Gambling\Tech\FisherYatesShuffle

Complexity

Total Complexity

2

Size/Duplication

Total Lines	19
Duplicated Lines	0 %

Importance

Changes	2
Bugs	0	Features	1

1 Method

Rating	Name	Duplication	Size	Complexity
A	__invoke()	0	12	2

<?php

declare(strict_types=1);

namespace Gambling\Tech;

use Gambling\Tech\Exception\GamblingTechException;

/**
 * The Fisher Yates shuffle, read more about it here
 * https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle
 */
class FisherYatesShuffle
{
    /**
     * @param array $array
     * @return array
     * @throws GamblingTechException
     */
    public function __invoke(array $array): array
    {
        $count = count($array);

        for ($i = 0; $i < $count - 1; $i++) {
            $r = Random::getInteger(0, $count - 1);
            $tmp = $array[$i];
            $array[$i] = $array[$r];
            $array[$r] = $tmp;
        }

        return $array;
    }
}