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在制作游戏之前，从来没有真正依赖过 Swings 布局管理器来绘制绘图，所以出于好奇和无聊，我开始这样做。我只是在面板上设置了一个具有不同颜色的按钮矩阵，其想法是稍后按钮将打开并显示您必须拍摄的动物。

问题是我添加到其中一个 jpanels 的 mouselistener 不响应单击按钮（或框架内的任何其他位置），而仅在调整框架大小时在框架的边框上响应，因此可见黑色区域。

侦听器（不做太多，但将侦听器添加到 Board）。

public class Game implements MouseListener {
JFrame frame;
Board board;

public Game() {
    this.frame = new JFrame("Shoot a Tile");
    this.board = new Board(20, 20);
    this.board.addMouseListener(this);
    this.frame.getContentPane().add(board);
    this.frame.pack();
    this.frame.setLocationRelativeTo(null);
    this.frame.setVisible(true);
    this.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

public static void main(String[] args) {
    new Game();
}

@Override
public void mouseClicked(MouseEvent e) {
    System.out.println("HELLO I WAS CLICKED AT: " + e.getPoint());

}

@Override
public void mouseEntered(MouseEvent e) {
    System.out.println("HELLO I ENTERED AT: " + e.getPoint());

}

@Override
public void mouseExited(MouseEvent e) {
    System.out.println("HELLO I EXITED AT: " + e.getPoint());

}

@Override
public void mousePressed(MouseEvent e) {
    System.out.println("HELLO I WAS PRESSED AT: " + e.getPoint());

}

@Override
public void mouseReleased(MouseEvent e) {
    System.out.println("HELLO I WAS RELEASED AT: " + e.getPoint());

}

董事会

public class Board extends JPanel {

private Tile[][] tiles;
private int row, column;
public static final Random rnd = new Random();

public Board(int row, int column) {
    this.row = row;
    this.column = column;
    this.tiles = new Tile[row][column];
    setBackground(Color.black);
    setLayout(new GridLayout(row, column));
    setTiles();
}

private void setTiles() {
    for (int i = 0; i < row; i++) {
        Color color = new Color(rnd.nextInt(256), rnd.nextInt(256),
                rnd.nextInt(256));
        for (int j = 0; j < column; j++) {
            tiles[i][j] = new Tile(color);
            add(tiles[i][j]);
        }
    }
}

}

瓷砖

public class Tile extends JButton {

private Color color;
private List<Particle> particles;
private int x, y, width, height;
private boolean destroyed;

public Tile(Color color) {
    this.color = color;
}

@Override
@Transient
public Color getBackground() {
    return color;
}

public void destroy() {
    this.destroyed = true;
}

public boolean isDestroyed() {
    return destroyed;
}

@Override
@Transient
public Dimension getPreferredSize() {
    return new Dimension(50, 40);
}}

代码非常简单，即使它在很多行上，也是最短的 SSCEE。

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