fix - title text

Author: ikpil

src/Box2D.NET.Samples/Graphics/Draw.cs

@@ -2,7 +2,6 @@
 // SPDX-FileCopyrightText: 2025 Ikpil Choi([email protected])
 // SPDX-License-Identifier: MIT
 
-using ImGuiNET;
 using Silk.NET.GLFW;
 using Silk.NET.OpenGL;
 
@@ -13,7 +12,6 @@ public class Draw
 {
     public Glfw glfw;
     public GL gl;
-    public Camera camera;
 
     public Background background;
     public PointRender points;

src/Box2D.NET.Samples/Graphics/Draws.cs

@@ -23,7 +23,6 @@ public static class Draws
     public static Draw CreateDraw(SampleContext context)
     {
         var draw = new Draw();
-        draw.camera = context.camera;
         draw.gl = context.gl;
 
         draw.background = CreateBackground(context.gl);
@@ -129,16 +128,16 @@ public static void DrawPoint(Draw draw, B2Vec2 p, float size, B2HexColor color)
 
 
 
-    public static void FlushDraw(Draw draw)
+    public static void FlushDraw(Draw draw, Camera camera)
     {
         // order matters
-        FlushSolidCircles(draw.gl, ref draw.circles, draw.camera);
-        FlushCapsules(draw.gl, ref draw.capsules, draw.camera);
-        FlushPolygons(draw.gl, ref draw.polygons, draw.camera);
-        FlushCircles(draw.gl, ref draw.hollowCircles, draw.camera);
-        FlushLines(draw.gl, ref draw.lines, draw.camera);
-        FlushPoints(draw.gl, ref draw.points, draw.camera);
-        FlushText(draw.gl, ref draw.font, draw.camera);
+        FlushSolidCircles(draw.gl, ref draw.circles, camera);
+        FlushCapsules(draw.gl, ref draw.capsules, camera);
+        FlushPolygons(draw.gl, ref draw.polygons, camera);
+        FlushCircles(draw.gl, ref draw.hollowCircles, camera);
+        FlushLines(draw.gl, ref draw.lines, camera);
+        FlushPoints(draw.gl, ref draw.points, camera);
+        FlushText(draw.gl, ref draw.font, camera);
         draw.gl.CheckOpenGL();
     }
 }

src/Box2D.NET.Samples/SampleApp.cs

@@ -354,25 +354,22 @@ private void OnWindowRender(double dt)
         ImGui.Begin("Overlay", ImGuiWindowFlags.NoTitleBar | ImGuiWindowFlags.NoInputs | ImGuiWindowFlags.AlwaysAutoResize | ImGuiWindowFlags.NoScrollbar);
         ImGui.End();
 
-        if (_context.showUI)
-        {
-            var title = SampleFactory.Shared.GetTitle(_context.sampleIndex);
-            s_sample.ResetText(title);
-        }
+        s_sample.ResetText();
+        
+        var title = SampleFactory.Shared.GetTitle(_context.sampleIndex);
+        s_sample.DrawColoredTextLine(B2HexColor.b2_colorYellow, title);
+        
+        string buffer = $"{1000.0f * _frameTime:0.0} ms - step {s_sample.m_stepCount} - " +
+                        $"camera ({_context.camera.center.X:G}, {_context.camera.center.Y:G}, {_context.camera.zoom:G})";
+        DrawScreenString(_context.draw, 5.0f, _context.camera.height - 18.0f, B2HexColor.b2_colorSeaGreen, buffer);
 
         s_sample.Draw();
-        FlushDraw(_context.draw);
+        FlushDraw(_context.draw, _context.camera);
 
         UpdateUI();
 
         //ImGui.ShowDemoWindow();
 
-        if (_context.showUI)
-        {
-            string buffer = $"{1000.0f * _frameTime:0.0} ms - step {s_sample.m_stepCount} - " +
-                            $"camera ({_context.camera.center.X:G}, {_context.camera.center.Y:G}, {_context.camera.zoom:G})";
-            DrawScreenString(_context.draw, 5.0f, _context.camera.height - 18.0f, B2HexColor.b2_colorSeaGreen, buffer);
-        }
 
         _imgui.Render();
         //ImGui_ImplOpenGL3_RenderDrawData(ImGui.GetDrawData());

src/Box2D.NET.Samples/SampleContext.cs

@@ -146,9 +146,9 @@ public static SampleContext CreateFor(string sig, Glfw glfw)
         return context;
     }
 
-    public static void DrawBackground(Draw draw)
+    public static void DrawBackground(Draw draw, Camera camera)
     {
-        RenderBackground(draw.glfw, draw.gl, ref draw.background, draw.camera);
+        RenderBackground(draw.glfw, draw.gl, ref draw.background, camera);
     }
 
     public static void DrawPolygonFcn(ReadOnlySpan<B2Vec2> vertices, int vertexCount, B2HexColor color, object context)

src/Box2D.NET.Samples/Samples/Sample.cs

@@ -248,7 +248,7 @@ private static void FinishTask(object taskPtr, object userContext)
         }
     }
 
-    public void ResetText(string title)
+    public void ResetText()
     {
         m_textLine = m_textIncrement;
     }