Ruby and 2D graphics

I know this topic is rather old but I was struggling with the same issue
and since I came up with a solution, I decided to provide it here.

You can find instructions for installing the runtime environment for
Linux platform commented in the beginning of the source code.

My sample code on pastebin:

All of my related codes in my github repo (sdl_testX.rb):

Tom R. wrote:

Exactly what is thread hijacking? Never heard of it before

It might be when one hits “Reply To”, changes the Subject line, and
changes the
contents.

Some forum readers (often referred to as “real” ones) can sort posts by
thread,
even as the Subject changes, relying on secret headers that link posts
for this
purpose.

To ask a new question, hit Post or New Message, not Reply To.