virtual PhysicsObject * make_copy() const =0
dynamic copy.
Describes a particle that has angular characteristics (velocity, orientation).
virtual void output(std::ostream &out) const
Write a string representation of this instance to <out>.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
virtual void write(std::ostream &out, int indent=0) const
Write a string representation of this instance to <out>.
An individual, physically-modelable particle abstract base class.