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                            true);
 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", true);
 175   firetux_sprite = new Surface(datadir +  "/images/worldmap/firetux.png", true);
 176   smalltux_sprite = new Surface(datadir +  "/images/worldmap/smalltux.png", true);
 177
 178   offset = 0;
 179   moving = false;
 180   tile_pos.x = worldmap->get_start_x();
 181   tile_pos.y = worldmap->get_start_y();
 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   start_x = 4;
 358   start_y = 5;
 359
 360   level_sprite = new Surface(datadir +  "/images/worldmap/levelmarker.png", true);
 361   leveldot_green = new Surface(datadir +  "/images/worldmap/leveldot_green.png", true);
 362   leveldot_red = new Surface(datadir +  "/images/worldmap/leveldot_red.png", true);
 363
 364   input_direction = D_NONE;
 365   enter_level = false;
 366
 367   name = "<no title>";
 368   music = "SALCON.MOD";
 369 }
 370
 371 WorldMap::~WorldMap()
 372 {
 373   delete tux;
 374   delete tile_manager;
 375
 376   delete level_sprite;
 377   delete leveldot_green;
 378   delete leveldot_red;
 379 }
 380
 381 void
 382 WorldMap::load_map()
 383 {
 384   lisp_object_t* root_obj = lisp_read_from_file(datadir + "/levels/worldmap/" + map_filename);
 385   if (!root_obj)
 386     st_abort("Couldn't load file", datadir + "/levels/worldmap/" + map_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, true);
 407               reader.read_string("music", music);
 408               reader.read_int("start_pos_x", start_x);
 409               reader.read_int("start_pos_y", start_y);
 410             }
 411           else if (strcmp(lisp_symbol(lisp_car(element)), "levels") == 0)
 412             {
 413               lisp_object_t* cur = lisp_cdr(element);
 414
 415               while(!lisp_nil_p(cur))
 416                 {
 417                   lisp_object_t* element = lisp_car(cur);
 418
 419                   if (strcmp(lisp_symbol(lisp_car(element)), "level") == 0)
 420                     {
 421                       Level level;
 422                       LispReader reader(lisp_cdr(element));
 423                       level.solved = false;
 424
 425                       level.north = true;
 426                       level.east  = true;
 427                       level.south = true;
 428                       level.west  = true;
 429
 430                       reader.read_string("extro-filename", level.extro_filename);
 431                       reader.read_string("name", level.name, true);
 432                       reader.read_int("x", level.x);
 433                       reader.read_int("y", level.y);
 434                       level.vertical_flip = false;
 435                       reader.read_bool("flip", level.vertical_flip);
 436
 437                       levels.push_back(level);
 438                     }
 439
 440                   cur = lisp_cdr(cur);
 441                 }
 442             }
 443           else
 444             {
 445
 446             }
 447
 448           cur = lisp_cdr(cur);
 449         }
 450     }
 451
 452     lisp_free(root_obj);
 453     tux = new Tux(this);
 454 }
 455
 456 void WorldMap::get_level_title(Level& level)
 457 {
 458   /** get level's title */
 459   level.title = "<no title>";
 460
 461   FILE * fi;
 462   lisp_object_t* root_obj = 0;
 463   fi = fopen((datadir +  "/levels/" + level.name).c_str(), "r");
 464   if (fi == NULL)
 465   {
 466     perror((datadir +  "/levels/" + level.name).c_str());
 467     return;
 468   }
 469
 470   lisp_stream_t stream;
 471   lisp_stream_init_file (&stream, fi);
 472   root_obj = lisp_read (&stream);
 473
 474   if (root_obj->type == LISP_TYPE_EOF || root_obj->type == LISP_TYPE_PARSE_ERROR)
 475   {
 476     printf("World: Parse Error in file %s", level.name.c_str());
 477   }
 478
 479   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-level") == 0)
 480   {
 481     LispReader reader(lisp_cdr(root_obj));
 482     reader.read_string("name", level.title, true);
 483   }
 484
 485   lisp_free(root_obj);
 486
 487   fclose(fi);
 488 }
 489
 490 void
 491 WorldMap::on_escape_press()
 492 {
 493   // Show or hide the menu
 494   if(!Menu::current())
 495     Menu::set_current(worldmap_menu);
 496   else
 497     Menu::set_current(0);
 498 }
 499
 500 void
 501 WorldMap::get_input()
 502 {
 503   enter_level = false;
 504   input_direction = D_NONE;
 505
 506   SDL_Event event;
 507   while (SDL_PollEvent(&event))
 508     {
 509       if (Menu::current())
 510         {
 511           Menu::current()->event(event);
 512         }
 513       else
 514         {
 515           switch(event.type)
 516             {
 517             case SDL_QUIT:
 518               st_abort("Received window close", "");
 519               break;
 520
 521             case SDL_KEYDOWN:
 522               switch(event.key.keysym.sym)
 523                 {
 524                 case SDLK_ESCAPE:
 525                   on_escape_press();
 526                   break;
 527                 case SDLK_LCTRL:
 528                 case SDLK_RETURN:
 529                   enter_level = true;
 530                   break;
 531                 default:
 532                   break;
 533                 }
 534               break;
 535
 536             case SDL_JOYAXISMOTION:
 537               if (event.jaxis.axis == joystick_keymap.x_axis)
 538                 {
 539                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 540                     input_direction = D_WEST;
 541                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 542                     input_direction = D_EAST;
 543                 }
 544               else if (event.jaxis.axis == joystick_keymap.y_axis)
 545                 {
 546                   if (event.jaxis.value > joystick_keymap.dead_zone)
 547                     input_direction = D_SOUTH;
 548                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 549                     input_direction = D_NORTH;
 550                 }
 551               break;
 552
 553             case SDL_JOYBUTTONDOWN:
 554               if (event.jbutton.button == joystick_keymap.b_button)
 555                 enter_level = true;
 556               else if (event.jbutton.button == joystick_keymap.start_button)
 557                 on_escape_press();
 558               break;
 559
 560             default:
 561               break;
 562             }
 563         }
 564     }
 565
 566   if (!Menu::current())
 567     {
 568       Uint8 *keystate = SDL_GetKeyState(NULL);
 569
 570       if (keystate[SDLK_LEFT])
 571         input_direction = D_WEST;
 572       else if (keystate[SDLK_RIGHT])
 573         input_direction = D_EAST;
 574       else if (keystate[SDLK_UP])
 575         input_direction = D_NORTH;
 576       else if (keystate[SDLK_DOWN])
 577         input_direction = D_SOUTH;
 578     }
 579 }
 580
 581 Vector
 582 WorldMap::get_next_tile(Vector pos, Direction direction)
 583 {
 584   switch(direction)
 585     {
 586     case D_WEST:
 587       pos.x -= 1;
 588       break;
 589     case D_EAST:
 590       pos.x += 1;
 591       break;
 592     case D_NORTH:
 593       pos.y -= 1;
 594       break;
 595     case D_SOUTH:
 596       pos.y += 1;
 597       break;
 598     case D_NONE:
 599       break;
 600     }
 601   return pos;
 602 }
 603
 604 bool
 605 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 606 {
 607   *new_pos = get_next_tile(old_pos, direction);
 608
 609   if (!(new_pos->x >= 0 && new_pos->x < width
 610         && new_pos->y >= 0 && new_pos->y < height))
 611     { // New position is outsite the tilemap
 612       return false;
 613     }
 614   else
 615     { // Check if we the tile allows us to go to new_pos
 616       switch(direction)
 617         {
 618         case D_WEST:
 619           return (at(old_pos)->west && at(*new_pos)->east);
 620
 621         case D_EAST:
 622           return (at(old_pos)->east && at(*new_pos)->west);
 623
 624         case D_NORTH:
 625           return (at(old_pos)->north && at(*new_pos)->south);
 626
 627         case D_SOUTH:
 628           return (at(old_pos)->south && at(*new_pos)->north);
 629
 630         case D_NONE:
 631           assert(!"path_ok() can't work if direction is NONE");
 632         }
 633       return false;
 634     }
 635 }
 636
 637 void
 638 WorldMap::update(float delta)
 639 {
 640   if (enter_level && !tux->is_moving())
 641     {
 642       Level* level = at_level();
 643       if (level)
 644         {
 645           if (level->x == tux->get_tile_pos().x &&
 646               level->y == tux->get_tile_pos().y)
 647             {
 648               PlayerStatus old_player_status = player_status;
 649
 650               std::cout << "Enter the current level: " << level->name << std::endl;
 651               // do a shriking fade to the level
 652               shrink_fade(Vector((level->x*32 + 16 + offset.x),(level->y*32 + 16
 653                       + offset.y)), 500);
 654               GameSession session(datadir +  "/levels/" + level->name,
 655                                   ST_GL_LOAD_LEVEL_FILE, level->vertical_flip);
 656
 657               switch (session.run())
 658                 {
 659                 case GameSession::ES_LEVEL_FINISHED:
 660                   {
 661                     bool old_level_state = level->solved;
 662                     level->solved = true;
 663
 664                     if (session.get_current_sector()->player->got_power !=
 665                           session.get_current_sector()->player->NONE_POWER)
 666                       player_status.bonus = PlayerStatus::FLOWER_BONUS;
 667                     else if (session.get_current_sector()->player->size == BIG)
 668                       player_status.bonus = PlayerStatus::GROWUP_BONUS;
 669                     else
 670                       player_status.bonus = PlayerStatus::NO_BONUS;
 671
 672                     if (old_level_state != level->solved)
 673                       { // Try to detect the next direction to which we should walk
 674                         // FIXME: Mostly a hack
 675                         Direction dir = D_NONE;
 676
 677                         Tile* tile = at(tux->get_tile_pos());
 678
 679                         if (tile->north && tux->back_direction != D_NORTH)
 680                           dir = D_NORTH;
 681                         else if (tile->south && tux->back_direction != D_SOUTH)
 682                           dir = D_SOUTH;
 683                         else if (tile->east && tux->back_direction != D_EAST)
 684                           dir = D_EAST;
 685                         else if (tile->west && tux->back_direction != D_WEST)
 686                           dir = D_WEST;
 687
 688                         if (dir != D_NONE)
 689                           {
 690                             tux->set_direction(dir);
 691                             //tux->update(delta);
 692                           }
 693
 694                         std::cout << "Walk to dir: " << dir << std::endl;
 695                       }
 696
 697                     if (!level->extro_filename.empty())
 698                       {
 699                         MusicRef theme =
 700                           sound_manager->load_music(datadir + "/music/theme.mod");
 701                         sound_manager->play_music(theme);
 702                         // Display final credits and go back to the main menu
 703                         display_text_file(level->extro_filename, SCROLL_SPEED_MESSAGE);
 704                         display_text_file("CREDITS", SCROLL_SPEED_CREDITS);
 705                         quit = true;
 706                       }
 707                   }
 708
 709                   break;
 710                 case GameSession::ES_LEVEL_ABORT:
 711                   /* In case the player's abort the level, keep it using the old
 712                       status. But the minimum lives and no bonus. */
 713                   player_status.score = old_player_status.score;
 714                   player_status.distros = old_player_status.distros;
 715                   player_status.lives = std::min(old_player_status.lives, player_status.lives);
 716                   player_status.bonus = player_status.NO_BONUS;
 717                   break;
 718                 case GameSession::ES_GAME_OVER:
 719                 {
 720                   /* draw an end screen */
 721                   /* in the future, this should make a dialog a la SuperMario, asking
 722                   if the player wants to restart the world map with no score and from
 723                   level 1 */
 724                   char str[80];
 725
 726                   DrawingContext context;
 727                   context.draw_gradient(Color (0, 255, 0), Color (255, 0, 255),
 728                       LAYER_BACKGROUND0);
 729
 730                   context.draw_text_center(blue_text, _("GAMEOVER"),
 731                       Vector(0, 200), LAYER_FOREGROUND1);
 732
 733                   sprintf(str, _("SCORE: %d"), player_status.score);
 734                   context.draw_text_center(gold_text, str,
 735                       Vector(0, 224), LAYER_FOREGROUND1);
 736
 737                   sprintf(str, _("COINS: %d"), player_status.distros);
 738                   context.draw_text_center(gold_text, str,
 739                       Vector(0, screen->w - 32), LAYER_FOREGROUND1);
 740
 741                   context.do_drawing();
 742
 743                   SDL_Event event;
 744                   wait_for_event(event,2000,5000,true);
 745
 746                   quit = true;
 747                   player_status.reset();
 748                   break;
 749                 }
 750                 case GameSession::ES_NONE:
 751                   assert(false);
 752                   // Should never be reached
 753                   break;
 754                 }
 755
 756               sound_manager->play_music(song);
 757               Menu::set_current(0);
 758               if (!savegame_file.empty())
 759                 savegame(savegame_file);
 760               return;
 761             }
 762         }
 763       else
 764         {
 765           std::cout << "Nothing to enter at: "
 766                     << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y << std::endl;
 767         }
 768     }
 769   else
 770     {
 771       tux->action(delta);
 772       tux->set_direction(input_direction);
 773     }
 774
 775   Menu* menu = Menu::current();
 776   if(menu)
 777     {
 778       menu->action();
 779
 780       if(menu == worldmap_menu)
 781         {
 782           switch (worldmap_menu->check())
 783             {
 784             case MNID_RETURNWORLDMAP: // Return to game
 785               break;
 786             case MNID_QUITWORLDMAP: // Quit Worldmap
 787               quit = true;
 788               break;
 789             }
 790         }
 791       else if(menu == options_menu)
 792         {
 793           process_options_menu();
 794         }
 795     }
 796 }
 797
 798 Tile*
 799 WorldMap::at(Vector p)
 800 {
 801   assert(p.x >= 0
 802          && p.x < width
 803          && p.y >= 0
 804          && p.y < height);
 805
 806   int x = int(p.x);
 807   int y = int(p.y);
 808   return tile_manager->get(tilemap[width * y + x]);
 809 }
 810
 811 WorldMap::Level*
 812 WorldMap::at_level()
 813 {
 814   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 815     {
 816       if (i->x == tux->get_tile_pos().x &&
 817           i->y == tux->get_tile_pos().y)
 818         return &*i;
 819     }
 820
 821   return 0;
 822 }
 823
 824
 825 void
 826 WorldMap::draw(DrawingContext& context, const Vector& offset)
 827 {
 828   for(int y = 0; y < height; ++y)
 829     for(int x = 0; x < width; ++x)
 830       {
 831         Tile* tile = at(Vector(x, y));
 832         context.draw_surface(tile->sprite,
 833             Vector(x*32 + offset.x, y*32 + offset.y), LAYER_TILES);
 834       }
 835
 836   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 837     {
 838       if (i->solved)
 839         context.draw_surface(leveldot_green,
 840             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
 841       else
 842         context.draw_surface(leveldot_red,
 843             Vector(i->x*32 + offset.x, i->y*32 + offset.y), LAYER_TILES+1);
 844     }
 845
 846   tux->draw(context, offset);
 847   draw_status(context);
 848 }
 849
 850 void
 851 WorldMap::draw_status(DrawingContext& context)
 852 {
 853   char str[80];
 854   sprintf(str, " %d", player_status.score);
 855
 856   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LAYER_FOREGROUND1);
 857   context.draw_text(gold_text, str, Vector(96, 0), LAYER_FOREGROUND1);
 858
 859   sprintf(str, "%d", player_status.distros);
 860   context.draw_text(white_text, _("COINS"), Vector(screen->w/2 - 16*5, 0),
 861       LAYER_FOREGROUND1);
 862   context.draw_text(gold_text, str, Vector(screen->w/2 + (16*5)/2, 0),
 863         LAYER_FOREGROUND1);
 864
 865   if (player_status.lives >= 5)
 866     {
 867       sprintf(str, "%dx", player_status.lives);
 868       context.draw_text(gold_text, str,
 869           Vector(screen->w - gold_text->get_text_width(str) - tux_life->w, 0),
 870           LAYER_FOREGROUND1);
 871       context.draw_surface(tux_life, Vector(screen->w -
 872             gold_text->get_text_width("9"), 0), LAYER_FOREGROUND1);
 873     }
 874   else
 875     {
 876       for(int i= 0; i < player_status.lives; ++i)
 877         context.draw_surface(tux_life,
 878             Vector(screen->w - tux_life->w*4 + (tux_life->w*i), 0),
 879             LAYER_FOREGROUND1);
 880     }
 881   context.draw_text(white_text, _("LIVES"),
 882       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
 883       LAYER_FOREGROUND1);
 884
 885   if (!tux->is_moving())
 886     {
 887       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 888         {
 889           if (i->x == tux->get_tile_pos().x &&
 890               i->y == tux->get_tile_pos().y)
 891             {
 892               if(i->title == "")
 893                 get_level_title(*i);
 894
 895               context.draw_text(white_text, i->title,
 896                   Vector(screen->w/2 - white_text->get_text_width(i->title)/2,
 897                          screen->h - white_text->get_height() - 30),
 898                   LAYER_FOREGROUND1);
 899               break;
 900             }
 901         }
 902     }
 903 }
 904
 905 void
 906 WorldMap::display()
 907 {
 908   Menu::set_current(0);
 909
 910   quit = false;
 911
 912   song = sound_manager->load_music(datadir +  "/music/" + music);
 913   sound_manager->play_music(song);
 914
 915   unsigned int last_update_time;
 916   unsigned int update_time;
 917
 918   last_update_time = update_time = st_get_ticks();
 919
 920   DrawingContext context;
 921   while(!quit)
 922     {
 923       float delta = ((float)(update_time-last_update_time))/100.0;
 924
 925       delta *= 1.3f;
 926
 927       if (delta > 10.0f)
 928         delta = .3f;
 929
 930       last_update_time = update_time;
 931       update_time      = st_get_ticks();
 932
 933       Vector tux_pos = tux->get_pos();
 934       if (1)
 935         {
 936           offset.x = -tux_pos.x + screen->w/2;
 937           offset.y = -tux_pos.y + screen->h/2;
 938
 939           if (offset.x > 0) offset.x = 0;
 940           if (offset.y > 0) offset.y = 0;
 941
 942           if (offset.x < screen->w - width*32) offset.x = screen->w - width*32;
 943           if (offset.y < screen->h - height*32) offset.y = screen->h - height*32;
 944         }
 945
 946       draw(context, offset);
 947       get_input();
 948       update(delta);
 949
 950       if(Menu::current())
 951         {
 952           Menu::current()->draw(context);
 953           mouse_cursor->draw(context);
 954         }
 955
 956       context.do_drawing();
 957
 958       SDL_Delay(20);
 959     }
 960 }
 961
 962 void
 963 WorldMap::savegame(const std::string& filename)
 964 {
 965   if(filename != "")
 966     return;
 967
 968   std::cout << "savegame: " << filename << std::endl;
 969   std::ofstream out(filename.c_str());
 970
 971   int nb_solved_levels = 0;
 972   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 973     {
 974       if (i->solved)
 975         ++nb_solved_levels;
 976     }
 977
 978   out << "(supertux-savegame\n"
 979       << "  (version 1)\n"
 980       << "  (title  \"" << name << " - " << nb_solved_levels << "/" << levels.size() << "\")\n"
 981       << "  (map    \"" << map_filename << "\")\n"
 982       << "  (lives   " << player_status.lives << ")\n"
 983       << "  (score   " << player_status.score << ")\n"
 984       << "  (distros " << player_status.distros << ")\n"
 985       << "  (tux (x " << tux->get_tile_pos().x << ") (y " << tux->get_tile_pos().y << ")\n"
 986       << "       (back \"" << direction_to_string(tux->back_direction) << "\")\n"
 987       << "       (bonus \"" << bonus_to_string(player_status.bonus) <<  "\"))\n"
 988       << "  (levels\n";
 989
 990   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 991     {
 992       if (i->solved)
 993         {
 994           out << "     (level (name \"" << i->name << "\")\n"
 995               << "            (solved #t))\n";
 996         }
 997     }
 998
 999   out << "   )\n"
1000       << " )\n\n;; EOF ;;" << std::endl;
1001 }
1002
1003 void
1004 WorldMap::loadgame(const std::string& filename)
1005 {
1006   std::cout << "loadgame: " << filename << std::endl;
1007   savegame_file = filename;
1008   map_filename = "icyisland.stwm";
1009
1010   if (access(filename.c_str(), F_OK) != 0)
1011     {
1012     load_map();
1013     return;
1014     }
1015
1016   lisp_object_t* savegame = lisp_read_from_file(filename);
1017   if (!savegame)
1018     {
1019       std::cout << "WorldMap:loadgame: File not found: " << filename << std::endl;
1020       load_map();
1021       return;
1022     }
1023
1024   lisp_object_t* cur = savegame;
1025
1026   if (strcmp(lisp_symbol(lisp_car(cur)), "supertux-savegame") != 0)
1027     {
1028     load_map();
1029     return;
1030     }
1031
1032   cur = lisp_cdr(cur);
1033   LispReader reader(cur);
1034
1035   /* Get the Map filename and then load it before setting level settings */
1036   reader.read_string("map", map_filename);
1037   load_map();
1038
1039   reader.read_int("lives", player_status.lives);
1040   reader.read_int("score", player_status.score);
1041   reader.read_int("distros", player_status.distros);
1042
1043   if (player_status.lives < 0)
1044     player_status.lives = START_LIVES;
1045
1046   lisp_object_t* tux_cur = 0;
1047   if (reader.read_lisp("tux", tux_cur))
1048     {
1049       Vector p;
1050       std::string back_str = "none";
1051       std::string bonus_str = "none";
1052
1053       LispReader tux_reader(tux_cur);
1054       tux_reader.read_float("x", p.x);
1055       tux_reader.read_float("y", p.y);
1056       tux_reader.read_string("back", back_str);
1057       tux_reader.read_string("bonus", bonus_str);
1058
1059       player_status.bonus = string_to_bonus(bonus_str);
1060       tux->back_direction = string_to_direction(back_str);
1061       tux->set_tile_pos(p);
1062     }
1063
1064   lisp_object_t* level_cur = 0;
1065   if (reader.read_lisp("levels", level_cur))
1066     {
1067       while(level_cur)
1068         {
1069           lisp_object_t* sym  = lisp_car(lisp_car(level_cur));
1070           lisp_object_t* data = lisp_cdr(lisp_car(level_cur));
1071
1072           if (strcmp(lisp_symbol(sym), "level") == 0)
1073             {
1074               std::string name;
1075               bool solved = false;
1076
1077               LispReader level_reader(data);
1078               level_reader.read_string("name", name, true);
1079               level_reader.read_bool("solved", solved);
1080
1081               for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1082                 {
1083                   if (name == i->name)
1084                     i->solved = solved;
1085                 }
1086             }
1087
1088           level_cur = lisp_cdr(level_cur);
1089         }
1090     }
1091
1092   lisp_free(savegame);
1093 }
1094
1095 void
1096 WorldMap::loadmap(const std::string& filename)
1097 {
1098   savegame_file = "";
1099   map_filename = filename;
1100   load_map();
1101 }
1102
1103 } // namespace WorldMapNS
1104
1105 /* Local Variables: */
1106 /* mode:c++ */
1107 /* End: */
1108