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: paint a random colored dot
10  * - HELP: show a list of commands in the dialog message box
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 painter.SPainter;
19 import shapes.SCircle;
20 
21 /**
22  *
23  * @author mbilodea
24  */
25 public class Interpreter3 {
26     
27     private void interpreter() {
28         
29         // CREATE OBJECTS TO THINK WITH
30         SPainter micro = new SPainter("Dot Thing",400,400);
31         micro.setScreenLocation(0,0);
32         SCircle dot = new SCircle(180);
33         
34         // REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT
35         while ( true ) {
36             String command = JOptionPane.showInputDialog(null, "Command?");
37             if ( command == null ) { command = "exit"; } // user clicked on Cancel
38             if ( command.equalsIgnoreCase("blue") ) {
39                 micro.setColor(Color.BLUE);
40                 micro.paint(dot);
41             } else if ( command.equalsIgnoreCase("red") ) {
42                 micro.setColor(Color.RED);
43                 micro.paint(dot);
44             } else if ( command.equalsIgnoreCase("green") ) {
45                 micro.setColor(Color.GREEN);
46                 micro.paint(dot);
47             } else if ( command.equalsIgnoreCase("yellow") ) {
48                 micro.setColor(Color.YELLOW);
49                 micro.paint(dot);
50             } else if ( command.equalsIgnoreCase("random") ){
51                 micro.setColor(randomColor());
52                 micro.paint(dot);
53             } else if ( command.equalsIgnoreCase("help") ) {
54                 JOptionPane.showMessageDialog(null,"Valid commands are: "
55                         + "RED | BLUE | GREEN | YELLOW | RANDOM | HELP | EXIT ");
56             } else if ( command.equalsIgnoreCase("exit") ) {
57                 micro.end();
58                 System.out.println("Thank you for viewing the dots ...");
59                 break;
60             } else {
61                 JOptionPane.showMessageDialog(null, "Unrecognizable command: "
62                         + command.toUpperCase());
63             }
64         }
65     }
66     
67     // INFRASTRUCTURE FOR SOME SIMPLE PAINTING
68     
69     public Interpreter3() {
70         interpreter();
71     }
72 
73     public static void main(String[] args) {
74         SwingUtilities.invokeLater(new Runnable() {
75             public void run() {
76                 new Interpreter3();
77             }
78         });
79     }
80 
81     private Color randomColor() {
82         int rv = (int)(Math.random()*256);
83         int gv = (int)(Math.random()*256);
84         int bv = (int)(Math.random()*256);
85         return new Color(rv,gv,bv);
86     }
87     
88 }