RunTetris.java

package org.cis120.tetris;

import java.awt.*;
import java.awt.event.*;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import javax.swing.*;

/**
 * Game Main class that specifies the frame and widgets of the GUI
 */
public class RunTetris implements Runnable {
    public void run() {
        // NOTE : recall that the 'final' keyword notes immutability even for
        // local variables.

        // Top-level frame in which game components live.
        final JFrame frame = new JFrame("Tetris");
        frame.setLocation(300, 100);

        // JOptionPane.showMessageDialog(frame, "test");
        String instructions = "The goal is to last as long as possible by clearing rows "
                + "by moving pieces. \n"
                + "Rows are cleared when they are filled up. \n"
                + "Use your arrow keys to move the pieces. Up arrow rotates the piece. Space bar drops the piece"
                + " straight down. \n"
                + "Have fun!";
        JOptionPane.showMessageDialog(frame, instructions, "How To Play", 1);

        // Status panel
        final JPanel status_panel = new JPanel();
        frame.add(status_panel, BorderLayout.SOUTH);
        final JLabel status = new JLabel("Running...");
        status_panel.add(status);

        // Main playing area
        final Board court = new Board(status, 10, 20);
        frame.add(court, BorderLayout.CENTER);

        // Reset button
        final JPanel control_panel = new JPanel();
        frame.add(control_panel, BorderLayout.LINE_END);
//        control_panel.setLayout(new BoxLayout(control_panel, BoxLayout.Y_AXIS));
        control_panel.setPreferredSize(new Dimension(200, 600));
        // Note here that when we add an action listener to the reset button, we
        // define it as an anonymous inner class that is an instance of
        // ActionListener with its actionPerformed() method overridden. When the
        // button is pressed, actionPerformed() will be called.
        final JButton reset = new JButton("Start Over");
        reset.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                court.startOver();
            }
        });
        
        //Button that pauses or unpauses the game
        final JButton pausePlay = new JButton("Pause");
        pausePlay.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                court.pausePlay();
                String pp = pausePlay.getText();
                if (pp.equals("Pause")) {
                	pausePlay.setText("Play");
                } else {
                	pausePlay.setText("Pause");
                }
            }
        });
        pausePlay.setSize(reset.getSize());
        
        NextDisplay upcoming = new NextDisplay();
        upcoming.setSize(150, 240);
        upcoming.setBorder(BorderFactory.createTitledBorder(BorderFactory.createLineBorder(Color.black), "Next"));

        //Adding a listener so the NextDisplay can be updated
        court.addPropertyChangeListener(new PropertyChangeListener() {
			@Override
			public void propertyChange(PropertyChangeEvent evt) {
				upcoming.update(court.getNextPieces());
				upcoming.repaint();
			}
        	
        });
        //Adding the buttons, and NextDisplay
        control_panel.add(pausePlay);
        control_panel.add(reset);
        control_panel.add(upcoming);
        

        // Put the frame on the screen
        frame.pack();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);

        // Start game
        court.reset();
    }
}