#!/usr/bin/perl
use warnings;
use strict;
use Tk;

my $mw=tkinit;
$mw->geometry('+300+300');

$mw->protocol('WM_DELETE_WINDOW' => sub {
           my $x= int rand (600);
           my $y= int rand (600);
           $mw->geometry("+$x+$y");
           });

$mw->bind("<Key>", [  sub { if($_[1] eq 'Escape'){exit} } , Ev('K')  ]
+ );

$mw->fontCreate('big',
   -family=>'arial',
  -weight=>'bold',
  -size=>int(-24*24/14));

my $c=$mw->Canvas(-width=>300,-height=>200,-bg=>'white')->pack;

my $x = 50;
my $y = 100;

foreach my $l (map { chr } (0x41,0x70,0x72,0x69,0x6c,0x20,0x46,0x6f,0x
+6f,0x6c,0x73)){

my $t1 = $c->create('text',$x,$y,
              -anchor=>'w',
              -font => 'big',
              -text=>$l,
              -tags=>['z']);

(undef,undef,$x,undef)= $c->bbox($t1);
}

my @ra = qw(-1 5 9 10 7 1 0 -8 -2 -10 6 -4 4 -5 8 -9 3 -6 2 -7 -3); 
$mw->repeat(100,sub{
          my (@i)= $c->find('withtag','z');
          foreach(@i){
          push (@ra,shift(@ra));
          $c->move($_,$ra[0],$ra[1]);
       }  
      if( $ra[0] == -4 ){$mw->after(1000)}
});

$mw->repeat(500,sub{
           my $x= int rand (600);
           my $y= int rand (600);
           $mw->geometry("+$x+$y");
});

MainLoop;