The exactly same idea is long-ago implemented in Tk (which is part of Tcl/Tk), see it on tcl/tk wiki page at Tk Game Pack

the single file tkgamepack.kit is run with "tclkitsh", so this is run with 2 files, but actually single-file executable is also possible.

This is not Perl, but Tcl could be very tightly tied to Perl with a Tcl-Tk CPAN module.

To say from a little different perspective - I, personally, write perl+Tcl/Tk code in a such way: 

$interp->Eval(<<'EOS');
# here goes Tcl/Tk code to construct GUI interface
EOS
# and here goes perl/Tk text to use my widgets
$text->insert('end','text');

[download]
so if I would implement your idea I would heavily base on said tkgamepack.kit file.

update: fix 2 typos

In reply to Re: Perl Simple Games Pack by vkon
in thread Perl Simple Games Pack by sir_lichtkind

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