Re-add silencing mobs feature under PU's roof

Author: Diamondback88

modules/src/main/java/parallelmc/parallelutils/modules/bitsandbobs/BitsAndBobs.java

@@ -61,6 +61,7 @@ public void onEnable() {
         manager.registerEvents(new ShardLotto(), plugin);
         manager.registerEvents(new ChickenFeatherDrops(), plugin);
         manager.registerEvents(new EntityTweaks(), plugin);
+        manager.registerEvents(new SilenceMobs(), plugin);
 
         if (config.getBoolean("speedy-minecarts", false)) {
             manager.registerEvents(new SpeedyMinecarts(), plugin);

modules/src/main/java/parallelmc/parallelutils/modules/bitsandbobs/minimodules/SilenceMobs.java

@@ -0,0 +1,65 @@
+package parallelmc.parallelutils.modules.bitsandbobs.minimodules;
+
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.TextComponent;
+import org.bukkit.Bukkit;
+import org.bukkit.GameMode;
+import org.bukkit.Material;
+import org.bukkit.NamespacedKey;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerInteractEntityEvent;
+import org.bukkit.inventory.EquipmentSlot;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.PluginManager;
+import parallelmc.parallelutils.Constants;
+import parallelmc.parallelutils.ParallelUtils;
+
+import java.util.Objects;
+import java.util.logging.Level;
+
+public class SilenceMobs implements Listener {
+
+    NamespacedKey silencedKey;
+
+    public SilenceMobs() {
+        PluginManager manager = Bukkit.getPluginManager();
+        Plugin plugin = manager.getPlugin(Constants.PLUGIN_NAME);
+        if (plugin == null) {
+            ParallelUtils.log(Level.SEVERE, "Unable to enable SilenceMobs. Plugin " + Constants.PLUGIN_NAME
+                    + " does not exist!");
+            return;
+        }
+
+        silencedKey = new NamespacedKey(plugin, "silencedByNametag");
+    }
+
+    @EventHandler
+    public void useSilenceNametag(PlayerInteractEntityEvent event) {
+        EquipmentSlot slot = event.getHand();
+        Player player = event.getPlayer();
+        if (!player.getEquipment().getItem(slot).getType().equals(Material.NAME_TAG)) {
+            return;
+        }
+        if (!(event.getRightClicked() instanceof LivingEntity entity)) {
+            return;
+        }
+        TextComponent nametagName = (TextComponent) player.getEquipment().getItem(slot).getItemMeta().displayName();
+        // If name tag is "silence me", silence the mob. If the name tag contents are different and the entity was
+        // previously silenced by a "silence me" name tag, un-silence the mob
+        if (nametagName != null && nametagName.content().equalsIgnoreCase("silence me")) {
+            entity.setSilent(true);
+            entity.customName(Component.text("Silenced"));
+            if (!player.getGameMode().equals(GameMode.CREATIVE)) {
+                player.getEquipment().getItem(slot).subtract();
+            }
+            event.setCancelled(true);
+        } else {
+            if (Objects.equals(entity.customName(), Component.text("Silenced"))) {
+                entity.setSilent(false);
+            }
+        }
+    }
+}