// getVerticalDistance.js
/* global adventurejs A */

/**
 * Calculate the distance between the y of two points.
 * @method adventurejs#getVerticalDistance
 * @memberOf adventurejs
 * @param {Object} point1
 * @param {Object} point2
 * @returns {Float}
 */
adventurejs.getVerticalDistance = function Adventurejs_getVerticalDistance(
  point1,
  point2
) {
  return point2.x - point1.x;
};