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(LispReader& reader)
   9 {
  10   reader.read_float("x", start_position.x);
  11   reader.read_float("y", start_position.y);
  12   bbox.set_size(32, 32);
  13   sprite = sprite_manager->create("bouncingsnowball");
  14 }
  15
  16 void
  17 BouncingSnowball::write(LispWriter& writer)
  18 {
  19   writer.start_list("bouncingsnowball");
  20
  21   writer.write_float("x", get_pos().x);
  22   writer.write_float("y", get_pos().y);
  23
  24   writer.end_list("bouncingsnowball");
  25 }
  26
  27 void
  28 BouncingSnowball::activate()
  29 {
  30   physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  31   sprite->set_action(dir == LEFT ? "left" : "right");
  32 }
  33
  34 bool
  35 BouncingSnowball::collision_squished(Player& player)
  36 {
  37   sprite->set_action("squished");
  38   kill_squished(player);
  39   return true;
  40 }
  41
  42 HitResponse
  43 BouncingSnowball::collision_solid(GameObject& , const CollisionHit& hit)
  44 {
  45   if(hit.normal.y < -.5) { // hit floor
  46     physic.set_velocity_y(JUMPSPEED);
  47   } else if(hit.normal.y > .5) { // bumped on roof
  48     physic.set_velocity_y(0);
  49   } else { // left or right collision
  50     dir = dir == LEFT ? RIGHT : LEFT;
  51     sprite->set_action(dir == LEFT ? "left" : "right");
  52     physic.set_velocity_x(-physic.get_velocity_x());
  53   }
  54
  55   return CONTINUE;
  56 }
  57