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behavior3

2.0.0
2.0.1 2.0.0

Behavior3 runtime library for Erlang (Behavior Trees for Erlang)

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behavior3 src action Wait.erl
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src/action/Wait.erl 

-module('Wait').



-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, properties = #{milliseconds := EndTime}}, BB, State) ->

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

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

        true ->

            {?BT_SUCCESS, BB, State};

        false ->

            {?BT_RUNNING, BB, State}

    end.



-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


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