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Firstly, the old methods all routed to the CompletableFuture method. However, the CF method could not guarantee that if the caller was off-main that the future would be "completed" on-main. Since the callback methods used the CF one, this meant that the callback methods did not guarantee that the callbacks were to be called on the main thread. Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb) so that the methods with the callback are guaranteed to invoke the callback on the main thread. The CF behavior remains unchanged; it may still appear to complete on main if invoked off-main. Secondly, remove the scheduleOnMain invocation in the async chunk completion. This unnecessarily delays the callback by 1 tick. Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which will load chunks within an area. This method is provided as a helper as keeping all chunks loaded within an area can be complicated to implement for plugins (due to the lacking ticket API), and is already implemented internally anyways. Fourthly, remove the ticket addition that occured with getChunkAt and getChunkAtAsync. The ticket addition may delay the unloading of the chunk unnecessarily. It also fixes a very rare timing bug where the future/callback would be completed after the chunk unloads.
45 lines
3.1 KiB
Diff
45 lines
3.1 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
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Date: Thu, 9 Dec 2021 00:08:11 -0800
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Subject: [PATCH] Fix ChunkSnapshot#isSectionEmpty(int) and optimize
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PalettedContainer copying by not using codecs
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
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index b2d85abb6c9c725955d972cd6895440849213fdf..887a17a0833064eb5701222e5fb6f5ccf9511588 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
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@@ -338,14 +338,17 @@ public class CraftChunk implements Chunk {
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PalettedContainerRO<Holder<net.minecraft.world.level.biome.Biome>>[] biome = (includeBiome || includeBiomeTempRain) ? new PalettedContainer[cs.length] : null;
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Registry<net.minecraft.world.level.biome.Biome> iregistry = this.worldServer.registryAccess().lookupOrThrow(Registries.BIOME);
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- Codec<PalettedContainerRO<Holder<net.minecraft.world.level.biome.Biome>>> biomeCodec = PalettedContainer.codecRO(iregistry.asHolderIdMap(), iregistry.holderByNameCodec(), PalettedContainer.Strategy.SECTION_BIOMES, iregistry.getOrThrow(Biomes.PLAINS));
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for (int i = 0; i < cs.length; i++) {
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- CompoundTag data = new CompoundTag();
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- data.put("block_states", SerializableChunkData.BLOCK_STATE_CODEC.encodeStart(NbtOps.INSTANCE, cs[i].getStates()).getOrThrow());
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- sectionBlockIDs[i] = SerializableChunkData.BLOCK_STATE_CODEC.parse(NbtOps.INSTANCE, data.getCompound("block_states")).getOrThrow(SerializableChunkData.ChunkReadException::new);
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- sectionEmpty[i] = cs[i].hasOnlyAir();
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+ // Paper start - Fix ChunkSnapshot#isSectionEmpty(int); and remove codec usage
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+ sectionEmpty[i] = cs[i].hasOnlyAir(); // fix sectionEmpty array not being filled
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+ if (!sectionEmpty[i]) {
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+ sectionBlockIDs[i] = cs[i].getStates().copy(); // use copy instead of round tripping with codecs
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+ } else {
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+ sectionBlockIDs[i] = CraftChunk.emptyBlockIDs; // use cached instance for empty block sections
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+ }
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+ // Paper end - Fix ChunkSnapshot#isSectionEmpty(int)
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LevelLightEngine lightengine = this.worldServer.getLightEngine();
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DataLayer skyLightArray = lightengine.getLayerListener(LightLayer.SKY).getDataLayerData(SectionPos.of(this.x, chunk.getSectionYFromSectionIndex(i), this.z)); // SPIGOT-7498: Convert section index
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@@ -364,8 +367,7 @@ public class CraftChunk implements Chunk {
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}
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if (biome != null) {
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- data.put("biomes", biomeCodec.encodeStart(NbtOps.INSTANCE, cs[i].getBiomes()).getOrThrow());
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- biome[i] = biomeCodec.parse(NbtOps.INSTANCE, data.getCompound("biomes")).getOrThrow(SerializableChunkData.ChunkReadException::new);
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+ biome[i] = ((PalettedContainer<Holder<net.minecraft.world.level.biome.Biome>>) cs[i].getBiomes()).copy(); // Paper - Perf: use copy instead of round tripping with codecs
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}
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}
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