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erlang_behaviour_trees

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An implementation of behaviour trees in erlang.

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erlang_behaviour_trees src bt_engine runners runner.erl
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src/bt_engine/runners/runner.erl 

-module(runner).

-include("../bt_node_behaviours/nodes.hrl").

-export([

  run/3,

  preempt/3

]).



-spec run(

  Node :: task() | sequence() | selector() | decorator(),

  BB :: blackboard(), 

  Event :: event()) -> {Status :: status(), NewNode :: task(), NewBB :: blackboard()}.

run(Node, BB, Event) when is_record(Node, sequence) ->

  run_sequence:run(Node, BB, Event);

run(Node, BB, Event) when is_record(Node, decorator) ->

  run_decorator:run(Node, BB, Event);

run(Node, BB, Event) when is_record(Node, task) ->

  run_task:run(Node, BB, Event).



-spec preempt(

  Node :: term(), 

  BB :: blackboard(), 

  ShouldCleanBB :: boolean()) -> {NewNode :: term(), NewBB :: blackboard()}.

preempt(Node, BB, ShouldCleanBB) when is_record(Node, sequence) ->

  run_sequence:preempt(Node, BB, ShouldCleanBB);

preempt(Node, BB, ShouldCleanBB) when is_record(Node, decorator) ->

  run_decorator:preempt(Node, BB, ShouldCleanBB);

preempt(Node, BB, ShouldCleanBB) when is_record(Node, task) ->

  run_task:preempt(Node, BB, ShouldCleanBB).