src/gameloop.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
  22 #include <config.h>
  23
  24 #include <iostream>
  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
  35 #include "SDL.h"
  36
  37 #ifndef WIN32
  38 #include <sys/types.h>
  39 #include <ctype.h>
  40 #endif
  41
  42 #include "defines.h"
  43 #include "app/globals.h"
  44 #include "gameloop.h"
  45 #include "video/screen.h"
  46 #include "app/setup.h"
  47 #include "high_scores.h"
  48 #include "gui/menu.h"
  49 #include "sector.h"
  50 #include "player.h"
  51 #include "level.h"
  52 #include "scene.h"
  53 #include "collision.h"
  54 #include "tile.h"
  55 #include "particlesystem.h"
  56 #include "resources.h"
  57 #include "background.h"
  58 #include "tilemap.h"
  59 #include "app/gettext.h"
  60 #include "worldmap.h"
  61 #include "intro.h"
  62 #include "misc.h"
  63 #include "camera.h"
  64 #include "statistics.h"
  65 #include "timer.h"
  66 #include "object/fireworks.h"
  67
  68 GameSession* GameSession::current_ = 0;
  69
  70 bool compare_last(std::string& haystack, std::string needle)
  71 {
  72   int haystack_size = haystack.size();
  73   int needle_size = needle.size();
  74
  75   if(haystack_size < needle_size)
  76     return false;
  77
  78   if(haystack.compare(haystack_size-needle_size, needle_size, needle) == 0)
  79     return true;
  80   return false;
  81 }
  82
  83 GameSession::GameSession(const std::string& levelname_, int mode,
  84     bool flip_level_, Statistics* statistics)
  85   : level(0), currentsector(0), st_gl_mode(mode),
  86     end_sequence(NO_ENDSEQUENCE), levelname(levelname_), flip_level(flip_level_),
  87     best_level_statistics(statistics)
  88 {
  89   current_ = this;
  90
  91   global_frame_counter = 0;
  92   game_pause = false;
  93   fps_fps = 0;
  94
  95   context = new DrawingContext();
  96
  97   if(flip_levels_mode)
  98     flip_level = true;
  99
 100   last_swap_point = Vector(-1, -1);
 101   last_swap_stats.reset();
 102
 103   restart_level();
 104 }
 105
 106 void
 107 GameSession::restart_level()
 108 {
 109   game_pause   = false;
 110   exit_status  = ES_NONE;
 111   end_sequence = NO_ENDSEQUENCE;
 112
 113   last_keys.clear();
 114
 115 #if 0
 116   Vector tux_pos = Vector(-1,-1);
 117   if (currentsector)
 118     {
 119       // Tux has lost a life, so we try to respawn him at the nearest reset point
 120       tux_pos = currentsector->player->base;
 121     }
 122 #endif
 123
 124   delete level;
 125   currentsector = 0;
 126
 127   level = new Level;
 128   level->load(levelname);
 129   if(flip_level)
 130     level->do_vertical_flip();
 131
 132   global_stats.reset();
 133   global_stats.set_total_points(COINS_COLLECTED_STAT, level->get_total_coins());
 134   global_stats.set_total_points(BADGUYS_KILLED_STAT, level->get_total_badguys());
 135   global_stats.set_total_points(TIME_NEEDED_STAT, level->timelimit);
 136
 137   currentsector = level->get_sector("main");
 138   if(!currentsector)
 139     Termination::abort("Level has no main sector.", "");
 140   currentsector->activate("main");
 141
 142 #if 0
 143   // Set Tux to the nearest reset point
 144   if(tux_pos.x != -1)
 145     {
 146     tux_pos = currentsector->get_best_spawn_point(tux_pos);
 147
 148     if(last_swap_point.x > tux_pos.x)
 149       tux_pos = last_swap_point;
 150     else  // new swap point
 151       {
 152       last_swap_point = tux_pos;
 153
 154       last_swap_stats += global_stats;
 155       }
 156
 157     currentsector->player->base.x = tux_pos.x;
 158     currentsector->player->base.y = tux_pos.y;
 159
 160     // has to reset camera on swapping
 161     currentsector->camera->reset(Vector(currentsector->player->base.x,
 162                                         currentsector->player->base.y));
 163     }
 164 #endif
 165
 166   if (st_gl_mode != ST_GL_DEMO_GAME)
 167     {
 168       if(st_gl_mode == ST_GL_PLAY || st_gl_mode == ST_GL_LOAD_LEVEL_FILE)
 169         levelintro();
 170     }
 171
 172   start_timers();
 173   currentsector->play_music(LEVEL_MUSIC);
 174 }
 175
 176 GameSession::~GameSession()
 177 {
 178   delete level;
 179   delete context;
 180 }
 181
 182 void
 183 GameSession::levelintro(void)
 184 {
 185   SoundManager::get()->halt_music();
 186
 187   char str[60];
 188
 189   DrawingContext context;
 190   if(currentsector->background)
 191     currentsector->background->draw(context);
 192
 193 //  context.draw_text(gold_text, level->get_name(), Vector(screen->w/2, 160),
 194 //      CENTER_ALLIGN, LAYER_FOREGROUND1);
 195   context.draw_center_text(gold_text, level->get_name(), Vector(0, 160),
 196       LAYER_FOREGROUND1);
 197
 198   sprintf(str, "TUX x %d", player_status.lives);
 199   context.draw_text(white_text, str, Vector(screen->w/2, 210),
 200       CENTER_ALLIGN, LAYER_FOREGROUND1);
 201
 202   if(level->get_author().size())
 203     context.draw_text(white_small_text,
 204       std::string(_("by ")) + level->get_author(),
 205       Vector(screen->w/2, 350), CENTER_ALLIGN, LAYER_FOREGROUND1);
 206
 207
 208   if(flip_level)
 209     context.draw_text(white_text,
 210       _("Level Vertically Flipped!"),
 211       Vector(screen->w/2, 310), CENTER_ALLIGN, LAYER_FOREGROUND1);
 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   SDL_Event event;
 219   wait_for_event(event,1000,3000,true);
 220 }
 221
 222 /* Reset Timers */
 223 void
 224 GameSession::start_timers()
 225 {
 226   time_left.start(level->timelimit);
 227   Ticks::pause_init();
 228 }
 229
 230 void
 231 GameSession::on_escape_press()
 232 {
 233   if(currentsector->player->dying || end_sequence != NO_ENDSEQUENCE)
 234     return;   // don't let the player open the menu, when he is dying
 235
 236   if(game_pause)
 237     return;
 238
 239   if(st_gl_mode == ST_GL_TEST)
 240     {
 241       exit_status = ES_LEVEL_ABORT;
 242     }
 243   else if (!Menu::current())
 244     {
 245       /* Tell Tux that the keys are all down, otherwise
 246         it could have nasty bugs, like going allways to the right
 247         or whatever that key does */
 248       Player& tux = *(currentsector->player);
 249       tux.key_event((SDLKey)keymap.up, UP);
 250       tux.key_event((SDLKey)keymap.down, UP);
 251       tux.key_event((SDLKey)keymap.left, UP);
 252       tux.key_event((SDLKey)keymap.right, UP);
 253       tux.key_event((SDLKey)keymap.jump, UP);
 254       tux.key_event((SDLKey)keymap.power, UP);
 255
 256       Menu::set_current(game_menu);
 257       Ticks::pause_start();
 258     }
 259 }
 260
 261 void
 262 GameSession::process_events()
 263 {
 264   if (end_sequence != NO_ENDSEQUENCE)
 265     {
 266       Player& tux = *currentsector->player;
 267
 268       tux.input.fire  = UP;
 269       tux.input.left  = UP;
 270       tux.input.right = DOWN;
 271       tux.input.down  = UP;
 272
 273       if (int(last_x_pos) == int(tux.get_pos().x))
 274         tux.input.up    = DOWN;
 275       else
 276         tux.input.up    = UP;
 277
 278       last_x_pos = tux.get_pos().x;
 279
 280       SDL_Event event;
 281       while (SDL_PollEvent(&event))
 282         {
 283           /* Check for menu-events, if the menu is shown */
 284           if (Menu::current())
 285             {
 286               Menu::current()->event(event);
 287               if(!Menu::current())
 288               Ticks::pause_stop();
 289             }
 290
 291           switch(event.type)
 292             {
 293             case SDL_QUIT:        /* Quit event - quit: */
 294               Termination::abort("Received window close", "");
 295               break;
 296
 297             case SDL_KEYDOWN:     /* A keypress! */
 298               {
 299                 SDLKey key = event.key.keysym.sym;
 300
 301                 switch(key)
 302                   {
 303                   case SDLK_ESCAPE:    /* Escape: Open/Close the menu: */
 304                     on_escape_press();
 305                     break;
 306                   default:
 307                     break;
 308                   }
 309               }
 310
 311             case SDL_JOYBUTTONDOWN:
 312               if (event.jbutton.button == joystick_keymap.start_button)
 313                 on_escape_press();
 314               break;
 315             }
 316         }
 317     }
 318   else // normal mode
 319     {
 320       if(!Menu::current() && !game_pause)
 321         Ticks::pause_stop();
 322
 323       SDL_Event event;
 324       while (SDL_PollEvent(&event))
 325         {
 326           /* Check for menu-events, if the menu is shown */
 327           if (Menu::current())
 328             {
 329               Menu::current()->event(event);
 330               if(!Menu::current())
 331                 Ticks::pause_stop();
 332             }
 333           else
 334             {
 335               Player& tux = *currentsector->player;
 336
 337               switch(event.type)
 338                 {
 339                 case SDL_QUIT:        /* Quit event - quit: */
 340                   Termination::abort("Received window close", "");
 341                   break;
 342
 343                 case SDL_KEYDOWN:     /* A keypress! */
 344                   {
 345                     SDLKey key = event.key.keysym.sym;
 346
 347                     if(tux.key_event(key,DOWN))
 348                       break;
 349
 350                     switch(key)
 351                       {
 352                       case SDLK_ESCAPE:    /* Escape: Open/Close the menu: */
 353                         on_escape_press();
 354                         break;
 355                       default:
 356                         break;
 357                       }
 358                   }
 359                   break;
 360                 case SDL_KEYUP:      /* A keyrelease! */
 361                   {
 362                     SDLKey key = event.key.keysym.sym;
 363
 364                     if(tux.key_event(key, UP))
 365                       break;
 366
 367                     switch(key)
 368                       {
 369                       case SDLK_a:
 370                         if(debug_mode)
 371                         {
 372                           char buf[160];
 373                           snprintf(buf, sizeof(buf), "P: %4.1f,%4.1f",
 374                               tux.get_pos().x, tux.get_pos().y);
 375                           context->draw_text(white_text, buf,
 376                               Vector(0, screen->h - white_text->get_height()),
 377                               LEFT_ALLIGN, LAYER_FOREGROUND1);
 378                           context->do_drawing();
 379                           SDL_Delay(1000);
 380                         }
 381                         break;
 382                       case SDLK_p:
 383                         if(!Menu::current())
 384                           {
 385                           // "lifeup" cheat activates pause cause of the 'p'
 386                           // so work around to ignore it
 387                             if(compare_last(last_keys, "lifeu"))
 388                               break;
 389
 390                             if(game_pause)
 391                               {
 392                                 game_pause = false;
 393                                 Ticks::pause_stop();
 394                               }
 395                             else
 396                               {
 397                                 game_pause = true;
 398                                 Ticks::pause_start();
 399                               }
 400                           }
 401                         break;
 402                       default:
 403                         break;
 404                       }
 405                   }
 406
 407                         /* Check if chacrater is ASCII */
 408                         char ch[2];
 409                         if((event.key.keysym.unicode & 0xFF80) == 0)
 410                           {
 411                           ch[0] = event.key.keysym.unicode & 0x7F;
 412                           ch[1] = '\0';
 413                           }
 414                         last_keys.append(ch);  // add to cheat keys
 415
 416                         // Cheating words (the goal of this is really for debugging,
 417                         // but could be used for some cheating, nothing wrong with that)
 418                         if(compare_last(last_keys, "grow"))
 419                           {
 420                           tux.grow(false);
 421                           last_keys.clear();
 422                           }
 423                         if(compare_last(last_keys, "fire"))
 424                           {
 425                           tux.grow(false);
 426                           tux.got_power = tux.FIRE_POWER;
 427                           last_keys.clear();
 428                           }
 429                         if(compare_last(last_keys, "ice"))
 430                           {
 431                           tux.grow(false);
 432                           tux.got_power = tux.ICE_POWER;
 433                           last_keys.clear();
 434                           }
 435                         if(compare_last(last_keys, "lifeup"))
 436                           {
 437                           player_status.lives++;
 438                           last_keys.clear();
 439                           }
 440                         if(compare_last(last_keys, "lifedown"))
 441                           {
 442                           player_status.lives--;
 443                           last_keys.clear();
 444                           }
 445                         if(compare_last(last_keys, "grease"))
 446                           {
 447                           tux.physic.set_velocity_x(tux.physic.get_velocity_x()*3);
 448                           last_keys.clear();
 449                           }
 450                         if(compare_last(last_keys, "invincible"))
 451                           {    // be invincle for the rest of the level
 452                           tux.invincible_timer.start(10000);
 453                           last_keys.clear();
 454                           }
 455                         if(compare_last(last_keys, "shrink"))
 456                           {    // remove powerups
 457                           tux.kill(tux.SHRINK);
 458                           last_keys.clear();
 459                           }
 460                         if(compare_last(last_keys, "kill"))
 461                           {    // kill Tux, but without losing a life
 462                           player_status.lives++;
 463                           tux.kill(tux.KILL);
 464                           last_keys.clear();
 465                           }
 466                         if(compare_last(last_keys, "hover"))
 467                           {    // toggle hover ability on/off
 468                           tux.enable_hover = !tux.enable_hover;
 469                           last_keys.clear();
 470                           }
 471                         if(compare_last(last_keys, "gotoend"))
 472                           {    // goes to the end of the level
 473                           tux.move(Vector(
 474                               (currentsector->solids->get_width()*32)
 475                                 - (screen->w*2),
 476                                 0));
 477                           currentsector->camera->reset(
 478                               Vector(tux.get_pos().x, tux.get_pos().y));
 479                           last_keys.clear();
 480                           }
 481                         // temporary to help player's choosing a flapping
 482                         if(compare_last(last_keys, "marek"))
 483                           {
 484                           tux.flapping_mode = Player::MAREK_FLAP;
 485                           last_keys.clear();
 486                           }
 487                         if(compare_last(last_keys, "ricardo"))
 488                           {
 489                           tux.flapping_mode = Player::RICARDO_FLAP;
 490                           last_keys.clear();
 491                           }
 492                         if(compare_last(last_keys, "ryan"))
 493                           {
 494                           tux.flapping_mode = Player::RYAN_FLAP;
 495                           last_keys.clear();
 496                           }
 497                   break;
 498
 499                 case SDL_JOYAXISMOTION:
 500                   if (event.jaxis.axis == joystick_keymap.x_axis)
 501                     {
 502                       if (event.jaxis.value < -joystick_keymap.dead_zone)
 503                         {
 504                           tux.input.left  = DOWN;
 505                           tux.input.right = UP;
 506                         }
 507                       else if (event.jaxis.value > joystick_keymap.dead_zone)
 508                         {
 509                           tux.input.left  = UP;
 510                           tux.input.right = DOWN;
 511                         }
 512                       else
 513                         {
 514                           tux.input.left  = DOWN;
 515                           tux.input.right = DOWN;
 516                         }
 517                     }
 518                   else if (event.jaxis.axis == joystick_keymap.y_axis)
 519                     {
 520                       if (event.jaxis.value > joystick_keymap.dead_zone)
 521                         {
 522                         tux.input.up = DOWN;
 523                         tux.input.down = UP;
 524                         }
 525                       else if (event.jaxis.value < -joystick_keymap.dead_zone)
 526                         {
 527                         tux.input.up = UP;
 528                         tux.input.down = DOWN;
 529                         }
 530                       else
 531                         {
 532                         tux.input.up = DOWN;
 533                         tux.input.down = DOWN;
 534                         }
 535                     }
 536                   break;
 537
 538                 case SDL_JOYHATMOTION:
 539                   if(event.jhat.value & SDL_HAT_UP) {
 540                     tux.input.up = DOWN;
 541                     tux.input.down = UP;
 542                   } else if(event.jhat.value & SDL_HAT_DOWN) {
 543                     tux.input.up = UP;
 544                     tux.input.down = DOWN;
 545                   } else if(event.jhat.value & SDL_HAT_LEFT) {
 546                     tux.input.left = DOWN;
 547                     tux.input.right = UP;
 548                   } else if(event.jhat.value & SDL_HAT_RIGHT) {
 549                     tux.input.left = UP;
 550                     tux.input.right = DOWN;
 551                   } else if(event.jhat.value == SDL_HAT_CENTERED) {
 552                     tux.input.left = UP;
 553                     tux.input.right = UP;
 554                     tux.input.up = UP;
 555                     tux.input.down = UP;
 556                   }
 557                   break;
 558
 559                 case SDL_JOYBUTTONDOWN:
 560                   if (event.jbutton.button == joystick_keymap.a_button)
 561                     tux.input.jump = DOWN;
 562                   else if (event.jbutton.button == joystick_keymap.b_button)
 563                     tux.input.fire = DOWN;
 564                   else if (event.jbutton.button == joystick_keymap.start_button)
 565                     on_escape_press();
 566                   break;
 567                 case SDL_JOYBUTTONUP:
 568                   if (event.jbutton.button == joystick_keymap.a_button)
 569                     tux.input.jump = UP;
 570                   else if (event.jbutton.button == joystick_keymap.b_button)
 571                     tux.input.fire = UP;
 572                   break;
 573
 574                 default:
 575                   break;
 576                 }  /* switch */
 577             }
 578         } /* while */
 579     }
 580 }
 581
 582 void
 583 GameSession::check_end_conditions()
 584 {
 585   Player* tux = currentsector->player;
 586
 587   /* End of level? */
 588   if(end_sequence && endsequence_timer.check()) {
 589       exit_status = ES_LEVEL_FINISHED;
 590       global_stats += last_swap_stats;  // add swap points stats
 591       return;
 592   } else if (!end_sequence && tux->is_dead()) {
 593     player_status.bonus = PlayerStatus::NO_BONUS;
 594
 595     if (player_status.lives < 0) { // No more lives!?
 596       exit_status = ES_GAME_OVER;
 597     } else { // Still has lives, so reset Tux to the levelstart
 598       restart_level();
 599     }
 600
 601     return;
 602   }
 603 }
 604
 605 void
 606 GameSession::action(float elapsed_time)
 607 {
 608   // advance timers
 609   if (exit_status == ES_NONE && !currentsector->player->growing_timer.check())
 610     {
 611       // Update Tux and the World
 612       currentsector->action(elapsed_time);
 613     }
 614
 615   // respawning in new sector?
 616   if(newsector != "" && newspawnpoint != "") {
 617     Sector* sector = level->get_sector(newsector);
 618     currentsector = sector;
 619     currentsector->activate(newspawnpoint);
 620     currentsector->play_music(LEVEL_MUSIC);
 621     newsector = newspawnpoint = "";
 622   }
 623 }
 624
 625 void
 626 GameSession::draw()
 627 {
 628   currentsector->draw(*context);
 629   drawstatus(*context);
 630
 631   if(game_pause)
 632     {
 633       int x = screen->h / 20;
 634       for(int i = 0; i < x; ++i)
 635         {
 636           context->draw_filled_rect(
 637               Vector(i % 2 ? (pause_menu_frame * i)%screen->w :
 638                 -((pause_menu_frame * i)%screen->w)
 639                 ,(i*20+pause_menu_frame)%screen->h),
 640               Vector(screen->w,10),
 641               Color(20,20,20, rand() % 20 + 1), LAYER_FOREGROUND1+1);
 642         }
 643       context->draw_filled_rect(
 644           Vector(0,0), Vector(screen->w, screen->h),
 645           Color(rand() % 50, rand() % 50, rand() % 50, 128), LAYER_FOREGROUND1);
 646       context->draw_text(blue_text, _("PAUSE - Press 'P' To Play"),
 647           Vector(screen->w/2, 230), CENTER_ALLIGN, LAYER_FOREGROUND1+2);
 648
 649       char str1[60];
 650       char str2[124];
 651       sprintf(str1, _("Playing: "));
 652       sprintf(str2, level->name.c_str());
 653
 654       context->draw_text(blue_text, str1,
 655           Vector((screen->w - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2, 340),
 656           LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 657       context->draw_text(white_text, str2,
 658           Vector(((screen->w - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2)+blue_text->get_text_width(str1), 340),
 659           LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 660     }
 661
 662   if(Menu::current())
 663     {
 664       Menu::current()->draw(*context);
 665       mouse_cursor->draw(*context);
 666     }
 667
 668   context->do_drawing();
 669 }
 670
 671 void
 672 GameSession::process_menu()
 673 {
 674   Menu* menu = Menu::current();
 675   if(menu)
 676     {
 677       menu->action();
 678
 679       if(menu == game_menu)
 680         {
 681           switch (game_menu->check())
 682             {
 683             case MNID_CONTINUE:
 684               Ticks::pause_stop();
 685               break;
 686             case MNID_ABORTLEVEL:
 687               Ticks::pause_stop();
 688               exit_status = ES_LEVEL_ABORT;
 689               break;
 690             }
 691         }
 692       else if(menu == options_menu)
 693         {
 694           process_options_menu();
 695         }
 696       else if(menu == load_game_menu )
 697         {
 698           process_load_game_menu();
 699         }
 700     }
 701 }
 702
 703 GameSession::ExitStatus
 704 GameSession::run()
 705 {
 706   Menu::set_current(0);
 707   current_ = this;
 708
 709   int fps_cnt = 0;
 710
 711   // Eat unneeded events
 712   SDL_Event event;
 713   while(SDL_PollEvent(&event))
 714   {}
 715
 716   draw();
 717
 718   Uint32 lastticks = SDL_GetTicks();
 719   fps_ticks = SDL_GetTicks();
 720
 721   frame_timer.start(.025, true);
 722   while (exit_status == ES_NONE) {
 723     Uint32 ticks = SDL_GetTicks();
 724     float elapsed_time = float(ticks - lastticks) / 1000.;
 725     global_time += elapsed_time;
 726     lastticks = ticks;
 727     // 40fps is minimum
 728     if(elapsed_time > .05)
 729       elapsed_time = .05;
 730
 731     if(frame_timer.check()) {
 732       ++global_frame_counter;
 733     }
 734
 735     /* Handle events: */
 736     currentsector->player->input.old_fire = currentsector->player->input.fire;
 737     currentsector->player->input.old_up = currentsector->player->input.old_up;
 738
 739     process_events();
 740     process_menu();
 741
 742     // Update the world state and all objects in the world
 743     // Do that with a constante time-delta so that the game will run
 744     // determistic and not different on different machines
 745     if(!game_pause && !Menu::current())
 746     {
 747       // Update the world
 748       check_end_conditions();
 749       if (end_sequence == ENDSEQUENCE_RUNNING)
 750         action(elapsed_time/2);
 751       else if(end_sequence == NO_ENDSEQUENCE)
 752         action(elapsed_time);
 753     }
 754     else
 755     {
 756       ++pause_menu_frame;
 757       SDL_Delay(50);
 758     }
 759
 760     draw();
 761
 762     /* Time stops in pause mode */
 763     if(game_pause || Menu::current())
 764     {
 765       continue;
 766     }
 767
 768     //frame_rate.update();
 769
 770     /* Handle time: */
 771     if (time_left.check() && currentsector->player->dying == DYING_NOT
 772         && !end_sequence)
 773       currentsector->player->kill(Player::KILL);
 774
 775     /* Handle music: */
 776     if(currentsector->player->invincible_timer.check() && !end_sequence)
 777     {
 778       currentsector->play_music(HERRING_MUSIC);
 779     }
 780     /* are we low on time ? */
 781     else if (time_left.get_timeleft() < TIME_WARNING && !end_sequence)
 782     {
 783       currentsector->play_music(HURRYUP_MUSIC);
 784     }
 785     /* or just normal music? */
 786     else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 787     {
 788       currentsector->play_music(LEVEL_MUSIC);
 789     }
 790
 791     /* Calculate frames per second */
 792     if(show_fps)
 793     {
 794       ++fps_cnt;
 795
 796       if(SDL_GetTicks() - fps_ticks >= 500)
 797       {
 798         fps_fps = (float) fps_cnt / .5;
 799         fps_cnt = 0;
 800         fps_ticks = SDL_GetTicks();
 801       }
 802     }
 803   }
 804
 805   return exit_status;
 806 }
 807
 808 void
 809 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 810 {
 811   newsector = sector;
 812   newspawnpoint = spawnpoint;
 813 }
 814
 815 void
 816 GameSession::start_sequence(const std::string& sequencename)
 817 {
 818   if(sequencename == "endsequence") {
 819     if(end_sequence)
 820       return;
 821
 822     end_sequence = ENDSEQUENCE_RUNNING;
 823     endsequence_timer.start(7.0); // 7 seconds until we finish the map
 824     last_x_pos = -1;
 825     SoundManager::get()->play_music(level_end_song, 0);
 826     currentsector->player->invincible_timer.start(7.0);
 827
 828     // add left time to stats
 829     global_stats.set_points(TIME_NEEDED_STAT,
 830         int(time_left.get_period() - time_left.get_timeleft()));
 831
 832     if(level->get_end_sequence_type() == Level::FIREWORKS_ENDSEQ_ANIM) {
 833       currentsector->add_object(new Fireworks());
 834     }
 835   } else {
 836     std::cout << "Unknown sequence '" << sequencename << "'.\n";
 837   }
 838 }
 839
 840 /* (Status): */
 841 void
 842 GameSession::drawstatus(DrawingContext& context)
 843 {
 844   char str[60];
 845
 846   snprintf(str, 60, " %d", global_stats.get_points(SCORE_STAT));
 847   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 848   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 849
 850   if(st_gl_mode == ST_GL_TEST)
 851     {
 852       context.draw_text(white_text, _("Press ESC To Return"), Vector(0,20),
 853           LEFT_ALLIGN, LAYER_FOREGROUND1);
 854     }
 855
 856   if(time_left.check()) {
 857     context.draw_text(white_text, _("TIME's UP"), Vector(screen->w/2, 0),
 858         CENTER_ALLIGN, LAYER_FOREGROUND1);
 859   } else if (time_left.get_timeleft() > TIME_WARNING
 860       || (global_frame_counter % 10) < 5) {
 861     sprintf(str, " %d", int(time_left.get_timeleft()));
 862     context.draw_text(white_text, _("TIME"),
 863         Vector(screen->w/2, 0), CENTER_ALLIGN, LAYER_FOREGROUND1);
 864     context.draw_text(gold_text, str,
 865         Vector(screen->w/2 + 4*16, 0), CENTER_ALLIGN, LAYER_FOREGROUND1);
 866   }
 867
 868   sprintf(str, " %d", player_status.distros);
 869   context.draw_text(white_text, _("COINS"),
 870       Vector(screen->w - white_text->get_text_width(_("COINS"))-white_text->get_text_width("   99"), 0),
 871         LEFT_ALLIGN, LAYER_FOREGROUND1);
 872   context.draw_text(gold_text, str,
 873       Vector(screen->w - gold_text->get_text_width(" 99"), 0),LEFT_ALLIGN, LAYER_FOREGROUND1);
 874
 875   if (player_status.lives >= 5)
 876     {
 877       sprintf(str, "%dx", player_status.lives);
 878       float x = screen->w - gold_text->get_text_width(str) - tux_life->w;
 879       context.draw_text(gold_text, str, Vector(x, 20), LEFT_ALLIGN, LAYER_FOREGROUND1);
 880       context.draw_surface(tux_life, Vector(screen->w - 16, 20),
 881           LAYER_FOREGROUND1);
 882     }
 883   else
 884     {
 885       for(int i= 0; i < player_status.lives; ++i)
 886         context.draw_surface(tux_life,
 887             Vector(screen->w - tux_life->w*4 +(tux_life->w*i), 20),
 888             LAYER_FOREGROUND1);
 889     }
 890
 891   context.draw_text(white_text, _("LIVES"),
 892       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 20),
 893       LEFT_ALLIGN, LAYER_FOREGROUND1);
 894
 895   if(show_fps)
 896     {
 897       sprintf(str, "%2.1f", fps_fps);
 898       context.draw_text(white_text, "FPS",
 899           Vector(screen->w - white_text->get_text_width("FPS     "), 40),
 900           LEFT_ALLIGN, LAYER_FOREGROUND1);
 901       context.draw_text(gold_text, str,
 902           Vector(screen->w-4*16, 40), LEFT_ALLIGN, LAYER_FOREGROUND1);
 903     }
 904 }
 905
 906 void
 907 GameSession::drawresultscreen(void)
 908 {
 909   char str[80];
 910
 911   DrawingContext context;
 912   currentsector->background->draw(context);
 913
 914   context.draw_text(blue_text, _("Result:"), Vector(screen->w/2, 200),
 915       CENTER_ALLIGN, LAYER_FOREGROUND1);
 916
 917   sprintf(str, _("SCORE: %d"), global_stats.get_points(SCORE_STAT));
 918   context.draw_text(gold_text, str, Vector(screen->w/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 919
 920   sprintf(str, _("COINS: %d"), player_status.distros);
 921   context.draw_text(gold_text, str, Vector(screen->w/2, 256), CENTER_ALLIGN, LAYER_FOREGROUND1);
 922
 923   context.do_drawing();
 924
 925   SDL_Event event;
 926   wait_for_event(event,2000,5000,true);
 927 }
 928
 929 std::string slotinfo(int slot)
 930 {
 931   std::string tmp;
 932   std::string slotfile;
 933   std::string title;
 934   std::stringstream stream;
 935   stream << slot;
 936   slotfile = st_save_dir + "/slot" + stream.str() + ".stsg";
 937
 938   lisp_object_t* savegame = lisp_read_from_file(slotfile.c_str());
 939   if (savegame)
 940     {
 941       LispReader reader(lisp_cdr(savegame));
 942       reader.read_string("title", title);
 943       lisp_free(savegame);
 944     }
 945
 946   if (access(slotfile.c_str(), F_OK) == 0)
 947     {
 948       if (!title.empty())
 949         tmp = "Slot " + stream.str() + " - " + title;
 950       else
 951         tmp = "Slot " + stream.str() + " - Savegame";
 952     }
 953   else
 954     tmp = std::string(_("Slot")) + " " + stream.str() + " - " + std::string(_("Free"));
 955
 956   return tmp;
 957 }
 958
 959 bool process_load_game_menu()
 960 {
 961   int slot = load_game_menu->check();
 962
 963   if(slot != -1 && load_game_menu->get_item_by_id(slot).kind == MN_ACTION)
 964     {
 965       std::stringstream stream;
 966       stream << slot;
 967       std::string slotfile = st_save_dir + "/slot" + stream.str() + ".stsg";
 968
 969       if (access(slotfile.c_str(), F_OK) != 0)
 970         {
 971           shrink_fade(Vector(screen->w/2,screen->h/2), 600);
 972           draw_intro();
 973         }
 974
 975       fadeout(256);
 976       DrawingContext context;
 977       context.draw_text(white_text, "Loading...",
 978                         Vector(screen->w/2, screen->h/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 979       context.do_drawing();
 980
 981       WorldMapNS::WorldMap worldmap;
 982
 983       worldmap.set_map_filename("icyisland.stwm");
 984       // Load the game or at least set the savegame_file variable
 985       worldmap.loadgame(slotfile);
 986
 987       worldmap.display();
 988
 989       Menu::set_current(main_menu);
 990
 991       Ticks::pause_stop();
 992       return true;
 993     }
 994   else
 995     {
 996       return false;
 997     }
 998 }