4 files changed, 11 insertions, 7 deletions
diff --git a/src/pathfinder/yapf/nodelist.hpp b/src/pathfinder/yapf/nodelist.hpp
index 6a197f98d..b81fd65e0 100644
--- a/src/pathfinder/yapf/nodelist.hpp
+++ b/src/pathfinder/yapf/nodelist.hpp
@@ -151,9 +151,12 @@ public:
 		return item;
 	}
 
+	/** The number of items. */
 	FORCEINLINE int TotalCount() {return m_arr.Length();}
+	/** Get a particular item. */
 	FORCEINLINE Titem_& ItemAt(int idx) {return m_arr[idx];}
 
+	/** Helper for creating output of this array. */
 	template <class D> void Dump(D &dmp) const
 	{
 		dmp.WriteStructT("m_arr", &m_arr);
diff --git a/src/pathfinder/yapf/yapf.h b/src/pathfinder/yapf/yapf.h
index 37b3bf41e..b02d9d0ee 100644
--- a/src/pathfinder/yapf/yapf.h
+++ b/src/pathfinder/yapf/yapf.h
@@ -65,7 +65,7 @@ FindDepotData YapfRoadVehicleFindNearestDepot(const RoadVehicle *v, int max_pena
 /**
  * Used when user sends train to the nearest depot or if train needs servicing using YAPF.
  * @param v            train that needs to go to some depot
- * @param max_penalty  max distance (int pathfinder penalty) from the current train position
+ * @param max_distance max distance (int pathfinder penalty) from the current train position
  *                     (used also as optimization - the pathfinder can stop path finding if max_penalty
  *                     was reached and no depot was seen)
  * @return             the data about the depot
diff --git a/src/pathfinder/yapf/yapf_costbase.hpp b/src/pathfinder/yapf/yapf_costbase.hpp
index 29d6c85c2..057c0ae5b 100644
--- a/src/pathfinder/yapf/yapf_costbase.hpp
+++ b/src/pathfinder/yapf/yapf_costbase.hpp
@@ -12,7 +12,14 @@
 #ifndef YAPF_COSTBASE_HPP
 #define YAPF_COSTBASE_HPP
 
+/** Base implementation for cost accounting. */
 struct CYapfCostBase {
+	/**
+	 * Does the given track direction on the given tile yeild an uphill penalty?
+	 * @param tile The tile to check.
+	 * @param td   The track direction to check.
+	 * @return True if there's a slope, otherwise false.
+	 */
 	FORCEINLINE static bool stSlopeCost(TileIndex tile, Trackdir td)
 	{
 		if (IsDiagonalTrackdir(td)) {
@@ -34,9 +41,4 @@ struct CYapfCostBase {
 	}
 };
 
-struct CostRailSettings {
-	/* look-ahead signal penalty */
-};
-
-
 #endif /* YAPF_COSTBASE_HPP */
diff --git a/src/pathfinder/yapf/yapf_costrail.hpp b/src/pathfinder/yapf/yapf_costrail.hpp
index 0cee47699..f1b6565f2 100644
--- a/src/pathfinder/yapf/yapf_costrail.hpp
+++ b/src/pathfinder/yapf/yapf_costrail.hpp
@@ -17,7 +17,6 @@
 template <class Types>
 class CYapfCostRailT
 	: public CYapfCostBase
-	, public CostRailSettings
 {
 public:
 	typedef typename Types::Tpf Tpf;              ///< the pathfinder class (derived from THIS class)