(svn r18955) -Feature: [NoAI] introduce GetBuildCost functions in several classes to get easier cost estimations before you start building

src/ai/api/ai_road.hpp

@@ -63,6 +63,16 @@ public:
 		ROADVEHTYPE_TRUCK, //!< Build objects useable for trucks and cargo trams
 	};
 
+	/**
+	 * Types of road-related objects in the game.
+	 */
+	enum BuildType {
+		BT_ROAD,       //!< Build a piece of road
+		BT_DEPOT,      //!< Build a road depot
+		BT_BUS_STOP,   //!< Build a bus stop
+		BT_TRUCK_STOP, //!< Build a truck stop
+	};
+
 	/**
 	 * Determines whether a busstop or a truckstop is needed to transport a certain cargo.
 	 * @param cargo_type The cargo to test.
@@ -451,6 +461,15 @@ public:
 	 */
 	static bool RemoveRoadStation(TileIndex tile);
 
+	/**
+	 * Get the baseprice of building a road-related object.
+	 * @param roadtype the roadtype that is build (on)
+	 * @param build_type the type of object to build
+	 * @pre IsRoadTypeAvailable(railtype)
+	 * @return The baseprice of building the given object.
+	 */
+	static Money GetBuildCost(RoadType roadtype, BuildType build_type);
+
 private:
 
 	/**