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use CB BlockState implementations for captured blocks (Fixes #868)

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Shane Freeder 2017-11-16 12:37:52 +00:00
parent 33bf9031be
commit 5980496556
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Spigot-Server-Patches/0253-use-CB-BlockState-implementations-for-captured-block.patch Normal file
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From e69d91eb673b19c50595896430b158450077429e Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Thu, 16 Nov 2017 12:12:41 +0000
Subject: [PATCH] use CB BlockState implementations for captured blocks
When modifying the world, CB will store a copy of the affected
blocks in order to restore their state in the case that the event
is cancelled. This change only modifies the collection of blocks
in the world by normal means, e.g. not during tree population,
as the potentially marginal overheads would serve no advantage.
CB was using a CraftBlockState for all blocks, which causes issues
should any block that uses information beyond a data ID would suffer
from missing information, e.g. Skulls.
By using CBs CraftBlock#getState(), we will maintain a proper copy of
the blockstate that will be valid for restoration, as opposed to dropping
information on restoration when the event is cancelled.
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index f9c5da59f..072b1201f 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -393,7 +393,8 @@ public abstract class World implements IBlockAccess {
// CraftBukkit start - capture blockstates
BlockState blockstate = null;
if (this.captureBlockStates) {
- blockstate = org.bukkit.craftbukkit.block.CraftBlockState.getBlockState(this, blockposition.getX(), blockposition.getY(), blockposition.getZ(), i);
+ //blockstate = org.bukkit.craftbukkit.block.CraftBlockState.getBlockState(this, blockposition.getX(), blockposition.getY(), blockposition.getZ(), i); // Paper
+ blockstate = world.getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ()).getState(); // Paper - use CB getState to get a suitable snapshot
this.capturedBlockStates.add(blockstate);
}
// CraftBukkit end
--
2.15.0