An absence from technology turned out to be less amenable to hacking than hoped; even with the presence of an iPhone, concocting half-baked hacks to twitpic from a Dorset field was less appealing in practice than in theory. Apologies, therefore, for the break in hackpact programming. Service hereby resumes.

Today's hack is a small Processing sketch to simulate objects moving around on a spring-like arc around a central point. It's a simple implementation of Hooke's law plus trigonometry, but creates pleasantly natural-looking dynamics which are useful, in my case, to spin camera angles around a point with some damping.

This is more rapid work-in-progress for PEAL, appearing at the Sonic Arts Expo in Leeds very shortly.