Not entirely. c_move() gives you information about the point of contact, so you can use that to control collisions. there are some simple algorithms you can find online using the velocity (distance moved between frames, point of impact, and surface normals) to add some pretty good "bounce" physics. Obviously you'll want to tone down the bouncing with some friction (multiple the new velocity by a smaller number).

Collisions are really the only benifit you're looking for in a physics engine, and you're going to run into a lot of problems with using physics in a large open space.