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 "sprite/sprite_manager.hpp"
  23 #include "supertux/object_factory.hpp"
  24
  25 #include <math.h>
  26
  27 namespace {
  28 const float KICKSPEED = 500;
  29 const int MAXSQUISHES = 10;
  30 const float NOKICK_TIME = 0.1f;
  31 }
  32
  33 MrIceBlock::MrIceBlock(const Reader& reader) :
  34   WalkingBadguy(reader, "images/creatures/mr_iceblock/mr_iceblock.sprite", "left", "right"),
  35   ice_state(ICESTATE_NORMAL),
  36   nokick_timer(),
  37   flat_timer(),
  38   squishcount(0)
  39 {
  40   walk_speed = 80;
  41   max_drop_height = 600;
  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 MrIceBlock::MrIceBlock(const Vector& pos, Direction d) :
  48   WalkingBadguy(pos, d, "images/creatures/mr_iceblock/mr_iceblock.sprite", "left", "right"),
  49   ice_state(ICESTATE_NORMAL),
  50   nokick_timer(),
  51   flat_timer(),
  52   squishcount(0)
  53 {
  54   walk_speed = 80;
  55   max_drop_height = 600;
  56   sound_manager->preload("sounds/iceblock_bump.wav");
  57   sound_manager->preload("sounds/stomp.wav");
  58   sound_manager->preload("sounds/kick.wav");
  59 }
  60
  61 void
  62 MrIceBlock::initialize()
  63 {
  64   WalkingBadguy::initialize();
  65   set_state(ICESTATE_NORMAL);
  66 }
  67
  68 void
  69 MrIceBlock::active_update(float elapsed_time)
  70 {
  71   if(ice_state == ICESTATE_GRABBED)
  72     return;
  73
  74   if(ice_state == ICESTATE_FLAT && flat_timer.check()) {
  75     set_state(ICESTATE_NORMAL);
  76   }
  77
  78   if (ice_state == ICESTATE_NORMAL)
  79   {
  80     WalkingBadguy::active_update(elapsed_time);
  81     return;
  82   }
  83
  84   BadGuy::active_update(elapsed_time);
  85 }
  86
  87 bool
  88 MrIceBlock::can_break(){
  89   return ice_state == ICESTATE_KICKED;
  90 }
  91
  92 void
  93 MrIceBlock::collision_solid(const CollisionHit& hit)
  94 {
  95   update_on_ground_flag(hit);
  96
  97   if(hit.top || hit.bottom) { // floor or roof
  98     physic.set_velocity_y(0);
  99   }
 100
 101   // hit left or right
 102   switch(ice_state) {
 103     case ICESTATE_NORMAL:
 104       WalkingBadguy::collision_solid(hit);
 105       break;
 106     case ICESTATE_KICKED: {
 107       if((hit.right && dir == RIGHT) || (hit.left && dir == LEFT)) {
 108         dir = (dir == LEFT) ? RIGHT : LEFT;
 109         sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 110         physic.set_velocity_x(-physic.get_velocity_x()*.975);
 111       }
 112       this->set_action(dir == LEFT ? "flat-left" : "flat-right", /* loops = */ -1);
 113       if(fabsf(physic.get_velocity_x()) < walk_speed*1.5)
 114         set_state(ICESTATE_NORMAL);
 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   // handle kicks from left or right side
 138   if(ice_state == ICESTATE_FLAT && get_state() == STATE_ACTIVE) {
 139     if(hit.left) {
 140       dir = RIGHT;
 141       player.kick();
 142       set_state(ICESTATE_KICKED);
 143       return FORCE_MOVE;
 144     } else if(hit.right) {
 145       dir = LEFT;
 146       player.kick();
 147       set_state(ICESTATE_KICKED);
 148       return FORCE_MOVE;
 149     }
 150   }
 151
 152   return BadGuy::collision_player(player, hit);
 153 }
 154
 155 HitResponse
 156 MrIceBlock::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 157 {
 158   switch(ice_state) {
 159     case ICESTATE_NORMAL:
 160       return WalkingBadguy::collision_badguy(badguy, hit);
 161     case ICESTATE_FLAT:
 162       return FORCE_MOVE;
 163     case ICESTATE_KICKED:
 164       badguy.kill_fall();
 165       return FORCE_MOVE;
 166     default:
 167       assert(false);
 168   }
 169
 170   return ABORT_MOVE;
 171 }
 172
 173 bool
 174 MrIceBlock::collision_squished(GameObject& object)
 175 {
 176   Player* player = dynamic_cast<Player*>(&object);
 177   if(player && (player->does_buttjump || player->is_invincible())) {
 178     player->bounce(*this);
 179     kill_fall();
 180     return true;
 181   }
 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       squishcount++;
 197       if (squishcount >= MAXSQUISHES) {
 198         kill_fall();
 199         return true;
 200       }
 201     }
 202
 203     set_state(ICESTATE_FLAT);
 204     nokick_timer.start(NOKICK_TIME);
 205     break;
 206     case ICESTATE_FLAT:
 207     {
 208       MovingObject* movingobject = dynamic_cast<MovingObject*>(&object);
 209       if (movingobject && (movingobject->get_pos().x < get_pos().x)) {
 210         dir = RIGHT;
 211       } else {
 212         dir = LEFT;
 213       }
 214     }
 215     if (nokick_timer.check()) set_state(ICESTATE_KICKED);
 216     break;
 217     case ICESTATE_GRABBED:
 218       assert(false);
 219       break;
 220   }
 221
 222   if (player) player->bounce(*this);
 223   return true;
 224 }
 225
 226 void
 227 MrIceBlock::set_state(IceState state, bool up)
 228 {
 229   if(ice_state == state)
 230     return;
 231
 232   switch(state) {
 233     case ICESTATE_NORMAL:
 234       this->set_action(dir == LEFT ? "left" : "right", /* loops = */ -1);
 235       WalkingBadguy::initialize();
 236       break;
 237     case ICESTATE_FLAT:
 238       if(up) {
 239         physic.set_velocity_y(-KICKSPEED);
 240       } else {
 241         sound_manager->play("sounds/stomp.wav", get_pos());
 242         physic.set_velocity_x(0);
 243         physic.set_velocity_y(0);
 244       }
 245       this->set_action(dir == LEFT ? "flat-left" : "flat-right", /* loops = */ -1);
 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       this->set_action(dir == LEFT ? "flat-left" : "flat-right", /* loops = */ -1);
 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   this->set_action(dir == LEFT ? "flat-left" : "flat-right", /* loops = */ -1);
 271   set_state(ICESTATE_GRABBED);
 272   set_colgroup_active(COLGROUP_DISABLED);
 273 }
 274
 275 void
 276 MrIceBlock::ungrab(MovingObject& , Direction dir)
 277 {
 278   if(dir == UP) {
 279     set_state(ICESTATE_FLAT, true);
 280   } else {
 281     this->dir = dir;
 282     set_state(ICESTATE_KICKED);
 283   }
 284   set_colgroup_active(COLGROUP_MOVING);
 285 }
 286
 287 bool
 288 MrIceBlock::is_portable() const
 289 {
 290   return ice_state == ICESTATE_FLAT;
 291 }
 292
 293 SmartBlock::SmartBlock(const Reader& reader) :
 294   MrIceBlock(reader)
 295 {
 296   max_drop_height = 16;
 297   sprite = sprite_manager->create("images/creatures/mr_iceblock/smart_block/smart_block.sprite");
 298 }
 299
 300 /* EOF */