Part1 of this tutorial focuses on programming random rain. All aspects of this rain can be easily changed by altering a few variables in Actionscript. This includes density, Impact, Speed, Distance, Color, Rotation, Alpha, X and Y Start and Finish points, Easing Types, and outside forces (like Wind)

Part2 builds off of the initial setup above, but explores limitless possibilities for more animations.

Change the artwork, and then make a few slight changes to values in the code, and thousands of different animations can be created in a few short steps. Part 2 focuses on making these four variations below

Download: