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 #ifndef WIN32
  39 #include <sys/types.h>
  40 #include <ctype.h>
  41 #endif
  42
  43 #include "game_session.h"
  44 #include "video/screen.h"
  45 #include "gui/menu.h"
  46 #include "sector.h"
  47 #include "level.h"
  48 #include "tile.h"
  49 #include "player_status.h"
  50 #include "object/particlesystem.h"
  51 #include "object/background.h"
  52 #include "object/tilemap.h"
  53 #include "object/camera.h"
  54 #include "object/player.h"
  55 #include "lisp/lisp.h"
  56 #include "lisp/parser.h"
  57 #include "resources.h"
  58 #include "worldmap.h"
  59 #include "misc.h"
  60 #include "statistics.h"
  61 #include "timer.h"
  62 #include "object/fireworks.h"
  63 #include "textscroller.h"
  64 #include "control/codecontroller.h"
  65 #include "control/joystickkeyboardcontroller.h"
  66 #include "main.h"
  67 #include "gameconfig.h"
  68 #include "gettext.h"
  69
  70 // the engine will be run with a lofical framerate of 64fps.
  71 // We choose 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
  86   game_pause = 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   currentsector->play_music(LEVEL_MUSIC);
 133
 134   if(capture_file != "")
 135     record_demo(capture_file);
 136 }
 137
 138 GameSession::~GameSession()
 139 {
 140   delete capture_demo_stream;
 141   delete playback_demo_stream;
 142   delete demo_controller;
 143
 144   delete end_sequence_controller;
 145   delete level;
 146   delete context;
 147 }
 148
 149 void
 150 GameSession::record_demo(const std::string& filename)
 151 {
 152   delete capture_demo_stream;
 153
 154   capture_demo_stream = new std::ofstream(filename.c_str());
 155   if(!capture_demo_stream->good()) {
 156     std::stringstream msg;
 157     msg << "Couldn't open demo file '" << filename << "' for writing.";
 158     throw std::runtime_error(msg.str());
 159   }
 160   capture_file = filename;
 161 }
 162
 163 void
 164 GameSession::play_demo(const std::string& filename)
 165 {
 166   delete playback_demo_stream;
 167   delete demo_controller;
 168
 169   playback_demo_stream = new std::ifstream(filename.c_str());
 170   if(!playback_demo_stream->good()) {
 171     std::stringstream msg;
 172     msg << "Couldn't open demo file '" << filename << "' for reading.";
 173     throw std::runtime_error(msg.str());
 174   }
 175
 176   Player& tux = *currentsector->player;
 177   demo_controller = new CodeController();
 178   tux.set_controller(demo_controller);
 179 }
 180
 181 void
 182 GameSession::levelintro()
 183 {
 184   sound_manager->halt_music();
 185
 186   char str[60];
 187
 188   DrawingContext context;
 189   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 190       i != currentsector->gameobjects.end(); ++i) {
 191     Background* background = dynamic_cast<Background*> (*i);
 192     if(background) {
 193       background->draw(context);
 194     }
 195   }
 196
 197 //  context.draw_text(gold_text, level->get_name(), Vector(SCREEN_WIDTH/2, 160),
 198 //      CENTER_ALLIGN, LAYER_FOREGROUND1);
 199   context.draw_center_text(gold_text, level->get_name(), Vector(0, 160),
 200       LAYER_FOREGROUND1);
 201
 202   sprintf(str, "TUX x %d", player_status.lives);
 203   context.draw_text(white_text, str, Vector(SCREEN_WIDTH/2, 210),
 204       CENTER_ALLIGN, LAYER_FOREGROUND1);
 205
 206   if((level->get_author().size()) && (level->get_author() != "SuperTux Team"))
 207     //TODO make author check case/blank-insensitive
 208     context.draw_text(white_small_text,
 209       std::string(_("contributed by ")) + level->get_author(),
 210       Vector(SCREEN_WIDTH/2, 350), CENTER_ALLIGN, LAYER_FOREGROUND1);
 211
 212
 213   if(best_level_statistics != NULL)
 214     best_level_statistics->draw_message_info(context, _("Best Level Statistics"));
 215
 216   context.do_drawing();
 217
 218   wait_for_event(1.0, 3.0);
 219 }
 220
 221 void
 222 GameSession::on_escape_press()
 223 {
 224   if(currentsector->player->is_dying() || end_sequence != NO_ENDSEQUENCE)
 225     return;   // don't let the player open the menu, when he is dying
 226
 227   if(mode == ST_GL_TEST) {
 228     exit_status = ES_LEVEL_ABORT;
 229   } else if (!Menu::current()) {
 230     Menu::set_current(game_menu);
 231     game_menu->set_active_item(MNID_CONTINUE);
 232     game_pause = true;
 233   } else {
 234     game_pause = false;
 235   }
 236 }
 237
 238 void
 239 GameSession::process_events()
 240 {
 241   Player& tux = *currentsector->player;
 242   main_controller->update();
 243
 244   // end of pause mode?
 245   if(!Menu::current() && game_pause) {
 246     game_pause = false;
 247   }
 248
 249   if (end_sequence != NO_ENDSEQUENCE) {
 250     if(end_sequence_controller == 0) {
 251       end_sequence_controller = new CodeController();
 252       tux.set_controller(end_sequence_controller);
 253     }
 254
 255     end_sequence_controller->press(Controller::RIGHT);
 256
 257     if (int(last_x_pos) == int(tux.get_pos().x))
 258       end_sequence_controller->press(Controller::JUMP);
 259     last_x_pos = tux.get_pos().x;
 260   }
 261
 262   main_controller->update();
 263   SDL_Event event;
 264   while (SDL_PollEvent(&event)) {
 265     /* Check for menu-events, if the menu is shown */
 266     if (Menu::current())
 267       Menu::current()->event(event);
 268     main_controller->process_event(event);
 269     if(event.type == SDL_QUIT)
 270       throw std::runtime_error("Received window close");
 271   }
 272
 273   // playback a demo?
 274   if(playback_demo_stream != 0) {
 275     demo_controller->update();
 276     char left = false;
 277     char right = false;
 278     char up = false;
 279     char down = false;
 280     char jump = false;
 281     char action = false;
 282     playback_demo_stream->get(left);
 283     playback_demo_stream->get(right);
 284     playback_demo_stream->get(up);
 285     playback_demo_stream->get(down);
 286     playback_demo_stream->get(jump);
 287     playback_demo_stream->get(action);
 288     demo_controller->press(Controller::LEFT, left);
 289     demo_controller->press(Controller::RIGHT, right);
 290     demo_controller->press(Controller::UP, up);
 291     demo_controller->press(Controller::DOWN, down);
 292     demo_controller->press(Controller::JUMP, jump);
 293     demo_controller->press(Controller::ACTION, action);
 294   }
 295
 296   // save input for demo?
 297   if(capture_demo_stream != 0) {
 298     capture_demo_stream ->put(main_controller->hold(Controller::LEFT));
 299     capture_demo_stream ->put(main_controller->hold(Controller::RIGHT));
 300     capture_demo_stream ->put(main_controller->hold(Controller::UP));
 301     capture_demo_stream ->put(main_controller->hold(Controller::DOWN));
 302     capture_demo_stream ->put(main_controller->hold(Controller::JUMP));
 303     capture_demo_stream ->put(main_controller->hold(Controller::ACTION));
 304   }
 305 }
 306
 307 void
 308 GameSession::try_cheats()
 309 {
 310   if(currentsector == 0)
 311     return;
 312   Player& tux = *currentsector->player;
 313
 314   // Cheating words (the goal of this is really for debugging,
 315   // but could be used for some cheating, nothing wrong with that)
 316   if(main_controller->check_cheatcode("grow")) {
 317     tux.set_bonus(GROWUP_BONUS, false);
 318   }
 319   if(main_controller->check_cheatcode("fire")) {
 320     tux.set_bonus(FIRE_BONUS, false);
 321   }
 322   if(main_controller->check_cheatcode("ice")) {
 323     tux.set_bonus(ICE_BONUS, false);
 324   }
 325   if(main_controller->check_cheatcode("lifeup")) {
 326     player_status.lives++;
 327   }
 328   if(main_controller->check_cheatcode("lifedown")) {
 329     player_status.lives--;
 330   }
 331   if(main_controller->check_cheatcode("grease")) {
 332     tux.physic.set_velocity_x(tux.physic.get_velocity_x()*3);
 333   }
 334   if(main_controller->check_cheatcode("invincible")) {
 335     // be invincle for the rest of the level
 336     tux.invincible_timer.start(10000);
 337   }
 338   if(main_controller->check_cheatcode("shrink")) {
 339     // remove powerups
 340     tux.kill(tux.SHRINK);
 341   }
 342   if(main_controller->check_cheatcode("kill")) {
 343     // kill Tux, but without losing a life
 344     player_status.lives++;
 345     tux.kill(tux.KILL);
 346   }
 347 #if 0
 348   if(main_controller->check_cheatcode("grid")) {
 349     // toggle debug grid
 350     debug_grid = !debug_grid;
 351   }
 352 #endif
 353   if(main_controller->check_cheatcode("hover")) {
 354     // toggle hover ability on/off
 355     tux.enable_hover = !tux.enable_hover;
 356   }
 357   if(main_controller->check_cheatcode("gotoend")) {
 358     // goes to the end of the level
 359     tux.move(Vector(
 360           (currentsector->solids->get_width()*32) - (SCREEN_WIDTH*2), 0));
 361     currentsector->camera->reset(
 362         Vector(tux.get_pos().x, tux.get_pos().y));
 363   }
 364   if(main_controller->check_cheatcode("finish")) {
 365     // finish current sector
 366     exit_status = ES_LEVEL_FINISHED;
 367     // don't add points to stats though...
 368   }
 369   // temporary to help player's choosing a flapping
 370   if(main_controller->check_cheatcode("marek")) {
 371     tux.flapping_mode = Player::MAREK_FLAP;
 372   }
 373   if(main_controller->check_cheatcode("ricardo")) {
 374     tux.flapping_mode = Player::RICARDO_FLAP;
 375   }
 376   if(main_controller->check_cheatcode("ryan")) {
 377     tux.flapping_mode = Player::RYAN_FLAP;
 378   }
 379 }
 380
 381 void
 382 GameSession::check_end_conditions()
 383 {
 384   Player* tux = currentsector->player;
 385
 386   /* End of level? */
 387   if(end_sequence && endsequence_timer.check()) {
 388     exit_status = ES_LEVEL_FINISHED;
 389     return;
 390   } else if (!end_sequence && tux->is_dead()) {
 391     if (player_status.lives < 0) { // No more lives!?
 392       exit_status = ES_GAME_OVER;
 393     } else { // Still has lives, so reset Tux to the levelstart
 394       restart_level();
 395     }
 396
 397     return;
 398   }
 399 }
 400
 401 void
 402 GameSession::update(float elapsed_time)
 403 {
 404   // handle controller
 405   if(main_controller->pressed(Controller::PAUSE_MENU))
 406     on_escape_press();
 407
 408   // advance timers
 409   if(!currentsector->player->growing_timer.started()) {
 410     // Update Tux and the World
 411     currentsector->update(elapsed_time);
 412   }
 413
 414   // respawning in new sector?
 415   if(newsector != "" && newspawnpoint != "") {
 416     Sector* sector = level->get_sector(newsector);
 417     if(sector == 0) {
 418       std::cerr << "Sector '" << newsector << "' not found.\n";
 419     }
 420     sector->activate(newspawnpoint);
 421     sector->play_music(LEVEL_MUSIC);
 422     currentsector = sector;
 423     newsector = "";
 424     newspawnpoint = "";
 425   }
 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(20,20,20, rand() % 20 + 1), LAYER_FOREGROUND1+1);
 455   }
 456
 457   context->draw_filled_rect(
 458       Vector(0,0), Vector(SCREEN_WIDTH, SCREEN_HEIGHT),
 459       Color(rand() % 50, rand() % 50, rand() % 50, 128), LAYER_FOREGROUND1);
 460 #if 0
 461   context->draw_text(blue_text, _("PAUSE - Press 'P' To Play"),
 462       Vector(SCREEN_WIDTH/2, 230), CENTER_ALLIGN, LAYER_FOREGROUND1+2);
 463
 464   const char* str1 = _("Playing: ");
 465   const char* str2 = level->get_name().c_str();
 466
 467   context->draw_text(blue_text, str1,
 468       Vector((SCREEN_WIDTH - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2, 340),
 469       LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 470   context->draw_text(white_text, str2,
 471       Vector(((SCREEN_WIDTH - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2)+blue_text->get_text_width(str1), 340),
 472       LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 473 #endif
 474 }
 475
 476 void
 477 GameSession::process_menu()
 478 {
 479   Menu* menu = Menu::current();
 480   if(menu) {
 481     menu->update();
 482
 483     if(menu == game_menu) {
 484       switch (game_menu->check()) {
 485         case MNID_CONTINUE:
 486           Menu::set_current(0);
 487           break;
 488         case MNID_ABORTLEVEL:
 489           Menu::set_current(0);
 490           exit_status = ES_LEVEL_ABORT;
 491           break;
 492       }
 493     } else if(menu == options_menu) {
 494       process_options_menu();
 495     } else if(menu == load_game_menu ) {
 496       process_load_game_menu();
 497     }
 498   }
 499 }
 500
 501
 502 GameSession::ExitStatus
 503 GameSession::run()
 504 {
 505   Menu::set_current(0);
 506   current_ = this;
 507
 508   int fps_cnt = 0;
 509
 510   // Eat unneeded events
 511   SDL_Event event;
 512   while(SDL_PollEvent(&event))
 513   {}
 514
 515   draw();
 516
 517   Uint32 fps_ticks = SDL_GetTicks();
 518   Uint32 fps_nextframe_ticks = SDL_GetTicks();
 519   Uint32 ticks;
 520   bool skipdraw = false;
 521
 522   while (exit_status == ES_NONE) {
 523     // we run in a logical framerate so elapsed time is a constant
 524     static const float elapsed_time = 1.0 / LOGICAL_FPS;
 525     // old code... float elapsed_time = float(ticks - lastticks) / 1000.;
 526     if(!game_pause)
 527       global_time += elapsed_time;
 528
 529     // regulate fps
 530     ticks = SDL_GetTicks();
 531     if(ticks > fps_nextframe_ticks) {
 532       if(skipdraw == true) {
 533         // already skipped last frame? we have to slow down the game then...
 534         skipdraw = false;
 535         fps_nextframe_ticks -= (Uint32) (1000.0 / LOGICAL_FPS);
 536       } else {
 537         // don't draw all frames when we're getting too slow
 538         skipdraw = true;
 539       }
 540     } else {
 541       skipdraw = false;
 542       while(fps_nextframe_ticks > ticks) {
 543         /* just wait */
 544         // If we really have to wait long, then do an imprecise SDL_Delay()
 545         Uint32 diff = fps_nextframe_ticks - ticks;
 546         if(diff > 15) {
 547           SDL_Delay(diff - 10);
 548         }
 549         ticks = SDL_GetTicks();
 550       }
 551     }
 552     fps_nextframe_ticks = ticks + (Uint32) (1000.0 / LOGICAL_FPS);
 553
 554 #if 0
 555     float diff = SDL_GetTicks() - fps_nextframe_ticks;
 556     if (diff > 5.0) {
 557          // sets the ticks that must have elapsed
 558         fps_nextframe_ticks = SDL_GetTicks() + (1000.0 / LOGICAL_FPS);
 559     } else {
 560         // sets the ticks that must have elapsed
 561         // in order for the next frame to start.
 562         fps_nextframe_ticks += 1000.0 / LOGICAL_FPS;
 563     }
 564 #endif
 565
 566     process_events();
 567     process_menu();
 568
 569     // Update the world state and all objects in the world
 570     // Do that with a constante time-delta so that the game will run
 571     // determistic and not different on different machines
 572     if(!game_pause && !Menu::current())
 573     {
 574       // Update the world
 575       check_end_conditions();
 576       if (end_sequence == ENDSEQUENCE_RUNNING)
 577         update(elapsed_time/2);
 578       else if(end_sequence == NO_ENDSEQUENCE)
 579         update(elapsed_time);
 580     }
 581     else
 582     {
 583       ++pause_menu_frame;
 584     }
 585
 586     if(!skipdraw)
 587       draw();
 588
 589     /* Time stops in pause mode */
 590     if(game_pause || Menu::current())
 591     {
 592       continue;
 593     }
 594
 595     //frame_rate.update();
 596
 597     /* Handle music: */
 598     if (currentsector->player->invincible_timer.started() && !end_sequence)
 599     {
 600       currentsector->play_music(HERRING_MUSIC);
 601     }
 602     /* or just normal music? */
 603     else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 604     {
 605       currentsector->play_music(LEVEL_MUSIC);
 606     }
 607
 608     /* Calculate frames per second */
 609     if(config->show_fps)
 610     {
 611       ++fps_cnt;
 612
 613       if(SDL_GetTicks() - fps_ticks >= 500)
 614       {
 615         fps_fps = (float) fps_cnt / .5;
 616         fps_cnt = 0;
 617         fps_ticks = SDL_GetTicks();
 618       }
 619     }
 620   }
 621
 622   // just in case
 623   currentsector = 0;
 624   main_controller->reset();
 625   return exit_status;
 626 }
 627
 628 void
 629 GameSession::finish(bool win)
 630 {
 631   if(win)
 632     exit_status = ES_LEVEL_FINISHED;
 633   else
 634     exit_status = ES_LEVEL_ABORT;
 635 }
 636
 637 void
 638 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 639 {
 640   newsector = sector;
 641   newspawnpoint = spawnpoint;
 642 }
 643
 644 void
 645 GameSession::set_reset_point(const std::string& sector, const Vector& pos)
 646 {
 647   reset_sector = sector;
 648   reset_pos = pos;
 649 }
 650
 651 void
 652 GameSession::display_info_box(const std::string& text)
 653 {
 654   InfoBox* box = new InfoBox(text);
 655
 656   bool running = true;
 657   while(running)  {
 658
 659     main_controller->update();
 660     SDL_Event event;
 661     while (SDL_PollEvent(&event)) {
 662       main_controller->process_event(event);
 663       if(event.type == SDL_QUIT)
 664         throw std::runtime_error("Received window close event");
 665     }
 666
 667     if(main_controller->pressed(Controller::JUMP)
 668         || main_controller->pressed(Controller::ACTION)
 669         || main_controller->pressed(Controller::PAUSE_MENU)
 670         || main_controller->pressed(Controller::MENU_SELECT))
 671       running = false;
 672     box->draw(*context);
 673     draw();
 674   }
 675
 676   delete box;
 677 }
 678
 679 void
 680 GameSession::start_sequence(const std::string& sequencename)
 681 {
 682   if(sequencename == "endsequence" || sequencename == "fireworks") {
 683     if(end_sequence)
 684       return;
 685
 686     end_sequence = ENDSEQUENCE_RUNNING;
 687     endsequence_timer.start(7.0); // 7 seconds until we finish the map
 688     last_x_pos = -1;
 689     sound_manager->play_music(level_end_song, 0);
 690     currentsector->player->invincible_timer.start(7.0);
 691
 692     if(sequencename == "fireworks") {
 693       currentsector->add_object(new Fireworks());
 694     }
 695   } else if(sequencename == "stoptux") {
 696     end_sequence =  ENDSEQUENCE_WAITING;
 697   } else {
 698     std::cout << "Unknown sequence '" << sequencename << "'.\n";
 699   }
 700 }
 701
 702 /* (Status): */
 703 void
 704 GameSession::drawstatus(DrawingContext& context)
 705 {
 706   player_status.draw(context);
 707
 708   if(config->show_fps) {
 709     char str[60];
 710     snprintf(str, sizeof(str), "%2.1f", fps_fps);
 711     context.draw_text(white_text, "FPS",
 712                       Vector(SCREEN_WIDTH -
 713                              white_text->get_text_width("FPS     "), 40),
 714                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 715     context.draw_text(gold_text, str,
 716                       Vector(SCREEN_WIDTH-4*16, 40),
 717                       LEFT_ALLIGN, LAYER_FOREGROUND1);
 718   }
 719 }
 720
 721 void
 722 GameSession::drawresultscreen()
 723 {
 724   char str[80];
 725
 726   DrawingContext context;
 727   for(Sector::GameObjects::iterator i = currentsector->gameobjects.begin();
 728       i != currentsector->gameobjects.end(); ++i) {
 729     Background* background = dynamic_cast<Background*> (*i);
 730     if(background) {
 731       background->draw(context);
 732     }
 733   }
 734
 735   context.draw_text(blue_text, _("Result:"), Vector(SCREEN_WIDTH/2, 200),
 736       CENTER_ALLIGN, LAYER_FOREGROUND1);
 737
 738   sprintf(str, _("SCORE: %d"), global_stats.get_points(SCORE_STAT));
 739   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 740
 741   sprintf(str, _("COINS: %d"), player_status.coins);
 742   context.draw_text(gold_text, str, Vector(SCREEN_WIDTH/2, 256), CENTER_ALLIGN, LAYER_FOREGROUND1);
 743
 744   context.do_drawing();
 745
 746   wait_for_event(2.0, 5.0);
 747 }
 748
 749 std::string slotinfo(int slot)
 750 {
 751   std::string tmp;
 752   std::string slotfile;
 753   std::string title;
 754   std::stringstream stream;
 755   stream << slot;
 756   slotfile = user_dir + "/save/slot" + stream.str() + ".stsg";
 757
 758   try {
 759     lisp::Parser parser;
 760     std::auto_ptr<lisp::Lisp> root (parser.parse(slotfile));
 761
 762     const lisp::Lisp* savegame = root->get_lisp("supertux-savegame");
 763     if(!savegame)
 764       throw std::runtime_error("file is not a supertux-savegame.");
 765
 766     savegame->get("title", title);
 767   } catch(std::exception& e) {
 768     return std::string(_("Slot")) + " " + stream.str() + " - " +
 769       std::string(_("Free"));
 770   }
 771
 772   return std::string("Slot ") + stream.str() + " - " + title;
 773 }
 774
 775 bool process_load_game_menu()
 776 {
 777   int slot = load_game_menu->check();
 778
 779   if(slot == -1)
 780     return false;
 781
 782   if(load_game_menu->get_item_by_id(slot).kind != MN_ACTION)
 783     return false;
 784
 785   std::stringstream stream;
 786   stream << slot;
 787   std::string slotfile = user_dir + "/save/slot" + stream.str() + ".stsg";
 788
 789   fadeout(256);
 790   DrawingContext context;
 791   context.draw_text(white_text, "Loading...",
 792                     Vector(SCREEN_WIDTH/2, SCREEN_HEIGHT/2),
 793                     CENTER_ALLIGN, LAYER_FOREGROUND1);
 794   context.do_drawing();
 795
 796   WorldMapNS::WorldMap worldmap;
 797
 798   worldmap.set_map_filename("/levels/world1/worldmap.stwm");
 799   // Load the game or at least set the savegame_file variable
 800   worldmap.loadgame(slotfile);
 801
 802   worldmap.display();
 803
 804   Menu::set_current(main_menu);
 805
 806   return true;
 807 }