src/player.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux -  A Jump'n Run
   4 //  Copyright (C) 2003 Tobias Glaesser <tobi.web@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #include <math.h>
  21
  22 #include "gameloop.h"
  23 #include "globals.h"
  24 #include "player.h"
  25 #include "defines.h"
  26 #include "scene.h"
  27 #include "tile.h"
  28 #include "sprite.h"
  29 #include "screen.h"
  30
  31 Surface* tux_life;
  32 std::vector<Surface*> tux_right;
  33 std::vector<Surface*> tux_left;
  34 Surface* smalltux_jump_left;
  35 Surface* smalltux_jump_right;
  36 Surface* smalltux_stand_left;
  37 Surface* smalltux_stand_right;
  38 Sprite*  smalltux_gameover;
  39 Sprite*  smalltux_skid_left;
  40 Sprite*  smalltux_skid_right;
  41
  42 Sprite* bigtux_right;
  43 Sprite* bigtux_left;
  44 Sprite* bigtux_right_jump;
  45 Sprite* bigtux_left_jump;
  46 Sprite* ducktux_right;
  47 Sprite* ducktux_left;
  48 Surface* skidtux_right;
  49 Surface* skidtux_left;
  50 Surface* firetux_right[3];
  51 Surface* firetux_left[3];
  52 Surface* bigfiretux_right[3];
  53 Surface* bigfiretux_left[3];
  54 Surface* bigfiretux_right_jump;
  55 Surface* bigfiretux_left_jump;
  56 Surface* duckfiretux_right;
  57 Surface* duckfiretux_left;
  58 Surface* skidfiretux_right;
  59 Surface* skidfiretux_left;
  60 Surface* cape_right[2];
  61 Surface* cape_left[2];
  62 Surface* bigcape_right[2];
  63 Surface* bigcape_left[2];
  64
  65 PlayerKeymap keymap;
  66
  67 PlayerKeymap::PlayerKeymap()
  68 {
  69   keymap.jump  = SDLK_UP;
  70   keymap.duck  = SDLK_DOWN;
  71   keymap.left  = SDLK_LEFT;
  72   keymap.right = SDLK_RIGHT;
  73   keymap.fire  = SDLK_LCTRL;
  74 }
  75
  76 void player_input_init(player_input_type* pplayer_input)
  77 {
  78   pplayer_input->down = UP;
  79   pplayer_input->fire = UP;
  80   pplayer_input->left = UP;
  81   pplayer_input->old_fire = UP;
  82   pplayer_input->right = UP;
  83   pplayer_input->up = UP;
  84 }
  85
  86 void
  87 Player::init()
  88 {
  89   Level* plevel = World::current()->get_level();
  90
  91   base.width = 32;
  92   base.height = 32;
  93
  94   size = SMALL;
  95   got_coffee = false;
  96
  97   base.x = plevel->start_pos_x;
  98   base.y = plevel->start_pos_y;
  99   base.xm = 0;
 100   base.ym = 0;
 101   previous_base = old_base = base;
 102   dir = RIGHT;
 103   duck = false;
 104
 105   dying   = DYING_NOT;
 106   jumping = false;
 107
 108   frame_main = 0;
 109   frame_ = 0;
 110
 111   player_input_init(&input);
 112
 113   invincible_timer.init(true);
 114   skidding_timer.init(true);
 115   safe_timer.init(true);
 116   frame_timer.init(true);
 117
 118   physic.reset();
 119 }
 120
 121 int
 122 Player::key_event(SDLKey key, int state)
 123 {
 124   if(key == keymap.right)
 125     {
 126       input.right = state;
 127       return true;
 128     }
 129   else if(key == keymap.left)
 130     {
 131       input.left = state;
 132       return true;
 133     }
 134   else if(key == keymap.jump)
 135     {
 136       input.up = state;
 137       return true;
 138     }
 139   else if(key == keymap.duck)
 140     {
 141       input.down = state;
 142       return true;
 143     }
 144   else if(key == keymap.fire)
 145     {
 146       input.fire = state;
 147       return true;
 148     }
 149   else
 150     return false;
 151 }
 152
 153 void
 154 Player::level_begin()
 155 {
 156   base.x  = 100;
 157   base.y  = 170;
 158   base.xm = 0;
 159   base.ym = 0;
 160   previous_base = old_base = base;
 161   duck = false;
 162
 163   dying = DYING_NOT;
 164
 165   player_input_init(&input);
 166
 167   invincible_timer.init(true);
 168   skidding_timer.init(true);
 169   safe_timer.init(true);
 170   frame_timer.init(true);
 171
 172   physic.reset();
 173 }
 174
 175 void
 176 Player::action(double frame_ratio)
 177 {
 178   bool jumped_in_solid = false;
 179
 180   /* Move tux: */
 181   previous_base = base;
 182
 183   /* --- HANDLE TUX! --- */
 184   if(dying == DYING_NOT)
 185     handle_input();
 186
 187   physic.apply(frame_ratio, base.x, base.y);
 188
 189   if(dying == DYING_NOT)
 190     {
 191       base_type target = base;
 192
 193       collision_swept_object_map(&old_base, &base);
 194
 195       // Don't accelerate Tux if he is running against a wall
 196       if (target.x != base.x)
 197         {
 198           physic.set_velocity_x(0);
 199         }
 200
 201       // special exception for cases where we're stuck under tiles after
 202       // being ducked. In this case we drift out
 203       if(!duck && on_ground() && old_base.x == base.x && old_base.y == base.y
 204          && collision_object_map(&base)) {
 205         base.x += frame_ratio * WALK_SPEED * (dir ? 1 : -1);
 206         previous_base = old_base = base;
 207       }
 208       keep_in_bounds();
 209
 210       // Land:
 211       if (!on_ground())
 212         {
 213           physic.enable_gravity(true);
 214           if(under_solid())
 215             {
 216               // fall down
 217               physic.set_velocity_y(0);
 218               jumped_in_solid = true;
 219             }
 220         }
 221       else
 222         {
 223           /* Land: */
 224           if (physic.get_velocity_y() < 0)
 225             {
 226               base.y = (int)(((int)base.y / 32) * 32);
 227               physic.set_velocity_y(0);
 228             }
 229
 230           physic.enable_gravity(false);
 231           /* Reset score multiplier (for multi-hits): */
 232           player_status.score_multiplier = 1;
 233         }
 234
 235       if(jumped_in_solid)
 236         {
 237           if (isbrick(base.x, base.y) ||
 238               isfullbox(base.x, base.y))
 239             {
 240               World::current()->trygrabdistro(base.x, base.y - 32,BOUNCE);
 241               World::current()->trybumpbadguy(base.x, base.y - 64);
 242
 243               World::current()->trybreakbrick(base.x, base.y, size == SMALL);
 244
 245               bumpbrick(base.x, base.y);
 246               World::current()->tryemptybox(base.x, base.y, RIGHT);
 247             }
 248
 249           if (isbrick(base.x+ 31, base.y) ||
 250               isfullbox(base.x+ 31, base.y))
 251             {
 252               World::current()->trygrabdistro(base.x+ 31, base.y - 32,BOUNCE);
 253               World::current()->trybumpbadguy(base.x+ 31, base.y - 64);
 254
 255               if(size == BIG)
 256                 World::current()->trybreakbrick(base.x+ 31, base.y, size == SMALL);
 257
 258               bumpbrick(base.x+ 31, base.y);
 259               World::current()->tryemptybox(base.x+ 31, base.y, LEFT);
 260             }
 261         }
 262
 263       grabdistros();
 264
 265       if (jumped_in_solid)
 266         {
 267           ++base.y;
 268           ++old_base.y;
 269           if(on_ground())
 270             {
 271               /* Make sure jumping is off. */
 272               jumping = false;
 273             }
 274         }
 275     }
 276
 277   /* ---- DONE HANDLING TUX! --- */
 278
 279   // check some timers
 280   skidding_timer.check();
 281   invincible_timer.check();
 282   safe_timer.check();
 283 }
 284
 285 bool
 286 Player::on_ground()
 287 {
 288   return ( issolid(base.x + base.width / 2, base.y + base.height) ||
 289            issolid(base.x + 1, base.y + base.height) ||
 290            issolid(base.x + base.width - 1, base.y + base.height)  );
 291 }
 292
 293 bool
 294 Player::under_solid()
 295 {
 296   return ( issolid(base.x + base.width / 2, base.y) ||
 297            issolid(base.x + 1, base.y) ||
 298            issolid(base.x + base.width - 1, base.y)  );
 299 }
 300
 301 void
 302 Player::handle_horizontal_input()
 303 {
 304   float vx = physic.get_velocity_x();
 305   float vy = physic.get_velocity_y();
 306   float ax = physic.get_acceleration_x();
 307   float ay = physic.get_acceleration_y();
 308
 309   float dirsign = 0;
 310   if(input.left == DOWN && input.right == UP && (!duck || physic.get_velocity_y() != 0)) {
 311       dir = LEFT;
 312       dirsign = -1;
 313   } else if(input.left == UP && input.right == DOWN && (!duck || physic.get_velocity_y() != 0)) {
 314       dir = RIGHT;
 315       dirsign = 1;
 316   }
 317
 318   if (input.fire == UP) {
 319       ax = dirsign * WALK_ACCELERATION_X;
 320       // limit speed
 321       if(vx >= MAX_WALK_XM && dirsign > 0) {
 322         vx = MAX_WALK_XM;
 323         ax = 0;
 324       } else if(vx <= -MAX_WALK_XM && dirsign < 0) {
 325         vx = -MAX_WALK_XM;
 326         ax = 0;
 327       }
 328   } else {
 329       ax = dirsign * RUN_ACCELERATION_X;
 330       // limit speed
 331       if(vx >= MAX_RUN_XM && dirsign > 0) {
 332         vx = MAX_RUN_XM;
 333         ax = 0;
 334       } else if(vx <= -MAX_RUN_XM && dirsign < 0) {
 335         vx = -MAX_RUN_XM;
 336         ax = 0;
 337       }
 338   }
 339
 340   // we can reach WALK_SPEED without any acceleration
 341   if(dirsign != 0 && fabs(vx) < WALK_SPEED) {
 342     vx = dirsign * WALK_SPEED;
 343   }
 344
 345   // changing directions?
 346   if(on_ground() && ((vx < 0 && dirsign >0) || (vx>0 && dirsign<0))) {
 347       if(fabs(vx)>SKID_XM && !skidding_timer.check()) {
 348           skidding_timer.start(SKID_TIME);
 349           play_sound(sounds[SND_SKID], SOUND_CENTER_SPEAKER);
 350           ax *= 2.5;
 351       } else {
 352           ax *= 2;
 353       }
 354   }
 355
 356   // we get slower when not pressing any keys
 357   if(dirsign == 0) {
 358       if(fabs(vx) < WALK_SPEED) {
 359           vx = 0;
 360           ax = 0;
 361       } else if(vx < 0) {
 362           ax = WALK_ACCELERATION_X * 1.5;
 363       } else {
 364           ax = WALK_ACCELERATION_X * -1.5;
 365       }
 366   }
 367
 368   // if we're on ice slow down acceleration or deceleration
 369   if (isice(base.x, base.y + base.height))
 370   {
 371     /* the acceleration/deceleration rate on ice is inversely proportional to
 372      * the current velocity.
 373      */
 374
 375     // increasing 1 will increase acceleration/deceleration rate
 376     // decreasing 1 will decrease acceleration/deceleration rate
 377     //  must stay above zero, though
 378     if (ax != 0) ax *= 1 / fabs(vx);
 379   }
 380
 381   physic.set_velocity(vx, vy);
 382   physic.set_acceleration(ax, ay);
 383 }
 384
 385 void
 386 Player::handle_vertical_input()
 387 {
 388   if(input.up == DOWN)
 389     {
 390       if (on_ground())
 391         {
 392           // jump higher if we are running
 393           if (physic.get_velocity_x() > MAX_WALK_XM)
 394             physic.set_velocity_y(5.8);
 395           else
 396             physic.set_velocity_y(5.2);
 397
 398           --base.y;
 399           jumping = true;
 400           if (size == SMALL)
 401             play_sound(sounds[SND_JUMP], SOUND_CENTER_SPEAKER);
 402           else
 403             play_sound(sounds[SND_BIGJUMP], SOUND_CENTER_SPEAKER);
 404         }
 405     }
 406   else if(input.up == UP && jumping)
 407     {
 408       jumping = false;
 409       if(physic.get_velocity_y() > 0) {
 410         physic.set_velocity_y(0);
 411       }
 412     }
 413 }
 414
 415 void
 416 Player::handle_input()
 417 {
 418   /* Handle horizontal movement: */
 419     handle_horizontal_input();
 420
 421   /* Jump/jumping? */
 422
 423   if ( input.up == DOWN || (input.up == UP && jumping))
 424     {
 425       handle_vertical_input();
 426     }
 427
 428   /* Shoot! */
 429
 430   if (input.fire == DOWN && input.old_fire == UP && got_coffee)
 431     {
 432       World::current()->add_bullet(base.x, base.y, physic.get_velocity_x(), dir);
 433     }
 434
 435   /* tux animations: */
 436   if(!frame_timer.check())
 437     {
 438       frame_timer.start(25);
 439       if (input.right == UP && input.left == UP)
 440         {
 441           frame_main = 1;
 442           frame_ = 1;
 443         }
 444       else
 445         {
 446           if ((input.fire == DOWN && (global_frame_counter % 2) == 0) ||
 447               (global_frame_counter % 4) == 0)
 448             frame_main = (frame_main + 1) % 4;
 449
 450           frame_ = frame_main;
 451
 452           if (frame_ == 3)
 453             frame_ = 1;
 454         }
 455     }
 456
 457   /* Duck! */
 458   if (input.down == DOWN && size == BIG && !duck && physic.get_velocity_y() == 0)
 459     {
 460       duck = true;
 461       base.height = 32;
 462       base.y += 32;
 463       // changing base size confuses collision otherwise
 464       old_base = previous_base = base;
 465     }
 466   else if(input.down == UP && size == BIG && duck && physic.get_velocity_y() == 0)
 467     {
 468       duck = false;
 469       base.y -= 32;
 470       base.height = 64;
 471       old_base = previous_base = base;
 472     }
 473 }
 474
 475 void
 476 Player::grabdistros()
 477 {
 478   /* Grab distros: */
 479   if (!dying)
 480     {
 481       World::current()->trygrabdistro(base.x, base.y, NO_BOUNCE);
 482       World::current()->trygrabdistro(base.x+ 31, base.y, NO_BOUNCE);
 483
 484       World::current()->trygrabdistro(base.x, base.y + base.height, NO_BOUNCE);
 485       World::current()->trygrabdistro(base.x+ 31, base.y + base.height, NO_BOUNCE);
 486
 487       if(size == BIG)
 488         {
 489           World::current()->trygrabdistro(base.x, base.y + base.height / 2, NO_BOUNCE);
 490           World::current()->trygrabdistro(base.x+ 31, base.y + base.height / 2, NO_BOUNCE);
 491         }
 492
 493     }
 494
 495   /* Enough distros for a One-up? */
 496   if (player_status.distros >= DISTROS_LIFEUP)
 497     {
 498       player_status.distros = player_status.distros - DISTROS_LIFEUP;
 499       if(player_status.lives < MAX_LIVES)
 500         ++player_status.lives;
 501       /*We want to hear the sound even, if MAX_LIVES is reached*/
 502       play_sound(sounds[SND_LIFEUP], SOUND_CENTER_SPEAKER);
 503     }
 504 }
 505
 506 void
 507 Player::draw()
 508 {
 509   if (!safe_timer.started() || (global_frame_counter % 2) == 0)
 510     {
 511       if (dying == DYING_SQUISHED)
 512         {
 513           smalltux_gameover->draw(base.x - scroll_x, base.y);
 514         }
 515       else
 516         {
 517           if (size == SMALL)
 518             {
 519               if (invincible_timer.started())
 520                 {
 521                   if (dir == RIGHT)
 522                     cape_right[global_frame_counter % 2]->draw(base.x- scroll_x, base.y);
 523                   else
 524                     cape_left[global_frame_counter % 2]->draw(base.x- scroll_x, base.y);
 525                 }
 526
 527               if (!got_coffee)
 528                 {
 529                   if (!skidding_timer.started())
 530                     {
 531                       if (physic.get_velocity_y() != 0)
 532                         {
 533                           if (dir == RIGHT)
 534                             smalltux_jump_right->draw( base.x - scroll_x, base.y - 10);
 535                           else
 536                             smalltux_jump_left->draw( base.x - scroll_x, base.y - 10);
 537                         }
 538                       else
 539                         {
 540                           if (fabsf(physic.get_velocity_x()) < 1.0f) // standing
 541                             {
 542                               if (dir == RIGHT)
 543                                 smalltux_stand_right->draw( base.x - scroll_x, base.y - 9);
 544                               else
 545                                 smalltux_stand_left->draw( base.x - scroll_x, base.y - 9);
 546                             }
 547                           else // moving
 548                             {
 549                               if (dir == RIGHT)
 550                                 tux_right[(global_frame_counter/2) % tux_right.size()]->draw(base.x - scroll_x, base.y - 9);
 551                               else
 552                                 tux_left[(global_frame_counter/2) % tux_left.size()]->draw(base.x - scroll_x, base.y - 9);
 553                             }
 554                         }
 555                     }
 556                   else
 557                     {
 558                       if (dir == RIGHT)
 559                         smalltux_skid_right->draw(base.x - scroll_x, base.y);
 560                       else
 561                         smalltux_skid_left->draw(base.x - scroll_x, base.y);
 562                     }
 563                 }
 564               else
 565                 {
 566                   /* Tux got coffee! */
 567
 568                   if (dir == RIGHT)
 569                     {
 570                       firetux_right[frame_]->draw( base.x- scroll_x, base.y);
 571                     }
 572                   else
 573                     {
 574                       firetux_left[frame_]->draw( base.x- scroll_x, base.y);
 575                     }
 576                 }
 577             }
 578           else // Large Tux
 579             {
 580               if (invincible_timer.started())
 581                 {
 582                   float capex = base.x + (base.width - bigcape_right[0]->w) / 2;
 583                   capex -= scroll_x;
 584                   float capey = base.y + (base.height - bigcape_right[0]->h) / 2;
 585
 586                   /* Draw cape (just not in ducked mode since that looks silly): */
 587                   if (dir == RIGHT)
 588                     bigcape_right[global_frame_counter % 2]->draw(capex, capey);
 589                   else
 590                     bigcape_left[global_frame_counter % 2]->draw(capex, capey);
 591                 }
 592
 593               if (!got_coffee)
 594                 {
 595                   if (!duck)
 596                     {
 597                       if (!skidding_timer.started())
 598                         {
 599                           if (physic.get_velocity_y() == 0)
 600                             {
 601                               if (dir == RIGHT)
 602                                 bigtux_right->draw(base.x - scroll_x, base.y);
 603                               else
 604                                 bigtux_left->draw(base.x - scroll_x, base.y);
 605                             }
 606                           else
 607                             {
 608                               if (dir == RIGHT)
 609                                 bigtux_right_jump->draw(base.x - scroll_x, base.y);
 610                               else
 611                                 bigtux_left_jump->draw(base.x - scroll_x, base.y);
 612                             }
 613                         }
 614                       else
 615                         {
 616                           if (dir == RIGHT)
 617                             skidtux_right->draw(base.x - scroll_x - 8, base.y);
 618                           else
 619                             skidtux_left->draw(base.x - scroll_x - 8, base.y);
 620                         }
 621                     }
 622                   else
 623                     {
 624                       if (dir == RIGHT)
 625                         ducktux_right->draw(base.x - scroll_x, base.y);
 626                       else
 627                         ducktux_left->draw(base.x - scroll_x, base.y);
 628                     }
 629                 }
 630               else
 631                 {
 632                   /* Tux has coffee! */
 633                   if (!duck)
 634                     {
 635                       if (!skidding_timer.started())
 636                         {
 637                           if (!jumping || physic.get_velocity_y() > 0)
 638                             {
 639                               if (dir == RIGHT)
 640                                 bigfiretux_right[frame_]->draw(base.x- scroll_x - 8, base.y);
 641                               else
 642                                 bigfiretux_left[frame_]->draw(base.x- scroll_x - 8, base.y);
 643                             }
 644                           else
 645                             {
 646                               if (dir == RIGHT)
 647                                 bigfiretux_right_jump->draw(base.x- scroll_x - 8, base.y);
 648                               else
 649                                 bigfiretux_left_jump->draw(base.x- scroll_x - 8, base.y);
 650                             }
 651                         }
 652                       else
 653                         {
 654                           if (dir == RIGHT)
 655                             skidfiretux_right->draw(base.x- scroll_x - 8, base.y);
 656                           else
 657                             skidfiretux_left->draw(base.x- scroll_x - 8, base.y);
 658                         }
 659                     }
 660                   else
 661                     {
 662                       if (dir == RIGHT)
 663                         duckfiretux_right->draw( base.x- scroll_x - 8, base.y - 16);
 664                       else
 665                         duckfiretux_left->draw( base.x- scroll_x - 8, base.y - 16);
 666                     }
 667                 }
 668             }
 669         }
 670     }
 671
 672   if (debug_mode)
 673     fillrect(base.x - scroll_x, base.y, 32, 32, 75,75,75, 150);
 674 }
 675
 676 void
 677 Player::collision(void* p_c_object, int c_object)
 678 {
 679   BadGuy* pbad_c = NULL;
 680
 681   switch (c_object)
 682     {
 683     case CO_BADGUY:
 684       pbad_c = (BadGuy*) p_c_object;
 685
 686      /* Hurt player if he touches a badguy */
 687       if (!pbad_c->dying && !dying &&
 688           !safe_timer.started() &&
 689           pbad_c->mode != BadGuy::HELD)
 690         {
 691           if (pbad_c->mode == BadGuy::FLAT && input.fire == DOWN)
 692             {
 693               pbad_c->mode = BadGuy::HELD;
 694               pbad_c->base.y-=8;
 695             }
 696           else if (pbad_c->mode == BadGuy::FLAT)
 697             {
 698               // Don't get hurt if we're kicking a flat badguy!
 699             }
 700           else if (pbad_c->mode == BadGuy::KICK)
 701             {
 702               /* Hurt if you get hit by kicked laptop: */
 703               if (!invincible_timer.started())
 704                 {
 705                   kill(SHRINK);
 706                 }
 707               else
 708                 {
 709                    pbad_c->dying = DYING_FALLING;
 710                    play_sound(sounds[SND_FALL], SOUND_CENTER_SPEAKER);
 711                    World::current()->add_score(pbad_c->base.x - scroll_x,
 712                                                pbad_c->base.y,
 713                                                25 * player_status.score_multiplier);
 714                 }
 715             }
 716           else
 717             {
 718               if (!invincible_timer.started())
 719                 {
 720                   kill(SHRINK);
 721                 }
 722               else
 723                 {
 724                   pbad_c->kill_me();
 725                 }
 726             }
 727           player_status.score_multiplier++;
 728         }
 729       break;
 730     default:
 731       break;
 732     }
 733
 734 }
 735
 736 /* Kill Player! */
 737
 738 void
 739 Player::kill(int mode)
 740 {
 741   play_sound(sounds[SND_HURT], SOUND_CENTER_SPEAKER);
 742
 743   physic.set_velocity_x(0);
 744
 745   if (mode == SHRINK && size == BIG)
 746     {
 747       if (got_coffee)
 748         got_coffee = false;
 749
 750       size = SMALL;
 751       base.height = 32;
 752       duck = false;
 753
 754       safe_timer.start(TUX_SAFE_TIME);
 755     }
 756   else
 757     {
 758       physic.enable_gravity(true);
 759       physic.set_acceleration(0, 0);
 760       physic.set_velocity(0, 7);
 761       dying = DYING_SQUISHED;
 762     }
 763 }
 764
 765 void
 766 Player::is_dying()
 767 {
 768   remove_powerups();
 769   dying = DYING_NOT;
 770 }
 771
 772 bool Player::is_dead()
 773 {
 774   if(base.y > screen->h)
 775     return true;
 776   else
 777     return false;
 778 }
 779
 780 /* Remove Tux's power ups */
 781 void
 782 Player::remove_powerups()
 783 {
 784   got_coffee = false;
 785   size = SMALL;
 786   base.height = 32;
 787 }
 788
 789 void
 790 Player::keep_in_bounds()
 791 {
 792   Level* plevel = World::current()->get_level();
 793
 794   /* Keep tux in bounds: */
 795   if (base.x < 0)
 796     { // Lock Tux to the size of the level, so that he doesn't fall of
 797       // on the left side
 798       base.x = 0;
 799     }
 800   else if (base.x < scroll_x)
 801     {
 802       base.x = scroll_x;
 803     }
 804
 805   /* Keep in-bounds, vertically: */
 806   if (base.y > screen->h)
 807     {
 808       kill(KILL);
 809     }
 810
 811   int scroll_threshold = screen->w/2 - 80;
 812   if (debug_mode)
 813     {
 814       scroll_x += screen->w/2;
 815       // Backscrolling for debug mode
 816       if (scroll_x < base.x - 80)
 817         scroll_x = base.x - 80;
 818       else if (scroll_x > base.x + 80)
 819         scroll_x = base.x + 80;
 820       scroll_x -= screen->w/2;
 821
 822       if(scroll_x < 0)
 823         scroll_x = 0;
 824     }
 825   else
 826     {
 827       if (base.x > scroll_threshold + scroll_x
 828           && scroll_x < ((World::current()->get_level()->width * 32) - screen->w))
 829         {
 830           // FIXME: Scrolling needs to be handled by a seperate View
 831           // class, doing it as a player huck is ugly
 832
 833           // Scroll the screen in past center:
 834           scroll_x = base.x - scroll_threshold;
 835
 836           // Lock the scrolling to the levelsize, so that we don't
 837           // scroll over the right border
 838           if (scroll_x > 32 * plevel->width - screen->w)
 839             scroll_x = 32 * plevel->width - screen->w;
 840         }
 841     }
 842 }
 843
 844 // EOF //
 845