text: /**
   * @author       Richard Davey <rich@photonstorm.com>
   * @copyright    2020 Photon Storm Ltd.
   * @license      {@link https://opensource.org/licenses/MIT|MIT License}
   */
  
  var MATH_CONST = require('../../math/const');
  var Angle = require('./Angle');
  
  /**
   * Returns the x component of the normal vector of the given line.
   *
   * @function Phaser.Geom.Line.NormalX
   * @since 3.0.0
   *
   * @param {Phaser.Geom.Line} line - The Line object to get the normal value from.
   *
   * @return {number} The x component of the normal vector of the line.
   */
  var NormalX = function (line)
  {
      return Math.cos(Angle(line) - MATH_CONST.TAU);
  };
  
  module.exports = NormalX;
  