d20 0.2.0+test-github-actions-1


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D20 is a Dart library for RPG dice rolling. Supports standard notation (like "2d12", "d6+5" and "2d20-L").

Installation #

add the following to your pubspec.yaml file:

  d20: <1.0.0

then run:

pub get

or with flutter:

flutter packages get

Usage #

import 'package:d20/d20.dart';

void main() {
  final D20 d20 = D20();

One can also get (probably) useful information of roll results:

import 'package:d20/d20.dart';
import 'package:d20/roll_statistics.dart';

void main() {
  final D20 d20 = D20();
  final RollStatistics stats = d20.rollWithStatistics('2d8+5+5d6');

Supported notation #

The standard dice notation will be parsed, such as 2d8+4.

L and H subtraction #

When a -L or -H follows a roll, as in 2d20-L, the lowest (or highest) roll of the sequence will be subtracted from the result.

Operators #

You can also use mathematical operators, such as 1d6*3 or 10d4/d6; or even 10 * sin(d20), though I'm not sure why you'd need that.

Percentile dice (d%) #

You can also use use the d% notation instead of d100.


0.2.0 #

  • Add rollWithStatistics to D20, with (probably) useful information of roll results.

0.1.1 #

  • Obvious conditional optimization.

0.1.0 #

  • Add support to -L/-H subtractions.

0.0.3 #

  • Add support to d% notation.

0.0.2 #

  • Initial release. Support standard dice notation and arithmetic operations.


import 'package:d20/d20.dart';

void main() {
  final D20 d20 = D20();

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  d20: ^0.2.0+test-github-actions-1

2. Install it

You can install packages from the command line:

with pub:

$ pub get

with Flutter:

$ flutter pub get

Alternatively, your editor might support pub get or flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:d20/d20.dart';
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Learn more about scoring.

We analyzed this package on Feb 13, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.7.1
  • pana: 0.13.5

Maintenance suggestions

Package is getting outdated. (-15.07 points)

The package was last published 60 weeks ago.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0 <3.0.0
math_expressions ^1.0.0 1.1.1
Transitive dependencies
vector_math 2.0.8
Dev dependencies
test ^1.5.1+1