Question

对于我正在制作的游戏，我希望播放器从菜单屏幕（Panel05）开始，然后单击按钮开始实际游戏（Panel00）。并且，在玩游戏时，如果他们输赢，当他们点击另一个按钮时，他们要么返回菜单，要么进入另一个级别。现在，面板都是独立的程序，有自己的驱动程序，我不确定如何让一个面板在另一个面板内工作，如果可能的话。我将不胜感激任何建议，答案或批评。下面是菜单面板

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;


public class Panel05 extends JPanel
{
 private BufferedImage myImage;
 private Graphics myBuffer;
 public JButton button1;

public Panel05()
{

  myImage = new BufferedImage(1000, 1000, BufferedImage.TYPE_INT_RGB);
  myBuffer = myImage.getGraphics();




  setLayout(null);


  button1 = new JButton();
  button1.setSize(100, 100);
  button1.setLocation(500,500);
  button1.setForeground(Color.WHITE);
  button1.setFont(new Font("Serif", Font.BOLD, 30));
  button1.setText("Start");
  button1.addActionListener(new B1Listener());
  button1.setBorder(null);
  button1.setOpaque(false);
  button1.setContentAreaFilled(false);
  button1.setBorderPainted(false);
  add(button1);
  setFocusable(true);  
}


public void paintComponent(Graphics g)
{
  ImageIcon Nintendo = new ImageIcon("trumpL.png");

  g.drawImage(Nintendo.getImage(), 0, 0, 1000, 1000, null);

}

private class B1Listener implements ActionListener
{
  public void actionPerformed(ActionEvent e)
  {


  }
 }
}

这是实际第一级游戏的面板。

 import javax.swing.*;
 import java.awt.*;
 import java.awt.event.*;
 import java.awt.Graphics;
 import java.awt.Image;
 import java.awt.image.BufferedImage;
 import javax.swing.Timer;


 public class Panel00 extends JPanel
{
 private BufferedImage myImage;
 private Graphics myBuffer;
 public Timer timer;
 public JButton button1;
 public JButton button2;
 public JLabel label1 = new JLabel("Good Choice!");
 public JLabel label2 = new JLabel("You're Fired!!");
 public int x = 5;      //CountDown from 5  
 public int delay = 1000;   //milliseconds
 boolean drawWin = false;
 boolean drawLose = false;



 public Panel00()
{

  myImage = new BufferedImage(1000, 1000, BufferedImage.TYPE_INT_RGB);
  myBuffer = myImage.getGraphics();




  setLayout(null);


  button1 = new JButton();
  button1.setSize(300, 200);
  button1.setLocation(100,150);
  button1.setFont(new Font("Serif", Font.BOLD, 18));
  button1.setText("<html><center>"+"Until we are able to determine and understand this problem"+"<br>"+" and the dangerous threat it poses, our country cannot be the victims of horrendous attacks"+"<br>"+"by people that believe only in Jihad, and have no sense of reason or respect for human life"+"</center></html>");
  button1.addActionListener(new B1Listener());
  button1.setBorder(null);
  button1.setOpaque(false);
  button1.setContentAreaFilled(false);
  button1.setBorderPainted(false);
  add(button1);

  button2 = new JButton();
  button2.setSize(300, 200);
  button2.setLocation(600,150);
  button2.setFont(new Font("Serif", Font.BOLD, 18));
  button2.setText("<html><center>"+"If ISIS wants to fight, fine with us. "+"<br>"+"We have wanted that fight for a long time. There is no room in the world for ISIS any more."+"<br>"+"The Muslims or us,  one of us will have to go."+"</center></html>");
  button2.addActionListener(new B2Listener());
  button2.setBorder(null);
  button2.setOpaque(false);
  button2.setContentAreaFilled(false);
  button2.setBorderPainted(false);
  add(button2);

  ActionListener counter = 
     new ActionListener() 
     {
        public void actionPerformed(ActionEvent evt) 
        { 
           repaint();
           x--;
           if (x == 0)
           {
              timer.stop();  
           }
        }
     };
  timer = new Timer(delay, counter);
  timer.start();


  setFocusable(true);  
}


public void paintComponent(Graphics g)
{
  ImageIcon Nintendo = new ImageIcon("trump speech.jpg");

  g.drawImage(Nintendo.getImage(), 0, 0, 1000, 1000, null);

  ImageIcon N = new ImageIcon("happy.JPG");

  g.setColor(Color.WHITE);
  g.fillOval(90,100,320,320);

  g.setColor(Color.WHITE);
  g.fillOval(590,100,320,320);

  g.setColor(Color.WHITE);
  g.setFont(new Font("Serif",Font.BOLD, 50));
  g.drawString(""+x,500,50);

  if (drawWin)
  {
     g.drawImage(N.getImage(), 0, 0, 1000, 1000, null); 
  }
  ImageIcon L = new ImageIcon("loser.JPG");
  if (drawLose)
  {
     g.drawImage(L.getImage(), 0, 0, 1000, 1000, null); 
  }

}

private class B1Listener implements ActionListener
{
  public void actionPerformed(ActionEvent e)
  {
     repaint();
     drawWin = true;

     label1.setLocation(250,650);
     label1.setSize(1000, 400);
     label1.setForeground(new Color(212, 175, 55));
     label1.setFont(new Font("Serif", Font.BOLD, 100));
     add(label1);

     button1.setEnabled(false);
     button2.setEnabled(false);

     button1.setText("");
     button2.setText("");

     timer.stop();

  }
 }

   private class B2Listener implements ActionListener
  {
  public void actionPerformed(ActionEvent e)
  {
     repaint();
     drawLose = true;

     label2.setLocation(500,700);
     label2.setSize(400, 400);
     label2.setForeground(Color.RED);
     label2.setFont(new Font("Serif", Font.BOLD, 40));
     add(label2);

     button1.setEnabled(false);
     button2.setEnabled(false);

     button1.setText("");
     button2.setText("");


     timer.stop();
  }
 }
}

Answer 1

建议：

首先，使用CardLayout交换JPanel。你需要另一个JPanel，一个使用CardLayout，你将上面的两个JPanel添加到第一个JPanel，并使用适当的String 常量，然后你可以随意交换JPanel。 CardLayout Tutorial将告诉您如何操作。我发布了一些可以在these links中找到的代码。 Here's a nice one。
代码中的其他严重问题 - 首先，从不读取图像或paintComponent方法中的任何其他文件。这种方法主要决定了GUI的感知响应能力，而且你永远不想放慢速度。但是，为什么呢？为什么不在图像中读取一次，将其存储在变量中，并用它完成？
也可以在覆盖中调用super.paintComponent(...)方法，否则你可能无法清除GUI的脏像素。
同时避免使用像瘟疫这样的空布局。虽然null布局和setBounds()似乎是Swing新手，比如创建复杂GUI的最简单和最好的方法，但是你创建的Swing GUI越多，在使用它们时会遇到更严重的困难。当GUI调整大小时，它们不会调整组件的大小，它们是增强或维护的皇室女巫，当它们被放置在滚动窗格中时它们完全失败，当它们在所有平台上观看时或者与原始平台不同的屏幕分辨率时它们看起来很糟糕

如何让Panel在另一个Panel中工作？

1 个答案: