diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverA.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverA.java
new file mode 100644
index 0000000000000000000000000000000000000000..1f815104f01f0d88ed010bd8b6b79bef5fca751c
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverA.java
@@ -0,0 +1,79 @@
+
+
+import java.net.*;
+import java.util.*;
+
+import edu.nps.moves.disutil.*;
+import edu.nps.moves.dis.*;
+
+/**
+ * Receives PDUs from the network in IEEE format.
+ *
+ * @author DMcG
+ * @version $Id:$
+ */
+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+ * somewhat outdated--PDUs can be larger--but this is a reasonable starting point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 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 {
+ // Create TCP Bridge
+ ServerSocket serverSocket = new ServerSocket(2999);
+
+
+
+ // Specify the socket to receive data
+ socket = new MulticastSocket(3000);
+ socket.setBroadcast(true);
+
+ address = InetAddress.getByName(GROUP);
+ socket.joinGroup(address);
+
+ // Loop infinitely, receiving datagrams
+ while (true) {
+ byte buffer[] = new byte[MAX_PDU_SIZE];
+ packet = new DatagramPacket(buffer, buffer.length);
+
+ socket.receive(packet);
+
+ 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();
+ 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
+
+ } // end while
+ } // End try
+ catch (Exception e) {
+
+ System.out.println(e);
+ }
+
+
+ } // end main
+} // end class
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverB.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverB.java
new file mode 100644
index 0000000000000000000000000000000000000000..06765cff1fb730a62a921e66532c29df7acf3549
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduReceiverB.java
@@ -0,0 +1,122 @@
+
+
+
+import java.net.*;
+import java.util.*;
+
+import edu.nps.moves.disutil.*;
+import edu.nps.moves.dis.*;
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.PrintStream;
+
+/**
+ * Receives PDUs from the network in IEEE format.
+ *
+ * @author DMcG
+ * @version $Id:$
+ */
+public class ABEspduReceiverB {
+
+ /** Max size of a PDU in binary format that we can receive. This is actually
+ * somewhat outdated--PDUs can be larger--but this is a reasonable starting point
+ */
+ public static final int MAX_PDU_SIZE = 8192;
+
+ 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(3101);
+ socket.setBroadcast(true);
+ 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);
+
+ address = InetAddress.getByName(GROUP);
+ socket.joinGroup(address);
+
+ // Loop infinitely, receiving datagrams
+ while (true) {
+ byte buffer[] = new byte[MAX_PDU_SIZE];
+ packet = new DatagramPacket(buffer, buffer.length);
+
+ socket.receive(packet);
+
+ //OutputStream os = clientConnection.getOutputStream();
+ // PrintStream ps = new PrintStream(os);
+ // connectionCount++;
+ // ps.println("This was written by the server");
+
+
+
+ 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);
+
+ 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();
+ 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
+
+ } // end while
+ } // End try
+ catch (Exception e) {
+
+ System.out.println(e);
+ }
+
+
+ } // end main
+} // end class
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderA.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderA.java
new file mode 100644
index 0000000000000000000000000000000000000000..700c93ecee0f23b30126276235134edcaa1e02bc
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderA.java
@@ -0,0 +1,324 @@
+
+
+
+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 ABEspduSenderA
+{
+ 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 = 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(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;
+ }
+
+}
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderB.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderB.java
new file mode 100644
index 0000000000000000000000000000000000000000..e488ead683af89f2bed4f937ba3d162110e698a2
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/ABEspduSenderB.java
@@ -0,0 +1,331 @@
+
+
+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
+ {
+ 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;
+ }
+
+}
diff --git a/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderB.java b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderB.java
new file mode 100644
index 0000000000000000000000000000000000000000..197d9c29565c6241152efe34d80a02c9d2683e05
--- /dev/null
+++ b/projects/Assignments/FinalProjects/2018March/AngelopoulosBlankenbeker/AngelBlankEspduSenderB.java
@@ -0,0 +1,347 @@
+
+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;
+ }
+
+}