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 "object/level_time.hpp"
  52 #include "lisp/lisp.hpp"
  53 #include "lisp/parser.hpp"
  54 #include "resources.hpp"
  55 #include "worldmap.hpp"
  56 #include "misc.hpp"
  57 #include "statistics.hpp"
  58 #include "timer.hpp"
  59 #include "object/fireworks.hpp"
  60 #include "textscroller.hpp"
  61 #include "control/codecontroller.hpp"
  62 #include "control/joystickkeyboardcontroller.hpp"
  63 #include "main.hpp"
  64 #include "file_system.hpp"
  65 #include "gameconfig.hpp"
  66 #include "gettext.hpp"
  67 #include "exceptions.hpp"
  68 #include "flip_level_transformer.hpp"
  69
  70 // the engine will be run with a logical framerate of 64fps.
  71 // We chose 64fps here because it is a power of 2, so 1/64 gives an "even"
  72 // binary fraction...
  73 static const float LOGICAL_FPS = 64.0;
  74
  75 GameSession* GameSession::current_ = 0;
  76
  77 GameSession::GameSession(const std::string& levelfile_, GameSessionMode mode,
  78     Statistics* statistics)
  79   : level(0), currentsector(0), mode(mode),
  80     end_sequence(NO_ENDSEQUENCE), end_sequence_controller(0),
  81     levelfile(levelfile_), best_level_statistics(statistics),
  82     capture_demo_stream(0), playback_demo_stream(0), demo_controller(0)
  83 {
  84   current_ = this;
  85   currentsector = 0;
  86
  87   game_pause = false;
  88   music_playing = false;
  89   fps_fps = 0;
  90
  91   context = new DrawingContext();
  92
  93   restart_level();
  94 }
  95
  96 void
  97 GameSession::restart_level()
  98 {
  99   game_pause   = false;
 100   exit_status  = ES_NONE;
 101   end_sequence = NO_ENDSEQUENCE;
 102
 103   main_controller->reset();
 104
 105   delete level;
 106   currentsector = 0;
 107
 108   level = new Level;
 109   level->load(levelfile);
 110
 111   global_stats.reset();
 112   global_stats.set_total_points(COINS_COLLECTED_STAT, level->get_total_coins());
 113   global_stats.set_total_points(BADGUYS_KILLED_STAT, level->get_total_badguys());
 114
 115   // get time
 116   int time = 0;
 117   for(std::vector<Sector*>::iterator i = level->sectors.begin(); i != level->sectors.end(); ++i)
 118   {
 119     Sector* sec = *i;
 120
 121     for(std::vector<GameObject*>::iterator j = sec->gameobjects.begin();
 122         j != sec->gameobjects.end(); ++j)
 123     {
 124       GameObject* obj = *j;
 125
 126       LevelTime* lt = dynamic_cast<LevelTime*> (obj);
 127       if(lt)
 128         time += int(lt->get_level_time());
 129     }
 130   }
 131   global_stats.set_total_points(TIME_NEEDED_STAT, (time == 0) ? -1 : time);
 132
 133   if(reset_sector != "") {
 134     currentsector = level->get_sector(reset_sector);
 135     if(!currentsector) {
 136       std::stringstream msg;
 137       msg << "Couldn't find sector '" << reset_sector << "' for resetting tux.";
 138       throw std::runtime_error(msg.str());
 139     }
 140     currentsector->activate(reset_pos);
 141   } else {
 142     currentsector = level->get_sector("main");
 143     if(!currentsector)
 144       throw std::runtime_error("Couldn't find main sector");
 145     currentsector->activate("main");
 146   }
 147
 148   if(mode == ST_GL_PLAY || mode == ST_GL_LOAD_LEVEL_FILE)
 149     levelintro();
 150
 151   if (!music_playing)
 152   {
 153     currentsector->play_music(LEVEL_MUSIC);
 154     music_playing = true;
 155   }
 156
 157   if(capture_file != "")
 158     record_demo(capture_file);
 159 }
 160
 161 GameSession::~GameSession()
 162 {
 163   delete capture_demo_stream;
 164   delete playback_demo_stream;
 165   delete demo_controller;
 166
 167   delete end_sequence_controller;
 168   delete level;
 169   delete context;
 170
 171   current_ = NULL;
 172 }
 173
 174 void
 175 GameSession::record_demo(const std::string& filename)
 176 {
 177   delete capture_demo_stream;
 178
 179   capture_demo_stream = new std::ofstream(filename.c_str());
 180   if(!capture_demo_stream->good()) {
 181     std::stringstream msg;
 182     msg << "Couldn't open demo file '" << filename << "' for writing.";
 183     throw std::runtime_error(msg.str());
 184   }
 185   capture_file = filename;
 186 }
 187
 188 void
 189 GameSession::play_demo(const std::string& filename)
 190 {
 191   delete playback_demo_stream;
 192   delete demo_controller;
 193
 194   playback_demo_stream = new std::ifstream(filename.c_str());
 195   if(!playback_demo_stream->good()) {
 196     std::stringstream msg;
 197     msg << "Couldn't open demo file '" << filename << "' for reading.";
 198     throw std::runtime_error(msg.str());
 199   }
 200
 201   Player& tux = *currentsector->player;
 202   demo_controller = new CodeController();
 203   tux.set_controller(demo_controller);
 204 }
 205
 206 void
 207 GameSession::levelintro()
 208 {
 209   char str[60];
 210
 211   DrawingContext context;
 212   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 213       i != currentsector->gameobjects.end(); ++i) {
 214     Background* background = dynamic_cast<Background*> (*i);
 215     if(background) {
 216       background->draw(context);
 217     }
 218   }
 219
 220 //  context.draw_text(gold_text, level->get_name(), Vector(SCREEN_WIDTH/2, 160),
 221 //      CENTER_ALLIGN, LAYER_FOREGROUND1);
 222   context.draw_center_text(gold_text, level->get_name(), Vector(0, 160),
 223       LAYER_FOREGROUND1);
 224
 225   sprintf(str, "TUX x %d", player_status->lives);
 226   context.draw_text(white_text, str, Vector(SCREEN_WIDTH/2, 210),
 227       CENTER_ALLIGN, LAYER_FOREGROUND1);
 228
 229   if((level->get_author().size()) && (level->get_author() != "SuperTux Team"))
 230     //TODO make author check case/blank-insensitive
 231     context.draw_text(white_small_text,
 232       std::string(_("contributed by ")) + level->get_author(),
 233       Vector(SCREEN_WIDTH/2, 350), CENTER_ALLIGN, LAYER_FOREGROUND1);
 234
 235
 236   if(best_level_statistics != NULL)
 237     best_level_statistics->draw_message_info(context, _("Best Level Statistics"));
 238
 239   context.do_drawing();
 240
 241   wait_for_event(1.0, 3.0);
 242 }
 243
 244 void
 245 GameSession::on_escape_press()
 246 {
 247   if(currentsector->player->is_dying() || end_sequence != NO_ENDSEQUENCE)
 248     return;   // don't let the player open the menu, when he is dying
 249
 250   if(mode == ST_GL_TEST) {
 251     exit_status = ES_LEVEL_ABORT;
 252   } else if (!Menu::current()) {
 253     Menu::set_current(game_menu);
 254     game_menu->set_active_item(MNID_CONTINUE);
 255     game_pause = true;
 256   } else {
 257     game_pause = false;
 258   }
 259 }
 260
 261 void
 262 GameSession::process_events()
 263 {
 264   Player& tux = *currentsector->player;
 265   main_controller->update();
 266
 267   // end of pause mode?
 268   if(!Menu::current() && game_pause) {
 269     game_pause = false;
 270   }
 271
 272   if (end_sequence != NO_ENDSEQUENCE) {
 273     if(end_sequence_controller == 0) {
 274       end_sequence_controller = new CodeController();
 275       tux.set_controller(end_sequence_controller);
 276     }
 277
 278     end_sequence_controller->press(Controller::RIGHT);
 279
 280     if (int(last_x_pos) == int(tux.get_pos().x))
 281       end_sequence_controller->press(Controller::JUMP);
 282     last_x_pos = tux.get_pos().x;
 283   }
 284
 285   main_controller->update();
 286   SDL_Event event;
 287   while (SDL_PollEvent(&event)) {
 288     /* Check for menu-events, if the menu is shown */
 289     if (Menu::current())
 290       Menu::current()->event(event);
 291     main_controller->process_event(event);
 292     if(event.type == SDL_QUIT)
 293       throw graceful_shutdown();
 294   }
 295
 296   // playback a demo?
 297   if(playback_demo_stream != 0) {
 298     demo_controller->update();
 299     char left = false;
 300     char right = false;
 301     char up = false;
 302     char down = false;
 303     char jump = false;
 304     char action = false;
 305     playback_demo_stream->get(left);
 306     playback_demo_stream->get(right);
 307     playback_demo_stream->get(up);
 308     playback_demo_stream->get(down);
 309     playback_demo_stream->get(jump);
 310     playback_demo_stream->get(action);
 311     demo_controller->press(Controller::LEFT, left);
 312     demo_controller->press(Controller::RIGHT, right);
 313     demo_controller->press(Controller::UP, up);
 314     demo_controller->press(Controller::DOWN, down);
 315     demo_controller->press(Controller::JUMP, jump);
 316     demo_controller->press(Controller::ACTION, action);
 317   }
 318
 319   // save input for demo?
 320   if(capture_demo_stream != 0) {
 321     capture_demo_stream ->put(main_controller->hold(Controller::LEFT));
 322     capture_demo_stream ->put(main_controller->hold(Controller::RIGHT));
 323     capture_demo_stream ->put(main_controller->hold(Controller::UP));
 324     capture_demo_stream ->put(main_controller->hold(Controller::DOWN));
 325     capture_demo_stream ->put(main_controller->hold(Controller::JUMP));
 326     capture_demo_stream ->put(main_controller->hold(Controller::ACTION));
 327   }
 328 }
 329
 330 void
 331 GameSession::try_cheats()
 332 {
 333   if(currentsector == 0)
 334     return;
 335   Player& tux = *currentsector->player;
 336
 337   // Cheating words (the goal of this is really for debugging,
 338   // but could be used for some cheating, nothing wrong with that)
 339   if(main_controller->check_cheatcode("grow")) {
 340     tux.set_bonus(GROWUP_BONUS, false);
 341   }
 342   if(main_controller->check_cheatcode("fire")) {
 343     tux.set_bonus(FIRE_BONUS, false);
 344   }
 345   if(main_controller->check_cheatcode("ice")) {
 346     tux.set_bonus(ICE_BONUS, false);
 347   }
 348   if(main_controller->check_cheatcode("lifeup")) {
 349     player_status->lives++;
 350   }
 351   if(main_controller->check_cheatcode("lifedown")) {
 352     player_status->lives--;
 353   }
 354   if(main_controller->check_cheatcode("grease")) {
 355     tux.physic.set_velocity_x(tux.physic.get_velocity_x()*3);
 356   }
 357   if(main_controller->check_cheatcode("invincible")) {
 358     // be invincle for the rest of the level
 359     tux.invincible_timer.start(10000);
 360   }
 361   if(main_controller->check_cheatcode("mortal")) {
 362     // give up invincibility
 363     tux.invincible_timer.stop();
 364   }
 365   if(main_controller->check_cheatcode("shrink")) {
 366     // remove powerups
 367     tux.kill(tux.SHRINK);
 368   }
 369   if(main_controller->check_cheatcode("kill")) {
 370     // kill Tux, but without losing a life
 371     player_status->lives++;
 372     tux.kill(tux.KILL);
 373   }
 374   if(main_controller->check_cheatcode("whereami")) {
 375     std::cout << "You are at x " << tux.get_pos().x << ", y " << tux.get_pos().y << "." << std::endl;
 376   }
 377 #if 0
 378   if(main_controller->check_cheatcode("grid")) {
 379     // toggle debug grid
 380     debug_grid = !debug_grid;
 381   }
 382 #endif
 383   if(main_controller->check_cheatcode("gotoend")) {
 384     // goes to the end of the level
 385     tux.move(Vector(
 386           (currentsector->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 387     currentsector->camera->reset(
 388         Vector(tux.get_pos().x, tux.get_pos().y));
 389   }
 390   if(main_controller->check_cheatcode("flip")) {
 391         FlipLevelTransformer flip_transformer;
 392     flip_transformer.transform(GameSession::current()->get_current_level());
 393   }
 394   if(main_controller->check_cheatcode("finish")) {
 395     // finish current sector
 396     exit_status = ES_LEVEL_FINISHED;
 397     // don't add points to stats though...
 398   }
 399 }
 400
 401 void
 402 GameSession::check_end_conditions()
 403 {
 404   Player* tux = currentsector->player;
 405
 406   /* End of level? */
 407   if(end_sequence && endsequence_timer.check()) {
 408     exit_status = ES_LEVEL_FINISHED;
 409
 410     // add time spent to statistics
 411     int tottime = 0, remtime = 0;
 412     for(std::vector<Sector*>::iterator i = level->sectors.begin(); i != level->sectors.end(); ++i)
 413     {
 414       Sector* sec = *i;
 415
 416       for(std::vector<GameObject*>::iterator j = sec->gameobjects.begin();
 417           j != sec->gameobjects.end(); ++j)
 418       {
 419         GameObject* obj = *j;
 420
 421         LevelTime* lt = dynamic_cast<LevelTime*> (obj);
 422         if(lt)
 423         {
 424           tottime += int(lt->get_level_time());
 425           remtime += int(lt->get_remaining_time());
 426         }
 427       }
 428     }
 429     global_stats.set_points(TIME_NEEDED_STAT, (tottime == 0 ? -1 : (tottime-remtime)));
 430
 431     return;
 432   } else if (!end_sequence && tux->is_dead()) {
 433     if (player_status->lives < 0) { // No more lives!?
 434       exit_status = ES_GAME_OVER;
 435     } else { // Still has lives, so reset Tux to the levelstart
 436       restart_level();
 437     }
 438
 439     return;
 440   }
 441 }
 442
 443 void
 444 GameSession::update(float elapsed_time)
 445 {
 446   // handle controller
 447   if(main_controller->pressed(Controller::PAUSE_MENU))
 448     on_escape_press();
 449
 450   // advance timers
 451   if(!currentsector->player->growing_timer.started()) {
 452     // Update Tux and the World
 453     currentsector->update(elapsed_time);
 454   }
 455
 456   // respawning in new sector?
 457   if(newsector != "" && newspawnpoint != "") {
 458     Sector* sector = level->get_sector(newsector);
 459     if(sector == 0) {
 460       std::cerr << "Sector '" << newsector << "' not found.\n";
 461     }
 462     sector->activate(newspawnpoint);
 463     sector->play_music(LEVEL_MUSIC);
 464     currentsector = sector;
 465     newsector = "";
 466     newspawnpoint = "";
 467   }
 468
 469   // update sounds
 470   sound_manager->set_listener_position(currentsector->player->get_pos());
 471 }
 472
 473 void
 474 GameSession::draw()
 475 {
 476   currentsector->draw(*context);
 477   drawstatus(*context);
 478
 479   if(game_pause)
 480     draw_pause();
 481
 482   if(Menu::current()) {
 483     Menu::current()->draw(*context);
 484   }
 485
 486   context->do_drawing();
 487 }
 488
 489 void
 490 GameSession::draw_pause()
 491 {
 492   context->draw_filled_rect(
 493       Vector(0,0), Vector(SCREEN_WIDTH, SCREEN_HEIGHT),
 494       Color(.2, .2, .2, .5), LAYER_FOREGROUND1);
 495 }
 496
 497 void
 498 GameSession::process_menu()
 499 {
 500   Menu* menu = Menu::current();
 501   if(menu) {
 502     menu->update();
 503
 504     if(menu == game_menu) {
 505       switch (game_menu->check()) {
 506         case MNID_CONTINUE:
 507           Menu::set_current(0);
 508           break;
 509         case MNID_ABORTLEVEL:
 510           Menu::set_current(0);
 511           exit_status = ES_LEVEL_ABORT;
 512           break;
 513       }
 514     } else if(menu == options_menu) {
 515       process_options_menu();
 516     } else if(menu == load_game_menu ) {
 517       process_load_game_menu();
 518     }
 519   }
 520 }
 521
 522
 523 GameSession::ExitStatus
 524 GameSession::run()
 525 {
 526   Menu::set_current(0);
 527   current_ = this;
 528
 529   int fps_cnt = 0;
 530
 531   // Eat unneeded events
 532   SDL_Event event;
 533   while(SDL_PollEvent(&event))
 534   {}
 535
 536   draw();
 537
 538   Uint32 fps_ticks = SDL_GetTicks();
 539   Uint32 fps_nextframe_ticks = SDL_GetTicks();
 540   Uint32 ticks;
 541   bool skipdraw = false;
 542
 543   while (exit_status == ES_NONE) {
 544     // we run in a logical framerate so elapsed time is a constant
 545     static const float elapsed_time = 1.0 / LOGICAL_FPS;
 546     // old code... float elapsed_time = float(ticks - lastticks) / 1000.;
 547     if(!game_pause)
 548       game_time += elapsed_time;
 549
 550     // regulate fps
 551     ticks = SDL_GetTicks();
 552     if(ticks > fps_nextframe_ticks) {
 553       if(skipdraw == true) {
 554         // already skipped last frame? we have to slow down the game then...
 555         skipdraw = false;
 556         fps_nextframe_ticks -= (Uint32) (1000.0 / LOGICAL_FPS);
 557       } else {
 558         // don't draw all frames when we're getting too slow
 559         skipdraw = true;
 560       }
 561     } else {
 562       skipdraw = false;
 563       while(fps_nextframe_ticks > ticks) {
 564         /* just wait */
 565         // If we really have to wait long, then do an imprecise SDL_Delay()
 566         Uint32 diff = fps_nextframe_ticks - ticks;
 567         if(diff > 15) {
 568           SDL_Delay(diff - 10);
 569         }
 570         ticks = SDL_GetTicks();
 571       }
 572     }
 573     fps_nextframe_ticks = ticks + (Uint32) (1000.0 / LOGICAL_FPS);
 574
 575 #if 0
 576     float diff = SDL_GetTicks() - fps_nextframe_ticks;
 577     if (diff > 5.0) {
 578          // sets the ticks that must have elapsed
 579         fps_nextframe_ticks = SDL_GetTicks() + (1000.0 / LOGICAL_FPS);
 580     } else {
 581         // sets the ticks that must have elapsed
 582         // in order for the next frame to start.
 583         fps_nextframe_ticks += 1000.0 / LOGICAL_FPS;
 584     }
 585 #endif
 586
 587     process_events();
 588     process_menu();
 589
 590     // Update the world state and all objects in the world
 591     // Do that with a constante time-delta so that the game will run
 592     // determistic and not different on different machines
 593     if(!game_pause && !Menu::current())
 594     {
 595       // Update the world
 596       check_end_conditions();
 597       if (end_sequence == ENDSEQUENCE_RUNNING)
 598         update(elapsed_time/2);
 599       else if(end_sequence == NO_ENDSEQUENCE)
 600         update(elapsed_time);
 601     }
 602     else
 603     {
 604       ++pause_menu_frame;
 605     }
 606
 607     if(!skipdraw)
 608       draw();
 609
 610     // update sounds
 611     sound_manager->update();
 612
 613     /* Time stops in pause mode */
 614     if(game_pause || Menu::current())
 615     {
 616       continue;
 617     }
 618
 619     //frame_rate.update();
 620
 621     /* Handle music: */
 622     if (currentsector->player->invincible_timer.started() &&
 623             currentsector->player->invincible_timer.get_timeleft()
 624             > TUX_INVINCIBLE_TIME_WARNING && !end_sequence)
 625     {
 626       currentsector->play_music(HERRING_MUSIC);
 627     }
 628     /* or just normal music? */
 629     else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 630     {
 631       currentsector->play_music(LEVEL_MUSIC);
 632     }
 633
 634     /* Calculate frames per second */
 635     if(config->show_fps)
 636     {
 637       ++fps_cnt;
 638
 639       if(SDL_GetTicks() - fps_ticks >= 500)
 640       {
 641         fps_fps = (float) fps_cnt / .5;
 642         fps_cnt = 0;
 643         fps_ticks = SDL_GetTicks();
 644       }
 645     }
 646   }
 647
 648   // just in case
 649   currentsector = 0;
 650   main_controller->reset();
 651   return exit_status;
 652 }
 653
 654 void
 655 GameSession::finish(bool win)
 656 {
 657   if(win)
 658     exit_status = ES_LEVEL_FINISHED;
 659   else
 660     exit_status = ES_LEVEL_ABORT;
 661 }
 662
 663 void
 664 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 665 {
 666   newsector = sector;
 667   newspawnpoint = spawnpoint;
 668 }
 669
 670 void
 671 GameSession::set_reset_point(const std::string& sector, const Vector& pos)
 672 {
 673   reset_sector = sector;
 674   reset_pos = pos;
 675 }
 676
 677 std::string
 678 GameSession::get_working_directory()
 679 {
 680   return FileSystem::dirname(levelfile);
 681 }
 682
 683 void
 684 GameSession::display_info_box(const std::string& text)
 685 {
 686   InfoBox* box = new InfoBox(text);
 687
 688   bool running = true;
 689   while(running)  {
 690
 691     main_controller->update();
 692     SDL_Event event;
 693     while (SDL_PollEvent(&event)) {
 694       main_controller->process_event(event);
 695       if(event.type == SDL_QUIT)
 696         throw graceful_shutdown();
 697     }
 698
 699     if(main_controller->pressed(Controller::JUMP)
 700         || main_controller->pressed(Controller::ACTION)
 701         || main_controller->pressed(Controller::PAUSE_MENU)
 702         || main_controller->pressed(Controller::MENU_SELECT))
 703       running = false;
 704     else if(main_controller->pressed(Controller::DOWN))
 705       box->scrolldown();
 706     else if(main_controller->pressed(Controller::UP))
 707       box->scrollup();
 708     box->draw(*context);
 709     draw();
 710     sound_manager->update();
 711   }
 712
 713   delete box;
 714 }
 715
 716 void
 717 GameSession::start_sequence(const std::string& sequencename)
 718 {
 719   if(sequencename == "endsequence" || sequencename == "fireworks") {
 720     if(end_sequence)
 721       return;
 722
 723     end_sequence = ENDSEQUENCE_RUNNING;
 724     endsequence_timer.start(7.0); // 7 seconds until we finish the map
 725     last_x_pos = -1;
 726     sound_manager->play_music("music/leveldone.ogg", false);
 727     currentsector->player->invincible_timer.start(7.0);
 728
 729     if(sequencename == "fireworks") {
 730       currentsector->add_object(new Fireworks());
 731     }
 732   } else if(sequencename == "stoptux") {
 733     if(!end_sequence) {
 734       std::cout << "WARNING: Final target reached without "
 735         << "an active end sequence." << std::endl;
 736       this->start_sequence("endsequence");
 737     }
 738     end_sequence =  ENDSEQUENCE_WAITING;
 739   } else {
 740     std::cout << "Unknown sequence '" << sequencename << "'.\n";
 741   }
 742 }
 743
 744 /* (Status): */
 745 void
 746 GameSession::drawstatus(DrawingContext& context)
 747 {
 748   player_status->draw(context);
 749
 750   if(config->show_fps) {
 751     char str[60];
 752     snprintf(str, sizeof(str), "%3.1f", fps_fps);
 753     context.draw_text(white_text, "FPS",
 754                       Vector(SCREEN_WIDTH -
 755                              white_text->get_text_width("FPS     ") - BORDER_X, BORDER_Y + 40),
 756                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 757     context.draw_text(gold_text, str,
 758                       Vector(SCREEN_WIDTH-4*16 - BORDER_X, BORDER_Y + 40),
 759                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 760   }
 761 }
 762
 763 void
 764 GameSession::drawresultscreen()
 765 {
 766   char str[80];
 767
 768   DrawingContext context;
 769   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 770       i != currentsector->gameobjects.end(); ++i) {
 771     Background* background = dynamic_cast<Background*> (*i);
 772     if(background) {
 773       background->draw(context);
 774     }
 775   }
 776
 777   context.draw_text(blue_text, _("Result:"), Vector(SCREEN_WIDTH/2, 200),
 778       CENTER_ALLIGN, LAYER_FOREGROUND1);
 779
 780 //  sprintf(str, _("SCORE: %d"), global_stats.get_points(SCORE_STAT));
 781 //  context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 782
 783   // y == 256 before removal of score
 784   sprintf(str, _("COINS: %d"), player_status->coins);
 785   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 786
 787   context.do_drawing();
 788
 789   wait_for_event(2.0, 5.0);
 790 }
 791
 792 std::string slotinfo(int slot)
 793 {
 794   std::string tmp;
 795   std::string slotfile;
 796   std::string title;
 797   std::stringstream stream;
 798   stream << slot;
 799   slotfile = "save/slot" + stream.str() + ".stsg";
 800
 801   try {
 802     lisp::Parser parser;
 803     std::auto_ptr<lisp::Lisp> root (parser.parse(slotfile));
 804
 805     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
 806     if(!savegame)
 807       throw std::runtime_error("file is not a supertux-savegame.");
 808
 809     savegame->get("title", title);
 810   } catch(std::exception& e) {
 811     return std::string(_("Slot")) + " " + stream.str() + " - " +
 812       std::string(_("Free"));
 813   }
 814
 815   return std::string("Slot ") + stream.str() + " - " + title;
 816 }
 817
 818 bool process_load_game_menu()
 819 {
 820   int slot = load_game_menu->check();
 821
 822   if(slot == -1)
 823     return false;
 824
 825   if(load_game_menu->get_item_by_id(slot).kind != MN_ACTION)
 826     return false;
 827
 828   std::stringstream stream;
 829   stream << slot;
 830   std::string slotfile = "save/slot" + stream.str() + ".stsg";
 831
 832   sound_manager->stop_music();
 833   fadeout(256);
 834   DrawingContext context;
 835   context.draw_text(white_text, "Loading...",
 836                     Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2),
 837                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 838   context.do_drawing();
 839
 840   WorldMapNS::WorldMap worldmap;
 841
 842   worldmap.set_map_filename("/levels/world1/worldmap.stwm");
 843   // Load the game or at least set the savegame_file variable
 844   worldmap.loadgame(slotfile);
 845
 846   worldmap.display();
 847
 848   Menu::set_current(main_menu);
 849
 850   return true;
 851 }