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   int x = SCREEN_HEIGHT / 20;
 453   for(int i = 0; i < x; ++i) {
 454     context->draw_filled_rect(
 455         Vector(i % 2 ? (pause_menu_frame * i)%SCREEN_WIDTH :
 456           -((pause_menu_frame * i)%SCREEN_WIDTH)
 457           ,(i*20+pause_menu_frame)%SCREEN_HEIGHT),
 458         Vector(SCREEN_WIDTH,10),
 459         Color(0.1, 0.1, 0.1, static_cast<float>(rand() % 20 + 1) / 255.0),
 460         LAYER_FOREGROUND1+1);
 461   }
 462
 463   context->draw_filled_rect(
 464       Vector(0,0), Vector(SCREEN_WIDTH, SCREEN_HEIGHT),
 465       Color(
 466         static_cast<float>(rand() % 50) / 255.0,
 467         static_cast<float>(rand() % 50) / 255.0,
 468         static_cast<float>(rand() % 50) / 255.0,
 469         0.5), LAYER_FOREGROUND1);
 470 #if 0
 471   context->draw_text(blue_text, _("PAUSE - Press 'P' To Play"),
 472       Vector(SCREEN_WIDTH/2, 230), CENTER_ALLIGN, LAYER_FOREGROUND1+2);
 473
 474   const char* str1 = _("Playing: ");
 475   const char* str2 = level->get_name().c_str();
 476
 477   context->draw_text(blue_text, str1,
 478       Vector((SCREEN_WIDTH - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2, 340),
 479       LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 480   context->draw_text(white_text, str2,
 481       Vector(((SCREEN_WIDTH - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2)+blue_text->get_text_width(str1), 340),
 482       LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 483 #endif
 484 }
 485
 486 void
 487 GameSession::process_menu()
 488 {
 489   Menu* menu = Menu::current();
 490   if(menu) {
 491     menu->update();
 492
 493     if(menu == game_menu) {
 494       switch (game_menu->check()) {
 495         case MNID_CONTINUE:
 496           Menu::set_current(0);
 497           break;
 498         case MNID_ABORTLEVEL:
 499           Menu::set_current(0);
 500           exit_status = ES_LEVEL_ABORT;
 501           break;
 502       }
 503     } else if(menu == options_menu) {
 504       process_options_menu();
 505     } else if(menu == load_game_menu ) {
 506       process_load_game_menu();
 507     }
 508   }
 509 }
 510
 511
 512 GameSession::ExitStatus
 513 GameSession::run()
 514 {
 515   Menu::set_current(0);
 516   current_ = this;
 517
 518   int fps_cnt = 0;
 519
 520   // Eat unneeded events
 521   SDL_Event event;
 522   while(SDL_PollEvent(&event))
 523   {}
 524
 525   draw();
 526
 527   Uint32 fps_ticks = SDL_GetTicks();
 528   Uint32 fps_nextframe_ticks = SDL_GetTicks();
 529   Uint32 ticks;
 530   bool skipdraw = false;
 531
 532   while (exit_status == ES_NONE) {
 533     // we run in a logical framerate so elapsed time is a constant
 534     static const float elapsed_time = 1.0 / LOGICAL_FPS;
 535     // old code... float elapsed_time = float(ticks - lastticks) / 1000.;
 536     if(!game_pause)
 537       game_time += elapsed_time;
 538
 539     // regulate fps
 540     ticks = SDL_GetTicks();
 541     if(ticks > fps_nextframe_ticks) {
 542       if(skipdraw == true) {
 543         // already skipped last frame? we have to slow down the game then...
 544         skipdraw = false;
 545         fps_nextframe_ticks -= (Uint32) (1000.0 / LOGICAL_FPS);
 546       } else {
 547         // don't draw all frames when we're getting too slow
 548         skipdraw = true;
 549       }
 550     } else {
 551       skipdraw = false;
 552       while(fps_nextframe_ticks > ticks) {
 553         /* just wait */
 554         // If we really have to wait long, then do an imprecise SDL_Delay()
 555         Uint32 diff = fps_nextframe_ticks - ticks;
 556         if(diff > 15) {
 557           SDL_Delay(diff - 10);
 558         }
 559         ticks = SDL_GetTicks();
 560       }
 561     }
 562     fps_nextframe_ticks = ticks + (Uint32) (1000.0 / LOGICAL_FPS);
 563
 564 #if 0
 565     float diff = SDL_GetTicks() - fps_nextframe_ticks;
 566     if (diff > 5.0) {
 567          // sets the ticks that must have elapsed
 568         fps_nextframe_ticks = SDL_GetTicks() + (1000.0 / LOGICAL_FPS);
 569     } else {
 570         // sets the ticks that must have elapsed
 571         // in order for the next frame to start.
 572         fps_nextframe_ticks += 1000.0 / LOGICAL_FPS;
 573     }
 574 #endif
 575
 576     process_events();
 577     process_menu();
 578
 579     // Update the world state and all objects in the world
 580     // Do that with a constante time-delta so that the game will run
 581     // determistic and not different on different machines
 582     if(!game_pause && !Menu::current())
 583     {
 584       // Update the world
 585       check_end_conditions();
 586       if (end_sequence == ENDSEQUENCE_RUNNING)
 587         update(elapsed_time/2);
 588       else if(end_sequence == NO_ENDSEQUENCE)
 589         update(elapsed_time);
 590     }
 591     else
 592     {
 593       ++pause_menu_frame;
 594     }
 595
 596     if(!skipdraw)
 597       draw();
 598
 599     // update sounds
 600     sound_manager->update();
 601
 602     /* Time stops in pause mode */
 603     if(game_pause || Menu::current())
 604     {
 605       continue;
 606     }
 607
 608     //frame_rate.update();
 609
 610     /* Handle music: */
 611     if (currentsector->player->invincible_timer.started() && !end_sequence)
 612     {
 613       currentsector->play_music(HERRING_MUSIC);
 614     }
 615     /* or just normal music? */
 616     else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 617     {
 618       currentsector->play_music(LEVEL_MUSIC);
 619     }
 620
 621     /* Calculate frames per second */
 622     if(config->show_fps)
 623     {
 624       ++fps_cnt;
 625
 626       if(SDL_GetTicks() - fps_ticks >= 500)
 627       {
 628         fps_fps = (float) fps_cnt / .5;
 629         fps_cnt = 0;
 630         fps_ticks = SDL_GetTicks();
 631       }
 632     }
 633   }
 634
 635   // just in case
 636   currentsector = 0;
 637   main_controller->reset();
 638   return exit_status;
 639 }
 640
 641 void
 642 GameSession::finish(bool win)
 643 {
 644   if(win)
 645     exit_status = ES_LEVEL_FINISHED;
 646   else
 647     exit_status = ES_LEVEL_ABORT;
 648 }
 649
 650 void
 651 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 652 {
 653   newsector = sector;
 654   newspawnpoint = spawnpoint;
 655 }
 656
 657 void
 658 GameSession::set_reset_point(const std::string& sector, const Vector& pos)
 659 {
 660   reset_sector = sector;
 661   reset_pos = pos;
 662 }
 663
 664 std::string
 665 GameSession::get_working_directory()
 666 {
 667   return FileSystem::dirname(levelfile);
 668 }
 669
 670 void
 671 GameSession::display_info_box(const std::string& text)
 672 {
 673   InfoBox* box = new InfoBox(text);
 674
 675   bool running = true;
 676   while(running)  {
 677
 678     main_controller->update();
 679     SDL_Event event;
 680     while (SDL_PollEvent(&event)) {
 681       main_controller->process_event(event);
 682       if(event.type == SDL_QUIT)
 683         throw graceful_shutdown();
 684     }
 685
 686     if(main_controller->pressed(Controller::JUMP)
 687         || main_controller->pressed(Controller::ACTION)
 688         || main_controller->pressed(Controller::PAUSE_MENU)
 689         || main_controller->pressed(Controller::MENU_SELECT))
 690       running = false;
 691     else if(main_controller->pressed(Controller::DOWN))
 692       box->scrolldown();
 693     else if(main_controller->pressed(Controller::UP))
 694       box->scrollup();
 695     box->draw(*context);
 696     draw();
 697     sound_manager->update();
 698   }
 699
 700   delete box;
 701 }
 702
 703 void
 704 GameSession::start_sequence(const std::string& sequencename)
 705 {
 706   if(sequencename == "endsequence" || sequencename == "fireworks") {
 707     if(end_sequence)
 708       return;
 709
 710     end_sequence = ENDSEQUENCE_RUNNING;
 711     endsequence_timer.start(7.0); // 7 seconds until we finish the map
 712     last_x_pos = -1;
 713     sound_manager->play_music("music/leveldone.ogg", false);
 714     currentsector->player->invincible_timer.start(7.0);
 715
 716     if(sequencename == "fireworks") {
 717       currentsector->add_object(new Fireworks());
 718     }
 719   } else if(sequencename == "stoptux") {
 720     end_sequence =  ENDSEQUENCE_WAITING;
 721   } else {
 722     std::cout << "Unknown sequence '" << sequencename << "'.\n";
 723   }
 724 }
 725
 726 /* (Status): */
 727 void
 728 GameSession::drawstatus(DrawingContext& context)
 729 {
 730   player_status->draw(context);
 731
 732   if(config->show_fps) {
 733     char str[60];
 734     snprintf(str, sizeof(str), "%3.1f", fps_fps);
 735     context.draw_text(white_text, "FPS",
 736                       Vector(SCREEN_WIDTH -
 737                              white_text->get_text_width("FPS     ") - BORDER_X, BORDER_Y + 40),
 738                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 739     context.draw_text(gold_text, str,
 740                       Vector(SCREEN_WIDTH-4*16 - BORDER_X, BORDER_Y + 40),
 741                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 742   }
 743 }
 744
 745 void
 746 GameSession::drawresultscreen()
 747 {
 748   char str[80];
 749
 750   DrawingContext context;
 751   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 752       i != currentsector->gameobjects.end(); ++i) {
 753     Background* background = dynamic_cast<Background*> (*i);
 754     if(background) {
 755       background->draw(context);
 756     }
 757   }
 758
 759   context.draw_text(blue_text, _("Result:"), Vector(SCREEN_WIDTH/2, 200),
 760       CENTER_ALLIGN, LAYER_FOREGROUND1);
 761
 762   sprintf(str, _("SCORE: %d"), global_stats.get_points(SCORE_STAT));
 763   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 764
 765   sprintf(str, _("COINS: %d"), player_status->coins);
 766   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 256), CENTER_ALLIGN, LAYER_FOREGROUND1);
 767
 768   context.do_drawing();
 769
 770   wait_for_event(2.0, 5.0);
 771 }
 772
 773 std::string slotinfo(int slot)
 774 {
 775   std::string tmp;
 776   std::string slotfile;
 777   std::string title;
 778   std::stringstream stream;
 779   stream << slot;
 780   slotfile = "save/slot" + stream.str() + ".stsg";
 781
 782   try {
 783     lisp::Parser parser;
 784     std::auto_ptr<lisp::Lisp> root (parser.parse(slotfile));
 785
 786     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
 787     if(!savegame)
 788       throw std::runtime_error("file is not a supertux-savegame.");
 789
 790     savegame->get("title", title);
 791   } catch(std::exception& e) {
 792     return std::string(_("Slot")) + " " + stream.str() + " - " +
 793       std::string(_("Free"));
 794   }
 795
 796   return std::string("Slot ") + stream.str() + " - " + title;
 797 }
 798
 799 bool process_load_game_menu()
 800 {
 801   int slot = load_game_menu->check();
 802
 803   if(slot == -1)
 804     return false;
 805
 806   if(load_game_menu->get_item_by_id(slot).kind != MN_ACTION)
 807     return false;
 808
 809   std::stringstream stream;
 810   stream << slot;
 811   std::string slotfile = "save/slot" + stream.str() + ".stsg";
 812
 813   sound_manager->stop_music();
 814   fadeout(256);
 815   DrawingContext context;
 816   context.draw_text(white_text, "Loading...",
 817                     Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2),
 818                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 819   context.do_drawing();
 820
 821   WorldMapNS::WorldMap worldmap;
 822
 823   worldmap.set_map_filename("/levels/world1/worldmap.stwm");
 824   // Load the game or at least set the savegame_file variable
 825   worldmap.loadgame(slotfile);
 826
 827   worldmap.display();
 828
 829   Menu::set_current(main_menu);
 830
 831   return true;
 832 }