diff --git a/assignments/src/MV3500Cohort2023MarchJune/homework3/Hedgcorth/ExampleSimulationProgram.java b/assignments/src/MV3500Cohort2023MarchJune/homework3/Hedgcorth/ExampleSimulationProgram.java
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+package MV3500Cohort2023MarchJune.homework3.Hedgcorth;
+
+import edu.nps.moves.dis7.entities.swe.platform.surface._002Triton;
+import edu.nps.moves.dis7.entities.usa.platform.air.CH53ESuperStallion;
+import edu.nps.moves.dis7.enumerations.ForceID;
+import edu.nps.moves.dis7.enumerations.VariableRecordType;
+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.MunitionDescriptor;
+import edu.nps.moves.dis7.utilities.DisChannel;
+import edu.nps.moves.dis7.utilities.PduFactory;
+import java.time.LocalDateTime;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ *
+ * @author leahhedgcorth
+ */
+public class ExampleSimulationProgram {
+
+ /* **************************** infrastructure code, modification is seldom needed ************************* */
+
+ private String descriptor = this.getClass().getSimpleName();
+ /**
+ * DIS channel defined by network address/port combination includes multiple
+ * utility capabilities
+ */
+ protected DisChannel disChannel;
+ /**
+ * Factory object used to create new PDU instances
+ */
+ protected PduFactory pduFactory;
+
+ /**
+ * seconds per loop for real-time or simulation execution
+ */
+ private double simulationTimeStepDuration = 1.0; // seconds TODO encapsulate
+ /**
+ * initial simulation time in seconds
+ */
+ double simulationTimeInitial = 0.0;
+ /**
+ * current simulation time in seconds
+ */
+ double simulationTimeSeconds = simulationTimeInitial;
+ /**
+ * Maximum number of simulation loops
+ */
+ int MAX_LOOP_COUNT = 4;
+
+ String narrativeMessage1 = new String();
+ String narrativeMessage2 = new String();
+ String narrativeMessage3 = new String();
+
+ /**
+ * EntityID settings for entity 1
+ */
+ protected EntityID entityID_1 = new EntityID();
+ /**
+ * EntityID settings for entity 2
+ */
+ protected EntityID entityID_2 = new EntityID();
+ /**
+ * ESPDU for entity 1
+ */
+ protected EntityStatePdu entityStatePdu_1;
+ /**
+ * ESPDU for entity 2
+ */
+ protected EntityStatePdu entityStatePdu_2;
+ /**
+ * FirePdu for entity 1 first weapon (if any)
+ */
+ protected FirePdu firePdu_1a;
+ /**
+ * FirePdu for entity 1 second weapon (if any)
+ */
+ protected FirePdu firePdu_1b;
+ /**
+ * MunitionDescriptor for these weapons
+ */
+ protected MunitionDescriptor munitionDescriptor1;
+
+ /**
+ * Constructor to create an instance of this class. Design goal: additional
+ * built-in initialization conveniences can go here to keep your efforts
+ * focused on the runSimulation() method.
+ */
+ // base constructor is not invoked automatically by other constructors
+ // https://stackoverflow.com/questions/581873/best-way-to-handle-multiple-constructors-in-java
+ public ExampleSimulationProgram() {
+ initialize();
+ }
+
+ /**
+ * Constructor to create an instance of this class.
+ *
+ * @param newDescriptor describes this program, useful for logging and
+ * debugging
+ */
+ public ExampleSimulationProgram(String newDescriptor) {
+ descriptor = newDescriptor;
+ initialize();
+ }
+
+ /**
+ * 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 ExampleSimulationProgram(String address, int port) {
+ disChannel.setNetworkAddress(address);
+ disChannel.setNetworkPort(port);
+ initialize();
+ }
+
+ /**
+ * Initialize channel setup for OpenDis7 and report a test PDU
+ *
+ * @see initializeDisChannel
+ * @see initializeSimulationEntities
+ */
+ private void initialize() {
+ initializeDisChannel(); // must come first, uses PduFactory
+
+ initializeSimulationEntities(); // set unchanging parameters
+
+ disChannel.join(); // TODO further functionality expected
+
+ String timeStepMessage = "Simulation timestep duration " + getSimulationTimeStepDuration() + " seconds";
+ disChannel.sendCommentPdu(simulationTimeSeconds, DisChannel.COMMENTPDU_SIMULATION_TIMESTEP, timeStepMessage);
+ // additional constructor initialization can go here
+ }
+
+ /**
+ * Initialize channel setup for OpenDis7 and report a test PDU
+ */
+ private void initializeDisChannel() {
+ if (disChannel == null) {
+ disChannel = new DisChannel();
+ } else {
+ disChannel.printlnTRACE("*** warning, duplicate invocation of initializeDisChannel() ignored");
+ return;
+ }
+ pduFactory = disChannel.getPduFactory();
+ disChannel.setDescriptor(this.getClass().getSimpleName()); // ExampleSimulationProgram might be a superclass
+ disChannel.setUpNetworkInterface();
+ disChannel.printlnTRACE("just checking: disChannel.getNetworkAddress()=" + disChannel.getNetworkAddress()
+ + ", getNetworkPort()=" + disChannel.getNetworkPort());
+
+ disChannel.getPduRecorder().setVerbose(true);
+
+// disChannel.sendCommentPdu(VariableRecordType.OTHER, "ArrivalProcessOpenDis7 initialized"); // hello channel, debug
+ }
+
+ /**
+ * Get ready, get set... initialize simulation entities
+ */
+ public void initializeSimulationEntities() {
+ if (pduFactory == null) {
+ pduFactory = disChannel.getPduFactory();
+ }
+ entityStatePdu_1 = pduFactory.makeEntityStatePdu();
+ entityStatePdu_2 = pduFactory.makeEntityStatePdu();
+ firePdu_1a = pduFactory.makeFirePdu();
+ firePdu_1b = pduFactory.makeFirePdu();
+ munitionDescriptor1 = new MunitionDescriptor();
+
+ // 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.
+ // PDU objects are already declared and instances created, so now set their values.
+ entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3); // made-up example ID;
+ disChannel.addEntity(entityID_1);
+
+ entityID_2.setSiteID(1).setApplicationID(2).setEntityID(4); // made-up example ID;
+ disChannel.addEntity(entityID_2);
+ // TODO someday, use enumerations for sites as part of a SimulationManager object; e.g. is there a unique site triplet for MOVES Institute?
+
+ entityStatePdu_1.setEntityID(entityID_1);
+ entityStatePdu_1.setForceId(ForceID.FRIENDLY);
+// entityStatePdu_1.setEntityType(new _001Poseidon()); // note import statement above
+// entityStatePdu_1.setMarking("Entity #1");
+ entityStatePdu_1.setEntityType(new CH53ESuperStallion()); // note import statement at top
+ entityStatePdu_1.setMarking("Entity #53");
+ entityStatePdu_1.getMarkingString(); // use Netbeans Debug breakpoint here to check left justified...
+
+ entityStatePdu_2.setEntityID(entityID_2);
+ entityStatePdu_2.setForceId(ForceID.OPPOSING);
+ entityStatePdu_2.setEntityType(new _002Triton()); // note import statement above
+ entityStatePdu_2.setMarking("Entity #2");
+
+ // TODO how should we customize this munition? what are key parameters for your simulation?
+ // more is needed here by scenario authors...
+ munitionDescriptor1.setQuantity(1);
+ firePdu_1a.setDescriptor(munitionDescriptor1).setRange(1000.0f);
+ }
+
+ /**
+ * This runSimulationLoops() method is for you, a customizable
+ * programmer-modifiable code block 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 might do that
+ public void runSimulationLoops() {
+ try {
+ final int SIMULATION_MAX_LOOP_COUNT = 10; // be deliberate 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 Time for today's date and timestamp to zero, providing consistent outputs for each simulation run
+ String timeMessage = "Simulation time " + simulationTimeSeconds + " at LocalDateTime " + LocalDateTime.now();
+ disChannel.sendCommentPdu(simulationTimeSeconds, DisChannel.COMMENTPDU_TIME, timeMessage);
+ // TODO replace enumeration with disChannel.COMMENTPDU_TIME
+ // TODO fix VariableRecordType.TIME_AMP_DATE_VALID
+
+ // ===================================================================================================
+ // 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?
+ // are your reading any DIS PDUs from the network? check for them here
+ // 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
+
+ // decide whether to fire, and then update the firePdu. Hmmm, you might want a target to shoot at!
+ // 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("... My simulation just did something, no really...");
+ System.out.flush(); // make sure this arrives to user even if other threads somehow become deadlocked
+
+ // make your reports: narrative code for CommentPdu here (set all to empty strings to avoid sending)
+ narrativeMessage1 = "MV3500 ExampleSimulationProgram";
+ narrativeMessage2 = "runSimulation() loop " + simulationLoopCount;
+ narrativeMessage3 = ""; // intentionally blank for testing
+
+ // your loop termination condition goes here
+ if (simulationLoopCount > MAX_LOOP_COUNT) // 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) (getSimulationTimeStepDuration() * 1000)); // units of seconds * (1000 msec/sec) = milliseconds
+ System.out.println("... [Pausing for " + getSimulationTimeStepDuration() + " seconds]");
+
+ // OK now send the status PDUs for this loop, and then continue
+ System.out.println("... sending PDUs of interest for simulation step " + simulationLoopCount + ", monitor loopback to confirm sent");
+ System.out.flush();
+
+ // TODO set timesteps in PDUs
+ sendAllPdusForLoopTimestep(simulationTimeSeconds,
+ entityStatePdu_1,
+ firePdu_1a,
+ DisChannel.COMMENTPDU_APPLICATION_STATUS,
+ narrativeMessage1, narrativeMessage2, narrativeMessage3);
+ disChannel.sendSinglePdu(simulationTimeSeconds, entityStatePdu_2); // me too i.e. 2!
+
+ System.out.println("... [PDUs of interest successfully sent for this loop]");
+ System.out.flush();
+
+ // ===============================
+ // current 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("... [loop termination condition met, simulationComplete=" + simulationComplete + "]"); // ", final loopCount=" + loopCount +
+ System.out.flush();
+ break;
+ }
+ simulationTimeSeconds += getSimulationTimeStepDuration(); // good practice: increment simulationTime as lastst action in that loop
+
+ } // end of simulation loop, continue until done
+ // ===================================================================================================// ===================================================================================================// ===================================================================================================// ===================================================================================================
+
+ narrativeMessage2 = "runSimulation() completed successfully"; // all done, so tell everyone else on the channel
+ // TODO better javadoc needs to be autogenerated for VariableRecordType enumerations
+ disChannel.sendCommentPdu(DisChannel.COMMENTPDU_NARRATIVE, narrativeMessage1, narrativeMessage2, narrativeMessage3);
+ System.out.println("... [final=completion CommentPdu successfully sent for simulation]");
+
+ disChannel.leave(); // embedded SimulationManager is expected to send appropriate PDUs for entity, application shutdown
+ } catch (InterruptedException iex) // handle any exception that your code might choose to provoke!
+ {
+ Logger.getLogger(ExampleSimulationProgram.class.getSimpleName()).log(Level.SEVERE, null, iex);
+ }
+ }
+
+ /**
+ * Send EntityState, Fire, Comment PDUs that got updated for this loop,
+ * reflecting state of current simulation timestep.
+ *
+ * @param simTimeSeconds simulation time in second, applied to PDU as
+ * timestamp
+ * @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 PDU
+ * @param comments String array of narrative comments
+ * @see DisChannel // * @see DisTime // TODO find renamed version
+ * @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
+ */
+ public void sendAllPdusForLoopTimestep(double simTimeSeconds,
+ EntityStatePdu entityStatePdu,
+ FirePdu firePdu,
+ VariableRecordType commentType,
+ // vararg... variable-length set of String comments can optionally follow
+ String... comments) {
+ if (entityStatePdu != null) {
+ disChannel.sendSinglePdu(simTimeSeconds, entityStatePdu);
+ }
+
+ if (firePdu != null) {
+ disChannel.sendSinglePdu(simTimeSeconds, firePdu); // bang
+ }
+ disChannel.sendCommentPdu(simTimeSeconds, commentType, comments); // empty comments are filtered
+ }
+
+ /**
+ * Initial execution via main() method: handle args array of command-line
+ * initialization (CLI) arguments here
+ *
+ * @param args command-line parameters: network address and port
+ */
+ protected void handleArguments(String[] args) {
+ // initial execution: handle args array of initialization arguments here
+ if (args.length == 2) {
+ if ((args[0] != null) && !args[0].isEmpty()) {
+ thisProgram.disChannel.setNetworkAddress(args[0]);
+ }
+ if ((args[1] != null) && !args[1].isEmpty()) {
+ thisProgram.disChannel.setNetworkPort(Integer.parseInt(args[1]));
+ }
+ } else if (args.length != 0) {
+ System.err.println("Usage: " + thisProgram.getClass().getSimpleName() + " [address port]");
+ System.exit(-1);
+ }
+ }
+
+ /**
+ * Get simple descriptor (such as parent class name) for this network
+ * interface, used in trace statements
+ *
+ * @return simple descriptor name
+ */
+ public String getDescriptor() {
+ return descriptor;
+ }
+
+ /**
+ * Set new simple descriptor (such as parent class name) for this network
+ * interface, used in trace statements
+ *
+ * @param newDescriptor simple descriptor name for this interface
+ */
+ public void setDescriptor(String newDescriptor) {
+ if (newDescriptor == null) {
+ newDescriptor = "";
+ }
+ this.descriptor = newDescriptor;
+ }
+
+ /**
+ * parameter accessor method
+ *
+ * @return the simulationTimeStepDuration in seconds
+ */
+ public double getSimulationTimeStepDuration() {
+ return simulationTimeStepDuration;
+ }
+
+ /**
+ * parameter accessor method
+ *
+ * @param timeStepDurationSeconds the simulationTimeStepDuration in seconds
+ * to set
+ */
+ public void setSimulationTimeStepDuration(double timeStepDurationSeconds) {
+ this.simulationTimeStepDuration = timeStepDurationSeconds;
+ }
+
+ /**
+ * Locally instantiable copy of program, can be subclassed.
+ */
+ protected static ExampleSimulationProgram thisProgram;
+
+ /**
+ * 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 parameters: network address and port.
+ * Command-line arguments are an array of optional String parameters that
+ * are passed from execution environment during invocation
+ */
+ public static void main(String[] args) {
+ thisProgram = new ExampleSimulationProgram("test constructor"); // create instance of self within static main() method
+
+ thisProgram.disChannel.printlnTRACE("main() started...");
+
+ thisProgram.handleArguments(args); // process any command-line invocation arguments
+
+ thisProgram.runSimulationLoops(); // ... your simulation execution code goes in there ...
+
+ thisProgram.disChannel.tearDownNetworkInterface(); // make sure no processes are left lingering
+
+ thisProgram.disChannel.printlnTRACE("complete."); // report successful completion
+
+ System.exit(0); // ensure all threads and sockets released
+ }
+}