Sierpinski's Triangle - Wx (dirty)

[PodMaster]

Here it is in Wx, real dirty (currently wxWidgets doesn't have a nice canvas library) . Someone should try an OpenGL approach :)

use strict;
use Wx qw( :everything );
use Wx::Event 'EVT_PAINT';

use vars::i qw( $width 4 );
use vars::i qw( $height 4 );

use vars::i '@iterative_set' => 
(

    sub {
        my @pt = ( 400, 50 );
        return( ( $pt[0] + $_[0] ) / 2, ( $pt[1] + $_[1] ) / 2 );
    },
    sub {
        my @pt = ( 50, 400 );
        return( ( $pt[0] + $_[0] ) / 2, ( $pt[1] + $_[1] ) / 2 );
    },
    sub {
        my @pt = ( 750, 400 );
        return( ( $pt[0] + $_[0] ) / 2, ( $pt[1] + $_[1] ) / 2 );
    },

);



## cause I don't wanna subclass anything just yet
*Wx::App::OnInit = sub { 
Wx::InitAllImageHandlers();
    my $frame = Wx::Frame::->new(undef, -1, 'And Justice For All');
    $frame->Show(1);
    EVT_PAINT( $frame, sub {
        my($s,$e)=@_;
        my $dc = Wx::PaintDC->new($s); # must create, to stop crap
        $dc->SetBackgroundMode( wxTRANSPARENT );
        $dc->SetTextForeground( Wx::Colour->newRGB(169,169,69));

            # start coordinates
            my $x    = 40;
            my $y    = 400;
            my $iter = 0;

            # weed out transients
            while( $iter++ != 100 ) {

                ( $x, $y ) = $iterative_set[ int rand 3 ]->( $x, $y );

            }

            $iter = 0;
            while( $iter++ < 10000 ) {

                ( $x, $y ) = $iterative_set[ int rand 3 ]->( $x, $y );
                $dc->DrawRectangle( int $x, int $y, $width,$height);

            }



        return 0;
    });
    return 1;
};

Wx::App->new->MainLoop; # we're off'n'runnin'now