From d2bed601d0d9bbb9e70478db171a8a0fd37aa25e Mon Sep 17 00:00:00 2001
From: thomascecil <thomascecil@thomass-air.ern.nps.edu>
Date: Sun, 14 May 2023 21:11:31 -0700
Subject: [PATCH] HW 3 submit.
---
.../homework3/Cecil/ArrivalProcess.java | 85 +++++++++++++++++++
.../Cecil/ExampleSimulationProgram.java | 30 ++++++-
2 files changed, 112 insertions(+), 3 deletions(-)
create mode 100644 assignments/src/MV3500Cohort2023MarchJune/homework3/Cecil/ArrivalProcess.java
diff --git a/assignments/src/MV3500Cohort2023MarchJune/homework3/Cecil/ArrivalProcess.java b/assignments/src/MV3500Cohort2023MarchJune/homework3/Cecil/ArrivalProcess.java
new file mode 100644
index 0000000000..97630234a6
--- /dev/null
+++ b/assignments/src/MV3500Cohort2023MarchJune/homework3/Cecil/ArrivalProcess.java
@@ -0,0 +1,85 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package MV3500Cohort2023MarchJune.homework3.Cecil;
+
+import simkit.SimEntityBase;
+import simkit.random.RandomVariate;
+
+/**
+ * Specifies the cumulative number of arrivals with times between arrivals
+ * (deterministic or random).
+ * @author thomascecil
+ */
+public class ArrivalProcess extends SimEntityBase {
+
+ private RandomVariate interarrivalTimeGenerator;
+ protected int numberArrivals;
+
+ /**
+ * Constructor for the arrival process setting the interarrivalTimeGenerator.
+ * @param interarrivalTimeGenerator
+ */
+ public ArrivalProcess(RandomVariate interarrivalTimeGenerator) {
+ this.setInterarrivalTimeGenerator(interarrivalTimeGenerator);
+ }
+
+ /**
+ * Constructs the arrival process.
+ */
+ public ArrivalProcess() { }
+
+ /**
+ * Getter for the InterarrivalTimeGenerator.
+ * @return
+ */
+ public RandomVariate getInterarrivalTimeGenerator() {
+ return interarrivalTimeGenerator;
+ }
+
+ /**
+ * Setter for the interarrivalTimeGenerator.
+ * @param interarrivalTimeGenerator
+ */
+ public void setInterarrivalTimeGenerator(RandomVariate interarrivalTimeGenerator) {
+ this.interarrivalTimeGenerator = interarrivalTimeGenerator;
+ }
+
+ /**
+ * Getter for the number of arrivals.
+ * @return
+ */
+ public int getNumberArrivals() {
+ return this.numberArrivals;
+ }
+
+ /**
+ * Sets all state variables to their initial values.
+ */
+ @Override
+ public void reset() {
+ super.reset();
+ numberArrivals = 0;
+ }
+
+ /**
+ * Fires a property change then schedules the first event, a run event.
+ */
+ public void doRun() {
+ firePropertyChange("numberArrivals", getNumberArrivals());
+ waitDelay("Arrival", interarrivalTimeGenerator);
+ }
+
+ /**
+ * Saves the old value for numberArrivals and passes it to firePropertyChange
+ * and updates time-varying state variables.
+ */
+ public void doArrival() {
+ int oldNumberArrivals = getNumberArrivals();
+ numberArrivals = numberArrivals + 1;
+ firePropertyChange("numberArrivals", oldNumberArrivals,
+ getNumberArrivals());
+ waitDelay("Arrival", interarrivalTimeGenerator);
+ }
+}
diff --git a/assignments/src/MV3500Cohort2023MarchJune/homework3/Cecil/ExampleSimulationProgram.java b/assignments/src/MV3500Cohort2023MarchJune/homework3/Cecil/ExampleSimulationProgram.java
index 87bda3d015..1201f46aa3 100644
--- a/assignments/src/MV3500Cohort2023MarchJune/homework3/Cecil/ExampleSimulationProgram.java
+++ b/assignments/src/MV3500Cohort2023MarchJune/homework3/Cecil/ExampleSimulationProgram.java
@@ -16,6 +16,11 @@ import java.time.LocalDateTime;
import java.util.logging.Level;
import java.util.logging.Logger;
+import simkit.Schedule;
+import simkit.random.RandomVariate;
+import simkit.random.RandomVariateFactory;
+import simkit.util.SimplePropertyDumper;
+
/** 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.
@@ -37,13 +42,13 @@ public class ExampleSimulationProgram
protected PduFactory pduFactory;
/** seconds per loop for real-time or simulation execution */
- private double simulationTimeStepDuration = 1.0; // seconds TODO encapsulate
+ private double simulationTimeStepDuration = 0.2; // 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;
+ int MAX_LOOP_COUNT = 10;
String narrativeMessage1 = new String();
String narrativeMessage2 = new String();
@@ -215,7 +220,26 @@ public class ExampleSimulationProgram
// =============================================================================================
// * your own simulation code starts here! *****************************************************
// =============================================================================================
-
+ RandomVariate interarrivalTimeGenerator = RandomVariateFactory.getInstance(
+ "Exponential", 3.2);
+ ArrivalProcess arrivalProcess = new ArrivalProcess(interarrivalTimeGenerator);
+
+ // Event listener for changes in numberArrivals
+ SimplePropertyDumper simplePropertyDumper = new SimplePropertyDumper();
+ arrivalProcess.addPropertyChangeListener(simplePropertyDumper);
+
+ System.out.println(arrivalProcess);
+
+ Schedule.stopAtTime(15.0);
+ Schedule.setVerbose(true);
+
+ // Initializes state variables and starts simulation
+ Schedule.reset();
+ Schedule.startSimulation();
+
+ System.out.println("At time " + Schedule.getSimTime() +
+ " there have been " + arrivalProcess.getNumberArrivals() +
+ " arrivals");
// 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
--
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