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 BouncingSnowball::BouncingSnowball(float pos_x, float pos_y)
  17 {
  18    start_position.x = pos_x;
  19    start_position.y = pos_y;
  20    bbox.set_size(32, 32);
  21    sprite = sprite_manager->create("bouncingsnowball");
  22 }
  23
  24 void
  25 BouncingSnowball::write(LispWriter& writer)
  26 {
  27   writer.start_list("bouncingsnowball");
  28
  29   writer.write_float("x", get_pos().x);
  30   writer.write_float("y", get_pos().y);
  31
  32   writer.end_list("bouncingsnowball");
  33 }
  34
  35 void
  36 BouncingSnowball::activate()
  37 {
  38   physic.set_velocity_x(dir == LEFT ? -WALKSPEED : WALKSPEED);
  39   sprite->set_action(dir == LEFT ? "left" : "right");
  40 }
  41
  42 bool
  43 BouncingSnowball::collision_squished(Player& player)
  44 {
  45   sprite->set_action("squished");
  46   kill_squished(player);
  47   return true;
  48 }
  49
  50 HitResponse
  51 BouncingSnowball::collision_solid(GameObject& , const CollisionHit& hit)
  52 {
  53   if(hit.normal.y < -.5) { // hit floor
  54     physic.set_velocity_y(JUMPSPEED);
  55   } else if(hit.normal.y > .5) { // bumped on roof
  56     physic.set_velocity_y(0);
  57   } else { // left or right collision
  58     dir = dir == LEFT ? RIGHT : LEFT;
  59     sprite->set_action(dir == LEFT ? "left" : "right");
  60     physic.set_velocity_x(-physic.get_velocity_x());
  61   }
  62
  63   return CONTINUE;
  64 }
  65