Add some Sneaking Methods

src/de/steamwar/spectatesystem/elements/REntity.java

@@ -19,13 +19,21 @@
 
 package de.steamwar.spectatesystem.elements;
 
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.wrappers.WrappedDataWatcher;
+import com.mojang.authlib.GameProfile;
 import de.steamwar.spectatesystem.SpectateSystem;
 import net.minecraft.server.v1_15_R1.*;
 import org.bukkit.Bukkit;
 import org.bukkit.craftbukkit.v1_15_R1.CraftWorld;
 import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
+import org.bukkit.craftbukkit.v1_15_R1.metadata.EntityMetadataStore;
 import org.bukkit.entity.Player;
 
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -48,6 +56,7 @@ public abstract class REntity {
         for(Player player : Bukkit.getOnlinePlayers()){
             sendToPlayer(player);
         }
+        sneak(false);
     }
 
     public static void playerJoins(Player player){
@@ -103,17 +112,33 @@ public abstract class REntity {
         }
     }
 
-    public void sneak(boolean sneaking) {
-        entity.setSneaking(sneaking);
+    private static Method setPoseMethod = null;
 
-        /*DataWatcher dataWatcher = new DataWatcher(entity);
-        System.out.println("Let " + entity.getName() + " sneak " + sneaking);
-        dataWatcher.register(new DataWatcherObject<>(0, DataWatcherRegistry.a), sneaking ? (byte)0x02 : (byte)0x40);
-        PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entity.getId(), dataWatcher, false);
+    public void sneak(boolean sneaking) {
+        try {
+            if(setPoseMethod == null) {
+                setPoseMethod = Entity.class.getDeclaredMethod("setPose", EntityPose.class);
+                setPoseMethod.setAccessible(true);
+            }
+            setPoseMethod.invoke(entity, sneaking?EntityPose.CROUCHING:EntityPose.STANDING);
+        } catch (NoSuchMethodException e) {
+            e.printStackTrace();
+        } catch (InvocationTargetException e) {
+            e.printStackTrace();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+        /*System.out.println("Let " + entity.getName() + " sneak " + sneaking+ " | " + entity.getClass());
+        DataWatcher dataWatcher = entity.getDataWatcher();
+
+        dataWatcher.set(new DataWatcherObject<>(6, DataWatcherRegistry.s), sneaking?EntityPose.CROUCHING:EntityPose.STANDING);
+        //dataWatcher.set(new DataWatcherObject<>(0, DataWatcherRegistry.a), Byte.valueOf((byte) (sneaking?2:0)));*/
+
+        PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(entity.getId(), entity.getDataWatcher(), false);
 
         for(Player player : Bukkit.getOnlinePlayers()){
-            ((CraftPlayer)player).getHandle().playerConnection.sendPacket(packet);
-        }*/
+            ((CraftPlayer) player).getHandle().playerConnection.sendPacket(packet);
+        }
     }
 
     public void animation(byte animation) {