feat(networkedvar): Added support for safe networked vars that doesnt spill data (#205)

Author: TwoTenPvP

MLAPI-Editor/NetworkingManagerEditor.cs

@@ -33,6 +33,7 @@ public class NetworkingManagerEditor : Editor
     private SerializedProperty secondsHistoryProperty;
     private SerializedProperty enableTimeResyncProperty;
     private SerializedProperty enableNetworkedVarProperty;
+    private SerializedProperty ensureNetworkedVarLengthSafetyProperty;
     private SerializedProperty forceSamePrefabsProperty;
     private SerializedProperty usePrefabSyncProperty;
     private SerializedProperty rpcHashSizeProperty;
@@ -106,6 +107,7 @@ private void Init()
         secondsHistoryProperty = networkConfigProperty.FindPropertyRelative("SecondsHistory");
         enableTimeResyncProperty = networkConfigProperty.FindPropertyRelative("EnableTimeResync");
         enableNetworkedVarProperty = networkConfigProperty.FindPropertyRelative("EnableNetworkedVar");
+        ensureNetworkedVarLengthSafetyProperty = networkConfigProperty.FindPropertyRelative("EnsureNetworkedVarLengthSafety");
         forceSamePrefabsProperty = networkConfigProperty.FindPropertyRelative("ForceSamePrefabs");
         usePrefabSyncProperty = networkConfigProperty.FindPropertyRelative("UsePrefabSync");
         rpcHashSizeProperty = networkConfigProperty.FindPropertyRelative("RpcHashSize");
@@ -139,6 +141,7 @@ private void CheckNullProperties()
         secondsHistoryProperty = networkConfigProperty.FindPropertyRelative("SecondsHistory");
         enableTimeResyncProperty = networkConfigProperty.FindPropertyRelative("EnableTimeResync");
         enableNetworkedVarProperty = networkConfigProperty.FindPropertyRelative("EnableNetworkedVar");
+        ensureNetworkedVarLengthSafetyProperty = networkConfigProperty.FindPropertyRelative("EnsureNetworkedVarLengthSafety");
         forceSamePrefabsProperty = networkConfigProperty.FindPropertyRelative("ForceSamePrefabs");
         usePrefabSyncProperty = networkConfigProperty.FindPropertyRelative("UsePrefabSync");
         rpcHashSizeProperty = networkConfigProperty.FindPropertyRelative("RpcHashSize");
@@ -279,6 +282,7 @@ public override void OnInspectorGUI()
             using (new EditorGUI.DisabledScope(!networkingManager.NetworkConfig.EnableNetworkedVar))
             {
                 EditorGUILayout.PropertyField(maxObjectUpdatesPerTickProperty);
+                EditorGUILayout.PropertyField(ensureNetworkedVarLengthSafetyProperty);
             }            
 
             EditorGUILayout.LabelField("Connection", EditorStyles.boldLabel);

MLAPI/Data/NetworkConfig.cs

@@ -102,6 +102,11 @@ public class NetworkConfig
         [Tooltip("Whether or not to enable the NetworkedVar system")]
         public bool EnableNetworkedVar = true;
         /// <summary>
+        /// Whether or not to ensure that NetworkedVars can be read even if a client accidentally writes where its not allowed to. This costs some CPU and bandwdith.
+        /// </summary>
+        [Tooltip("Ensures that NetworkedVars can be read even if a client accidental writes where its not allowed to. This will cost some CPU time and bandwidth")]
+        public bool EnsureNetworkedVarLengthSafety = false;
+        /// <summary>
         /// Wheter or not the MLAPI should check for differences in the prefabs at connection. 
         /// If you dynamically add prefabs at runtime, turn this OFF
         /// </summary>
@@ -206,6 +211,7 @@ public string ToBase64()
                     writer.WriteBool(config.SignKeyExchange);
                     writer.WriteInt32Packed(config.LoadSceneTimeOut);
                     writer.WriteBool(config.EnableTimeResync);
+                    writer.WriteBool(config.EnsureNetworkedVarLengthSafety);
                     writer.WriteBits((byte)config.RpcHashSize, 3);
                     writer.WriteBool(ForceSamePrefabs);
                     writer.WriteBool(UsePrefabSync);
@@ -250,6 +256,7 @@ public void FromBase64(string base64)
                     config.SignKeyExchange = reader.ReadBool();
                     config.LoadSceneTimeOut = reader.ReadInt32Packed();
                     config.EnableTimeResync = reader.ReadBool();
+                    config.EnsureNetworkedVarLengthSafety = reader.ReadBool();
                     config.RpcHashSize = (HashSize)reader.ReadBits(3);
                     config.ForceSamePrefabs = reader.ReadBool();
                     config.UsePrefabSync = reader.ReadBool();
@@ -296,6 +303,7 @@ public ulong GetConfig(bool cache = true)
                     writer.WriteBool(EnableNetworkedVar);
                     writer.WriteBool(ForceSamePrefabs);
                     writer.WriteBool(UsePrefabSync);
+                    writer.WriteBool(EnsureNetworkedVarLengthSafety);
                     writer.WriteBool(EnableEncryption);
                     writer.WriteBool(SignKeyExchange);
                     writer.WriteBits((byte)RpcHashSize, 3);