Java贪吃蛇游戏

package snake.game;

import java.awt.CardLayout;
import java.awt.Color;
import java.awt.Graphics;
 
import java.awt.Image;
import java.awt.Insets;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Timer;

import javax.imageio.ImageIO;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

public class SnakeGame implements ActionListener,KeyListener,MouseListener{

private long initTime ;
SnakeGame.InterClassSnake innerSnake;
boolean signal=false;
private Timer  tim;
int douX=120,douY=120,direct;
private ArrayList<Point>  snake = new ArrayList<Point>();
JFrame jf = new JFrame("贪吃蛇游戏");
JPanel  mainPane = new JPanel();
//欢迎界面、开始界面、游戏界面
WelcomPanel  wp = new WelcomPanel();
StartPanel  sp = new StartPanel();
JPanel  gamePane= new JPanel();
 
BallDemo bd ;

JButton [] btns = {new JButton("下一步"),new JButton("上一步"),new JButton("开始")};
Color[] yanse = {Color.black,Color.blue,Color.cyan,Color.green};
CardLayout gld= new CardLayout();
{
snake.add(new Point(90,150));
snake.add(new Point(90,120));
snake.add(new Point(90,90));
snake.add(new Point(90,60));
snake.add(new Point(90,30));

wp.setLayout(null);
wp.setBounds(0, 0, 500, 450);
btns[0].setMargin(new Insets(0,0,0,0));
btns[0].setBounds(350, 350, 50, 30); 
wp.add(btns[0]);

sp.setLayout(null);
sp.setBounds(0, 0, 500, 450);
btns[1].setMargin(new Insets(0,0,0,0));
btns[1].setBounds(300, 350, 50, 30);
btns[2].setMargin(new Insets(0,0,0,0));
btns[2].setBounds(350, 350, 50, 30);
sp.add(btns[1]);
sp.add(btns[2]);
 
btns[0].addActionListener(this);
btns[1].addActionListener(this);
btns[2].addActionListener(this);

gamePane.addMouseListener(this);
jf.addKeyListener(this);
mainPane.setLayout(gld); 
mainPane.add(wp,"1"); 
mainPane.add(sp, "2");
mainPane.add(gamePane, "3");
bd=new BallDemo(500,450,gamePane);
mainPane.setSize(500,450);
mainPane.setVisible(true);
}
public SnakeGame(){
innerSnake =this. new InterClassSnake();
jf.add(mainPane);
jf.setSize(500, 450);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
jf.setVisible(true);
}
/**
* @param args
*/
public static void main(String[] args) { 
     
       
        
SnakeGame sg=new SnakeGame();

} 
 
@Override
public void actionPerformed(ActionEvent e) {
if(e.getSource()==btns[0]){
gld.show(mainPane, "2");
}
if(e.getSource()==btns[1]){
gld.show(mainPane, "1");
}
if(e.getSource()== btns[2]){
gld.show(mainPane, "3");
initTime=System.currentTimeMillis();
tim = new Timer();
tim.scheduleAtFixedRate(new TimerCounts(initTime), 0,50000); //间隔大概10分钟提醒一次 
innerSnake.setDaemon(true);
innerSnake.start();
}

}

class InterClassSnake extends Thread {
   
        int tempDouX,tempDouY;
        
    public void run(){
    while(true){
   
    this.displaySnake(gamePane.getGraphics());
    this.displayDou(gamePane.getGraphics());
       if(signal){moveSnake();signal=false;gamePane.repaint();  }
           if(this.isEatDou()){
            snake.add(0, new Point(douX,douY));System.out.println("hello world 1");
            makeDou();          
           }
           if(this.isEatSelf() || this.isOverBounds()){System.out.println("hello world 2");
            JOptionPane.showMessageDialog(null, "你玩完了");
            System.exit(0);
           }
    }
    }
   /*造豆和造蛇、显示蛇、显示豆子函数*/ 
  public void makeDou(){
 douX=(int)((int)(Math.random()*10));
 douY=(int)((int)(Math.random()*8));
     if(douX>15)douX=douX-4;
     if(douY>14)douY=douY-4;
     douX=douX*30;douY=douY*30;
     for(Point x:snake){
    int tempX=x.x;
    int tempY=x.y;
    if(tempX==douX&&tempY==douY){   
   makeDou(); 
    }
       }
   }
   public void displaySnake(Graphics g){
  for(Point pos:snake){
  if(pos==snake.get(0)){
  g.setColor(Color.green);  
  g.fillRect(pos.x, pos.y, 30, 30);  
  }  
  else
      g.setColor(Color.red);  
      g.fillRect(pos.x, pos.y, 30, 30);
   }
   }
   public void displayDou(Graphics g){
       g.setColor(gamePane.getBackground());
       g.drawRect(tempDouX, tempDouY, 30, 30);
      g.setColor(Color.blue);
       g.fillRect(douX, douY, 30, 30);
       tempDouX=douX;tempDouY=douY;
   }
   //eat the bean ,return true if eat successfully,otherwise return false;
   public boolean  isEatDou(){
   if(douX==snake.get(0).x && douY==snake.get(0).y){
     return true;
    }
    return false;
   }
        public boolean isEatSelf(){
       int x=snake.get(0).x , y =snake.get(0).y;
        for(int i=snake.size()-1;i>1;i--){
      if(x==snake.get(i).x && y==snake.get(i).y)
        return true;
       }
     return false;
       }
       public boolean isOverBounds(){
         int x=snake.get(0).x,y=snake.get(0).y;
       if(x<0 || x>480 || y<0 ||y>450)
        return true;
       return false;
       }
 public void moveSnake(){ 
for(int i =snake.size()-1;i>0;i--){
snake.get(i).x=snake.get(i-1).x;
snake.get(i).y=snake.get(i-1).y;
} 
int tx=snake.get(0).x  ,  ty=snake.get(0).y;
switch(direct){
case  1:  if(snake.get(1).y<snake.get(0).y){System.out.println("不能往上");}
         else ty -=30;
          break;
case  2: if(tx-snake.get(1).x==0){
        tx=tx-30;   
        }
        else{
        ty=ty+30;  
        }         
        break;
case  3: if(tx-snake.get(1).x==0){
               tx=tx+30;   
                }
                else{
               ty=ty-30;    
                }        
                break;
case 4: if(snake.get(1).y>snake.get(0).y){System.out.println("不能往下");} 
       else  ty += 30;
case  5: 
                     break;
}
snake.remove(snake.size()-1);  
snake.add(0, new Point(tx,ty));
 
  }
    }
@Override
public void keyTyped(KeyEvent e) {
}
@Override
public void keyPressed(KeyEvent e) {
signal = true; 
switch(e.getKeyCode()){
   case  KeyEvent.VK_UP:   direct=1;                      
                      break;
   case  KeyEvent.VK_LEFT: direct =2;
                      break;
   case  KeyEvent.VK_RIGHT: direct =3;
                      break;
   case  KeyEvent.VK_DOWN: direct =4;
                           break;
   default :direct=5;
     
}

}
@Override
public void keyReleased(KeyEvent e) {

}
@Override
public void mouseClicked(MouseEvent e) {
// TODO Auto-generated method stub

}
@Override
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub

}
@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub

}
@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub

}
@Override
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub

}
class BallDemo {  //小球运动，
   private   int  x=50;  //初始位置
   private   int  y=50;
   private  final int  XSIZE=30;
   private  final int  YSIZE=30;
   private    int  dx=2;
   private    int  dy=2;
   private  int  tempX=50;
   private  int  tempY=50;
   private  final int retangleX;
   private  final int retangleY;
   private  JPanel pane; //用于得到背景面板
   private  Color  c=new Color(5);
   public BallDemo(int x,int y,JPanel jtp){
   retangleX=x;
   retangleY=y;
   this.pane=jtp;
   }
 
   public void left(){
       x -= dx;
   }
   public void right(){
       x += dx;
   }
   public void  up(){
       y -= dy;
   }
   public void  down(){
       y += dy;
   }
   public void move(){
       x += dx;
       y += dy;
       if(x<2){
          dx = -dx;
       }
       if(x+XSIZE>retangleX){
           dx = -dx;
       }
       if(y<YSIZE){  
           dy =  -dy;
       }
       if(y+YSIZE>=retangleY){            
          dy = -dy;
       }
   }
   protected void setColor(Color co){
   this.c=co;
   }
   public void paint(Graphics g){
       g.setColor(pane.getBackground());  //这条语句用于擦除小球轨迹,让这条语句不起作用你就知道了
       g.fillOval(tempX, tempY, XSIZE, YSIZE);
       g.setColor(c);       
       g.fillOval(x, y, XSIZE, YSIZE);
       tempX=x;tempY=y;
        
   }  
   
} 
}
//定时器类，工作任务类
class  TimerCounts extends  java.util.TimerTask{

private long init;
private JFrame jf=new JFrame("游戏时间提示框");
private JLabel label = new JLabel ();
public TimerCounts(long i){
this.init=i;
jf.setSize(200, 100);
jf.add(label);
jf.setVisible(true);
}
@Override
public  void run(){
long j=System.currentTimeMillis();
byte tim =(byte)( (j-init)/6000); //minutes
if(tim>=20){
JOptionPane.showMessageDialog(null,"你已经玩了很久了，要退出游戏休息了");
System.exit(0);
}
else{
   label.setText("游戏时间已经过了"+tim+"分钟");
}

}
}

//欢迎界面
class  WelcomPanel extends JPanel{

private static final long serialVersionUID = 1L;
Image img;
WelcomPanel(){
try{
img = ImageIO.read(new File("e:\\ok1.jpg"));
}catch(IOException e){
System.out.println("welcompanel");
}
}
@Override
public void paintComponent(Graphics g){
super.paintComponent(g);
g.drawImage(img, getX(), getY(), null);
}
}
//开始界面
class  StartPanel extends JPanel{

private static final long serialVersionUID = 1L;
Image img;
StartPanel(){
try{
img = ImageIO.read(new File("e:\\ok2.jpg"));
}catch(IOException e){
System.out.println("startpanel");
}
}
@Override
public void paintComponent(Graphics g){
super.paintComponent(g);
g.drawImage(img, getX(), getY(), null);
}
}