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 <iostream>
  23 #include <sstream>
  24 #include <cassert>
  25 #include <cstdio>
  26 #include <cstdlib>
  27 #include <cmath>
  28 #include <cstring>
  29 #include <cerrno>
  30 #include <unistd.h>
  31 #include <ctime>
  32
  33 #include "SDL.h"
  34
  35 #ifndef WIN32
  36 #include <sys/types.h>
  37 #include <ctype.h>
  38 #endif
  39
  40 #include "defines.h"
  41 #include "app/globals.h"
  42 #include "gameloop.h"
  43 #include "video/screen.h"
  44 #include "app/setup.h"
  45 #include "high_scores.h"
  46 #include "gui/menu.h"
  47 #include "badguy.h"
  48 #include "sector.h"
  49 #include "special.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
  66 GameSession* GameSession::current_ = 0;
  67
  68 bool compare_last(std::string& haystack, std::string needle)
  69 {
  70 int haystack_size = haystack.size();
  71 int needle_size = needle.size();
  72
  73 if(haystack_size < needle_size)
  74   return false;
  75
  76 if(haystack.compare(haystack_size-needle_size, needle_size, needle) == 0)
  77   return true;
  78 return false;
  79 }
  80
  81 GameSession::GameSession(const std::string& levelname_, int mode, bool flip_level_, Statistics* statistics)
  82   : level(0), currentsector(0), st_gl_mode(mode),
  83     end_sequence(NO_ENDSEQUENCE), levelname(levelname_), flip_level(flip_level_),
  84     best_level_statistics(statistics)
  85 {
  86   current_ = this;
  87
  88   global_frame_counter = 0;
  89   game_pause = false;
  90   fps_fps = 0;
  91
  92   fps_timer.init(true);
  93   frame_timer.init(true);
  94   random_timer.init(true);
  95   frame_rate.set_fps(100);
  96
  97   context = new DrawingContext();
  98
  99   if(flip_levels_mode)
 100     flip_level = true;
 101
 102   last_swap_point = Vector(-1, -1);
 103   last_swap_stats.reset();
 104
 105   restart_level();
 106 }
 107
 108 void
 109 GameSession::restart_level()
 110 {
 111   game_pause   = false;
 112   exit_status  = ES_NONE;
 113   end_sequence = NO_ENDSEQUENCE;
 114
 115   fps_timer.init(true);
 116   frame_timer.init(true);
 117   random_timer.init(true);
 118
 119   last_keys.clear();
 120
 121   Vector tux_pos = Vector(-1,-1);
 122   if (currentsector)
 123     { // Tux has lost a life, so we try to respawn him at the nearest reset point
 124       tux_pos = currentsector->player->base;
 125     }
 126
 127   delete level;
 128   currentsector = 0;
 129
 130   level = new Level;
 131   level->load(levelname);
 132   if(flip_level)
 133     level->do_vertical_flip();
 134
 135   global_stats.reset();
 136   global_stats.set_total_points(COINS_COLLECTED_STAT, level->get_total_coins());
 137   global_stats.set_total_points(BADGUYS_KILLED_STAT, level->get_total_badguys());
 138   global_stats.set_total_points(TIME_NEEDED_STAT, level->time_left);
 139
 140   currentsector = level->get_sector("main");
 141   if(!currentsector)
 142     Termination::abort("Level has no main sector.", "");
 143   currentsector->activate("main");
 144
 145   // Set Tux to the nearest reset point
 146   if(tux_pos.x != -1)
 147     {
 148     tux_pos = currentsector->get_best_spawn_point(tux_pos);
 149
 150     if(last_swap_point.x > tux_pos.x)
 151       tux_pos = last_swap_point;
 152     else  // new swap point
 153       {
 154       last_swap_point = tux_pos;
 155
 156       last_swap_stats += global_stats;
 157       }
 158
 159     currentsector->player->base.x = tux_pos.x;
 160     currentsector->player->base.y = tux_pos.y;
 161
 162     // has to reset camera on swapping
 163     currentsector->camera->reset(Vector(currentsector->player->base.x,
 164                                         currentsector->player->base.y));
 165     }
 166
 167   if (st_gl_mode != ST_GL_DEMO_GAME)
 168     {
 169       if(st_gl_mode == ST_GL_PLAY || st_gl_mode == ST_GL_LOAD_LEVEL_FILE)
 170         levelintro();
 171     }
 172
 173   time_left.init(true);
 174   start_timers();
 175   currentsector->play_music(LEVEL_MUSIC);
 176 }
 177
 178 GameSession::~GameSession()
 179 {
 180   delete level;
 181   delete context;
 182 }
 183
 184 void
 185 GameSession::levelintro(void)
 186 {
 187   SoundManager::get()->halt_music();
 188
 189   char str[60];
 190
 191   DrawingContext context;
 192   currentsector->background->draw(context);
 193
 194 //  context.draw_text(gold_text, level->get_name(), Vector(screen->w/2, 160),
 195 //      CENTER_ALLIGN, LAYER_FOREGROUND1);
 196   context.draw_center_text(gold_text, level->get_name(), Vector(0, 160),
 197       LAYER_FOREGROUND1);
 198
 199   sprintf(str, "TUX x %d", player_status.lives);
 200   context.draw_text(white_text, str, Vector(screen->w/2, 210),
 201       CENTER_ALLIGN, LAYER_FOREGROUND1);
 202
 203   if(level->get_author().size())
 204     context.draw_text(white_small_text,
 205       std::string(_("by ")) + level->get_author(),
 206       Vector(screen->w/2, 350), CENTER_ALLIGN, LAYER_FOREGROUND1);
 207
 208
 209   if(flip_level)
 210     context.draw_text(white_text,
 211       _("Level Vertically Flipped!"),
 212       Vector(screen->w/2, 310), CENTER_ALLIGN, LAYER_FOREGROUND1);
 213
 214   if(best_level_statistics != NULL)
 215     best_level_statistics->draw_message_info(context, _("Best Level Statistics"));
 216
 217   context.do_drawing();
 218
 219   SDL_Event event;
 220   wait_for_event(event,1000,3000,true);
 221 }
 222
 223 /* Reset Timers */
 224 void
 225 GameSession::start_timers()
 226 {
 227   time_left.start(level->time_left*1000);
 228   Ticks::pause_init();
 229   frame_rate.start();
 230 }
 231
 232 void
 233 GameSession::on_escape_press()
 234 {
 235   if(currentsector->player->dying || end_sequence != NO_ENDSEQUENCE)
 236     return;   // don't let the player open the menu, when he is dying
 237
 238   if(game_pause)
 239     return;
 240
 241   if(st_gl_mode == ST_GL_TEST)
 242     {
 243       exit_status = ES_LEVEL_ABORT;
 244     }
 245   else if (!Menu::current())
 246     {
 247       /* Tell Tux that the keys are all down, otherwise
 248         it could have nasty bugs, like going allways to the right
 249         or whatever that key does */
 250       Player& tux = *(currentsector->player);
 251       tux.key_event((SDLKey)keymap.up, UP);
 252       tux.key_event((SDLKey)keymap.down, UP);
 253       tux.key_event((SDLKey)keymap.left, UP);
 254       tux.key_event((SDLKey)keymap.right, UP);
 255       tux.key_event((SDLKey)keymap.jump, UP);
 256       tux.key_event((SDLKey)keymap.power, UP);
 257
 258       Menu::set_current(game_menu);
 259       Ticks::pause_start();
 260     }
 261 }
 262
 263 void
 264 GameSession::process_events()
 265 {
 266   if (end_sequence != NO_ENDSEQUENCE)
 267     {
 268       Player& tux = *currentsector->player;
 269
 270       tux.input.fire  = UP;
 271       tux.input.left  = UP;
 272       tux.input.right = DOWN;
 273       tux.input.down  = UP;
 274
 275       if (int(last_x_pos) == int(tux.base.x))
 276         tux.input.up    = DOWN;
 277       else
 278         tux.input.up    = UP;
 279
 280       last_x_pos = tux.base.x;
 281
 282       SDL_Event event;
 283       while (SDL_PollEvent(&event))
 284         {
 285           /* Check for menu-events, if the menu is shown */
 286           if (Menu::current())
 287             {
 288               Menu::current()->event(event);
 289               if(!Menu::current())
 290               Ticks::pause_stop();
 291             }
 292
 293           switch(event.type)
 294             {
 295             case SDL_QUIT:        /* Quit event - quit: */
 296               Termination::abort("Received window close", "");
 297               break;
 298
 299             case SDL_KEYDOWN:     /* A keypress! */
 300               {
 301                 SDLKey key = event.key.keysym.sym;
 302
 303                 switch(key)
 304                   {
 305                   case SDLK_ESCAPE:    /* Escape: Open/Close the menu: */
 306                     on_escape_press();
 307                     break;
 308                   default:
 309                     break;
 310                   }
 311               }
 312
 313             case SDL_JOYBUTTONDOWN:
 314               if (event.jbutton.button == joystick_keymap.start_button)
 315                 on_escape_press();
 316               break;
 317             }
 318         }
 319     }
 320   else // normal mode
 321     {
 322       if(!Menu::current() && !game_pause)
 323         Ticks::pause_stop();
 324
 325       SDL_Event event;
 326       while (SDL_PollEvent(&event))
 327         {
 328           /* Check for menu-events, if the menu is shown */
 329           if (Menu::current())
 330             {
 331               Menu::current()->event(event);
 332               if(!Menu::current())
 333                 Ticks::pause_stop();
 334             }
 335           else
 336             {
 337               Player& tux = *currentsector->player;
 338
 339               switch(event.type)
 340                 {
 341                 case SDL_QUIT:        /* Quit event - quit: */
 342                   Termination::abort("Received window close", "");
 343                   break;
 344
 345                 case SDL_KEYDOWN:     /* A keypress! */
 346                   {
 347                     SDLKey key = event.key.keysym.sym;
 348
 349                     if(tux.key_event(key,DOWN))
 350                       break;
 351
 352                     switch(key)
 353                       {
 354                       case SDLK_ESCAPE:    /* Escape: Open/Close the menu: */
 355                         on_escape_press();
 356                         break;
 357                       default:
 358                         break;
 359                       }
 360                   }
 361                   break;
 362                 case SDL_KEYUP:      /* A keyrelease! */
 363                   {
 364                     SDLKey key = event.key.keysym.sym;
 365
 366                     if(tux.key_event(key, UP))
 367                       break;
 368
 369                     switch(key)
 370                       {
 371                       case SDLK_a:
 372                         if(debug_mode)
 373                         {
 374                           char buf[160];
 375                           snprintf(buf, sizeof(buf), "P: %4.1f,%4.1f",
 376                               tux.base.x, tux.base.y);
 377                           context->draw_text(white_text, buf,
 378                               Vector(0, screen->h - white_text->get_height()),
 379                               LEFT_ALLIGN, LAYER_FOREGROUND1);
 380                           context->do_drawing();
 381                           SDL_Delay(1000);
 382                         }
 383                         break;
 384                       case SDLK_p:
 385                         if(!Menu::current())
 386                           {
 387                           // "lifeup" cheat activates pause cause of the 'p'
 388                           // so work around to ignore it
 389                             if(compare_last(last_keys, "lifeu"))
 390                               break;
 391
 392                             if(game_pause)
 393                               {
 394                                 game_pause = false;
 395                                 Ticks::pause_stop();
 396                               }
 397                             else
 398                               {
 399                                 game_pause = true;
 400                                 Ticks::pause_start();
 401                               }
 402                           }
 403                         break;
 404                       default:
 405                         break;
 406                       }
 407                   }
 408
 409                         /* Check if chacrater is ASCII */
 410                         char ch[2];
 411                         if((event.key.keysym.unicode & 0xFF80) == 0)
 412                           {
 413                           ch[0] = event.key.keysym.unicode & 0x7F;
 414                           ch[1] = '\0';
 415                           }
 416                         last_keys.append(ch);  // add to cheat keys
 417
 418                         // Cheating words (the goal of this is really for debugging,
 419                         // but could be used for some cheating, nothing wrong with that)
 420                         if(compare_last(last_keys, "grow"))
 421                           {
 422                           tux.grow(false);
 423                           last_keys.clear();
 424                           }
 425                         if(compare_last(last_keys, "fire"))
 426                           {
 427                           tux.grow(false);
 428                           tux.got_power = tux.FIRE_POWER;
 429                           last_keys.clear();
 430                           }
 431                         if(compare_last(last_keys, "ice"))
 432                           {
 433                           tux.grow(false);
 434                           tux.got_power = tux.ICE_POWER;
 435                           last_keys.clear();
 436                           }
 437                         if(compare_last(last_keys, "lifeup"))
 438                           {
 439                           player_status.lives++;
 440                           last_keys.clear();
 441                           }
 442                         if(compare_last(last_keys, "lifedown"))
 443                           {
 444                           player_status.lives--;
 445                           last_keys.clear();
 446                           }
 447                         if(compare_last(last_keys, "grease"))
 448                           {
 449                           tux.physic.set_velocity_x(tux.physic.get_velocity_x()*3);
 450                           last_keys.clear();
 451                           }
 452                         if(compare_last(last_keys, "invincible"))
 453                           {    // be invincle for the rest of the level
 454                           tux.invincible_timer.start(time_left.get_left());
 455                           last_keys.clear();
 456                           }
 457                         if(compare_last(last_keys, "shrink"))
 458                           {    // remove powerups
 459                           tux.kill(tux.SHRINK);
 460                           last_keys.clear();
 461                           }
 462                         if(compare_last(last_keys, "kill"))
 463                           {    // kill Tux, but without losing a life
 464                           player_status.lives++;
 465                           tux.kill(tux.KILL);
 466                           last_keys.clear();
 467                           }
 468                         if(compare_last(last_keys, "hover"))
 469                           {    // toggle hover ability on/off
 470                           tux.enable_hover = !tux.enable_hover;
 471                           last_keys.clear();
 472                           }
 473                         if(compare_last(last_keys, "gotoend"))
 474                           {    // goes to the end of the level
 475                           tux.base.x = (currentsector->solids->get_width()*32) - (screen->w*2);
 476                           tux.base.y = 0;
 477                           currentsector->camera->reset(Vector(tux.base.x, tux.base.y));
 478                           last_keys.clear();
 479                           }
 480                         // temporary to help player's choosing a flapping
 481                         if(compare_last(last_keys, "marek"))
 482                           {
 483                           tux.flapping_mode = Player::MAREK_FLAP;
 484                           last_keys.clear();
 485                           }
 486                         if(compare_last(last_keys, "ricardo"))
 487                           {
 488                           tux.flapping_mode = Player::RICARDO_FLAP;
 489                           last_keys.clear();
 490                           }
 491                         if(compare_last(last_keys, "ryan"))
 492                           {
 493                           tux.flapping_mode = Player::RYAN_FLAP;
 494                           last_keys.clear();
 495                           }
 496                   break;
 497
 498                 case SDL_JOYAXISMOTION:
 499                   if (event.jaxis.axis == joystick_keymap.x_axis)
 500                     {
 501                       if (event.jaxis.value < -joystick_keymap.dead_zone)
 502                         {
 503                           tux.input.left  = DOWN;
 504                           tux.input.right = UP;
 505                         }
 506                       else if (event.jaxis.value > joystick_keymap.dead_zone)
 507                         {
 508                           tux.input.left  = UP;
 509                           tux.input.right = DOWN;
 510                         }
 511                       else
 512                         {
 513                           tux.input.left  = DOWN;
 514                           tux.input.right = DOWN;
 515                         }
 516                     }
 517                   else if (event.jaxis.axis == joystick_keymap.y_axis)
 518                     {
 519                       if (event.jaxis.value > joystick_keymap.dead_zone)
 520                         {
 521                         tux.input.up = DOWN;
 522                         tux.input.down = UP;
 523                         }
 524                       else if (event.jaxis.value < -joystick_keymap.dead_zone)
 525                         {
 526                         tux.input.up = UP;
 527                         tux.input.down = DOWN;
 528                         }
 529                       else
 530                         {
 531                         tux.input.up = DOWN;
 532                         tux.input.down = DOWN;
 533                         }
 534                     }
 535                   break;
 536
 537                 case SDL_JOYHATMOTION:
 538                   if(event.jhat.value & SDL_HAT_UP) {
 539                     tux.input.up = DOWN;
 540                     tux.input.down = UP;
 541                   } else if(event.jhat.value & SDL_HAT_DOWN) {
 542                     tux.input.up = UP;
 543                     tux.input.down = DOWN;
 544                   } else if(event.jhat.value & SDL_HAT_LEFT) {
 545                     tux.input.left = DOWN;
 546                     tux.input.right = UP;
 547                   } else if(event.jhat.value & SDL_HAT_RIGHT) {
 548                     tux.input.left = UP;
 549                     tux.input.right = DOWN;
 550                   } else if(event.jhat.value == SDL_HAT_CENTERED) {
 551                     tux.input.left = UP;
 552                     tux.input.right = UP;
 553                     tux.input.up = UP;
 554                     tux.input.down = UP;
 555                   }
 556                   break;
 557
 558                 case SDL_JOYBUTTONDOWN:
 559                   if (event.jbutton.button == joystick_keymap.a_button)
 560                     tux.input.jump = DOWN;
 561                   else if (event.jbutton.button == joystick_keymap.b_button)
 562                     tux.input.fire = DOWN;
 563                   else if (event.jbutton.button == joystick_keymap.start_button)
 564                     on_escape_press();
 565                   break;
 566                 case SDL_JOYBUTTONUP:
 567                   if (event.jbutton.button == joystick_keymap.a_button)
 568                     tux.input.jump = UP;
 569                   else if (event.jbutton.button == joystick_keymap.b_button)
 570                     tux.input.fire = UP;
 571                   break;
 572
 573                 default:
 574                   break;
 575                 }  /* switch */
 576             }
 577         } /* while */
 578     }
 579 }
 580
 581 void
 582 GameSession::check_end_conditions()
 583 {
 584   Player* tux = currentsector->player;
 585
 586   /* End of level? */
 587   Tile* endtile = collision_goal(tux->base);
 588
 589   if(end_sequence && !endsequence_timer.check())
 590     {
 591       exit_status = ES_LEVEL_FINISHED;
 592       global_stats += last_swap_stats;  // add swap points stats
 593       return;
 594     }
 595   else if(end_sequence == ENDSEQUENCE_RUNNING && endtile && endtile->data >= 1)
 596     {
 597       end_sequence = ENDSEQUENCE_WAITING;
 598     }
 599   else if(!end_sequence && endtile && endtile->data == 0)
 600     {
 601       end_sequence = ENDSEQUENCE_RUNNING;
 602       endsequence_timer.start(7000); // 5 seconds until we finish the map
 603       last_x_pos = -1;
 604       SoundManager::get()->play_music(level_end_song, 0);
 605       tux->invincible_timer.start(7000); //FIXME: Implement a winning timer for the end sequence (with special winning animation etc.)
 606
 607       // add left time to stats
 608       global_stats.set_points(TIME_NEEDED_STAT, time_left.get_gone() / 1000);
 609
 610       random_timer.start(200);  // start 1st firework
 611     }
 612   else if (!end_sequence && tux->is_dead())
 613     {
 614       player_status.bonus = PlayerStatus::NO_BONUS;
 615
 616       if (player_status.lives < 0)
 617         { // No more lives!?
 618           exit_status = ES_GAME_OVER;
 619         }
 620       else
 621         { // Still has lives, so reset Tux to the levelstart
 622           restart_level();
 623         }
 624
 625       return;
 626     }
 627 }
 628
 629 void
 630 GameSession::action(double frame_ratio)
 631 {
 632   if (exit_status == ES_NONE && !currentsector->player->growing_timer.check())
 633     {
 634       // Update Tux and the World
 635       currentsector->action(frame_ratio);
 636     }
 637
 638   // respawning in new sector?
 639   if(newsector != "" && newspawnpoint != "") {
 640     Sector* sector = level->get_sector(newsector);
 641     currentsector = sector;
 642     currentsector->activate(newspawnpoint);
 643     currentsector->play_music(LEVEL_MUSIC);
 644     newsector = newspawnpoint = "";
 645   }
 646
 647   // on end sequence make a few fireworks
 648   if(end_sequence == ENDSEQUENCE_RUNNING && !random_timer.check() &&
 649      currentsector->end_sequence_animation() == FIREWORKS_ENDSEQ_ANIM)
 650     {
 651     Vector epicenter = currentsector->camera->get_translation();
 652     epicenter.x += screen->w * ((float)rand() / RAND_MAX);
 653     epicenter.y += (screen->h/2) * ((float)rand() / RAND_MAX);
 654
 655     int red = rand() % 255;  // calculate firework color
 656     int green = rand() % red;
 657     currentsector->add_particles(epicenter, 0, 360, Vector(1.4,1.4),
 658                    Vector(0,0), 45, Color(red,green,0), 3, 1300);
 659
 660     SoundManager::get()->play_sound(IDToSound(SND_FIREWORKS));
 661     random_timer.start(rand() % 400 + 600);  // next firework
 662     }
 663 }
 664
 665 void
 666 GameSession::draw()
 667 {
 668   currentsector->draw(*context);
 669   drawstatus(*context);
 670
 671   if(game_pause)
 672     {
 673       int x = screen->h / 20;
 674       for(int i = 0; i < x; ++i)
 675         {
 676           context->draw_filled_rect(
 677               Vector(i % 2 ? (pause_menu_frame * i)%screen->w :
 678                 -((pause_menu_frame * i)%screen->w)
 679                 ,(i*20+pause_menu_frame)%screen->h),
 680               Vector(screen->w,10),
 681               Color(20,20,20, rand() % 20 + 1), LAYER_FOREGROUND1+1);
 682         }
 683       context->draw_filled_rect(
 684           Vector(0,0), Vector(screen->w, screen->h),
 685           Color(rand() % 50, rand() % 50, rand() % 50, 128), LAYER_FOREGROUND1);
 686       context->draw_text(blue_text, _("PAUSE - Press 'P' To Play"),
 687           Vector(screen->w/2, 230), CENTER_ALLIGN, LAYER_FOREGROUND1+2);
 688
 689       char str1[60];
 690       char str2[124];
 691       sprintf(str1, _("Playing: "));
 692       sprintf(str2, level->name.c_str());
 693
 694       context->draw_text(blue_text, str1,
 695           Vector((screen->w - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2, 340),
 696           LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 697       context->draw_text(white_text, str2,
 698           Vector(((screen->w - (blue_text->get_text_width(str1) + white_text->get_text_width(str2)))/2)+blue_text->get_text_width(str1), 340),
 699           LEFT_ALLIGN, LAYER_FOREGROUND1+2);
 700     }
 701
 702   if(Menu::current())
 703     {
 704       Menu::current()->draw(*context);
 705       mouse_cursor->draw(*context);
 706     }
 707
 708   context->do_drawing();
 709 }
 710
 711 void
 712 GameSession::process_menu()
 713 {
 714   Menu* menu = Menu::current();
 715   if(menu)
 716     {
 717       menu->action();
 718
 719       if(menu == game_menu)
 720         {
 721           switch (game_menu->check())
 722             {
 723             case MNID_CONTINUE:
 724               Ticks::pause_stop();
 725               break;
 726             case MNID_ABORTLEVEL:
 727               Ticks::pause_stop();
 728               exit_status = ES_LEVEL_ABORT;
 729               break;
 730             }
 731         }
 732       else if(menu == options_menu)
 733         {
 734           process_options_menu();
 735         }
 736       else if(menu == load_game_menu )
 737         {
 738           process_load_game_menu();
 739         }
 740     }
 741 }
 742
 743 GameSession::ExitStatus
 744 GameSession::run()
 745 {
 746   Menu::set_current(0);
 747   current_ = this;
 748
 749   int fps_cnt = 0;
 750
 751   frame_rate.start();
 752
 753   // Eat unneeded events
 754   SDL_Event event;
 755   while (SDL_PollEvent(&event)) {}
 756
 757   draw();
 758
 759   while (exit_status == ES_NONE)
 760     {
 761       /* Calculate the movement-factor */
 762       double frame_ratio = frame_rate.get();
 763
 764       if(!frame_timer.check())
 765         {
 766           frame_timer.start(25);
 767           ++global_frame_counter;
 768         }
 769
 770       /* Handle events: */
 771       currentsector->player->input.old_fire
 772         = currentsector->player->input.fire;
 773
 774       process_events();
 775       process_menu();
 776
 777       // Update the world state and all objects in the world
 778       // Do that with a constante time-delta so that the game will run
 779       // determistic and not different on different machines
 780       if(!game_pause && !Menu::current())
 781         {
 782           // Update the world
 783           check_end_conditions();
 784           if (end_sequence == ENDSEQUENCE_RUNNING)
 785              action(frame_ratio/2);
 786           else if(end_sequence == NO_ENDSEQUENCE)
 787              action(frame_ratio);
 788         }
 789       else
 790         {
 791           ++pause_menu_frame;
 792           SDL_Delay(50);
 793         }
 794
 795       draw();
 796
 797       /* Time stops in pause mode */
 798       if(game_pause || Menu::current())
 799         {
 800           continue;
 801         }
 802
 803       frame_rate.update();
 804
 805       /* Handle time: */
 806       if (!time_left.check() && currentsector->player->dying == DYING_NOT
 807               && !end_sequence)
 808         currentsector->player->kill(Player::KILL);
 809
 810       /* Handle music: */
 811       if(currentsector->player->invincible_timer.check() && !end_sequence)
 812         {
 813           currentsector->play_music(HERRING_MUSIC);
 814         }
 815       /* are we low on time ? */
 816       else if (time_left.get_left() < TIME_WARNING && !end_sequence)
 817         {
 818           currentsector->play_music(HURRYUP_MUSIC);
 819         }
 820       /* or just normal music? */
 821       else if(currentsector->get_music_type() != LEVEL_MUSIC && !end_sequence)
 822         {
 823           currentsector->play_music(LEVEL_MUSIC);
 824         }
 825
 826       /* Calculate frames per second */
 827       if(show_fps)
 828         {
 829           ++fps_cnt;
 830           fps_fps = (1000.0 / (float)fps_timer.get_gone()) * (float)fps_cnt;
 831
 832           if(!fps_timer.check())
 833             {
 834               fps_timer.start(1000);
 835               fps_cnt = 0;
 836             }
 837         }
 838     }
 839
 840   return exit_status;
 841 }
 842
 843 void
 844 GameSession::respawn(const std::string& sector, const std::string& spawnpoint)
 845 {
 846   newsector = sector;
 847   newspawnpoint = spawnpoint;
 848 }
 849
 850 /* Bounce a brick: */
 851 void bumpbrick(float x, float y)
 852 {
 853   Sector::current()->add_bouncy_brick(Vector(((int)(x + 1) / 32) * 32,
 854                          (int)(y / 32) * 32));
 855
 856   SoundManager::get()->play_sound(IDToSound(SND_BRICK), Vector(x, y), Sector::current()->player->get_pos());
 857 }
 858
 859 /* (Status): */
 860 void
 861 GameSession::drawstatus(DrawingContext& context)
 862 {
 863   char str[60];
 864
 865   snprintf(str, 60, " %d", global_stats.get_points(SCORE_STAT));
 866   context.draw_text(white_text, _("SCORE"), Vector(0, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 867   context.draw_text(gold_text, str, Vector(96, 0), LEFT_ALLIGN, LAYER_FOREGROUND1);
 868
 869   if(st_gl_mode == ST_GL_TEST)
 870     {
 871       context.draw_text(white_text, _("Press ESC To Return"), Vector(0,20),
 872           LEFT_ALLIGN, LAYER_FOREGROUND1);
 873     }
 874
 875   if(!time_left.check()) {
 876     context.draw_text(white_text, _("TIME's UP"), Vector(screen->w/2, 0),
 877         CENTER_ALLIGN, LAYER_FOREGROUND1);
 878   } else if (time_left.get_left() > TIME_WARNING || (global_frame_counter % 10) < 5) {
 879     sprintf(str, " %d", time_left.get_left() / 1000 );
 880     context.draw_text(white_text, _("TIME"),
 881         Vector(screen->w/2, 0), CENTER_ALLIGN, LAYER_FOREGROUND1);
 882     context.draw_text(gold_text, str,
 883         Vector(screen->w/2 + 4*16, 0), CENTER_ALLIGN, LAYER_FOREGROUND1);
 884   }
 885
 886   sprintf(str, " %d", player_status.distros);
 887   context.draw_text(white_text, _("COINS"),
 888       Vector(screen->w - white_text->get_text_width(_("COINS"))-white_text->get_text_width("   99"), 0),
 889         LEFT_ALLIGN, LAYER_FOREGROUND1);
 890   context.draw_text(gold_text, str,
 891       Vector(screen->w - gold_text->get_text_width(" 99"), 0),LEFT_ALLIGN, LAYER_FOREGROUND1);
 892
 893   if (player_status.lives >= 5)
 894     {
 895       sprintf(str, "%dx", player_status.lives);
 896       float x = screen->w - gold_text->get_text_width(str) - tux_life->w;
 897       context.draw_text(gold_text, str, Vector(x, 20), LEFT_ALLIGN, LAYER_FOREGROUND1);
 898       context.draw_surface(tux_life, Vector(screen->w - 16, 20),
 899           LAYER_FOREGROUND1);
 900     }
 901   else
 902     {
 903       for(int i= 0; i < player_status.lives; ++i)
 904         context.draw_surface(tux_life,
 905             Vector(screen->w - tux_life->w*4 +(tux_life->w*i), 20),
 906             LAYER_FOREGROUND1);
 907     }
 908
 909   context.draw_text(white_text, _("LIVES"),
 910       Vector(screen->w - white_text->get_text_width(_("LIVES")) - white_text->get_text_width("   99"), 20),
 911       LEFT_ALLIGN, LAYER_FOREGROUND1);
 912
 913   if(show_fps)
 914     {
 915       sprintf(str, "%2.1f", fps_fps);
 916       context.draw_text(white_text, "FPS",
 917           Vector(screen->w - white_text->get_text_width("FPS     "), 40),
 918           LEFT_ALLIGN, LAYER_FOREGROUND1);
 919       context.draw_text(gold_text, str,
 920           Vector(screen->w-4*16, 40), LEFT_ALLIGN, LAYER_FOREGROUND1);
 921     }
 922 }
 923
 924 void
 925 GameSession::drawresultscreen(void)
 926 {
 927   char str[80];
 928
 929   DrawingContext context;
 930   currentsector->background->draw(context);
 931
 932   context.draw_text(blue_text, _("Result:"), Vector(screen->w/2, 200),
 933       CENTER_ALLIGN, LAYER_FOREGROUND1);
 934
 935   sprintf(str, _("SCORE: %d"), global_stats.get_points(SCORE_STAT));
 936   context.draw_text(gold_text, str, Vector(screen->w/2, 224), CENTER_ALLIGN, LAYER_FOREGROUND1);
 937
 938   sprintf(str, _("COINS: %d"), player_status.distros);
 939   context.draw_text(gold_text, str, Vector(screen->w/2, 256), CENTER_ALLIGN, LAYER_FOREGROUND1);
 940
 941   context.do_drawing();
 942
 943   SDL_Event event;
 944   wait_for_event(event,2000,5000,true);
 945 }
 946
 947 std::string slotinfo(int slot)
 948 {
 949   std::string tmp;
 950   std::string slotfile;
 951   std::string title;
 952   std::stringstream stream;
 953   stream << slot;
 954   slotfile = st_save_dir + "/slot" + stream.str() + ".stsg";
 955
 956   lisp_object_t* savegame = lisp_read_from_file(slotfile.c_str());
 957   if (savegame)
 958     {
 959       LispReader reader(lisp_cdr(savegame));
 960       reader.read_string("title", title);
 961       lisp_free(savegame);
 962     }
 963
 964   if (access(slotfile.c_str(), F_OK) == 0)
 965     {
 966       if (!title.empty())
 967         tmp = "Slot " + stream.str() + " - " + title;
 968       else
 969         tmp = "Slot " + stream.str() + " - Savegame";
 970     }
 971   else
 972     tmp = std::string(_("Slot")) + " " + stream.str() + " - " + std::string(_("Free"));
 973
 974   return tmp;
 975 }
 976
 977 bool process_load_game_menu()
 978 {
 979   int slot = load_game_menu->check();
 980
 981   if(slot != -1 && load_game_menu->get_item_by_id(slot).kind == MN_ACTION)
 982     {
 983       std::stringstream stream;
 984       stream << slot;
 985       std::string slotfile = st_save_dir + "/slot" + stream.str() + ".stsg";
 986
 987       if (access(slotfile.c_str(), F_OK) != 0)
 988         {
 989           shrink_fade(Vector(screen->w/2,screen->h/2), 600);
 990           draw_intro();
 991         }
 992
 993       fadeout(256);
 994       DrawingContext context;
 995       context.draw_text(white_text, "Loading...",
 996                         Vector(screen->w/2, screen->h/2), CENTER_ALLIGN, LAYER_FOREGROUND1);
 997       context.do_drawing();
 998
 999       WorldMapNS::WorldMap worldmap;
1000
1001       worldmap.set_map_filename("icyisland.stwm");
1002       // Load the game or at least set the savegame_file variable
1003       worldmap.loadgame(slotfile);
1004
1005       worldmap.display();
1006
1007       Menu::set_current(main_menu);
1008
1009       Ticks::pause_stop();
1010       return true;
1011     }
1012   else
1013     {
1014       return false;
1015     }
1016 }