36 void remove_duplicate_physics_objects();
37 bool has_physics_object(PT(
PhysicsObject) physics_object)
const;
40 bool is_empty()
const;
41 int get_num_physics_objects()
const;
43 MAKE_SEQ(get_physics_objects, get_num_physics_objects, get_physics_object);
49 void output(std::ostream &out)
const;
50 void write(std::ostream &out,
int indent_level = 0)
const;
54 PhysicsObjects _physics_objects;