pbot/modules/dice_roll.pl

#!/usr/bin/env perl

# SPDX-FileCopyrightText: 2021 Pragmatic Software <pragma78@gmail.com>
# SPDX-License-Identifier: MIT

# quick and dirty by :pragma

use Games::Dice qw/roll roll_array/;

my ($result, $rolls, $show);

if ($#ARGV < 0) {
    print "Usage: roll [-show] <dice roll>; e.g.: roll 3d6+1. To see all individual dice rolls, add -show.\n";
    die;
}

$rolls = join("", @ARGV);

if ($rolls =~ s/\s*-show\s*//) { $show = 1; }

if ($rolls =~ m/^\s*(\d+)d\d+(?:\+?-?\d+)?\s*$/) {
    if ($1 > 100) {
        print "Sorry, maximum of 100 rolls.\n";
        die;
    }
} else {
    print "Usage: roll [-show] <dice roll>; e.g.: roll 3d6+1. To see all individual dice rolls, add -show.\n";
    die;
}

if ($show) {
    my @results = roll_array $rolls;
    $result = 0;
    foreach my $n (@results) { $result += $n; }
    print "/me rolled $rolls for @results totaling $result.\n";
} else {
    $result = roll $rolls;
    print "/me rolled $rolls for $result.\n";
}