Paper/patches/server/0065-Handle-Item-Meta-Inconsistencies.patch

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2021-06-11 14:02:28 +02:00
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 28 May 2015 23:00:19 -0400
Subject: [PATCH] Handle Item Meta Inconsistencies
First, Enchantment order would blow away seeing 2 items as the same,
however the Client forces enchantment list in a certain order, as well
as does the /enchant command. Anvils can insert it into forced order,
causing 2 same items to be considered different.
This change makes unhandled NBT Tags and Enchantments use a sorted tree map,
so they will always be in a consistent order.
Additionally, the old enchantment API was never updated when ItemMeta
was added, resulting in 2 different ways to modify an items enchantments.
For consistency, the old API methods now forward to use the
ItemMeta API equivalents, and should deprecate the old API's.
diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
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index 7f778e037c1821cc45236bf2a95c28243d0ec126..758f0a620551838e32d5c68f7ee755f7ea374a46 100644
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--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
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@@ -151,6 +151,23 @@ public final class ItemStack {
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return this.getItem().getTooltipImage(this);
}
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+ // Paper start
+ private static final java.util.Comparator<? super CompoundTag> enchantSorter = java.util.Comparator.comparing(o -> o.getString("id"));
+ private void processEnchantOrder(@Nullable CompoundTag tag) {
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+ if (tag == null || !tag.contains("Enchantments", 9)) {
+ return;
+ }
+ ListTag list = tag.getList("Enchantments", 10);
+ if (list.size() < 2) {
+ return;
+ }
+ try {
+ //noinspection unchecked
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+ list.sort((java.util.Comparator<? super net.minecraft.nbt.Tag>) enchantSorter); // Paper
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+ } catch (Exception ignored) {}
+ }
+ // Paper end
+
public ItemStack(ItemLike item) {
this(item, 1);
}
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@@ -202,6 +219,7 @@ public final class ItemStack {
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// CraftBukkit start - make defensive copy as this data may be coming from the save thread
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this.tag = nbttagcompound.getCompound("tag").copy();
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// CraftBukkit end
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+ this.processEnchantOrder(this.tag); // Paper
this.getItem().verifyTagAfterLoad(this.tag);
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}
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@@ -772,6 +790,7 @@ public final class ItemStack {
public void setTag(@Nullable CompoundTag nbt) {
this.tag = nbt;
+ this.processEnchantOrder(this.tag); // Paper
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if (this.getItem().canBeDepleted()) {
this.setDamageValue(this.getDamageValue());
}
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@@ -1061,6 +1080,7 @@ public final class ItemStack {
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ListTag nbttaglist = this.tag.getList("Enchantments", 10);
nbttaglist.add(EnchantmentHelper.storeEnchantment(EnchantmentHelper.getEnchantmentId(enchantment), (byte) level));
+ processEnchantOrder(this.tag); // Paper
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}
public boolean isEnchanted() {
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
2022-06-07 21:55:39 +02:00
index 4b79b96579efbc4dd9a10e7183ed08b73b488794..3745033afb8923ce06cbf13b55c4e96f2a89573f 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -6,7 +6,6 @@ import java.util.Map;
import net.minecraft.nbt.CompoundTag;
import net.minecraft.nbt.ListTag;
import net.minecraft.world.item.Item;
-import net.minecraft.world.item.enchantment.EnchantmentHelper;
import org.apache.commons.lang.Validate;
import org.bukkit.Material;
import org.bukkit.NamespacedKey;
@@ -178,28 +177,11 @@ public final class CraftItemStack extends ItemStack {
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public void addUnsafeEnchantment(Enchantment ench, int level) {
Validate.notNull(ench, "Cannot add null enchantment");
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- if (!CraftItemStack.makeTag(this.handle)) {
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- return;
- }
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- ListTag list = CraftItemStack.getEnchantmentList(this.handle);
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- if (list == null) {
- list = new ListTag();
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- this.handle.getTag().put(ENCHANTMENTS.NBT, list);
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- }
- int size = list.size();
-
- for (int i = 0; i < size; i++) {
- CompoundTag tag = (CompoundTag) list.get(i);
- String id = tag.getString(ENCHANTMENTS_ID.NBT);
- if (ench.getKey().equals(NamespacedKey.fromString(id))) {
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- tag.putShort(ENCHANTMENTS_LVL.NBT, (short) level);
- return;
- }
- }
- CompoundTag tag = new CompoundTag();
- tag.putString(ENCHANTMENTS_ID.NBT, ench.getKey().toString());
- tag.putShort(ENCHANTMENTS_LVL.NBT, (short) level);
- list.add(tag);
+ // Paper start - Replace whole method
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+ final ItemMeta itemMeta = this.getItemMeta();
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+ itemMeta.addEnchant(ench, level, true);
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+ this.setItemMeta(itemMeta);
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+ // Paper end
}
static boolean makeTag(net.minecraft.world.item.ItemStack item) {
@@ -216,66 +198,34 @@ public final class CraftItemStack extends ItemStack {
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@Override
public boolean containsEnchantment(Enchantment ench) {
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- return this.getEnchantmentLevel(ench) > 0;
+ return this.hasItemMeta() && this.getItemMeta().hasEnchant(ench); // Paper - use meta
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}
@Override
public int getEnchantmentLevel(Enchantment ench) {
- Validate.notNull(ench, "Cannot find null enchantment");
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- if (this.handle == null) {
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- return 0;
- }
- return EnchantmentHelper.getItemEnchantmentLevel(CraftEnchantment.getRaw(ench), handle);
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+ return this.hasItemMeta() ? this.getItemMeta().getEnchantLevel(ench) : 0; // Paper - replace entire method with meta
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}
@Override
public int removeEnchantment(Enchantment ench) {
Validate.notNull(ench, "Cannot remove null enchantment");
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- ListTag list = CraftItemStack.getEnchantmentList(this.handle), listCopy;
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- if (list == null) {
- return 0;
- }
- int index = Integer.MIN_VALUE;
- int level = Integer.MIN_VALUE;
- int size = list.size();
-
- for (int i = 0; i < size; i++) {
- CompoundTag enchantment = (CompoundTag) list.get(i);
- String id = enchantment.getString(ENCHANTMENTS_ID.NBT);
- if (ench.getKey().equals(NamespacedKey.fromString(id))) {
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- index = i;
- level = 0xffff & enchantment.getShort(ENCHANTMENTS_LVL.NBT);
- break;
- }
- }
-
- if (index == Integer.MIN_VALUE) {
- return 0;
- }
- if (size == 1) {
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- this.handle.getTag().remove(ENCHANTMENTS.NBT);
- if (this.handle.getTag().isEmpty()) {
- this.handle.setTag(null);
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- }
- return level;
- }
-
- // This is workaround for not having an index removal
- listCopy = new ListTag();
- for (int i = 0; i < size; i++) {
- if (i != index) {
- listCopy.add(list.get(i));
- }
+ // Paper start - replace entire method
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+ final ItemMeta itemMeta = this.getItemMeta();
+ if (itemMeta == null) return 0;
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+ int level = itemMeta.getEnchantLevel(ench);
+ if (level > 0) {
+ itemMeta.removeEnchant(ench);
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+ this.setItemMeta(itemMeta);
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}
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- this.handle.getTag().put(ENCHANTMENTS.NBT, listCopy);
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+ // Paper end
return level;
}
@Override
public Map<Enchantment, Integer> getEnchantments() {
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- return CraftItemStack.getEnchantments(this.handle);
+ return this.hasItemMeta() ? this.getItemMeta().getEnchants() : ImmutableMap.<Enchantment, Integer>of(); // Paper - use Item Meta
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}
static Map<Enchantment, Integer> getEnchantments(net.minecraft.world.item.ItemStack item) {
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
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index 0a5f063bc74e1dae67167537437ebd7e4ddf113a..4d687fa31f4d889ac755c178b9afd2b927c78ee2 100644
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--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java
@@ -6,6 +6,7 @@ import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableMultimap;
import com.google.common.collect.LinkedHashMultimap;
+import com.google.common.collect.ImmutableSortedMap; // Paper
import com.google.common.collect.Lists;
import com.google.common.collect.Multimap;
import com.google.common.collect.SetMultimap;
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@@ -23,6 +24,7 @@ import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Base64;
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import java.util.Collection;
+import java.util.Comparator; // Paper
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Iterator;
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@@ -33,6 +35,7 @@ import java.util.Map;
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import java.util.NoSuchElementException;
import java.util.Objects;
import java.util.Set;
+import java.util.TreeMap; // Paper
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.Nonnull;
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@@ -272,7 +275,7 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
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private List<String> lore; // null and empty are two different states internally
private Integer customModelData;
private CompoundTag blockData;
- private Map<Enchantment, Integer> enchantments;
+ private EnchantmentMap enchantments; // Paper
private Multimap<Attribute, AttributeModifier> attributeModifiers;
private int repairCost;
private int hideFlag;
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@@ -283,7 +286,7 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
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private static final CraftPersistentDataTypeRegistry DATA_TYPE_REGISTRY = new CraftPersistentDataTypeRegistry();
private CompoundTag internalTag;
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- final Map<String, Tag> unhandledTags = new HashMap<String, Tag>(); // Visible for testing only
+ final Map<String, Tag> unhandledTags = new TreeMap<String, Tag>(); // Visible for testing only // Paper
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private CraftPersistentDataContainer persistentDataContainer = new CraftPersistentDataContainer(CraftMetaItem.DATA_TYPE_REGISTRY);
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private int version = CraftMagicNumbers.INSTANCE.getDataVersion(); // Internal use only
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@@ -304,7 +307,7 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
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this.blockData = meta.blockData;
if (meta.enchantments != null) { // Spigot
- this.enchantments = new LinkedHashMap<Enchantment, Integer>(meta.enchantments);
+ this.enchantments = new EnchantmentMap(meta.enchantments); // Paper
}
if (meta.hasAttributeModifiers()) {
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@@ -387,13 +390,13 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
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}
}
- static Map<Enchantment, Integer> buildEnchantments(CompoundTag tag, ItemMetaKey key) {
+ static EnchantmentMap buildEnchantments(CompoundTag tag, ItemMetaKey key) { // Paper
if (!tag.contains(key.NBT)) {
return null;
}
ListTag ench = tag.getList(key.NBT, CraftMagicNumbers.NBT.TAG_COMPOUND);
- Map<Enchantment, Integer> enchantments = new LinkedHashMap<Enchantment, Integer>(ench.size());
+ EnchantmentMap enchantments = new EnchantmentMap(); // Paper
for (int i = 0; i < ench.size(); i++) {
String id = ((CompoundTag) ench.get(i)).getString(ENCHANTMENTS_ID.NBT);
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@@ -546,13 +549,13 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
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}
}
- static Map<Enchantment, Integer> buildEnchantments(Map<String, Object> map, ItemMetaKey key) {
+ static EnchantmentMap buildEnchantments(Map<String, Object> map, ItemMetaKey key) { // Paper
Map<?, ?> ench = SerializableMeta.getObject(Map.class, map, key.BUKKIT, true);
if (ench == null) {
return null;
}
- Map<Enchantment, Integer> enchantments = new LinkedHashMap<Enchantment, Integer>(ench.size());
+ EnchantmentMap enchantments = new EnchantmentMap(); // Paper
for (Map.Entry<?, ?> entry : ench.entrySet()) {
// Doctor older enchants
String enchantKey = entry.getKey().toString();
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@@ -828,14 +831,14 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
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@Override
public Map<Enchantment, Integer> getEnchants() {
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- return this.hasEnchants() ? ImmutableMap.copyOf(enchantments) : ImmutableMap.<Enchantment, Integer>of();
+ return this.hasEnchants() ? ImmutableSortedMap.copyOfSorted(this.enchantments) : ImmutableMap.<Enchantment, Integer>of(); // Paper
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}
@Override
public boolean addEnchant(Enchantment ench, int level, boolean ignoreRestrictions) {
Validate.notNull(ench, "Enchantment cannot be null");
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if (this.enchantments == null) {
- this.enchantments = new LinkedHashMap<Enchantment, Integer>(4);
+ this.enchantments = new EnchantmentMap(); // Paper
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}
if (ignoreRestrictions || level >= ench.getStartLevel() && level <= ench.getMaxLevel()) {
@@ -1223,7 +1226,7 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
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clone.customModelData = this.customModelData;
clone.blockData = this.blockData;
if (this.enchantments != null) {
- clone.enchantments = new LinkedHashMap<Enchantment, Integer>(this.enchantments);
+ clone.enchantments = new EnchantmentMap(this.enchantments); // Paper
}
if (this.hasAttributeModifiers()) {
clone.attributeModifiers = LinkedHashMultimap.create(this.attributeModifiers);
@@ -1458,4 +1461,22 @@ class CraftMetaItem implements ItemMeta, Damageable, Repairable, BlockDataMeta {
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return CraftMetaItem.HANDLED_TAGS;
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}
}
+
+ // Paper start
+ private static class EnchantmentMap extends TreeMap<Enchantment, Integer> {
+ private EnchantmentMap(Map<Enchantment, Integer> enchantments) {
+ this();
+ putAll(enchantments);
+ }
+
+ private EnchantmentMap() {
+ super(Comparator.comparing(o -> o.getKey().toString()));
+ }
+
+ public EnchantmentMap clone() {
+ return (EnchantmentMap) super.clone();
+ }
+ }
+ // Paper end
+
}