter.lisp());
 438         spawn_points.push_back(sp);
 439       } else if(iter.item() == "level") {
 440         parse_level_tile(iter.lisp());
 441       } else if(iter.item() == "special-tile") {
 442         parse_special_tile(iter.lisp());
 443       } else {
 444         std::cerr << "Unknown token '" << iter.item() << "' in worldmap.\n";
 445       }
 446     }
 447     if(solids == 0)
 448       throw std::runtime_error("No solid tilemap specified");
 449
 450     // search for main spawnpoint
 451     for(SpawnPoints::iterator i = spawn_points.begin();
 452         i != spawn_points.end(); ++i) {
 453       SpawnPoint* sp = *i;
 454       if(sp->name == "main") {
 455         Vector p = sp->pos;
 456         tux->set_tile_pos(p);
 457         break;
 458       }
 459     }
 460
 461   } catch(std::exception& e) {
 462     std::stringstream msg;
 463     msg << "Problem when parsing worldmap '" << map_filename << "': " <<
 464       e.what();
 465     throw std::runtime_error(msg.str());
 466   }
 467 }
 468
 469 void
 470 WorldMap::parse_special_tile(const lisp::Lisp* lisp)
 471 {
 472   SpecialTile special_tile;
 473
 474   lisp->get("x", special_tile.pos.x);
 475   lisp->get("y", special_tile.pos.y);
 476   lisp->get("map-message", special_tile.map_message);
 477   special_tile.passive_message = false;
 478   lisp->get("passive-message", special_tile.passive_message);
 479   special_tile.teleport_dest = Vector(-1,-1);
 480   lisp->get("teleport-to-x", special_tile.teleport_dest.x);
 481   lisp->get("teleport-to-y", special_tile.teleport_dest.y);
 482   special_tile.invisible = false;
 483   lisp->get("invisible-tile", special_tile.invisible);
 484
 485   special_tile.apply_action_north = true;
 486   special_tile.apply_action_south = true;
 487   special_tile.apply_action_east = true;
 488   special_tile.apply_action_west = true;
 489
 490   std::string apply_direction;
 491   lisp->get("apply-to-direction", apply_direction);
 492   if(!apply_direction.empty()) {
 493     special_tile.apply_action_north = false;
 494     special_tile.apply_action_south = false;
 495     special_tile.apply_action_east = false;
 496     special_tile.apply_action_west = false;
 497     if(apply_direction.find("north") != std::string::npos)
 498       special_tile.apply_action_north = true;
 499     if(apply_direction.find("south") != std::string::npos)
 500       special_tile.apply_action_south = true;
 501     if(apply_direction.find("east") != std::string::npos)
 502       special_tile.apply_action_east = true;
 503     if(apply_direction.find("west") != std::string::npos)
 504       special_tile.apply_action_west = true;
 505   }
 506
 507   special_tiles.push_back(special_tile);
 508 }
 509
 510 void
 511 WorldMap::parse_level_tile(const lisp::Lisp* level_lisp)
 512 {
 513   Level level;
 514
 515   level.solved = false;
 516
 517   level.north = true;
 518   level.east  = true;
 519   level.south = true;
 520   level.west  = true;
 521
 522   level_lisp->get("extro-filename", level.extro_filename);
 523   level_lisp->get("next-worldmap", level.next_worldmap);
 524
 525   level.quit_worldmap = false;
 526   level_lisp->get("quit-worldmap", level.quit_worldmap);
 527
 528   level_lisp->get("name", level.name);
 529   level_lisp->get("x", level.pos.x);
 530   level_lisp->get("y", level.pos.y);
 531
 532   level.auto_path = true;
 533   level_lisp->get("auto-path", level.auto_path);
 534
 535   level.vertical_flip = false;
 536   level_lisp->get("vertical-flip", level.vertical_flip);
 537
 538   levels.push_back(level);
 539 }
 540
 541 void
 542 WorldMap::get_level_title(Level& level)
 543 {
 544   /** get special_tile's title */
 545   level.title = "<no title>";
 546
 547   try {
 548     lisp::Parser parser;
 549     std::auto_ptr<lisp::Lisp> root (
 550         parser.parse(get_resource_filename(levels_path + level.name)));
 551
 552     const lisp::Lisp* level_lisp = root->get_lisp("supertux-level");
 553     if(!level_lisp)
 554       return;
 555
 556     level_lisp->get("name", level.title);
 557   } catch(std::exception& e) {
 558     std::cerr << "Problem when reading leveltitle: " << e.what() << "\n";
 559     return;
 560   }
 561 }
 562
 563 void WorldMap::calculate_total_stats()
 564 {
 565   total_stats.reset();
 566   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 567     {
 568     if (i->solved)
 569       {
 570       total_stats += i->statistics;
 571       }
 572     }
 573 }
 574
 575 void
 576 WorldMap::on_escape_press()
 577 {
 578   // Show or hide the menu
 579   if(!Menu::current()) {
 580     Menu::set_current(worldmap_menu);
 581     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 582   } else {
 583     Menu::set_current(0);
 584   }
 585 }
 586
 587 void
 588 WorldMap::get_input()
 589 {
 590   main_controller->update();
 591
 592   SDL_Event event;
 593   while (SDL_PollEvent(&event)) {
 594     if (Menu::current())
 595       Menu::current()->event(event);
 596     main_controller->process_event(event);
 597     if(event.type == SDL_QUIT)
 598       throw std::runtime_error("Received window close");
 599   }
 600 }
 601
 602 Vector
 603 WorldMap::get_next_tile(Vector pos, Direction direction)
 604 {
 605   switch(direction) {
 606     case D_WEST:
 607       pos.x -= 1;
 608       break;
 609     case D_EAST:
 610       pos.x += 1;
 611       break;
 612     case D_NORTH:
 613       pos.y -= 1;
 614       break;
 615     case D_SOUTH:
 616       pos.y += 1;
 617       break;
 618     case D_NONE:
 619       break;
 620   }
 621   return pos;
 622 }
 623
 624 bool
 625 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 626 {
 627   *new_pos = get_next_tile(old_pos, direction);
 628
 629   if (!(new_pos->x >= 0 && new_pos->x < solids->get_width()
 630         && new_pos->y >= 0 && new_pos->y < solids->get_height()))
 631     { // New position is outsite the tilemap
 632       return false;
 633     }
 634   else
 635     { // Check if the tile allows us to go to new_pos
 636       switch(direction)
 637         {
 638         case D_WEST:
 639           return (at(old_pos)->getData() & Tile::WORLDMAP_WEST
 640               && at(*new_pos)->getData() & Tile::WORLDMAP_EAST);
 641
 642         case D_EAST:
 643           return (at(old_pos)->getData() & Tile::WORLDMAP_EAST
 644               && at(*new_pos)->getData() & Tile::WORLDMAP_WEST);
 645
 646         case D_NORTH:
 647           return (at(old_pos)->getData() & Tile::WORLDMAP_NORTH
 648               && at(*new_pos)->getData() & Tile::WORLDMAP_SOUTH);
 649
 650         case D_SOUTH:
 651           return (at(old_pos)->getData() & Tile::WORLDMAP_SOUTH
 652               && at(*new_pos)->getData() & Tile::WORLDMAP_NORTH);
 653
 654         case D_NONE:
 655           assert(!"path_ok() can't work if direction is NONE");
 656         }
 657       return false;
 658     }
 659 }
 660
 661 void
 662 WorldMap::update(float delta)
 663 {
 664   Menu* menu = Menu::current();
 665   if(menu) {
 666     menu->update();
 667
 668     if(menu == worldmap_menu) {
 669       switch (worldmap_menu->check())
 670       {
 671         case MNID_RETURNWORLDMAP: // Return to game
 672           Menu::set_current(0);
 673           break;
 674         case MNID_QUITWORLDMAP: // Quit Worldmap
 675           quit = true;
 676           break;
 677       }
 678     } else if(menu == options_menu) {
 679       process_options_menu();
 680     }
 681
 682     return;
 683   }
 684
 685   // update GameObjects
 686   for(GameObjects::iterator i = game_objects.begin();
 687       i != game_objects.end(); ++i) {
 688     GameObject* object = *i;
 689     object->update(delta);
 690   }
 691   // remove old GameObjects
 692   for(GameObjects::iterator i = game_objects.begin();
 693       i != game_objects.end(); ) {
 694     GameObject* object = *i;
 695     if(!object->is_valid()) {
 696       delete object;
 697       i = game_objects.erase(i);
 698     } else {
 699       ++i;
 700     }
 701   }
 702
 703   bool enter_level = false;
 704   if(main_controller->pressed(Controller::ACTION)
 705       || main_controller->pressed(Controller::JUMP)
 706       || main_controller->pressed(Controller::MENU_SELECT))
 707     enter_level = true;
 708   if(main_controller->pressed(Controller::PAUSE_MENU))
 709     on_escape_press();
 710
 711   if (enter_level && !tux->is_moving())
 712     {
 713       /* Check special tile action */
 714       SpecialTile* special_tile = at_special_tile();
 715       if(special_tile)
 716         {
 717         if (special_tile->teleport_dest != Vector(-1,-1))
 718           {
 719           // TODO: an animation, camera scrolling or a fading would be a nice touch
 720           sound_manager->play_sound("warp");
 721           tux->back_direction = D_NONE;
 722           tux->set_tile_pos(special_tile->teleport_dest);
 723           SDL_Delay(1000);
 724           }
 725         }
 726
 727       /* Check level action */
 728       bool level_finished = true;
 729       Level* level = at_level();
 730       if (!level)
 731         {
 732         std::cout << "No level to enter at: "
 733           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y
 734           << std::endl;
 735         return;
 736         }
 737
 738
 739       if (level->pos == tux->get_tile_pos())
 740         {
 741           PlayerStatus old_player_status = player_status;
 742
 743           // do a shriking fade to the level
 744           shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),
 745                              (level->pos.y*32 + 16 + offset.y)), 500);
 746           GameSession session(get_resource_filename(levels_path + level->name),
 747                               ST_GL_LOAD_LEVEL_FILE, &level->statistics);
 748
 749           switch (session.run())
 750             {
 751             case GameSession::ES_LEVEL_FINISHED:
 752               {
 753                 level_finished = true;
 754                 bool old_level_state = level->solved;
 755                 level->solved = true;
 756
 757                 // deal with statistics
 758                 level->statistics.merge(global_stats);
 759                 calculate_total_stats();
 760
 761                 if (old_level_state != level->solved && level->auto_path)
 762                   { // Try to detect the next direction to which we should walk
 763                     // FIXME: Mostly a hack
 764                     Direction dir = D_NONE;
 765
 766                     const Tile* tile = at(tux->get_tile_pos());
 767
 768                     if (tile->getData() & Tile::WORLDMAP_NORTH
 769                         && tux->back_direction != D_NORTH)
 770                       dir = D_NORTH;
 771                     else if (tile->getData() & Tile::WORLDMAP_SOUTH
 772                         && tux->back_direction != D_SOUTH)
 773                       dir = D_SOUTH;
 774                     else if (tile->getData() & Tile::WORLDMAP_EAST
 775                         && tux->back_direction != D_EAST)
 776                       dir = D_EAST;
 777                     else if (tile->getData() & Tile::WORLDMAP_WEST
 778                         && tux->back_direction != D_WEST)
 779                       dir = D_WEST;
 780
 781                     if (dir != D_NONE)
 782                       {
 783                         tux->set_direction(dir);
 784                       }
 785                   }
 786               }
 787
 788               break;
 789             case GameSession::ES_LEVEL_ABORT:
 790               level_finished = false;
 791               /* In case the player's abort the level, keep it using the old
 792                   status. But the minimum lives and no bonus. */
 793               player_status.coins = old_player_status.coins;
 794               player_status.lives = std::min(old_player_status.lives, player_status.lives);
 795               player_status.bonus = NO_BONUS;
 796
 797               break;
 798             case GameSession::ES_GAME_OVER:
 799               {
 800               level_finished = false;
 801               /* draw an end screen */
 802               /* TODO: in the future, this should make a dialog a la SuperMario, asking
 803               if the player wants to restart the world map with no score and from
 804               level 1 */
 805               char str[80];
 806
 807               DrawingContext context;
 808               context.draw_gradient(Color (200,240,220), Color(200,200,220),
 809                   LAYER_BACKGROUND0);
 810
 811               context.draw_text(blue_text, _("GAMEOVER"),
 812                   Vector(SCREEN_WIDTH/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 813
 814               sprintf(str, _("COINS: %d"), player_status.coins);
 815               context.draw_text(gold_text, str,
 816                   Vector(SCREEN_WIDTH/2, SCREEN_WIDTH - 32), CENTER_ALLIGN,
 817                   LAYER_FOREGROUND1);
 818
 819               total_stats.draw_message_info(context, _("Total Statistics"));
 820
 821               context.do_drawing();
 822
 823               wait_for_event(2.0, 6.0);
 824
 825               quit = true;
 826               player_status.reset();
 827               break;
 828               }
 829             case GameSession::ES_NONE:
 830               assert(false);
 831               // Should never be reached
 832               break;
 833             }
 834
 835           sound_manager->play_music(song);
 836           Menu::set_current(0);
 837           if (!savegame_file.empty())
 838             savegame(savegame_file);
 839         }
 840       /* The porpose of the next checking is that if the player lost
 841          the level (in case there is one), don't show anything */
 842       if(level_finished) {
 843         if (!level->extro_filename.empty()) {
 844           // Display a text file
 845           std::string filename = levels_path + level->extro_filename;
 846           display_text_file(filename);
 847         }
 848
 849         if (!level->next_worldmap.empty())
 850           {
 851           // Load given worldmap
 852           loadmap(level->next_worldmap);
 853           }
 854         if (level->quit_worldmap)
 855           quit = true;
 856         }
 857     }
 858   else
 859     {
 860 //      tux->set_direction(input_direction);
 861     }
 862 }
 863
 864 const Tile*
 865 WorldMap::at(Vector p)
 866 {
 867   return solids->get_tile((int) p.x, (int) p.y);
 868 }
 869
 870 WorldMap::Level*
 871 WorldMap::at_level()
 872 {
 873   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 874     {
 875       if (i->pos == tux->get_tile_pos())
 876         return &*i;
 877     }
 878
 879   return 0;
 880 }
 881
 882 WorldMap::SpecialTile*
 883 WorldMap::at_special_tile()
 884 {
 885   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 886     {
 887       if (i->pos == tux->get_tile_pos())
 888         return &*i;
 889     }
 890
 891   return 0;
 892 }
 893
 894 void
 895 WorldMap::draw(DrawingContext& context)
 896 {
 897   for(GameObjects::iterator i = game_objects.begin();
 898       i != game_objects.end(); ++i) {
 899     GameObject* object = *i;
 900     object->draw(context);
 901   }
 902
 903   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 904     {
 905       if (i->solved)
 906         context.draw_surface(leveldot_green,
 907             Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 908       else
 909         context.draw_surface(leveldot_red,
 910             Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 911     }
 912
 913   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 914     {
 915       if(i->invisible)
 916         continue;
 917
 918       if (i->teleport_dest != Vector(-1, -1))
 919         context.draw_surface(teleporterdot,
 920                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 921
 922       else if (!i->map_message.empty() && !i->passive_message)
 923         context.draw_surface(messagedot,
 924                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 925     }
 926
 927   draw_status(context);
 928 }
 929
 930 void
 931 WorldMap::draw_status(DrawingContext& context)
 932 {
 933   context.push_transform();
 934   context.set_translation(Vector(0, 0));
 935
 936   player_status.draw(context);
 937
 938   if (!tux->is_moving())
 939     {
 940       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 941         {
 942           if (i->pos == tux->get_tile_pos())
 943             {
 944               if(i->title == "")
 945                 get_level_title(*i);
 946
 947               context.draw_text(white_text, i->title,
 948                   Vector(SCREEN_WIDTH/2,
 949                          SCREEN_HEIGHT - white_text->get_height() - 30),
 950                   CENTER_ALLIGN, LAYER_FOREGROUND1);
 951
 952               i->statistics.draw_worldmap_info(context);
 953               break;
 954             }
 955         }
 956       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 957         {
 958           if (i->pos == tux->get_tile_pos())
 959             {
 960                /* Display an in-map message in the map, if any as been selected */
 961               if(!i->map_message.empty() && !i->passive_message)
 962                 context.draw_text(gold_text, i->map_message,
 963                     Vector(SCREEN_WIDTH/2,
 964                            SCREEN_HEIGHT - white_text->get_height() - 60),
 965                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 966               break;
 967             }
 968         }
 969     }
 970   /* Display a passive message in the map, if needed */
 971   if(passive_message_timer.check())
 972     context.draw_text(gold_text, passive_message,
 973             Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT - white_text->get_height() - 60),
 974             CENTER_ALLIGN, LAYER_FOREGROUND1);
 975
 976   context.pop_transform();
 977 }
 978
 979 void
 980 WorldMap::display()
 981 {
 982   Menu::set_current(0);
 983
 984   quit = false;
 985
 986   song = sound_manager->load_music(datadir +  "/music/" + music);
 987   sound_manager->play_music(song);
 988
 989   if(!intro_displayed && intro_filename != "") {
 990     std::string filename = levels_path + intro_filename;
 991     display_text_file(filename);
 992     intro_displayed = true;
 993   }
 994
 995   Uint32 lastticks = SDL_GetTicks();
 996   DrawingContext context;
 997   while(!quit) {
 998     Uint32 ticks = SDL_GetTicks();
 999     float elapsed_time = float(ticks - lastticks) / 1000;
1000     global_time += elapsed_time;
1001     lastticks = ticks;
1002
1003     // 40 fps minimum // TODO use same code as in GameSession here
1004     if(elapsed_time > .025)
1005       elapsed_time = .025;
1006
1007     Vector tux_pos = tux->get_pos();
1008     offset.x = tux_pos.x - SCREEN_WIDTH/2;
1009     offset.y = tux_pos.y - SCREEN_HEIGHT/2;
1010
1011     if (offset.x < 0)
1012       offset.x = 0;
1013     if (offset.y < 0)
1014       offset.y = 0;
1015
1016     if (offset.x > solids->get_width()*32 - SCREEN_WIDTH)
1017       offset.x = solids->get_width()*32 - SCREEN_WIDTH;
1018     if (offset.y > solids->get_height()*32 - SCREEN_HEIGHT)
1019       offset.y = solids->get_height()*32 - SCREEN_HEIGHT;
1020
1021     context.push_transform();
1022     context.set_translation(offset);
1023     draw(context);
1024     context.pop_transform();
1025     get_input();
1026     update(elapsed_time);
1027
1028     if(Menu::current()) {
1029       Menu::current()->draw(context);
1030     }
1031
1032     context.do_drawing();
1033   }
1034 }
1035
1036 void
1037 WorldMap::savegame(const std::string& filename)
1038 {
1039   if(filename == "")
1040     return;
1041
1042   std::ofstream file(filename.c_str(), std::ios::out);
1043   lisp::Writer writer(file);
1044
1045   int nb_solved_levels = 0, total_levels = 0;
1046   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
1047     ++total_levels;
1048     if (i->solved)
1049       ++nb_solved_levels;
1050   }
1051   char nb_solved_levels_str[80], total_levels_str[80];
1052   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1053   sprintf(total_levels_str, "%d", total_levels);
1054
1055   writer.write_comment("Worldmap save file");
1056
1057   writer.start_list("supertux-savegame");
1058
1059   writer.write_int("version", 1);
1060   writer.write_string("title",
1061       std::string(name + " - " + nb_solved_levels_str+"/"+total_levels_str));
1062   writer.write_string("map", map_filename);
1063   writer.write_bool("intro-displayed", intro_displayed);
1064
1065   writer.start_list("tux");
1066
1067   writer.write_float("x", tux->get_tile_pos().x);
1068   writer.write_float("y", tux->get_tile_pos().y);
1069   writer.write_string("back", direction_to_string(tux->back_direction));
1070   player_status.write(writer);
1071   writer.write_string("back", direction_to_string(tux->back_direction));
1072
1073   writer.end_list("tux");
1074
1075   writer.start_list("levels");
1076
1077   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1078     {
1079       if (i->solved)
1080         {
1081         writer.start_list("level");
1082
1083         writer.write_string("name", i->name);
1084         writer.write_bool("solved", true);
1085         i->statistics.write(writer);
1086
1087         writer.end_list("level");
1088         }
1089     }
1090
1091   writer.end_list("levels");
1092
1093   writer.end_list("supertux-savegame");
1094 }
1095
1096 void
1097 WorldMap::loadgame(const std::string& filename)
1098 {
1099   std::cout << "loadgame: " << filename << std::endl;
1100   savegame_file = filename;
1101
1102   try {
1103     lisp::Parser parser;
1104     std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
1105
1106     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
1107     if(!savegame)
1108       throw std::runtime_error("File is not a supertux-savegame file.");
1109
1110     /* Get the Map filename and then load it before setting level settings */
1111     std::string cur_map_filename = map_filename;
1112     savegame->get("map", map_filename);
1113     load_map();
1114
1115     savegame->get("intro-displayed", intro_displayed);
1116     savegame->get("lives", player_status.lives);
1117     savegame->get("coins", player_status.coins);
1118     savegame->get("max-score-multiplier", player_status.max_score_multiplier);
1119     if (player_status.lives < 0)
1120       player_status.reset();
1121
1122     const lisp::Lisp* tux_lisp = savegame->get_lisp("tux");
1123     if(tux)
1124     {
1125       Vector p;
1126       std::string back_str = "none";
1127
1128       tux_lisp->get("x", p.x);
1129       tux_lisp->get("y", p.y);
1130       tux_lisp->get("back", back_str);
1131       player_status.read(*tux_lisp);
1132
1133       tux->back_direction = string_to_direction(back_str);
1134       tux->set_tile_pos(p);
1135     }
1136
1137     const lisp::Lisp* levels_lisp = savegame->get_lisp("levels");
1138     if(levels_lisp) {
1139       lisp::ListIterator iter(levels_lisp);
1140       while(iter.next()) {
1141         if(iter.item() == "level") {
1142           std::string name;
1143           bool solved = false;
1144
1145           const lisp::Lisp* level = iter.lisp();
1146           level->get("name", name);
1147           level->get("solved", solved);
1148
1149           for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1150           {
1151             if (name == i->name)
1152             {
1153               i->solved = solved;
1154               i->statistics.parse(*level);
1155               break;
1156             }
1157           }
1158         } else {
1159           std::cerr << "Unknown token '" << iter.item()
1160                     << "' in levels block in worldmap.\n";
1161         }
1162       }
1163     }
1164   } catch(std::exception& e) {
1165     std::cerr << "Problem loading game '" << filename << "': " << e.what()
1166               << "\n";
1167     load_map();
1168     player_status.reset();
1169   }
1170
1171   calculate_total_stats();
1172 }
1173
1174 void
1175 WorldMap::loadmap(const std::string& filename)
1176 {
1177   savegame_file = "";
1178   map_filename = filename;
1179   load_map();
1180 }
1181
1182 } // namespace WorldMapNS