cravay

The demos run live in the browser. You can download and edit them. The code is pretty straightforward and well commented.

I love these kinds of articles but I also think there is a slight mistake. In my opinion it should say "upper-left is at array index zero" instead of "lower-left is at array index zero".

I don't think it matters if the randomness is not applied symmetrically and the fire moves slightly to the left. I also can't comprehend the part about the framebuffer being initiated yellow and not black.