ske: Atlas module that automatically packs a list of arbitrary images.

[marekmaskarinec]

Original issue:

~mrms/tophat#42

Initial message:

[marekmaskarinec]

@skejeton are you okay with atlas.Atlas.pack? If so, please close this.

[skejeton]

Is the cell size sparse or constant?

[marekmaskarinec]

It's constant, since tophat atlases don't allow variable cell sizes anyways.

[skejeton]

I think this works for games with blocks, although I was more thinking for atlases of texture regions, where the ordering doesn't matter. I think this is good enough for now though, if anything it could be an extension, and someone can make their own packer.