erlang_behaviour_trees

An OTP application

Build

$ rebar3 compile

Running a BT

• Run shell rebar3 shell
• Start dummy butler navigator and rack location service: dummy_butler_server_sup:start_link(1, "002.002", <<"1">>, "007.008").
  • Initializes locations for butler 1 and rack <<”1”>>
  • Use butler_functions:get_butler_status(1) and butler_functions:get_rack_location(<<"1">>) to get their locations
  • Use their teleport functions to place them (see code). Can get pids through gproc.
• Create BT: {ok, Pid} = bt_engine:start_link("src/samples/trees/rackloop.yml", "rackloop_with_count", [{"BId", 1},{"Count", 2}]).
  • requires yml file name, root node name, proplist of params.
• Tick BT: bt_engine:tick(Pid, some_event)
  • Will have to tick it manually till success is achieved. It will return running while running and then success. Only if something irrecoverable happens it will (should) return failure.