Merge branch 'master-upstream'

README.md

@@ -10,6 +10,8 @@
 
 Support xNode on [Ko-fi](https://ko-fi.com/Z8Z5DYWA) or [Patreon](https://www.patreon.com/thorbrigsted)
 
+For full Odin support, consider using [KAJed82's fork](https://github.com/KAJed82/xNode)
+
 ### xNode
 Thinking of developing a node-based plugin? Then this is for you. You can download it as an archive and unpack to a new unity project, or connect it as git submodule.
 

Scripts/Editor/NodeEditorAction.cs

@@ -221,7 +221,7 @@ namespace XNodeEditor {
                         //Port drag release
                         if (IsDraggingPort) {
                             // If connection is valid, save it
-                            if (draggedOutputTarget != null && draggedOutput.CanConnectTo(draggedOutputTarget)) {
+                            if (draggedOutputTarget != null && graphEditor.CanConnect(draggedOutput, draggedOutputTarget)) {
                                 XNode.Node node = draggedOutputTarget.node;
                                 if (graph.nodes.Count != 0) draggedOutput.Connect(draggedOutputTarget);
 
@@ -553,12 +553,9 @@ namespace XNodeEditor {
         public void AutoConnect(XNode.Node node) {
             if (autoConnectOutput == null) return;
 
-            // Find input port of same type
+            // Find compatible input port
-            XNode.NodePort inputPort = node.Ports.FirstOrDefault(x => x.IsInput && x.ValueType == autoConnectOutput.ValueType);
+            XNode.NodePort inputPort = node.Ports.FirstOrDefault(x => x.IsInput && graphEditor.CanConnect(autoConnectOutput, x));
-            // Fallback to input port
+            if (inputPort != null) autoConnectOutput.Connect(inputPort);
-            if (inputPort == null) inputPort = node.Ports.FirstOrDefault(x => x.IsInput);
-            // Autoconnect if connection is compatible
-            if (inputPort != null && inputPort.CanConnectTo(autoConnectOutput)) autoConnectOutput.Connect(inputPort);
 
             // Save changes
             EditorUtility.SetDirty(graph);

Scripts/Editor/NodeEditorGUILayout.cs

@@ -394,6 +394,7 @@ namespace XNodeEditor {
                 };
             list.onReorderCallback =
                 (ReorderableList rl) => {
+                    serializedObject.Update();
                     bool hasRect = false;
                     bool hasNewRect = false;
                     Rect rect = Rect.zero;

Scripts/Editor/NodeGraphEditor.cs

@@ -59,6 +59,13 @@ namespace XNodeEditor {
                 return 0;
         }
 
+        /// <summary>
+        /// Called before connecting two ports in the graph view to see if the output port is compatible with the input port
+        /// </summary>
+        public virtual bool CanConnect(XNode.NodePort output, XNode.NodePort input) {
+            return output.CanConnectTo(input);
+        }
+
         /// <summary>
         /// Add items for the context menu when right-clicking this node.
         /// Override to add custom menu items.
@@ -96,7 +103,7 @@ namespace XNodeEditor {
                 if (disallowed) menu.AddItem(new GUIContent(path), false, null);
                 else menu.AddItem(new GUIContent(path), false, () => {
                     XNode.Node node = CreateNode(type, pos);
-                    NodeEditorWindow.current.AutoConnect(node);
+                    if (node != null) NodeEditorWindow.current.AutoConnect(node); // handle null nodes to avoid nullref exceptions
                 });
             }
             menu.AddSeparator("");
@@ -206,6 +213,7 @@ namespace XNodeEditor {
         public virtual XNode.Node CreateNode(Type type, Vector2 position) {
             Undo.RecordObject(target, "Create Node");
             XNode.Node node = target.AddNode(type);
+            if (node == null) return null; // handle null nodes to avoid nullref exceptions
             Undo.RegisterCreatedObjectUndo(node, "Create Node");
             node.position = position;
             if (node.name == null || node.name.Trim() == "") node.name = NodeEditorUtilities.NodeDefaultName(type);
@@ -221,7 +229,7 @@ namespace XNodeEditor {
             XNode.Node node = target.CopyNode(original);
             Undo.RegisterCreatedObjectUndo(node, "Duplicate Node");
             node.name = original.name;
-            AssetDatabase.AddObjectToAsset(node, target);
+            if (!string.IsNullOrEmpty(AssetDatabase.GetAssetPath(target))) AssetDatabase.AddObjectToAsset(node, target);
             if (NodeEditorPreferences.GetSettings().autoSave) AssetDatabase.SaveAssets();
             return node;
         }

Scripts/Editor/RenamePopup.cs

@@ -53,8 +53,10 @@ namespace XNodeEditor {
                 if (GUILayout.Button("Revert to default") || (e.isKey && e.keyCode == KeyCode.Return)) {
                     target.name = NodeEditorUtilities.NodeDefaultName(target.GetType());
                     NodeEditor.GetEditor((XNode.Node)target, NodeEditorWindow.current).OnRename();
-                    AssetDatabase.SetMainObject((target as XNode.Node).graph, AssetDatabase.GetAssetPath(target));
+                    if (!string.IsNullOrEmpty(AssetDatabase.GetAssetPath(target))) {
-                    AssetDatabase.ImportAsset(AssetDatabase.GetAssetPath(target));
+                        AssetDatabase.SetMainObject((target as XNode.Node).graph, AssetDatabase.GetAssetPath(target));
+                        AssetDatabase.ImportAsset(AssetDatabase.GetAssetPath(target));
+                    }
                     Close();
                     target.TriggerOnValidate();
                 }
@@ -64,8 +66,10 @@ namespace XNodeEditor {
                 if (GUILayout.Button("Apply") || (e.isKey && e.keyCode == KeyCode.Return)) {
                     target.name = input;
                     NodeEditor.GetEditor((XNode.Node)target, NodeEditorWindow.current).OnRename();
-                    AssetDatabase.SetMainObject((target as XNode.Node).graph, AssetDatabase.GetAssetPath(target));
+                    if (!string.IsNullOrEmpty(AssetDatabase.GetAssetPath(target))) {
-                    AssetDatabase.ImportAsset(AssetDatabase.GetAssetPath(target));
+                        AssetDatabase.SetMainObject((target as XNode.Node).graph, AssetDatabase.GetAssetPath(target));
+                        AssetDatabase.ImportAsset(AssetDatabase.GetAssetPath(target));
+                    }
                     Close();
                     target.TriggerOnValidate();
                 }

Scripts/NodeDataCache.cs

@@ -70,6 +70,9 @@ namespace XNode {
                         for (int i = 0; i < reconnectConnections.Count; i++) {
                             NodePort connection = reconnectConnections[i];
                             if (connection == null) continue;
+                            // CAVEAT: Ports connected under special conditions defined in graphEditor.CanConnect overrides will not auto-connect.
+                            // To fix this, this code would need to be moved to an editor script and call graphEditor.CanConnect instead of port.CanConnectTo.
+                            // This is only a problem in the rare edge case where user is using non-standard CanConnect overrides and changes port type of an already connected port
                             if (port.CanConnectTo(connection)) port.Connect(connection);
                         }
                     }
@@ -204,7 +207,7 @@ namespace XNode {
                     portDataCache[nodeType].Add(new NodePort(fieldInfo[i]));
                 }
 
-                if(formerlySerializedAsAttribute != null) {
+                if (formerlySerializedAsAttribute != null) {
                     if (formerlySerializedAsCache == null) formerlySerializedAsCache = new Dictionary<System.Type, Dictionary<string, string>>();
                     if (!formerlySerializedAsCache.ContainsKey(nodeType)) formerlySerializedAsCache.Add(nodeType, new Dictionary<string, string>());