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   set_direction = false;
  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   : BadGuy(pos, "images/creatures/mr_iceblock/mr_iceblock.sprite"), ice_state(ICESTATE_NORMAL), squishcount(0)
  42 {
  43   set_direction = true;
  44   initial_direction = d;
  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
  55   writer.write_float("x", start_position.x);
  56   writer.write_float("y", start_position.y);
  57
  58   writer.end_list("mriceblock");
  59 }
  60
  61 void
  62 MrIceBlock::activate()
  63 {
  64   if (set_direction) {
  65     dir = initial_direction;
  66   }
  67
  68   physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  69   sprite->set_action(dir == LEFT ? "left" : "right");
  70   set_state(ICESTATE_NORMAL);
  71 }
  72
  73 void
  74 MrIceBlock::active_update(float elapsed_time)
  75 {
  76   if(ice_state == ICESTATE_GRABBED)
  77     return;
  78
  79   if(ice_state == ICESTATE_FLAT && flat_timer.check()) {
  80     set_state(ICESTATE_NORMAL);
  81   }
  82
  83   if (ice_state == ICESTATE_NORMAL && might_fall(601))
  84   {
  85     dir = (dir == LEFT ? RIGHT : LEFT);
  86     sprite->set_action(dir == LEFT ? "left" : "right");
  87     physic.set_velocity_x(-physic.get_velocity_x());
  88   }
  89
  90   BadGuy::active_update(elapsed_time);
  91 }
  92
  93 HitResponse
  94 MrIceBlock::collision_solid(GameObject& object, const CollisionHit& hit)
  95 {
  96   if(fabsf(hit.normal.y) > .5) { // floor or roof
  97     physic.set_velocity_y(0);
  98     return CONTINUE;
  99   }
 100   // hit left or right
 101   switch(ice_state) {
 102     case ICESTATE_NORMAL:
 103       dir = dir == LEFT ? RIGHT : LEFT;
 104       sprite->set_action(dir == LEFT ? "left" : "right");
 105       physic.set_velocity_x(-physic.get_velocity_x());
 106       break;
 107     case ICESTATE_KICKED: {
 108       BonusBlock* bonusblock = dynamic_cast<BonusBlock*> (&object);
 109       if(bonusblock) {
 110         bonusblock->try_open();
 111       }
 112       Brick* brick = dynamic_cast<Brick*> (&object);
 113       if(brick) {
 114         brick->try_break();
 115       }
 116
 117       dir = dir == LEFT ? RIGHT : LEFT;
 118       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 119       physic.set_velocity_x(-physic.get_velocity_x());
 120       sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 121       break;
 122     }
 123     case ICESTATE_FLAT:
 124       physic.set_velocity_x(0);
 125       break;
 126     case ICESTATE_GRABBED:
 127       return FORCE_MOVE;
 128   }
 129
 130   return CONTINUE;
 131 }
 132
 133 HitResponse
 134 MrIceBlock::collision(GameObject& object, const CollisionHit& hit)
 135 {
 136   if(ice_state == ICESTATE_GRABBED)
 137     return FORCE_MOVE;
 138
 139   return BadGuy::collision(object, hit);
 140 }
 141
 142 HitResponse
 143 MrIceBlock::collision_player(Player& player, const CollisionHit& hit)
 144 {
 145   if(ice_state == ICESTATE_GRABBED)
 146     return FORCE_MOVE;
 147
 148   // handle kicks from left or right side
 149   if(ice_state == ICESTATE_FLAT && get_state() == STATE_ACTIVE) {
 150     // hit from left side
 151     if(hit.normal.x > 0.7) {
 152       dir = RIGHT;
 153       player.kick();
 154       set_state(ICESTATE_KICKED);
 155       return FORCE_MOVE;
 156     } else if(hit.normal.x < -0.7) {
 157       dir = LEFT;
 158       player.kick();
 159       set_state(ICESTATE_KICKED);
 160       return FORCE_MOVE;
 161     }
 162   }
 163
 164   return BadGuy::collision_player(player, hit);
 165 }
 166
 167 HitResponse
 168 MrIceBlock::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 169 {
 170   switch(ice_state) {
 171     case ICESTATE_NORMAL:
 172       if(fabsf(hit.normal.x) > .8) {
 173         dir = dir == LEFT ? RIGHT : LEFT;
 174         sprite->set_action(dir == LEFT ? "left" : "right");
 175         physic.set_velocity_x(-physic.get_velocity_x());
 176       }
 177       return CONTINUE;
 178     case ICESTATE_FLAT:
 179       return FORCE_MOVE;
 180     case ICESTATE_KICKED:
 181       badguy.kill_fall();
 182       return FORCE_MOVE;
 183     default:
 184       assert(false);
 185   }
 186
 187   return ABORT_MOVE;
 188 }
 189
 190 bool
 191 MrIceBlock::collision_squished(Player& player)
 192 {
 193   switch(ice_state) {
 194     case ICESTATE_KICKED:
 195     case ICESTATE_NORMAL:
 196       squishcount++;
 197       if(squishcount >= MAXSQUISHES) {
 198         kill_fall();
 199         return true;
 200       }
 201
 202       set_state(ICESTATE_FLAT);
 203       break;
 204     case ICESTATE_FLAT:
 205       if(player.get_pos().x < get_pos().x) {
 206         dir = RIGHT;
 207       } else {
 208         dir = LEFT;
 209       }
 210       set_state(ICESTATE_KICKED);
 211       break;
 212     case ICESTATE_GRABBED:
 213       assert(false);
 214       break;
 215   }
 216
 217   player.bounce(*this);
 218   return true;
 219 }
 220
 221 void
 222 MrIceBlock::set_state(IceState state)
 223 {
 224   if(ice_state == state)
 225     return;
 226
 227   if(state == ICESTATE_FLAT)
 228     flags |= FLAG_PORTABLE;
 229   else
 230     flags &= ~FLAG_PORTABLE;
 231
 232   switch(state) {
 233     case ICESTATE_NORMAL:
 234       physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
 235       sprite->set_action(dir == LEFT ? "left" : "right");
 236       break;
 237     case ICESTATE_FLAT:
 238       sound_manager->play("sounds/stomp.wav", get_pos());
 239       physic.set_velocity_x(0);
 240       physic.set_velocity_y(0);
 241
 242       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 243       flat_timer.start(4);
 244       break;
 245     case ICESTATE_KICKED:
 246       sound_manager->play("sounds/kick.wav", get_pos());
 247
 248       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 249       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 250       // we should slide above 1 block holes now...
 251       bbox.set_size(34, 31.8);
 252       break;
 253     case ICESTATE_GRABBED:
 254       flat_timer.stop();
 255       break;
 256     default:
 257       assert(false);
 258   }
 259   ice_state = state;
 260 }
 261
 262 void
 263 MrIceBlock::grab(MovingObject&, const Vector& pos, Direction dir)
 264 {
 265   movement = pos - get_pos();
 266   this->dir = dir;
 267   sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 268   set_state(ICESTATE_GRABBED);
 269   set_group(COLGROUP_DISABLED);
 270 }
 271
 272 void
 273 MrIceBlock::ungrab(MovingObject& , Direction dir)
 274 {
 275   this->dir = dir;
 276   set_state(ICESTATE_KICKED);
 277   set_group(COLGROUP_MOVING);
 278 }
 279
 280 IMPLEMENT_FACTORY(MrIceBlock, "mriceblock")