我是java新手,我正在开发一款游戏。基本上,有泡沫上升,用户必须通过将鼠标移到它们上来弹出它们。
我已经在JFrame上制作了一个动画,我需要在顶部为MouseMotionListener添加一个JPanel。但是,当我在JFrame顶部添加JPanel时(即使将setOpaque设置为false),它仍然不允许我在下面看到我的动画。你可以在下面看到我的代码。如果您发现编码错误,请告诉我。
我有两个解决方案,要么在JPanel中动画(我不知道该怎么做),要么让JPanel透明。
游戏类:
public class Game extends JPanel{
public static final int WINDOW_WIDTH = 600;
public static final int WINDOW_HEIGHT = 400;
private boolean insideCircle = false;
private static boolean ifPaused = false;
private static JPanel mainPanel;
private static JLabel statusbar;
private static int clicks = 0;
//Creates a Bubbles object Array
Bubbles[] BubblesArray = new Bubbles[5];
public Game() {
//initializes bubble objects
for (int i = 0; i < BubblesArray.length; i++)
BubblesArray[i] = new Bubbles();
}
public void paint(Graphics graphics) {
//makes background white
graphics.setColor(Color.WHITE);
graphics.fillRect(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
//paints square objects to the screen
for (Bubbles aBubblesArray : BubblesArray) {
aBubblesArray.paint(graphics);
}
}
public void update() {
//calls the Square class update method on the square objects
for (Bubbles aBubblesArray : BubblesArray) aBubblesArray.update();
}
public static void main(String[] args) throws InterruptedException {
statusbar = new JLabel("Default");
mainPanel = new JPanel();
mainPanel.setOpaque(false);
mainPanel.setBackground(new Color(0,0,0,0));
mainPanel.setVisible(true);
mainPanel.addMouseMotionListener(new MouseAdapter() {
@Override
public void mouseMoved(MouseEvent e) {
statusbar.setText(String.format("Your mouse is at %d, %d", e.getX(), e.getY()));
}
public void mouseExited(MouseEvent e){
ifPaused = true;
}
public void mouseEntered(MouseEvent e){
ifPaused = false;
}
});
Game game = new Game();
JFrame frame = new JFrame();
frame.add(game);
frame.add(mainPanel);
frame.add(statusbar, BorderLayout.SOUTH);
frame.setVisible(true);
frame.setSize(WINDOW_WIDTH, WINDOW_HEIGHT);
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setTitle("Bubble Burst");
frame.setResizable(false);
frame.setLocationRelativeTo(null);
while (true) {
if (!ifPaused){
game.update();
game.repaint();
Thread.sleep(5);
}
}
}
}
答案 0 :(得分:0)
您的game
面板未显示,因为您要将两个组件添加到BorderLayout
的同一位置(BorderLayout.CENTER
)。因此,{&#34}没有添加{&#34}。 mainPanel
,它正在取代它。话虽如此:
看起来你的game
实际上正在做任何事情,除了听老鼠的动作。您是否可以将mainPanel
添加到MouseAdapter
对象,因为它扩展game
,如下所示:
JPanel