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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sun, 15 Mar 2020 20:52:12 -0500
Subject: [PATCH] ItemStack convenience methods
diff --git a/src/main/java/org/bukkit/Material.java b/src/main/java/org/bukkit/Material.java
index e2b3470e3c9a97671723f5a67f722fb86fb07fbf..560b441ef35e507236e683b04f6a774c5949a078 100644
--- a/src/main/java/org/bukkit/Material.java
+++ b/src/main/java/org/bukkit/Material.java
@@ -8731,4 +8731,40 @@ public enum Material implements Keyed {
// </editor-fold>
}
}
+
+ // Purpur start
+ public boolean isArmor() {
+ switch (this) {
+ // <editor-fold defaultstate="collapsed" desc="isarmor">
+ case LEATHER_BOOTS:
+ case LEATHER_CHESTPLATE:
+ case LEATHER_HELMET:
+ case LEATHER_LEGGINGS:
+ case CHAINMAIL_BOOTS:
+ case CHAINMAIL_CHESTPLATE:
+ case CHAINMAIL_HELMET:
+ case CHAINMAIL_LEGGINGS:
+ case IRON_BOOTS:
+ case IRON_CHESTPLATE:
+ case IRON_HELMET:
+ case IRON_LEGGINGS:
+ case GOLDEN_BOOTS:
+ case GOLDEN_CHESTPLATE:
+ case GOLDEN_HELMET:
+ case GOLDEN_LEGGINGS:
+ case DIAMOND_BOOTS:
+ case DIAMOND_CHESTPLATE:
+ case DIAMOND_HELMET:
+ case DIAMOND_LEGGINGS:
+ case NETHERITE_BOOTS:
+ case NETHERITE_CHESTPLATE:
+ case NETHERITE_HELMET:
+ case NETHERITE_LEGGINGS:
+ case TURTLE_HELMET:
+ return true;
+ default:
+ return false;
+ }
+ }
+ // Purpur end
}
diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java
index 3e2c08641edffcf00b230ad624685aaff30af0e5..fceba6780a15c274c4689eccbeb6dfb2eee25ed9 100644
--- a/src/main/java/org/bukkit/inventory/ItemStack.java
+++ b/src/main/java/org/bukkit/inventory/ItemStack.java
@@ -17,6 +17,18 @@ import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.material.MaterialData;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
+// Purpur start
+import com.google.common.collect.Multimap;
+import java.util.Collection;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.attribute.AttributeModifier;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.inventory.meta.BlockDataMeta;
+import org.bukkit.inventory.meta.Repairable;
+import org.bukkit.persistence.PersistentDataContainer;
+import org.bukkit.persistence.PersistentDataHolder;
+import com.destroystokyo.paper.Namespaced;
+// Purpur end
/**
* Represents a stack of items.
@@ -914,4 +926,626 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, net.kyor
return Bukkit.getUnsafe().isValidRepairItemStack(toBeRepaired, this);
}
// Paper end
+
+ // Purpur start
+ /**
+ * Gets the display name that is set.
+ * <p>
+ * Plugins should check that hasDisplayName() returns <code>true</code>
+ * before calling this method.
+ *
+ * @return the display name that is set
+ */
+ @NotNull
+ public String getDisplayName() {
+ return getItemMeta().getDisplayName();
+ }
+
+ /**
+ * Sets the display name.
+ *
+ * @param name the name to set
+ */
+ public void setDisplayName(@Nullable String name) {
+ ItemMeta itemMeta = getItemMeta();
+ itemMeta.setDisplayName(name);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Checks for existence of a display name.
+ *
+ * @return true if this has a display name
+ */
+ public boolean hasDisplayName() {
+ return hasItemMeta() && getItemMeta().hasDisplayName();
+ }
+
+ /**
+ * Gets the localized display name that is set.
+ * <p>
+ * Plugins should check that hasLocalizedName() returns <code>true</code>
+ * before calling this method.
+ *
+ * @return the localized name that is set
+ */
+ @NotNull
+ public String getLocalizedName() {
+ return getItemMeta().getLocalizedName();
+ }
+
+ /**
+ * Sets the localized name.
+ *
+ * @param name the name to set
+ */
+ public void setLocalizedName(@Nullable String name) {
+ ItemMeta itemMeta = getItemMeta();
+ itemMeta.setLocalizedName(name);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Checks for existence of a localized name.
+ *
+ * @return true if this has a localized name
+ */
+ public boolean hasLocalizedName() {
+ return hasItemMeta() && getItemMeta().hasLocalizedName();
+ }
+
+ /**
+ * Checks for existence of lore.
+ *
+ * @return true if this has lore
+ */
+ public boolean hasLore() {
+ return hasItemMeta() && getItemMeta().hasLore();
+ }
+
+ /**
+ * Checks for existence of the specified enchantment.
+ *
+ * @param ench enchantment to check
+ * @return true if this enchantment exists for this meta
+ */
+ public boolean hasEnchant(@NotNull Enchantment ench) {
+ return hasItemMeta() && getItemMeta().hasEnchant(ench);
+ }
+
+ /**
+ * Checks for the level of the specified enchantment.
+ *
+ * @param ench enchantment to check
+ * @return The level that the specified enchantment has, or 0 if none
+ */
+ public int getEnchantLevel(@NotNull Enchantment ench) {
+ return getItemMeta().getEnchantLevel(ench);
+ }
+
+ /**
+ * Returns a copy the enchantments in this ItemMeta. <br>
+ * Returns an empty map if none.
+ *
+ * @return An immutable copy of the enchantments
+ */
+ @NotNull
+ public Map<Enchantment, Integer> getEnchants() {
+ return getItemMeta().getEnchants();
+ }
+
+ /**
+ * Adds the specified enchantment to this item meta.
+ *
+ * @param ench Enchantment to add
+ * @param level Level for the enchantment
+ * @param ignoreLevelRestriction this indicates the enchantment should be
+ * applied, ignoring the level limit
+ * @return true if the item meta changed as a result of this call, false
+ * otherwise
+ */
+ public boolean addEnchant(@NotNull Enchantment ench, int level, boolean ignoreLevelRestriction) {
+ ItemMeta itemMeta = getItemMeta();
+ boolean result = itemMeta.addEnchant(ench, level, ignoreLevelRestriction);
+ setItemMeta(itemMeta);
+ return result;
+ }
+
+ /**
+ * Removes the specified enchantment from this item meta.
+ *
+ * @param ench Enchantment to remove
+ * @return true if the item meta changed as a result of this call, false
+ * otherwise
+ */
+ public boolean removeEnchant(@NotNull Enchantment ench) {
+ ItemMeta itemMeta = getItemMeta();
+ boolean result = itemMeta.removeEnchant(ench);
+ setItemMeta(itemMeta);
+ return result;
+ }
+
+ /**
+ * Checks for the existence of any enchantments.
+ *
+ * @return true if an enchantment exists on this meta
+ */
+ public boolean hasEnchants() {
+ return hasItemMeta() && getItemMeta().hasEnchants();
+ }
+
+ /**
+ * Checks if the specified enchantment conflicts with any enchantments in
+ * this ItemMeta.
+ *
+ * @param ench enchantment to test
+ * @return true if the enchantment conflicts, false otherwise
+ */
+ public boolean hasConflictingEnchant(@NotNull Enchantment ench) {
+ return hasItemMeta() && getItemMeta().hasConflictingEnchant(ench);
+ }
+
+ /**
+ * Sets the custom model data.
+ * <p>
+ * CustomModelData is an integer that may be associated client side with a
+ * custom item model.
+ *
+ * @param data the data to set, or null to clear
+ */
+ public void setCustomModelData(@Nullable Integer data) {
+ ItemMeta itemMeta = getItemMeta();
+ itemMeta.setCustomModelData(data);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Gets the custom model data that is set.
+ * <p>
+ * CustomModelData is an integer that may be associated client side with a
+ * custom item model.
+ * <p>
+ * Plugins should check that hasCustomModelData() returns <code>true</code>
+ * before calling this method.
+ *
+ * @return the localized name that is set
+ */
+ public int getCustomModelData() {
+ return getItemMeta().getCustomModelData();
+ }
+
+ /**
+ * Checks for existence of custom model data.
+ * <p>
+ * CustomModelData is an integer that may be associated client side with a
+ * custom item model.
+ *
+ * @return true if this has custom model data
+ */
+ public boolean hasCustomModelData() {
+ return hasItemMeta() && getItemMeta().hasCustomModelData();
+ }
+
+ /**
+ * Returns whether the item has block data currently attached to it.
+ *
+ * @return whether block data is already attached
+ */
+ public boolean hasBlockData() {
+ return hasItemMeta() && ((BlockDataMeta) getItemMeta()).hasBlockData();
+ }
+
+ /**
+ * Returns the currently attached block data for this item or creates a new
+ * one if one doesn't exist.
+ *
+ * The state is a copy, it must be set back (or to another item) with
+ * {@link #setBlockData(BlockData)}
+ *
+ * @param material the material we wish to get this data in the context of
+ * @return the attached data or new data
+ */
+ @NotNull
+ public BlockData getBlockData(@NotNull Material material) {
+ return ((BlockDataMeta) getItemMeta()).getBlockData(material);
+ }
+
+ /**
+ * Attaches a copy of the passed block data to the item.
+ *
+ * @param blockData the block data to attach to the block.
+ * @throws IllegalArgumentException if the blockData is null or invalid for
+ * this item.
+ */
+ public void setBlockData(@NotNull BlockData blockData) {
+ ItemMeta itemMeta = getItemMeta();
+ ((BlockDataMeta) itemMeta).setBlockData(blockData);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Gets the repair penalty
+ *
+ * @return the repair penalty
+ */
+ public int getRepairCost() {
+ return ((Repairable) getItemMeta()).getRepairCost();
+ }
+
+ /**
+ * Sets the repair penalty
+ *
+ * @param cost repair penalty
+ */
+ public void setRepairCost(int cost) {
+ ItemMeta itemMeta = getItemMeta();
+ ((Repairable) itemMeta).setRepairCost(cost);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Checks to see if this has a repair penalty
+ *
+ * @return true if this has a repair penalty
+ */
+ public boolean hasRepairCost() {
+ return hasItemMeta() && ((Repairable) getItemMeta()).hasRepairCost();
+ }
+
+ /**
+ * Return if the unbreakable tag is true. An unbreakable item will not lose
+ * durability.
+ *
+ * @return true if the unbreakable tag is true
+ */
+ public boolean isUnbreakable() {
+ return hasItemMeta() && getItemMeta().isUnbreakable();
+ }
+
+ /**
+ * Sets the unbreakable tag. An unbreakable item will not lose durability.
+ *
+ * @param unbreakable true if set unbreakable
+ */
+ public void setUnbreakable(boolean unbreakable) {
+ ItemMeta itemMeta = getItemMeta();
+ itemMeta.setUnbreakable(unbreakable);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Checks for the existence of any AttributeModifiers.
+ *
+ * @return true if any AttributeModifiers exist
+ */
+ public boolean hasAttributeModifiers() {
+ return hasItemMeta() && getItemMeta().hasAttributeModifiers();
+ }
+
+ /**
+ * Return an immutable copy of all Attributes and
+ * their modifiers in this ItemMeta.<br>
+ * Returns null if none exist.
+ *
+ * @return an immutable {@link Multimap} of Attributes
+ * and their AttributeModifiers, or null if none exist
+ */
+ @Nullable
+ public Multimap<Attribute, AttributeModifier> getAttributeModifiers() {
+ return getItemMeta().getAttributeModifiers();
+ }
+
+ /**
+ * Return an immutable copy of all {@link Attribute}s and their
+ * {@link AttributeModifier}s for a given {@link EquipmentSlot}.<br>
+ * Any {@link AttributeModifier} that does have have a given
+ * {@link EquipmentSlot} will be returned. This is because
+ * AttributeModifiers without a slot are active in any slot.<br>
+ * If there are no attributes set for the given slot, an empty map
+ * will be returned.
+ *
+ * @param slot the {@link EquipmentSlot} to check
+ * @return the immutable {@link Multimap} with the
+ * respective Attributes and modifiers, or an empty map
+ * if no attributes are set.
+ */
+ @NotNull
+ public Multimap<Attribute, AttributeModifier> getAttributeModifiers(@Nullable EquipmentSlot slot) {
+ return getItemMeta().getAttributeModifiers(slot);
+ }
+
+ /**
+ * Return an immutable copy of all {@link AttributeModifier}s
+ * for a given {@link Attribute}
+ *
+ * @param attribute the {@link Attribute}
+ * @return an immutable collection of {@link AttributeModifier}s
+ * or null if no AttributeModifiers exist for the Attribute.
+ * @throws NullPointerException if Attribute is null
+ */
+ @Nullable
+ public Collection<AttributeModifier> getAttributeModifiers(@NotNull Attribute attribute) {
+ return getItemMeta().getAttributeModifiers(attribute);
+ }
+
+ /**
+ * Add an Attribute and it's Modifier.
+ * AttributeModifiers can now support {@link EquipmentSlot}s.
+ * If not set, the {@link AttributeModifier} will be active in ALL slots.
+ * <br>
+ * Two {@link AttributeModifier}s that have the same {@link java.util.UUID}
+ * cannot exist on the same Attribute.
+ *
+ * @param attribute the {@link Attribute} to modify
+ * @param modifier the {@link AttributeModifier} specifying the modification
+ * @return true if the Attribute and AttributeModifier were
+ * successfully added
+ * @throws NullPointerException if Attribute is null
+ * @throws NullPointerException if AttributeModifier is null
+ * @throws IllegalArgumentException if AttributeModifier already exists
+ */
+ public boolean addAttributeModifier(@NotNull Attribute attribute, @NotNull AttributeModifier modifier) {
+ ItemMeta itemMeta = getItemMeta();
+ boolean result = itemMeta.addAttributeModifier(attribute, modifier);
+ setItemMeta(itemMeta);
+ return result;
+ }
+
+ /**
+ * Set all {@link Attribute}s and their {@link AttributeModifier}s.
+ * To clear all currently set Attributes and AttributeModifiers use
+ * null or an empty Multimap.
+ * If not null nor empty, this will filter all entries that are not-null
+ * and add them to the ItemStack.
+ *
+ * @param attributeModifiers the new Multimap containing the Attributes
+ * and their AttributeModifiers
+ */
+ public void setAttributeModifiers(@Nullable Multimap<Attribute, AttributeModifier> attributeModifiers) {
+ ItemMeta itemMeta = getItemMeta();
+ itemMeta.setAttributeModifiers(attributeModifiers);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Remove all {@link AttributeModifier}s associated with the given
+ * {@link Attribute}.
+ * This will return false if nothing was removed.
+ *
+ * @param attribute attribute to remove
+ * @return true if all modifiers were removed from a given
+ * Attribute. Returns false if no attributes were
+ * removed.
+ * @throws NullPointerException if Attribute is null
+ */
+ public boolean removeAttributeModifier(@NotNull Attribute attribute) {
+ ItemMeta itemMeta = getItemMeta();
+ boolean result = itemMeta.removeAttributeModifier(attribute);
+ setItemMeta(itemMeta);
+ return result;
+ }
+
+ /**
+ * Remove all {@link Attribute}s and {@link AttributeModifier}s for a
+ * given {@link EquipmentSlot}.<br>
+ * If the given {@link EquipmentSlot} is null, this will remove all
+ * {@link AttributeModifier}s that do not have an EquipmentSlot set.
+ *
+ * @param slot the {@link EquipmentSlot} to clear all Attributes and
+ * their modifiers for
+ * @return true if all modifiers were removed that match the given
+ * EquipmentSlot.
+ */
+ public boolean removeAttributeModifier(@Nullable EquipmentSlot slot) {
+ ItemMeta itemMeta = getItemMeta();
+ boolean result = itemMeta.removeAttributeModifier(slot);
+ setItemMeta(itemMeta);
+ return result;
+ }
+
+ /**
+ * Remove a specific {@link Attribute} and {@link AttributeModifier}.
+ * AttributeModifiers are matched according to their {@link java.util.UUID}.
+ *
+ * @param attribute the {@link Attribute} to remove
+ * @param modifier the {@link AttributeModifier} to remove
+ * @return if any attribute modifiers were remove
+ *
+ * @throws NullPointerException if the Attribute is null
+ * @throws NullPointerException if the AttributeModifier is null
+ *
+ * @see AttributeModifier#getUniqueId()
+ */
+ public boolean removeAttributeModifier(@NotNull Attribute attribute, @NotNull AttributeModifier modifier) {
+ ItemMeta itemMeta = getItemMeta();
+ boolean result = itemMeta.removeAttributeModifier(attribute, modifier);
+ setItemMeta(itemMeta);
+ return result;
+ }
+
+ /**
+ * Returns a custom tag container capable of storing tags on the object.
+ *
+ * Note that the tags stored on this container are all stored under their
+ * own custom namespace therefore modifying default tags using this
+ * {@link PersistentDataHolder} is impossible.
+ *
+ * @return the persistent metadata container
+ */
+ @NotNull
+ public PersistentDataContainer getPersistentDataContainer() {
+ return getItemMeta().getPersistentDataContainer();
+ }
+
+ /**
+ * Checks to see if this item has damage
+ *
+ * @return true if this has damage
+ */
+ public boolean hasDamage() {
+ return hasItemMeta() && ((Damageable) getItemMeta()).hasDamage();
+ }
+
+ /**
+ * Gets the damage
+ *
+ * @return the damage
+ */
+ public int getDamage() {
+ return ((Damageable) getItemMeta()).getDamage();
+ }
+
+ /**
+ * Sets the damage
+ *
+ * @param damage item damage
+ */
+ public void setDamage(int damage) {
+ ItemMeta itemMeta = getItemMeta();
+ ((Damageable) itemMeta).setDamage(damage);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Gets the collection of namespaced keys that the item can destroy in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @return Set of {@link com.destroystokyo.paper.Namespaced}
+ */
+ @NotNull
+ public Set<Namespaced> getDestroyableKeys() {
+ return getItemMeta().getDestroyableKeys();
+ }
+
+ /**
+ * Sets the collection of namespaced keys that the item can destroy in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @param canDestroy Collection of {@link com.destroystokyo.paper.Namespaced}
+ */
+ public void setDestroyableKeys(@NotNull Collection<Namespaced> canDestroy) {
+ ItemMeta itemMeta = getItemMeta();
+ itemMeta.setDestroyableKeys(canDestroy);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Gets the collection of namespaced keys that the item can be placed on in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @return Set of {@link com.destroystokyo.paper.Namespaced}
+ */
+ @NotNull
+ public Set<Namespaced> getPlaceableKeys() {
+ return getItemMeta().getPlaceableKeys();
+ }
+
+ /**
+ * Sets the set of namespaced keys that the item can be placed on in {@link org.bukkit.GameMode#ADVENTURE}
+ *
+ * @param canPlaceOn Collection of {@link com.destroystokyo.paper.Namespaced}
+ */
+ @NotNull
+ public void setPlaceableKeys(@NotNull Collection<Namespaced> canPlaceOn) {
+ ItemMeta itemMeta = getItemMeta();
+ itemMeta.setPlaceableKeys(canPlaceOn);
+ setItemMeta(itemMeta);
+ }
+
+ /**
+ * Checks for the existence of any keys that the item can be placed on
+ *
+ * @return true if this item has placeable keys
+ */
+ public boolean hasPlaceableKeys() {
+ return hasItemMeta() && getItemMeta().hasPlaceableKeys();
+ }
+
+ /**
+ * Checks for the existence of any keys that the item can destroy
+ *
+ * @return true if this item has destroyable keys
+ */
+ public boolean hasDestroyableKeys() {
+ return hasItemMeta() && getItemMeta().hasDestroyableKeys();
+ }
+
+ /**
+ * Repairs this item by 1 durability
+ */
+ public void repair() {
+ repair(1);
+ }
+
+ /**
+ * Damages this item by 1 durability
+ *
+ * @return True if damage broke the item
+ */
+ public boolean damage() {
+ return damage(1);
+ }
+
+ /**
+ * Repairs this item's durability by amount
+ *
+ * @param amount Amount of durability to repair
+ */
+ public void repair(int amount) {
+ damage(-amount);
+ }
+
+ /**
+ * Damages this item's durability by amount
+ *
+ * @param amount Amount of durability to damage
+ * @return True if damage broke the item
+ */
+ public boolean damage(int amount) {
+ return damage(amount, false);
+ }
+
+ /**
+ * Damages this item's durability by amount
+ *
+ * @param amount Amount of durability to damage
+ * @param ignoreUnbreaking Ignores unbreaking enchantment
+ * @return True if damage broke the item
+ */
+ public boolean damage(int amount, boolean ignoreUnbreaking) {
+ Damageable damageable = (Damageable) getItemMeta();
+ if (amount > 0) {
+ int unbreaking = getEnchantLevel(Enchantment.DURABILITY);
+ int reduce = 0;
+ for (int i = 0; unbreaking > 0 && i < amount; ++i) {
+ if (reduceDamage(java.util.concurrent.ThreadLocalRandom.current(), unbreaking)) {
+ ++reduce;
+ }
+ }
+ amount -= reduce;
+ if (amount <= 0) {
+ return isBroke(damageable.getDamage());
+ }
+ }
+ int damage = damageable.getDamage() + amount;
+ damageable.setDamage(damage);
+ setItemMeta((ItemMeta) damageable);
+ return isBroke(damage);
+ }
+
+ public boolean isBroke(int damage) {
+ if (damage > getType().getMaxDurability()) {
+ if (getAmount() > 0) {
+ // ensure it "breaks"
+ setAmount(0);
+ }
+ return true;
+ }
+ return false;
+ }
+
+ private boolean reduceDamage(java.util.Random random, int unbreaking) {
+ if (getType().isArmor()) {
+ return random.nextFloat() < 0.6F;
+ }
+ return random.nextInt(unbreaking + 1) > 0;
+ }
+ // Purpur end
}
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