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Paper/Spigot-Server-Patches/0165-Don-t-try-and-fix-TileEntities-as-they-are-removed.patch

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From 199cb45701fdd79ac7b6e3898ab6f3eff5f4c959 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Sat, 25 Jun 2016 23:55:56 -0500
Subject: [PATCH] Don't try and fix TileEntities as they are removed
Currently, CraftBukkit tries to fix TEs that do not match the present block at the location. This is normally good,
however, this same fixer runs when the TE removal functions go through to remove a TE after its block has been changed.
So a block will be changed, the server will attempt to remove the TE present, but will then get caught up in CB's overzealous
TE fixer. That fixer checks the block against the TE present, and throws a fit because it doesn't match. Which is why we're
removing it in the first place.
The 'fix' to this issue is to skip the fixer entirely when we're removing the TE, as it shouldn't ever need to run
then anyway, we're removing it.
diff --git a/src/main/java/net/minecraft/server/BlockChest.java b/src/main/java/net/minecraft/server/BlockChest.java
index a5f2fc0..ef525ea 100644
--- a/src/main/java/net/minecraft/server/BlockChest.java
+++ b/src/main/java/net/minecraft/server/BlockChest.java
@@ -288,7 +288,7 @@ public class BlockChest extends BlockTileEntity {
}
public void remove(World world, BlockPosition blockposition, IBlockData iblockdata) {
- TileEntity tileentity = world.getTileEntity(blockposition);
+ TileEntity tileentity = world.getTileEntity(blockposition, true); // Paper - This is being removed, don't fix
if (tileentity instanceof IInventory) {
InventoryUtils.dropInventory(world, blockposition, (IInventory) tileentity);
diff --git a/src/main/java/net/minecraft/server/BlockDispenser.java b/src/main/java/net/minecraft/server/BlockDispenser.java
index 024ce36..c423663 100644
--- a/src/main/java/net/minecraft/server/BlockDispenser.java
+++ b/src/main/java/net/minecraft/server/BlockDispenser.java
@@ -144,7 +144,7 @@ public class BlockDispenser extends BlockTileEntity {
}
public void remove(World world, BlockPosition blockposition, IBlockData iblockdata) {
- TileEntity tileentity = world.getTileEntity(blockposition);
+ TileEntity tileentity = world.getTileEntity(blockposition, true); // Paper - This is being removed, don't fix
if (tileentity instanceof TileEntityDispenser) {
InventoryUtils.dropInventory(world, blockposition, (TileEntityDispenser) tileentity);
diff --git a/src/main/java/net/minecraft/server/BlockFurnace.java b/src/main/java/net/minecraft/server/BlockFurnace.java
index 25f7b4b..898be91 100644
--- a/src/main/java/net/minecraft/server/BlockFurnace.java
+++ b/src/main/java/net/minecraft/server/BlockFurnace.java
@@ -109,7 +109,7 @@ public class BlockFurnace extends BlockTileEntity {
public void remove(World world, BlockPosition blockposition, IBlockData iblockdata) {
if (!BlockFurnace.c) {
- TileEntity tileentity = world.getTileEntity(blockposition);
+ TileEntity tileentity = world.getTileEntity(blockposition, true); // Paper - This is being removed, don't fix
if (tileentity instanceof TileEntityFurnace) {
InventoryUtils.dropInventory(world, blockposition, (TileEntityFurnace) tileentity);
diff --git a/src/main/java/net/minecraft/server/BlockSkull.java b/src/main/java/net/minecraft/server/BlockSkull.java
index 404793a..0d4d29b 100644
--- a/src/main/java/net/minecraft/server/BlockSkull.java
+++ b/src/main/java/net/minecraft/server/BlockSkull.java
@@ -122,7 +122,7 @@ public class BlockSkull extends BlockTileEntity {
// if (!((Boolean) iblockdata.get(BlockSkull.NODROP)).booleanValue()) {
if (false) {
// CraftBukkit end
- TileEntity tileentity = world.getTileEntity(blockposition);
+ TileEntity tileentity = world.getTileEntity(blockposition, true); // Paper - This is being removed, don't fix
if (tileentity instanceof TileEntitySkull) {
TileEntitySkull tileentityskull = (TileEntitySkull) tileentity;
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index f7d9a7c..383eef2 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -2071,8 +2071,14 @@ public abstract class World implements IBlockAccess {
}
public Map<BlockPosition, TileEntity> capturedTileEntities = Maps.newHashMap();
+ // Paper start - Add additional param so we can ignore fixing on removals
@Nullable
public TileEntity getTileEntity(BlockPosition blockposition) {
+ return getTileEntity(blockposition, false);
+ }
+
+ public TileEntity getTileEntity(BlockPosition blockposition, boolean isRemoving) {
+ // Paper end
if (blockposition.isInvalidYLocation()) { // Paper
return null;
} else {
@@ -2149,7 +2155,7 @@ public abstract class World implements IBlockAccess {
}
public void s(BlockPosition blockposition) {
- TileEntity tileentity = this.getTileEntity(blockposition);
+ TileEntity tileentity = this.getTileEntity(blockposition, true); // Paper - This is being removed, don't fix
if (tileentity != null && this.M) {
tileentity.y();
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 3377f97..269ae39 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -123,8 +123,16 @@ public class WorldServer extends World implements IAsyncTaskHandler {
// CraftBukkit start
@Override
+ // Paper start - Add additional param so we can ignore fixing on removals
public TileEntity getTileEntity(BlockPosition pos) {
- TileEntity result = super.getTileEntity(pos);
+ return getTileEntity(pos, false);
+ }
+
+ @Override
+ public TileEntity getTileEntity(BlockPosition pos, boolean isRemoving) {
+ TileEntity result = super.getTileEntity(pos, isRemoving);
+ if (isRemoving) return result;
+ // Paper end
Block type = getType(pos).getBlock();
if (type == Blocks.CHEST || type == Blocks.TRAPPED_CHEST) { // Spigot
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
index ed7e76f..988101a 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -136,10 +136,14 @@ public class CraftBlock implements Block {
IBlockData blockData = getNMSBlock(type).fromLegacyData(data);
BlockPosition position = new BlockPosition(x, y, z);
+ // Paper start - Unnecessary, root issue is CB TE's fixer getting too involved. Also potential data issues.
+ /*
// SPIGOT-611: need to do this to prevent glitchiness. Easier to handle this here (like /setblock) than to fix weirdness in tile entity cleanup
if (type != 0) {
chunk.getHandle().getWorld().setTypeAndData(position, Blocks.AIR.getBlockData(), 0);
}
+ */
+ // Paper end
if (applyPhysics) {
return chunk.getHandle().getWorld().setTypeAndData(position, blockData, 3);
--
2.9.0.windows.1
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