From 1917305f97416e8db24c3392f75aa41a8b739a46 Mon Sep 17 00:00:00 2001
From: Bukkit/Spigot <noreply+git-bukkit@papermc.io>
Date: Sun, 14 Dec 2014 16:24:09 +0100
Subject: [PATCH] API for setting/removing hideflags on ItemStacks
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

By: Fabian Faßbender <fabian.fassbender42@googlemail.com>
---
 .../java/org/bukkit/inventory/ItemFlag.java   | 32 +++++++++++++++++++
 .../org/bukkit/inventory/meta/ItemMeta.java   | 31 ++++++++++++++++++
 2 files changed, 63 insertions(+)
 create mode 100644 paper-api/src/main/java/org/bukkit/inventory/ItemFlag.java

diff --git a/paper-api/src/main/java/org/bukkit/inventory/ItemFlag.java b/paper-api/src/main/java/org/bukkit/inventory/ItemFlag.java
new file mode 100644
index 0000000000..2a8af7ba84
--- /dev/null
+++ b/paper-api/src/main/java/org/bukkit/inventory/ItemFlag.java
@@ -0,0 +1,32 @@
+package org.bukkit.inventory;
+
+/**
+ * A ItemFlag can hide some Attributes from ItemStacks
+ */
+public enum ItemFlag {
+
+    /**
+     * Setting to show/hide enchants
+     */
+    HIDE_ENCHANTS,
+    /**
+     * Setting to show/hide Attributes like Damage
+     */
+    HIDE_ATTRIBUTES,
+    /**
+     * Setting to show/hide the unbreakable State
+     */
+    HIDE_UNBREAKABLE,
+    /**
+     * Setting to show/hide what the ItemStack can break/destroy
+     */
+    HIDE_DESTROYS,
+    /**
+     * Setting to show/hide where this ItemStack can be build/placed on
+     */
+    HIDE_PLACED_ON,
+    /**
+     * Setting to show/hide potion effects on this ItemStack
+     */
+    HIDE_POTION_EFFECTS;
+}
diff --git a/paper-api/src/main/java/org/bukkit/inventory/meta/ItemMeta.java b/paper-api/src/main/java/org/bukkit/inventory/meta/ItemMeta.java
index 00f71ce2e9..459e09ca5a 100644
--- a/paper-api/src/main/java/org/bukkit/inventory/meta/ItemMeta.java
+++ b/paper-api/src/main/java/org/bukkit/inventory/meta/ItemMeta.java
@@ -2,9 +2,11 @@ package org.bukkit.inventory.meta;
 
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
 
 import org.bukkit.configuration.serialization.ConfigurationSerializable;
 import org.bukkit.enchantments.Enchantment;
+import org.bukkit.inventory.ItemFlag;
 
 /**
  * This type represents the storage mechanism for auxiliary item data.
@@ -124,6 +126,35 @@ public interface ItemMeta extends Cloneable, ConfigurationSerializable {
     */
     boolean hasConflictingEnchant(Enchantment ench);
 
+    /**
+     * Set itemflags which should be ignored when rendering a ItemStack in the Client. This Method does silently ignore double set itemFlags.
+     *
+     * @param itemFlags The hideflags which shouldn't be rendered
+     */
+    void addItemFlags(ItemFlag... itemFlags);
+
+    /**
+     * Remove specific set of itemFlags. This tells the Client it should render it again. This Method does silently ignore double removed itemFlags.
+     *
+     * @param itemFlags Hideflags which should be removed
+     */
+    void removeItemFlags(ItemFlag... itemFlags);
+
+    /**
+     * Get current set itemFlags. The collection returned is unmodifiable.
+     *
+     * @return A set of all itemFlags set
+     */
+    Set<ItemFlag> getItemFlags();
+
+    /**
+     * Check if the specified flag is present on this item.
+     *
+     * @param flag the flag to check
+     * @return if it is present
+     */
+    boolean hasItemFlag(ItemFlag flag);
+
     @SuppressWarnings("javadoc")
     ItemMeta clone();
 }