1    /* 
2     * Program that paints 300 balloons of 6 different random colors 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       //Random Color
18       Color c1 = randomColor();
19       Color c2 = randomColor();
20       Color c3 = randomColor();
21       Color c4 = randomColor();
22       Color c5 = randomColor();
23       Color c6 = randomColor();
24   
25       //REQUIRED INFRASTRUCTURE
26   
27       public AlternateBalloons() {
28           paintTheImage();
29       }
30   
31       public static void main(String[] args) {
32           SwingUtilities.invokeLater(new Runnable() {
33               public void run() {
34                   new AlternateBalloons();
35               }
36   
37           });
38       }
39   
40       //THE PAINTER DOING ITS THING
41   
42       private void paintTheImage() {
43           SPainter painter = new SPainter("Alternate Balloons", 600, 600);
44           paintSky(painter); 
45           int nrOfBalloons = 300;
46           paintBalloons(painter,nrOfBalloons); 
47       }
48   
49       private void paintSky(SPainter painter) {
50           painter.setColor(Color.BLUE);
51           SSquare sky = new SSquare(2000);
52           painter.paint(sky);
53       }
54   
55       private void paintBalloons(SPainter painter, int nrOfBalloons) {
56           int i = 1;
57   
58           while (i <= nrOfBalloons) {
59               paintOneBalloon(painter); //ask IntelliJ to generate the stub
60               i = i + 1;
61           }
62       }
63   
64       private static Color randomColor(){
65           int rv = (int)(Math.random()*256);
66           int gv = (int)(Math.random()*256);
67           int bv = (int)(Math.random()*256);
68           return new Color(rv,gv,bv);
69       }
70   
71       private void paintOneBalloon(SPainter painter) {
72           Random rgen = new Random();
73           int rn = rgen.nextInt(6);
74   
75           if (rn == 0) {
76               painter.setColor(c1);
77           } else if (rn == 1) {
78               painter.setColor(c2);
79           } else if (rn == 2) {
80               painter.setColor(c3);
81           } else if (rn == 3) {
82               painter.setColor(c4);
83           } else if (rn == 4) {
84               painter.setColor(c5);
85           }else {
86               painter.setColor(c6);
87           }
88           painter.move();
89           int balloonRadius = 30;
90           SCircle balloon = new SCircle(balloonRadius);
91           painter.paint(balloon);
92           painter.setColor(Color.BLACK);
93           painter.draw(balloon);
94   
95       }
96   
97   
98   
99   }
100