Paper/Spigot-Server-Patches/0250-use-CB-BlockState-implementations-for-captured-block.patch
Aikar 18c3716c49
Current Chunk for Entity and Block Entities, counts by entity type
This enables us a fast reference to the entities current chunk instead
of having to look it up by hashmap lookups.

We also store counts by type to further enable other performance optimizations in later patches.
2018-07-04 03:58:56 -04:00

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From 59316f81fc224550436b7d841068d234a68ab9ae 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 2c69ae748..39b90fb4c 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
--
2.18.0