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 WALKSPEED = 80;
  27   const float KICKSPEED = 500;
  28   const int MAXSQUISHES = 10;
  29 }
  30
  31 MrIceBlock::MrIceBlock(const lisp::Lisp& reader)
  32   : BadGuy(reader, "images/creatures/mr_iceblock/mr_iceblock.sprite"), ice_state(ICESTATE_NORMAL), squishcount(0)
  33 {
  34   sound_manager->preload("sounds/iceblock_bump.wav");
  35   sound_manager->preload("sounds/stomp.wav");
  36   sound_manager->preload("sounds/kick.wav");
  37 }
  38
  39 MrIceBlock::MrIceBlock(const Vector& pos, Direction d)
  40   : BadGuy(pos, d, "images/creatures/mr_iceblock/mr_iceblock.sprite"), ice_state(ICESTATE_NORMAL), squishcount(0)
  41 {
  42   sound_manager->preload("sounds/iceblock_bump.wav");
  43   sound_manager->preload("sounds/stomp.wav");
  44   sound_manager->preload("sounds/kick.wav");
  45 }
  46
  47 void
  48 MrIceBlock::write(lisp::Writer& writer)
  49 {
  50   writer.start_list("mriceblock");
  51
  52   writer.write_float("x", start_position.x);
  53   writer.write_float("y", start_position.y);
  54
  55   writer.end_list("mriceblock");
  56 }
  57
  58 void
  59 MrIceBlock::activate()
  60 {
  61   physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  62   sprite->set_action(dir == LEFT ? "left" : "right");
  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 && might_fall(601))
  77   {
  78     dir = (dir == LEFT ? RIGHT : LEFT);
  79     sprite->set_action(dir == LEFT ? "left" : "right");
  80     physic.set_velocity_x(-physic.get_velocity_x());
  81   }
  82
  83   BadGuy::active_update(elapsed_time);
  84 }
  85
  86 void
  87 MrIceBlock::collision_solid(const CollisionHit& hit)
  88 {
  89   if(hit.top || hit.bottom) { // floor or roof
  90     physic.set_velocity_y(0);
  91     return;
  92   }
  93
  94   // hit left or right
  95   switch(ice_state) {
  96     case ICESTATE_NORMAL:
  97       dir = dir == LEFT ? RIGHT : LEFT;
  98       sprite->set_action(dir == LEFT ? "left" : "right");
  99       physic.set_velocity_x(-physic.get_velocity_x());
 100       break;
 101     case ICESTATE_KICKED: {
 102 #if 0
 103       // TODO move these into bonusblock class
 104       BonusBlock* bonusblock = dynamic_cast<BonusBlock*> (&object);
 105       if(bonusblock) {
 106         bonusblock->try_open();
 107       }
 108       Brick* brick = dynamic_cast<Brick*> (&object);
 109       if(brick) {
 110         brick->try_break();
 111       }
 112 #endif
 113
 114       dir = dir == LEFT ? RIGHT : LEFT;
 115       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 116       physic.set_velocity_x(-physic.get_velocity_x());
 117       sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 118       break;
 119     }
 120     case ICESTATE_FLAT:
 121       physic.set_velocity_x(0);
 122       break;
 123     case ICESTATE_GRABBED:
 124       break;
 125   }
 126 }
 127
 128 HitResponse
 129 MrIceBlock::collision(GameObject& object, const CollisionHit& hit)
 130 {
 131   if(ice_state == ICESTATE_GRABBED)
 132     return FORCE_MOVE;
 133
 134   return BadGuy::collision(object, hit);
 135 }
 136
 137 HitResponse
 138 MrIceBlock::collision_player(Player& player, const CollisionHit& hit)
 139 {
 140   if(ice_state == ICESTATE_GRABBED)
 141     return FORCE_MOVE;
 142
 143   // handle kicks from left or right side
 144   if(ice_state == ICESTATE_FLAT && get_state() == STATE_ACTIVE) {
 145     if(hit.left) {
 146       dir = RIGHT;
 147       player.kick();
 148       set_state(ICESTATE_KICKED);
 149       return FORCE_MOVE;
 150     } else if(hit.right) {
 151       dir = LEFT;
 152       player.kick();
 153       set_state(ICESTATE_KICKED);
 154       return FORCE_MOVE;
 155     }
 156   }
 157
 158   return BadGuy::collision_player(player, hit);
 159 }
 160
 161 HitResponse
 162 MrIceBlock::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 163 {
 164   switch(ice_state) {
 165     case ICESTATE_NORMAL:
 166       if(hit.left || hit.right) {
 167         dir = dir == LEFT ? RIGHT : LEFT;
 168         sprite->set_action(dir == LEFT ? "left" : "right");
 169         physic.set_velocity_x(-physic.get_velocity_x());
 170       }
 171       return CONTINUE;
 172     case ICESTATE_FLAT:
 173       return FORCE_MOVE;
 174     case ICESTATE_KICKED:
 175       badguy.kill_fall();
 176       return FORCE_MOVE;
 177     default:
 178       assert(false);
 179   }
 180
 181   return ABORT_MOVE;
 182 }
 183
 184 bool
 185 MrIceBlock::collision_squished(Player& player)
 186 {
 187   switch(ice_state) {
 188     case ICESTATE_KICKED:
 189     case ICESTATE_NORMAL:
 190       squishcount++;
 191       if(squishcount >= MAXSQUISHES) {
 192         kill_fall();
 193         return true;
 194       }
 195
 196       set_state(ICESTATE_FLAT);
 197       break;
 198     case ICESTATE_FLAT:
 199       if(player.get_pos().x < get_pos().x) {
 200         dir = RIGHT;
 201       } else {
 202         dir = LEFT;
 203       }
 204       set_state(ICESTATE_KICKED);
 205       break;
 206     case ICESTATE_GRABBED:
 207       assert(false);
 208       break;
 209   }
 210
 211   player.bounce(*this);
 212   return true;
 213 }
 214
 215 void
 216 MrIceBlock::set_state(IceState state)
 217 {
 218   if(ice_state == state)
 219     return;
 220
 221   if(state == ICESTATE_FLAT)
 222     flags |= FLAG_PORTABLE;
 223   else
 224     flags &= ~FLAG_PORTABLE;
 225
 226   switch(state) {
 227     case ICESTATE_NORMAL:
 228       physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
 229       sprite->set_action(dir == LEFT ? "left" : "right");
 230       break;
 231     case ICESTATE_FLAT:
 232       sound_manager->play("sounds/stomp.wav", get_pos());
 233       physic.set_velocity_x(0);
 234       physic.set_velocity_y(0);
 235
 236       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 237       flat_timer.start(4);
 238       break;
 239     case ICESTATE_KICKED:
 240       sound_manager->play("sounds/kick.wav", get_pos());
 241
 242       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 243       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 244       // we should slide above 1 block holes now...
 245       bbox.set_size(34, 31.8);
 246       break;
 247     case ICESTATE_GRABBED:
 248       flat_timer.stop();
 249       break;
 250     default:
 251       assert(false);
 252   }
 253   ice_state = state;
 254 }
 255
 256 void
 257 MrIceBlock::grab(MovingObject&, const Vector& pos, Direction dir)
 258 {
 259   movement = pos - get_pos();
 260   this->dir = dir;
 261   sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 262   set_state(ICESTATE_GRABBED);
 263   set_group(COLGROUP_DISABLED);
 264 }
 265
 266 void
 267 MrIceBlock::ungrab(MovingObject& , Direction dir)
 268 {
 269   this->dir = dir;
 270   set_state(ICESTATE_KICKED);
 271   set_group(COLGROUP_MOVING);
 272 }
 273
 274 IMPLEMENT_FACTORY(MrIceBlock, "mriceblock")