Set fixed seed to sumo to ensure reproducability

src/de/tud/kom/p2psim/impl/topology/movement/vehicular/sumo/simulation/controller/traci/TraciSimulationController.java

@@ -12,7 +12,9 @@ import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
+import java.util.Random;
 
+import de.tudarmstadt.maki.simonstrator.api.Randoms;
 import de.tudarmstadt.maki.simonstrator.api.component.vehicular.api.EdgeController;
 import de.tudarmstadt.maki.simonstrator.api.component.vehicular.api.SimulationSetupExtractor;
 import de.tudarmstadt.maki.simonstrator.api.component.vehicular.api.VehicleController;
@@ -95,7 +97,11 @@ public class TraciSimulationController implements VehicleController, SimulationS
 	@Override
 	public synchronized void init() {
 		if (!_initalized) {
-			_connection = new SumoTraciConnection(_sumoExe, _configFile);
+			Random random = Randoms.getRandom("SUMO");
+
+			// This will only work with the updated version of the TraaS API for sumo
+			// It is available for download at https://dev.kom.e-technik.tu-darmstadt.de/gitlab/tobiasm/TraaS.git
+			_connection = new SumoTraciConnection(_sumoExe, _configFile, random.nextInt());
 
 			try {
 				_connection.runServer();