/**
 * @author       Vladislav Forsh <vlad@robowhale.com>
 * @copyright    2021 RoboWhale
 * @license      {@link https://opensource.org/licenses/MIT|MIT License}
 */

/**
 * Calculate the median of the given values. The values are sorted and the middle value is returned.
 * In case of an even number of values, the average of the two middle values is returned.
 *
 * @function Phaser.Math.Median
 * @since 3.54.0
 *
 * @param {number[]} values - The values to average.
 *
 * @return {number} The median value.
 */
var Median = function (values)
{
    var valuesNum = values.length;
    if (valuesNum === 0)
    {
        return 0;
    }

    values.sort(function (a, b) { return a - b; });

    var halfIndex = Math.floor(valuesNum / 2);

    return valuesNum % 2 === 0
        ? (values[halfIndex] + values[halfIndex - 1]) / 2
        : values[halfIndex];
};

module.exports = Median;