src/badguy/mriceblock.cpp

   1 //  SuperTux
   2 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
   3 //
   4 //  This program is free software: you can redistribute it and/or modify
   5 //  it under the terms of the GNU General Public License as published by
   6 //  the Free Software Foundation, either version 3 of the License, or
   7 //  (at your option) any later version.
   8 //
   9 //  This program is distributed in the hope that it will be useful,
  10 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 //  GNU General Public License for more details.
  13 //
  14 //  You should have received a copy of the GNU General Public License
  15 //  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 #include "badguy/mriceblock.hpp"
  18
  19 #include "audio/sound_manager.hpp"
  20 #include "object/player.hpp"
  21 #include "sprite/sprite.hpp"
  22 #include "supertux/object_factory.hpp"
  23
  24 namespace {
  25 const float KICKSPEED = 500;
  26 const int MAXSQUISHES = 10;
  27 const float NOKICK_TIME = 0.1f;
  28 }
  29
  30 MrIceBlock::MrIceBlock(const Reader& reader) :
  31   WalkingBadguy(reader, "images/creatures/mr_iceblock/mr_iceblock.sprite", "left", "right"),
  32   ice_state(ICESTATE_NORMAL),
  33   nokick_timer(),
  34   flat_timer(),
  35   squishcount(0)
  36 {
  37   walk_speed = 80;
  38   max_drop_height = 600;
  39   sound_manager->preload("sounds/iceblock_bump.wav");
  40   sound_manager->preload("sounds/stomp.wav");
  41   sound_manager->preload("sounds/kick.wav");
  42 }
  43
  44 MrIceBlock::MrIceBlock(const Vector& pos, Direction d) :
  45   WalkingBadguy(pos, d, "images/creatures/mr_iceblock/mr_iceblock.sprite", "left", "right"),
  46   ice_state(ICESTATE_NORMAL),
  47   nokick_timer(),
  48   flat_timer(),
  49   squishcount(0)
  50 {
  51   walk_speed = 80;
  52   max_drop_height = 600;
  53   sound_manager->preload("sounds/iceblock_bump.wav");
  54   sound_manager->preload("sounds/stomp.wav");
  55   sound_manager->preload("sounds/kick.wav");
  56 }
  57
  58 void
  59 MrIceBlock::initialize()
  60 {
  61   WalkingBadguy::initialize();
  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(dir == UP) {
 138     return FORCE_MOVE;
 139   }
 140
 141   // handle kicks from left or right side
 142   if(ice_state == ICESTATE_FLAT && get_state() == STATE_ACTIVE) {
 143     if(hit.left) {
 144       dir = RIGHT;
 145       player.kick();
 146       set_state(ICESTATE_KICKED);
 147       return FORCE_MOVE;
 148     } else if(hit.right) {
 149       dir = LEFT;
 150       player.kick();
 151       set_state(ICESTATE_KICKED);
 152       return FORCE_MOVE;
 153     }
 154   }
 155
 156   return BadGuy::collision_player(player, hit);
 157 }
 158
 159 HitResponse
 160 MrIceBlock::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 161 {
 162   switch(ice_state) {
 163     case ICESTATE_NORMAL:
 164       return WalkingBadguy::collision_badguy(badguy, hit);
 165     case ICESTATE_FLAT:
 166       return FORCE_MOVE;
 167     case ICESTATE_KICKED:
 168       badguy.kill_fall();
 169       return FORCE_MOVE;
 170     default:
 171       assert(false);
 172   }
 173
 174   return ABORT_MOVE;
 175 }
 176
 177 bool
 178 MrIceBlock::collision_squished(GameObject& object)
 179 {
 180   switch(ice_state) {
 181     case ICESTATE_KICKED:
 182     {
 183       BadGuy* badguy = dynamic_cast<BadGuy*>(&object);
 184       if (badguy) {
 185         badguy->kill_fall();
 186         break;
 187       }
 188     }
 189
 190     // fall through
 191     case ICESTATE_NORMAL:
 192     {
 193       Player* player = dynamic_cast<Player*>(&object);
 194       squishcount++;
 195       if ((squishcount >= MAXSQUISHES) || (player && player->does_buttjump)) {
 196         kill_fall();
 197         return true;
 198       }
 199     }
 200
 201     set_state(ICESTATE_FLAT);
 202     nokick_timer.start(NOKICK_TIME);
 203     break;
 204     case ICESTATE_FLAT:
 205     {
 206       MovingObject* movingobject = dynamic_cast<MovingObject*>(&object);
 207       if (movingobject && (movingobject->get_pos().x < get_pos().x)) {
 208         dir = RIGHT;
 209       } else {
 210         dir = LEFT;
 211       }
 212     }
 213     if (nokick_timer.check()) set_state(ICESTATE_KICKED);
 214     break;
 215     case ICESTATE_GRABBED:
 216       assert(false);
 217       break;
 218   }
 219
 220   Player* player = dynamic_cast<Player*>(&object);
 221   if (player) player->bounce(*this);
 222   return true;
 223 }
 224
 225 void
 226 MrIceBlock::set_state(IceState state)
 227 {
 228   if(ice_state == state)
 229     return;
 230
 231   switch(state) {
 232     case ICESTATE_NORMAL:
 233       WalkingBadguy::initialize();
 234       break;
 235     case ICESTATE_FLAT:
 236       if(dir == UP) {
 237         physic.set_velocity_y(-KICKSPEED);
 238         bbox.set_size(34, 31.8f);
 239       } else {
 240         sound_manager->play("sounds/stomp.wav", get_pos());
 241         physic.set_velocity_x(0);
 242         physic.set_velocity_y(0);
 243
 244         sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 245       }
 246       flat_timer.start(4);
 247       break;
 248     case ICESTATE_KICKED:
 249       sound_manager->play("sounds/kick.wav", get_pos());
 250
 251       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 252       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 253       // we should slide above 1 block holes now...
 254       bbox.set_size(34, 31.8f);
 255       break;
 256     case ICESTATE_GRABBED:
 257       flat_timer.stop();
 258       break;
 259     default:
 260       assert(false);
 261   }
 262   ice_state = state;
 263 }
 264
 265 void
 266 MrIceBlock::grab(MovingObject&, const Vector& pos, Direction dir)
 267 {
 268   movement = pos - get_pos();
 269   this->dir = dir;
 270   sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 271   set_state(ICESTATE_GRABBED);
 272   set_colgroup_active(COLGROUP_DISABLED);
 273 }
 274
 275 void
 276 MrIceBlock::ungrab(MovingObject& , Direction dir)
 277 {
 278   this->dir = dir;
 279   set_state(dir == UP ? ICESTATE_FLAT : ICESTATE_KICKED);
 280   set_colgroup_active(COLGROUP_MOVING);
 281 }
 282
 283 bool
 284 MrIceBlock::is_portable() const
 285 {
 286   return ice_state == ICESTATE_FLAT;
 287 }
 288
 289 /* EOF */