Hello Dr.Subtilis and welcome to the monastery and welcome to your son to the wonderful world of Perl!

> My 9-year old got completely hooked into Perl

Firts I should say: lucky you and him :)

> Now it would be desirable if he could go into graphics and user interfaces

In this situation for GUI I would opt for Prima: I never used it it but I have look at it several times with a growing interest. It is modern and under active developping but a mature project.

Tk is old and has many quirks but still works well: can I prodly point you to my Tartaglia-s-triangle, picwoodpecker, Stone-Jam and Discipulus-15-puzzle?

Stone-Jam is a simple game and maybe my code ( the core is under 200 lines ) is not that bad to understand.

For graphics I used GD in the above picwoodpeaker and in tk-jepg-custom-rotator

GD is not that easy to learn ad use but he can start under your guidance.

My best wishes to your son (..and you)!

L*

PS I have also a fun project where graphic is rendered in terminal: the demo of the project is usable but the overall design is flawed and I have no more will to correct it: Game-Term 

git clone  https://github.com/LorenzoTa/Game-Term
cd Game-Term
perl -I ./lib ./demo/00-start.pl

[download]

There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

In reply to Re: Advice on learning Perl and graphics by Discipulus
in thread Advice on learning Perl and graphics by Dr. Subtilis

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.