add recast demo message

src/DotRecast.Detour/DtNavMesh.cs

@@ -20,7 +20,6 @@ freely, subject to the following restrictions:
 
 using System;
 using System.Collections.Generic;
-using System.Collections.Immutable;
 using DotRecast.Core;
 
 namespace DotRecast.Detour

src/DotRecast.Recast.Demo/Messages/IRecastDemoChannel.cs

@@ -0,0 +1,6 @@
+namespace DotRecast.Recast.Demo.Messages;
+
+public interface IRecastDemoChannel
+{
+    void SendMessage(IRecastDemoMessage message);
+}

src/DotRecast.Recast.Demo/Messages/IRecastDemoMessage.cs

@@ -0,0 +1,6 @@
+namespace DotRecast.Recast.Demo.Messages;
+
+public class IRecastDemoMessage
+{
+    
+}

src/DotRecast.Recast.Demo/Messages/SourceGeomSelected.cs

@@ -0,0 +1,6 @@
+namespace DotRecast.Recast.Demo.Messages;
+
+public class SourceGeomSelected : IRecastDemoMessage
+{
+    public required string FilePath { get; init; }
+}

src/DotRecast.Recast.Demo/RecastDemo.cs

@@ -37,6 +37,7 @@ using DotRecast.Detour.Extras.Unity.Astar;
 using DotRecast.Detour.Io;
 using DotRecast.Recast.DemoTool.Builder;
 using DotRecast.Recast.Demo.Draw;
+using DotRecast.Recast.Demo.Messages;
 using DotRecast.Recast.DemoTool.Geom;
 using DotRecast.Recast.Demo.Tools;
 using DotRecast.Recast.Demo.UI;
@@ -48,7 +49,7 @@ using Window = Silk.NET.Windowing.Window;
 
 namespace DotRecast.Recast.Demo;
 
-public class RecastDemo
+public class RecastDemo : IRecastDemoChannel
 {
     private static readonly ILogger Logger = Log.ForContext<RecastDemo>();
 
@@ -117,9 +118,11 @@ public class RecastDemo
 
     private long prevFrameTime;
     private RecastDebugDraw dd;
+    private Queue<IRecastDemoMessage> _messages;
 
     public RecastDemo()
     {
+        _messages = new();
     }
 
     public void Run()
@@ -370,7 +373,7 @@ public class RecastDemo
         DemoInputGeomProvider geom = LoadInputMesh(Loader.ToBytes("nav_test.obj"));
         sample = new Sample(geom, ImmutableArray<RecastBuilderResult>.Empty, null);
 
-        settingsView = new RcSettingsView();
+        settingsView = new RcSettingsView(this);
         settingsView.SetSample(sample);
 
         toolset = new RcToolsetView(
@@ -491,14 +494,7 @@ public class RecastDemo
             simIter++;
         }
 
-        if (settingsView.IsMeshInputTrigerred())
-        {
-            var bytes = Loader.ToBytes(settingsView.GetMeshInputFilePath());
-            var geom = LoadInputMesh(bytes);
-
-            sample.Update(geom, ImmutableArray<RecastBuilderResult>.Empty, null);
-        }
-        else if (settingsView.IsNavMeshInputTrigerred())
+        if (settingsView.IsNavMeshInputTrigerred())
         {
             // try (MemoryStack stack = StackPush()) {
             //     PointerBuffer aFilterPatterns = stack.MallocPointer(4);
@@ -758,6 +754,11 @@ public class RecastDemo
             toolset.SetSample(sample);
         }
 
+        if (_messages.TryDequeue(out var msg))
+        {
+            OnMessage(msg);
+        }
+
 
         var io = ImGui.GetIO();
 
@@ -794,4 +795,21 @@ public class RecastDemo
 
         window.SwapBuffers();
     }
+
+    public void SendMessage(IRecastDemoMessage message)
+    {
+        _messages.Enqueue(message);
+    }
+
+    public void OnMessage(IRecastDemoMessage message)
+    {
+        if (message is SourceGeomSelected args)
+        {
+            var bytes = Loader.ToBytes(args.FilePath);
+            var geom = LoadInputMesh(bytes);
+
+            sample.Update(geom, ImmutableArray<RecastBuilderResult>.Empty, null);
+        }
+    }
+    
 }

src/DotRecast.Recast.Demo/UI/RcSettingsView.cs

@@ -23,6 +23,7 @@ using System.Linq;
 using System.Numerics;
 using DotRecast.Core;
 using DotRecast.Recast.Demo.Draw;
+using DotRecast.Recast.Demo.Messages;
 using DotRecast.Recast.DemoTool;
 using ImGuiNET;
 using Serilog;
@@ -31,8 +32,9 @@ namespace DotRecast.Recast.Demo.UI;
 
 public class RcSettingsView : IRcView
 {
-    private static readonly ILogger Logger = Log.ForContext<RecastDemo>();
+    private static readonly ILogger Logger = Log.ForContext<RcSettingsView>();
 
+    private readonly IRecastDemoChannel _channel;
     private bool buildTriggered;
     private long buildTime;
 
@@ -43,8 +45,6 @@ public class RcSettingsView : IRcView
 
     private int drawMode = DrawMode.DRAWMODE_NAVMESH.Idx;
 
-    private string meshInputFilePath;
-    private bool meshInputTrigerred;
     private bool navMeshInputTrigerred;
 
     private bool _isHovered;
@@ -53,8 +53,9 @@ public class RcSettingsView : IRcView
     private Sample _sample;
     private RcCanvas _canvas;
 
-    public RcSettingsView()
+    public RcSettingsView(IRecastDemoChannel channel)
     {
+        _channel = channel;
     }
 
     public void SetSample(Sample sample)
@@ -104,17 +105,15 @@ public class RcSettingsView : IRcView
             var picker = ImFilePicker.GetFilePicker(strLoadSourceGeom, Path.Combine(Environment.CurrentDirectory), ".obj");
             if (picker.Draw())
             {
-                meshInputTrigerred = true;
-                meshInputFilePath = picker.SelectedFile;
+                _channel.SendMessage(new SourceGeomSelected()
+                {
+                    FilePath = picker.SelectedFile,
+                });
                 ImFilePicker.RemoveFilePicker(strLoadSourceGeom);
             }
 
             ImGui.EndPopup();
         }
-        else
-        {
-            meshInputTrigerred = false;
-        }
 
         ImGui.Text($"Verts: {voxels[0]} Tris: {voxels[1]}");
         ImGui.NewLine();
@@ -192,8 +191,9 @@ public class RcSettingsView : IRcView
         ImGui.Text($"Build Time: {buildTime} ms");
 
         ImGui.Separator();
-        buildTriggered = ImGui.Button("Build Nav Mesh");
-        const string strLoadNavMesh = "Load Nav Mesh...";
+        buildTriggered = ImGui.Button("Build NavMesh");
+        {
+            const string strLoadNavMesh = "Load NavMesh";
             if (ImGui.Button(strLoadNavMesh))
             {
                 ImGui.OpenPopup(strLoadNavMesh);
@@ -205,12 +205,22 @@ public class RcSettingsView : IRcView
                 var picker = ImFilePicker.GetFilePicker(strLoadNavMesh, Path.Combine(Environment.CurrentDirectory));
                 if (picker.Draw())
                 {
-                Console.WriteLine(picker.SelectedFile);
+                    Logger.Information(picker.SelectedFile);
                     ImFilePicker.RemoveFilePicker(strLoadNavMesh);
                 }
 
                 ImGui.EndPopup();
             }
+        }
+
+        {
+            const string strSaveNavMesh = "Save NavMesh";
+            if (ImGui.Button(strSaveNavMesh))
+            {
+                
+            }
+        }
+
 
         ImGui.NewLine();
 
@@ -262,16 +272,6 @@ public class RcSettingsView : IRcView
         this.maxPolys = maxPolys;
     }
 
-    public bool IsMeshInputTrigerred()
-    {
-        return meshInputTrigerred;
-    }
-
-    public string GetMeshInputFilePath()
-    {
-        return meshInputFilePath;
-    }
-
     public bool IsNavMeshInputTrigerred()
     {
         return navMeshInputTrigerred;

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

@@ -2,13 +2,13 @@
 {
     public class ConvexVolumeToolImpl : ISampleTool
     {
+        private Sample _sample;
         
         public string GetName()
         {
             return "Create Convex Volumes";
         }
 
-        private Sample _sample;
         public void SetSample(Sample sample)
         {
             _sample = sample;