Java实现简易GUI贪吃蛇小游戏

Java实现简易GUI贪吃蛇小游戏

本文实例为大家分享了java实现贪吃蛇小游戏的具体代码，供大家参考，具体内容如下

主启动类

import javax.swing.*;

/**

* @author The Setting sun

* @create 2021-09-11 15:19

*/

//主启动类

public class StartGame {

public static void main(String[] args) {

JFrame frame = new JFrame();

frame.setResizable(false);//窗口大小不可变

frame.setSize(900, 720);//窗口大小

frame.setLocationRelativeTo(null);//窗口居中

frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);//窗口关闭事件

frame.add(new GamePanel());

frame.setVisible(true);//窗口可见

}

}

资源类（图标）

import javax.swing.*;

import java.net.URL;

/**

@author The Setting sun

@create 2021-09-11 15:40

*/

public class Data {

public static URL headerURL = Data.class.getResource("img/header.png");

public static ImageIcon header = new Imahttp://geIcon(headerURL);

public static URL upURL = Data.class.getResource("img/tx.png");

public static ImageIcon up = new ImageIcon(upURL);

public static URL downURL = Data.class.getResource("img/down.png");

public static ImageIcon down = new ImageIcon(downURL);

public static URL rightURL = Data.class.getResource("img/right.png");

public static ImageIcon right = new ImageIcon(rightURL);

public static URL leftURL = Data.class.getResource("img/left.png");

public static ImageIcon left = new ImageIcon(leftURL);

public static URL bodyURL = Data.class.getResource("img/body.png");

public static ImageIcon body = new ImageIcon(bodyURL);

public static URL foodURL = Data.class.getResource("img/food.png");

public static ImageIcon food = new ImageIcon(foodURL);

}

程序类

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.util.Random;

/**

* @author The Setting sun

* @create 2021-09-11 15:24

*/

//游戏面板

public class GamePanel extends JPanel implements KeyListener, ActionListener {

//蛇

int length;//蛇的长度

int[] snakeX = new int[600];//蛇的x坐标 25*25

int[] snakeY = new int[500];//蛇的y坐标 25*25

String orient;//初始方向

//食物

int foodX;

int foodY;

Random random = new Random();

boolean isStart = false;//游戏当前状态：默认为停止

boolean isFail = false;//游戏是否失败了，默认为没有

int score;//积分

//定时器 ms为单位

Timer timer = new Timer(140, this);//100毫秒刷新一次

//构造器

public GamePanel() {

init();//初始化

setFocusable(true);//获得焦点

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

public void init() {

length = 3;//初始长度为3

snakeX[0] = 100;

snakeY[0] = 100;//头的坐标

snakeX[1] = 75;

snakeY[1] = 100;//第1个身体的坐标

snakeX[2] = 50;

snakeY[2] = 100;//第2个身体的坐标

orient = "R";//初始方向向右

//让食物随机分布在界面上

foodX = 25 + 25 * random.nextInt(34);

foodY = 75 + 25 * random.nextInt(24);

score = 0;//积分

}

//绘制面板，游戏中的东西都用这个来画

@Override

protected void paintComponent(Graphics g) {

super.paintComponent(g);//清屏

setBackground(Color.pink);

//绘制静态面板

Data.header.paintIcon(this, g, 25, 11);

g.fillRect(25, 75, 850, 600);

//绘制积分面板

g.setColor(Color.GREEN);

g.setFont(new Font("微软雅黑", Font.BOLD, 16));

g.drawString("长度：" + length, 750, 35);

g.drawString("积分：" + score, 750, 50);

//绘制食物

Data.food.paintIcon(this, g, foodX, foodY);

//绘制蛇

switch (orient) {

case "R":

Data.right.paintIcon(this, g, snakeX[0], snakeY[0]);//蛇初始化向右，通过判断转变方向

break;

case "L":

Data.left.paintIcon(this, g, snakeX[0], snakeY[0]);//蛇初始化向右，通过判断转变方向

break;

case "U":

Data.up.paintIcon(this, g, snakeX[0], snakeY[0]);//蛇初始化向右，通过判断转变方向

break;

case "D":

Data.down.paintIcon(this, g, snakeX[0], snakeY[0]);//蛇初始化向右，通过判断转变方向

break;

}

//动态添加身体

NzgMkRtWK for (int i = 1; i < length; i++) {

Data.body.paintIcon(this, g, snakeX[i], snakeY[i]);

}

// Data.body.paintIcon(this,g,snakeX[1],snakeY[1]);//第1个身体的坐标

// Data.body.paintIcon(this,g,snakeX[2],snakeY[2]);//第2个身体的坐标

//游戏状态

if (isStart == false) {

g.setColor(Color.WHITE);

g.setFont(new Font("微软雅黑", Font.BOLD, 40));

g.drawString("按下空格开始游戏", 300, 300);

}

if (isFail) {

g.setColor(Color.RED);

g.setFont(new Font("微软雅黑", Font.BOLD, 40));

g.drawString("犹豫就会败北！", 300, 300);

}

}

//键盘监听器

@Override

public void keyPressed(KeyEvent e) {//按下

int keyCode = e.getKeyCode();//获得键盘按键码

if (keyCode == KeyEvent.VK_SPACE) {//按下空格

if (isFail) {

//重新开始

isFail = false;

init();

} else {

isStart = !isStart;//取反

repaint();

}

}

//修复了一个蛇可以反向移动的bug

if (orient.equals("U") && keyCode == KeyEvent.VK_DOWN){

keyCode = KeyEvent.VK_UP;

}

if (orient.equals("D") && keyCode == KeyEvent.VK_UP){

keyCode = KeyEvent.VK_DOWN;

}

if (orient.equals("L") && keyCode == KeyEvent.VK_RIGHT){

keyCode = KeyEvent.VK_LEFT;

}

if (orient.equals("R") && keyCode == KeyEvent.VK_LEFT){

keyCode = KeyEvent.VK_RIGHT;

}

//控制蛇改变方向移动

switch (keyCode) {

case KeyEvent.VK_UP:

orient = "U";

break;

case KeyEvent.VK_DOWN:

orient = "D";

break;

case KeyEvent.VK_LEFT:

orient = "L";

break;

case KeyEvent.VK_RIGHT:

orient = "R";

break;

}

}

//事件监听：需要通过固定事件来刷新，1秒10次（帧率）

@Override

public void actionPerformed(ActionEvent e) {

if (isStart && isFail == false) {//如果游戏是开始状态，就让蛇动起来

//吃食物

if (snakeX[0] == foodX && snakeY[0] == foodY) {

//长度+1

length++;

score += 10;

//再次让食物随机出现

foodX = 25 + 25 * random.nextInt(34);

foodY = 75 + 25 * random.nextInt(24);

}

//身体移动

for (int i = length - 1; i > 0; i--) {

snakeX[i] = snakeX[i - 1];

snakeY[i] = snakeY[i - 1];

}

//走向

switch (orient) {

case "R":

snakeX[0] = snakeX[0] + 25;

//边界判断

if (snakeX[0] > 850) {

snakeX[0] = 25;

}

break;

case "L":

snakeX[0] = snakeX[0] - 25;

//边界判断

if (snakeX[0] < 25) {

snakeX[0] = 850;

}

break;

case "U":

snakeY[0] = snakeY[0] - 25;

//边界判断

if (snakeY[0] < 75) {

snakeY[0] = 650;

}

break;

case "D":

snakeY[0] = snakeY[0] + 25;

//边界判断

if (snakeY[0] > 650) {

snakeY[0] = 75;

}

break;

NzgMkRtWK }

//失败判断，撞到自己就GG

for (int i = 1 ; i < length; i++) {

if (snakeX[0] == snakeX[i] && snakeY[0] == snakeY[i]){

isFail = true;

}

}

repaint();//刷新页面

}

timer.start();//定时器开启

}

@Override

public void keyTyped(KeyEvent e) {

}

@Override

public void keyReleased(KeyEvent e) {

}

}

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。