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Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing CraftBukkit Changes:a339310c#755: Fix NPE when calling getInventory() for virtual EnderChests2577f9bfIncrease outdated build delay1dabfdc8#754: Fix pre-1.16 serialized SkullMeta being broken on 1.16+, losing textures
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: Zach Brown <zach@zachbr.io>
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Date: Thu, 31 Jan 2019 16:33:36 -0500
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Subject: [PATCH] Fire BlockPistonRetractEvent for all empty pistons
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There is an explicit check in the handling code for empty pistons that
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prevents sticky pistons from firing the event. However when we look back
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at the history we see that this check was originally added so that ONLY
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sticky pistons would fire the retract event. I'm not sure why.
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https://hub.spigotmc.org/stash/projects/SPIGOT/repos/craftbukkit/commits/1092acbddf07edfa4100bc6824504ac75088e913
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Over the course of several updates, the meaning of that field appears to
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have changed from "is NOT sticky" to "is sticky". So now its having the
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opposite effect. Only normal pistons fire the retraction event. And like
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all things in CB, it's just been carried around since.
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If we are to believe the history, the correct fix for this issue is to
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flip it so it only fires for sticky pistons, but that puts us in a
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bind. It's already firing for non-sticky pistons, changing it now would
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likely result in breakage. Furthermore, there is little documentation as
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to WHY that was ever intended to be the case.
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Instead we opt to remove the check entirely so that the event fires for
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all piston types.
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diff --git a/src/main/java/net/minecraft/server/BlockPiston.java b/src/main/java/net/minecraft/server/BlockPiston.java
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index 9f56471cdd180950d279883b8da71700604a9e31..417d1a6c3dbd23905672a847939d92a953bbc91c 100644
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--- a/src/main/java/net/minecraft/server/BlockPiston.java
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+++ b/src/main/java/net/minecraft/server/BlockPiston.java
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@@ -112,7 +112,7 @@ public class BlockPiston extends BlockDirectional {
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}
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// CraftBukkit start
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- if (!this.sticky) {
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+ //if (!this.sticky) { // Paper - Prevents empty sticky pistons from firing retract - history behind is odd
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org.bukkit.block.Block block = world.getWorld().getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ());
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BlockPistonRetractEvent event = new BlockPistonRetractEvent(block, ImmutableList.<org.bukkit.block.Block>of(), CraftBlock.notchToBlockFace(enumdirection));
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world.getServer().getPluginManager().callEvent(event);
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@@ -120,7 +120,7 @@ public class BlockPiston extends BlockDirectional {
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if (event.isCancelled()) {
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return;
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}
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- }
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+ //} // Paper
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// PAIL: checkME - what happened to setTypeAndData?
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// CraftBukkit end
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world.playBlockAction(blockposition, this, b0, enumdirection.c());
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