first commit

NitroxClient/GameLogic/Spawning/Metadata/Processor/StayAtLeashPositionMetadataProcessor.cs

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+using NitroxClient.GameLogic.Spawning.Metadata.Processor.Abstract;
+using NitroxModel.DataStructures.GameLogic.Entities.Metadata;
+using NitroxModel_Subnautica.DataStructures;
+using UnityEngine;
+
+namespace NitroxClient.GameLogic.Spawning.Metadata.Processor;
+
+public class StayAtLeashPositionMetadataProcessor : EntityMetadataProcessor<StayAtLeashPositionMetadata>
+{
+    public override void ProcessMetadata(GameObject gameObject, StayAtLeashPositionMetadata metadata)
+    {
+        if (!gameObject.TryGetComponent(out Creature creature))
+        {
+            Log.Error($"Could not find {nameof(Creature)} on {gameObject.name}");
+            return;
+        }
+
+        if (!creature.isInitialized)
+        {
+            // TODO: When #2137 is merged, only a MetadataHolder to the creature and postfix patch creature.Start to consume it
+            creature.InitializeOnce();
+            creature.isInitialized = true;
+        }
+        creature.leashPosition = metadata.LeashPosition.ToUnity();
+    }
+}