1 /*
 2  * This interpreter is intended to paint different clored 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 color dot
10  * -HELP: show a list of the commands in a 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 akc
24  */
25 public class Interpreter3 {
26 
27     private void interpreter(){
28         
29         // CREATE OBJECTS TO THINK WITH
30         SPainter miro = new SPainter ("Dot Thing",400,400);
31         miro.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                 miro.setColor(Color.BLUE);
40                 miro.paint(dot);
41             }else if (command.equalsIgnoreCase("red")){
42                 miro.setColor(Color.RED);
43                 miro.paint(dot);
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             }else if (command.equalsIgnoreCase("random")){
51                 miro.setColor(randomColor());
52                 miro.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              miro.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     // INFASTRUCTURE 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 static 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