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_speed = 25;
 183               reader.read_int("anim-speed", tile->anim_speed);
 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
 458       = ((global_frame_counter*25) / anim_speed) % images.size();
 459
 460     context.draw_surface(images[frame], pos, LAYER_TILES);
 461     }
 462   else if (images.size() == 1)
 463     {
 464     context.draw_surface(images[0], pos, LAYER_TILES);
 465     }
 466 }
 467
 468 //---------------------------------------------------------------------------
 469
 470 WorldMap::WorldMap()
 471 {
 472   tile_manager = new TileManager();
 473   //tux = new Tux(this);
 474
 475   width  = 20;
 476   height = 15;
 477
 478   start_x = 4;
 479   start_y = 5;
 480
 481   tux = new Tux(this);
 482
 483   leveldot_green = new Surface(datadir +  "/images/worldmap/leveldot_green.png", true);
 484   leveldot_red = new Surface(datadir +  "/images/worldmap/leveldot_red.png", true);
 485   messagedot   = new Surface(datadir +  "/images/worldmap/messagedot.png", true);
 486   teleporterdot   = new Surface(datadir +  "/images/worldmap/teleporterdot.png", true);
 487
 488   enter_level = false;
 489
 490   name = "<no title>";
 491   music = "SALCON.MOD";
 492
 493   global_frame_counter = 0;
 494
 495   total_stats.reset();
 496 }
 497
 498 WorldMap::~WorldMap()
 499 {
 500   delete tux;
 501   delete tile_manager;
 502
 503   delete leveldot_green;
 504   delete leveldot_red;
 505   delete messagedot;
 506   delete teleporterdot;
 507 }
 508
 509 // Don't forget to set map_filename before calling this
 510 void
 511 WorldMap::load_map()
 512 {
 513   lisp_object_t* root_obj = lisp_read_from_file(datadir + "/levels/worldmap/" + map_filename);
 514   if (!root_obj)
 515     Termination::abort("Couldn't load file", datadir + "/levels/worldmap/" + map_filename);
 516
 517   if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap") == 0)
 518     {
 519       lisp_object_t* cur = lisp_cdr(root_obj);
 520
 521       while(!lisp_nil_p(cur))
 522         {
 523           lisp_object_t* element = lisp_car(cur);
 524
 525           if (strcmp(lisp_symbol(lisp_car(element)), "tilemap") == 0)
 526             {
 527               LispReader reader(lisp_cdr(element));
 528               reader.read_int("width",  width);
 529               reader.read_int("height", height);
 530               reader.read_int_vector("data", tilemap);
 531             }
 532           else if (strcmp(lisp_symbol(lisp_car(element)), "properties") == 0)
 533             {
 534               LispReader reader(lisp_cdr(element));
 535               reader.read_string("name", name, true);
 536               reader.read_string("music", music);
 537               reader.read_int("start_pos_x", start_x);
 538               reader.read_int("start_pos_y", start_y);
 539             }
 540           else if (strcmp(lisp_symbol(lisp_car(element)), "special-tiles") == 0 ||
 541                    strcmp(lisp_symbol(lisp_car(element)), "levels") == 0)
 542             {
 543               lisp_object_t* cur = lisp_cdr(element);
 544
 545               while(!lisp_nil_p(cur))
 546                 {
 547                   lisp_object_t* element = lisp_car(cur);
 548
 549                   if (strcmp(lisp_symbol(lisp_car(element)), "special-tile") == 0)
 550                     {
 551                       SpecialTile special_tile;
 552                       LispReader reader(lisp_cdr(element));
 553
 554                       reader.read_float("x", special_tile.pos.x);
 555                       reader.read_float("y", special_tile.pos.y);
 556
 557                       special_tile.map_message.erase();
 558                       reader.read_string("map-message", special_tile.map_message);
 559                       special_tile.passive_message = false;
 560                       reader.read_bool("passive-message", special_tile.passive_message);
 561
 562                       special_tile.teleport_dest = Vector(-1,-1);
 563                       reader.read_float("teleport-to-x", special_tile.teleport_dest.x);
 564                       reader.read_float("teleport-to-y", special_tile.teleport_dest.y);
 565
 566                       special_tile.invisible = false;
 567                       reader.read_bool("invisible-tile", special_tile.invisible);
 568
 569                       special_tile.apply_action_north = special_tile.apply_action_south =
 570                           special_tile.apply_action_east = special_tile.apply_action_west =
 571                           true;
 572
 573                       std::string apply_direction;
 574                       reader.read_string("apply-to-direction", apply_direction);
 575                       if(!apply_direction.empty())
 576                         {
 577                         special_tile.apply_action_north = special_tile.apply_action_south =
 578                             special_tile.apply_action_east = special_tile.apply_action_west =
 579                             false;
 580                         if(apply_direction.find("north") != std::string::npos)
 581                           special_tile.apply_action_north = true;
 582                         if(apply_direction.find("south") != std::string::npos)
 583                           special_tile.apply_action_south = true;
 584                         if(apply_direction.find("east") != std::string::npos)
 585                           special_tile.apply_action_east = true;
 586                         if(apply_direction.find("west") != std::string::npos)
 587                           special_tile.apply_action_west = true;
 588                         }
 589
 590                       special_tiles.push_back(special_tile);
 591                     }
 592
 593                   else if (strcmp(lisp_symbol(lisp_car(element)), "level") == 0)
 594                     {
 595                       Level level;
 596                       LispReader reader(lisp_cdr(element));
 597                       level.solved = false;
 598
 599                       level.north = true;
 600                       level.east  = true;
 601                       level.south = true;
 602                       level.west  = true;
 603
 604                       reader.read_string("extro-filename", level.extro_filename);
 605                       reader.read_string("next-worldmap", level.next_worldmap);
 606
 607                       level.quit_worldmap = false;
 608                       reader.read_bool("quit-worldmap", level.quit_worldmap);
 609
 610                       reader.read_string("name", level.name, true);
 611                       reader.read_float("x", level.pos.x);
 612                       reader.read_float("y", level.pos.y);
 613
 614                       level.auto_path = true;
 615                       reader.read_bool("auto-path", level.auto_path);
 616
 617                       level.vertical_flip = false;
 618                       reader.read_bool("vertical-flip", level.vertical_flip);
 619
 620                       levels.push_back(level);
 621                     }
 622
 623                   cur = lisp_cdr(cur);
 624                 }
 625             }
 626           else
 627             {
 628
 629             }
 630
 631           cur = lisp_cdr(cur);
 632         }
 633     }
 634
 635     lisp_free(root_obj);
 636
 637     delete tux;
 638     tux = new Tux(this);
 639 }
 640
 641 void WorldMap::get_level_title(Level& level)
 642 {
 643   /** get special_tile's title */
 644   level.title = "<no title>";
 645
 646   LispReader* reader = LispReader::load(datadir + "/levels/" + level.name, "supertux-level");
 647   if(!reader)
 648     {
 649     std::cerr << "Error: Could not open level file. Ignoring...\n";
 650     return;
 651     }
 652
 653   reader->read_string("name", level.title, true);
 654   delete reader;
 655 }
 656
 657 void WorldMap::calculate_total_stats()
 658 {
 659   total_stats.reset();
 660   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
 661     {
 662     if (i->solved)
 663       {
 664       total_stats += i->statistics;
 665       }
 666     }
 667 }
 668
 669 void
 670 WorldMap::on_escape_press()
 671 {
 672   // Show or hide the menu
 673   if(!Menu::current())
 674     {
 675     Menu::set_current(worldmap_menu);
 676     tux->set_direction(D_NONE);  // stop tux movement when menu is called
 677     }
 678   else
 679     Menu::set_current(0);
 680 }
 681
 682 void
 683 WorldMap::get_input()
 684 {
 685   enter_level = false;
 686   SDLKey key;
 687
 688   SDL_Event event;
 689   while (SDL_PollEvent(&event))
 690     {
 691       if (Menu::current())
 692         {
 693           Menu::current()->event(event);
 694         }
 695       else
 696         {
 697           switch(event.type)
 698             {
 699             case SDL_QUIT:
 700               Termination::abort("Received window close", "");
 701               break;
 702
 703             case SDL_KEYDOWN:
 704               key = event.key.keysym.sym;
 705
 706               if(key == SDLK_ESCAPE)
 707                 on_escape_press();
 708               else if(key == SDLK_RETURN || key == keymap.power)
 709                 enter_level = true;
 710               else if(key == SDLK_LEFT || key == keymap.power)
 711                 tux->set_direction(D_WEST);
 712               else if(key == SDLK_RIGHT || key == keymap.right)
 713                 tux->set_direction(D_EAST);
 714               else if(key == SDLK_UP || key == keymap.up ||
 715                 key == keymap.jump)
 716                   // there might be ppl that use jump as up key
 717                 tux->set_direction(D_NORTH);
 718               else if(key == SDLK_DOWN || key == keymap.down)
 719                 tux->set_direction(D_SOUTH);
 720               break;
 721
 722             case SDL_JOYHATMOTION:
 723               if(event.jhat.value & SDL_HAT_UP) {
 724                 tux->set_direction(D_NORTH);
 725               } else if(event.jhat.value & SDL_HAT_DOWN) {
 726                 tux->set_direction(D_SOUTH);
 727               } else if(event.jhat.value & SDL_HAT_LEFT) {
 728                 tux->set_direction(D_WEST);
 729               } else if(event.jhat.value & SDL_HAT_RIGHT) {
 730                 tux->set_direction(D_EAST);
 731               }
 732               break;
 733
 734             case SDL_JOYAXISMOTION:
 735               if (event.jaxis.axis == joystick_keymap.x_axis)
 736                 {
 737                   if (event.jaxis.value < -joystick_keymap.dead_zone)
 738                     tux->set_direction(D_WEST);
 739                   else if (event.jaxis.value > joystick_keymap.dead_zone)
 740                     tux->set_direction(D_EAST);
 741                 }
 742               else if (event.jaxis.axis == joystick_keymap.y_axis)
 743                 {
 744                   if (event.jaxis.value > joystick_keymap.dead_zone)
 745                     tux->set_direction(D_SOUTH);
 746                   else if (event.jaxis.value < -joystick_keymap.dead_zone)
 747                     tux->set_direction(D_NORTH);
 748                 }
 749               break;
 750
 751             case SDL_JOYBUTTONDOWN:
 752               if (event.jbutton.button == joystick_keymap.b_button)
 753                 enter_level = true;
 754               else if (event.jbutton.button == joystick_keymap.start_button)
 755                 on_escape_press();
 756               break;
 757
 758             default:
 759               break;
 760             }
 761         }
 762     }
 763 }
 764
 765 Vector
 766 WorldMap::get_next_tile(Vector pos, Direction direction)
 767 {
 768   switch(direction)
 769     {
 770     case D_WEST:
 771       pos.x -= 1;
 772       break;
 773     case D_EAST:
 774       pos.x += 1;
 775       break;
 776     case D_NORTH:
 777       pos.y -= 1;
 778       break;
 779     case D_SOUTH:
 780       pos.y += 1;
 781       break;
 782     case D_NONE:
 783       break;
 784     }
 785   return pos;
 786 }
 787
 788 bool
 789 WorldMap::path_ok(Direction direction, Vector old_pos, Vector* new_pos)
 790 {
 791   *new_pos = get_next_tile(old_pos, direction);
 792
 793   if (!(new_pos->x >= 0 && new_pos->x < width
 794         && new_pos->y >= 0 && new_pos->y < height))
 795     { // New position is outsite the tilemap
 796       return false;
 797     }
 798   else if(at(*new_pos)->one_way != BOTH_WAYS)
 799     {
 800 std::cerr << "one way only\n";
 801       if((at(*new_pos)->one_way == NORTH_SOUTH_WAY && direction != D_SOUTH) ||
 802          (at(*new_pos)->one_way == SOUTH_NORTH_WAY && direction != D_NORTH) ||
 803          (at(*new_pos)->one_way == EAST_WEST_WAY && direction != D_WEST) ||
 804          (at(*new_pos)->one_way == WEST_EAST_WAY && direction != D_EAST))
 805         return false;
 806       return true;
 807     }
 808   else
 809     { // Check if we the tile allows us to go to new_pos
 810       switch(direction)
 811         {
 812         case D_WEST:
 813           return (at(old_pos)->west && at(*new_pos)->east);
 814
 815         case D_EAST:
 816           return (at(old_pos)->east && at(*new_pos)->west);
 817
 818         case D_NORTH:
 819           return (at(old_pos)->north && at(*new_pos)->south);
 820
 821         case D_SOUTH:
 822           return (at(old_pos)->south && at(*new_pos)->north);
 823
 824         case D_NONE:
 825           assert(!"path_ok() can't work if direction is NONE");
 826         }
 827       return false;
 828     }
 829 }
 830
 831 void
 832 WorldMap::update(float delta)
 833 {
 834   if(!frame_timer.check()) {
 835     global_frame_counter++;
 836   }
 837
 838   if (enter_level && !tux->is_moving())
 839     {
 840       /* Check special tile action */
 841       SpecialTile* special_tile = at_special_tile();
 842       if(special_tile)
 843         {
 844         if (special_tile->teleport_dest != Vector(-1,-1))
 845           {
 846           // TODO: an animation, camera scrolling or a fading would be a nice touch
 847           SoundManager::get()->play_sound(IDToSound(SND_WARP));
 848           tux->back_direction = D_NONE;
 849           tux->set_tile_pos(special_tile->teleport_dest);
 850           SDL_Delay(1000);
 851           }
 852         }
 853
 854       /* Check level action */
 855       bool level_finished = true;
 856       Level* level = at_level();
 857       if (!level)
 858         {
 859         std::cout << "No level to enter at: "
 860           << tux->get_tile_pos().x << ", " << tux->get_tile_pos().y << std::endl;
 861         return;
 862         }
 863
 864
 865           if (level->pos == tux->get_tile_pos())
 866             {
 867               PlayerStatus old_player_status = player_status;
 868
 869               std::cout << "Enter the current level: " << level->name << std::endl;
 870               // do a shriking fade to the level
 871               shrink_fade(Vector((level->pos.x*32 + 16 + offset.x),(level->pos.y*32 + 16
 872                       + offset.y)), 500);
 873               GameSession session(level->name,
 874                                   ST_GL_LOAD_LEVEL_FILE, level->vertical_flip,
 875                                   &level->statistics);
 876
 877               switch (session.run())
 878                 {
 879                 case GameSession::ES_LEVEL_FINISHED:
 880                   {
 881                     level_finished = true;
 882                     bool old_level_state = level->solved;
 883                     level->solved = true;
 884
 885                     // deal with statistics
 886                     level->statistics.merge(global_stats);
 887                     calculate_total_stats();
 888
 889                     if (session.get_current_sector()->player->got_power !=
 890                           session.get_current_sector()->player->NONE_POWER)
 891                       player_status.bonus = PlayerStatus::FLOWER_BONUS;
 892                     else if (session.get_current_sector()->player->size == BIG)
 893                       player_status.bonus = PlayerStatus::GROWUP_BONUS;
 894                     else
 895                       player_status.bonus = PlayerStatus::NO_BONUS;
 896
 897                     if (old_level_state != level->solved && level->auto_path)
 898                       { // Try to detect the next direction to which we should walk
 899                         // FIXME: Mostly a hack
 900                         Direction dir = D_NONE;
 901
 902                         Tile* tile = at(tux->get_tile_pos());
 903
 904                         if (tile->north && tux->back_direction != D_NORTH)
 905                           dir = D_NORTH;
 906                         else if (tile->south && tux->back_direction != D_SOUTH)
 907                           dir = D_SOUTH;
 908                         else if (tile->east && tux->back_direction != D_EAST)
 909                           dir = D_EAST;
 910                         else if (tile->west && tux->back_direction != D_WEST)
 911                           dir = D_WEST;
 912
 913                         if (dir != D_NONE)
 914                           {
 915                             tux->set_direction(dir);
 916                             //tux->update(delta);
 917                           }
 918
 919                         std::cout << "Walk to dir: " << dir << std::endl;
 920                       }
 921                   }
 922
 923                   break;
 924                 case GameSession::ES_LEVEL_ABORT:
 925                   level_finished = false;
 926                   /* In case the player's abort the level, keep it using the old
 927                       status. But the minimum lives and no bonus. */
 928                   player_status.distros = old_player_status.distros;
 929                   player_status.lives = std::min(old_player_status.lives, player_status.lives);
 930                   player_status.bonus = player_status.NO_BONUS;
 931
 932                   break;
 933                 case GameSession::ES_GAME_OVER:
 934                   {
 935                   level_finished = false;
 936                   /* draw an end screen */
 937                   /* TODO: in the future, this should make a dialog a la SuperMario, asking
 938                   if the player wants to restart the world map with no score and from
 939                   level 1 */
 940                   char str[80];
 941
 942                   DrawingContext context;
 943                   context.draw_gradient(Color (200,240,220), Color(200,200,220),
 944                       LAYER_BACKGROUND0);
 945
 946                   context.draw_text(blue_text, _("GAMEOVER"),
 947                       Vector(screen->w/2, 200), CENTER_ALLIGN, LAYER_FOREGROUND1);
 948
 949                   sprintf(str, _("COINS: %d"), player_status.distros);
 950                   context.draw_text(gold_text, str,
 951                       Vector(screen->w/2, screen->w - 32), CENTER_ALLIGN, LAYER_FOREGROUND1);
 952
 953                   total_stats.draw_message_info(context, _("Total Statistics"));
 954
 955                   context.do_drawing();
 956
 957                   SDL_Event event;
 958                   wait_for_event(event,2000,6000,true);
 959
 960                   quit = true;
 961                   player_status.reset();
 962                   break;
 963                   }
 964                 case GameSession::ES_NONE:
 965                   assert(false);
 966                   // Should never be reached
 967                   break;
 968                 }
 969
 970               SoundManager::get()->play_music(song);
 971               Menu::set_current(0);
 972               if (!savegame_file.empty())
 973                 savegame(savegame_file);
 974             }
 975       /* The porpose of the next checking is that if the player lost
 976          the level (in case there is one), don't show anything */
 977       if(level_finished)
 978         {
 979         if (!level->extro_filename.empty())
 980           {
 981           // Display a text file
 982           display_text_file(level->extro_filename, SCROLL_SPEED_MESSAGE, white_big_text , white_text, white_small_text, blue_text );
 983           }
 984
 985         if (!level->next_worldmap.empty())
 986           {
 987           // Load given worldmap
 988           loadmap(level->next_worldmap);
 989           }
 990         if (level->quit_worldmap)
 991           quit = true;
 992         }
 993     }
 994   else
 995     {
 996       tux->action(delta);
 997 //      tux->set_direction(input_direction);
 998     }
 999
1000   Menu* menu = Menu::current();
1001   if(menu)
1002     {
1003       menu->action();
1004
1005       if(menu == worldmap_menu)
1006         {
1007           switch (worldmap_menu->check())
1008             {
1009             case MNID_RETURNWORLDMAP: // Return to game
1010               break;
1011             case MNID_QUITWORLDMAP: // Quit Worldmap
1012               quit = true;
1013               break;
1014             }
1015         }
1016       else if(menu == options_menu)
1017         {
1018           process_options_menu();
1019         }
1020     }
1021 }
1022
1023 Tile*
1024 WorldMap::at(Vector p)
1025 {
1026   assert(p.x >= 0
1027          && p.x < width
1028          && p.y >= 0
1029          && p.y < height);
1030
1031   int x = int(p.x);
1032   int y = int(p.y);
1033   return tile_manager->get(tilemap[width * y + x]);
1034 }
1035
1036 WorldMap::Level*
1037 WorldMap::at_level()
1038 {
1039   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1040     {
1041       if (i->pos == tux->get_tile_pos())
1042         return &*i;
1043     }
1044
1045   return 0;
1046 }
1047
1048 WorldMap::SpecialTile*
1049 WorldMap::at_special_tile()
1050 {
1051   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1052     {
1053       if (i->pos == tux->get_tile_pos())
1054         return &*i;
1055     }
1056
1057   return 0;
1058 }
1059
1060
1061 void
1062 WorldMap::draw(DrawingContext& context, const Vector& offset)
1063 {
1064   for(int y = 0; y < height; ++y)
1065     for(int x = 0; x < width; ++x)
1066       {
1067         Tile* tile = at(Vector(x, y));
1068         tile->draw(context, Vector(x*32 + offset.x, y*32 + offset.y));
1069       }
1070
1071   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1072     {
1073       if (i->solved)
1074         context.draw_surface(leveldot_green,
1075             Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1076       else
1077         context.draw_surface(leveldot_red,
1078             Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1079     }
1080
1081   for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1082     {
1083       if(i->invisible)
1084         continue;
1085
1086       if (i->teleport_dest != Vector(-1, -1))
1087         context.draw_surface(teleporterdot,
1088                 Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1089
1090       else if (!i->map_message.empty() && !i->passive_message)
1091         context.draw_surface(messagedot,
1092                 Vector(i->pos.x*32 + offset.x, i->pos.y*32 + offset.y), LAYER_TILES+1);
1093     }
1094
1095   tux->draw(context, offset);
1096   draw_status(context);
1097 }
1098
1099 void
1100 WorldMap::draw_status(DrawingContext& context)
1101 {
1102   char str[80];
1103   sprintf(str, " %d", total_stats.get_points(SCORE_STAT));
1104
1105   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1106   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1107
1108   sprintf(str, "%d", player_status.distros);
1109   context.draw_text(white_text, _("COINS"), Vector(screen->w/2 - 16*5, 0),
1110       LEFT_ALLIGN, LAYER_FOREGROUND1);
1111   context.draw_text(gold_text, str, Vector(screen->w/2 + (16*5)/2, 0),
1112         LEFT_ALLIGN, LAYER_FOREGROUND1);
1113
1114   if (player_status.lives >= 5)
1115     {
1116       sprintf(str, "%dx", player_status.lives);
1117       context.draw_text(gold_text, str,
1118           Vector(screen->w - gold_text->get_text_width(str) - tux_life->w, 0),
1119           LEFT_ALLIGN, LAYER_FOREGROUND1);
1120       context.draw_surface(tux_life, Vector(screen->w -
1121             gold_text->get_text_width("9"), 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
1122     }
1123   else
1124     {
1125       for(int i= 0; i < player_status.lives; ++i)
1126         context.draw_surface(tux_life,
1127             Vector(screen->w - tux_life->w*4 + (tux_life->w*i), 0),
1128             LAYER_FOREGROUND1);
1129     }
1130   context.draw_text(white_text, _("LIVES"),
1131       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 0),
1132       LEFT_ALLIGN, LAYER_FOREGROUND1);
1133
1134   if (!tux->is_moving())
1135     {
1136       for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1137         {
1138           if (i->pos == tux->get_tile_pos())
1139             {
1140               if(i->title == "")
1141                 get_level_title(*i);
1142
1143               context.draw_text(white_text, i->title,
1144                   Vector(screen->w/2,
1145                          screen->h - white_text->get_height() - 30),
1146                   CENTER_ALLIGN, LAYER_FOREGROUND1);
1147
1148               i->statistics.draw_worldmap_info(context);
1149               break;
1150             }
1151         }
1152       for(SpecialTiles::iterator i = special_tiles.begin(); i != special_tiles.end(); ++i)
1153         {
1154           if (i->pos == tux->get_tile_pos())
1155             {
1156                /* Display an in-map message in the map, if any as been selected */
1157               if(!i->map_message.empty() && !i->passive_message)
1158                 context.draw_text(gold_text, i->map_message,
1159                     Vector(screen->w/2,
1160                            screen->h - white_text->get_height() - 60),
1161                     CENTER_ALLIGN, LAYER_FOREGROUND1);
1162               break;
1163             }
1164         }
1165     }
1166   /* Display a passive message in the map, if needed */
1167   if(passive_message_timer.check())
1168     context.draw_text(gold_text, passive_message,
1169             Vector(screen->w/2, screen->h - white_text->get_height() - 60),
1170             CENTER_ALLIGN, LAYER_FOREGROUND1);
1171 }
1172
1173 void
1174 WorldMap::display()
1175 {
1176   Menu::set_current(0);
1177
1178   quit = false;
1179
1180   song = SoundManager::get()->load_music(datadir +  "/music/" + music);
1181   SoundManager::get()->play_music(song);
1182
1183   FrameRate frame_rate(10);
1184   frame_rate.set_frame_limit(false);
1185
1186   frame_rate.start();
1187   frame_timer.start(.25, true);
1188
1189   DrawingContext context;
1190   while(!quit)
1191     {
1192       float delta = frame_rate.get();
1193
1194       delta *= 1.3f;
1195
1196       if (delta > 10.0f)
1197         delta = .3f;
1198
1199       frame_rate.update();
1200
1201       Vector tux_pos = tux->get_pos();
1202       if (1)
1203         {
1204           offset.x = -tux_pos.x + screen->w/2;
1205           offset.y = -tux_pos.y + screen->h/2;
1206
1207           if (offset.x > 0) offset.x = 0;
1208           if (offset.y > 0) offset.y = 0;
1209
1210           if (offset.x < screen->w - width*32) offset.x = screen->w - width*32;
1211           if (offset.y < screen->h - height*32) offset.y = screen->h - height*32;
1212         }
1213
1214       draw(context, offset);
1215       get_input();
1216       update(delta);
1217
1218       if(Menu::current())
1219         {
1220           Menu::current()->draw(context);
1221           mouse_cursor->draw(context);
1222         }
1223
1224       context.do_drawing();
1225
1226       SDL_Delay(20);
1227     }
1228 }
1229
1230 void
1231 WorldMap::savegame(const std::string& filename)
1232 {
1233   if(filename == "")
1234     return;
1235
1236   std::cout << "savegame: " << filename << std::endl;
1237
1238    std::ofstream file(filename.c_str(), std::ios::out);
1239    LispWriter* writer = new LispWriter(file);
1240
1241   int nb_solved_levels = 0, total_levels = 0;
1242   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1243     {
1244       ++total_levels;
1245       if (i->solved)
1246         ++nb_solved_levels;
1247     }
1248   char nb_solved_levels_str[80], total_levels_str[80];
1249   sprintf(nb_solved_levels_str, "%d", nb_solved_levels);
1250   sprintf(total_levels_str, "%d", total_levels);
1251
1252   writer->write_comment("Worldmap save file");
1253
1254   writer->start_list("supertux-savegame");
1255
1256   writer->write_int("version", 1);
1257   writer->write_string("title", std::string(name + " - " + nb_solved_levels_str + "/" + total_levels_str));
1258   writer->write_string("map", map_filename);
1259   writer->write_int("lives", player_status.lives);
1260   writer->write_int("distros", player_status.lives);
1261   writer->write_int("max-score-multiplier", player_status.max_score_multiplier);
1262
1263   writer->start_list("tux");
1264
1265   writer->write_float("x", tux->get_tile_pos().x);
1266   writer->write_float("y", tux->get_tile_pos().y);
1267   writer->write_string("back", direction_to_string(tux->back_direction));
1268   writer->write_string("bonus", bonus_to_string(player_status.bonus));
1269
1270   writer->end_list("tux");
1271
1272   writer->start_list("levels");
1273
1274   for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1275     {
1276       if (i->solved)
1277         {
1278         writer->start_list("level");
1279
1280         writer->write_string("name", i->name);
1281         writer->write_bool("solved", true);
1282         i->statistics.write(*writer);
1283
1284         writer->end_list("level");
1285         }
1286     }
1287
1288   writer->end_list("levels");
1289
1290   writer->end_list("supertux-savegame");
1291 }
1292
1293 void
1294 WorldMap::loadgame(const std::string& filename)
1295 {
1296   std::cout << "loadgame: " << filename << std::endl;
1297   savegame_file = filename;
1298
1299   if (access(filename.c_str(), F_OK) != 0)
1300     {
1301     load_map();
1302
1303     player_status.reset();
1304
1305     return;
1306     }
1307
1308   lisp_object_t* savegame = lisp_read_from_file(filename);
1309   if (!savegame)
1310     {
1311       std::cout << "WorldMap:loadgame: File not found: " << filename << std::endl;
1312       load_map();
1313       return;
1314     }
1315
1316   lisp_object_t* cur = savegame;
1317
1318   if (strcmp(lisp_symbol(lisp_car(cur)), "supertux-savegame") != 0)
1319     {
1320     load_map();
1321     return;
1322     }
1323
1324   cur = lisp_cdr(cur);
1325   LispReader reader(cur);
1326
1327   /* Get the Map filename and then load it before setting level settings */
1328   std::string cur_map_filename = map_filename;
1329   reader.read_string("map", map_filename);
1330 //  if(cur_map_filename != map_filename)
1331     load_map();
1332
1333   reader.read_int("lives", player_status.lives);
1334   reader.read_int("distros", player_status.distros);
1335   reader.read_int("max-score-multiplier", player_status.max_score_multiplier);
1336
1337   if (player_status.lives < 0)
1338     player_status.lives = START_LIVES;
1339
1340   lisp_object_t* tux_cur = 0;
1341   if (reader.read_lisp("tux", tux_cur))
1342     {
1343       Vector p;
1344       std::string back_str = "none";
1345       std::string bonus_str = "none";
1346
1347       LispReader tux_reader(tux_cur);
1348       tux_reader.read_float("x", p.x);
1349       tux_reader.read_float("y", p.y);
1350       tux_reader.read_string("back", back_str);
1351       tux_reader.read_string("bonus", bonus_str);
1352
1353       player_status.bonus = string_to_bonus(bonus_str);
1354       tux->back_direction = string_to_direction(back_str);
1355       tux->set_tile_pos(p);
1356     }
1357
1358   lisp_object_t* level_cur = 0;
1359   if (reader.read_lisp("levels", level_cur))
1360     {
1361       while(level_cur)
1362         {
1363           lisp_object_t* sym  = lisp_car(lisp_car(level_cur));
1364           lisp_object_t* data = lisp_cdr(lisp_car(level_cur));
1365
1366           if (strcmp(lisp_symbol(sym), "level") == 0)
1367             {
1368               std::string name;
1369               bool solved = false;
1370
1371               LispReader level_reader(data);
1372               level_reader.read_string("name", name);
1373               level_reader.read_bool("solved", solved);
1374
1375               for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
1376                 {
1377                   if (name == i->name)
1378                     {
1379                     i->solved = solved;
1380                     i->statistics.parse(level_reader);
1381                     break;
1382                     }
1383                 }
1384             }
1385
1386           level_cur = lisp_cdr(level_cur);
1387         }
1388     }
1389
1390   lisp_free(savegame);
1391
1392   calculate_total_stats();
1393 }
1394
1395 void
1396 WorldMap::loadmap(const std::string& filename)
1397 {
1398   savegame_file = "";
1399   map_filename = filename;
1400   load_map();
1401 }
1402
1403 } // namespace WorldMapNS
1404
1405 /* Local Variables: */
1406 /* mode:c++ */
1407 /* End: */
1408