java开发简单贪吃蛇游戏
今天用了一个多小时的时间，开发了一个简单的贪吃蛇游戏
源码下载：https://pan.baidu.com/s/1GrvTAHbo8s4pQu74jz2yyw
提取码：3m8y
成品展示图
其实用到的知识点并不多，下面展示一些自己设计
1、页面布局
2、自己画的几个图片
3、开始创建一个新的项目，并且按下面来写
创建StartGame包，并创建Start.java
目的的创建JFrame窗体
package StartGame; import java.awt.Color; import javax.swing.JFrame; import GamePanel.GamePanel; public class Start { public static void main(String[] args) { /* * 1、创建窗体，创建主体面板， * 2、画静态的蛇 * 3、让蛇动起来 (使用线程) * 4、进行键盘控制蛇的走动 (使用键盘监听) * 5、计算分数。 */ JFrame jframe = new JFrame(); jframe.setTitle("简单贪吃蛇游戏"); jframe.setBounds(300, 50, 650, 470); jframe.setResizable(false); jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jframe.add(new GamePanel()); jframe.setVisible(true); } }
创建Resources包，创建ReadyImages.java
目的是用来存放一些静态的图片信息
package Resources; import java.net.URL; import javax.swing.ImageIcon; public class ReadyImages { //准备好图片 public static URL headleft = ReadyImages.class.getResource("/Resources/snakeheadleft.gif"); public static URL headright = ReadyImages.class.getResource("/Resources/snakeheadright.gif"); public static URL headup = ReadyImages.class.getResource("/Resources/snakeheadup.gif"); public static URL headdown = ReadyImages.class.getResource("/Resources/snakeheaddown.gif"); public static URL body = ReadyImages.class.getResource("/Resources/snakebody.gif"); public static URL food = ReadyImages.class.getResource("/Resources/snakefood.gif"); public static ImageIcon headleftIcon = new ImageIcon(headleft); public static ImageIcon headrightIcon = new ImageIcon(headright); public static ImageIcon headupIcon = new ImageIcon(headup); public static ImageIcon headdownIcon = new ImageIcon(headdown); public static ImageIcon bodyIcon = new ImageIcon(body); public static ImageIcon foodIcon = new ImageIcon(food); }
创建Snake包，并创建Snake.java
这个是蛇的实体类
package Snake; import javax.swing.ImageIcon; import Resources.ReadyImages; public class Snake implements Runnable { // 创建一个蛇类 public int snakeLength; // 蛇的长度 public int[] snakeX = new int[600]; // 蛇的x坐标 public int[] snakeY = new int[500]; // 蛇的y坐标 public String action = "R"; //蛇的动作，默认是向右 public ImageIcon headimages = ReadyImages.headrightIcon;//头部的图片 public Snake() { // 初始化蛇的位置 // 每一个格子都有（25高25宽） snakeLength = 3; snakeX[0] = 100;snakeY[0] = 100; snakeX[1] = 75;snakeY[1] = 100; snakeX[2] = 50;snakeY[2] = 100; } // 重写run方法， @Override public void run() { for (int i = snakeLength - 1; i > 0; i--) { // 除了头部其他的都向右移 snakeX[i] = snakeX[i - 1]; snakeY[i] = snakeY[i - 1]; } try { Thread.sleep(100); } catch (InterruptedException e) { e.printStackTrace(); } } /** 吃的动作 */ public boolean eatfood(int foodx, int foody) { // 吃到食物 if (foodx == snakeX[0] && foody == snakeY[0]) { snakeLength++; // 身体加1 return true; } return false; } /**吃到自己*/ public boolean eatmyself() { for (int i = 1; i < snakeLength; i++) { if (snakeX[0] == snakeX[i] && snakeY[0] == snakeY[i]) { return true; } } return false; } /**蛇的边界问题*/ public void border() { if (action == "L") { // 判断蛇的动作 snakeX[0] = snakeX[0] - 25; if (snakeX[0] < 25) { snakeX[0] = 600; } headimages = ReadyImages.headleftIcon; } else if (action == "R") { snakeX[0] = snakeX[0] + 25; if (snakeX[0] > 600) { snakeX[0] = 25; } headimages = ReadyImages.headrightIcon; } else if (action == "U") { snakeY[0] = snakeY[0] - 25; if (snakeY[0] < 75) { snakeY[0] = 400; } headimages = ReadyImages.headupIcon; } else if (action == "D") { snakeY[0] = snakeY[0] + 25; if (snakeY[0] > 400) { snakeY[0] = 75; } headimages = ReadyImages.headdownIcon; } } }
创建GamePanel包，并创建GamePanel.java
这个是游戏的主面板，
package GamePanel; import java.awt.Color; import java.awt.Font; import java.awt.Graphics; import java.util.Random; import javax.swing.JPanel; import Controller.GameKeyListener; import Resources.ReadyImages; import Snake.Snake; public class GamePanel extends JPanel{ Snake snake; //蛇的类别 GameKeyListener keyListener; //键盘操作 int grade = 0; //积分 boolean start = false; //是否开始游戏。默认不是 boolean dead = false; //蛇是否死亡 int foodX; //设置蛇出现的位置 int foodY; Random random = new Random(); public GamePanel(){ //初始化游戏界面 initGame(); //初始化 } /**初始化游戏*/ public void initGame() { //把线程开起来 snake = new Snake(); keyListener = new GameKeyListener(snake.action,start); foodX = 25 + 25 * random.nextInt(24); //随机生成食物 foodY = 75 + 25 * random.nextInt(14); this.setFocusable(true); // 焦点可以在游戏上 this.addKeyListener(keyListener); //添加键盘事件 } //游戏画板 @Override protected void paintComponent(Graphics g) { super.paintComponent(g); //画一个游戏的面板 g.setColor(Color.WHITE); g.fillRect(25, 75, 600, 350); //积分显示块 g.setColor(Color.BLACK); g.setFont(new Font("微软雅黑", Font.BOLD, 18)); g.drawString("积分" + grade, 500, 50); //画静态蛇 snake.headimages.paintIcon(this, g, snake.snakeX[0], snake.snakeY[0]); for(int i = 1; i < snake.snakeLength; i++) { //i需要从1开始，因为头部已经设置了 ReadyImages.bodyIcon.paintIcon(this, g, snake.snakeX[i], snake.snakeY[i]); } //画食物 ReadyImages.foodIcon.paintIcon(this, g, foodX, foodY); //游戏的判断 snake.action = keyListener.snakeAction(); start = keyListener.isStart(); dead = snake.eatmyself(); //吃到自己 //开始游戏 if(start == true && dead == false) { snake.run(); //让蛇的线程跑起来 snake.border(); //蛇的边界问题 boolean eatting = snake.eatfood(foodX, foodY);//吃到食物 if(eatting) { //吃到食物 foodX = 25 + 25 * random.nextInt(24); //随机生成食物 foodY = 75 + 25 * random.nextInt(14); grade++; } } //暂停游戏 if (start == false && dead == false) { g.setColor(Color.BLACK); g.setFont(new Font("微软雅黑", Font.BOLD, 30)); g.drawString("按下空格键开始游戏", 180, 250); } // 是否吃到自己游戏结束 if (dead) { g.setColor(Color.BLACK); g.setFont(new Font("微软雅黑", Font.BOLD, 30)); g.drawString("游戏结束,按下空格键开始", 180, 250); grade = 0; } //死亡后 if(start == false && dead == true) { start = true; dead = false; initGame(); //重新游戏 } //页面刷新（帧） repaint(); } }
创建Controller包，并创建GameKeyListener.java
这个是用来对键盘的一些监听操作
package Controller; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; public class GameKeyListener implements KeyListener{ public String action; public boolean isstart; public GameKeyListener(String action, boolean isstart) { super(); this.action = action; this.isstart = isstart; } /**拿到蛇的操作*/ public String snakeAction() { return action; } /**是否开始游戏*/ public boolean isStart() { return isstart; } @Override public void keyPressed(KeyEvent e) { int keyCode = e.getKeyCode(); if (keyCode == KeyEvent.VK_SPACE) { // 按下空格键 isstart = !isstart; //控制暂停 } else if (keyCode == KeyEvent.VK_LEFT) { action = "L"; } else if (keyCode == KeyEvent.VK_RIGHT) { action = "R"; } else if (keyCode == KeyEvent.VK_UP) { action = "U"; } else if (keyCode == KeyEvent.VK_DOWN) { action = "D"; } } @Override public void keyTyped(KeyEvent e) { // TODO Auto-generated method stub } @Override public void keyReleased(KeyEvent e) { // TODO Auto-generated method stub } }
完成上面的编写，就可以运行了。
不过运行的时候，好像页面刷新这一块好像有些问题。希望大伙能帮老弟纠正一些！！！
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