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 bool
  85 MrIceBlock::can_break(){
  86     return ice_state == ICESTATE_KICKED;
  87 }
  88
  89 void
  90 MrIceBlock::collision_solid(const CollisionHit& hit)
  91 {
  92   update_on_ground_flag(hit);
  93
  94   if(hit.top || hit.bottom) { // floor or roof
  95     physic.set_velocity_y(0);
  96     return;
  97   }
  98
  99   // hit left or right
 100   switch(ice_state) {
 101     case ICESTATE_NORMAL:
 102       WalkingBadguy::collision_solid(hit);
 103       break;
 104     case ICESTATE_KICKED: {
 105       if(hit.right && dir == RIGHT) {
 106         dir = LEFT;
 107         sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 108         physic.set_velocity_x(-KICKSPEED);
 109       } else if(hit.left && dir == LEFT) {
 110         dir = RIGHT;
 111         sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 112         physic.set_velocity_x(KICKSPEED);
 113       }
 114       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 115       break;
 116     }
 117     case ICESTATE_FLAT:
 118       physic.set_velocity_x(0);
 119       break;
 120     case ICESTATE_GRABBED:
 121       break;
 122   }
 123 }
 124
 125 HitResponse
 126 MrIceBlock::collision(GameObject& object, const CollisionHit& hit)
 127 {
 128   if(ice_state == ICESTATE_GRABBED)
 129     return FORCE_MOVE;
 130
 131   return BadGuy::collision(object, hit);
 132 }
 133
 134 HitResponse
 135 MrIceBlock::collision_player(Player& player, const CollisionHit& hit)
 136 {
 137   if(ice_state == ICESTATE_GRABBED)
 138     return FORCE_MOVE;
 139
 140   if(dir == UP) {
 141     return FORCE_MOVE;
 142   }
 143
 144   // handle kicks from left or right side
 145   if(ice_state == ICESTATE_FLAT && get_state() == STATE_ACTIVE) {
 146     if(hit.left) {
 147       dir = RIGHT;
 148       player.kick();
 149       set_state(ICESTATE_KICKED);
 150       return FORCE_MOVE;
 151     } else if(hit.right) {
 152       dir = LEFT;
 153       player.kick();
 154       set_state(ICESTATE_KICKED);
 155       return FORCE_MOVE;
 156     }
 157   }
 158
 159   return BadGuy::collision_player(player, hit);
 160 }
 161
 162 HitResponse
 163 MrIceBlock::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 164 {
 165   switch(ice_state) {
 166     case ICESTATE_NORMAL:
 167       return WalkingBadguy::collision_badguy(badguy, hit);
 168     case ICESTATE_FLAT:
 169       return FORCE_MOVE;
 170     case ICESTATE_KICKED:
 171       badguy.kill_fall();
 172       return FORCE_MOVE;
 173     default:
 174       assert(false);
 175   }
 176
 177   return ABORT_MOVE;
 178 }
 179
 180 bool
 181 MrIceBlock::collision_squished(GameObject& object)
 182 {
 183   switch(ice_state) {
 184     case ICESTATE_KICKED:
 185     case ICESTATE_NORMAL:
 186       squishcount++;
 187       if(squishcount >= MAXSQUISHES) {
 188         kill_fall();
 189         return true;
 190       }
 191
 192       set_state(ICESTATE_FLAT);
 193       break;
 194     case ICESTATE_FLAT:
 195       {
 196         MovingObject* movingobject = dynamic_cast<MovingObject*>(&object);
 197         if (movingobject && (movingobject->get_pos().x < get_pos().x)) {
 198           dir = RIGHT;
 199         } else {
 200           dir = LEFT;
 201         }
 202       }
 203       set_state(ICESTATE_KICKED);
 204       break;
 205     case ICESTATE_GRABBED:
 206       assert(false);
 207       break;
 208   }
 209
 210   Player* player = dynamic_cast<Player*>(&object);
 211   if (player) 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   switch(state) {
 222     case ICESTATE_NORMAL:
 223       WalkingBadguy::activate();
 224       break;
 225     case ICESTATE_FLAT:
 226       if(dir == UP) {
 227         physic.set_velocity_y(-KICKSPEED);
 228         bbox.set_size(34, 31.8f);
 229       } else {
 230         sound_manager->play("sounds/stomp.wav", get_pos());
 231         physic.set_velocity_x(0);
 232         physic.set_velocity_y(0);
 233
 234         sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 235       }
 236       flat_timer.start(4);
 237       break;
 238     case ICESTATE_KICKED:
 239       sound_manager->play("sounds/kick.wav", get_pos());
 240
 241       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 242       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 243       // we should slide above 1 block holes now...
 244       bbox.set_size(34, 31.8f);
 245       break;
 246     case ICESTATE_GRABBED:
 247       flat_timer.stop();
 248       break;
 249     default:
 250       assert(false);
 251   }
 252   ice_state = state;
 253 }
 254
 255 void
 256 MrIceBlock::grab(MovingObject&, const Vector& pos, Direction dir)
 257 {
 258   movement = pos - get_pos();
 259   this->dir = dir;
 260   sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 261   set_state(ICESTATE_GRABBED);
 262   set_group(COLGROUP_DISABLED);
 263 }
 264
 265 void
 266 MrIceBlock::ungrab(MovingObject& , Direction dir)
 267 {
 268   this->dir = dir;
 269   set_state(dir == UP ? ICESTATE_FLAT : ICESTATE_KICKED);
 270   set_group(COLGROUP_MOVING);
 271 }
 272
 273 bool
 274 MrIceBlock::is_portable() const
 275 {
 276   return ice_state == ICESTATE_FLAT;
 277 }
 278
 279 IMPLEMENT_FACTORY(MrIceBlock, "mriceblock")