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 && on_ground() && 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   update_on_ground_flag(hit);
  90
  91   if(hit.top || hit.bottom) { // floor or roof
  92     physic.set_velocity_y(0);
  93     return;
  94   }
  95
  96   // hit left or right
  97   switch(ice_state) {
  98     case ICESTATE_NORMAL:
  99       if(hit.right && dir == RIGHT) {
 100         dir = LEFT;
 101         sprite->set_action(dir == LEFT ? "left" : "right");
 102         physic.set_velocity_x(-physic.get_velocity_x());
 103       } else if(hit.left && dir == LEFT) {
 104         dir = RIGHT;
 105         sprite->set_action(dir == LEFT ? "left" : "right");
 106         physic.set_velocity_x(-physic.get_velocity_x());
 107       }
 108       break;
 109     case ICESTATE_KICKED: {
 110 #if 0
 111       // TODO move these into bonusblock class
 112       BonusBlock* bonusblock = dynamic_cast<BonusBlock*> (&object);
 113       if(bonusblock) {
 114         bonusblock->try_open();
 115       }
 116       Brick* brick = dynamic_cast<Brick*> (&object);
 117       if(brick) {
 118         brick->try_break();
 119       }
 120 #endif
 121       if(hit.right && dir == RIGHT) {
 122         dir = LEFT;
 123         sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 124         physic.set_velocity_x(-KICKSPEED);
 125       } else if(hit.left && dir == LEFT) {
 126         dir = RIGHT;
 127         sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 128         physic.set_velocity_x(KICKSPEED);
 129       }
 130       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 131       break;
 132     }
 133     case ICESTATE_FLAT:
 134       physic.set_velocity_x(0);
 135       break;
 136     case ICESTATE_GRABBED:
 137       break;
 138   }
 139 }
 140
 141 HitResponse
 142 MrIceBlock::collision(GameObject& object, const CollisionHit& hit)
 143 {
 144   if(ice_state == ICESTATE_GRABBED)
 145     return FORCE_MOVE;
 146
 147   return BadGuy::collision(object, hit);
 148 }
 149
 150 HitResponse
 151 MrIceBlock::collision_player(Player& player, const CollisionHit& hit)
 152 {
 153   if(ice_state == ICESTATE_GRABBED)
 154     return FORCE_MOVE;
 155
 156   // handle kicks from left or right side
 157   if(ice_state == ICESTATE_FLAT && get_state() == STATE_ACTIVE) {
 158     if(hit.left) {
 159       dir = RIGHT;
 160       player.kick();
 161       set_state(ICESTATE_KICKED);
 162       return FORCE_MOVE;
 163     } else if(hit.right) {
 164       dir = LEFT;
 165       player.kick();
 166       set_state(ICESTATE_KICKED);
 167       return FORCE_MOVE;
 168     }
 169   }
 170
 171   return BadGuy::collision_player(player, hit);
 172 }
 173
 174 HitResponse
 175 MrIceBlock::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 176 {
 177   switch(ice_state) {
 178     case ICESTATE_NORMAL:
 179       if(hit.left || hit.right) {
 180         dir = dir == LEFT ? RIGHT : LEFT;
 181         sprite->set_action(dir == LEFT ? "left" : "right");
 182         physic.set_velocity_x(-physic.get_velocity_x());
 183       }
 184       return CONTINUE;
 185     case ICESTATE_FLAT:
 186       return FORCE_MOVE;
 187     case ICESTATE_KICKED:
 188       badguy.kill_fall();
 189       return FORCE_MOVE;
 190     default:
 191       assert(false);
 192   }
 193
 194   return ABORT_MOVE;
 195 }
 196
 197 bool
 198 MrIceBlock::collision_squished(Player& player)
 199 {
 200   switch(ice_state) {
 201     case ICESTATE_KICKED:
 202     case ICESTATE_NORMAL:
 203       squishcount++;
 204       if(squishcount >= MAXSQUISHES) {
 205         kill_fall();
 206         return true;
 207       }
 208
 209       set_state(ICESTATE_FLAT);
 210       break;
 211     case ICESTATE_FLAT:
 212       if(player.get_pos().x < get_pos().x) {
 213         dir = RIGHT;
 214       } else {
 215         dir = LEFT;
 216       }
 217       set_state(ICESTATE_KICKED);
 218       break;
 219     case ICESTATE_GRABBED:
 220       assert(false);
 221       break;
 222   }
 223
 224   player.bounce(*this);
 225   return true;
 226 }
 227
 228 void
 229 MrIceBlock::set_state(IceState state)
 230 {
 231   if(ice_state == state)
 232     return;
 233
 234   if(state == ICESTATE_FLAT)
 235     flags |= FLAG_PORTABLE;
 236   else
 237     flags &= ~FLAG_PORTABLE;
 238
 239   switch(state) {
 240     case ICESTATE_NORMAL:
 241       physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
 242       sprite->set_action(dir == LEFT ? "left" : "right");
 243       break;
 244     case ICESTATE_FLAT:
 245       sound_manager->play("sounds/stomp.wav", get_pos());
 246       physic.set_velocity_x(0);
 247       physic.set_velocity_y(0);
 248
 249       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 250       flat_timer.start(4);
 251       break;
 252     case ICESTATE_KICKED:
 253       sound_manager->play("sounds/kick.wav", get_pos());
 254
 255       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 256       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 257       // we should slide above 1 block holes now...
 258       bbox.set_size(34, 31.8);
 259       break;
 260     case ICESTATE_GRABBED:
 261       flat_timer.stop();
 262       break;
 263     default:
 264       assert(false);
 265   }
 266   ice_state = state;
 267 }
 268
 269 void
 270 MrIceBlock::grab(MovingObject&, const Vector& pos, Direction dir)
 271 {
 272   movement = pos - get_pos();
 273   this->dir = dir;
 274   sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 275   set_state(ICESTATE_GRABBED);
 276   set_group(COLGROUP_DISABLED);
 277 }
 278
 279 void
 280 MrIceBlock::ungrab(MovingObject& , Direction dir)
 281 {
 282   this->dir = dir;
 283   set_state(ICESTATE_KICKED);
 284   set_group(COLGROUP_MOVING);
 285 }
 286
 287 IMPLEMENT_FACTORY(MrIceBlock, "mriceblock")