src/badguy/mriceblock.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 "mriceblock.hpp"
  23 #include "object/block.hpp"
  24
  25 namespace {
  26   const float KICKSPEED = 500;
  27   const int MAXSQUISHES = 10;
  28   const float NOKICK_TIME = 0.1f;
  29 }
  30
  31 MrIceBlock::MrIceBlock(const lisp::Lisp& reader)
  32   : WalkingBadguy(reader, "images/creatures/mr_iceblock/mr_iceblock.sprite", "left", "right"), ice_state(ICESTATE_NORMAL), squishcount(0)
  33 {
  34   walk_speed = 80;
  35   max_drop_height = 600;
  36   sound_manager->preload("sounds/iceblock_bump.wav");
  37   sound_manager->preload("sounds/stomp.wav");
  38   sound_manager->preload("sounds/kick.wav");
  39 }
  40
  41 MrIceBlock::MrIceBlock(const Vector& pos, Direction d)
  42   : WalkingBadguy(pos, d, "images/creatures/mr_iceblock/mr_iceblock.sprite", "left", "right"), ice_state(ICESTATE_NORMAL), squishcount(0)
  43 {
  44   walk_speed = 80;
  45   max_drop_height = 600;
  46   sound_manager->preload("sounds/iceblock_bump.wav");
  47   sound_manager->preload("sounds/stomp.wav");
  48   sound_manager->preload("sounds/kick.wav");
  49 }
  50
  51 void
  52 MrIceBlock::write(lisp::Writer& writer)
  53 {
  54   writer.start_list("mriceblock");
  55   WalkingBadguy::write(writer);
  56   writer.end_list("mriceblock");
  57 }
  58
  59 void
  60 MrIceBlock::initialize()
  61 {
  62   WalkingBadguy::initialize();
  63   set_state(ICESTATE_NORMAL);
  64 }
  65
  66 void
  67 MrIceBlock::active_update(float elapsed_time)
  68 {
  69   if(ice_state == ICESTATE_GRABBED)
  70     return;
  71
  72   if(ice_state == ICESTATE_FLAT && flat_timer.check()) {
  73     set_state(ICESTATE_NORMAL);
  74   }
  75
  76   if (ice_state == ICESTATE_NORMAL)
  77   {
  78     WalkingBadguy::active_update(elapsed_time);
  79     return;
  80   }
  81
  82   BadGuy::active_update(elapsed_time);
  83 }
  84
  85 bool
  86 MrIceBlock::can_break(){
  87     return ice_state == ICESTATE_KICKED;
  88 }
  89
  90 void
  91 MrIceBlock::collision_solid(const CollisionHit& hit)
  92 {
  93   update_on_ground_flag(hit);
  94
  95   if(hit.top || hit.bottom) { // floor or roof
  96     physic.set_velocity_y(0);
  97     return;
  98   }
  99
 100   // hit left or right
 101   switch(ice_state) {
 102     case ICESTATE_NORMAL:
 103       WalkingBadguy::collision_solid(hit);
 104       break;
 105     case ICESTATE_KICKED: {
 106       if(hit.right && dir == RIGHT) {
 107         dir = LEFT;
 108         sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 109         physic.set_velocity_x(-KICKSPEED);
 110       } else if(hit.left && dir == LEFT) {
 111         dir = RIGHT;
 112         sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 113         physic.set_velocity_x(KICKSPEED);
 114       }
 115       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 116       break;
 117     }
 118     case ICESTATE_FLAT:
 119       physic.set_velocity_x(0);
 120       break;
 121     case ICESTATE_GRABBED:
 122       break;
 123   }
 124 }
 125
 126 HitResponse
 127 MrIceBlock::collision(GameObject& object, const CollisionHit& hit)
 128 {
 129   if(ice_state == ICESTATE_GRABBED)
 130     return FORCE_MOVE;
 131
 132   return BadGuy::collision(object, hit);
 133 }
 134
 135 HitResponse
 136 MrIceBlock::collision_player(Player& player, const CollisionHit& hit)
 137 {
 138   if(ice_state == ICESTATE_GRABBED)
 139     return FORCE_MOVE;
 140
 141   if(dir == UP) {
 142     return FORCE_MOVE;
 143   }
 144
 145   // handle kicks from left or right side
 146   if(ice_state == ICESTATE_FLAT && get_state() == STATE_ACTIVE) {
 147     if(hit.left) {
 148       dir = RIGHT;
 149       player.kick();
 150       set_state(ICESTATE_KICKED);
 151       return FORCE_MOVE;
 152     } else if(hit.right) {
 153       dir = LEFT;
 154       player.kick();
 155       set_state(ICESTATE_KICKED);
 156       return FORCE_MOVE;
 157     }
 158   }
 159
 160   return BadGuy::collision_player(player, hit);
 161 }
 162
 163 HitResponse
 164 MrIceBlock::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 165 {
 166   switch(ice_state) {
 167     case ICESTATE_NORMAL:
 168       return WalkingBadguy::collision_badguy(badguy, hit);
 169     case ICESTATE_FLAT:
 170       return FORCE_MOVE;
 171     case ICESTATE_KICKED:
 172       badguy.kill_fall();
 173       return FORCE_MOVE;
 174     default:
 175       assert(false);
 176   }
 177
 178   return ABORT_MOVE;
 179 }
 180
 181 bool
 182 MrIceBlock::collision_squished(GameObject& object)
 183 {
 184   switch(ice_state) {
 185     case ICESTATE_KICKED:
 186     case ICESTATE_NORMAL:
 187       {
 188         Player* player = dynamic_cast<Player*>(&object);
 189         squishcount++;
 190         if ((squishcount >= MAXSQUISHES) || (player && player->does_buttjump)) {
 191           kill_fall();
 192           return true;
 193         }
 194       }
 195
 196       set_state(ICESTATE_FLAT);
 197       nokick_timer.start(NOKICK_TIME);
 198       break;
 199     case ICESTATE_FLAT:
 200       {
 201         MovingObject* movingobject = dynamic_cast<MovingObject*>(&object);
 202         if (movingobject && (movingobject->get_pos().x < get_pos().x)) {
 203           dir = RIGHT;
 204         } else {
 205           dir = LEFT;
 206         }
 207       }
 208       if (nokick_timer.check()) set_state(ICESTATE_KICKED);
 209       break;
 210     case ICESTATE_GRABBED:
 211       assert(false);
 212       break;
 213   }
 214
 215   Player* player = dynamic_cast<Player*>(&object);
 216   if (player) player->bounce(*this);
 217   return true;
 218 }
 219
 220 void
 221 MrIceBlock::set_state(IceState state)
 222 {
 223   if(ice_state == state)
 224     return;
 225
 226   switch(state) {
 227     case ICESTATE_NORMAL:
 228       WalkingBadguy::initialize();
 229       break;
 230     case ICESTATE_FLAT:
 231       if(dir == UP) {
 232         physic.set_velocity_y(-KICKSPEED);
 233         bbox.set_size(34, 31.8f);
 234       } else {
 235         sound_manager->play("sounds/stomp.wav", get_pos());
 236         physic.set_velocity_x(0);
 237         physic.set_velocity_y(0);
 238
 239         sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 240       }
 241       flat_timer.start(4);
 242       break;
 243     case ICESTATE_KICKED:
 244       sound_manager->play("sounds/kick.wav", get_pos());
 245
 246       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 247       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 248       // we should slide above 1 block holes now...
 249       bbox.set_size(34, 31.8f);
 250       break;
 251     case ICESTATE_GRABBED:
 252       flat_timer.stop();
 253       break;
 254     default:
 255       assert(false);
 256   }
 257   ice_state = state;
 258 }
 259
 260 void
 261 MrIceBlock::grab(MovingObject&, const Vector& pos, Direction dir)
 262 {
 263   movement = pos - get_pos();
 264   this->dir = dir;
 265   sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 266   set_state(ICESTATE_GRABBED);
 267   set_colgroup_active(COLGROUP_DISABLED);
 268 }
 269
 270 void
 271 MrIceBlock::ungrab(MovingObject& , Direction dir)
 272 {
 273   this->dir = dir;
 274   set_state(dir == UP ? ICESTATE_FLAT : ICESTATE_KICKED);
 275   set_colgroup_active(COLGROUP_MOVING);
 276 }
 277
 278 bool
 279 MrIceBlock::is_portable() const
 280 {
 281   return ice_state == ICESTATE_FLAT;
 282 }
 283
 284 IMPLEMENT_FACTORY(MrIceBlock, "mriceblock")