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ch-1.pl
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/
ch-1.pl
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#!/usr/bin/env perl
use feature qw{say state signatures};
use strict;
use warnings;
use utf8;
no warnings qw{ experimental };
use constant pi => 3.14159;
my $clear = ' ';
my $filled = ' #';
my @venus;
for my $i ( 0 .. 50 ) {
for my $j ( 0 .. 40 ) {
$venus[$i][$j] = $clear;
}
}
my $maxx = 0;
for my $d ( 0 .. 360 ) {
my $r = deg2rad($d);
my $len = 11;
my $x = 19 + int xPos( $len, $r );
my $y = 19 - int yPos( $len, $r );
$venus[$x][$y] = $filled;
$maxx = $x > $maxx ? $x : $maxx;
}
for my $i ( 0 .. 10 ) {
$venus[ $maxx + $i ][19] = $filled;
$venus[ $maxx + 5 ][ 24 - $i ] = $filled;
}
for my $row (@venus) {
say join '', $row->@*;
}
sub deg2rad ($degrees) {
return ( $degrees / 180 ) * pi;
}
sub xPos ( $len = 10, $rad = 0 ) {
return $len * sin $rad;
}
sub yPos ( $len = 10, $rad = 0 ) {
return $len * cos $rad;
}