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