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-level");
 418     if(!lisp)
 419       throw std::runtime_error("file isn't a supertux-level file.");
 420
 421     lisp->get("name", name);
 422
 423     const lisp::Lisp* sector = lisp->get_lisp("sector");
 424     if(!sector)
 425       throw std::runtime_error("No sector sepcified in worldmap file.");
 426
 427     clear_objects();
 428     lisp::ListIterator iter(sector);
 429     while(iter.next()) {
 430       if(iter.item() == "tilemap") {
 431         add_object(new TileMap(*(iter.lisp()), tile_manager));
 432       } else if(iter.item() == "background") {
 433         add_object(new Background(*(iter.lisp())));
 434       } else if(iter.item() == "music") {
 435         iter.value()->get(music);
 436       } else if(iter.item() == "intro-script") {
 437         iter.value()->get(intro_script);
 438       } else if(iter.item() == "worldmap-spawnpoint") {
 439         SpawnPoint* sp = new SpawnPoint(iter.lisp());
 440         spawn_points.push_back(sp);
 441       } else if(iter.item() == "level") {
 442         parse_level_tile(iter.lisp());
 443       } else if(iter.item() == "special-tile") {
 444         parse_special_tile(iter.lisp());
 445       } else {
 446         msg_warning("Unknown token '" << iter.item() << "' in worldmap");
 447       }
 448     }
 449     if(solids == 0)
 450       throw std::runtime_error("No solid tilemap specified");
 451
 452     // search for main spawnpoint
 453     for(SpawnPoints::iterator i = spawn_points.begin();
 454         i != spawn_points.end(); ++i) {
 455       SpawnPoint* sp = *i;
 456       if(sp->name == "main") {
 457         Vector p = sp->pos;
 458         tux->set_tile_pos(p);
 459         break;
 460       }
 461     }
 462
 463   } catch(std::exception& e) {
 464     std::stringstream msg;
 465     msg << "Problem when parsing worldmap '" << map_filename << "': " <<
 466       e.what();
 467     throw std::runtime_error(msg.str());
 468   }
 469 }
 470
 471 void
 472 WorldMap::parse_special_tile(const lisp::Lisp* lisp)
 473 {
 474   SpecialTile special_tile;
 475
 476   lisp->get("x", special_tile.pos.x);
 477   lisp->get("y", special_tile.pos.y);
 478   lisp->get("map-message", special_tile.map_message);
 479   special_tile.passive_message = false;
 480   lisp->get("passive-message", special_tile.passive_message);
 481   special_tile.teleport_dest = Vector(-1,-1);
 482   lisp->get("teleport-to-x", special_tile.teleport_dest.x);
 483   lisp->get("teleport-to-y", special_tile.teleport_dest.y);
 484   special_tile.invisible = false;
 485   lisp->get("invisible-tile", special_tile.invisible);
 486
 487   special_tile.apply_action_north = true;
 488   special_tile.apply_action_south = true;
 489   special_tile.apply_action_east = true;
 490   special_tile.apply_action_west = true;
 491
 492   std::string apply_direction;
 493   lisp->get("apply-to-direction", apply_direction);
 494   if(!apply_direction.empty()) {
 495     special_tile.apply_action_north = false;
 496     special_tile.apply_action_south = false;
 497     special_tile.apply_action_east = false;
 498     special_tile.apply_action_west = false;
 499     if(apply_direction.find("north") != std::string::npos)
 500       special_tile.apply_action_north = true;
 501     if(apply_direction.find("south") != std::string::npos)
 502       special_tile.apply_action_south = true;
 503     if(apply_direction.find("east") != std::string::npos)
 504       special_tile.apply_action_east = true;
 505     if(apply_direction.find("west") != std::string::npos)
 506       special_tile.apply_action_west = true;
 507   }
 508
 509   special_tiles.push_back(special_tile);
 510 }
 511
 512 void
 513 WorldMap::parse_level_tile(const lisp::Lisp* level_lisp)
 514 {
 515   Level level;
 516
 517   level.solved = false;
 518
 519   level.north = true;
 520   level.east  = true;
 521   level.south = true;
 522   level.west  = true;
 523
 524   std::string sprite = "images/worldmap/common/leveldot.sprite";
 525   level_lisp->get("sprite", sprite);
 526   level.sprite = sprite_manager->create(sprite);
 527
 528   level_lisp->get("extro-script", level.extro_script);
 529   level_lisp->get("next-worldmap", level.next_worldmap);
 530
 531   level.quit_worldmap = false;
 532   level_lisp->get("quit-worldmap", level.quit_worldmap);
 533
 534   level_lisp->get("name", level.name);
 535
 536   if (!PHYSFS_exists((levels_path + level.name).c_str()))
 537   {
 538         // Do we want to bail out instead...? We might get messages from modders
 539         // who can't make their levels run because they're too dumb to watch
 540         // their terminals...
 541     msg_warning("level file '" << level.name
 542       << "' does not exist and will not be added to the worldmap");
 543     return;
 544   }
 545
 546   level_lisp->get("x", level.pos.x);
 547   level_lisp->get("y", level.pos.y);
 548
 549   level.auto_path = true;
 550   level_lisp->get("auto-path", level.auto_path);
 551
 552   level.vertical_flip = false;
 553   level_lisp->get("vertical-flip", level.vertical_flip);
 554
 555   levels.push_back(level);
 556 }
 557
 558 void
 559 WorldMap::get_level_title(Level& level)
 560 {
 561   /** get special_tile's title */
 562   level.title = "<no title>";
 563
 564   try {
 565     lisp::Parser parser;
 566     std::auto_ptr<lisp::Lisp> root (parser.parse(levels_path + level.name));
 567
 568     const lisp::Lisp* level_lisp = root->get_lisp("supertux-level");
 569     if(!level_lisp)
 570       return;
 571
 572     level_lisp->get("name", level.title);
 573   } catch(std::exception& e) {
 574     msg_warning("Problem when reading leveltitle: " << e.what());
 575     return;
 576   }
 577 }
 578
 579 void WorldMap::calculate_total_stats()
 580 {
 581   total_stats.reset();
 582   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 583     {
 584     if (i->solved)
 585       {
 586       total_stats += i->statistics;
 587       }
 588     }
 589 }
 590
 591 void
 592 WorldMap::on_escape_press()
 593 {
 594   // Show or hide the menu
 595   if(!Menu::current()) {
 596     Menu::set_current(worldmap_menu);
 597     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 598   } else {
 599     Menu::set_current(0);
 600   }
 601 }
 602
 603 void
 604 WorldMap::get_input()
 605 {
 606   main_controller->update();
 607
 608   SDL_Event event;
 609   while (SDL_PollEvent(&event)) {
 610     if (Menu::current())
 611       Menu::current()->event(event);
 612     main_controller->process_event(event);
 613     if(event.type == SDL_QUIT)
 614       throw graceful_shutdown();
 615   }
 616 }
 617
 618 Vector
 619 WorldMap::get_next_tile(Vector pos, Direction direction)
 620 {
 621   switch(direction) {
 622     case D_WEST:
 623       pos.x -= 1;
 624       break;
 625     case D_EAST:
 626       pos.x += 1;
 627       break;
 628     case D_NORTH:
 629       pos.y -= 1;
 630       break;
 631     case D_SOUTH:
 632       pos.y += 1;
 633       break;
 634     case D_NONE:
 635       break;
 636   }
 637   return pos;
 638 }
 639
 640 bool
 641 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 642 {
 643   *new_pos = get_next_tile(old_pos, direction);
 644
 645   if (!(new_pos->x >= 0 && new_pos->x < solids->get_width()
 646         && new_pos->y >= 0 && new_pos->y < solids->get_height()))
 647     { // New position is outsite the tilemap
 648       return false;
 649     }
 650   else
 651     { // Check if the tile allows us to go to new_pos
 652       switch(direction)
 653         {
 654         case D_WEST:
 655           return (at(old_pos)->getData() & Tile::WORLDMAP_WEST
 656               && at(*new_pos)->getData() & Tile::WORLDMAP_EAST);
 657
 658         case D_EAST:
 659           return (at(old_pos)->getData() & Tile::WORLDMAP_EAST
 660               && at(*new_pos)->getData() & Tile::WORLDMAP_WEST);
 661
 662         case D_NORTH:
 663           return (at(old_pos)->getData() & Tile::WORLDMAP_NORTH
 664               && at(*new_pos)->getData() & Tile::WORLDMAP_SOUTH);
 665
 666         case D_SOUTH:
 667           return (at(old_pos)->getData() & Tile::WORLDMAP_SOUTH
 668               && at(*new_pos)->getData() & Tile::WORLDMAP_NORTH);
 669
 670         case D_NONE:
 671           assert(!"path_ok() can't work if direction is NONE");
 672         }
 673       return false;
 674     }
 675 }
 676
 677 void
 678 WorldMap::update(float delta)
 679 {
 680   Menu* menu = Menu::current();
 681   if(menu) {
 682     menu->update();
 683
 684     if(menu == worldmap_menu) {
 685       switch (worldmap_menu->check())
 686       {
 687         case MNID_RETURNWORLDMAP: // Return to game
 688           Menu::set_current(0);
 689           break;
 690         case MNID_QUITWORLDMAP: // Quit Worldmap
 691           quit = true;
 692           break;
 693       }
 694     } else if(menu == options_menu) {
 695       process_options_menu();
 696     }
 697
 698     return;
 699   }
 700
 701   // update GameObjects
 702   for(GameObjects::iterator i = game_objects.begin();
 703       i != game_objects.end(); ++i) {
 704     GameObject* object = *i;
 705     object->update(delta);
 706   }
 707   // remove old GameObjects
 708   for(GameObjects::iterator i = game_objects.begin();
 709       i != game_objects.end(); ) {
 710     GameObject* object = *i;
 711     if(!object->is_valid()) {
 712       delete object;
 713       i = game_objects.erase(i);
 714     } else {
 715       ++i;
 716     }
 717   }
 718
 719   bool enter_level = false;
 720   if(main_controller->pressed(Controller::ACTION)
 721       || main_controller->pressed(Controller::JUMP)
 722       || main_controller->pressed(Controller::MENU_SELECT))
 723     enter_level = true;
 724   if(main_controller->pressed(Controller::PAUSE_MENU))
 725     on_escape_press();
 726
 727   if (enter_level && !tux->is_moving())
 728     {
 729       /* Check special tile action */
 730       SpecialTile* special_tile = at_special_tile();
 731       if(special_tile)
 732         {
 733         if (special_tile->teleport_dest != Vector(-1,-1))
 734           {
 735           // TODO: an animation, camera scrolling or a fading would be a nice touch
 736           sound_manager->play("sounds/warp.wav");
 737           tux->back_direction = D_NONE;
 738           tux->set_tile_pos(special_tile->teleport_dest);
 739           SDL_Delay(1000);
 740           }
 741         }
 742
 743       /* Check level action */
 744       bool level_finished = true;
 745       Level* level = at_level();
 746       if (!level)
 747         {
 748         msg_warning("No level to enter at: "
 749           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y);
 750         return;
 751         }
 752
 753
 754       if (level->pos == tux->get_tile_pos())
 755         {
 756           sound_manager->stop_music();
 757           PlayerStatus old_player_status;
 758           old_player_status = *player_status;
 759
 760           // do a shriking fade to the level
 761           shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),
 762                              (level->pos.y*32 + 16 + offset.y)), 500);
 763           GameSession session(levels_path + level->name,
 764                               ST_GL_LOAD_LEVEL_FILE, &level->statistics);
 765
 766           switch (session.run())
 767             {
 768             case GameSession::ES_LEVEL_FINISHED:
 769               {
 770                 level_finished = true;
 771                 bool old_level_state = level->solved;
 772                 level->solved = true;
 773                 level->sprite->set_action("solved");
 774
 775                 // deal with statistics
 776                 level->statistics.merge(global_stats);
 777                 calculate_total_stats();
 778
 779                 if (old_level_state != level->solved && level->auto_path)
 780                   { // Try to detect the next direction to which we should walk
 781                     // FIXME: Mostly a hack
 782                     Direction dir = D_NONE;
 783
 784                     const Tile* tile = at(tux->get_tile_pos());
 785
 786                     if (tile->getData() & Tile::WORLDMAP_NORTH
 787                         && tux->back_direction != D_NORTH)
 788                       dir = D_NORTH;
 789                     else if (tile->getData() & Tile::WORLDMAP_SOUTH
 790                         && tux->back_direction != D_SOUTH)
 791                       dir = D_SOUTH;
 792                     else if (tile->getData() & Tile::WORLDMAP_EAST
 793                         && tux->back_direction != D_EAST)
 794                       dir = D_EAST;
 795                     else if (tile->getData() & Tile::WORLDMAP_WEST
 796                         && tux->back_direction != D_WEST)
 797                       dir = D_WEST;
 798
 799                     if (dir != D_NONE)
 800                       {
 801                         tux->set_direction(dir);
 802                       }
 803                   }
 804               }
 805
 806               break;
 807             case GameSession::ES_LEVEL_ABORT:
 808               level_finished = false;
 809               /* In case the player's abort the level, keep it using the old
 810                   status. But the minimum lives and no bonus. */
 811               player_status->coins = old_player_status.coins;
 812               player_status->lives = std::min(old_player_status.lives, player_status->lives);
 813               player_status->bonus = NO_BONUS;
 814
 815               break;
 816             case GameSession::ES_GAME_OVER:
 817               {
 818               level_finished = false;
 819               /* draw an end screen */
 820               /* TODO: in the future, this should make a dialog a la SuperMario, asking
 821               if the player wants to restart the world map with no score and from
 822               level 1 */
 823               char str[80];
 824
 825               DrawingContext context;
 826               context.draw_gradient(Color (200,240,220), Color(200,200,220),
 827                   LAYER_BACKGROUND0);
 828
 829               context.draw_text(blue_text, _("GAMEOVER"),
 830                   Vector(SCREEN_WIDTH/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 831
 832               sprintf(str, _("COINS: %d"), player_status->coins);
 833               context.draw_text(gold_text, str,
 834                   Vector(SCREEN_WIDTH/2, SCREEN_WIDTH - 32), CENTER_ALLIGN,
 835                   LAYER_FOREGROUND1);
 836
 837               total_stats.draw_message_info(context, _("Total Statistics"));
 838
 839               context.do_drawing();
 840
 841               wait_for_event(2.0, 6.0);
 842
 843               quit = true;
 844               player_status->reset();
 845               break;
 846               }
 847             case GameSession::ES_NONE:
 848               assert(false);
 849               // Should never be reached
 850               break;
 851             }
 852
 853           sound_manager->play_music(music);
 854           Menu::set_current(0);
 855           if (!savegame_file.empty())
 856             savegame(savegame_file);
 857         }
 858       /* The porpose of the next checking is that if the player lost
 859          the level (in case there is one), don't show anything */
 860       if(level_finished) {
 861         if (level->extro_script != "") {
 862           try {
 863             std::auto_ptr<ScriptInterpreter> interpreter
 864               (new ScriptInterpreter(levels_path));
 865             std::istringstream in(level->extro_script);
 866             interpreter->run_script(in, "level-extro-script");
 867             add_object(interpreter.release());
 868           } catch(std::exception& e) {
 869             msg_warning("Couldn't run level-extro-script:" << e.what());
 870           }
 871         }
 872
 873         if (!level->next_worldmap.empty())
 874           {
 875           // Load given worldmap
 876           loadmap(level->next_worldmap);
 877           }
 878         if (level->quit_worldmap)
 879           quit = true;
 880         }
 881     }
 882   else
 883     {
 884 //      tux->set_direction(input_direction);
 885     }
 886 }
 887
 888 const Tile*
 889 WorldMap::at(Vector p)
 890 {
 891   return solids->get_tile((int) p.x, (int) p.y);
 892 }
 893
 894 WorldMap::Level*
 895 WorldMap::at_level()
 896 {
 897   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 898     {
 899       if (i->pos == tux->get_tile_pos())
 900         return &*i;
 901     }
 902
 903   return 0;
 904 }
 905
 906 WorldMap::SpecialTile*
 907 WorldMap::at_special_tile()
 908 {
 909   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 910     {
 911       if (i->pos == tux->get_tile_pos())
 912         return &*i;
 913     }
 914
 915   return 0;
 916 }
 917
 918 void
 919 WorldMap::draw(DrawingContext& context)
 920 {
 921   for(GameObjects::iterator i = game_objects.begin();
 922       i != game_objects.end(); ++i) {
 923     GameObject* object = *i;
 924     object->draw(context);
 925   }
 926
 927   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 928     {
 929       const Level& level = *i;
 930       level.sprite->draw(context, level.pos*32 + Vector(16, 16), LAYER_TILES+1);
 931     }
 932
 933   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 934     {
 935       if(i->invisible)
 936         continue;
 937
 938       if (i->teleport_dest != Vector(-1, -1))
 939         context.draw_surface(teleporterdot,
 940                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 941
 942       else if (!i->map_message.empty() && !i->passive_message)
 943         context.draw_surface(messagedot,
 944                 Vector(i->pos.x*32, i->pos.y*32), LAYER_TILES+1);
 945     }
 946
 947   draw_status(context);
 948 }
 949
 950 void
 951 WorldMap::draw_status(DrawingContext& context)
 952 {
 953   context.push_transform();
 954   context.set_translation(Vector(0, 0));
 955
 956   player_status->draw(context);
 957
 958   if (!tux->is_moving())
 959     {
 960       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 961         {
 962           if (i->pos == tux->get_tile_pos())
 963             {
 964               if(i->title == "")
 965                 get_level_title(*i);
 966
 967               context.draw_text(white_text, i->title,
 968                   Vector(SCREEN_WIDTH/2,
 969                          SCREEN_HEIGHT - white_text->get_height() - 30),
 970                   CENTER_ALLIGN, LAYER_FOREGROUND1);
 971
 972               i->statistics.draw_worldmap_info(context);
 973               break;
 974             }
 975         }
 976       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 977         {
 978           if (i->pos == tux->get_tile_pos())
 979             {
 980                /* Display an in-map message in the map, if any as been selected */
 981               if(!i->map_message.empty() && !i->passive_message)
 982                 context.draw_text(gold_text, i->map_message,
 983                     Vector(SCREEN_WIDTH/2,
 984                            SCREEN_HEIGHT - white_text->get_height() - 60),
 985                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 986               break;
 987             }
 988         }
 989     }
 990   /* Display a passive message in the map, if needed */
 991   if(passive_message_timer.started())
 992     context.draw_text(gold_text, passive_message,
 993             Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT - white_text->get_height() - 60),
 994             CENTER_ALLIGN, LAYER_FOREGROUND1);
 995
 996   context.pop_transform();
 997 }
 998
 999 void
1000 WorldMap::display()
1001 {
1002   Menu::set_current(0);
1003
1004   quit = false;
1005
1006   sound_manager->play_music(music);
1007
1008   if(!intro_displayed && intro_script != "") {
1009     try {
1010       std::auto_ptr<ScriptInterpreter> interpreter
1011         (new ScriptInterpreter(levels_path));
1012       std::istringstream in(intro_script);
1013       interpreter->run_script(in, "worldmap-intro-script");
1014       add_object(interpreter.release());
1015     } catch(std::exception& e) {
1016       msg_warning("Couldn't execute worldmap-intro-script: "
1017         << e.what());
1018     }
1019
1020     intro_displayed = true;
1021   }
1022
1023   Uint32 lastticks = SDL_GetTicks();
1024   DrawingContext context;
1025   while(!quit) {
1026     Uint32 ticks = SDL_GetTicks();
1027     float elapsed_time = float(ticks - lastticks) / 1000;
1028     game_time += elapsed_time;
1029     lastticks = ticks;
1030
1031     // 40 fps minimum // TODO use same code as in GameSession here
1032     if(elapsed_time > .025)
1033       elapsed_time = .025;
1034
1035     Vector tux_pos = tux->get_pos();
1036     offset.x = tux_pos.x - SCREEN_WIDTH/2;
1037     offset.y = tux_pos.y - SCREEN_HEIGHT/2;
1038
1039     if (offset.x < 0)
1040       offset.x = 0;
1041     if (offset.y < 0)
1042       offset.y = 0;
1043
1044     if (offset.x > solids->get_width()*32 - SCREEN_WIDTH)
1045       offset.x = solids->get_width()*32 - SCREEN_WIDTH;
1046     if (offset.y > solids->get_height()*32 - SCREEN_HEIGHT)
1047       offset.y = solids->get_height()*32 - SCREEN_HEIGHT;
1048
1049     context.push_transform();
1050     context.set_translation(offset);
1051     draw(context);
1052     context.pop_transform();
1053     get_input();
1054     update(elapsed_time);
1055     sound_manager->update();
1056
1057     if(Menu::current()) {
1058       Menu::current()->draw(context);
1059     }
1060
1061     context.do_drawing();
1062   }
1063 }
1064
1065 void
1066 WorldMap::savegame(const std::string& filename)
1067 {
1068   if(filename == "")
1069     return;
1070
1071   std::string dir = FileSystem::dirname(filename);
1072   if(PHYSFS_exists(dir.c_str()) == 0 && PHYSFS_mkdir(dir.c_str()) != 0) {
1073     std::ostringstream msg;
1074     msg << "Couldn't create directory '" << dir << "' for savegame:"
1075         << PHYSFS_getLastError();
1076     throw std::runtime_error(msg.str());
1077   }
1078   if(!PHYSFS_isDirectory(dir.c_str())) {
1079     std::ostringstream msg;
1080     msg << "'" << dir << "' is not a directory.";
1081     throw std::runtime_error(msg.str());
1082   }
1083
1084   lisp::Writer writer(filename);
1085
1086   int nb_solved_levels = 0, total_levels = 0;
1087   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i) {
1088     ++total_levels;
1089     if (i->solved)
1090       ++nb_solved_levels;
1091   }
1092   char nb_solved_levels_str[80], total_levels_str[80];
1093   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1094   sprintf(total_levels_str, "%d", total_levels);
1095
1096   writer.write_comment("Worldmap save file");
1097
1098   writer.start_list("supertux-savegame");
1099
1100   writer.write_int("version", 1);
1101   writer.write_string("title",
1102       std::string(name + " - " + nb_solved_levels_str+"/"+total_levels_str));
1103   writer.write_string("map", map_filename);
1104   writer.write_bool("intro-displayed", intro_displayed);
1105
1106   writer.start_list("tux");
1107
1108   writer.write_float("x", tux->get_tile_pos().x);
1109   writer.write_float("y", tux->get_tile_pos().y);
1110   writer.write_string("back", direction_to_string(tux->back_direction));
1111   player_status->write(writer);
1112   writer.write_string("back", direction_to_string(tux->back_direction));
1113
1114   writer.end_list("tux");
1115
1116   writer.start_list("levels");
1117
1118   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1119     {
1120       if (i->solved)
1121         {
1122         writer.start_list("level");
1123
1124         writer.write_string("name", i->name);
1125         writer.write_bool("solved", true);
1126         i->statistics.write(writer);
1127
1128         writer.end_list("level");
1129         }
1130     }
1131
1132   writer.end_list("levels");
1133
1134   writer.end_list("supertux-savegame");
1135 }
1136
1137 void
1138 WorldMap::loadgame(const std::string& filename)
1139 {
1140   msg_debug("loadgame: " << filename);
1141   savegame_file = filename;
1142
1143   if (PHYSFS_exists(filename.c_str())) // savegame exists
1144   {
1145     try {
1146       lisp::Parser parser;
1147
1148       std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
1149
1150       const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
1151       if(!savegame)
1152         throw std::runtime_error("File is not a supertux-savegame file.");
1153
1154       /* Get the Map filename and then load it before setting level settings */
1155       std::string cur_map_filename = map_filename;
1156       savegame->get("map", map_filename);
1157       load_map();
1158
1159       savegame->get("intro-displayed", intro_displayed);
1160       savegame->get("lives", player_status->lives);
1161       savegame->get("coins", player_status->coins);
1162       savegame->get("max-score-multiplier", player_status->max_score_multiplier);
1163       if (player_status->lives < 0)
1164       player_status->reset();
1165
1166       const lisp::Lisp* tux_lisp = savegame->get_lisp("tux");
1167       if(tux)
1168       {
1169         Vector p;
1170         std::string back_str = "none";
1171
1172         tux_lisp->get("x", p.x);
1173         tux_lisp->get("y", p.y);
1174         tux_lisp->get("back", back_str);
1175           player_status->read(*tux_lisp);
1176
1177         tux->back_direction = string_to_direction(back_str);
1178         tux->set_tile_pos(p);
1179       }
1180
1181       const lisp::Lisp* levels_lisp = savegame->get_lisp("levels");
1182       if(levels_lisp) {
1183         lisp::ListIterator iter(levels_lisp);
1184         while(iter.next()) {
1185           if(iter.item() == "level") {
1186             std::string name;
1187             bool solved = false;
1188
1189             const lisp::Lisp* level = iter.lisp();
1190             level->get("name", name);
1191             level->get("solved", solved);
1192
1193             for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1194             {
1195               if (name == i->name)
1196               {
1197                 i->solved = solved;
1198                 i->sprite->set_action(solved ? "solved" : "default");
1199                 i->statistics.parse(*level);
1200                 break;
1201               }
1202             }
1203           } else {
1204             msg_warning("Unknown token '" << iter.item()
1205                       << "' in levels block in worldmap");
1206           }
1207         }
1208       }
1209     } catch(std::exception& e) {
1210       msg_warning("Problem loading game '" << filename << "': " << e.what());
1211       load_map();
1212       player_status->reset();
1213     }
1214   }
1215   else
1216   {
1217         load_map();
1218     player_status->reset();
1219   }
1220
1221   calculate_total_stats();
1222 }
1223
1224 void
1225 WorldMap::loadmap(const std::string& filename)
1226 {
1227   savegame_file = "";
1228   map_filename = filename;
1229   load_map();
1230 }
1231
1232 } // namespace WorldMapNS