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 <fstream>
  24 #include <sstream>
  25 #include <cassert>
  26 #include <cstdio>
  27 #include <cstdlib>
  28 #include <cmath>
  29 #include <cstring>
  30 #include <cerrno>
  31 #include <unistd.h>
  32 #include <ctime>
  33 #include <stdexcept>
  34
  35 #include <SDL.h>
  36
  37 #include "game_session.hpp"
  38 #include "msg.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/gradient.hpp"
  49 #include "object/tilemap.hpp"
  50 #include "object/camera.hpp"
  51 #include "object/player.hpp"
  52 #include "object/level_time.hpp"
  53 #include "lisp/lisp.hpp"
  54 #include "lisp/parser.hpp"
  55 #include "resources.hpp"
  56 #include "worldmap.hpp"
  57 #include "misc.hpp"
  58 #include "statistics.hpp"
  59 #include "timer.hpp"
  60 #include "object/fireworks.hpp"
  61 #include "textscroller.hpp"
  62 #include "control/codecontroller.hpp"
  63 #include "control/joystickkeyboardcontroller.hpp"
  64 #include "main.hpp"
  65 #include "file_system.hpp"
  66 #include "gameconfig.hpp"
  67 #include "gettext.hpp"
  68 #include "exceptions.hpp"
  69 #include "flip_level_transformer.hpp"
  70
  71 // the engine will be run with a logical framerate of 64fps.
  72 // We chose 64fps here because it is a power of 2, so 1/64 gives an "even"
  73 // binary fraction...
  74 static const float LOGICAL_FPS = 64.0;
  75
  76 GameSession* GameSession::current_ = 0;
  77
  78 GameSession::GameSession(const std::string& levelfile_, GameSessionMode mode,
  79     Statistics* statistics)
  80   : level(0), currentsector(0), mode(mode),
  81     end_sequence(NO_ENDSEQUENCE), end_sequence_controller(0),
  82     levelfile(levelfile_), best_level_statistics(statistics),
  83     capture_demo_stream(0), playback_demo_stream(0), demo_controller(0)
  84 {
  85   current_ = this;
  86   currentsector = 0;
  87
  88   game_pause = false;
  89   fps_fps = 0;
  90
  91   context = new DrawingContext();
  92   console = new Console(context);
  93   Console::registerCommandReceiver(this);
  94
  95   restart_level();
  96 }
  97
  98 void
  99 GameSession::restart_level()
 100 {
 101   game_pause   = false;
 102   exit_status  = ES_NONE;
 103   end_sequence = NO_ENDSEQUENCE;
 104
 105   main_controller->reset();
 106
 107   delete level;
 108   currentsector = 0;
 109
 110   level = new Level;
 111   level->load(levelfile);
 112
 113   global_stats.reset();
 114   global_stats.set_total_points(COINS_COLLECTED_STAT, level->get_total_coins());
 115   global_stats.set_total_points(BADGUYS_KILLED_STAT, level->get_total_badguys());
 116
 117   // get time
 118   int time = 0;
 119   for(std::vector<Sector*>::iterator i = level->sectors.begin(); i != level->sectors.end(); ++i)
 120   {
 121     Sector* sec = *i;
 122
 123     for(std::vector<GameObject*>::iterator j = sec->gameobjects.begin();
 124         j != sec->gameobjects.end(); ++j)
 125     {
 126       GameObject* obj = *j;
 127
 128       LevelTime* lt = dynamic_cast<LevelTime*> (obj);
 129       if(lt)
 130         time += int(lt->get_level_time());
 131     }
 132   }
 133   global_stats.set_total_points(TIME_NEEDED_STAT, (time == 0) ? -1 : time);
 134
 135   if(reset_sector != "") {
 136     currentsector = level->get_sector(reset_sector);
 137     if(!currentsector) {
 138       std::stringstream msg;
 139       msg << "Couldn't find sector '" << reset_sector << "' for resetting tux.";
 140       throw std::runtime_error(msg.str());
 141     }
 142     currentsector->activate(reset_pos);
 143   } else {
 144     currentsector = level->get_sector("main");
 145     if(!currentsector)
 146       throw std::runtime_error("Couldn't find main sector");
 147     currentsector->activate("main");
 148   }
 149
 150   if(mode == ST_GL_PLAY || mode == ST_GL_LOAD_LEVEL_FILE)
 151     levelintro();
 152
 153   currentsector->play_music(LEVEL_MUSIC);
 154
 155   if(capture_file != "")
 156     record_demo(capture_file);
 157 }
 158
 159 GameSession::~GameSession()
 160 {
 161   delete capture_demo_stream;
 162   delete playback_demo_stream;
 163   delete demo_controller;
 164
 165   delete end_sequence_controller;
 166   delete level;
 167   delete context;
 168   Console::unregisterCommandReceiver(this);
 169   delete console;
 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   sound_manager->stop_music();
 212
 213   DrawingContext context;
 214   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 215       i != currentsector->gameobjects.end(); ++i) {
 216     Background* background = dynamic_cast<Background*> (*i);
 217     if(background) {
 218       background->draw(context);
 219     }
 220     Gradient* gradient = dynamic_cast<Gradient*> (*i);
 221     if(gradient) {
 222       gradient->draw(context);
 223     }
 224   }
 225
 226 //  context.draw_text(gold_text, level->get_name(), Vector(SCREEN_WIDTH/2, 160),
 227 //      CENTER_ALLIGN, LAYER_FOREGROUND1);
 228   context.draw_center_text(gold_text, level->get_name(), Vector(0, 160),
 229       LAYER_FOREGROUND1);
 230
 231   sprintf(str, "TUX x %d", player_status->lives);
 232   context.draw_text(white_text, str, Vector(SCREEN_WIDTH/2, 210),
 233       CENTER_ALLIGN, LAYER_FOREGROUND1);
 234
 235   if((level->get_author().size()) && (level->get_author() != "SuperTux Team"))
 236     //TODO make author check case/blank-insensitive
 237     context.draw_text(white_small_text,
 238       std::string(_("contributed by ")) + level->get_author(),
 239       Vector(SCREEN_WIDTH/2, 350), CENTER_ALLIGN, LAYER_FOREGROUND1);
 240
 241
 242   if(best_level_statistics != NULL)
 243     best_level_statistics->draw_message_info(context, _("Best Level Statistics"));
 244
 245   console->draw();
 246   context.do_drawing();
 247
 248   wait_for_event(1.0, 3.0);
 249 }
 250
 251 void
 252 GameSession::on_escape_press()
 253 {
 254   if(currentsector->player->is_dying() || end_sequence != NO_ENDSEQUENCE)
 255     return;   // don't let the player open the menu, when he is dying
 256
 257   if(mode == ST_GL_TEST) {
 258     exit_status = ES_LEVEL_ABORT;
 259   } else if (!Menu::current()) {
 260     Menu::set_current(game_menu);
 261     game_menu->set_active_item(MNID_CONTINUE);
 262     game_pause = true;
 263   } else {
 264     game_pause = false;
 265   }
 266 }
 267
 268 void
 269 GameSession::process_events()
 270 {
 271   Player& tux = *currentsector->player;
 272   main_controller->update();
 273
 274   // end of pause mode?
 275   if(!Menu::current() && game_pause) {
 276     game_pause = false;
 277   }
 278
 279   if (end_sequence != NO_ENDSEQUENCE) {
 280     if(end_sequence_controller == 0) {
 281       end_sequence_controller = new CodeController();
 282       tux.set_controller(end_sequence_controller);
 283     }
 284
 285     end_sequence_controller->press(Controller::RIGHT);
 286
 287     if (int(last_x_pos) == int(tux.get_pos().x))
 288       end_sequence_controller->press(Controller::JUMP);
 289     last_x_pos = tux.get_pos().x;
 290   }
 291
 292   main_controller->update();
 293   SDL_Event event;
 294   while (SDL_PollEvent(&event)) {
 295     /* Check for menu-events, if the menu is shown */
 296     if (Menu::current())
 297       Menu::current()->event(event);
 298     main_controller->process_event(event);
 299     if(event.type == SDL_QUIT)
 300       throw graceful_shutdown();
 301   }
 302
 303   // playback a demo?
 304   if(playback_demo_stream != 0) {
 305     demo_controller->update();
 306     char left = false;
 307     char right = false;
 308     char up = false;
 309     char down = false;
 310     char jump = false;
 311     char action = false;
 312     playback_demo_stream->get(left);
 313     playback_demo_stream->get(right);
 314     playback_demo_stream->get(up);
 315     playback_demo_stream->get(down);
 316     playback_demo_stream->get(jump);
 317     playback_demo_stream->get(action);
 318     demo_controller->press(Controller::LEFT, left);
 319     demo_controller->press(Controller::RIGHT, right);
 320     demo_controller->press(Controller::UP, up);
 321     demo_controller->press(Controller::DOWN, down);
 322     demo_controller->press(Controller::JUMP, jump);
 323     demo_controller->press(Controller::ACTION, action);
 324   }
 325
 326   // save input for demo?
 327   if(capture_demo_stream != 0) {
 328     capture_demo_stream ->put(main_controller->hold(Controller::LEFT));
 329     capture_demo_stream ->put(main_controller->hold(Controller::RIGHT));
 330     capture_demo_stream ->put(main_controller->hold(Controller::UP));
 331     capture_demo_stream ->put(main_controller->hold(Controller::DOWN));
 332     capture_demo_stream ->put(main_controller->hold(Controller::JUMP));
 333     capture_demo_stream ->put(main_controller->hold(Controller::ACTION));
 334   }
 335 }
 336
 337 bool
 338 GameSession::consoleCommand(std::string command)
 339 {
 340   if (command == "foo") {
 341     msg_info("bar");
 342     return true;
 343   }
 344
 345   if (currentsector == 0) return false;
 346   Player& tux = *currentsector->player;
 347
 348   // Cheating words (the goal of this is really for debugging,
 349   // but could be used for some cheating, nothing wrong with that)
 350   if (command == "grow") {
 351     tux.set_bonus(GROWUP_BONUS, false);
 352     return true;
 353   }
 354   if (command == "fire") {
 355     tux.set_bonus(FIRE_BONUS, false);
 356     return true;
 357   }
 358   if (command == "ice") {
 359     tux.set_bonus(ICE_BONUS, false);
 360     return true;
 361   }
 362   if (command == "lifeup") {
 363     player_status->lives++;
 364     return true;
 365   }
 366   if (command == "lifedown") {
 367     player_status->lives--;
 368     return true;
 369   }
 370   if (command == "grease") {
 371     tux.physic.set_velocity_x(tux.physic.get_velocity_x()*3);
 372     return true;
 373   }
 374   if (command == "invincible") {
 375     // be invincle for the rest of the level
 376     tux.invincible_timer.start(10000);
 377     return true;
 378   }
 379   if (command == "mortal") {
 380     // give up invincibility
 381     tux.invincible_timer.stop();
 382     return true;
 383   }
 384   if (command == "shrink") {
 385     // remove powerups
 386     tux.kill(tux.SHRINK);
 387     return true;
 388   }
 389   if (command == "kill") {
 390     // kill Tux, but without losing a life
 391     player_status->lives++;
 392     tux.kill(tux.KILL);
 393     return true;
 394   }
 395   if (command == "whereami") {
 396     msg_info("You are at x " << tux.get_pos().x << ", y " << tux.get_pos().y);
 397     return true;
 398   }
 399 #if 0
 400   if(command == "grid")) {
 401     // toggle debug grid
 402     debug_grid = !debug_grid;
 403     return true;
 404   }
 405 #endif
 406   if (command == "gotoend") {
 407     // goes to the end of the level
 408     tux.move(Vector(
 409           (currentsector->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 410     currentsector->camera->reset(
 411         Vector(tux.get_pos().x, tux.get_pos().y));
 412     return true;
 413   }
 414   if (command == "flip") {
 415         FlipLevelTransformer flip_transformer;
 416     flip_transformer.transform(GameSession::current()->get_current_level());
 417     return true;
 418   }
 419   if (command == "finish") {
 420     // finish current sector
 421     exit_status = ES_LEVEL_FINISHED;
 422     // don't add points to stats though...
 423     return true;
 424   }
 425   if (command == "camera") {
 426     msg_info("Camera is at "
 427               << Sector::current()->camera->get_translation().x << ","
 428               << Sector::current()->camera->get_translation().y);
 429     return true;
 430   }
 431
 432   return false;
 433 }
 434
 435 void
 436 GameSession::check_end_conditions()
 437 {
 438   Player* tux = currentsector->player;
 439
 440   /* End of level? */
 441   if(end_sequence && endsequence_timer.check()) {
 442     exit_status = ES_LEVEL_FINISHED;
 443
 444     // add time spent to statistics
 445     int tottime = 0, remtime = 0;
 446     for(std::vector<Sector*>::iterator i = level->sectors.begin(); i != level->sectors.end(); ++i)
 447     {
 448       Sector* sec = *i;
 449
 450       for(std::vector<GameObject*>::iterator j = sec->gameobjects.begin();
 451           j != sec->gameobjects.end(); ++j)
 452       {
 453         GameObject* obj = *j;
 454
 455         LevelTime* lt = dynamic_cast<LevelTime*> (obj);
 456         if(lt)
 457         {
 458           tottime += int(lt->get_level_time());
 459           remtime += int(lt->get_remaining_time());
 460         }
 461       }
 462     }
 463     global_stats.set_points(TIME_NEEDED_STAT, (tottime == 0 ? -1 : (tottime-remtime)));
 464
 465     return;
 466   } else if (!end_sequence && tux->is_dead()) {
 467     if (player_status->lives < 0) { // No more lives!?
 468       exit_status = ES_GAME_OVER;
 469     } else { // Still has lives, so reset Tux to the levelstart
 470       restart_level();
 471     }
 472
 473     return;
 474   }
 475 }
 476
 477 void
 478 GameSession::update(float elapsed_time)
 479 {
 480   // handle controller
 481   if(main_controller->pressed(Controller::PAUSE_MENU))
 482     on_escape_press();
 483
 484   // advance timers
 485   if(!currentsector->player->growing_timer.started()) {
 486     // Update Tux and the World
 487     currentsector->update(elapsed_time);
 488   }
 489
 490   // respawning in new sector?
 491   if(newsector != "" && newspawnpoint != "") {
 492     Sector* sector = level->get_sector(newsector);
 493     if(sector == 0) {
 494       msg_warning("Sector '" << newsector << "' not found");
 495     }
 496     sector->activate(newspawnpoint);
 497     sector->play_music(LEVEL_MUSIC);
 498     currentsector = sector;
 499     newsector = "";
 500     newspawnpoint = "";
 501   }
 502
 503   // update sounds
 504   sound_manager->set_listener_position(currentsector->player->get_pos());
 505 }
 506
 507 void
 508 GameSession::draw()
 509 {
 510   currentsector->draw(*context);
 511   drawstatus(*context);
 512
 513   if(game_pause)
 514     draw_pause();
 515
 516   if(Menu::current()) {
 517     Menu::current()->draw(*context);
 518   }
 519
 520   console->draw();
 521   context->do_drawing();
 522 }
 523
 524 void
 525 GameSession::draw_pause()
 526 {
 527   context->draw_filled_rect(
 528       Vector(0,0), Vector(SCREEN_WIDTH, SCREEN_HEIGHT),
 529       Color(.2, .2, .2, .5), LAYER_FOREGROUND1);
 530 }
 531
 532 void
 533 GameSession::process_menu()
 534 {
 535   Menu* menu = Menu::current();
 536   if(menu) {
 537     menu->update();
 538
 539     if(menu == game_menu) {
 540       switch (game_menu->check()) {
 541         case MNID_CONTINUE:
 542           Menu::set_current(0);
 543           break;
 544         case MNID_ABORTLEVEL:
 545           Menu::set_current(0);
 546           exit_status = ES_LEVEL_ABORT;
 547           break;
 548       }
 549     } else if(menu == options_menu) {
 550       process_options_menu();
 551     } else if(menu == load_game_menu ) {
 552       process_load_game_menu();
 553     }
 554   }
 555 }
 556
 557
 558 GameSession::ExitStatus
 559 GameSession::run()
 560 {
 561   Menu::set_current(0);
 562   current_ = this;
 563
 564   int fps_cnt = 0;
 565
 566   // Eat unneeded events
 567   SDL_Event event;
 568   while(SDL_PollEvent(&event))
 569   {}
 570
 571   draw();
 572
 573   Uint32 fps_ticks = SDL_GetTicks();
 574   Uint32 fps_nextframe_ticks = SDL_GetTicks();
 575   Uint32 ticks;
 576   bool skipdraw = false;
 577
 578   while (exit_status == ES_NONE) {
 579     // we run in a logical framerate so elapsed time is a constant
 580     static const float elapsed_time = 1.0 / LOGICAL_FPS;
 581     // old code... float elapsed_time = float(ticks - lastticks) / 1000.;
 582     if(!game_pause)
 583       game_time += elapsed_time;
 584
 585     // regulate fps
 586     ticks = SDL_GetTicks();
 587     if(ticks > fps_nextframe_ticks) {
 588       if(skipdraw == true) {
 589         // already skipped last frame? we have to slow down the game then...
 590         skipdraw = false;
 591         fps_nextframe_ticks -= (Uint32) (1000.0 / LOGICAL_FPS);
 592       } else {
 593         // don't draw all frames when we're getting too slow
 594         skipdraw = true;
 595       }
 596     } else {
 597       skipdraw = false;
 598       while(fps_nextframe_ticks > ticks) {
 599         /* just wait */
 600         // If we really have to wait long, then do an imprecise SDL_Delay()
 601         Uint32 diff = fps_nextframe_ticks - ticks;
 602         if(diff > 15) {
 603           SDL_Delay(diff - 10);
 604         }
 605         ticks = SDL_GetTicks();
 606       }
 607     }
 608     fps_nextframe_ticks = ticks + (Uint32) (1000.0 / LOGICAL_FPS);
 609
 610 #if 0
 611     float diff = SDL_GetTicks() - fps_nextframe_ticks;
 612     if (diff > 5.0) {
 613          // sets the ticks that must have elapsed
 614         fps_nextframe_ticks = SDL_GetTicks() + (1000.0 / LOGICAL_FPS);
 615     } else {
 616         // sets the ticks that must have elapsed
 617         // in order for the next frame to start.
 618         fps_nextframe_ticks += 1000.0 / LOGICAL_FPS;
 619     }
 620 #endif
 621
 622     process_events();
 623     process_menu();
 624
 625     // Update the world state and all objects in the world
 626     // Do that with a constante time-delta so that the game will run
 627     // determistic and not different on different machines
 628     if(!game_pause && !Menu::current())
 629     {
 630       // Update the world
 631       check_end_conditions();
 632       if (end_sequence == ENDSEQUENCE_RUNNING)
 633         update(elapsed_time/2);
 634       else if(end_sequence == NO_ENDSEQUENCE)
 635         update(elapsed_time);
 636     }
 637     else
 638     {
 639       ++pause_menu_frame;
 640     }
 641
 642     if(!skipdraw)
 643       draw();
 644
 645     // update sounds
 646     sound_manager->update();
 647
 648     /* Time stops in pause mode */
 649     if(game_pause || Menu::current())
 650     {
 651       continue;
 652     }
 653
 654     //frame_rate.update();
 655
 656     /* Handle music: */
 657     if (currentsector->player->invincible_timer.started() &&
 658             currentsector->player->invincible_timer.get_timeleft()
 659             > TUX_INVINCIBLE_TIME_WARNING && !end_sequence)
 660     {
 661       currentsector->play_music(HERRING_MUSIC);
 662     }
 663     /* or just normal music? */
 664     else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 665     {
 666       currentsector->play_music(LEVEL_MUSIC);
 667     }
 668
 669     /* Calculate frames per second */
 670     if(config->show_fps)
 671     {
 672       ++fps_cnt;
 673
 674       if(SDL_GetTicks() - fps_ticks >= 500)
 675       {
 676         fps_fps = (float) fps_cnt / .5;
 677         fps_cnt = 0;
 678         fps_ticks = SDL_GetTicks();
 679       }
 680     }
 681   }
 682
 683   // just in case
 684   currentsector = 0;
 685   main_controller->reset();
 686   return exit_status;
 687 }
 688
 689 void
 690 GameSession::finish(bool win)
 691 {
 692   if(win)
 693     exit_status = ES_LEVEL_FINISHED;
 694   else
 695     exit_status = ES_LEVEL_ABORT;
 696 }
 697
 698 void
 699 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 700 {
 701   newsector = sector;
 702   newspawnpoint = spawnpoint;
 703 }
 704
 705 void
 706 GameSession::set_reset_point(const std::string& sector, const Vector& pos)
 707 {
 708   reset_sector = sector;
 709   reset_pos = pos;
 710 }
 711
 712 std::string
 713 GameSession::get_working_directory()
 714 {
 715   return FileSystem::dirname(levelfile);
 716 }
 717
 718 void
 719 GameSession::display_info_box(const std::string& text)
 720 {
 721   InfoBox* box = new InfoBox(text);
 722
 723   bool running = true;
 724   while(running)  {
 725
 726     main_controller->update();
 727     SDL_Event event;
 728     while (SDL_PollEvent(&event)) {
 729       main_controller->process_event(event);
 730       if(event.type == SDL_QUIT)
 731         throw graceful_shutdown();
 732     }
 733
 734     if(main_controller->pressed(Controller::JUMP)
 735         || main_controller->pressed(Controller::ACTION)
 736         || main_controller->pressed(Controller::PAUSE_MENU)
 737         || main_controller->pressed(Controller::MENU_SELECT))
 738       running = false;
 739     else if(main_controller->pressed(Controller::DOWN))
 740       box->scrolldown();
 741     else if(main_controller->pressed(Controller::UP))
 742       box->scrollup();
 743     box->draw(*context);
 744     draw();
 745     sound_manager->update();
 746   }
 747
 748   delete box;
 749 }
 750
 751 void
 752 GameSession::start_sequence(const std::string& sequencename)
 753 {
 754   if(sequencename == "endsequence" || sequencename == "fireworks") {
 755     if(end_sequence)
 756       return;
 757
 758     end_sequence = ENDSEQUENCE_RUNNING;
 759     endsequence_timer.start(7.3);
 760     last_x_pos = -1;
 761     sound_manager->play_music("music/leveldone.ogg", false);
 762     currentsector->player->invincible_timer.start(7.3);
 763
 764     // Stop all clocks.
 765     for(std::vector<GameObject*>::iterator i = currentsector->gameobjects.begin();
 766         i != currentsector->gameobjects.end(); ++i)
 767     {
 768       GameObject* obj = *i;
 769
 770       LevelTime* lt = dynamic_cast<LevelTime*> (obj);
 771       if(lt)
 772         lt->stop();
 773     }
 774
 775     if(sequencename == "fireworks") {
 776       currentsector->add_object(new Fireworks());
 777     }
 778   } else if(sequencename == "stoptux") {
 779     if(!end_sequence) {
 780       msg_warning("Final target reached without "
 781         << "an active end sequence");
 782       this->start_sequence("endsequence");
 783     }
 784     end_sequence =  ENDSEQUENCE_WAITING;
 785   } else {
 786     msg_warning("Unknown sequence '" << sequencename << "'");
 787   }
 788 }
 789
 790 /* (Status): */
 791 void
 792 GameSession::drawstatus(DrawingContext& context)
 793 {
 794   player_status->draw(context);
 795
 796   if(config->show_fps) {
 797     char str[60];
 798     snprintf(str, sizeof(str), "%3.1f", fps_fps);
 799     context.draw_text(white_text, "FPS",
 800                       Vector(SCREEN_WIDTH -
 801                              white_text->get_text_width("FPS     ") - BORDER_X, BORDER_Y + 40),
 802                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 803     context.draw_text(gold_text, str,
 804                       Vector(SCREEN_WIDTH-4*16 - BORDER_X, BORDER_Y + 40),
 805                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 806   }
 807 }
 808
 809 void
 810 GameSession::drawresultscreen()
 811 {
 812   char str[80];
 813
 814   DrawingContext context;
 815   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 816       i != currentsector->gameobjects.end(); ++i) {
 817     Background* background = dynamic_cast<Background*> (*i);
 818     if(background) {
 819       background->draw(context);
 820     }
 821   }
 822
 823   context.draw_text(blue_text, _("Result:"), Vector(SCREEN_WIDTH/2, 200),
 824       CENTER_ALLIGN, LAYER_FOREGROUND1);
 825
 826 //  sprintf(str, _("SCORE: %d"), global_stats.get_points(SCORE_STAT));
 827 //  context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 828
 829   // y == 256 before removal of score
 830   sprintf(str, _("COINS: %d"), player_status->coins);
 831   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 832
 833   console->draw();
 834   context.do_drawing();
 835
 836   wait_for_event(2.0, 5.0);
 837 }
 838
 839 std::string slotinfo(int slot)
 840 {
 841   std::string tmp;
 842   std::string slotfile;
 843   std::string title;
 844   std::stringstream stream;
 845   stream << slot;
 846   slotfile = "save/slot" + stream.str() + ".stsg";
 847
 848   try {
 849     lisp::Parser parser;
 850     std::auto_ptr<lisp::Lisp> root (parser.parse(slotfile));
 851
 852     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
 853     if(!savegame)
 854       throw std::runtime_error("file is not a supertux-savegame.");
 855
 856     savegame->get("title", title);
 857   } catch(std::exception& e) {
 858     return std::string(_("Slot")) + " " + stream.str() + " - " +
 859       std::string(_("Free"));
 860   }
 861
 862   return std::string("Slot ") + stream.str() + " - " + title;
 863 }
 864
 865 bool process_load_game_menu()
 866 {
 867   int slot = load_game_menu->check();
 868
 869   if(slot == -1)
 870     return false;
 871
 872   if(load_game_menu->get_item_by_id(slot).kind != MN_ACTION)
 873     return false;
 874
 875   std::stringstream stream;
 876   stream << slot;
 877   std::string slotfile = "save/slot" + stream.str() + ".stsg";
 878
 879   sound_manager->stop_music();
 880   fadeout(256);
 881   DrawingContext context;
 882   context.draw_text(white_text, "Loading...",
 883                     Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2),
 884                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 885   context.do_drawing();
 886
 887   WorldMapNS::WorldMap worldmap;
 888
 889   worldmap.set_map_filename("/levels/world1/worldmap.stwm");
 890   // Load the game or at least set the savegame_file variable
 891   worldmap.loadgame(slotfile);
 892
 893   worldmap.display();
 894
 895   Menu::set_current(main_menu);
 896
 897   return true;
 898 }