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 #include <iostream>
  22 #include <cassert>
  23 #include "gameloop.h"
  24 #include "globals.h"
  25 #include "player.h"
  26 #include "defines.h"
  27 #include "scene.h"
  28 #include "tile.h"
  29 #include "sprite.h"
  30 #include "sector.h"
  31 #include "tilemap.h"
  32 #include "camera.h"
  33 #include "gameobjs.h"
  34 #include "screen/screen.h"
  35
  36 // behavior definitions:
  37 #define TILES_FOR_BUTTJUMP 3
  38 // animation times (in ms):
  39 #define SHOOTING_TIME 320
  40 // others stuff:
  41 #define AUTOSCROLL_DEAD_INTERVAL 300
  42
  43 Surface* tux_life;
  44
  45 Sprite* smalltux_gameover;
  46 Sprite* smalltux_star;
  47 Sprite* largetux_star;
  48 Sprite* growingtux_left;
  49 Sprite* growingtux_right;
  50
  51 PlayerSprite smalltux;
  52 PlayerSprite largetux;
  53 PlayerSprite icetux;
  54 PlayerSprite firetux;
  55
  56 PlayerKeymap keymap;
  57
  58 PlayerKeymap::PlayerKeymap()
  59 {
  60   keymap.jump  = SDLK_UP;
  61   keymap.duck  = SDLK_DOWN;
  62   keymap.left  = SDLK_LEFT;
  63   keymap.right = SDLK_RIGHT;
  64   keymap.fire  = SDLK_LCTRL;
  65 }
  66
  67 void player_input_init(player_input_type* pplayer_input)
  68 {
  69   pplayer_input->down = UP;
  70   pplayer_input->fire = UP;
  71   pplayer_input->left = UP;
  72   pplayer_input->old_fire = UP;
  73   pplayer_input->right = UP;
  74   pplayer_input->up = UP;
  75   pplayer_input->old_up = UP;
  76 }
  77
  78 Player::Player()
  79 {
  80   init();
  81 }
  82
  83 Player::~Player()
  84 {
  85 }
  86
  87 void
  88 Player::init()
  89 {
  90   holding_something = false;
  91
  92   base.width = 32;
  93   base.height = 32;
  94
  95   size = SMALL;
  96   got_power = NONE_POWER;
  97
  98   base.x = 0;
  99   base.y = 0;
 100   previous_base = old_base = base;
 101   dir = RIGHT;
 102   old_dir = dir;
 103   duck = false;
 104   dead = false;
 105
 106   dying   = DYING_NOT;
 107   last_ground_y = 0;
 108   fall_mode = ON_GROUND;
 109   jumping = false;
 110   can_jump = true;
 111   butt_jump = false;
 112
 113   frame_main = 0;
 114   frame_ = 0;
 115
 116   player_input_init(&input);
 117
 118   invincible_timer.init(true);
 119   skidding_timer.init(true);
 120   safe_timer.init(true);
 121   frame_timer.init(true);
 122   kick_timer.init(true);
 123   shooting_timer.init(true);
 124   growing_timer.init(true);
 125
 126   physic.reset();
 127 }
 128
 129 int
 130 Player::key_event(SDLKey key, int state)
 131 {
 132   if(key == keymap.right)
 133     {
 134       input.right = state;
 135       return true;
 136     }
 137   else if(key == keymap.left)
 138     {
 139       input.left = state;
 140       return true;
 141     }
 142   else if(key == keymap.jump)
 143     {
 144       input.up = state;
 145       return true;
 146     }
 147   else if(key == keymap.duck)
 148     {
 149       input.down = state;
 150       return true;
 151     }
 152   else if(key == keymap.fire)
 153     {
 154       if (state == UP)
 155         input.old_fire = UP;
 156       input.fire = state;
 157       return true;
 158     }
 159   else
 160     return false;
 161 }
 162
 163 void
 164 Player::level_begin()
 165 {
 166   base.x  = 100;
 167   base.y  = 170;
 168   previous_base = old_base = base;
 169   duck = false;
 170
 171   dying = DYING_NOT;
 172
 173   player_input_init(&input);
 174
 175   invincible_timer.init(true);
 176   skidding_timer.init(true);
 177   safe_timer.init(true);
 178   frame_timer.init(true);
 179   growing_timer.init(true);
 180
 181   physic.reset();
 182 }
 183
 184 void
 185 Player::action(float elapsed_time)
 186 {
 187   bool jumped_in_solid = false;
 188
 189   if(dying && !dying_timer.check()) {
 190     dead = true;
 191     return;
 192   }
 193
 194   if (input.fire == UP)
 195     holding_something = false;
 196
 197   /* Move tux: */
 198   previous_base = base;
 199
 200   /* --- HANDLE TUX! --- */
 201   if(dying == DYING_NOT)
 202     handle_input();
 203
 204   physic.apply(elapsed_time, base.x, base.y);
 205
 206   if(dying == DYING_NOT)
 207     {
 208       base_type target = base;
 209
 210       collision_swept_object_map(&old_base, &base);
 211
 212       if ((!invincible_timer.started() && !safe_timer.started())
 213           && (isspike(base.x, base.y) || isspike(base.x + base.width, base.y)
 214           ||  isspike(base.x, base.y + base.height)
 215           ||  isspike(base.x + base.width, base.y + base.height)))
 216       {
 217          kill(SHRINK);
 218       }
 219
 220       // Don't accelerate Tux if he is running against a wall
 221       if (target.x != base.x)
 222         {
 223           physic.set_velocity_x(0);
 224         }
 225
 226       // special exception for cases where we're stuck under tiles after
 227       // being ducked. In this case we drift out
 228       if(!duck && on_ground() && old_base.x == base.x && old_base.y == base.y
 229          && collision_object_map(base))
 230         {
 231           base.x += elapsed_time * WALK_SPEED * (dir ? 1: -1);
 232           previous_base = old_base = base;
 233         }
 234
 235       // Land:
 236       if (!on_ground())
 237         {
 238           physic.enable_gravity(true);
 239           if(under_solid())
 240             {
 241               // fall down
 242               physic.set_velocity_y(0);
 243               jumped_in_solid = true;
 244               jumping = false;
 245             }
 246         }
 247       else
 248         {
 249           /* Land: */
 250           if (physic.get_velocity_y() < 0)
 251             {
 252               base.y = (int)(((int)base.y / 32) * 32);
 253               physic.set_velocity_y(0);
 254             }
 255
 256           physic.enable_gravity(false);
 257           /* Reset score multiplier (for multi-hits): */
 258           if (!invincible_timer.started())
 259             player_status.score_multiplier = 1;
 260         }
 261
 262       if(jumped_in_solid)
 263         {
 264           if (isbrick(base.x, base.y) ||
 265               isfullbox(base.x, base.y))
 266             {
 267               Sector::current()->trygrabdistro(
 268                   Vector(base.x, base.y - 32), BOUNCE);
 269               Sector::current()->trybumpbadguy(Vector(base.x, base.y - 64));
 270
 271               Sector::current()->trybreakbrick(
 272                   Vector(base.x, base.y), size == SMALL);
 273
 274               bumpbrick(base.x, base.y);
 275               Sector::current()->tryemptybox(Vector(base.x, base.y), RIGHT);
 276             }
 277
 278           if (isbrick(base.x+ 31, base.y) ||
 279               isfullbox(base.x+ 31, base.y))
 280             {
 281               Sector::current()->trygrabdistro(
 282                   Vector(base.x+ 31, base.y - 32), BOUNCE);
 283               Sector::current()->trybumpbadguy(Vector(base.x+ 31, base.y - 64));
 284
 285               if(size == BIG)
 286                 Sector::current()->trybreakbrick(
 287                     Vector(base.x+ 31, base.y), size == SMALL);
 288
 289               bumpbrick(base.x+ 31, base.y);
 290               Sector::current()->tryemptybox(Vector(base.x+ 31, base.y), LEFT);
 291             }
 292         }
 293
 294       grabdistros();
 295
 296       if (jumped_in_solid)
 297         {
 298           ++base.y;
 299           ++old_base.y;
 300           if(on_ground())
 301             {
 302               /* Make sure jumping is off. */
 303               jumping = false;
 304             }
 305         }
 306     }
 307
 308   /* ---- DONE HANDLING TUX! --- */
 309
 310   // check some timers
 311   skidding_timer.check();
 312   invincible_timer.check();
 313   safe_timer.check();
 314   kick_timer.check();
 315 }
 316
 317 bool
 318 Player::on_ground()
 319 {
 320   return ( issolid(base.x + base.width / 2, base.y + base.height) ||
 321            issolid(base.x + 1, base.y + base.height) ||
 322            issolid(base.x + base.width - 1, base.y + base.height));
 323 }
 324
 325 bool
 326 Player::under_solid()
 327 {
 328   return ( issolid(base.x + base.width / 2, base.y) ||
 329            issolid(base.x + 1, base.y) ||
 330            issolid(base.x + base.width - 1, base.y)  );
 331 }
 332
 333 bool
 334 Player::tiles_on_air(int tiles)
 335 {
 336   for(int t = 0; t != tiles; t++)
 337      {
 338      if(issolid(base.x + base.width / 2, base.y + base.height + (tiles*32)) ||
 339          issolid(base.x + 1, base.y + base.height + (tiles*32)) ||
 340          issolid(base.x + base.width - 1, base.y + base.height + (tiles*32)))
 341        return false;
 342      }
 343   return true;
 344 }
 345
 346 void
 347 Player::handle_horizontal_input()
 348 {
 349   float vx = physic.get_velocity_x();
 350   float vy = physic.get_velocity_y();
 351   float ax = physic.get_acceleration_x();
 352   float ay = physic.get_acceleration_y();
 353
 354   float dirsign = 0;
 355   if(input.left == DOWN && input.right == UP && (!duck || physic.get_velocity_y() != 0)) {
 356       old_dir = dir;
 357       dir = LEFT;
 358       dirsign = -1;
 359   } else if(input.left == UP && input.right == DOWN && (!duck || physic.get_velocity_y() != 0)) {
 360       old_dir = dir;
 361       dir = RIGHT;
 362       dirsign = 1;
 363   }
 364
 365   if (input.fire == UP) {
 366       ax = dirsign * WALK_ACCELERATION_X;
 367       // limit speed
 368       if(vx >= MAX_WALK_XM && dirsign > 0) {
 369         vx = MAX_WALK_XM;
 370         ax = 0;
 371       } else if(vx <= -MAX_WALK_XM && dirsign < 0) {
 372         vx = -MAX_WALK_XM;
 373         ax = 0;
 374       }
 375   } else {
 376       ax = dirsign * RUN_ACCELERATION_X;
 377       // limit speed
 378       if(vx >= MAX_RUN_XM && dirsign > 0) {
 379         vx = MAX_RUN_XM;
 380         ax = 0;
 381       } else if(vx <= -MAX_RUN_XM && dirsign < 0) {
 382         vx = -MAX_RUN_XM;
 383         ax = 0;
 384       }
 385   }
 386
 387   // we can reach WALK_SPEED without any acceleration
 388   if(dirsign != 0 && fabs(vx) < WALK_SPEED) {
 389     vx = dirsign * WALK_SPEED;
 390   }
 391
 392   // changing directions?
 393   if(on_ground() && ((vx < 0 && dirsign >0) || (vx>0 && dirsign<0))) {
 394       if(fabs(vx)>SKID_XM && !skidding_timer.check()) {
 395           skidding_timer.start(SKID_TIME);
 396           play_sound(sounds[SND_SKID], SOUND_CENTER_SPEAKER);
 397           ax *= 2.5;
 398       } else {
 399           ax *= 2;
 400       }
 401   }
 402
 403   // we get slower when not pressing any keys
 404   if(dirsign == 0) {
 405       if(fabs(vx) < WALK_SPEED) {
 406           vx = 0;
 407           ax = 0;
 408       } else if(vx < 0) {
 409           ax = WALK_ACCELERATION_X * 1.5;
 410       } else {
 411           ax = WALK_ACCELERATION_X * -1.5;
 412       }
 413   }
 414
 415   // if we're on ice slow down acceleration or deceleration
 416   if (isice(base.x, base.y + base.height))
 417   {
 418     /* the acceleration/deceleration rate on ice is inversely proportional to
 419      * the current velocity.
 420      */
 421
 422     // increasing 1 will increase acceleration/deceleration rate
 423     // decreasing 1 will decrease acceleration/deceleration rate
 424     //  must stay above zero, though
 425     if (ax != 0) ax *= 1 / fabs(vx);
 426   }
 427
 428   physic.set_velocity(vx, vy);
 429   physic.set_acceleration(ax, ay);
 430 }
 431
 432 void
 433 Player::handle_vertical_input()
 434 {
 435   // set fall mode...
 436   if(on_ground()) {
 437     fall_mode = ON_GROUND;
 438     last_ground_y = base.y;
 439   } else {
 440     if(base.y > last_ground_y)
 441       fall_mode = FALLING;
 442     else if(fall_mode == ON_GROUND)
 443       fall_mode = JUMPING;
 444   }
 445
 446   // Press jump key
 447   if(input.up == DOWN && can_jump && on_ground())
 448     {
 449       if(duck) { // only jump a little bit when in duck mode {
 450         physic.set_velocity_y(3);
 451       } else {
 452         // jump higher if we are running
 453         if (fabs(physic.get_velocity_x()) > MAX_WALK_XM)
 454           physic.set_velocity_y(5.8);
 455         else
 456           physic.set_velocity_y(5.2);
 457       }
 458
 459       --base.y;
 460       jumping = true;
 461       can_jump = false;
 462       if (size == SMALL)
 463         play_sound(sounds[SND_JUMP], SOUND_CENTER_SPEAKER);
 464       else
 465         play_sound(sounds[SND_BIGJUMP], SOUND_CENTER_SPEAKER);
 466     }
 467   // Let go of jump key
 468   else if(input.up == UP && jumping && physic.get_velocity_y() > 0)
 469     {
 470       jumping = false;
 471       physic.set_velocity_y(0);
 472     }
 473
 474    /* In case the player has pressed Down while in a certain range of air,
 475       enable butt jump action */
 476   if (input.down == DOWN && !butt_jump)
 477     if(tiles_on_air(TILES_FOR_BUTTJUMP) && jumping)
 478       butt_jump = true;
 479
 480    /* When Down is not held anymore, disable butt jump */
 481   if(butt_jump && input.down == UP)
 482     butt_jump = false;
 483
 484   // Do butt jump
 485   if (butt_jump && on_ground() && size == BIG)
 486   {
 487     butt_jump = false;
 488
 489     // Break bricks beneath Tux
 490     if(Sector::current()->trybreakbrick(
 491           Vector(base.x + 1, base.y + base.height), false)
 492         || Sector::current()->trybreakbrick(
 493            Vector(base.x + base.width - 1, base.y + base.height), false))
 494     {
 495       physic.set_velocity_y(2);
 496       butt_jump = true;
 497     }
 498
 499     // Kill nearby badguys
 500     std::vector<GameObject*> gameobjects = Sector::current()->gameobjects;
 501     for (std::vector<GameObject*>::iterator i = gameobjects.begin();
 502          i != gameobjects.end();
 503          i++)
 504     {
 505       BadGuy* badguy = dynamic_cast<BadGuy*> (*i);
 506       if(badguy)
 507       {
 508         if (fabsf(base.x - badguy->base.x) < 300 &&
 509             fabsf(base.y - badguy->base.y) < 300 &&
 510             (issolid(badguy->base.x + 1, badguy->base.y + badguy->base.height) ||
 511               issolid(badguy->base.x + badguy->base.width - 1, badguy->base.y + badguy->base.height)))
 512           badguy->kill_me(25);
 513       }
 514     }
 515   }
 516
 517   if ( (issolid(base.x + base.width / 2, base.y + base.height + 64) ||
 518         issolid(base.x + 1, base.y + base.height + 64) ||
 519         issolid(base.x + base.width - 1, base.y + base.height + 64))
 520        && jumping  == false
 521        && can_jump == false
 522        && input.up == DOWN
 523        && input.old_up == UP)
 524     {
 525       can_jump = true;
 526     }
 527
 528   if(on_ground())   /* Make sure jumping is off. */
 529     jumping = false;
 530
 531   input.old_up = input.up;
 532 }
 533
 534 void
 535 Player::handle_input()
 536 {
 537   /* Handle horizontal movement: */
 538     handle_horizontal_input();
 539
 540   /* Jump/jumping? */
 541
 542   if (on_ground() && input.up == UP)
 543     can_jump = true;
 544   handle_vertical_input();
 545
 546   /* Shoot! */
 547   if (input.fire == DOWN && input.old_fire == UP && got_power != NONE_POWER)
 548     {
 549       if(Sector::current()->add_bullet(Vector(base.x, base.y + (base.height/2)),
 550           physic.get_velocity_x(), dir))
 551         shooting_timer.start(SHOOTING_TIME);
 552       input.old_fire = DOWN;
 553     }
 554
 555   /* tux animations: */
 556   if(!frame_timer.check())
 557     {
 558       frame_timer.start(25);
 559       if (input.right == UP && input.left == UP)
 560         {
 561           frame_main = 1;
 562           frame_ = 1;
 563         }
 564       else
 565         {
 566           if ((input.fire == DOWN && (global_frame_counter % 2) == 0) ||
 567               (global_frame_counter % 4) == 0)
 568             frame_main = (frame_main + 1) % 4;
 569
 570           frame_ = frame_main;
 571
 572           if (frame_ == 3)
 573             frame_ = 1;
 574         }
 575     }
 576
 577   /* Duck! */
 578   if (input.down == DOWN && size == BIG && !duck && physic.get_velocity_y() == 0 && on_ground())
 579     {
 580       duck = true;
 581       base.height = 32;
 582       base.y += 32;
 583       // changing base size confuses collision otherwise
 584       old_base = previous_base = base;
 585     }
 586   else if(input.down == UP && size == BIG && duck)
 587     {
 588       // try if we can really unduck
 589       base.y -= 32;
 590       base.height = 64;
 591       // when unducking in air we need some space to do so
 592       if(on_ground() || !collision_object_map(base)) {
 593         duck = false;
 594         // changing base size confuses collision otherwise
 595         old_base = previous_base = base;
 596       } else {
 597         // undo the ducking changes
 598         base.y += 32;
 599         base.height = 32;
 600       }
 601     }
 602 }
 603
 604 void
 605 Player::grow(bool animate)
 606 {
 607   if(size == BIG)
 608     return;
 609
 610   size = BIG;
 611   base.height = 64;
 612   base.y -= 32;
 613
 614   if(animate)
 615     growing_timer.start((int)((growingtux_left->get_frames() / growingtux_left->get_fps()) * 1000));
 616
 617   old_base = previous_base = base;
 618 }
 619
 620 void
 621 Player::grabdistros()
 622 {
 623   /* Grab distros: */
 624   if (!dying)
 625     {
 626       Sector::current()->trygrabdistro(Vector(base.x, base.y), NO_BOUNCE);
 627       Sector::current()->trygrabdistro(Vector(base.x+ 31, base.y), NO_BOUNCE);
 628
 629       Sector::current()->trygrabdistro(
 630           Vector(base.x, base.y + base.height), NO_BOUNCE);
 631       Sector::current()->trygrabdistro(
 632           Vector(base.x+ 31, base.y + base.height), NO_BOUNCE);
 633
 634       if(size == BIG)
 635         {
 636           Sector::current()->trygrabdistro(
 637               Vector(base.x, base.y + base.height / 2), NO_BOUNCE);
 638           Sector::current()->trygrabdistro(
 639               Vector(base.x+ 31, base.y + base.height / 2), NO_BOUNCE);
 640         }
 641
 642     }
 643
 644   /* Enough distros for a One-up? */
 645   if (player_status.distros >= DISTROS_LIFEUP)
 646     {
 647       player_status.distros = player_status.distros - DISTROS_LIFEUP;
 648       if(player_status.lives < MAX_LIVES)
 649         ++player_status.lives;
 650       /*We want to hear the sound even, if MAX_LIVES is reached*/
 651       play_sound(sounds[SND_LIFEUP], SOUND_CENTER_SPEAKER);
 652     }
 653 }
 654
 655 void
 656 Player::draw(DrawingContext& context)
 657 {
 658   PlayerSprite* sprite;
 659
 660   if (size == SMALL)
 661     sprite = &smalltux;
 662   else if (got_power == FIRE_POWER)
 663     sprite = &firetux;
 664   else if (got_power == ICE_POWER)
 665     sprite = &icetux;
 666   else
 667     sprite = &largetux;
 668
 669   int layer = LAYER_OBJECTS - 1;
 670   Vector pos = Vector(base.x, base.y);
 671
 672   if (!safe_timer.started() || (global_frame_counter % 2) == 0)
 673     {
 674       if (dying == DYING_SQUISHED)
 675         {
 676           smalltux_gameover->draw(context, pos, LAYER_OBJECTS);
 677         }
 678       else
 679         {
 680           if(growing_timer.check())
 681             {
 682               if (dir == RIGHT)
 683                 growingtux_right->draw(context, pos, layer);
 684               else
 685                 growingtux_left->draw(context, pos, layer);
 686             }
 687           else if (duck && size != SMALL)
 688             {
 689               if (dir == RIGHT)
 690                 sprite->duck_right->draw(context, pos, layer);
 691               else
 692                 sprite->duck_left->draw(context, pos, layer);
 693             }
 694           else if (skidding_timer.started())
 695             {
 696               if (dir == RIGHT)
 697                 sprite->skid_right->draw(context, pos, layer);
 698               else
 699                 sprite->skid_left->draw(context, pos, layer);
 700             }
 701           else if (kick_timer.started())
 702             {
 703               if (dir == RIGHT)
 704                 sprite->kick_right->draw(context, pos, layer);
 705               else
 706                 sprite->kick_left->draw(context, pos, layer);
 707             }
 708           else if (physic.get_velocity_y() != 0)
 709             {
 710               if (dir == RIGHT)
 711                 sprite->jump_right->draw(context, pos, layer);
 712               else
 713                 sprite->jump_left->draw(context, pos, layer);
 714             }
 715           else
 716             {
 717               if (fabsf(physic.get_velocity_x()) < 1.0f) // standing
 718                 {
 719                   if (dir == RIGHT)
 720                     sprite->stand_right->draw(context, pos, layer);
 721                   else
 722                     sprite->stand_left->draw(context, pos, layer);
 723                 }
 724               else // moving
 725                 {
 726                   if (dir == RIGHT)
 727                     sprite->walk_right->draw(context, pos, layer);
 728                   else
 729                     sprite->walk_left->draw(context, pos, layer);
 730                 }
 731             }
 732         }
 733     }
 734
 735   // Draw arm overlay graphics when Tux is holding something
 736   if ((holding_something && physic.get_velocity_y() == 0) || shooting_timer.check() && !duck)
 737   {
 738     if (dir == RIGHT)
 739       sprite->grab_right->draw(context, pos, LAYER_OBJECTS + 1);
 740     else
 741       sprite->grab_left->draw(context, pos, LAYER_OBJECTS + 1);
 742   }
 743
 744   // Draw blinking star overlay
 745   if (invincible_timer.started() &&
 746       (invincible_timer.get_left() > TUX_INVINCIBLE_TIME_WARNING || global_frame_counter % 3))
 747   {
 748     if (size == SMALL || duck)
 749       smalltux_star->draw(context, pos, LAYER_OBJECTS + 2);
 750     else
 751       largetux_star->draw(context, pos, LAYER_OBJECTS + 2);
 752   }
 753
 754 #if 0 // TODO
 755   if (debug_mode)
 756     fillrect(base.x - viewport.get_translation().x,
 757         base.y - viewport.get_translation().y,
 758              base.width, base.height, 75,75,75, 150);
 759 #endif
 760 }
 761
 762 void
 763 Player::collision(const MovingObject& other, int collision_type)
 764 {
 765   (void) other;
 766   (void) collision_type;
 767   // will be implemented later
 768 }
 769
 770 void
 771 Player::collision(void* p_c_object, int c_object)
 772 {
 773   BadGuy* pbad_c = NULL;
 774   Trampoline* ptramp_c = NULL;
 775   FlyingPlatform* pplatform_c = NULL;
 776
 777   switch (c_object)
 778     {
 779     case CO_BADGUY:
 780       pbad_c = (BadGuy*) p_c_object;
 781
 782      /* Hurt player if he touches a badguy */
 783       if (!pbad_c->dying && !dying &&
 784           !safe_timer.started() &&
 785           pbad_c->mode != BadGuy::HELD)
 786         {
 787           if (pbad_c->mode == BadGuy::FLAT && input.fire == DOWN
 788                && !holding_something)
 789             {
 790               holding_something = true;
 791               pbad_c->mode = BadGuy::HELD;
 792               pbad_c->base.y-=8;
 793             }
 794           else if (pbad_c->mode == BadGuy::FLAT)
 795             {
 796               // Don't get hurt if we're kicking a flat badguy!
 797             }
 798           else if (pbad_c->mode == BadGuy::KICK)
 799             {
 800               /* Hurt if you get hit by kicked laptop: */
 801               if (!invincible_timer.started())
 802                 {
 803                   kill(SHRINK);
 804                 }
 805               else
 806                 pbad_c->kill_me(20);
 807             }
 808           else if (pbad_c->frozen_timer.check() && (pbad_c->kind == BAD_MRBOMB
 809               || pbad_c->kind == BAD_JUMPY || pbad_c->kind == BAD_FISH
 810               || pbad_c->kind == BAD_SPIKY))
 811                 pbad_c->kill_me(20);
 812           else
 813             {
 814               if (!invincible_timer.started())
 815                 {
 816                   kill(SHRINK);
 817                 }
 818               else
 819                 {
 820                   pbad_c->kill_me(25);
 821                 }
 822             }
 823           player_status.score_multiplier++;
 824         }
 825       break;
 826
 827     case CO_TRAMPOLINE:
 828       ptramp_c = (Trampoline*) p_c_object;
 829
 830       // Pick up trampoline
 831       if (ptramp_c->mode != Trampoline::M_HELD && input.fire == DOWN && !holding_something && on_ground())
 832       {
 833         holding_something = true;
 834         ptramp_c->mode = Trampoline::M_HELD;
 835         ptramp_c->base.y -= 8;
 836       }
 837       // Set down trampoline
 838       else if (ptramp_c->mode == Trampoline::M_HELD && input.fire != DOWN)
 839       {
 840         holding_something = false;
 841         ptramp_c->mode = Trampoline::M_NORMAL;
 842         ptramp_c->base.y += 8;
 843         ptramp_c->physic.set_velocity(physic.get_velocity_x(), physic.get_velocity_y());
 844
 845         //if (dir == RIGHT)
 846         //  ptramp_c->base.x = base.x + base.width+1;
 847         //else /* LEFT */
 848         //  ptramp_c->base.x = base.x - base.width-1;
 849       }
 850 /*
 851       // Don't let tux walk through trampoline
 852       else if (ptramp_c->mode != Trampoline::M_HELD && on_ground())
 853       {
 854         if (physic.get_velocity_x() > 0) // RIGHT
 855         {
 856           physic.set_velocity_x(0);
 857           base.x = ptramp_c->base.x - base.width;
 858         }
 859         else if (physic.get_velocity_x() < 0) // LEFT
 860         {
 861           physic.set_velocity_x(0);
 862           base.x = ptramp_c->base.x + ptramp_c->base.width;
 863         }
 864       }
 865 */
 866       break;
 867     case CO_FLYING_PLATFORM:
 868       pplatform_c = (FlyingPlatform*) p_c_object;
 869
 870       base.y = pplatform_c->base.y - base.height;
 871       physic.set_velocity_x(pplatform_c->get_vel_x());
 872
 873       physic.enable_gravity(false);
 874       can_jump = true;
 875       fall_mode = ON_GROUND;
 876       break;
 877
 878     default:
 879       break;
 880     }
 881
 882 }
 883
 884 /* Kill Player! */
 885
 886 void
 887 Player::kill(HurtMode mode)
 888 {
 889   if(dying)
 890     return;
 891
 892   play_sound(sounds[SND_HURT], SOUND_CENTER_SPEAKER);
 893
 894   physic.set_velocity_x(0);
 895
 896   if (mode == SHRINK && size == BIG)
 897     {
 898       if (got_power != NONE_POWER)
 899         {
 900           got_power = NONE_POWER;
 901         }
 902       else
 903         {
 904           size = SMALL;
 905           base.height = 32;
 906           duck = false;
 907         }
 908       safe_timer.start(TUX_SAFE_TIME);
 909     }
 910   else
 911     {
 912       physic.enable_gravity(true);
 913       physic.set_acceleration(0, 0);
 914       physic.set_velocity(0, 7);
 915       --player_status.lives;
 916       dying = DYING_SQUISHED;
 917       dying_timer.start(3000);
 918     }
 919 }
 920
 921 /* Remove Tux's power ups */
 922 void
 923 Player::remove_powerups()
 924 {
 925   got_power = NONE_POWER;
 926   size = SMALL;
 927   base.height = 32;
 928 }
 929
 930 void
 931 Player::move(const Vector& vector)
 932 {
 933   base.x = vector.x;
 934   base.y = vector.y;
 935   old_base = previous_base = base;
 936 }
 937
 938 void
 939 Player::check_bounds(Camera* camera)
 940 {
 941   /* Keep tux in bounds: */
 942   if (base.x < 0)
 943     { // Lock Tux to the size of the level, so that he doesn't fall of
 944       // on the left side
 945       base.x = 0;
 946     }
 947
 948   /* Keep in-bounds, vertically: */
 949   if (base.y > Sector::current()->solids->get_height() * 32)
 950     {
 951       kill(KILL);
 952       return;
 953     }
 954
 955   bool adjust = false;
 956   // can happen if back scrolling is disabled
 957   if(base.x < camera->get_translation().x) {
 958     base.x = camera->get_translation().x;
 959     adjust = true;
 960   }
 961   if(base.x >= camera->get_translation().x + screen->w - base.width) {
 962     base.x = camera->get_translation().x + screen->w - base.width;
 963     adjust = true;
 964   }
 965
 966   if(adjust) {
 967     // squished now?
 968     if(collision_object_map(base)) {
 969       kill(KILL);
 970       return;
 971     }
 972   }
 973 }
 974