[Dprglist] On Behavior Trees [Was: self driving trucks and the desert]

[Rud Merriam]

BTs provide the means of changing the overall behavior from a high 
level. In one competition there were 3 main task to be performed. At the 
highest level the BT allowed all three to be stated as a simple list of 
three items with sub-trees for their specific requirements.


-73 -
*Rud Merriam K5RUD*
/Mystic Lake Software/ <http://mysticlakesoftware.com/>

On 10/28/21 2:52 PM, Murray Altheim via DPRGlist wrote:
> On 29/10/21 7:36 am, Rud Merriam via DPRGlist wrote:
>> I replied to David and included this link: [...]
>
> Hi Rud,
>
> I'm doing my own robot OS in python so I'll check out the Python code,
> and I've got the link to the Italian/Swedish paper, thanks for that.
>
> My own exploration is inspired by my readings of Brooks, Jones, and what
> I've learned from David (who has been a great help), and is a based 
> around
> an asynchronous (asyncio) message bus supporting a publish-subscribe 
> model.
>
> There is the ability to enable/disable and suppress/release any of the
> Publishers or Subscribers, plus a class of Behaviour that combines both
> a Publisher and Subscriber, so the basic foundations of subsumption are
> there but not at the level of a single or BT loop, as all of the event-
> carrying messages sent around within the system are asynchronous. I
> maintain that it's still following the basic idea of a subsumption
> architecture but implemented quite differently than others I've seen.
>
> I'm still working through the details of it but so far things are 
> working.
> A lot of effort...
>
> I'm curious about the Behaviour Tree idea because it suggests different
> patterns or sequences of behaviours for different contexts, which is
> something I've been investigating.
>
> Cheers,
>
> Murray
>
>
> ........................................................................... 
>
> Murray Altheim <murray18 at altheim dot com>                       = 
> =  ===
> http://www.altheim.com/murray/ ===  ===
> = =  ===
>     In the evening
>     The rice leaves in the garden
>     Rustle in the autumn wind
>     That blows through my reed hut.
>            -- Minamoto no Tsunenobu
>
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