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
  68 // the engine will be run with a logical framerate of 64fps.
  69 // We chose 64fps here because it is a power of 2, so 1/64 gives an "even"
  70 // binary fraction...
  71 static const float LOGICAL_FPS = 64.0;
  72
  73 GameSession* GameSession::current_ = 0;
  74
  75 GameSession::GameSession(const std::string& levelfile_, GameSessionMode mode,
  76     Statistics* statistics)
  77   : level(0), currentsector(0), mode(mode),
  78     end_sequence(NO_ENDSEQUENCE), end_sequence_controller(0),
  79     levelfile(levelfile_), best_level_statistics(statistics),
  80     capture_demo_stream(0), playback_demo_stream(0), demo_controller(0)
  81 {
  82   current_ = this;
  83   currentsector = 0;
  84
  85   game_pause = false;
  86   music_playing = false;
  87   fps_fps = 0;
  88
  89   context = new DrawingContext();
  90
  91   restart_level();
  92 }
  93
  94 void
  95 GameSession::restart_level()
  96 {
  97   game_pause   = false;
  98   exit_status  = ES_NONE;
  99   end_sequence = NO_ENDSEQUENCE;
 100
 101   main_controller->reset();
 102
 103   delete level;
 104   currentsector = 0;
 105
 106   level = new Level;
 107   level->load(levelfile);
 108
 109   global_stats.reset();
 110   global_stats.set_total_points(COINS_COLLECTED_STAT, level->get_total_coins());
 111   global_stats.set_total_points(BADGUYS_KILLED_STAT, level->get_total_badguys());
 112   //global_stats.set_total_points(TIME_NEEDED_STAT, level->timelimit);
 113
 114   if(reset_sector != "") {
 115     currentsector = level->get_sector(reset_sector);
 116     if(!currentsector) {
 117       std::stringstream msg;
 118       msg << "Couldn't find sector '" << reset_sector << "' for resetting tux.";
 119       throw std::runtime_error(msg.str());
 120     }
 121     currentsector->activate(reset_pos);
 122   } else {
 123     currentsector = level->get_sector("main");
 124     if(!currentsector)
 125       throw std::runtime_error("Couldn't find main sector");
 126     currentsector->activate("main");
 127   }
 128
 129   if(mode == ST_GL_PLAY || mode == ST_GL_LOAD_LEVEL_FILE)
 130     levelintro();
 131
 132   if (!music_playing)
 133   {
 134     currentsector->play_music(LEVEL_MUSIC);
 135     music_playing = true;
 136   }
 137
 138   if(capture_file != "")
 139     record_demo(capture_file);
 140 }
 141
 142 GameSession::~GameSession()
 143 {
 144   delete capture_demo_stream;
 145   delete playback_demo_stream;
 146   delete demo_controller;
 147
 148   delete end_sequence_controller;
 149   delete level;
 150   delete context;
 151
 152   current_ = NULL;
 153 }
 154
 155 void
 156 GameSession::record_demo(const std::string& filename)
 157 {
 158   delete capture_demo_stream;
 159
 160   capture_demo_stream = new std::ofstream(filename.c_str());
 161   if(!capture_demo_stream->good()) {
 162     std::stringstream msg;
 163     msg << "Couldn't open demo file '" << filename << "' for writing.";
 164     throw std::runtime_error(msg.str());
 165   }
 166   capture_file = filename;
 167 }
 168
 169 void
 170 GameSession::play_demo(const std::string& filename)
 171 {
 172   delete playback_demo_stream;
 173   delete demo_controller;
 174
 175   playback_demo_stream = new std::ifstream(filename.c_str());
 176   if(!playback_demo_stream->good()) {
 177     std::stringstream msg;
 178     msg << "Couldn't open demo file '" << filename << "' for reading.";
 179     throw std::runtime_error(msg.str());
 180   }
 181
 182   Player& tux = *currentsector->player;
 183   demo_controller = new CodeController();
 184   tux.set_controller(demo_controller);
 185 }
 186
 187 void
 188 GameSession::levelintro()
 189 {
 190   char str[60];
 191
 192   DrawingContext context;
 193   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 194       i != currentsector->gameobjects.end(); ++i) {
 195     Background* background = dynamic_cast<Background*> (*i);
 196     if(background) {
 197       background->draw(context);
 198     }
 199   }
 200
 201 //  context.draw_text(gold_text, level->get_name(), Vector(SCREEN_WIDTH/2, 160),
 202 //      CENTER_ALLIGN, LAYER_FOREGROUND1);
 203   context.draw_center_text(gold_text, level->get_name(), Vector(0, 160),
 204       LAYER_FOREGROUND1);
 205
 206   sprintf(str, "TUX x %d", player_status->lives);
 207   context.draw_text(white_text, str, Vector(SCREEN_WIDTH/2, 210),
 208       CENTER_ALLIGN, LAYER_FOREGROUND1);
 209
 210   if((level->get_author().size()) && (level->get_author() != "SuperTux Team"))
 211     //TODO make author check case/blank-insensitive
 212     context.draw_text(white_small_text,
 213       std::string(_("contributed by ")) + level->get_author(),
 214       Vector(SCREEN_WIDTH/2, 350), CENTER_ALLIGN, LAYER_FOREGROUND1);
 215
 216
 217   if(best_level_statistics != NULL)
 218     best_level_statistics->draw_message_info(context, _("Best Level Statistics"));
 219
 220   context.do_drawing();
 221
 222   wait_for_event(1.0, 3.0);
 223 }
 224
 225 void
 226 GameSession::on_escape_press()
 227 {
 228   if(currentsector->player->is_dying() || end_sequence != NO_ENDSEQUENCE)
 229     return;   // don't let the player open the menu, when he is dying
 230
 231   if(mode == ST_GL_TEST) {
 232     exit_status = ES_LEVEL_ABORT;
 233   } else if (!Menu::current()) {
 234     Menu::set_current(game_menu);
 235     game_menu->set_active_item(MNID_CONTINUE);
 236     game_pause = true;
 237   } else {
 238     game_pause = false;
 239   }
 240 }
 241
 242 void
 243 GameSession::process_events()
 244 {
 245   Player& tux = *currentsector->player;
 246   main_controller->update();
 247
 248   // end of pause mode?
 249   if(!Menu::current() && game_pause) {
 250     game_pause = false;
 251   }
 252
 253   if (end_sequence != NO_ENDSEQUENCE) {
 254     if(end_sequence_controller == 0) {
 255       end_sequence_controller = new CodeController();
 256       tux.set_controller(end_sequence_controller);
 257     }
 258
 259     end_sequence_controller->press(Controller::RIGHT);
 260
 261     if (int(last_x_pos) == int(tux.get_pos().x))
 262       end_sequence_controller->press(Controller::JUMP);
 263     last_x_pos = tux.get_pos().x;
 264   }
 265
 266   main_controller->update();
 267   SDL_Event event;
 268   while (SDL_PollEvent(&event)) {
 269     /* Check for menu-events, if the menu is shown */
 270     if (Menu::current())
 271       Menu::current()->event(event);
 272     main_controller->process_event(event);
 273     if(event.type == SDL_QUIT)
 274       throw graceful_shutdown();
 275   }
 276
 277   // playback a demo?
 278   if(playback_demo_stream != 0) {
 279     demo_controller->update();
 280     char left = false;
 281     char right = false;
 282     char up = false;
 283     char down = false;
 284     char jump = false;
 285     char action = false;
 286     playback_demo_stream->get(left);
 287     playback_demo_stream->get(right);
 288     playback_demo_stream->get(up);
 289     playback_demo_stream->get(down);
 290     playback_demo_stream->get(jump);
 291     playback_demo_stream->get(action);
 292     demo_controller->press(Controller::LEFT, left);
 293     demo_controller->press(Controller::RIGHT, right);
 294     demo_controller->press(Controller::UP, up);
 295     demo_controller->press(Controller::DOWN, down);
 296     demo_controller->press(Controller::JUMP, jump);
 297     demo_controller->press(Controller::ACTION, action);
 298   }
 299
 300   // save input for demo?
 301   if(capture_demo_stream != 0) {
 302     capture_demo_stream ->put(main_controller->hold(Controller::LEFT));
 303     capture_demo_stream ->put(main_controller->hold(Controller::RIGHT));
 304     capture_demo_stream ->put(main_controller->hold(Controller::UP));
 305     capture_demo_stream ->put(main_controller->hold(Controller::DOWN));
 306     capture_demo_stream ->put(main_controller->hold(Controller::JUMP));
 307     capture_demo_stream ->put(main_controller->hold(Controller::ACTION));
 308   }
 309 }
 310
 311 void
 312 GameSession::try_cheats()
 313 {
 314   if(currentsector == 0)
 315     return;
 316   Player& tux = *currentsector->player;
 317
 318   // Cheating words (the goal of this is really for debugging,
 319   // but could be used for some cheating, nothing wrong with that)
 320   if(main_controller->check_cheatcode("grow")) {
 321     tux.set_bonus(GROWUP_BONUS, false);
 322   }
 323   if(main_controller->check_cheatcode("fire")) {
 324     tux.set_bonus(FIRE_BONUS, false);
 325   }
 326   if(main_controller->check_cheatcode("ice")) {
 327     tux.set_bonus(ICE_BONUS, false);
 328   }
 329   if(main_controller->check_cheatcode("lifeup")) {
 330     player_status->lives++;
 331   }
 332   if(main_controller->check_cheatcode("lifedown")) {
 333     player_status->lives--;
 334   }
 335   if(main_controller->check_cheatcode("grease")) {
 336     tux.physic.set_velocity_x(tux.physic.get_velocity_x()*3);
 337   }
 338   if(main_controller->check_cheatcode("invincible")) {
 339     // be invincle for the rest of the level
 340     tux.invincible_timer.start(10000);
 341   }
 342   if(main_controller->check_cheatcode("mortal")) {
 343     // give up invincibility
 344     tux.invincible_timer.stop();
 345   }
 346   if(main_controller->check_cheatcode("shrink")) {
 347     // remove powerups
 348     tux.kill(tux.SHRINK);
 349   }
 350   if(main_controller->check_cheatcode("kill")) {
 351     // kill Tux, but without losing a life
 352     player_status->lives++;
 353     tux.kill(tux.KILL);
 354   }
 355   if(main_controller->check_cheatcode("whereami")) {
 356     std::cout << "You are at x " << tux.get_pos().x << ", y " << tux.get_pos().y << "." << std::endl;
 357   }
 358 #if 0
 359   if(main_controller->check_cheatcode("grid")) {
 360     // toggle debug grid
 361     debug_grid = !debug_grid;
 362   }
 363 #endif
 364   if(main_controller->check_cheatcode("gotoend")) {
 365     // goes to the end of the level
 366     tux.move(Vector(
 367           (currentsector->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 368     currentsector->camera->reset(
 369         Vector(tux.get_pos().x, tux.get_pos().y));
 370   }
 371   if(main_controller->check_cheatcode("finish")) {
 372     // finish current sector
 373     exit_status = ES_LEVEL_FINISHED;
 374     // don't add points to stats though...
 375   }
 376 }
 377
 378 void
 379 GameSession::check_end_conditions()
 380 {
 381   Player* tux = currentsector->player;
 382
 383   /* End of level? */
 384   if(end_sequence && endsequence_timer.check()) {
 385     exit_status = ES_LEVEL_FINISHED;
 386     return;
 387   } else if (!end_sequence && tux->is_dead()) {
 388     if (player_status->lives < 0) { // No more lives!?
 389       exit_status = ES_GAME_OVER;
 390     } else { // Still has lives, so reset Tux to the levelstart
 391       restart_level();
 392     }
 393
 394     return;
 395   }
 396 }
 397
 398 void
 399 GameSession::update(float elapsed_time)
 400 {
 401   // handle controller
 402   if(main_controller->pressed(Controller::PAUSE_MENU))
 403     on_escape_press();
 404
 405   // advance timers
 406   if(!currentsector->player->growing_timer.started()) {
 407     // Update Tux and the World
 408     currentsector->update(elapsed_time);
 409   }
 410
 411   // respawning in new sector?
 412   if(newsector != "" && newspawnpoint != "") {
 413     Sector* sector = level->get_sector(newsector);
 414     if(sector == 0) {
 415       std::cerr << "Sector '" << newsector << "' not found.\n";
 416     }
 417     sector->activate(newspawnpoint);
 418     sector->play_music(LEVEL_MUSIC);
 419     currentsector = sector;
 420     newsector = "";
 421     newspawnpoint = "";
 422   }
 423
 424   // update sounds
 425   sound_manager->set_listener_position(currentsector->player->get_pos());
 426 }
 427
 428 void
 429 GameSession::draw()
 430 {
 431   currentsector->draw(*context);
 432   drawstatus(*context);
 433
 434   if(game_pause)
 435     draw_pause();
 436
 437   if(Menu::current()) {
 438     Menu::current()->draw(*context);
 439   }
 440
 441   context->do_drawing();
 442 }
 443
 444 void
 445 GameSession::draw_pause()
 446 {
 447   int x = SCREEN_HEIGHT / 20;
 448   for(int i = 0; i < x; ++i) {
 449     context->draw_filled_rect(
 450         Vector(i % 2 ? (pause_menu_frame * i)%SCREEN_WIDTH :
 451           -((pause_menu_frame * i)%SCREEN_WIDTH)
 452           ,(i*20+pause_menu_frame)%SCREEN_HEIGHT),
 453         Vector(SCREEN_WIDTH,10),
 454         Color(0.1, 0.1, 0.1, static_cast<float>(rand() % 20 + 1) / 255.0),
 455         LAYER_FOREGROUND1+1);
 456   }
 457
 458   context->draw_filled_rect(
 459       Vector(0,0), Vector(SCREEN_WIDTH, SCREEN_HEIGHT),
 460       Color(
 461         static_cast<float>(rand() % 50) / 255.0,
 462         static_cast<float>(rand() % 50) / 255.0,
 463         static_cast<float>(rand() % 50) / 255.0,
 464         0.5), LAYER_FOREGROUND1);
 465 #if 0
 466   context->draw_text(blue_text, _("PAUSE - Press 'P' To Play"),
 467       Vector(SCREEN_WIDTH/2, 230), CENTER_ALLIGN, LAYER_FOREGROUND1+2);
 468
 469   const char* str1 = _("Playing: ");
 470   const char* str2 = level->get_name().c_str();
 471
 472   context->draw_text(blue_text, str1,
 473       Vector((SCREEN_WIDTH - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2, 340),
 474       LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 475   context->draw_text(white_text, str2,
 476       Vector(((SCREEN_WIDTH - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2)+blue_text->get_text_width(str1), 340),
 477       LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 478 #endif
 479 }
 480
 481 void
 482 GameSession::process_menu()
 483 {
 484   Menu* menu = Menu::current();
 485   if(menu) {
 486     menu->update();
 487
 488     if(menu == game_menu) {
 489       switch (game_menu->check()) {
 490         case MNID_CONTINUE:
 491           Menu::set_current(0);
 492           break;
 493         case MNID_ABORTLEVEL:
 494           Menu::set_current(0);
 495           exit_status = ES_LEVEL_ABORT;
 496           break;
 497       }
 498     } else if(menu == options_menu) {
 499       process_options_menu();
 500     } else if(menu == load_game_menu ) {
 501       process_load_game_menu();
 502     }
 503   }
 504 }
 505
 506
 507 GameSession::ExitStatus
 508 GameSession::run()
 509 {
 510   Menu::set_current(0);
 511   current_ = this;
 512
 513   int fps_cnt = 0;
 514
 515   // Eat unneeded events
 516   SDL_Event event;
 517   while(SDL_PollEvent(&event))
 518   {}
 519
 520   draw();
 521
 522   Uint32 fps_ticks = SDL_GetTicks();
 523   Uint32 fps_nextframe_ticks = SDL_GetTicks();
 524   Uint32 ticks;
 525   bool skipdraw = false;
 526
 527   while (exit_status == ES_NONE) {
 528     // we run in a logical framerate so elapsed time is a constant
 529     static const float elapsed_time = 1.0 / LOGICAL_FPS;
 530     // old code... float elapsed_time = float(ticks - lastticks) / 1000.;
 531     if(!game_pause)
 532       game_time += elapsed_time;
 533
 534     // regulate fps
 535     ticks = SDL_GetTicks();
 536     if(ticks > fps_nextframe_ticks) {
 537       if(skipdraw == true) {
 538         // already skipped last frame? we have to slow down the game then...
 539         skipdraw = false;
 540         fps_nextframe_ticks -= (Uint32) (1000.0 / LOGICAL_FPS);
 541       } else {
 542         // don't draw all frames when we're getting too slow
 543         skipdraw = true;
 544       }
 545     } else {
 546       skipdraw = false;
 547       while(fps_nextframe_ticks > ticks) {
 548         /* just wait */
 549         // If we really have to wait long, then do an imprecise SDL_Delay()
 550         Uint32 diff = fps_nextframe_ticks - ticks;
 551         if(diff > 15) {
 552           SDL_Delay(diff - 10);
 553         }
 554         ticks = SDL_GetTicks();
 555       }
 556     }
 557     fps_nextframe_ticks = ticks + (Uint32) (1000.0 / LOGICAL_FPS);
 558
 559 #if 0
 560     float diff = SDL_GetTicks() - fps_nextframe_ticks;
 561     if (diff > 5.0) {
 562          // sets the ticks that must have elapsed
 563         fps_nextframe_ticks = SDL_GetTicks() + (1000.0 / LOGICAL_FPS);
 564     } else {
 565         // sets the ticks that must have elapsed
 566         // in order for the next frame to start.
 567         fps_nextframe_ticks += 1000.0 / LOGICAL_FPS;
 568     }
 569 #endif
 570
 571     process_events();
 572     process_menu();
 573
 574     // Update the world state and all objects in the world
 575     // Do that with a constante time-delta so that the game will run
 576     // determistic and not different on different machines
 577     if(!game_pause && !Menu::current())
 578     {
 579       // Update the world
 580       check_end_conditions();
 581       if (end_sequence == ENDSEQUENCE_RUNNING)
 582         update(elapsed_time/2);
 583       else if(end_sequence == NO_ENDSEQUENCE)
 584         update(elapsed_time);
 585     }
 586     else
 587     {
 588       ++pause_menu_frame;
 589     }
 590
 591     if(!skipdraw)
 592       draw();
 593
 594     // update sounds
 595     sound_manager->update();
 596
 597     /* Time stops in pause mode */
 598     if(game_pause || Menu::current())
 599     {
 600       continue;
 601     }
 602
 603     //frame_rate.update();
 604
 605     /* Handle music: */
 606     if (currentsector->player->invincible_timer.started() && !end_sequence)
 607     {
 608       currentsector->play_music(HERRING_MUSIC);
 609     }
 610     /* or just normal music? */
 611     else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 612     {
 613       currentsector->play_music(LEVEL_MUSIC);
 614     }
 615
 616     /* Calculate frames per second */
 617     if(config->show_fps)
 618     {
 619       ++fps_cnt;
 620
 621       if(SDL_GetTicks() - fps_ticks >= 500)
 622       {
 623         fps_fps = (float) fps_cnt / .5;
 624         fps_cnt = 0;
 625         fps_ticks = SDL_GetTicks();
 626       }
 627     }
 628   }
 629
 630   // just in case
 631   currentsector = 0;
 632   main_controller->reset();
 633   return exit_status;
 634 }
 635
 636 void
 637 GameSession::finish(bool win)
 638 {
 639   if(win)
 640     exit_status = ES_LEVEL_FINISHED;
 641   else
 642     exit_status = ES_LEVEL_ABORT;
 643 }
 644
 645 void
 646 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 647 {
 648   newsector = sector;
 649   newspawnpoint = spawnpoint;
 650 }
 651
 652 void
 653 GameSession::set_reset_point(const std::string& sector, const Vector& pos)
 654 {
 655   reset_sector = sector;
 656   reset_pos = pos;
 657 }
 658
 659 std::string
 660 GameSession::get_working_directory()
 661 {
 662   return FileSystem::dirname(levelfile);
 663 }
 664
 665 void
 666 GameSession::display_info_box(const std::string& text)
 667 {
 668   InfoBox* box = new InfoBox(text);
 669
 670   bool running = true;
 671   while(running)  {
 672
 673     main_controller->update();
 674     SDL_Event event;
 675     while (SDL_PollEvent(&event)) {
 676       main_controller->process_event(event);
 677       if(event.type == SDL_QUIT)
 678         throw graceful_shutdown();
 679     }
 680
 681     if(main_controller->pressed(Controller::JUMP)
 682         || main_controller->pressed(Controller::ACTION)
 683         || main_controller->pressed(Controller::PAUSE_MENU)
 684         || main_controller->pressed(Controller::MENU_SELECT))
 685       running = false;
 686     else if(main_controller->pressed(Controller::DOWN))
 687       box->scrolldown();
 688     else if(main_controller->pressed(Controller::UP))
 689       box->scrollup();
 690     box->draw(*context);
 691     draw();
 692     sound_manager->update();
 693   }
 694
 695   delete box;
 696 }
 697
 698 void
 699 GameSession::start_sequence(const std::string& sequencename)
 700 {
 701   if(sequencename == "endsequence" || sequencename == "fireworks") {
 702     if(end_sequence)
 703       return;
 704
 705     end_sequence = ENDSEQUENCE_RUNNING;
 706     endsequence_timer.start(7.0); // 7 seconds until we finish the map
 707     last_x_pos = -1;
 708     sound_manager->play_music("music/leveldone.ogg", false);
 709     currentsector->player->invincible_timer.start(7.0);
 710
 711     if(sequencename == "fireworks") {
 712       currentsector->add_object(new Fireworks());
 713     }
 714   } else if(sequencename == "stoptux") {
 715     end_sequence =  ENDSEQUENCE_WAITING;
 716   } else {
 717     std::cout << "Unknown sequence '" << sequencename << "'.\n";
 718   }
 719 }
 720
 721 /* (Status): */
 722 void
 723 GameSession::drawstatus(DrawingContext& context)
 724 {
 725   player_status->draw(context);
 726
 727   if(config->show_fps) {
 728     char str[60];
 729     snprintf(str, sizeof(str), "%2.1f", fps_fps);
 730     context.draw_text(white_text, "FPS",
 731                       Vector(SCREEN_WIDTH -
 732                              white_text->get_text_width("FPS     ") - BORDER_X, BORDER_Y + 40),
 733                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 734     context.draw_text(gold_text, str,
 735                       Vector(SCREEN_WIDTH-4*16 - BORDER_X, BORDER_Y + 40),
 736                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 737   }
 738 }
 739
 740 void
 741 GameSession::drawresultscreen()
 742 {
 743   char str[80];
 744
 745   DrawingContext context;
 746   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 747       i != currentsector->gameobjects.end(); ++i) {
 748     Background* background = dynamic_cast<Background*> (*i);
 749     if(background) {
 750       background->draw(context);
 751     }
 752   }
 753
 754   context.draw_text(blue_text, _("Result:"), Vector(SCREEN_WIDTH/2, 200),
 755       CENTER_ALLIGN, LAYER_FOREGROUND1);
 756
 757   sprintf(str, _("SCORE: %d"), global_stats.get_points(SCORE_STAT));
 758   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 759
 760   sprintf(str, _("COINS: %d"), player_status->coins);
 761   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 256), CENTER_ALLIGN, LAYER_FOREGROUND1);
 762
 763   context.do_drawing();
 764
 765   wait_for_event(2.0, 5.0);
 766 }
 767
 768 std::string slotinfo(int slot)
 769 {
 770   std::string tmp;
 771   std::string slotfile;
 772   std::string title;
 773   std::stringstream stream;
 774   stream << slot;
 775   slotfile = "save/slot" + stream.str() + ".stsg";
 776
 777   try {
 778     lisp::Parser parser;
 779     std::auto_ptr<lisp::Lisp> root (parser.parse(slotfile));
 780
 781     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
 782     if(!savegame)
 783       throw std::runtime_error("file is not a supertux-savegame.");
 784
 785     savegame->get("title", title);
 786   } catch(std::exception& e) {
 787     return std::string(_("Slot")) + " " + stream.str() + " - " +
 788       std::string(_("Free"));
 789   }
 790
 791   return std::string("Slot ") + stream.str() + " - " + title;
 792 }
 793
 794 bool process_load_game_menu()
 795 {
 796   int slot = load_game_menu->check();
 797
 798   if(slot == -1)
 799     return false;
 800
 801   if(load_game_menu->get_item_by_id(slot).kind != MN_ACTION)
 802     return false;
 803
 804   std::stringstream stream;
 805   stream << slot;
 806   std::string slotfile = "save/slot" + stream.str() + ".stsg";
 807
 808   sound_manager->stop_music();
 809   fadeout(256);
 810   DrawingContext context;
 811   context.draw_text(white_text, "Loading...",
 812                     Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2),
 813                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 814   context.do_drawing();
 815
 816   WorldMapNS::WorldMap worldmap;
 817
 818   worldmap.set_map_filename("/levels/world1/worldmap.stwm");
 819   // Load the game or at least set the savegame_file variable
 820   worldmap.loadgame(slotfile);
 821
 822   worldmap.display();
 823
 824   Menu::set_current(main_menu);
 825
 826   return true;
 827 }