I plan to make an elastic cord object which can wrap around a generic set of movable points. The cord will exert forces on every point. The cord will not be segmented or "hang" in a curve due to gravity. The cord might remain frictionless due to the difficulty in programming "resting contact"...:-/
My project will be an asteroids type game, so the lib might not be completely suited for 2d side-scroller platform games w/ gravity.
I recommend flatland for that, though you must use their data objects.
Btw, this is just a code example to supplement the lib manual, not a real project.
cutting the spring around a polygon (like a ninja rope "cuts to half" if it hits the ground...
Sorry, I don't understand. Could you please explain that another way?