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8c5b837e05
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.
48 lines
3.5 KiB
Diff
48 lines
3.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Tamion <70228790+notTamion@users.noreply.github.com>
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Date: Thu, 23 May 2024 11:02:20 +0200
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Subject: [PATCH] Fix cancelling BlockPlaceEvent calling onRemove
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diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
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index babd89f39c43b0c64709d99bf8aca6cdc6ca1b24..947e2a3620d73569552c5185664b7564e908007e 100644
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--- a/src/main/java/net/minecraft/world/item/ItemStack.java
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+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
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@@ -500,9 +500,11 @@ public final class ItemStack implements DataComponentHolder {
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world.capturedTileEntities.clear(); // Paper - Allow chests to be placed with NBT data; clear out block entities as chests and such will pop loot
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// revert back all captured blocks
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world.preventPoiUpdated = true; // CraftBukkit - SPIGOT-5710
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+ world.isBlockPlaceCancelled = true; // Paper - prevent calling cleanup logic when undoing a block place upon a cancelled BlockPlaceEvent
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for (BlockState blockstate : blocks) {
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blockstate.update(true, false);
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}
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+ world.isBlockPlaceCancelled = false; // Paper - prevent calling cleanup logic when undoing a block place upon a cancelled BlockPlaceEvent
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world.preventPoiUpdated = false;
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// Brute force all possible updates
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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 ba4006bc7dc31d10f37023cba7995a9621796f73..96f18fa8fb5eb856a95e94a42504c00046eb491a 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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@@ -152,6 +152,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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public boolean preventPoiUpdated = false; // CraftBukkit - SPIGOT-5710
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public boolean captureBlockStates = false;
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public boolean captureTreeGeneration = false;
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+ public boolean isBlockPlaceCancelled = false; // Paper - prevent calling cleanup logic when undoing a block place upon a cancelled BlockPlaceEvent
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public Map<BlockPos, org.bukkit.craftbukkit.block.CraftBlockState> capturedBlockStates = new java.util.LinkedHashMap<>(); // Paper
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public Map<BlockPos, BlockEntity> capturedTileEntities = new java.util.LinkedHashMap<>(); // Paper - Retain block place order when capturing blockstates
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public List<ItemEntity> captureDrops;
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diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
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index 7a794bb0587ce55b067c67dd17ab5be6a4773030..56227ce823ab2997e2602f0807bbd54e54454344 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
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@@ -369,7 +369,7 @@ public class LevelChunk extends ChunkAccess {
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boolean flag3 = iblockdata1.hasBlockEntity();
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- if (!this.level.isClientSide) {
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+ if (!this.level.isClientSide && !this.level.isBlockPlaceCancelled) { // Paper - prevent calling cleanup logic when undoing a block place upon a cancelled BlockPlaceEvent
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iblockdata1.onRemove(this.level, blockposition, iblockdata, flag);
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} else if (!iblockdata1.is(block) && flag3) {
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this.removeBlockEntity(blockposition);
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