mainframe.java

程序包括小型的飞机与导弹游戏的源代码和记事本的源代码

package com.zk1;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class MainFrame extends JFrame
{
  private JMenuBar menuBar=new JMenuBar();
  private JMenu mainMenu=new JMenu("游戏");
  private JMenuItem pause=new JMenuItem("暂停");
  private JMenuItem resume=new JMenuItem("继续");
  MainPanel mainPanel=new MainPanel(this);
  public MainFrame(String title)
  {
    super(title);
    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    this.setResizable(false);
    int sWidth=(int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();
    int sHeight=(int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();
    int width=1010;//1000,600
    int height=660;
    this.setBounds((sWidth-width)/2,(sHeight-height)/2,width,height);
    initComponents();
    initListener();
  }
  public void gameOver()
  {
    pause.setEnabled(false);
    resume.setEnabled(false);
  }
  private void initComponents()
  {
    this.setJMenuBar(menuBar);
    menuBar.add(mainMenu);
    mainMenu.add(pause);
    mainMenu.add(resume);
    this.getContentPane().add(mainPanel);
    resume.setEnabled(false);
  }
  private void initListener()
  {
    this.addKeyListener(new KeyAdapter(){
      public void keyPressed(KeyEvent e)
      {
        int sign=mainPanel.getSign();
        switch(e.getKeyCode())
        {
          case 37:
            sign=MainPanel.LEFT;
            break;
          case 38:
            sign=MainPanel.UP;
            break;
          case 39:
            sign=MainPanel.RIGHT;
            break;
          case 40:
            sign=MainPanel.DOWN;
            break;
        }
        mainPanel.setSign(sign);
      }
    });
    pause.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent e)
      {
        pause.setEnabled(false);
        resume.setEnabled(true);
        mainPanel.setIsPause(true);
      }
    });
    resume.addActionListener(new ActionListener(){
      public void actionPerformed(ActionEvent e)
      {
        pause.setEnabled(true);
        resume.setEnabled(false);
        mainPanel.setIsPause(false);
      }
    });
  }
  public static void main(String[] args)
  {
    JDialog.setDefaultLookAndFeelDecorated(true);
    JFrame.setDefaultLookAndFeelDecorated(true);
    MainFrame frame=new MainFrame("贪吃蛇");
    frame.setVisible(true);
  }
}