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- package de.hems.trafficsim;
-
- import java.util.ArrayList;
- import java.util.LinkedList;
- import java.util.List;
- import java.util.Observable;
-
- public class Track extends Observable {
- protected List<Vehicle> vehicles;
- protected List<List<VehicleTimeRecord>> vtrList;
- protected float trackLength;
- protected float sumAvgMemory;
- protected float sumDelAvgMemory;
- protected int historyLength;
- protected float overallAvg;
- protected float delayedAvg;
- protected float lastAvg;
- protected int waitTime;
- protected float maxVelocity;
- protected float brakeProb;
-
- public List<List<VehicleTimeRecord>> getVtrList() { return vtrList; }
- public float getOverallAvg() {
- return overallAvg;
- }
- public float getLastAvg() {
- return lastAvg;
- }
- public float getDelayedAvg() { return delayedAvg; }
- public List<Vehicle> getVehicles() {
- return vehicles;
- }
- public float getTrackLength() {
- return trackLength;
- }
-
- public Track(int numberVehicles, float trackLength, float brakeProb, float maxVelocity, int waitTime) {
- this.trackLength = trackLength;
- this.brakeProb = brakeProb;
- this.maxVelocity = maxVelocity;
- this.vehicles = createVehiclesList(numberVehicles);
- this.vtrList = new LinkedList<>();
- this.sumAvgMemory = 0;
- this.sumDelAvgMemory = 0;
- this.overallAvg = 0;
- this.delayedAvg = 0;
- this.lastAvg = 0;
- this.historyLength = 25;
- this.waitTime = waitTime;
-
- }
-
- protected List<Vehicle> createVehiclesList(int numberVehicles){
- List<Vehicle> result = new ArrayList<>();
- for(int i=0;i<numberVehicles;i++){
- Vehicle vehicle = new Vehicle(i, i, this.maxVelocity, this.brakeProb, this.trackLength);
- result.add(vehicle);
- }
-
- return result;
- }
-
- public void setWaitTime(int waitTime) {
- this.waitTime = waitTime;
- }
-
- public void setBrakeProb(float brakeProb) {
- for (Vehicle v : this.vehicles) {
- v.setBrakeProb(brakeProb);
- }
- }
-
- public void setMaxVelocity(float maxVelocity) {
- for (Vehicle v : this.vehicles) {
- v.setMaxVelocity(maxVelocity);
- }
- }
-
- public void timeElapse() {
- for(int i=0; i<vehicles.size();i++) {
- Vehicle v = vehicles.get(i);
- int forerunnerIndex = i + 1;
- if (forerunnerIndex >= vehicles.size()) {
- forerunnerIndex -= vehicles.size();
- }
- Vehicle forerunner = vehicles.get(forerunnerIndex);
- float distanceForerunner = forerunner.getPosition() - v.getPosition() - 1;
- if(distanceForerunner < 0.0){
- distanceForerunner += this.trackLength;
- }
- v.updateVelocity(distanceForerunner);
- }
- List <VehicleTimeRecord> records = new ArrayList<>(vehicles.size());
- this.vtrList.add(records);
- for(Vehicle v: vehicles){
- v.timeElapse();
- VehicleTimeRecord vtr = new VehicleTimeRecord(v.id, v.position, v.curVelocity, v.maxVelocity);
- records.add(vtr);
- }
- update_avg();
- this.setChanged();
- this.notifyObservers();
- this.clearChanged();
- try {
- Thread.sleep(waitTime);
- } catch (InterruptedException ex) { }
- }
-
- public float avg_step(int step){
- float sum_step = 0;
- for (VehicleTimeRecord r : vtrList.get(step)) {
- sum_step += r.velocity;
- }
- return sum_step / vehicles.size();
- }
-
- protected void update_avg(){
- lastAvg = avg_step(vtrList.size()-1);
- if (this.vtrList.size() > 10) {
- sumDelAvgMemory += lastAvg;
- delayedAvg = sumDelAvgMemory / (vtrList.size() - 10);
- }
- sumAvgMemory += lastAvg;
- overallAvg = sumAvgMemory / vtrList.size();
-
- }
-
- public float avg_span(int start, int end){
- float sum_span = 0;
- for (int i=start; i <end;i++){
- sum_span += avg_step(i);
- }
- return sum_span / (end-start+1);
- }
-
- }
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