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(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     {
 186       BadGuy* badguy = dynamic_cast<BadGuy*>(&object);
 187       if (badguy) {
 188         badguy->kill_fall();
 189         break;
 190       }
 191     }
 192
 193     // fall through
 194     case ICESTATE_NORMAL:
 195     {
 196       Player* player = dynamic_cast<Player*>(&object);
 197       squishcount++;
 198       if ((squishcount >= MAXSQUISHES) || (player && player->does_buttjump)) {
 199         kill_fall();
 200         return true;
 201       }
 202     }
 203
 204     set_state(ICESTATE_FLAT);
 205     nokick_timer.start(NOKICK_TIME);
 206     break;
 207     case ICESTATE_FLAT:
 208     {
 209       MovingObject* movingobject = dynamic_cast<MovingObject*>(&object);
 210       if (movingobject && (movingobject->get_pos().x < get_pos().x)) {
 211         dir = RIGHT;
 212       } else {
 213         dir = LEFT;
 214       }
 215     }
 216     if (nokick_timer.check()) set_state(ICESTATE_KICKED);
 217     break;
 218     case ICESTATE_GRABBED:
 219       assert(false);
 220       break;
 221   }
 222
 223   Player* player = dynamic_cast<Player*>(&object);
 224   if (player) 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   switch(state) {
 235     case ICESTATE_NORMAL:
 236       WalkingBadguy::initialize();
 237       break;
 238     case ICESTATE_FLAT:
 239       if(dir == UP) {
 240         physic.set_velocity_y(-KICKSPEED);
 241         bbox.set_size(34, 31.8f);
 242       } else {
 243         sound_manager->play("sounds/stomp.wav", get_pos());
 244         physic.set_velocity_x(0);
 245         physic.set_velocity_y(0);
 246
 247         sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 248       }
 249       flat_timer.start(4);
 250       break;
 251     case ICESTATE_KICKED:
 252       sound_manager->play("sounds/kick.wav", get_pos());
 253
 254       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 255       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 256       // we should slide above 1 block holes now...
 257       bbox.set_size(34, 31.8f);
 258       break;
 259     case ICESTATE_GRABBED:
 260       flat_timer.stop();
 261       break;
 262     default:
 263       assert(false);
 264   }
 265   ice_state = state;
 266 }
 267
 268 void
 269 MrIceBlock::grab(MovingObject&, const Vector& pos, Direction dir)
 270 {
 271   movement = pos - get_pos();
 272   this->dir = dir;
 273   sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 274   set_state(ICESTATE_GRABBED);
 275   set_colgroup_active(COLGROUP_DISABLED);
 276 }
 277
 278 void
 279 MrIceBlock::ungrab(MovingObject& , Direction dir)
 280 {
 281   this->dir = dir;
 282   set_state(dir == UP ? ICESTATE_FLAT : ICESTATE_KICKED);
 283   set_colgroup_active(COLGROUP_MOVING);
 284 }
 285
 286 bool
 287 MrIceBlock::is_portable() const
 288 {
 289   return ice_state == ICESTATE_FLAT;
 290 }
 291
 292 IMPLEMENT_FACTORY(MrIceBlock, "mriceblock");
 293
 294 /* EOF */