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