Re: DblBuffer2d

[David Aliaga]

Hi all

I was making more thinking on this subject. Please
correct me if I am wrong:

1) updateLattice swaps the pointers, AND ALSO make a
exact copy of the newly updated lattice on the new
newLattice. That means that after calling
updateLattice both lattices look the same.

2)fillWithObject nil works on the newLattice

3)To put a third agent in a random position checking
not to overwrite the position of the other ones there
are two possibilities:

 3.1) put the 2 agents, update the Lattice, then check
with the position of agent 3 and copy agent 3(in the
newLattice) BUT NOT agent 1 and 2 because they are
already there (after the updateLattice) then update
again that means two updates per time and hide it in a
method
 
  3,2) What I did. Subclass DblBuffer2d and made the
following new method:

-getObjectOnNLatticeAtX: (unsigned)x Y:(unsigned)y
{
 return *discrete2dSiteAt(newLattice,offsets,x,y);
}

and use it to test the positions. Is it safe? (My life
depends on it!)

4)To initialize I fill with nil then put the agents on
a random fasion like (3.2) and updateLattice

David

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