Previously, textures that couldn't be found the first time around
would not have this fact cached, so we'd run through the whole
slow path of find_file with each blockid and data entry.
This is what caused the chests texture generation function to take
almost 12 seconds on my system, as it is looking for "normal.png"
that hasn't existed in Minecraft textures for ages.
Shoving the exception, if one is encountered, into the cache, and
then re-raising it if we load it from the texture cache brings this
number down to about 2 seconds. That's six times as fast!
Concerns issue #1604.
We can try each jar in descending order of versions until we actually
find one that works. This fixes#1328.
Future work might move the "if self.jar is not None" higher up in the
function so that we don't keep re-checking the overviewer dir and texture
path for files that we will then not use at all for some reason.
Somebody reported that genPOI was throwing an exception in two
different places related to trying to read bytes as a string.
I personally could not reproduce (possibly needs some special player
names or something?) but I think this change should fix it either way.
So turns out genPOI wants to use sorted() so it can use itertools.groupby.
Python 2 somehow just... sorted objects so that groupby (which is basically
the UNIX uniq) could group them properly. Python 3 no longer does this,
so as comparison method let's just compare regiondir strings since that
gives us the desired result.
Fixes#1597.
If you're using CentOS/RHEL 6, you probably already can't run
Overviewer due to our dependency on argparse breaking python2.6
compatibility. However, if you somehow managed to get python2.7
working on CentOS 6, you now get a nice warning telling you to
finally get off your butt and use something else.
This warning can be dropped once we move to Python 3, which is why
this code was added in the first place: CentOS 6 has no Python 3
package that is still supported by upstream, not even in EPEL.
Apparently not even chunks of that data version can be relied upon
to have that flag mean anything at all, as the --forceUpgrade and
--eraseCache switches result in a world where chunks are flagged
as not being lit but seemingly do have SkyLight and BlockLight keys.
Concerns #1570.
Minecraft notes various stages of fetal development that chunks are
in, with the complete ones being "full". Previously, we'd check
against a list of states that are not full to skip a chunk, which
is obviously not future proof, and broke as Mojang updated their
possible range of values for the status field. It's better to
just bail if the status is anything other than "full".
Additionally, a key called "isLightOn" is in the chunk now. This
seemingly determines whether a chunk has been lit. We're also going
to check for this, and bail if it's not. In my tests, I have not yet
seen a single "full" chunk that does not have "isLightOn" set.
Fixes#1558.
This is a new directory added in 1.14 which contains .mca files too.
Since we scan for directories with .mca files to use as RegionSets,
and we don't know how to handle these, just skip them.
Fixes some warnings during rendering.
