mirror of
https://github.com/photonstorm/phaser
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29 lines
855 B
JavaScript
29 lines
855 B
JavaScript
/**
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* @author Richard Davey <rich@phaser.io>
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* @copyright 2013-2024 Phaser Studio Inc.
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* @license {@link https://opensource.org/licenses/MIT|MIT License}
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*/
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/**
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* Rotate a given point by a given angle around the origin (0, 0), in an anti-clockwise direction.
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*
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* @function Phaser.Math.Rotate
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* @since 3.0.0
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*
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* @param {(Phaser.Geom.Point|object)} point - The point to be rotated.
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* @param {number} angle - The angle to be rotated by in an anticlockwise direction.
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*
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* @return {Phaser.Geom.Point} The given point, rotated by the given angle in an anticlockwise direction.
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*/
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var Rotate = function (point, angle)
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{
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var x = point.x;
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var y = point.y;
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point.x = (x * Math.cos(angle)) - (y * Math.sin(angle));
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point.y = (x * Math.sin(angle)) + (y * Math.cos(angle));
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return point;
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};
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module.exports = Rotate;
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