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::activate()
  61 {
  62   WalkingBadguy::activate();
  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         if(++squishcount >= MAXSQUISHES) { kill_fall(); break; }
 110         physic.set_velocity_x(-KICKSPEED);
 111       } else if(hit.left && dir == LEFT) {
 112         dir = RIGHT;
 113         sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 114         if(++squishcount >= MAXSQUISHES) { kill_fall(); break; }
 115         physic.set_velocity_x(KICKSPEED);
 116       }
 117       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 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   if(dir == UP) {
 144     return FORCE_MOVE;
 145   }
 146
 147   // handle kicks from left or right side
 148   if(ice_state == ICESTATE_FLAT && get_state() == STATE_ACTIVE) {
 149     if(hit.left) {
 150       dir = RIGHT;
 151       player.kick();
 152       set_state(ICESTATE_KICKED);
 153       return FORCE_MOVE;
 154     } else if(hit.right) {
 155       dir = LEFT;
 156       player.kick();
 157       set_state(ICESTATE_KICKED);
 158       return FORCE_MOVE;
 159     }
 160   }
 161
 162   return BadGuy::collision_player(player, hit);
 163 }
 164
 165 HitResponse
 166 MrIceBlock::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 167 {
 168   switch(ice_state) {
 169     case ICESTATE_NORMAL:
 170       return WalkingBadguy::collision_badguy(badguy, hit);
 171     case ICESTATE_FLAT:
 172       return FORCE_MOVE;
 173     case ICESTATE_KICKED:
 174       badguy.kill_fall();
 175       return FORCE_MOVE;
 176     default:
 177       assert(false);
 178   }
 179
 180   return ABORT_MOVE;
 181 }
 182
 183 bool
 184 MrIceBlock::collision_squished(GameObject& object)
 185 {
 186   switch(ice_state) {
 187     case ICESTATE_KICKED:
 188     case ICESTATE_NORMAL:
 189       squishcount++;
 190       if(squishcount >= MAXSQUISHES) {
 191         kill_fall();
 192         return true;
 193       }
 194
 195       set_state(ICESTATE_FLAT);
 196       nokick_timer.start(NOKICK_TIME);
 197       break;
 198     case ICESTATE_FLAT:
 199       {
 200         MovingObject* movingobject = dynamic_cast<MovingObject*>(&object);
 201         if (movingobject && (movingobject->get_pos().x < get_pos().x)) {
 202           dir = RIGHT;
 203         } else {
 204           dir = LEFT;
 205         }
 206       }
 207       if (nokick_timer.check()) set_state(ICESTATE_KICKED);
 208       break;
 209     case ICESTATE_GRABBED:
 210       assert(false);
 211       break;
 212   }
 213
 214   Player* player = dynamic_cast<Player*>(&object);
 215   if (player) player->bounce(*this);
 216   return true;
 217 }
 218
 219 void
 220 MrIceBlock::set_state(IceState state)
 221 {
 222   if(ice_state == state)
 223     return;
 224
 225   switch(state) {
 226     case ICESTATE_NORMAL:
 227       WalkingBadguy::activate();
 228       break;
 229     case ICESTATE_FLAT:
 230       if(dir == UP) {
 231         physic.set_velocity_y(-KICKSPEED);
 232         bbox.set_size(34, 31.8f);
 233       } else {
 234         sound_manager->play("sounds/stomp.wav", get_pos());
 235         physic.set_velocity_x(0);
 236         physic.set_velocity_y(0);
 237
 238         sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 239       }
 240       flat_timer.start(4);
 241       break;
 242     case ICESTATE_KICKED:
 243       sound_manager->play("sounds/kick.wav", get_pos());
 244
 245       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 246       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 247       // we should slide above 1 block holes now...
 248       bbox.set_size(34, 31.8f);
 249       break;
 250     case ICESTATE_GRABBED:
 251       flat_timer.stop();
 252       break;
 253     default:
 254       assert(false);
 255   }
 256   ice_state = state;
 257 }
 258
 259 void
 260 MrIceBlock::grab(MovingObject&, const Vector& pos, Direction dir)
 261 {
 262   movement = pos - get_pos();
 263   this->dir = dir;
 264   sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 265   set_state(ICESTATE_GRABBED);
 266   set_group(COLGROUP_DISABLED);
 267 }
 268
 269 void
 270 MrIceBlock::ungrab(MovingObject& , Direction dir)
 271 {
 272   this->dir = dir;
 273   set_state(dir == UP ? ICESTATE_FLAT : ICESTATE_KICKED);
 274   set_group(COLGROUP_MOVING);
 275 }
 276
 277 bool
 278 MrIceBlock::is_portable() const
 279 {
 280   return ice_state == ICESTATE_FLAT;
 281 }
 282
 283 IMPLEMENT_FACTORY(MrIceBlock, "mriceblock")