MIDP Programming - Java 2 Micro Edition Application Development - page 68

consumption.leave = true;
}
public void destroyApp (boolean forced) {
}
}
The consumption Thread is a separate class that monitors the power the Javagochi needs for
living. In the run() method, every 0.5 seconds the score is updated depending on the Javagochi 's
happiness and the small amount of body mass that is transformed back to life energy:
public class Consumption extends Thread {
Javagochi javagochi;
boolean leave = false;
public Consumption (Javagochi javagochi) {
this.javagochi = javagochi;
}
public void run() {
while (!leave) {
try {
sleep (500);
}
catch (InterruptedException e) {break;}
javagochi.score += 10 - javagochi.deviation;
javagochi.transform (-5);
}
}
}
Now that you know how a Javagochi works, it is your job to give the Javagochi an appropriate
appearance by implementing the missing Face class.
Scaling and Fitting
In many cases, it is a good idea to scale displayed graphics depending on the actual screen size.
Otherwise, the display will look nice on one particular device type, but won't fit the screen on devices
with a lower screen resolution or become unnecessarily small on devices with higher screen resolutions.
We will now show how scaling works for the Javagochi example. A picture of a Javagochi is
shown in Figure 3.19 . You will start by drawing the shape of the face, a simple ellipse. In this case, the
ellipse will reflect the Javagochi 's weight. If the Javagochi is at its ideal weight, the ellipse
becomes a circle.
Figure 3.19. A happy Javagochi at its ideal weight.