/* * This interpreter is intended to paint different colored dots in a window. * * The commands that the interpreter can recognize and respond to are: * - BLUE: paint a blue dot * - RED: paint a red dot * - GREEN: paint a green dot * - YELLOW: paint a yellow dot * - RANDOM: paint any color dot * - HELP: show a list of the commands in a dialog message box * - EXIT: terminate the program */ package interpreters; import painter.SPainter; import shapes.SCircle; import javax.swing.*; import java.awt.*; public class Interpreter3 { private void interpreter() { // CREATE OBJECTS TO THINK WITH SPainter miro = new SPainter("Dot Thing", 400, 400); miro.setScreenLocation(0, 0); SCircle dot = new SCircle(180); // REPEATEDLY TAKE A COMMAND FROM AN INPUT DIALOG BOX AND INTERPRET IT while (true) { String command = JOptionPane.showInputDialog(null, "Command?"); if (command == null) { command = "exit"; } // user clicked on Cancel if (command.equalsIgnoreCase("blue")) { miro.setColor(Color.BLUE); miro.paint(dot); } else if (command.equalsIgnoreCase("red")) { miro.setColor(Color.RED); miro.paint(dot); } else if (command.equalsIgnoreCase("green")) { miro.setColor(Color.GREEN); miro.paint(dot); } else if (command.equalsIgnoreCase("yellow")) { miro.setColor(Color.YELLOW); miro.paint(dot); } else if ( command.equalsIgnoreCase("random") ) { miro.setColor(randomColor()); miro.paint(dot); } else if (command.equalsIgnoreCase("help")) { JOptionPane.showMessageDialog(null, "Valid commands are: " + "RED | BLUE | GREEN | YELLOW | RANDOM | HELP | EXIT "); } else if (command.equalsIgnoreCase("exit")) { miro.end(); System.out.println("Thank you for viewing the dots ..."); break; } else { JOptionPane.showMessageDialog(null, "Unrecognizable command: " + command.toUpperCase()); } } } private static Color randomColor() { int rv = (int)(Math.random()*256); int gv = (int)(Math.random()*256); int bv = (int)(Math.random()*256); return new Color(rv,gv,bv); } // INFRASTRUCTURE FOR SOME SIMPLE PAINTING public Interpreter3() { interpreter(); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { new Interpreter3(); } }); } }