Project Progress

assignments/src/MV3500Cohort2020JulySeptember/homework4/White/test/PDUReciever.java

+package MV3500Cohort2020JulySeptember.homework4.White.test;
+
+import MV3500Cohort2020JulySeptember.homework4.White.working.*;
+import java.io.*;
+import java.net.*;
+import java.util.*;
+
+import edu.nps.moves.dis7.pdus.*;
+import edu.nps.moves.dis7.utilities.*;
+
+/**
+ * Receives PDUs from GermanyEspduReceiverEspduVPNSender in IEEE DIS format.
+ *
+ * @date 09/05/2020
+ * @author Bernd/Stefan
+ * @version 0.1
+ */
+public class PDUReciever {
+
+    /**
+     * Max size of a PDU in binary format that we can receive. This is actually
+     * somewhat outdated--PDUs can be larger--but this is a reasonable starting
+     * point.
+     */
+    public static final int MAX_PDU_SIZE = 8192;
+
+    /**
+     * Default port used, matches Wireshark DIS capture default
+     */
+    public static final int DEFAULT_PORT = 2317;
+    public static final int SECOND_PORT = 3000;
+    public static final int THIRD_PORT = 2318;
+    
+    
+    /**
+     * Output prefix to identify this class
+     */
+    private final static String TRACE_PREFIX = "[" + PDUReciever.class.getName() + "] ";
+
+    public static void main(String args[]) {
+        System.out.println(TRACE_PREFIX + "started...");
+
+        MulticastSocket socket1;
+        MulticastSocket socket2;
+        MulticastSocket socket3;
+        DatagramPacket packet;
+        DatagramPacket packet2;
+        DatagramPacket packet3;
+        PduFactory pduFactory = new PduFactory();
+        ArrayList<EntityID> knownEntities = new ArrayList<EntityID>();
+        int pduCount = 0;
+
+        try {
+            // Specify the socket to receive data
+            socket1 = new MulticastSocket(DEFAULT_PORT);
+            socket2 = new MulticastSocket(SECOND_PORT);
+            socket3 = new MulticastSocket(THIRD_PORT);
+            
+            System.out.println(TRACE_PREFIX + "listening for PDU packets on port " + DEFAULT_PORT );//+ " " + SECOND_PORT + " " + THIRD_PORT);
+            System.out.println("====================================================");
+
+            while (true) // Loop infinitely, receiving datagrams
+            {
+                byte buffer[] = new byte[MAX_PDU_SIZE];
+                packet = new DatagramPacket(buffer, buffer.length);
+
+                socket1.receive(packet);
+                
+                
+                
+                List<Pdu> pduBundle = pduFactory.getPdusFromBundle(packet.getData(), packet.getLength());
+                if (pduBundle.size() > 1) { // should be 1 for this project
+                    System.out.println("Bundle size is " + pduBundle.size());
+                }
+
+                // end iterator loop through PDU bundle
+                for (Pdu aPdu : pduBundle) {
+                    pduCount++;
+                    String receiptMessage = String.format("%3s", pduCount) // right justify, 3 characters
+                            + ". received PDU type " + aPdu.getPduType().getValue() + "=" + aPdu.getPduType().name() + " " + aPdu.getClass().getName() + "  from " + packet.getAddress();
+                    if (aPdu instanceof EntityStatePdu) {
+                        System.out.println(receiptMessage);
+                        EntityID entityID = ((EntityStatePdu) aPdu).getEntityID();
+                        Vector3Double position = ((EntityStatePdu) aPdu).getEntityLocation();
+                        System.out.println("     entityID triplet: [" + entityID.getSiteID() + ", " + entityID.getApplicationID() + ", " + entityID.getEntityID() + "] ");
+                        if (!knownEntities.contains(entityID)){
+                            knownEntities.add(entityID);
+                            EntityType entityType = ((EntityStatePdu) aPdu).getEntityType();
+                            System.out.println("     New Entity: " +entityType.getEntityKind() + " "+ entityType.getDomain() + " "+ entityType.getCountry() + " "+  entityType.getCategory() + " "+ entityType.getSubCategory() + " "+  entityType.getSpecific() );
+                        }
+                        System.out.println("     Location in DIS coordinates:        [" + position.getX() + ", " + position.getY() + ", " + position.getZ() + "]");
+
+                    }
+                    else if (aPdu instanceof FirePdu){
+                        System.out.println(receiptMessage);
+                        EntityID firingEntityID = ((FirePdu) aPdu).getFiringEntityID();
+                        EntityID targetEntityID = ((FirePdu) aPdu).getTargetEntityID();
+                        MunitionDescriptor munitionDescriptor = ((FirePdu) aPdu).getDescriptor();
+                        System.out.println("     firingEntityID triplet: [" + firingEntityID.getSiteID() + ", " + firingEntityID.getApplicationID() + ", " + firingEntityID.getEntityID() + "] ");
+                        System.out.println("     targetEntityID triplet: [" + targetEntityID.getSiteID() + ", " + targetEntityID.getApplicationID() + ", " + targetEntityID.getEntityID() + "] ");
+                        System.out.println("     Munition Information:   [" + munitionDescriptor.getMunitionType().getDomain() + "."+munitionDescriptor.getMunitionType().getCountry()   + "." + munitionDescriptor.getMunitionType().getCategory() + "."+ munitionDescriptor.getMunitionType().getSubCategory() + "." + munitionDescriptor.getMunitionType().getSpecific() + "]");
+                    }
+                    else if (aPdu instanceof CommentReliablePdu){
+                        System.out.println(receiptMessage);
+                       ArrayList<VariableDatum> payloadList = (ArrayList)((CommentReliablePdu) aPdu).getVariableDatumRecords();
+                        if (!payloadList.isEmpty())
+                            System.out.print  ("     messages: ");
+                        for (VariableDatum variableDatum : payloadList)
+                        {
+                            String nextComment = new String(variableDatum.getVariableDatumValue()); // convert byte[] to String
+                            System.out.print  (" \"" + nextComment + "\"");
+                            System.out.println();
+                        }//
+                    }
+                    else if (aPdu instanceof ResupplyOfferPdu){
+                            System.out.println(receiptMessage);
+                            EntityID receiverID = ((ResupplyOfferPdu) aPdu).getReceivingEntityID();
+                            EntityID supplierID = ((ResupplyOfferPdu) aPdu).getSupplyingEntityID();
+                            List<SupplyQuantity> supplyList = ((ResupplyOfferPdu) aPdu).getSupplies();
+                            System.out.println("     Resupply Offer from Entity [" + supplierID.getSiteID() + ", "+ supplierID.getApplicationID() + ", " + supplierID.getEntityID() + "] to resupply Entity ["+ receiverID.getSiteID() + ", "+ receiverID.getApplicationID() + ", " + receiverID.getEntityID() + "]" );
+                            for (int i = 0; i < supplyList.size(); i++){
+                            SupplyQuantity supplyQ = supplyList.get(i);
+                            EntityType entityType = supplyQ.getSupplyType();
+                            float supplyQuantity = supplyQ.getQuantity();
+                            System.out.println("     Supplies Offered:   [Quantity: " + supplyQuantity + ",   Type: " +entityType.getEntityKind() + " "+ entityType.getDomain() + " "+ entityType.getCountry() + " "+  entityType.getCategory() + " "+ entityType.getSubCategory() + " "+  entityType.getSpecific() + " ]");
+                            
+                            }
+                    }
+                    
+                     //OTHER PDU TYPES
+                    else {
+                        System.out.println(receiptMessage);
+                    }
+                } // end of bundle loop
+                
+            } // end of while loop
+        } // end try block // end try block // end try block // end try block
+        catch (IOException ioe) {
+            System.out.println(TRACE_PREFIX + "Problem with input/output, see exception trace:");
+            System.out.println(ioe);
+        }
+        System.out.println(TRACE_PREFIX + "complete.");
+    } // end main
+} // end class

assignments/src/MV3500Cohort2020JulySeptember/homework4/White/test/WhiteSimulation.java

+/**
+ * Copyright (c) 2008-2020, MOVES Institute, Naval Postgraduate School (NPS). All rights reserved.
+ * This work is provided under a BSD open-source license, see project license.html and license.txt
+ */
+package MV3500Cohort2020JulySeptember.homework4.White.test;
+
+import MV3500Cohort2020JulySeptember.homework4.White.working.*;
+import MV3500Cohort2020JulySeptember.homework4.White.*;
+import edu.nps.moves.dis7.enumerations.*;
+import edu.nps.moves.dis7.pdus.*;
+import edu.nps.moves.dis7.utilities.*;
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.InetAddress;
+import java.net.MulticastSocket;
+import java.net.UnknownHostException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+public class WhiteSimulation
+{
+    // class variables
+    PduFactory pduFactory = new PduFactory();
+    DisThreadedNetworkInterface disNetworkInterface;
+    DisThreadedNetworkInterface.PduListener pduListener;
+    Pdu receivedPdu;
+    
+    private String networkAddress = "10.1.105.7";
+    private int    networkPort    = 2317;
+    
+    /**
+     * Constructor design goal: additional built-in initialization conveniences can go here
+     * to keep student efforts focused on the runSimulation() method.
+     */
+    public WhiteSimulation()
+    {
+        // Under consideration.  Constructor is not currently needed.
+    }
+    
+    /**
+     * Utility Constructor
+     * @param address network address to use
+     * @param port corresponding network port to use
+     */
+    public WhiteSimulation(String address, int port)
+    {
+        setNetworkAddress(address);
+        
+        setNetworkPort(port);
+    }
+
+    /**
+     * @return the networkAddress
+     */
+    public String getNetworkAddress()
+    {
+        return networkAddress;
+    }
+
+    /**
+     * @param networkAddress the networkAddress to set
+     */
+    public final void setNetworkAddress(String networkAddress)
+    {
+        this.networkAddress = networkAddress;
+    }
+
+    /**
+     * @return the networkPort
+     */
+    public int getNetworkPort()
+    {
+        return networkPort;
+    }
+
+    /**
+     * @param networkPort the networkPort to set
+     */
+    public final void setNetworkPort(int networkPort)
+    {
+        this.networkPort = networkPort;
+    }
+
+    /**
+     * Initialize network interface, choosing best available network interface
+     */
+    public void setUpNetworkInterface()
+    {
+        disNetworkInterface = new DisThreadedNetworkInterface(getNetworkAddress(), getNetworkPort());
+        
+        System.out.println("Network confirmation: address=" + disNetworkInterface.getMcastGroup() + " port=" + disNetworkInterface.getDisPort());
+        pduListener = new DisThreadedNetworkInterface.PduListener()
+        {
+            /** Callback handler for listener */
+            @Override
+            public void incomingPdu(Pdu newPdu)
+            {
+                receivedPdu = newPdu;
+            }
+        };
+        disNetworkInterface.addListener(pduListener);
+    }
+
+    /** All done, release network resources */
+    public void tearDownNetworkInterface()
+    {
+        disNetworkInterface.removeListener(pduListener);
+        disNetworkInterface.kill();
+        disNetworkInterface = null;
+    }
+
+    /** 
+     * Send a single Protocol Data Unit (PDU) of any type
+     * @param pdu the pdu to send
+     */
+    private void sendSinglePdu(Pdu pdu)
+    {
+        try
+        {
+            disNetworkInterface.send(pdu);
+            Thread.sleep(100); // TODO consider refactoring the wait logic and moving externally
+        } 
+        catch (InterruptedException ex)
+        {
+            System.err.println(this.getClass().getName() + " Error sending PDU: " + ex.getLocalizedMessage());
+            System.exit(1);
+        }
+    }
+
+    /**
+     * Send EntityState, Fire, Comment PDUs
+     * @see <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/arguments.html">Passing Information to a Method or a Constructor</a> Arbitrary Number of Arguments
+     * @param entityStatePdu the ESPDU to send, if any
+     * @param firePdu        the FirePDU to send, if any
+     * @param commentType    enumeration value describing the narrative comment
+     * @param comments       String array of narrative comments
+     */
+    public void sendAllPdus(EntityStatePdu entityStatePdu,
+                               FirePdu firePdu,
+                               VariableRecordType commentType,
+                               // vararg... variable length string
+                               String... comments)
+    {
+        if (entityStatePdu != null)
+            sendPDU(entityStatePdu);
+            
+        if (firePdu != null)
+            sendPDU(firePdu); // bang
+        
+        if ((comments != null) && (comments.length > 0))
+        {
+            ArrayList<String> newCommentsList = new ArrayList<>();
+            for (int i = 0; i < comments.length; i++)
+            {
+                if (!comments[i].isEmpty())
+                     newCommentsList.add(comments[i]); // OK found something to send
+            }
+            if (!newCommentsList.isEmpty())
+            {
+                if (commentType == null)
+                    commentType = VariableRecordType.OTHER;
+                CommentPdu commentPdu = pduFactory.makeCommentPdu(commentType, newCommentsList.toArray(new String[0])); // comments);
+                sendPDU(commentPdu);
+            }
+        }
+    }
+  
+    /**
+     * Main method is first executed when a program instance is loaded.
+     * @see <a href="https://docs.oracle.com/javase/tutorial/getStarted/application/index.html">Java Tutorials: A Closer Look at the "Hello World!" Application</a>
+     * @param args command-line arguments are an array of optional String parameters that are passed from execution environment during invocation
+     */
+    public static void main(String[] args)
+    {
+        WhiteSimulation thisProgram = new WhiteSimulation(); // creates instance
+        
+        // initial execution: can handle args array of initialization arguments here
+        if (args.length == 2)
+        {
+            if ((args[0] != null) && !args[0].isEmpty())
+                thisProgram.setNetworkAddress(args[0]);
+            
+            if ((args[1] != null) && !args[1].isEmpty())
+                thisProgram.setNetworkPort(Integer.parseInt(args[1]));
+        }
+        else if (args.length != 0)
+        {
+            System.err.println("Usage: " + thisProgram.getClass().getName() + " [address port]");
+            System.exit(-1);
+        }
+        // OK here we go...
+
+        //thisProgram.setUpNetworkInterface();
+
+        thisProgram.runSimulation (); // customization code goes in there
+
+        //thisProgram.tearDownNetworkInterface();
+    }
+    
+    /**
+     * Programmer-modifiable method for defining and running a new simulation of interest.
+     * Support include DIS EntityStatePdu, FirePdu and CommentPdu all available for 
+     * modification and sending in a simulation loop.
+     */
+    @SuppressWarnings("SleepWhileInLoop")
+    public void runSimulation ()
+    {
+      try
+      {
+        final double LOOP_DURATION_SECONDS  =  1.0; // seconds
+        final int    MAX_LOOP_COUNT = 10;
+              int    loopCount = 0;
+        VariableRecordType narrativeType = VariableRecordType.OTHER; // of potential use
+        boolean simulationComplete = false; // sentinel variable as termination condition
+        boolean fireBool = false;
+        boolean destBool = false;
+        // TODO reset clock to zero each time for consistent outputs.
+        
+        // your model setup: who's who in this zoo?
+        // create PDU objects and set their values
+        
+         Vector3Double eloc3 = new Vector3Double();
+         double[] loc3 = CoordinateConversions.getXYZfromLatLonDegrees(36.600757, -121.869309, 0 );//NPS Corner by lake
+        
+        EntityID       entityID_1    = new EntityID();
+        entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3); // made-up example ID 
+        
+
+        
+        EntityStatePdu entityStatePdu = pduFactory.makeEntityStatePdu();
+        entityStatePdu.setEntityID(entityID_1);
+        
+        
+        
+                                EntityID lavID = new EntityID();
+                                lavID.setSiteID(1);
+                                lavID.setApplicationID(13);
+                                lavID.setEntityID(25);
+                                entityStatePdu.setEntityID(lavID);
+                                EntityType lavType = new EntityType(); //1.1.225.2.41.3 Platform,Ground,USA,ArmoredFightingVehicle,LAV,LAV25A2
+                                lavType.setEntityKind(EntityKind.PLATFORM);
+                                lavType.setDomain(Domain.inst(PlatformDomain.LAND));
+                                lavType.setCountry(Country.UNITED_STATES_OF_AMERICA_USA);
+                                lavType.setCategory(2);
+                                lavType.setSubCategory(41);
+                                lavType.setSpecific(3);
+                                entityStatePdu.setEntityType(lavType);
+                                
+                                Vector3Double eloc2 = new Vector3Double();
+                                double[] loc2 = CoordinateConversions.getXYZfromLatLonDegrees(36.599831, -121.878842, 0); //sloat delmonte intersection
+                                eloc2.setX(loc2[0]);
+                                eloc2.setY(loc2[1]);
+                                eloc2.setZ(loc2[2]);
+                                entityStatePdu.setEntityLocation(eloc2);
+                                EulerAngles orient2 = new EulerAngles();
+                                orient2.setPhi((float) 0.0);
+                                orient2.setPsi((float) 0.0);
+                                orient2.setTheta((float) 0.0);                                
+                                entityStatePdu.setEntityOrientation(orient2);
+        
+                                EntityStatePdu entityStatePdu2 = pduFactory.makeEntityStatePdu();
+        
+                                
+                                EntityID bmpID = new EntityID();
+                                bmpID.setSiteID(1);
+                                bmpID.setApplicationID(13);
+                                bmpID.setEntityID(2);
+                                entityStatePdu2.setEntityID(bmpID);
+                                EntityType bmpType = new EntityType(); //1.1.222.2.2.1 Platform,Ground,Russia,ArmoredFightingVehicle,BMP2,BMP2
+                                bmpType.setEntityKind(EntityKind.PLATFORM);
+                                bmpType.setDomain(Domain.inst(PlatformDomain.LAND));
+                                bmpType.setCountry(Country.RUSSIA);
+                                bmpType.setCategory(2);
+                                bmpType.setSubCategory(41);
+                                bmpType.setSpecific(3);
+                                entityStatePdu2.setEntityType(bmpType);
+                                Vector3Double eloc1 = new Vector3Double();
+                                double[] loc1 = CoordinateConversions.getXYZfromLatLonDegrees(36.594116, -121.877463, 0); //NPS Main Gate
+                                eloc1.setX(loc1[0]);
+                                eloc1.setY(loc1[1]);
+                                eloc1.setZ(loc1[2]);
+                                
+                                entityStatePdu2.setEntityLocation(eloc1);
+                                EulerAngles orient1 = new EulerAngles();
+                                orient1.setPhi((float) 3.1415);
+                                orient1.setPsi((float) 0.0);
+                                orient1.setTheta((float) 0.0);                                
+                                entityStatePdu2.setEntityOrientation(orient1);
+                                   
+                                int BMPHitsReceived = 0;
+                                
+                                System.out.println(eloc2.toString());
+                                System.out.println(eloc1.toString());
+                                
+                                //FirePdu firePduNull = new FirePdu();
+                                 FirePdu               firePdu = pduFactory.makeFirePdu();
+        EntityID fireID = new EntityID();
+                                fireID.setSiteID(1);
+                                fireID.setApplicationID(13);
+                                fireID.setEntityID(25);
+                                EntityID targetID = new EntityID();
+                                targetID.setSiteID(1);
+                                targetID.setApplicationID(13);
+                                targetID.setEntityID(2);
+                                
+                                firePdu.setFiringEntityID(fireID);
+                                firePdu.setTargetEntityID(targetID);
+                                
+                                EntityType HEType = new EntityType(); //2.9.225.2.2.1
+                                HEType.setEntityKind(EntityKind.MUNITION);
+                                HEType.setDomain(Domain.inst(PlatformDomain.AIR));
+                                HEType.setCountry(Country.UNITED_STATES_OF_AMERICA_USA);
+                                HEType.setCategory(2);
+                                HEType.setSubCategory(2);
+                                HEType.setSpecific(1);
+                                MunitionDescriptor HEIT = new MunitionDescriptor();
+                                HEIT.setMunitionType(HEType);
+                                HEIT.setQuantity(3);
+                                HEIT.setFuse(MunitionDescriptorFuse.CONTACT_GRAZE);
+                                HEIT.setRate(200);
+                                
+                                firePdu.setDescriptor(HEIT);
+                                EntityID HEID = new EntityID();
+                                HEID.setEntityID(1);
+                                firePdu.setMunitionExpendibleID(HEID);
+                                
+                            //
+        
+                                
+                                CommentReliablePdu bmpDestroyedComment = pduFactory.makeCommentReliablePdu("BMP2 DESTROYED BY LAV25-A2 AFTER TWO BURSTS OF 25mm HEI-T ON TARGET");
+                                CommentReliablePdu bmpSightedComment = pduFactory.makeCommentReliablePdu("LAV25-A2 ACQUIRES TARGET BMP2 WITHIN FIRING DISTANCE");
+        //if(eloc1.getX())
+        
+        
+                ResupplyOfferPdu resupplyOfferPdu = pduFactory.makeResupplyOfferPdu();
+        ArrayList<SupplyQuantity> pSupplies = new ArrayList<SupplyQuantity>();
+        SupplyQuantity ammoSupplyQ = new SupplyQuantity();
+        ammoSupplyQ.setSupplyType(HEType);
+        ammoSupplyQ.setQuantity(500);
+
+        //EntityType ammoSupply = new EntityType();
+       // ammoSupply.setEntityKind(EntityKind.MUNITION);
+        //ammoSupply.setDomain(Entity)
+        //ammoSupplyQ.setSupplyType(EntityType.)
+        pSupplies.add(ammoSupplyQ);
+            resupplyOfferPdu.setSupplies(pSupplies);
+            resupplyOfferPdu.setReceivingEntityID(lavID);
+            resupplyOfferPdu.setSupplyingEntityID(bmpID);
+            
+        // should we customize this munition?  what is it for your simulation?
+        
+        while (loopCount < MAX_LOOP_COUNT) // loop the simulation while allowed, can set additional conditions to break
+        {
+            String narrativeMessage1, narrativeMessage2, narrativeMessage3, narrativeMessage4;
+            narrativeMessage4 = "";
+            // initialize loop variables
+            loopCount++;
+            
+            // =============================================================================================
+            // your own simulation code starts here!
+            
+            // compute a track, update an ESPDU, whatever it is that your model is doing...
+            
+            // Where is my entity?
+            entityStatePdu.getEntityLocation().setX(entityStatePdu.getEntityLocation().getX()  - 20); // 1m per timestep
+            entityStatePdu.getEntityLocation().setY(entityStatePdu.getEntityLocation().getY() - 75);
+            // decide whether to fire, and then update the firePdu.  Hmmm, you might want a target to shoort at!
+            Double dx = eloc2.getX() - eloc1.getX();
+            Double dy = eloc2.getY() - eloc1.getY();
+            Double dz = eloc2.getZ() - eloc1.getZ();
+            Double range = Math.sqrt(dx*dx + dy*dy);
+            System.out.println("range" + range + "                dx:" +dx + "        dy:"+ dy);
+            // etc. etc. your code goes here
+                
+            if(range < 100){
+                if (!fireBool)
+                    sendPDU(bmpSightedComment);
+                fireBool = true;
+                System.out.println("Entity#" + firePdu.getFiringEntityID().getEntityID() + " is firing " + firePdu.getDescriptor().getMunitionType().getDomain() + "."+firePdu.getDescriptor().getMunitionType().getCountry()   + "." + firePdu.getDescriptor().getMunitionType().getCategory() + "."+ firePdu.getDescriptor().getMunitionType().getSubCategory() + "." + firePdu.getDescriptor().getMunitionType().getSpecific() + "."+ " at Entity#"+ firePdu.getTargetEntityID().getEntityID());
+            
+
+            if(firePdu.getTargetEntityID().getEntityID() == 2){
+                BMPHitsReceived += 1;
+                if (BMPHitsReceived > 1) {
+                    //DESTROY THE BMP!
+                    
+                    System.out.println("BMP Destroyed after "+ BMPHitsReceived + " hits from 25mm HEI-T");
+                    narrativeMessage4 = "Destroyed BMP2";
+                    destBool = true;
+                    
+                }
+            }
+            }
+            
+            
+            // your loop termination condition goes here
+            if (loopCount > 4) // for example
+            {
+                simulationComplete = true;
+            }      
+            // your own simulation code is finished here!
+            // =============================================================================================
+            
+            // keep track of timestep: wait duration for elapsed time in this loop
+            // Thread.sleep needs a (long) parameter for milliseconds, which are clumsy to use sometimes
+            Thread.sleep((long)(LOOP_DURATION_SECONDS * 1000)); // seconds * (1000 msec/sec) = milliseconds
+            System.out.println ("... Pausing for " + LOOP_DURATION_SECONDS + " seconds");
+            
+            // send the status PDUs for this loop and continue
+            System.out.println ("sending PDUs for simulation step " + loopCount + ", monitor loopback to confirm sent");
+            //sendAllPdus(entityStatePdu, firePduNull, null, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+            //sendAllPdus(entityStatePdu2, null, null, narrativeMessage1, narrativeMessage2, narrativeMessage4);
+            sendPDU(entityStatePdu);
+            sendPDU(entityStatePdu2);
+            if (fireBool)
+                sendPDU(firePdu);
+            if (destBool){
+                sendPDU(bmpDestroyedComment);
+                sendPDU(resupplyOfferPdu);
+            }
+            
+            System.out.println ("... PDUs successfully sent");
+            
+            // ===============================
+            // loop now finished, thus terminate if simulation complete, otherwise send latest PDUs and continue
+            if (simulationComplete || (loopCount > 10000)) // for example; including fail-safe condition is good
+            {
+                CommentReliablePdu completionPdu = pduFactory.makeCommentReliablePdu("White Simulation Completed");
+                sendPDU(completionPdu);
+                System.out.println ("... Termination condition met, simulationComplete=" + simulationComplete);
+                break;
+            }
+        }   // end of while loop
+      } 
+      catch (Exception ex) // handle any exception that your code might choose to provoke!
+      {
+        Logger.getLogger(WhiteSimulation.class.getName()).log(Level.SEVERE, null, ex);
+      }
+    }
+    
+        public void sendPDU(Pdu pdu) {
+        System.out.println("Sending a PDU");
+        MulticastSocket socket = null; // must be initialized, even if null
+        InetAddress destinationIp = null; // must be initialized, even if null
+
+        try {
+            destinationIp = InetAddress.getByName(networkAddress);
+        } catch (UnknownHostException e) {
+            System.out.println(e + " Cannot create address");
+            System.exit(0);
+        }
+        try {
+            // Set up a socket to send information
+            socket = new MulticastSocket(2317);
+        } catch (IOException ex) {
+            Logger.getLogger(WhiteSimulation.class.getName()).log(Level.SEVERE, null, ex);
+        }
+
+        Set<InetAddress> broadcastAddresses;
+        // Loop through sending one ESPDUs
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        DataOutputStream dos = new DataOutputStream(baos);
+        try {
+            pdu.marshal(dos);
+            byte[] data = baos.toByteArray();
+
+            DatagramPacket packet = new DatagramPacket(data, data.length, destinationIp, 2317);
+            socket.send(packet);
+            socket.close();
+        } catch (Exception ex) {
+            Logger.getLogger(WhiteSimulation.class.getName()).log(Level.SEVERE, null, ex);
+        }
+}
+}
\ No newline at end of file