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01a13871de
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.
48 lines
2.6 KiB
Diff
48 lines
2.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Fri, 18 Mar 2016 20:16:03 -0400
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Subject: [PATCH] Add World Util Methods
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Methods that can be used for other patches to help improve logic.
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index e235531d694e3e904042f2d42641c1ffbecfd5a3..d935fbdbee8b20f0efa09438b7d4c4a0da93abcc 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -216,7 +216,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
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public final LevelStorageSource.LevelStorageAccess convertable;
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public final UUID uuid;
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- public LevelChunk getChunkIfLoaded(int x, int z) {
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+ @Override public LevelChunk getChunkIfLoaded(int x, int z) { // Paper - this was added in world too but keeping here for NMS ABI
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return this.chunkSource.getChunk(x, z, false);
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}
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diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
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index 65fd3a3c1f0a55d034e6f91c4f222e6454e7166c..62c54a0c789ca460ec29b0c653f5abd113736fb9 100644
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--- a/src/main/java/net/minecraft/world/level/Level.java
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+++ b/src/main/java/net/minecraft/world/level/Level.java
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@@ -333,6 +333,22 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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return chunk == null ? null : chunk.getFluidState(blockposition);
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}
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+ public final boolean isLoadedAndInBounds(BlockPos blockposition) { // Paper - final for inline
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+ return getWorldBorder().isWithinBounds(blockposition) && getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null;
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+ }
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+
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+ public @Nullable LevelChunk getChunkIfLoaded(int x, int z) { // Overridden in WorldServer for ABI compat which has final
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+ return ((ServerLevel) this).getChunkSource().getChunkAtIfLoadedImmediately(x, z);
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+ }
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+ public final @Nullable LevelChunk getChunkIfLoaded(BlockPos blockposition) {
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+ return ((ServerLevel) this).getChunkSource().getChunkAtIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4);
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+ }
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+
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+ // reduces need to do isLoaded before getType
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+ public final @Nullable BlockState getBlockStateIfLoadedAndInBounds(BlockPos blockposition) {
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+ return getWorldBorder().isWithinBounds(blockposition) ? getBlockStateIfLoaded(blockposition) : null;
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+ }
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+
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@Override
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public final ChunkAccess getChunk(int chunkX, int chunkZ, ChunkStatus leastStatus, boolean create) { // Paper - final for inline
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// Paper end
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