Started work on node graphs

Examples/Nodes.meta

@@ -0,0 +1,9 @@
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+folderAsset: yes
+timeCreated: 1505462700
+licenseType: Free
+DefaultImporter:
+  userData: 
+  assetBundleName: 
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Examples/Nodes/BaseNode.cs

@@ -0,0 +1,16 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class BaseNode : Node {
+
+	// Use this for initialization
+	void Start () {
+		
+	}
+	
+	// Update is called once per frame
+	void Update () {
+		
+	}
+}

Examples/Nodes/BaseNode.cs.meta

@@ -0,0 +1,12 @@
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+timeCreated: 1505462705
+licenseType: Free
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Scripts/Editor/NodeEditor.cs

@@ -0,0 +1,12 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEditor;
+
+public class NodeEditor : Editor {
+
+    
+    public override void OnInspectorGUI() {
+        base.OnInspectorGUI();
+    }
+}

Scripts/Editor/NodeEditor.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 712c3fc5d9eeb4c45b1e23918df6018f
+timeCreated: 1505462176
+licenseType: Free
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+  serializedVersion: 2
+  defaultReferences: []
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+  userData: 
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Scripts/Editor/NodeEditorAction.cs

@@ -2,26 +2,53 @@
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEditor;
+using System;
+using UNEC;
 
 public static class NodeEditorAction {
 
-    public static void Controls(NodeEditorWindow window) {
+    public static NodeEditorWindow window { get { return NodeEditorWindow.window; } }
+    public static bool dragging;
+
+    public static void Controls() {
         Event e = Event.current;
 
         switch (e.type) {
+            
             case EventType.ScrollWheel:
                 if (e.delta.y > 0) window.zoom += 0.1f * window.zoom;
                 else window.zoom -= 0.1f * window.zoom;
                 break;
             case EventType.MouseDrag:
-                if (e.button == 1) window.panOffset += e.delta*window.zoom;
+                if (e.button == 1) {
+                    window.panOffset += e.delta * window.zoom;
+                    dragging = true;
+                }
                 break;
             case EventType.KeyDown:
-                if (e.keyCode == KeyCode.F) {
-                    window.zoom = 2;
-                    window.panOffset = Vector2.zero;
+                if (e.keyCode == KeyCode.F) Focus();
+                break;
+            case EventType.mouseDown:
+                dragging = false;
+                break;
+            case EventType.MouseUp:
+                if (dragging) return;
+                if (e.button == 1) {
+                    NodeEditorGUI.RightClickContextMenu();
                 }
                 break;
         }
     }
+
+    /// <summary> Puts all nodes in focus. If no nodes are present, resets view to  </summary>
+    public static void Focus() {
+        window.zoom = 2;
+        window.panOffset = Vector2.zero;
+    }
+
+    public static void CreateNode(Type type, Vector2 position) {
+        Node node = window.currentGraph.AddNode(type);
+        Debug.Log("SetNode " + position);
+        node.position.position = position;
+    }
 }

Scripts/Editor/NodeEditorGUI.cs

@@ -2,12 +2,16 @@
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEditor;
+using System;
 
 namespace UNEC {
     /// <summary> Contains GUI methods </summary>
     public static class NodeEditorGUI {
 
+        public static NodeEditorWindow window { get { return NodeEditorWindow.window; } }
+
         public static void DrawGrid(Rect rect, float zoom, Vector2 panOffset) {
+
             rect.position = Vector2.zero;
 
             Vector2 center = rect.size / 2f;
@@ -30,5 +34,56 @@ namespace UNEC {
             GUI.DrawTextureWithTexCoords(rect, gridTex, new Rect(tileOffset, tileAmount));
             GUI.DrawTextureWithTexCoords(rect, crossTex, new Rect(tileOffset + new Vector2(0.5f,0.5f), tileAmount));
         }
+
+        public static void DrawToolbar() {
+            EditorGUILayout.BeginHorizontal("Toolbar");
+
+            if (DropdownButton("File", 50)) FileContextMenu();
+            if (DropdownButton("Edit", 50)) EditContextMenu();
+            if (DropdownButton("View", 50)) { }
+            if (DropdownButton("Settings", 70)) { }
+            if (DropdownButton("Tools", 50)) { }
+
+            // Make the toolbar extend all throughout the window extension.
+            GUILayout.FlexibleSpace();
+
+            EditorGUILayout.EndHorizontal();
+        }
+
+        public static bool DropdownButton(string name, float width) {
+            return GUILayout.Button(name, EditorStyles.toolbarDropDown, GUILayout.Width(width));
+        }
+
+        public static void RightClickContextMenu() {
+            GenericMenu contextMenu = new GenericMenu();
+            Vector2 pos = window.GetMousePositionOnGrid();
+            for (int i = 0; i < NodeEditorReflection.nodeTypes.Length; i++) {
+                Type type = NodeEditorReflection.nodeTypes[i];
+                contextMenu.AddItem(new GUIContent(NodeEditorReflection.nodeTypes[i].ToString()), false, () => {
+                    NodeEditorAction.CreateNode(type, pos);
+                });
+            }
+
+            contextMenu.DropDown(new Rect(Event.current.mousePosition, Vector2.zero));
+        }
+
+        public static void FileContextMenu() {
+            GenericMenu contextMenu = new GenericMenu();
+            contextMenu.AddItem(new GUIContent("Create New"), false, null);
+            contextMenu.AddItem(new GUIContent("Load"), false, null);
+
+            contextMenu.AddSeparator("");
+            contextMenu.AddItem(new GUIContent("Save"), false, null);
+            contextMenu.AddItem(new GUIContent("Save As"), false, null);
+
+            contextMenu.DropDown(new Rect(5f, 17f, 0f, 0f));
+        }
+
+        public static void EditContextMenu() {
+            GenericMenu contextMenu = new GenericMenu();
+            contextMenu.AddItem(new GUIContent("Clear"), false, () => window.currentGraph.Clear());
+
+            contextMenu.DropDown(new Rect(5f, 17f, 0f, 0f));
+        }
     }
 }

Scripts/Editor/NodeEditorReflection.cs

@@ -7,7 +7,7 @@ namespace UNEC {
     public static class NodeEditorReflection {
     
         public static Type[] nodeTypes { get { return _nodeTypes != null ? _nodeTypes : _nodeTypes = GetNodeTypes(); } }
-        public static Type[] _nodeTypes;
+        private static Type[] _nodeTypes;
 
         public static Type[] GetNodeTypes() {
             //Get all classes deriving from Node via reflection

Scripts/Editor/NodeEditorResources.cs

@@ -10,10 +10,10 @@ namespace UNEC {
         private static Texture2D _crossTexture;
 
 
-        private static Color backgroundColor = new Color(0.15f, 0.15f, 0.15f);
-        private static Color veinColor = new Color(0.2f, 0.2f, 0.2f);
-        private static Color arteryColor = new Color(0.28f, 0.28f, 0.28f);
-        private static Color crossColor = new Color(0.4f, 0.4f, 0.4f);
+        private static Color backgroundColor = new Color(0.18f, 0.18f, 0.18f);
+        private static Color veinColor = new Color(0.25f, 0.25f, 0.25f);
+        private static Color arteryColor = new Color(0.34f, 0.34f, 0.34f);
+        private static Color crossColor = new Color(0.45f, 0.45f, 0.45f);
 
         public static Texture2D GenerateGridTexture() {
             Texture2D tex = new Texture2D(64,64);

Scripts/Editor/NodeEditorWindow.cs

@@ -6,23 +6,75 @@ using UNEC;
 
 public class NodeEditorWindow : EditorWindow {
 
+
+    public static NodeEditorWindow window { get { return focusedWindow as NodeEditorWindow; } }
+
+    public NodeGraph currentGraph { get { return _currentGraph != null ? _currentGraph : _currentGraph = new NodeGraph(); }}
+    public NodeGraph _currentGraph;
     public Vector2 panOffset { get { return _panOffset; } set { _panOffset = value; Repaint(); } }
     private Vector2 _panOffset;
     public float zoom { get { return _zoom; } set { _zoom = Mathf.Clamp(value, 1f, 5f); Repaint(); } }
     private float _zoom = 1;
 
+
     [MenuItem("Window/UNEC")]
     static void Init() {
         NodeEditorWindow w = CreateInstance<NodeEditorWindow>();
+        w.titleContent = new GUIContent("UNEC");
         w.Show();
     }
 
     private void OnGUI() {
+        NodeEditorAction.Controls();
 
-        NodeEditorAction.Controls(this);
 
         BeginWindows();
         NodeEditorGUI.DrawGrid(position, zoom, panOffset);
+        NodeEditorGUI.DrawToolbar();
+        DrawNodes();
         EndWindows();
+
+    }
+
+    private void DrawNodes() {
+        Matrix4x4 m = GUI.matrix;
+        GUI.EndClip();
+        GUIUtility.ScaleAroundPivot(Vector2.one / zoom, position.size * 0.5f);
+        foreach (KeyValuePair<string, Node> kvp in currentGraph.nodes) {
+            Node node = kvp.Value;
+
+            //Vector2 p = node.position.position + (position.size *0.5f) + panOffset;
+            //Get node position
+            Vector2 windowPos = GridToWindowPosition(node.position.position);
+            windowPos = -windowPos;
+
+            Rect windowRect = new Rect(windowPos, new Vector2(200,200));
+            windowRect = GUI.Window(0, windowRect, DraggableWindow, node.ToString());
+            //node.position = windowRect.position;
+        }
+        GUI.matrix = m;
+        Vector2 padding = new Vector2(0, 0);
+        padding *= zoom;
+        GUI.BeginClip(new Rect(
+            -(((position.width*zoom) - position.width)*0.5f) + (padding.x),
+            -(((position.height * zoom) - position.height) * 0.5f) + (padding.y),
+            (position.width*zoom)- (padding.x * 2),
+            (position.height * zoom) - (padding.y * 2)));
+    }
+
+    private void DraggableWindow(int windowID) {
+        GUI.DragWindow(new Rect(0, 0, 10000, 20));
+    }
+
+    public Vector2 GetMousePositionOnGrid() {
+        return WindowToGridPosition(Event.current.mousePosition);
+    }
+
+    public Vector2 WindowToGridPosition(Vector2 windowPosition) {
+        return windowPosition - (window.position.size * 0.5f) - (panOffset * zoom);
+    }
+
+    public Vector2 GridToWindowPosition(Vector2 gridPosition) {
+        return ((window.position.size * 0.5f) - (panOffset * zoom)) + gridPosition;
     }
 }

Scripts/Node.cs

@@ -2,18 +2,7 @@
 using System.Collections.Generic;
 using UnityEngine;
 
-namespace UNEC {
-    /// <summary> Base class for all nodes </summary>
-    public abstract class Node : MonoBehaviour {
-
-        // Use this for initialization
-        void Start() {
-
-        }
-
-        // Update is called once per frame
-        void Update() {
-
-        }
-    }
+/// <summary> Base class for all nodes </summary>
+public abstract class Node {
+    public Rect position = new Rect(0,0,200,200);
 }

Scripts/NodeGraph.cs

@@ -0,0 +1,33 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using System;
+
+/// <summary> Base class for all node graphs </summary>
+public class NodeGraph {
+
+    public Dictionary<string, Node> nodes = new Dictionary<string, Node>();
+
+    public T AddNode<T>() where T : Node {
+        T node = default(T);
+        nodes.Add(GetGUID(), node);
+        return node;
+    }
+
+    public Node AddNode(Type type)  {
+        Node node = (Node)Activator.CreateInstance(type);
+        if (node == null) return null;
+        nodes.Add(GetGUID(), node);
+        return node;
+    }
+
+    private string GetGUID() {
+        string guid = Guid.NewGuid().ToString();
+        while(nodes.ContainsKey(guid)) guid = GetGUID();
+        return guid;
+    }
+
+    public void Clear() {
+        nodes.Clear();
+    }
+}

Scripts/NodeGraph.cs.meta

@@ -0,0 +1,12 @@
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+timeCreated: 1505461376
+licenseType: Free
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+  serializedVersion: 2
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