How can I create a walker with a finite trail?

[glv]

@Mikey83

I know its a float issue but would be nice to have a clean solution

Related topic:

Fade Effect - What's with the ghost?

My intention is to create a fade effect for thousands of shapes on the canvas (They appear, and then fade into blackness). This is the solution I came up with, and have found other people using. void draw() { fill(0, 10); rect(0, 0, width, height); } The problem is that the shapes never fade away completely. The lower the alpha (slower the fade), the brighter the ghost that is left behind. Here’s a sample sketch that illustrates my problem. Click to mouse to create more ellipses. Can…

I did suggest using an ArrayList and provided links and a very minimal example to inspire.

:)