1    /* 
2    This interpreter is intended to paint different colored dots in a window. 
3     
4    The commands that the interpreter can recognize and respond to are: 
5    -Blue: paint a blue dot 
6    -Red: paint a red dot 
7    -Help: show a list of commands in a dialog message box 
8    -Exit: terminate the program 
9     */
10   
11   package interpreters;
12   import java.awt.Color;
13   import javax.swing.JOptionPane;
14   import javax.swing.SwingUtilities;
15   import painter.SPainter;
16   import shapes.SCircle;
17   
18   public class Interpreter3 {
19   
20       private void interpreter() {
21   
22           // Create objects to think with
23           SPainter miro = new SPainter("Dot Thing",400,400);
24           miro.setScreenLocation(0,0);
25           SCircle dot = new SCircle(180);
26   
27           // Repeatedly take a command from an input dialog box and interpret it
28           while (true) {
29               String command = JOptionPane.showInputDialog(null, "Command?");
30               if ( command == null ) { command = "exit"; } // user clicked cancel
31               if ( command.equalsIgnoreCase("blue") ) {
32                   miro.setColor(Color.blue);
33                   miro.paint(dot);
34               } else if ( command.equalsIgnoreCase("red") ) {
35                   miro.setColor(Color.red);
36                   miro.paint(dot);
37               } else if ( command.equalsIgnoreCase("help") ) {
38                   JOptionPane.showMessageDialog(null, "Valid commands are: " + "RED | BLUE | GREEN | YELLOW | RANDOM | HELP | EXIT ");
39               } else if ( command.equalsIgnoreCase("yellow") ) {
40                   miro.setColor(Color.yellow);
41                   miro.paint(dot);
42               } else if ( command.equalsIgnoreCase("green") ) {
43                   miro.setColor(Color.green);
44                   miro.paint(dot);
45               } else if ( command.equalsIgnoreCase("exit") ) {
46                   miro.end();
47                   System.out.println("Thank you for viewing the dots ...");
48                   break;
49               } else if  ( command.equalsIgnoreCase("random") ) {
50                   miro.setColor(randomColor());
51                   miro.paint(dot);
52               } else {
53                   JOptionPane.showMessageDialog(null, "Unrecognizable Command: " + command.toUpperCase());
54               }
55           }
56       }
57   
58       private static Color randomColor() {
59           int rv = (int)(Math.random()*256);
60           int gv = (int)(Math.random()*256);
61           int bv = (int)(Math.random()*256);return new Color(rv,gv,bv);
62       }
63   
64       public Interpreter3() {
65           interpreter();
66       }
67   
68       public static void main(String[] args) {
69           SwingUtilities.invokeLater(new Runnable() {
70               public void run() {
71                   new Interpreter3();
72               }
73           });
74       }
75   }
76