added b2PairQueryCallback test

Author: ikpil

src/Box2D.NET.Samples/Samples/Worlds/WorkbenchWorld.cs

@@ -0,0 +1,48 @@
+using static Box2D.NET.B2Worlds;
+using static Box2D.NET.B2Types;
+using static Box2D.NET.B2MathFunction;
+using static Box2D.NET.B2Bodies;
+using static Box2D.NET.B2Shapes;
+
+namespace Box2D.NET.Samples.Samples.Worlds;
+
+public class WorkbenchWorld : Sample
+{
+    private static readonly int SampleLargeWorld = SampleFactory.Shared.RegisterSample("World", "Workbench World", Create);
+
+    private static Sample Create(SampleAppContext ctx, Settings settings)
+    {
+        return new WorkbenchWorld(ctx, settings);
+    }
+
+    public WorkbenchWorld(SampleAppContext ctx, Settings settings) : base(ctx, settings)
+    {
+        if (settings.restart == false)
+        {
+            m_context.camera.m_center = new B2Vec2(0.0f, 5.0f);
+            m_context.camera.m_zoom = 25.0f * 0.5f;
+        }
+
+        B2ShapeId shapeIdA = CreateCircle(m_worldId, new B2Vec2(0.0f, 0.0f), 1.0f);
+        B2ShapeId shapeIdB = CreateCircle(m_worldId, new B2Vec2(1.0f, 1.0f), 1.0f);
+    }
+    
+    public static B2ShapeId CreateCircle(B2WorldId worldId, B2Vec2 position, float radius)
+    {
+        B2BodyDef bodyDef = b2DefaultBodyDef();
+        bodyDef.type = B2BodyType.b2_dynamicBody;
+        bodyDef.position = position;
+        bodyDef.gravityScale = 0.0f;
+        var bodyIdA = b2CreateBody(worldId, ref bodyDef);
+
+        B2ShapeDef shapeDef = b2DefaultShapeDef();
+        shapeDef.density = 1.0f;
+        shapeDef.material.friction = 0.5f;
+
+        B2Circle circle = new B2Circle(new B2Vec2(0.0f, 0.0f), radius);
+        B2ShapeId shapeId = b2CreateCircleShape(bodyIdA, ref shapeDef, ref circle);
+        
+        return shapeId;
+    }
+
+}

src/Box2D.NET/B2DistanceJoints.cs

@@ -2,7 +2,6 @@
 // SPDX-FileCopyrightText: 2025 Ikpil Choi([email protected])
 // SPDX-License-Identifier: MIT
 
-using System.Diagnostics;
 using static Box2D.NET.B2Arrays;
 using static Box2D.NET.B2Cores;
 using static Box2D.NET.B2Constants;

test/Box2D.NET.Test/B2BoardPhasesTests.cs

@@ -1,9 +1,11 @@
 using System;
+using Box2D.NET.Test.Helpers;
 using NUnit.Framework;
 using static Box2D.NET.B2BoardPhases;
 using static Box2D.NET.B2Tables;
 using static Box2D.NET.B2Atomics;
 using static Box2D.NET.B2Constants;
+using static Box2D.NET.B2Worlds;
 
 namespace Box2D.NET.Test;
 
@@ -309,4 +311,37 @@ public void Test_B2BroadPhases_b2BroadPhase_EnlargeProxy()
         }
 #endif
     }
+
+    [Test]
+    public void Test_B2BroadPhases_b2BroadPhase_b2PairQueryCallback()
+    {
+        // Arrange
+        using TestWorldHandle worldHandle = TestHelper.CreateWorld();
+        var worldId = worldHandle.Id;
+        var world = b2GetWorldFromId(worldId);
+
+        B2ShapeId shapeIdA = TestHelper.CreateCircle(worldId, new B2Vec2(0.0f, 0.0f), 1.0f);
+        B2ShapeId shapeIdB = TestHelper.CreateCircle(worldId, new B2Vec2(1.0f, 1.0f), 2.0f);
+
+        // QueryContext 셋업
+        B2QueryPairContext queryContext = new B2QueryPairContext();
+        queryContext.world = world;
+        queryContext.queryTreeType = B2BodyType.b2_dynamicBody;
+        queryContext.moveResult = world.broadPhase.moveResults[0];
+        queryContext.moveResult.pairList = null;
+        queryContext.queryProxyKey = 1;
+        queryContext.queryShapeIndex = 1;
+
+        int proxyId = 0;
+        ulong userData = 0; // shape index 0번
+
+        // Act
+        bool result = b2PairQueryCallback(proxyId, userData, ref queryContext);
+
+        // Assert
+        // Assert.That(result, Is.True);
+        // Assert.That(queryContext.moveResult.pairList, Is.Not.Null);
+        // Assert.That(queryContext.moveResult.pairList.shapeIndexA, Is.EqualTo(0));
+        // Assert.That(queryContext.moveResult.pairList.shapeIndexB, Is.EqualTo(1));
+    }
 }

test/Box2D.NET.Test/B2WorldTest.cs

@@ -2,7 +2,6 @@
 // SPDX-FileCopyrightText: 2025 Ikpil Choi([email protected])
 // SPDX-License-Identifier: MIT
 
-using System.Diagnostics;
 using NUnit.Framework;
 using static Box2D.NET.B2Worlds;
 using static Box2D.NET.B2Types;
@@ -15,7 +14,6 @@
 using static Box2D.NET.B2Joints;
 using static Box2D.NET.B2Cores;
 
-
 namespace Box2D.NET.Test;
 
 public class B2WorldTest

test/Box2D.NET.Test/Helpers/TestHelper.cs

@@ -0,0 +1,50 @@
+using static Box2D.NET.B2Worlds;
+using static Box2D.NET.B2Types;
+using static Box2D.NET.B2Bodies;
+using static Box2D.NET.B2Shapes;
+
+namespace Box2D.NET.Test.Helpers;
+
+public static class TestHelper
+{
+    public static TestWorldHandle CreateWorld()
+    {
+        B2WorldDef worldDef = b2DefaultWorldDef();
+        worldDef.workerCount = 1;
+        worldDef.enqueueTask = EnqueueTask;
+        worldDef.finishTask = FinishTask;
+        worldDef.userTaskContext = null;
+        worldDef.enableSleep = true;
+
+        B2WorldId worldId = b2CreateWorld(ref worldDef);
+
+        return new TestWorldHandle(worldId);
+    }
+
+    private static object EnqueueTask(b2TaskCallback task, int itemCount, int minRange, object taskContext, object userContext)
+    {
+        return null;
+    }
+
+    private static void FinishTask(object userTask, object userContext)
+    {
+    }
+
+    public static B2ShapeId CreateCircle(B2WorldId worldId, B2Vec2 position, float radius)
+    {
+        B2BodyDef bodyDef = b2DefaultBodyDef();
+        bodyDef.type = B2BodyType.b2_dynamicBody;
+        bodyDef.position = position;
+        bodyDef.gravityScale = 0.0f;
+        var bodyIdA = b2CreateBody(worldId, ref bodyDef);
+
+        B2ShapeDef shapeDef = b2DefaultShapeDef();
+        shapeDef.density = 1.0f;
+        shapeDef.material.friction = 0.5f;
+
+        B2Circle circle = new B2Circle(new B2Vec2(0.0f, 0.0f), radius);
+        B2ShapeId shapeId = b2CreateCircleShape(bodyIdA, ref shapeDef, ref circle);
+        
+        return shapeId;
+    }
+}

test/Box2D.NET.Test/Helpers/TestWorldHandle.cs

@@ -0,0 +1,25 @@
+using System;
+using static Box2D.NET.B2Worlds;
+using static Box2D.NET.B2Ids;
+
+namespace Box2D.NET.Test.Helpers;
+
+public class TestWorldHandle : IDisposable
+{
+    public B2WorldId Id { get; private set; }
+
+    public TestWorldHandle(B2WorldId worldId)
+    {
+        Id = worldId;
+    }
+
+    public void Dispose()
+    {
+        if (B2_IS_NON_NULL(Id))
+        {
+            b2DestroyWorld(Id);
+            Id = b2_nullWorldId;
+        }
+    }
+
+}