贪吃蛇GUI游戏设计

贪吃蛇

这里是Java写的自制贪吃蛇小游戏,运用GUI编程,请大家参考。
师承kuang神,并非全原创。
GamePanel类:

package snake;

import javax.swing.*;
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;

//游戏的面板
public class GamePanel extends JPanel implements KeyListener , ActionListener {

    //定义蛇的数据结构
    int length;//蛇的长度
    int[] snakeX = new int[500];//蛇的x坐标 25*25
    int[] snakeY = new int[500];//蛇的y坐标 25*25
    String direction;//初始方向向右

    //食物的坐标
    int foodx;
    int foody;
    Random random = new Random();

    int score;//成绩

    //游戏当前的状态: 开始   停止
    boolean isStart = false;//默认不开始

    boolean isFail = false;//游戏失败状态

    //定时器 以毫秒为单位 1000ms = 1s
    Timer timer = new Timer(100,this);//100毫秒执行一次!
    
    //构造器
    public GamePanel() {
        init();
        //获得焦点和键盘事件
        this.setFocusable(true);//获得焦点事件
        this.addKeyListener(this);//获得键盘监听事件
        timer.start();//游戏一开始,定时器就启动
    }

    //初始化方法
    public void init(){
        length = 3;
        snakeX[0] = 100;snakeY[0] = 100;//脑袋的坐标
        snakeX[1] = 75;snakeY[1] = 100;//第一个身体的坐标
        snakeX[2] = 50;snakeY[2] = 100;//第二个身体的坐标
        direction = "R";

        //把食物随机分布在界面上
        foodx = 25 + 25*random.nextInt(34);
        foody = 75 + 25*random.nextInt(24);
        score = 0;
    }

    //绘制面板,游戏中所有东西都使用这个画笔来画
    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);//清屏
        //绘制静态的面板
        this.setBackground(Color.WHITE);
        Data.header.paintIcon(this,g,25,11);
        g.fillRect(25,75,850,600);//默认的游戏界面

        //画积分
        g.setColor(Color.white);
        g.setFont(new Font("微软雅黑",Font.BOLD,16));//设置字体
        g.drawString("长度"+length,800,35);
        g.drawString("分数"+score,800,50);

        //画食物
        Data.food.paintIcon(this,g,foodx,foody);
        //把小蛇画上去
        if(direction.equals("R")){
            Data.right.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if(direction.equals("L")){
            Data.left.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if(direction.equals("U")){
            Data.up.paintIcon(this,g,snakeX[0],snakeY[0]);
        }else if(direction.equals("D")){
            Data.down.paintIcon(this,g,snakeX[0],snakeY[0]);
        }

        for (int i = 1; i < length; i++) {
            Data.body.paintIcon(this,g,snakeX[i],snakeY[i]);//蛇的长度根据length来控制
        }



        //游戏状态
        if(isStart==false){
            g.setColor(Color.BLUE);
            g.setFont(new Font("arial",Font.BOLD,40));//设置字体
            g.drawString("Press Space!Your show time!",200,300);
        }

        if(isFail){
            g.setColor(Color.RED);
            g.setFont(new Font("arial",Font.BOLD,60));//设置字体
            g.drawString("Game Over!",300,300);
            g.setColor(Color.WHITE);
            g.setFont(new Font("arial",Font.BOLD,60));//
            g.drawString("Press Space to Restart!",175,400);
        }
    }


    //键盘监听事件
    @Override
    public void keyPressed(KeyEvent e) {
        int keyCode = e.getKeyCode();

        if(keyCode == KeyEvent.VK_SPACE){
            if(isFail){
                //重新开始
                isFail = false;
                init();
            }else{
                isStart = !isStart;//取反
            }
            repaint();
        }
        //小蛇移动
        if(keyCode==KeyEvent.VK_UP){
            if(direction.equals("D") == false){
                direction = "U";//实现功能,小蛇移动时不可以强行反方向移动
            }
        }else if(keyCode==KeyEvent.VK_DOWN){
            if(direction.equals("U") == false){
                direction = "D";
            }
        }else if(keyCode==KeyEvent.VK_LEFT){
            if(direction.equals("R") == false){
                direction = "L";
            }
        }else if(keyCode==KeyEvent.VK_RIGHT){
            if(direction.equals("L") == false){
                direction = "R";
            }
        }
    }

    //事件监听--需要通过固定事件来刷新,1s=10次
    @Override
    public void actionPerformed(ActionEvent e) {
        if(isStart&& isFail == false) {//如果游戏是开始状态,就让小蛇动起来!


            //吃食物
            if(snakeX[0] == foodx&&snakeY[0]==foody){
                //长度加一
                length++;
                //分数加十
                score = score + 10;
                //再次随机食物
                foodx = 25 + 25*random.nextInt(34);
                foody = 75 + 25*random.nextInt(24);
            }
            //移动
            for (int i = length - 1; i > 0; i--) {//后一节移动到前一节的位置
                snakeX[i] = snakeX[i - 1];
                snakeY[i] = snakeY[i - 1];
            }

            //走向
            if (direction.equals("R")) {
                snakeX[0] = snakeX[0] + 25;
                if (snakeX[0] > 850) {
//                    snakeX[0] = 25; //蛇头超出边界则从另一边出来
                isFail = true;}//贪吃蛇撞墙,游戏失败
            } else if (direction.equals("L")) {
                snakeX[0] = snakeX[0] - 25;
                if (snakeX[0] < 25) {
//                    snakeX[0] = 850;
                    isFail = true;}
                } else if (direction.equals("U")) {
                    snakeY[0] = snakeY[0] - 25;
                    if (snakeY[0] < 75) {
//                        snakeY[0] = 650;
                    isFail = true;}
                    } else if (direction.equals("D")) {
                        snakeY[0] = snakeY[0] + 25;
                        if (snakeY[0] > 650) {
//                            snakeY[0] = 75;
                    isFail = true;}
                        }


            //失败判定,撞到自己就算失败
            for (int i = 1; i < length; i++) {
                if(snakeX[0]==snakeX[i]&&snakeY[0]==snakeY[i]){
                    isFail = true;
                }
            }
            repaint(); }
                    timer.start();//定时器开启
                }

                @Override
                public void keyReleased (KeyEvent e){

                }
                @Override
                public void keyTyped (KeyEvent e){

                }

            }

Data类

package snake;

import javax.swing.*;
import java.net.URL;

//数据中心
public class Data {

    //相对路径  xx.jpg
    //绝对路径  / 相当于当前项目
    public static URL headerURL = Data.class.getResource("/statics/header2.png");
    public static URL upURL = Data.class.getResource("/statics/up.png");
    public static URL downURL = Data.class.getResource("/statics/down.png");
    public static URL leftURL = Data.class.getResource("/statics/left.png");
    public static URL rightURL = Data.class.getResource("/statics/right.png");
    public static URL bodyURL = Data.class.getResource("/statics/body.png");
    public static URL foodURL = Data.class.getResource("/statics/food.png");
    public static ImageIcon header = new ImageIcon(headerURL);
    public static ImageIcon up = new ImageIcon(upURL);
    public static ImageIcon down = new ImageIcon(downURL);
    public static ImageIcon right = new ImageIcon(rightURL);
    public static ImageIcon left = new ImageIcon(leftURL);
    public static ImageIcon body = new ImageIcon(bodyURL);
    public static ImageIcon food = new ImageIcon(foodURL);
}

GameStart类:

package snake;


import javax.swing.*;

//游戏的主启动类
public class StartGame {
    public static void main(String[] args) {
        JFrame frame = new JFrame();

        frame.setBounds(10,10,900,720);
        frame.setResizable(false);
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.setVisible(true);
        //正常游戏界面都应该在面板上

        frame.add(new GamePanel());

    }
}

这里是基本图片,Logo图片可以自行设计。
贪吃蛇GUI游戏设计

贪吃蛇GUI游戏设计
贪吃蛇GUI游戏设计
贪吃蛇GUI游戏设计
贪吃蛇GUI游戏设计
贪吃蛇GUI游戏设计
贪吃蛇GUI游戏设计

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