Patch documentation to come
Issues with the old system that are fixed now:
- World generation does not scale with cpu cores effectively.
- Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps.
- Unreliable prioritisation of chunk gen/load calls that block the main thread.
- Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved.
- Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal.
- Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles.
The above list is not complete. The patch documentation will complete it.
New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil.
Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft.
The old legacy chunk system patches have been moved to the removed folder in case we need them again.
Co-authored-by: Shane Freeder <theboyetronic@gmail.com>
Also, restores un/loading worlds mid tick. This will not be officially supported API contract that such a routine is safe, and these restrictions may be restored in the future.
Upstream has released updates that appear 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:
c7c11188 SPIGOT-2620: Add Player#sendBlockChanges()
f63d2b44 Improve annotation test on parameters
3372e7b4 SPIGOT-1244, SPIGOT-6860, SPIGOT-6874: Various Javadoc and formatting fixes
a1e8a9ab PR-793: Ignore .checkstyle file generated by Eclipse IDE
CraftBukkit Changes:
c2c39089e SPIGOT-2620: Add Player#sendBlockChanges()
8209158db PR-1113: Ignore .checkstyle file generated by Eclipse IDE
Spigot Changes:
4aa5ead2 Rebuild patches
* Make WorldCreator#keepSpawnLoaded return the WorldCreator (Fixes#8321)
Thought that I fixed this before push/merge, apparently not, hence, fix
the return type and add mitigation for this.
* Fix patch/build
* Rebuild patches
Upstream has released updates that appear 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:
9ae3f10f SPIGOT-3842: Add Player#fireworkBoost() and expand Firework API
48c0c547 PR-786: Add methods to get sounds from entities
CraftBukkit Changes:
5cc9c022a SPIGOT-7152: Handle hand item changing during air interact event
4ffa1acf6 SPIGOT-7154: Players get kicked when interacting with a conversation
4daa21123 SPIGOT-3842: Add Player#fireworkBoost() and expand Firework API
e5d6a9bbf PR-1100: Add methods to get sounds from entities
b7e9f1c8b SPIGOT-7146: Reduce use of Material switch in ItemMeta
Spigot Changes:
4c157bb4 Rebuild patches
Logging into an unloaded world isn't going to end well.
This may fix the cases of people seeing errors about regionfiles
being closed, as loading chunks in an unloaded world will cause this
as the regionfile cache is closed but not cleared.
Upstream has released updates that appear 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:
0b32cbaa PR-782: ThrownPotion now extends ThrowableProjectile
474238ca SPIGOT-7138: Can't retrieve pixel color from map
CraftBukkit Changes:
cdef8fc72 PR-1097: CraftThrownPotion now extends CraftThrowableProjectile
419010b13 SPIGOT-7112: Mobs added 1.17 and after do not create an EntityTargetEvent properly
e71426201 SPIGOT-7079: Allays don't call EntityTargetEvent on ground items
f80adb8b9 SPIGOT-7138: Can't retrieve pixel color from map
Reduce the impact from EAR on hopper minecart based unloaders by making them immune to
EAR while pulling objects. The EAR is still active outside misc activation range when
the hopper minecart is idle, keeping lag low.
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
CraftBukkit Changes:
ead719a65 SPIGOT-7136: Cancelling PlayerInteractEntityEvent with the Allay desyncs
8468e167e SPIGOT-7137: StructureGrowEvent isFromBonemeal and getPlayer have incorrect values
d45057c59 SPIGOT-7089: Crash when command blocks attempt to load worlds
Spigot Changes:
450dcaa8 Rebuild patches
Vanilla uses a Random instance which is not thread safe inside of the
constructor for ServerLoginPacketListenerImpl, this is an issue because
instances of that class are created on the network worker threads, which
means that there is a potential (which we have reports confirming) that
multiple users logging on could trip this
in 1.19, mojang made it so that teleporations validate that an awaiting pos was
set in the server when teleporting, thus we need to ensure that this is set when
sending the player pos, otherwise the player will be kicked when the client sends
back the aknowledgement
