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   : ice_state(ICESTATE_NORMAL), squishcount(0)
  33 {
  34   reader.get("x", start_position.x);
  35   reader.get("y", start_position.y);
  36   sprite = sprite_manager->create("images/creatures/mr_iceblock/mr_iceblock.sprite");
  37   bbox.set_size(sprite->get_current_hitbox_width(), sprite->get_current_hitbox_height());
  38   set_direction = false;
  39 }
  40
  41 MrIceBlock::MrIceBlock(float pos_x, float pos_y, Direction d)
  42   : ice_state(ICESTATE_NORMAL), squishcount(0)
  43 {
  44   start_position.x = pos_x;
  45   start_position.y = pos_y;
  46   sprite = sprite_manager->create("images/creatures/mr_iceblock/mr_iceblock.sprite");
  47   bbox.set_size(sprite->get_current_hitbox_width(), sprite->get_current_hitbox_height());
  48   set_direction = true;
  49   initial_direction = d;
  50 }
  51
  52 void
  53 MrIceBlock::write(lisp::Writer& writer)
  54 {
  55   writer.start_list("mriceblock");
  56
  57   writer.write_float("x", start_position.x);
  58   writer.write_float("y", start_position.y);
  59
  60   writer.end_list("mriceblock");
  61 }
  62
  63 void
  64 MrIceBlock::activate()
  65 {
  66   if (set_direction) {
  67     dir = initial_direction;
  68   }
  69
  70   physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  71   sprite->set_action(dir == LEFT ? "left" : "right");
  72 }
  73
  74 void
  75 MrIceBlock::active_update(float elapsed_time)
  76 {
  77   if(ice_state == ICESTATE_GRABBED)
  78     return;
  79
  80   if(ice_state == ICESTATE_FLAT && flat_timer.check()) {
  81     set_state(ICESTATE_NORMAL);
  82   }
  83
  84   if (ice_state == ICESTATE_NORMAL && might_fall(601))
  85   {
  86     dir = (dir == LEFT ? RIGHT : LEFT);
  87     sprite->set_action(dir == LEFT ? "left" : "right");
  88     physic.set_velocity_x(-physic.get_velocity_x());
  89   }
  90
  91   BadGuy::active_update(elapsed_time);
  92 }
  93
  94 HitResponse
  95 MrIceBlock::collision_solid(GameObject& object, const CollisionHit& hit)
  96 {
  97   if(fabsf(hit.normal.y) > .5) { // floor or roof
  98     physic.set_velocity_y(0);
  99     return CONTINUE;
 100   }
 101   // hit left or right
 102   switch(ice_state) {
 103     case ICESTATE_NORMAL:
 104       dir = dir == LEFT ? RIGHT : LEFT;
 105       sprite->set_action(dir == LEFT ? "left" : "right");
 106       physic.set_velocity_x(-physic.get_velocity_x());
 107       break;
 108     case ICESTATE_KICKED: {
 109       BonusBlock* bonusblock = dynamic_cast<BonusBlock*> (&object);
 110       if(bonusblock) {
 111         bonusblock->try_open();
 112       }
 113       Brick* brick = dynamic_cast<Brick*> (&object);
 114       if(brick) {
 115         brick->try_break();
 116       }
 117
 118       dir = dir == LEFT ? RIGHT : LEFT;
 119       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 120       physic.set_velocity_x(-physic.get_velocity_x());
 121       sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 122       break;
 123     }
 124     case ICESTATE_FLAT:
 125       physic.set_velocity_x(0);
 126       break;
 127     case ICESTATE_GRABBED:
 128       return FORCE_MOVE;
 129   }
 130
 131   return CONTINUE;
 132 }
 133
 134 HitResponse
 135 MrIceBlock::collision(GameObject& object, const CollisionHit& hit)
 136 {
 137   if(ice_state == ICESTATE_GRABBED)
 138     return FORCE_MOVE;
 139
 140   return BadGuy::collision(object, hit);
 141 }
 142
 143 HitResponse
 144 MrIceBlock::collision_player(Player& player, const CollisionHit& hit)
 145 {
 146   if(ice_state == ICESTATE_GRABBED)
 147     return FORCE_MOVE;
 148
 149   // handle kicks from left or right side
 150   if(ice_state == ICESTATE_FLAT && get_state() == STATE_ACTIVE) {
 151     // hit from left side
 152     if(hit.normal.x > 0.7 &&
 153             !player.get_controller()->hold(Controller::ACTION)) {
 154       dir = RIGHT;
 155       player.kick();
 156       set_state(ICESTATE_KICKED);
 157       return FORCE_MOVE;
 158     }
 159     else if(hit.normal.x < -0.7 &&
 160             !player.get_controller()->hold(Controller::ACTION)) {
 161       dir = LEFT;
 162       player.kick();
 163       set_state(ICESTATE_KICKED);
 164       return FORCE_MOVE;
 165     }
 166   }
 167
 168   return BadGuy::collision_player(player, hit);
 169 }
 170
 171 HitResponse
 172 MrIceBlock::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 173 {
 174   switch(ice_state) {
 175     case ICESTATE_NORMAL:
 176       if(fabsf(hit.normal.x) > .8) {
 177         dir = dir == LEFT ? RIGHT : LEFT;
 178         sprite->set_action(dir == LEFT ? "left" : "right");
 179         physic.set_velocity_x(-physic.get_velocity_x());
 180       }
 181       return CONTINUE;
 182     case ICESTATE_FLAT:
 183       return FORCE_MOVE;
 184     case ICESTATE_KICKED:
 185       badguy.kill_fall();
 186       return FORCE_MOVE;
 187     default:
 188       assert(false);
 189   }
 190
 191   return ABORT_MOVE;
 192 }
 193
 194 bool
 195 MrIceBlock::collision_squished(Player& player)
 196 {
 197   switch(ice_state) {
 198     case ICESTATE_KICKED:
 199     case ICESTATE_NORMAL:
 200       squishcount++;
 201       if(squishcount >= MAXSQUISHES) {
 202         kill_fall();
 203         return true;
 204       }
 205
 206       set_state(ICESTATE_FLAT);
 207       break;
 208     case ICESTATE_FLAT:
 209       if(player.get_pos().x < get_pos().x) {
 210         dir = RIGHT;
 211       } else {
 212         dir = LEFT;
 213       }
 214       set_state(ICESTATE_KICKED);
 215       break;
 216     case ICESTATE_GRABBED:
 217       assert(false);
 218       break;
 219   }
 220
 221   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   if(state == ICESTATE_FLAT)
 232     flags |= FLAG_PORTABLE;
 233   else
 234     flags &= ~FLAG_PORTABLE;
 235
 236   switch(state) {
 237     case ICESTATE_NORMAL:
 238       physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
 239       sprite->set_action(dir == LEFT ? "left" : "right");
 240       break;
 241     case ICESTATE_FLAT:
 242       sound_manager->play("sounds/stomp.wav", get_pos());
 243       physic.set_velocity_x(0);
 244       physic.set_velocity_y(0);
 245
 246       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 247       flat_timer.start(4);
 248       break;
 249     case ICESTATE_KICKED:
 250       sound_manager->play("sounds/kick.wav", get_pos());
 251
 252       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 253       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 254       // we should slide above 1 block holes now...
 255       bbox.set_size(34, 31.8);
 256       break;
 257     case ICESTATE_GRABBED:
 258       flat_timer.stop();
 259       break;
 260     default:
 261       assert(false);
 262   }
 263   ice_state = state;
 264 }
 265
 266 void
 267 MrIceBlock::grab(MovingObject&, const Vector& pos, Direction dir)
 268 {
 269   movement = pos - get_pos();
 270   this->dir = dir;
 271   sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 272   set_state(ICESTATE_GRABBED);
 273   set_group(COLGROUP_DISABLED);
 274 }
 275
 276 void
 277 MrIceBlock::ungrab(MovingObject& , Direction dir)
 278 {
 279   this->dir = dir;
 280   set_state(ICESTATE_KICKED);
 281   set_group(COLGROUP_MOVING);
 282 }
 283
 284 IMPLEMENT_FACTORY(MrIceBlock, "mriceblock")