diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/BavlsikSimulationProgram.java b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/BavlsikSimulationProgram.java
new file mode 100644
index 0000000000000000000000000000000000000000..21463b4b64c6d4eb2a053c2a1898c19a55037271
--- /dev/null
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/BavlsikSimulationProgram.java
@@ -0,0 +1,413 @@
+/**
+ * Copyright (c) 2008-2023, MOVES Institute, Naval Postgraduate School (NPS). All rights reserved.
+ * This work is provided under a BSD open-source license, see project license.html or license.txt
+ * @author brutzman@nps.edu
+ */
+package MV3500Cohort2024JulySeptember.homework3.Bavlsik;
+
+import edu.nps.moves.dis7.entities.swe.platform.surface._001Poseidon;
+import edu.nps.moves.dis7.entities.swe.platform.surface._002Triton;
+import edu.nps.moves.dis7.enumerations.*;
+import edu.nps.moves.dis7.pdus.*;
+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;
+
+/** The purpose of this inheritable class is to provide an easily modifiable
+ * example simulation program that includes DIS-capable entities performing
+ * tasks of interest, and then reporting activity via PDUs to the network.
+ * Default program initialization includes PDU recording turned on by default.
+ * @see <a href="https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/blob/master/examples/src/OpenDis7Examples/ExampleSimulationProgramLog.txt" target="_blank">ExampleSimulationProgramLog.txt</a>
+ * @see <a href="https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/blob/master/examples/src/OpenDis7Examples/ExampleSimulationProgramPduCaptureLog.dislog" target="_blank">ExampleSimulationProgramPduCaptureLog.dislog</a>
+ * @see <a href="https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/blob/master/examples/src/OpenDis7Examples/ExampleSimulationProgramFlowDiagram.pdf" target="_blank">ExampleSimulationProgramFlowDiagram.pdf</a>
+ * @see <a href="https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/blob/master/examples/src/OpenDis7Examples/ExampleSimulationProgramWireshark.png" target="_blank">ExampleSimulationProgramWireshark.png</a>
+ * @see <a href="https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/blob/master/examples/src/OpenDis7Examples/ExampleSimulationProgramSequenceDiagram.png" target="_blank">ExampleSimulationProgramSequenceDiagram.png</a>
+ */
+public class BavlsikSimulationProgram
+{
+ /* **************************** 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;
+
+ // hey programmer, what other state do you want? this is a good place to declare it...
+
+ /**
+ * 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 BavlsikSimulationProgram()
+ {
+ initialize();
+ }
+ /**
+ * Constructor to create an instance of this class.
+ * @param newDescriptor describes this program, useful for logging and debugging
+ */
+ public BavlsikSimulationProgram(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 BavlsikSimulationProgram(String address, int port)
+ {
+ disChannel.setNetworkAddress (address);
+ disChannel.setNetworkPort (port);
+ disChannel.setVerboseComments (true); // TODO rename library method to disambiguate CommentPDU
+ // TODO still seems really chatty... add silent mode?
+ disChannel.setVerboseDisNetworkInterface(true); // Default false
+ disChannel.setVerbosePduRecorder (true); // default false
+ 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.getDisNetworkInterface().setVerbose(true); // sending and receipt
+ disChannel.printlnTRACE ("just checking: hasVerboseSending()=" + disChannel.getDisNetworkInterface().hasVerboseSending() +
+ ", hasVerboseReceipt()=" + disChannel.getDisNetworkInterface().hasVerboseReceipt());
+ disChannel.getPduRecorder().setVerbose(true);
+
+ // TODO confirm whether recorder is explicitly started by programmer (or not)
+
+// disChannel.sendCommentPdu(VariableRecordType.OTHER, "DisThreadedNetworkInterface.initializeDisChannel() complete"); // hello channel, debug
+ }
+
+ /** Get ready, get set... initialize simulation entities. Who's who in the zoo?
+ */
+ 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.
+ // who is who in our big zoo, sufficient for global participation if we need it
+ 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 edu.nps.moves.dis7.entities.usa.platform.air.MV22B()); // 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.getPduRecorder(). TODO record XML as well
+ 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(BavlsikSimulationProgram.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" target="_blank">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 BavlsikSimulationProgram 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" target="_blank">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 BavlsikSimulationProgram("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
+ }
+}
diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/README.md b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..c5aadebfdcbc089649b153eb705bb84c6286336b
--- /dev/null
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/README.md
@@ -0,0 +1,38 @@
+## Homework 3: Example Simulation Recording using OpenDIS Network Streams
+
+<!-- Viewable at https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/blob/master/assignments/src/MV3500Cohort2024JulySeptember/homework3/README.md -->
+
+### Assignment
+
+1. Adapt the functionality for [OpenDIS ExampleSimulationProgram](../../../../examples/src/OpenDis7Examples/ExampleSimulationProgram.java), modifying provided code
+2. Experiment with the enumeration values that set up each entity and PDU. What works for you? What makes sense for your future work?
+3. Adapt or replace the UML diagrams to describe what you have going on.
+4. Record, save and replay your result stream using [PduRecorder](https://savage.nps.edu/opendis7-java/javadoc/edu/nps/moves/dis7/utilities/stream/PduRecorder.html) or [Wireshark](https://www.wireshark.org)
+ * see local [assignments/src/pduLog](../../../pduLog) subdirectory for latest opendis log files
+ * Coming soon, we will also (again have) [X3D-Edit](https://savage.nps.edu/X3D-Edit) for DIS stream recording/replay
+5. Observe good-practice conventions in the [assignments README](../../../README.md) and [current-course README](../README.md) instructions.
+
+This assignment presents a Problem Prototyping opportunity.
+While some minimal functionality is expected, the general outline of
+a networking problem and proposed solution holds great interest.
+Think of it as warmup preparation for your future work.
+
+This is also a freeplay opportunity.
+You have the option to pick one or more of the provided course example programs
+and adapt the source to demonstrate a new client-server handshake protocol of interest.
+
+Be sure to provide a rationale that justifies why the networking choices you made
+(TCP/UDP, unicast/multicast, etc.) are the best for the problem you are addressing.
+
+You may find that the prior [homework2 README](../homework2/README.md) still provides
+helpful details on what specific deliverables are expected in each homework assignment.
+
+Team efforts are encouraged, though if you choose a team approach be sure to justify why.
+This is a good warmup prior to final projects. Have fun with Java networking!
+
+### Prior Assignment, August 2019
+
+In 2019, students worked together on a single project to check wireless multicast connectivity recently deployed on NPS campus.
+
+See their experimental results in the [NPS Multicast Connectivity Report](../../MV3500Cohort2019JulySeptember/homework3).
+
diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/package-info.java b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/package-info.java
new file mode 100644
index 0000000000000000000000000000000000000000..60e975bc003dc076eb78b534de856d790eac1561
--- /dev/null
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/package-info.java
@@ -0,0 +1,10 @@
+/**
+ * Final project assignments supporting the NPS MOVES MV3500 Networked Graphics course.
+ *
+ * @see <a href="https://gitlab.nps.edu/Savage/NetworkedGraphicsMV3500/-/tree/master/assignments" target="_blank">networkedGraphicsMV3500 assignments</a>
+ * @see java.lang.Package
+ * @see <a href="https://stackoverflow.com/questions/22095487/why-is-package-info-java-useful" target="_blank">StackOverflow: why-is-package-info-java-useful</a>
+ * @see <a href="https://stackoverflow.com/questions/624422/how-do-i-document-packages-in-java" target="_blank">StackOverflow: how-do-i-document-packages-in-java</a>
+ */
+
+package MV3500Cohort2024JulySeptember.homework3.Bavlsik;
diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Williams/ExampleSimulationProgram.java b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Williams/ExampleSimulationProgram.java
index a428dd2d01f173cac07c2bceefee9d12cd275df0..66628a8cc36a6e5c40ebfa947c28fbb835f65d27 100644
--- a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Williams/ExampleSimulationProgram.java
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Williams/ExampleSimulationProgram.java
@@ -8,7 +8,6 @@
*/
package MV3500Cohort2024JulySeptember.homework3.Williams;
-
import edu.nps.moves.dis7.entities.swe.platform.surface._001Poseidon;
import edu.nps.moves.dis7.entities.swe.platform.surface._002Triton;
import edu.nps.moves.dis7.enumerations.*;
@@ -25,9 +24,9 @@ import java.util.logging.Logger;
* tasks of interest, and then reporting activity via PDUs to the network.
* Default program initialization includes PDU recording turned on by default.
*
- * Homework 3 Networking choices:
+ * Homework 3 networking choices:
* This simulation uses UDP multicast for efficient distribution of PDUs to
- * multiple participants, which is suitable for large-scale simulations where
+ * multiple participants, which is great for large-scale simulations where
* state updates need to reach all networked participants. UDP is chosen over
* TCP due to its lower latency, which is essential for real-time simulations.
*
@@ -39,65 +38,38 @@ import java.util.logging.Logger;
*/
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 */
+ private double simulationTimeStepDuration = 1.0;
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.
- */
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);
@@ -108,9 +80,6 @@ public class ExampleSimulationProgram
initialize();
}
- /** Initialize channel setup for OpenDis7 and report a test PDU
- * @see initializeDisChannel
- * @see initializeSimulationEntities */
private void initialize()
{
initializeDisChannel();
@@ -122,7 +91,6 @@ public class ExampleSimulationProgram
disChannel.sendCommentPdu(simulationTimeSeconds, DisChannel.COMMENTPDU_SIMULATION_TIMESTEP, timeStepMessage);
}
- /** Initialize channel setup for OpenDis7 and report a test PDU */
private void initializeDisChannel()
{
if (disChannel == null)
@@ -143,8 +111,6 @@ public class ExampleSimulationProgram
disChannel.getPduRecorder().setVerbose(true);
}
- /** Initialize simulation entities.
- */
public void initializeSimulationEntities()
{
if (pduFactory == null)
@@ -155,30 +121,31 @@ public class ExampleSimulationProgram
firePdu_1b = pduFactory.makeFirePdu();
munitionDescriptor1 = new MunitionDescriptor();
- // Define participants
- entityID_1.setSiteID(1).setApplicationID(2).setEntityID(3);
+ entityID_1.setSiteID((int)(Math.random() * 100))
+ .setApplicationID((int)(Math.random() * 100))
+ .setEntityID((int)(Math.random() * 100));
disChannel.addEntity(entityID_1);
- entityID_2.setSiteID(1).setApplicationID(2).setEntityID(4);
+ entityID_2.setSiteID((int)(Math.random() * 100))
+ .setApplicationID((int)(Math.random() * 100))
+ .setEntityID((int)(Math.random() * 100));
disChannel.addEntity(entityID_2);
entityStatePdu_1.setEntityID(entityID_1);
entityStatePdu_1.setForceId(ForceID.FRIENDLY);
entityStatePdu_1.setEntityType(new _001Poseidon());
- entityStatePdu_1.setMarking("Entity #53");
+ entityStatePdu_1.setMarking("Ethan's Poseidon #1");
entityStatePdu_2.setEntityID(entityID_2);
entityStatePdu_2.setForceId(ForceID.OPPOSING);
entityStatePdu_2.setEntityType(new _002Triton());
- entityStatePdu_2.setMarking("Entity #2");
+ entityStatePdu_2.setMarking("Ethan's Triton #2");
munitionDescriptor1.setQuantity(1);
firePdu_1a.setDescriptor(munitionDescriptor1).setRange(1000.0f);
+
}
- /**
- * This runSimulationLoops() method is customizable for running new simulations.
- */
@SuppressWarnings("SleepWhileInLoop")
public void runSimulationLoops ()
{
@@ -195,13 +162,14 @@ public class ExampleSimulationProgram
{
simulationLoopCount++;
- entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() + 1.0);
-
+ entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() + (Math.random() * 2));
+
System.out.println ("... My simulation just did something...");
System.out.flush();
- narrativeMessage1 = "MV3500 ExampleSimulationProgram";
- narrativeMessage2 = "runSimulation() loop " + simulationLoopCount;
+ narrativeMessage1 = "Ethan's Custom Simulation Program";
+ narrativeMessage2 = "Loop " + simulationLoopCount + " - MV3500 Custom Version";
+ narrativeMessage3 = "Simulation developed by Ethan Williams";
if (simulationLoopCount > MAX_LOOP_COUNT)
{
@@ -242,14 +210,6 @@ public class ExampleSimulationProgram
}
}
- /**
- * Send EntityState, Fire, Comment PDUs for this loop.
- * @param simTimeSeconds simulation time in seconds
- * @param entityStatePdu the ESPDU to send
- * @param firePdu the FirePDU to send
- * @param commentType enumeration value describing purpose of the narrative comment PDU
- * @param comments String array of narrative comments
- */
public void sendAllPdusForLoopTimestep(double simTimeSeconds,
EntityStatePdu entityStatePdu,
FirePdu firePdu,
@@ -265,10 +225,6 @@ public class ExampleSimulationProgram
disChannel.sendCommentPdu(simTimeSeconds, commentType, comments);
}
- /**
- * 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)
{
if (args.length == 2)
@@ -285,47 +241,26 @@ public class ExampleSimulationProgram
}
}
- /**
- * Get simple descriptor for this network interface, used in trace statements
- * @return simple descriptor name
- */
public String getDescriptor() {
return descriptor;
}
- /**
- * Set new simple descriptor 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.
- * @param args command-line parameters: network address and port.
- */
public static void main(String[] args)
{
thisProgram = new ExampleSimulationProgram("test constructor");
@@ -342,4 +277,4 @@ public class ExampleSimulationProgram
System.exit(0);
}
-}
\ No newline at end of file
+}
diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Williams/README.md b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Williams/README.md
index a1c26dac941cf60805b78c8b235494c74e253bfc..94d69620e29da953dcf8ce18811801c9635e01e8 100644
--- a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Williams/README.md
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Williams/README.md
@@ -1,9 +1,3 @@
-For Homework 3, I modified the OpenDIS ExampleSimulationProgram to enhance its functionality
-by experimenting with entity enumeration values and adjusting the network communication setup.
-On the networking side, I configured the program to use UDP multicast for distribution of the PDUs across
-multiple participants in the simulation. I did this to attempt to create the
-low-latency communication needed in large-scale simulations, where UDP's minimal overhead is
-advantageous, and multicast ensures that updates reach all clients at the same time. I also
-enabled verbose logging to facilitate debugging. Additionally, I adjusted
-the simulation loop to increment Entity 1’s position in each iteration, simulating movement, and set
-the loop to run for a maximum of 10 iterations.
\ No newline at end of file
+For Homework 3, I altered the ExampleSimulationProgram by randomizing the entity IDs
+and I also introduced randomized movement patterns for the entities during the simulation loop.
+These changes make the simulation more realistic and ensuring variability in each run.
\ No newline at end of file