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 <config.h>
  21
  22 #include <iostream>
  23 #include <fstream>
  24 #include <vector>
  25 #include <cassert>
  26 #include <unistd.h>
  27
  28 #include "app/globals.h"
  29 #include "video/surface.h"
  30 #include "video/screen.h"
  31 #include "video/drawing_context.h"
  32 #include "utils/lispreader.h"
  33 #include "utils/lispwriter.h"
  34 #include "special/frame_rate.h"
  35 #include "gameloop.h"
  36 #include "app/setup.h"
  37 #include "sector.h"
  38 #include "worldmap.h"
  39 #include "audio/sound_manager.h"
  40 #include "resources.h"
  41 #include "app/gettext.h"
  42 #include "misc.h"
  43
  44 #define map_message_TIME 2.8
  45
  46 Menu* worldmap_menu  = 0;
  47
  48 namespace WorldMapNS {
  49
  50 Direction reverse_dir(Direction direction)
  51 {
  52   switch(direction)
  53     {
  54     case D_WEST:
  55       return D_EAST;
  56     case D_EAST:
  57       return D_WEST;
  58     case D_NORTH:
  59       return D_SOUTH;
  60     case D_SOUTH:
  61       return D_NORTH;
  62     case D_NONE:
  63       return D_NONE;
  64     }
  65   return D_NONE;
  66 }
  67
  68 std::string
  69 direction_to_string(Direction direction)
  70 {
  71   switch(direction)
  72     {
  73     case D_WEST:
  74       return "west";
  75     case D_EAST:
  76       return "east";
  77     case D_NORTH:
  78       return "north";
  79     case D_SOUTH:
  80       return "south";
  81     default:
  82       return "none";
  83     }
  84 }
  85
  86 Direction
  87 string_to_direction(const std::string& directory)
  88 {
  89   if (directory == "west")
  90     return D_WEST;
  91   else if (directory == "east")
  92     return D_EAST;
  93   else if (directory == "north")
  94     return D_NORTH;
  95   else if (directory == "south")
  96     return D_SOUTH;
  97   else
  98     return D_NONE;
  99 }
 100
 101 TileManager::TileManager()
 102 {
 103   std::string stwt_filename = datadir +  "/images/worldmap/antarctica.stwt";
 104   lisp_object_t* root_obj = lisp_read_from_file(stwt_filename);
 105
 106   if (!root_obj)
 107     Termination::abort("Couldn't load file", stwt_filename);
 108
 109   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap-tiles") == 0)
 110     {
 111       lisp_object_t* cur = lisp_cdr(root_obj);
 112
 113       while(!lisp_nil_p(cur))
 114         {
 115           lisp_object_t* element = lisp_car(cur);
 116
 117           if (strcmp(lisp_symbol(lisp_car(element)), "tile") == 0)
 118             {
 119               int id = 0;
 120
 121               Tile* tile = new Tile;
 122               tile->north = tile->east = tile->south = tile->west = true;
 123               tile->stop  = true;
 124               tile->auto_walk = false;
 125
 126               LispReader reader(lisp_cdr(element));
 127               reader.read_int("id", id);
 128
 129               std::string temp;
 130               reader.read_string("possible-directions", temp);
 131               if(!temp.empty())
 132                 {
 133                 tile->north = tile->east = tile->south = tile->west = false;
 134                 if(temp.find("north") != std::string::npos)
 135                   tile->north = true;
 136                 if(temp.find("south") != std::string::npos)
 137                   tile->south = true;
 138                 if(temp.find("east") != std::string::npos)
 139                   tile->east = true;
 140                 if(temp.find("west") != std::string::npos)
 141                   tile->west = true;
 142                 }
 143
 144               /* For backward compatibility */
 145               reader.read_bool("north", tile->north);
 146               reader.read_bool("south", tile->south);
 147               reader.read_bool("west",  tile->west);
 148               reader.read_bool("east",  tile->east);
 149
 150               reader.read_bool("stop",  tile->stop);
 151               reader.read_bool("auto-walk",  tile->auto_walk);
 152
 153               reader.read_string("one-way", temp);
 154               tile->one_way = BOTH_WAYS;
 155               if(!temp.empty())
 156                 {
 157                 if(temp == "north-south")
 158                   tile->one_way = NORTH_SOUTH_WAY;
 159                 else if(temp == "south-north")
 160                   tile->one_way = SOUTH_NORTH_WAY;
 161                 else if(temp == "east-west")
 162                   tile->one_way = EAST_WEST_WAY;
 163                 else if(temp == "west-east")
 164                   tile->one_way = WEST_EAST_WAY;
 165                 }
 166
 167               std::vector<std::string> filenames;
 168               reader.read_string_vector("image", filenames);
 169
 170               if(filenames.size() == 0)
 171                 std::cerr << "Warning: no image specified for tile " << id
 172                           << ".\nIgnoring...\n" << std::endl;
 173
 174               for(int i = 0; static_cast<unsigned int>(i) < filenames.size(); i++)
 175                 {
 176                 Surface* image = new Surface(
 177                          datadir +  "/images/worldmap/" + filenames[i], true);
 178                 tile->images.push_back(image);
 179                 }
 180
 181               tile->anim_speed = 25;
 182               reader.read_int("anim-speed", tile->anim_speed);
 183
 184
 185               if (id >= int(tiles.size()))
 186                 tiles.resize(id+1);
 187
 188               tiles[id] = tile;
 189             }
 190           else
 191             {
 192               puts("Unhandled symbol");
 193             }
 194
 195           cur = lisp_cdr(cur);
 196         }
 197     }
 198   else
 199     {
 200       assert(0);
 201     }
 202
 203   lisp_free(root_obj);
 204 }
 205
 206 TileManager::~TileManager()
 207 {
 208   for(std::vector<Tile*>::iterator i = tiles.begin(); i != tiles.end(); ++i)
 209     delete *i;
 210 }
 211
 212 Tile*
 213 TileManager::get(int i)
 214 {
 215   assert(i >=0 && i < int(tiles.size()));
 216   return tiles[i];
 217 }
 218
 219 //---------------------------------------------------------------------------
 220
 221 Tux::Tux(WorldMap* worldmap_)
 222   : worldmap(worldmap_)
 223 {
 224   largetux_sprite = new Surface(datadir +  "/images/worldmap/tux.png", true);
 225   firetux_sprite = new Surface(datadir +  "/images/worldmap/firetux.png", true);
 226   smalltux_sprite = new Surface(datadir +  "/images/worldmap/smalltux.png", true);
 227
 228   offset = 0;
 229   moving = false;
 230   tile_pos.x = worldmap->get_start_x();
 231   tile_pos.y = worldmap->get_start_y();
 232   direction = D_NONE;
 233   input_direction = D_NONE;
 234 }
 235
 236 Tux::~Tux()
 237 {
 238   delete smalltux_sprite;
 239   delete firetux_sprite;
 240   delete largetux_sprite;
 241 }
 242
 243 void
 244 Tux::draw(DrawingContext& context, const Vector& offset)
 245 {
 246   Vector pos = get_pos();
 247   switch (player_status.bonus)
 248     {
 249     case PlayerStatus::GROWUP_BONUS:
 250       context.draw_surface(largetux_sprite,
 251           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 252       break;
 253     case PlayerStatus::FLOWER_BONUS:
 254       context.draw_surface(firetux_sprite,
 255           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 256       break;
 257     case PlayerStatus::NO_BONUS:
 258       context.draw_surface(smalltux_sprite,
 259           Vector(pos.x + offset.x, pos.y + offset.y - 10), LAYER_OBJECTS);
 260       break;
 261     }
 262 }
 263
 264
 265 Vector
 266 Tux::get_pos()
 267 {
 268   float x = tile_pos.x * 32;
 269   float y = tile_pos.y * 32;
 270
 271   switch(direction)
 272     {
 273     case D_WEST:
 274       x -= offset - 32;
 275       break;
 276     case D_EAST:
 277       x += offset - 32;
 278       break;
 279     case D_NORTH:
 280       y -= offset - 32;
 281       break;
 282     case D_SOUTH:
 283       y += offset - 32;
 284       break;
 285     case D_NONE:
 286       break;
 287     }
 288
 289   return Vector((int)x, (int)y);
 290 }
 291
 292 void
 293 Tux::stop()
 294 {
 295   offset = 0;
 296   direction = D_NONE;
 297   input_direction = D_NONE;
 298   moving = false;
 299 }
 300
 301 void
 302 Tux::set_direction(Direction dir)
 303 {
 304 input_direction = dir;
 305 }
 306
 307 void
 308 Tux::action(float delta)
 309 {
 310   if (!moving)
 311     {
 312       if (input_direction != D_NONE)
 313         {
 314           WorldMap::Level* level = worldmap->at_level();
 315
 316           // We got a new direction, so lets start walking when possible
 317           Vector next_tile;
 318           if ((!level || level->solved)
 319               && worldmap->path_ok(input_direction, tile_pos, &next_tile))
 320             {
 321               tile_pos = next_tile;
 322               moving = true;
 323               direction = input_direction;
 324               back_direction = reverse_dir(direction);
 325             }
 326           else if (input_direction == back_direction)
 327             {
 328               moving = true;
 329               direction = input_direction;
 330               tile_pos = worldmap->get_next_tile(tile_pos, direction);
 331               back_direction = reverse_dir(direction);
 332             }
 333         }
 334     }
 335   else
 336     {
 337       // Let tux walk a few pixels (20 pixel/sec)
 338       offset += 20.0f * delta;
 339
 340       if (offset > 32)
 341         { // We reached the next tile, so we check what to do now
 342           offset -= 32;
 343
 344           WorldMap::SpecialTile* special_tile = worldmap->at_special_tile();
 345           if(special_tile && special_tile->passive_message)
 346             {  // direction and the apply_action_ are opposites, since they "see"
 347                // directions in a different way
 348             if((direction == D_NORTH && special_tile->apply_action_south) ||
 349                (direction == D_SOUTH && special_tile->apply_action_north) ||
 350                (direction == D_WEST && special_tile->apply_action_east) ||
 351                (direction == D_EAST && special_tile->apply_action_west))
 352               {
 353               worldmap->passive_message = special_tile->map_message;
 354               worldmap->passive_message_timer.start(map_message_TIME);
 355               }
 356             }
 357
 358           if (worldmap->at(tile_pos)->stop ||
 359              (special_tile && !special_tile->passive_message) ||
 360               worldmap->at_level())
 361             {
 362               if(special_tile && !special_tile->map_message.empty() &&
 363                 !special_tile->passive_message)
 364                 worldmap->passive_message_timer.start(0);
 365               stop();
 366             }
 367           else
 368             {
 369               if (worldmap->at(tile_pos)->auto_walk || direction != input_direction)
 370                 { // Turn to a new direction
 371                   Tile* tile = worldmap->at(tile_pos);
 372
 373                   if(direction != input_direction &&
 374                      ((tile->north && input_direction == D_NORTH) ||
 375                      (tile->south && input_direction == D_SOUTH) ||
 376                      (tile->east && input_direction == D_EAST) ||
 377                      (tile->west && input_direction == D_WEST)))
 378                     {  // player has changed direction during auto-movement
 379                     direction = input_direction;
 380                     back_direction = reverse_dir(direction);
 381                     }
 382                   else if(direction != input_direction)
 383                     {  // player has changed to impossible tile
 384                       back_direction = reverse_dir(direction);
 385                       stop();
 386                     }
 387                   else
 388                     {
 389                     Direction dir = D_NONE;
 390
 391                     if (tile->north && back_direction != D_NORTH)
 392                       dir = D_NORTH;
 393                     else if (tile->south && back_direction != D_SOUTH)
 394                       dir = D_SOUTH;
 395                     else if (tile->east && back_direction != D_EAST)
 396                       dir = D_EAST;
 397                     else if (tile->west && back_direction != D_WEST)
 398                       dir = D_WEST;
 399
 400                     if (dir != D_NONE)
 401                       {
 402                       direction = dir;
 403                       input_direction = direction;
 404                       back_direction = reverse_dir(direction);
 405                       }
 406                     else
 407                       {
 408                       // Should never be reached if tiledata is good
 409                       stop();
 410                       return;
 411                       }
 412                     }
 413                   }
 414
 415               // Walk automatically to the next tile
 416               if(direction != D_NONE)
 417                 {
 418                 Vector next_tile;
 419                 if (worldmap->path_ok(direction, tile_pos, &next_tile))
 420                   {
 421                   tile_pos = next_tile;
 422                   }
 423                 else
 424                   {
 425                   puts("Tilemap data is buggy");
 426                   stop();
 427                   }
 428                 }
 429             }
 430         }
 431     }
 432 }
 433
 434 //---------------------------------------------------------------------------
 435 Tile::Tile()
 436 {
 437 }
 438
 439 Tile::~Tile()
 440 {
 441   for(std::vector<Surface*>::iterator i = images.begin(); i != images.end(); i++)
 442     delete *i;
 443 }
 444
 445
 446 void
 447 Tile::draw(DrawingContext& context, Vector pos)
 448 {
 449   // same code as from tile_manager.cpp draw_tile()
 450
 451   if(!images.size())
 452     return;
 453
 454   if(images.size() > 1)
 455     {
 456     size_t frame
 457       = ((global_frame_counter*25) / anim_speed) % images.size();
 458
 459     context.draw_surface(images[frame], pos, LAYER_TILES);
 460     }
 461   else if (images.size() == 1)
 462     {
 463     context.draw_surface(images[0], pos, LAYER_TILES);
 464     }
 465 }
 466
 467 //---------------------------------------------------------------------------
 468
 469 WorldMap::WorldMap()
 470 {
 471   tile_manager = new TileManager();
 472   //tux = new Tux(this);
 473
 474   width  = 20;
 475   height = 15;
 476
 477   start_x = 4;
 478   start_y = 5;
 479
 480   tux = new Tux(this);
 481
 482   leveldot_green = new Surface(datadir +  "/images/worldmap/leveldot_green.png", true);
 483   leveldot_red = new Surface(datadir +  "/images/worldmap/leveldot_red.png", true);
 484   messagedot   = new Surface(datadir +  "/images/worldmap/messagedot.png", true);
 485   teleporterdot   = new Surface(datadir +  "/images/worldmap/teleporterdot.png", true);
 486
 487   enter_level = false;
 488
 489   name = "<no title>";
 490   music = "SALCON.MOD";
 491
 492   global_frame_counter = 0;
 493
 494   total_stats.reset();
 495 }
 496
 497 WorldMap::~WorldMap()
 498 {
 499   delete tux;
 500   delete tile_manager;
 501
 502   delete leveldot_green;
 503   delete leveldot_red;
 504   delete messagedot;
 505   delete teleporterdot;
 506 }
 507
 508 // Don't forget to set map_filename before calling this
 509 void
 510 WorldMap::load_map()
 511 {
 512   lisp_object_t* root_obj = lisp_read_from_file(datadir + "/levels/worldmap/" + map_filename);
 513   if (!root_obj)
 514     Termination::abort("Couldn't load file", datadir + "/levels/worldmap/" + map_filename);
 515
 516   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap") == 0)
 517     {
 518       lisp_object_t* cur = lisp_cdr(root_obj);
 519
 520       while(!lisp_nil_p(cur))
 521         {
 522           lisp_object_t* element = lisp_car(cur);
 523
 524           if (strcmp(lisp_symbol(lisp_car(element)), "tilemap") == 0)
 525             {
 526               LispReader reader(lisp_cdr(element));
 527               reader.read_int("width",  width);
 528               reader.read_int("height", height);
 529               reader.read_int_vector("data", tilemap);
 530             }
 531           else if (strcmp(lisp_symbol(lisp_car(element)), "properties") == 0)
 532             {
 533               LispReader reader(lisp_cdr(element));
 534               reader.read_string("name", name, true);
 535               reader.read_string("music", music);
 536               reader.read_int("start_pos_x", start_x);
 537               reader.read_int("start_pos_y", start_y);
 538             }
 539           else if (strcmp(lisp_symbol(lisp_car(element)), "special-tiles") == 0 ||
 540                    strcmp(lisp_symbol(lisp_car(element)), "levels") == 0)
 541             {
 542               lisp_object_t* cur = lisp_cdr(element);
 543
 544               while(!lisp_nil_p(cur))
 545                 {
 546                   lisp_object_t* element = lisp_car(cur);
 547
 548                   if (strcmp(lisp_symbol(lisp_car(element)), "special-tile") == 0)
 549                     {
 550                       SpecialTile special_tile;
 551                       LispReader reader(lisp_cdr(element));
 552
 553                       reader.read_float("x", special_tile.pos.x);
 554                       reader.read_float("y", special_tile.pos.y);
 555
 556                       special_tile.map_message.erase();
 557                       reader.read_string("map-message", special_tile.map_message);
 558                       special_tile.passive_message = false;
 559                       reader.read_bool("passive-message", special_tile.passive_message);
 560
 561                       special_tile.teleport_dest = Vector(-1,-1);
 562                       reader.read_float("teleport-to-x", special_tile.teleport_dest.x);
 563                       reader.read_float("teleport-to-y", special_tile.teleport_dest.y);
 564
 565                       special_tile.invisible = false;
 566                       reader.read_bool("invisible-tile", special_tile.invisible);
 567
 568                       special_tile.apply_action_north = special_tile.apply_action_south =
 569                           special_tile.apply_action_east = special_tile.apply_action_west =
 570                           true;
 571
 572                       std::string apply_direction;
 573                       reader.read_string("apply-to-direction", apply_direction);
 574                       if(!apply_direction.empty())
 575                         {
 576                         special_tile.apply_action_north = special_tile.apply_action_south =
 577                             special_tile.apply_action_east = special_tile.apply_action_west =
 578                             false;
 579                         if(apply_direction.find("north") != std::string::npos)
 580                           special_tile.apply_action_north = true;
 581                         if(apply_direction.find("south") != std::string::npos)
 582                           special_tile.apply_action_south = true;
 583                         if(apply_direction.find("east") != std::string::npos)
 584                           special_tile.apply_action_east = true;
 585                         if(apply_direction.find("west") != std::string::npos)
 586                           special_tile.apply_action_west = true;
 587                         }
 588
 589                       special_tiles.push_back(special_tile);
 590                     }
 591
 592                   else if (strcmp(lisp_symbol(lisp_car(element)), "level") == 0)
 593                     {
 594                       Level level;
 595                       LispReader reader(lisp_cdr(element));
 596                       level.solved = false;
 597
 598                       level.north = true;
 599                       level.east  = true;
 600                       level.south = true;
 601                       level.west  = true;
 602
 603                       reader.read_string("extro-filename", level.extro_filename);
 604                       reader.read_string("next-worldmap", level.next_worldmap);
 605
 606                       level.quit_worldmap = false;
 607                       reader.read_bool("quit-worldmap", level.quit_worldmap);
 608
 609                       reader.read_string("name", level.name, true);
 610                       reader.read_float("x", level.pos.x);
 611                       reader.read_float("y", level.pos.y);
 612
 613                       level.auto_path = true;
 614                       reader.read_bool("auto-path", level.auto_path);
 615
 616                       level.vertical_flip = false;
 617                       reader.read_bool("vertical-flip", level.vertical_flip);
 618
 619                       levels.push_back(level);
 620                     }
 621
 622                   cur = lisp_cdr(cur);
 623                 }
 624             }
 625           else
 626             {
 627
 628             }
 629
 630           cur = lisp_cdr(cur);
 631         }
 632     }
 633
 634     lisp_free(root_obj);
 635
 636     delete tux;
 637     tux = new Tux(this);
 638 }
 639
 640 void WorldMap::get_level_title(Level& level)
 641 {
 642   /** get special_tile's title */
 643   level.title = "<no title>";
 644
 645   LispReader* reader = LispReader::load(datadir + "/levels/" + level.name, "supertux-level");
 646   if(!reader)
 647     {
 648     std::cerr << "Error: Could not open level file. Ignoring...\n";
 649     return;
 650     }
 651
 652   reader->read_string("name", level.title, true);
 653   delete reader;
 654 }
 655
 656 void WorldMap::calculate_total_stats()
 657 {
 658   total_stats.reset();
 659   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 660     {
 661     if (i->solved)
 662       {
 663       total_stats += i->statistics;
 664       }
 665     }
 666 }
 667
 668 void
 669 WorldMap::on_escape_press()
 670 {
 671   // Show or hide the menu
 672   if(!Menu::current())
 673     {
 674     Menu::set_current(worldmap_menu);
 675     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 676     }
 677   else
 678     Menu::set_current(0);
 679 }
 680
 681 void
 682 WorldMap::get_input()
 683 {
 684   enter_level = false;
 685   SDLKey key;
 686
 687   SDL_Event event;
 688   while (SDL_PollEvent(&event))
 689     {
 690       if (Menu::current())
 691         {
 692           Menu::current()->event(event);
 693         }
 694       else
 695         {
 696           switch(event.type)
 697             {
 698             case SDL_QUIT:
 699               Termination::abort("Received window close", "");
 700               break;
 701
 702             case SDL_KEYDOWN:
 703               key = event.key.keysym.sym;
 704
 705               if(key == SDLK_ESCAPE)
 706                 on_escape_press();
 707               else if(key == SDLK_RETURN || key == keymap.power)
 708                 enter_level = true;
 709               else if(key == SDLK_LEFT || key == keymap.power)
 710                 tux->set_direction(D_WEST);
 711               else if(key == SDLK_RIGHT || key == keymap.right)
 712                 tux->set_direction(D_EAST);
 713               else if(key == SDLK_UP || key == keymap.up ||
 714                 key == keymap.jump)
 715                   // there might be ppl that use jump as up key
 716                 tux->set_direction(D_NORTH);
 717               else if(key == SDLK_DOWN || key == keymap.down)
 718                 tux->set_direction(D_SOUTH);
 719               break;
 720
 721             case SDL_JOYHATMOTION:
 722               if(event.jhat.value & SDL_HAT_UP) {
 723                 tux->set_direction(D_NORTH);
 724               } else if(event.jhat.value & SDL_HAT_DOWN) {
 725                 tux->set_direction(D_SOUTH);
 726               } else if(event.jhat.value & SDL_HAT_LEFT) {
 727                 tux->set_direction(D_WEST);
 728               } else if(event.jhat.value & SDL_HAT_RIGHT) {
 729                 tux->set_direction(D_EAST);
 730               }
 731               break;
 732
 733             case SDL_JOYAXISMOTION:
 734               if (event.jaxis.axis == joystick_keymap.x_axis)
 735                 {
 736                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 737                     tux->set_direction(D_WEST);
 738                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 739                     tux->set_direction(D_EAST);
 740                 }
 741               else if (event.jaxis.axis == joystick_keymap.y_axis)
 742                 {
 743                   if (event.jaxis.value > joystick_keymap.dead_zone)
 744                     tux->set_direction(D_SOUTH);
 745                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 746                     tux->set_direction(D_NORTH);
 747                 }
 748               break;
 749
 750             case SDL_JOYBUTTONDOWN:
 751               if (event.jbutton.button == joystick_keymap.b_button)
 752                 enter_level = true;
 753               else if (event.jbutton.button == joystick_keymap.start_button)
 754                 on_escape_press();
 755               break;
 756
 757             default:
 758               break;
 759             }
 760         }
 761     }
 762 }
 763
 764 Vector
 765 WorldMap::get_next_tile(Vector pos, Direction direction)
 766 {
 767   switch(direction)
 768     {
 769     case D_WEST:
 770       pos.x -= 1;
 771       break;
 772     case D_EAST:
 773       pos.x += 1;
 774       break;
 775     case D_NORTH:
 776       pos.y -= 1;
 777       break;
 778     case D_SOUTH:
 779       pos.y += 1;
 780       break;
 781     case D_NONE:
 782       break;
 783     }
 784   return pos;
 785 }
 786
 787 bool
 788 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 789 {
 790   *new_pos = get_next_tile(old_pos, direction);
 791
 792   if (!(new_pos->x >= 0 && new_pos->x < width
 793         && new_pos->y >= 0 && new_pos->y < height))
 794     { // New position is outsite the tilemap
 795       return false;
 796     }
 797   else if(at(*new_pos)->one_way != BOTH_WAYS)
 798     {
 799 std::cerr << "one way only\n";
 800       if((at(*new_pos)->one_way == NORTH_SOUTH_WAY && direction != D_SOUTH) ||
 801          (at(*new_pos)->one_way == SOUTH_NORTH_WAY && direction != D_NORTH) ||
 802          (at(*new_pos)->one_way == EAST_WEST_WAY && direction != D_WEST) ||
 803          (at(*new_pos)->one_way == WEST_EAST_WAY && direction != D_EAST))
 804         return false;
 805       return true;
 806     }
 807   else
 808     { // Check if we the tile allows us to go to new_pos
 809       switch(direction)
 810         {
 811         case D_WEST:
 812           return (at(old_pos)->west && at(*new_pos)->east);
 813
 814         case D_EAST:
 815           return (at(old_pos)->east && at(*new_pos)->west);
 816
 817         case D_NORTH:
 818           return (at(old_pos)->north && at(*new_pos)->south);
 819
 820         case D_SOUTH:
 821           return (at(old_pos)->south && at(*new_pos)->north);
 822
 823         case D_NONE:
 824           assert(!"path_ok() can't work if direction is NONE");
 825         }
 826       return false;
 827     }
 828 }
 829
 830 void
 831 WorldMap::update(float delta)
 832 {
 833   if(!frame_timer.check()) {
 834     global_frame_counter++;
 835   }
 836
 837   if (enter_level && !tux->is_moving())
 838     {
 839       /* Check special tile action */
 840       SpecialTile* special_tile = at_special_tile();
 841       if(special_tile)
 842         {
 843         if (special_tile->teleport_dest != Vector(-1,-1))
 844           {
 845           // TODO: an animation, camera scrolling or a fading would be a nice touch
 846           SoundManager::get()->play_sound(IDToSound(SND_WARP));
 847           tux->back_direction = D_NONE;
 848           tux->set_tile_pos(special_tile->teleport_dest);
 849           SDL_Delay(1000);
 850           }
 851         }
 852
 853       /* Check level action */
 854       bool level_finished = true;
 855       Level* level = at_level();
 856       if (!level)
 857         {
 858         std::cout << "No level to enter at: "
 859           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y << std::endl;
 860         return;
 861         }
 862
 863
 864           if (level->pos == tux->get_tile_pos())
 865             {
 866               PlayerStatus old_player_status = player_status;
 867
 868               std::cout << "Enter the current level: " << level->name << std::endl;
 869               // do a shriking fade to the level
 870               shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),(level->pos.y*32 + 16
 871                       + offset.y)), 500);
 872               GameSession session(level->name,
 873                                   ST_GL_LOAD_LEVEL_FILE, level->vertical_flip,
 874                                   &level->statistics);
 875
 876               switch (session.run())
 877                 {
 878                 case GameSession::ES_LEVEL_FINISHED:
 879                   {
 880                     level_finished = true;
 881                     bool old_level_state = level->solved;
 882                     level->solved = true;
 883
 884                     // deal with statistics
 885                     level->statistics.merge(global_stats);
 886                     calculate_total_stats();
 887
 888                     if (session.get_current_sector()->player->got_power !=
 889                           session.get_current_sector()->player->NONE_POWER)
 890                       player_status.bonus = PlayerStatus::FLOWER_BONUS;
 891                     else if (session.get_current_sector()->player->size == BIG)
 892                       player_status.bonus = PlayerStatus::GROWUP_BONUS;
 893                     else
 894                       player_status.bonus = PlayerStatus::NO_BONUS;
 895
 896                     if (old_level_state != level->solved && level->auto_path)
 897                       { // Try to detect the next direction to which we should walk
 898                         // FIXME: Mostly a hack
 899                         Direction dir = D_NONE;
 900
 901                         Tile* tile = at(tux->get_tile_pos());
 902
 903                         if (tile->north && tux->back_direction != D_NORTH)
 904                           dir = D_NORTH;
 905                         else if (tile->south && tux->back_direction != D_SOUTH)
 906                           dir = D_SOUTH;
 907                         else if (tile->east && tux->back_direction != D_EAST)
 908                           dir = D_EAST;
 909                         else if (tile->west && tux->back_direction != D_WEST)
 910                           dir = D_WEST;
 911
 912                         if (dir != D_NONE)
 913                           {
 914                             tux->set_direction(dir);
 915                             //tux->update(delta);
 916                           }
 917
 918                         std::cout << "Walk to dir: " << dir << std::endl;
 919                       }
 920                   }
 921
 922                   break;
 923                 case GameSession::ES_LEVEL_ABORT:
 924                   level_finished = false;
 925                   /* In case the player's abort the level, keep it using the old
 926                       status. But the minimum lives and no bonus. */
 927                   player_status.distros = old_player_status.distros;
 928                   player_status.lives = std::min(old_player_status.lives, player_status.lives);
 929                   player_status.bonus = player_status.NO_BONUS;
 930
 931                   break;
 932                 case GameSession::ES_GAME_OVER:
 933                   {
 934                   level_finished = false;
 935                   /* draw an end screen */
 936                   /* TODO: in the future, this should make a dialog a la SuperMario, asking
 937                   if the player wants to restart the world map with no score and from
 938                   level 1 */
 939                   char str[80];
 940
 941                   DrawingContext context;
 942                   context.draw_gradient(Color (200,240,220), Color(200,200,220),
 943                       LAYER_BACKGROUND0);
 944
 945                   context.draw_text(blue_text, _("GAMEOVER"),
 946                       Vector(screen->w/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 947
 948                   sprintf(str, _("COINS: %d"), player_status.distros);
 949                   context.draw_text(gold_text, str,
 950                       Vector(screen->w/2, screen->w - 32), CENTER_ALLIGN, LAYER_FOREGROUND1);
 951
 952                   total_stats.draw_message_info(context, _("Total Statistics"));
 953
 954                   context.do_drawing();
 955
 956                   SDL_Event event;
 957                   wait_for_event(event,2000,6000,true);
 958
 959                   quit = true;
 960                   player_status.reset();
 961                   break;
 962                   }
 963                 case GameSession::ES_NONE:
 964                   assert(false);
 965                   // Should never be reached
 966                   break;
 967                 }
 968
 969               SoundManager::get()->play_music(song);
 970               Menu::set_current(0);
 971               if (!savegame_file.empty())
 972                 savegame(savegame_file);
 973             }
 974       /* The porpose of the next checking is that if the player lost
 975          the level (in case there is one), don't show anything */
 976       if(level_finished)
 977         {
 978         if (!level->extro_filename.empty())
 979           {
 980           // Display a text file
 981           display_text_file(level->extro_filename, SCROLL_SPEED_MESSAGE, white_big_text , white_text, white_small_text, blue_text );
 982           }
 983
 984         if (!level->next_worldmap.empty())
 985           {
 986           // Load given worldmap
 987           loadmap(level->next_worldmap);
 988           }
 989         if (level->quit_worldmap)
 990           quit = true;
 991         }
 992     }
 993   else
 994     {
 995       tux->action(delta);
 996 //      tux->set_direction(input_direction);
 997     }
 998
 999   Menu* menu = Menu::current();
1000   if(menu)
1001     {
1002       menu->action();
1003
1004       if(menu == worldmap_menu)
1005         {
1006           switch (worldmap_menu->check())
1007             {
1008             case MNID_RETURNWORLDMAP: // Return to game
1009               break;
1010             case MNID_QUITWORLDMAP: // Quit Worldmap
1011               quit = true;
1012               break;
1013             }
1014         }
1015       else if(menu == options_menu)
1016         {
1017           process_options_menu();
1018         }
1019     }
1020 }
1021
1022 Tile*
1023 WorldMap::at(Vector p)
1024 {
1025   assert(p.x >= 0
1026          && p.x < width
1027          && p.y >= 0
1028          && p.y < height);
1029
1030   int x = int(p.x);
1031   int y = int(p.y);
1032   return tile_manager->get(tilemap[width * y + x]);
1033 }
1034
1035 WorldMap::Level*
1036 WorldMap::at_level()
1037 {
1038   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1039     {
1040       if (i->pos == tux->get_tile_pos())
1041         return &*i;
1042     }
1043
1044   return 0;
1045 }
1046
1047 WorldMap::SpecialTile*
1048 WorldMap::at_special_tile()
1049 {
1050   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1051     {
1052       if (i->pos == tux->get_tile_pos())
1053         return &*i;
1054     }
1055
1056   return 0;
1057 }
1058
1059
1060 void
1061 WorldMap::draw(DrawingContext& context, const Vector& offset)
1062 {
1063   for(int y = 0; y < height; ++y)
1064     for(int x = 0; x < width; ++x)
1065       {
1066         Tile* tile = at(Vector(x, y));
1067         tile->draw(context, Vector(x*32 + offset.x, y*32 + offset.y));
1068       }
1069
1070   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1071     {
1072       if (i->solved)
1073         context.draw_surface(leveldot_green,
1074             Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1075       else
1076         context.draw_surface(leveldot_red,
1077             Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1078     }
1079
1080   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1081     {
1082       if(i->invisible)
1083         continue;
1084
1085       if (i->teleport_dest != Vector(-1, -1))
1086         context.draw_surface(teleporterdot,
1087                 Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1088
1089       else if (!i->map_message.empty() && !i->passive_message)
1090         context.draw_surface(messagedot,
1091                 Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1092     }
1093
1094   tux->draw(context, offset);
1095   draw_status(context);
1096 }
1097
1098 void
1099 WorldMap::draw_status(DrawingContext& context)
1100 {
1101   char str[80];
1102   sprintf(str, " %d", total_stats.get_points(SCORE_STAT));
1103
1104   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1105   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1106
1107   sprintf(str, "%d", player_status.distros);
1108   context.draw_text(white_text, _("COINS"), Vector(screen->w/2 - 16*5, 0),
1109       LEFT_ALLIGN, LAYER_FOREGROUND1);
1110   context.draw_text(gold_text, str, Vector(screen->w/2 + (16*5)/2, 0),
1111         LEFT_ALLIGN, LAYER_FOREGROUND1);
1112
1113   if (player_status.lives >= 5)
1114     {
1115       sprintf(str, "%dx", player_status.lives);
1116       context.draw_text(gold_text, str,
1117           Vector(screen->w - gold_text->get_text_width(str) - tux_life->w, 0),
1118           LEFT_ALLIGN, LAYER_FOREGROUND1);
1119       context.draw_surface(tux_life, Vector(screen->w -
1120             gold_text->get_text_width("9"), 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1121     }
1122   else
1123     {
1124       for(int i= 0; i < player_status.lives; ++i)
1125         context.draw_surface(tux_life,
1126             Vector(screen->w - tux_life->w*4 + (tux_life->w*i), 0),
1127             LAYER_FOREGROUND1);
1128     }
1129   context.draw_text(white_text, _("LIVES"),
1130       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
1131       LEFT_ALLIGN, LAYER_FOREGROUND1);
1132
1133   if (!tux->is_moving())
1134     {
1135       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1136         {
1137           if (i->pos == tux->get_tile_pos())
1138             {
1139               if(i->title == "")
1140                 get_level_title(*i);
1141
1142               context.draw_text(white_text, i->title,
1143                   Vector(screen->w/2,
1144                          screen->h - white_text->get_height() - 30),
1145                   CENTER_ALLIGN, LAYER_FOREGROUND1);
1146
1147               i->statistics.draw_worldmap_info(context);
1148               break;
1149             }
1150         }
1151       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1152         {
1153           if (i->pos == tux->get_tile_pos())
1154             {
1155                /* Display an in-map message in the map, if any as been selected */
1156               if(!i->map_message.empty() && !i->passive_message)
1157                 context.draw_text(gold_text, i->map_message,
1158                     Vector(screen->w/2,
1159                            screen->h - white_text->get_height() - 60),
1160                     CENTER_ALLIGN, LAYER_FOREGROUND1);
1161               break;
1162             }
1163         }
1164     }
1165   /* Display a passive message in the map, if needed */
1166   if(passive_message_timer.check())
1167     context.draw_text(gold_text, passive_message,
1168             Vector(screen->w/2, screen->h - white_text->get_height() - 60),
1169             CENTER_ALLIGN, LAYER_FOREGROUND1);
1170 }
1171
1172 void
1173 WorldMap::display()
1174 {
1175   Menu::set_current(0);
1176
1177   quit = false;
1178
1179   song = SoundManager::get()->load_music(datadir +  "/music/" + music);
1180   SoundManager::get()->play_music(song);
1181
1182   FrameRate frame_rate(10);
1183   frame_rate.set_frame_limit(false);
1184
1185   frame_rate.start();
1186   frame_timer.start(.25, true);
1187
1188   DrawingContext context;
1189   while(!quit)
1190     {
1191       float delta = frame_rate.get();
1192
1193       delta *= 1.3f;
1194
1195       if (delta > 10.0f)
1196         delta = .3f;
1197
1198       frame_rate.update();
1199
1200       Vector tux_pos = tux->get_pos();
1201       if (1)
1202         {
1203           offset.x = -tux_pos.x + screen->w/2;
1204           offset.y = -tux_pos.y + screen->h/2;
1205
1206           if (offset.x > 0) offset.x = 0;
1207           if (offset.y > 0) offset.y = 0;
1208
1209           if (offset.x < screen->w - width*32) offset.x = screen->w - width*32;
1210           if (offset.y < screen->h - height*32) offset.y = screen->h - height*32;
1211         }
1212
1213       draw(context, offset);
1214       get_input();
1215       update(delta);
1216
1217       if(Menu::current())
1218         {
1219           Menu::current()->draw(context);
1220           mouse_cursor->draw(context);
1221         }
1222
1223       context.do_drawing();
1224
1225       SDL_Delay(20);
1226     }
1227 }
1228
1229 void
1230 WorldMap::savegame(const std::string& filename)
1231 {
1232   if(filename == "")
1233     return;
1234
1235   std::cout << "savegame: " << filename << std::endl;
1236
1237    std::ofstream file(filename.c_str(), std::ios::out);
1238    LispWriter* writer = new LispWriter(file);
1239
1240   int nb_solved_levels = 0, total_levels = 0;
1241   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1242     {
1243       ++total_levels;
1244       if (i->solved)
1245         ++nb_solved_levels;
1246     }
1247   char nb_solved_levels_str[80], total_levels_str[80];
1248   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1249   sprintf(total_levels_str, "%d", total_levels);
1250
1251   writer->write_comment("Worldmap save file");
1252
1253   writer->start_list("supertux-savegame");
1254
1255   writer->write_int("version", 1);
1256   writer->write_string("title", std::string(name + " - " + nb_solved_levels_str + "/" + total_levels_str));
1257   writer->write_string("map", map_filename);
1258   writer->write_int("lives", player_status.lives);
1259   writer->write_int("distros", player_status.lives);
1260   writer->write_int("max-score-multiplier", player_status.max_score_multiplier);
1261
1262   writer->start_list("tux");
1263
1264   writer->write_float("x", tux->get_tile_pos().x);
1265   writer->write_float("y", tux->get_tile_pos().y);
1266   writer->write_string("back", direction_to_string(tux->back_direction));
1267   writer->write_string("bonus", bonus_to_string(player_status.bonus));
1268
1269   writer->end_list("tux");
1270
1271   writer->start_list("levels");
1272
1273   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1274     {
1275       if (i->solved)
1276         {
1277         writer->start_list("level");
1278
1279         writer->write_string("name", i->name);
1280         writer->write_bool("solved", true);
1281         i->statistics.write(*writer);
1282
1283         writer->end_list("level");
1284         }
1285     }
1286
1287   writer->end_list("levels");
1288
1289   writer->end_list("supertux-savegame");
1290 }
1291
1292 void
1293 WorldMap::loadgame(const std::string& filename)
1294 {
1295   std::cout << "loadgame: " << filename << std::endl;
1296   savegame_file = filename;
1297
1298   if (access(filename.c_str(), F_OK) != 0)
1299     {
1300     load_map();
1301
1302     player_status.reset();
1303
1304     return;
1305     }
1306
1307   lisp_object_t* savegame = lisp_read_from_file(filename);
1308   if (!savegame)
1309     {
1310       std::cout << "WorldMap:loadgame: File not found: " << filename << std::endl;
1311       load_map();
1312       return;
1313     }
1314
1315   lisp_object_t* cur = savegame;
1316
1317   if (strcmp(lisp_symbol(lisp_car(cur)), "supertux-savegame") != 0)
1318     {
1319     load_map();
1320     return;
1321     }
1322
1323   cur = lisp_cdr(cur);
1324   LispReader reader(cur);
1325
1326   /* Get the Map filename and then load it before setting level settings */
1327   std::string cur_map_filename = map_filename;
1328   reader.read_string("map", map_filename);
1329 //  if(cur_map_filename != map_filename)
1330     load_map();
1331
1332   reader.read_int("lives", player_status.lives);
1333   reader.read_int("distros", player_status.distros);
1334   reader.read_int("max-score-multiplier", player_status.max_score_multiplier);
1335
1336   if (player_status.lives < 0)
1337     player_status.lives = START_LIVES;
1338
1339   lisp_object_t* tux_cur = 0;
1340   if (reader.read_lisp("tux", tux_cur))
1341     {
1342       Vector p;
1343       std::string back_str = "none";
1344       std::string bonus_str = "none";
1345
1346       LispReader tux_reader(tux_cur);
1347       tux_reader.read_float("x", p.x);
1348       tux_reader.read_float("y", p.y);
1349       tux_reader.read_string("back", back_str);
1350       tux_reader.read_string("bonus", bonus_str);
1351
1352       player_status.bonus = string_to_bonus(bonus_str);
1353       tux->back_direction = string_to_direction(back_str);
1354       tux->set_tile_pos(p);
1355     }
1356
1357   lisp_object_t* level_cur = 0;
1358   if (reader.read_lisp("levels", level_cur))
1359     {
1360       while(level_cur)
1361         {
1362           lisp_object_t* sym  = lisp_car(lisp_car(level_cur));
1363           lisp_object_t* data = lisp_cdr(lisp_car(level_cur));
1364
1365           if (strcmp(lisp_symbol(sym), "level") == 0)
1366             {
1367               std::string name;
1368               bool solved = false;
1369
1370               LispReader level_reader(data);
1371               level_reader.read_string("name", name);
1372               level_reader.read_bool("solved", solved);
1373
1374               for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1375                 {
1376                   if (name == i->name)
1377                     {
1378                     i->solved = solved;
1379                     i->statistics.parse(level_reader);
1380                     break;
1381                     }
1382                 }
1383             }
1384
1385           level_cur = lisp_cdr(level_cur);
1386         }
1387     }
1388
1389   lisp_free(savegame);
1390
1391   calculate_total_stats();
1392 }
1393
1394 void
1395 WorldMap::loadmap(const std::string& filename)
1396 {
1397   savegame_file = "";
1398   map_filename = filename;
1399   load_map();
1400 }
1401
1402 } // namespace WorldMapNS
1403
1404 /* Local Variables: */
1405 /* mode:c++ */
1406 /* End: */
1407