src/badguy/snowsnail.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 "snowsnail.hpp"
  23 #include "object/block.hpp"
  24
  25 static const float WALKSPEED = 80;
  26 static const float KICKSPEED = 500;
  27 static const int MAXSQUISHES = 10;
  28
  29 SnowSnail::SnowSnail(const lisp::Lisp& reader)
  30   : ice_state(ICESTATE_NORMAL), squishcount(0)
  31 {
  32   reader.get("x", start_position.x);
  33   reader.get("y", start_position.y);
  34   bbox.set_size(31.8, 31.8);
  35   sprite = sprite_manager->create("images/creatures/snowsnail/snowsnail.sprite");
  36   set_direction = false;
  37 }
  38
  39 SnowSnail::SnowSnail(float pos_x, float pos_y, Direction d)
  40   : ice_state(ICESTATE_NORMAL), squishcount(0)
  41 {
  42   start_position.x = pos_x;
  43   start_position.y = pos_y;
  44   bbox.set_size(31.8, 31.8);
  45   sprite = sprite_manager->create("images/creatures/snowsnail/snowsnail.sprite");
  46   set_direction = true;
  47   initial_direction = d;
  48 }
  49
  50 void
  51 SnowSnail::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("snowsnail");
  59 }
  60
  61 void
  62 SnowSnail::activate()
  63 {
  64   if (set_direction) {dir = initial_direction;}
  65   physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  66   sprite->set_action(dir == LEFT ? "left" : "right");
  67 }
  68
  69 void
  70 SnowSnail::active_update(float elapsed_time)
  71 {
  72   if((ice_state != ICESTATE_KICKED) && flat_timer.started()) {
  73     sprite->set_fps(64 - 15 * flat_timer.get_timegone());
  74   }
  75   if(ice_state == ICESTATE_FLAT && flat_timer.check()) {
  76     ice_state = ICESTATE_NORMAL;
  77     physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  78     sprite->set_action(dir == LEFT ? "left" : "right");
  79   }
  80   BadGuy::active_update(elapsed_time);
  81 }
  82
  83 HitResponse
  84 SnowSnail::collision_solid(GameObject& object, const CollisionHit& hit)
  85 {
  86   if(fabsf(hit.normal.y) > .5) { // floor or roof
  87     physic.set_velocity_y(0);
  88     return CONTINUE;
  89   }
  90   // hit left or right
  91   switch(ice_state) {
  92     case ICESTATE_NORMAL:
  93       dir = dir == LEFT ? RIGHT : LEFT;
  94       sprite->set_action(dir == LEFT ? "left" : "right");
  95       physic.set_velocity_x(-physic.get_velocity_x());
  96       break;
  97     case ICESTATE_KICKED: {
  98       BonusBlock* bonusblock = dynamic_cast<BonusBlock*> (&object);
  99       if(bonusblock) {
 100         bonusblock->try_open();
 101       }
 102       Brick* brick = dynamic_cast<Brick*> (&object);
 103       if(brick) {
 104         brick->try_break();
 105       }
 106
 107       dir = dir == LEFT ? RIGHT : LEFT;
 108       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 109       sprite->set_fps(64);
 110       physic.set_velocity_x(-physic.get_velocity_x());
 111       sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 112       break;
 113     }
 114     case ICESTATE_FLAT:
 115       physic.set_velocity_x(0);
 116       break;
 117   }
 118
 119   return CONTINUE;
 120 }
 121
 122 HitResponse
 123 SnowSnail::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 124 {
 125   switch(ice_state) {
 126     case ICESTATE_NORMAL:
 127       if(fabsf(hit.normal.x) > .8) {
 128         dir = dir == LEFT ? RIGHT : LEFT;
 129         sprite->set_action(dir == LEFT ? "left" : "right");
 130         physic.set_velocity_x(-physic.get_velocity_x());
 131       }
 132       return CONTINUE;
 133     case ICESTATE_FLAT:
 134       return FORCE_MOVE;
 135     case ICESTATE_KICKED:
 136       badguy.kill_fall();
 137       return FORCE_MOVE;
 138     default:
 139       assert(false);
 140   }
 141
 142   return ABORT_MOVE;
 143 }
 144
 145 bool
 146 SnowSnail::collision_squished(Player& player)
 147 {
 148   switch(ice_state) {
 149     case ICESTATE_KICKED:
 150     case ICESTATE_NORMAL:
 151       squishcount++;
 152       if(squishcount >= MAXSQUISHES) {
 153         kill_fall();
 154         return true;
 155       }
 156
 157       // flatten
 158       sound_manager->play("sounds/stomp.wav", get_pos());
 159       physic.set_velocity_x(0);
 160       physic.set_velocity_y(0);
 161
 162       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 163       sprite->set_fps(64);
 164       flat_timer.start(4);
 165       ice_state = ICESTATE_FLAT;
 166       break;
 167     case ICESTATE_FLAT:
 168       // kick
 169       sound_manager->play("sounds/kick.wav", get_pos());
 170
 171       if(player.get_pos().x < get_pos().x) {
 172         dir = RIGHT;
 173       } else {
 174         dir = LEFT;
 175       }
 176       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 177       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 178       sprite->set_fps(64);
 179       ice_state = ICESTATE_KICKED;
 180       break;
 181   }
 182
 183   player.bounce(*this);
 184   return true;
 185 }
 186
 187 IMPLEMENT_FACTORY(SnowSnail, "snowsnail")