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phaser

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A fast, free and fun HTML5 Game Framework for Desktop and Mobile web browsers.

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/** * @author Richard Davey <rich@photonstorm.com> * @copyright 2018 Photon Storm Ltd. * @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License} */ var MATH_CONST = require('../../math/const'); var Angle = require('./Angle'); /** * [description] * * @function Phaser.Geom.Line.NormalY * @since 3.0.0 * * @param {Phaser.Geom.Line} line - [description] * * @return {number} [description] */ var NormalY = function (line) { return Math.sin(Angle(line) - MATH_CONST.TAU); }; module.exports = NormalY;