Recent changes made it evident the API needs some cleanup, as there were a lot more details exposed than there ought to be - such as methods like 'interpolatedMove', 'castAABB_xxx', etc.
Thus, this extracts out an internal namespace for physics code, that contains a solver, kinematic body (basically a wrapper to unify box collider, rigidbody, transform, and ray/shape-cast code).
Those internal components are now managed by our 'source of truth' for physics - PhysicsBody2D.
Recent changes made it evident the API needs some cleanup, as there were a lot more details exposed than there ought to be - such as methods like 'interpolatedMove', 'castAABB_xxx', etc.
Thus, this extracts out an internal namespace for physics code, that contains a solver, kinematic body (basically a wrapper to unify box collider, rigidbody, transform, and ray/shape-cast code).
Those internal components are now managed by our 'source of truth' for physics -
PhysicsBody2D.