Re: grid2d suggestion

[Marcus G. Daniels]

>>>>> "PJ" == Paul E Johnson <address@hidden> writes:

PJ> I found this handy in a subclass of Grid2d I have been
PJ> using. Could it be installed in Grid2d?

The main problem with -passThrough:[::] is that people will use it
(reasonably) expecting that the space can be used as a dense
collection.  But it isn't implemented that way.  As the space gets
bigger in x and y, -passThrough: will get slower as the square.

One way to fix this would be to have a setObjectCollection: method
like Object2dDisplay that tracked putObject:atX:Y: messages.  However,
depending on whether or not the population was stable, could result in
another n^2 slowdown unless the collections and agents were set up
with MemberLoc.
 
A better way to fix this would be to track the objects with an AVL
tree, so that objects with internal MemberLoc links were not
necessary.


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