diff --git a/assignments/src/MV3500Cohort2021JulySeptember/homework3/HittnerNick3.java b/assignments/src/MV3500Cohort2021JulySeptember/homework3/HittnerNick3.java
deleted file mode 100644
index d803104cf2a067a4c1729c7c1913fa38a28877b4..0000000000000000000000000000000000000000
--- a/assignments/src/MV3500Cohort2021JulySeptember/homework3/HittnerNick3.java
+++ /dev/null
@@ -1,388 +0,0 @@
-
-package MV3500Cohort2021JulySeptember.homework3.HittnerNick;
-
-import edu.nps.moves.dis7.enumerations.VariableRecordType;
-import edu.nps.moves.dis7.pdus.CommentPdu;
-import edu.nps.moves.dis7.pdus.EntityID;
-import edu.nps.moves.dis7.pdus.EntityStatePdu;
-import edu.nps.moves.dis7.pdus.FirePdu;
-import edu.nps.moves.dis7.pdus.Pdu;
-import edu.nps.moves.dis7.utilities.DisThreadedNetworkInterface;
-import edu.nps.moves.dis7.utilities.PduFactory;
-import edu.nps.moves.dis7.utilities.stream.PduRecorder;
-import java.util.ArrayList;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-/** The purpose of this program is to provide an easily modifiable example simulation program
- * that includes DIS-capable entities doing tasks and reporting them to the network.
- * Default settings include PDU recording turned on by default.
- */
-public class HittnerNick3
-{
- private boolean verboseComments = true;
- static final String NETWORK_ADDRESS_DEFAULT = "239.1.2.3";
- static final int NETWORK_PORT_DEFAULT = 3000;
- static String networkAddress = NETWORK_ADDRESS_DEFAULT;
- static int networkPort = NETWORK_PORT_DEFAULT;
- String DEFAULT_OUTPUT_DIRECTORY = "./pduLog";
-
- /**
- * This runSimulationLoops() method is for you, a
- * programmer-modifiable method for defining and running a new simulation of interest.
- * Welcome! Other parts of this program handle bookkeeping and plumbing tasks so that
- * you can focus on your model entities and activities.
- * Expandable support includes DIS EntityStatePdu, FirePdu and CommentPdu all available for
- * modification and sending in a simulation loop.
- * Continuous improvement efforts seek to make this program as easy and straightforward
- * as possible for DIS simulationists to use and adapt.
- * All of the other methods are setup, teardown and configuration that you may find
- * interesting, even helpful, but don't really have to worry about.
- */
- @SuppressWarnings("SleepWhileInLoop") // yes we do that
- public void runSimulationLoops ()
- {
- try
- {
- /** seconds for real-time execution (not simulation time, which may or may not be the same) */
- final double SIMULATION_LOOP_DURATION_SECONDS = 1.0;
- final int SIMULATION_MAX_LOOP_COUNT = 10; // be deliberate out out there! also avoid infinite loops.
- int simulationLoopCount = 0; // variable, initialized at 0
- boolean simulationComplete = false; // sentinel variable as termination condition,, are we done yet?
-
- // TODO reset clock to zero each time for consistent outputs
-
- // Your model setup: define participants. who's who in this zoo?
- // Assuming you keep track of entity objects... here is some support for for Entity 1.
-
- // create PDU objects and set their values.
- EntityID entityID_1 = new EntityID();
- entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3); // made-up example ID;
-
- EntityID entityID_2 = new EntityID();
- entityID_1.setSiteID(1).setApplicationID(2).setEntityID(4); // made-up example ID;
-
- EntityStatePdu entityStatePdu_1 = pduFactory.makeEntityStatePdu();
- entityStatePdu_1.setEntityID(entityID_1);
-
- EntityStatePdu entityStatePdu_2 = pduFactory.makeEntityStatePdu();
- entityStatePdu_2.setEntityID(entityID_2);
-
-
- FirePdu firePdu_1 = pduFactory.makeFirePdu(); // for entity 1 first weapon (if any)
- FirePdu firePdu_2 = pduFactory.makeFirePdu(); // for entity 2 first weapon (if any)
- // should we customize this munition? what is it for your simulation?
-
- // TODO simulation management PDUs for startup, planning to design special class support
-
- // loop the simulation while allowed, programmer can set additional conditions to break out and finish
- while (simulationLoopCount < SIMULATION_MAX_LOOP_COUNT) // are we done yet?
- {
- simulationLoopCount++; // good practice: increment loop counter as first action in that loop
-
- // =============================================================================================
- // * your own simulation code starts here! *
- // =============================================================================================
-
- // are there any other variables to modify at the beginning of your loop?
-
- // compute a track, update an ESPDU, whatever it is that your model is doing...
-
- // Where is my entity? Insert changes in position; this sample only changes X position.
- entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() + 1.0); // 1m per timestep
- entityStatePdu_2.getEntityLocation().setX(entityStatePdu_2.getEntityLocation().getX() + 1.0); // 1m per timestep
-
- // decide whether to fire, and then update the firePdu. Hmmm, you might want a target to shoort at!
- firePdu_1.setLocationInWorldCoordinates(entityStatePdu_1.getEntityLocation());
- firePdu_2.setLocationInWorldCoordinates(entityStatePdu_2.getEntityLocation());
-
- // etc. etc. your code goes here for your simulation of interest
-
- // something happens between my simulation entities, la de da de da...
- System.out.println ("FirePdu 1 & 2");
-
-
- // make your reports: narrative code for CommentPdu here (set all to empty strings to avoid sending)
- narrativeMessage1 = "Fire PDU 1 & 2 Example";
- narrativeMessage2 = "runSimulation() loop " + simulationLoopCount;
- narrativeMessage3 = ""; // intentionally blank for testing
-
- // your loop termination condition goes here
- if (simulationLoopCount > 4) // for example
- {
- simulationComplete = true;
- }
- // =============================================================================================
- // * your own simulation code is finished here! *
- // =============================================================================================
-
- // staying synchronized with timestep: wait duration for elapsed time in this loop
- // Thread.sleep needs a (long) parameter for milliseconds, which are clumsy to use sometimes
- Thread.sleep((long)(SIMULATION_LOOP_DURATION_SECONDS * 1000)); // seconds * (1000 msec/sec) = milliseconds
- System.out.println ("... [Pausing for " + SIMULATION_LOOP_DURATION_SECONDS + " seconds]");
-
- // OK now send the status PDUs for this loop, and then continue
- System.out.println ("sending PDUs for simulation step " + simulationLoopCount + ", monitor loopback to confirm sent");
- sendAllPdusForLoopTimestep(entityStatePdu_1, firePdu_1, timeStepComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
-
- sendSinglePdu(entityStatePdu_2); // me too i.e. 2!
- System.out.println ("... [PDUs successfully sent for this loop]");
-
- // ===============================
- // loop now finished, check whether to terminate if simulation complete, otherwise continue
- if (simulationComplete || (simulationLoopCount > 10000)) // for example; including fail-safe condition is good
- {
- System.out.println ("... [Termination condition met, simulationComplete=" + simulationComplete + "]"); // ", final loopCount=" + loopCount +
- break;
- }
- } // end of simulation loop
-
- narrativeMessage2 = "runSimulation() completed successfully"; // all done
- sendCommentPdu(narrativeComment, narrativeMessage1, narrativeMessage2, narrativeMessage3);
- System.out.println ("... [final CommentPdu successfully sent for simulation]");
- // TODO simulation management PDUs
- }
- catch (InterruptedException iex) // handle any exception that your code might choose to provoke!
- {
- Logger.getLogger(HittnerNick3.class.getName()).log(Level.SEVERE, null, iex);
- }
- }
- /* **************************** infrastructure code, modification is seldom needed ************************* */
-
- String narrativeMessage1 = new String();
- String narrativeMessage2 = new String();
- String narrativeMessage3 = new String();
-
- /* VariableRecordType enumerations have potential use with CommentPdu logs */
- /* TODO contrast to EntityType */
- VariableRecordType descriptionComment = VariableRecordType.DESCRIPTION;
- VariableRecordType narrativeComment = VariableRecordType.COMPLETE_EVENT_REPORT;
- VariableRecordType statusComment = VariableRecordType.APPLICATION_STATUS;
- VariableRecordType timeStepComment = VariableRecordType.APPLICATION_TIMESTEP;
- VariableRecordType otherComment = VariableRecordType.OTHER;
-
- /**
- * Output prefix to identify this class, helps with logging
- */
- private final static String TRACE_PREFIX = "[" + HittnerNick3.class.getName() + "] ";
-
- // class variables
- PduFactory pduFactory = new PduFactory();
- DisThreadedNetworkInterface disNetworkInterface;
- DisThreadedNetworkInterface.PduListener pduListener;
- Pdu receivedPdu;
- PduRecorder pduRecorder;
-
- /**
- * Constructor design goal: additional built-in initialization conveniences can go here
- * to keep student efforts focused on the runSimulation() method.
- */
- public HittnerNick3()
- {
- // Constructor is under consideration. Constructor is not currently needed.
- }
-
- /**
- * Utility Constructor that allows your example simulation program to override default network address and port
- * @param address network address to use
- * @param port corresponding network port to use
- */
- public HittnerNick3(String address, int port)
- {
- setNetworkAddress(address);
-
- setNetworkPort(port);
- }
-
- /**
- * @return the networkAddress
- */
- public String getNetworkAddress()
- {
- return networkAddress;
- }
-
- /**
- * @param newNetworkAddress the networkAddress to set
- */
- public final void setNetworkAddress(String newNetworkAddress)
- {
- HittnerNick3.networkAddress = newNetworkAddress;
- }
-
- /**
- * @return the networkPort
- */
- public int getNetworkPort()
- {
- return networkPort;
- }
-
- /**
- * @param newNetworkPort the networkPort to set
- */
- public final void setNetworkPort(int newNetworkPort)
- {
- HittnerNick3.networkPort = newNetworkPort;
- }
-
- /**
- * Initialize network interface, choosing best available network interface
- */
- public void setUpNetworkInterface()
- {
- disNetworkInterface = new DisThreadedNetworkInterface(getNetworkAddress(), getNetworkPort());
- disNetworkInterface.setDescriptor ("HittnerNick3 pdu looping");
-
- System.out.println("Network confirmation:" +
- " address=" + disNetworkInterface.getAddress()+ // disNetworkInterface.getMulticastGroup() +
- " port=" + disNetworkInterface.getPort()); // + disNetworkInterface.getDisPort());
- pduListener = (Pdu newPdu) -> {
- receivedPdu = newPdu;
- } /** Callback handler for listener */ ;
- disNetworkInterface.addListener(pduListener);
-
- String outputDirectory = DEFAULT_OUTPUT_DIRECTORY;
- System.out.println("Beginning pdu save to directory " + outputDirectory);
- pduRecorder = new PduRecorder(outputDirectory, getNetworkAddress(), getNetworkPort()); // assumes save
- pduRecorder.setDescriptor ("HittnerNick3 pduRecorder");
- pduRecorder.setVerbose(true);
- pduRecorder.start(); // begin running
- }
-
- /** All done, release network resources */
- public void tearDownNetworkInterface()
- {
- pduRecorder.stop();
-
- disNetworkInterface.removeListener(pduListener);
-
- disNetworkInterface.close();
-// disNetworkInterface.kill(); // renamed as close(), deprecated
-// disNetworkInterface = null; // making sure no possibility of zombie process remaining...
- }
-
- /**
- * Send a single Protocol Data Unit (PDU) of any type
- * @param pdu the pdu to send
- */
- private void sendSinglePdu(Pdu pdu)
- {
- try
- {
- disNetworkInterface.send(pdu);
- Thread.sleep(100); // TODO consider refactoring the wait logic and moving externally
- }
- catch (InterruptedException ex)
- {
- System.err.println(this.getClass().getName() + " Error sending PDU: " + ex.getLocalizedMessage());
- System.exit(1);
- }
- }
-
- /**
- * Send Comment PDU
- * @see <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/arguments.html">Passing Information to a Method or a Constructor</a> Arbitrary Number of Arguments
- * @param commentType enumeration value describing purpose of the narrative comment
- * @param comments String array of narrative comments
- */
- public void sendCommentPdu(VariableRecordType commentType,
- // vararg... variable-length set of String comments can optionally follow
- String... comments)
- {
- sendAllPdusForLoopTimestep (null, null, commentType, comments);
- }
-
- /**
- * Send EntityState, Fire, Comment PDUs that got updated for this loop, reflecting state of current simulation timestep.
- * @see <a href="https://docs.oracle.com/javase/tutorial/java/javaOO/arguments.html">Passing Information to a Method or a Constructor</a> Arbitrary Number of Arguments
- * @param entityStatePdu the ESPDU to send, if any
- * @param firePdu the FirePDU to send, if any
- * @param commentType enumeration value describing purpose of the narrative comment
- * @param comments String array of narrative comments
- */
- public void sendAllPdusForLoopTimestep(EntityStatePdu entityStatePdu,
- FirePdu firePdu,
- VariableRecordType commentType,
- // vararg... variable-length set of String comments can optionally follow
- String... comments)
- {
- if (entityStatePdu != null)
- sendSinglePdu(entityStatePdu);
-
- if (firePdu != null)
- sendSinglePdu(firePdu); // bang
-
- if ((comments != null) && (comments.length > 0))
- {
- ArrayList<String> newCommentsList = new ArrayList<>();
- for (String comment : comments)
- {
- if (!comment.isEmpty())
- {
- newCommentsList.add(comment); // OK found something to send
- }
- }
- if (!newCommentsList.isEmpty())
- {
- if (commentType == null)
- commentType = otherComment; // fallback value otherComment
- // now build the commentPdu from these string inputs, thus constructing a narrative entry
- CommentPdu commentPdu = pduFactory.makeCommentPdu(commentType, newCommentsList.toArray(new String[0])); // comments);
- sendSinglePdu(commentPdu);
- if (isVerboseComments())
- System.out.println("*** [Narrative comment sent: " + commentType.name() + "] " + newCommentsList.toString());
- }
- }
- }
-
- /**
- * Main method is first executed when a program instance is loaded.
- * @see <a href="https://docs.oracle.com/javase/tutorial/getStarted/application/index.html">Java Tutorials: A Closer Look at the "Hello World!" Application</a>
- * @param args command-line arguments are an array of optional String parameters that are passed from execution environment during invocation
- */
- public static void main(String[] args)
- {
- System.out.println(TRACE_PREFIX + "started...");
-
- HittnerNick3 thisProgram = new HittnerNick3(); // creates instance
-
- // initial execution: can handle args array of initialization arguments here
- if (args.length == 2)
- {
- if ((args[0] != null) && !args[0].isEmpty())
- thisProgram.setNetworkAddress(args[0]);
-
- if ((args[1] != null) && !args[1].isEmpty())
- thisProgram.setNetworkPort(Integer.parseInt(args[1]));
- }
- else if (args.length != 0)
- {
- System.err.println("Usage: " + thisProgram.getClass().getName() + " [address port]");
- System.exit(-1);
- }
- // OK here we go...
-
- thisProgram.setUpNetworkInterface();
-
- thisProgram.runSimulationLoops (); // ... your simulation execution code goes in there ...
-
- thisProgram.tearDownNetworkInterface(); // make sure no processes are left lingering
-
- System.out.println(TRACE_PREFIX + "complete."); // report successful completion
- }
-
- /**
- * @return whether verboseComments mode is enabled
- */
- public boolean isVerboseComments() {
- return verboseComments;
- }
-
- /**
- * @param newVerboseComments whether verboseComments mode is enabled
- */
- public void setVerboseComments(boolean newVerboseComments) {
- this.verboseComments = newVerboseComments;
- }
-}