68 lines
4.1 KiB
Diff
68 lines
4.1 KiB
Diff
From 9d7d7c604f70abfe98b0f08b04305ddcb28b415f Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Sat, 25 Nov 2017 17:02:33 +0000
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Subject: [PATCH] Do not use a snapshot for hoppers
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In 1.12, Spigot improved their blockstate implementation to take a full
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copy of the TE, this allows for a much better snapshot in that it will
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actually retain all of the TE's state, it is a much more expensive
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implementation. This is also implicated with their backwards compat
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for inventories meaning that accessing of a snapshots inventory of a
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placed block will actually access the inventory of the live TE, making
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creation of a snapshot redundant if the only intent is to interact with
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the TEs inventory.
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Hoppers are a horrible hit, every attempt to transfer an ItemStack will
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result in two TileEntity state snapshots, with two hoppers and a double chest
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ontop, I managed to log 380 cases per second where a snapshot would have been
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taken in cases where the snapshot is redundant.
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diff --git a/src/main/java/net/minecraft/server/TileEntityHopper.java b/src/main/java/net/minecraft/server/TileEntityHopper.java
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index 8ad081316..ebbe5d326 100644
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--- a/src/main/java/net/minecraft/server/TileEntityHopper.java
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+++ b/src/main/java/net/minecraft/server/TileEntityHopper.java
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@@ -219,11 +219,15 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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// Have to special case large chests as they work oddly
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if (iinventory instanceof InventoryLargeChest) {
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destinationInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((InventoryLargeChest) iinventory);
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+ // Paper start - avoid redundant snapshot creation of a TE
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+ } else if (iinventory instanceof TileEntity) {
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+ destinationInventory = ((TileEntity) iinventory).getOwner(false).getInventory();
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} else {
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destinationInventory = iinventory.getOwner().getInventory();
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}
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- InventoryMoveItemEvent event = new InventoryMoveItemEvent(this.getOwner().getInventory(), oitemstack.clone(), destinationInventory, true);
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+ InventoryMoveItemEvent event = new InventoryMoveItemEvent(this.getOwner(false).getInventory(), oitemstack.clone(), destinationInventory, true);
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+ // Paper end - avoid redundant snapshot creation of a TE
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this.getWorld().getServer().getPluginManager().callEvent(event);
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if (event.isCancelled()) {
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this.setItem(i, itemstack);
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@@ -379,12 +383,22 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
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// Have to special case large chests as they work oddly
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if (iinventory instanceof InventoryLargeChest) {
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sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((InventoryLargeChest) iinventory);
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+ // Paper start - avoid redundant snapshot creation of a TE
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+ } else if (iinventory instanceof TileEntity){
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+ sourceInventory = ((TileEntity) iinventory).getOwner(false).getInventory();
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} else {
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sourceInventory = iinventory.getOwner().getInventory();
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}
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- InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory, oitemstack.clone(), ihopper.getOwner().getInventory(), false);
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+ Inventory destination;
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+ if (ihopper instanceof TileEntity) {
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+ destination = ((TileEntity) ihopper).getOwner(false).getInventory();
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+ } else {
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+ destination = ihopper.getOwner().getInventory();
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+ }
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+ InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory, oitemstack.clone(), destination, false);
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+ // Paper end - avoid redundant snapshot creation of a TE
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ihopper.getWorld().getServer().getPluginManager().callEvent(event);
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if (event.isCancelled()) {
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iinventory.setItem(i, itemstack1);
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--
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2.15.1
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