This more effectively utilizes as many cores as you tell it. It should
now spawn a new process whenever an old branch of the recursive tree
finishes, to always use as many processes as you specify.
The initial recursive call for tile generation will spawn up to 3 extra
processes to work on each quadrant. It's not perfect yet since some
quadrants may have more or less work to do, and only 4 total workers are
supported.
Also, it waits for all chunks are finished before it dives into the
tiles, to prevent it from using more resources than requested.
Re-factored the way the textures and blocks are being built. It should
be easier to understand and add new exceptions (sorta). Also fixed the
water and lava with other texture packs by putting a static water.png
and lava.png in with the code.
chunks changed.
The next time a set of tiles is generated, a series of has files will be
written along side the image files. These keep track of whether the file
has changed.
