From 71d7008a0cf072e28bb312e4b3b7bf7c6ecbe4c4 Mon Sep 17 00:00:00 2001
From: tbavl <tbavl@MSI.ern.nps.edu>
Date: Wed, 4 Sep 2024 10:32:04 -0700
Subject: [PATCH] Bavlsik Assignment 3
---
.../Bavlsik/BavlsikSimulationProgram.java | 583 ++++++++++--------
.../homework3/Bavlsik/README.md | 42 +-
2 files changed, 339 insertions(+), 286 deletions(-)
diff --git a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/BavlsikSimulationProgram.java b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/BavlsikSimulationProgram.java
index 21463b4b64..639f00e31e 100644
--- a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/BavlsikSimulationProgram.java
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/BavlsikSimulationProgram.java
@@ -1,7 +1,9 @@
/**
* 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
+ * @author timothy.bavlsik@nps.edu
*/
package MV3500Cohort2024JulySeptember.homework3.Bavlsik;
@@ -12,156 +14,194 @@ 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.Random;
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>
+/**
+ * This program runs a simulation that initializes two entities, of which one will
+ * attempt to find and destroy the other, and one which will flee the other entity.
+ * 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
-{
+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 */
+
+ 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 */
+ /**
+ * 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 */
+
+ /**
+ * 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 */
+
+ /**
+ * 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.
+ * 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()
- {
+ public BavlsikSimulationProgram() {
initialize();
}
+
/**
* Constructor to create an instance of this class.
- * @param newDescriptor describes this program, useful for logging and debugging
+ *
+ * @param newDescriptor describes this program, useful for logging and
+ * debugging
*/
- public BavlsikSimulationProgram(String newDescriptor)
- {
+ public BavlsikSimulationProgram(String newDescriptor) {
descriptor = newDescriptor;
initialize();
}
+
/**
- * Utility Constructor that allows your example simulation program to override default network address and port
+ * 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?
+ 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
+ disChannel.setVerbosePduRecorder(true); // default false
initialize();
}
-
- /** Initialize channel setup for OpenDis7 and report a test PDU
+
+ /**
+ * Initialize channel setup for OpenDis7 and report a test PDU
+ *
* @see initializeDisChannel
- * @see initializeSimulationEntities */
- private void initialize()
- {
+ * @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)
+
+ /**
+ * 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");
+ } else {
+ disChannel.printlnTRACE("*** warning, duplicate invocation of initializeDisChannel() ignored");
return;
}
- pduFactory = disChannel.getPduFactory();
+ 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);
+ disChannel.printlnTRACE("just checking: disChannel.getNetworkAddress()=" + disChannel.getNetworkAddress()
+ + ", getNetworkPort()=" + disChannel.getNetworkPort());
+ disChannel.getDisNetworkInterface().setVerbose(false); // sending and receipt
+ disChannel.printlnTRACE("just checking: hasVerboseSending()=" + disChannel.getDisNetworkInterface().hasVerboseSending()
+ + ", hasVerboseReceipt()=" + disChannel.getDisNetworkInterface().hasVerboseReceipt());
+ disChannel.getPduRecorder().setVerbose(false);
// 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?
+
+ /**
+ * 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();
+ 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?
@@ -178,181 +218,215 @@ public class BavlsikSimulationProgram
entityStatePdu_2.setForceId(ForceID.OPPOSING);
entityStatePdu_2.setEntityType(new _002Triton()); // note import statement above
entityStatePdu_2.setMarking("Entity #2");
+ //Initialize entity2's location to a random spot from (0,0,0) to (10,10,0)
+ Random random = new Random();
+ int randX = random.nextInt(10);
+ int randY = random.nextInt(10);
+ entityStatePdu_2.getEntityLocation().setX(randX);
+ entityStatePdu_2.getEntityLocation().setY(randY);
// 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);
+ firePdu_1a.setDescriptor(munitionDescriptor1).setRange(3.0f);
}
-
+
/**
- * 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.
+ * 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
+ public void runSimulationLoops() {
+ Random random = new Random();
+ boolean killFlag = false;//updates if the hunter kills its prey.
+ 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?
{
- System.out.println ("... [loop termination condition met, simulationComplete=" + simulationComplete + "]"); // ", final loopCount=" + loopCount +
+ simulationLoopCount++; // good practice: increment loop counter as first action in that loop
+
+ // =============================================================================================
+ // * your own simulation code starts here! *****************************************************
+ // =============================================================================================
+ Vector3Double entity2Location = entityStatePdu_2.getEntityLocation();
+ Vector3Double entity1Location = entityStatePdu_1.getEntityLocation();
+ System.out.println(entity1Location);
+ System.out.println(entity2Location);
+ Double deltaX = entity2Location.getX() - entity1Location.getX();
+ Double deltaY = entity2Location.getY() - entity1Location.getY();
+ System.out.println("1x: " + entity1Location.getX() + " 1y: " + entity1Location.getY() + " deltaX " + deltaX + " deltaY " + deltaY);
+ System.out.println("2x: " + entity2Location.getX() + " 2y: " + entity2Location.getY());
+ Double magnitude = Math.sqrt((deltaX * deltaX) + (deltaY * deltaY));
+ System.out.println(magnitude);
+ // 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
+ if (magnitude <= firePdu_1a.getRange()) {
+ System.out.println(entityStatePdu_1.getEntityID() + " FIRING AT " + entityStatePdu_2.getEntityID() + "....");
+ double pKill = 0.5; //probability of a hit
+ double shot = random.nextDouble();
+ System.out.println(shot);
+ if (shot <= pKill) {
+ System.out.println("...HIT!");
+ killFlag = true;
+ } else {
+ System.out.println("...MISS!");
+ }
+ } else {
+ entityStatePdu_1.getEntityLocation().setX(entityStatePdu_1.getEntityLocation().getX() + (2 * deltaX / magnitude));
+ entityStatePdu_1.getEntityLocation().setY(entityStatePdu_1.getEntityLocation().getY() + (2 * deltaY / magnitude));
+ }
+ //Entity2 moves away from entity 1
+ entityStatePdu_2.getEntityLocation().setX(entityStatePdu_2.getEntityLocation().getX() + (deltaX / magnitude));
+ entityStatePdu_2.getEntityLocation().setY(entityStatePdu_2.getEntityLocation().getY() + (deltaY / magnitude));
+ 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 (killFlag) {
+ 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();
- break;
+
+ // 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
+ // ===================================================================================================// ===================================================================================================// ===================================================================================================// ===================================================================================================
+ if(simulationComplete){
+ System.out.println("Good guys sank the bads guys!");
+ }
+ else{
+ System.out.println("Bad guys got away... we'll get em' next time boys.");
}
- 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]");
-
+ 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);
- }
+ 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
+ * 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
+ * @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)
+ 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)
+ }
+
+ 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
+ * 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)
- {
+ 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())
+ if (args.length == 2) {
+ if ((args[0] != null) && !args[0].isEmpty()) {
thisProgram.disChannel.setNetworkAddress(args[0]);
- if ((args[1] != null) && !args[1].isEmpty())
+ }
+ if ((args[1] != null) && !args[1].isEmpty()) {
thisProgram.disChannel.setNetworkPort(Integer.parseInt(args[1]));
- }
- else if (args.length != 0)
- {
+ }
+ } 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
+ * Get simple descriptor (such as parent class name) for this network
+ * interface, used in trace statements
+ *
* @return simple descriptor name
*/
public String getDescriptor() {
@@ -360,17 +434,21 @@ public class BavlsikSimulationProgram
}
/**
- * Set new simple descriptor (such as parent class name) for this network interface, used in trace statements
+ * 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)
+ if (newDescriptor == null) {
newDescriptor = "";
+ }
this.descriptor = newDescriptor;
}
/**
* parameter accessor method
+ *
* @return the simulationTimeStepDuration in seconds
*/
public double getSimulationTimeStepDuration() {
@@ -379,35 +457,42 @@ public class BavlsikSimulationProgram
/**
* parameter accessor method
- * @param timeStepDurationSeconds the simulationTimeStepDuration in seconds to set
+ *
+ * @param timeStepDurationSeconds the simulationTimeStepDuration in seconds
+ * to set
*/
public void setSimulationTimeStepDuration(double timeStepDurationSeconds) {
this.simulationTimeStepDuration = timeStepDurationSeconds;
}
-
- /** Locally instantiable copy of program, can be subclassed. */
+
+ /**
+ * 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>
+ *
+ * @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)
- {
+ 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
index c5aadebfdc..4827a529dc 100644
--- a/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/README.md
+++ b/assignments/src/MV3500Cohort2024JulySeptember/homework3/Bavlsik/README.md
@@ -1,38 +1,6 @@
## 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).
-
+This program runs a simulation between two entites. One entity is initialized at
+(0,0,0) and the other is randomly placed. The hunter entity moves towards the prey
+entity until it is in range. When in range the hunter attempts to shoot the prey.
+If successful, the simulation ends. The prey entity constantly attemps to move away
+from the hunter.
\ No newline at end of file
--
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