DiceBag

Create dice roll results from standard dice notation

A Simple Example

<?php
use DiceBag\DiceBag;

$diceBag = DiceBag::factory('4d6dl1');

echo $diceBag;

Installation

Prerequisites

DiceBag Requires PHP 7.1 or greater.

Installation Through Composer

Installation through composer is simple, just require it through the command line with the following command:

composer require porthou/dicebag

Using DiceBag

DiceBag is designed to allow you to create results with as little as possible configuration, whilst being as random as possible. By default it will use PHP7's default CSRNG generation using random_int.

If a custom RNG is desired then it can be passed in to the DiceBag::factory() method as the second parameter. This will be passed through to any instances needing the RNG.

<?php
use DiceBag\DiceBag;
use DiceBag\Randomization\MersenneTwister;

$randomizationEngine = new MersenneTwister();

$diceBag = DiceBag::factory('10f', $randomizationEngine);

Dice Types

There are 3 types of "Dice"

Standard Dice NdX

This rolls N standard Numeric dice with X sides per die. If N is not specified it is assumed to be 1

Examples

• d6 Rolls a 6 Sided Die.
• 4d6 Rolls 4 6 Sided Dice.
• d20 Rolls a 20 Sided Die.

Fate Dice NdF

This rolls N Fate (also known as fudge) dice. If N is not specified it is assumed to be 1. Fate dies can roll -1, 0 or 1.

Examples

• f Rolls a Fate die.
• 4f Rolls 4 Fate die.

Fixed Modifiers X

Fixed modifiers are most useful when combined with other dice formats. They add (or subtract) a fixed value

Examples

• 2d6+10 Rolls 2 6 sided dice and adds 10 to the result.

Dice Pool Modifiers

Dice pool modifiers are used to change the results of a dice pool.

Keep Highest khX

This keeps the Highest X results from the dice pool.

Examples

• 4d6kh3 Rolls 4 d6 and keeps the highest 3.

Drop Lowest dlX

This drops the Lowest X results from the dice pool.

Examples

• 4d6dl1 Rolls 4 d6 and drops the lowest result.

Keep Lowest klX

This Keeps the Lowest X results from the dice pool.

Examples

• 4d6kl1 Rolls 4 d6 and keeps the lowest result.

Drop Highest dhX

This Drops the Highest X results from the dice pool.

Examples

• 4d6dh1 Rolls 4 d6 and drops the highest result.

Exploding Dice !cN

Exploding Dice add an additional dice to the pool if the maximum is rolled. These additional dice may also explode.

If only N is specified then the dice will explode on the value specified.

c is a conditional, which can be either <, > or unspecified. When specified with N dice will explode when the value is either greater than or equal to, or less than or equal to, the value specified.

Examples

• 4d6! Rolls 4 d6 and and any results of 6 will add an additional die to the pool.
• 4d6!1 Rolls 4 d6 and and any results of 1 will add an additional die to the pool.
• 4d6!>5 Rolls 4 d6 and and any results of 5 or greater will add an additional die to the pool.
• 4d6!<2 Rolls 4 d6 and and any results of 2 or less will add an additional die to the pool.