Packages

behavior3

2.0.0
2.0.1 2.0.0

Behavior3 runtime library for Erlang (Behavior Trees for Erlang)

HexDocs

Current section

Files

Jump to
Readme
2 Versions
1 Dependency
Dependants
Files
Activity
behavior3 src decorator MaxTime.erl
Raw

src/decorator/MaxTime.erl 

-module('MaxTime').



-behaviour(base_node).

%%--------------------------------------------------------------------


%% include


%%--------------------------------------------------------------------


-include("behavior3.hrl").

%%--------------------------------------------------------------------


%% export API


%%--------------------------------------------------------------------


-export([open/3, tick/3, close/3]).



%%--------------------------------------------------------------------


%% API functions


%%--------------------------------------------------------------------


-spec open(TreeNode :: tree_node(), BB :: blackboard(), State :: term()) -> {UpBB :: blackboard(), UpState :: term()}.

open(#tree_node{id = ID}, BB, State) ->

    {blackboard:set(start_time, erlang:system_time(millisecond), ID, BB), State}.



-spec tick(TreeNode :: tree_node(), BB :: blackboard(), State :: term()) ->


    {BTStatus :: bt_status(), UpBB :: blackboard(), UpState :: term()}.

tick(#tree_node{id = ID, children = [ChildID], properties = #{max_time := MaxTime}}, BB, State) ->

    StartTime = blackboard:get(start_time, ID, BB),

    {BTStatus, BB1, State1} = base_node:execute_child(ChildID, BB, State),

    case MaxTime > erlang:system_time(millisecond) - StartTime of

        true ->

            {BTStatus, BB1, State1};

        false ->

            {?BT_FAILURE, BB1, State}

    end;

tick(_TreeNode, BB, State) ->

    {?BT_ERROR, BB, State}.



-spec close(TreeNode :: tree_node(), BB :: blackboard(), State :: term()) -> {UpBB :: blackboard(), UpState :: term()}.

close(#tree_node{id = ID}, BB, State) ->

    {blackboard:remove(start_time, ID, BB), State}.



%%--------------------------------------------------------------------


%% Internal functions


%%--------------------------------------------------------------------