Developers!: You will need to clean up your work/Minecraft/1.13.2 folder for this
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
b850a822 SPIGOT-4526: Add conversion time API for Zombie & subclasses
CraftBukkit Changes:
38cf676e SPIGOT-4534: CreatureSpawnEvent not being called for CHUNK_GEN
b446cb5d SPIGOT-4527: Fix sponges with waterlogged blocks
6ec8ea5c SPIGOT-4526: Add conversion time API for Zombie & subclasses
c64fe508 Mappings Update
a3c2ec03 Fix missing ServerListPingEvent call for legacy pings
Spigot Changes:
1dc156ce Rebuild patches
140f654d Mappings Update
Portion of diff was dropped in the mappings update commit.
Also remove the option to remove invalid statistics. The server will
automatically do this now as of... 1.13?, our option wasn't even doing anything.
Note to other developers: This commit may require you to wipe your
workspace as a result of the changes to BD.
--- work/BuildData
Submodule work/BuildData f527a8ff..d56672db:
> Mappings Update
--- work/Bukkit
Submodule work/Bukkit 0c1d258bb..db06c80d7:
> Add list of entities to EntityTransformEvent
> SPIGOT-4347: Add API to allow storing arbitrary values on ItemStacks
---work/CraftBukkit
Submodule work/CraftBukkit 6a398ac44..068dab5be:
> Enable optional source JAR shading via profile shadeSourcesJar
> Use ImmutableList rather than AbstractList for CraftMetaBook
> Fix setRecipes(List) not setting Knowledge Book recipes.
> Mappings Update
> Add list of entities to EntityTransformEvent & move die calls
> SPIGOT-4347: Add API to allow storing arbitrary values on ItemStacks
> Add Vanilla help to default permissions
--- work/Spigot
Submodule work/Spigot a1f2566f6..e769fe4d9:
> Mappings Update
> Rebuild patches
Applied a "Only run this when the blocks are different" to
a place, that apparently must be called even with the same
block but different other data I guess.
This was causing oddness with light data.
1) Removed "Regen" mode of Dupe UUID resolver, forced safe.
Some servers who updated before we had safe mode added still had this value.
There's really no reason to keep this mode, as we've seen that vanilla
triggers this often and 99.9999999% of cases will be an actual duplicate
that needs to be deleted.
2) Made Vanilla Debug messages about dupe UUIDs and dupe uuid resolve messages
only show up if the debug.entities flag is on. This will stop server owners
from panicing from seeing these logs, and stop opening bug reports on this,
only for us to tell you "don't worry about it".
3) Avoid adding entities to world that are already added to world.
This can be triggered by anything that causes an entity to be added
to the world during the chunk load process, such as chunk conversions.
Issue #1544 was a case of this.
4) Removed debug warning about ExpiringMap.
Nothing more I know to do about this anyways. We recover from it,
stop warning to reduce noise of issues to us.
This should greatly improve performance by using a No Op lock
while on the main thread.
Vanilla always had a write lock on write operations, but we added
a Read Lock during Async Chunks to make concurrent writes non fatal
for Async Chunks.
This means we added on a bunch of over head to all chunk read operations.
This corrects that, as well as disabling the write lock while on main thread.
It is a general rule that you do not touch a chunk async once it is loaded
into the world, as we never had locks on the chunk before 1.13 even.
So once we are on main, we don't expect concurrent access to begin with,
so we don't need the write locks either.
light calculations repeatedly looks up the same chunk while going
down on the Y access. Pass the chunk to it to skip many round trips
to the map lookup process.
while the gains arent as big since we have last access cache, it
should hopefully avoid many callstacks of depth and improve inlining,
as well as avoids entering a synchronized code block.
The avoiding of entering synchronized section is the main goal here.
The server triggers light recalculations even if the new block
is the same as the old block. At this time, BlockData Properties
do not impact light calculations.
So the only way light should change, is if the block itself
changes from 1 block to another.
Additionally, as of 1.13, water now only blocks 1 light level
instead of 3, meaning that light level decreasing is the same as air.
This means, transitions between water and air also do not need
to recalculate light, which saves a TON of updates caused by
fluids flowing.
