贪吃蛇代码和基本图像资源（狂神）

超、凢脫俗 2023-10-10 14:19 14阅读 0赞

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java 代码做一个贪吃蛇小游戏，熟悉基本的Java知识

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## 一、建立步骤 ##

步骤  
1.创建启动框

2.创建画板框

3.加入数据源，如图片等

4.在画板中添加数据源

5.添加键盘点击事件和处理点击事件（开始键）

6.添加上下左右方向（上下左右键）

7.游戏结束规则  
8.游戏积分系统  
9 .蛇的长度变化  
10.食物变化。

### 1.启动游戏框 ###

主画板显示区

package com.pan.snake;
    
    import javax.swing.*;
    
    public class StartGames extends JFrame {
    
        public static void main(String[] args){
            //创建一个静态窗口 JFrame
            JFrame frame = new JFrame("潘胜志——java 贪吃蛇小游戏");
            //设置他的大小
            frame.setBounds(10,10,900,675 );
    
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            //将面板加到frame
            frame.add(new ContentPanes());
            frame.setVisible(true);
        }
    }

### 2.画板区 ###

代码如下（示例）：

package com.pan.snake;
    
    import javax.swing.*;
    import javax.swing.text.AbstractDocument;
    import java.awt.*;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.awt.event.KeyEvent;
    import java.awt.event.KeyListener;
    import java.util.Random;
    
    public class ContentPanes extends JPanel implements KeyListener, ActionListener {
        //创建一个面板画蛇
    
        public int length1;
        public int[] snakeX = new int[600];
        public int[] snakeY = new int[500];
        String fx ;// R :右  L: 左 U: 上  D: 下
        //游戏开始判断
        boolean isStart = false;
        boolean isStop = false;
    
        //定义食物出现的位置
        int foodX;
        int foodY;
        //产生随机坐标
        Random random = new Random();
    
        //是指画面的帧数
        Timer timer = new Timer(100,this);
    
        //构造器
        public ContentPanes(){
            init();
            //获取键盘监听事件
            this.setFocusable(true);//点击事件聚焦到键盘
            this.addKeyListener(this);//将this添加到键盘监听事件
            timer.start();
        }
    
    
    
        //初始化，各个变量
        public void init(){
            //定义头部坐标,值为坐标，下标表示第几个身体
            snakeX[0] = 100;
            snakeY[0] = 100;
            //定义身体坐标
            snakeX[1] = 75;
            snakeY[1] = 100;
            snakeX[2] = 50;
            snakeY[2] = 100;
            // 设置默认方向
            fx = "R";
            //设置蛇的默认长度
            length1 = 3;
            //-食物的位置
            foodX = 25 + 25*random.nextInt(34);
            foodY = 75 + 25*random.nextInt(21);
    
        }
    
    
        @Override
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            this.setBackground(Color.CYAN);
            //left 左 top
            Data.header.paintIcon(this,g,25,15);
            g.fillRect(25,75,850,600);
    
            //画一个静态的小蛇
    
            //判断蛇头的方向
            if(fx.equals("R")){
                Data.right.paintIcon(this,g,snakeX[0],snakeY[0]);
            }else if(fx.equals("L")){
                Data.left.paintIcon(this,g,snakeX[0],snakeY[0]);
            }else if(fx.equals("U")){
                Data.up.paintIcon(this,g,snakeX[0],snakeY[0]);
            }else if(fx.equals("D")){
                Data.down.paintIcon(this,g,snakeX[0],snakeY[0]);
            }
    
            //用for循环增加蛇的长度
            for(int i = 1;i<length1;i++){
                Data.body.paintIcon(this,g,snakeX[i],snakeY[i]);
            }
    
            //游戏提示：开始游戏
            if(isStart == false){
                g.setColor(Color.white);
                g.setFont(new Font("宋体",Font.BOLD,30));
                g.drawString("按下空格键开始",300,300);
            }
            Data.food.paintIcon(this,g,foodX,foodY);
            //判断游戏是否停止
            if(isStop){
                g.setColor(Color.RED);
                g.setFont(new Font("宋体",Font.BOLD,30));
                g.drawString("游戏结束",200,300);
            }
    
        }
    
    
        @Override
        public void keyPressed(KeyEvent e) {
            //键盘按下的监听事件
            int keyCode = e.getKeyCode();
            if(keyCode == KeyEvent.VK_SPACE){
                if (isStop) {
                    isStop = false;
                    init();
                }else {
                    isStart = !isStart;
                }
                repaint();//刷新页面
            }
            //判断鼠标方向，
            if(keyCode == KeyEvent.VK_LEFT){
                fx = "L";
            }else if(keyCode == KeyEvent.VK_RIGHT){
                fx = "R";
            }else if(keyCode == KeyEvent.VK_UP){
                fx = "U";
            }else if(keyCode == KeyEvent.VK_DOWN){
                fx = "D";
            }
    
    
        }
    
    
    
    
    
    
    
        @Override
        public void keyReleased(KeyEvent e) {
    
        }
    
    
        @Override
        public void keyTyped(KeyEvent e) {
    
        }
    
        @Override
        public void actionPerformed(ActionEvent e) {
            //执行定时操作,开始游戏
            if(isStart && isStop == false){
                //将身体占领之前头部的位置
                for (int i = length1 - 1; i > 0; i--) {
                    snakeX[i] = snakeX[i - 1];
                    snakeY[i] = snakeY[i - 1];
                }
    
                //snakeX[0] = snakeX[0] + 25;
    
                //添加方向移动
                if(fx.equals("R")) {
                    snakeX[0] = snakeX[0] + 25;
                    if (snakeX[0] > 850) {
                        snakeX[0] = 25;
                    }
                }else if(fx.equals("L")) {
                    snakeX[0] = snakeX[0] - 25;
                    if (snakeX[0] < 0) {
                        snakeX[0] = 850;
                    }
                }else if(fx.equals("D")) {
                    snakeY[0] = snakeY[0] + 25;
                    if (snakeY[0] > 600) {
                        snakeY[0] = 75;
                    }
                }else if(fx.equals("U")) {
                    snakeY[0] = snakeY[0] - 25;
                    if (snakeY[0] < 75) {
                        snakeY[0] = 600;
                    }
                }
    
                if(snakeX[0] == foodX && snakeY[0] ==foodY){
                    //蛇的身体长度增加
                    length1++;
                    //重置食物的位置
                    foodX = 25 + 25*random.nextInt(34);
                    foodY = 75 + 25*random.nextInt(21);
                }
                for(int i = 1;i<length1;i++) {
                    if (snakeX[0] == snakeX[i] && snakeY[0] == snakeY[i]) {
                        isStop = true;
                    }
                }
                //刷新页面
                repaint();
            }
            //启动时间
            timer.start();
        }
    }

## 3 数据资源区 ##

package com.pan.snake;
    
    import javax.swing.*;
    import java.net.URL;
    
    public class Data {
    
        //头部的图片  URL定位图片的地址
        public static URL  headerURL = Data.class.getResource("/static/headers.png");
        public static ImageIcon header = new ImageIcon(headerURL);
    
        //头部
        public static URL upURL = Data.class.getResource("/static/up.png");
        public static URL downURL = Data.class.getResource("/static/down.png");
        public static URL leftURL = Data.class.getResource("/static/left.png");
        public static URL rightURl = Data.class.getResource("/static/right.png");
    
        public static ImageIcon up = new ImageIcon(upURL);
        public static ImageIcon down = new ImageIcon(downURL);
        public static  ImageIcon left = new ImageIcon(leftURL);
        public static ImageIcon right = new ImageIcon(rightURl);
    
        //food
        public static URL foodURL = Data.class.getResource("/static/food.png");
        public static ImageIcon food = new ImageIcon(foodURL);
    
        //身体
        public static URL bodyURL = Data.class.getResource("/static/body.png");
        public static ImageIcon body = new ImageIcon(bodyURL);
    }

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