Re: 2d lattice

[Nelson Minar]

>Can any of the space objects have boundaries? i.e. is there any way to 
>control the wrap-around feature of Discrete2d?

Right now Discrete2d doesn't have any wraparound code at all. If the
world size is [0,100) [0,100) and you specify a coordinate outside
that range, it will probably segfault.

We've also decided to add in new methods to the Discrete2d object like
"getObjectAtNormX: Y:" that normalize coordinates. Two normalization
methods will be provided - one for wraparound, one that raises errors
for out of bounds coordinates.

BTW, does anyone have a fast algorithm for normalizing numbers to a
range like [0, 100)? If the number is positive, then you can just do
  normX = x % 100;
but if the number is negative, that doesn't work (C doesn't specify the
modulus operator on negative numbers, sigh.) There's got to be some
trick I'm just missing.