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     * -HELP: show a list of the commands in a dialog message box 
10    * -RANDOM 
11    * -EXIT: terminate the program 
12    */
13   package interpreters;
14   
15   import java.awt.Color;
16   import javax.swing.JOptionPane;
17   import javax.swing.SwingUtilities;
18   import shapes.SCircle;
19   import painter.SPainter;
20   
21   public class Interpreter3 {
22   
23       private void interpreter() {
24   
25           //CREAT OBJECTS TO THINK WITH
26   
27           SPainter miro = new SPainter("Dot thing", 400, 400);
28           miro.setScreenLocation(0, 0);
29           SCircle dot = new SCircle(180);
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               } // user clicked on Cancel
36               if (command.equalsIgnoreCase("blue")) {
37   
38                   miro.setColor(Color.BLUE);
39                   miro.paint(dot);
40               } else if (command.equalsIgnoreCase("red")) {
41                   miro.setColor(Color.RED);
42                   miro.paint(dot);
43   
44               } else if (command.equalsIgnoreCase("green")) {
45                   miro.setColor(Color.GREEN);
46                   miro.paint(dot);
47               } else if (command.equalsIgnoreCase("yellow")) {
48                   miro.setColor(Color.YELLOW);
49                   miro.paint(dot);
50   
51               } else if (command.equalsIgnoreCase("help")) {
52                   JOptionPane.showMessageDialog(null, "Valid commands are:" + "RED | BLUE| GREEN | YELLOW| HELP | EXIT| RANDOM ");
53   
54               } else if (command.equalsIgnoreCase("random")){
55                     miro.setColor(randomColor());
56                     miro.paint(dot);
57   
58   
59               } else if (command.equalsIgnoreCase("exit")) {
60                   miro.end();
61                   System.out.println("Thank you for viewing dots. . .");
62                   break;
63   
64               } else {
65                   JOptionPane.showMessageDialog(null, "Unrecognizable command:" + command.toUpperCase());
66   
67   
68               }
69   
70           }
71       }
72   
73       private static Color randomColor() {
74        int rv= (int)(Math.random()*256);
75        int gv= (int)(Math.random()*256);
76        int bv= (int)(Math.random()*256);
77   
78        return new Color(rv,gv,bv);
79   
80   
81       }
82   
83       //INFRASTRUCTURE  FOR SOME SIMPLE PAINTING
84       public  Interpreter3() {
85           interpreter();
86       }
87   
88       public static void main(String[]args) {
89           SwingUtilities.invokeLater(new Runnable() {
90               public void run() {
91                   new Interpreter3();
92   
93   
94   
95               }
96           });
97   
98   
99   
100      }
101  
102  
103  
104  }
105