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: pain a blue dot 
6     * -RED: paint a red dot 
7     * -GREEN: paint a green dot 
8     * -YELLOW: paint a yellow dot 
9     * -RANDOM: paint a random color 
10    * -HELP: show a list of the commands in a dialog message box 
11    * -EXIT: terminate the program 
12    */
13   
14   package Interpreters;
15   
16   import java.awt.Color;
17   import javax.swing.JOptionPane;
18   import javax.swing.SwingUtilities;
19   import painter.SPainter;
20   import shapes.SCircle;
21   
22   public class Interpreter3 {
23       private void interpreter() {
24   
25           //CREATE OBJECTS TO THINK WITH
26           SPainter miro = new SPainter("Dot Thing", 400, 400);
27           miro.setScreenLocation(0, 0);
28           SCircle dot = new SCircle(180);
29   
30           //REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
31           while (true) {
32               String command = JOptionPane.showInputDialog(null, "Command?");
33               if (command == null) {
34                   command = "exit";
35               }
36               if (command.equalsIgnoreCase("blue")) {
37                   miro.setColor(Color.BLUE);
38                   miro.paint(dot);
39               } else if (command.equalsIgnoreCase("red")) {
40                   miro.setColor(Color.RED);
41                   miro.paint(dot);
42               } else if (command.equalsIgnoreCase("green")) {
43                   miro.setColor(Color.GREEN);
44                   miro.paint(dot);
45               } else if (command.equalsIgnoreCase("yellow")) {
46                   miro.setColor(Color.YELLOW);
47                   miro.paint(dot);
48               } else if ( command.equalsIgnoreCase("random")) {
49                   miro.setColor(randomColor());
50                   miro.paint(dot);
51               } else if (command.equalsIgnoreCase("help")) {
52                   JOptionPane.showMessageDialog(null, "Valid commands are: "
53                           + "RED|BLUE|GREEN|YELLOW|RANDOM|HELP|EXIT");
54               } else if (command.equalsIgnoreCase("exit")) {
55                   miro.end();
56                   System.out.println("Thank you for viewing the dots... ");
57                   break;
58               } else {
59                   JOptionPane.showMessageDialog(null, "Unrecongizable comand: ");
60               }
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       //INFRASTRUCTURE FOR SOME SIMPLE PAINTING
72   
73       public Interpreter3(){
74           interpreter();
75       }
76   
77       public static void main(String[] args) {
78           SwingUtilities.invokeLater(new Runnable() {
79               public void run() {
80                   new Interpreter3();
81               }
82           });
83       }
84   }
85   
86