adding obstacle tool

src/DotRecast.Recast.Demo/RecastDemo.cs

@@ -383,6 +383,7 @@ public class RecastDemo : IRecastDemoChannel
         toolset = new RcToolsetView(
             new TestNavmeshTool(),
             new TileTool(),
+            new ObstacleTool(),
             new OffMeshConnectionTool(),
             new ConvexVolumeTool(),
             new CrowdTool(),

src/DotRecast.Recast.Demo/Tools/IRcTool.cs

@@ -28,14 +28,9 @@ public interface IRcTool
 {
     ISampleTool GetTool();
     void OnSampleChanged();
-    
     void Layout();
-
     void HandleClick(RcVec3f s, RcVec3f p, bool shift);
-
     void HandleRender(NavMeshRenderer renderer);
-
     void HandleUpdate(float dt);
-
     void HandleClickRay(RcVec3f start, RcVec3f direction, bool shift);
 }

src/DotRecast.Recast.Demo/Tools/ObstacleTool.cs

@@ -0,0 +1,47 @@
+using DotRecast.Core;
+using DotRecast.Recast.Demo.Draw;
+using DotRecast.Recast.DemoTool;
+using DotRecast.Recast.DemoTool.Tools;
+using Serilog;
+
+namespace DotRecast.Recast.Demo.Tools;
+
+public class ObstacleTool : IRcTool
+{
+    private static readonly ILogger Logger = Log.ForContext<ObstacleTool>();
+    private readonly ObstacleToolImpl _impl;
+
+    public ObstacleTool()
+    {
+        _impl = new();
+    }
+
+    public ISampleTool GetTool()
+    {
+        return _impl;
+    }
+
+    public void OnSampleChanged()
+    {
+    }
+
+    public void Layout()
+    {
+    }
+
+    public void HandleClick(RcVec3f s, RcVec3f p, bool shift)
+    {
+    }
+
+    public void HandleRender(NavMeshRenderer renderer)
+    {
+    }
+
+    public void HandleUpdate(float dt)
+    {
+    }
+
+    public void HandleClickRay(RcVec3f start, RcVec3f direction, bool shift)
+    {
+    }
+}

src/DotRecast.Recast.DemoTool/Tools/ObstacleToolImpl.cs

@@ -0,0 +1,22 @@
+namespace DotRecast.Recast.DemoTool.Tools
+{
+    public class ObstacleToolImpl : ISampleTool
+    {
+        private Sample _sample;
+        
+        public string GetName()
+        {
+            return "Create Temp Obstacles";
+        }
+
+        public void SetSample(Sample sample)
+        {
+            _sample = sample;
+        }
+
+        public Sample GetSample()
+        {
+            return _sample;
+        }
+    }
+}