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   total_stats.reset();
 453 }
 454
 455 WorldMap::~WorldMap()
 456 {
 457   delete tux;
 458   delete tile_manager;
 459
 460   delete leveldot_green;
 461   delete leveldot_red;
 462   delete messagedot;
 463   delete teleporterdot;
 464 }
 465
 466 void
 467 WorldMap::load_map()
 468 {
 469   lisp_object_t* root_obj = lisp_read_from_file(datadir + "/levels/worldmap/" + map_filename);
 470   if (!root_obj)
 471     Termination::abort("Couldn't load file", datadir + "/levels/worldmap/" + map_filename);
 472
 473   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap") == 0)
 474     {
 475       lisp_object_t* cur = lisp_cdr(root_obj);
 476
 477       while(!lisp_nil_p(cur))
 478         {
 479           lisp_object_t* element = lisp_car(cur);
 480
 481           if (strcmp(lisp_symbol(lisp_car(element)), "tilemap") == 0)
 482             {
 483               LispReader reader(lisp_cdr(element));
 484               reader.read_int("width",  width);
 485               reader.read_int("height", height);
 486               reader.read_int_vector("data", tilemap);
 487             }
 488           else if (strcmp(lisp_symbol(lisp_car(element)), "properties") == 0)
 489             {
 490               LispReader reader(lisp_cdr(element));
 491               reader.read_string("name", name, true);
 492               reader.read_string("music", music);
 493               reader.read_int("start_pos_x", start_x);
 494               reader.read_int("start_pos_y", start_y);
 495             }
 496           else if (strcmp(lisp_symbol(lisp_car(element)), "special-tiles") == 0 ||
 497                    strcmp(lisp_symbol(lisp_car(element)), "levels") == 0)
 498             {
 499               lisp_object_t* cur = lisp_cdr(element);
 500
 501               while(!lisp_nil_p(cur))
 502                 {
 503                   lisp_object_t* element = lisp_car(cur);
 504
 505                   if (strcmp(lisp_symbol(lisp_car(element)), "special-tile") == 0)
 506                     {
 507                       SpecialTile special_tile;
 508                       LispReader reader(lisp_cdr(element));
 509                       special_tile.solved = false;
 510
 511                       special_tile.north = true;
 512                       special_tile.east  = true;
 513                       special_tile.south = true;
 514                       special_tile.west  = true;
 515
 516                       reader.read_int("x", special_tile.x);
 517                       reader.read_int("y", special_tile.y);
 518                       reader.read_string("level", special_tile.level_name, false);
 519
 520                       special_tile.vertical_flip = false;
 521                       reader.read_bool("vertical-flip", special_tile.vertical_flip);
 522
 523                       special_tile.map_message.erase();
 524                       reader.read_string("map-message", special_tile.map_message);
 525                       special_tile.passive_message = false;
 526                       reader.read_bool("passive-message", special_tile.passive_message);
 527
 528                       special_tile.teleport_dest_x = special_tile.teleport_dest_y = -1;
 529                       reader.read_int("teleport-to-x", special_tile.teleport_dest_x);
 530                       reader.read_int("teleport-to-y", special_tile.teleport_dest_y);
 531
 532                       special_tile.invisible = false;
 533                       reader.read_bool("invisible-tile", special_tile.invisible);
 534
 535                       special_tile.apply_action_north = special_tile.apply_action_south =
 536                           special_tile.apply_action_east = special_tile.apply_action_west =
 537                           true;
 538                       std::string apply_direction;
 539                       reader.read_string("apply-to-direction", apply_direction);
 540                       if(!apply_direction.empty())
 541                         {
 542                         special_tile.apply_action_north = special_tile.apply_action_south =
 543                             special_tile.apply_action_east = special_tile.apply_action_west =
 544                             false;
 545                         if(apply_direction.find("north") != std::string::npos)
 546                           special_tile.apply_action_north = true;
 547                         if(apply_direction.find("south") != std::string::npos)
 548                           special_tile.apply_action_south = true;
 549                         if(apply_direction.find("east") != std::string::npos)
 550                           special_tile.apply_action_east = true;
 551                         if(apply_direction.find("west") != std::string::npos)
 552                           special_tile.apply_action_west = true;
 553                         }
 554
 555                       reader.read_string("extro-filename", special_tile.extro_filename);
 556                       reader.read_string("next-world", special_tile.next_worldmap);
 557                       special_tile.quit_worldmap = false;
 558                       reader.read_bool("exit-game", special_tile.quit_worldmap);
 559
 560                       special_tile.auto_path = true;
 561                       reader.read_bool("auto-path", special_tile.auto_path);
 562
 563                       special_tiles.push_back(special_tile);
 564                     }
 565
 566                   /* Kept for backward compability */
 567                   else if (strcmp(lisp_symbol(lisp_car(element)), "level") == 0)
 568                     {
 569                       SpecialTile special_tile;
 570                       LispReader reader(lisp_cdr(element));
 571                       special_tile.solved = false;
 572
 573                       special_tile.north = true;
 574                       special_tile.east  = true;
 575                       special_tile.south = true;
 576                       special_tile.west  = true;
 577
 578                       special_tile.invisible = false;
 579
 580                       special_tile.apply_action_north = special_tile.apply_action_south =
 581                           special_tile.apply_action_east = special_tile.apply_action_west =
 582                           true;
 583                       special_tile.vertical_flip = false;
 584                       special_tile.teleport_dest_x = special_tile.teleport_dest_y = -1;
 585
 586                       reader.read_string("extro-filename", special_tile.extro_filename);
 587                       if(!special_tile.extro_filename.empty())
 588                         special_tile.quit_worldmap = true;
 589                       reader.read_string("name", special_tile.level_name, true);
 590                       reader.read_int("x", special_tile.x);
 591                       reader.read_int("y", special_tile.y);
 592
 593
 594                       special_tiles.push_back(special_tile);
 595                     }
 596
 597                   cur = lisp_cdr(cur);
 598                 }
 599             }
 600           else
 601             {
 602
 603             }
 604
 605           cur = lisp_cdr(cur);
 606         }
 607     }
 608
 609     lisp_free(root_obj);
 610     tux = new Tux(this);
 611 }
 612
 613 void WorldMap::get_level_title(SpecialTile& special_tile)
 614 {
 615   /** get special_tile's title */
 616   special_tile.title = "<no title>";
 617
 618   LispReader* reader = LispReader::load(datadir + "/levels/" + special_tile.level_name, "supertux-level");
 619   if(!reader)
 620     {
 621     std::cerr << "Error: Could not open level file. Ignoring...\n";
 622     return;
 623     }
 624
 625   reader->read_string("name", special_tile.title, true);
 626   delete reader;
 627 }
 628
 629 void WorldMap::calculate_total_stats()
 630 {
 631   total_stats.reset();
 632   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
 633     {
 634     if (!i->level_name.empty() && i->solved)
 635       {
 636       total_stats += i->statistics;
 637       }
 638     }
 639 }
 640
 641 void
 642 WorldMap::on_escape_press()
 643 {
 644   // Show or hide the menu
 645   if(!Menu::current())
 646     {
 647     Menu::set_current(worldmap_menu);
 648     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 649     }
 650   else
 651     Menu::set_current(0);
 652 }
 653
 654 void
 655 WorldMap::get_input()
 656 {
 657   enter_level = false;
 658
 659   SDL_Event event;
 660   while (SDL_PollEvent(&event))
 661     {
 662       if (Menu::current())
 663         {
 664           Menu::current()->event(event);
 665         }
 666       else
 667         {
 668           switch(event.type)
 669             {
 670             case SDL_QUIT:
 671               Termination::abort("Received window close", "");
 672               break;
 673
 674             case SDL_KEYDOWN:
 675               switch(event.key.keysym.sym)
 676                 {
 677                 case SDLK_ESCAPE:
 678                   on_escape_press();
 679                   break;
 680                 case SDLK_LCTRL:
 681                 case SDLK_RETURN:
 682                   enter_level = true;
 683                   break;
 684
 685                 case SDLK_LEFT:
 686                   tux->set_direction(D_WEST);
 687                   break;
 688                 case SDLK_RIGHT:
 689                   tux->set_direction(D_EAST);
 690                   break;
 691                 case SDLK_UP:
 692                   tux->set_direction(D_NORTH);
 693                   break;
 694                 case SDLK_DOWN:
 695                   tux->set_direction(D_SOUTH);
 696                   break;
 697
 698                 default:
 699                   break;
 700                 }
 701               break;
 702
 703             case SDL_JOYHATMOTION:
 704               if(event.jhat.value & SDL_HAT_UP) {
 705                 tux->set_direction(D_NORTH);
 706               } else if(event.jhat.value & SDL_HAT_DOWN) {
 707                 tux->set_direction(D_SOUTH);
 708               } else if(event.jhat.value & SDL_HAT_LEFT) {
 709                 tux->set_direction(D_WEST);
 710               } else if(event.jhat.value & SDL_HAT_RIGHT) {
 711                 tux->set_direction(D_EAST);
 712               }
 713               break;
 714
 715             case SDL_JOYAXISMOTION:
 716               if (event.jaxis.axis == joystick_keymap.x_axis)
 717                 {
 718                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 719                     tux->set_direction(D_WEST);
 720                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 721                     tux->set_direction(D_EAST);
 722                 }
 723               else if (event.jaxis.axis == joystick_keymap.y_axis)
 724                 {
 725                   if (event.jaxis.value > joystick_keymap.dead_zone)
 726                     tux->set_direction(D_SOUTH);
 727                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 728                     tux->set_direction(D_NORTH);
 729                 }
 730               break;
 731
 732             case SDL_JOYBUTTONDOWN:
 733               if (event.jbutton.button == joystick_keymap.b_button)
 734                 enter_level = true;
 735               else if (event.jbutton.button == joystick_keymap.start_button)
 736                 on_escape_press();
 737               break;
 738
 739             default:
 740               break;
 741             }
 742         }
 743     }
 744 }
 745
 746 Vector
 747 WorldMap::get_next_tile(Vector pos, Direction direction)
 748 {
 749   switch(direction)
 750     {
 751     case D_WEST:
 752       pos.x -= 1;
 753       break;
 754     case D_EAST:
 755       pos.x += 1;
 756       break;
 757     case D_NORTH:
 758       pos.y -= 1;
 759       break;
 760     case D_SOUTH:
 761       pos.y += 1;
 762       break;
 763     case D_NONE:
 764       break;
 765     }
 766   return pos;
 767 }
 768
 769 bool
 770 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 771 {
 772   *new_pos = get_next_tile(old_pos, direction);
 773
 774   if (!(new_pos->x >= 0 && new_pos->x < width
 775         && new_pos->y >= 0 && new_pos->y < height))
 776     { // New position is outsite the tilemap
 777       return false;
 778     }
 779   else if(at(*new_pos)->one_way != BOTH_WAYS)
 780     {
 781 std::cerr << "one way only\n";
 782       if((at(*new_pos)->one_way == NORTH_SOUTH_WAY && direction != D_SOUTH) ||
 783          (at(*new_pos)->one_way == SOUTH_NORTH_WAY && direction != D_NORTH) ||
 784          (at(*new_pos)->one_way == EAST_WEST_WAY && direction != D_WEST) ||
 785          (at(*new_pos)->one_way == WEST_EAST_WAY && direction != D_EAST))
 786         return false;
 787       return true;
 788     }
 789   else
 790     { // Check if we the tile allows us to go to new_pos
 791       switch(direction)
 792         {
 793         case D_WEST:
 794           return (at(old_pos)->west && at(*new_pos)->east);
 795
 796         case D_EAST:
 797           return (at(old_pos)->east && at(*new_pos)->west);
 798
 799         case D_NORTH:
 800           return (at(old_pos)->north && at(*new_pos)->south);
 801
 802         case D_SOUTH:
 803           return (at(old_pos)->south && at(*new_pos)->north);
 804
 805         case D_NONE:
 806           assert(!"path_ok() can't work if direction is NONE");
 807         }
 808       return false;
 809     }
 810 }
 811
 812 void
 813 WorldMap::update(float delta)
 814 {
 815   if (enter_level && !tux->is_moving())
 816     {
 817       bool level_finished = true;
 818       SpecialTile* special_tile = at_special_tile();
 819       if (!special_tile)
 820         {
 821         std::cout << "Nothing to enter at: "
 822           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y << std::endl;
 823         return;
 824         }
 825
 826
 827       if(!special_tile->level_name.empty())
 828         {
 829           if (special_tile->x == tux->get_tile_pos().x &&
 830               special_tile->y == tux->get_tile_pos().y)
 831             {
 832               PlayerStatus old_player_status = player_status;
 833
 834               std::cout << "Enter the current level: " << special_tile->level_name << std::endl;
 835               // do a shriking fade to the special_tile
 836               shrink_fade(Vector((special_tile->x*32 + 16 + offset.x),(special_tile->y*32 + 16
 837                       + offset.y)), 500);
 838               GameSession session(datadir +  "/levels/" + special_tile->level_name,
 839                                   ST_GL_LOAD_LEVEL_FILE, special_tile->vertical_flip,
 840                                   &special_tile->statistics);
 841
 842               switch (session.run())
 843                 {
 844                 case GameSession::ES_LEVEL_FINISHED:
 845                   {
 846                     level_finished = true;
 847                     bool old_level_state = special_tile->solved;
 848                     special_tile->solved = true;
 849
 850                     // deal with statistics
 851                     special_tile->statistics.merge(global_stats);
 852                     calculate_total_stats();
 853
 854                     if (session.get_current_sector()->player->got_power !=
 855                           session.get_current_sector()->player->NONE_POWER)
 856                       player_status.bonus = PlayerStatus::FLOWER_BONUS;
 857                     else if (session.get_current_sector()->player->size == BIG)
 858                       player_status.bonus = PlayerStatus::GROWUP_BONUS;
 859                     else
 860                       player_status.bonus = PlayerStatus::NO_BONUS;
 861
 862                     if (old_level_state != special_tile->solved && special_tile->auto_path)
 863                       { // Try to detect the next direction to which we should walk
 864                         // FIXME: Mostly a hack
 865                         Direction dir = D_NONE;
 866
 867                         Tile* tile = at(tux->get_tile_pos());
 868
 869                         if (tile->north && tux->back_direction != D_NORTH)
 870                           dir = D_NORTH;
 871                         else if (tile->south && tux->back_direction != D_SOUTH)
 872                           dir = D_SOUTH;
 873                         else if (tile->east && tux->back_direction != D_EAST)
 874                           dir = D_EAST;
 875                         else if (tile->west && tux->back_direction != D_WEST)
 876                           dir = D_WEST;
 877
 878                         if (dir != D_NONE)
 879                           {
 880                             tux->set_direction(dir);
 881                             //tux->update(delta);
 882                           }
 883
 884                         std::cout << "Walk to dir: " << dir << std::endl;
 885                       }
 886                   }
 887
 888                   break;
 889                 case GameSession::ES_LEVEL_ABORT:
 890                   level_finished = false;
 891                   /* In case the player's abort the special_tile, keep it using the old
 892                       status. But the minimum lives and no bonus. */
 893                   player_status.distros = old_player_status.distros;
 894                   player_status.lives = std::min(old_player_status.lives, player_status.lives);
 895                   player_status.bonus = player_status.NO_BONUS;
 896
 897                   break;
 898                 case GameSession::ES_GAME_OVER:
 899                   {
 900                   level_finished = false;
 901                   /* draw an end screen */
 902                   /* TODO: in the future, this should make a dialog a la SuperMario, asking
 903                   if the player wants to restart the world map with no score and from
 904                   level 1 */
 905                   char str[80];
 906
 907                   DrawingContext context;
 908                   context.draw_gradient(Color (200,240,220), Color(200,200,220),
 909                       LAYER_BACKGROUND0);
 910
 911                   context.draw_text(blue_text, _("GAMEOVER"),
 912                       Vector(screen->w/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 913
 914                   sprintf(str, _("COINS: %d"), player_status.distros);
 915                   context.draw_text(gold_text, str,
 916                       Vector(screen->w/2, screen->w - 32), CENTER_ALLIGN, LAYER_FOREGROUND1);
 917
 918                   total_stats.draw_message_info(context, _("Total Statistics"));
 919
 920                   context.do_drawing();
 921
 922                   SDL_Event event;
 923                   wait_for_event(event,2000,6000,true);
 924
 925                   quit = true;
 926                   player_status.reset();
 927                   break;
 928                   }
 929                 case GameSession::ES_NONE:
 930                   assert(false);
 931                   // Should never be reached
 932                   break;
 933                 }
 934
 935               SoundManager::get()->play_music(song);
 936               Menu::set_current(0);
 937               if (!savegame_file.empty())
 938                 savegame(savegame_file);
 939             }
 940         }
 941       /* The porpose of the next checking is that if the player lost
 942          the special_tile (in case there is one), don't show anything */
 943       if(level_finished)
 944         {
 945         if (!special_tile->extro_filename.empty())
 946           {
 947           // Display a text file
 948           display_text_file(special_tile->extro_filename, SCROLL_SPEED_MESSAGE, white_big_text , white_text, white_small_text, blue_text );
 949           }
 950         if (special_tile->teleport_dest_x != -1 && special_tile->teleport_dest_y != -1)
 951           {
 952           // TODO: an animation, camera scrolling or a fading would be a nice touch
 953           SoundManager::get()->play_sound(IDToSound(SND_WARP));
 954           tux->back_direction = D_NONE;
 955           tux->set_tile_pos(Vector(special_tile->teleport_dest_x, special_tile->teleport_dest_y));
 956           SDL_Delay(1000);
 957           }
 958         if (!special_tile->next_worldmap.empty())
 959           {
 960           // Load given worldmap
 961           loadmap(special_tile->next_worldmap);
 962           }
 963         if (special_tile->quit_worldmap)
 964           quit = true;
 965         }
 966     }
 967   else
 968     {
 969       tux->action(delta);
 970 //      tux->set_direction(input_direction);
 971     }
 972
 973   Menu* menu = Menu::current();
 974   if(menu)
 975     {
 976       menu->action();
 977
 978       if(menu == worldmap_menu)
 979         {
 980           switch (worldmap_menu->check())
 981             {
 982             case MNID_RETURNWORLDMAP: // Return to game
 983               break;
 984             case MNID_QUITWORLDMAP: // Quit Worldmap
 985               quit = true;
 986               break;
 987             }
 988         }
 989       else if(menu == options_menu)
 990         {
 991           process_options_menu();
 992         }
 993     }
 994 }
 995
 996 Tile*
 997 WorldMap::at(Vector p)
 998 {
 999   assert(p.x >= 0
1000          && p.x < width
1001          && p.y >= 0
1002          && p.y < height);
1003
1004   int x = int(p.x);
1005   int y = int(p.y);
1006   return tile_manager->get(tilemap[width * y + x]);
1007 }
1008
1009 WorldMap::SpecialTile*
1010 WorldMap::at_special_tile()
1011 {
1012   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1013     {
1014       if (i->x == tux->get_tile_pos().x &&
1015           i->y == tux->get_tile_pos().y)
1016         return &*i;
1017     }
1018
1019   return 0;
1020 }
1021
1022
1023 void
1024 WorldMap::draw(DrawingContext& context, const Vector& offset)
1025 {
1026   for(int y = 0; y < height; ++y)
1027     for(int x = 0; x < width; ++x)
1028       {
1029         Tile* tile = at(Vector(x, y));
1030         context.draw_surface(tile->sprite,
1031             Vector(x*32 + offset.x, y*32 + offset.y), LAYER_TILES);
1032       }
1033
1034   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1035     {
1036       if(i->invisible)
1037         continue;
1038       if(i->level_name.empty())
1039         {
1040         if (i->teleport_dest_x != -1 && i->teleport_dest_y != -1)
1041           context.draw_surface(teleporterdot,
1042               Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1043
1044         else if (!i->map_message.empty() && !i->passive_message)
1045           context.draw_surface(messagedot,
1046               Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1047
1048         continue;
1049         }
1050
1051       if (i->solved)
1052         context.draw_surface(leveldot_green,
1053             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1054       else
1055         context.draw_surface(leveldot_red,
1056             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
1057     }
1058
1059   tux->draw(context, offset);
1060   draw_status(context);
1061 }
1062
1063 void
1064 WorldMap::draw_status(DrawingContext& context)
1065 {
1066   char str[80];
1067   sprintf(str, " %d", total_stats.get_points(SCORE_STAT));
1068
1069   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1070   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1071
1072   sprintf(str, "%d", player_status.distros);
1073   context.draw_text(white_text, _("COINS"), Vector(screen->w/2 - 16*5, 0),
1074       LEFT_ALLIGN, LAYER_FOREGROUND1);
1075   context.draw_text(gold_text, str, Vector(screen->w/2 + (16*5)/2, 0),
1076         LEFT_ALLIGN, LAYER_FOREGROUND1);
1077
1078   if (player_status.lives >= 5)
1079     {
1080       sprintf(str, "%dx", player_status.lives);
1081       context.draw_text(gold_text, str,
1082           Vector(screen->w - gold_text->get_text_width(str) - tux_life->w, 0),
1083           LEFT_ALLIGN, LAYER_FOREGROUND1);
1084       context.draw_surface(tux_life, Vector(screen->w -
1085             gold_text->get_text_width("9"), 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1086     }
1087   else
1088     {
1089       for(int i= 0; i < player_status.lives; ++i)
1090         context.draw_surface(tux_life,
1091             Vector(screen->w - tux_life->w*4 + (tux_life->w*i), 0),
1092             LAYER_FOREGROUND1);
1093     }
1094   context.draw_text(white_text, _("LIVES"),
1095       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
1096       LEFT_ALLIGN, LAYER_FOREGROUND1);
1097
1098   if (!tux->is_moving())
1099     {
1100       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1101         {
1102           if (i->x == tux->get_tile_pos().x &&
1103               i->y == tux->get_tile_pos().y)
1104             {
1105               if(!i->level_name.empty())
1106                 {
1107                 if(i->title == "")
1108                   get_level_title(*i);
1109
1110                 context.draw_text(white_text, i->title,
1111                     Vector(screen->w/2, screen->h - white_text->get_height() - 30),
1112                     CENTER_ALLIGN, LAYER_FOREGROUND1);
1113
1114                 i->statistics.draw_worldmap_info(context);
1115                 }
1116
1117               /* Display an in-map message in the map, if any as been selected */
1118               if(!i->map_message.empty() && !i->passive_message)
1119                 context.draw_text(gold_text, i->map_message,
1120                     Vector(screen->w/2, screen->h - white_text->get_height() - 60),
1121                     CENTER_ALLIGN, LAYER_FOREGROUND1);
1122               break;
1123             }
1124         }
1125     }
1126   /* Display a passive message in the map, if needed */
1127   if(passive_message_timer.check())
1128     context.draw_text(gold_text, passive_message,
1129             Vector(screen->w/2, screen->h - white_text->get_height() - 60),
1130             CENTER_ALLIGN, LAYER_FOREGROUND1);
1131 }
1132
1133 void
1134 WorldMap::display()
1135 {
1136   Menu::set_current(0);
1137
1138   quit = false;
1139
1140   song = SoundManager::get()->load_music(datadir +  "/music/" + music);
1141   SoundManager::get()->play_music(song);
1142
1143   FrameRate frame_rate(10);
1144   frame_rate.set_frame_limit(false);
1145
1146   frame_rate.start();
1147
1148   DrawingContext context;
1149   while(!quit)
1150     {
1151       float delta = frame_rate.get();
1152
1153       delta *= 1.3f;
1154
1155       if (delta > 10.0f)
1156         delta = .3f;
1157
1158       frame_rate.update();
1159
1160       Vector tux_pos = tux->get_pos();
1161       if (1)
1162         {
1163           offset.x = -tux_pos.x + screen->w/2;
1164           offset.y = -tux_pos.y + screen->h/2;
1165
1166           if (offset.x > 0) offset.x = 0;
1167           if (offset.y > 0) offset.y = 0;
1168
1169           if (offset.x < screen->w - width*32) offset.x = screen->w - width*32;
1170           if (offset.y < screen->h - height*32) offset.y = screen->h - height*32;
1171         }
1172
1173       draw(context, offset);
1174       get_input();
1175       update(delta);
1176
1177       if(Menu::current())
1178         {
1179           Menu::current()->draw(context);
1180           mouse_cursor->draw(context);
1181         }
1182
1183       context.do_drawing();
1184
1185       SDL_Delay(20);
1186     }
1187 }
1188
1189 void
1190 WorldMap::savegame(const std::string& filename)
1191 {
1192   if(filename == "")
1193     return;
1194
1195   std::cout << "savegame: " << filename << std::endl;
1196
1197    std::ofstream file(filename.c_str(), std::ios::out);
1198    LispWriter* writer = new LispWriter(file);
1199
1200   int nb_solved_levels = 0, total_levels = 0;
1201   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1202     {
1203       if(!i->level_name.empty())
1204         ++total_levels;
1205       if (i->solved)
1206         ++nb_solved_levels;
1207     }
1208   char nb_solved_levels_str[80], total_levels_str[80];
1209   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1210   sprintf(total_levels_str, "%d", total_levels);
1211
1212   writer->write_comment("Worldmap save file");
1213
1214   writer->start_list("supertux-savegame");
1215
1216   writer->write_int("version", 1);
1217   writer->write_string("title", std::string(name + " - " + nb_solved_levels_str + "/" + total_levels_str));
1218   writer->write_string("map", map_filename);
1219   writer->write_int("lives", player_status.lives);
1220   writer->write_int("distros", player_status.lives);
1221
1222   writer->start_list("tux");
1223
1224   writer->write_float("x", tux->get_tile_pos().x);
1225   writer->write_float("y", tux->get_tile_pos().y);
1226   writer->write_string("back", direction_to_string(tux->back_direction));
1227   writer->write_string("bonus", bonus_to_string(player_status.bonus));
1228
1229   writer->end_list("tux");
1230
1231   writer->start_list("levels");
1232
1233   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1234     {
1235       if (i->solved && !i->level_name.empty())
1236         {
1237         writer->start_list("level");
1238
1239         writer->write_string("name", i->level_name);
1240         writer->write_bool("solved", true);
1241         i->statistics.write(*writer);
1242
1243         writer->end_list("level");
1244         }
1245     }
1246
1247   writer->end_list("levels");
1248
1249   writer->end_list("supertux-savegame");
1250 }
1251
1252 void
1253 WorldMap::loadgame(const std::string& filename)
1254 {
1255   std::cout << "loadgame: " << filename << std::endl;
1256   savegame_file = filename;
1257
1258   if (access(filename.c_str(), F_OK) != 0)
1259     {
1260     load_map();
1261     return;
1262     }
1263
1264   lisp_object_t* savegame = lisp_read_from_file(filename);
1265   if (!savegame)
1266     {
1267       std::cout << "WorldMap:loadgame: File not found: " << filename << std::endl;
1268       load_map();
1269       return;
1270     }
1271
1272   lisp_object_t* cur = savegame;
1273
1274   if (strcmp(lisp_symbol(lisp_car(cur)), "supertux-savegame") != 0)
1275     {
1276     load_map();
1277     return;
1278     }
1279
1280   cur = lisp_cdr(cur);
1281   LispReader reader(cur);
1282
1283   /* Get the Map filename and then load it before setting special_tile settings */
1284   std::string cur_map_filename = map_filename;
1285   reader.read_string("map", map_filename);
1286   if(cur_map_filename != map_filename)
1287     load_map();
1288
1289   reader.read_int("lives", player_status.lives);
1290   reader.read_int("distros", player_status.distros);
1291
1292   if (player_status.lives < 0)
1293     player_status.lives = START_LIVES;
1294
1295   lisp_object_t* tux_cur = 0;
1296   if (reader.read_lisp("tux", tux_cur))
1297     {
1298       Vector p;
1299       std::string back_str = "none";
1300       std::string bonus_str = "none";
1301
1302       LispReader tux_reader(tux_cur);
1303       tux_reader.read_float("x", p.x);
1304       tux_reader.read_float("y", p.y);
1305       tux_reader.read_string("back", back_str);
1306       tux_reader.read_string("bonus", bonus_str);
1307
1308       player_status.bonus = string_to_bonus(bonus_str);
1309       tux->back_direction = string_to_direction(back_str);
1310       tux->set_tile_pos(p);
1311     }
1312
1313   lisp_object_t* level_cur = 0;
1314   if (reader.read_lisp("levels", level_cur))
1315     {
1316       while(level_cur)
1317         {
1318           lisp_object_t* sym  = lisp_car(lisp_car(level_cur));
1319           lisp_object_t* data = lisp_cdr(lisp_car(level_cur));
1320
1321           if (strcmp(lisp_symbol(sym), "level") == 0)
1322             {
1323               std::string name;
1324               bool solved = false;
1325
1326               LispReader level_reader(data);
1327               level_reader.read_string("name", name);
1328               level_reader.read_bool("solved", solved);
1329
1330               for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1331                 {
1332                   if (name == i->level_name)
1333                     {
1334                     i->solved = solved;
1335                     i->statistics.parse(level_reader);
1336                     break;
1337                     }
1338                 }
1339             }
1340
1341           level_cur = lisp_cdr(level_cur);
1342         }
1343     }
1344
1345   lisp_free(savegame);
1346
1347   calculate_total_stats();
1348 }
1349
1350 void
1351 WorldMap::loadmap(const std::string& filename)
1352 {
1353   savegame_file = "";
1354   map_filename = filename;
1355   load_map();
1356 }
1357
1358 } // namespace WorldMapNS
1359
1360 /* Local Variables: */
1361 /* mode:c++ */
1362 /* End: */
1363