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TrafficSim
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Implement delayed average, add delay SeekBar, add clear button

tags/Release_1
Loch Christian (uib05376) 3 years ago
parent
28b0f2aae3
commit
9cad2f20f1
3 changed files with 181 additions and 17 deletions
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  1. +58
    -9
      app/src/main/java/de/hems/trafficsim/MainActivity.java
  2. +17
    -4
      app/src/main/java/de/hems/trafficsim/Track.java
  3. +106
    -4
      app/src/main/res/layout/activity_main.xml

+ 58
- 9
app/src/main/java/de/hems/trafficsim/MainActivity.java View File

@@ -17,6 +17,7 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
public static final int defaultTrackLength = 100;
public static final float defaultBrakeProb = 0.3f;
public static final float defaultMaxVelocity = 5.0f;
public static final int defaultDelay = 0;
protected Track track;
protected TimeRecordView trackView;
protected Worker worker;
@@ -26,7 +27,8 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
this.track = new Track(defaultNoOfVehicles, defaultTrackLength, defaultBrakeProb, defaultMaxVelocity);
this.track = new Track(defaultNoOfVehicles, defaultTrackLength, defaultBrakeProb,
defaultMaxVelocity, defaultDelay);
this.track.addObserver(this);
this.viewStack = (LinearLayout) findViewById(R.id.trackViewStack);

@@ -49,6 +51,17 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
brakeProbabilitySeekBar.setOnSeekBarChangeListener(this);
brakeProbabilitySeekBar.setProgress((int)(defaultBrakeProb*20));
((TextView)(findViewById(R.id.brakeProbTextView))).setText(String.valueOf(defaultBrakeProb));

SeekBar delaySeekBar = (SeekBar)(findViewById(R.id.simDelaySeekBar));
delaySeekBar.setOnSeekBarChangeListener(this);
delaySeekBar.setProgress(defaultDelay);

this.update(this.track, null);
}

public static float round(float number, int digits) {
float div = (float) Math.pow(10.0f, digits);
return Math.round(number*div)/div;
}

@Override
@@ -58,6 +71,8 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
final MainActivity mainActivity = this;
final TextView lastAvgView = (TextView) findViewById(R.id.avgVeloLastView);
final TextView overallAvgView = (TextView) findViewById(R.id.avgVeloOverallView);
final TextView delayedAvgView = (TextView) findViewById(R.id.delayedAvgTextView);
final TextView stepsView = (TextView) findViewById(R.id.stepsTextView);
runOnUiThread(new Runnable() {
@Override
public void run() {
@@ -65,8 +80,11 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
if (viewStackRef.getChildCount() > 0)
viewStackRef.removeViewAt(0);
viewStackRef.addView(newTrView);
lastAvgView.setText(String.valueOf(trackRef.getLastAvg()));
overallAvgView.setText(String.valueOf(trackRef.getOverallAvg()));
lastAvgView.setText(String.valueOf(round(trackRef.getLastAvg(), 2)));
overallAvgView.setText(String.valueOf(round(trackRef.getOverallAvg(), 2)));
stepsView.setText(String.valueOf(trackRef.getVtrList().size()));
delayedAvgView.setText(String.valueOf(round(trackRef.getDelayedAvg(), 2)));

}
});
}
@@ -82,6 +100,8 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
stepButton.setEnabled(false);
Button stopButton = (Button) findViewById(R.id.stopButton);
stopButton.setEnabled(true);
Button clearButton = (Button) findViewById(R.id.clearButton);
clearButton.setEnabled(false);

this.worker = new Worker(track);
this.worker.start();
@@ -94,6 +114,8 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
stepButton.setEnabled(true);
Button stopButton = (Button) findViewById(R.id.stopButton);
stopButton.setEnabled(false);
Button clearButton = (Button) findViewById(R.id.clearButton);
clearButton.setEnabled(true);

this.worker.setStop(true);
try {
@@ -104,6 +126,31 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
this.worker = null;
}

protected void stopWorker() {
this.worker.setStop(true);
try {
this.worker.join();
} catch (InterruptedException ex) {
}
this.worker = null;
}

public void onClearButtonClick(View view) {
this.track.deleteObserver(this);
if (this.worker != null) { // There was a simulation running
this.stopWorker();
}
Button playButton = (Button) findViewById(R.id.playButton);
playButton.setEnabled(true);
Button stepButton = (Button) findViewById(R.id.stepButton);
stepButton.setEnabled(true);
Button stopButton = (Button) findViewById(R.id.stopButton);
stopButton.setEnabled(false);
this.updateTrack();
this.update(this.track, null);

}

protected void updateTrack() {
int newTrackLength = ((SeekBar)(findViewById(R.id.trackLengthSeekBar))).getProgress();
SeekBar noOfVehiclesSeekBar = (SeekBar)(findViewById(R.id.noOfVehiclesSeekBar));
@@ -123,14 +170,12 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
SeekBar brakeProbabilitySeekBar = (SeekBar) findViewById(R.id.brakeProbabilitySeekBar);
float newBrakeProb = (float)brakeProbabilitySeekBar.getProgress() / (float)brakeProbabilitySeekBar.getMax();

this.track = new Track(newNoOfVehicles, newTrackLength, newBrakeProb, newMaxVelocity);
int newDelay = ((SeekBar)(findViewById(R.id.simDelaySeekBar))).getProgress();

this.track = new Track(newNoOfVehicles, newTrackLength, newBrakeProb, newMaxVelocity, newDelay);
this.track.addObserver(this);
if (this.worker != null) { // There was a simulation running already
this.worker.setStop(true);
try {
this.worker.join();
} catch (InterruptedException ex) {
}
this.stopWorker();
this.worker = new Worker(track);
this.worker.start();
}
@@ -151,6 +196,10 @@ public class MainActivity extends AppCompatActivity implements Observer, SeekBar
tv.setText(String.valueOf(progress));
} else if (seekBar == (SeekBar)(findViewById(R.id.trackLengthSeekBar))) {
this.updateTrack();
} else if (seekBar == (SeekBar)(findViewById(R.id.simDelaySeekBar))) {
TextView tv = (TextView)(findViewById(R.id.simDelayTextView));
tv.setText(String.valueOf(seekBar.getProgress()));
this.track.setWaitTime(seekBar.getProgress());
}
}



+ 17
- 4
app/src/main/java/de/hems/trafficsim/Track.java View File

@@ -10,22 +10,23 @@ public class Track extends Observable {
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 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;
}
@@ -33,16 +34,19 @@ public class Track extends Observable {
return trackLength;
}

public Track(int numberVehicles, float trackLength, float brakeProb, float maxVelocity) {
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;

}

@@ -56,6 +60,10 @@ public class Track extends Observable {
return result;
}

public void setWaitTime(int waitTime) {
this.waitTime = waitTime;
}

public void setBrakeProb(float brakeProb) {
for (Vehicle v : this.vehicles) {
v.setBrakeProb(brakeProb);
@@ -108,8 +116,13 @@ public class Track extends Observable {

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){


+ 106
- 4
app/src/main/res/layout/activity_main.xml View File

@@ -159,6 +159,29 @@
android:paddingTop="8dp"
android:paddingBottom="8dp">

<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent" >

<TextView
android:id="@+id/textView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Steps" />

<TextView
android:id="@+id/textView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" " />

<TextView
android:id="@+id/stepsTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0" />
</TableRow>

<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
@@ -169,10 +192,17 @@
android:layout_height="wrap_content"
android:text="Average velocity (overall):" />

<TextView
android:id="@+id/textView10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" " />

<TextView
android:id="@+id/avgVeloOverallView"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
android:layout_height="wrap_content"
android:text="0.0" />
</TableRow>

<TableRow
@@ -185,11 +215,41 @@
android:layout_height="wrap_content"
android:text="Average velocity (last step):" />

<TextView
android:id="@+id/textView11"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" " />

<TextView
android:id="@+id/avgVeloLastView"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
android:layout_height="wrap_content"
android:text="0.0" />

</TableRow>

<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent" >

<TextView
android:id="@+id/textView14"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Delayed average velocity:" />

<TextView
android:id="@+id/textView13"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=" " />

<TextView
android:id="@+id/delayedAvgTextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0.0" />
</TableRow>

</TableLayout>
@@ -209,14 +269,47 @@
<LinearLayout
android:id="@+id/trackViewStack"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_height="500dp"
android:orientation="vertical"
app:layout_constraintBottom_toTopOf="@+id/linearLayout"
app:layout_constraintTop_toTopOf="parent"
tools:layout_editor_absoluteX="8dp">

</LinearLayout>

<androidx.constraintlayout.widget.ConstraintLayout
android:id="@+id/constraintLayout"
android:layout_width="0dp"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="@+id/linearLayout"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent">

<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Delay:" />

<SeekBar
android:id="@+id/simDelaySeekBar"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:max="1000"
android:min="0"
app:layout_constraintEnd_toStartOf="@+id/simDelayTextView"
app:layout_constraintStart_toEndOf="@+id/textView6"
app:layout_constraintTop_toTopOf="parent" />

<TextView
android:id="@+id/simDelayTextView"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:gravity="right"
android:text="0"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="match_parent"
@@ -252,6 +345,15 @@
android:onClick="onStopButtonClick"
android:text="Stop" />

<Button
android:id="@+id/clearButton"
style="@style/Widget.AppCompat.Button.Borderless"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="onClearButtonClick"
android:text="clear" />

</LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>


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