SceneGrid SceneView test

Editor/ScenePartitionEditorWindow.cs

@@ -6,6 +6,8 @@ namespace VertexColor.ScenePartition.Editor
 {
     public class ScenePartitionEditorWindow : EditorWindow
     {
+        private const int cellSize = 10;
+
         private Vector2 scrollPos = Vector2.zero;
 
         [MenuItem("Max/ScenePartitionWindow")]

Editor/ScenePartitionSceneViewEditor.cs

@@ -0,0 +1,69 @@
+using UnityEditor;
+using UnityEngine;
+using VertexColor.ScenePartition.Editor;
+
+[InitializeOnLoad]
+public class ScenePartitionSceneViewEditor : Editor
+{
+    private const int cellSize = 10;
+
+    static ScenePartitionSceneViewEditor()
+    {
+        SceneView.duringSceneGui += HandleDuringSceneGui;
+    }
+
+    private static void HandleDuringSceneGui(SceneView sceneView)
+    {
+        if (Event.current.modifiers != EventModifiers.Control) return;
+
+        Vector3 gridPosition = CalculateGridPosition(Event.current.mousePosition);
+        int gridId = SceneGrid.CalculateGridPosition(gridPosition, 10);
+
+        int x = Mathf.FloorToInt(gridPosition.x / cellSize);
+        int z = Mathf.FloorToInt(gridPosition.z / cellSize);
+
+        Vector3 cellOrign = new Vector3(x * cellSize, 0, z * cellSize);
+        Vector3[] lines = new Vector3[] {
+            new Vector3(0, 0, 0) + cellOrign, new Vector3(0, 0, cellSize) + cellOrign,                  // Left Bottom -> Left Top
+            new Vector3(cellSize, 0, 0) + cellOrign, new Vector3(cellSize, 0, cellSize) + cellOrign,    // Right Bottom -> Right Top
+            new Vector3(0, 0, 0) + cellOrign, new Vector3(cellSize, 0, 0) + cellOrign,                  // Left Bottom -> Right Bottom
+            new Vector3(0, 0, cellSize) + cellOrign, new Vector3(cellSize, 0, cellSize) + cellOrign,    // Left Top -> Right Top
+        };
+
+        Handles.DrawDottedLines(lines, 10.0f);
+        Handles.Label(cellOrign + new Vector3(cellSize * 0.5f, 0, cellSize * 0.5f), new GUIContent($"{gridId}"));
+
+        if (Event.current.button == 1 && Event.current.type == EventType.MouseDown)
+        {
+            GenericMenu menu = new GenericMenu();
+
+            menu.AddItem(new GUIContent($"Load {gridId}"), false, Load, gridId);
+            menu.ShowAsContext();
+
+            Event.current.Use();
+        }
+
+        SceneView.RepaintAll();
+    }
+
+    private static Vector3 CalculateGridPosition(Vector2 mousePosition)
+    {
+        if (Event.current == null) return Vector3.zero;
+
+        Ray ray = HandleUtility.GUIPointToWorldRay(mousePosition);
+        Plane plane = new Plane(Vector3.up, Vector3.zero); // Horizontal plane at y = 0
+
+        if (!plane.Raycast(ray, out float distance)) return Vector3.zero;
+
+        Vector3 intersectionPoint = ray.GetPoint(distance);
+        return intersectionPoint;
+    }
+
+    private static void Load(object gridId)
+    {
+        if (gridId == null) return;
+        if (gridId is not int gridPos) return;
+
+
+    }
+}

Editor/ScenePartitionSceneViewEditor.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 997bd9a76e0528c4a901941b5b70bc5e
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/SceneGrid.cs

@@ -16,7 +16,7 @@ public class SceneGrid
 
         public void Insert(uint id, Vector3 point)
         {
-            int gridId = CalculateGridPosition(point);
+            int gridId = CalculateGridPosition(point, cellSize);
             if (grid.TryGetValue(gridId, out List<uint> ids))
             {
                 ids.Add(id);
@@ -27,7 +27,7 @@ public void Insert(uint id, Vector3 point)
             }
         }
 
-        public int CalculateGridPosition(Vector3 point)
+        public static int CalculateGridPosition(Vector3 point, int cellSize)
         {
             int x = Mathf.FloorToInt(point.x / cellSize);
             int z = Mathf.FloorToInt(point.z / cellSize);