src/player.cpp

   1 //
   2 // C Implementation: player/tux
   3 //
   4 // Description:
   5 //
   6 //
   7 // Author: Tobias Glaesser <tobi.web@gmx.de> & Bill Kendrick, (C) 2004
   8 //
   9 // Copyright: See COPYING file that comes with this distribution
  10 //
  11 //
  12 #include <math.h>
  13
  14 #include "gameloop.h"
  15 #include "globals.h"
  16 #include "player.h"
  17 #include "defines.h"
  18 #include "scene.h"
  19 #include "tile.h"
  20 #include "sprite.h"
  21 #include "screen.h"
  22
  23 Surface* tux_life;
  24 std::vector<Surface*> tux_right;
  25 std::vector<Surface*> tux_left;
  26 Surface* smalltux_jump_left;
  27 Surface* smalltux_jump_right;
  28 Surface* smalltux_stand_left;
  29 Surface* smalltux_stand_right;
  30
  31 Sprite* bigtux_right;
  32 Sprite* bigtux_left;
  33 Sprite* bigtux_right_jump;
  34 Sprite* bigtux_left_jump;
  35 Surface* ducktux_right;
  36 Surface* ducktux_left;
  37 Surface* skidtux_right;
  38 Surface* skidtux_left;
  39 Surface* firetux_right[3];
  40 Surface* firetux_left[3];
  41 Surface* bigfiretux_right[3];
  42 Surface* bigfiretux_left[3];
  43 Surface* bigfiretux_right_jump;
  44 Surface* bigfiretux_left_jump;
  45 Surface* duckfiretux_right;
  46 Surface* duckfiretux_left;
  47 Surface* skidfiretux_right;
  48 Surface* skidfiretux_left;
  49 Surface* cape_right[2];
  50 Surface* cape_left[2];
  51 Surface* bigcape_right[2];
  52 Surface* bigcape_left[2];
  53
  54 void player_input_init(player_input_type* pplayer_input)
  55 {
  56   pplayer_input->down = UP;
  57   pplayer_input->fire = UP;
  58   pplayer_input->left = UP;
  59   pplayer_input->old_fire = UP;
  60   pplayer_input->right = UP;
  61   pplayer_input->up = UP;
  62 }
  63
  64 void
  65 Player::init()
  66 {
  67   base.width = 32;
  68   base.height = 32;
  69
  70   size = SMALL;
  71   got_coffee = false;
  72
  73   // FIXME: Make the start position configurable via the levelfile
  74   base.x = 100;
  75   base.y = 170;
  76   base.xm = 0;
  77   base.ym = 0;
  78   previous_base = old_base = base;
  79   dir = RIGHT;
  80   duck = false;
  81
  82   dying   = DYING_NOT;
  83   jumping = false;
  84
  85   frame_main = 0;
  86   frame_ = 0;
  87
  88   player_input_init(&input);
  89
  90   keymap.jump  = SDLK_UP;
  91   keymap.duck  = SDLK_DOWN;
  92   keymap.left  = SDLK_LEFT;
  93   keymap.right = SDLK_RIGHT;
  94   keymap.fire  = SDLK_LCTRL;
  95
  96   invincible_timer.init(true);
  97   skidding_timer.init(true);
  98   safe_timer.init(true);
  99   frame_timer.init(true);
 100
 101   physic.reset();
 102 }
 103
 104 int
 105 Player::key_event(SDLKey key, int state)
 106 {
 107   if(key == keymap.right)
 108     {
 109       input.right = state;
 110       return true;
 111     }
 112   else if(key == keymap.left)
 113     {
 114       input.left = state;
 115       return true;
 116     }
 117   else if(key == keymap.jump)
 118     {
 119       input.up = state;
 120       return true;
 121     }
 122   else if(key == keymap.duck)
 123     {
 124       input.down = state;
 125       return true;
 126     }
 127   else if(key == keymap.fire)
 128     {
 129       input.fire = state;
 130       return true;
 131     }
 132   else
 133     return false;
 134 }
 135
 136 void
 137 Player::level_begin()
 138 {
 139   base.x  = 100;
 140   base.y  = 170;
 141   base.xm = 0;
 142   base.ym = 0;
 143   previous_base = old_base = base;
 144   duck = false;
 145
 146   dying = DYING_NOT;
 147
 148   player_input_init(&input);
 149
 150   invincible_timer.init(true);
 151   skidding_timer.init(true);
 152   safe_timer.init(true);
 153   frame_timer.init(true);
 154
 155   physic.reset();
 156 }
 157
 158 void
 159 Player::action(double frame_ratio)
 160 {
 161   bool jumped_in_solid = false;
 162
 163   /* --- HANDLE TUX! --- */
 164
 165   if(dying == DYING_NOT)
 166     handle_input();
 167
 168   /* Move tux: */
 169   previous_base = base;
 170
 171   physic.apply(frame_ratio, base.x, base.y);
 172   if(dying == DYING_NOT) {
 173       collision_swept_object_map(&old_base, &base);
 174       // special exception for cases where we're stuck under tiles after
 175       // being ducked. In this case we drift out
 176       if(!duck && on_ground() && old_base.x == base.x && old_base.y == base.y
 177               && collision_object_map(&base)) {
 178           base.x += frame_ratio * WALK_SPEED * (dir ? 1 : -1);
 179           previous_base = old_base = base;
 180       }
 181       keep_in_bounds();
 182   }
 183
 184   if (dying == DYING_NOT)
 185     {
 186       /* Land: */
 187
 188
 189       if( !on_ground())
 190         {
 191           physic.enable_gravity(true);
 192           if(under_solid())
 193             {
 194               // fall down
 195               physic.set_velocity(physic.get_velocity_x(), 0);
 196               jumped_in_solid = true;
 197             }
 198         }
 199       else
 200         {
 201           /* Land: */
 202           if (physic.get_velocity_y() < 0)
 203             {
 204               base.y = (int)(((int)base.y / 32) * 32);
 205               physic.set_velocity(physic.get_velocity_x(), 0);
 206             }
 207
 208           physic.enable_gravity(false);
 209           /* Reset score multiplier (for multi-hits): */
 210           player_status.score_multiplier = 1;
 211         }
 212
 213       if(jumped_in_solid)
 214         {
 215           if (isbrick(base.x, base.y) ||
 216               isfullbox(base.x, base.y))
 217             {
 218               World::current()->trygrabdistro(base.x, base.y - 32,BOUNCE);
 219               World::current()->trybumpbadguy(base.x, base.y - 64);
 220
 221               World::current()->trybreakbrick(base.x, base.y, size == SMALL);
 222
 223               bumpbrick(base.x, base.y);
 224               World::current()->tryemptybox(base.x, base.y, RIGHT);
 225             }
 226
 227           if (isbrick(base.x+ 31, base.y) ||
 228               isfullbox(base.x+ 31, base.y))
 229             {
 230               World::current()->trygrabdistro(base.x+ 31, base.y - 32,BOUNCE);
 231               World::current()->trybumpbadguy(base.x+ 31, base.y - 64);
 232
 233               if(size == BIG)
 234                 World::current()->trybreakbrick(base.x+ 31, base.y, size == SMALL);
 235
 236               bumpbrick(base.x+ 31, base.y);
 237               World::current()->tryemptybox(base.x+ 31, base.y, LEFT);
 238             }
 239         }
 240
 241       grabdistros();
 242
 243       if (jumped_in_solid)
 244         {
 245           ++base.y;
 246           ++old_base.y;
 247           if(on_ground())
 248             {
 249               /* Make sure jumping is off. */
 250               jumping = false;
 251             }
 252         }
 253     }
 254
 255
 256   /* ---- DONE HANDLING TUX! --- */
 257
 258   /* Handle invincibility timer: */
 259   if (get_current_music() == HERRING_MUSIC && !invincible_timer.check())
 260     {
 261       /*
 262          no, we are no more invincible
 263          or we were not in invincible mode
 264          but are we in hurry ?
 265        */
 266
 267       // FIXME: Move this to gamesession
 268       if (GameSession::current()->time_left.get_left() < TIME_WARNING)
 269         {
 270           /* yes, we are in hurry
 271              stop the herring_song, prepare to play the correct
 272              fast level_song !
 273            */
 274           set_current_music(HURRYUP_MUSIC);
 275         }
 276       else
 277         {
 278           set_current_music(LEVEL_MUSIC);
 279         }
 280
 281       /* start playing it */
 282       play_current_music();
 283     }
 284
 285   // check some timers
 286   skidding_timer.check();
 287   invincible_timer.check();
 288   safe_timer.check();
 289 }
 290
 291 bool
 292 Player::on_ground()
 293 {
 294   return ( issolid(base.x + base.width / 2, base.y + base.height) ||
 295            issolid(base.x + 1, base.y + base.height) ||
 296            issolid(base.x + base.width - 1, base.y + base.height)  );
 297 }
 298
 299 bool
 300 Player::under_solid()
 301 {
 302   return ( issolid(base.x + base.width / 2, base.y) ||
 303            issolid(base.x + 1, base.y) ||
 304            issolid(base.x + base.width - 1, base.y)  );
 305 }
 306
 307 void
 308 Player::handle_horizontal_input()
 309 {
 310   float vx = physic.get_velocity_x();
 311   float vy = physic.get_velocity_y();
 312   float ax = physic.get_acceleration_x();
 313   float ay = physic.get_acceleration_y();
 314
 315   float dirsign = 0;
 316   if(!duck && input.left == DOWN && input.right == UP) {
 317       dir = LEFT;
 318       dirsign = -1;
 319   } else if(!duck && input.left == UP && input.right == DOWN) {
 320       dir = RIGHT;
 321       dirsign = 1;
 322   }
 323
 324   if (input.fire == UP) {
 325       ax = dirsign * WALK_ACCELERATION_X;
 326       // limit speed
 327       if(vx >= MAX_WALK_XM && dirsign > 0) {
 328         vx = MAX_WALK_XM;
 329         ax = 0;
 330       } else if(vx <= -MAX_WALK_XM && dirsign < 0) {
 331         vx = -MAX_WALK_XM;
 332         ax = 0;
 333       }
 334   } else {
 335       ax = dirsign * RUN_ACCELERATION_X;
 336       // limit speed
 337       if(vx >= MAX_RUN_XM && dirsign > 0) {
 338         vx = MAX_RUN_XM;
 339         ax = 0;
 340       } else if(vx <= -MAX_RUN_XM && dirsign < 0) {
 341         vx = -MAX_RUN_XM;
 342         ax = 0;
 343       }
 344   }
 345
 346   // we can reach WALK_SPEED without any acceleration
 347   if(dirsign != 0 && fabs(vx) < WALK_SPEED) {
 348     vx = dirsign * WALK_SPEED;
 349   }
 350
 351   // changing directions?
 352   if(on_ground() && ((vx < 0 && dirsign >0) || (vx>0 && dirsign<0))) {
 353       if(fabs(vx)>SKID_XM && !skidding_timer.check()) {
 354           skidding_timer.start(SKID_TIME);
 355           play_sound(sounds[SND_SKID], SOUND_CENTER_SPEAKER);
 356           ax *= 2.5;
 357       } else {
 358           ax *= 2;
 359       }
 360   }
 361
 362   // we get slower when not pressing any keys
 363   if(dirsign == 0) {
 364       if(fabs(vx) < WALK_SPEED) {
 365           vx = 0;
 366           ax = 0;
 367       } else if(vx < 0) {
 368           ax = WALK_ACCELERATION_X * 1.5;
 369       } else {
 370           ax = WALK_ACCELERATION_X * -1.5;
 371       }
 372   }
 373
 374   // if we're on ice slow down acceleration or deceleration
 375   if (isice(base.x, base.y + base.height))
 376   {
 377     /* the acceleration/deceleration rate on ice is inversely proportional to
 378      * the current velocity.
 379      */
 380
 381     // increasing 1 will increase acceleration/deceleration rate
 382     // decreasing 1 will decrease acceleration/deceleration rate
 383     //  must stay above zero, though
 384     if (ax != 0) ax *= 1 / fabs(vx);
 385   }
 386
 387   physic.set_velocity(vx, vy);
 388   physic.set_acceleration(ax, ay);
 389 }
 390
 391 void
 392 Player::handle_vertical_input()
 393 {
 394   if(input.up == DOWN)
 395     {
 396       if (on_ground() && !duck)
 397         {
 398           // jump
 399           physic.set_velocity(physic.get_velocity_x(), 5.5);
 400           --base.y;
 401           jumping = true;
 402           if (size == SMALL)
 403             play_sound(sounds[SND_JUMP], SOUND_CENTER_SPEAKER);
 404           else
 405             play_sound(sounds[SND_BIGJUMP], SOUND_CENTER_SPEAKER);
 406         }
 407     }
 408   else if(input.up == UP && jumping)
 409     {
 410       jumping = false;
 411       if(physic.get_velocity_y() > 0) {
 412         physic.set_velocity(physic.get_velocity_x(), 0);
 413       }
 414     }
 415 }
 416
 417 void
 418 Player::handle_input()
 419 {
 420   /* Handle horizontal movement: */
 421     handle_horizontal_input();
 422
 423   /* Jump/jumping? */
 424
 425   if ( input.up == DOWN || (input.up == UP && jumping))
 426     {
 427       handle_vertical_input();
 428     }
 429
 430   /* Shoot! */
 431
 432   if (input.fire == DOWN && input.old_fire == UP && got_coffee)
 433     {
 434       World::current()->add_bullet(base.x, base.y, physic.get_velocity_x(), dir);
 435     }
 436
 437   /* tux animations: */
 438   if(!frame_timer.check())
 439     {
 440       frame_timer.start(25);
 441       if (input.right == UP && input.left == UP)
 442         {
 443           frame_main = 1;
 444           frame_ = 1;
 445         }
 446       else
 447         {
 448           if ((input.fire == DOWN && (global_frame_counter % 2) == 0) ||
 449               (global_frame_counter % 4) == 0)
 450             frame_main = (frame_main + 1) % 4;
 451
 452           frame_ = frame_main;
 453
 454           if (frame_ == 3)
 455             frame_ = 1;
 456         }
 457     }
 458
 459   /* Duck! */
 460   if (input.down == DOWN && size == BIG && !duck)
 461     {
 462       duck = true;
 463       base.height = 32;
 464       base.y += 32;
 465       // changing base size confuses collision otherwise
 466       old_base = previous_base = base;
 467     }
 468   else if(input.down == UP && size == BIG && duck)
 469     {
 470       duck = false;
 471       base.y -= 32;
 472       base.height = 64;
 473       old_base = previous_base = base;
 474     }
 475 }
 476
 477 void
 478 Player::grabdistros()
 479 {
 480   /* Grab distros: */
 481   if (!dying)
 482     {
 483       World::current()->trygrabdistro(base.x, base.y, NO_BOUNCE);
 484       World::current()->trygrabdistro(base.x+ 31, base.y, NO_BOUNCE);
 485
 486       World::current()->trygrabdistro(base.x, base.y + base.height, NO_BOUNCE);
 487       World::current()->trygrabdistro(base.x+ 31, base.y + base.height, NO_BOUNCE);
 488
 489       if(size == BIG)
 490         {
 491           World::current()->trygrabdistro(base.x, base.y + base.height / 2, NO_BOUNCE);
 492           World::current()->trygrabdistro(base.x+ 31, base.y + base.height / 2, NO_BOUNCE);
 493         }
 494
 495     }
 496
 497   /* Enough distros for a One-up? */
 498   if (player_status.distros >= DISTROS_LIFEUP)
 499     {
 500       player_status.distros = player_status.distros - DISTROS_LIFEUP;
 501       if(player_status.lives < MAX_LIVES)
 502         ++player_status.lives;
 503       /*We want to hear the sound even, if MAX_LIVES is reached*/
 504       play_sound(sounds[SND_LIFEUP], SOUND_CENTER_SPEAKER);
 505     }
 506 }
 507
 508 void
 509 Player::draw()
 510 {
 511   if (!safe_timer.started() || (global_frame_counter % 2) == 0)
 512     {
 513       if (size == SMALL)
 514         {
 515           if (invincible_timer.started())
 516             {
 517               /* Draw cape: */
 518
 519               if (dir == RIGHT)
 520                 {
 521                  cape_right[global_frame_counter % 2]->draw(base.x- scroll_x, base.y);
 522                 }
 523               else
 524                 {
 525                   cape_left[global_frame_counter % 2]->draw(
 526                                base.x- scroll_x, base.y);
 527                 }
 528             }
 529
 530
 531           if (!got_coffee)
 532             {
 533               if (physic.get_velocity_y() != 0)
 534                 {
 535                   if (dir == RIGHT)
 536                     smalltux_jump_right->draw( base.x - scroll_x, base.y - 10);
 537                   else
 538                     smalltux_jump_left->draw( base.x - scroll_x, base.y - 10);
 539                 }
 540               else
 541                 {
 542                   if (fabsf(physic.get_velocity_x()) < 1.0f) // standing
 543                     {
 544                       if (dir == RIGHT)
 545                         smalltux_stand_right->draw( base.x - scroll_x, base.y - 9);
 546                       else
 547                         smalltux_stand_left->draw( base.x - scroll_x, base.y - 9);
 548                     }
 549                   else // moving
 550                     {
 551                       if (dir == RIGHT)
 552                         tux_right[(global_frame_counter/2) % tux_right.size()]->draw(
 553                                      base.x - scroll_x, base.y - 9);
 554                       else
 555                         tux_left[(global_frame_counter/2) % tux_left.size()]->draw(
 556                                      base.x - scroll_x, base.y - 9);
 557                     }
 558                 }
 559             }
 560           else
 561             {
 562               /* Tux got coffee! */
 563
 564               if (dir == RIGHT)
 565                 {
 566                   firetux_right[frame_]->draw( base.x- scroll_x, base.y);
 567                 }
 568               else
 569                 {
 570                   firetux_left[frame_]->draw( base.x- scroll_x, base.y);
 571                 }
 572             }
 573         }
 574       else
 575         {
 576           if (invincible_timer.started())
 577             {
 578               float capex = base.x + (base.width - bigcape_right[0]->w) / 2;
 579               capex -= scroll_x;
 580               float capey = base.y + (base.height - bigcape_right[0]->h) / 2;
 581
 582               /* Draw cape (just not in ducked mode since that looks silly): */
 583               if (dir == RIGHT)
 584                 {
 585                   bigcape_right[global_frame_counter % 2]->draw(
 586                           capex, capey);
 587                 }
 588               else
 589                 {
 590                   bigcape_left[global_frame_counter % 2]->draw(
 591                           capex, capey);
 592                 }
 593             }
 594
 595           if (!got_coffee)
 596             {
 597               if (!duck)
 598                 {
 599                   if (!skidding_timer.started())
 600                     {
 601                       if (physic.get_velocity_y() == 0)
 602                         {
 603                           if (dir == RIGHT)
 604                             bigtux_right->draw(base.x- scroll_x - 8, base.y);
 605                           else
 606                               bigtux_left->draw(base.x- scroll_x - 8, base.y);
 607                         }
 608                       else
 609                         {
 610                           if (dir == RIGHT)
 611                             bigtux_right_jump->draw(base.x- scroll_x - 8, base.y);
 612                           else
 613                             bigtux_left_jump->draw(base.x- scroll_x - 8, base.y);
 614                         }
 615                     }
 616                   else
 617                     {
 618                       if (dir == RIGHT)
 619                         skidtux_right->draw(base.x- scroll_x - 8, base.y);
 620                       else
 621                         skidtux_left->draw(base.x- scroll_x - 8, base.y);
 622                     }
 623                 }
 624               else
 625                 {
 626                   if (dir == RIGHT)
 627                     {
 628                       ducktux_right->draw( base.x- scroll_x - 8, base.y - 16);
 629                     }
 630                   else
 631                     {
 632                       ducktux_left->draw( base.x- scroll_x - 8, base.y - 16);
 633                     }
 634                 }
 635             }
 636           else
 637             {
 638               /* Tux has coffee! */
 639               if (!duck)
 640                 {
 641                   if (!skidding_timer.started())
 642                     {
 643                       if (!jumping || physic.get_velocity_y() > 0)
 644                         {
 645                           if (dir == RIGHT)
 646                             {
 647                               bigfiretux_right[frame_]->draw(
 648                                            base.x- scroll_x - 8, base.y);
 649                             }
 650                           else
 651                             {
 652                               bigfiretux_left[frame_]->draw(
 653                                            base.x- scroll_x - 8, base.y);
 654                             }
 655                         }
 656                       else
 657                         {
 658                           if (dir == RIGHT)
 659                             {
 660                               bigfiretux_right_jump->draw(
 661                                            base.x- scroll_x - 8, base.y);
 662                             }
 663                           else
 664                             {
 665                               bigfiretux_left_jump->draw(
 666                                            base.x- scroll_x - 8, base.y);
 667                             }
 668                         }
 669                     }
 670                   else
 671                     {
 672                       if (dir == RIGHT)
 673                         {
 674                           skidfiretux_right->draw(
 675                                        base.x- scroll_x - 8, base.y);
 676                         }
 677                       else
 678                         {
 679                           skidfiretux_left->draw(
 680                                        base.x- scroll_x - 8, base.y);
 681                         }
 682                     }
 683                 }
 684               else
 685                 {
 686                   if (dir == RIGHT)
 687                     {
 688                       duckfiretux_right->draw( base.x- scroll_x - 8, base.y - 16);
 689                     }
 690                   else
 691                     {
 692                       duckfiretux_left->draw( base.x- scroll_x - 8, base.y - 16);
 693                     }
 694                 }
 695             }
 696         }
 697     }
 698
 699   if (debug_mode)
 700     fillrect(base.x - scroll_x, base.y, 32, 32, 75,75,75, 150);
 701 }
 702
 703 void
 704 Player::collision(void* p_c_object, int c_object)
 705 {
 706   BadGuy* pbad_c = NULL;
 707
 708   switch (c_object)
 709     {
 710     case CO_BADGUY:
 711       pbad_c = (BadGuy*) p_c_object;
 712
 713      /* Hurt player if he touches a badguy */
 714       if (!pbad_c->dying && !dying &&
 715           !safe_timer.started() &&
 716           pbad_c->mode != HELD)
 717         {
 718           if (pbad_c->mode == FLAT && input.fire == DOWN)
 719             {
 720               pbad_c->mode = HELD;
 721               pbad_c->base.y-=8;
 722             }
 723           else if (pbad_c->mode == FLAT)
 724             {
 725               // Don't get hurt if we're kicking a flat badguy!
 726             }
 727           else if (pbad_c->mode == KICK)
 728             {
 729               /* Hurt if you get hit by kicked laptop: */
 730               if (!invincible_timer.started())
 731                 {
 732                   kill(SHRINK);
 733                 }
 734               else
 735                 {
 736                    pbad_c->dying = DYING_FALLING;
 737                    play_sound(sounds[SND_FALL], SOUND_CENTER_SPEAKER);
 738                    World::current()->add_score(pbad_c->base.x - scroll_x,
 739                                                pbad_c->base.y,
 740                                                25 * player_status.score_multiplier);
 741                 }
 742             }
 743           else
 744             {
 745               if (!invincible_timer.started())
 746                 {
 747                   kill(SHRINK);
 748                 }
 749               else
 750                 {
 751                   pbad_c->kill_me();
 752                 }
 753             }
 754           player_status.score_multiplier++;
 755         }
 756       break;
 757     default:
 758       break;
 759     }
 760
 761 }
 762
 763 /* Kill Player! */
 764
 765 void
 766 Player::kill(int mode)
 767 {
 768   play_sound(sounds[SND_HURT], SOUND_CENTER_SPEAKER);
 769
 770   physic.set_velocity(0, physic.get_velocity_y());
 771
 772   if (mode == SHRINK && size == BIG)
 773     {
 774       if (got_coffee)
 775         got_coffee = false;
 776
 777       size = SMALL;
 778       base.height = 32;
 779       duck = false;
 780
 781       safe_timer.start(TUX_SAFE_TIME);
 782     }
 783   else
 784     {
 785       physic.enable_gravity(true);
 786       physic.set_acceleration(0, 0);
 787       physic.set_velocity(0, 7);
 788       dying = DYING_SQUISHED;
 789     }
 790 }
 791
 792 void
 793 Player::is_dying()
 794 {
 795   remove_powerups();
 796   dying = DYING_NOT;
 797 }
 798
 799 bool Player::is_dead()
 800 {
 801   if(base.y > screen->h)
 802     return true;
 803   else
 804     return false;
 805 }
 806
 807 /* Remove Tux's power ups */
 808 void
 809 Player::remove_powerups()
 810 {
 811   got_coffee = false;
 812   size = SMALL;
 813   base.height = 32;
 814 }
 815
 816 void
 817 Player::keep_in_bounds()
 818 {
 819   Level* plevel = World::current()->get_level();
 820
 821   /* Keep tux in bounds: */
 822   if (base.x < 0)
 823     { // Lock Tux to the size of the level, so that he doesn't fall of
 824       // on the left side
 825       base.x = 0;
 826     }
 827   else if (base.x < scroll_x)
 828     {
 829       base.x = scroll_x;
 830     }
 831
 832   /* Keep in-bounds, vertically: */
 833   if (base.y > screen->h)
 834     {
 835       kill(KILL);
 836     }
 837
 838   int scroll_threshold = screen->w/2 - 80;
 839   if (debug_mode)
 840     {
 841       scroll_x += screen->w/2;
 842       // Backscrolling for debug mode
 843       if (scroll_x < base.x - 80)
 844         scroll_x = base.x - 80;
 845       else if (scroll_x > base.x + 80)
 846         scroll_x = base.x + 80;
 847       scroll_x -= screen->w/2;
 848
 849       if(scroll_x < 0)
 850         scroll_x = 0;
 851     }
 852   else
 853     {
 854       if (base.x > scroll_threshold + scroll_x
 855           && scroll_x < ((World::current()->get_level()->width * 32) - screen->w))
 856         {
 857           // FIXME: Scrolling needs to be handled by a seperate View
 858           // class, doing it as a player huck is ugly
 859
 860           // Scroll the screen in past center:
 861           scroll_x = base.x - scroll_threshold;
 862
 863           // Lock the scrolling to the levelsize, so that we don't
 864           // scroll over the right border
 865           if (scroll_x > 32 * plevel->width - screen->w)
 866             scroll_x = 32 * plevel->width - screen->w;
 867         }
 868     }
 869 }
 870
 871 // EOF //
 872