(svn r15860) -Add: AIRoad::GetRoadVehicleTypeForCargo() to tell whether a certain cargo needs a bus- or a truckstop.

src/ai/api/ai_road.cpp

@@ -5,12 +5,18 @@
 #include "ai_road.hpp"
 #include "ai_map.hpp"
 #include "ai_station.hpp"
+#include "ai_cargo.hpp"
 #include "../../station_map.h"
 #include "../../command_type.h"
 #include "../../settings_type.h"
 #include "../../company_func.h"
 #include "../../script/squirrel_helper_type.hpp"
 
+/* static */ AIRoad::RoadVehicleType AIRoad::GetRoadVehicleTypeForCargo(CargoID cargo_type)
+{
+	return AICargo::HasCargoClass(cargo_type, AICargo::CC_PASSENGERS) ? ROADVEHTYPE_BUS : ROADVEHTYPE_TRUCK;
+}
+
 /* static */ bool AIRoad::IsRoadTile(TileIndex tile)
 {
 	if (!::IsValidTile(tile)) return false;