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 "globals.h"
  27 #include "screen/surface.h"
  28 #include "screen/screen.h"
  29 #include "screen/drawing_context.h"
  30 #include "lispreader.h"
  31 #include "gameloop.h"
  32 #include "setup.h"
  33 #include "sector.h"
  34 #include "worldmap.h"
  35 #include "sound_manager.h"
  36 #include "resources.h"
  37 #include "gettext.h"
  38
  39 namespace WorldMapNS {
  40
  41 Direction reverse_dir(Direction direction)
  42 {
  43   switch(direction)
  44     {
  45     case D_WEST:
  46       return D_EAST;
  47     case D_EAST:
  48       return D_WEST;
  49     case D_NORTH:
  50       return D_SOUTH;
  51     case D_SOUTH:
  52       return D_NORTH;
  53     case D_NONE:
  54       return D_NONE;
  55     }
  56   return D_NONE;
  57 }
  58
  59 std::string
  60 direction_to_string(Direction direction)
  61 {
  62   switch(direction)
  63     {
  64     case D_WEST:
  65       return "west";
  66     case D_EAST:
  67       return "east";
  68     case D_NORTH:
  69       return "north";
  70     case D_SOUTH:
  71       return "south";
  72     default:
  73       return "none";
  74     }
  75 }
  76
  77 Direction
  78 string_to_direction(const std::string& directory)
  79 {
  80   if (directory == "west")
  81     return D_WEST;
  82   else if (directory == "east")
  83     return D_EAST;
  84   else if (directory == "north")
  85     return D_NORTH;
  86   else if (directory == "south")
  87     return D_SOUTH;
  88   else
  89     return D_NONE;
  90 }
  91
  92 TileManager::TileManager()
  93 {
  94   std::string stwt_filename = datadir +  "/images/worldmap/antarctica.stwt";
  95   lisp_object_t* root_obj = lisp_read_from_file(stwt_filename);
  96
  97   if (!root_obj)
  98     st_abort("Couldn't load file", stwt_filename);
  99
 100   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap-tiles") == 0)
 101     {
 102       lisp_object_t* cur = lisp_cdr(root_obj);
 103
 104       while(!lisp_nil_p(cur))
 105         {
 106           lisp_object_t* element = lisp_car(cur);
 107
 108           if (strcmp(lisp_symbol(lisp_car(element)), "tile") == 0)
 109             {
 110               int id = 0;
 111               std::string filename = "<invalid>";
 112
 113               Tile* tile = new Tile;
 114               tile->north = true;
 115               tile->east  = true;
 116               tile->south = true;
 117               tile->west  = true;
 118               tile->stop  = true;
 119               tile->auto_walk = false;
 120
 121               LispReader reader(lisp_cdr(element));
 122               reader.read_int("id", id);
 123               reader.read_bool("north", tile->north);
 124               reader.read_bool("south", tile->south);
 125               reader.read_bool("west",  tile->west);
 126               reader.read_bool("east",  tile->east);
 127               reader.read_bool("stop",  tile->stop);
 128               reader.read_bool("auto-walk",  tile->auto_walk);
 129               reader.read_string("image", filename);
 130
 131               tile->sprite = new Surface(
 132                            datadir +  "/images/worldmap/" + filename,
 133                            USE_ALPHA);
 134
 135               if (id >= int(tiles.size()))
 136                 tiles.resize(id+1);
 137
 138               tiles[id] = tile;
 139             }
 140           else
 141             {
 142               puts("Unhandled symbol");
 143             }
 144
 145           cur = lisp_cdr(cur);
 146         }
 147     }
 148   else
 149     {
 150       assert(0);
 151     }
 152
 153   lisp_free(root_obj);
 154 }
 155
 156 TileManager::~TileManager()
 157 {
 158   for(std::vector<Tile*>::iterator i = tiles.begin(); i != tiles.end(); ++i)
 159     delete *i;
 160 }
 161
 162 Tile*
 163 TileManager::get(int i)
 164 {
 165   assert(i >=0 && i < int(tiles.size()));
 166   return tiles[i];
 167 }
 168
 169 //---------------------------------------------------------------------------
 170
 171 Tux::Tux(WorldMap* worldmap_)
 172   : worldmap(worldmap_)
 173 {
 174   largetux_sprite = new Surface(datadir +  "/images/worldmap/tux.png", USE_ALPHA);
 175   firetux_sprite = new Surface(datadir +  "/images/worldmap/firetux.png", USE_ALPHA);
 176   smalltux_sprite = new Surface(datadir +  "/images/worldmap/smalltux.png", USE_ALPHA);
 177
 178   offset = 0;
 179   moving = false;
 180   tile_pos.x = 4;
 181   tile_pos.y = 5;
 182   direction = D_NONE;
 183   input_direction = D_NONE;
 184 }
 185
 186 Tux::~Tux()
 187 {
 188   delete smalltux_sprite;
 189   delete firetux_sprite;
 190   delete largetux_sprite;
 191 }
 192
 193 void
 194 Tux::draw(DrawingContext& context, const Vector& offset)
 195 {
 196   Vector pos = get_pos();
 197   switch (player_status.bonus)
 198     {
 199     case PlayerStatus::GROWUP_BONUS:
 200       context.draw_surface(largetux_sprite,
 201           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 202       break;
 203     case PlayerStatus::FLOWER_BONUS:
 204       context.draw_surface(firetux_sprite,
 205           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 206       break;
 207     case PlayerStatus::NO_BONUS:
 208       context.draw_surface(smalltux_sprite,
 209           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 210       break;
 211     }
 212 }
 213
 214
 215 Vector
 216 Tux::get_pos()
 217 {
 218   float x = tile_pos.x * 32;
 219   float y = tile_pos.y * 32;
 220
 221   switch(direction)
 222     {
 223     case D_WEST:
 224       x -= offset - 32;
 225       break;
 226     case D_EAST:
 227       x += offset - 32;
 228       break;
 229     case D_NORTH:
 230       y -= offset - 32;
 231       break;
 232     case D_SOUTH:
 233       y += offset - 32;
 234       break;
 235     case D_NONE:
 236       break;
 237     }
 238
 239   return Vector((int)x, (int)y);
 240 }
 241
 242 void
 243 Tux::stop()
 244 {
 245   offset = 0;
 246   direction = D_NONE;
 247   moving = false;
 248 }
 249
 250 void
 251 Tux::action(float delta)
 252 {
 253   if (!moving)
 254     {
 255       if (input_direction != D_NONE)
 256         {
 257           WorldMap::Level* level = worldmap->at_level();
 258
 259           // We got a new direction, so lets start walking when possible
 260           Vector next_tile;
 261           if ((!level || level->solved)
 262               && worldmap->path_ok(input_direction, tile_pos, &next_tile))
 263             {
 264               tile_pos = next_tile;
 265               moving = true;
 266               direction = input_direction;
 267               back_direction = reverse_dir(direction);
 268             }
 269           else if (input_direction == back_direction)
 270             {
 271               std::cout << "Back triggered" << std::endl;
 272               moving = true;
 273               direction = input_direction;
 274               tile_pos = worldmap->get_next_tile(tile_pos, direction);
 275               back_direction = reverse_dir(direction);
 276             }
 277         }
 278     }
 279   else
 280     {
 281       // Let tux walk a few pixels (20 pixel/sec)
 282       offset += 20.0f * delta;
 283
 284       if (offset > 32)
 285         { // We reached the next tile, so we check what to do now
 286           offset -= 32;
 287
 288           if (worldmap->at(tile_pos)->stop || worldmap->at_level())
 289             {
 290               stop();
 291             }
 292           else
 293             {
 294               if (worldmap->at(tile_pos)->auto_walk)
 295                 { // Turn to a new direction
 296                   Tile* tile = worldmap->at(tile_pos);
 297                   Direction dir = D_NONE;
 298
 299                   if (tile->north && back_direction != D_NORTH)
 300                     dir = D_NORTH;
 301                   else if (tile->south && back_direction != D_SOUTH)
 302                     dir = D_SOUTH;
 303                   else if (tile->east && back_direction != D_EAST)
 304                     dir = D_EAST;
 305                   else if (tile->west && back_direction != D_WEST)
 306                     dir = D_WEST;
 307
 308                   if (dir != D_NONE)
 309                     {
 310                       direction = dir;
 311                       back_direction = reverse_dir(direction);
 312                     }
 313                   else
 314                     {
 315                       // Should never be reached if tiledata is good
 316                       stop();
 317                       return;
 318                     }
 319                 }
 320
 321               // Walk automatically to the next tile
 322               Vector next_tile;
 323               if (worldmap->path_ok(direction, tile_pos, &next_tile))
 324                 {
 325                   tile_pos = next_tile;
 326                 }
 327               else
 328                 {
 329                   puts("Tilemap data is buggy");
 330                   stop();
 331                 }
 332             }
 333         }
 334     }
 335 }
 336
 337 //---------------------------------------------------------------------------
 338 Tile::Tile()
 339 {
 340 }
 341
 342 Tile::~Tile()
 343 {
 344   delete sprite;
 345 }
 346
 347 //---------------------------------------------------------------------------
 348
 349 WorldMap::WorldMap()
 350 {
 351   tile_manager = new TileManager();
 352   tux = new Tux(this);
 353
 354   width  = 20;
 355   height = 15;
 356
 357   level_sprite = new Surface(datadir +  "/images/worldmap/levelmarker.png", USE_ALPHA);
 358   leveldot_green = new Surface(datadir +  "/images/worldmap/leveldot_green.png", USE_ALPHA);
 359   leveldot_red = new Surface(datadir +  "/images/worldmap/leveldot_red.png", USE_ALPHA);
 360
 361   input_direction = D_NONE;
 362   enter_level = false;
 363
 364   name = "<no title>";
 365   music = "SALCON.MOD";
 366 }
 367
 368 WorldMap::~WorldMap()
 369 {
 370   delete tux;
 371   delete tile_manager;
 372
 373   delete level_sprite;
 374   delete leveldot_green;
 375   delete leveldot_red;
 376 }
 377
 378 void
 379 WorldMap::load_map()
 380 {
 381   std::cout << "Loading map: " << datadir + "/levels/worldmap/" + map_filename << std::endl;
 382
 383   lisp_object_t* root_obj = lisp_read_from_file(datadir + "/levels/worldmap/" + map_filename);
 384   if (!root_obj)
 385     st_abort("Couldn't load file", datadir + "/levels/worldmap/" + map_filename);
 386
 387   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap") == 0)
 388     {
 389       lisp_object_t* cur = lisp_cdr(root_obj);
 390
 391       while(!lisp_nil_p(cur))
 392         {
 393           lisp_object_t* element = lisp_car(cur);
 394
 395           if (strcmp(lisp_symbol(lisp_car(element)), "tilemap") == 0)
 396             {
 397               LispReader reader(lisp_cdr(element));
 398               reader.read_int("width",  width);
 399               reader.read_int("height", height);
 400               reader.read_int_vector("data", tilemap);
 401             }
 402           else if (strcmp(lisp_symbol(lisp_car(element)), "properties") == 0)
 403             {
 404               LispReader reader(lisp_cdr(element));
 405               reader.read_string("name", name, true);
 406               reader.read_string("music", music);
 407             }
 408           else if (strcmp(lisp_symbol(lisp_car(element)), "levels") == 0)
 409             {
 410               lisp_object_t* cur = lisp_cdr(element);
 411
 412               while(!lisp_nil_p(cur))
 413                 {
 414                   lisp_object_t* element = lisp_car(cur);
 415
 416                   if (strcmp(lisp_symbol(lisp_car(element)), "level") == 0)
 417                     {
 418                       Level level;
 419                       LispReader reader(lisp_cdr(element));
 420                       level.solved = false;
 421
 422                       level.north = true;
 423                       level.east  = true;
 424                       level.south = true;
 425                       level.west  = true;
 426
 427                       reader.read_string("extro-filename", level.extro_filename);
 428                       reader.read_string("name", level.name, true);
 429                       reader.read_int("x", level.x);
 430                       reader.read_int("y", level.y);
 431                       level.vertical_flip = false;
 432                       reader.read_bool("flip", level.vertical_flip);
 433
 434                       levels.push_back(level);
 435                     }
 436
 437                   cur = lisp_cdr(cur);
 438                 }
 439             }
 440           else
 441             {
 442
 443             }
 444
 445           cur = lisp_cdr(cur);
 446         }
 447     }
 448
 449     lisp_free(root_obj);
 450 }
 451
 452 void WorldMap::get_level_title(Level& level)
 453 {
 454   /** get level's title */
 455   level.title = "<no title>";
 456
 457   FILE * fi;
 458   lisp_object_t* root_obj = 0;
 459   fi = fopen((datadir +  "/levels/" + level.name).c_str(), "r");
 460   if (fi == NULL)
 461   {
 462     perror((datadir +  "/levels/" + level.name).c_str());
 463     return;
 464   }
 465
 466   lisp_stream_t stream;
 467   lisp_stream_init_file (&stream, fi);
 468   root_obj = lisp_read (&stream);
 469
 470   if (root_obj->type == LISP_TYPE_EOF || root_obj->type == LISP_TYPE_PARSE_ERROR)
 471   {
 472     printf("World: Parse Error in file %s", level.name.c_str());
 473   }
 474
 475   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-level") == 0)
 476   {
 477     LispReader reader(lisp_cdr(root_obj));
 478     reader.read_string("name", level.title, true);
 479   }
 480
 481   lisp_free(root_obj);
 482
 483   fclose(fi);
 484 }
 485
 486 void
 487 WorldMap::on_escape_press()
 488 {
 489   // Show or hide the menu
 490   if(!Menu::current())
 491     Menu::set_current(worldmap_menu);
 492   else
 493     Menu::set_current(0);
 494 }
 495
 496 void
 497 WorldMap::get_input()
 498 {
 499   enter_level = false;
 500   input_direction = D_NONE;
 501
 502   SDL_Event event;
 503   while (SDL_PollEvent(&event))
 504     {
 505       if (Menu::current())
 506         {
 507           Menu::current()->event(event);
 508         }
 509       else
 510         {
 511           switch(event.type)
 512             {
 513             case SDL_QUIT:
 514               st_abort("Received window close", "");
 515               break;
 516
 517             case SDL_KEYDOWN:
 518               switch(event.key.keysym.sym)
 519                 {
 520                 case SDLK_ESCAPE:
 521                   on_escape_press();
 522                   break;
 523                 case SDLK_LCTRL:
 524                 case SDLK_RETURN:
 525                   enter_level = true;
 526                   break;
 527                 default:
 528                   break;
 529                 }
 530               break;
 531
 532             case SDL_JOYAXISMOTION:
 533               if (event.jaxis.axis == joystick_keymap.x_axis)
 534                 {
 535                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 536                     input_direction = D_WEST;
 537                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 538                     input_direction = D_EAST;
 539                 }
 540               else if (event.jaxis.axis == joystick_keymap.y_axis)
 541                 {
 542                   if (event.jaxis.value > joystick_keymap.dead_zone)
 543                     input_direction = D_SOUTH;
 544                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 545                     input_direction = D_NORTH;
 546                 }
 547               break;
 548
 549             case SDL_JOYBUTTONDOWN:
 550               if (event.jbutton.button == joystick_keymap.b_button)
 551                 enter_level = true;
 552               else if (event.jbutton.button == joystick_keymap.start_button)
 553                 on_escape_press();
 554               break;
 555
 556             default:
 557               break;
 558             }
 559         }
 560     }
 561
 562   if (!Menu::current())
 563     {
 564       Uint8 *keystate = SDL_GetKeyState(NULL);
 565
 566       if (keystate[SDLK_LEFT])
 567         input_direction = D_WEST;
 568       else if (keystate[SDLK_RIGHT])
 569         input_direction = D_EAST;
 570       else if (keystate[SDLK_UP])
 571         input_direction = D_NORTH;
 572       else if (keystate[SDLK_DOWN])
 573         input_direction = D_SOUTH;
 574     }
 575 }
 576
 577 Vector
 578 WorldMap::get_next_tile(Vector pos, Direction direction)
 579 {
 580   switch(direction)
 581     {
 582     case D_WEST:
 583       pos.x -= 1;
 584       break;
 585     case D_EAST:
 586       pos.x += 1;
 587       break;
 588     case D_NORTH:
 589       pos.y -= 1;
 590       break;
 591     case D_SOUTH:
 592       pos.y += 1;
 593       break;
 594     case D_NONE:
 595       break;
 596     }
 597   return pos;
 598 }
 599
 600 bool
 601 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 602 {
 603   *new_pos = get_next_tile(old_pos, direction);
 604
 605   if (!(new_pos->x >= 0 && new_pos->x < width
 606         && new_pos->y >= 0 && new_pos->y < height))
 607     { // New position is outsite the tilemap
 608       return false;
 609     }
 610   else
 611     { // Check if we the tile allows us to go to new_pos
 612       switch(direction)
 613         {
 614         case D_WEST:
 615           return (at(old_pos)->west && at(*new_pos)->east);
 616
 617         case D_EAST:
 618           return (at(old_pos)->east && at(*new_pos)->west);
 619
 620         case D_NORTH:
 621           return (at(old_pos)->north && at(*new_pos)->south);
 622
 623         case D_SOUTH:
 624           return (at(old_pos)->south && at(*new_pos)->north);
 625
 626         case D_NONE:
 627           assert(!"path_ok() can't work if direction is NONE");
 628         }
 629       return false;
 630     }
 631 }
 632
 633 void
 634 WorldMap::update(float delta)
 635 {
 636   if (enter_level && !tux->is_moving())
 637     {
 638       Level* level = at_level();
 639       if (level)
 640         {
 641           if (level->x == tux->get_tile_pos().x &&
 642               level->y == tux->get_tile_pos().y)
 643             {
 644               PlayerStatus old_player_status = player_status;
 645
 646               std::cout << "Enter the current level: " << level->name << std::endl;
 647               // do a shriking fade to the level
 648               shrink_fade(Vector((level->x*32 + 16 + offset.x),(level->y*32 + 16
 649                       + offset.y)), 500);
 650               GameSession session(datadir +  "/levels/" + level->name,
 651                                   ST_GL_LOAD_LEVEL_FILE, level->vertical_flip);
 652
 653               switch (session.run())
 654                 {
 655                 case GameSession::ES_LEVEL_FINISHED:
 656                   {
 657                     bool old_level_state = level->solved;
 658                     level->solved = true;
 659
 660                     if (session.get_current_sector()->player->got_power !=
 661                           session.get_current_sector()->player->NONE_POWER)
 662                       player_status.bonus = PlayerStatus::FLOWER_BONUS;
 663                     else if (session.get_current_sector()->player->size == BIG)
 664                       player_status.bonus = PlayerStatus::GROWUP_BONUS;
 665                     else
 666                       player_status.bonus = PlayerStatus::NO_BONUS;
 667
 668                     if (old_level_state != level->solved)
 669                       { // Try to detect the next direction to which we should walk
 670                         // FIXME: Mostly a hack
 671                         Direction dir = D_NONE;
 672
 673                         Tile* tile = at(tux->get_tile_pos());
 674
 675                         if (tile->north && tux->back_direction != D_NORTH)
 676                           dir = D_NORTH;
 677                         else if (tile->south && tux->back_direction != D_SOUTH)
 678                           dir = D_SOUTH;
 679                         else if (tile->east && tux->back_direction != D_EAST)
 680                           dir = D_EAST;
 681                         else if (tile->west && tux->back_direction != D_WEST)
 682                           dir = D_WEST;
 683
 684                         if (dir != D_NONE)
 685                           {
 686                             tux->set_direction(dir);
 687                             //tux->update(delta);
 688                           }
 689
 690                         std::cout << "Walk to dir: " << dir << std::endl;
 691                       }
 692
 693                     if (!level->extro_filename.empty())
 694                       {
 695                         MusicRef theme =
 696                           sound_manager->load_music(datadir + "/music/theme.mod");
 697                         sound_manager->play_music(theme);
 698                         // Display final credits and go back to the main menu
 699                         display_text_file(level->extro_filename,
 700                                           "/images/background/extro.jpg", SCROLL_SPEED_MESSAGE);
 701                         display_text_file("CREDITS",
 702                                           "/images/background/oiltux.jpg", SCROLL_SPEED_CREDITS);
 703                         quit = true;
 704                       }
 705                   }
 706
 707                   break;
 708                 case GameSession::ES_LEVEL_ABORT:
 709                   /* In case the player's abort the level, keep it using the old
 710                       status. But the minimum lives and no bonus. */
 711                   player_status.score = old_player_status.score;
 712                   player_status.distros = old_player_status.distros;
 713                   player_status.lives = std::min(old_player_status.lives, player_status.lives);
 714                   player_status.bonus = player_status.NO_BONUS;
 715                   break;
 716                 case GameSession::ES_GAME_OVER:
 717                 {
 718                   /* draw an end screen */
 719                   /* in the future, this should make a dialog a la SuperMario, asking
 720                   if the player wants to restart the world map with no score and from
 721                   level 1 */
 722                   char str[80];
 723
 724                   DrawingContext context;
 725                   context.draw_gradient(Color (0, 255, 0), Color (255, 0, 255),
 726                       LAYER_BACKGROUND0);
 727
 728                   context.draw_text_center(blue_text, _("GAMEOVER"),
 729                       Vector(0, 200), LAYER_FOREGROUND1);
 730
 731                   sprintf(str, _("SCORE: %d"), player_status.score);
 732                   context.draw_text_center(gold_text, str,
 733                       Vector(0, 224), LAYER_FOREGROUND1);
 734
 735                   sprintf(str, _("COINS: %d"), player_status.distros);
 736                   context.draw_text_center(gold_text, str,
 737                       Vector(0, screen->w - 32), LAYER_FOREGROUND1);
 738
 739                   context.do_drawing();
 740
 741                   SDL_Event event;
 742                   wait_for_event(event,2000,5000,true);
 743
 744                   quit = true;
 745                   player_status.reset();
 746                   break;
 747                 }
 748                 case GameSession::ES_NONE:
 749                   assert(false);
 750                   // Should never be reached
 751                   break;
 752                 }
 753
 754               sound_manager->play_music(song);
 755               Menu::set_current(0);
 756               if (!savegame_file.empty())
 757                 savegame(savegame_file);
 758               return;
 759             }
 760         }
 761       else
 762         {
 763           std::cout << "Nothing to enter at: "
 764                     << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y << std::endl;
 765         }
 766     }
 767   else
 768     {
 769       tux->action(delta);
 770       tux->set_direction(input_direction);
 771     }
 772
 773   Menu* menu = Menu::current();
 774   if(menu)
 775     {
 776       menu->action();
 777
 778       if(menu == worldmap_menu)
 779         {
 780           switch (worldmap_menu->check())
 781             {
 782             case MNID_RETURNWORLDMAP: // Return to game
 783               break;
 784             case MNID_QUITWORLDMAP: // Quit Worldmap
 785               quit = true;
 786               break;
 787             }
 788         }
 789       else if(menu == options_menu)
 790         {
 791           process_options_menu();
 792         }
 793     }
 794 }
 795
 796 Tile*
 797 WorldMap::at(Vector p)
 798 {
 799   assert(p.x >= 0
 800          && p.x < width
 801          && p.y >= 0
 802          && p.y < height);
 803
 804   int x = int(p.x);
 805   int y = int(p.y);
 806   return tile_manager->get(tilemap[width * y + x]);
 807 }
 808
 809 WorldMap::Level*
 810 WorldMap::at_level()
 811 {
 812   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 813     {
 814       if (i->x == tux->get_tile_pos().x &&
 815           i->y == tux->get_tile_pos().y)
 816         return &*i;
 817     }
 818
 819   return 0;
 820 }
 821
 822
 823 void
 824 WorldMap::draw(DrawingContext& context, const Vector& offset)
 825 {
 826   for(int y = 0; y < height; ++y)
 827     for(int x = 0; x < width; ++x)
 828       {
 829         Tile* tile = at(Vector(x, y));
 830         context.draw_surface(tile->sprite,
 831             Vector(x*32 + offset.x, y*32 + offset.y), LAYER_TILES);
 832       }
 833
 834   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 835     {
 836       if (i->solved)
 837         context.draw_surface(leveldot_green,
 838             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
 839       else
 840         context.draw_surface(leveldot_red,
 841             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
 842     }
 843
 844   tux->draw(context, offset);
 845   draw_status(context);
 846 }
 847
 848 void
 849 WorldMap::draw_status(DrawingContext& context)
 850 {
 851   char str[80];
 852   sprintf(str, " %d", player_status.score);
 853
 854   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LAYER_FOREGROUND1);
 855   context.draw_text(gold_text, str, Vector(96, 0), LAYER_FOREGROUND1);
 856
 857   sprintf(str, "%d", player_status.distros);
 858   context.draw_text(white_text, _("COINS"), Vector(screen->w/2 - 16*5, 0),
 859       LAYER_FOREGROUND1);
 860   context.draw_text(gold_text, str, Vector(screen->w/2 + (16*5)/2, 0),
 861         LAYER_FOREGROUND1);
 862
 863   if (player_status.lives >= 5)
 864     {
 865       sprintf(str, "%dx", player_status.lives);
 866       context.draw_text(gold_text, str,
 867           Vector(screen->w - gold_text->get_text_width(str) - tux_life->w, 0),
 868           LAYER_FOREGROUND1);
 869       context.draw_surface(tux_life, Vector(screen->w -
 870             gold_text->get_text_width("9"), 0), LAYER_FOREGROUND1);
 871     }
 872   else
 873     {
 874       for(int i= 0; i < player_status.lives; ++i)
 875         context.draw_surface(tux_life,
 876             Vector(screen->w - tux_life->w*4 + (tux_life->w*i), 0),
 877             LAYER_FOREGROUND1);
 878     }
 879   context.draw_text(white_text, _("LIVES"),
 880       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
 881       LAYER_FOREGROUND1);
 882
 883   if (!tux->is_moving())
 884     {
 885       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 886         {
 887           if (i->x == tux->get_tile_pos().x &&
 888               i->y == tux->get_tile_pos().y)
 889             {
 890               if(i->title == "")
 891                 get_level_title(*i);
 892
 893               context.draw_text(white_text, i->title,
 894                   Vector(screen->w/2 - white_text->get_text_width(i->title)/2,
 895                          screen->h - white_text->get_height() - 30),
 896                   LAYER_FOREGROUND1);
 897               break;
 898             }
 899         }
 900     }
 901 }
 902
 903 void
 904 WorldMap::display()
 905 {
 906   Menu::set_current(0);
 907
 908   quit = false;
 909
 910   song = sound_manager->load_music(datadir +  "/music/" + music);
 911   sound_manager->play_music(song);
 912
 913   unsigned int last_update_time;
 914   unsigned int update_time;
 915
 916   last_update_time = update_time = st_get_ticks();
 917
 918   DrawingContext context;
 919   while(!quit)
 920     {
 921       float delta = ((float)(update_time-last_update_time))/100.0;
 922
 923       delta *= 1.3f;
 924
 925       if (delta > 10.0f)
 926         delta = .3f;
 927
 928       last_update_time = update_time;
 929       update_time      = st_get_ticks();
 930
 931       Vector tux_pos = tux->get_pos();
 932       if (1)
 933         {
 934           offset.x = -tux_pos.x + screen->w/2;
 935           offset.y = -tux_pos.y + screen->h/2;
 936
 937           if (offset.x > 0) offset.x = 0;
 938           if (offset.y > 0) offset.y = 0;
 939
 940           if (offset.x < screen->w - width*32) offset.x = screen->w - width*32;
 941           if (offset.y < screen->h - height*32) offset.y = screen->h - height*32;
 942         }
 943
 944       draw(context, offset);
 945       get_input();
 946       update(delta);
 947
 948       if(Menu::current())
 949         {
 950           Menu::current()->draw(context);
 951           mouse_cursor->draw(context);
 952         }
 953
 954       context.do_drawing();
 955
 956       SDL_Delay(20);
 957     }
 958 }
 959
 960 void
 961 WorldMap::savegame(const std::string& filename)
 962 {
 963   if(filename != "")
 964     return;
 965
 966   std::cout << "savegame: " << filename << std::endl;
 967   std::ofstream out(filename.c_str());
 968
 969   int nb_solved_levels = 0;
 970   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 971     {
 972       if (i->solved)
 973         ++nb_solved_levels;
 974     }
 975
 976   out << "(supertux-savegame\n"
 977       << "  (version 1)\n"
 978       << "  (title  \"" << name << " - " << nb_solved_levels << "/" << levels.size() << "\")\n"
 979       << "  (map    \"" << map_filename << "\")\n"
 980       << "  (lives   " << player_status.lives << ")\n"
 981       << "  (score   " << player_status.score << ")\n"
 982       << "  (distros " << player_status.distros << ")\n"
 983       << "  (tux (x " << tux->get_tile_pos().x << ") (y " << tux->get_tile_pos().y << ")\n"
 984       << "       (back \"" << direction_to_string(tux->back_direction) << "\")\n"
 985       << "       (bonus \"" << bonus_to_string(player_status.bonus) <<  "\"))\n"
 986       << "  (levels\n";
 987
 988   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 989     {
 990       if (i->solved)
 991         {
 992           out << "     (level (name \"" << i->name << "\")\n"
 993               << "            (solved #t))\n";
 994         }
 995     }
 996
 997   out << "   )\n"
 998       << " )\n\n;; EOF ;;" << std::endl;
 999 }
1000
1001 void
1002 WorldMap::loadgame(const std::string& filename)
1003 {
1004   std::cout << "loadgame: " << filename << std::endl;
1005   savegame_file = filename;
1006   map_filename = "icyisland.stwm";
1007
1008   if (access(filename.c_str(), F_OK) != 0)
1009     {
1010     load_map();
1011     return;
1012     }
1013
1014   lisp_object_t* savegame = lisp_read_from_file(filename);
1015   if (!savegame)
1016     {
1017       std::cout << "WorldMap:loadgame: File not found: " << filename << std::endl;
1018       load_map();
1019       return;
1020     }
1021
1022   lisp_object_t* cur = savegame;
1023
1024   if (strcmp(lisp_symbol(lisp_car(cur)), "supertux-savegame") != 0)
1025     {
1026     load_map();
1027     return;
1028     }
1029
1030   cur = lisp_cdr(cur);
1031   LispReader reader(cur);
1032
1033   /* Get the Map filename and then load it before setting level settings */
1034   reader.read_string("map", map_filename);
1035   load_map();
1036
1037   reader.read_int("lives", player_status.lives);
1038   reader.read_int("score", player_status.score);
1039   reader.read_int("distros", player_status.distros);
1040
1041   if (player_status.lives < 0)
1042     player_status.lives = START_LIVES;
1043
1044   lisp_object_t* tux_cur = 0;
1045   if (reader.read_lisp("tux", tux_cur))
1046     {
1047       Vector p;
1048       std::string back_str = "none";
1049       std::string bonus_str = "none";
1050
1051       LispReader tux_reader(tux_cur);
1052       tux_reader.read_float("x", p.x);
1053       tux_reader.read_float("y", p.y);
1054       tux_reader.read_string("back", back_str);
1055       tux_reader.read_string("bonus", bonus_str);
1056
1057       player_status.bonus = string_to_bonus(bonus_str);
1058       tux->back_direction = string_to_direction(back_str);
1059       tux->set_tile_pos(p);
1060     }
1061
1062   lisp_object_t* level_cur = 0;
1063   if (reader.read_lisp("levels", level_cur))
1064     {
1065       while(level_cur)
1066         {
1067           lisp_object_t* sym  = lisp_car(lisp_car(level_cur));
1068           lisp_object_t* data = lisp_cdr(lisp_car(level_cur));
1069
1070           if (strcmp(lisp_symbol(sym), "level") == 0)
1071             {
1072               std::string name;
1073               bool solved = false;
1074
1075               LispReader level_reader(data);
1076               level_reader.read_string("name", name, true);
1077               level_reader.read_bool("solved", solved);
1078
1079               for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1080                 {
1081                   if (name == i->name)
1082                     i->solved = solved;
1083                 }
1084             }
1085
1086           level_cur = lisp_cdr(level_cur);
1087         }
1088     }
1089
1090   lisp_free(savegame);
1091 }
1092
1093 void
1094 WorldMap::loadmap(const std::string& filename)
1095 {
1096   savegame_file = "";
1097   map_filename = filename;
1098   load_map();
1099 }
1100
1101 } // namespace WorldMapNS
1102
1103 /* Local Variables: */
1104 /* mode:c++ */
1105 /* End: */
1106