fix: moving the placeholder TickSystem more clearly out

Author: jeffreyrainy

com.unity.multiplayer.mlapi/Runtime/Core/NetworkedBehaviour.cs

@@ -22,17 +22,26 @@
 
 namespace MLAPI
 {
-    /// <summary>
-    /// The base class to override to write networked code. Inherits MonoBehaviour
-    /// </summary>
-    public abstract class NetworkedBehaviour : MonoBehaviour
+    // todo: This is temporary, to be replaced by the tick system
+    static class TickSystem
     {
         // todo: this might belong in the tick system, in the end
         // special value to indicate "No tick information"
-        private const ushort k_NoTick = 65535;
+        public const ushort k_NoTick = 65535;
         // Number of ticks over which the tick number wraps back to 0
-        private const ushort k_TickPeriod = 65000;
+        public const ushort k_TickPeriod = 65000;
+
+        public static ushort GetTick()
+        {
+            return (ushort)(((long)(Time.time / 0.050)) % k_TickPeriod);
+        }
+    }
 
+    /// <summary>
+    /// The base class to override to write networked code. Inherits MonoBehaviour
+    /// </summary>
+    public abstract class NetworkedBehaviour : MonoBehaviour
+    {
         [Browsable(false)]
         [EditorBrowsable(EditorBrowsableState.Never)]
 #if UNITY_2020_2_OR_NEWER
@@ -533,7 +542,7 @@ internal void InitializeVars()
         internal static void NetworkedBehaviourUpdate()
         {
             // Don't NetworkedBehaviourUpdate more than once per network tick
-            ushort tick = GetTick();
+            ushort tick = TickSystem.GetTick();
             if (tick == currentTick)
             {
                 return;
@@ -631,12 +640,6 @@ internal void VarUpdate(ulong clientId)
         private readonly List<int> networkedVarIndexesToReset = new List<int>();
         private readonly HashSet<int> networkedVarIndexesToResetSet = new HashSet<int>();
 
-        // todo: This is temporary, to be replaced by the tick system
-        private static ushort GetTick()
-        {
-            return (ushort)(((long)(Time.time / 0.050)) % k_TickPeriod);
-        }
-
         private void NetworkedVarUpdate(ulong clientId)
         {
             if (!CouldHaveDirtyNetworkedVars())
@@ -870,7 +873,7 @@ internal static void HandleNetworkedVarUpdate(List<INetworkedVar> networkedVarLi
 
                     long readStartPos = stream.Position;
 
-                    networkedVarList[i].ReadField(stream, k_NoTick, k_NoTick);
+                    networkedVarList[i].ReadField(stream, TickSystem.k_NoTick, TickSystem.k_NoTick);
                     ProfilerStatManager.networkVarsRcvd.Record();
 
                     if (NetworkingManager.Singleton.NetworkConfig.EnsureNetworkedVarLengthSafety)