diff --git a/math/distribution/Const.h b/math/distribution/Const.h
new file mode 100644
index 0000000..30bd63a
--- /dev/null
+++ b/math/distribution/Const.h
@@ -0,0 +1,4 @@
+#ifndef CONST_H
+#define CONST_H
+
+#endif // CONST_H
diff --git a/navMesh/NavMeshSettings.h b/navMesh/NavMeshSettings.h
index 1ef3de7..350fcc3 100644
--- a/navMesh/NavMeshSettings.h
+++ b/navMesh/NavMeshSettings.h
@@ -36,7 +36,9 @@ namespace NM {
 		/** algorithm choice */
 		SamplePartitionType partitionType = SamplePartitionType::SAMPLE_PARTITION_WATERSHED;
 
-		const float regionMinSize = 2;//8;	// (isolated) regions smaller than this will not be rendered?!
+		float regionMinSize = 8;	// (isolated) regions smaller than this will not be rendered?!
+
+
 		const float regionMergeSize = 20;	//??
 		const int vertsPerPoly = 3;//6.0f;
 		const float detailSampleDist = 6.0f;
diff --git a/navMesh/meta/NavMeshDijkstra.h b/navMesh/meta/NavMeshDijkstra.h
new file mode 100644
index 0000000..7416bd5
--- /dev/null
+++ b/navMesh/meta/NavMeshDijkstra.h
@@ -0,0 +1,4 @@
+#ifndef NAVMESHDIJKSTRA_H
+#define NAVMESHDIJKSTRA_H
+
+#endif // NAVMESHDIJKSTRA_H
diff --git a/navMesh/walk/NavMeshWalkSemiDirected.h b/navMesh/walk/NavMeshWalkSemiDirected.h
new file mode 100644
index 0000000..494545f
--- /dev/null
+++ b/navMesh/walk/NavMeshWalkSemiDirected.h
@@ -0,0 +1,4 @@
+#ifndef NAVMESHWALKSEMIDIRECTED_H
+#define NAVMESHWALKSEMIDIRECTED_H
+
+#endif // NAVMESHWALKSEMIDIRECTED_H
diff --git a/tests/navMesh/TestNavMeshDijkstra.cpp b/tests/navMesh/TestNavMeshDijkstra.cpp
new file mode 100644
index 0000000..e69de29