diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverA.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverA.java
index 41d15fadb455c9e2befb829f77072208f992e62e..ddc650fc5fbdce45a80b337cad4e7c015d20b9f0 100644
--- a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverA.java
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverA.java
@@ -20,8 +20,9 @@ public class ABEspduReceiverA {
     /** 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      * somewhat outdated--PDUs can be larger--but this is a reasonable starting point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 DIS_DESTINATION_PORT = 3000;
     public static final int MAX_PDU_SIZE = 8192;
-    public static final String GROUP = "239.1.2.3";
+    public static final String GROUP = "239.1.2.4";
     public static void main(String args[]) {
         MulticastSocket socket;
         DatagramPacket packet;
@@ -31,18 +32,7 @@ public class ABEspduReceiverA {
         
 
         try {
-            // Create TCP Bridge
-            System.out.println("Opening Bridge.");
-            ServerSocket serverSocket = new ServerSocket(2999);
-            Socket clientConnection = serverSocket.accept();
-            
-            OutputStream os = clientConnection.getOutputStream();
-            PrintStream ps = new PrintStream(os);
-            
-            //ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            //DataOutputStream dos = new DataOutputStream(baos);
-            System.out.println("Bridging Complete.");
-            
+
             // Specify the socket to receive data
             socket = new MulticastSocket(3000);
             socket.setBroadcast(true);
@@ -50,15 +40,28 @@ public class ABEspduReceiverA {
             address = InetAddress.getByName(GROUP);
             socket.joinGroup(address);
             
-            System.out.println("Joined Group");
+            System.out.println("Joined Group.");
             // Loop infinitely, receiving datagrams
             while (true) {
+                try
+                {
+                                    // Create TCP Bridge
+                System.out.println("Opening Bridge.");
+
+                Socket clientConnection = new Socket("localhost", 2999); 
+                OutputStream os = clientConnection.getOutputStream();
+                PrintStream ps = new PrintStream(os);
+
+                //ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                //DataOutputStream dos = new DataOutputStream(baos);
+                System.out.println("Bridging Complete.");
+
                 byte buffer[] = new byte[MAX_PDU_SIZE];
                 packet = new DatagramPacket(buffer, buffer.length);
 
                 socket.receive(packet);
                 System.out.println("Packet Received");
-                //ps.println(packet);
+
 
                 List<Pdu> pduBundle = pduFactory.getPdusFromBundle(packet.getData());
                 System.out.println("Bundle size is " + pduBundle.size());
@@ -73,12 +76,27 @@ public class ABEspduReceiverA {
                     if(aPdu instanceof EntityStatePdu)
                     {
                         EntityID eid = ((EntityStatePdu)aPdu).getEntityID();
+                        EntityType entityType = ((EntityStatePdu)aPdu).getEntityType();
+                        ps.println(eid.getSite());
+                        ps.println(eid.getApplication());
+                        ps.println(eid.getEntity());
+                        ps.println(entityType.getEntityKind());      // Platform (vs lifeform, munition, sensor, etc.)
+                        ps.println(entityType.getCountry());              // USA
+                        ps.println(entityType.getDomain());          // Land (vs air, surface, subsurface, space)
+                        ps.println(entityType.getCategory());        // Tank
+                        ps.println(entityType.getSubcategory());     // M1 Abrams
+                        ps.println(entityType.getSpec());            // M1A2 Abrams
+                        //ps.println(packet);
                         Vector3Double position = ((EntityStatePdu)aPdu).getEntityLocation();
                         System.out.print(" EID:[" + eid.getSite() + ", " + eid.getApplication() + ", " + eid.getEntity() + "] ");
                         System.out.print(" Location in DIS coordinates: [" + position.getX() + ", " + position.getY() + ", " + position.getZ() + "]");
                     }
                     System.out.println();
                 } // end trop through PDU bundle
+                }
+                catch (Exception e) {
+                    System.out.println(e);
+                }
 
             } // end while
         } // End try
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverAtoTCP.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverAtoTCP.java
new file mode 100644
index 0000000000000000000000000000000000000000..b634020ae144b7a9d8a1ae21ca4f25f25d27ec83
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverAtoTCP.java
@@ -0,0 +1,111 @@
+
+import java.net.*;
+import java.util.*;
+
+import edu.nps.moves.disutil.*;
+import edu.nps.moves.dis.*;
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
+
+/**
+ * Receives PDUs from the network in IEEE format.
+ *
+ * @author DMcG
+ * @version $Id:$
+ */
+public class ABEspduReceiverAtoTCP {
+
+    /** 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 DIS_DESTINATION_PORT = 3000;
+    public static final int TCP_DESTINATION_PORT = 2999;
+    public static final int MAX_PDU_SIZE = 8192;
+    public static final String GROUP = "239.1.2.4";
+    public static void main(String args[]) {
+        MulticastSocket socket;
+        DatagramPacket packet;
+        InetAddress address;
+        PduFactory pduFactory = new PduFactory();
+        
+        
+
+        try {
+
+            // Specify the socket to receive data
+            socket = new MulticastSocket(DIS_DESTINATION_PORT);
+            socket.setBroadcast(true);
+       
+            address = InetAddress.getByName(GROUP);
+            socket.joinGroup(address);
+            
+            System.out.println("Joined Group.");
+            // Loop infinitely, receiving datagrams
+            while (true) {
+                try
+                {
+                                    // Create TCP Bridge
+                System.out.println("Opening Bridge.");
+
+                Socket clientConnection = new Socket("localhost", TCP_DESTINATION_PORT); 
+                OutputStream os = clientConnection.getOutputStream();
+                PrintStream ps = new PrintStream(os);
+
+                //ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                //DataOutputStream dos = new DataOutputStream(baos);
+                System.out.println("Bridging Complete.");
+
+                byte buffer[] = new byte[MAX_PDU_SIZE];
+                packet = new DatagramPacket(buffer, buffer.length);
+
+                socket.receive(packet);
+                System.out.println("Packet Received");
+
+
+                List<Pdu> pduBundle = pduFactory.getPdusFromBundle(packet.getData());
+                System.out.println("Bundle size is " + pduBundle.size());
+                
+                Iterator it = pduBundle.iterator();
+
+                while(it.hasNext())
+                {
+                    Pdu aPdu = (Pdu)it.next();
+                
+                    System.out.print("got PDU of type: " + aPdu.getClass().getName());
+                    if(aPdu instanceof EntityStatePdu)
+                    {
+                        EntityID eid = ((EntityStatePdu)aPdu).getEntityID();
+                        EntityType entityType = ((EntityStatePdu)aPdu).getEntityType();
+                        ps.println(eid.getSite());
+                        ps.println(eid.getApplication());
+                        ps.println(eid.getEntity());
+                        ps.println(entityType.getEntityKind());      // Platform (vs lifeform, munition, sensor, etc.)
+                        ps.println(entityType.getCountry());              // USA
+                        ps.println(entityType.getDomain());          // Land (vs air, surface, subsurface, space)
+                        ps.println(entityType.getCategory());        // Tank
+                        ps.println(entityType.getSubcategory());     // M1 Abrams
+                        ps.println(entityType.getSpec());            // M1A2 Abrams
+                        //ps.println(packet);
+                        Vector3Double position = ((EntityStatePdu)aPdu).getEntityLocation();
+                        System.out.print(" EID:[" + eid.getSite() + ", " + eid.getApplication() + ", " + eid.getEntity() + "] ");
+                        System.out.print(" Location in DIS coordinates: [" + position.getX() + ", " + position.getY() + ", " + position.getZ() + "]");
+                    }
+                    System.out.println();
+                } // end trop through PDU bundle
+                }
+                catch (Exception e) {
+                    System.out.println(e);
+                }
+
+            } // end while
+        } // End try
+        catch (Exception e) {
+
+            System.out.println(e);
+        }
+
+
+    } // end main
+} // end class
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverBtoTCP.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverBtoTCP.java
new file mode 100644
index 0000000000000000000000000000000000000000..b5a4a7c45328313619eb795a013d9d082260dd24
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverBtoTCP.java
@@ -0,0 +1,111 @@
+
+import java.net.*;
+import java.util.*;
+
+import edu.nps.moves.disutil.*;
+import edu.nps.moves.dis.*;
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.OutputStream;
+import java.io.PrintStream;
+
+/**
+ * Receives PDUs from the network in IEEE format.
+ *
+ * @author DMcG
+ * @version $Id:$
+ */
+public class ABEspduReceiverBtoTCP {
+
+    /** 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 DIS_DESTINATION_PORT = 2800;
+    public static final int TCP_DESTINATION_PORT = 2998;
+    public static final int MAX_PDU_SIZE = 8192;
+    public static final String GROUP = "239.1.2.3";
+    public static void main(String args[]) {
+        MulticastSocket socket;
+        DatagramPacket packet;
+        InetAddress address;
+        PduFactory pduFactory = new PduFactory();
+        
+        
+
+        try {
+
+            // Specify the socket to receive data
+            socket = new MulticastSocket(DIS_DESTINATION_PORT);
+            socket.setBroadcast(true);
+       
+            address = InetAddress.getByName(GROUP);
+            socket.joinGroup(address);
+            
+            System.out.println("Joined Group.");
+            // Loop infinitely, receiving datagrams
+            while (true) {
+                try
+                {
+                                    // Create TCP Bridge
+                System.out.println("Opening Bridge.");
+
+                Socket clientConnection = new Socket("localhost", TCP_DESTINATION_PORT); 
+                OutputStream os = clientConnection.getOutputStream();
+                PrintStream ps = new PrintStream(os);
+
+                //ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                //DataOutputStream dos = new DataOutputStream(baos);
+                System.out.println("Bridging Complete.");
+
+                byte buffer[] = new byte[MAX_PDU_SIZE];
+                packet = new DatagramPacket(buffer, buffer.length);
+
+                socket.receive(packet);
+                System.out.println("Packet Received");
+
+
+                List<Pdu> pduBundle = pduFactory.getPdusFromBundle(packet.getData());
+                System.out.println("Bundle size is " + pduBundle.size());
+                
+                Iterator it = pduBundle.iterator();
+
+                while(it.hasNext())
+                {
+                    Pdu aPdu = (Pdu)it.next();
+                
+                    System.out.print("got PDU of type: " + aPdu.getClass().getName());
+                    if(aPdu instanceof EntityStatePdu)
+                    {
+                        EntityID eid = ((EntityStatePdu)aPdu).getEntityID();
+                        EntityType entityType = ((EntityStatePdu)aPdu).getEntityType();
+                        ps.println(eid.getSite());
+                        ps.println(eid.getApplication());
+                        ps.println(eid.getEntity());
+                        ps.println(entityType.getEntityKind());      // Platform (vs lifeform, munition, sensor, etc.)
+                        ps.println(entityType.getCountry());              // USA
+                        ps.println(entityType.getDomain());          // Land (vs air, surface, subsurface, space)
+                        ps.println(entityType.getCategory());        // Tank
+                        ps.println(entityType.getSubcategory());     // M1 Abrams
+                        ps.println(entityType.getSpec());            // M1A2 Abrams
+                        //ps.println(packet);
+                        Vector3Double position = ((EntityStatePdu)aPdu).getEntityLocation();
+                        System.out.print(" EID:[" + eid.getSite() + ", " + eid.getApplication() + ", " + eid.getEntity() + "] ");
+                        System.out.print(" Location in DIS coordinates: [" + position.getX() + ", " + position.getY() + ", " + position.getZ() + "]");
+                    }
+                    System.out.println();
+                } // end trop through PDU bundle
+                }
+                catch (Exception e) {
+                    System.out.println(e);
+                }
+
+            } // end while
+        } // End try
+        catch (Exception e) {
+
+            System.out.println(e);
+        }
+
+
+    } // end main
+} // end class
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderB.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderB.java
deleted file mode 100644
index 99a064c7b1a2674a2e3dc59c25a292eec4cf7c51..0000000000000000000000000000000000000000
--- a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderB.java
+++ /dev/null
@@ -1,365 +0,0 @@
-
-
-import java.io.*;
-import java.net.*;
-import java.util.*;
-
-import edu.nps.moves.dis.*;
-import edu.nps.moves.disutil.CoordinateConversions;
-import edu.nps.moves.disutil.DisTime;
-
-/**
- * Creates and sends ESPDUs in IEEE binary format. 
- *
- * @author DMcG
- */
-public class ABEspduSenderB 
-{
-    public static final int NUMBER_TO_SEND = 5000;
-
-    public enum NetworkMode{UNICAST, MULTICAST, BROADCAST};
-
-    /** default multicast group we send on */
-    public static final String DEFAULT_MULTICAST_GROUP = "239.1.2.4";
-   
-    /** Port we send on */
-    public static final int    DIS_DESTINATION_PORT = 3101;
-    
-/** Possible system properties, passed in via -Dattr=val
-     * networkMode: unicast, broadcast, multicast
-     * destinationIp: where to send the packet. If in multicast mode, this can be mcast.
-     *                To determine bcast destination IP, use an online bcast address
-     *                caclulator, for example http://www.remotemonitoringsystems.ca/broadcast.php
-     *                If in mcast mode, a join() will be done on the mcast address.
-     * port: port used for both source and destination.
-     * @param args 
-     */
-public static void main(String args[])
-{
-    /** an entity state pdu */
-    EntityStatePdu espdu = new EntityStatePdu();
-    MulticastSocket socket = null;
-    DisTime disTime = DisTime.getInstance();
-    int alternator = -1;
-    
-    // ICBM coordinates for my office
-    double lat = 36.595517; 
-    double lon = -121.877000;
-
-    
-    // Default settings. These are used if no system properties are set. 
-    // If system properties are passed in, these are over ridden.
-    int port = DIS_DESTINATION_PORT;
-    NetworkMode mode = NetworkMode.MULTICAST;
-    InetAddress destinationIp = null;
-    
-    try
-    {
-        destinationIp = InetAddress.getByName(DEFAULT_MULTICAST_GROUP);
-        
-    }
-    catch(Exception e)
-    {
-        System.out.println(e + " Cannot create multicast address");
-        System.exit(0);
-    }
-    
-    // All system properties, passed in on the command line via -Dattribute=value
-    Properties systemProperties = System.getProperties();
-    
-    // IP address we send to
-    String destinationIpString = systemProperties.getProperty("destinationIp");
-    
-    // Port we send to, and local port we open the socket on
-    String portString = systemProperties.getProperty("port");
-    
-    // Network mode: unicast, multicast, broadcast
-    String networkModeString = systemProperties.getProperty("networkMode"); // unicast or multicast or broadcast
-        
-
-    // Set up a socket to send information
-    try
-    {
-        // Port we send to
-        if(portString != null)
-            port = Integer.parseInt(portString);
-        
-        socket = new MulticastSocket(port);
-        
-        // Where we send packets to, the destination IP address
-        if(destinationIpString != null)
-        {
-            destinationIp = InetAddress.getByName(destinationIpString);
-        }
-
-        // Type of transport: unicast, broadcast, or multicast
-        if(networkModeString != null)
-        {
-            if(networkModeString.equalsIgnoreCase("unicast"))
-                mode = NetworkMode.UNICAST;
-            else if(networkModeString.equalsIgnoreCase("broadcast"))
-                mode = NetworkMode.BROADCAST;
-            else if(networkModeString.equalsIgnoreCase("multicast"))
-            {
-                mode = NetworkMode.MULTICAST;
-                if(!destinationIp.isMulticastAddress())
-                {
-                    throw new RuntimeException("Sending to multicast address, but destination address " + destinationIp.toString() + "is not multicast");
-                }
-                
-                socket.joinGroup(destinationIp);
-                
-            }
-        } // end networkModeString
-    }
-    catch(Exception e)
-    {
-        System.out.println("Unable to initialize networking. Exiting.");
-        System.out.println(e);
-        System.exit(-1);
-    }
-    
-    // Initialize values in the Entity State PDU object. The exercise ID is 
-    // a way to differentiate between different virtual worlds on one network.
-    // Note that some values (such as the PDU type and PDU family) are set
-    // automatically when you create the ESPDU.
-    espdu.setExerciseID((short)1);
-    
-    // The EID is the unique identifier for objects in the world. This 
-    // EID should match up with the ID for the object specified in the 
-    // VMRL/x3d/virtual world.
-    EntityID eid = espdu.getEntityID();
-    eid.setSite(1);  // 0 is apparently not a valid site number, per the spec
-    eid.setApplication(1); 
-    eid.setEntity(2); 
-    
-    // Set the entity type. SISO has a big list of enumerations, so that by
-    // specifying various numbers we can say this is an M1A2 American tank,
-    // the USS Enterprise, and so on. We'll make this a tank. There is a 
-    // separate project elsehwhere in this project that implements DIS 
-    // enumerations in C++ and Java, but to keep things simple we just use
-    // numbers here.
-    EntityType entityType = espdu.getEntityType();
-    entityType.setEntityKind((short)1);      // Platform (vs lifeform, munition, sensor, etc.)
-    entityType.setCountry(225);              // USA
-    entityType.setDomain((short)1);          // Land (vs air, surface, subsurface, space)
-    entityType.setCategory((short)1);        // Tank
-    entityType.setSubcategory((short)1);     // M1 Abrams
-    entityType.setSpec((short)3);            // M1A2 Abrams
-    
-
-    Set<InetAddress> bcastAddresses = getBroadcastAddresses();
-    // Loop through sending N ESPDUs
-    try
-    {
-        int connectionCount = 0;
-        ServerSocket serverSocket = new ServerSocket(2999);
-        Socket clientConnection = serverSocket.accept();
-            
-        InputStream is = clientConnection.getInputStream();
-        InputStreamReader isr = new InputStreamReader(is);
-        BufferedReader br = new BufferedReader(isr);
-        System.out.println("Sending " + NUMBER_TO_SEND + " ESPDU packets to " + destinationIp.toString());
-        for(int idx = 0; idx < NUMBER_TO_SEND; idx++)
-        {
-            // DIS time is a pain in the ass. DIS time units are 2^31-1 units per
-            // hour, and time is set to DIS time units from the top of the hour. 
-            // This means that if you start sending just before the top of the hour
-            // the time units can roll over to zero as you are sending. The receivers
-            // (escpecially homegrown ones) are often not able to detect rollover
-            // and may start discarding packets as dupes or out of order. We use
-            // an NPS timestamp here, hundredths of a second since the start of the
-            // year. The DIS standard for time is often ignored in the wild; I've seen
-            // people use Unix time (seconds since 1970) and more. Or you can
-            // just stuff idx into the timestamp field to get something that is monotonically
-            // increasing.
-            
-            // Note that timestamp is used to detect duplicate and out of order packets. 
-            // That means if you DON'T change the timestamp, many implementations will simply
-            // discard subsequent packets that have an identical timestamp. Also, if they
-            // receive a PDU with an timestamp lower than the last one they received, they
-            // may discard it as an earlier, out-of-order PDU. So it is a good idea to
-            // update the timestamp on ALL packets sent.
-            
-
-            // An alterative approach: actually follow the standard. It's a crazy concept,
-            // but it might just work.
-            int ts = disTime.getDisAbsoluteTimestamp();
-            espdu.setTimestamp(ts);
-            
-            // Set the position of the entity in the world. DIS uses a cartesian 
-            // coordinate system with the origin at the center of the earth, the x
-            // axis out at the equator and prime meridian, y out at the equator and
-            // 90 deg east, and z up and out the north pole. To place an object on
-            // the earth's surface you also need a model for the shape of the earth
-            // (it's not a sphere.) All the fancy math necessary to do this is in
-            // the SEDRIS SRM package. There are also some one-off formulas for 
-            // doing conversions from, for example, lat/lon/altitude to DIS coordinates.
-            // Here we use those one-off formulas.
-
-            // Modify the position of the object. This will send the object a little
-            // due east by adding some to the longitude every iteration. Since we
-            // are on the Pacific coast, this sends the object east. Assume we are
-            // at zero altitude. In other worlds you'd use DTED to determine the
-            // local ground altitude at that lat/lon, or you'd just use ground clamping.
-            // The x and y values will change, but the z value should not.
-            
-            //lon = lon + (double)((double)idx / 100000.0);
-            //System.out.println("lla=" + lat + "," + lon + ", 0.0");
-
-            double direction = Math.pow((double)(-1.0), (double)(idx));
-            lon = lon + (direction * 0.00006);
-            System.out.println(lon);
-            
-            double disCoordinates[] = CoordinateConversions.getXYZfromLatLonDegrees(lat, lon, 1.0);
-            Vector3Double location = espdu.getEntityLocation();
-            location.setX(disCoordinates[0]);
-            location.setY(disCoordinates[1]);
-            location.setZ(disCoordinates[2]);
-            System.out.println("lat, lon:" + lat + ", " + lon);
-            System.out.println("DIS coord:" + disCoordinates[0] + ", " + disCoordinates[1] + ", " + disCoordinates[2]);
-
-            // Optionally, we can do some rotation of the entity
-            /*
-            Orientation orientation = espdu.getEntityOrientation();
-            float psi = orientation.getPsi();
-            psi = psi + idx;
-            orientation.setPsi(psi);
-            orientation.setTheta((float)(orientation.getTheta() + idx /2.0));
-             */
-            
-            // You can set other ESPDU values here, such as the velocity, acceleration,
-            // and so on.
-
-            // Marshal out the espdu object to a byte array, then send a datagram
-            // packet with that data in it.
-            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            DataOutputStream dos = new DataOutputStream(baos);
-            espdu.marshal(dos);
-
-            FirePdu fire = new FirePdu();
-            byte[] fireArray = fire.marshal();
-            
-            String serverMessage = br.readLine();
-                System.out.println("The message the client sent was " + serverMessage);
-                
-                // Print some information locally about the Socket
-                // connection. This includes the port and IP numbers
-                // on both sides (the socket pair.)
-                
-                InetAddress localAddress = clientConnection.getLocalAddress();
-                InetAddress remoteAddress = clientConnection.getInetAddress();
-                
-                int localPort = clientConnection.getLocalPort();
-                int remotePort = clientConnection.getPort();
-                
-                // My socket pair connection looks like this, to localhost:
-                // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54876 ))
-                // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54881 ))
-                //
-                // Why is the first IP/port the same, while the second set has
-                // different ports?
-
-
-                System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( " + 
-                        remoteAddress.toString() + ", " + remotePort + " ))");
-                
-                System.out.println("Connection count is: " + connectionCount);
-            
-            // The byte array here is the packet in DIS format. We put that into a 
-            // datagram and send it.
-            byte[] data = baos.toByteArray();
-
-            bcastAddresses = getBroadcastAddresses();
-            Iterator it = bcastAddresses.iterator();
-            while(it.hasNext())
-            {
-               InetAddress bcast = (InetAddress)it.next();
-               System.out.println("Sending bcast to " + bcast);
-               DatagramPacket packet = new DatagramPacket(data, data.length, bcast, 3000);
-               socket.send(packet);
-               packet = new DatagramPacket(fireArray, fireArray.length, bcast, 3000);
-               //socket.send(packet);
-            }
-            
-            // Send every 1 sec. Otherwise this will be all over in a fraction of a second.
-            Thread.sleep(3000);
-
-            location = espdu.getEntityLocation();
-            
-            System.out.println("Espdu #" + idx + " EID=[" + eid.getSite() + "," + eid.getApplication() + "," + eid.getEntity() + "]");
-            System.out.println(" DIS coordinates location=[" + location.getX() + "," + location.getY() + "," + location.getZ() + "]");
-            double c[] = {location.getX(), location.getY(), location.getZ()};
-            double lla[] = CoordinateConversions.xyzToLatLonDegrees(c);
-//            System.out.println(" Location (lat/lon/alt): [" + lla[0] + ", " + lla[1] + ", " + lla[2] + "]");
-
-        }
-    }
-    catch(Exception e)
-    {
-        System.out.println(e);
-    }
-    
-    
-    
-   
-        
-    }
-    
-    
-    
-
-
- /**
-    * A number of sites get all snippy about using 255.255.255.255 for a bcast
-    * address; it trips their security software and they kick you off their 
-    * network. (Comcast, NPS.) This determines the bcast address for all
-    * connected interfaces, based on the IP and subnet mask. If you have
-    * a dual-homed host it will return a bcast address for both. If you have
-    * some VMs running on your host this will pick up the addresses for those
-    * as well--eg running VMWare on your laptop with a local IP this will
-    * also pick up a 192.168 address assigned to the VM by the host OS.
-    * 
-    * @return set of all bcast addresses
-    */
-   public static Set<InetAddress> getBroadcastAddresses()
-   {
-       Set<InetAddress> bcastAddresses = new HashSet<InetAddress>();
-       Enumeration interfaces;
-       
-       try
-       {
-           interfaces = NetworkInterface.getNetworkInterfaces();
-           
-           while(interfaces.hasMoreElements())
-           {
-               NetworkInterface anInterface = (NetworkInterface)interfaces.nextElement();
-               
-               if(anInterface.isUp())
-               {
-                   Iterator it = anInterface.getInterfaceAddresses().iterator();
-                   while(it.hasNext())
-                   {
-                       InterfaceAddress anAddress = (InterfaceAddress)it.next();
-                       if((anAddress == null || anAddress.getAddress().isLinkLocalAddress()))
-                           continue;
-                       
-                       //System.out.println("Getting bcast address for " + anAddress);
-                       InetAddress abcast = anAddress.getBroadcast();
-                       if(abcast != null)
-                        bcastAddresses.add(abcast);
-                   }
-               }
-           }
-           
-       }
-       catch(Exception e)
-       {
-           e.printStackTrace();
-           System.out.println(e);
-       }
-       
-       return bcastAddresses;   
-   }
-
-}
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderA.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderA.java
similarity index 84%
rename from projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderA.java
rename to projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderA.java
index 79dbfbbb8b13552c6bb8fbea6dcfa5c4c5787f23..c3fdd6285cd54219ff8a4be5c58639f27025c2ca 100644
--- a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderA.java
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderA.java
@@ -1,6 +1,4 @@
 
-
-
 import java.io.*;
 import java.net.*;
 import java.util.*;
@@ -14,14 +12,14 @@ import edu.nps.moves.disutil.DisTime;
  *
  * @author DMcG
  */
-public class ABEspduSenderA 
+public class AngelBlankEspduSenderA 
 {
     public static final int NUMBER_TO_SEND = 5000;
 
     public enum NetworkMode{UNICAST, MULTICAST, BROADCAST};
 
     /** default multicast group we send on */
-    public static final String DEFAULT_MULTICAST_GROUP="239.1.2.3";
+    public static final String DEFAULT_MULTICAST_GROUP="239.1.2.4";
    
     /** Port we send on */
     public static final int DIS_DESTINATION_PORT = 3000;
@@ -84,7 +82,7 @@ public static void main(String args[])
         if(portString != null)
             port = Integer.parseInt(portString);
         
-        socket = new MulticastSocket(port);
+        socket = new MulticastSocket(DIS_DESTINATION_PORT);
         
         // Where we send packets to, the destination IP address
         if(destinationIpString != null)
@@ -129,7 +127,7 @@ public static void main(String args[])
     // EID should match up with the ID for the object specified in the 
     // VMRL/x3d/virtual world.
     EntityID eid = espdu.getEntityID();
-    eid.setSite(1);  // 0 is apparently not a valid site number, per the spec
+    eid.setSite(100);  // 0 is apparently not a valid site number, per the spec
     eid.setApplication(1); 
     eid.setEntity(2); 
     
@@ -148,13 +146,13 @@ public static void main(String args[])
     entityType.setSpec((short)3);            // M1A2 Abrams
     
 
-    Set<InetAddress> bcastAddresses = getBroadcastAddresses();
+    //Set<InetAddress> bcastAddresses = getBroadcastAddresses();
     // Loop through sending N ESPDUs
     try
     {
         int connectionCount = 0;
         //Socket socketTcp = new Socket("localhost", 2998); 
-        ServerSocket serverSocket = new ServerSocket(2999);
+        //ServerSocket serverSocket = new ServerSocket(2999);
         
         
         //InputStream is = socketTcp.getInputStream();
@@ -163,6 +161,7 @@ public static void main(String args[])
         System.out.println("Sending " + NUMBER_TO_SEND + " ESPDU packets to " + destinationIp.toString());
         for(int idx = 0; idx < NUMBER_TO_SEND; idx++)
         {
+            eid.setEntity(idx+1);
             // DIS time is a pain in the ass. DIS time units are 2^31-1 units per
             // hour, and time is set to DIS time units from the top of the hour. 
             // This means that if you start sending just before the top of the hour
@@ -210,15 +209,15 @@ public static void main(String args[])
 
             double direction = Math.pow((double)(-1.0), (double)(idx));
             lon = lon + (direction * 0.00006);
-            System.out.println(lon);
+            //System.out.println(lon);
             
             double disCoordinates[] = CoordinateConversions.getXYZfromLatLonDegrees(lat, lon, 1.0);
             Vector3Double location = espdu.getEntityLocation();
             location.setX(disCoordinates[0]);
             location.setY(disCoordinates[1]);
             location.setZ(disCoordinates[2]);
-            System.out.println("lat, lon:" + lat + ", " + lon);
-            System.out.println("DIS coord:" + disCoordinates[0] + ", " + disCoordinates[1] + ", " + disCoordinates[2]);
+            //System.out.println("lat, lon:" + lat + ", " + lon);
+            //System.out.println("DIS coord:" + disCoordinates[0] + ", " + disCoordinates[1] + ", " + disCoordinates[2]);
 
             // Optionally, we can do some rotation of the entity
             /*
@@ -238,51 +237,26 @@ public static void main(String args[])
             DataOutputStream dos = new DataOutputStream(baos);
             espdu.marshal(dos);
 
-            FirePdu fire = new FirePdu();
-            byte[] fireArray = fire.marshal();
-            
-            /**String serverMessage = br.readLine();
-                System.out.println("The message the client sent was " + serverMessage);
-                
-                // Print some information locally about the Socket
-                // connection. This includes the port and IP numbers
-                // on both sides (the socket pair.)
-                
-                InetAddress localAddress = socketTcp.getLocalAddress();
-                InetAddress remoteAddress = socketTcp.getInetAddress();
-                
-                int localPort = socketTcp.getLocalPort();
-                int remotePort = socketTcp.getPort();
-                
-                // My socket pair connection looks like this, to localhost:
-                // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54876 ))
-                // Socket pair: (( /0:0:0:0:0:0:0:1, 2317 ), ( /0:0:0:0:0:0:0:1, 54881 ))
-                //
-                // Why is the first IP/port the same, while the second set has
-                // different ports?
-
-
-                System.out.println("Socket pair: (( " + localAddress.toString() + ", " + localPort + " ), ( " + 
-                        remoteAddress.toString() + ", " + remotePort + " ))");
-                
-                System.out.println("Connection count is: " + connectionCount);**/
-                
+            //FirePdu fire = new FirePdu();
+            //byte[] fireArray = fire.marshal();
+              
                 
             // The byte array here is the packet in DIS format. We put that into a 
             // datagram and send it.
             byte[] data = baos.toByteArray();
-
-            bcastAddresses = getBroadcastAddresses();
+            DatagramPacket packet = new DatagramPacket(data, data.length, InetAddress.getByName(DEFAULT_MULTICAST_GROUP), DIS_DESTINATION_PORT);
+            socket.send(packet);
+            /**bcastAddresses = getBroadcastAddresses();
             Iterator it = bcastAddresses.iterator();
             while(it.hasNext())
             {
                InetAddress bcast = (InetAddress)it.next();
                System.out.println("Sending bcast to " + bcast);
-               DatagramPacket packet = new DatagramPacket(data, data.length, bcast, 3000);
+               DatagramPacket packet = new DatagramPacket(data, data.length, bcast, DIS_DESTINATION_PORT);
                socket.send(packet);
-               packet = new DatagramPacket(fireArray, fireArray.length, bcast, 3000);
+               //packet = new DatagramPacket(fireArray, fireArray.length, bcast, DIS_DESTINATION_PORT);
                //socket.send(packet);
-            }
+            }**/
             
             // Send every 1 sec. Otherwise this will be all over in a fraction of a second.
             Thread.sleep(3000);
@@ -291,9 +265,9 @@ public static void main(String args[])
             
             System.out.println("Espdu #" + idx + " EID=[" + eid.getSite() + "," + eid.getApplication() + "," + eid.getEntity() + "]");
             System.out.println(" DIS coordinates location=[" + location.getX() + "," + location.getY() + "," + location.getZ() + "]");
-            double c[] = {location.getX(), location.getY(), location.getZ()};
-            double lla[] = CoordinateConversions.xyzToLatLonDegrees(c);
-//            System.out.println(" Location (lat/lon/alt): [" + lla[0] + ", " + lla[1] + ", " + lla[2] + "]");
+            //double c[] = {location.getX(), location.getY(), location.getZ()};
+            //double lla[] = CoordinateConversions.xyzToLatLonDegrees(c);
+//          System.out.println(" Location (lat/lon/alt): [" + lla[0] + ", " + lla[1] + ", " + lla[2] + "]");
 
         }
     }
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderB.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderB.java
index 197d9c29565c6241152efe34d80a02c9d2683e05..df6423963194ffcfb634c22cb1ded48aeba5457d 100644
--- a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderB.java
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderB.java
@@ -1,347 +1,333 @@
-
-import edu.nps.moves.dis.EntityID;
-import edu.nps.moves.dis.EntityStatePdu;
-import edu.nps.moves.dis.EntityType;
-import edu.nps.moves.dis.FirePdu;
-import edu.nps.moves.dis.Vector3Double;
-import edu.nps.moves.disutil.CoordinateConversions;
-import edu.nps.moves.disutil.DisTime;
-import java.io.ByteArrayOutputStream;
-import java.io.DataOutputStream;
-import java.net.DatagramPacket;
-import java.net.InetAddress;
-import java.net.InterfaceAddress;
-import java.net.MulticastSocket;
-import java.net.NetworkInterface;
-import java.util.Enumeration;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.Properties;
-import java.util.Set;
-
-/*
- * To change this license header, choose License Headers in Project Properties.
- * To change this template file, choose Tools | Templates
- * and open the template in the editor.
- */
-
-/**
- *
- * @author Michael
- */
-public class AngelBlankEspduSenderB {
-
-    public static final int NUMBER_TO_SEND = 5000;
-
-    public enum NetworkMode{UNICAST, MULTICAST, BROADCAST};
-
-    /** default multicast group we send on */
-    public static final String DEFAULT_MULTICAST_GROUP = "239.1.2.4";
-   
-    /** Port we send on */
-    public static final int    DIS_DESTINATION_PORT = 3101;
-    
-/** Possible system properties, passed in via -Dattr=val
-     * networkMode: unicast, broadcast, multicast
-     * destinationIp: where to send the packet. If in multicast mode, this can be mcast.
-     *                To determine bcast destination IP, use an online bcast address
-     *                caclulator, for example http://www.remotemonitoringsystems.ca/broadcast.php
-     *                If in mcast mode, a join() will be done on the mcast address.
-     * port: port used for both source and destination.
-     * @param args 
-     */
-public static void main(String args[])
-{
-    /** an entity state pdu */
-    EntityStatePdu espdu = new EntityStatePdu();
-    MulticastSocket socket = null;
-    DisTime disTime = DisTime.getInstance();
-    int alternator = -1;
-    
-    // ICBM coordinates for my office
-    double lat = 36.595517; 
-    double lon = -121.877000;
-
-    
-    // Default settings. These are used if no system properties are set. 
-    // If system properties are passed in, these are over ridden.
-    int port = DIS_DESTINATION_PORT;
-    NetworkMode mode = NetworkMode.MULTICAST;
-    InetAddress destinationIp = null;
-    
-    try
-    {
-        destinationIp = InetAddress.getByName(DEFAULT_MULTICAST_GROUP);
-    }
-    catch(Exception e)
-    {
-        System.out.println(e + " Cannot create multicast address");
-        System.exit(0);
-    }
-    
-    // All system properties, passed in on the command line via -Dattribute=value
-    Properties systemProperties = System.getProperties();
-    
-    // IP address we send to
-    String destinationIpString = systemProperties.getProperty("destinationIp");
-    
-    // Port we send to, and local port we open the socket on
-    String portString = systemProperties.getProperty("port");
-    
-    // Network mode: unicast, multicast, broadcast
-    String networkModeString = systemProperties.getProperty("networkMode"); // unicast or multicast or broadcast
-        
-
-    // Set up a socket to send information
-    try
-    {
-        // Port we send to
-        if(portString != null)
-            port = Integer.parseInt(portString);
-        
-        socket = new MulticastSocket(port);
-        
-        // Where we send packets to, the destination IP address
-        if(destinationIpString != null)
-        {
-            destinationIp = InetAddress.getByName(destinationIpString);
-        }
-
-        // Type of transport: unicast, broadcast, or multicast
-        if(networkModeString != null)
-        {
-            if(networkModeString.equalsIgnoreCase("unicast"))
-                mode = NetworkMode.UNICAST;
-            else if(networkModeString.equalsIgnoreCase("broadcast"))
-                mode = NetworkMode.BROADCAST;
-            else if(networkModeString.equalsIgnoreCase("multicast"))
-            {
-                mode = NetworkMode.MULTICAST;
-                if(!destinationIp.isMulticastAddress())
-                {
-                    throw new RuntimeException("Sending to multicast address, but destination address " + destinationIp.toString() + "is not multicast");
-                }
-                
-                socket.joinGroup(destinationIp);
-                
-            }
-        } // end networkModeString
-    }
-    catch(Exception e)
-    {
-        System.out.println("Unable to initialize networking. Exiting.");
-        System.out.println(e);
-        System.exit(-1);
-    }
-    
-    // Initialize values in the Entity State PDU object. The exercise ID is 
-    // a way to differentiate between different virtual worlds on one network.
-    // Note that some values (such as the PDU type and PDU family) are set
-    // automatically when you create the ESPDU.
-    espdu.setExerciseID((short)1);
-    
-    // The EID is the unique identifier for objects in the world. This 
-    // EID should match up with the ID for the object specified in the 
-    // VMRL/x3d/virtual world.
-    EntityID eid = espdu.getEntityID();
-    eid.setSite(1);  // 0 is apparently not a valid site number, per the spec
-    eid.setApplication(1); 
-    eid.setEntity(2); 
-    
-    // Set the entity type. SISO has a big list of enumerations, so that by
-    // specifying various numbers we can say this is an M1A2 American tank,
-    // the USS Enterprise, and so on. We'll make this a tank. There is a 
-    // separate project elsehwhere in this project that implements DIS 
-    // enumerations in C++ and Java, but to keep things simple we just use
-    // numbers here.
-    EntityType entityType = espdu.getEntityType();
-    entityType.setEntityKind((short)1);      // Platform (vs lifeform, munition, sensor, etc.)
-    entityType.setCountry(225);              // USA
-    entityType.setDomain((short)1);          // Land (vs air, surface, subsurface, space)
-    entityType.setCategory((short)1);        // Tank
-    entityType.setSubcategory((short)1);     // M1 Abrams
-    entityType.setSpec((short)3);            // M1A2 Abrams
-    
-
-    Set<InetAddress> bcastAddresses = getBroadcastAddresses();
-    // Loop through sending N ESPDUs
-    try
-    {
-        System.out.println("Sending " + NUMBER_TO_SEND + " ESPDU packets to " + destinationIp.toString());
-        for(int idx = 0; idx < NUMBER_TO_SEND; idx++)
-        {
-            // DIS time is a pain in the ass. DIS time units are 2^31-1 units per
-            // hour, and time is set to DIS time units from the top of the hour. 
-            // This means that if you start sending just before the top of the hour
-            // the time units can roll over to zero as you are sending. The receivers
-            // (escpecially homegrown ones) are often not able to detect rollover
-            // and may start discarding packets as dupes or out of order. We use
-            // an NPS timestamp here, hundredths of a second since the start of the
-            // year. The DIS standard for time is often ignored in the wild; I've seen
-            // people use Unix time (seconds since 1970) and more. Or you can
-            // just stuff idx into the timestamp field to get something that is monotonically
-            // increasing.
-            
-            // Note that timestamp is used to detect duplicate and out of order packets. 
-            // That means if you DON'T change the timestamp, many implementations will simply
-            // discard subsequent packets that have an identical timestamp. Also, if they
-            // receive a PDU with an timestamp lower than the last one they received, they
-            // may discard it as an earlier, out-of-order PDU. So it is a good idea to
-            // update the timestamp on ALL packets sent.
-            
-
-            // An alterative approach: actually follow the standard. It's a crazy concept,
-            // but it might just work.
-            int ts = disTime.getDisAbsoluteTimestamp();
-            espdu.setTimestamp(ts);
-            
-            // Set the position of the entity in the world. DIS uses a cartesian 
-            // coordinate system with the origin at the center of the earth, the x
-            // axis out at the equator and prime meridian, y out at the equator and
-            // 90 deg east, and z up and out the north pole. To place an object on
-            // the earth's surface you also need a model for the shape of the earth
-            // (it's not a sphere.) All the fancy math necessary to do this is in
-            // the SEDRIS SRM package. There are also some one-off formulas for 
-            // doing conversions from, for example, lat/lon/altitude to DIS coordinates.
-            // Here we use those one-off formulas.
-
-            // Modify the position of the object. This will send the object a little
-            // due east by adding some to the longitude every iteration. Since we
-            // are on the Pacific coast, this sends the object east. Assume we are
-            // at zero altitude. In other worlds you'd use DTED to determine the
-            // local ground altitude at that lat/lon, or you'd just use ground clamping.
-            // The x and y values will change, but the z value should not.
-            
-            //lon = lon + (double)((double)idx / 100000.0);
-            //System.out.println("lla=" + lat + "," + lon + ", 0.0");
-
-            double direction = Math.pow((double)(-1.0), (double)(idx));
-            lon = lon + (direction * 0.00006);
-            System.out.println(lon);
-            
-            double disCoordinates[] = CoordinateConversions.getXYZfromLatLonDegrees(lat, lon, 1.0);
-            Vector3Double location = espdu.getEntityLocation();
-            location.setX(disCoordinates[0]);
-            location.setY(disCoordinates[1]);
-            location.setZ(disCoordinates[2]);
-            System.out.println("lat, lon:" + lat + ", " + lon);
-            System.out.println("DIS coord:" + disCoordinates[0] + ", " + disCoordinates[1] + ", " + disCoordinates[2]);
-
-            // Optionally, we can do some rotation of the entity
-            /*
-            Orientation orientation = espdu.getEntityOrientation();
-            float psi = orientation.getPsi();
-            psi = psi + idx;
-            orientation.setPsi(psi);
-            orientation.setTheta((float)(orientation.getTheta() + idx /2.0));
-             */
-            
-            // You can set other ESPDU values here, such as the velocity, acceleration,
-            // and so on.
-
-            // Marshal out the espdu object to a byte array, then send a datagram
-            // packet with that data in it.
-            ByteArrayOutputStream baos = new ByteArrayOutputStream();
-            DataOutputStream dos = new DataOutputStream(baos);
-            espdu.marshal(dos);
-
-            FirePdu fire = new FirePdu();
-            byte[] fireArray = fire.marshal();
-            
-            // The byte array here is the packet in DIS format. We put that into a 
-            // datagram and send it.
-            byte[] data = baos.toByteArray();
-
-            bcastAddresses = getBroadcastAddresses();
-            Iterator it = bcastAddresses.iterator();
-            while(it.hasNext())
-            {
-               InetAddress bcast = (InetAddress)it.next();
-               System.out.println("Sending bcast to " + bcast);
-               DatagramPacket packet = new DatagramPacket(data, data.length, bcast, 3000);
-               socket.send(packet);
-               packet = new DatagramPacket(fireArray, fireArray.length, bcast, 3000);
-               //socket.send(packet);
-            }
-            
-            // Send every 1 sec. Otherwise this will be all over in a fraction of a second.
-            Thread.sleep(3000);
-
-            location = espdu.getEntityLocation();
-            
-            System.out.println("Espdu #" + idx + " EID=[" + eid.getSite() + "," + eid.getApplication() + "," + eid.getEntity() + "]");
-            System.out.println(" DIS coordinates location=[" + location.getX() + "," + location.getY() + "," + location.getZ() + "]");
-            double c[] = {location.getX(), location.getY(), location.getZ()};
-            double lla[] = CoordinateConversions.xyzToLatLonDegrees(c);
-//            System.out.println(" Location (lat/lon/alt): [" + lla[0] + ", " + lla[1] + ", " + lla[2] + "]");
-
-        }
-    }
-    catch(Exception e)
-    {
-        System.out.println(e);
-    }
-    
-    
-    
-   
-        
-    }
-    
-    
-    
-
-
- /**
-    * A number of sites get all snippy about using 255.255.255.255 for a bcast
-    * address; it trips their security software and they kick you off their 
-    * network. (Comcast, NPS.) This determines the bcast address for all
-    * connected interfaces, based on the IP and subnet mask. If you have
-    * a dual-homed host it will return a bcast address for both. If you have
-    * some VMs running on your host this will pick up the addresses for those
-    * as well--eg running VMWare on your laptop with a local IP this will
-    * also pick up a 192.168 address assigned to the VM by the host OS.
-    * 
-    * @return set of all bcast addresses
-    */
-   public static Set<InetAddress> getBroadcastAddresses()
-   {
-       Set<InetAddress> bcastAddresses = new HashSet<InetAddress>();
-       Enumeration interfaces;
-       
-       try
-       {
-           interfaces = NetworkInterface.getNetworkInterfaces();
-           
-           while(interfaces.hasMoreElements())
-           {
-               NetworkInterface anInterface = (NetworkInterface)interfaces.nextElement();
-               
-               if(anInterface.isUp())
-               {
-                   Iterator it = anInterface.getInterfaceAddresses().iterator();
-                   while(it.hasNext())
-                   {
-                       InterfaceAddress anAddress = (InterfaceAddress)it.next();
-                       if((anAddress == null || anAddress.getAddress().isLinkLocalAddress()))
-                           continue;
-                       
-                       //System.out.println("Getting bcast address for " + anAddress);
-                       InetAddress abcast = anAddress.getBroadcast();
-                       if(abcast != null)
-                        bcastAddresses.add(abcast);
-                   }
-               }
-           }
-           
-       }
-       catch(Exception e)
-       {
-           e.printStackTrace();
-           System.out.println(e);
-       }
-       
-       return bcastAddresses;   
-   }
-
-}
+
+import java.io.*;
+import java.net.*;
+import java.util.*;
+
+import edu.nps.moves.dis.*;
+import edu.nps.moves.disutil.CoordinateConversions;
+import edu.nps.moves.disutil.DisTime;
+
+/**
+ * Creates and sends ESPDUs in IEEE binary format. 
+ *
+ * @author DMcG
+ */
+public class AngelBlankEspduSenderB 
+{
+    public static final int NUMBER_TO_SEND = 5000;
+
+    public enum NetworkMode{UNICAST, MULTICAST, BROADCAST};
+
+    /** default multicast group we send on */
+    public static final String DEFAULT_MULTICAST_GROUP="239.1.2.3";
+   
+    /** Port we send on */
+    public static final int DIS_DESTINATION_PORT = 2800;
+    
+/** Possible system properties, passed in via -Dattr=val
+     * networkMode: unicast, broadcast, multicast
+     * destinationIp: where to send the packet. If in multicast mode, this can be mcast.
+     *                To determine bcast destination IP, use an online bcast address
+     *                caclulator, for example http://www.remotemonitoringsystems.ca/broadcast.php
+     *                If in mcast mode, a join() will be done on the mcast address.
+     * port: port used for both source and destination.
+     * @param args 
+     */
+public static void main(String args[])
+{
+    /** an entity state pdu */
+    EntityStatePdu espdu = new EntityStatePdu();
+    MulticastSocket socket = null;
+    DisTime disTime = DisTime.getInstance();
+    int alternator = -1;
+    
+    // ICBM coordinates for my office
+    double lat = 36.595517; 
+    double lon = -121.877000;
+
+    
+    // Default settings. These are used if no system properties are set. 
+    // If system properties are passed in, these are over ridden.
+    int port = DIS_DESTINATION_PORT;
+    NetworkMode mode = NetworkMode.MULTICAST;
+    InetAddress destinationIp = null;
+    
+    try
+    {
+        destinationIp = InetAddress.getByName(DEFAULT_MULTICAST_GROUP);
+    }
+    catch(Exception e)
+    {
+        System.out.println(e + " Cannot create multicast address");
+        System.exit(0);
+    }
+    
+    // All system properties, passed in on the command line via -Dattribute=value
+    Properties systemProperties = System.getProperties();
+    
+    // IP address we send to
+    String destinationIpString = systemProperties.getProperty("destinationIp");
+    
+    // Port we send to, and local port we open the socket on
+    String portString = systemProperties.getProperty("port");
+    
+    // Network mode: unicast, multicast, broadcast
+    String networkModeString = systemProperties.getProperty("networkMode"); // unicast or multicast or broadcast
+        
+
+    // Set up a socket to send information
+    try
+    {
+        // Port we send to
+        if(portString != null)
+            port = Integer.parseInt(portString);
+        
+        socket = new MulticastSocket(DIS_DESTINATION_PORT);
+        
+        // Where we send packets to, the destination IP address
+        if(destinationIpString != null)
+        {
+            destinationIp = InetAddress.getByName(destinationIpString);
+        }
+
+        // Type of transport: unicast, broadcast, or multicast
+        if(networkModeString != null)
+        {
+            if(networkModeString.equalsIgnoreCase("unicast"))
+                mode = NetworkMode.UNICAST;
+            else if(networkModeString.equalsIgnoreCase("broadcast"))
+                mode = NetworkMode.BROADCAST;
+            else if(networkModeString.equalsIgnoreCase("multicast"))
+            {
+                mode = NetworkMode.MULTICAST;
+                if(!destinationIp.isMulticastAddress())
+                {
+                    throw new RuntimeException("Sending to multicast address, but destination address " + destinationIp.toString() + "is not multicast");
+                }
+                
+                socket.joinGroup(destinationIp);
+                
+            }
+        } // end networkModeString
+    }
+    catch(Exception e)
+    {
+        System.out.println("Unable to initialize networking. Exiting.");
+        System.out.println(e);
+        System.exit(-1);
+    }
+    
+    // Initialize values in the Entity State PDU object. The exercise ID is 
+    // a way to differentiate between different virtual worlds on one network.
+    // Note that some values (such as the PDU type and PDU family) are set
+    // automatically when you create the ESPDU.
+    espdu.setExerciseID((short)1);
+    
+    // The EID is the unique identifier for objects in the world. This 
+    // EID should match up with the ID for the object specified in the 
+    // VMRL/x3d/virtual world.
+    EntityID eid = espdu.getEntityID();
+    eid.setSite(200);  // 0 is apparently not a valid site number, per the spec
+    eid.setApplication(1); 
+    eid.setEntity(2); 
+    
+    // Set the entity type. SISO has a big list of enumerations, so that by
+    // specifying various numbers we can say this is an M1A2 American tank,
+    // the USS Enterprise, and so on. We'll make this a tank. There is a 
+    // separate project elsehwhere in this project that implements DIS 
+    // enumerations in C++ and Java, but to keep things simple we just use
+    // numbers here.
+    EntityType entityType = espdu.getEntityType();
+    entityType.setEntityKind((short)1);      // Platform (vs lifeform, munition, sensor, etc.)
+    entityType.setCountry(225);              // USA
+    entityType.setDomain((short)1);          // Land (vs air, surface, subsurface, space)
+    entityType.setCategory((short)1);        // Tank
+    entityType.setSubcategory((short)1);     // M1 Abrams
+    entityType.setSpec((short)3);            // M1A2 Abrams
+    
+
+    //Set<InetAddress> bcastAddresses = getBroadcastAddresses();
+    // Loop through sending N ESPDUs
+    try
+    {
+        int connectionCount = 0;
+        //Socket socketTcp = new Socket("localhost", 2998); 
+        //ServerSocket serverSocket = new ServerSocket(2999);
+        
+        
+        //InputStream is = socketTcp.getInputStream();
+        //InputStreamReader isr = new InputStreamReader(is);
+        //BufferedReader br = new BufferedReader(isr);
+        System.out.println("Sending " + NUMBER_TO_SEND + " ESPDU packets to " + destinationIp.toString());
+        for(int idx = 0; idx < NUMBER_TO_SEND; idx++)
+        {
+            eid.setEntity(idx+1);
+            // DIS time is a pain in the ass. DIS time units are 2^31-1 units per
+            // hour, and time is set to DIS time units from the top of the hour. 
+            // This means that if you start sending just before the top of the hour
+            // the time units can roll over to zero as you are sending. The receivers
+            // (escpecially homegrown ones) are often not able to detect rollover
+            // and may start discarding packets as dupes or out of order. We use
+            // an NPS timestamp here, hundredths of a second since the start of the
+            // year. The DIS standard for time is often ignored in the wild; I've seen
+            // people use Unix time (seconds since 1970) and more. Or you can
+            // just stuff idx into the timestamp field to get something that is monotonically
+            // increasing.
+            
+            // Note that timestamp is used to detect duplicate and out of order packets. 
+            // That means if you DON'T change the timestamp, many implementations will simply
+            // discard subsequent packets that have an identical timestamp. Also, if they
+            // receive a PDU with an timestamp lower than the last one they received, they
+            // may discard it as an earlier, out-of-order PDU. So it is a good idea to
+            // update the timestamp on ALL packets sent.
+            
+
+            // An alterative approach: actually follow the standard. It's a crazy concept,
+            // but it might just work.
+            int ts = disTime.getDisAbsoluteTimestamp();
+            espdu.setTimestamp(ts);
+            
+            // Set the position of the entity in the world. DIS uses a cartesian 
+            // coordinate system with the origin at the center of the earth, the x
+            // axis out at the equator and prime meridian, y out at the equator and
+            // 90 deg east, and z up and out the north pole. To place an object on
+            // the earth's surface you also need a model for the shape of the earth
+            // (it's not a sphere.) All the fancy math necessary to do this is in
+            // the SEDRIS SRM package. There are also some one-off formulas for 
+            // doing conversions from, for example, lat/lon/altitude to DIS coordinates.
+            // Here we use those one-off formulas.
+
+            // Modify the position of the object. This will send the object a little
+            // due east by adding some to the longitude every iteration. Since we
+            // are on the Pacific coast, this sends the object east. Assume we are
+            // at zero altitude. In other worlds you'd use DTED to determine the
+            // local ground altitude at that lat/lon, or you'd just use ground clamping.
+            // The x and y values will change, but the z value should not.
+            
+            //lon = lon + (double)((double)idx / 100000.0);
+            //System.out.println("lla=" + lat + "," + lon + ", 0.0");
+
+            double direction = Math.pow((double)(-1.0), (double)(idx));
+            lon = lon + (direction * 0.00006);
+            //System.out.println(lon);
+            
+            double disCoordinates[] = CoordinateConversions.getXYZfromLatLonDegrees(lat, lon, 1.0);
+            Vector3Double location = espdu.getEntityLocation();
+            location.setX(disCoordinates[0]);
+            location.setY(disCoordinates[1]);
+            location.setZ(disCoordinates[2]);
+            //System.out.println("lat, lon:" + lat + ", " + lon);
+            //System.out.println("DIS coord:" + disCoordinates[0] + ", " + disCoordinates[1] + ", " + disCoordinates[2]);
+
+            // Optionally, we can do some rotation of the entity
+            /*
+            Orientation orientation = espdu.getEntityOrientation();
+            float psi = orientation.getPsi();
+            psi = psi + idx;
+            orientation.setPsi(psi);
+            orientation.setTheta((float)(orientation.getTheta() + idx /2.0));
+             */
+            
+            // You can set other ESPDU values here, such as the velocity, acceleration,
+            // and so on.
+
+            // Marshal out the espdu object to a byte array, then send a datagram
+            // packet with that data in it.
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            DataOutputStream dos = new DataOutputStream(baos);
+            espdu.marshal(dos);
+
+            FirePdu fire = new FirePdu();
+            byte[] fireArray = fire.marshal();
+              
+                
+            // The byte array here is the packet in DIS format. We put that into a 
+            // datagram and send it.
+            byte[] data = baos.toByteArray();
+            DatagramPacket packet = new DatagramPacket(data, data.length, InetAddress.getByName(DEFAULT_MULTICAST_GROUP), DIS_DESTINATION_PORT);
+            socket.send(packet);
+            /**bcastAddresses = getBroadcastAddresses();
+            Iterator it = bcastAddresses.iterator();
+            while(it.hasNext())
+            {
+               InetAddress bcast = (InetAddress)it.next();
+               System.out.println("Sending bcast to " + bcast);
+               DatagramPacket packet = new DatagramPacket(data, data.length, bcast, DIS_DESTINATION_PORT);
+               socket.send(packet);
+               //packet = new DatagramPacket(fireArray, fireArray.length, bcast, DIS_DESTINATION_PORT);
+               //socket.send(packet);
+            }**/
+            
+            // Send every 1 sec. Otherwise this will be all over in a fraction of a second.
+            Thread.sleep(3000);
+
+            location = espdu.getEntityLocation();
+            
+            System.out.println("Espdu #" + idx + " EID=[" + eid.getSite() + "," + eid.getApplication() + "," + eid.getEntity() + "]");
+            System.out.println(" DIS coordinates location=[" + location.getX() + "," + location.getY() + "," + location.getZ() + "]");
+            //double c[] = {location.getX(), location.getY(), location.getZ()};
+            //double lla[] = CoordinateConversions.xyzToLatLonDegrees(c);
+//          System.out.println(" Location (lat/lon/alt): [" + lla[0] + ", " + lla[1] + ", " + lla[2] + "]");
+
+        }
+    }
+    catch(Exception e)
+    {
+        System.out.println(e);
+    }
+        
+}
+
+ /**
+    * A number of sites get all snippy about using 255.255.255.255 for a bcast
+    * address; it trips their security software and they kick you off their 
+    * network. (Comcast, NPS.) This determines the bcast address for all
+    * connected interfaces, based on the IP and subnet mask. If you have
+    * a dual-homed host it will return a bcast address for both. If you have
+    * some VMs running on your host this will pick up the addresses for those
+    * as well--eg running VMWare on your laptop with a local IP this will
+    * also pick up a 192.168 address assigned to the VM by the host OS.
+    * 
+    * @return set of all bcast addresses
+    */
+   public static Set<InetAddress> getBroadcastAddresses()
+   {
+       Set<InetAddress> bcastAddresses = new HashSet<InetAddress>();
+       Enumeration interfaces;
+       
+       try
+       {
+           interfaces = NetworkInterface.getNetworkInterfaces();
+           
+           while(interfaces.hasMoreElements())
+           {
+               NetworkInterface anInterface = (NetworkInterface)interfaces.nextElement();
+               
+               if(anInterface.isUp())
+               {
+                   Iterator it = anInterface.getInterfaceAddresses().iterator();
+                   while(it.hasNext())
+                   {
+                       InterfaceAddress anAddress = (InterfaceAddress)it.next();
+                       if((anAddress == null || anAddress.getAddress().isLinkLocalAddress()))
+                           continue;
+                       
+                       //System.out.println("Getting bcast address for " + anAddress);
+                       InetAddress abcast = anAddress.getBroadcast();
+                       if(abcast != null)
+                        bcastAddresses.add(abcast);
+                   }
+               }
+           }
+           
+       }
+       catch(Exception e)
+       {
+           e.printStackTrace();
+           System.out.println(e);
+       }
+       
+       return bcastAddresses;   
+   }
+
+}
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduTCPReceiverASenderB.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduTCPReceiverASenderB.java
new file mode 100644
index 0000000000000000000000000000000000000000..f1423e13aa820187bb97768b12fe9184fb41888d
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduTCPReceiverASenderB.java
@@ -0,0 +1,296 @@
+
+import java.io.*;
+import java.net.*;
+import java.util.*;
+
+import edu.nps.moves.dis.*;
+import edu.nps.moves.disutil.DisTime;
+
+/**
+ * Creates and sends ESPDUs in IEEE binary format. 
+ *
+ * @author DMcG
+ */
+public class AngelBlankEspduTCPReceiverASenderB
+{
+    public static final int NUMBER_TO_SEND = 5000;
+
+    public enum NetworkMode{UNICAST, MULTICAST, BROADCAST};
+
+    /** default multicast group we send on */
+    public static final String DEFAULT_MULTICAST_GROUP="239.1.2.3";
+    public static final int TCP_DESTINATION_PORT = 2999;
+    /** Port we send on */
+    public static final int DIS_DESTINATION_PORT = 2800;
+    
+/** Possible system properties, passed in via -Dattr=val
+     * networkMode: unicast, broadcast, multicast
+     * destinationIp: where to send the packet. If in multicast mode, this can be mcast.
+     *                To determine bcast destination IP, use an online bcast address
+     *                caclulator, for example http://www.remotemonitoringsystems.ca/broadcast.php
+     *                If in mcast mode, a join() will be done on the mcast address.
+     * port: port used for both source and destination.
+     * @param args 
+     */
+public static void main(String args[])
+{
+    /** an entity state pdu */
+    EntityStatePdu espdu = new EntityStatePdu();
+    MulticastSocket socket = null;
+    DisTime disTime = DisTime.getInstance();
+    int alternator = -1;
+    
+    // ICBM coordinates for my office
+//    double lat = 36.595517; 
+//    double lon = -121.877000;
+
+    
+    // Default settings. These are used if no system properties are set. 
+    // If system properties are passed in, these are over ridden.
+    int port = DIS_DESTINATION_PORT;
+    NetworkMode mode = NetworkMode.MULTICAST;
+    InetAddress destinationIp = null;
+    
+    try
+    {
+        destinationIp = InetAddress.getByName(DEFAULT_MULTICAST_GROUP);
+    }
+    catch(Exception e)
+    {
+        System.out.println(e + " Cannot create multicast address");
+        System.exit(0);
+    }
+    
+    // All system properties, passed in on the command line via -Dattribute=value
+    Properties systemProperties = System.getProperties();
+    
+    // IP address we send to
+    String destinationIpString = systemProperties.getProperty("destinationIp");
+    
+    // Port we send to, and local port we open the socket on
+    String portString = systemProperties.getProperty("port");
+    
+    // Network mode: unicast, multicast, broadcast
+    String networkModeString = systemProperties.getProperty("networkMode"); // unicast or multicast or broadcast
+        
+
+    // Set up a socket to send information
+    try
+    {
+ 
+        // Port we send to
+        if(portString != null)
+            port = Integer.parseInt(portString);
+        
+        socket = new MulticastSocket(DIS_DESTINATION_PORT);
+        
+        // Where we send packets to, the destination IP address
+        if(destinationIpString != null)
+        {
+            destinationIp = InetAddress.getByName(destinationIpString);
+        }
+
+        // Type of transport: unicast, broadcast, or multicast
+        if(networkModeString != null)
+        {
+            if(networkModeString.equalsIgnoreCase("unicast"))
+                mode = NetworkMode.UNICAST;
+            else if(networkModeString.equalsIgnoreCase("broadcast"))
+                mode = NetworkMode.BROADCAST;
+            else if(networkModeString.equalsIgnoreCase("multicast"))
+            {
+                mode = NetworkMode.MULTICAST;
+                if(!destinationIp.isMulticastAddress())
+                {
+                    throw new RuntimeException("Sending to multicast address, but destination address " + destinationIp.toString() + "is not multicast");
+                }
+                
+                socket.joinGroup(destinationIp);
+                
+            }
+        } // end networkModeString
+    }
+    catch(Exception e)
+    {
+        System.out.println("Unable to initialize networking. Exiting.");
+        System.out.println(e);
+        System.exit(-1);
+    }
+
+    try
+    {
+        //int connectionCount = 0;
+        ServerSocket serverSocket = new ServerSocket(TCP_DESTINATION_PORT);
+
+        while(true){
+            try
+            {
+                Socket clientConnection = serverSocket.accept();
+                System.out.println("RA SB received TCP connection.");
+                InputStream is = clientConnection.getInputStream();
+                InputStreamReader isr = new InputStreamReader(is);
+                BufferedReader br = new BufferedReader(isr);
+                System.out.println("RA SB waiting to readline.");
+                int entitySite = Integer.parseInt(br.readLine());
+                int entityApplication = Integer.parseInt(br.readLine());
+                int entityEntity = Integer.parseInt(br.readLine());
+                short entityEntityKind = Short.parseShort(br.readLine());
+                int entityCountry = Integer.parseInt(br.readLine());
+                short entityDomain = Short.parseShort(br.readLine());
+                short entityCategory = Short.parseShort(br.readLine());
+                short entitySubcategory = Short.parseShort(br.readLine());
+                short entitySpec = Short.parseShort(br.readLine());
+                System.out.println("RA SB reading complete.");
+                // Initialize values in the Entity State PDU object. The exercise ID is 
+                // a way to differentiate between different virtual worlds on one network.
+                // Note that some values (such as the PDU type and PDU family) are set
+                // automatically when you create the ESPDU.
+                espdu.setExerciseID((short)1);
+
+                // The EID is the unique identifier for objects in the world. This 
+                // EID should match up with the ID for the object specified in the 
+                // VMRL/x3d/virtual world.
+                
+                
+                EntityID eid = espdu.getEntityID();
+                eid.setSite(entitySite);  // 0 is apparently not a valid site number, per the spec
+                eid.setApplication(entityApplication); 
+                eid.setEntity(entityEntity);
+
+                // Set the entity type. SISO has a big list of enumerations, so that by
+                // specifying various numbers we can say this is an M1A2 American tank,
+                // the USS Enterprise, and so on. We'll make this a tank. There is a 
+                // separate project elsehwhere in this project that implements DIS 
+                // enumerations in C++ and Java, but to keep things simple we just use
+                // numbers here.
+                EntityType entityType = espdu.getEntityType();
+                entityType.setEntityKind(entityEntityKind);      // Platform (vs lifeform, munition, sensor, etc.)
+                entityType.setCountry(entityCountry);              // USA
+                entityType.setDomain(entityDomain);          // AIR (vs air, surface, subsurface, space)
+                entityType.setCategory(entityCategory);        // Tank
+                entityType.setSubcategory(entitySubcategory);     // M1 Abrams
+                entityType.setSpec(entitySpec);            // M1A2 Abrams
+
+
+                Set<InetAddress> bcastAddresses = getBroadcastAddresses();
+                // Loop through sending N ESPDUs
+                
+                
+                
+                int ts = disTime.getDisAbsoluteTimestamp();
+                espdu.setTimestamp(ts);
+
+//                double direction = Math.pow((double)(-1.0), (double)(idx));
+//                lon = lon + (direction * 0.00006);
+//                System.out.println(lon);
+//
+//                double disCoordinates[] = CoordinateConversions.getXYZfromLatLonDegrees(lat, lon, 1.0);
+//                Vector3Double location = espdu.getEntityLocation();
+//                location.setX(disCoordinates[0]);
+//                location.setY(disCoordinates[1]);
+//                location.setZ(disCoordinates[2]);
+//                System.out.println("lat, lon:" + lat + ", " + lon);
+//                System.out.println("DIS coord:" + disCoordinates[0] + ", " + disCoordinates[1] + ", " + disCoordinates[2]);
+
+                ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                DataOutputStream dos = new DataOutputStream(baos);
+                espdu.marshal(dos);
+
+                //FirePdu fire = new FirePdu();
+                //byte[] fireArray = fire.marshal();
+
+                // The byte array here is the packet in DIS format. We put that into a 
+                // datagram and send it.
+                byte[] data = baos.toByteArray();
+                DatagramPacket packet = new DatagramPacket(data, data.length, InetAddress.getByName(DEFAULT_MULTICAST_GROUP), DIS_DESTINATION_PORT);
+                socket.send(packet);
+                
+                /**bcastAddresses = getBroadcastAddresses();
+                Iterator it = bcastAddresses.iterator();
+                while(it.hasNext())
+                {
+                   InetAddress bcast = (InetAddress)it.next();
+                   System.out.println("RA SB Sending bcast to " + bcast + "EntityID: " + eid.getEntity());
+                   DatagramPacket packet = new DatagramPacket(data, data.length, bcast, DIS_DESTINATION_PORT);
+                   socket.send(packet);
+                   //packet = new DatagramPacket(fireArray, fireArray.length, bcast, DIS_DESTINATION_PORT);
+                   //socket.send(packet);
+                }**/
+
+                // Send every 1 sec. Otherwise this will be all over in a fraction of a second.
+                //Thread.sleep(3000);
+
+//                location = espdu.getEntityLocation();          
+                System.out.println(" EID=[" + eid.getSite() + "," + eid.getApplication() + "," + eid.getEntity() + "]");
+//                System.out.println(" DIS coordinates location=[" + location.getX() + "," + location.getY() + "," + location.getZ() + "]");
+    //            double c[] = {location.getX(), location.getY(), location.getZ()};
+    //            double lla[] = CoordinateConversions.xyzToLatLonDegrees(c);
+    //            System.out.println(" Location (lat/lon/alt): [" + lla[0] + ", " + lla[1] + ", " + lla[2] + "]");
+                clientConnection.close();
+            }
+            catch(Exception e)
+            {
+                System.out.println(e);
+            }
+        }
+    }
+    catch(Exception e)
+    {
+        System.out.println(e);
+    }
+        
+}
+
+ /**
+    * A number of sites get all snippy about using 255.255.255.255 for a bcast
+    * address; it trips their security software and they kick you off their 
+    * network. (Comcast, NPS.) This determines the bcast address for all
+    * connected interfaces, based on the IP and subnet mask. If you have
+    * a dual-homed host it will return a bcast address for both. If you have
+    * some VMs running on your host this will pick up the addresses for those
+    * as well--eg running VMWare on your laptop with a local IP this will
+    * also pick up a 192.168 address assigned to the VM by the host OS.
+    * 
+    * @return set of all bcast addresses
+    */
+   public static Set<InetAddress> getBroadcastAddresses()
+   {
+       Set<InetAddress> bcastAddresses = new HashSet<InetAddress>();
+       Enumeration interfaces;
+       
+       try
+       {
+           interfaces = NetworkInterface.getNetworkInterfaces();
+           
+           while(interfaces.hasMoreElements())
+           {
+               NetworkInterface anInterface = (NetworkInterface)interfaces.nextElement();
+               
+               if(anInterface.isUp())
+               {
+                   Iterator it = anInterface.getInterfaceAddresses().iterator();
+                   while(it.hasNext())
+                   {
+                       InterfaceAddress anAddress = (InterfaceAddress)it.next();
+                       if((anAddress == null || anAddress.getAddress().isLinkLocalAddress()))
+                           continue;
+                       
+                       //System.out.println("Getting bcast address for " + anAddress);
+                       InetAddress abcast = anAddress.getBroadcast();
+                       if(abcast != null)
+                        bcastAddresses.add(abcast);
+                   }
+               }
+           }
+           
+       }
+       catch(Exception e)
+       {
+           e.printStackTrace();
+           System.out.println(e);
+       }
+       
+       return bcastAddresses;   
+   }
+
+}
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduTCPReceiverBSenderA.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduTCPReceiverBSenderA.java
new file mode 100644
index 0000000000000000000000000000000000000000..a0eb8fa25cf0729f95a51b83ee0911723617b400
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduTCPReceiverBSenderA.java
@@ -0,0 +1,296 @@
+
+import java.io.*;
+import java.net.*;
+import java.util.*;
+
+import edu.nps.moves.dis.*;
+import edu.nps.moves.disutil.DisTime;
+
+/**
+ * Creates and sends ESPDUs in IEEE binary format. 
+ *
+ * @author DMcG
+ */
+public class AngelBlankEspduTCPReceiverBSenderA
+{
+    public static final int NUMBER_TO_SEND = 5000;
+
+    public enum NetworkMode{UNICAST, MULTICAST, BROADCAST};
+
+    /** default multicast group we send on */
+    public static final String DEFAULT_MULTICAST_GROUP="239.1.2.4";
+    public static final int TCP_DESTINATION_PORT = 2998;
+    /** Port we send on */
+    public static final int DIS_DESTINATION_PORT = 3000;
+    
+/** Possible system properties, passed in via -Dattr=val
+     * networkMode: unicast, broadcast, multicast
+     * destinationIp: where to send the packet. If in multicast mode, this can be mcast.
+     *                To determine bcast destination IP, use an online bcast address
+     *                caclulator, for example http://www.remotemonitoringsystems.ca/broadcast.php
+     *                If in mcast mode, a join() will be done on the mcast address.
+     * port: port used for both source and destination.
+     * @param args 
+     */
+public static void main(String args[])
+{
+    /** an entity state pdu */
+    EntityStatePdu espdu = new EntityStatePdu();
+    MulticastSocket socket = null;
+    DisTime disTime = DisTime.getInstance();
+    int alternator = -1;
+    
+    // ICBM coordinates for my office
+//    double lat = 36.595517; 
+//    double lon = -121.877000;
+
+    
+    // Default settings. These are used if no system properties are set. 
+    // If system properties are passed in, these are over ridden.
+    int port = DIS_DESTINATION_PORT;
+    NetworkMode mode = NetworkMode.MULTICAST;
+    InetAddress destinationIp = null;
+    
+    try
+    {
+        destinationIp = InetAddress.getByName(DEFAULT_MULTICAST_GROUP);
+    }
+    catch(Exception e)
+    {
+        System.out.println(e + " Cannot create multicast address");
+        System.exit(0);
+    }
+    
+    // All system properties, passed in on the command line via -Dattribute=value
+    Properties systemProperties = System.getProperties();
+    
+    // IP address we send to
+    String destinationIpString = systemProperties.getProperty("destinationIp");
+    
+    // Port we send to, and local port we open the socket on
+    String portString = systemProperties.getProperty("port");
+    
+    // Network mode: unicast, multicast, broadcast
+    String networkModeString = systemProperties.getProperty("networkMode"); // unicast or multicast or broadcast
+        
+
+    // Set up a socket to send information
+    try
+    {
+ 
+        // Port we send to
+        if(portString != null)
+            port = Integer.parseInt(portString);
+        
+        socket = new MulticastSocket(DIS_DESTINATION_PORT);
+        
+        // Where we send packets to, the destination IP address
+        if(destinationIpString != null)
+        {
+            destinationIp = InetAddress.getByName(destinationIpString);
+        }
+
+        // Type of transport: unicast, broadcast, or multicast
+        if(networkModeString != null)
+        {
+            if(networkModeString.equalsIgnoreCase("unicast"))
+                mode = NetworkMode.UNICAST;
+            else if(networkModeString.equalsIgnoreCase("broadcast"))
+                mode = NetworkMode.BROADCAST;
+            else if(networkModeString.equalsIgnoreCase("multicast"))
+            {
+                mode = NetworkMode.MULTICAST;
+                if(!destinationIp.isMulticastAddress())
+                {
+                    throw new RuntimeException("Sending to multicast address, but destination address " + destinationIp.toString() + "is not multicast");
+                }
+                
+                socket.joinGroup(destinationIp);
+                
+            }
+        } // end networkModeString
+    }
+    catch(Exception e)
+    {
+        System.out.println("Unable to initialize networking. Exiting.");
+        System.out.println(e);
+        System.exit(-1);
+    }
+
+    try
+    {
+        //int connectionCount = 0;
+        ServerSocket serverSocket = new ServerSocket(TCP_DESTINATION_PORT);
+
+        while(true){
+            try
+            {
+                Socket clientConnection = serverSocket.accept();
+                System.out.println("RA SB received TCP connection.");
+                InputStream is = clientConnection.getInputStream();
+                InputStreamReader isr = new InputStreamReader(is);
+                BufferedReader br = new BufferedReader(isr);
+                System.out.println("RA SB waiting to readline.");
+                int entitySite = Integer.parseInt(br.readLine());
+                int entityApplication = Integer.parseInt(br.readLine());
+                int entityEntity = Integer.parseInt(br.readLine());
+                short entityEntityKind = Short.parseShort(br.readLine());
+                int entityCountry = Integer.parseInt(br.readLine());
+                short entityDomain = Short.parseShort(br.readLine());
+                short entityCategory = Short.parseShort(br.readLine());
+                short entitySubcategory = Short.parseShort(br.readLine());
+                short entitySpec = Short.parseShort(br.readLine());
+                System.out.println("RA SB reading complete.");
+                // Initialize values in the Entity State PDU object. The exercise ID is 
+                // a way to differentiate between different virtual worlds on one network.
+                // Note that some values (such as the PDU type and PDU family) are set
+                // automatically when you create the ESPDU.
+                espdu.setExerciseID((short)1);
+
+                // The EID is the unique identifier for objects in the world. This 
+                // EID should match up with the ID for the object specified in the 
+                // VMRL/x3d/virtual world.
+                
+                
+                EntityID eid = espdu.getEntityID();
+                eid.setSite(entitySite);  // 0 is apparently not a valid site number, per the spec
+                eid.setApplication(entityApplication); 
+                eid.setEntity(entityEntity);
+
+                // Set the entity type. SISO has a big list of enumerations, so that by
+                // specifying various numbers we can say this is an M1A2 American tank,
+                // the USS Enterprise, and so on. We'll make this a tank. There is a 
+                // separate project elsehwhere in this project that implements DIS 
+                // enumerations in C++ and Java, but to keep things simple we just use
+                // numbers here.
+                EntityType entityType = espdu.getEntityType();
+                entityType.setEntityKind(entityEntityKind);      // Platform (vs lifeform, munition, sensor, etc.)
+                entityType.setCountry(entityCountry);              // USA
+                entityType.setDomain(entityDomain);          // AIR (vs air, surface, subsurface, space)
+                entityType.setCategory(entityCategory);        // Tank
+                entityType.setSubcategory(entitySubcategory);     // M1 Abrams
+                entityType.setSpec(entitySpec);            // M1A2 Abrams
+
+
+                //Set<InetAddress> bcastAddresses = getBroadcastAddresses();
+                // Loop through sending N ESPDUs
+                
+                
+                
+                int ts = disTime.getDisAbsoluteTimestamp();
+                espdu.setTimestamp(ts);
+
+//                double direction = Math.pow((double)(-1.0), (double)(idx));
+//                lon = lon + (direction * 0.00006);
+//                System.out.println(lon);
+//
+//                double disCoordinates[] = CoordinateConversions.getXYZfromLatLonDegrees(lat, lon, 1.0);
+//                Vector3Double location = espdu.getEntityLocation();
+//                location.setX(disCoordinates[0]);
+//                location.setY(disCoordinates[1]);
+//                location.setZ(disCoordinates[2]);
+//                System.out.println("lat, lon:" + lat + ", " + lon);
+//                System.out.println("DIS coord:" + disCoordinates[0] + ", " + disCoordinates[1] + ", " + disCoordinates[2]);
+
+                ByteArrayOutputStream baos = new ByteArrayOutputStream();
+                DataOutputStream dos = new DataOutputStream(baos);
+                espdu.marshal(dos);
+
+                //FirePdu fire = new FirePdu();
+                //byte[] fireArray = fire.marshal();
+
+                // The byte array here is the packet in DIS format. We put that into a 
+                // datagram and send it.
+                byte[] data = baos.toByteArray();
+                DatagramPacket packet = new DatagramPacket(data, data.length, InetAddress.getByName(DEFAULT_MULTICAST_GROUP), DIS_DESTINATION_PORT);
+                socket.send(packet);
+                
+                /**bcastAddresses = getBroadcastAddresses();
+                Iterator it = bcastAddresses.iterator();
+                while(it.hasNext())
+                {
+                   InetAddress bcast = (InetAddress)it.next();
+                   System.out.println("RA SB Sending bcast to " + bcast + "EntityID: " + eid.getEntity());
+                   DatagramPacket packet = new DatagramPacket(data, data.length, bcast, DIS_DESTINATION_PORT);
+                   socket.send(packet);
+                   //packet = new DatagramPacket(fireArray, fireArray.length, bcast, DIS_DESTINATION_PORT);
+                   //socket.send(packet);
+                }**/
+
+                // Send every 1 sec. Otherwise this will be all over in a fraction of a second.
+                //Thread.sleep(3000);
+
+//                location = espdu.getEntityLocation();          
+                System.out.println(" EID=[" + eid.getSite() + "," + eid.getApplication() + "," + eid.getEntity() + "]");
+//                System.out.println(" DIS coordinates location=[" + location.getX() + "," + location.getY() + "," + location.getZ() + "]");
+    //            double c[] = {location.getX(), location.getY(), location.getZ()};
+    //            double lla[] = CoordinateConversions.xyzToLatLonDegrees(c);
+    //            System.out.println(" Location (lat/lon/alt): [" + lla[0] + ", " + lla[1] + ", " + lla[2] + "]");
+                clientConnection.close();
+            }
+            catch(Exception e)
+            {
+                System.out.println(e);
+            }
+        }
+    }
+    catch(Exception e)
+    {
+        System.out.println(e);
+    }
+        
+}
+
+ /**
+    * A number of sites get all snippy about using 255.255.255.255 for a bcast
+    * address; it trips their security software and they kick you off their 
+    * network. (Comcast, NPS.) This determines the bcast address for all
+    * connected interfaces, based on the IP and subnet mask. If you have
+    * a dual-homed host it will return a bcast address for both. If you have
+    * some VMs running on your host this will pick up the addresses for those
+    * as well--eg running VMWare on your laptop with a local IP this will
+    * also pick up a 192.168 address assigned to the VM by the host OS.
+    * 
+    * @return set of all bcast addresses
+    */
+   public static Set<InetAddress> getBroadcastAddresses()
+   {
+       Set<InetAddress> bcastAddresses = new HashSet<InetAddress>();
+       Enumeration interfaces;
+       
+       try
+       {
+           interfaces = NetworkInterface.getNetworkInterfaces();
+           
+           while(interfaces.hasMoreElements())
+           {
+               NetworkInterface anInterface = (NetworkInterface)interfaces.nextElement();
+               
+               if(anInterface.isUp())
+               {
+                   Iterator it = anInterface.getInterfaceAddresses().iterator();
+                   while(it.hasNext())
+                   {
+                       InterfaceAddress anAddress = (InterfaceAddress)it.next();
+                       if((anAddress == null || anAddress.getAddress().isLinkLocalAddress()))
+                           continue;
+                       
+                       //System.out.println("Getting bcast address for " + anAddress);
+                       InetAddress abcast = anAddress.getBroadcast();
+                       if(abcast != null)
+                        bcastAddresses.add(abcast);
+                   }
+               }
+           }
+           
+       }
+       catch(Exception e)
+       {
+           e.printStackTrace();
+           System.out.println(e);
+       }
+       
+       return bcastAddresses;   
+   }
+
+}
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ListenerTcp.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ListenerTcp.java
new file mode 100644
index 0000000000000000000000000000000000000000..670c89af6da8c87064a5e22934fefa7b0ba8e292
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ListenerTcp.java
@@ -0,0 +1,52 @@
+
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.ServerSocket;
+import java.net.Socket;
+
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+/**
+ *
+ * @author cs2017
+ */
+public class ListenerTcp implements Runnable {
+    
+    private int port;
+    
+    public ListenerTcp(int port){
+        this.port = port;
+    }
+
+    public void run() {
+        System.out.println("TCP Listener Activated on port: " + port);
+        try {
+        ServerSocket serverSocket = new ServerSocket(port);
+        while(true){
+            Socket clientConnection = serverSocket.accept();
+            InputStream is = clientConnection.getInputStream();
+            InputStreamReader isr = new InputStreamReader(is);
+            BufferedReader br = new BufferedReader(isr);
+            
+            String serverMessage = br.readLine();
+            System.out.println("The message the client sent was " + serverMessage);
+                
+            clientConnection.close();  
+            }
+        }
+        catch(Exception e)
+        {
+            System.out.println(e);
+        }
+    }
+
+    public static void main(String args[]) {
+        (new Thread(new ListenerTcp())).start();
+    }
+
+}