src/badguy/haywire.cpp

   1 //  SuperTux
   2 //  Copyright (C) 2006 Matthias Braun <matze@braunis.de>
   3 //  Copyright (C) 2010 Florian Forster <supertux at octo.it>
   4 //
   5 //  This program is free software: you can redistribute it and/or modify
   6 //  it under the terms of the GNU General Public License as published by
   7 //  the Free Software Foundation, either version 3 of the License, or
   8 //  (at your option) any later version.
   9 //
  10 //  This program is distributed in the hope that it will be useful,
  11 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 //  GNU General Public License for more details.
  14 //
  15 //  You should have received a copy of the GNU General Public License
  16 //  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 #include "audio/sound_manager.hpp"
  19 #include "badguy/bomb.hpp"
  20 #include "badguy/haywire.hpp"
  21 #include "object/explosion.hpp"
  22 #include "object/player.hpp"
  23 #include "sprite/sprite.hpp"
  24 #include "sprite/sprite_manager.hpp"
  25 #include "supertux/object_factory.hpp"
  26 #include "supertux/sector.hpp"
  27 #include "util/reader.hpp"
  28
  29 #define TIME_EXPLOSION 5.0
  30 #define TIME_STUNNED   0.5
  31
  32 Haywire::Haywire(const Reader& reader) :
  33   WalkingBadguy(reader, "images/creatures/haywire/haywire.sprite", "left", "right"),
  34   is_exploding(false),
  35   time_until_explosion(0.0f),
  36   is_stunned(false),
  37   time_stunned(0.0f)
  38 {
  39   walk_speed = 80;
  40   max_drop_height = 16;
  41
  42   //Prevent stutter when Tux jumps on Mr Bomb
  43   sound_manager->preload("sounds/explosion.wav");
  44
  45   //Check if we need another sprite
  46   if( !reader.get( "sprite", sprite_name ) ){
  47     return;
  48   }
  49   if( sprite_name == "" ){
  50     sprite_name = "images/creatures/haywire/haywire.sprite";
  51     return;
  52   }
  53   //Replace sprite
  54   sprite = sprite_manager->create( sprite_name );
  55 }
  56
  57 HitResponse
  58 Haywire::collision(GameObject& object, const CollisionHit& hit)
  59 {
  60   return WalkingBadguy::collision(object, hit);
  61 }
  62
  63 HitResponse
  64 Haywire::collision_player(Player& player, const CollisionHit& hit)
  65 {
  66   return WalkingBadguy::collision_player(player, hit);
  67 }
  68
  69 bool
  70 Haywire::collision_squished(GameObject& object)
  71 {
  72   Player* player = dynamic_cast<Player*>(&object);
  73   if (player && player->is_invincible()) {
  74     player->bounce (*this);
  75     kill_fall();
  76     return true;
  77   }
  78
  79   if (is_stunned) {
  80     if (player)
  81       player->bounce (*this);
  82     return true;
  83   }
  84
  85   if(WalkingBadguy::is_frozen()) {
  86     WalkingBadguy::unfreeze();
  87   }
  88
  89   if (!is_exploding) {
  90     set_action ((dir == LEFT) ? "ticking-left" : "ticking-right", /* loops = */ -1);
  91     walk_left_action = "ticking-left";
  92     walk_right_action = "ticking-right";
  93     set_walk_speed (160);
  94     time_until_explosion = TIME_EXPLOSION;
  95     is_exploding = true;
  96
  97     ticking.reset(sound_manager->create_sound_source("sounds/fizz.wav"));
  98     ticking->set_position(get_pos());
  99     ticking->set_looping(true);
 100     ticking->set_reference_distance(32);
 101     ticking->play();
 102     grunting.reset(sound_manager->create_sound_source("sounds/grunts.ogg"));
 103     grunting->set_position(get_pos());
 104     grunting->set_looping(true);
 105     grunting->set_reference_distance(32);
 106     grunting->play();
 107   }
 108
 109   time_stunned = TIME_STUNNED;
 110   is_stunned = true;
 111   physic.set_velocity_x (0.0);
 112   physic.set_acceleration_x (0.0);
 113
 114   if (player)
 115     player->bounce (*this);
 116
 117   return true;
 118 }
 119
 120 void
 121 Haywire::active_update(float elapsed_time)
 122 {
 123   if (is_exploding) {
 124     ticking->set_position(get_pos());
 125     grunting->set_position(get_pos());
 126     if (elapsed_time >= time_until_explosion) {
 127       kill_fall ();
 128       return;
 129     }
 130     else
 131       time_until_explosion -= elapsed_time;
 132   }
 133
 134   if (is_stunned) {
 135     if (time_stunned > elapsed_time) {
 136       time_stunned -= elapsed_time;
 137       return;
 138     }
 139     else { /* if (time_stunned <= elapsed_time) */
 140       elapsed_time -= time_stunned;
 141       time_stunned = 0.0;
 142       is_stunned = false;
 143     }
 144   }
 145
 146   if (is_exploding) {
 147     Player *p = this->get_nearest_player ();
 148     float target_velocity = 0.0;
 149
 150     if (p) {
 151       /* Player is on the right */
 152       if (p->get_pos ().x > this->get_pos ().x)
 153         target_velocity = walk_speed;
 154       else /* player in on the left */
 155         target_velocity = (-1.0) * walk_speed;
 156     } /* if (player) */
 157
 158     WalkingBadguy::active_update(elapsed_time, target_velocity);
 159   }
 160   else {
 161     WalkingBadguy::active_update(elapsed_time);
 162   }
 163 }
 164
 165 void
 166 Haywire::kill_fall()
 167 {
 168   if(is_exploding) {
 169     ticking->stop();
 170     grunting->stop();
 171   }
 172   if(is_valid()) {
 173     remove_me();
 174     Explosion* explosion = new Explosion(get_bbox().get_middle());
 175     Sector::current()->add_object(explosion);
 176   }
 177
 178   run_dead_script();
 179 }
 180
 181 void
 182 Haywire::freeze()
 183 {
 184   WalkingBadguy::freeze();
 185   sprite->set_action(dir == LEFT ? "iced-left" : "iced-right");
 186 }
 187
 188 bool
 189 Haywire::is_freezable() const
 190 {
 191   return true;
 192 }
 193
 194 /* vim: set sw=2 sts=2 et : */
 195 /* EOF */