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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.
35 lines
2.4 KiB
Diff
35 lines
2.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Fri, 18 Mar 2022 21:30:00 -0700
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Subject: [PATCH] Fix async entity add due to fungus trees
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diff --git a/src/main/java/net/minecraft/server/level/WorldGenRegion.java b/src/main/java/net/minecraft/server/level/WorldGenRegion.java
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index 5bf438bb58833c1df3620e82d3d2b90207366372..2e72e92762877b28dd908711671e1dfb933de9b0 100644
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--- a/src/main/java/net/minecraft/server/level/WorldGenRegion.java
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+++ b/src/main/java/net/minecraft/server/level/WorldGenRegion.java
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@@ -237,6 +237,7 @@ public class WorldGenRegion implements WorldGenLevel {
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if (iblockdata.isAir()) {
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return false;
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} else {
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+ if (drop) LOGGER.warn("Potential async entity add during worldgen", new Throwable()); // Paper - Fix async entity add due to fungus trees; log when this happens
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if (false) { // CraftBukkit - SPIGOT-6833: Do not drop during world generation
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BlockEntity tileentity = iblockdata.hasBlockEntity() ? this.getBlockEntity(pos) : null;
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
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index a93a879117ee1eb06842242aa03f757a4a676946..4c234e887c42b27754ed8f05f2000d9309274427 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
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@@ -261,10 +261,10 @@ public abstract class CraftRegionAccessor implements RegionAccessor {
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((ChorusFlowerBlock) Blocks.CHORUS_FLOWER).generatePlant(access, pos, random, 8);
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return true;
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case CRIMSON_FUNGUS:
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- gen = TreeFeatures.CRIMSON_FUNGUS_PLANTED;
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+ gen = this.isNormalWorld() ? TreeFeatures.CRIMSON_FUNGUS_PLANTED : TreeFeatures.CRIMSON_FUNGUS; // Paper - Fix async entity add due to fungus trees; if world gen, don't use planted version
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break;
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case WARPED_FUNGUS:
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- gen = TreeFeatures.WARPED_FUNGUS_PLANTED;
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+ gen = this.isNormalWorld() ? TreeFeatures.WARPED_FUNGUS_PLANTED : TreeFeatures.WARPED_FUNGUS; // Paper - Fix async entity add due to fungus trees; if world gen, don't use planted version
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break;
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case AZALEA:
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gen = TreeFeatures.AZALEA_TREE;
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