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@moshen
Created December 1, 2011 16:29
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Terminal Nyancat 256 color
#!/usr/bin/env perl
use warnings;
use strict;
# Animation frames...
# Color ASCII escape sequences, gzipped and base64 encoded, because
# I thought 300 lines of animation frames was a little much.
my @frames = ( q(
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) );
use Compress::Zlib;
use MIME::Base64;
use Time::HiRes qw( usleep gettimeofday );
use Getopt::Long;
use Pod::Usage;
@frames = split("::\n", Compress::Zlib::memGunzip(decode_base64($frames[0])));
my $options = {};
GetOptions( "loop_times=i" => \$options->{loop_t},
"run_seconds=i" => \$options->{run_s},
"utf8" => \$options->{utf8},
"help" => \$options->{help}
);
if( $options->{help} ){
print_usage();
}
sub print_usage {
pod2usage( { -message => $_[0] , -exitval => 1 , -verbose => 0 } );
}
if( $options->{utf8} ){
@frames = @frames[12..23];
} else {
@frames = @frames[0..11];
}
# Loop the animation per options set
my $loopcheck;
if( $options->{loop_t} ){
$loopcheck = sub {
if( $options->{loop_t} ){
$options->{loop_t}--;
return 1;
} else {
return 0;
}
};
} elsif( $options->{run_s} ){
my $runtime = gettimeofday();
$loopcheck = sub {
if( (scalar(gettimeofday()) - $runtime) < $options->{run_s} ){
return 1;
} else {
return 0;
}
};
} else {
$loopcheck = sub {
return 1;
};
}
# Clear the screen
print "\033[2J";
# Animate!
while($loopcheck->()){
my $frame = 0;
while($frame < 12){
print "\033[0;0H"; # Jump to 0,0
print $frames[$frame++];
usleep(70000);
}
}
exit 0;
__END__
=head1 NAME
nyan - Your very own animated terminal Nyancat!
=head1 SYNOPSIS
nyan [options]
Options:
--help|-h brief help message
--loop_times|-l number of times to loop the animation
--run_seconds|-r number of seconds to run the animation
--utf8|-u use utf8 half-blocks for pixels
If no options are specified, Nyancat will loop forever.
=head1 OPTIONS
=over 8
=item --help|-h
Prints a brief help message and exits.
=item --loop_times|-l
Number of times to loop the Nyancat animation.
=item --run_seconds|-r
Number of seconds to run the Nyancat animation.
Note: This isn't exact.
=item --utf8|-u
Uses utf8 'half-block' characters to effectively double the
resolution in the terminal. May not display properly and
depends on the font used.
=back
=head1 DESCRIPTION
This is a port of nyan in the L<Image::Term256Color> perl distribution
so it can be run on it's own, without installing any perl modules.
It includes Nyancat animation frames within the script for enjoyment
on 256 color terminals.
=head1 EXAMPLES
Run it already:
nyan
=cut
@moshen
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Author

moshen commented Dec 6, 2011

For a quick nyan, try: curl https://gist.githubusercontent.com/moshen/1417991/raw/nyan.pl | perl ( or curl https://gist.githubusercontent.com/moshen/1417991/raw/nyan.pl | perl - -u for the unicode version. )

Though... that does require a lot of trust...

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