Using BytePacker utilities to optimize the size of the serialized intantiation data length

Author: Extrys

com.unity.netcode.gameobjects/Runtime/Core/NetworkObject.cs

@@ -2940,7 +2940,7 @@ public void Serialize(FastBufferWriter writer)
 
                 if (HasInstantiationData)
                 {
-                    writer.WriteValueSafe(OwnerObject.InstantiationData.Length);
+                    BytePacker.WriteValuePacked(writer, OwnerObject.InstantiationData.Length);
                     writer.WriteBytesSafe(OwnerObject.InstantiationData);
                 }
 

com.unity.netcode.gameobjects/Runtime/Spawning/NetworkPrefabHandler.cs

@@ -291,7 +291,7 @@ internal FastBufferReader GetInstantiationDataReader(uint objectHash, FastBuffer
                 return default;
             }
 
-            fastBufferReader.ReadValueSafe(out int dataSize);
+            ByteUnpacker.ReadValuePacked(fastBufferReader, out int dataSize);
             var position = fastBufferReader.Position;
             var dataReader = new FastBufferReader(fastBufferReader, Collections.Allocator.Temp, dataSize, position);
             fastBufferReader.Seek(position + dataSize);