roll-parser
v2.3.2
Published
Parser for classic (2d6+1), simple (2 6 1), and WoD (4d10!>6f1) dice rolls.
Downloads
597
Maintainers
Readme
Documentation
Please review the API documentation.
Install
Node:
npm install roll-parser
Then in the console or JS file:
const rollParser = require('roll-parser');
Browser:
<script src="https://unpkg.com/roll-parser/dist/roll-parser.js"></script>
Minified version:
<script src="https://unpkg.com/roll-parser/dist/roll-parser.min.js"></script>
Then access all functions from rollParser
object.
Console:
$ roll-parser [options] [<rolls>]
Run roll-parser --help
for more details.
Usage
const { parse, roll, parseAndRoll, Roll } = require('roll-parser');
// `parse()` function parses any notation and returns `Roll` or `WodRoll` object
//=> { dice: 6, count: 4, modifier: 1 }
const parsedRoll = parse('4d6+1');
// `Roll` or `WodRoll` can be stringified
//=> '4d6+1'
const rollNotation = parsedRoll.toString();
//=> { notation: '4d6+1', value: 16, rolls: [3, 1, 6, 5] }
const result1 = roll(parsedRoll);
//=> { notation: '2d20-3', value: 23, rolls: [11, 15] }
const result2 = roll(new Roll(20, 2, -3));
// Can also accept plain objects
//=> { notation: '2d10>7', value: 1, rolls: [4, 8] }
const result3 = roll({dice: 10, count: 2, success: 7});
// `parseAndRoll()` function can parse any notation and then roll the dice
// Any invalid arguments, except `null` or `undefined`, will be parsed as default `Roll`
//=> { notation: '3d10!>8f1', value: 2, rolls: [3, 10, 7, 9] }
const result4 = parseAndRoll('3d10!>8f1');
//=> '(3d10!>8f1) 2 [3,10,7,9]'
const resultNotation = result4.toString();
Specific parsers can be used.
Classic (D&D):
const {
parseClassicRoll,
rollClassic,
parseAndRollClassic,
Roll
} = require('roll-parser');
//=> { dice: 10, count: 1, modifier: 0 }
const parsedRoll = parseClassicRoll('d10');
//=> { notation: 'd10', value: 7, rolls: [7] }
const result1 = rollClassic(parsedRoll);
//=> { notation: '2d20', value: 26, rolls: [11, 15] }
const result2 = rollClassic(new Roll(20, 2));
//=> { notation: '4d10+1', value: 22, rolls: [4, 6, 2, 9] }
const result3 = rollClassic({ dice: 10, count: 4, modifier: 1 });
//=> { notation: '3d6', value: 15, rolls: [6, 6, 3] }
const result4 = parseAndRollClassic('3d6');
WoD (World of Darkness):
const {
parseWodRoll,
rollWod,
parseAndRollWod,
WodRoll
} = require('roll-parser');
//=> { dice: 10, count: 1, again: false, success: 6, fail: 0 }
const parsedRoll = parseWodRoll('d10>6');
// Returns notation, number of success rolls and list of all dice rolls
//=> { notation: 'd10', value: 1, rolls: [7] }
const result1 = rollWod(parsedRoll);
//=> { notation: '4d10>6f1', value: 1, rolls: [4, 10, 5, 2] }
const result2 = rollWod(new WodRoll(10, 4, false, 6, 1));
//=> { notation: '4d10!>8f1', value: 22, rolls: [1, 8, 5, 10, 10, 4] }
const result3 = rollWod({ dice: 10, count: 2, again: true, success: 8, fail: 1 });
//=> { notation: '4d10>7f4', value: 1, rolls: [6, 3, 8, 4] }
const result4 = parseAndRollWod('4d10>7f4');
Simple (D&D, space-separated):
const { parseSimpleRoll, parseAndRollSimple } = require('roll-parser');
//=> { dice: 10, count: 1, modifier: 0 }
const parsedRoll = parseSimpleRoll('10');
//=> { notation: '4d10-1', value: 23, rolls: [3, 6, 8, 7] }
const result = parseAndRollSimple('4 10 -1');
Random number generator can be used to roll the dice.
const { random } = require('roll-parser');
//=> 84 - d100-like roll
random(100);
//=> 7 - d10-like roll
random(10);
//=> [2, 5, 2, 6] - 4d6-like roll
[...Array(4)].map(() => random(6));
Even so the parse&roll functions uses checks to convert non-standard objects to Roll
or WodRoll
, explicit conversion can be used in some cases:
const { convert } = require('roll-parser');
//=> new Roll(undefined, 4, -3)
convert({ count: 4, modifier: -3 });
//=> new WodRoll(10, 6, true, undefined, 2)
convert({ dice: 10, count: 6, again: true, fail: 2 });
Releases
Please review the changelog.
Contributing
♥ roll-parser and want to get involved? Please, check the guide first.