PHP Metronomme

Metronome.php

<?php

/**
 * Class Metronome
 *
 * @see Based on original Java code located at http://rosettacode.org/wiki/Metronome#Java
 *
 * @author Heverton Coneglian <[email protected]>
 */
class Metronome
{

    /**
     * @var float
     */
    private $bpm;

    /**
     * @var int
     */
    private $measure;

    /**
     * @var int
     */
    private $counter;

    /**
     * Metronome constructor.
     *
     * @param float $bpm
     * @param int $measure
     */
    public function __construct($bpm, $measure)
    {
        $this->bpm = $bpm;
        $this->measure = $measure;
    }

    /**
     * Starts the metronome
     *
     * @return void
     */
    public function start()
    {
        while (true) {
            usleep(1000000 * (60 / $this->bpm));
            $this->counter++;
            if ($this->counter % $this->measure == 0) {
                echo "TICK\n";
            } else {
                echo "TOCK\n";
            }
        }
    }
}

$metro = new Metronome(120, 4);
$metro->start();