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     - GREEN: paint a green dot 
8     - YELLOW: paint a yellow dot 
9     - RANDOM: paints a random colored dot 
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   
24       private void interpreter () {
25   
26           // CREATE OBJECTS TO THINK WITH
27           SPainter miro = new SPainter("Dot Thing",400,400);
28           miro.setScreenLocation(0,0);
29           SCircle dot = new SCircle(180);
30   
31           //REPEATED;Y TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
32           while (true) {
33               String command = JOptionPane.showInputDialog(null, "Command?");
34               if (command == null){ command = "exit";} //user clicked Cancel
35               if (command.equalsIgnoreCase("blue")) {
36                   miro.setColor(Color.BLUE);
37                   miro.paint(dot);
38               } else if (command.equalsIgnoreCase("red")) {
39                   miro.setColor(Color.RED);
40                   miro.paint(dot);
41               } else if (command.equalsIgnoreCase("green")) {
42                   miro.setColor(Color.GREEN);
43                   miro.paint(dot);
44               }else if (command.equalsIgnoreCase("yellow")) {
45                   miro.setColor(Color.YELLOW);
46                   miro.paint(dot);
47               } else if (command.equalsIgnoreCase("random")) {
48                   miro.setColor(randomColor());
49                   miro.paint(dot);
50               } else if (command.equalsIgnoreCase("help")) {
51                   JOptionPane.showMessageDialog(null, "Valid commands area: "
52                           + "RED | BLUE | GREEN | YELLOW | RANDOM | HELP | EXIT ");
53               } else if (command.equalsIgnoreCase("exit")) {
54                   miro.end();
55                   System.out.println("Thank you for viewing the dots ... ");
56                   break;
57               } else {
58                   JOptionPane.showMessageDialog(null, "Unrecognizable command: ");
59               }
60           }
61       }
62   
63       private Color randomColor() {
64           int rv = (int) (Math.random()*256);
65           int gv = (int) (Math.random()*256);
66           int bv = (int) (Math.random()*256);
67           return new Color(rv,gv,bv);
68       }
69   
70       //INFRASTRUCTURE FOR SOME SIMPLE PAINTING
71   
72       public Interpreter3() {
73           interpreter();
74       }
75   
76       public static void main(String[] args) {
77           SwingUtilities.invokeLater(new Runnable() {
78               public void run() {
79                   new Interpreter3();
80               }
81           });
82       }
83   }
84