I can't figure this out. I mean like all the objects(lets take them as a point mass) must be equally spaced from each. The surrounding nearest point masses from each point mass must be equally separated from that point mass. Square grid doesn't work as 4 out of the 8 closest neighbours are separated from the center diagonally, which is longer than the other 4 that are separated horizontally and vertically. I was thinking grid whereby the squares are replaced by circles by I can't seems to figure out. Is there such a thing? Something like this except the circles are connected and not separated as shown above.