Re: [Swarm-Support] Grid2d Object placement issues

[Paul Johnson]

Williamson, Robert J wrote:
> Hey there,
> 
> So here is another question, though my last question is still open for
> answers. 
> 
> I also need to remove
> agents from the lattice as they die, but I have not figured out how to
> do that yet. I tried over writing their last place in the lattice with
> null, but that did not seem to do the trick. I figure if I can figure
> out how to remove an Object then I can just do that before moving and my
> phantom-agent problem should be solved.
> 

Look at Heatbugs example. The standard way to "remove" an object
is to put a nil on that spot.

 [world putObject: nil atX: x Y: y];

In the opinion model, I use a grid that allows several agents per cell and so 
moving agents is a bit more complicated.
But with a standard model like you seem to have, I expect nil is your friend
.

HTH


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Paul E. Johnson                       email: address@hidden
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