text: /**
   * [description]
   *
   * @function Phaser.Geom.Line.PerpSlope
   * @since 3.0.0
   *
   * @param {Phaser.Geom.Line} line - [description]
   *
   * @return {number} [description]
   */
  var PerpSlope = function (line)
  {
      return -((line.x2 - line.x1) / (line.y2 - line.y1));
  };
  
  module.exports = PerpSlope;
  