Added missing methods to XMLController

src/de/tud/kom/p2psim/impl/topology/movement/vehicular/sumo/simulation/controller/xml/XMLSimulationController.java

@@ -364,4 +364,10 @@ public class XMLSimulationController implements VehicleController, SimulationSet
 	public double getVehicleSpeed(String pVehicleID) {
 		return _vehicleDataInformationHandler.getVehiclePositions().get(pVehicleID).getSpeed();
 	}
+
+	@Override
+	public double getVehicleHeading(String pVehicleID) {
+		return _vehicleDataInformationHandler.getVehiclePositions().get(pVehicleID).getHeading();
+	}
+
 }