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