本文实例为大家分享了java实现贪吃蛇小游戏，供大家参考，具体内容如下
有两个类，放在同一文件下下即可，背景图片，标题，蛇尾可自行更改
import java.awt.*;import javax.swing.*;import java.awt.event.*;public class MyJFrame extends JFrame{ public MyJFrame() { int x= Toolkit.getDefaultToolkit().getScreenSize().width; int y = Toolkit.getDefaultToolkit().getScreenSize().height; setLocation((x-800)/2, (y-800)/2); setSize(800,800); setVisible(true); setDefaultCloseOperation(EXIT_ON_CLOSE); setTitle("贪吃蛇"); setLayout(null); getLayeredPane().setLayout(null); JLabel background = new JLabel(new ImageIcon("C:\\Users\\HP\\Desktop\\javaa\\background3.jpg"));//注意此处路径 JLabel title = new JLabel(new ImageIcon("C:\\Users\\HP\\Desktop\\javaa\\title1.jpg"));//注意此处路径 background.setBounds(20,80,750,650); title.setBounds(0,0,800,75); getLayeredPane().add(background,new Integer(Integer.MIN_VALUE)); getLayeredPane().add(title,new Integer(Integer.MIN_VALUE+1)); ((JPanel)getContentPane()).setOpaque(false); MyPanel mypanel = new MyPanel(); mypanel.setBounds(0,0,getWidth(),getHeight()); add(mypanel); } public static void main(String[] args) { new MyJFrame(); }}
import java.awt.*;import javax.swing.*;import java.awt.event.*;import java.util.Random;public class MyPanel extends JPanel implements ActionListener{ int lenght ; int score1; Boolean jieshux = false; JLabel scorel = new JLabel("分数："+score1); JLabel lenghl = new JLabel("长度："+lenght); JLabel shibai = new JLabel("按下空格开始游戏!"); JLabel jieshu = new JLabel("游戏失败！按空格重新开始！"); String dir = "R"; Boolean isstart = false; int[][] snake = new int[300][2]; Random r = new Random(); int x,y; //初始化 public void initialize() { snake[0][0]=70; snake[0][1]=80; snake[1][0]=45; snake[1][1]=80; snake[2][0]=20; snake[2][1]=80; isstart = true; jieshux = false; lenght = 3; score1 = 0; dir = "R"; repaint(); } public MyPanel() { setLayout(null); scorel.setBounds(700, 20, 50, 30); lenghl.setBounds(700, 40, 50, 30); shibai.setBounds(300,400,200,60); shibai.setFont(new Font("黑体",Font.BOLD,20)); jieshu.setFont(new Font("黑体",Font.BOLD,20)); jieshu.setVisible(false); jieshu.setBounds(250,400,300,60); add(scorel); add(lenghl); add(shibai); add(jieshu); x = r.nextInt(29)*25+20; y = r.nextInt(25)*25+80; //this.setFocusable(true); //焦点获取 setOpaque(false); initialize(); Timer t = new Timer(200,this); this.addKeyListener(new KeyAdapter() { public void keyPressed(KeyEvent e) { if(e.getKeyCode()==KeyEvent.VK_SPACE && isstart==false) { isstart=true; }else if(e.getKeyCode()==KeyEvent.VK_SPACE && isstart==true &&jieshux == false){ isstart = false; }else if(e.getKeyCode()==KeyEvent.VK_W && isstart==true && dir!="D"&&jieshux == false) { dir="U"; }else if(e.getKeyCode()==KeyEvent.VK_A && isstart==true && dir!="R"&&jieshux == false) { dir="L"; }else if(e.getKeyCode()==KeyEvent.VK_D && isstart==true && dir!="L"&&jieshux == false) { dir="R"; }else if(e.getKeyCode()==KeyEvent.VK_S && isstart==true && dir!="U"&&jieshux == false) { dir="D"; }else if(e.getKeyCode()==KeyEvent.VK_SPACE && jieshux==true) { initialize(); } } }); t.start(); } @Override public void actionPerformed(ActionEvent e) { this.requestFocus(true); if(isstart&&dir.equals("R")&&!jieshux) { for(int i=0;i<lenght-1;i++) { if(snake[i][0]>=745) { //snake[i][0]=20; jieshux = !jieshux; //isstart = !isstart; break; }else { snake[lenght-i-1][0]=snake[lenght-i-2][0]; snake[lenght-i-1][1]=snake[lenght-i-2][1]; } } if(!jieshux) snake[0][0]=snake[1][0]+25; } else if(isstart&&dir.equals("D")&&!jieshux) { for(int i=0;i<lenght-1;i++) { if(snake[i][1]>=705) { //snake[i][1]=80; jieshux = !jieshux; //isstart = !isstart; break; }else { snake[lenght-i-1][0]=snake[lenght-i-2][0]; snake[lenght-i-1][1]=snake[lenght-i-2][1]; } } if(!jieshux) snake[0][1]=snake[1][1]+25; }else if(isstart&&dir.equals("U")&&!jieshux) { for(int i=0;i<lenght-1;i++) { if(snake[i][1]<=80) { //snake[i][1]=705; jieshux = !jieshux; //isstart = !isstart; break; }else { snake[lenght-i-1][0]=snake[lenght-i-2][0]; snake[lenght-i-1][1]=snake[lenght-i-2][1]; } } if(!jieshux) snake[0][1]=snake[1][1]-25; }else if(isstart&&dir.equals("L")&&!jieshux) { for(int i=0;i<lenght-1;i++) { if(snake[i][0]<=20) { jieshux = !jieshux; //isstart = !isstart; break; }else { snake[lenght-i-1][0]=snake[lenght-i-2][0]; snake[lenght-i-1][1]=snake[lenght-i-2][1]; } } if(!jieshux) snake[0][0]=snake[1][0]-25; } if(snake[0][1]==y&&snake[0][0]==x) { x = r.nextInt(29)*25+20; y = r.nextInt(25)*25+80; score1+=10; lenght++; snake[lenght-1][1]=snake[lenght-2][1]; snake[lenght-1][0]=snake[lenght-2][0]; add(scorel); add(lenghl); } if(isstart==false) { shibai.setVisible(true); }else { shibai.setVisible(false); if(jieshux == false) { jieshu.setVisible(false); }else { jieshu.setVisible(true); } } for(int i = 1;i<lenght;i++) { if(snake[0][0]==snake[i][0]&&snake[0][1]==snake[i][1]) { jieshux=true; } } if(isstart&&!jieshux)repaint(); } public void paint(Graphics g) { super.paint(g); //边界为（20，80），（770，730） scorel.setText("分数："+score1); lenghl.setText("长度："+lenght); g.drawLine(18, 78, 18, 732); g.drawLine(18, 78, 772, 78); g.drawLine(18, 732, 772, 732); g.drawLine(772, 78, 772, 732); //竖线 for(int i=20;i<=770;i+=25) { g.drawLine(i,80,i,730); //g.drawLine(0,i,600,i); } //横线 for(int i=80;i<=750;i+=25) { //g.drawLine(i,50,i,780); g.drawLine(20,i,770,i); } for(int i = 0;i<lenght;i++) { if(i>0) { g.drawImage(new ImageIcon("C:\\Users\\HP\\Desktop\\javaa\\body.png").getImage(), snake[i][0],snake[i][1],this);//注意此处路径 }else { g.fillOval(snake[i][0], snake[i][1], 25, 25); } } g.setColor(Color.red); g.fillOval(x, y, 25, 25); }}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
或者在河边放下一盏写着心愿的河灯，祝愿一切安好。
