src/game_session.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux
   4 //  Copyright (C) 2000 Bill Kendrick <bill@newbreedsoftware.com>
   5 //  Copyright (C) 2004 Tobias Glaesser <tobi.web@gmx.de>
   6 //  Copyright (C) 2004 Ingo Ruhnke <grumbel@gmx.de>
   7 //
   8 //  This program is free software; you can redistribute it and/or
   9 //  modify it under the terms of the GNU General Public License
  10 //  as published by the Free Software Foundation; either version 2
  11 //  of the License, or (at your option) any later version.
  12 //
  13 //  This program is distributed in the hope that it will be useful,
  14 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 //  GNU General Public License for more details.
  17 //
  18 //  You should have received a copy of the GNU General Public License
  19 //  along with this program; if not, write to the Free Software
  20 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 #include <config.h>
  22
  23 #include <iostream>
  24 #include <fstream>
  25 #include <sstream>
  26 #include <cassert>
  27 #include <cstdio>
  28 #include <cstdlib>
  29 #include <cmath>
  30 #include <cstring>
  31 #include <cerrno>
  32 #include <unistd.h>
  33 #include <ctime>
  34 #include <stdexcept>
  35
  36 #include <SDL.h>
  37
  38 #include "game_session.hpp"
  39 #include "video/screen.hpp"
  40 #include "audio/sound_manager.hpp"
  41 #include "gui/menu.hpp"
  42 #include "sector.hpp"
  43 #include "level.hpp"
  44 #include "tile.hpp"
  45 #include "player_status.hpp"
  46 #include "object/particlesystem.hpp"
  47 #include "object/background.hpp"
  48 #include "object/tilemap.hpp"
  49 #include "object/camera.hpp"
  50 #include "object/player.hpp"
  51 #include "lisp/lisp.hpp"
  52 #include "lisp/parser.hpp"
  53 #include "resources.hpp"
  54 #include "worldmap.hpp"
  55 #include "misc.hpp"
  56 #include "statistics.hpp"
  57 #include "timer.hpp"
  58 #include "object/fireworks.hpp"
  59 #include "textscroller.hpp"
  60 #include "control/codecontroller.hpp"
  61 #include "control/joystickkeyboardcontroller.hpp"
  62 #include "main.hpp"
  63 #include "file_system.hpp"
  64 #include "gameconfig.hpp"
  65 #include "gettext.hpp"
  66 #include "exceptions.hpp"
  67 #include "flip_level_transformer.hpp"
  68
  69 // the engine will be run with a logical framerate of 64fps.
  70 // We chose 64fps here because it is a power of 2, so 1/64 gives an "even"
  71 // binary fraction...
  72 static const float LOGICAL_FPS = 64.0;
  73
  74 GameSession* GameSession::current_ = 0;
  75
  76 GameSession::GameSession(const std::string& levelfile_, GameSessionMode mode,
  77     Statistics* statistics)
  78   : level(0), currentsector(0), mode(mode),
  79     end_sequence(NO_ENDSEQUENCE), end_sequence_controller(0),
  80     levelfile(levelfile_), best_level_statistics(statistics),
  81     capture_demo_stream(0), playback_demo_stream(0), demo_controller(0)
  82 {
  83   current_ = this;
  84   currentsector = 0;
  85
  86   game_pause = false;
  87   music_playing = false;
  88   fps_fps = 0;
  89
  90   context = new DrawingContext();
  91
  92   restart_level();
  93 }
  94
  95 void
  96 GameSession::restart_level()
  97 {
  98   game_pause   = false;
  99   exit_status  = ES_NONE;
 100   end_sequence = NO_ENDSEQUENCE;
 101
 102   main_controller->reset();
 103
 104   delete level;
 105   currentsector = 0;
 106
 107   level = new Level;
 108   level->load(levelfile);
 109
 110   global_stats.reset();
 111   global_stats.set_total_points(COINS_COLLECTED_STAT, level->get_total_coins());
 112   global_stats.set_total_points(BADGUYS_KILLED_STAT, level->get_total_badguys());
 113   //global_stats.set_total_points(TIME_NEEDED_STAT, level->timelimit);
 114
 115   if(reset_sector != "") {
 116     currentsector = level->get_sector(reset_sector);
 117     if(!currentsector) {
 118       std::stringstream msg;
 119       msg << "Couldn't find sector '" << reset_sector << "' for resetting tux.";
 120       throw std::runtime_error(msg.str());
 121     }
 122     currentsector->activate(reset_pos);
 123   } else {
 124     currentsector = level->get_sector("main");
 125     if(!currentsector)
 126       throw std::runtime_error("Couldn't find main sector");
 127     currentsector->activate("main");
 128   }
 129
 130   if(mode == ST_GL_PLAY || mode == ST_GL_LOAD_LEVEL_FILE)
 131     levelintro();
 132
 133   if (!music_playing)
 134   {
 135     currentsector->play_music(LEVEL_MUSIC);
 136     music_playing = true;
 137   }
 138
 139   if(capture_file != "")
 140     record_demo(capture_file);
 141 }
 142
 143 GameSession::~GameSession()
 144 {
 145   delete capture_demo_stream;
 146   delete playback_demo_stream;
 147   delete demo_controller;
 148
 149   delete end_sequence_controller;
 150   delete level;
 151   delete context;
 152
 153   current_ = NULL;
 154 }
 155
 156 void
 157 GameSession::record_demo(const std::string& filename)
 158 {
 159   delete capture_demo_stream;
 160
 161   capture_demo_stream = new std::ofstream(filename.c_str());
 162   if(!capture_demo_stream->good()) {
 163     std::stringstream msg;
 164     msg << "Couldn't open demo file '" << filename << "' for writing.";
 165     throw std::runtime_error(msg.str());
 166   }
 167   capture_file = filename;
 168 }
 169
 170 void
 171 GameSession::play_demo(const std::string& filename)
 172 {
 173   delete playback_demo_stream;
 174   delete demo_controller;
 175
 176   playback_demo_stream = new std::ifstream(filename.c_str());
 177   if(!playback_demo_stream->good()) {
 178     std::stringstream msg;
 179     msg << "Couldn't open demo file '" << filename << "' for reading.";
 180     throw std::runtime_error(msg.str());
 181   }
 182
 183   Player& tux = *currentsector->player;
 184   demo_controller = new CodeController();
 185   tux.set_controller(demo_controller);
 186 }
 187
 188 void
 189 GameSession::levelintro()
 190 {
 191   char str[60];
 192
 193   DrawingContext context;
 194   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 195       i != currentsector->gameobjects.end(); ++i) {
 196     Background* background = dynamic_cast<Background*> (*i);
 197     if(background) {
 198       background->draw(context);
 199     }
 200   }
 201
 202 //  context.draw_text(gold_text, level->get_name(), Vector(SCREEN_WIDTH/2, 160),
 203 //      CENTER_ALLIGN, LAYER_FOREGROUND1);
 204   context.draw_center_text(gold_text, level->get_name(), Vector(0, 160),
 205       LAYER_FOREGROUND1);
 206
 207   sprintf(str, "TUX x %d", player_status->lives);
 208   context.draw_text(white_text, str, Vector(SCREEN_WIDTH/2, 210),
 209       CENTER_ALLIGN, LAYER_FOREGROUND1);
 210
 211   if((level->get_author().size()) && (level->get_author() != "SuperTux Team"))
 212     //TODO make author check case/blank-insensitive
 213     context.draw_text(white_small_text,
 214       std::string(_("contributed by ")) + level->get_author(),
 215       Vector(SCREEN_WIDTH/2, 350), CENTER_ALLIGN, LAYER_FOREGROUND1);
 216
 217
 218   if(best_level_statistics != NULL)
 219     best_level_statistics->draw_message_info(context, _("Best Level Statistics"));
 220
 221   context.do_drawing();
 222
 223   wait_for_event(1.0, 3.0);
 224 }
 225
 226 void
 227 GameSession::on_escape_press()
 228 {
 229   if(currentsector->player->is_dying() || end_sequence != NO_ENDSEQUENCE)
 230     return;   // don't let the player open the menu, when he is dying
 231
 232   if(mode == ST_GL_TEST) {
 233     exit_status = ES_LEVEL_ABORT;
 234   } else if (!Menu::current()) {
 235     Menu::set_current(game_menu);
 236     game_menu->set_active_item(MNID_CONTINUE);
 237     game_pause = true;
 238   } else {
 239     game_pause = false;
 240   }
 241 }
 242
 243 void
 244 GameSession::process_events()
 245 {
 246   Player& tux = *currentsector->player;
 247   main_controller->update();
 248
 249   // end of pause mode?
 250   if(!Menu::current() && game_pause) {
 251     game_pause = false;
 252   }
 253
 254   if (end_sequence != NO_ENDSEQUENCE) {
 255     if(end_sequence_controller == 0) {
 256       end_sequence_controller = new CodeController();
 257       tux.set_controller(end_sequence_controller);
 258     }
 259
 260     end_sequence_controller->press(Controller::RIGHT);
 261
 262     if (int(last_x_pos) == int(tux.get_pos().x))
 263       end_sequence_controller->press(Controller::JUMP);
 264     last_x_pos = tux.get_pos().x;
 265   }
 266
 267   main_controller->update();
 268   SDL_Event event;
 269   while (SDL_PollEvent(&event)) {
 270     /* Check for menu-events, if the menu is shown */
 271     if (Menu::current())
 272       Menu::current()->event(event);
 273     main_controller->process_event(event);
 274     if(event.type == SDL_QUIT)
 275       throw graceful_shutdown();
 276   }
 277
 278   // playback a demo?
 279   if(playback_demo_stream != 0) {
 280     demo_controller->update();
 281     char left = false;
 282     char right = false;
 283     char up = false;
 284     char down = false;
 285     char jump = false;
 286     char action = false;
 287     playback_demo_stream->get(left);
 288     playback_demo_stream->get(right);
 289     playback_demo_stream->get(up);
 290     playback_demo_stream->get(down);
 291     playback_demo_stream->get(jump);
 292     playback_demo_stream->get(action);
 293     demo_controller->press(Controller::LEFT, left);
 294     demo_controller->press(Controller::RIGHT, right);
 295     demo_controller->press(Controller::UP, up);
 296     demo_controller->press(Controller::DOWN, down);
 297     demo_controller->press(Controller::JUMP, jump);
 298     demo_controller->press(Controller::ACTION, action);
 299   }
 300
 301   // save input for demo?
 302   if(capture_demo_stream != 0) {
 303     capture_demo_stream ->put(main_controller->hold(Controller::LEFT));
 304     capture_demo_stream ->put(main_controller->hold(Controller::RIGHT));
 305     capture_demo_stream ->put(main_controller->hold(Controller::UP));
 306     capture_demo_stream ->put(main_controller->hold(Controller::DOWN));
 307     capture_demo_stream ->put(main_controller->hold(Controller::JUMP));
 308     capture_demo_stream ->put(main_controller->hold(Controller::ACTION));
 309   }
 310 }
 311
 312 void
 313 GameSession::try_cheats()
 314 {
 315   if(currentsector == 0)
 316     return;
 317   Player& tux = *currentsector->player;
 318
 319   // Cheating words (the goal of this is really for debugging,
 320   // but could be used for some cheating, nothing wrong with that)
 321   if(main_controller->check_cheatcode("grow")) {
 322     tux.set_bonus(GROWUP_BONUS, false);
 323   }
 324   if(main_controller->check_cheatcode("fire")) {
 325     tux.set_bonus(FIRE_BONUS, false);
 326   }
 327   if(main_controller->check_cheatcode("ice")) {
 328     tux.set_bonus(ICE_BONUS, false);
 329   }
 330   if(main_controller->check_cheatcode("lifeup")) {
 331     player_status->lives++;
 332   }
 333   if(main_controller->check_cheatcode("lifedown")) {
 334     player_status->lives--;
 335   }
 336   if(main_controller->check_cheatcode("grease")) {
 337     tux.physic.set_velocity_x(tux.physic.get_velocity_x()*3);
 338   }
 339   if(main_controller->check_cheatcode("invincible")) {
 340     // be invincle for the rest of the level
 341     tux.invincible_timer.start(10000);
 342   }
 343   if(main_controller->check_cheatcode("mortal")) {
 344     // give up invincibility
 345     tux.invincible_timer.stop();
 346   }
 347   if(main_controller->check_cheatcode("shrink")) {
 348     // remove powerups
 349     tux.kill(tux.SHRINK);
 350   }
 351   if(main_controller->check_cheatcode("kill")) {
 352     // kill Tux, but without losing a life
 353     player_status->lives++;
 354     tux.kill(tux.KILL);
 355   }
 356   if(main_controller->check_cheatcode("whereami")) {
 357     std::cout << "You are at x " << tux.get_pos().x << ", y " << tux.get_pos().y << "." << std::endl;
 358   }
 359 #if 0
 360   if(main_controller->check_cheatcode("grid")) {
 361     // toggle debug grid
 362     debug_grid = !debug_grid;
 363   }
 364 #endif
 365   if(main_controller->check_cheatcode("gotoend")) {
 366     // goes to the end of the level
 367     tux.move(Vector(
 368           (currentsector->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 369     currentsector->camera->reset(
 370         Vector(tux.get_pos().x, tux.get_pos().y));
 371   }
 372   if(main_controller->check_cheatcode("flip")) {
 373         FlipLevelTransformer flip_transformer;
 374     flip_transformer.transform(GameSession::current()->get_current_level());
 375   }
 376   if(main_controller->check_cheatcode("finish")) {
 377     // finish current sector
 378     exit_status = ES_LEVEL_FINISHED;
 379     // don't add points to stats though...
 380   }
 381 }
 382
 383 void
 384 GameSession::check_end_conditions()
 385 {
 386   Player* tux = currentsector->player;
 387
 388   /* End of level? */
 389   if(end_sequence && endsequence_timer.check()) {
 390     exit_status = ES_LEVEL_FINISHED;
 391     return;
 392   } else if (!end_sequence && tux->is_dead()) {
 393     if (player_status->lives < 0) { // No more lives!?
 394       exit_status = ES_GAME_OVER;
 395     } else { // Still has lives, so reset Tux to the levelstart
 396       restart_level();
 397     }
 398
 399     return;
 400   }
 401 }
 402
 403 void
 404 GameSession::update(float elapsed_time)
 405 {
 406   // handle controller
 407   if(main_controller->pressed(Controller::PAUSE_MENU))
 408     on_escape_press();
 409
 410   // advance timers
 411   if(!currentsector->player->growing_timer.started()) {
 412     // Update Tux and the World
 413     currentsector->update(elapsed_time);
 414   }
 415
 416   // respawning in new sector?
 417   if(newsector != "" && newspawnpoint != "") {
 418     Sector* sector = level->get_sector(newsector);
 419     if(sector == 0) {
 420       std::cerr << "Sector '" << newsector << "' not found.\n";
 421     }
 422     sector->activate(newspawnpoint);
 423     sector->play_music(LEVEL_MUSIC);
 424     currentsector = sector;
 425     newsector = "";
 426     newspawnpoint = "";
 427   }
 428
 429   // update sounds
 430   sound_manager->set_listener_position(currentsector->player->get_pos());
 431 }
 432
 433 void
 434 GameSession::draw()
 435 {
 436   currentsector->draw(*context);
 437   drawstatus(*context);
 438
 439   if(game_pause)
 440     draw_pause();
 441
 442   if(Menu::current()) {
 443     Menu::current()->draw(*context);
 444   }
 445
 446   context->do_drawing();
 447 }
 448
 449 void
 450 GameSession::draw_pause()
 451 {
 452   context->draw_filled_rect(
 453       Vector(0,0), Vector(SCREEN_WIDTH, SCREEN_HEIGHT),
 454       Color(.2, .2, .2, .5), LAYER_FOREGROUND1);
 455 }
 456
 457 void
 458 GameSession::process_menu()
 459 {
 460   Menu* menu = Menu::current();
 461   if(menu) {
 462     menu->update();
 463
 464     if(menu == game_menu) {
 465       switch (game_menu->check()) {
 466         case MNID_CONTINUE:
 467           Menu::set_current(0);
 468           break;
 469         case MNID_ABORTLEVEL:
 470           Menu::set_current(0);
 471           exit_status = ES_LEVEL_ABORT;
 472           break;
 473       }
 474     } else if(menu == options_menu) {
 475       process_options_menu();
 476     } else if(menu == load_game_menu ) {
 477       process_load_game_menu();
 478     }
 479   }
 480 }
 481
 482
 483 GameSession::ExitStatus
 484 GameSession::run()
 485 {
 486   Menu::set_current(0);
 487   current_ = this;
 488
 489   int fps_cnt = 0;
 490
 491   // Eat unneeded events
 492   SDL_Event event;
 493   while(SDL_PollEvent(&event))
 494   {}
 495
 496   draw();
 497
 498   Uint32 fps_ticks = SDL_GetTicks();
 499   Uint32 fps_nextframe_ticks = SDL_GetTicks();
 500   Uint32 ticks;
 501   bool skipdraw = false;
 502
 503   while (exit_status == ES_NONE) {
 504     // we run in a logical framerate so elapsed time is a constant
 505     static const float elapsed_time = 1.0 / LOGICAL_FPS;
 506     // old code... float elapsed_time = float(ticks - lastticks) / 1000.;
 507     if(!game_pause)
 508       game_time += elapsed_time;
 509
 510     // regulate fps
 511     ticks = SDL_GetTicks();
 512     if(ticks > fps_nextframe_ticks) {
 513       if(skipdraw == true) {
 514         // already skipped last frame? we have to slow down the game then...
 515         skipdraw = false;
 516         fps_nextframe_ticks -= (Uint32) (1000.0 / LOGICAL_FPS);
 517       } else {
 518         // don't draw all frames when we're getting too slow
 519         skipdraw = true;
 520       }
 521     } else {
 522       skipdraw = false;
 523       while(fps_nextframe_ticks > ticks) {
 524         /* just wait */
 525         // If we really have to wait long, then do an imprecise SDL_Delay()
 526         Uint32 diff = fps_nextframe_ticks - ticks;
 527         if(diff > 15) {
 528           SDL_Delay(diff - 10);
 529         }
 530         ticks = SDL_GetTicks();
 531       }
 532     }
 533     fps_nextframe_ticks = ticks + (Uint32) (1000.0 / LOGICAL_FPS);
 534
 535 #if 0
 536     float diff = SDL_GetTicks() - fps_nextframe_ticks;
 537     if (diff > 5.0) {
 538          // sets the ticks that must have elapsed
 539         fps_nextframe_ticks = SDL_GetTicks() + (1000.0 / LOGICAL_FPS);
 540     } else {
 541         // sets the ticks that must have elapsed
 542         // in order for the next frame to start.
 543         fps_nextframe_ticks += 1000.0 / LOGICAL_FPS;
 544     }
 545 #endif
 546
 547     process_events();
 548     process_menu();
 549
 550     // Update the world state and all objects in the world
 551     // Do that with a constante time-delta so that the game will run
 552     // determistic and not different on different machines
 553     if(!game_pause && !Menu::current())
 554     {
 555       // Update the world
 556       check_end_conditions();
 557       if (end_sequence == ENDSEQUENCE_RUNNING)
 558         update(elapsed_time/2);
 559       else if(end_sequence == NO_ENDSEQUENCE)
 560         update(elapsed_time);
 561     }
 562     else
 563     {
 564       ++pause_menu_frame;
 565     }
 566
 567     if(!skipdraw)
 568       draw();
 569
 570     // update sounds
 571     sound_manager->update();
 572
 573     /* Time stops in pause mode */
 574     if(game_pause || Menu::current())
 575     {
 576       continue;
 577     }
 578
 579     //frame_rate.update();
 580
 581     /* Handle music: */
 582     if (currentsector->player->invincible_timer.started() &&
 583             currentsector->player->invincible_timer.get_timeleft()
 584             > TUX_INVINCIBLE_TIME_WARNING && !end_sequence)
 585     {
 586       currentsector->play_music(HERRING_MUSIC);
 587     }
 588     /* or just normal music? */
 589     else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 590     {
 591       currentsector->play_music(LEVEL_MUSIC);
 592     }
 593
 594     /* Calculate frames per second */
 595     if(config->show_fps)
 596     {
 597       ++fps_cnt;
 598
 599       if(SDL_GetTicks() - fps_ticks >= 500)
 600       {
 601         fps_fps = (float) fps_cnt / .5;
 602         fps_cnt = 0;
 603         fps_ticks = SDL_GetTicks();
 604       }
 605     }
 606   }
 607
 608   // just in case
 609   currentsector = 0;
 610   main_controller->reset();
 611   return exit_status;
 612 }
 613
 614 void
 615 GameSession::finish(bool win)
 616 {
 617   if(win)
 618     exit_status = ES_LEVEL_FINISHED;
 619   else
 620     exit_status = ES_LEVEL_ABORT;
 621 }
 622
 623 void
 624 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 625 {
 626   newsector = sector;
 627   newspawnpoint = spawnpoint;
 628 }
 629
 630 void
 631 GameSession::set_reset_point(const std::string& sector, const Vector& pos)
 632 {
 633   reset_sector = sector;
 634   reset_pos = pos;
 635 }
 636
 637 std::string
 638 GameSession::get_working_directory()
 639 {
 640   return FileSystem::dirname(levelfile);
 641 }
 642
 643 void
 644 GameSession::display_info_box(const std::string& text)
 645 {
 646   InfoBox* box = new InfoBox(text);
 647
 648   bool running = true;
 649   while(running)  {
 650
 651     main_controller->update();
 652     SDL_Event event;
 653     while (SDL_PollEvent(&event)) {
 654       main_controller->process_event(event);
 655       if(event.type == SDL_QUIT)
 656         throw graceful_shutdown();
 657     }
 658
 659     if(main_controller->pressed(Controller::JUMP)
 660         || main_controller->pressed(Controller::ACTION)
 661         || main_controller->pressed(Controller::PAUSE_MENU)
 662         || main_controller->pressed(Controller::MENU_SELECT))
 663       running = false;
 664     else if(main_controller->pressed(Controller::DOWN))
 665       box->scrolldown();
 666     else if(main_controller->pressed(Controller::UP))
 667       box->scrollup();
 668     box->draw(*context);
 669     draw();
 670     sound_manager->update();
 671   }
 672
 673   delete box;
 674 }
 675
 676 void
 677 GameSession::start_sequence(const std::string& sequencename)
 678 {
 679   if(sequencename == "endsequence" || sequencename == "fireworks") {
 680     if(end_sequence)
 681       return;
 682
 683     end_sequence = ENDSEQUENCE_RUNNING;
 684     endsequence_timer.start(7.0); // 7 seconds until we finish the map
 685     last_x_pos = -1;
 686     sound_manager->play_music("music/leveldone.ogg", false);
 687     currentsector->player->invincible_timer.start(7.0);
 688
 689     if(sequencename == "fireworks") {
 690       currentsector->add_object(new Fireworks());
 691     }
 692   } else if(sequencename == "stoptux") {
 693     if(!end_sequence) {
 694       std::cout << "WARNING: Final target reached without "
 695         << "an active end sequence." << std::endl;
 696       this->start_sequence("endsequence");
 697     }
 698     end_sequence =  ENDSEQUENCE_WAITING;
 699   } else {
 700     std::cout << "Unknown sequence '" << sequencename << "'.\n";
 701   }
 702 }
 703
 704 /* (Status): */
 705 void
 706 GameSession::drawstatus(DrawingContext& context)
 707 {
 708   player_status->draw(context);
 709
 710   if(config->show_fps) {
 711     char str[60];
 712     snprintf(str, sizeof(str), "%3.1f", fps_fps);
 713     context.draw_text(white_text, "FPS",
 714                       Vector(SCREEN_WIDTH -
 715                              white_text->get_text_width("FPS     ") - BORDER_X, BORDER_Y + 40),
 716                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 717     context.draw_text(gold_text, str,
 718                       Vector(SCREEN_WIDTH-4*16 - BORDER_X, BORDER_Y + 40),
 719                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 720   }
 721 }
 722
 723 void
 724 GameSession::drawresultscreen()
 725 {
 726   char str[80];
 727
 728   DrawingContext context;
 729   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 730       i != currentsector->gameobjects.end(); ++i) {
 731     Background* background = dynamic_cast<Background*> (*i);
 732     if(background) {
 733       background->draw(context);
 734     }
 735   }
 736
 737   context.draw_text(blue_text, _("Result:"), Vector(SCREEN_WIDTH/2, 200),
 738       CENTER_ALLIGN, LAYER_FOREGROUND1);
 739
 740 //  sprintf(str, _("SCORE: %d"), global_stats.get_points(SCORE_STAT));
 741 //  context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 742
 743   // y == 256 before removal of score
 744   sprintf(str, _("COINS: %d"), player_status->coins);
 745   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 746
 747   context.do_drawing();
 748
 749   wait_for_event(2.0, 5.0);
 750 }
 751
 752 std::string slotinfo(int slot)
 753 {
 754   std::string tmp;
 755   std::string slotfile;
 756   std::string title;
 757   std::stringstream stream;
 758   stream << slot;
 759   slotfile = "save/slot" + stream.str() + ".stsg";
 760
 761   try {
 762     lisp::Parser parser;
 763     std::auto_ptr<lisp::Lisp> root (parser.parse(slotfile));
 764
 765     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
 766     if(!savegame)
 767       throw std::runtime_error("file is not a supertux-savegame.");
 768
 769     savegame->get("title", title);
 770   } catch(std::exception& e) {
 771     return std::string(_("Slot")) + " " + stream.str() + " - " +
 772       std::string(_("Free"));
 773   }
 774
 775   return std::string("Slot ") + stream.str() + " - " + title;
 776 }
 777
 778 bool process_load_game_menu()
 779 {
 780   int slot = load_game_menu->check();
 781
 782   if(slot == -1)
 783     return false;
 784
 785   if(load_game_menu->get_item_by_id(slot).kind != MN_ACTION)
 786     return false;
 787
 788   std::stringstream stream;
 789   stream << slot;
 790   std::string slotfile = "save/slot" + stream.str() + ".stsg";
 791
 792   sound_manager->stop_music();
 793   fadeout(256);
 794   DrawingContext context;
 795   context.draw_text(white_text, "Loading...",
 796                     Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2),
 797                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 798   context.do_drawing();
 799
 800   WorldMapNS::WorldMap worldmap;
 801
 802   worldmap.set_map_filename("/levels/world1/worldmap.stwm");
 803   // Load the game or at least set the savegame_file variable
 804   worldmap.loadgame(slotfile);
 805
 806   worldmap.display();
 807
 808   Menu::set_current(main_menu);
 809
 810   return true;
 811 }