int x; int y; int radius; private int red; private int green; private int blue;

(1)

1 // 1. Beispiel vom 19.11.2012

final int WIDTH = 500;

final int HEIGHT = 600;

Fireball fireball;

public void setup() { size(WIDTH, HEIGHT);

fireball = new Fireball();

ellipseMode(RADIUS);

}

public void draw() { background(255);

fireball.zeichne();

// fireball.draw();

}

class Fireball { int x;

int y;

int radius;

private int red;

private int green;

private int blue;

(2)

2 public Fireball() {

x = (int) random(50, width-50);

y = (int) random(50, height-50);

radius = (int) random(20, 100);

red = (int) random(0, 255);

green = (int) random(0, 255);

blue = (int) random(0, 255);

}

public void zeichne() { fill(red, green, blue);

ellipse(x, y, radius, radius);

int n = (int) random(0, 20);

noFill();

for (int i=0; i<n; i++) {

stroke((int) random(0, 255), (int) random(0, 255), (int) random(0, 255));

ellipse(x, y,

radius+i*random(1, 10), radius+i*random(1, 10) );

} } }

(3)

3 // 2. Beispiel vom 19.11.2012

final int WIDTH = 800;