diff --git a/src/DotRecast.Recast/Recast.cs b/src/DotRecast.Recast/Recast.cs
index 8b165af..fd3ab4d 100644
--- a/src/DotRecast.Recast/Recast.cs
+++ b/src/DotRecast.Recast/Recast.cs
@@ -53,12 +53,11 @@ namespace DotRecast.Recast
         }
 
 
-        public static int[] CalcTileCount(Vector3f bmin, Vector3f bmax, float cs, int tileSizeX, int tileSizeZ)
+        public static void CalcTileCount(Vector3f bmin, Vector3f bmax, float cs, int tileSizeX, int tileSizeZ, out int tw, out int td)
         {
             CalcGridSize(bmin, bmax, cs, out var gw, out var gd);
-            int tw = (gw + tileSizeX - 1) / tileSizeX;
-            int td = (gd + tileSizeZ - 1) / tileSizeZ;
-            return new int[] { tw, td };
+            tw = (gw + tileSizeX - 1) / tileSizeX;
+            td = (gd + tileSizeZ - 1) / tileSizeZ;
         }
 
         /// @par
diff --git a/src/DotRecast.Recast/RecastBuilder.cs b/src/DotRecast.Recast/RecastBuilder.cs
index a278541..39e29bd 100644
--- a/src/DotRecast.Recast/RecastBuilder.cs
+++ b/src/DotRecast.Recast/RecastBuilder.cs
@@ -45,9 +45,7 @@ namespace DotRecast.Recast
         {
             Vector3f bmin = geom.GetMeshBoundsMin();
             Vector3f bmax = geom.GetMeshBoundsMax();
-            int[] twh = Recast.CalcTileCount(bmin, bmax, cfg.cs, cfg.tileSizeX, cfg.tileSizeZ);
-            int tw = twh[0];
-            int th = twh[1];
+            Recast.CalcTileCount(bmin, bmax, cfg.cs, cfg.tileSizeX, cfg.tileSizeZ, out var tw, out var th);
             List<RecastBuilderResult> results = new List<RecastBuilderResult>();
             if (null != taskFactory)
             {
@@ -66,9 +64,7 @@ namespace DotRecast.Recast
         {
             Vector3f bmin = geom.GetMeshBoundsMin();
             Vector3f bmax = geom.GetMeshBoundsMax();
-            int[] twh = Recast.CalcTileCount(bmin, bmax, cfg.cs, cfg.tileSizeX, cfg.tileSizeZ);
-            int tw = twh[0];
-            int th = twh[1];
+            Recast.CalcTileCount(bmin, bmax, cfg.cs, cfg.tileSizeX, cfg.tileSizeZ, out var tw, out var th);
             Task task;
             if (1 < threads)
             {
diff --git a/test/DotRecast.Detour.Test/Io/MeshSetReaderWriterTest.cs b/test/DotRecast.Detour.Test/Io/MeshSetReaderWriterTest.cs
index 9eb108e..c4717a4 100644
--- a/test/DotRecast.Detour.Test/Io/MeshSetReaderWriterTest.cs
+++ b/test/DotRecast.Detour.Test/Io/MeshSetReaderWriterTest.cs
@@ -69,9 +69,7 @@ public class MeshSetReaderWriterTest
 
         Vector3f bmin = geom.GetMeshBoundsMin();
         Vector3f bmax = geom.GetMeshBoundsMax();
-        int[] twh = Recast.Recast.CalcTileCount(bmin, bmax, m_cellSize, m_tileSize, m_tileSize);
-        int tw = twh[0];
-        int th = twh[1];
+        Recast.Recast.CalcTileCount(bmin, bmax, m_cellSize, m_tileSize, m_tileSize, out var tw, out var th);
         for (int y = 0; y < th; ++y)
         {
             for (int x = 0; x < tw; ++x)
@@ -119,4 +117,4 @@ public class MeshSetReaderWriterTest
         Assert.That(tiles[0].data.polys.Length, Is.EqualTo(5));
         Assert.That(tiles[0].data.verts.Length, Is.EqualTo(17 * 3));
     }
-}
+}
\ No newline at end of file
diff --git a/test/DotRecast.Detour.TileCache.Test/AbstractTileCacheTest.cs b/test/DotRecast.Detour.TileCache.Test/AbstractTileCacheTest.cs
index eea4abe..18b92c5 100644
--- a/test/DotRecast.Detour.TileCache.Test/AbstractTileCacheTest.cs
+++ b/test/DotRecast.Detour.TileCache.Test/AbstractTileCacheTest.cs
@@ -53,7 +53,7 @@ public class AbstractTileCacheTest
     public TileCache GetTileCache(IInputGeomProvider geom, RcByteOrder order, bool cCompatibility)
     {
         TileCacheParams option = new TileCacheParams();
-        int[] twh = Recast.Recast.CalcTileCount(geom.GetMeshBoundsMin(), geom.GetMeshBoundsMax(), m_cellSize, m_tileSize, m_tileSize);
+        Recast.Recast.CalcTileCount(geom.GetMeshBoundsMin(), geom.GetMeshBoundsMax(), m_cellSize, m_tileSize, m_tileSize, out var tw, out var th);
         option.ch = m_cellHeight;
         option.cs = m_cellSize;
         option.orig = geom.GetMeshBoundsMin();
@@ -63,7 +63,7 @@ public class AbstractTileCacheTest
         option.walkableRadius = m_agentRadius;
         option.walkableClimb = m_agentMaxClimb;
         option.maxSimplificationError = m_edgeMaxError;
-        option.maxTiles = twh[0] * twh[1] * EXPECTED_LAYERS_PER_TILE;
+        option.maxTiles = tw * th * EXPECTED_LAYERS_PER_TILE;
         option.maxObstacles = 128;
         NavMeshParams navMeshParams = new NavMeshParams();
         navMeshParams.orig = geom.GetMeshBoundsMin();
@@ -76,4 +76,4 @@ public class AbstractTileCacheTest
             TileCacheCompressorFactory.Get(cCompatibility), new TestTileCacheMeshProcess());
         return tc;
     }
-}
+}
\ No newline at end of file
diff --git a/test/DotRecast.Detour.TileCache.Test/TestTileLayerBuilder.cs b/test/DotRecast.Detour.TileCache.Test/TestTileLayerBuilder.cs
index f95f768..e7355e1 100644
--- a/test/DotRecast.Detour.TileCache.Test/TestTileLayerBuilder.cs
+++ b/test/DotRecast.Detour.TileCache.Test/TestTileLayerBuilder.cs
@@ -57,9 +57,7 @@ public class TestTileLayerBuilder : AbstractTileLayersBuilder
             true, m_detailSampleDist, m_detailSampleMaxError, SampleAreaModifications.SAMPLE_AREAMOD_GROUND);
         Vector3f bmin = geom.GetMeshBoundsMin();
         Vector3f bmax = geom.GetMeshBoundsMax();
-        int[] twh = Recast.Recast.CalcTileCount(bmin, bmax, m_cellSize, m_tileSize, m_tileSize);
-        tw = twh[0];
-        th = twh[1];
+        Recast.Recast.CalcTileCount(bmin, bmax, m_cellSize, m_tileSize, m_tileSize, out tw, out th);
     }
 
     public List<byte[]> Build(RcByteOrder order, bool cCompatibility, int threads)
@@ -125,4 +123,4 @@ public class TestTileLayerBuilder : AbstractTileLayersBuilder
         HeightfieldLayerSet lset = rcBuilder.BuildLayers(geom, cfg);
         return lset;
     }
-}
+}
\ No newline at end of file