1    /* 
2     *Program to paint a blue dot in the context of the Nonrespresentational 
3     * Painting World, NPW 
4     */
5    
6    package npw;
7    
8    import painter.SPainter;
9    import shapes.SCircle;
10   import shapes.SSquare;
11   
12   import javax.swing.*;
13   import java.awt.*;
14   import java.util.Scanner;
15   
16   
17   public class Stella {
18   
19       //THE SOLUTION TO THE BLUE DOT PROBLEM
20   
21       private void paintTheImage() {
22           SPainter painter = new SPainter("Stella",800,800);
23           SSquare square = new SSquare(700);
24           int nrOfSquares = nrOfSquares("Number of Squares");
25           double shrinkFactor = square.side()/(nrOfSquares);
26           Color color1 = randomColor1();
27           Color color2 = randomColor2();
28   
29           for(int i = nrOfSquares; i>0; i=i-1){
30               if(i%2==0){
31                   painter.setColor(color1);
32                   painter.paint(square);
33                   square.shrink(shrinkFactor);
34               }else{
35                   painter.setColor(color2);
36                   painter.paint(square);
37                   square.shrink(shrinkFactor);
38               }
39           }
40   }
41   
42   private Color randomColor1(){
43           int rv = (int) (Math.random()*256);
44           int gv = (int) (Math.random()*256);
45           int bv = (int) (Math.random()*256);
46           return new Color(rv,gv,bv);
47   }
48   private Color randomColor2(){
49           int rv = (int) (Math.random()*256);
50           int gv = (int) (Math.random()*256);
51           int bv = (int) (Math.random()*256);
52   
53           return new Color(rv,gv,bv);
54   }
55   
56   
57       private static int nrOfSquares(String prompt){
58           String nss = JOptionPane.showInputDialog(null, prompt+"?");
59           Scanner scanner = new Scanner(nss);
60           return scanner.nextInt();
61       }
62   
63      //REQUIRED INFRASTRUCTURE
64   
65   public Stella() {
66       paintTheImage();
67       }
68   public static void main (String[] args) {
69           SwingUtilities.invokeLater(new Runnable() {
70               public void run() {
71                   new Stella();
72               }
73           });
74   }
75   
76   }