【a】XNode

Assets/10.XNode/Scripts/Editor/NodeGraphImporter.cs

@@ -0,0 +1,45 @@
+using System;
+using System.IO;
+using System.Linq;
+using UnityEditor;
+using UnityEditor.Experimental.AssetImporters;
+using UnityEngine;
+using XNode;
+
+namespace XNodeEditor {
+    /// <summary> Deals with modified assets </summary>
+    class NodeGraphImporter : AssetPostprocessor {
+        private static void OnPostprocessAllAssets(string[] importedAssets, string[] deletedAssets, string[] movedAssets, string[] movedFromAssetPaths) {
+            foreach (string path in importedAssets) {
+                // Skip processing anything without the .asset extension
+                if (Path.GetExtension(path) != ".asset") continue;
+
+                // Get the object that is requested for deletion
+                NodeGraph graph = AssetDatabase.LoadAssetAtPath<NodeGraph>(path);
+                if (graph == null) continue;
+
+                // Get attributes
+                Type graphType = graph.GetType();
+                NodeGraph.RequireNodeAttribute[] attribs = Array.ConvertAll(
+                    graphType.GetCustomAttributes(typeof(NodeGraph.RequireNodeAttribute), true), x => x as NodeGraph.RequireNodeAttribute);
+
+                Vector2 position = Vector2.zero;
+                foreach (NodeGraph.RequireNodeAttribute attrib in attribs) {
+                    if (attrib.type0 != null) AddRequired(graph, attrib.type0, ref position);
+                    if (attrib.type1 != null) AddRequired(graph, attrib.type1, ref position);
+                    if (attrib.type2 != null) AddRequired(graph, attrib.type2, ref position);
+                }
+            }
+        }
+
+        private static void AddRequired(NodeGraph graph, Type type, ref Vector2 position) {
+            if (!graph.nodes.Any(x => x.GetType() == type)) {
+                XNode.Node node = graph.AddNode(type);
+                node.position = position;
+                position.x += 200;
+                if (node.name == null || node.name.Trim() == "") node.name = NodeEditorUtilities.NodeDefaultName(type);
+                if (!string.IsNullOrEmpty(AssetDatabase.GetAssetPath(graph))) AssetDatabase.AddObjectToAsset(node, graph);
+            }
+        }
+    }
+}