Merge 83fd6cbc20 into 451c297a43

Hopefully adds additional support in preventing confusion.

.github/workflows/RunUnityTests.yml

@@ -16,7 +16,7 @@ jobs:
           - 2021.3.45f1
           - 2022.3.51f1
           - 2023.2.20f1
-          - 6000.0.24f1
+          - 6000.0.25f1
 
     steps:
       - name: Checkout repository

Assets/Mirror/Components/NetworkTransform/NetworkTransformHybrid.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 8f63ea2e505fd484193fb31c5c55ca73
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {fileID: 2800000, guid: 7453abfe9e8b2c04a8a47eb536fe21eb, type: 3}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Mirror/Core/Attributes.cs

@@ -48,28 +48,28 @@ public class TargetRpcAttribute : Attribute
     }
 
     /// <summary>
-    /// Prevents clients from running this method.
-    /// <para>Prints a warning if a client tries to execute this method.</para>
+    /// Only an active server will run this method.
+    /// <para>Prints a warning if a client or in-active server tries to execute this method.</para>
     /// </summary>
     [AttributeUsage(AttributeTargets.Method)]
     public class ServerAttribute : Attribute {}
 
     /// <summary>
-    /// Prevents clients from running this method.
+    /// Only an active server will run this method.
     /// <para>No warning is thrown.</para>
     /// </summary>
     [AttributeUsage(AttributeTargets.Method)]
     public class ServerCallbackAttribute : Attribute {}
 
     /// <summary>
-    /// Prevents the server from running this method.
-    /// <para>Prints a warning if the server tries to execute this method.</para>
+    /// Only an active client will run this method.
+    /// <para>Prints a warning if the server or in-active client tries to execute this method.</para>
     /// </summary>
     [AttributeUsage(AttributeTargets.Method)]
     public class ClientAttribute : Attribute {}
 
     /// <summary>
-    /// Prevents the server from running this method.
+    /// Only an active client will run this method.
     /// <para>No warning is printed.</para>
     /// </summary>
     [AttributeUsage(AttributeTargets.Method)]

Assets/Mirror/Core/NetworkIdentity.cs

@@ -269,17 +269,52 @@ internal static void ResetClientStatics()
 
         internal static void ResetServerStatics()
         {
+            reuseNetworkIds = true;
+            reuseDelay = 1;
+
+            netIdQueue.Clear();
             nextNetworkId = 1;
         }
 
         /// <summary>Gets the NetworkIdentity from the sceneIds dictionary with the corresponding id</summary>
         public static NetworkIdentity GetSceneIdentity(ulong id) => sceneIds[id];
 
+        #region Network ID Reuse
+
+        internal static bool reuseNetworkIds = true;
+        internal static byte reuseDelay = 1;
+
+        internal struct ReusableNetworkId
+        {
+            public uint reusableNetId;
+            public double timeAvailable;
+        }
+
+        // pool of NetworkIds that can be reused
+        internal static readonly Queue<ReusableNetworkId> netIdQueue = new Queue<ReusableNetworkId>();
         static uint nextNetworkId = 1;
-        internal static uint GetNextNetworkId() => nextNetworkId++;
+
+        internal static uint GetNextNetworkId()
+        {
+            // Older Unity versions don't have TryPeek.
+            if (reuseNetworkIds && netIdQueue.Count > 0 && netIdQueue.Peek().timeAvailable < NetworkTime.time)
+            {
+                ReusableNetworkId nextNetId = netIdQueue.Dequeue();
+                //Debug.LogFormat(LogType.Log, LogOption.NoStacktrace, null, $"[GetNextNetworkId] Reusing NetworkId {nextNetId.reusableNetId}.");
+                return nextNetId.reusableNetId;
+            }
+
+            return nextNetworkId++;
+        }
 
         /// <summary>Resets nextNetworkId = 1</summary>
-        public static void ResetNextNetworkId() => nextNetworkId = 1;
+        public static void ResetNextNetworkId()
+        {
+            netIdQueue.Clear();
+            nextNetworkId = 1;
+        }
+
+        #endregion
 
         /// <summary>The delegate type for the clientAuthorityCallback.</summary>
         public delegate void ClientAuthorityCallback(NetworkConnectionToClient conn, NetworkIdentity identity, bool authorityState);
@@ -633,6 +668,9 @@ void OnDestroy()
                 NetworkServer.Destroy(gameObject);
             }
 
+            if (isServer && reuseNetworkIds && netId > 0)
+                netIdQueue.Enqueue(new ReusableNetworkId { reusableNetId = netId, timeAvailable = NetworkTime.time + reuseDelay });
+
             if (isLocalPlayer)
             {
                 // previously there was a bug where isLocalPlayer was
@@ -671,8 +709,25 @@ void OnDestroy()
 
                 // if an identity is still in .spawned, remove it too.
                 // fixes: https://github.com/MirrorNetworking/Mirror/issues/3324
+                //
+                // however, verify that spawned[netId] is this NetworkIdentity
+                // fixes: https://github.com/MirrorNetworking/Mirror/issues/3785
+                // - server: netId=42 walks out of and back into AOI range in same frame
+                // - client frame 1:
+                //     on_destroymsg(42) -> NetworkClient.DestroyObject -> GameObject.Destroy(42) // next frame
+                //     on_spawnmsg(42) -> NetworkClient.SpawnPrefab -> Instantiate(42) -> spawned[42]=new_identity
+                // - client frame 2:
+                //     Unity destroys the old 42
+                //     NetworkIdentity.OnDestroy removes .spawned[42] which is new_identity not old_identity
+                //     new_identity becomes orphaned
+                //
+                // solution: only remove if spawned[netId] is this NetworkIdentity or null
+                if (NetworkClient.spawned.TryGetValue(netId, out NetworkIdentity entry))
+                {
+                    if (entry == this || entry == null)
                         NetworkClient.spawned.Remove(netId);
                 }
+            }
 
             // workaround for cyclid NI<->NB reference causing memory leaks
             // after Destroy. [Credits: BigBoxVR/R.S.]
@@ -846,7 +901,7 @@ internal void OnStopLocalPlayer()
             for (int i = 0; i < components.Length; ++i)
             {
                 NetworkBehaviour component = components[i];
-                ulong nthBit = (1u << i);
+                ulong nthBit = 1ul << i;
 
                 bool dirty = component.IsDirty();
 
@@ -893,7 +948,7 @@ ulong ClientDirtyMask()
 
                 // on client, only consider owned components with SyncDirection to server
                 NetworkBehaviour component = components[i];
-                ulong nthBit = (1u << i);
+                ulong nthBit = 1ul << i;
 
                 if (isOwned && component.syncDirection == SyncDirection.ClientToServer)
                 {
@@ -911,7 +966,7 @@ ulong ClientDirtyMask()
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
         internal static bool IsDirty(ulong mask, int index)
         {
-            ulong nthBit = (ulong)(1 << index);
+            ulong nthBit = 1ul << index;
             return (mask & nthBit) != 0;
         }
 
@@ -1310,7 +1365,14 @@ internal void ResetState()
             isOwned = false;
             NotifyAuthority();
 
+            if (netId > 0)
+            {
+                if (reuseNetworkIds)
+                    netIdQueue.Enqueue(new ReusableNetworkId { reusableNetId = netId, timeAvailable = NetworkTime.time + reuseDelay });
+
                 netId = 0;
+            }
+
             connectionToServer = null;
             connectionToClient = null;
 

Assets/Mirror/Core/NetworkManager.cs

@@ -47,6 +47,13 @@ public class NetworkManager : MonoBehaviour
         // [Tooltip("Client broadcasts 'sendRate' times per second. Use around 60Hz for fast paced games like Counter-Strike to minimize latency. Use around 30Hz for games like WoW to minimize computations. Use around 1-10Hz for slow paced games like EVE.")]
         // public int clientSendRate = 30; // 33 ms
 
+        [Header("Network ID Reuse")]
+        [Tooltip("Reuse network IDs when objects are unspawned or destroyed?")]
+        public bool reuseNetworkIds = true;
+        [Range(1, 60)]
+        [Tooltip("Delay in seconds before network IDs are reused")]
+        public byte reuseDelay = 1;
+
         /// <summary>Automatically switch to this scene upon going offline (on start / on disconnect / on shutdown).</summary>
         [Header("Scene Management")]
         [Scene]
@@ -290,6 +297,10 @@ void SetupServer()
             NetworkServer.disconnectInactiveTimeout = disconnectInactiveTimeout;
             NetworkServer.exceptionsDisconnect = exceptionsDisconnect;
 
+            // Setup reuseable network IDs
+            NetworkIdentity.reuseNetworkIds = reuseNetworkIds;
+            NetworkIdentity.reuseDelay = reuseDelay;
+
             if (runInBackground)
                 Application.runInBackground = true;
 
@@ -634,31 +645,6 @@ public void StopClient()
             NetworkClient.Disconnect();
         }
 
-        // called when quitting the application by closing the window / pressing
-        // stop in the editor. virtual so that inheriting classes'
-        // OnApplicationQuit() can call base.OnApplicationQuit() too
-        public virtual void OnApplicationQuit()
-        {
-            // stop client first
-            // (we want to send the quit packet to the server instead of waiting
-            //  for a timeout)
-            if (NetworkClient.isConnected)
-            {
-                StopClient();
-                //Debug.Log("OnApplicationQuit: stopped client");
-            }
-
-            // stop server after stopping client (for proper host mode stopping)
-            if (NetworkServer.active)
-            {
-                StopServer();
-                //Debug.Log("OnApplicationQuit: stopped server");
-            }
-
-            // Call ResetStatics to reset statics and singleton
-            ResetStatics();
-        }
-
         /// <summary>Set the frame rate for a headless builds. Override to disable or modify.</summary>
         // useful for dedicated servers.
         // useful for headless benchmark clients.
@@ -772,12 +758,41 @@ public static void ResetStatics()
             singleton = null;
         }
 
-        // virtual so that inheriting classes' OnDestroy() can call base.OnDestroy() too
+        // called when quitting the application by closing the window / pressing
+        // stop in the editor.
+        // use OnDestroy instead of OnApplicationQuit:
+        // fixes: https://github.com/MirrorNetworking/Mirror/issues/2802
         public virtual void OnDestroy()
         {
             //Debug.Log("NetworkManager destroyed");
+
+            // stop client first
+            // (we want to send the quit packet to the server instead of waiting
+            //  for a timeout)
+            if (NetworkClient.isConnected)
+            {
+                StopClient();
+                //Debug.Log("OnApplicationQuit: stopped client");
             }
 
+            // stop server after stopping client (for proper host mode stopping)
+            if (NetworkServer.active)
+            {
+                StopServer();
+                //Debug.Log("OnApplicationQuit: stopped server");
+            }
+
+            // Call ResetStatics to reset statics and singleton
+            ResetStatics();
+        }
+
+        // [Obsolete] in case someone is inheriting it.
+        // don't use this anymore.
+        // fixes: https://github.com/MirrorNetworking/Mirror/issues/2802
+        // DEPRECATED 2024-10-29
+        [Obsolete("Override OnDestroy instead of OnApplicationQuit.")]
+        public virtual void OnApplicationQuit() {}
+
         /// <summary>The name of the current network scene.</summary>
         // set by NetworkManager when changing the scene.
         // new clients will automatically load this scene.

Assets/Mirror/Core/NetworkReaderExtensions.cs

@@ -313,8 +313,6 @@ public static List<T> ReadList<T>(this NetworkReader reader)
         // structs may have .Set<T> members which weaver needs to be able to
         // fully serialize for NetworkMessages etc.
         // note that Weaver/Readers/GenerateReader() handles this manually.
-        // TODO writer not found. need to adjust weaver first. see tests.
-        /*
         public static HashSet<T> ReadHashSet<T>(this NetworkReader reader)
         {
             // we offset count by '1' to easily support null without writing another byte.
@@ -334,7 +332,6 @@ public static HashSet<T> ReadHashSet<T>(this NetworkReader reader)
             }
             return result;
         }
-        */
 
         public static T[] ReadArray<T>(this NetworkReader reader)
         {

Assets/Mirror/Core/NetworkWriterExtensions.cs

@@ -365,28 +365,25 @@ public static void WriteList<T>(this NetworkWriter writer, List<T> list)
         // structs may have .Set<T> members which weaver needs to be able to
         // fully serialize for NetworkMessages etc.
         // note that Weaver/Writers/GenerateWriter() handles this manually.
-        // TODO writer not found. need to adjust weaver first. see tests.
-        // /*
-        // public static void WriteHashSet<T>(this NetworkWriter writer, HashSet<T> hashSet)
-        // {
-        //     // we offset count by '1' to easily support null without writing another byte.
-        //     // encoding null as '0' instead of '-1' also allows for better compression
-        //     // (ushort vs. short / varuint vs. varint) etc.
-        //     if (hashSet is null)
-        //     {
-        //         // most sizes are small, write size as VarUInt!
-        //         Compression.CompressVarUInt(writer, 0u);
-        //         //writer.WriteUInt(0);
-        //         return;
-        //     }
-        //
-        //     // most sizes are small, write size as VarUInt!
-        //     Compression.CompressVarUInt(writer, checked((uint)hashSet.Count) + 1u);
-        //     //writer.WriteUInt(checked((uint)hashSet.Count) + 1u);
-        //     foreach (T item in hashSet)
-        //         writer.Write(item);
-        // }
-        // */
+        public static void WriteHashSet<T>(this NetworkWriter writer, HashSet<T> hashSet)
+        {
+            // we offset count by '1' to easily support null without writing another byte.
+            // encoding null as '0' instead of '-1' also allows for better compression
+            // (ushort vs. short / varuint vs. varint) etc.
+            if (hashSet is null)
+            {
+                // most sizes are small, write size as VarUInt!
+                Compression.CompressVarUInt(writer, 0u);
+                //writer.WriteUInt(0);
+                return;
+            }
+
+            // most sizes are small, write size as VarUInt!
+            Compression.CompressVarUInt(writer, checked((uint)hashSet.Count) + 1u);
+            //writer.WriteUInt(checked((uint)hashSet.Count) + 1u);
+            foreach (T item in hashSet)
+                writer.Write(item);
+        }
 
         public static void WriteArray<T>(this NetworkWriter writer, T[] array)
         {

Assets/Mirror/Core/Tools/Extensions.cs

@@ -114,6 +114,18 @@ public static void SetPositionAndRotation(this Transform transform, Vector3 posi
             transform.position = position;
             transform.rotation = rotation;
         }
+
+        public static void GetLocalPositionAndRotation(this Transform transform, out Vector3 position, out Quaternion rotation)
+        {
+            position = transform.localPosition;
+            rotation = transform.localRotation;
+        }
+
+        public static void SetLocalPositionAndRotation(this Transform transform, Vector3 position, Quaternion rotation)
+        {
+            transform.localPosition = position;
+            transform.localRotation = rotation;
+        }
 #endif
 
         // IPEndPoint address only to pretty string.

Assets/Mirror/Core/Transport.cs

@@ -196,8 +196,15 @@ public virtual void ServerLateUpdate() {}
         /// <summary>Shut down the transport, both as client and server</summary>
         public abstract void Shutdown();
 
-        /// <summary>Called by Unity when quitting. Inheriting Transports should call base for proper Shutdown.</summary>
-        public virtual void OnApplicationQuit()
+        // [Obsolete] in case someone is inheriting it.
+        // don't use this anymore.
+        // fixes: https://github.com/MirrorNetworking/Mirror/issues/2802
+        // DEPRECATED 2024-10-29
+        [Obsolete("Override OnDestroy instead of OnApplicationQuit.")]
+        public virtual void OnApplicationQuit() {}
+
+        // fixes: https://github.com/MirrorNetworking/Mirror/issues/2802
+        public virtual void OnDestroy()
         {
             // stop transport (e.g. to shut down threads)
             // (when pressing Stop in the Editor, Unity keeps threads alive

Assets/Mirror/Editor/NetworkInformationPreview.cs

@@ -113,6 +113,8 @@ public override void OnPreviewGUI(Rect r, GUIStyle background)
 
             Y = DrawObservers(identity, initialX, Y);
 
+            Y = DrawNetworkIDQueue(initialX, Y);
+
             _ = DrawOwner(identity, initialX, Y);
 
         }
@@ -193,6 +195,25 @@ float DrawObservers(NetworkIdentity identity, float initialX, float Y)
             return Y;
         }
 
+        float DrawNetworkIDQueue(float initialX, float Y)
+        {
+            if (NetworkIdentity.netIdQueue.Count > 0)
+            {
+                Rect netIdRect = new Rect(initialX, Y + 10, 200, 20);
+                GUI.Label(netIdRect, new GUIContent("Network ID Queue"), styles.labelStyle);
+                netIdRect.x += 20;
+                netIdRect.y += netIdRect.height;
+                foreach (var entry in NetworkIdentity.netIdQueue)
+                {
+                    GUI.Label(netIdRect, $"[{entry.reusableNetId}] {entry.timeAvailable:0.000}", styles.componentName);
+                    netIdRect.y += netIdRect.height;
+                    Y = netIdRect.y;
+                }
+            }
+
+            return Y;
+        }
+
         float DrawOwner(NetworkIdentity identity, float initialX, float Y)
         {
             if (identity.connectionToClient != null)

Assets/Mirror/Editor/Weaver/Readers.cs

@@ -125,6 +125,13 @@ MethodReference GenerateReader(TypeReference variableReference, ref bool Weaving
 
                 return GenerateReadCollection(variableReference, elementType, nameof(NetworkReaderExtensions.ReadList), ref WeavingFailed);
             }
+            else if (variableDefinition.Is(typeof(HashSet<>)))
+            {
+                GenericInstanceType genericInstance = (GenericInstanceType)variableReference;
+                TypeReference elementType = genericInstance.GenericArguments[0];
+
+                return GenerateReadCollection(variableReference, elementType, nameof(NetworkReaderExtensions.ReadHashSet), ref WeavingFailed);
+            }
             // handle both NetworkBehaviour and inheritors.
             // fixes: https://github.com/MirrorNetworking/Mirror/issues/2939
             else if (variableReference.IsDerivedFrom<NetworkBehaviour>() || variableReference.Is<NetworkBehaviour>())

Assets/Mirror/Editor/Weaver/Writers.cs

@@ -126,6 +126,13 @@ MethodReference GenerateWriter(TypeReference variableReference, ref bool Weaving
 
                 return GenerateCollectionWriter(variableReference, elementType, nameof(NetworkWriterExtensions.WriteList), ref WeavingFailed);
             }
+            if (variableReference.Is(typeof(HashSet<>)))
+            {
+                GenericInstanceType genericInstance = (GenericInstanceType)variableReference;
+                TypeReference elementType = genericInstance.GenericArguments[0];
+
+                return GenerateCollectionWriter(variableReference, elementType, nameof(NetworkWriterExtensions.WriteHashSet), ref WeavingFailed);
+            }
 
             // handle both NetworkBehaviour and inheritors.
             // fixes: https://github.com/MirrorNetworking/Mirror/issues/2939

Assets/Mirror/Examples/AutoLANClientController/Scripts/AutoLANNetworkManager.cs

@@ -62,15 +62,6 @@ public override void LateUpdate()
             base.LateUpdate();
         }
 
-        /// <summary>
-        /// Runs on both Server and Client
-        /// </summary>
-        public override void OnDestroy()
-        {
-            base.OnDestroy();
-            //UnityEngine.Debug.Log("OnDestroy");
-        }
-
 #endregion
 
         #region Start & Stop
@@ -87,10 +78,10 @@ public override void ConfigureHeadlessFrameRate()
         /// <summary>
         /// called when quitting the application by closing the window / pressing stop in the editor
         /// </summary>
-        public override void OnApplicationQuit()
+        public override void OnDestroy()
         {
-            base.OnApplicationQuit();
-            //UnityEngine.Debug.Log("OnApplicationQuit");
+            base.OnDestroy();
+            //UnityEngine.Debug.Log("OnDestroy");
         }
 
         #endregion

Assets/Mirror/Examples/PlayerTest/PlayerRBReliable.prefab

@@ -1,5 +1,111 @@
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+  m_PrefabAsset: {fileID: 0}
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+  - component: {fileID: 9066655185906928051}
+  - component: {fileID: 4760233786622638652}
+  - component: {fileID: 2239866139065920034}
+  m_Layer: 0
+  m_Name: PlayerName
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!4 &8070823805368028938
+Transform:
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+  m_LocalPosition: {x: 0, y: 1.4999999, z: 0}
+  m_LocalScale: {x: 0.1, y: 0.1, z: 0.1}
+  m_Children: []
+  m_Father: {fileID: 5650773562400175449}
+  m_RootOrder: 1
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!23 &9066655185906928051
+MeshRenderer:
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+  m_PrefabAsset: {fileID: 0}
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+  m_Enabled: 1
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+  m_ReceiveShadows: 1
+  m_DynamicOccludee: 1
+  m_MotionVectors: 1
+  m_LightProbeUsage: 1
+  m_ReflectionProbeUsage: 1
+  m_RayTracingMode: 2
+  m_RenderingLayerMask: 1
+  m_RendererPriority: 0
+  m_Materials:
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+  m_StaticBatchInfo:
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+  m_StaticBatchRoot: {fileID: 0}
+  m_ProbeAnchor: {fileID: 0}
+  m_LightProbeVolumeOverride: {fileID: 0}
+  m_ScaleInLightmap: 1
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+  m_SortingLayer: 0
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+TextMesh:
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 2505838817581327622}
+  m_Text: RB Reliable
+  m_OffsetZ: 0
+  m_CharacterSize: 0.5
+  m_LineSpacing: 1
+  m_Anchor: 4
+  m_Alignment: 1
+  m_TabSize: 4
+  m_FontSize: 100
+  m_FontStyle: 0
+  m_RichText: 1
+  m_Font: {fileID: 10102, guid: 0000000000000000e000000000000000, type: 0}
+  m_Color:
+    serializedVersion: 2
+    rgba: 4294967040
+--- !u!114 &2239866139065920034
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
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+  m_Script: {fileID: 11500000, guid: afa2d590c474413d9fc183551385ed85, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
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@@ -194,6 +300,7 @@ Transform:
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   m_Children:
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+  - {fileID: 8070823805368028938}
   m_Father: {fileID: 0}
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Assets/Mirror/Examples/PlayerTest/PlayerRBUnreliable.prefab

@@ -1,5 +1,111 @@
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+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1900176203039934355}
+  m_Text: RB Unreliable
+  m_OffsetZ: 0
+  m_CharacterSize: 0.5
+  m_LineSpacing: 1
+  m_Anchor: 4
+  m_Alignment: 1
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+  m_Color:
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+  m_Name: 
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@@ -194,6 +300,7 @@ Transform:
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+  - {fileID: 4129545300081926521}
   m_Father: {fileID: 0}
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Assets/Mirror/Examples/PlayerTest/PlayerReliable.prefab

@@ -79,6 +79,112 @@ MeshRenderer:
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+  m_RendererPriority: 0
+  m_Materials:
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 5366675989284536270}
+  m_Text: Reliable
+  m_OffsetZ: 0
+  m_CharacterSize: 0.5
+  m_LineSpacing: 1
+  m_Anchor: 4
+  m_Alignment: 1
+  m_TabSize: 4
+  m_FontSize: 100
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+  m_RichText: 1
+  m_Font: {fileID: 10102, guid: 0000000000000000e000000000000000, type: 0}
+  m_Color:
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+  m_Name: 
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   m_ObjectHideFlags: 0
@@ -195,6 +301,7 @@ Transform:
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   m_Children:
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+  - {fileID: 1545974004720046327}
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Assets/Mirror/Examples/PlayerTest/PlayerTestNetMan.cs

@@ -71,14 +71,6 @@ public override void ConfigureHeadlessFrameRate()
             base.ConfigureHeadlessFrameRate();
         }
 
-        /// <summary>
-        /// called when quitting the application by closing the window / pressing stop in the editor
-        /// </summary>
-        public override void OnApplicationQuit()
-        {
-            base.OnApplicationQuit();
-        }
-
         #endregion
 
         #region Scene Management

Assets/Mirror/Examples/PlayerTest/PlayerUnreliable.prefab

@@ -159,6 +159,112 @@ MeshRenderer:
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   m_SortingOrder: 0
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+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
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+  m_Father: {fileID: 4659514702152478195}
+  m_RootOrder: 1
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
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+  m_ReceiveShadows: 1
+  m_DynamicOccludee: 1
+  m_MotionVectors: 1
+  m_LightProbeUsage: 1
+  m_ReflectionProbeUsage: 1
+  m_RayTracingMode: 2
+  m_RenderingLayerMask: 1
+  m_RendererPriority: 0
+  m_Materials:
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+  m_StaticBatchInfo:
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+    subMeshCount: 0
+  m_StaticBatchRoot: {fileID: 0}
+  m_ProbeAnchor: {fileID: 0}
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+  m_ScaleInLightmap: 1
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+  m_ImportantGI: 0
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+  m_AutoUVMaxAngle: 89
+  m_LightmapParameters: {fileID: 0}
+  m_SortingLayerID: 0
+  m_SortingLayer: 0
+  m_SortingOrder: 0
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 7554601580530514207}
+  m_Text: Unreliable
+  m_OffsetZ: 0
+  m_CharacterSize: 0.5
+  m_LineSpacing: 1
+  m_Anchor: 4
+  m_Alignment: 1
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+  m_FontSize: 100
+  m_FontStyle: 0
+  m_RichText: 1
+  m_Font: {fileID: 10102, guid: 0000000000000000e000000000000000, type: 0}
+  m_Color:
+    serializedVersion: 2
+    rgba: 4278255615
+--- !u!114 &1123801447343694564
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+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
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+  m_Script: {fileID: 11500000, guid: afa2d590c474413d9fc183551385ed85, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
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 GameObject:
   m_ObjectHideFlags: 0
@@ -195,6 +301,7 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children:
   - {fileID: 3834521907656645861}
+  - {fileID: 8679949096303753939}
   m_Father: {fileID: 0}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}

Assets/Mirror/Examples/PlayerTest/TankReliable.prefab

@@ -38,6 +38,7 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children:
   - {fileID: 702109291309605218}
+  - {fileID: 1245118046271587945}
   - {fileID: 8174595063106582951}
   m_Father: {fileID: 0}
   m_RootOrder: 0
@@ -197,7 +198,6 @@ MonoBehaviour:
   maxTurnSpeed: 100
   turnAcceleration: 3
   runtimeData:
-    _horizontal: 0
     _vertical: 0
     _turnSpeed: 0
     _animVelocity: 0
@@ -328,6 +328,112 @@ MonoBehaviour:
   rotationSensitivity: 0.01
   positionPrecision: 0.01
   scalePrecision: 0.01
+--- !u!1 &8370326626297540303
+GameObject:
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+  - component: {fileID: 755026988438523126}
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+  m_Name: PlayerName
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
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+  m_RootOrder: 1
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+  m_ReflectionProbeUsage: 1
+  m_RayTracingMode: 2
+  m_RenderingLayerMask: 1
+  m_RendererPriority: 0
+  m_Materials:
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+  m_ProbeAnchor: {fileID: 0}
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+  m_PrefabInstance: {fileID: 0}
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+  m_GameObject: {fileID: 8370326626297540303}
+  m_Text: Reliable
+  m_OffsetZ: 0
+  m_CharacterSize: 0.5
+  m_LineSpacing: 1
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+  m_Script: {fileID: 11500000, guid: afa2d590c474413d9fc183551385ed85, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
 --- !u!1 &9109672380512621037
 GameObject:
   m_ObjectHideFlags: 0
@@ -359,7 +465,7 @@ Transform:
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   m_Children: []
   m_Father: {fileID: 4659514702152478195}
-  m_RootOrder: 1
+  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!23 &4153780752967283830
 MeshRenderer:
@@ -446,6 +552,11 @@ PrefabInstance:
       propertyPath: m_Name
       value: BasePrefab
       objectReference: {fileID: 0}
+    - target: {fileID: 3638700596990361445, guid: dad07e68d3659e6439279d0d4110cf4c,
+        type: 3}
+      propertyPath: m_RootOrder
+      value: 0
+      objectReference: {fileID: 0}
     - target: {fileID: 3638700596990361445, guid: dad07e68d3659e6439279d0d4110cf4c,
         type: 3}
       propertyPath: m_LocalPosition.x

Assets/Mirror/Examples/PlayerTest/TankUnreliable.prefab

@@ -38,6 +38,7 @@ Transform:
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   m_Children:
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+  - {fileID: 3980373565918037634}
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   m_Father: {fileID: 0}
   m_RootOrder: 0
@@ -197,7 +198,6 @@ MonoBehaviour:
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   turnAcceleration: 3
   runtimeData:
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     _vertical: 0
     _turnSpeed: 0
     _animVelocity: 0
@@ -328,6 +328,112 @@ MonoBehaviour:
   positionSensitivity: 0.01
   rotationSensitivity: 0.01
   scaleSensitivity: 0.01
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+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: afa2d590c474413d9fc183551385ed85, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
 --- !u!1 &9109672380512621037
 GameObject:
   m_ObjectHideFlags: 0
@@ -359,7 +465,7 @@ Transform:
   m_LocalScale: {x: 0.1, y: 0.1, z: 0.1}
   m_Children: []
   m_Father: {fileID: 4659514702152478195}
-  m_RootOrder: 1
+  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!23 &4153780752967283830
 MeshRenderer:
@@ -446,6 +552,11 @@ PrefabInstance:
       propertyPath: m_Name
       value: BasePrefab
       objectReference: {fileID: 0}
+    - target: {fileID: 3638700596990361445, guid: dad07e68d3659e6439279d0d4110cf4c,
+        type: 3}
+      propertyPath: m_RootOrder
+      value: 0
+      objectReference: {fileID: 0}
     - target: {fileID: 3638700596990361445, guid: dad07e68d3659e6439279d0d4110cf4c,
         type: 3}
       propertyPath: m_LocalPosition.x

Assets/Mirror/Examples/_Common/Scripts/PlayerCamera.cs

@@ -19,11 +19,6 @@ void Awake()
             mainCam = Camera.main;
         }
 
-        void OnDisable()
-        {
-            //Debug.Log("PlayerCamera.OnDisable");
-        }
-
         public override void OnStartLocalPlayer()
         {
             if (mainCam != null)
@@ -38,16 +33,46 @@ public override void OnStartLocalPlayer()
                 Debug.LogWarning("PlayerCamera: Could not find a camera in scene with 'MainCamera' tag.");
         }
 
+        void OnApplicationQuit()
+        {
+            //Debug.Log("PlayerCamera.OnApplicationQuit");
+            ReleaseCamera();
+        }
+
         public override void OnStopLocalPlayer()
+        {
+            //Debug.Log("PlayerCamera.OnStopLocalPlayer");
+            ReleaseCamera();
+        }
+
+        void OnDisable()
+        {
+            //Debug.Log("PlayerCamera.OnDisable");
+            ReleaseCamera();
+        }
+
+        void OnDestroy()
+        {
+            //Debug.Log("PlayerCamera.OnDestroy");
+            ReleaseCamera();
+        }
+
+        void ReleaseCamera()
         {
             if (mainCam != null && mainCam.transform.parent == transform)
             {
+                //Debug.Log("PlayerCamera.ReleaseCamera");
+
                 mainCam.transform.SetParent(null);
-                SceneManager.MoveGameObjectToScene(mainCam.gameObject, SceneManager.GetActiveScene());
                 mainCam.orthographic = true;
                 mainCam.orthographicSize = 15f;
                 mainCam.transform.localPosition = new Vector3(0f, 70f, 0f);
                 mainCam.transform.localEulerAngles = new Vector3(90f, 0f, 0f);
+
+                if (mainCam.gameObject.scene != SceneManager.GetActiveScene())
+                    SceneManager.MoveGameObjectToScene(mainCam.gameObject, SceneManager.GetActiveScene());
+
+                mainCam = null;
             }
         }
     }

Assets/Mirror/Tests/Common/MirrorTest.cs

@@ -1,4 +1,5 @@
 // base class for networking tests to make things easier.
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using NUnit.Framework;
@@ -81,6 +82,18 @@ protected void CreateNetworked(out GameObject go, out NetworkIdentity identity)
             instantiated.Add(go);
         }
 
+        protected void CreateNetworked(out GameObject go, out NetworkIdentity identity, Action<NetworkIdentity> preAwake)
+        {
+            go = new GameObject();
+            identity = go.AddComponent<NetworkIdentity>();
+            preAwake(identity);
+            // Awake is only called in play mode.
+            // call manually for initialization.
+            identity.Awake();
+            // track
+            instantiated.Add(go);
+        }
+
         // create GameObject + NetworkIdentity + NetworkBehaviour<T>
         // add to tracker list if needed (useful for cleanups afterwards)
         protected void CreateNetworked<T>(out GameObject go, out NetworkIdentity identity, out T component)
@@ -269,6 +282,44 @@ protected void CreateNetworkedAndSpawn(
             Assert.That(NetworkClient.spawned.ContainsKey(serverIdentity.netId));
         }
 
+        // create GameObject + NetworkIdentity + NetworkBehaviour & SPAWN
+        // => preAwake callbacks can be used to add network behaviours to the NI
+        // => ownerConnection can be NetworkServer.localConnection if needed.
+        // => returns objects from client and from server.
+        //    will be same in host mode.
+        protected void CreateNetworkedAndSpawn(
+            out GameObject serverGO, out NetworkIdentity serverIdentity, Action<NetworkIdentity> serverPreAwake,
+            out GameObject clientGO, out NetworkIdentity clientIdentity, Action<NetworkIdentity> clientPreAwake,
+            NetworkConnectionToClient ownerConnection = null)
+        {
+            // server & client need to be active before spawning
+            Debug.Assert(NetworkClient.active, "NetworkClient needs to be active before spawning.");
+            Debug.Assert(NetworkServer.active, "NetworkServer needs to be active before spawning.");
+
+            // create one on server, one on client
+            // (spawning has to find it on client, it doesn't create it)
+            CreateNetworked(out serverGO, out serverIdentity, serverPreAwake);
+            CreateNetworked(out clientGO, out clientIdentity, clientPreAwake);
+
+            // give both a scene id and register it on client for spawnables
+            clientIdentity.sceneId = serverIdentity.sceneId = (ulong)serverGO.GetHashCode();
+            NetworkClient.spawnableObjects[clientIdentity.sceneId] = clientIdentity;
+
+            // spawn
+            NetworkServer.Spawn(serverGO, ownerConnection);
+            ProcessMessages();
+
+            // double check isServer/isClient. avoids debugging headaches.
+            Assert.That(serverIdentity.isServer, Is.True);
+            Assert.That(clientIdentity.isClient, Is.True);
+
+            // double check that we have authority if we passed an owner connection
+            if (ownerConnection != null)
+                Debug.Assert(clientIdentity.isOwned == true, $"Behaviour Had Wrong Authority when spawned, This means that the test is broken and will give the wrong results");
+
+            // make sure the client really spawned it.
+            Assert.That(NetworkClient.spawned.ContainsKey(serverIdentity.netId));
+        }
         // create GameObject + NetworkIdentity + NetworkBehaviour & SPAWN
         // => ownerConnection can be NetworkServer.localConnection if needed.
         protected void CreateNetworkedAndSpawn<T>(out GameObject go, out NetworkIdentity identity, out T component, NetworkConnectionToClient ownerConnection = null)

Assets/Mirror/Tests/Editor/NetworkIdentity/NetworkIdentitySerializationTests.cs

@@ -1,4 +1,5 @@
 // OnDe/SerializeSafely tests.
+using System.Collections.Generic;
 using System.Text.RegularExpressions;
 using Mirror.Tests.EditorBehaviours.NetworkIdentities;
 using NUnit.Framework;
@@ -69,6 +70,123 @@ public void SerializeAndDeserializeAll()
             Assert.That(clientObserversComp.value, Is.EqualTo(42)); // observers mode should be in data
         }
 
+        // test serialize -> deserialize of any supported number of components
+        [Test]
+        public void SerializeAndDeserializeN([NUnit.Framework.Range(1, 64)] int numberOfNBs)
+        {
+            List<SerializeTest1NetworkBehaviour> serverNBs = new List<SerializeTest1NetworkBehaviour>();
+            List<SerializeTest1NetworkBehaviour> clientNBs = new List<SerializeTest1NetworkBehaviour>();
+            // need two of both versions so we can serialize -> deserialize
+            CreateNetworkedAndSpawn(
+                out _, out NetworkIdentity serverIdentity, ni =>
+                {
+                    for (int i = 0; i < numberOfNBs; i++)
+                    {
+                        SerializeTest1NetworkBehaviour nb = ni.gameObject.AddComponent<SerializeTest1NetworkBehaviour>();
+                        nb.syncInterval = 0;
+                        nb.syncMode = SyncMode.Observers;
+                        serverNBs.Add(nb);
+                    }
+                },
+                out _, out NetworkIdentity clientIdentity, ni =>
+                {
+                    for (int i = 0; i < numberOfNBs; i++)
+                    {
+                        SerializeTest1NetworkBehaviour nb = ni.gameObject.AddComponent<SerializeTest1NetworkBehaviour>();
+                        nb.syncInterval = 0;
+                        nb.syncMode = SyncMode.Observers;
+                        clientNBs.Add(nb);
+                    }
+                }
+            );
+
+            // INITIAL SYNC
+            // set unique values on server components
+            for (int i = 0; i < serverNBs.Count; i++)
+            {
+                serverNBs[i].value = (i + 1) * 3;
+                serverNBs[i].SetDirty();
+            }
+
+            // serialize server object
+            serverIdentity.SerializeServer(true, ownerWriter, observersWriter);
+
+            // deserialize client object with OBSERVERS payload
+            NetworkReader reader = new NetworkReader(observersWriter.ToArray());
+            clientIdentity.DeserializeClient(reader, true);
+            for (int i = 0; i < clientNBs.Count; i++)
+            {
+                int expected = (i + 1) * 3;
+                Assert.That(clientNBs[i].value, Is.EqualTo(expected), $"Expected the clientNBs[{i}] to have a value of {expected}");
+            }
+
+            // clear dirty bits for incremental sync
+            foreach (SerializeTest1NetworkBehaviour serverNB in serverNBs)
+                serverNB.ClearAllDirtyBits();
+
+            // INCREMENTAL SYNC ALL
+            // set unique values on server components
+            for (int i = 0; i < serverNBs.Count; i++)
+            {
+                serverNBs[i].value = (i + 1) * 11;
+                serverNBs[i].SetDirty();
+            }
+
+            ownerWriter.Reset();
+            observersWriter.Reset();
+            // serialize server object
+            serverIdentity.SerializeServer(false, ownerWriter, observersWriter);
+
+            // deserialize client object with OBSERVERS payload
+            reader = new NetworkReader(observersWriter.ToArray());
+            clientIdentity.DeserializeClient(reader, false);
+            for (int i = 0; i < clientNBs.Count; i++)
+            {
+                int expected = (i + 1) * 11;
+                Assert.That(clientNBs[i].value, Is.EqualTo(expected), $"Expected the clientNBs[{i}] to have a value of {expected}");
+            }
+
+            // clear dirty bits for incremental sync
+            foreach (SerializeTest1NetworkBehaviour serverNB in serverNBs)
+                serverNB.ClearAllDirtyBits();
+
+            // INCREMENTAL SYNC INDIVIDUAL
+            for (int i = 0; i < numberOfNBs; i++)
+            {
+                // reset all client nbs
+                foreach (SerializeTest1NetworkBehaviour clientNB in clientNBs)
+                    clientNB.value = 0;
+
+                int expected = (i + 1) * 7;
+
+                // set unique value on server components
+                serverNBs[i].value = expected;
+                serverNBs[i].SetDirty();
+
+                ownerWriter.Reset();
+                observersWriter.Reset();
+                // serialize server object
+                serverIdentity.SerializeServer(false, ownerWriter, observersWriter);
+
+                // deserialize client object with OBSERVERS payload
+                reader = new NetworkReader(observersWriter.ToArray());
+                clientIdentity.DeserializeClient(reader, false);
+                for (int index = 0; index < clientNBs.Count; index++)
+                {
+                    SerializeTest1NetworkBehaviour clientNB = clientNBs[index];
+                    if (index == i)
+                    {
+                        Assert.That(clientNB.value, Is.EqualTo(expected), $"Expected the clientNBs[{index}] to have a value of {expected}");
+                    }
+                    else
+                    {
+                        Assert.That(clientNB.value, Is.EqualTo(0), $"Expected the clientNBs[{index}] to have a value of 0 since we're not syncing that index (on sync of #{i})");
+                    }
+                }
+            }
+        }
+
+
         // serialization should work even if a component throws an exception.
         // so if first component throws, second should still be serialized fine.
         [Test]

Assets/Mirror/Tests/Editor/NetworkReaderWriter/NetworkWriterTest.cs

@@ -1341,7 +1341,15 @@ public void TestNullList()
             Assert.That(readList, Is.Null);
         }
 
-        [Test, Ignore("TODO")]
+        // writer.Write<T> for HashSet only works if it's actually used by weaver somewhere.
+        // so for TestHashSet() to pass, we need to pretend using a HashSet<int> somewhere.
+        class HashSetNetworkBehaviour : NetworkBehaviour
+        {
+            [Command]
+            public void CmdHashSet(HashSet<int> hashSet) {}
+        }
+
+        [Test] // requires HashSetNetworkBehaviour to exits!
         public void TestHashSet()
         {
             HashSet<int> original = new HashSet<int>() { 1, 2, 3, 4, 5 };
@@ -1353,7 +1361,7 @@ public void TestHashSet()
             Assert.That(readHashSet, Is.EqualTo(original));
         }
 
-        [Test, Ignore("TODO")]
+        [Test] // requires HashSetNetworkBehaviour to exits!
         public void TestNullHashSet()
         {
             NetworkWriter writer = new NetworkWriter();

Assets/Mirror/Transports/Edgegap/EdgegapLobby/EdgegapLobbyKcpTransport.cs

@@ -323,7 +323,7 @@ public void SetServerLobbyParams(LobbyCreateRequest request)
             _request = request;
         }
 
-        private void OnDestroy()
+        public override void OnDestroy()
         {
             // attempt to clean up lobbies, if active
             if (NetworkServer.active)
@@ -340,6 +340,8 @@ private void OnDestroy()
                 // sorry. this can go once the lobby service can timeout lobbies itself
                 Thread.Sleep(300);
             }
+
+            base.OnDestroy();
         }
     }
 }

Assets/Mirror/Transports/Threaded/ThreadedTransport.cs

@@ -197,11 +197,10 @@ void EnsureThread()
             Debug.Log($"ThreadedTransport: started worker thread!");
         }
 
-        protected virtual void OnDestroy()
+        public override void OnDestroy()
         {
             // stop thread fully
-            Shutdown();
-
+            base.OnDestroy();
             // TODO recycle writers.
         }
 

Assets/ScriptTemplates/50-Mirror__Network Manager-NewNetworkManager.cs.txt

@@ -68,14 +68,6 @@ public class #SCRIPTNAME# : NetworkManager
         base.ConfigureHeadlessFrameRate();
     }
 
-    /// <summary>
-    /// called when quitting the application by closing the window / pressing stop in the editor
-    /// </summary>
-    public override void OnApplicationQuit()
-    {
-        base.OnApplicationQuit();
-    }
-
     #endregion
 
     #region Scene Management

Assets/ScriptTemplates/51-Mirror__Network Manager With Actions-NewNetworkManagerWithActions.cs.txt

@@ -15,8 +15,6 @@ public class #SCRIPTNAME# : NetworkManager
     public event Action OnStartAction;
     public event Action OnDestroyAction;
 
-    public event Action OnApplicationQuitAction;
-
     public event Action<string> ServerChangeSceneAction;
     public event Action<string> OnServerChangeSceneAction;
     public event Action<string> OnServerSceneChangedAction;
@@ -117,15 +115,6 @@ public class #SCRIPTNAME# : NetworkManager
         base.ConfigureHeadlessFrameRate();
     }
 
-    /// <summary>
-    /// called when quitting the application by closing the window / pressing stop in the editor
-    /// </summary>
-    public override void OnApplicationQuit()
-    {
-        OnApplicationQuitAction?.Invoke();
-        base.OnApplicationQuit();
-    }
-
     #endregion
 
     #region Scene Management