src/badguy/snowsnail.cpp

   1 //  $Id: snowsnail.cpp 2738 2005-10-08 08:53:46Z wansti $
   2 //
   3 //  SuperTux
   4 //  Copyright (C) 2005 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
  19 //  02111-1307, USA.
  20
  21 #include <config.h>
  22
  23 #include "snowsnail.hpp"
  24 #include "object/block.hpp"
  25
  26 static const float WALKSPEED = 80;
  27 static const float KICKSPEED = 500;
  28 static const int MAXSQUISHES = 10;
  29
  30 SnowSnail::SnowSnail(const lisp::Lisp& reader)
  31   : ice_state(ICESTATE_NORMAL), squishcount(0)
  32 {
  33   reader.get("x", start_position.x);
  34   reader.get("y", start_position.y);
  35   bbox.set_size(31.8, 31.8);
  36   sprite = sprite_manager->create("images/creatures/snowsnail/snowsnail.sprite");
  37   set_direction = false;
  38 }
  39
  40 SnowSnail::SnowSnail(float pos_x, float pos_y, Direction d)
  41   : ice_state(ICESTATE_NORMAL), squishcount(0)
  42 {
  43   start_position.x = pos_x;
  44   start_position.y = pos_y;
  45   bbox.set_size(31.8, 31.8);
  46   sprite = sprite_manager->create("images/creatures/snowsnail/snowsnail.sprite");
  47   set_direction = true;
  48   initial_direction = d;
  49 }
  50
  51 void
  52 SnowSnail::write(lisp::Writer& writer)
  53 {
  54   writer.start_list("mriceblock");
  55
  56   writer.write_float("x", start_position.x);
  57   writer.write_float("y", start_position.y);
  58
  59   writer.end_list("snowsnail");
  60 }
  61
  62 void
  63 SnowSnail::activate()
  64 {
  65   if (set_direction) {dir = initial_direction;}
  66   physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  67   sprite->set_action(dir == LEFT ? "left" : "right");
  68 }
  69
  70 void
  71 SnowSnail::active_update(float elapsed_time)
  72 {
  73   if((ice_state != ICESTATE_KICKED) && flat_timer.started()) {
  74     sprite->set_fps(64 - 15 * flat_timer.get_timegone());
  75   }
  76   if(ice_state == ICESTATE_FLAT && flat_timer.check()) {
  77     ice_state = ICESTATE_NORMAL;
  78     physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  79     sprite->set_action(dir == LEFT ? "left" : "right");
  80   }
  81   BadGuy::active_update(elapsed_time);
  82 }
  83
  84 HitResponse
  85 SnowSnail::collision_solid(GameObject& object, const CollisionHit& hit)
  86 {
  87   if(fabsf(hit.normal.y) > .5) { // floor or roof
  88     physic.set_velocity_y(0);
  89     return CONTINUE;
  90   }
  91   // hit left or right
  92   switch(ice_state) {
  93     case ICESTATE_NORMAL:
  94       dir = dir == LEFT ? RIGHT : LEFT;
  95       sprite->set_action(dir == LEFT ? "left" : "right");
  96       physic.set_velocity_x(-physic.get_velocity_x());
  97       break;
  98     case ICESTATE_KICKED: {
  99       BonusBlock* bonusblock = dynamic_cast<BonusBlock*> (&object);
 100       if(bonusblock) {
 101         bonusblock->try_open();
 102       }
 103       Brick* brick = dynamic_cast<Brick*> (&object);
 104       if(brick) {
 105         brick->try_break();
 106       }
 107
 108       dir = dir == LEFT ? RIGHT : LEFT;
 109       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 110       sprite->set_fps(64);
 111       physic.set_velocity_x(-physic.get_velocity_x());
 112       sound_manager->play("sounds/iceblock_bump.wav", get_pos());
 113       break;
 114     }
 115     case ICESTATE_FLAT:
 116       physic.set_velocity_x(0);
 117       break;
 118   }
 119
 120   return CONTINUE;
 121 }
 122
 123 HitResponse
 124 SnowSnail::collision_badguy(BadGuy& badguy, const CollisionHit& hit)
 125 {
 126   switch(ice_state) {
 127     case ICESTATE_NORMAL:
 128       if(fabsf(hit.normal.x) > .8) {
 129         dir = dir == LEFT ? RIGHT : LEFT;
 130         sprite->set_action(dir == LEFT ? "left" : "right");
 131         physic.set_velocity_x(-physic.get_velocity_x());
 132       }
 133       return CONTINUE;
 134     case ICESTATE_FLAT:
 135       return FORCE_MOVE;
 136     case ICESTATE_KICKED:
 137       badguy.kill_fall();
 138       return FORCE_MOVE;
 139     default:
 140       assert(false);
 141   }
 142
 143   return ABORT_MOVE;
 144 }
 145
 146 bool
 147 SnowSnail::collision_squished(Player& player)
 148 {
 149   switch(ice_state) {
 150     case ICESTATE_KICKED:
 151     case ICESTATE_NORMAL:
 152       squishcount++;
 153       if(squishcount >= MAXSQUISHES) {
 154         kill_fall();
 155         return true;
 156       }
 157
 158       // flatten
 159       sound_manager->play("sounds/stomp.wav", get_pos());
 160       physic.set_velocity_x(0);
 161       physic.set_velocity_y(0);
 162
 163       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 164       sprite->set_fps(64);
 165       flat_timer.start(4);
 166       ice_state = ICESTATE_FLAT;
 167       break;
 168     case ICESTATE_FLAT:
 169       // kick
 170       sound_manager->play("sounds/kick.wav", get_pos());
 171
 172       if(player.get_pos().x < get_pos().x) {
 173         dir = RIGHT;
 174       } else {
 175         dir = LEFT;
 176       }
 177       physic.set_velocity_x(dir == LEFT ? -KICKSPEED : KICKSPEED);
 178       sprite->set_action(dir == LEFT ? "flat-left" : "flat-right");
 179       sprite->set_fps(64);
 180       ice_state = ICESTATE_KICKED;
 181       break;
 182   }
 183
 184   player.bounce(*this);
 185   return true;
 186 }
 187
 188 IMPLEMENT_FACTORY(SnowSnail, "snowsnail")