src/badguy/bouncing_snowball.cpp

   1 #include <config.h>
   2
   3 #include "bouncing_snowball.h"
   4
   5 static const float JUMPSPEED = 450;
   6 static const float WALKSPEED = 80;
   7
   8 BouncingSnowball::BouncingSnowball(const lisp::Lisp& reader)
   9 {
  10   reader.get("x", start_position.x);
  11   reader.get("y", start_position.y);
  12   bbox.set_size(31.8, 31.8);
  13   sprite = sprite_manager->create("bouncingsnowball");
  14   set_direction = false;
  15 }
  16
  17 BouncingSnowball::BouncingSnowball(float pos_x, float pos_y, Direction d)
  18 {
  19    start_position.x = pos_x;
  20    start_position.y = pos_y;
  21    bbox.set_size(31.8, 31.8);
  22    sprite = sprite_manager->create("bouncingsnowball");
  23    set_direction = true;
  24    initial_direction = d;
  25 }
  26
  27 void
  28 BouncingSnowball::write(lisp::Writer& writer)
  29 {
  30   writer.start_list("bouncingsnowball");
  31
  32   writer.write_float("x", get_pos().x);
  33   writer.write_float("y", get_pos().y);
  34
  35   writer.end_list("bouncingsnowball");
  36 }
  37
  38 void
  39 BouncingSnowball::activate()
  40 {
  41   if (set_direction) {dir = initial_direction;}
  42   physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  43   sprite->set_action(dir == LEFT ? "left" : "right");
  44 }
  45
  46 bool
  47 BouncingSnowball::collision_squished(Player& player)
  48 {
  49   sprite->set_action("squished");
  50   kill_squished(player);
  51   return true;
  52 }
  53
  54 HitResponse
  55 BouncingSnowball::collision_solid(GameObject& , const CollisionHit& hit)
  56 {
  57   if(hit.normal.y < -.5) { // hit floor
  58     physic.set_velocity_y(JUMPSPEED);
  59   } else if(hit.normal.y > .5) { // bumped on roof
  60     physic.set_velocity_y(0);
  61   } else { // left or right collision
  62     dir = dir == LEFT ? RIGHT : LEFT;
  63     sprite->set_action(dir == LEFT ? "left" : "right");
  64     physic.set_velocity_x(-physic.get_velocity_x());
  65   }
  66
  67   return CONTINUE;
  68 }
  69
  70 HitResponse
  71 BouncingSnowball::collision_badguy(BadGuy& , const CollisionHit& hit)
  72 {
  73   if(fabsf(hit.normal.x) > .8) { // left/right?
  74     dir = dir == LEFT ? RIGHT : LEFT;
  75     sprite->set_action(dir == LEFT ? "left" : "right");
  76     physic.set_velocity_x(-physic.get_velocity_x());
  77   } else if(hit.normal.y < -.8) { // grounf
  78     physic.set_velocity_y(JUMPSPEED);
  79   }
  80
  81   return CONTINUE;
  82 }
  83