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 the commands in a dialog message box 
8    -EXIT: terminate the program 
9     */
10   
11   package interpreters;
12   
13   import java.awt.Color;
14   import javax.swing.JOptionPane;
15   import javax.swing.SwingUtilities;
16   import painter.SPainter;
17   import shapes.SCircle;
18   
19   public class Interpreter3 {
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 on Cancel
31   
32               if (command.equalsIgnoreCase("blue") ) {
33                   miro.setColor(Color.BLUE);
34                   miro.paint(dot);
35               }else if (command.equalsIgnoreCase("random")) {
36                   miro.setColor(randomColor());
37                   miro.paint(dot);
38   
39               }else if (command.equalsIgnoreCase("red")) {
40                   miro.setColor(Color.RED);
41                   miro.paint(dot);
42   
43   
44               }else if (command.equalsIgnoreCase("help")) {
45                   JOptionPane.showMessageDialog(null,"Valid commands are: "
46                           + "RED | BLUE | GREEN | YELLOW | RANDOM | HELP | EXIT ");
47   
48               } else if (command.equalsIgnoreCase("yellow")) {
49                   miro.setColor(Color.YELLOW);
50                   miro.paint(dot);
51   
52               }else if (command.equalsIgnoreCase("green")){
53                   miro.setColor(Color.GREEN);
54                   miro.paint(dot);
55   
56   
57   
58   
59               }else if (command.equalsIgnoreCase("exit")){
60                   miro.end();
61                   System.out.println("Thank you for viewing the dots ...");
62                   break;
63   
64   
65   
66               }else {
67                   JOptionPane.showMessageDialog(null, "Unrecognizable Command: "
68                           + command.toUpperCase());
69               }
70           }
71       }
72       // INFRASTRUCTURE FOR SOME SIMPLE PAINTING
73   
74       public Interpreter3() {
75           interpreter();
76       }
77       private static Color randomColor() {
78           int rv = (int)(Math.random()*256);
79           int gv = (int)(Math.random()*256);
80           int bv = (int)(Math.random()*256);
81           return new Color(rv,gv,bv);
82       }
83   
84       public static void main(String[] args) {
85           SwingUtilities.invokeLater(new Runnable() {
86               public void run() {
87                   new Interpreter3();
88   
89               }
90           });
91       }
92   }
93   
94   
95