void write(lisp::Writer& writer);
HitResponse collision_solid(GameObject& other, const CollisionHit& hit);
HitResponse collision_player(Player& player, const CollisionHit& hit);
+ HitResponse collision_badguy(BadGuy& badguy, const CollisionHit& hit);
void active_action(float elapsed_time);
void kill_fall();
+ void explode();
private:
int state;