/**
 * An abstract Layer for the eye.
 * @class Layer
 * @memberof jibo.rendering.animation
 * @private
 */

/**
 * A layer that represents the Eye.
 * @class EyeLayer
 * @memberof jibo.rendering.animation
 * @private
 */

/**
 * A layer of the KeysAnimation class that represents a timeline animation.
 * @class TimelineLayer
 * @memberof jibo.rendering.animation
 * @private
 * @param {Number} index The depth index.
 * @param {String} name Name of the timeline.
 * @param {jibo.rendering.animation.Timeline} timeline
 * @param {Number} startTime The starting time of this animation in seconds.
 * @param {Boolean} attach `true` if Timeline should be attached to the eye's position.
 * @param {String} offset The frame offset to start playing the animation at
 */

    /**
     * Update the position of the animation.
     * @method jibo.rendering.animation.TimelineLayer#update
     * @param {Number} time Global time of the animation in seconds.
     */

    /**
     * Destroy and don't use after this.
     * @method jibo.rendering.animation.TimelineLayer#destroy
     */

/**
 * Class used by Animation Utilities to provide playback
 * of keys files.
 * @class KeysAnimation
 * @memberof jibo.rendering.animation
 * @extends EventEmitter
 * @param {String} id The name of the keys file.
 */

    /**
     * The default framerate.
     * @name jibo.rendering.animation.KeysAnimation.FRAMERATE
     * @type {String}
     * @default 30
     */

    /**
     * Event name when animation starts.
     * @name jibo.rendering.animation.KeysAnimation.STARTED
     * @type {String}
     */

    /**
     * Event name when animation stops.
     * @name jibo.rendering.animation.KeysAnimation.STOPPED
     * @type {String}
     */

    /**
     * Event name when builder event is fired.
     * @name jibo.rendering.animation.KeysAnimation.EVENT
     * @type {String}
     */

    /**
     * Event name when animation is cancelled.
     * @name jibo.rendering.animation.KeysAnimation.CANCELLED
     * @type {String}
     */

    /**
     * Event name when audio is played.
     * @name jibo.rendering.animation.KeysAnimation.PLAY_AUDIO
     * @type {String}
     */

    /**
     * Event name when timeline is played.
     * @name jibo.rendering.animation.KeysAnimation.PLAY_TIMELINE
     * @type {String}
     */

    /**
     * Event name when timeline needs to be reordered.
     * @name jibo.rendering.animation.KeysAnimation.REORDER
     * @type {String}
     */

    /**
     * Event when the timeline is updated.
     * @name jibo.rendering.animation.KeysAnimation.UPDATE
     * @type {String}
     * @param {Number} time The current time in seconds from the start of animation.
     * @param {Object} dofValues Collection of DOF values for the current frame.
     */

    /**
     * Asset Pack name.
     * @name jibo.rendering.animation.KeysAnimation#assetPack
     * @type {String}
     */

    /**
     * Resource root for animation (defaults to root of skill).
     * @name jibo.rendering.animation.KeysAnimation#root
     * @type {String}
     */

    /**
     * Id of the keys file in the cache.
     * @name jibo.rendering.animation.KeysAnimation#id
     * @type {String}
     */

    /**
     * Name of the keys file.
     * @name jibo.rendering.animation.KeysAnimation#name
     * @type {String}
     */

    /**
     * The collection of layers for the animation.
     * @name jibo.rendering.animation.KeysAnimation#layers
     * @type {Array<Layer>}
     */

    /**
     * Token of an asset load for our keys data, so it doesn't get unloaded under us.
     * @private
     */

    /**
     * Map of Timeline objects.
     * @name jibo.rendering.animation.KeysAnimation#timelines
     * @type {Object}
     */

    /**
     * Map of PIXI.Texture objects.
     * @name jibo.rendering.animation.KeysAnimation#textures
     * @type {Object}
     */

    /**
     * Map of Sound objects.
     * @name jibo.rendering.animation.KeysAnimation#sounds
     * @type {Object}
     */

    /**
     * The animation options.
     * @name jibo.rendering.animation.KeysAnimation#options
     * @type {AnimationOptions<DOFSet>}
     * @private
     */

    /**
     * The animation instance.
     * @name jibo.rendering.animation.KeysAnimation#instance
     * @type {AnimationInstance}
     * @private
     */

    /**
     * Update the timelines.
     * @method jibo.rendering.animation.KeysAnimation#update
     * @param {Number} time Current time of this animation
     */

    /**
     * Set the keys animation data.
     * @name jibo.rendering.animation.KeysAnimation#data
     * @type {Object}
     * @private
     */

    /**
     * Sync a movieclip to the playback of the animation.
     * @method jibo.rendering.animation.KeysAnimation#playSync
     * @param {animate.MovieClip} instance The clip to play.
     * @param {String|Function} [event] The name of the event label or callback function.
     * @param {Function} [callback] Callback when play is complete.
     */

    /**
     * Destroy the keys animation completely, after the Expression Service has told us that it has finished playing.
     * @method jibo.rendering.animation.KeysAnimation#destroyWhenComplete
     */

    /**
     * Destroy the keys animation completely.
     * @method jibo.rendering.animation.KeysAnimation#destroy
     */

    /**
     * Handle animation custom events.
     * @method jibo.rendering.animation.KeysAnimation#onEvent
     * @private
     */

    /**
     * Handle playing audio within the animation.
     * @method jibo.rendering.animation.KeysAnimation#onPlayAudio
     * @private
     * @param {Object} payload
     * @param {string} payload.file
     */

    /**
     * Reorder the layers of the animation.
     * @method jibo.rendering.animation.KeysAnimation#reorder
     * @private
     */

    /**
     * Handle the playing of a timeline event.
     * @method jibo.rendering.animation.KeysAnimation#onPlayTimeline
     * @private
     * @param {object} payload
     * @param {string} payload.file
     * @param {number} payload.layerNum
     * @param {boolean} payload.attach
     * @param {string} payload.offset
     */