spigot/CraftBukkit-Patches/0117-Use-FastMatches-for-ItemStack-Dirty-Check.patch

76 lines
3.7 KiB
Diff

From b2b012019657d59ad32f2f2612caeaa9ed4e21cb Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Sun, 22 Feb 2015 12:27:40 +1100
Subject: [PATCH] Use FastMatches for ItemStack Dirty Check
The check to find dirty itemstacks and send update packets each tick can be very intensive as it checks the entire itemstack, including the entire NBT map. To save on this, 19/20 times we will simply compare the basic count/data/type. If for some strange reason the NBT of an item already existing in an inventory is changes, it will take up to 1 second to show, with an average time of half a second. This odd 0.5 second delay is far preferable to lag every tick, and shouldn't be noticed by anyone.
diff --git a/src/main/java/net/minecraft/server/Container.java b/src/main/java/net/minecraft/server/Container.java
index 0ae0b5ed..e86ffb4d 100644
--- a/src/main/java/net/minecraft/server/Container.java
+++ b/src/main/java/net/minecraft/server/Container.java
@@ -28,6 +28,7 @@ public abstract class Container {
private final Set<Slot> h = Sets.newHashSet();
protected List<ICrafting> listeners = Lists.newArrayList();
private final Set<EntityHuman> i = Sets.newHashSet();
+ private int tickCount; // Spigot
// CraftBukkit start
public boolean checkReachable = true;
@@ -75,7 +76,7 @@ public abstract class Container {
ItemStack itemstack = ((Slot) this.slots.get(i)).getItem();
ItemStack itemstack1 = (ItemStack) this.items.get(i);
- if (!ItemStack.matches(itemstack1, itemstack)) {
+ if (!ItemStack.fastMatches(itemstack1, itemstack) || (tickCount % org.spigotmc.SpigotConfig.itemDirtyTicks == 0 && !ItemStack.matches(itemstack1, itemstack))) { // Spigot
itemstack1 = itemstack.isEmpty() ? ItemStack.a : itemstack.cloneItemStack();
this.items.set(i, itemstack1);
@@ -84,6 +85,7 @@ public abstract class Container {
}
}
}
+ tickCount++; // Spigot
}
diff --git a/src/main/java/net/minecraft/server/ItemStack.java b/src/main/java/net/minecraft/server/ItemStack.java
index 0e31f283..cc96294f 100644
--- a/src/main/java/net/minecraft/server/ItemStack.java
+++ b/src/main/java/net/minecraft/server/ItemStack.java
@@ -428,6 +428,18 @@ public final class ItemStack {
return itemstack.isEmpty() && itemstack1.isEmpty() ? true : (!itemstack.isEmpty() && !itemstack1.isEmpty() ? (itemstack.tag == null && itemstack1.tag != null ? false : itemstack.tag == null || itemstack.tag.equals(itemstack1.tag)) : false);
}
+ // Spigot Start
+ public static boolean fastMatches(ItemStack itemstack, ItemStack itemstack1) {
+ if (itemstack.isEmpty() && itemstack1.isEmpty()) {
+ return true;
+ }
+ if (!itemstack.isEmpty() && !itemstack1.isEmpty()) {
+ return itemstack.count == itemstack1.count && itemstack.item == itemstack1.item;
+ }
+ return false;
+ }
+ // Spigot End
+
public static boolean matches(ItemStack itemstack, ItemStack itemstack1) {
return itemstack.isEmpty() && itemstack1.isEmpty() ? true : (!itemstack.isEmpty() && !itemstack1.isEmpty() ? itemstack.c(itemstack1) : false);
}
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index 7b8d9c23..f3469d26 100644
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -379,4 +379,9 @@ public class SpigotConfig
Bukkit.getLogger().info( "Debug logging is disabled" );
}
}
+
+ public static int itemDirtyTicks;
+ private static void itemDirtyTicks() {
+ itemDirtyTicks = getInt("settings.item-dirty-ticks", 20);
+ }
}
--
2.17.1