/**
 * @author       Richard Davey <rich@photonstorm.com>
 * @copyright    2018 Photon Storm Ltd.
 * @license      {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
 */
declare var Class: any;
declare var DegToRad: any;
declare var GetBoolean: any;
declare var GetValue: any;
declare var Sprite: any;
declare var TWEEN_CONST: any;
declare var Vector2: any;
/**
 * Settings for a PathFollower.
 *
 * @typedef {object} PathConfig
 *
 * @property {number} duration - The duration of the path follow.
 * @property {number} from - The start position of the path follow, between 0 and 1.
 * @property {number} to - The end position of the path follow, between 0 and 1.
 * @property {boolean} [positionOnPath=false] - Whether to position the PathFollower on the Path using its path offset.
 * @property {boolean} [rotateToPath=false] - Should the PathFollower automatically rotate to point in the direction of the Path?
 * @property {number} [rotationOffset=0] - If the PathFollower is rotating to match the Path, this value is added to the rotation value. This allows you to rotate objects to a path but control the angle of the rotation as well.
 * @property {boolean} [verticalAdjust=false] - [description]
 */
/**
 * @classdesc
 * A PathFollower Game Object.
 *
 * A PathFollower is a Sprite Game Object with some extra helpers to allow it to follow a Path automatically.
 *
 * Anything you can do with a standard Sprite can be done with this PathFollower, such as animate it, tint it,
 * scale it and so on.
 *
 * PathFollowers are bound to a single Path at any one time and can traverse the length of the Path, from start
 * to finish, forwards or backwards, or from any given point on the Path to its end. They can optionally rotate
 * to face the direction of the path, be offset from the path coordinates or rotate independently of the Path.
 *
 * @class PathFollower
 * @extends Phaser.GameObjects.Sprite
 * @memberOf Phaser.GameObjects
 * @constructor
 * @since 3.0.0
 *
 * @param {Phaser.Scene} scene - The Scene to which this PathFollower belongs.
 * @param {Phaser.Curves.Path} path - The Path this PathFollower is following. It can only follow one Path at a time.
 * @param {number} x - The horizontal position of this Game Object in the world.
 * @param {number} y - The vertical position of this Game Object in the world.
 * @param {string} texture - The key of the Texture this Game Object will use to render with, as stored in the Texture Manager.
 * @param {(string|integer)} [frame] - An optional frame from the Texture this Game Object is rendering with.
 */
declare var PathFollower: any;