From efe95b788587939d67d7add7914c4272aef31230 Mon Sep 17 00:00:00 2001 From: Aikar 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/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java index 8b6fd4f..b397ccc 100644 --- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java +++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java @@ -4,6 +4,7 @@ import static org.bukkit.craftbukkit.inventory.CraftMetaItem.ENCHANTMENTS; import static org.bukkit.craftbukkit.inventory.CraftMetaItem.ENCHANTMENTS_ID; import static org.bukkit.craftbukkit.inventory.CraftMetaItem.ENCHANTMENTS_LVL; +import java.util.Iterator; import java.util.Map; import net.minecraft.server.EnchantmentManager; @@ -184,28 +185,11 @@ public final class CraftItemStack extends ItemStack { public void addUnsafeEnchantment(Enchantment ench, int level) { Validate.notNull(ench, "Cannot add null enchantment"); - if (!makeTag(handle)) { - return; - } - NBTTagList list = getEnchantmentList(handle); - if (list == null) { - list = new NBTTagList(); - handle.getTag().set(ENCHANTMENTS.NBT, list); - } - int size = list.size(); - - for (int i = 0; i < size; i++) { - NBTTagCompound tag = (NBTTagCompound) list.get(i); - short id = tag.getShort(ENCHANTMENTS_ID.NBT); - if (id == ench.getId()) { - tag.setShort(ENCHANTMENTS_LVL.NBT, (short) level); - return; - } - } - NBTTagCompound tag = new NBTTagCompound(); - tag.setShort(ENCHANTMENTS_ID.NBT, (short) ench.getId()); - tag.setShort(ENCHANTMENTS_LVL.NBT, (short) level); - list.add(tag); + // Paper start - Replace whole method + final ItemMeta itemMeta = getItemMeta(); + itemMeta.addEnchant(ench, level, true); + setItemMeta(itemMeta); + // Paper end } static boolean makeTag(net.minecraft.server.ItemStack item) { @@ -222,66 +206,34 @@ public final class CraftItemStack extends ItemStack { @Override public boolean containsEnchantment(Enchantment ench) { - return getEnchantmentLevel(ench) > 0; + return hasItemMeta() && getItemMeta().hasEnchant(ench); // Paper - use meta } @Override public int getEnchantmentLevel(Enchantment ench) { - Validate.notNull(ench, "Cannot find null enchantment"); - if (handle == null) { - return 0; - } - return EnchantmentManager.getEnchantmentLevel(CraftEnchantment.getRaw(ench), handle); + return hasItemMeta() ? getItemMeta().getEnchantLevel(ench) : 0; // Pape - replace entire method with meta } @Override public int removeEnchantment(Enchantment ench) { Validate.notNull(ench, "Cannot remove null enchantment"); - - NBTTagList list = getEnchantmentList(handle), listCopy; - 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++) { - NBTTagCompound enchantment = (NBTTagCompound) list.get(i); - int id = 0xffff & enchantment.getShort(ENCHANTMENTS_ID.NBT); - if (id == ench.getId()) { - index = i; - level = 0xffff & enchantment.getShort(ENCHANTMENTS_LVL.NBT); - break; - } - } - - if (index == Integer.MIN_VALUE) { - return 0; - } - if (size == 1) { - handle.getTag().remove(ENCHANTMENTS.NBT); - if (handle.getTag().isEmpty()) { - handle.setTag(null); + // Paper start - replace entire method, maintain backwards compat of returning previous level. + final ItemMeta itemMeta = getItemMeta(); + final Iterator iterator = itemMeta.getEnchants().keySet().iterator(); + for (int i = 0; iterator.hasNext(); i++) { + if (iterator.next().equals(ench)) { + itemMeta.removeEnchant(ench); + setItemMeta(itemMeta); + return i; } - return level; } - - // This is workaround for not having an index removal - listCopy = new NBTTagList(); - for (int i = 0; i < size; i++) { - if (i != index) { - listCopy.add(list.get(i)); - } - } - handle.getTag().set(ENCHANTMENTS.NBT, listCopy); - - return level; + // Paper end + return 0; } @Override public Map getEnchantments() { - return getEnchantments(handle); + return hasItemMeta() ? getItemMeta().getEnchants() : ImmutableMap.of(); // Paper - use Item Meta } static Map getEnchantments(net.minecraft.server.ItemStack item) { diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java index 22cc267..94f2ba0 100644 --- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java +++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaItem.java @@ -6,13 +6,8 @@ import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; import java.lang.reflect.Constructor; import java.lang.reflect.InvocationTargetException; -import java.util.ArrayList; -import java.util.Collection; -import java.util.HashMap; -import java.util.List; -import java.util.Map; -import java.util.NoSuchElementException; +import com.google.common.collect.ImmutableSortedMap; import net.minecraft.server.NBTBase; import net.minecraft.server.NBTTagCompound; import net.minecraft.server.NBTTagList; @@ -37,11 +32,18 @@ import com.google.common.collect.Sets; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; +import java.util.ArrayList; import java.util.Arrays; +import java.util.Collection; +import java.util.Comparator; import java.util.EnumSet; +import java.util.HashMap; import java.util.HashSet; -import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.NoSuchElementException; import java.util.Set; +import java.util.TreeMap; import java.util.logging.Level; import java.util.logging.Logger; import net.minecraft.server.NBTCompressedStreamTools; @@ -222,13 +224,13 @@ class CraftMetaItem implements ItemMeta, Repairable { private String displayName; private List lore; - private Map enchantments; + private EnchantmentMap enchantments; // Paper private int repairCost; private int hideFlag; private static final Set HANDLED_TAGS = Sets.newHashSet(); - private final Map unhandledTags = new HashMap(); + private final Map unhandledTags = new TreeMap<>(); // Paper CraftMetaItem(CraftMetaItem meta) { if (meta == null) { @@ -242,7 +244,7 @@ class CraftMetaItem implements ItemMeta, Repairable { } if (meta.enchantments != null) { // Spigot - this.enchantments = new HashMap(meta.enchantments); + this.enchantments = new EnchantmentMap(meta.enchantments); // Paper } this.repairCost = meta.repairCost; @@ -457,13 +459,13 @@ class CraftMetaItem implements ItemMeta, Repairable { // Spigot end } - static Map buildEnchantments(NBTTagCompound tag, ItemMetaKey key) { + static EnchantmentMap buildEnchantments(NBTTagCompound tag, ItemMetaKey key) { // Paper if (!tag.hasKey(key.NBT)) { return null; } NBTTagList ench = tag.getList(key.NBT, 10); - Map enchantments = new HashMap(ench.size()); + EnchantmentMap enchantments = new EnchantmentMap(); // Paper for (int i = 0; i < ench.size(); i++) { int id = 0xffff & ((NBTTagCompound) ench.get(i)).getShort(ENCHANTMENTS_ID.NBT); @@ -536,13 +538,13 @@ class CraftMetaItem implements ItemMeta, Repairable { void deserializeInternal(NBTTagCompound tag) { } - static Map buildEnchantments(Map map, ItemMetaKey key) { + static EnchantmentMap buildEnchantments(Map map, ItemMetaKey key) { // Paper Map ench = SerializableMeta.getObject(Map.class, map, key.BUKKIT, true); if (ench == null) { return null; } - Map enchantments = new HashMap(ench.size()); + EnchantmentMap enchantments = new EnchantmentMap(); // Paper for (Map.Entry entry : ench.entrySet()) { Enchantment enchantment = Enchantment.getByName(entry.getKey().toString()); @@ -672,12 +674,12 @@ class CraftMetaItem implements ItemMeta, Repairable { } public Map getEnchants() { - return hasEnchants() ? ImmutableMap.copyOf(enchantments) : ImmutableMap.of(); + return hasEnchants() ? ImmutableSortedMap.copyOfSorted(enchantments) : ImmutableMap.of(); // Paper } public boolean addEnchant(Enchantment ench, int level, boolean ignoreRestrictions) { if (enchantments == null) { - enchantments = new HashMap(4); + enchantments = new EnchantmentMap(); // Paper } if (ignoreRestrictions || level >= ench.getStartLevel() && level <= ench.getMaxLevel()) { @@ -835,7 +837,7 @@ class CraftMetaItem implements ItemMeta, Repairable { clone.lore = new ArrayList(this.lore); } if (this.enchantments != null) { - clone.enchantments = new HashMap(this.enchantments); + clone.enchantments = new EnchantmentMap(this.enchantments); // Paper } clone.hideFlag = this.hideFlag; return clone; @@ -991,6 +993,28 @@ class CraftMetaItem implements ItemMeta, Repairable { } } + // Paper start + private static class EnchantmentMap extends TreeMap { + private EnchantmentMap(Map enchantments) { + this(); + putAll(enchantments); + } + + private EnchantmentMap() { + super(new Comparator() { + @Override + public int compare(Enchantment o1, Enchantment o2) { + return ((Integer) o1.getId()).compareTo(o2.getId()); + } + }); + } + + public EnchantmentMap clone() { + return (EnchantmentMap) super.clone(); + } + } + // Paper end + // Spigot start private final Spigot spigot = new Spigot() { -- 2.7.3