package TextPrinter;
use strict;
use warnings;
use Term::ANSIColor;
{
my %colours = (
'black' => [
map { color($_,'on_black') }
'dark yellow','dark green','dark blue'
],
'white' => [
map { color($_,'on_white') }
'green', 'blue', 'yellow'
],
);
my $strip_length = 0;
sub rotate {
my ($arr) = @_;
my $el = shift @$arr;
push @$arr, $el;
return;
}
sub next_colour {
my ($which) = @_;
if ($strip_length < 1) {
$strip_length = 1+int(rand(7));
rotate($colours{$which});
}
--$strip_length;
return $colours{$which}->[0];
}
}
sub draw_cell {
print next_colour(shift eq '*' ? 'black' : 'white'),
chr(65+int(rand(26)));
}
{
my $white = color('black','on_white');
my $reset = color('reset');
sub draw_row {
my ($row,$scale)=@_;
$scale||=1;
print $white,' 'x(3*$scale);
for my $cell (@$row) {
draw_cell($cell) for 1..$scale;
}
print $white,' 'x(3*$scale);
print $reset,"\n";
}
sub draw_empty_row {
my ($row,$scale)=@_;
$scale||=1;
print $white,' 'x((6+@$row)*$scale),$reset,"\n" for 1..(3*$scale);
}
}
sub draw_whole {
my ($arr,$scale)=@_;
$scale||=1;
draw_empty_row($arr->[0],$scale);
for my $row (@$arr) {
draw_row($row,$scale) for 1..$scale;
}
draw_empty_row($arr->[0],$scale);
}
1;
