diff --git a/test/DotRecast.Detour.Crowd.Test/AbstractCrowdTest.cs b/test/DotRecast.Detour.Crowd.Test/AbstractCrowdTest.cs
index 248bd1b..b2f186d 100644
--- a/test/DotRecast.Detour.Crowd.Test/AbstractCrowdTest.cs
+++ b/test/DotRecast.Detour.Crowd.Test/AbstractCrowdTest.cs
@@ -62,7 +62,7 @@ public class AbstractCrowdTest
     [SetUp]
     public void SetUp()
     {
-        nmd = new RecastTestMeshBuilder().GetMeshData();
+        nmd = TestMeshDataFactory.Create();
         navmesh = new DtNavMesh();
         navmesh.Init(nmd, 6, 0);
         query = new DtNavMeshQuery(navmesh);
diff --git a/test/DotRecast.Detour.Crowd.Test/RecastTestMeshBuilder.cs b/test/DotRecast.Detour.Crowd.Test/TestMeshDataFactory.cs
similarity index 53%
rename from test/DotRecast.Detour.Crowd.Test/RecastTestMeshBuilder.cs
rename to test/DotRecast.Detour.Crowd.Test/TestMeshDataFactory.cs
index 39a362a..d186f77 100644
--- a/test/DotRecast.Detour.Crowd.Test/RecastTestMeshBuilder.cs
+++ b/test/DotRecast.Detour.Crowd.Test/TestMeshDataFactory.cs
@@ -23,46 +23,42 @@ using DotRecast.Recast.Geom;
 
 namespace DotRecast.Detour.Crowd.Test;
 
-public class RecastTestMeshBuilder
+public class TestMeshDataFactory
 {
-    private readonly DtMeshData meshData;
-    public const float m_cellSize = 0.3f;
-    public const float m_cellHeight = 0.2f;
-    public const float m_agentHeight = 2.0f;
-    public const float m_agentRadius = 0.6f;
-    public const float m_agentMaxClimb = 0.9f;
-    public const float m_agentMaxSlope = 45.0f;
-    public const int m_regionMinSize = 8;
-    public const int m_regionMergeSize = 20;
-    public const float m_edgeMaxLen = 12.0f;
-    public const float m_edgeMaxError = 1.3f;
-    public const int m_vertsPerPoly = 6;
-    public const float m_detailSampleDist = 6.0f;
-    public const float m_detailSampleMaxError = 1.0f;
+    private const float m_cellSize = 0.3f;
+    private const float m_cellHeight = 0.2f;
+    private const float m_agentHeight = 2.0f;
+    private const float m_agentRadius = 0.6f;
+    private const float m_agentMaxClimb = 0.9f;
+    private const float m_agentMaxSlope = 45.0f;
+    private const int m_regionMinSize = 8;
+    private const int m_regionMergeSize = 20;
+    private const float m_edgeMaxLen = 12.0f;
+    private const float m_edgeMaxError = 1.3f;
+    private const int m_vertsPerPoly = 6;
+    private const float m_detailSampleDist = 6.0f;
+    private const float m_detailSampleMaxError = 1.0f;
 
-    public RecastTestMeshBuilder()
-        : this(SimpleInputGeomProvider.LoadFile("dungeon.obj"),
-            RcPartition.WATERSHED,
-            m_cellSize, m_cellHeight,
-            m_agentMaxSlope, m_agentHeight, m_agentRadius, m_agentMaxClimb,
-            m_regionMinSize, m_regionMergeSize,
-            m_edgeMaxLen, m_edgeMaxError,
-            m_vertsPerPoly,
-            m_detailSampleDist, m_detailSampleMaxError)
+    public static DtMeshData Create()
     {
-    }
+        IInputGeomProvider geom = SimpleInputGeomProvider.LoadFile("dungeon.obj");
+        RcPartition partition = RcPartition.WATERSHED;
+        float cellSize = m_cellSize;
+        float cellHeight = m_cellHeight;
+        float agentMaxSlope = m_agentMaxSlope;
+        float agentHeight = m_agentHeight;
+        float agentRadius = m_agentRadius;
+        float agentMaxClimb = m_agentMaxClimb;
+        int regionMinSize = m_regionMinSize;
+        int regionMergeSize = m_regionMergeSize;
+        float edgeMaxLen = m_edgeMaxLen;
+        float edgeMaxError = m_edgeMaxError;
+        int vertsPerPoly = m_vertsPerPoly;
+        float detailSampleDist = m_detailSampleDist;
+        float detailSampleMaxError = m_detailSampleMaxError;
 
-    public RecastTestMeshBuilder(IInputGeomProvider geom,
-        RcPartition partitionType,
-        float cellSize, float cellHeight,
-        float agentMaxSlope, float agentHeight, float agentRadius, float agentMaxClimb,
-        int regionMinSize, int regionMergeSize,
-        float edgeMaxLen, float edgeMaxError,
-        int vertsPerPoly,
-        float detailSampleDist, float detailSampleMaxError)
-    {
         RcConfig cfg = new RcConfig(
-            partitionType,
+            partition,
             cellSize, cellHeight,
             agentMaxSlope, agentHeight, agentRadius, agentMaxClimb,
             regionMinSize, regionMergeSize,
@@ -74,31 +70,31 @@ public class RecastTestMeshBuilder
         RcBuilderConfig bcfg = new RcBuilderConfig(cfg, geom.GetMeshBoundsMin(), geom.GetMeshBoundsMax());
         RcBuilder rcBuilder = new RcBuilder();
         RcBuilderResult rcResult = rcBuilder.Build(geom, bcfg, false);
-        RcPolyMesh m_pmesh = rcResult.Mesh;
-        for (int i = 0; i < m_pmesh.npolys; ++i)
+        RcPolyMesh pmesh = rcResult.Mesh;
+        for (int i = 0; i < pmesh.npolys; ++i)
         {
-            m_pmesh.flags[i] = 1;
+            pmesh.flags[i] = 1;
         }
 
-        RcPolyMeshDetail m_dmesh = rcResult.MeshDetail;
+        RcPolyMeshDetail dmesh = rcResult.MeshDetail;
         DtNavMeshCreateParams option = new DtNavMeshCreateParams();
-        option.verts = m_pmesh.verts;
-        option.vertCount = m_pmesh.nverts;
-        option.polys = m_pmesh.polys;
-        option.polyAreas = m_pmesh.areas;
-        option.polyFlags = m_pmesh.flags;
-        option.polyCount = m_pmesh.npolys;
-        option.nvp = m_pmesh.nvp;
-        option.detailMeshes = m_dmesh.meshes;
-        option.detailVerts = m_dmesh.verts;
-        option.detailVertsCount = m_dmesh.nverts;
-        option.detailTris = m_dmesh.tris;
-        option.detailTriCount = m_dmesh.ntris;
+        option.verts = pmesh.verts;
+        option.vertCount = pmesh.nverts;
+        option.polys = pmesh.polys;
+        option.polyAreas = pmesh.areas;
+        option.polyFlags = pmesh.flags;
+        option.polyCount = pmesh.npolys;
+        option.nvp = pmesh.nvp;
+        option.detailMeshes = dmesh.meshes;
+        option.detailVerts = dmesh.verts;
+        option.detailVertsCount = dmesh.nverts;
+        option.detailTris = dmesh.tris;
+        option.detailTriCount = dmesh.ntris;
         option.walkableHeight = agentHeight;
         option.walkableRadius = agentRadius;
         option.walkableClimb = agentMaxClimb;
-        option.bmin = m_pmesh.bmin;
-        option.bmax = m_pmesh.bmax;
+        option.bmin = pmesh.bmin;
+        option.bmax = pmesh.bmax;
         option.cs = cellSize;
         option.ch = cellHeight;
         option.buildBvTree = true;
@@ -121,11 +117,8 @@ public class RecastTestMeshBuilder
         option.offMeshConUserID = new int[1];
         option.offMeshConUserID[0] = 0x4567;
         option.offMeshConCount = 1;
-        meshData = DtNavMeshBuilder.CreateNavMeshData(option);
-    }
+        var meshData = DtNavMeshBuilder.CreateNavMeshData(option);
 
-    public DtMeshData GetMeshData()
-    {
         return meshData;
     }
 }
\ No newline at end of file