Added packets with hats

src/main/java/io/github/fisher2911/hmccosmetics/util/Keys.java

@@ -0,0 +1,41 @@
+package io.github.fisher2911.hmccosmetics.util;
+
+import io.github.fisher2911.hmccosmetics.HMCCosmetics;
+import org.bukkit.NamespacedKey;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.persistence.PersistentDataType;
+
+public class Keys {
+
+    static HMCCosmetics plugin;
+
+    static {
+        plugin = HMCCosmetics.getPlugin(HMCCosmetics.class);
+    }
+
+    public static final NamespacedKey ITEM_KEY = new NamespacedKey(plugin, "cosmetic");
+
+    public static void setKey(final ItemStack itemStack) {
+        final ItemMeta itemMeta = itemStack.getItemMeta();
+
+        if (itemMeta == null) {
+            return;
+        }
+
+        itemMeta.getPersistentDataContainer().set(ITEM_KEY, PersistentDataType.BYTE, (byte) 1);
+
+        itemStack.setItemMeta(itemMeta);
+    }
+
+    public static boolean hasKey(final ItemStack itemStack) {
+        final ItemMeta itemMeta = itemStack.getItemMeta();
+
+        if (itemMeta == null) {
+            return false;
+        }
+
+        return itemMeta.getPersistentDataContainer().has(ITEM_KEY, PersistentDataType.BYTE);
+    }
+
+}

src/main/java/io/github/fisher2911/hmccosmetics/util/builder/ItemBuilder.java

@@ -73,11 +73,17 @@ public class ItemBuilder {
      */
 
     public ItemBuilder name(final String name) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         this.itemMeta.setDisplayName(name);
         return this;
     }
 
     public ItemBuilder name(final Component name) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         this.itemMeta.displayName(name);
         return this;
     }
@@ -89,6 +95,9 @@ public class ItemBuilder {
      */
 
     public ItemBuilder namePlaceholders(final Map<String, String> placeholders) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         final String name = StringUtils.
                 applyPlaceholders(this.itemMeta.getDisplayName(), placeholders);
         this.itemMeta.displayName(
@@ -103,6 +112,9 @@ public class ItemBuilder {
      */
 
     public ItemBuilder lore(final List<String> lore) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         this.itemMeta.setLore(lore);
         return this;
     }
@@ -115,6 +127,9 @@ public class ItemBuilder {
 
 
     public ItemBuilder lorePlaceholders(final Map<String, String> placeholders) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         final List<String> lore = new ArrayList<>();
 
         final List<String> previousLore = this.itemMeta.getLore();
@@ -139,11 +154,17 @@ public class ItemBuilder {
      */
 
     public ItemBuilder unbreakable(final boolean unbreakable) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         this.itemMeta.setUnbreakable(unbreakable);
         return this;
     }
 
     public ItemBuilder glow(final boolean glow) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         if (glow) {
             this.itemMeta.addItemFlags(ItemFlag.HIDE_ENCHANTS);
             this.itemMeta.addEnchant(Enchantment.LUCK, 1, true);
@@ -158,6 +179,9 @@ public class ItemBuilder {
      */
 
     public ItemBuilder enchants(final Map<Enchantment, Integer> enchantments, boolean ignoreLeveLRestrictions) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         enchantments.forEach((enchantment, level) -> this.itemMeta.addEnchant(enchantment, level, ignoreLeveLRestrictions));
         return this;
     }
@@ -168,6 +192,9 @@ public class ItemBuilder {
      */
 
     public ItemBuilder itemFlags(final Set<ItemFlag> itemFlags) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         this.itemMeta.addItemFlags(itemFlags.toArray(new ItemFlag[0]));
         return this;
     }
@@ -178,6 +205,9 @@ public class ItemBuilder {
      */
 
     public ItemBuilder modelData(final int modelData) {
+        if (this.itemMeta == null) {
+            return this;
+        }
         this.itemMeta.setCustomModelData(modelData);
         return this;
     }