/**
 * Status code for idle.
 */
export const IDLE = 0;
/**
 * Status code for success.
 */
export const SUCCESS = 1;
/**
 * Status code for failure.
 */
export const FAILURE = 2;
/**
 * Status code for running.
 */
export const RUNNING = 3;
/**
 * Status code for abort.
 */
export const ABORT = 5;
/**
 * Status code for error.
 */
export const ERROR = 9;

/**
 * Node category for a tree.
 */
export const TREE = 'tree';
/**
 * Node category for a composite.
 */
export const COMPOSITE = 'composite';
/**
 * Node category for a decorator.
 */
export const DECORATOR = 'decorator';
/**
 * Node category for an action.
 */
export const ACTION = 'action';
/**
 * Node category for a service.
 */
export const SERVICE = 'service';

/**
 * Blackboard key used for tree state.
 */
export const TREE_STATE = '$state';