text: /**
   * @author       Richard Davey <rich@photonstorm.com>
   * @copyright    2020 Photon Storm Ltd.
   * @license      {@link https://opensource.org/licenses/MIT|MIT License}
   */
  
  var Point = require('./Point');
  
  /**
   * Calculates the vector projection of `pointA` onto the nonzero `pointB`. This is the
   * orthogonal projection of `pointA` onto a straight line paralle to `pointB`.
   *
   * @function Phaser.Geom.Point.ProjectUnit
   * @since 3.0.0
   *
   * @generic {Phaser.Geom.Point} O - [out,$return]
   *
   * @param {Phaser.Geom.Point} pointA - Point A, to be projected onto Point B. Must be a normalized point with a magnitude of 1.
   * @param {Phaser.Geom.Point} pointB - Point B, to have Point A projected upon it.
   * @param {Phaser.Geom.Point} [out] - The Point object to store the position in. If not given, a new Point instance is created.
   *
   * @return {Phaser.Geom.Point} A unit Point object holding the coordinates of the vector projection of `pointA` onto `pointB`.
   */
  var ProjectUnit = function (pointA, pointB, out)
  {
      if (out === undefined) { out = new Point(); }
  
      var amt = ((pointA.x * pointB.x) + (pointA.y * pointB.y));
  
      if (amt !== 0)
      {
          out.x = amt * pointB.x;
          out.y = amt * pointB.y;
      }
  
      return out;
  };
  
  module.exports = ProjectUnit;
  