1    package npw;
2    import java.awt.Color;
3    import java.util.Random;
4    import javax.swing.SwingUtilities;
5    import painter.SPainter;
6    import shapes.SCircle;
7    import shapes.SSquare;
8    
9    public class AlternateBalloons {
10   
11       //REQUIRED INFRASTRUCTURE
12   
13       public AlternateBalloons() {
14           paintTheImage();
15       }
16   
17       public static void main(String[] args) {
18           SwingUtilities.invokeLater(new Runnable() {
19               public void run() {
20                   new AlternateBalloons();
21               }
22           });
23       }
24   
25       //THE PAINTER DOING ITS THING
26   
27       private void paintTheImage() {
28           SPainter painter = new SPainter("Balloons", 600, 600);
29           paintSky(painter); // ask IntelliJ to generate the stub
30           int nrOfBalloons = 300;
31           paintBalloons(painter,nrOfBalloons); // asl InjelliJ to generate the stub
32       }
33   
34       private void paintSky(SPainter painter) {
35           painter.setColor(Color.BLUE);
36           SSquare sky = new SSquare(2000);
37           painter.paint(sky);
38       }
39   
40       private void paintBalloons(SPainter painter, int nrOfBalloons) {
41           int i = 1;
42           while (i <= nrOfBalloons) {
43               paintOneBalloon(painter); // ask IntelliJ to generate the stub
44               i = i + 1;
45           }
46       }
47   
48       private static Color randomColor() {
49           int rv = (int) (Math.random() * 256);
50           int gv = (int) (Math.random() * 256);
51           int bv = (int) (Math.random() * 256);
52           return new Color(rv, gv, bv);
53       }
54   
55       private void paintOneBalloon(SPainter painter) {
56           Random rgen = new Random();
57           int rn = rgen.nextInt(6);
58           if ( rn == 0  ) {
59               painter.setColor(Color.RED);
60           } else if (rn == 1 ) {
61               painter.setColor(Color.ORANGE);
62           } else if (rn == 2) {
63               painter.setColor(Color.BLUE);
64           } else if (rn == 3) {
65               painter.setColor(Color.YELLOW);
66           } else if (rn == 4) {
67               painter.setColor(Color.GREEN);
68           } else {
69               painter.setColor(Color.PINK);
70           }
71   
72           painter.move();
73           int balloonRadius = 30;
74           SCircle balloon = new SCircle(balloonRadius);
75           painter.paint(balloon);
76           painter.setColor(Color.BLACK);
77           painter.draw(balloon);
78       }
79   }
80