src/worldmap.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux -  A Jump'n Run
   4 //  Copyright (C) 2004 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #include <iostream>
  21 #include <fstream>
  22 #include <vector>
  23 #include <cassert>
  24 #include <unistd.h>
  25
  26 #include "app/globals.h"
  27 #include "video/surface.h"
  28 #include "video/screen.h"
  29 #include "video/drawing_context.h"
  30 #include "utils/lispreader.h"
  31 #include "utils/lispwriter.h"
  32 #include "special/frame_rate.h"
  33 #include "gameloop.h"
  34 #include "app/setup.h"
  35 #include "sector.h"
  36 #include "worldmap.h"
  37 #include "audio/sound_manager.h"
  38 #include "resources.h"
  39 #include "app/gettext.h"
  40 #include "misc.h"
  41
  42 #define map_message_TIME 2800
  43
  44 Menu* worldmap_menu  = 0;
  45
  46 namespace WorldMapNS {
  47
  48 Direction reverse_dir(Direction direction)
  49 {
  50   switch(direction)
  51     {
  52     case D_WEST:
  53       return D_EAST;
  54     case D_EAST:
  55       return D_WEST;
  56     case D_NORTH:
  57       return D_SOUTH;
  58     case D_SOUTH:
  59       return D_NORTH;
  60     case D_NONE:
  61       return D_NONE;
  62     }
  63   return D_NONE;
  64 }
  65
  66 std::string
  67 direction_to_string(Direction direction)
  68 {
  69   switch(direction)
  70     {
  71     case D_WEST:
  72       return "west";
  73     case D_EAST:
  74       return "east";
  75     case D_NORTH:
  76       return "north";
  77     case D_SOUTH:
  78       return "south";
  79     default:
  80       return "none";
  81     }
  82 }
  83
  84 Direction
  85 string_to_direction(const std::string& directory)
  86 {
  87   if (directory == "west")
  88     return D_WEST;
  89   else if (directory == "east")
  90     return D_EAST;
  91   else if (directory == "north")
  92     return D_NORTH;
  93   else if (directory == "south")
  94     return D_SOUTH;
  95   else
  96     return D_NONE;
  97 }
  98
  99 TileManager::TileManager()
 100 {
 101   std::string stwt_filename = datadir +  "/images/worldmap/antarctica.stwt";
 102   lisp_object_t* root_obj = lisp_read_from_file(stwt_filename);
 103
 104   if (!root_obj)
 105     Termination::abort("Couldn't load file", stwt_filename);
 106
 107   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap-tiles") == 0)
 108     {
 109       lisp_object_t* cur = lisp_cdr(root_obj);
 110
 111       while(!lisp_nil_p(cur))
 112         {
 113           lisp_object_t* element = lisp_car(cur);
 114
 115           if (strcmp(lisp_symbol(lisp_car(element)), "tile") == 0)
 116             {
 117               int id = 0;
 118               std::string filename = "<invalid>";
 119
 120               Tile* tile = new Tile;
 121               tile->north = tile->east = tile->south = tile->west = true;
 122               tile->stop  = true;
 123               tile->auto_walk = false;
 124
 125               LispReader reader(lisp_cdr(element));
 126               reader.read_int("id", id);
 127
 128               std::string temp;
 129               reader.read_string("possible-directions", temp);
 130               if(!temp.empty())
 131                 {
 132                 tile->north = tile->east = tile->south = tile->west = false;
 133                 if(temp.find("north") != std::string::npos)
 134                   tile->north = true;
 135                 if(temp.find("south") != std::string::npos)
 136                   tile->south = true;
 137                 if(temp.find("east") != std::string::npos)
 138                   tile->east = true;
 139                 if(temp.find("west") != std::string::npos)
 140                   tile->west = true;
 141                 }
 142
 143               /* For backward compatibility */
 144               reader.read_bool("north", tile->north);
 145               reader.read_bool("south", tile->south);
 146               reader.read_bool("west",  tile->west);
 147               reader.read_bool("east",  tile->east);
 148
 149               reader.read_bool("stop",  tile->stop);
 150               reader.read_bool("auto-walk",  tile->auto_walk);
 151               reader.read_string("image", filename);
 152
 153               reader.read_string("one-way", temp);
 154               tile->one_way = BOTH_WAYS;
 155               if(!temp.empty())
 156                 {
 157                 if(temp == "north-south")
 158                   tile->one_way = NORTH_SOUTH_WAY;
 159                 else if(temp == "south-north")
 160                   tile->one_way = SOUTH_NORTH_WAY;
 161                 else if(temp == "east-west")
 162                   tile->one_way = EAST_WEST_WAY;
 163                 else if(temp == "west-east")
 164                   tile->one_way = WEST_EAST_WAY;
 165                 }
 166
 167               tile->sprite = new Surface(
 168                            datadir +  "/images/worldmap/" + filename,
 169                            true);
 170
 171               if (id >= int(tiles.size()))
 172                 tiles.resize(id+1);
 173
 174               tiles[id] = tile;
 175             }
 176           else
 177             {
 178               puts("Unhandled symbol");
 179             }
 180
 181           cur = lisp_cdr(cur);
 182         }
 183     }
 184   else
 185     {
 186       assert(0);
 187     }
 188
 189   lisp_free(root_obj);
 190 }
 191
 192 TileManager::~TileManager()
 193 {
 194   for(std::vector<Tile*>::iterator i = tiles.begin(); i != tiles.end(); ++i)
 195     delete *i;
 196 }
 197
 198 Tile*
 199 TileManager::get(int i)
 200 {
 201   assert(i >=0 && i < int(tiles.size()));
 202   return tiles[i];
 203 }
 204
 205 //---------------------------------------------------------------------------
 206
 207 Tux::Tux(WorldMap* worldmap_)
 208   : worldmap(worldmap_)
 209 {
 210   largetux_sprite = new Surface(datadir +  "/images/worldmap/tux.png", true);
 211   firetux_sprite = new Surface(datadir +  "/images/worldmap/firetux.png", true);
 212   smalltux_sprite = new Surface(datadir +  "/images/worldmap/smalltux.png", true);
 213
 214   offset = 0;
 215   moving = false;
 216   tile_pos.x = worldmap->get_start_x();
 217   tile_pos.y = worldmap->get_start_y();
 218   direction = D_NONE;
 219   input_direction = D_NONE;
 220 }
 221
 222 Tux::~Tux()
 223 {
 224   delete smalltux_sprite;
 225   delete firetux_sprite;
 226   delete largetux_sprite;
 227 }
 228
 229 void
 230 Tux::draw(DrawingContext& context, const Vector& offset)
 231 {
 232   Vector pos = get_pos();
 233   switch (player_status.bonus)
 234     {
 235     case PlayerStatus::GROWUP_BONUS:
 236       context.draw_surface(largetux_sprite,
 237           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 238       break;
 239     case PlayerStatus::FLOWER_BONUS:
 240       context.draw_surface(firetux_sprite,
 241           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 242       break;
 243     case PlayerStatus::NO_BONUS:
 244       context.draw_surface(smalltux_sprite,
 245           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 246       break;
 247     }
 248 }
 249
 250
 251 Vector
 252 Tux::get_pos()
 253 {
 254   float x = tile_pos.x * 32;
 255   float y = tile_pos.y * 32;
 256
 257   switch(direction)
 258     {
 259     case D_WEST:
 260       x -= offset - 32;
 261       break;
 262     case D_EAST:
 263       x += offset - 32;
 264       break;
 265     case D_NORTH:
 266       y -= offset - 32;
 267       break;
 268     case D_SOUTH:
 269       y += offset - 32;
 270       break;
 271     case D_NONE:
 272       break;
 273     }
 274
 275   return Vector((int)x, (int)y);
 276 }
 277
 278 void
 279 Tux::stop()
 280 {
 281   offset = 0;
 282   direction = D_NONE;
 283   input_direction = D_NONE;
 284   moving = false;
 285 }
 286
 287 void
 288 Tux::set_direction(Direction dir)
 289 {
 290 input_direction = dir;
 291 }
 292
 293 void
 294 Tux::action(float delta)
 295 {
 296   if (!moving)
 297     {
 298       if (input_direction != D_NONE)
 299         {
 300           WorldMap::SpecialTile* special_tile = worldmap->at_special_tile();
 301
 302           // We got a new direction, so lets start walking when possible
 303           Vector next_tile;
 304           if ((!special_tile || special_tile->solved || special_tile->level_name.empty())
 305               && worldmap->path_ok(input_direction, tile_pos, &next_tile))
 306             {
 307               tile_pos = next_tile;
 308               moving = true;
 309               direction = input_direction;
 310               back_direction = reverse_dir(direction);
 311             }
 312           else if (input_direction == back_direction)
 313             {
 314               moving = true;
 315               direction = input_direction;
 316               tile_pos = worldmap->get_next_tile(tile_pos, direction);
 317               back_direction = reverse_dir(direction);
 318             }
 319         }
 320     }
 321   else
 322     {
 323       // Let tux walk a few pixels (20 pixel/sec)
 324       offset += 20.0f * delta;
 325
 326       if (offset > 32)
 327         { // We reached the next tile, so we check what to do now
 328           offset -= 32;
 329
 330           WorldMap::SpecialTile* special_tile = worldmap->at_special_tile();
 331           if(special_tile && special_tile->passive_message)
 332             {  // direction and the apply_action_ are opposites, since they "see"
 333                // directions in a different way
 334             if((direction == D_NORTH && special_tile->apply_action_south) ||
 335                (direction == D_SOUTH && special_tile->apply_action_north) ||
 336                (direction == D_WEST && special_tile->apply_action_east) ||
 337                (direction == D_EAST && special_tile->apply_action_west))
 338               {
 339               worldmap->passive_message = special_tile->map_message;
 340               worldmap->passive_message_timer.start(map_message_TIME);
 341               }
 342             }
 343
 344           if (worldmap->at(tile_pos)->stop || (special_tile &&
 345               !special_tile->passive_message))
 346             {
 347               if(special_tile && !special_tile->map_message.empty() &&
 348                 !special_tile->passive_message)
 349                 worldmap->passive_message_timer.stop();
 350               stop();
 351             }
 352           else
 353             {
 354               if (worldmap->at(tile_pos)->auto_walk || direction != input_direction)
 355                 { // Turn to a new direction
 356                   Tile* tile = worldmap->at(tile_pos);
 357
 358                   if(direction != input_direction &&
 359                      ((tile->north && input_direction == D_NORTH) ||
 360                      (tile->south && input_direction == D_SOUTH) ||
 361                      (tile->east && input_direction == D_EAST) ||
 362                      (tile->west && input_direction == D_WEST)))
 363                     {  // player has changed direction during auto-movement
 364                     direction = input_direction;
 365                     back_direction = reverse_dir(direction);
 366                     }
 367                   else if(direction != input_direction)
 368                     {  // player has changed to impossible tile
 369                       back_direction = reverse_dir(direction);
 370                       stop();
 371                     }
 372                   else
 373                     {
 374                     Direction dir = D_NONE;
 375
 376                     if (tile->north && back_direction != D_NORTH)
 377                       dir = D_NORTH;
 378                     else if (tile->south && back_direction != D_SOUTH)
 379                       dir = D_SOUTH;
 380                     else if (tile->east && back_direction != D_EAST)
 381                       dir = D_EAST;
 382                     else if (tile->west && back_direction != D_WEST)
 383                       dir = D_WEST;
 384
 385                     if (dir != D_NONE)
 386                       {
 387                       direction = dir;
 388                       input_direction = direction;
 389                       back_direction = reverse_dir(direction);
 390                       }
 391                     else
 392                       {
 393                       // Should never be reached if tiledata is good
 394                       stop();
 395                       return;
 396                       }
 397                     }
 398                   }
 399
 400               // Walk automatically to the next tile
 401               if(direction != D_NONE)
 402                 {
 403                 Vector next_tile;
 404                 if (worldmap->path_ok(direction, tile_pos, &next_tile))
 405                   {
 406                   tile_pos = next_tile;
 407                   }
 408                 else
 409                   {
 410                   puts("Tilemap data is buggy");
 411                   stop();
 412                   }
 413                 }
 414             }
 415         }
 416     }
 417 }
 418
 419 //---------------------------------------------------------------------------
 420 Tile::Tile()
 421 {
 422 }
 423
 424 Tile::~Tile()
 425 {
 426   delete sprite;
 427 }
 428
 429 //---------------------------------------------------------------------------
 430
 431 WorldMap::WorldMap()
 432 {
 433   tile_manager = new TileManager();
 434   //tux = new Tux(this);
 435
 436   width  = 20;
 437   height = 15;
 438
 439   start_x = 4;
 440   start_y = 5;
 441
 442   leveldot_green = new Surface(datadir +  "/images/worldmap/leveldot_green.png", true);
 443   leveldot_red = new Surface(datadir +  "/images/worldmap/leveldot_red.png", true);
 444   messagedot   = new Surface(datadir +  "/images/worldmap/messagedot.png", true);
 445   teleporterdot   = new Surface(datadir +  "/images/worldmap/teleporterdot.png", true);
 446
 447   enter_level = false;
 448
 449   name = "<no title>";
 450   music = "SALCON.MOD";
 451 }
 452
 453 WorldMap::~WorldMap()
 454 {
 455   delete tux;
 456   delete tile_manager;
 457
 458   delete leveldot_green;
 459   delete leveldot_red;
 460   delete messagedot;
 461   delete teleporterdot;
 462 }
 463
 464 void
 465 WorldMap::load_map()
 466 {
 467   lisp_object_t* root_obj = lisp_read_from_file(datadir + "/levels/worldmap/" + map_filename);
 468   if (!root_obj)
 469     Termination::abort("Couldn't load file", datadir + "/levels/worldmap/" + map_filename);
 470
 471   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap") == 0)
 472     {
 473       lisp_object_t* cur = lisp_cdr(root_obj);
 474
 475       while(!lisp_nil_p(cur))
 476         {
 477           lisp_object_t* element = lisp_car(cur);
 478
 479           if (strcmp(lisp_symbol(lisp_car(element)), "tilemap") == 0)
 480             {
 481               LispReader reader(lisp_cdr(element));
 482               reader.read_int("width",  width);
 483               reader.read_int("height", height);
 484               reader.read_int_vector("data", tilemap);
 485             }
 486           else if (strcmp(lisp_symbol(lisp_car(element)), "properties") == 0)
 487             {
 488               LispReader reader(lisp_cdr(element));
 489               reader.read_string("name", name, true);
 490               reader.read_string("music", music);
 491               reader.read_int("start_pos_x", start_x);
 492               reader.read_int("start_pos_y", start_y);
 493             }
 494           else if (strcmp(lisp_symbol(lisp_car(element)), "special-tiles") == 0 ||
 495                    strcmp(lisp_symbol(lisp_car(element)), "levels") == 0)
 496             {
 497               lisp_object_t* cur = lisp_cdr(element);
 498
 499               while(!lisp_nil_p(cur))
 500                 {
 501                   lisp_object_t* element = lisp_car(cur);
 502
 503                   if (strcmp(lisp_symbol(lisp_car(element)), "special-tile") == 0)
 504                     {
 505                       SpecialTile special_tile;
 506                       LispReader reader(lisp_cdr(element));
 507                       special_tile.solved = false;
 508
 509                       special_tile.north = true;
 510                       special_tile.east  = true;
 511                       special_tile.south = true;
 512                       special_tile.west  = true;
 513
 514                       reader.read_int("x", special_tile.x);
 515                       reader.read_int("y", special_tile.y);
 516                       reader.read_string("level", special_tile.level_name, false);
 517
 518                       special_tile.vertical_flip = false;
 519                       reader.read_bool("vertical-flip", special_tile.vertical_flip);
 520
 521                       special_tile.map_message.erase();
 522                       reader.read_string("map-message", special_tile.map_message);
 523                       special_tile.passive_message = false;
 524                       reader.read_bool("passive-message", special_tile.passive_message);
 525
 526                       special_tile.teleport_dest_x = special_tile.teleport_dest_y = -1;
 527                       reader.read_int("teleport-to-x", special_tile.teleport_dest_x);
 528                       reader.read_int("teleport-to-y", special_tile.teleport_dest_y);
 529
 530                       special_tile.invisible = false;
 531                       reader.read_bool("invisible-tile", special_tile.invisible);
 532
 533                       special_tile.apply_action_north = special_tile.apply_action_south =
 534                           special_tile.apply_action_east = special_tile.apply_action_west =
 535                           true;
 536                       std::string apply_direction;
 537                       reader.read_string("apply-to-direction", apply_direction);
 538                       if(!apply_direction.empty())
 539                         {
 540                         special_tile.apply_action_north = special_tile.apply_action_south =
 541                             special_tile.apply_action_east = special_tile.apply_action_west =
 542                             false;
 543                         if(apply_direction.find("north") != std::string::npos)
 544                           special_tile.apply_action_north = true;
 545                         if(apply_direction.find("south") != std::string::npos)
 546                           special_tile.apply_action_south = true;
 547                         if(apply_direction.find("east") != std::string::npos)
 548                           special_tile.apply_action_east = true;
 549                         if(apply_direction.find("west") != std::string::npos)
 550                           special_tile.apply_action_west = true;
 551                         }
 552
 553                       reader.read_string("extro-filename", special_tile.extro_filename);
 554                       reader.read_string("next-world", special_tile.next_worldmap);
 555                       special_tile.quit_worldmap = false;
 556                       reader.read_bool("exit-game", special_tile.quit_worldmap);
 557
 558                       special_tile.auto_path = true;
 559                       reader.read_bool("auto-path", special_tile.auto_path);
 560
 561                       special_tiles.push_back(special_tile);
 562                     }
 563
 564                   /* Kept for backward compability */
 565                   else if (strcmp(lisp_symbol(lisp_car(element)), "level") == 0)
 566                     {
 567                       SpecialTile special_tile;
 568                       LispReader reader(lisp_cdr(element));
 569                       special_tile.solved = false;
 570
 571                       special_tile.north = true;
 572                       special_tile.east  = true;
 573                       special_tile.south = true;
 574                       special_tile.west  = true;
 575
 576                       special_tile.invisible = false;
 577
 578                       special_tile.apply_action_north = special_tile.apply_action_south =
 579                           special_tile.apply_action_east = special_tile.apply_action_west =
 580                           true;
 581                       special_tile.vertical_flip = false;
 582                       special_tile.teleport_dest_x = special_tile.teleport_dest_y = -1;
 583
 584                       reader.read_string("extro-filename", special_tile.extro_filename);
 585                       if(!special_tile.extro_filename.empty())
 586                         special_tile.quit_worldmap = true;
 587                       reader.read_string("name", special_tile.level_name, true);
 588                       reader.read_int("x", special_tile.x);
 589                       reader.read_int("y", special_tile.y);
 590
 591
 592                       special_tiles.push_back(special_tile);
 593                     }
 594
 595                   cur = lisp_cdr(cur);
 596                 }
 597             }
 598           else
 599             {
 600
 601             }
 602
 603           cur = lisp_cdr(cur);
 604         }
 605     }
 606
 607     lisp_free(root_obj);
 608     tux = new Tux(this);
 609 }
 610
 611 void WorldMap::get_level_title(SpecialTile& special_tile)
 612 {
 613   /** get special_tile's title */
 614   special_tile.title = "<no title>";
 615
 616   LispReader* reader = LispReader::load(datadir + "/levels/" + special_tile.level_name, "supertux-level");
 617   if(!reader)
 618     {
 619     std::cerr << "Error: Could not open level file. Ignoring...\n";
 620     return;
 621     }
 622
 623   reader->read_string("name", special_tile.title, true);
 624   delete reader;
 625 }
 626
 627 void WorldMap::calculate_total_stats()
 628 {
 629   total_stats.reset();
 630   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 631     {
 632     if (!i->level_name.empty() && i->solved)
 633       {
 634       total_stats += i->statistics;
 635       }
 636     }
 637 }
 638
 639 void
 640 WorldMap::on_escape_press()
 641 {
 642   // Show or hide the menu
 643   if(!Menu::current())
 644     {
 645     Menu::set_current(worldmap_menu);
 646     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 647     }
 648   else
 649     Menu::set_current(0);
 650 }
 651
 652 void
 653 WorldMap::get_input()
 654 {
 655   enter_level = false;
 656
 657   SDL_Event event;
 658   while (SDL_PollEvent(&event))
 659     {
 660       if (Menu::current())
 661         {
 662           Menu::current()->event(event);
 663         }
 664       else
 665         {
 666           switch(event.type)
 667             {
 668             case SDL_QUIT:
 669               Termination::abort("Received window close", "");
 670               break;
 671
 672             case SDL_KEYDOWN:
 673               switch(event.key.keysym.sym)
 674                 {
 675                 case SDLK_ESCAPE:
 676                   on_escape_press();
 677                   break;
 678                 case SDLK_LCTRL:
 679                 case SDLK_RETURN:
 680                   enter_level = true;
 681                   break;
 682
 683                 case SDLK_LEFT:
 684                   tux->set_direction(D_WEST);
 685                   break;
 686                 case SDLK_RIGHT:
 687                   tux->set_direction(D_EAST);
 688                   break;
 689                 case SDLK_UP:
 690                   tux->set_direction(D_NORTH);
 691                   break;
 692                 case SDLK_DOWN:
 693                   tux->set_direction(D_SOUTH);
 694                   break;
 695
 696                 default:
 697                   break;
 698                 }
 699               break;
 700
 701             case SDL_JOYHATMOTION:
 702               if(event.jhat.value & SDL_HAT_UP) {
 703                 tux->set_direction(D_NORTH);
 704               } else if(event.jhat.value & SDL_HAT_DOWN) {
 705                 tux->set_direction(D_SOUTH);
 706               } else if(event.jhat.value & SDL_HAT_LEFT) {
 707                 tux->set_direction(D_WEST);
 708               } else if(event.jhat.value & SDL_HAT_RIGHT) {
 709                 tux->set_direction(D_EAST);
 710               }
 711               break;
 712
 713             case SDL_JOYAXISMOTION:
 714               if (event.jaxis.axis == joystick_keymap.x_axis)
 715                 {
 716                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 717                     tux->set_direction(D_WEST);
 718                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 719                     tux->set_direction(D_EAST);
 720                 }
 721               else if (event.jaxis.axis == joystick_keymap.y_axis)
 722                 {
 723                   if (event.jaxis.value > joystick_keymap.dead_zone)
 724                     tux->set_direction(D_SOUTH);
 725                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 726                     tux->set_direction(D_NORTH);
 727                 }
 728               break;
 729
 730             case SDL_JOYBUTTONDOWN:
 731               if (event.jbutton.button == joystick_keymap.b_button)
 732                 enter_level = true;
 733               else if (event.jbutton.button == joystick_keymap.start_button)
 734                 on_escape_press();
 735               break;
 736
 737             default:
 738               break;
 739             }
 740         }
 741     }
 742 }
 743
 744 Vector
 745 WorldMap::get_next_tile(Vector pos, Direction direction)
 746 {
 747   switch(direction)
 748     {
 749     case D_WEST:
 750       pos.x -= 1;
 751       break;
 752     case D_EAST:
 753       pos.x += 1;
 754       break;
 755     case D_NORTH:
 756       pos.y -= 1;
 757       break;
 758     case D_SOUTH:
 759       pos.y += 1;
 760       break;
 761     case D_NONE:
 762       break;
 763     }
 764   return pos;
 765 }
 766
 767 bool
 768 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 769 {
 770   *new_pos = get_next_tile(old_pos, direction);
 771
 772   if (!(new_pos->x >= 0 && new_pos->x < width
 773         && new_pos->y >= 0 && new_pos->y < height))
 774     { // New position is outsite the tilemap
 775       return false;
 776     }
 777   else if(at(*new_pos)->one_way != BOTH_WAYS)
 778     {
 779 std::cerr << "one way only\n";
 780       if((at(*new_pos)->one_way == NORTH_SOUTH_WAY && direction != D_SOUTH) ||
 781          (at(*new_pos)->one_way == SOUTH_NORTH_WAY && direction != D_NORTH) ||
 782          (at(*new_pos)->one_way == EAST_WEST_WAY && direction != D_WEST) ||
 783          (at(*new_pos)->one_way == WEST_EAST_WAY && direction != D_EAST))
 784         return false;
 785       return true;
 786     }
 787   else
 788     { // Check if we the tile allows us to go to new_pos
 789       switch(direction)
 790         {
 791         case D_WEST:
 792           return (at(old_pos)->west && at(*new_pos)->east);
 793
 794         case D_EAST:
 795           return (at(old_pos)->east && at(*new_pos)->west);
 796
 797         case D_NORTH:
 798           return (at(old_pos)->north && at(*new_pos)->south);
 799
 800         case D_SOUTH:
 801           return (at(old_pos)->south && at(*new_pos)->north);
 802
 803         case D_NONE:
 804           assert(!"path_ok() can't work if direction is NONE");
 805         }
 806       return false;
 807     }
 808 }
 809
 810 void
 811 WorldMap::update(float delta)
 812 {
 813   if (enter_level && !tux->is_moving())
 814     {
 815       bool level_finished = true;
 816       SpecialTile* special_tile = at_special_tile();
 817       if (!special_tile)
 818         {
 819         std::cout << "Nothing to enter at: "
 820           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y << std::endl;
 821         return;
 822         }
 823
 824
 825       if(!special_tile->level_name.empty())
 826         {
 827           if (special_tile->x == tux->get_tile_pos().x &&
 828               special_tile->y == tux->get_tile_pos().y)
 829             {
 830               PlayerStatus old_player_status = player_status;
 831
 832               std::cout << "Enter the current level: " << special_tile->level_name << std::endl;
 833               // do a shriking fade to the special_tile
 834               shrink_fade(Vector((special_tile->x*32 + 16 + offset.x),(special_tile->y*32 + 16
 835                       + offset.y)), 500);
 836               GameSession session(datadir +  "/levels/" + special_tile->level_name,
 837                                   ST_GL_LOAD_LEVEL_FILE, special_tile->vertical_flip);
 838
 839               switch (session.run())
 840                 {
 841                 case GameSession::ES_LEVEL_FINISHED:
 842                   {
 843                     level_finished = true;
 844                     bool old_level_state = special_tile->solved;
 845                     special_tile->solved = true;
 846
 847                     // deal with statistics
 848                     special_tile->statistics.merge(global_stats);
 849                     calculate_total_stats();
 850
 851                     if (session.get_current_sector()->player->got_power !=
 852                           session.get_current_sector()->player->NONE_POWER)
 853                       player_status.bonus = PlayerStatus::FLOWER_BONUS;
 854                     else if (session.get_current_sector()->player->size == BIG)
 855                       player_status.bonus = PlayerStatus::GROWUP_BONUS;
 856                     else
 857                       player_status.bonus = PlayerStatus::NO_BONUS;
 858
 859                     if (old_level_state != special_tile->solved && special_tile->auto_path)
 860                       { // Try to detect the next direction to which we should walk
 861                         // FIXME: Mostly a hack
 862                         Direction dir = D_NONE;
 863
 864                         Tile* tile = at(tux->get_tile_pos());
 865
 866                         if (tile->north && tux->back_direction != D_NORTH)
 867                           dir = D_NORTH;
 868                         else if (tile->south && tux->back_direction != D_SOUTH)
 869                           dir = D_SOUTH;
 870                         else if (tile->east && tux->back_direction != D_EAST)
 871                           dir = D_EAST;
 872                         else if (tile->west && tux->back_direction != D_WEST)
 873                           dir = D_WEST;
 874
 875                         if (dir != D_NONE)
 876                           {
 877                             tux->set_direction(dir);
 878                             //tux->update(delta);
 879                           }
 880
 881                         std::cout << "Walk to dir: " << dir << std::endl;
 882                       }
 883                   }
 884
 885                   break;
 886                 case GameSession::ES_LEVEL_ABORT:
 887                   level_finished = false;
 888                   /* In case the player's abort the special_tile, keep it using the old
 889                       status. But the minimum lives and no bonus. */
 890                   player_status.distros = old_player_status.distros;
 891                   player_status.lives = std::min(old_player_status.lives, player_status.lives);
 892                   player_status.bonus = player_status.NO_BONUS;
 893
 894                   break;
 895                 case GameSession::ES_GAME_OVER:
 896                   {
 897                   level_finished = false;
 898                   /* draw an end screen */
 899                   /* TODO: in the future, this should make a dialog a la SuperMario, asking
 900                   if the player wants to restart the world map with no score and from
 901                   level 1 */
 902                   char str[80];
 903
 904                   DrawingContext context;
 905                   context.draw_gradient(Color (200,240,220), Color(200,200,220),
 906                       LAYER_BACKGROUND0);
 907
 908                   context.draw_text_center(blue_text, _("GAMEOVER"),
 909                       Vector(0, 200), LAYER_FOREGROUND1);
 910
 911                   sprintf(str, _("SCORE: %d"), total_stats.get_points(SCORE_STAT));
 912                   context.draw_text_center(gold_text, str,
 913                       Vector(0, 230), LAYER_FOREGROUND1);
 914
 915                   sprintf(str, _("COINS: %d"), player_status.distros);
 916                   context.draw_text_center(gold_text, str,
 917                       Vector(0, screen->w - 32), LAYER_FOREGROUND1);
 918
 919                   context.do_drawing();
 920
 921                   SDL_Event event;
 922                   wait_for_event(event,2000,5000,true);
 923
 924                   quit = true;
 925                   player_status.reset();
 926                   break;
 927                   }
 928                 case GameSession::ES_NONE:
 929                   assert(false);
 930                   // Should never be reached
 931                   break;
 932                 }
 933
 934               SoundManager::get()->play_music(song);
 935               Menu::set_current(0);
 936               if (!savegame_file.empty())
 937                 savegame(savegame_file);
 938             }
 939         }
 940       /* The porpose of the next checking is that if the player lost
 941          the special_tile (in case there is one), don't show anything */
 942       if(level_finished)
 943         {
 944         if (!special_tile->extro_filename.empty())
 945           {
 946           // Display a text file
 947           display_text_file(special_tile->extro_filename, SCROLL_SPEED_MESSAGE, white_big_text , white_text, white_small_text, blue_text );
 948           }
 949         if (special_tile->teleport_dest_x != -1 && special_tile->teleport_dest_y != -1)
 950           {
 951           // TODO: an animation, camera scrolling or a fading would be a nice touch
 952           SoundManager::get()->play_sound(IDToSound(SND_WARP));
 953           tux->back_direction = D_NONE;
 954           tux->set_tile_pos(Vector(special_tile->teleport_dest_x, special_tile->teleport_dest_y));
 955           SDL_Delay(1000);
 956           }
 957         if (!special_tile->next_worldmap.empty())
 958           {
 959           // Load given worldmap
 960           loadmap(special_tile->next_worldmap);
 961           }
 962         if (special_tile->quit_worldmap)
 963           quit = true;
 964         }
 965     }
 966   else
 967     {
 968       tux->action(delta);
 969 //      tux->set_direction(input_direction);
 970     }
 971
 972   Menu* menu = Menu::current();
 973   if(menu)
 974     {
 975       menu->action();
 976
 977       if(menu == worldmap_menu)
 978         {
 979           switch (worldmap_menu->check())
 980             {
 981             case MNID_RETURNWORLDMAP: // Return to game
 982               break;
 983             case MNID_QUITWORLDMAP: // Quit Worldmap
 984               quit = true;
 985               break;
 986             }
 987         }
 988       else if(menu == options_menu)
 989         {
 990           process_options_menu();
 991         }
 992     }
 993 }
 994
 995 Tile*
 996 WorldMap::at(Vector p)
 997 {
 998   assert(p.x >= 0
 999          && p.x < width
1000          && p.y >= 0
1001          && p.y < height);
1002
1003   int x = int(p.x);
1004   int y = int(p.y);
1005   return tile_manager->get(tilemap[width * y + x]);
1006 }
1007
1008 WorldMap::SpecialTile*
1009 WorldMap::at_special_tile()
1010 {
1011   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1012     {
1013       if (i->x == tux->get_tile_pos().x &&
1014           i->y == tux->get_tile_pos().y)
1015         return &*i;
1016     }
1017
1018   return 0;
1019 }
1020
1021
1022 void
1023 WorldMap::draw(DrawingContext& context, const Vector& offset)
1024 {
1025   for(int y = 0; y < height; ++y)
1026     for(int x = 0; x < width; ++x)
1027       {
1028         Tile* tile = at(Vector(x, y));
1029         context.draw_surface(tile->sprite,
1030             Vector(x*32 + offset.x, y*32 + offset.y), LAYER_TILES);
1031       }
1032
1033   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1034     {
1035       if(i->invisible)
1036         continue;
1037       if(i->level_name.empty())
1038         {
1039         if (i->teleport_dest_x != -1 && i->teleport_dest_y != -1)
1040           context.draw_surface(teleporterdot,
1041               Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1042
1043         else if (!i->map_message.empty() && !i->passive_message)
1044           context.draw_surface(messagedot,
1045               Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1046
1047         continue;
1048         }
1049
1050       if (i->solved)
1051         context.draw_surface(leveldot_green,
1052             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1053       else
1054         context.draw_surface(leveldot_red,
1055             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1056     }
1057
1058   tux->draw(context, offset);
1059   draw_status(context);
1060 }
1061
1062 void
1063 WorldMap::draw_status(DrawingContext& context)
1064 {
1065   char str[80];
1066   sprintf(str, " %d", total_stats.get_points(SCORE_STAT));
1067
1068   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LAYER_FOREGROUND1);
1069   context.draw_text(gold_text, str, Vector(96, 0), LAYER_FOREGROUND1);
1070
1071   sprintf(str, "%d", player_status.distros);
1072   context.draw_text(white_text, _("COINS"), Vector(screen->w/2 - 16*5, 0),
1073       LAYER_FOREGROUND1);
1074   context.draw_text(gold_text, str, Vector(screen->w/2 + (16*5)/2, 0),
1075         LAYER_FOREGROUND1);
1076
1077   if (player_status.lives >= 5)
1078     {
1079       sprintf(str, "%dx", player_status.lives);
1080       context.draw_text(gold_text, str,
1081           Vector(screen->w - gold_text->get_text_width(str) - tux_life->w, 0),
1082           LAYER_FOREGROUND1);
1083       context.draw_surface(tux_life, Vector(screen->w -
1084             gold_text->get_text_width("9"), 0), LAYER_FOREGROUND1);
1085     }
1086   else
1087     {
1088       for(int i= 0; i < player_status.lives; ++i)
1089         context.draw_surface(tux_life,
1090             Vector(screen->w - tux_life->w*4 + (tux_life->w*i), 0),
1091             LAYER_FOREGROUND1);
1092     }
1093   context.draw_text(white_text, _("LIVES"),
1094       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
1095       LAYER_FOREGROUND1);
1096
1097   if (!tux->is_moving())
1098     {
1099       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1100         {
1101           if (i->x == tux->get_tile_pos().x &&
1102               i->y == tux->get_tile_pos().y)
1103             {
1104               if(!i->level_name.empty())
1105                 {
1106                 if(i->title == "")
1107                   get_level_title(*i);
1108
1109                 context.draw_text_center(white_text, i->title,
1110                     Vector(0, screen->h - white_text->get_height() - 30),
1111                     LAYER_FOREGROUND1);
1112                 }
1113
1114               /* Display an in-map message in the map, if any as been selected */
1115               if(!i->map_message.empty() && !i->passive_message)
1116                 context.draw_text_center(gold_text, i->map_message,
1117                     Vector(0, screen->h - white_text->get_height() - 60),
1118                     LAYER_FOREGROUND1);
1119               break;
1120             }
1121         }
1122     }
1123   /* Display a passive message in the map, if needed */
1124   if(passive_message_timer.check())
1125     context.draw_text_center(gold_text, passive_message,
1126             Vector(0, screen->h - white_text->get_height() - 60),
1127             LAYER_FOREGROUND1);
1128 }
1129
1130 void
1131 WorldMap::display()
1132 {
1133   Menu::set_current(0);
1134
1135   quit = false;
1136
1137   song = SoundManager::get()->load_music(datadir +  "/music/" + music);
1138   SoundManager::get()->play_music(song);
1139
1140   FrameRate frame_rate(10);
1141   frame_rate.set_frame_limit(false);
1142
1143   frame_rate.start();
1144
1145   DrawingContext context;
1146   while(!quit)
1147     {
1148       float delta = frame_rate.get();
1149
1150       delta *= 1.3f;
1151
1152       if (delta > 10.0f)
1153         delta = .3f;
1154
1155       frame_rate.update();
1156
1157       Vector tux_pos = tux->get_pos();
1158       if (1)
1159         {
1160           offset.x = -tux_pos.x + screen->w/2;
1161           offset.y = -tux_pos.y + screen->h/2;
1162
1163           if (offset.x > 0) offset.x = 0;
1164           if (offset.y > 0) offset.y = 0;
1165
1166           if (offset.x < screen->w - width*32) offset.x = screen->w - width*32;
1167           if (offset.y < screen->h - height*32) offset.y = screen->h - height*32;
1168         }
1169
1170       draw(context, offset);
1171       get_input();
1172       update(delta);
1173
1174       if(Menu::current())
1175         {
1176           Menu::current()->draw(context);
1177           mouse_cursor->draw(context);
1178         }
1179
1180       context.do_drawing();
1181
1182       SDL_Delay(20);
1183     }
1184 }
1185
1186 void
1187 WorldMap::savegame(const std::string& filename)
1188 {
1189   if(filename == "")
1190     return;
1191
1192   std::cout << "savegame: " << filename << std::endl;
1193
1194    std::ofstream file(filename.c_str(), std::ios::out);
1195    LispWriter* writer = new LispWriter(file);
1196
1197   int nb_solved_levels = 0, total_levels = 0;
1198   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1199     {
1200       if(!i->level_name.empty())
1201         ++total_levels;
1202       if (i->solved)
1203         ++nb_solved_levels;
1204     }
1205   char nb_solved_levels_str[80], total_levels_str[80];
1206   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1207   sprintf(total_levels_str, "%d", total_levels);
1208
1209   writer->write_comment("Worldmap save file");
1210
1211   writer->start_list("supertux-savegame");
1212
1213   writer->write_int("version", 1);
1214   writer->write_string("title", std::string(name + " - " + nb_solved_levels_str + "/" + total_levels_str));
1215   writer->write_string("map", map_filename);
1216   writer->write_int("lives", player_status.lives);
1217   writer->write_int("distros", player_status.lives);
1218
1219   writer->start_list("tux");
1220
1221   writer->write_float("x", tux->get_tile_pos().x);
1222   writer->write_float("y", tux->get_tile_pos().y);
1223   writer->write_string("back", direction_to_string(tux->back_direction));
1224   writer->write_string("bonus", bonus_to_string(player_status.bonus));
1225
1226   writer->end_list("tux");
1227
1228   writer->start_list("levels");
1229
1230   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1231     {
1232       if (i->solved && !i->level_name.empty())
1233         {
1234         writer->start_list("level");
1235
1236         writer->write_string("name", i->level_name);
1237         writer->write_bool("solved", true);
1238         i->statistics.write(*writer);
1239
1240         writer->end_list("level");
1241         }
1242     }
1243
1244   writer->end_list("levels");
1245
1246   writer->end_list("supertux-savegame");
1247 }
1248
1249 void
1250 WorldMap::loadgame(const std::string& filename)
1251 {
1252   std::cout << "loadgame: " << filename << std::endl;
1253   savegame_file = filename;
1254   map_filename = "icyisland.stwm";
1255
1256   if (access(filename.c_str(), F_OK) != 0)
1257     {
1258     load_map();
1259     return;
1260     }
1261
1262   lisp_object_t* savegame = lisp_read_from_file(filename);
1263   if (!savegame)
1264     {
1265       std::cout << "WorldMap:loadgame: File not found: " << filename << std::endl;
1266       load_map();
1267       return;
1268     }
1269
1270   lisp_object_t* cur = savegame;
1271
1272   if (strcmp(lisp_symbol(lisp_car(cur)), "supertux-savegame") != 0)
1273     {
1274     load_map();
1275     return;
1276     }
1277
1278   cur = lisp_cdr(cur);
1279   LispReader reader(cur);
1280
1281   /* Get the Map filename and then load it before setting special_tile settings */
1282   reader.read_string("map", map_filename);
1283   load_map();
1284
1285   reader.read_int("lives", player_status.lives);
1286   reader.read_int("distros", player_status.distros);
1287
1288   if (player_status.lives < 0)
1289     player_status.lives = START_LIVES;
1290
1291   lisp_object_t* tux_cur = 0;
1292   if (reader.read_lisp("tux", tux_cur))
1293     {
1294       Vector p;
1295       std::string back_str = "none";
1296       std::string bonus_str = "none";
1297
1298       LispReader tux_reader(tux_cur);
1299       tux_reader.read_float("x", p.x);
1300       tux_reader.read_float("y", p.y);
1301       tux_reader.read_string("back", back_str);
1302       tux_reader.read_string("bonus", bonus_str);
1303
1304       player_status.bonus = string_to_bonus(bonus_str);
1305       tux->back_direction = string_to_direction(back_str);
1306       tux->set_tile_pos(p);
1307     }
1308
1309   lisp_object_t* level_cur = 0;
1310   if (reader.read_lisp("levels", level_cur))
1311     {
1312       while(level_cur)
1313         {
1314           lisp_object_t* sym  = lisp_car(lisp_car(level_cur));
1315           lisp_object_t* data = lisp_cdr(lisp_car(level_cur));
1316
1317           if (strcmp(lisp_symbol(sym), "level") == 0)
1318             {
1319               std::string name;
1320               bool solved = false;
1321
1322               LispReader level_reader(data);
1323               level_reader.read_string("name", name);
1324               level_reader.read_bool("solved", solved);
1325
1326               for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1327                 {
1328                   if (name == i->level_name)
1329                     {
1330                     i->solved = solved;
1331                     i->statistics.parse(level_reader);
1332                     break;
1333                     }
1334                 }
1335             }
1336
1337           level_cur = lisp_cdr(level_cur);
1338         }
1339     }
1340
1341   lisp_free(savegame);
1342
1343   calculate_total_stats();
1344 }
1345
1346 void
1347 WorldMap::loadmap(const std::string& filename)
1348 {
1349   savegame_file = "";
1350   map_filename = filename;
1351   load_map();
1352 }
1353
1354 } // namespace WorldMapNS
1355
1356 /* Local Variables: */
1357 /* mode:c++ */
1358 /* End: */
1359