src/object/block.cpp

   1 //  $Id$
   2 //
   3 //  SuperTux
   4 //  Copyright (C) 2006 Matthias Braun <matze@braunis.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 <config.h>
  21
  22 #include "block.hpp"
  23 #include "log.hpp"
  24
  25 #include <stdexcept>
  26
  27 #include "resources.hpp"
  28 #include "player.hpp"
  29 #include "sector.hpp"
  30 #include "sprite/sprite.hpp"
  31 #include "sprite/sprite_manager.hpp"
  32 #include "video/drawing_context.hpp"
  33 #include "lisp/lisp.hpp"
  34 #include "gameobjs.hpp"
  35 #include "portable.hpp"
  36 #include "moving_object.hpp"
  37 #include "specialriser.hpp"
  38 #include "growup.hpp"
  39 #include "flower.hpp"
  40 #include "oneup.hpp"
  41 #include "star.hpp"
  42 #include "player_status.hpp"
  43 #include "badguy/badguy.hpp"
  44 #include "coin.hpp"
  45 #include "object_factory.hpp"
  46 #include "lisp/list_iterator.hpp"
  47 #include "object_factory.hpp"
  48 #include "level.hpp"
  49
  50 static const float BOUNCY_BRICK_MAX_OFFSET = 8;
  51 static const float BOUNCY_BRICK_SPEED = 90;
  52 static const float EPSILON = .0001f;
  53 static const float BUMP_ROTATION_ANGLE = 10;
  54
  55 Block::Block(Sprite* newsprite)
  56   : sprite(newsprite), bouncing(false), breaking(false), bounce_dir(0), bounce_offset(0), original_y(-1)
  57 {
  58   bbox.set_size(32, 32.1f);
  59   set_group(COLGROUP_STATIC);
  60   sound_manager->preload("sounds/upgrade.wav");
  61   sound_manager->preload("sounds/brick.wav");
  62 }
  63
  64 Block::~Block()
  65 {
  66   delete sprite;
  67 }
  68
  69 HitResponse
  70 Block::collision(GameObject& other, const CollisionHit& )
  71 {
  72   Player* player = dynamic_cast<Player*> (&other);
  73   if(player) {
  74     if(player->get_bbox().get_top() > get_bbox().get_bottom() - 7.0) {
  75       hit(*player);
  76     }
  77   }
  78
  79   // only interact with other objects if...
  80   //   1) we are bouncing
  81   //   2) the object is not portable (either never or not currently)
  82   //   3) the object is being hit from below (baguys don't get killed for activating boxes)
  83   Portable* portable = dynamic_cast<Portable*> (&other);
  84   MovingObject* moving_object = dynamic_cast<MovingObject*> (&other);
  85   bool is_portable = ((portable != 0) && portable->is_portable());
  86   bool hit_mo_from_below = ((moving_object == 0) || (moving_object->get_bbox().get_bottom() > (get_bbox().get_top() - 7.0)));
  87   if(bouncing && !is_portable && hit_mo_from_below) {
  88
  89     // Badguys get killed
  90     BadGuy* badguy = dynamic_cast<BadGuy*> (&other);
  91     if(badguy) {
  92       badguy->kill_fall();
  93     }
  94
  95     // Coins get collected
  96     Coin* coin = dynamic_cast<Coin*> (&other);
  97     if(coin) {
  98       coin->collect();
  99     }
 100
 101     //Eggs get jumped
 102     GrowUp* growup = dynamic_cast<GrowUp*> (&other);
 103     if(growup) {
 104       growup->do_jump();
 105     }
 106
 107   }
 108
 109   return SOLID;
 110 }
 111
 112 void
 113 Block::update(float elapsed_time)
 114 {
 115   if(!bouncing)
 116     return;
 117
 118   float offset = original_y - get_pos().y;
 119   if(offset > BOUNCY_BRICK_MAX_OFFSET) {
 120     bounce_dir = BOUNCY_BRICK_SPEED;
 121     movement = Vector(0, bounce_dir * elapsed_time);
 122     if(breaking){
 123       break_me();
 124     }
 125   } else if(offset < BOUNCY_BRICK_SPEED * elapsed_time && bounce_dir > 0) {
 126     movement = Vector(0, offset);
 127     bounce_dir = 0;
 128     bouncing = false;
 129     sprite->set_angle(0);
 130   } else {
 131     movement = Vector(0, bounce_dir * elapsed_time);
 132   }
 133 }
 134
 135 void
 136 Block::draw(DrawingContext& context)
 137 {
 138   sprite->draw(context, get_pos(), LAYER_OBJECTS+1);
 139 }
 140
 141 void
 142 Block::start_bounce(float center_of_hitter)
 143 {
 144   if(original_y == -1){
 145     original_y = bbox.p1.y;
 146   }
 147   bouncing = true;
 148   bounce_dir = -BOUNCY_BRICK_SPEED;
 149   bounce_offset = 0;
 150
 151   float offset = (get_bbox().get_middle().x - center_of_hitter)*2 / get_bbox().get_width();
 152   sprite->set_angle(BUMP_ROTATION_ANGLE*offset);
 153 }
 154
 155 void
 156 Block::start_break(float center_of_hitter)
 157 {
 158   start_bounce(center_of_hitter);
 159   breaking = true;
 160 }
 161
 162 //---------------------------------------------------------------------------
 163
 164 BonusBlock::BonusBlock(const Vector& pos, int data)
 165   : Block(sprite_manager->create("images/objects/bonus_block/bonusblock.sprite")), object(0)
 166 {
 167   bbox.set_pos(pos);
 168   sprite->set_action("normal");
 169   switch(data) {
 170     case 1: contents = CONTENT_COIN; break;
 171     case 2: contents = CONTENT_FIREGROW; break;
 172     case 3: contents = CONTENT_STAR; break;
 173     case 4: contents = CONTENT_1UP; break;
 174     case 5: contents = CONTENT_ICEGROW; break;
 175     default:
 176       log_warning << "Invalid box contents" << std::endl;
 177       contents = CONTENT_COIN;
 178       break;
 179   }
 180 }
 181
 182 BonusBlock::BonusBlock(const lisp::Lisp& lisp)
 183   : Block(sprite_manager->create("images/objects/bonus_block/bonusblock.sprite"))
 184 {
 185   Vector pos;
 186
 187   contents = CONTENT_COIN;
 188   lisp::ListIterator iter(&lisp);
 189   while(iter.next()) {
 190     const std::string& token = iter.item();
 191     if(token == "x") {
 192       iter.value()->get(pos.x);
 193     } else if(token == "y") {
 194       iter.value()->get(pos.y);
 195     } else if(token == "contents") {
 196       std::string contentstring;
 197       iter.value()->get(contentstring);
 198       if(contentstring == "coin") {
 199         contents = CONTENT_COIN;
 200       } else if(contentstring == "firegrow") {
 201         contents = CONTENT_FIREGROW;
 202       } else if(contentstring == "icegrow") {
 203         contents = CONTENT_ICEGROW;
 204       } else if(contentstring == "star") {
 205         contents = CONTENT_STAR;
 206       } else if(contentstring == "1up") {
 207         contents = CONTENT_1UP;
 208       } else if(contentstring == "custom") {
 209         contents = CONTENT_CUSTOM;
 210       } else {
 211         log_warning << "Invalid box contents '" << contentstring << "'" << std::endl;
 212       }
 213     } else {
 214       if(contents == CONTENT_CUSTOM) {
 215         GameObject* game_object = create_object(token, *(iter.lisp()));
 216         object = dynamic_cast<MovingObject*> (game_object);
 217         if(object == 0)
 218           throw std::runtime_error(
 219             "Only MovingObjects are allowed inside BonusBlocks");
 220       } else {
 221         log_warning << "Invalid element '" << token << "' in bonusblock" << std::endl;
 222       }
 223     }
 224   }
 225
 226   if(contents == CONTENT_CUSTOM && object == 0)
 227     throw std::runtime_error("Need to specify content object for custom block");
 228
 229   bbox.set_pos(pos);
 230 }
 231
 232 BonusBlock::~BonusBlock()
 233 {
 234   delete object;
 235 }
 236
 237 void
 238 BonusBlock::hit(Player& )
 239 {
 240   try_open();
 241 }
 242
 243 HitResponse
 244 BonusBlock::collision(GameObject& other, const CollisionHit& hit){
 245     BadGuy* badguy = dynamic_cast<BadGuy*> (&other);
 246     if(badguy) {
 247       // hit contains no information for collisions with blocks.
 248       // Badguy's bottom has to be below the top of the bonusblock
 249       // +7 is required to slide over one tile gaps.
 250       if( badguy->can_break() && ( badguy->get_bbox().get_bottom() > get_bbox().get_top() + 7.0) ){
 251         try_open();
 252       }
 253     }
 254     Portable* portable = dynamic_cast<Portable*> (&other);
 255     if(portable) {
 256       MovingObject* moving = dynamic_cast<MovingObject*> (&other);
 257       if(moving->get_bbox().get_top() > get_bbox().get_bottom() - 7.0) {
 258         try_open();
 259       }
 260     }
 261     return Block::collision(other, hit);
 262 }
 263
 264 void
 265 BonusBlock::try_open()
 266 {
 267   if(sprite->get_action() == "empty") {
 268     sound_manager->play("sounds/brick.wav");
 269     return;
 270   }
 271
 272   Sector* sector = Sector::current();
 273   assert(sector);
 274   assert(sector->player);
 275   Player& player = *(sector->player);
 276   Direction direction = (player.get_bbox().get_middle().x > get_bbox().get_middle().x) ? LEFT : RIGHT;
 277
 278   switch(contents) {
 279     case CONTENT_COIN:
 280       Sector::current()->add_object(new BouncyCoin(get_pos(), true));
 281       player.get_status()->add_coins(1);
 282       Sector::current()->get_level()->stats.coins++;
 283       break;
 284
 285     case CONTENT_FIREGROW:
 286       if(player.get_status()->bonus == NO_BONUS) {
 287         SpecialRiser* riser = new SpecialRiser(get_pos(), new GrowUp(direction));
 288         sector->add_object(riser);
 289       } else {
 290         SpecialRiser* riser = new SpecialRiser(
 291             get_pos(), new Flower(FIRE_BONUS));
 292         sector->add_object(riser);
 293       }
 294       sound_manager->play("sounds/upgrade.wav");
 295       break;
 296
 297     case CONTENT_ICEGROW:
 298       if(player.get_status()->bonus == NO_BONUS) {
 299         SpecialRiser* riser = new SpecialRiser(get_pos(), new GrowUp(direction));
 300         sector->add_object(riser);
 301       } else {
 302         SpecialRiser* riser = new SpecialRiser(
 303             get_pos(), new Flower(ICE_BONUS));
 304         sector->add_object(riser);
 305       }
 306       sound_manager->play("sounds/upgrade.wav");
 307       break;
 308
 309     case CONTENT_STAR:
 310       sector->add_object(new Star(get_pos() + Vector(0, -32), direction));
 311       break;
 312
 313     case CONTENT_1UP:
 314       sector->add_object(new OneUp(get_pos(), direction));
 315       break;
 316
 317     case CONTENT_CUSTOM:
 318       SpecialRiser* riser = new SpecialRiser(get_pos(), object);
 319       object = 0;
 320       sector->add_object(riser);
 321       sound_manager->play("sounds/upgrade.wav");
 322       break;
 323   }
 324
 325   start_bounce(player.get_bbox().get_middle().x);
 326   sprite->set_action("empty");
 327 }
 328
 329 void
 330 Block::break_me()
 331 {
 332   Sector* sector = Sector::current();
 333   sector->add_object(
 334       new BrokenBrick(new Sprite(*sprite), get_pos(), Vector(-100, -400)));
 335   sector->add_object(
 336       new BrokenBrick(new Sprite(*sprite), get_pos() + Vector(0, 16),
 337         Vector(-150, -300)));
 338   sector->add_object(
 339       new BrokenBrick(new Sprite(*sprite), get_pos() + Vector(16, 0),
 340         Vector(100, -400)));
 341   sector->add_object(
 342       new BrokenBrick(new Sprite(*sprite), get_pos() + Vector(16, 16),
 343         Vector(150, -300)));
 344   remove_me();
 345 }
 346
 347 IMPLEMENT_FACTORY(BonusBlock, "bonusblock");
 348
 349 //---------------------------------------------------------------------------
 350
 351 Brick::Brick(const Vector& pos, int data)
 352   : Block(sprite_manager->create("images/objects/bonus_block/brick.sprite")), breakable(false),
 353     coin_counter(0)
 354 {
 355   bbox.set_pos(pos);
 356   if(data == 1)
 357     coin_counter = 5;
 358   else
 359     breakable = true;
 360 }
 361
 362 void
 363 Brick::hit(Player& player)
 364 {
 365   if(sprite->get_action() == "empty")
 366     return;
 367
 368   try_break(&player);
 369 }
 370
 371 HitResponse
 372 Brick::collision(GameObject& other, const CollisionHit& hit){
 373
 374     Player* player = dynamic_cast<Player*> (&other);
 375     if (player) {
 376       if (player->does_buttjump) try_break();
 377     }
 378
 379     BadGuy* badguy = dynamic_cast<BadGuy*> (&other);
 380     if(badguy) {
 381       // hit contains no information for collisions with blocks.
 382       // Badguy's bottom has to be below the top of the brick
 383       // +7 is required to slide over one tile gaps.
 384       if( badguy->can_break() && ( badguy->get_bbox().get_bottom() > get_bbox().get_top() + 7.0 ) ){
 385         try_break();
 386       }
 387     }
 388     Portable* portable = dynamic_cast<Portable*> (&other);
 389     if(portable) {
 390       MovingObject* moving = dynamic_cast<MovingObject*> (&other);
 391       if(moving->get_bbox().get_top() > get_bbox().get_bottom() - 7.0) {
 392         try_break();
 393       }
 394     }
 395    return Block::collision(other, hit);
 396 }
 397
 398 void
 399 Brick::try_break(Player* player)
 400 {
 401   if(sprite->get_action() == "empty")
 402     return;
 403
 404   sound_manager->play("sounds/brick.wav");
 405   Sector* sector = Sector::current();
 406   Player& player_one = *(sector->player);
 407   if(coin_counter > 0) {
 408     sector->add_object(new BouncyCoin(get_pos(),true));
 409     coin_counter--;
 410     player_one.get_status()->add_coins(1);
 411     if(coin_counter == 0)
 412       sprite->set_action("empty");
 413     start_bounce(player->get_bbox().get_middle().x);
 414   } else if(breakable) {
 415     if(player){
 416       if(player->is_big()){
 417         start_break(player->get_bbox().get_middle().x);
 418         return;
 419       } else {
 420         start_bounce(player->get_bbox().get_middle().x);
 421         return;
 422       }
 423     }
 424    break_me();
 425   }
 426 }
 427
 428 //IMPLEMENT_FACTORY(Brick, "brick");