/** * @author Richard Davey * @copyright 2018 Photon Storm Ltd. * @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License} */ /** * Rotate a given point by a given angle around the origin (0, 0), in an anti-clockwise direction. * * @function Phaser.Math.Rotate * @since 3.0.0 * * @param {(Phaser.Geom.Point|object)} point - The point to be rotated. * @param {number} angle - The angle to be rotated by in an anticlockwise direction. * * @return {Phaser.Geom.Point} The given point, rotated by the given angle in an anticlockwise direction. */ var Rotate = function (point, angle) { var x = point.x; var y = point.y; point.x = (x * Math.cos(angle)) - (y * Math.sin(angle)); point.y = (x * Math.sin(angle)) + (y * Math.cos(angle)); return point; }; module.exports = Rotate;