2022-06-07 21:55:39 +02:00
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 3 Apr 2016 17:48:50 -0400
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Subject: [PATCH] Fix Cancelling BlockPlaceEvent triggering physics
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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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Rework async chunk api implementation
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.
2024-11-19 07:34:32 +01:00
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index 0b0f68c9c1d153543ef4f333f39e89d353eb0dae..92387bffda6d7a7bfe6197b33c69142f184f9d3b 100644
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2022-06-07 21:55:39 +02:00
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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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Rework async chunk api implementation
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.
2024-11-19 07:34:32 +01:00
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@@ -1377,11 +1377,13 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
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2022-06-07 21:55:39 +02:00
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@Override
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2024-10-22 20:04:31 +02:00
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public void updateNeighborsAt(BlockPos pos, Block block) {
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2022-06-07 21:55:39 +02:00
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+ if (captureBlockStates) { return; } // Paper - Cancel all physics during placement
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2024-10-22 20:04:31 +02:00
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this.updateNeighborsAt(pos, block, ExperimentalRedstoneUtils.initialOrientation(this, (Direction) null, (Direction) null));
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}
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@Override
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public void updateNeighborsAt(BlockPos pos, Block sourceBlock, @Nullable Orientation orientation) {
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+ if (captureBlockStates) { return; } // Paper - Cancel all physics during placement
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this.neighborUpdater.updateNeighborsAtExceptFromFacing(pos, sourceBlock, (Direction) null, orientation);
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2022-06-07 21:55:39 +02:00
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}
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