Paolo Amoroso • 6/27/2026

Preparing GravityLoops for simulation

This article details recent progress on GravityLoops, a gravity simulator built in Interlisp and LOOPS. The key addition is the UniverseDisplay class, which specializes Window to animate simulated body motions in a window, using an offscreen buffer for flicker-free rendering. Methods like ShowBuffer, ClearDisplay, and Body.Update are implemented to compute positions and draw bodies. The next step is completing Universe.Simulate to run the simulation loop with force calculations and updates. This is a technical update about software development in a niche Lisp environment, relevant to IT/technology.

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#Loop #Interlisp #Bitmap