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利用Java实现贪吃蛇项目（附带源码和图片素材）_使用java进行贪吃蛇游戏的方法

作者：Monodyee | 2024-06-10 16:08:17

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使用java进行贪吃蛇游戏的方法

目录

程序的主类GameWin

工具类GameUtils

游戏父类GameObj

身体类BodyObj

食物类FoodObj

蛇头部HeadObj

图片资源

大家好，我是小刘！  

本篇文章将向各位介绍一个Java游戏项目，本次项目可以应用与毕业设计以及简历等！！！

运行结果如下

接下来就让我们进入代码的实现吧

首先新建一个项目，然后在项目里面新建一个存放图片的文件夹，将本次项目所需要的图片存放进去，图片资源在文章最后。（按照小刘下面这个方式去创建就可以啦！！一定要在项目中去创建！！）创建包的时候也记得更改一下名字哦！

程序的主类GameWin

  1. package Game;
  2.  
  3. import Game.utils.GameUtils;
  4.  
  5. import javax.swing.*;
  6. import java.awt.*;
  7. import java.awt.event.KeyAdapter;
  8. import java.awt.event.KeyEvent;
  9. import java.util.ArrayList;
  10. import java.util.List;
  11.  
  12. public class GameWin extends JFrame {
  13.  
  14.  
  15.     public static int state=0;
  16.     public int score=0;//分数
  17.     //定义双缓存图片
  18.     Image offScreeImage=null;
  19.  
  20.     //分数宽高
  21.     int winWidth=800;
  22.     int winHeight=600;
  23.  
  24.  
  25.  
  26.     public HeadObj headObj=new HeadObj(GameUtils.image3,60,570,this);
  27.  
  28.     public List<BodyObj> bodyObjList=new ArrayList<>();
  29.     public FoodObj foodObj=new FoodObj().getFood();
  30.     public void launch(){
  31.         this.setVisible(true);
  32.         this.setSize(winWidth,winHeight);
  33.         this.setLocationRelativeTo(null);
  34.         this.setTitle("好七蛇");
  35.         bodyObjList.add(new BodyObj(GameUtils.imagebody,30,570,this));
  36.         bodyObjList.add(new BodyObj(GameUtils.imagebody,0,570,this));
  37.  
  38.  
  39.         //键盘事件
  40.         this.addKeyListener(new KeyAdapter() {
  41.             @Override
  42.             public void keyPressed(KeyEvent e) {
  43.                 if (e.getKeyCode()==KeyEvent.VK_SPACE){
  44.                     switch (state){
  45.                         //未开始
  46.                         case 0:
  47.                             state=1;
  48.                             break;
  49.                         case 1:
  50.                             //游戏中
  51.                             state=2;
  52.                             repaint();
  53.                             break;
  54.                         case 2:
  55.                             //游戏暂停
  56.                             state=1;
  57.                             break;
  58.                         case 3:
  59.                             //失败后重新开始
  60.                             state=5;
  61.                             break;
  62.                         default:break;
  63.                     }
  64.                 }
  65.             }
  66.         });
  67.         while (true){
  68.             if (state==1) {
  69.                 repaint();
  70.             }
  71.             //失败重启
  72.             if (state==5){
  73.                 state=0;
  74.                 resetGame();
  75.             }
  76.             try {
  77.                 //1秒1000毫秒
  78.                 Thread.sleep(200);
  79.             } catch (InterruptedException e) {
  80.                 throw new RuntimeException(e);
  81.             }
  82.         }
  83.     }
  84.  
  85.     @Override
  86.     public void paint(Graphics g) {
  87.         //双缓存图片初始化
  88.         if (offScreeImage==null){
  89.             offScreeImage=this.createImage(winWidth,winHeight);
  90.         }
  91.         Graphics gImage=offScreeImage.getGraphics();
  92.  
  93.         //灰色背景
  94.         gImage.setColor(Color.gray);
  95.         gImage.fillRect(0,0,winWidth,winHeight);
  96.  
  97.         gImage.setColor(Color.black);
  98.        //横线x相同，y不同
  99.         for (int i = 0; i <=20; i++) {
  100.             //横线
  101.             gImage.drawLine(0,i*30,600,i*30);
  102.             //竖线
  103.             gImage.drawLine(i*30,0,i*30,600);
  104.  
  105.         }
  106.         for (int i =bodyObjList.size()-1;i>=0 ; i--) {
  107.             bodyObjList.get(i).paintSelf(gImage);
  108.             
  109.         }
  110.         headObj.paintSelf(gImage);
  111.         foodObj.paintSelf(gImage);
  112.         GameUtils.drawWork(gImage,score+" 分",Color.BLUE,50,650,300);
  113.         gImage.setColor(Color.gray);
  114.         prompt(gImage);
  115.  
  116.         g.drawImage(offScreeImage,0,0,null);
  117.  
  118.     }
  119.     //绘制提示语
  120.     void prompt(Graphics g){
  121.         if (state==0){
  122.             g.fillRect(120,240,400,70);
  123.             GameUtils.drawWork(g,"按下空格健开始游戏",Color.yellow,35,150,290);
  124.         }
  125.         //暂停
  126.         if (state==2){
  127.             g.fillRect(120,240,400,70);
  128.             GameUtils.drawWork(g,"游戏暂停，按空格继续",Color.yellow,35,150,290);
  129.         }
  130.         if (state==3){
  131.             g.fillRect(120,240,400,70);
  132.             GameUtils.drawWork(g,"游戏失败,按空格键重新开始 ",Color.red,35,150,290);
  133.         }
  134.         //通关
  135.         if (state==4){
  136.             g.fillRect(120,240,400,70);
  137.             GameUtils.drawWork(g,"达成条件游戏通关",Color.green,35,150,290);
  138.         }
  139.     }
  140.  
  141.     //未开始
  142.     //游戏重置
  143.     void resetGame(){
  144.         //关闭当前窗口
  145.         this.dispose();
  146.         //开启一个新窗口
  147.         String[] args={};
  148.         main(args);
  149.     }
  150.  
  151.     public static void main(String[] args) {
  152.         GameWin gameWin=new GameWin();
  153.         gameWin.launch();
  154.     }
  155. }

工具类GameUtils

  1. package Game.utils;
  2.  
  3. import java.awt.*;
  4.  
  5. public class GameUtils {
  6.     public static Image image=Toolkit.getDefaultToolkit().getImage("img/img.png");
  7.     public static Image image1=Toolkit.getDefaultToolkit().getImage("img/img_1.png");
  8.     public static Image image2=Toolkit.getDefaultToolkit().getImage("img/img_2.png");
  9.     public static Image image3=Toolkit.getDefaultToolkit().getImage("img/img_3.png");
  10.     public static Image imagebody=Toolkit.getDefaultToolkit().getImage("img/img_5.png");
  11.     public static Image imagefood=Toolkit.getDefaultToolkit().getImage("img/img_4.png");
  12.  
  13.     //绘制文字
  14.     public static void drawWork(Graphics g,String str,Color color,int size,int x,int y){
  15.         g.setColor(color);
  16.         g.setFont(new Font("仿宋",Font.BOLD,size));
  17.         g.drawString(str,x,y);
  18.     }
  19.  
  20.  
  21. }

游戏父类GameObj

  1. package Game;
  2.  
  3. import java.awt.*;
  4.  
  5. public class GameObject {
  6.  
  7.     //图片
  8.     Image img;
  9.     //坐标
  10.     int x;
  11.     int y;
  12.     //宽高
  13.     int width=30;
  14.     int height=30;
  15.     //窗口类的引用
  16.     GameWin frame;
  17.  
  18.     public Image getImg() {
  19.         return img;
  20.     }
  21.  
  22.     public void setImg(Image img) {
  23.         this.img = img;
  24.     }
  25.  
  26.     public int getX() {
  27.         return x;
  28.     }
  29.  
  30.     public void setX(int x) {
  31.         this.x = x;
  32.     }
  33.  
  34.     public int getY() {
  35.         return y;
  36.     }
  37.  
  38.     public void setY(int y) {
  39.         this.y = y;
  40.     }
  41.  
  42.     public int getWidth() {
  43.         return width;
  44.     }
  45.  
  46.     public void setWidth(int width) {
  47.         this.width = width;
  48.     }
  49.  
  50.     public int getHeight() {
  51.         return height;
  52.     }
  53.  
  54.     public void setHeight(int height) {
  55.         this.height = height;
  56.     }
  57.  
  58.     public GameWin getFrame() {
  59.         return frame;
  60.     }
  61.  
  62.     public void setFrame(GameWin frame) {
  63.         this.frame = frame;
  64.     }
  65.  
  66.     public GameObject(){
  67.     }
  68.  
  69.     public GameObject(Image img, int x, int y, GameWin frame) {
  70.         this.img = img;
  71.         this.x = x;
  72.         this.y = y;
  73.         this.frame = frame;
  74.     }
  75.  
  76.     public GameObject(Image img, int x, int y, int width, int height, GameWin frame) {
  77.         this.img = img;
  78.         this.x = x;
  79.         this.y = y;
  80.         this.width = width;
  81.         this.height = height;
  82.         this.frame = frame;
  83.     }
  84.  
  85.     //绘制自身
  86.     public void paintSelf(Graphics g){
  87.         g.drawImage(img,x,y,null);
  88.     }
  89. }

身体类BodyObj

  1. package Game;
  2.  
  3. import java.awt.*;
  4.  
  5. public class BodyObj extends GameObject{
  6.     public BodyObj(Image image,int x,int y,GameWin frame){
  7.         super(image,x,y,frame);
  8.     }
  9.  
  10.     @Override
  11.     public void paintSelf(Graphics g) {
  12.         super.paintSelf(g);
  13.     }
  14. }

食物类FoodObj

  1. package Game;
  2.  
  3. import Game.utils.GameUtils;
  4.  
  5. import java.awt.*;
  6. import java.util.Random;
  7.  
  8. public class FoodObj extends GameObject{
  9.  
  10.     //随机函数
  11.     Random r=new Random();
  12.     public FoodObj(){super();}
  13.  
  14.     public FoodObj(Image image,int x,int y,GameWin frame){
  15.         super(image,x,y,frame);
  16.     }
  17.     //获取食物
  18.     public FoodObj getFood(){
  19.         return new FoodObj(GameUtils.imagefood,r.nextInt(20)*30,(r.nextInt(19) +1)*30,this.frame);
  20.     }
  21.  
  22.     @Override
  23.     public void paintSelf(Graphics g) {
  24.         super.paintSelf(g);
  25.     }
  26. }

蛇头部HeadObj

  1. package Game;
  2.  
  3. import Game.utils.GameUtils;
  4.  
  5. import java.awt.*;
  6. import java.awt.event.KeyAdapter;
  7. import java.awt.event.KeyEvent;
  8. import java.util.List;
  9.  
  10. public class HeadObj extends GameObject{
  11.     //方向 up down left right
  12.     private String direction="right";
  13.  
  14.     public String getDirection() {
  15.         return direction;
  16.     }
  17.  
  18.     public void setDirection(String direction) {
  19.         this.direction = direction;
  20.     }
  21.  
  22.     public void move(){
  23.         //蛇身移动
  24.         java.util.List<BodyObj> bodyObjList=this.frame.bodyObjList;
  25.         for (int i = bodyObjList.size()-1;i>=1;i--) {
  26.             bodyObjList.get(i).x=bodyObjList.get(i-1).x;
  27.             bodyObjList.get(i).y=bodyObjList.get(i-1).y;
  28.             //蛇头与身体的碰撞判断
  29.             if (this.x==bodyObjList.get(i).x&&this.y==bodyObjList.get(i).y){
  30.                 //失败
  31.                 GameWin.state=3;
  32.             }
  33.  
  34.         }
  35.         bodyObjList.get(0).x=this.x;
  36.         bodyObjList.get(0).y=this.y;
  37.  
  38.         //蛇头移动
  39.         switch (direction){
  40.             case "up":
  41.                 y-=height;
  42.                 break;
  43.             case "down":
  44.                 y+=height;
  45.                 break;
  46.             case "left":
  47.                 x-=width;
  48.                 break;
  49.             case "right":
  50.                 x+=width;
  51.                 break;
  52.         }
  53.     }
  54.     public HeadObj(Image img, int x, int y, GameWin frame) {
  55.         super(img, x, y, frame);
  56.         this.frame.addKeyListener(new KeyAdapter() {
  57.             @Override
  58.             public void keyPressed(KeyEvent e) {
  59.                 changeDirection(e);
  60.             }
  61.         });
  62.     }
  63.  
  64.     public void changeDirection(KeyEvent e){
  65.         switch (e.getKeyCode()){
  66.             case KeyEvent.VK_A:
  67.                 if (!"right".equals(direction)){
  68.                     direction="left";
  69.                     img= GameUtils.image2;
  70.                 }
  71.                 break;
  72.             case KeyEvent.VK_D:
  73.                 if (!"left".equals(direction)){
  74.                     direction="right";
  75.                     img= GameUtils.image3;
  76.                 }
  77.                 break;
  78.             case KeyEvent.VK_W:
  79.                 if (!"down".equals(direction)){
  80.                     direction="up";
  81.                     img= GameUtils.image;
  82.                 }
  83.                 break;
  84.             case KeyEvent.VK_S:
  85.                 if (!"up".equals(direction)){
  86.                     direction="down";
  87.                     img= GameUtils.image1;
  88.                 }
  89.                 break;
  90.             default:
  91.                 break;
  92.         }
  93.     }
  94.  
  95.     @Override
  96.     public void paintSelf(Graphics g) {
  97.         super.paintSelf(g);
  98.         //蛇吃食物
  99.         FoodObj food=this.frame.foodObj;
  100.  
  101.         Integer newX=null;
  102.         Integer newY=null;
  103.         if (this.x==food.x&&this.y==food.y){
  104.             this.frame.foodObj=food.getFood();
  105.             BodyObj lastBody=this.frame.bodyObjList.get(this.frame.bodyObjList.size()-1);
  106.             newX= lastBody.x;
  107.             newY= lastBody.y;
  108.             //分数+1
  109.             this.frame.score++;
  110.  
  111.  
  112.         }
  113.         //通关判断
  114.         if (this.frame.score>=15){
  115.             //通过
  116.             GameWin.state=4;
  117.         }
  118.         move();
  119.         if (newX!=null&& newY!=null){
  120.             this.frame.bodyObjList.add(new BodyObj(GameUtils.imagebody,newX,newY,this.frame));
  121.         }
  122.  
  123.         //越界
  124.         if (x<0){
  125.             x=570;
  126.         }else if (x>570){
  127.             x=0;
  128.         }else if (y<30){
  129.             y=570;
  130.         } else if (y>570) {
  131.             y=30;
  132.         }
  133.     }
  134. }

图片资源

最后希望大家多多点赞支持小刘

img.png img_1.png-----img_5png

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