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 "tile.h"
  54 #include "particlesystem.h"
  55 #include "resources.h"
  56 #include "background.h"
  57 #include "tilemap.h"
  58 #include "app/gettext.h"
  59 #include "worldmap.h"
  60 #include "intro.h"
  61 #include "misc.h"
  62 #include "camera.h"
  63 #include "statistics.h"
  64 #include "timer.h"
  65 #include "object/fireworks.h"
  66
  67 GameSession* GameSession::current_ = 0;
  68
  69 bool compare_last(std::string& haystack, std::string needle)
  70 {
  71   int haystack_size = haystack.size();
  72   int needle_size = needle.size();
  73
  74   if(haystack_size < needle_size)
  75     return false;
  76
  77   if(haystack.compare(haystack_size-needle_size, needle_size, needle) == 0)
  78     return true;
  79   return false;
  80 }
  81
  82 GameSession::GameSession(const std::string& levelfile_, int mode,
  83     bool flip_level_, Statistics* statistics)
  84   : level(0), currentsector(0), st_gl_mode(mode),
  85     end_sequence(NO_ENDSEQUENCE), levelfile(levelfile_),
  86     flip_level(flip_level_), best_level_statistics(statistics)
  87 {
  88   current_ = this;
  89
  90   game_pause = false;
  91   fps_fps = 0;
  92
  93   context = new DrawingContext();
  94
  95   if(flip_levels_mode)
  96     flip_level = true;
  97
  98   last_swap_point = Vector(-1, -1);
  99   last_swap_stats.reset();
 100
 101   restart_level();
 102 }
 103
 104 void
 105 GameSession::restart_level()
 106 {
 107   game_pause   = false;
 108   exit_status  = ES_NONE;
 109   end_sequence = NO_ENDSEQUENCE;
 110
 111   last_keys.clear();
 112
 113 #if 0
 114   Vector tux_pos = Vector(-1,-1);
 115   if (currentsector)
 116     {
 117       // Tux has lost a life, so we try to respawn him at the nearest reset point
 118       tux_pos = currentsector->player->base;
 119     }
 120 #endif
 121
 122   delete level;
 123   currentsector = 0;
 124
 125   level = new Level;
 126   level->load(levelfile);
 127   if(flip_level)
 128     level->do_vertical_flip();
 129
 130   global_stats.reset();
 131   global_stats.set_total_points(COINS_COLLECTED_STAT, level->get_total_coins());
 132   global_stats.set_total_points(BADGUYS_KILLED_STAT, level->get_total_badguys());
 133   global_stats.set_total_points(TIME_NEEDED_STAT, level->timelimit);
 134
 135   currentsector = level->get_sector("main");
 136   if(!currentsector)
 137     Termination::abort("Level has no main sector.", "");
 138   currentsector->activate("main");
 139
 140 #if 0
 141   // Set Tux to the nearest reset point
 142   if(tux_pos.x != -1)
 143     {
 144     tux_pos = currentsector->get_best_spawn_point(tux_pos);
 145
 146     if(last_swap_point.x > tux_pos.x)
 147       tux_pos = last_swap_point;
 148     else  // new swap point
 149       {
 150       last_swap_point = tux_pos;
 151
 152       last_swap_stats += global_stats;
 153       }
 154
 155     currentsector->player->base.x = tux_pos.x;
 156     currentsector->player->base.y = tux_pos.y;
 157
 158     // has to reset camera on swapping
 159     currentsector->camera->reset(Vector(currentsector->player->base.x,
 160                                         currentsector->player->base.y));
 161     }
 162 #endif
 163
 164   if (st_gl_mode != ST_GL_DEMO_GAME)
 165     {
 166       if(st_gl_mode == ST_GL_PLAY || st_gl_mode == ST_GL_LOAD_LEVEL_FILE)
 167         levelintro();
 168     }
 169
 170   start_timers();
 171   currentsector->play_music(LEVEL_MUSIC);
 172 }
 173
 174 GameSession::~GameSession()
 175 {
 176   delete level;
 177   delete context;
 178 }
 179
 180 void
 181 GameSession::levelintro(void)
 182 {
 183   SoundManager::get()->halt_music();
 184
 185   char str[60];
 186
 187   DrawingContext context;
 188   if(currentsector->background)
 189     currentsector->background->draw(context);
 190
 191 //  context.draw_text(gold_text, level->get_name(), Vector(screen->w/2, 160),
 192 //      CENTER_ALLIGN, LAYER_FOREGROUND1);
 193   context.draw_center_text(gold_text, level->get_name(), Vector(0, 160),
 194       LAYER_FOREGROUND1);
 195
 196   sprintf(str, "TUX x %d", player_status.lives);
 197   context.draw_text(white_text, str, Vector(screen->w/2, 210),
 198       CENTER_ALLIGN, LAYER_FOREGROUND1);
 199
 200   if((level->get_author().size()) && (level->get_author() != "SuperTux Team"))
 201     //TODO make author check case/blank-insensitive
 202     context.draw_text(white_small_text,
 203       std::string(_("contributed by ")) + level->get_author(),
 204       Vector(screen->w/2, 350), CENTER_ALLIGN, LAYER_FOREGROUND1);
 205
 206
 207   if(flip_level)
 208     context.draw_text(white_text,
 209       _("Level Vertically Flipped!"),
 210       Vector(screen->w/2, 310), CENTER_ALLIGN, LAYER_FOREGROUND1);
 211
 212   if(best_level_statistics != NULL)
 213     best_level_statistics->draw_message_info(context, _("Best Level Statistics"));
 214
 215   context.do_drawing();
 216
 217   SDL_Event event;
 218   wait_for_event(event,1000,3000,true);
 219 }
 220
 221 /* Reset Timers */
 222 void
 223 GameSession::start_timers()
 224 {
 225   time_left.start(level->timelimit);
 226   Ticks::pause_init();
 227 }
 228
 229 void
 230 GameSession::on_escape_press()
 231 {
 232   if(currentsector->player->dying || end_sequence != NO_ENDSEQUENCE)
 233     return;   // don't let the player open the menu, when he is dying
 234
 235   if(game_pause)
 236     return;
 237
 238   if(st_gl_mode == ST_GL_TEST)
 239     {
 240       exit_status = ES_LEVEL_ABORT;
 241     }
 242   else if (!Menu::current())
 243     {
 244       /* Tell Tux that the keys are all down, otherwise
 245         it could have nasty bugs, like going allways to the right
 246         or whatever that key does */
 247       Player& tux = *(currentsector->player);
 248       tux.key_event((SDLKey)keymap.up, UP);
 249       tux.key_event((SDLKey)keymap.down, UP);
 250       tux.key_event((SDLKey)keymap.left, UP);
 251       tux.key_event((SDLKey)keymap.right, UP);
 252       tux.key_event((SDLKey)keymap.jump, UP);
 253       tux.key_event((SDLKey)keymap.power, UP);
 254
 255       Menu::set_current(game_menu);
 256       Ticks::pause_start();
 257     }
 258 }
 259
 260 void
 261 GameSession::process_events()
 262 {
 263   if (end_sequence != NO_ENDSEQUENCE)
 264     {
 265       Player& tux = *currentsector->player;
 266
 267       tux.input.fire  = UP;
 268       tux.input.left  = UP;
 269       tux.input.right = DOWN;
 270       tux.input.down  = UP;
 271
 272       if (int(last_x_pos) == int(tux.get_pos().x))
 273         tux.input.up    = DOWN;
 274       else
 275         tux.input.up    = UP;
 276
 277       last_x_pos = tux.get_pos().x;
 278
 279       SDL_Event event;
 280       while (SDL_PollEvent(&event))
 281         {
 282           /* Check for menu-events, if the menu is shown */
 283           if (Menu::current())
 284             {
 285               Menu::current()->event(event);
 286               if(!Menu::current())
 287               Ticks::pause_stop();
 288             }
 289
 290           switch(event.type)
 291             {
 292             case SDL_QUIT:        /* Quit event - quit: */
 293               Termination::abort("Received window close", "");
 294               break;
 295
 296             case SDL_KEYDOWN:     /* A keypress! */
 297               {
 298                 SDLKey key = event.key.keysym.sym;
 299
 300                 switch(key)
 301                   {
 302                   case SDLK_ESCAPE:    /* Escape: Open/Close the menu: */
 303                     on_escape_press();
 304                     break;
 305                   default:
 306                     break;
 307                   }
 308               }
 309
 310             case SDL_JOYBUTTONDOWN:
 311               if (event.jbutton.button == joystick_keymap.start_button)
 312                 on_escape_press();
 313               break;
 314             }
 315         }
 316     }
 317   else // normal mode
 318     {
 319       if(!Menu::current() && !game_pause)
 320         Ticks::pause_stop();
 321
 322       SDL_Event event;
 323       while (SDL_PollEvent(&event))
 324         {
 325           /* Check for menu-events, if the menu is shown */
 326           if (Menu::current())
 327             {
 328               Menu::current()->event(event);
 329               if(!Menu::current())
 330                 Ticks::pause_stop();
 331             }
 332           else
 333             {
 334               Player& tux = *currentsector->player;
 335
 336               switch(event.type)
 337                 {
 338                 case SDL_QUIT:        /* Quit event - quit: */
 339                   Termination::abort("Received window close", "");
 340                   break;
 341
 342                 case SDL_KEYDOWN:     /* A keypress! */
 343                   {
 344                     SDLKey key = event.key.keysym.sym;
 345
 346                     if(tux.key_event(key,DOWN))
 347                       break;
 348
 349                     switch(key)
 350                       {
 351                       case SDLK_ESCAPE:    /* Escape: Open/Close the menu: */
 352                         on_escape_press();
 353                         break;
 354                       default:
 355                         break;
 356                       }
 357                   }
 358                   break;
 359                 case SDL_KEYUP:      /* A keyrelease! */
 360                   {
 361                     SDLKey key = event.key.keysym.sym;
 362
 363                     if(tux.key_event(key, UP))
 364                       break;
 365
 366                     switch(key)
 367                       {
 368                       case SDLK_a:
 369                         if(debug_mode)
 370                         {
 371                           char buf[160];
 372                           snprintf(buf, sizeof(buf), "P: %4.1f,%4.1f",
 373                               tux.get_pos().x, tux.get_pos().y);
 374                           context->draw_text(white_text, buf,
 375                               Vector(0, screen->h - white_text->get_height()),
 376                               LEFT_ALLIGN, LAYER_FOREGROUND1);
 377                           context->do_drawing();
 378                           SDL_Delay(1000);
 379                         }
 380                         break;
 381                       case SDLK_p:
 382                         if(!Menu::current())
 383                           {
 384                           // "lifeup" cheat activates pause cause of the 'p'
 385                           // so work around to ignore it
 386                             if(compare_last(last_keys, "lifeu"))
 387                               break;
 388
 389                             if(game_pause)
 390                               {
 391                                 game_pause = false;
 392                                 Ticks::pause_stop();
 393                               }
 394                             else
 395                               {
 396                                 game_pause = true;
 397                                 Ticks::pause_start();
 398                               }
 399                           }
 400                         break;
 401                       default:
 402                         break;
 403                       }
 404                   }
 405
 406                         /* Check if chacrater is ASCII */
 407                         char ch[2];
 408                         if((event.key.keysym.unicode & 0xFF80) == 0)
 409                           {
 410                           ch[0] = event.key.keysym.unicode & 0x7F;
 411                           ch[1] = '\0';
 412                           }
 413                         last_keys.append(ch);  // add to cheat keys
 414
 415                         // Cheating words (the goal of this is really for debugging,
 416                         // but could be used for some cheating, nothing wrong with that)
 417                         if(compare_last(last_keys, "grow"))
 418                           {
 419                           tux.grow(false);
 420                           last_keys.clear();
 421                           }
 422                         if(compare_last(last_keys, "fire"))
 423                           {
 424                           tux.grow(false);
 425                           tux.got_power = tux.FIRE_POWER;
 426                           last_keys.clear();
 427                           }
 428                         if(compare_last(last_keys, "ice"))
 429                           {
 430                           tux.grow(false);
 431                           tux.got_power = tux.ICE_POWER;
 432                           last_keys.clear();
 433                           }
 434                         if(compare_last(last_keys, "lifeup"))
 435                           {
 436                           player_status.lives++;
 437                           last_keys.clear();
 438                           }
 439                         if(compare_last(last_keys, "lifedown"))
 440                           {
 441                           player_status.lives--;
 442                           last_keys.clear();
 443                           }
 444                         if(compare_last(last_keys, "grease"))
 445                           {
 446                           tux.physic.set_velocity_x(tux.physic.get_velocity_x()*3);
 447                           last_keys.clear();
 448                           }
 449                         if(compare_last(last_keys, "invincible"))
 450                           {    // be invincle for the rest of the level
 451                           tux.invincible_timer.start(10000);
 452                           last_keys.clear();
 453                           }
 454                         if(compare_last(last_keys, "shrink"))
 455                           {    // remove powerups
 456                           tux.kill(tux.SHRINK);
 457                           last_keys.clear();
 458                           }
 459                         if(compare_last(last_keys, "kill"))
 460                           {    // kill Tux, but without losing a life
 461                           player_status.lives++;
 462                           tux.kill(tux.KILL);
 463                           last_keys.clear();
 464                           }
 465                         if(compare_last(last_keys, "grid"))
 466                           {    // toggle debug grid
 467                           debug_grid = !debug_grid;
 468                           last_keys.clear();
 469                           }
 470                         if(compare_last(last_keys, "hover"))
 471                           {    // toggle hover ability on/off
 472                           tux.enable_hover = !tux.enable_hover;
 473                           last_keys.clear();
 474                           }
 475                         if(compare_last(last_keys, "gotoend"))
 476                           {    // goes to the end of the level
 477                           tux.move(Vector(
 478                               (currentsector->solids->get_width()*32)
 479                                 - (screen->w*2),
 480                                 0));
 481                           currentsector->camera->reset(
 482                               Vector(tux.get_pos().x, tux.get_pos().y));
 483                           last_keys.clear();
 484                           }
 485                         // temporary to help player's choosing a flapping
 486                         if(compare_last(last_keys, "marek"))
 487                           {
 488                           tux.flapping_mode = Player::MAREK_FLAP;
 489                           last_keys.clear();
 490                           }
 491                         if(compare_last(last_keys, "ricardo"))
 492                           {
 493                           tux.flapping_mode = Player::RICARDO_FLAP;
 494                           last_keys.clear();
 495                           }
 496                         if(compare_last(last_keys, "ryan"))
 497                           {
 498                           tux.flapping_mode = Player::RYAN_FLAP;
 499                           last_keys.clear();
 500                           }
 501                   break;
 502
 503                 case SDL_JOYAXISMOTION:
 504                   if (event.jaxis.axis == joystick_keymap.x_axis)
 505                     {
 506                       if (event.jaxis.value < -joystick_keymap.dead_zone)
 507                         {
 508                           tux.input.left  = DOWN;
 509                           tux.input.right = UP;
 510                         }
 511                       else if (event.jaxis.value > joystick_keymap.dead_zone)
 512                         {
 513                           tux.input.left  = UP;
 514                           tux.input.right = DOWN;
 515                         }
 516                       else
 517                         {
 518                           tux.input.left  = DOWN;
 519                           tux.input.right = DOWN;
 520                         }
 521                     }
 522                   else if (event.jaxis.axis == joystick_keymap.y_axis)
 523                     {
 524                       if (event.jaxis.value > joystick_keymap.dead_zone)
 525                         {
 526                         tux.input.up = DOWN;
 527                         tux.input.down = UP;
 528                         }
 529                       else if (event.jaxis.value < -joystick_keymap.dead_zone)
 530                         {
 531                         tux.input.up = UP;
 532                         tux.input.down = DOWN;
 533                         }
 534                       else
 535                         {
 536                         tux.input.up = DOWN;
 537                         tux.input.down = DOWN;
 538                         }
 539                     }
 540                   break;
 541
 542                 case SDL_JOYHATMOTION:
 543                   if(event.jhat.value & SDL_HAT_UP) {
 544                     tux.input.up = DOWN;
 545                     tux.input.down = UP;
 546                   } else if(event.jhat.value & SDL_HAT_DOWN) {
 547                     tux.input.up = UP;
 548                     tux.input.down = DOWN;
 549                   } else if(event.jhat.value & SDL_HAT_LEFT) {
 550                     tux.input.left = DOWN;
 551                     tux.input.right = UP;
 552                   } else if(event.jhat.value & SDL_HAT_RIGHT) {
 553                     tux.input.left = UP;
 554                     tux.input.right = DOWN;
 555                   } else if(event.jhat.value == SDL_HAT_CENTERED) {
 556                     tux.input.left = UP;
 557                     tux.input.right = UP;
 558                     tux.input.up = UP;
 559                     tux.input.down = UP;
 560                   }
 561                   break;
 562
 563                 case SDL_JOYBUTTONDOWN:
 564                   if (event.jbutton.button == joystick_keymap.a_button)
 565                     tux.input.jump = DOWN;
 566                   else if (event.jbutton.button == joystick_keymap.b_button)
 567                     tux.input.fire = DOWN;
 568                   else if (event.jbutton.button == joystick_keymap.start_button)
 569                     on_escape_press();
 570                   break;
 571                 case SDL_JOYBUTTONUP:
 572                   if (event.jbutton.button == joystick_keymap.a_button)
 573                     tux.input.jump = UP;
 574                   else if (event.jbutton.button == joystick_keymap.b_button)
 575                     tux.input.fire = UP;
 576                   break;
 577
 578                 default:
 579                   break;
 580                 }  /* switch */
 581             }
 582         } /* while */
 583     }
 584 }
 585
 586 void
 587 GameSession::check_end_conditions()
 588 {
 589   Player* tux = currentsector->player;
 590
 591   /* End of level? */
 592   if(end_sequence && endsequence_timer.check()) {
 593       exit_status = ES_LEVEL_FINISHED;
 594       global_stats += last_swap_stats;  // add swap points stats
 595       return;
 596   } else if (!end_sequence && tux->is_dead()) {
 597     player_status.bonus = PlayerStatus::NO_BONUS;
 598
 599     if (player_status.lives < 0) { // No more lives!?
 600       exit_status = ES_GAME_OVER;
 601     } else { // Still has lives, so reset Tux to the levelstart
 602       restart_level();
 603     }
 604
 605     return;
 606   }
 607 }
 608
 609 void
 610 GameSession::action(float elapsed_time)
 611 {
 612   // advance timers
 613   if (exit_status == ES_NONE && !currentsector->player->growing_timer.check())
 614     {
 615       // Update Tux and the World
 616       currentsector->action(elapsed_time);
 617     }
 618
 619   // respawning in new sector?
 620   if(newsector != "" && newspawnpoint != "") {
 621     Sector* sector = level->get_sector(newsector);
 622     currentsector = sector;
 623     currentsector->activate(newspawnpoint);
 624     currentsector->play_music(LEVEL_MUSIC);
 625     newsector = newspawnpoint = "";
 626   }
 627 }
 628
 629 void
 630 GameSession::draw()
 631 {
 632   currentsector->draw(*context);
 633   drawstatus(*context);
 634
 635   if(game_pause)
 636     {
 637       int x = screen->h / 20;
 638       for(int i = 0; i < x; ++i)
 639         {
 640           context->draw_filled_rect(
 641               Vector(i % 2 ? (pause_menu_frame * i)%screen->w :
 642                 -((pause_menu_frame * i)%screen->w)
 643                 ,(i*20+pause_menu_frame)%screen->h),
 644               Vector(screen->w,10),
 645               Color(20,20,20, rand() % 20 + 1), LAYER_FOREGROUND1+1);
 646         }
 647       context->draw_filled_rect(
 648           Vector(0,0), Vector(screen->w, screen->h),
 649           Color(rand() % 50, rand() % 50, rand() % 50, 128), LAYER_FOREGROUND1);
 650       context->draw_text(blue_text, _("PAUSE - Press 'P' To Play"),
 651           Vector(screen->w/2, 230), CENTER_ALLIGN, LAYER_FOREGROUND1+2);
 652
 653       char str1[60];
 654       char str2[124];
 655       sprintf(str1, _("Playing: "));
 656       sprintf(str2, level->name.c_str());
 657
 658       context->draw_text(blue_text, str1,
 659           Vector((screen->w - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2, 340),
 660           LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 661       context->draw_text(white_text, str2,
 662           Vector(((screen->w - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2)+blue_text->get_text_width(str1), 340),
 663           LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 664     }
 665
 666   if(Menu::current())
 667     {
 668       Menu::current()->draw(*context);
 669       mouse_cursor->draw(*context);
 670     }
 671
 672   context->do_drawing();
 673 }
 674
 675 void
 676 GameSession::process_menu()
 677 {
 678   Menu* menu = Menu::current();
 679   if(menu)
 680     {
 681       menu->action();
 682
 683       if(menu == game_menu)
 684         {
 685           switch (game_menu->check())
 686             {
 687             case MNID_CONTINUE:
 688               Ticks::pause_stop();
 689               break;
 690             case MNID_ABORTLEVEL:
 691               Ticks::pause_stop();
 692               exit_status = ES_LEVEL_ABORT;
 693               break;
 694             }
 695         }
 696       else if(menu == options_menu)
 697         {
 698           process_options_menu();
 699         }
 700       else if(menu == load_game_menu )
 701         {
 702           process_load_game_menu();
 703         }
 704     }
 705 }
 706
 707 GameSession::ExitStatus
 708 GameSession::run()
 709 {
 710   Menu::set_current(0);
 711   current_ = this;
 712
 713   int fps_cnt = 0;
 714
 715   // Eat unneeded events
 716   SDL_Event event;
 717   while(SDL_PollEvent(&event))
 718   {}
 719
 720   draw();
 721
 722   Uint32 lastticks = SDL_GetTicks();
 723   fps_ticks = SDL_GetTicks();
 724
 725   while (exit_status == ES_NONE) {
 726     Uint32 ticks = SDL_GetTicks();
 727     float elapsed_time = float(ticks - lastticks) / 1000.;
 728     if(!game_pause)
 729       global_time += elapsed_time;
 730     lastticks = ticks;
 731
 732     // 40fps is minimum
 733     if(elapsed_time > .025)
 734       elapsed_time = .025;
 735
 736     /* Handle events: */
 737     currentsector->player->input.old_fire = currentsector->player->input.fire;
 738     currentsector->player->input.old_up = currentsector->player->input.old_up;
 739
 740     process_events();
 741     process_menu();
 742
 743     // Update the world state and all objects in the world
 744     // Do that with a constante time-delta so that the game will run
 745     // determistic and not different on different machines
 746     if(!game_pause && !Menu::current())
 747     {
 748       // Update the world
 749       check_end_conditions();
 750       if (end_sequence == ENDSEQUENCE_RUNNING)
 751         action(elapsed_time/2);
 752       else if(end_sequence == NO_ENDSEQUENCE)
 753         action(elapsed_time);
 754     }
 755     else
 756     {
 757       ++pause_menu_frame;
 758       SDL_Delay(50);
 759     }
 760
 761     draw();
 762
 763     /* Time stops in pause mode */
 764     if(game_pause || Menu::current())
 765     {
 766       continue;
 767     }
 768
 769     //frame_rate.update();
 770
 771     /* Handle time: */
 772     if (time_left.check() && currentsector->player->dying == DYING_NOT
 773         && !end_sequence)
 774       currentsector->player->kill(Player::KILL);
 775
 776     /* Handle music: */
 777     if(currentsector->player->invincible_timer.check() && !end_sequence)
 778     {
 779       currentsector->play_music(HERRING_MUSIC);
 780     }
 781     /* are we low on time ? */
 782     else if (time_left.get_timeleft() < TIME_WARNING && !end_sequence)
 783     {
 784       currentsector->play_music(HURRYUP_MUSIC);
 785     }
 786     /* or just normal music? */
 787     else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 788     {
 789       currentsector->play_music(LEVEL_MUSIC);
 790     }
 791
 792     /* Calculate frames per second */
 793     if(show_fps)
 794     {
 795       ++fps_cnt;
 796
 797       if(SDL_GetTicks() - fps_ticks >= 500)
 798       {
 799         fps_fps = (float) fps_cnt / .5;
 800         fps_cnt = 0;
 801         fps_ticks = SDL_GetTicks();
 802       }
 803     }
 804   }
 805
 806   return exit_status;
 807 }
 808
 809 void
 810 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 811 {
 812   newsector = sector;
 813   newspawnpoint = spawnpoint;
 814 }
 815
 816 void
 817 GameSession::start_sequence(const std::string& sequencename)
 818 {
 819   if(sequencename == "endsequence") {
 820     if(end_sequence)
 821       return;
 822
 823     end_sequence = ENDSEQUENCE_RUNNING;
 824     endsequence_timer.start(7.0); // 7 seconds until we finish the map
 825     last_x_pos = -1;
 826     SoundManager::get()->play_music(level_end_song, 0);
 827     currentsector->player->invincible_timer.start(7.0);
 828
 829     // add left time to stats
 830     global_stats.set_points(TIME_NEEDED_STAT,
 831         int(time_left.get_period() - time_left.get_timeleft()));
 832
 833     if(level->get_end_sequence_type() == Level::FIREWORKS_ENDSEQ_ANIM) {
 834       currentsector->add_object(new Fireworks());
 835     }
 836   } else {
 837     std::cout << "Unknown sequence '" << sequencename << "'.\n";
 838   }
 839 }
 840
 841 /* (Status): */
 842 void
 843 GameSession::drawstatus(DrawingContext& context)
 844 {
 845   char str[60];
 846
 847   snprintf(str, 60, " %d", global_stats.get_points(SCORE_STAT));
 848   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 849   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 850
 851   if(st_gl_mode == ST_GL_TEST)
 852     {
 853       context.draw_text(white_text, _("Press ESC To Return"), Vector(0,20),
 854           LEFT_ALLIGN, LAYER_FOREGROUND1);
 855     }
 856
 857   if(time_left.check()) {
 858     context.draw_text(white_text, _("TIME's UP"), Vector(screen->w/2, 0),
 859         CENTER_ALLIGN, LAYER_FOREGROUND1);
 860   } else if (time_left.get_timeleft() > TIME_WARNING
 861       || int(global_time * 2.5) % 2) {
 862     sprintf(str, " %d", int(time_left.get_timeleft()));
 863     context.draw_text(white_text, _("TIME"),
 864         Vector(screen->w/2, 0), CENTER_ALLIGN, LAYER_FOREGROUND1);
 865     context.draw_text(gold_text, str,
 866         Vector(screen->w/2 + 4*16, 0), CENTER_ALLIGN, LAYER_FOREGROUND1);
 867   }
 868
 869   sprintf(str, " %d", player_status.distros);
 870   context.draw_text(white_text, _("COINS"),
 871       Vector(screen->w - white_text->get_text_width(_("COINS"))-white_text->get_text_width("   99"), 0),
 872         LEFT_ALLIGN, LAYER_FOREGROUND1);
 873   context.draw_text(gold_text, str,
 874       Vector(screen->w - gold_text->get_text_width(" 99"), 0),LEFT_ALLIGN, LAYER_FOREGROUND1);
 875
 876   if (player_status.lives >= 5)
 877     {
 878       sprintf(str, "%dx", player_status.lives);
 879       float x = screen->w - gold_text->get_text_width(str) - tux_life->w;
 880       context.draw_text(gold_text, str, Vector(x, 20), LEFT_ALLIGN, LAYER_FOREGROUND1);
 881       context.draw_surface(tux_life, Vector(screen->w - 16, 20),
 882           LAYER_FOREGROUND1);
 883     }
 884   else
 885     {
 886       for(int i= 0; i < player_status.lives; ++i)
 887         context.draw_surface(tux_life,
 888             Vector(screen->w - tux_life->w*4 +(tux_life->w*i), 20),
 889             LAYER_FOREGROUND1);
 890     }
 891
 892   context.draw_text(white_text, _("LIVES"),
 893       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 20),
 894       LEFT_ALLIGN, LAYER_FOREGROUND1);
 895
 896   if(show_fps)
 897     {
 898       sprintf(str, "%2.1f", fps_fps);
 899       context.draw_text(white_text, "FPS",
 900           Vector(screen->w - white_text->get_text_width("FPS     "), 40),
 901           LEFT_ALLIGN, LAYER_FOREGROUND1);
 902       context.draw_text(gold_text, str,
 903           Vector(screen->w-4*16, 40), LEFT_ALLIGN, LAYER_FOREGROUND1);
 904     }
 905 }
 906
 907 void
 908 GameSession::drawresultscreen(void)
 909 {
 910   char str[80];
 911
 912   DrawingContext context;
 913   currentsector->background->draw(context);
 914
 915   context.draw_text(blue_text, _("Result:"), Vector(screen->w/2, 200),
 916       CENTER_ALLIGN, LAYER_FOREGROUND1);
 917
 918   sprintf(str, _("SCORE: %d"), global_stats.get_points(SCORE_STAT));
 919   context.draw_text(gold_text, str, Vector(screen->w/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 920
 921   sprintf(str, _("COINS: %d"), player_status.distros);
 922   context.draw_text(gold_text, str, Vector(screen->w/2, 256), CENTER_ALLIGN, LAYER_FOREGROUND1);
 923
 924   context.do_drawing();
 925
 926   SDL_Event event;
 927   wait_for_event(event,2000,5000,true);
 928 }
 929
 930 std::string slotinfo(int slot)
 931 {
 932   std::string tmp;
 933   std::string slotfile;
 934   std::string title;
 935   std::stringstream stream;
 936   stream << slot;
 937   slotfile = st_save_dir + "/slot" + stream.str() + ".stsg";
 938
 939   lisp_object_t* savegame = lisp_read_from_file(slotfile.c_str());
 940   if (savegame)
 941     {
 942       LispReader reader(lisp_cdr(savegame));
 943       reader.read_string("title", title);
 944       lisp_free(savegame);
 945     }
 946
 947   if (access(slotfile.c_str(), F_OK) == 0)
 948     {
 949       if (!title.empty())
 950         tmp = "Slot " + stream.str() + " - " + title;
 951       else
 952         tmp = "Slot " + stream.str() + " - Savegame";
 953     }
 954   else
 955     tmp = std::string(_("Slot")) + " " + stream.str() + " - " + std::string(_("Free"));
 956
 957   return tmp;
 958 }
 959
 960 bool process_load_game_menu()
 961 {
 962   int slot = load_game_menu->check();
 963
 964   if(slot != -1 && load_game_menu->get_item_by_id(slot).kind == MN_ACTION)
 965     {
 966       std::stringstream stream;
 967       stream << slot;
 968       std::string slotfile = st_save_dir + "/slot" + stream.str() + ".stsg";
 969
 970       if (access(slotfile.c_str(), F_OK) != 0)
 971         {
 972           shrink_fade(Vector(screen->w/2,screen->h/2), 600);
 973           draw_intro();
 974         }
 975
 976       fadeout(256);
 977       DrawingContext context;
 978       context.draw_text(white_text, "Loading...",
 979                         Vector(screen->w/2, screen->h/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 980       context.do_drawing();
 981
 982       WorldMapNS::WorldMap worldmap;
 983
 984       worldmap.set_map_filename("icyisland.stwm");
 985       // Load the game or at least set the savegame_file variable
 986       worldmap.loadgame(slotfile);
 987
 988       worldmap.display();
 989
 990       Menu::set_current(main_menu);
 991
 992       Ticks::pause_stop();
 993       return true;
 994     }
 995   else
 996     {
 997       return false;
 998     }
 999 }