diff --git a/src/DotRecast.Detour.TileCache/DtCompressedTile.cs b/src/DotRecast.Detour.TileCache/DtCompressedTile.cs
index fed69e0..4b059d3 100644
--- a/src/DotRecast.Detour.TileCache/DtCompressedTile.cs
+++ b/src/DotRecast.Detour.TileCache/DtCompressedTile.cs
@@ -23,9 +23,7 @@ namespace DotRecast.Detour.TileCache
     public class DtCompressedTile
     {
         public readonly int index;
-        public int salt;
-
-        /// < Counter describing modifications to the tile.
+        public int salt; // Counter describing modifications to the tile.
         public DtTileCacheLayerHeader header;
 
         public byte[] data;
diff --git a/src/DotRecast.Detour.TileCache/DtCompressedTileFlags.cs b/src/DotRecast.Detour.TileCache/DtCompressedTileFlags.cs
new file mode 100644
index 0000000..a51dc6a
--- /dev/null
+++ b/src/DotRecast.Detour.TileCache/DtCompressedTileFlags.cs
@@ -0,0 +1,8 @@
+namespace DotRecast.Detour.TileCache
+{
+    /// Flags for addTile
+    public class DtCompressedTileFlags
+    {
+        public const int DT_COMPRESSEDTILE_FREE_DATA = 0x01; //< Navmesh owns the tile memory and should free it. In C#, it is not used.
+    }
+}
\ No newline at end of file
diff --git a/src/DotRecast.Detour.TileCache/DtTileCacheObstacle.cs b/src/DotRecast.Detour.TileCache/DtTileCacheObstacle.cs
index b236c8b..3942086 100644
--- a/src/DotRecast.Detour.TileCache/DtTileCacheObstacle.cs
+++ b/src/DotRecast.Detour.TileCache/DtTileCacheObstacle.cs
@@ -34,6 +34,7 @@ namespace DotRecast.Detour.TileCache
         public RcVec3f center = new RcVec3f();
         public RcVec3f extents = new RcVec3f();
         public readonly float[] rotAux = new float[2]; // { Cos(0.5f*angle)*Sin(-0.5f*angle); Cos(0.5f*angle)*Cos(0.5f*angle) - 0.5 }
+        
         public List<long> touched = new List<long>();
         public readonly List<long> pending = new List<long>();
         public int salt;