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 painter.move(); 78 int balloonRadius = 30; 79 SCircle balloon = new SCircle(balloonRadius); 80 painter.paint(balloon); 81 painter.setColor(Color.BLACK); 82 painter.draw(balloon); 83 } 84 } 85 } 86