import java.util.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class TimerAnimation extends MIDlet{
private Display display;
private AnimationCanvas canvas;
private Timer timer;
private AnimateTimerTask timertask;

public TimerAnimation(){
display = Display.getDisplay(this);
timer = new Timer();
canvas = new AnimationCanvas(this);
timertask = new AnimateTimerTask(canvas);
timer.schedule(timertask, 0, 100);
}

protected void startApp(){
display.setCurrent(canvas);
}

protected void pauseApp(){}

protected void destroyApp(boolean unconditional){
notifyDestroyed();
}

public void exitMIDlet(){
destroyApp(true);
}
}

class AnimateTimerTask extends TimerTask{
private AnimationCanvas canvas;

public AnimateTimerTask(AnimationCanvas canvas){
this.canvas = canvas;
}

public final void run(){
if ((canvas.x_loc + canvas.radius + canvas.x_dir > canvas.getWidth()) ||
(canvas.x_loc - canvas.radius + canvas.x_dir < x_dir =" -canvas.x_dir;"> canvas.getHeight()) ||
(canvas.y_loc - canvas.radius + canvas.y_dir < y_dir =" -canvas.y_dir;" clean =" false;" change_way =" 0;" max_changes =" 50;" a_midlet =" a_midlet;" random =" new" radius =" 7;" exit =" new" fire =" getKeyCode(FIRE);" right =" getKeyCode(RIGHT);" left =" getKeyCode(LEFT);"> MAX_CHANGES){
init();
}
if (clean){
g.setColor(255, 255, 255);
g.fillRect(0, 0, getWidth(), getHeight());
clean = !clean;
}
g.setColor(red, green, blue);
g.fillArc( x_loc, y_loc, radius, radius, 0, 360);
}

private void init(){
x_loc = getWidth() / 2;
y_loc = getHeight() / 2;
x_dir = (random.nextInt() % 10);
if (x_dir == 0) x_dir = 1;
y_dir = (random.nextInt() % 10);
if (y_dir == 0) y_dir = 1;
change_way = 0;
clean = true;
changeColor();
}

protected void changeColor(){
red = (random.nextInt() >>> 1) % 256;
green = (random.nextInt() >>> 1) % 256;
blue = (random.nextInt() >>> 1) % 256;
}

public void commandAction(Command c, Displayable d){
String label = c.getLabel();
if (label.equals("Exit"))
a_midlet.exitMIDlet();
}

protected void keyPressed(int keyCode){
if (keyCode == fire)
init();
else if (keyCode == left)
radius = Math.max(1, --radius);
else if (keyCode == right)
radius = Math.min(getWidth() / 4, ++radius);
}
}