[ExcludeComponent(typeof(NetworkIDComponent))]
    struct AssignNetworkIDJob : IJobForEachWithEntity_EBC<OutgoingRpcDataStreamBufferElement, NetworkStreamConnection>
    {
        public EntityCommandBuffer ECBuffer;
        public NativeArray<int> NumberOfNetworkIDs;
        public NativeQueue<int> FreeNetworkIDs;
        public RpcQueue<RpcSetNetworkID> RpcQueue;

        public void Execute(Entity entity, int index, DynamicBuffer<OutgoingRpcDataStreamBufferElement> buffer, [ReadOnly] ref NetworkStreamConnection connection)
        {
            if (!connection.value.IsCreated)
            {
                return;
            }

            // send the Rpc to assign network ID
            int NetworkID;
            if(!FreeNetworkIDs.TryDequeue(out NetworkID))
            {
                // Avoid using 0
                NetworkID = NumberOfNetworkIDs[0] + 1;
                NumberOfNetworkIDs[0] = NetworkID;
            }

            ECBuffer.AddComponent(entity, new NetworkIDComponent { value = NetworkID });
            RpcQueue.Schedule(buffer, new RpcSetNetworkID { networkID = NetworkID });
        }
    }