/**
 * @class BehaviorTree
 * @extends EventEmitter
 * @memberof jibo.bt
 * @description Object for controlling the playback of the behavior tree.
 *
 * @param {jibo.bt.Behavior} root The root behavior of the tree.
 * @param {jibo.bt.Blackboard} blackboard Reference to the global Blackboard instance.
 * @param {Object} notepad Reference to a temporary object to use.
 * @param {Object} result Reference to the tree's result.
 * @param {jibo.bt.BehaviorEmitter} emitter Reference to the behavior's emitter.
 */

    /**
     * Get the current status of the behavior tree
     * @name jibo.bt.BehaviorTree#currentStatus
     * @type {jibo.bt.Status}
     * @readOnly
     */

    /**
     * Start the behavior tree.
     * @method jibo.bt.BehaviorTree#start
     * @return {Boolean} Status result
     */

        /**
         * When behavior tree starts
         * @event jibo.bt.BehaviorTree#start
         */

    /**
     * Stop the behavior tree.
     * @method jibo.bt.BehaviorTree#stop
     * @return {Promise<void>} A promise that resolves after any asynchronous cleanup has been performed.
     */

        /**
         * When behavior tree stops
         * @event jibo.bt.BehaviorTree#stop
         */

    /**
     * Pause the behavior tree.
     * @private
     * @method jibo.bt.BehaviorTree#pause
     */

        /**
         * When behavior tree pauses
         * @event jibo.bt.BehaviorTree#pause
         */

    /**
     * Resume the behavior tree.
     * @private
     * @method jibo.bt.BehaviorTree#pause
     */

        /**
         * When behavior tree resumes
         * @event jibo.bt.BehaviorTree#unpause
         */

    /**
     * Called every frame.
     * @method jibo.bt.BehaviorTree#update
     * @returns {jibo.bt.Status} The current status of this behavior.
     */

    /**
     * Destroy and don't use after this
     * @method jibo.bt.BehaviorTree#destroy
     */

        /**
         * When behavior tree is destroyed
         * @event jibo.bt.BehaviorTree#destroy
         */

    /**
     * Stop and destroy, don't use after this
     * @method jibo.bt.BehaviorTree#stopAndDestroy
     * @return {Promise<void>} A promise that resolves after any asynchronous cleanup has been performed.
     */