mirror of
https://github.com/photonstorm/phaser
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34 lines
901 B
JavaScript
34 lines
901 B
JavaScript
/**
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* @author Richard Davey <rich@photonstorm.com>
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* @copyright 2019 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
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*/
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/**
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* Moves the element at the start of the array to the end, shifting all items in the process.
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* The "rotation" happens to the left.
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*
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* @function Phaser.Utils.Array.RotateLeft
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* @since 3.0.0
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*
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* @param {array} array - The array to shift to the left. This array is modified in place.
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* @param {integer} [total=1] - The number of times to shift the array.
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*
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* @return {*} The most recently shifted element.
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*/
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var RotateLeft = function (array, total)
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{
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if (total === undefined) { total = 1; }
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var element = null;
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for (var i = 0; i < total; i++)
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{
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element = array.shift();
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array.push(element);
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}
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return element;
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};
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module.exports = RotateLeft;
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