This tutorial will teach you the basics of fast particles in Flash. Learn how to create a cool particle effect using actionscript in Flash.

Before showing some examples about interpolation, I would like to explain a little bit what it does mean and why it is so important.

This is an algorithm I did for detecting the distance between parallel lines, no matters their positions or rotation.

Last weekend I had some spare time for writing an article I got in mind from long time ago, this is about Elastic Collisions, pretty much simple concept but apparently there are some people implementing it in the wrong way

This Balloon was an experiment I did playing a bit with Verlet physics (if I can catalogue the Verlet concept as part of physics).

The first time I heard about Verlets was about 10 years ago I think, when I was working on a C++ program building a dynamic animated bridge, at that time all documents and resources I found about Verlets were really confusing and at the end I gave up on it (sometimes people explain simple things in the most complicated way).

Full walkthrough on how to program the classic lens simulation.

How to simulate gravity in Flash, one gravity well per affected object. Each effect can be set independently, strength for instance.

how to work with mathematics in Flash actionscript.

Rope simulation, surge action and bubbles with collision detection. Includes source fla and .as scripts with commented code.