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 #include <physfs.h>
  29
  30 #include "gettext.hpp"
  31 #include "msg.hpp"
  32 #include "video/surface.hpp"
  33 #include "video/screen.hpp"
  34 #include "video/drawing_context.hpp"
  35 #include "sprite/sprite_manager.hpp"
  36 #include "audio/sound_manager.hpp"
  37 #include "lisp/parser.hpp"
  38 #include "lisp/lisp.hpp"
  39 #include "lisp/list_iterator.hpp"
  40 #include "lisp/writer.hpp"
  41 #include "game_session.hpp"
  42 #include "sector.hpp"
  43 #include "worldmap.hpp"
  44 #include "resources.hpp"
  45 #include "misc.hpp"
  46 #include "player_status.hpp"
  47 #include "textscroller.hpp"
  48 #include "main.hpp"
  49 #include "spawn_point.hpp"
  50 #include "file_system.hpp"
  51 #include "gui/menu.hpp"
  52 #include "gui/mousecursor.hpp"
  53 #include "control/joystickkeyboardcontroller.hpp"
  54 #include "object/background.hpp"
  55 #include "object/tilemap.hpp"
  56 #include "scripting/script_interpreter.hpp"
  57 #include "exceptions.hpp"
  58
  59 Menu* worldmap_menu  = 0;
  60
  61 static const float TUXSPEED = 200;
  62 static const float map_message_TIME = 2.8;
  63
  64 namespace WorldMapNS {
  65
  66 Direction reverse_dir(Direction direction)
  67 {
  68   switch(direction)
  69     {
  70     case D_WEST:
  71       return D_EAST;
  72     case D_EAST:
  73       return D_WEST;
  74     case D_NORTH:
  75       return D_SOUTH;
  76     case D_SOUTH:
  77       return D_NORTH;
  78     case D_NONE:
  79       return D_NONE;
  80     }
  81   return D_NONE;
  82 }
  83
  84 std::string
  85 direction_to_string(Direction direction)
  86 {
  87   switch(direction)
  88     {
  89     case D_WEST:
  90       return "west";
  91     case D_EAST:
  92       return "east";
  93     case D_NORTH:
  94       return "north";
  95     case D_SOUTH:
  96       return "south";
  97     default:
  98       return "none";
  99     }
 100 }
 101
 102 Direction
 103 string_to_direction(const std::string& directory)
 104 {
 105   if (directory == "west")
 106     return D_WEST;
 107   else if (directory == "east")
 108     return D_EAST;
 109   else if (directory == "north")
 110     return D_NORTH;
 111   else if (directory == "south")
 112     return D_SOUTH;
 113   else
 114     return D_NONE;
 115 }
 116
 117 //---------------------------------------------------------------------------
 118
 119 Tux::Tux(WorldMap* worldmap_)
 120   : worldmap(worldmap_)
 121 {
 122   tux_sprite = sprite_manager->create("images/worldmap/common/tux.sprite");
 123
 124   offset = 0;
 125   moving = false;
 126   direction = D_NONE;
 127   input_direction = D_NONE;
 128 }
 129
 130 Tux::~Tux()
 131 {
 132   delete tux_sprite;
 133 }
 134
 135 void
 136 Tux::draw(DrawingContext& context)
 137 {
 138   switch (player_status->bonus) {
 139     case GROWUP_BONUS:
 140       tux_sprite->set_action(moving ? "large-walking" : "large-stop");
 141       break;
 142     case FIRE_BONUS:
 143       tux_sprite->set_action(moving ? "fire-walking" : "fire-stop");
 144       break;
 145     case NO_BONUS:
 146       tux_sprite->set_action(moving ? "small-walking" : "small-stop");
 147       break;
 148     default:
 149       msg_debug("Bonus type not handled in worldmap.");
 150       tux_sprite->set_action("large-stop");
 151       break;
 152   }
 153
 154   tux_sprite->draw(context, get_pos(), LAYER_OBJECTS);
 155 }
 156
 157
 158 Vector
 159 Tux::get_pos()
 160 {
 161   float x = tile_pos.x * 32;
 162   float y = tile_pos.y * 32;
 163
 164   switch(direction)
 165     {
 166     case D_WEST:
 167       x -= offset - 32;
 168       break;
 169     case D_EAST:
 170       x += offset - 32;
 171       break;
 172     case D_NORTH:
 173       y -= offset - 32;
 174       break;
 175     case D_SOUTH:
 176       y += offset - 32;
 177       break;
 178     case D_NONE:
 179       break;
 180     }
 181
 182   return Vector(x, y);
 183 }
 184
 185 void
 186 Tux::stop()
 187 {
 188   offset = 0;
 189   direction = D_NONE;
 190   input_direction = D_NONE;
 191   moving = false;
 192 }
 193
 194 void
 195 Tux::set_direction(Direction dir)
 196 {
 197   input_direction = dir;
 198 }
 199
 200 void
 201 Tux::update(float delta)
 202 {
 203   // check controller
 204   if(main_controller->pressed(Controller::UP))
 205     input_direction = D_NORTH;
 206   else if(main_controller->pressed(Controller::DOWN))
 207     input_direction = D_SOUTH;
 208   else if(main_controller->pressed(Controller::LEFT))
 209     input_direction = D_WEST;
 210   else if(main_controller->pressed(Controller::RIGHT))
 211     input_direction = D_EAST;
 212
 213   if(!moving)
 214     {
 215       if (input_direction != D_NONE)
 216         {
 217           WorldMap::Level* level = worldmap->at_level();
 218
 219           // We got a new direction, so lets start walking when possible
 220           Vector next_tile;
 221           if ((!level || level->solved)
 222               && worldmap->path_ok(input_direction, tile_pos, &next_tile))
 223             {
 224               tile_pos = next_tile;
 225               moving = true;
 226               direction = input_direction;
 227               back_direction = reverse_dir(direction);
 228             }
 229           else if (input_direction == back_direction)
 230             {
 231               moving = true;
 232               direction = input_direction;
 233               tile_pos = worldmap->get_next_tile(tile_pos, direction);
 234               back_direction = reverse_dir(direction);
 235             }
 236         }
 237     }
 238   else
 239     {
 240       // Let tux walk
 241       offset += TUXSPEED * delta;
 242
 243       if (offset > 32)
 244         { // We reached the next tile, so we check what to do now
 245           offset -= 32;
 246
 247           WorldMap::SpecialTile* special_tile = worldmap->at_special_tile();
 248           if(special_tile && special_tile->passive_message)
 249             {  // direction and the apply_action_ are opposites, since they "see"
 250                // directions in a different way
 251             if((direction == D_NORTH && special_tile->apply_action_south) ||
 252                (direction == D_SOUTH && special_tile->apply_action_north) ||
 253                (direction == D_WEST && special_tile->apply_action_east) ||
 254                (direction == D_EAST && special_tile->apply_action_west))
 255               {
 256               worldmap->passive_message = special_tile->map_message;
 257               worldmap->passive_message_timer.start(map_message_TIME);
 258               }
 259             }
 260
 261           if (worldmap->at(tile_pos)->getData() & Tile::WORLDMAP_STOP ||
 262              (special_tile && !special_tile->passive_message) ||
 263               worldmap->at_level())
 264             {
 265               if(special_tile && !special_tile->map_message.empty() &&
 266                 !special_tile->passive_message)
 267                 worldmap->passive_message_timer.start(0);
 268               stop();
 269             }
 270           else
 271             {
 272               const Tile* tile = worldmap->at(tile_pos);
 273               if (direction != input_direction)
 274                 {
 275                   // Turn to a new direction
 276                   const Tile* tile = worldmap->at(tile_pos);
 277
 278                   if((tile->getData() & Tile::WORLDMAP_NORTH
 279                       && input_direction == D_NORTH) ||
 280                      (tile->getData() & Tile::WORLDMAP_SOUTH
 281                       && input_direction == D_SOUTH) ||
 282                      (tile->getData() & Tile::WORLDMAP_EAST
 283                       && input_direction == D_EAST) ||
 284                      (tile->getData() & Tile::WORLDMAP_WEST
 285                       && input_direction == D_WEST))
 286                     {  // player has changed direction during auto-movement
 287                       direction = input_direction;
 288                       back_direction = reverse_dir(direction);
 289                     }
 290                   else
 291                     {  // player has changed to impossible tile
 292                       back_direction = reverse_dir(direction);
 293                       stop();
 294                     }
 295                 }
 296               else
 297                 {
 298                 Direction dir = D_NONE;
 299
 300                 if (tile->getData() & Tile::WORLDMAP_NORTH
 301                     && back_direction != D_NORTH)
 302                   dir = D_NORTH;
 303                 else if (tile->getData() & Tile::WORLDMAP_SOUTH
 304                     && back_direction != D_SOUTH)
 305                   dir = D_SOUTH;
 306                 else if (tile->getData() & Tile::WORLDMAP_EAST
 307                     && back_direction != D_EAST)
 308                   dir = D_EAST;
 309                 else if (tile->getData() & Tile::WORLDMAP_WEST
 310                     && back_direction != D_WEST)
 311                   dir = D_WEST;
 312
 313                 if (dir != D_NONE)
 314                   {
 315                   direction = dir;
 316                   input_direction = direction;
 317                   back_direction = reverse_dir(direction);
 318                   }
 319                 else
 320                   {
 321                   // Should never be reached if tiledata is good
 322                   stop();
 323                   return;
 324                   }
 325                 }
 326
 327               // Walk automatically to the next tile
 328               if(direction != D_NONE)
 329                 {
 330                 Vector next_tile;
 331                 if (worldmap->path_ok(direction, tile_pos, &next_tile))
 332                   {
 333                   tile_pos = next_tile;
 334                   }
 335                 else
 336                   {
 337                   puts("Tilemap data is buggy");
 338                   stop();
 339                   }
 340                 }
 341             }
 342         }
 343     }
 344 }
 345
 346 //---------------------------------------------------------------------------
 347
 348 WorldMap::WorldMap()
 349   : tux(0), solids(0)
 350 {
 351   tile_manager = new TileManager("images/worldmap.strf");
 352
 353   tux = new Tux(this);
 354   add_object(tux);
 355
 356   messagedot = new Surface("images/worldmap/common/messagedot.png");
 357   teleporterdot = new Surface("images/worldmap/common/teleporterdot.png");
 358
 359   name = "<no title>";
 360   music = "music/salcon.ogg";
 361   intro_displayed = false;
 362
 363   total_stats.reset();
 364 }
 365
 366 WorldMap::~WorldMap()
 367 {
 368   clear_objects();
 369   for(SpawnPoints::iterator i = spawn_points.begin();
 370       i != spawn_points.end(); ++i) {
 371     delete *i;
 372   }
 373   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
 374     Level& level = *i;
 375     delete level.sprite;
 376   }
 377
 378   delete tile_manager;
 379
 380   delete messagedot;
 381   delete teleporterdot;
 382 }
 383
 384 void
 385 WorldMap::add_object(GameObject* object)
 386 {
 387   TileMap* tilemap = dynamic_cast<TileMap*> (object);
 388   if(tilemap != 0 && tilemap->is_solid()) {
 389     solids = tilemap;
 390   }
 391
 392   game_objects.push_back(object);
 393 }
 394
 395 void
 396 WorldMap::clear_objects()
 397 {
 398   for(GameObjects::iterator i = game_objects.begin();
 399       i != game_objects.end(); ++i)
 400     delete *i;
 401   game_objects.clear();
 402   solids = 0;
 403   tux = new Tux(this);
 404   add_object(tux);
 405 }
 406
 407 // Don't forget to set map_filename before calling this
 408 void
 409 WorldMap::load_map()
 410 {
 411   levels_path = FileSystem::dirname(map_filename);
 412
 413   try {
 414     lisp::Parser parser;
 415     std::auto_ptr<lisp::Lisp> root (parser.parse(map_filename));
 416
 417     const lisp::Lisp* lisp = root->get_lisp("supertux-worldmap");
 418     if(!lisp)
 419       throw std::runtime_error("file isn't a supertux-worldmap file.");
 420
 421     clear_objects();
 422     lisp::ListIterator iter(lisp);
 423     while(iter.next()) {
 424       if(iter.item() == "tilemap") {
 425         add_object(new TileMap(*(iter.lisp()), tile_manager));
 426       } else if(iter.item() == "background") {
 427         add_object(new Background(*(iter.lisp())));
 428       } else if(iter.item() == "properties") {
 429         const lisp::Lisp* props = iter.lisp();
 430         props->get("name", name);
 431         props->get("music", music);
 432       } else if(iter.item() == "intro-script") {
 433         iter.value()->get(intro_script);
 434       } else if(iter.item() == "spawnpoint") {
 435         SpawnPoint* sp = new SpawnPoint(iter.lisp());
 436         spawn_points.push_back(sp);
 437       } else if(iter.item() == "level") {
 438         parse_level_tile(iter.lisp());
 439       } else if(iter.item() == "special-tile") {
 440         parse_special_tile(iter.lisp());
 441       } else {
 442         msg_warning("Unknown token '" << iter.item() << "' in worldmap");
 443       }
 444     }
 445     if(solids == 0)
 446       throw std::runtime_error("No solid tilemap specified");
 447
 448     // search for main spawnpoint
 449     for(SpawnPoints::iterator i = spawn_points.begin();
 450         i != spawn_points.end(); ++i) {
 451       SpawnPoint* sp = *i;
 452       if(sp->name == "main") {
 453         Vector p = sp->pos;
 454         tux->set_tile_pos(p);
 455         break;
 456       }
 457     }
 458
 459   } catch(std::exception& e) {
 460     std::stringstream msg;
 461     msg << "Problem when parsing worldmap '" << map_filename << "': " <<
 462       e.what();
 463     throw std::runtime_error(msg.str());
 464   }
 465 }
 466
 467 void
 468 WorldMap::parse_special_tile(const lisp::Lisp* lisp)
 469 {
 470   SpecialTile special_tile;
 471
 472   lisp->get("x", special_tile.pos.x);
 473   lisp->get("y", special_tile.pos.y);
 474   lisp->get("map-message", special_tile.map_message);
 475   special_tile.passive_message = false;
 476   lisp->get("passive-message", special_tile.passive_message);
 477   special_tile.teleport_dest = Vector(-1,-1);
 478   lisp->get("teleport-to-x", special_tile.teleport_dest.x);
 479   lisp->get("teleport-to-y", special_tile.teleport_dest.y);
 480   special_tile.invisible = false;
 481   lisp->get("invisible-tile", special_tile.invisible);
 482
 483   special_tile.apply_action_north = true;
 484   special_tile.apply_action_south = true;
 485   special_tile.apply_action_east = true;
 486   special_tile.apply_action_west = true;
 487
 488   std::string apply_direction;
 489   lisp->get("apply-to-direction", apply_direction);
 490   if(!apply_direction.empty()) {
 491     special_tile.apply_action_north = false;
 492     special_tile.apply_action_south = false;
 493     special_tile.apply_action_east = false;
 494     special_tile.apply_action_west = false;
 495     if(apply_direction.find("north") != std::string::npos)
 496       special_tile.apply_action_north = true;
 497     if(apply_direction.find("south") != std::string::npos)
 498       special_tile.apply_action_south = true;
 499     if(apply_direction.find("east") != std::string::npos)
 500       special_tile.apply_action_east = true;
 501     if(apply_direction.find("west") != std::string::npos)
 502       special_tile.apply_action_west = true;
 503   }
 504
 505   special_tiles.push_back(special_tile);
 506 }
 507
 508 void
 509 WorldMap::parse_level_tile(const lisp::Lisp* level_lisp)
 510 {
 511   Level level;
 512
 513   level.solved = false;
 514
 515   level.north = true;
 516   level.east  = true;
 517   level.south = true;
 518   level.west  = true;
 519
 520   std::string sprite = "images/worldmap/common/leveldot.sprite";
 521   level_lisp->get("sprite", sprite);
 522   level.sprite = sprite_manager->create(sprite);
 523
 524   level_lisp->get("extro-script", level.extro_script);
 525   level_lisp->get("next-worldmap", level.next_worldmap);
 526
 527   level.quit_worldmap = false;
 528   level_lisp->get("quit-worldmap", level.quit_worldmap);
 529
 530   level_lisp->get("name", level.name);
 531
 532   if (!PHYSFS_exists((levels_path + level.name).c_str()))
 533   {
 534         // Do we want to bail out instead...? We might get messages from modders
 535         // who can't make their levels run because they're too dumb to watch
 536         // their terminals...
 537     msg_warning("level file '" << level.name
 538       << "' does not exist and will not be added to the worldmap");
 539     return;
 540   }
 541
 542   level_lisp->get("x", level.pos.x);
 543   level_lisp->get("y", level.pos.y);
 544
 545   level.auto_path = true;
 546   level_lisp->get("auto-path", level.auto_path);
 547
 548   level.vertical_flip = false;
 549   level_lisp->get("vertical-flip", level.vertical_flip);
 550
 551   levels.push_back(level);
 552 }
 553
 554 void
 555 WorldMap::get_level_title(Level& level)
 556 {
 557   /** get special_tile's title */
 558   level.title = "<no title>";
 559
 560   try {
 561     lisp::Parser parser;
 562     std::auto_ptr<lisp::Lisp> root (parser.parse(levels_path + level.name));
 563
 564     const lisp::Lisp* level_lisp = root->get_lisp("supertux-level");
 565     if(!level_lisp)
 566       return;
 567
 568     level_lisp->get("name", level.title);
 569   } catch(std::exception& e) {
 570     msg_warning("Problem when reading leveltitle: " << e.what());
 571     return;
 572   }
 573 }
 574
 575 void WorldMap::calculate_total_stats()
 576 {
 577   total_stats.reset();
 578   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 579     {
 580     if (i->solved)
 581       {
 582       total_stats += i->statistics;
 583       }
 584     }
 585 }
 586
 587 void
 588 WorldMap::on_escape_press()
 589 {
 590   // Show or hide the menu
 591   if(!Menu::current()) {
 592     Menu::set_current(worldmap_menu);
 593     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 594   } else {
 595     Menu::set_current(0);
 596   }
 597 }
 598
 599 void
 600 WorldMap::get_input()
 601 {
 602   main_controller->update();
 603
 604   SDL_Event event;
 605   while (SDL_PollEvent(&event)) {
 606     if (Menu::current())
 607       Menu::current()->event(event);
 608     main_controller->process_event(event);
 609     if(event.type == SDL_QUIT)
 610       throw graceful_shutdown();
 611   }
 612 }
 613
 614 Vector
 615 WorldMap::get_next_tile(Vector pos, Direction direction)
 616 {
 617   switch(direction) {
 618     case D_WEST:
 619       pos.x -= 1;
 620       break;
 621     case D_EAST:
 622       pos.x += 1;
 623       break;
 624     case D_NORTH:
 625       pos.y -= 1;
 626       break;
 627     case D_SOUTH:
 628       pos.y += 1;
 629       break;
 630     case D_NONE:
 631       break;
 632   }
 633   return pos;
 634 }
 635
 636 bool
 637 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 638 {
 639   *new_pos = get_next_tile(old_pos, direction);
 640
 641   if (!(new_pos->x >= 0 && new_pos->x < solids->get_width()
 642         && new_pos->y >= 0 && new_pos->y < solids->get_height()))
 643     { // New position is outsite the tilemap
 644       return false;
 645     }
 646   else
 647     { // Check if the tile allows us to go to new_pos
 648       switch(direction)
 649         {
 650         case D_WEST:
 651           return (at(old_pos)->getData() & Tile::WORLDMAP_WEST
 652               && at(*new_pos)->getData() & Tile::WORLDMAP_EAST);
 653
 654         case D_EAST:
 655           return (at(old_pos)->getData() & Tile::WORLDMAP_EAST
 656               && at(*new_pos)->getData() & Tile::WORLDMAP_WEST);
 657
 658         case D_NORTH:
 659           return (at(old_pos)->getData() & Tile::WORLDMAP_NORTH
 660               && at(*new_pos)->getData() & Tile::WORLDMAP_SOUTH);
 661
 662         case D_SOUTH:
 663           return (at(old_pos)->getData() & Tile::WORLDMAP_SOUTH
 664               && at(*new_pos)->getData() & Tile::WORLDMAP_NORTH);
 665
 666         case D_NONE:
 667           assert(!"path_ok() can't work if direction is NONE");
 668         }
 669       return false;
 670     }
 671 }
 672
 673 void
 674 WorldMap::update(float delta)
 675 {
 676   Menu* menu = Menu::current();
 677   if(menu) {
 678     menu->update();
 679
 680     if(menu == worldmap_menu) {
 681       switch (worldmap_menu->check())
 682       {
 683         case MNID_RETURNWORLDMAP: // Return to game
 684           Menu::set_current(0);
 685           break;
 686         case MNID_QUITWORLDMAP: // Quit Worldmap
 687           quit = true;
 688           break;
 689       }
 690     } else if(menu == options_menu) {
 691       process_options_menu();
 692     }
 693
 694     return;
 695   }
 696
 697   // update GameObjects
 698   for(GameObjects::iterator i = game_objects.begin();
 699       i != game_objects.end(); ++i) {
 700     GameObject* object = *i;
 701     object->update(delta);
 702   }
 703   // remove old GameObjects
 704   for(GameObjects::iterator i = game_objects.begin();
 705       i != game_objects.end(); ) {
 706     GameObject* object = *i;
 707     if(!object->is_valid()) {
 708       delete object;
 709       i = game_objects.erase(i);
 710     } else {
 711       ++i;
 712     }
 713   }
 714
 715   bool enter_level = false;
 716   if(main_controller->pressed(Controller::ACTION)
 717       || main_controller->pressed(Controller::JUMP)
 718       || main_controller->pressed(Controller::MENU_SELECT))
 719     enter_level = true;
 720   if(main_controller->pressed(Controller::PAUSE_MENU))
 721     on_escape_press();
 722
 723   if (enter_level && !tux->is_moving())
 724     {
 725       /* Check special tile action */
 726       SpecialTile* special_tile = at_special_tile();
 727       if(special_tile)
 728         {
 729         if (special_tile->teleport_dest != Vector(-1,-1))
 730           {
 731           // TODO: an animation, camera scrolling or a fading would be a nice touch
 732           sound_manager->play("sounds/warp.wav");
 733           tux->back_direction = D_NONE;
 734           tux->set_tile_pos(special_tile->teleport_dest);
 735           SDL_Delay(1000);
 736           }
 737         }
 738
 739       /* Check level action */
 740       bool level_finished = true;
 741       Level* level = at_level();
 742       if (!level)
 743         {
 744         msg_warning("No level to enter at: "
 745           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y);
 746         return;
 747         }
 748
 749
 750       if (level->pos == tux->get_tile_pos())
 751         {
 752           sound_manager->stop_music();
 753           PlayerStatus old_player_status;
 754           old_player_status = *player_status;
 755
 756           // do a shriking fade to the level
 757           shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),
 758                              (level->pos.y*32 + 16 + offset.y)), 500);
 759           GameSession session(levels_path + level->name,
 760                               ST_GL_LOAD_LEVEL_FILE, &level->statistics);
 761
 762           switch (session.run())
 763             {
 764             case GameSession::ES_LEVEL_FINISHED:
 765               {
 766                 level_finished = true;
 767                 bool old_level_state = level->solved;
 768                 level->solved = true;
 769                 level->sprite->set_action("solved");
 770
 771                 // deal with statistics
 772                 level->statistics.merge(global_stats);
 773                 calculate_total_stats();
 774
 775                 if (old_level_state != level->solved && level->auto_path)
 776                   { // Try to detect the next direction to which we should walk
 777                     // FIXME: Mostly a hack
 778                     Direction dir = D_NONE;
 779
 780                     const Tile* tile = at(tux->get_tile_pos());
 781
 782                     if (tile->getData() & Tile::WORLDMAP_NORTH
 783                         && tux->back_direction != D_NORTH)
 784                       dir = D_NORTH;
 785                     else if (tile->getData() & Tile::WORLDMAP_SOUTH
 786                         && tux->back_direction != D_SOUTH)
 787                       dir = D_SOUTH;
 788                     else if (tile->getData() & Tile::WORLDMAP_EAST
 789                         && tux->back_direction != D_EAST)
 790                       dir = D_EAST;
 791                     else if (tile->getData() & Tile::WORLDMAP_WEST
 792                         && tux->back_direction != D_WEST)
 793                       dir = D_WEST;
 794
 795                     if (dir != D_NONE)
 796                       {
 797                         tux->set_direction(dir);
 798                       }
 799                   }
 800               }
 801
 802               break;
 803             case GameSession::ES_LEVEL_ABORT:
 804               level_finished = false;
 805               /* In case the player's abort the level, keep it using the old
 806                   status. But the minimum lives and no bonus. */
 807               player_status->coins = old_player_status.coins;
 808               player_status->lives = std::min(old_player_status.lives, player_status->lives);
 809               player_status->bonus = NO_BONUS;
 810
 811               break;
 812             case GameSession::ES_GAME_OVER:
 813               {
 814               level_finished = false;
 815               /* draw an end screen */
 816               /* TODO: in the future, this should make a dialog a la SuperMario, asking
 817               if the player wants to restart the world map with no score and from
 818               level 1 */
 819               char str[80];
 820
 821               DrawingContext context;
 822               context.draw_gradient(Color (200,240,220), Color(200,200,220),
 823                   LAYER_BACKGROUND0);
 824
 825               context.draw_text(blue_text, _("GAMEOVER"),
 826                   Vector(SCREEN_WIDTH/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 827
 828               sprintf(str, _("COINS: %d"), player_status->coins);
 829               context.draw_text(gold_text, str,
 830                   Vector(SCREEN_WIDTH/2, SCREEN_WIDTH - 32), CENTER_ALLIGN,
 831                   LAYER_FOREGROUND1);
 832
 833               total_stats.draw_message_info(context, _("Total Statistics"));
 834
 835               context.do_drawing();
 836
 837               wait_for_event(2.0, 6.0);
 838
 839               quit = true;
 840               player_status->reset();
 841               break;
 842               }
 843             case GameSession::ES_NONE:
 844               assert(false);
 845               // Should never be reached
 846               break;
 847             }
 848
 849           sound_manager->play_music(music);
 850           Menu::set_current(0);
 851           if (!savegame_file.empty())
 852             savegame(savegame_file);
 853         }
 854       /* The porpose of the next checking is that if the player lost
 855          the level (in case there is one), don't show anything */
 856       if(level_finished) {
 857         if (level->extro_script != "") {
 858           try {
 859             std::auto_ptr<ScriptInterpreter> interpreter
 860               (new ScriptInterpreter(levels_path));
 861             std::istringstream in(level->extro_script);
 862             interpreter->run_script(in, "level-extro-script");
 863             add_object(interpreter.release());
 864           } catch(std::exception& e) {
 865             msg_warning("Couldn't run level-extro-script:" << e.what());
 866           }
 867         }
 868
 869         if (!level->next_worldmap.empty())
 870           {
 871           // Load given worldmap
 872           loadmap(level->next_worldmap);
 873           }
 874         if (level->quit_worldmap)
 875           quit = true;
 876         }
 877     }
 878   else
 879     {
 880 //      tux->set_direction(input_direction);
 881     }
 882 }
 883
 884 const Tile*
 885 WorldMap::at(Vector p)
 886 {
 887   return solids->get_tile((int) p.x, (int) p.y);
 888 }
 889
 890 WorldMap::Level*
 891 WorldMap::at_level()
 892 {
 893   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 894     {
 895       if (i->pos == tux->get_tile_pos())
 896         return &*i;
 897     }
 898
 899   return 0;
 900 }
 901
 902 WorldMap::SpecialTile*
 903 WorldMap::at_special_tile()
 904 {
 905   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 906     {
 907       if (i->pos == tux->get_tile_pos())
 908         return &*i;
 909     }
 910
 911   return 0;
 912 }
 913
 914 void
 915 WorldMap::draw(DrawingContext& context)
 916 {
 917   for(GameObjects::iterator i = game_objects.begin();
 918       i != game_objects.end(); ++i) {
 919     GameObject* object = *i;
 920     object->draw(context);
 921   }
 922
 923   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 924     {
 925       const Level& level = *i;
 926       level.sprite->draw(context, level.pos*32 + Vector(16, 16), LAYER_TILES+1);
 927     }
 928
 929   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 930     {
 931       if(i->invisible)
 932         continue;
 933
 934       if (i->teleport_dest != Vector(-1, -1))
 935         context.draw_surface(teleporterdot,
 936                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 937
 938       else if (!i->map_message.empty() && !i->passive_message)
 939         context.draw_surface(messagedot,
 940                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 941     }
 942
 943   draw_status(context);
 944 }
 945
 946 void
 947 WorldMap::draw_status(DrawingContext& context)
 948 {
 949   context.push_transform();
 950   context.set_translation(Vector(0, 0));
 951
 952   player_status->draw(context);
 953
 954   if (!tux->is_moving())
 955     {
 956       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 957         {
 958           if (i->pos == tux->get_tile_pos())
 959             {
 960               if(i->title == "")
 961                 get_level_title(*i);
 962
 963               context.draw_text(white_text, i->title,
 964                   Vector(SCREEN_WIDTH/2,
 965                          SCREEN_HEIGHT - white_text->get_height() - 30),
 966                   CENTER_ALLIGN, LAYER_FOREGROUND1);
 967
 968               i->statistics.draw_worldmap_info(context);
 969               break;
 970             }
 971         }
 972       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 973         {
 974           if (i->pos == tux->get_tile_pos())
 975             {
 976                /* Display an in-map message in the map, if any as been selected */
 977               if(!i->map_message.empty() && !i->passive_message)
 978                 context.draw_text(gold_text, i->map_message,
 979                     Vector(SCREEN_WIDTH/2,
 980                            SCREEN_HEIGHT - white_text->get_height() - 60),
 981                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 982               break;
 983             }
 984         }
 985     }
 986   /* Display a passive message in the map, if needed */
 987   if(passive_message_timer.started())
 988     context.draw_text(gold_text, passive_message,
 989             Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT - white_text->get_height() - 60),
 990             CENTER_ALLIGN, LAYER_FOREGROUND1);
 991
 992   context.pop_transform();
 993 }
 994
 995 void
 996 WorldMap::display()
 997 {
 998   Menu::set_current(0);
 999
1000   quit = false;
1001
1002   sound_manager->play_music(music);
1003
1004   if(!intro_displayed && intro_script != "") {
1005     try {
1006       std::auto_ptr<ScriptInterpreter> interpreter
1007         (new ScriptInterpreter(levels_path));
1008       std::istringstream in(intro_script);
1009       interpreter->run_script(in, "worldmap-intro-script");
1010       add_object(interpreter.release());
1011     } catch(std::exception& e) {
1012       msg_warning("Couldn't execute worldmap-intro-script: "
1013         << e.what());
1014     }
1015
1016     intro_displayed = true;
1017   }
1018
1019   Uint32 lastticks = SDL_GetTicks();
1020   DrawingContext context;
1021   while(!quit) {
1022     Uint32 ticks = SDL_GetTicks();
1023     float elapsed_time = float(ticks - lastticks) / 1000;
1024     game_time += elapsed_time;
1025     lastticks = ticks;
1026
1027     // 40 fps minimum // TODO use same code as in GameSession here
1028     if(elapsed_time > .025)
1029       elapsed_time = .025;
1030
1031     Vector tux_pos = tux->get_pos();
1032     offset.x = tux_pos.x - SCREEN_WIDTH/2;
1033     offset.y = tux_pos.y - SCREEN_HEIGHT/2;
1034
1035     if (offset.x < 0)
1036       offset.x = 0;
1037     if (offset.y < 0)
1038       offset.y = 0;
1039
1040     if (offset.x > solids->get_width()*32 - SCREEN_WIDTH)
1041       offset.x = solids->get_width()*32 - SCREEN_WIDTH;
1042     if (offset.y > solids->get_height()*32 - SCREEN_HEIGHT)
1043       offset.y = solids->get_height()*32 - SCREEN_HEIGHT;
1044
1045     context.push_transform();
1046     context.set_translation(offset);
1047     draw(context);
1048     context.pop_transform();
1049     get_input();
1050     update(elapsed_time);
1051     sound_manager->update();
1052
1053     if(Menu::current()) {
1054       Menu::current()->draw(context);
1055     }
1056
1057     context.do_drawing();
1058   }
1059 }
1060
1061 void
1062 WorldMap::savegame(const std::string& filename)
1063 {
1064   if(filename == "")
1065     return;
1066
1067   std::string dir = FileSystem::dirname(filename);
1068   if(PHYSFS_exists(dir.c_str()) == 0 && PHYSFS_mkdir(dir.c_str()) != 0) {
1069     std::ostringstream msg;
1070     msg << "Couldn't create directory '" << dir << "' for savegame:"
1071         << PHYSFS_getLastError();
1072     throw std::runtime_error(msg.str());
1073   }
1074   if(!PHYSFS_isDirectory(dir.c_str())) {
1075     std::ostringstream msg;
1076     msg << "'" << dir << "' is not a directory.";
1077     throw std::runtime_error(msg.str());
1078   }
1079
1080   lisp::Writer writer(filename);
1081
1082   int nb_solved_levels = 0, total_levels = 0;
1083   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
1084     ++total_levels;
1085     if (i->solved)
1086       ++nb_solved_levels;
1087   }
1088   char nb_solved_levels_str[80], total_levels_str[80];
1089   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1090   sprintf(total_levels_str, "%d", total_levels);
1091
1092   writer.write_comment("Worldmap save file");
1093
1094   writer.start_list("supertux-savegame");
1095
1096   writer.write_int("version", 1);
1097   writer.write_string("title",
1098       std::string(name + " - " + nb_solved_levels_str+"/"+total_levels_str));
1099   writer.write_string("map", map_filename);
1100   writer.write_bool("intro-displayed", intro_displayed);
1101
1102   writer.start_list("tux");
1103
1104   writer.write_float("x", tux->get_tile_pos().x);
1105   writer.write_float("y", tux->get_tile_pos().y);
1106   writer.write_string("back", direction_to_string(tux->back_direction));
1107   player_status->write(writer);
1108   writer.write_string("back", direction_to_string(tux->back_direction));
1109
1110   writer.end_list("tux");
1111
1112   writer.start_list("levels");
1113
1114   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1115     {
1116       if (i->solved)
1117         {
1118         writer.start_list("level");
1119
1120         writer.write_string("name", i->name);
1121         writer.write_bool("solved", true);
1122         i->statistics.write(writer);
1123
1124         writer.end_list("level");
1125         }
1126     }
1127
1128   writer.end_list("levels");
1129
1130   writer.end_list("supertux-savegame");
1131 }
1132
1133 void
1134 WorldMap::loadgame(const std::string& filename)
1135 {
1136   msg_debug("loadgame: " << filename);
1137   savegame_file = filename;
1138
1139   if (PHYSFS_exists(filename.c_str())) // savegame exists
1140   {
1141     try {
1142       lisp::Parser parser;
1143
1144       std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
1145
1146       const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
1147       if(!savegame)
1148         throw std::runtime_error("File is not a supertux-savegame file.");
1149
1150       /* Get the Map filename and then load it before setting level settings */
1151       std::string cur_map_filename = map_filename;
1152       savegame->get("map", map_filename);
1153       load_map();
1154
1155       savegame->get("intro-displayed", intro_displayed);
1156       savegame->get("lives", player_status->lives);
1157       savegame->get("coins", player_status->coins);
1158       savegame->get("max-score-multiplier", player_status->max_score_multiplier);
1159       if (player_status->lives < 0)
1160       player_status->reset();
1161
1162       const lisp::Lisp* tux_lisp = savegame->get_lisp("tux");
1163       if(tux)
1164       {
1165         Vector p;
1166         std::string back_str = "none";
1167
1168         tux_lisp->get("x", p.x);
1169         tux_lisp->get("y", p.y);
1170         tux_lisp->get("back", back_str);
1171           player_status->read(*tux_lisp);
1172
1173         tux->back_direction = string_to_direction(back_str);
1174         tux->set_tile_pos(p);
1175       }
1176
1177       const lisp::Lisp* levels_lisp = savegame->get_lisp("levels");
1178       if(levels_lisp) {
1179         lisp::ListIterator iter(levels_lisp);
1180         while(iter.next()) {
1181           if(iter.item() == "level") {
1182             std::string name;
1183             bool solved = false;
1184
1185             const lisp::Lisp* level = iter.lisp();
1186             level->get("name", name);
1187             level->get("solved", solved);
1188
1189             for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1190             {
1191               if (name == i->name)
1192               {
1193                 i->solved = solved;
1194                 i->sprite->set_action(solved ? "solved" : "default");
1195                 i->statistics.parse(*level);
1196                 break;
1197               }
1198             }
1199           } else {
1200             msg_warning("Unknown token '" << iter.item()
1201                       << "' in levels block in worldmap");
1202           }
1203         }
1204       }
1205     } catch(std::exception& e) {
1206       msg_warning("Problem loading game '" << filename << "': " << e.what());
1207       load_map();
1208       player_status->reset();
1209     }
1210   }
1211   else
1212   {
1213         load_map();
1214     player_status->reset();
1215   }
1216
1217   calculate_total_stats();
1218 }
1219
1220 void
1221 WorldMap::loadmap(const std::string& filename)
1222 {
1223   savegame_file = "";
1224   map_filename = filename;
1225   load_map();
1226 }
1227
1228 } // namespace WorldMapNS