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0d3b35c339
Paper/Spigot-Server-Patches/0288-Optimize-Hoppers.patch
Zach Brown 0d3b35c339
Rename baby zombie movement config option 
This option does not set the absolute speed of the entity as the name
implies. It sets a modifier. The default (vanilla) value of `0.5` sets
the baby zombie to move at 50% faster than the base speed.

A negative value like `-0.4` would set them to move at 40% slower.

There should be no functional changes as a result of this change, it's
just clarifying the config name.
2019-10-26 17:55:58 -05:00

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From aedcb2249752ae04d77f953d837e2af692ef756f Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 27 Apr 2016 22:09:52 -0400
Subject: [PATCH] Optimize Hoppers
* Removes unnecessary extra calls to .update() that are very expensive
* Lots of itemstack cloning removed. Only clone if the item is actually moved
* Return true when a plugin cancels inventory move item event instead of false, as false causes pulls to cycle through all items.
However, pushes do not exhibit the same behavior, so this is not something plugins could of been relying on.
* Add option (Default on) to cooldown hoppers when they fail to move an item due to full inventory
* Skip subsequent InventoryMoveItemEvents if a plugin does not use the item after first event fire for an iteration
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 9ee27f638..269c1ace4 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -360,6 +360,15 @@ public class PaperWorldConfig {
squidMaxSpawnHeight = getDouble("squid-spawn-height.maximum", 0.0D);
}
+ public boolean cooldownHopperWhenFull = true;
+ public boolean disableHopperMoveEvents = false;
+ private void hopperOptimizations() {
+ cooldownHopperWhenFull = getBoolean("hopper.cooldown-when-full", cooldownHopperWhenFull);
+ log("Cooldown Hoppers when Full: " + (cooldownHopperWhenFull ? "enabled" : "disabled"));
+ disableHopperMoveEvents = getBoolean("hopper.disable-move-event", disableHopperMoveEvents);
+ log("Hopper Move Item Events: " + (disableHopperMoveEvents ? "disabled" : "enabled"));
+ }
+
public boolean disableSprintInterruptionOnAttack;
private void disableSprintInterruptionOnAttack() {
disableSprintInterruptionOnAttack = getBoolean("game-mechanics.disable-sprint-interruption-on-attack", false);
diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
index c69a067ef..1e23d77e7 100644
--- a/src/main/java/net/minecraft/server/ItemStack.java
+++ b/src/main/java/net/minecraft/server/ItemStack.java
@@ -482,8 +482,9 @@ public final class ItemStack {
return this.getItem().a(this, entityhuman, entityliving, enumhand);
}
- public ItemStack cloneItemStack() {
- ItemStack itemstack = new ItemStack(this.getItem(), this.count);
+ public ItemStack cloneItemStack() { return cloneItemStack(false); } // Paper
+ public ItemStack cloneItemStack(boolean origItem) { // Paper
+ ItemStack itemstack = new ItemStack(origItem ? this.item : this.getItem(), this.count); // Paper
itemstack.d(this.C());
if (this.tag != null) {
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 6f410ca92..c07578067 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1160,6 +1160,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
WorldServer worldserver = (WorldServer) iterator.next();
worldserver.hasPhysicsEvent = org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper
+ TileEntityHopper.skipHopperEvents = worldserver.paperConfig.disableHopperMoveEvents || org.bukkit.event.inventory.InventoryMoveItemEvent.getHandlerList().getRegisteredListeners().length == 0; // Paper
if (true || worldserver.worldProvider.getDimensionManager() == DimensionManager.OVERWORLD || this.getAllowNether()) { // CraftBukkit
this.methodProfiler.a(() -> {
return worldserver.getWorldData().getName() + " " + IRegistry.DIMENSION_TYPE.getKey(worldserver.worldProvider.getDimensionManager());
diff --git a/src/main/java/net/minecraft/server/TileEntity.java b/src/main/java/net/minecraft/server/TileEntity.java
index c72b01386..b8ddb99fa 100644
--- a/src/main/java/net/minecraft/server/TileEntity.java
+++ b/src/main/java/net/minecraft/server/TileEntity.java
@@ -62,6 +62,7 @@ public abstract class TileEntity implements KeyedObject { // Paper
public void setCurrentChunk(Chunk chunk) {
this.currentChunk = chunk != null ? new java.lang.ref.WeakReference<>(chunk) : null;
}
+ static boolean IGNORE_TILE_UPDATES = false;
// Paper end
@Nullable
@@ -139,6 +140,7 @@ public abstract class TileEntity implements KeyedObject { // Paper
public void update() {
if (this.world != null) {
+ if (IGNORE_TILE_UPDATES) return; // Paper
this.c = this.world.getType(this.position);
this.world.b(this.position, this);
if (!this.c.isAir()) {
diff --git a/src/main/java/net/minecraft/server/TileEntityHopper.java b/src/main/java/net/minecraft/server/TileEntityHopper.java
index 1ba98bf73..6f6519f6c 100644
--- a/src/main/java/net/minecraft/server/TileEntityHopper.java
+++ b/src/main/java/net/minecraft/server/TileEntityHopper.java
@@ -189,6 +189,154 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
return false;
}
+ // Paper start - Optimize Hoppers
+ private static boolean skipPullModeEventFire = false;
+ private static boolean skipPushModeEventFire = false;
+ static boolean skipHopperEvents = false;
+
+ private boolean hopperPush(IInventory iinventory, EnumDirection enumdirection) {
+ skipPushModeEventFire = skipHopperEvents;
+ boolean foundItem = false;
+ for (int i = 0; i < this.getSize(); ++i) {
+ if (!this.getItem(i).isEmpty()) {
+ foundItem = true;
+ ItemStack origItemStack = this.getItem(i);
+ ItemStack itemstack = origItemStack;
+
+ final int origCount = origItemStack.getCount();
+ final int moved = Math.min(world.spigotConfig.hopperAmount, origCount);
+ origItemStack.setCount(moved);
+
+ // We only need to fire the event once to give protection plugins a chance to cancel this event
+ // Because nothing uses getItem, every event call should end up the same result.
+ if (!skipPushModeEventFire) {
+ itemstack = callPushMoveEvent(iinventory, itemstack);
+ if (itemstack == null) { // cancelled
+ origItemStack.setCount(origCount);
+ return false;
+ }
+ }
+ final ItemStack itemstack2 = addItem(this, iinventory, itemstack, enumdirection);
+ final int remaining = itemstack2.getCount();
+ if (remaining != moved) {
+ origItemStack = origItemStack.cloneItemStack(true);
+ origItemStack.setCount(origCount - moved + remaining);
+ this.setItem(i, origItemStack);
+ iinventory.update();
+ return true;
+ }
+ origItemStack.setCount(origCount);
+ }
+ }
+ if (foundItem && world.paperConfig.cooldownHopperWhenFull) { // Inventory was full - cooldown
+ this.setCooldown(world.spigotConfig.hopperTransfer);
+ }
+ return false;
+ }
+
+ private static boolean hopperPull(IHopper ihopper, IInventory iinventory, int i) {
+ ItemStack origItemStack = iinventory.getItem(i);
+ ItemStack itemstack = origItemStack;
+ final int origCount = origItemStack.getCount();
+ final World world = ihopper.getWorld();
+ final int moved = Math.min(world.spigotConfig.hopperAmount, origCount);
+ itemstack.setCount(moved);
+
+ if (!skipPullModeEventFire) {
+ itemstack = callPullMoveEvent(ihopper, iinventory, itemstack);
+ if (itemstack == null) { // cancelled
+ origItemStack.setCount(origCount);
+ // Drastically improve performance by returning true.
+ // No plugin could of relied on the behavior of false as the other call
+ // site for IMIE did not exhibit the same behavior
+ return true;
+ }
+ }
+
+ final ItemStack itemstack2 = addItem(iinventory, ihopper, itemstack, null);
+ final int remaining = itemstack2.getCount();
+ if (remaining != moved) {
+ origItemStack = origItemStack.cloneItemStack(true);
+ origItemStack.setCount(origCount - moved + remaining);
+ IGNORE_TILE_UPDATES = true;
+ iinventory.setItem(i, origItemStack);
+ IGNORE_TILE_UPDATES = false;
+ iinventory.update();
+ return true;
+ }
+ origItemStack.setCount(origCount);
+
+ if (world.paperConfig.cooldownHopperWhenFull) {
+ cooldownHopper(ihopper);
+ }
+
+ return false;
+ }
+
+ private ItemStack callPushMoveEvent(IInventory iinventory, ItemStack itemstack) {
+ Inventory destinationInventory = getInventory(iinventory);
+ InventoryMoveItemEvent event = new InventoryMoveItemEvent(this.getOwner(false).getInventory(),
+ CraftItemStack.asCraftMirror(itemstack), destinationInventory, true);
+ boolean result = event.callEvent();
+ if (!event.calledGetItem && !event.calledSetItem) {
+ skipPushModeEventFire = true;
+ }
+ if (!result) {
+ cooldownHopper(this);
+ return null;
+ }
+
+ if (event.calledSetItem) {
+ return CraftItemStack.asNMSCopy(event.getItem());
+ } else {
+ return itemstack;
+ }
+ }
+
+ private static ItemStack callPullMoveEvent(IHopper hopper, IInventory iinventory, ItemStack itemstack) {
+ Inventory sourceInventory = getInventory(iinventory);
+ Inventory destination = getInventory(hopper);
+
+ InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory,
+ // Mirror is safe as we no plugins ever use this item
+ CraftItemStack.asCraftMirror(itemstack), destination, false);
+ boolean result = event.callEvent();
+ if (!event.calledGetItem && !event.calledSetItem) {
+ skipPullModeEventFire = true;
+ }
+ if (!result) {
+ cooldownHopper(hopper);
+ return null;
+ }
+
+ if (event.calledSetItem) {
+ return CraftItemStack.asNMSCopy(event.getItem());
+ } else {
+ return itemstack;
+ }
+ }
+
+ private static Inventory getInventory(IInventory iinventory) {
+ Inventory sourceInventory;// Have to special case large chests as they work oddly
+ if (iinventory instanceof InventoryLargeChest) {
+ sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((InventoryLargeChest) iinventory);
+ } else if (iinventory instanceof TileEntity) {
+ sourceInventory = ((TileEntity) iinventory).getOwner(false).getInventory();
+ } else {
+ sourceInventory = iinventory.getOwner().getInventory();
+ }
+ return sourceInventory;
+ }
+
+ private static void cooldownHopper(IHopper hopper) {
+ if (hopper instanceof TileEntityHopper) {
+ ((TileEntityHopper) hopper).setCooldown(hopper.getWorld().spigotConfig.hopperTransfer);
+ } else if (hopper instanceof EntityMinecartHopper) {
+ ((EntityMinecartHopper) hopper).setCooldown(hopper.getWorld().spigotConfig.hopperTransfer / 2);
+ }
+ }
+ // Paper end
+
private boolean t() {
IInventory iinventory = this.u();
@@ -200,6 +348,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
if (this.b(iinventory, enumdirection)) {
return false;
} else {
+ return hopperPush(iinventory, enumdirection); /* // Paper - disable rest
for (int i = 0; i < this.getSize(); ++i) {
if (!this.getItem(i).isEmpty()) {
ItemStack itemstack = this.getItem(i).cloneItemStack();
@@ -237,7 +386,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
}
}
- return false;
+ return false;*/ // Paper - end commenting out replaced block for Hopper Optimizations
}
}
}
@@ -267,6 +416,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
EnumDirection enumdirection = EnumDirection.DOWN;
return c(iinventory, enumdirection) ? false : a(iinventory, enumdirection).anyMatch((i) -> {
+ skipPullModeEventFire = skipHopperEvents; // Paper
return a(ihopper, iinventory, i, enumdirection);
});
} else {
@@ -290,6 +440,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
ItemStack itemstack = iinventory.getItem(i);
if (!itemstack.isEmpty() && b(iinventory, itemstack, i, enumdirection)) {
+ return hopperPull(ihopper, iinventory, i); /* // Paper - disable rest
ItemStack itemstack1 = itemstack.cloneItemStack();
// ItemStack itemstack2 = addItem(iinventory, ihopper, iinventory.splitStack(i, 1), (EnumDirection) null);
// CraftBukkit start - Call event on collection of items from inventories into the hopper
@@ -326,7 +477,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
}
itemstack1.subtract(origCount - itemstack2.getCount()); // Spigot
- iinventory.setItem(i, itemstack1);
+ iinventory.setItem(i, itemstack1);*/ // Paper - end commenting out replaced block for Hopper Optimizations
}
return false;
@@ -335,7 +486,7 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
public static boolean a(IInventory iinventory, EntityItem entityitem) {
boolean flag = false;
// CraftBukkit start
- InventoryPickupItemEvent event = new InventoryPickupItemEvent(iinventory.getOwner().getInventory(), (org.bukkit.entity.Item) entityitem.getBukkitEntity());
+ InventoryPickupItemEvent event = new InventoryPickupItemEvent(getInventory(iinventory), (org.bukkit.entity.Item) entityitem.getBukkitEntity()); // Paper - use getInventory() to avoid snapshot creation
entityitem.world.getServer().getPluginManager().callEvent(event);
if (event.isCancelled()) {
return false;
@@ -389,7 +540,9 @@ public class TileEntityHopper extends TileEntityLootable implements IHopper, ITi
boolean flag1 = iinventory1.isNotEmpty();
if (itemstack1.isEmpty()) {
+ IGNORE_TILE_UPDATES = true; // Paper
iinventory1.setItem(i, itemstack);
+ IGNORE_TILE_UPDATES = false; // Paper
itemstack = ItemStack.a;
flag = true;
} else if (a(itemstack1, itemstack)) {
--
2.23.0
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