/**
 * Manage the tweens.
 * Uses `ease npm` for all ease functions.
 * For ease types, refer to [ease APIs]{@link https://www.npmjs.com/package/eases}.
 * @class TweenManager
 * @memberof jibo.face
 */

    /**
     * Collection of tweens.
     * @private
     * @name jibo.face.TweenManager._tweens
     * @type {Array<jibo.face.Tween>}
     */

    /**
     * Collection of tweens to pool (recycle).
     * @private
     * @name jibo.face.TweenManager._tweens
     * @type {Array<jibo.face.Tween>}
     */

    /**
     * Add a tween to play.
     * @method jibo.face.TweenManager.play
     * @param {Object} target The object to tween.
     * @param {Object} options Options for tweening.
     * @param {Object} options.to The values to tween the object to.
     * @param {Object} [options.from] The initial values to set the object to.
     * @param {String} [options.ease='linear'] The ease function to use.
     * @param {int} [options.delay=0] The delay to start.
     * @param {int} [options.duration=500] Length of tween, in millseconds.
     * @param {Function} [complete] Function callback wehen completed
     * @return {jibo.face.Tween} Instance of new tween.
     */

    /**
     * Play a set of tweens.
     * @method jibo.face.TweenManager.playSet
     * @param {Array<Object>} targets The list of items to tween.
     * @param {Object} options Options for tweening.
     * @param {Number} options.to The value to tween to.
     * @param {Number} [options.from=0] The initial value to tween.
     * @param {String} [options.ease='linear'] The ease function to use.
     * @param {int} [options.delay=0] The delay to start.
     * @param {int} [options.duration=500] Length of tween, in millseconds.
     * @param {Object|Function} [setOptions] Either the set options for complete function
     * @param {Number} [setOptions.focus=0] Index to lead with if `setOptions.delay` is set.
     * @param {Boolean} [setOptions.focusIsLast=false] `true` if `setOptions.focus` is first in.
     * @param {Number} [setOptions.delay=0] Milliseconds delay between items.
     * @param {Function} [setOptions.complete] Function callback wehen completed
     * @param {Boolean} [setOptions.completeOnFirst=false] If 'true' fires callback after first tween completes, if `false` fires after all tween complete
     */

    /**
     * Stop a tween by target or stop all tweens.
     * @method jibo.face.TweenManager.stop
     * @param {Object} [target] The tween target, if non is specified, all tweens removed.
     * @return {Boolean} If the tween was deleted.
     */

    /**
     * Stop all tweens whose targets return true against provided method.
     * @method jibo.face.TweenManager.stopCheck
     * @param {Function} check - Function must take a tween target and return a boolean,
     * passing an additional Object to test against is optional.
     * @param {any} [against] - Object to test against in check method.
     */

    /**
     * Pause or resume all tweens.
     * @name jibo.face.TweenManager.paused
     * @type {Boolean}
     */

    /**
     * Update the tweens.
     * @method jibo.face.TweenManager.update
     * @param {int} elapsed Time elapsed in Milliseconds since the last update.
     */

    /**
     * Recycle the tween.
     * @method jibo.face.TweenManager._pool
     * @private
     * @param {jibo.face.Tween} tween Tween to re-pool
     */

    /**
     * Recycle the tween.
     * @method jibo.face.TweenManager._create
     * @private
     * @return {jibo.face.Tween} Tween to use
     */