JAVA学习，写的一个点灯小游戏

          之前写的一个点灯小游戏，没什么技术含量。

截图：

代码：
 类Start：

import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;
import javax.swing.UIManager;


public class Start {

    public static void main(String[] args) {
        // 使用Windows的界面风格
        try {
            UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
        } catch (Exception e) {
            e.printStackTrace();
        }
        new MainFrame().setVisible(true);
    }

}

类MainFrame:

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Random;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class MainFrame extends JFrame implements ActionListener {
   
    private static final long serialVersionUID = 1L;
    private static final int PER_PIECE_SIZE = 50;
    private static final int GAMEAREA_X = 10, GAMEAREA_Y = 20;
    private static final int MAX_PIECES_DEGREE = (Toolkit.getDefaultToolkit().getScreenSize().height - 100) / PER_PIECE_SIZE;

    private GamePanel gamePanel;
    private JPanel configPanel;
    private JTextField sizeTF;
    private JButton startBtn;
    private JLabel stepLabel;
    
    private int light[][];
    private int steps;
    private boolean isWin;
    private Random rand = new Random(System.currentTimeMillis());

    public MainFrame() {
        setTitle("点灯游戏");
        setSize(400, 300);
        //setLayout(null);
        setResizable(false);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        gamePanel = new GamePanel();
        gamePanel.setBorder(BorderFactory.createTitledBorder("规则：将所有灯调至同种颜色"));
        gamePanel.addMouseListener(new MyMouseListener());
        add(gamePanel, BorderLayout.CENTER);
        
        configPanel = new JPanel();
        add(configPanel, BorderLayout.SOUTH);
        
        sizeTF = new JTextField("4");
        sizeTF.setColumns(6);
        sizeTF.addKeyListener(new MyKeyListener());
        configPanel.add(sizeTF);
        
        startBtn = new JButton("开始");
        startBtn.addActionListener(this);
        configPanel.add(startBtn);
        
        stepLabel = new JLabel();
        configPanel.add(stepLabel);
        
        start();
    }
    
    public void init(int rows) {
        light = new int[rows][];
        for (int i = 0; i < rows; i++) {
            light[i] = new int[rows];
        }
        for (int i = 0; i < rows; i++) {
            int r = Math.abs(rand.nextInt() % (rows * rows));
            light[r / rows][r % rows] = 1;
        }
    }
    
    public void start() {
        int rows = 0;
        try {
            rows = Integer.valueOf(sizeTF.getText().trim());
            if (rows < 2) {
                JOptionPane.showMessageDialog(null, "大点行么？", "干", JOptionPane.INFORMATION_MESSAGE);
                sizeTF.setText("");
                sizeTF.requestFocus();
                return;
            } else if (rows > MAX_PIECES_DEGREE) {
                JOptionPane.showMessageDialog(null, "小点行么，你屏幕放的下？", "干", JOptionPane.INFORMATION_MESSAGE);
                sizeTF.setText("");
                sizeTF.requestFocus();
                return;
            }
        } catch (Exception e1) {
            JOptionPane.showMessageDialog(null, "不要乱输入，OK？", "无语", JOptionPane.ERROR_MESSAGE);
            sizeTF.setText("");
            sizeTF.requestFocus();
            return;
        }
        init(rows);
        int width = PER_PIECE_SIZE * rows + 20;
        int height = PER_PIECE_SIZE * rows + 30;
        gamePanel.setSize(width, height);
        gamePanel.repaint();
        steps = 0;
        stepLabel.setText("");
        setSize(width + 10, height + 70);
        repaint();
        setLocationRelativeTo(null);
        isWin = false;
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        start();
    }

    public void click(int x, int y) {
        int rows = light.length;
        for (int i = x - 1; i <= x + 1; i++) {
            if (i < 0 || i > rows - 1 || i == x) continue;
            light[y][i] = light[y][i] == 0 ? 1 : 0;
            //System.out.println("m" + i + " " + y);
        }
        for (int j = y - 1; j <= y + 1; j++) {
            if (j < 0 || j > rows - 1 || j == y) continue;
            light[j][x] = light[j][x] == 0 ? 1 : 0;
        }
        light[y][x] = light[y][x] == 0 ? 1 : 0;
    }
    
    public boolean win() {
        if (isWin == true) return true;
        int first = light[0][0];
        for (int i = 0; i < light.length; i++) {
            for (int j = 0; j < light[i].length; j++) {
                if (light[i][j] != first) return false;
            }
        }
        isWin = true;
        return true;
    }
    
    class MyKeyListener extends KeyAdapter {
        @Override
        public void keyPressed(KeyEvent e) {
            if (e.getKeyCode() == KeyEvent.VK_ENTER) {
                start();
            }
        }
    }
    
    class GamePanel extends JPanel {
        private static final long serialVersionUID = 1L;

        @Override
        public void paint(Graphics g) {
            super.paint(g);
            if (light == null) return;
            int rows = light.length;
            
            for (int i = 0; i < rows; i++) {
                for (int j = 0; j < rows; j++) {
                    if (light[i][j] == 0)
                        g.setColor(Color.BLACK);
                    else
                        g.setColor(Color.WHITE);
                    g.fillRect(j * PER_PIECE_SIZE + GAMEAREA_X, i * PER_PIECE_SIZE + GAMEAREA_Y, PER_PIECE_SIZE - 1, PER_PIECE_SIZE - 1);
                }
            }
            g.setColor(Color.GRAY);
            int tmp;
            for (int i = 0; i <= rows; i++) {
                tmp = PER_PIECE_SIZE * i - 1;
                g.drawLine(GAMEAREA_X - 1, tmp + GAMEAREA_Y, PER_PIECE_SIZE * rows + GAMEAREA_X - 1, tmp + GAMEAREA_Y);
                g.drawLine(tmp + GAMEAREA_X, GAMEAREA_Y - 1, tmp + GAMEAREA_X, PER_PIECE_SIZE * rows + GAMEAREA_Y - 1);
            }
            g.setColor(Color.RED);
            if (isWin) {
                g.drawString("You Win! steps:" + steps, 20, 65);
            }
        }
    }
    
    class MyMouseListener extends MouseAdapter {
        @Override
        public void mousePressed(MouseEvent e) {
            if (isWin || light == null) return;
            int rows = light.length;
            int x = e.getX() - 10;
            int y = e.getY() - 20;
            if (x < 0 || x >= PER_PIECE_SIZE * rows || y < 0 || y >= PER_PIECE_SIZE * rows) return;
            x /= PER_PIECE_SIZE;
            y /= PER_PIECE_SIZE;
            
            //System.out.println(x + " " +y);
            switch (e.getButton()) {
                case MouseEvent.BUTTON1:
                    click(x, y);
                    break;
                case MouseEvent.BUTTON2:
                    return;
                case MouseEvent.BUTTON3:
                    light[y][x] = light[y][x] == 0 ? 1 : 0;
                    break;
            }
            win();
            steps++;
            stepLabel.setText("步数：" + steps);
            gamePanel.repaint();
        }
    }
}