diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Lennon/LennonSimulationProgram.java b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Lennon/LennonSimulationProgram.java
new file mode 100644
index 0000000000000000000000000000000000000000..a6bf39142a82b9a8f07e507e3acb7540398aac60
--- /dev/null
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Lennon/LennonSimulationProgram.java
@@ -0,0 +1,421 @@
+/**
+ * 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.Lennon;
+
+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.ArrayList;
+import java.util.List;
+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 LennonSimulationProgram
+{
+ /* **************************** 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 LennonSimulationProgram()
+ {
+ initialize();
+ }
+ /**
+ * Constructor to create an instance of this class.
+ * @param newDescriptor describes this program, useful for logging and debugging
+ */
+ public LennonSimulationProgram(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 LennonSimulationProgram(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; // set number of turns in the game also avoid infinite loops.
+ int simulationLoopCount = 0; // variable, initialized at 0
+ boolean simulationComplete = false; // sentinel variable as termination condition, are we done yet?
+ final int NUMBER_MINES = 5; // preset number of mines to be placed
+ // 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
+ List<double[]> minefield = new ArrayList<>();
+
+ for (int i = 0; i < NUMBER_MINES; i++){
+ //double x = Random.nextInt();
+ //double[] mine = []
+ }
+ 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(LennonSimulationProgram.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 LennonSimulationProgram 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 LennonSimulationProgram("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/Lennon/package-info.java b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Lennon/package-info.java
new file mode 100644
index 0000000000000000000000000000000000000000..0182f9f08eac81459c1925c4695b44789f5bb82a
--- /dev/null
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Lennon/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.Lennon;
diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Smith/ExampleSimulationProgram.java b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Smith/ExampleSimulationProgram.java
index a5e42691d8d460162361a3b370617b601b204425..26419da18ec013dfd0790866944c8d64b44c0020 100644
--- a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Smith/ExampleSimulationProgram.java
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Smith/ExampleSimulationProgram.java
@@ -1,413 +1,310 @@
-/**
- * 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 tjsus
- */
package MV3500Cohort2024JulySeptember.homework3.Smith;
-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.enumerations.VariableRecordType;
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>
+/**
+ * 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.
*/
-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 */
+public class ExampleSimulationProgram {
+
+ // Constants for the Battleship game
+ private static final int GRID_SIZE = 10; // 10x10 grid for Battleship
+ private static final int MAX_TURNS = 100; // Limit turns to avoid infinite games
+
+ // Grids for each player
+ private char[][] player1Grid = new char[GRID_SIZE][GRID_SIZE];
+ private char[][] player2Grid = new char[GRID_SIZE][GRID_SIZE];
+
+ // To track whose turn it is
+ private boolean isPlayer1Turn = true;
+
+ // Ship positions (simple example positions for each player's ships)
+ private final int[][] player1Ships = {{0, 0}, {0, 1}, {0, 2}}; // Positions for player 1's ships
+ private final int[][] player2Ships = {{5, 5}, {5, 6}, {5, 7}}; // Positions for player 2's ships
+
+ // DIS utilities
+ private String descriptor = this.getClass().getSimpleName();
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...
-
+ protected CommentPdu gridStatusPdu;
+ protected FirePdu firePduPlayer1;
+ protected FirePdu firePduPlayer2;
+ protected MunitionDescriptor munitionDescriptor1 = new MunitionDescriptor();
+
+ // Simulation time settings
+ private double simulationTimeStepDuration = 1.0; // seconds
+ private double simulationTimeSeconds = 0.0;
+
+ // Tracking indices for Player 1's systematic search
+ private int player1SearchRow = 0;
+ private int player1SearchCol = 0;
+
/**
- * 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.
+ * 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()
- {
+ public ExampleSimulationProgram() {
initialize();
}
+
/**
- * Constructor to create an instance of this class.
- * @param newDescriptor describes this program, useful for logging and debugging
+ * Initialize the simulation program, setting up the DIS channel, PDUs, and
+ * the Battleship game grids.
*/
- public ExampleSimulationProgram(String newDescriptor)
- {
- descriptor = newDescriptor;
- initialize();
+ private void initialize() {
+ initializeDisChannel();
+ initializeSimulationEntities();
+ setupGrids();
+ disChannel.join();
}
+
/**
- * 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
+ * Initialize the DIS channel for communication, setting verbose output for
+ * debugging and creating the PduFactory.
*/
- public ExampleSimulationProgram(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
+ private void initializeDisChannel() {
+ disChannel = new DisChannel();
+ pduFactory = disChannel.getPduFactory();
+ disChannel.setDescriptor(this.getClass().getSimpleName());
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?
+
+ /**
+ * Initialize simulation entities by creating PDUs for firing events.
*/
- 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);
+ private void initializeSimulationEntities() {
+ firePduPlayer1 = pduFactory.makeFirePdu();
+ firePduPlayer2 = pduFactory.makeFirePdu();
+ gridStatusPdu = pduFactory.makeCommentPdu();
}
-
+
/**
- * 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.
+ * Set up the game grids for each player, marking empty water and ship
+ * positions.
*/
- @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;
+ private void setupGrids() {
+ // Initialize grids with empty water '~'
+ for (int i = 0; i < GRID_SIZE; i++) {
+ for (int j = 0; j < GRID_SIZE; j++) {
+ player1Grid[i][j] = '~';
+ player2Grid[i][j] = '~';
}
- 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(ExampleSimulationProgram.class.getSimpleName()).log(Level.SEVERE, null, iex);
- }
+ }
+
+ // Place ships on the grids ('P' denotes a ship)
+ for (int[] ship : player1Ships) {
+ player1Grid[ship[0]][ship[1]] = 'P';
+ }
+ for (int[] ship : player2Ships) {
+ player2Grid[ship[0]][ship[1]] = 'P';
+ }
}
/**
- * 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
+ * This runSimulationLoops() method is for you, a customizable
+ * programmer-modifiable code block for defining and running a new
+ * simulation of interest.
*/
- 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
+ public void runSimulationLoops() {
+ int turnCount = 0;
+ while (turnCount < MAX_TURNS) {
+ if (isPlayer1Turn) {
+ // Player 1 systematically searches Player 2's grid
+ int[] target = selectNextTargetForPlayer1();
+ handleFire(firePduPlayer1, player2Grid, target, "Player 1");
+ } else {
+ // Player 2 fires at Player 1 randomly
+ int[] target = selectRandomTarget();
+ handleFire(firePduPlayer2, player1Grid, target, "Player 2");
+ }
+
+ // Switch turns and increment turn counter
+ isPlayer1Turn = !isPlayer1Turn;
+ turnCount++;
+
+ // Check for win conditions
+ if (checkWinCondition(player1Grid)) {
+ System.out.println("Player 2 wins!");
+ break;
+ } else if (checkWinCondition(player2Grid)) {
+ System.out.println("Player 1 wins!");
+ break;
+ }
+
+ // Wait for the next simulation step
+ try {
+ Thread.sleep((long) (simulationTimeStepDuration * 1000)); // units of seconds * (1000 msec/sec) = milliseconds
+ } catch (InterruptedException iex) {
+ Logger.getLogger(ExampleSimulationProgram.class.getSimpleName()).log(Level.SEVERE, null, iex);
+ }
+
+ // Increment simulation time
+ simulationTimeSeconds += simulationTimeStepDuration;
+ }
}
-
+
/**
- * Initial execution via main() method: handle args array of command-line initialization (CLI) arguments here
- * @param args command-line parameters: network address and port
+ * Systematically select the next target for Player 1 in a row-by-row
+ * manner.
+ *
+ * @return the coordinates of the next target cell.
*/
- 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]));
+ private int[] selectNextTargetForPlayer1() {
+ // Systematically select the next target in a row-by-row manner
+ int[] target = {player1SearchRow, player1SearchCol};
+
+ // Move to the next column
+ player1SearchCol++;
+ // If end of row is reached, move to the next row and reset column
+ if (player1SearchCol >= GRID_SIZE) {
+ player1SearchCol = 0;
+ player1SearchRow++;
}
- else if (args.length != 0)
- {
- System.err.println("Usage: " + thisProgram.getClass().getSimpleName() + " [address port]");
- System.exit(-1);
+
+ // Ensure search stays within grid bounds
+ if (player1SearchRow >= GRID_SIZE) {
+ player1SearchRow = 0; // Reset search if bounds are exceeded
}
+
+ return target;
}
/**
- * Get simple descriptor (such as parent class name) for this network interface, used in trace statements
- * @return simple descriptor name
+ * Randomly select a target on the grid for Player 2's turn.
+ *
+ * @return the coordinates of the randomly selected target cell.
*/
- public String getDescriptor() {
- return descriptor;
+ private int[] selectRandomTarget() {
+ int x = (int) (Math.random() * GRID_SIZE);
+ int y = (int) (Math.random() * GRID_SIZE);
+ return new int[]{x, y};
}
/**
- * 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
+ * Handles the firing action, setting relevant data in the FirePdu, checking
+ * if the target is a hit or miss, updating the grid, and sending the
+ * appropriate PDU.
+ *
+ * @param firePdu the FirePdu object to use for the shot.
+ * @param grid the grid of the player being fired at.
+ * @param target the coordinates of the target cell.
+ * @param player the name of the player firing the shot.
*/
- public void setDescriptor(String newDescriptor) {
- if (newDescriptor == null)
- newDescriptor = "";
- this.descriptor = newDescriptor;
+ private void handleFire(FirePdu firePdu, char[][] grid, int[] target, String player) {
+ int x = target[0];
+ int y = target[1];
+
+ // Set relevant details in the FirePdu
+ firePdu.setFiringEntityID(new EntityID().setEntityID(player.equals("Player 1") ? 1 : 2));
+ firePdu.setTargetEntityID(new EntityID().setEntityID(player.equals("Player 1") ? 1 : 2));
+ Vector3Double fireLoc = new Vector3Double(); //annoying that there isn't a Vector3Double(x, y, z) constructor...
+ fireLoc.setX(x);
+ fireLoc.setY(y);
+ fireLoc.setZ(0.0);
+ firePdu.setLocationInWorldCoordinates(fireLoc);
+ firePdu.setDescriptor(munitionDescriptor1); // Not needed I guess
+ firePdu.setRange(100.0f);// Not needed I gueess
+
+ // Print the firing action
+ System.out.println(player + " fires at (" + x + ", " + y + ").");
+
+ // Determine hit or miss and update the game grid
+ if (grid[x][y] == 'P') {
+ grid[x][y] = 'H'; // Mark as Hit
+ firePdu.setFireMissionIndex(1); // Indicate that this was a successful hit with an index of 1
+ System.out.println(player + " hits a ship at (" + x + ", " + y + ")!");
+ } else if (grid[x][y] == '~') {
+ grid[x][y] = 'M'; // Mark as Miss
+ firePdu.setFireMissionIndex(0); // Indicate that this was a miss with an index of 0
+ System.out.println(player + " misses at (" + x + ", " + y + ").");
+ } else {
+ System.out.println(player + " fires at (" + x + ", " + y + ") but it's already hit/missed.");
+ }
+
+ // Send the FirePdu to represent the shot
+ disChannel.sendSinglePdu(simulationTimeSeconds, firePdu);
+
+ // Send the updated grid status of both players
+ sendGridStatus();
+ }
+
+ /**
+ * Checks the win condition by verifying if all ships on the grid have been
+ * hit.
+ *
+ * @param grid the grid to check.
+ * @return true if all ships are hit; false otherwise.
+ */
+ private boolean checkWinCondition(char[][] grid) {
+ // Check if all ships have been hit
+ for (int i = 0; i < GRID_SIZE; i++) {
+ for (int j = 0; j < GRID_SIZE; j++) {
+ if (grid[i][j] == 'P') {
+ return false; // There are still ships left
+ }
+ }
+ }
+ return true; // All ships have been hit
}
/**
- * parameter accessor method
- * @return the simulationTimeStepDuration in seconds
+ * Sends the current grid status of both players as a CommentPdu.
*/
- public double getSimulationTimeStepDuration() {
- return simulationTimeStepDuration;
+ private void sendGridStatus() {
+ // Construct a string representation of both grids
+ StringBuilder gridStatus = new StringBuilder();
+ gridStatus.append("Player 1 Grid:\n");
+ appendGridToString(gridStatus, player1Grid);
+ gridStatus.append("Player 2 Grid:\n");
+ appendGridToString(gridStatus, player2Grid);
+
+ // Set the grid status in the CommentPdu
+ gridStatusPdu.getVariableDatums().clear(); // Clear previous comments
+ gridStatusPdu.getVariableDatums().add(new VariableDatum()
+ .setVariableDatumID(VariableRecordType.OTHER)
+ .setVariableDatumValue(gridStatus.toString().getBytes())
+ .setVariableDatumLengthInBytes(gridStatus.toString().getBytes().length));
+
+ // Send the CommentPdu containing the grid status
+ disChannel.sendSinglePdu(simulationTimeSeconds, gridStatusPdu);
}
/**
- * parameter accessor method
- * @param timeStepDurationSeconds the simulationTimeStepDuration in seconds to set
+ * Appends the current grid status to a StringBuilder.
+ *
+ * @param sb the StringBuilder to append to.
+ * @param grid the grid to represent.
*/
- public void setSimulationTimeStepDuration(double timeStepDurationSeconds) {
- this.simulationTimeStepDuration = timeStepDurationSeconds;
+ private void appendGridToString(StringBuilder sb, char[][] grid) {
+ for (char[] row : grid) {
+ for (char cell : row) {
+ sb.append(cell).append(' ');
+ }
+ sb.append('\n');
+ }
}
-
- /** 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" 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
+ * 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
+ public static void main(String[] args) {
+ ExampleSimulationProgram game = new ExampleSimulationProgram();
+ game.runSimulationLoops();
+ System.out.println("Game Over");
}
}
diff --git a/examples/src/UdpExamples/UnicastUdpSender.java b/examples/src/UdpExamples/UnicastUdpSender.java
index e7d4daf32708dfa6815fae497003410e3bb1a468..68cde3d0adc819257118fd6344ef554d2e93e312 100644
--- a/examples/src/UdpExamples/UnicastUdpSender.java
+++ b/examples/src/UdpExamples/UnicastUdpSender.java
@@ -27,13 +27,13 @@ public class UnicastUdpSender
private static final String MY_NAME = System.getProperty("user.name"); // guru incantation 8)
// public static final int SENDING_PORT = 1414; // not needed, can let system choose an open local port
/** socket value of shared interest */
- public static final int UDP_PORT = UnicastUdpReceiver.UDP_PORT; // 1415; ensure consistent
+ public static final int UDP_PORT = 1415;// ensure consistent
private static final int TOTAL_PACKETS_TO_SEND = 100;
/** socket value of shared interest */
- public static final String DESTINATION_HOST = "localhost";
+ //public static final String DESTINATION_HOST = "localhost";
// here is what we need for lab comms
-// public static final String DESTINATION_HOST = "10.1.105.16"; // localhost 127.0.0.1 or argon 10.1.105.1 or 10.1.105.1 or whatever
+ public static final String DESTINATION_HOST = "127.0.0.1"; // localhost 127.0.0.1 or argon 10.1.105.1 or 10.1.105.1 or whatever
/**
* Program invocation, execution starts here
@@ -46,7 +46,7 @@ public class UnicastUdpSender
DataOutputStream dos = null;
int packetID = 0; // counter variable to send in packet
float countdown = -1.0f; // unreachable value is good sentinel to ensure expected changes occur
- String message = MY_NAME + " says Hello MV3500"; // no really
+ String message = MY_NAME + " says Hello Professor!"; // no really
String padding = new String();
try
diff --git a/examples/src/ViskitOpenDis7Examples/lib/Networked_Graphics_MV3500_examples.jar b/examples/src/ViskitOpenDis7Examples/lib/Networked_Graphics_MV3500_examples.jar
index 35ebf4ea7009c85ef6c28842ac4d75c08979a120..cfee7ec6da283812a9838c1ab79aae47e5169272 100644
Binary files a/examples/src/ViskitOpenDis7Examples/lib/Networked_Graphics_MV3500_examples.jar and b/examples/src/ViskitOpenDis7Examples/lib/Networked_Graphics_MV3500_examples.jar differ