1    /* 
2     * Program that paints 300 random colored balloons in a blue sky. 
3     *  It will feature commands. 
4     */
5    
6    package npw;
7    
8    import java.awt.Color;
9    import java.util.Random;
10   import javax.swing.SwingUtilities;
11   import painter.SPainter;
12   import shapes.SCircle;
13   import shapes.SSquare;
14   
15   public class AlternateBalloons {
16   
17       //REQUIRED INFRASTRUCTURE
18   
19       public AlternateBalloons() {
20           paintTheImage();
21       }
22   
23       public static void main(String[] args) {
24           SwingUtilities.invokeLater(new Runnable() {
25               @Override
26               public void run() {
27                   new AlternateBalloons();
28               }
29           });
30       }
31   
32       //THE PAINTER DOING ITS THING
33   
34       private void paintTheImage() {
35           SPainter painter = new SPainter("AlternateBalloons", 600, 600);
36           paintSky(painter); //ask IntelliJ to generate the stub
37           int nrOfBalloons = 300;
38           paintBalloons(painter,nrOfBalloons); //ask IntelliJ to generate the stub
39       }
40   
41       private void paintSky(SPainter painter) {
42           painter.setColor(Color.BLUE);
43           SSquare sky = new SSquare(2000);
44           painter.paint(sky);
45       }
46   
47       private void paintBalloons(SPainter painter, int nrOfBalloons) {
48           int i = 1;
49           while ( i <= nrOfBalloons) {
50               paintOneBalloon(painter); //ask IntelliJ to generate the stub
51               i = i + 1;
52           }
53       }
54   
55       private static Color randomColor() {
56           int rv = (int) (Math.random()*256);
57           int gv = (int) (Math.random()*256);
58           int bv = (int) (Math.random()*256);
59           return new Color( rv,gv,bv );
60       }
61   
62       private void paintOneBalloon(SPainter painter) {
63           Random rgen = new Random();
64           int rn = rgen.nextInt(6);
65           if ( rn == 0 ) {
66               painter.setColor(randomColor());
67           } else if ( rn == 1 ) {
68               painter.setColor(randomColor());
69           } else if ( rn == 2 ) {
70               painter.setColor(randomColor());
71           } else if ( rn == 3 ) {
72               painter.setColor(randomColor());
73           } else if ( rn == 4 ) {
74               painter.setColor(randomColor());
75           } else if ( rn == 5 )
76               painter.setColor(randomColor());
77   
78           painter.move();
79           int balloonRadius = 30;
80           SCircle balloon = new SCircle(balloonRadius);
81           painter.paint(balloon);
82           painter.setColor(Color.BLACK);
83           painter.draw(balloon);
84       }
85   }
86   
87