Added translations and toggling helmet / off hand requiring empty slots

src/main/java/io/github/fisher2911/hmccosmetics/HMCCosmetics.java

@@ -5,6 +5,7 @@ import com.comphenix.protocol.ProtocolManager;
 
 import io.github.fisher2911.hmccosmetics.command.CosmeticsCommand;
 import io.github.fisher2911.hmccosmetics.concurrent.Threads;
+import io.github.fisher2911.hmccosmetics.config.Settings;
 import io.github.fisher2911.hmccosmetics.cosmetic.CosmeticManager;
 import io.github.fisher2911.hmccosmetics.database.Database;
 import io.github.fisher2911.hmccosmetics.database.DatabaseFactory;
@@ -15,6 +16,7 @@ import io.github.fisher2911.hmccosmetics.hook.item.ItemsAdderHook;
 import io.github.fisher2911.hmccosmetics.listener.*;
 import io.github.fisher2911.hmccosmetics.message.MessageHandler;
 import io.github.fisher2911.hmccosmetics.message.Messages;
+import io.github.fisher2911.hmccosmetics.message.Translation;
 import io.github.fisher2911.hmccosmetics.user.UserManager;
 import me.mattstudios.mf.base.CommandManager;
 import org.bstats.bukkit.Metrics;
@@ -28,11 +30,13 @@ import java.sql.SQLException;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Set;
 import java.util.stream.Collectors;
 
 public class HMCCosmetics extends JavaPlugin {
 
     private ProtocolManager protocolManager;
+    private Settings settings;
     private UserManager userManager;
     private CosmeticManager cosmeticManager;
     private MessageHandler messageHandler;
@@ -48,6 +52,7 @@ public class HMCCosmetics extends JavaPlugin {
         final Metrics metrics = new Metrics(this, pluginId);
 
         protocolManager = ProtocolLibrary.getProtocolManager();
+        this.settings = new Settings(this);
         this.messageHandler = new MessageHandler(this);
         this.userManager = new UserManager(this);
         this.cosmeticManager = new CosmeticManager(new HashMap<>());
@@ -130,12 +135,28 @@ public class HMCCosmetics extends JavaPlugin {
     public void load() {
         Bukkit.getScheduler().runTaskAsynchronously(this,
                 () -> {
+                    this.settings.load();
                     this.messageHandler.load();
                     this.cosmeticsMenu.load();
+                    Translation.getInstance().load();
                     this.database.load();
                 });
     }
 
+    public void reload() {
+        Bukkit.getScheduler().runTaskAsynchronously(this,
+                () -> {
+                    this.settings.load();
+                    this.messageHandler.load();
+                    this.cosmeticsMenu.reload();
+                    Translation.getInstance().load();
+                });
+    }
+
+    public Settings getSettings() {
+        return settings;
+    }
+
     public MessageHandler getMessageHandler() {
         return messageHandler;
     }

src/main/java/io/github/fisher2911/hmccosmetics/command/CosmeticsCommand.java

@@ -51,8 +51,7 @@ public class CosmeticsCommand extends CommandBase {
         Bukkit.getScheduler().runTaskAsynchronously(
                 this.plugin,
                 () -> {
-                    this.cosmeticsMenu.reload();
-                    this.plugin.getMessageHandler().load();
+                    this.plugin.reload();
                     this.messageHandler.sendMessage(
                             sender,
                             Messages.RELOADED

src/main/java/io/github/fisher2911/hmccosmetics/config/CosmeticSettings.java

@@ -0,0 +1,47 @@
+package io.github.fisher2911.hmccosmetics.config;
+
+import io.github.fisher2911.hmccosmetics.HMCCosmetics;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.inventory.EquipmentSlot;
+import org.spongepowered.configurate.objectmapping.ConfigSerializable;
+import org.spongepowered.configurate.objectmapping.meta.Setting;
+
+@ConfigSerializable
+public class CosmeticSettings {
+
+    private static final transient String COSMETIC_SETTINGS_PATH = "cosmetic-settings";
+    private static final transient String REQUIRE_EMPTY_HELMET_PATH = "require-empty-helmet";
+    private static final transient String REQUIRE_EMPTY_OFF_HAND_PATH = "require-empty-off-hand";
+
+    private boolean requireEmptyHelmet;
+    private boolean requireEmptyOffHand;
+
+    public void load(final FileConfiguration config) {
+        this.requireEmptyHelmet = config.getBoolean(COSMETIC_SETTINGS_PATH + "." + REQUIRE_EMPTY_HELMET_PATH);
+        this.requireEmptyOffHand = config.getBoolean(COSMETIC_SETTINGS_PATH + "." + REQUIRE_EMPTY_OFF_HAND_PATH);
+    }
+
+    public boolean isRequireEmptyHelmet() {
+        return requireEmptyHelmet;
+    }
+
+    public boolean isRequireEmptyOffHand() {
+        return requireEmptyOffHand;
+    }
+
+    public void setRequireEmptyHelmet(final boolean requireEmptyHelmet) {
+        this.requireEmptyHelmet = requireEmptyHelmet;
+    }
+
+    public void setRequireEmptyOffHand(final boolean requireEmptyOffHand) {
+        this.requireEmptyOffHand = requireEmptyOffHand;
+    }
+
+    public boolean requireEmpty(final EquipmentSlot slot) {
+        return switch (slot) {
+            case OFF_HAND -> this.isRequireEmptyOffHand();
+            case HEAD -> this.isRequireEmptyHelmet();
+            default -> false;
+        };
+    }
+}

src/main/java/io/github/fisher2911/hmccosmetics/config/Settings.java

@@ -0,0 +1,25 @@
+package io.github.fisher2911.hmccosmetics.config;
+
+import io.github.fisher2911.hmccosmetics.HMCCosmetics;
+import org.bukkit.Bukkit;
+
+public class Settings {
+
+    private final HMCCosmetics plugin;
+    private final CosmeticSettings settings;
+
+    public Settings(final HMCCosmetics plugin) {
+        this.plugin = plugin;
+        this.settings = new CosmeticSettings();
+    }
+
+    public void load() {
+        this.plugin.saveDefaultConfig();
+        this.plugin.reloadConfig();
+        this.settings.load(this.plugin.getConfig());
+    }
+
+    public CosmeticSettings getCosmeticSettings() {
+        return settings;
+    }
+}

src/main/java/io/github/fisher2911/hmccosmetics/gui/CosmeticGui.java

@@ -117,7 +117,7 @@ public class CosmeticGui {
         final User user = optionalUser.get();
 
         this.gui = Gui.gui().
-                title(Adventure.MINI_MESSAGE.parse(StringUtils.applyPapiPlaceholders(user.getPlayer(), this.title))).
+                title(Adventure.MINI_MESSAGE.parse(Placeholder.applyPapiPlaceholders(user.getPlayer(), this.title))).
                 rows(this.rows).
                 create();
 

src/main/java/io/github/fisher2911/hmccosmetics/gui/CosmeticsMenu.java

@@ -50,6 +50,9 @@ public class CosmeticsMenu {
     }
 
     public void reload() {
+        for (final ArmorItem armorItem : this.cosmeticManager.getAll()) {
+            Bukkit.getPluginManager().removePermission(new Permission(armorItem.getPermission()));
+        }
         this.load();
     }
 

src/main/java/io/github/fisher2911/hmccosmetics/gui/DyeSelectorGui.java

@@ -7,6 +7,7 @@ import dev.triumphteam.gui.guis.GuiItem;
 import io.github.fisher2911.hmccosmetics.HMCCosmetics;
 import io.github.fisher2911.hmccosmetics.database.dao.ArmorItemDAO;
 import io.github.fisher2911.hmccosmetics.inventory.PlayerArmor;
+import io.github.fisher2911.hmccosmetics.message.Placeholder;
 import io.github.fisher2911.hmccosmetics.user.User;
 import io.github.fisher2911.hmccosmetics.util.StringUtils;
 import io.github.fisher2911.hmccosmetics.util.builder.ItemBuilder;
@@ -45,7 +46,7 @@ public class DyeSelectorGui extends CosmeticGui {
 
     public Gui getGui(final User user, @Nullable final ArmorItem.Type type) {
         this.gui = Gui.gui().
-                title(Component.text(StringUtils.applyPapiPlaceholders(user.getPlayer(), this.title))).
+                title(Component.text(Placeholder.applyPapiPlaceholders(user.getPlayer(), this.title))).
                 rows(rows).
                 create();
 

src/main/java/io/github/fisher2911/hmccosmetics/listener/ClickListener.java

@@ -8,6 +8,8 @@ import io.github.fisher2911.hmccosmetics.user.UserManager;
 import io.th0rgal.oraxen.utils.armorequipevent.ArmorEquipEvent;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.block.CreatureSpawner;
 import org.bukkit.entity.HumanEntity;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;

src/main/java/io/github/fisher2911/hmccosmetics/message/MessageHandler.java

@@ -48,7 +48,7 @@ public class MessageHandler {
     public void sendMessage(final CommandSender sender, final Message key, final Map<String, String> placeholders) {
         final String message = this.getPapiPlaceholders(
                 sender,
-                StringUtils.applyPlaceholders(this.getMessage(key), placeholders)
+                Placeholder.applyPlaceholders(this.getMessage(key), placeholders)
         );
         final Component component = Adventure.MINI_MESSAGE.parse(message);
         this.adventure.sender(sender).sendMessage(component);
@@ -72,7 +72,7 @@ public class MessageHandler {
     public void sendActionBar(final Player player, final Message key, final Map<String, String> placeholders) {
         final String message = this.getPapiPlaceholders(
                 player,
-                StringUtils.applyPlaceholders(this.getMessage(key), placeholders)
+                Placeholder.applyPlaceholders(this.getMessage(key), placeholders)
         );
         Component component = Adventure.MINI_MESSAGE.parse(message);
         this.adventure.player(player).sendActionBar(component);
@@ -96,7 +96,7 @@ public class MessageHandler {
     public void sendTitle(final Player player, final Message key, final Map<String, String> placeholders) {
         final String message = this.getPapiPlaceholders(
                 player,
-                StringUtils.applyPlaceholders(this.getMessage(key), placeholders)
+                Placeholder.applyPlaceholders(this.getMessage(key), placeholders)
         );
         Component component = Adventure.MINI_MESSAGE.parse(message);
         this.adventure.player(player).showTitle(Title.title(component, Component.empty()));
@@ -158,9 +158,9 @@ public class MessageHandler {
 
     private String getPapiPlaceholders(final CommandSender sender, final String message) {
             if (sender instanceof final Player player) {
-                return StringUtils.applyPapiPlaceholders(player, message);
+                return Placeholder.applyPapiPlaceholders(player, message);
             }
-            return StringUtils.applyPapiPlaceholders(null, message);
+            return Placeholder.applyPapiPlaceholders(null, message);
         }
 
 }

src/main/java/io/github/fisher2911/hmccosmetics/message/Placeholder.java

@@ -1,5 +1,12 @@
 package io.github.fisher2911.hmccosmetics.message;
 
+import io.github.fisher2911.hmccosmetics.hook.HookManager;
+import io.github.fisher2911.hmccosmetics.hook.PAPIHook;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Map;
+
 public class Placeholder {
 
     public static final String PREFIX = "%prefix%";
@@ -11,4 +18,24 @@ public class Placeholder {
     public static final String ENABLED = "%enabled%";
     public static final String ALLOWED = "%allowed%";
 
+    /**
+     * @param message      message being translated
+     * @param placeholders placeholders applied
+     * @return message with placeholders applied
+     */
+
+    public static String applyPlaceholders(String message, final Map<String, String> placeholders) {
+        for (final Map.Entry<String, String> entry : placeholders.entrySet()) {
+            message = message.replace(entry.getKey(), Translation.translate(entry.getValue()));
+        }
+        return message;
+    }
+
+    public static String applyPapiPlaceholders(@Nullable final Player player, final String message) {
+        if (HookManager.getInstance().isEnabled(PAPIHook.class)) {
+            return HookManager.getInstance().getPapiHook().parse(player, message);
+        }
+
+        return message;
+    }
 }

src/main/java/io/github/fisher2911/hmccosmetics/message/Translation.java

@@ -0,0 +1,56 @@
+package io.github.fisher2911.hmccosmetics.message;
+
+import io.github.fisher2911.hmccosmetics.HMCCosmetics;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+
+import java.io.File;
+import java.util.HashMap;
+import java.util.Map;
+
+public class Translation {
+
+    private static final Translation INSTANCE;
+
+    static {
+        INSTANCE = new Translation(HMCCosmetics.getPlugin(HMCCosmetics.class));
+    }
+
+    public static Translation getInstance() {
+        return INSTANCE;
+    }
+
+    private final HMCCosmetics plugin;
+    private final Map<String, String> translations;
+
+    public Translation(final HMCCosmetics plugin) {
+        this.translations = new HashMap<>();
+        this.plugin = plugin;
+    }
+
+    private static final String FILE_NAME = "translations.yml";
+    private static final String TRANSLATION_PATH = "translations";
+
+    public void load() {
+        final File file = new File(this.plugin.getDataFolder(), FILE_NAME);
+        if (!file.exists()) {
+            this.plugin.saveResource(FILE_NAME, false);
+        }
+
+        final FileConfiguration config = YamlConfiguration.loadConfiguration(file);
+
+        final ConfigurationSection section = config.getConfigurationSection(TRANSLATION_PATH);
+
+        if (section == null) return;
+
+        for (final String key : section.getKeys(false)) {
+            this.translations.put(key, section.getString(key));
+        }
+    }
+
+    public static String translate(final String key) {
+        return INSTANCE.translations.getOrDefault(key, key);
+    }
+
+}

src/main/java/io/github/fisher2911/hmccosmetics/packet/PacketManager.java

@@ -0,0 +1,107 @@
+package io.github.fisher2911.hmccosmetics.packet;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.ProtocolManager;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.wrappers.EnumWrappers;
+import com.comphenix.protocol.wrappers.Pair;
+import it.unimi.dsi.fastutil.ints.IntArrayList;
+import net.minecraft.network.protocol.Packet;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.entity.EntityType;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class PacketManager {
+
+    private static final ProtocolManager protocolManager;
+
+    static {
+        protocolManager = ProtocolLibrary.getProtocolManager();
+    }
+
+    public static PacketContainer getEntitySpawnPacket(final Location location, final int entityId, final EntityType entityType) {
+        final ProtocolManager protocolManager = ProtocolLibrary.getProtocolManager();
+
+        final PacketContainer packet = new PacketContainer(PacketType.Play.Server.SPAWN_ENTITY);
+
+        // Entity ID
+        packet.getIntegers().write(0, entityId);
+        // Entity Type
+//        packet.getIntegers().write(6, 78);
+        // Set yaw pitch
+        packet.getIntegers().write(4, (int) location.getPitch());
+        packet.getIntegers().write(5, (int) location.getYaw());
+        // Set location
+        packet.getDoubles().write(0, location.getX());
+        packet.getDoubles().write(1, location.getY());
+        packet.getDoubles().write(2, location.getZ());
+        // Set UUID
+        packet.getUUIDs().write(0, UUID.randomUUID());
+
+        packet.getEntityTypeModifier().write(0, entityType);
+
+        return packet;
+    }
+
+    public static PacketContainer getEquipmentPacket(
+            final List<Pair<EnumWrappers.ItemSlot, ItemStack>> equipmentList,
+            final int entityId
+            ) {
+
+        final PacketContainer armorPacket = new PacketContainer(PacketType.Play.Server.ENTITY_EQUIPMENT);
+        armorPacket.getIntegers().write(0, entityId);
+        armorPacket.getSlotStackPairLists().write(0, equipmentList);
+
+        return armorPacket;
+    }
+
+    public static PacketContainer getRotationPacket(final int entityId, final Location location) {
+        final PacketContainer rotationPacket = new PacketContainer(PacketType.Play.Server.ENTITY_HEAD_ROTATION);
+
+        rotationPacket.getIntegers().write(0, entityId);
+        rotationPacket.getBytes().write(0, (byte) (location.getYaw() * 256 / 360));
+
+        return rotationPacket;
+    }
+
+    public static PacketContainer getRidingPacket(final int mountId, final int passengerId) {
+        final PacketContainer ridingPacket = new PacketContainer(PacketType.Play.Server.MOUNT);
+        ridingPacket.
+                getIntegers().
+                write(0, mountId);
+        ridingPacket.getIntegerArrays().write(0, new int[]{passengerId});
+
+        return ridingPacket;
+    }
+
+    public static PacketContainer getEntityDestroyPacket(final int entityId) {
+        final PacketContainer destroyPacket = new PacketContainer(PacketType.Play.Server.ENTITY_DESTROY);
+        destroyPacket.getModifier().write(0, new IntArrayList(new int[]{entityId}));
+
+        return destroyPacket;
+    }
+
+    public static void sendPacket(final Player to, final PacketContainer... packets) {
+        try {
+            for (final PacketContainer packet : packets) {
+                protocolManager.sendServerPacket(to, packet);
+            }
+        } catch (final InvocationTargetException exception) {
+            exception.printStackTrace();
+        }
+    }
+
+    public static void sendPacketToOnline(final PacketContainer... packets) {
+        for (final Player player : Bukkit.getOnlinePlayers()) {
+            sendPacket(player, packets);
+        }
+    }
+}

src/main/java/io/github/fisher2911/hmccosmetics/user/User.java

@@ -1,8 +1,6 @@
 package io.github.fisher2911.hmccosmetics.user;
 
 import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.ProtocolLibrary;
-import com.comphenix.protocol.ProtocolManager;
 import com.comphenix.protocol.events.PacketContainer;
 import com.comphenix.protocol.wrappers.EnumWrappers;
 import com.comphenix.protocol.wrappers.Pair;
@@ -10,7 +8,7 @@ import com.comphenix.protocol.wrappers.WrappedDataWatcher;
 import com.comphenix.protocol.wrappers.WrappedDataWatcher.Serializer;
 import io.github.fisher2911.hmccosmetics.gui.ArmorItem;
 import io.github.fisher2911.hmccosmetics.inventory.PlayerArmor;
-import it.unimi.dsi.fastutil.ints.IntArrayList;
+import io.github.fisher2911.hmccosmetics.packet.PacketManager;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.entity.EntityType;
@@ -18,7 +16,6 @@ import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
 import org.jetbrains.annotations.Nullable;
 
-import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
@@ -76,8 +73,6 @@ public class User {
         return this.setItem(ArmorItem.empty(type));
     }
 
-    // return true if backpack was set
-
     public void spawnArmorStand(final Player other) {
         final Player player = this.getPlayer();
 
@@ -85,31 +80,9 @@ public class User {
 
         final Location location = player.getLocation();
 
-        final ProtocolManager protocolManager = ProtocolLibrary.getProtocolManager();
+        final PacketContainer packet = PacketManager.getEntitySpawnPacket(location, this.armorStandId, EntityType.ARMOR_STAND);
 
-        final PacketContainer packet = new PacketContainer(PacketType.Play.Server.SPAWN_ENTITY);
-
-        // Entity ID
-        packet.getIntegers().write(0, this.armorStandId);
-        // Entity Type
-//        packet.getIntegers().write(6, 78);
-        // Set yaw pitch
-        packet.getIntegers().write(4, (int) location.getPitch());
-        packet.getIntegers().write(5, (int) location.getYaw());
-        // Set location
-        packet.getDoubles().write(0, location.getX());
-        packet.getDoubles().write(1, location.getY());
-        packet.getDoubles().write(2, location.getZ());
-        // Set UUID
-        packet.getUUIDs().write(0, UUID.randomUUID());
-
-        packet.getEntityTypeModifier().write(0, EntityType.ARMOR_STAND);
-
-        try {
-            protocolManager.sendServerPacket(other, packet);
-        } catch (final InvocationTargetException exception) {
-            exception.printStackTrace();
-        }
+        PacketManager.sendPacket(player, packet);
     }
 
     public void spawnArmorStand() {
@@ -136,17 +109,16 @@ public class User {
         if (player == null) return;
 
         final List<Pair<EnumWrappers.ItemSlot, ItemStack>> equipmentList = new ArrayList<>();
-
         equipmentList.add(new Pair<>(EnumWrappers.ItemSlot.HEAD,
                 this.playerArmor.getBackpack().getColored()
         ));
 
-        final PacketContainer armorPacket = new PacketContainer(PacketType.Play.Server.ENTITY_EQUIPMENT);
-        armorPacket.getIntegers().write(0, this.armorStandId);
-        armorPacket.getSlotStackPairLists().write(0, equipmentList);
-
         final Location location = player.getLocation();
 
+        final PacketContainer armorPacket = PacketManager.getEquipmentPacket(equipmentList, this.armorStandId);
+        final PacketContainer rotationPacket = PacketManager.getRotationPacket(this.armorStandId, location);
+        final PacketContainer ridingPacket = PacketManager.getRidingPacket(player.getEntityId(), this.armorStandId);
+
         final PacketContainer metaContainer = new PacketContainer(PacketType.Play.Server.ENTITY_METADATA);
 
         WrappedDataWatcher metaData = new WrappedDataWatcher();
@@ -156,48 +128,14 @@ public class User {
         metaData.setObject(new WrappedDataWatcher.WrappedDataWatcherObject(0, byteSerializer), (byte) (0x20));
         metaData.setObject(new WrappedDataWatcher.WrappedDataWatcherObject(15, byteSerializer), (byte) (0x10));
 
-        final PacketContainer rotationPacket = new PacketContainer(PacketType.Play.Server.ENTITY_HEAD_ROTATION);
-
-        rotationPacket.getIntegers().write(0, this.armorStandId);
-        rotationPacket.getBytes().write(0, (byte) (location.getYaw() * 256 / 360));
-
         metaContainer.getIntegers().write(0, this.armorStandId);
         metaContainer.getWatchableCollectionModifier().write(0, metaData.getWatchableObjects());
 
-        final PacketContainer ridingPacket = new PacketContainer(PacketType.Play.Server.MOUNT);
-        ridingPacket.
-                getIntegers().
-                write(0, player.getEntityId());
-        ridingPacket.getIntegerArrays().write(0, new int[]{this.armorStandId});
-
-        final ProtocolManager protocolManager = ProtocolLibrary.getProtocolManager();
-
-        try {
-            for (final Player p : Bukkit.getOnlinePlayers()) {
-                protocolManager.sendServerPacket(p, armorPacket);
-                protocolManager.sendServerPacket(p, metaContainer);
-                protocolManager.sendServerPacket(p, rotationPacket);
-                protocolManager.sendServerPacket(p, ridingPacket);
-            }
-        } catch (final InvocationTargetException exception) {
-            exception.printStackTrace();
-        }
+        PacketManager.sendPacketToOnline(armorPacket, metaContainer, rotationPacket, ridingPacket);
     }
 
     public void despawnAttached() {
-        final ProtocolManager protocolManager = ProtocolLibrary.getProtocolManager();
-
-        final PacketContainer destroyPacket = new PacketContainer(PacketType.Play.Server.ENTITY_DESTROY);
-        destroyPacket.getModifier().write(0, new IntArrayList(new int[]{this.armorStandId}));
-
-        for (final Player p : Bukkit.getOnlinePlayers()) {
-            try {
-                protocolManager.sendServerPacket(p, destroyPacket);
-                this.hasArmorStand = false;
-            } catch (final InvocationTargetException exception) {
-                exception.printStackTrace();
-            }
-        }
+        PacketManager.sendPacketToOnline(PacketManager.getEntityDestroyPacket(this.armorStandId));
     }
 
     public boolean hasArmorStand() {

src/main/java/io/github/fisher2911/hmccosmetics/user/UserManager.java

@@ -1,23 +1,18 @@
 package io.github.fisher2911.hmccosmetics.user;
 
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.ProtocolLibrary;
-import com.comphenix.protocol.ProtocolManager;
-import com.comphenix.protocol.events.ListenerPriority;
-import com.comphenix.protocol.events.PacketAdapter;
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
 import com.comphenix.protocol.wrappers.EnumWrappers;
 import com.comphenix.protocol.wrappers.Pair;
 import com.comphenix.protocol.wrappers.WrappedDataWatcher;
 import io.github.fisher2911.hmccosmetics.HMCCosmetics;
 import io.github.fisher2911.hmccosmetics.concurrent.Threads;
+import io.github.fisher2911.hmccosmetics.config.CosmeticSettings;
+import io.github.fisher2911.hmccosmetics.config.Settings;
 import io.github.fisher2911.hmccosmetics.gui.ArmorItem;
 import io.github.fisher2911.hmccosmetics.inventory.PlayerArmor;
 import io.github.fisher2911.hmccosmetics.message.Message;
 import io.github.fisher2911.hmccosmetics.message.MessageHandler;
 import io.github.fisher2911.hmccosmetics.message.Placeholder;
-import io.github.fisher2911.hmccosmetics.util.Keys;
+import io.github.fisher2911.hmccosmetics.packet.PacketManager;
 import io.github.fisher2911.hmccosmetics.util.builder.ItemBuilder;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
@@ -27,7 +22,6 @@ import org.bukkit.inventory.EquipmentSlot;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.scheduler.BukkitTask;
 
-import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
@@ -35,21 +29,23 @@ import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
 
 public class UserManager {
 
     private final HMCCosmetics plugin;
+    private final Settings settings;
     private final MessageHandler messageHandler;
 
-    private final Map<UUID, User> userMap = new HashMap<>();
+    private final Map<UUID, User> userMap = new ConcurrentHashMap<>();
     private final Map<Integer, User> armorStandIdMap = new HashMap<>();
 
     private BukkitTask teleportTask;
 
     public UserManager(final HMCCosmetics plugin) {
         this.plugin = plugin;
+        this.settings = this.plugin.getSettings();
         this.messageHandler = this.plugin.getMessageHandler();
-        this.registerPacketListener();
     }
 
     public void add(final User user) {
@@ -89,7 +85,11 @@ public class UserManager {
         WrappedDataWatcher.Registry.get(Byte.class);
         this.teleportTask = Bukkit.getScheduler().runTaskTimerAsynchronously(
                 this.plugin,
-                () -> this.userMap.values().forEach(User::updateArmorStand),
+                () -> {
+                    for (final User user : this.userMap.values()) {
+                        user.updateArmorStand();
+                    }
+                },
                 1,
                 1
         );
@@ -102,53 +102,6 @@ public class UserManager {
         }
     }
 
-    private void registerPacketListener() {
-        final ProtocolManager protocolManager = this.plugin.getProtocolManager();
-        protocolManager.addPacketListener(new PacketAdapter(
-                this.plugin,
-                ListenerPriority.NORMAL,
-                PacketType.Play.Server.ENTITY_EQUIPMENT) {
-            @Override
-            public void onPacketReceiving(PacketEvent event) {
-
-            }
-
-            @Override
-            public void onPacketSending(final PacketEvent event) {
-                if (event.getPacketType() == PacketType.Play.Server.ENTITY_EQUIPMENT) {
-                    final int id = event.getPacket().getIntegers().read(0);
-
-                    for (final var entry : event.getPacket().getSlotStackPairLists().getValues().get(0)) {
-                        if (entry.getFirst() != EnumWrappers.ItemSlot.HEAD) {
-                            continue;
-                        }
-                        for (final Player p : Bukkit.getOnlinePlayers()) {
-                            if (p.getEntityId() != id) {
-                                continue;
-                            }
-
-                            final User user = userMap.get(p.getUniqueId());
-
-                            if (user == null) {
-                                break;
-                            }
-
-                            final ItemStack hat = user.getPlayerArmor().getHat().getItemStack();
-                            final ItemStack second = entry.getSecond();
-
-                            if (hat != null && hat
-                                    .getType() != Material.AIR &&
-                                    second != null &&
-                                    !Keys.hasKey(second)) {
-                                event.setCancelled(true);
-                            }
-                        }
-                    }
-                }
-            }
-        });
-    }
-
     public void updateCosmetics(final UUID uuid, final boolean ignoreRestrictions) {
         this.get(uuid).ifPresent(user -> this.updateCosmetics(user, ignoreRestrictions));
 
@@ -185,16 +138,13 @@ public class UserManager {
                 new Pair<>(EnumWrappers.ItemSlot.OFFHAND, this.getCosmeticItem(player, playerArmor.getOffHand(), EquipmentSlot.OFF_HAND, ignoreRestrictions))
         );
 
-        final PacketContainer fake = new PacketContainer(PacketType.Play.Server.ENTITY_EQUIPMENT);
-
-        fake.getIntegers().write(0, player.getEntityId());
-        fake.getSlotStackPairLists().write(0, equipmentList);
-
-        try {
-            this.plugin.getProtocolManager().sendServerPacket(other, fake);
-        } catch (InvocationTargetException e) {
-            e.printStackTrace();
-        }
+        PacketManager.sendPacket(
+                other,
+                PacketManager.getEquipmentPacket(
+                        equipmentList,
+                        player.getEntityId()
+                )
+        );
     }
 
     private ItemStack getCosmeticItem(
@@ -202,6 +152,7 @@ public class UserManager {
             final ArmorItem armorItem,
             final EquipmentSlot slot,
             final boolean ignoreRestrictions) {
+        final CosmeticSettings cosmeticSettings = this.settings.getCosmeticSettings();
         final EntityEquipment equipment = player.getEquipment();
 
         final Map<String, String> placeholders = Map.of(Placeholder.ALLOWED, "true",
@@ -212,8 +163,11 @@ public class UserManager {
                 lorePlaceholders(placeholders).
                 build();
 
-        if (itemStack.getType() != Material.AIR &&
-                (slot != EquipmentSlot.OFF_HAND || ignoreRestrictions)) return itemStack;
+        final boolean isAir = itemStack.getType().isAir();
+        final boolean requireEmpty = cosmeticSettings.requireEmpty(slot);
+
+        if (!isAir && (!requireEmpty || ignoreRestrictions)) return itemStack;
+
 
         if (equipment == null) return itemStack;
 

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

@@ -19,27 +19,6 @@ public class StringUtils {
         plugin = HMCCosmetics.getPlugin(HMCCosmetics.class);
     }
 
-    /**
-     * @param message      message being translated
-     * @param placeholders placeholders applied
-     * @return message with placeholders applied
-     */
-
-    public static String applyPlaceholders(String message, final Map<String, String> placeholders) {
-        for (final Map.Entry<String, String> entry : placeholders.entrySet()) {
-            message = message.replace(entry.getKey(), entry.getValue());
-        }
-        return message;
-    }
-
-    public static String applyPapiPlaceholders(@Nullable final Player player, final String message) {
-        if (HookManager.getInstance().isEnabled(PAPIHook.class)) {
-            return HookManager.getInstance().getPapiHook().parse(player, message);
-        }
-
-        return message;
-    }
-
     /**
      * @param parsed message to be parsed
      * @return MiniMessage parsed string

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

@@ -1,6 +1,7 @@
 package io.github.fisher2911.hmccosmetics.util.builder;
 
 import io.github.fisher2911.hmccosmetics.message.Adventure;
+import io.github.fisher2911.hmccosmetics.message.Placeholder;
 import io.github.fisher2911.hmccosmetics.util.StringUtils;
 import net.kyori.adventure.text.Component;
 import net.minecraft.network.PacketListener;
@@ -101,7 +102,7 @@ public class ItemBuilder {
             return this;
         }
 
-        final String name = StringUtils.
+        final String name = Placeholder.
                 applyPlaceholders(this.itemMeta.getDisplayName(), placeholders);
         this.itemMeta.setDisplayName(name);
         return this;
@@ -140,7 +141,7 @@ public class ItemBuilder {
         }
 
         for (final String line : previousLore) {
-            lore.add(StringUtils.applyPlaceholders(
+            lore.add(Placeholder.applyPlaceholders(
                     line, placeholders
             ));
         }
@@ -164,7 +165,7 @@ public class ItemBuilder {
         if (lore == null) return;
 
         for (final String line : this.itemMeta.getLore()) {
-            newLore.add(StringUtils.applyPapiPlaceholders(player, line));
+            newLore.add(Placeholder.applyPapiPlaceholders(player, line));
         }
 
         this.itemMeta.setLore(newLore);
@@ -174,7 +175,7 @@ public class ItemBuilder {
         if (this.itemMeta == null) return;
 
         this.itemMeta.setDisplayName(
-                StringUtils.applyPapiPlaceholders(
+                Placeholder.applyPapiPlaceholders(
                         player,
                         this.itemMeta.getDisplayName()
                 )