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