I'm looking for information on how to detect a 2D collision for a fast-moving object.
The object may be moving faster than the frame rate of the screen, so it's position may pass right through a wall/barrier,
by the time the next frame arrives.
My application is simple, so I'm not using any physics libraries, nor do I want to.
The object is a sphere moving in a straight line, like a bullet. The domain is in 2D.