GUI編程實(shí)現(xiàn)貪吃蛇小游戲

（推薦教程：java課程）

1、編寫(xiě)主方法實(shí)現(xiàn)啟動(dòng)類

2、準(zhǔn)備好素材圖片，編寫(xiě)數(shù)據(jù)類

3、代碼主體部分：在panel面板上實(shí)現(xiàn)游戲初始化，鍵盤(pán)和事件的監(jiān)聽(tīng)等功能

4、代碼運(yùn)行效果圖

5、GitHub源碼鏈接

1、編寫(xiě)主方法實(shí)現(xiàn)啟動(dòng)類

		import javax.swing.*;         //主啟動(dòng)類  		public class StartGame {  	    public static void main(String[] args) {         JFrame jFrame = new JFrame("貪吃蛇小游戲");         jFrame.setBounds(10,10,900,720);         jFrame.setResizable(false);  //設(shè)置窗口大小不可變         jFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);         //面板         jFrame.add(new GamePanel());         jFrame.setVisible(true);     } }

2、準(zhǔn)備好素材圖片，編寫(xiě)數(shù)據(jù)類

import javax.swing.*; import java.net.URL;   public class Data {     //頭部圖片     public static URL headerURL = Data.class.getResource("statics/header.png");     public static ImageIcon header = new ImageIcon(headerURL);     //頭部上下左右     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 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);     //身體     public static URL bodyURL = Data.class.getResource("statics/body.png");     public static ImageIcon body = new ImageIcon(bodyURL);     //食物     public static URL foodURL = Data.class.getResource("statics/food.png");     public static ImageIcon food = new ImageIcon(foodURL);  }

3、代碼主體部分：在panel面板上實(shí)現(xiàn)游戲初始化，鍵盤(pán)和事件的監(jiān)聽(tīng)等功能

package com.abc.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;  //游戲的面板 public class GamePanel extends JPanel implements KeyListener, ActionListener {     //定義蛇的數(shù)據(jù)結(jié)構(gòu)     int length; //蛇的長(zhǎng)度     int[] snakeX = new int[600];  //蛇的x坐標(biāo)  25*25     int[] snakeY = new int[500];  //蛇的y坐標(biāo)  25*25     String fx;     //食物     int foodx;     int foody;     Random random = new Random();     int score;  //游戲分?jǐn)?shù)     //游戲當(dāng)前的狀態(tài)     boolean isStart = false;     boolean isFail = false;       //定時(shí)器     Timer timer = new Timer(100,this);//100毫秒刷新一次     //構(gòu)造方法     public GamePanel() {         init();//初始化         this.setFocusable(true);  //獲得焦點(diǎn)事件         this.addKeyListener(this);  //獲得鍵盤(pán)監(jiān)聽(tīng)事件         timer.start();  //游戲一開(kāi)始 定時(shí)器就啟動(dòng)     }      //初始化方法     public void init(){         length = 3;         //初始化開(kāi)始的蛇，給蛇定位         snakeX[0] = 100;snakeY[0] = 100;         snakeX[1] = 75;snakeY[1] = 100;         snakeX[2] = 50;snakeY[2] = 100;         fx = "R";         //初始方向向右         //初始化食物數(shù)據(jù)         foodx = 25 + 25*random.nextInt(34);         foody = 75 + 25*random.nextInt(24);         //初始化游戲分?jǐn)?shù)         score = 0;     }       //繪制面板     @Override     protected void paintComponent(Graphics g) {         super.paintComponent(g);//清屏         this.setBackground(Color.white);//設(shè)置面板背景色         Data.header.paintIcon(this,g,25,11);//頭部         g.fillRect(25,75,850,600);//默認(rèn)的黑色游戲區(qū)域          //繪制小蛇         if (fx.equals("R")){             Data.right.paintIcon(this,g,snakeX[0],snakeY[0]);  //蛇頭初始化向右         }else if (fx.equals("L")){             Data.left.paintIcon(this,g,snakeX[0],snakeY[0]);  //蛇頭初始化向左         }else if (fx.equals("U")){             Data.up.paintIcon(this,g,snakeX[0],snakeY[0]);  //蛇頭初始化向上         }else if (fx.equals("D")){             Data.down.paintIcon(this,g,snakeX[0],snakeY[0]);  //蛇頭初始化向下         }         for (int i = 1; i < length; i++) {             Data.body.paintIcon(this,g,snakeX[i],snakeY[i]);         }          //食物         Data.food.paintIcon(this,g,foodx,foody);         //積分         g.setColor(Color.white);         g.setFont(new Font("微軟雅黑",Font.BOLD,18));         g.drawString("長(zhǎng)度 "+length,750,35);         g.drawString("分?jǐn)?shù) "+score,750,50);         //游戲狀態(tài)         if (isStart == false){             g.setColor(Color.white);             g.setFont(new Font("微軟雅黑",Font.BOLD,40));//設(shè)置字體             g.drawString("按下空格開(kāi)始游戲",300,300);         }         //失敗判斷         if (isFail){             g.setColor(Color.red);             g.setFont(new Font("微軟雅黑",Font.BOLD,40));//設(shè)置字體             g.drawString("游戲失敗，按下空格重新開(kāi)始",300,300);         }     }          //鍵盤(pán)監(jiān)聽(tīng)事件     @Override     public void keyPressed(KeyEvent e) {         int keyCode = e.getKeyCode();  //獲取按鍵         if (keyCode == KeyEvent.VK_SPACE){             if (isFail){                 //重新開(kāi)始                 isFail=false;                 init();             }else {                 isStart =! isStart;              }             repaint();         }          //鍵盤(pán)控制小蛇移動(dòng)         if (keyCode==KeyEvent.VK_UP){             fx="U";         }else if (keyCode==KeyEvent.VK_DOWN){             fx="D";         }else if (keyCode==KeyEvent.VK_LEFT){             fx="L";         }else if (keyCode==KeyEvent.VK_RIGHT){             fx="R";         }     }     //事件監(jiān)聽(tīng)     @Override     public void actionPerformed(ActionEvent e) {         if (isStart && isFail ==false){//如果游戲是開(kāi)始狀態(tài)，就讓小蛇動(dòng)起來(lái)             //移動(dòng)             for (int i = length-1; i > 0 ; i--) {                 snakeX[i] = snakeX[i-1];                 snakeY[i] = snakeY[i-1];             }             //走向             if (fx.equals("R")){                 snakeX[0] = snakeX[0]+25;                 //邊界判斷                 if (snakeX[0]>850){                     snakeX[0]=25;                 }             }else if (fx.equals("L")){                 snakeX[0] = snakeX[0]-25;                 if (snakeX[0]<25){                     snakeX[0]=850;                 }             }else if (fx.equals("U")){                 snakeY[0] = snakeY[0]-25;                 if (snakeY[0]<75){                     snakeY[0]=650;                 }             }else if (fx.equals("D")){                 snakeY[0] = snakeY[0]+25;                 if (snakeY[0]>650){                     snakeY[0]=75;                 }             }             //吃食物             if (snakeX[0] == foodx && snakeY[0] == foody){                 length++;                 score  = score + 10;                 //再次隨機(jī)食物                 foodx = 25 + 25*random.nextInt(34);                 foody = 75 + 25*random.nextInt(24);             }             //失敗判定,撞到自己             for (int i = 1; i < length; i++) {                 if (snakeX[0]==snakeX[i] && snakeY[0]==snakeY[i]){                     isFail=true;                 }             }             repaint();         }         timer.start();     }     @Override     public void keyTyped(KeyEvent e) {     }     @Override     public void keyReleased(KeyEvent e) {     } }

4、代碼運(yùn)行效果圖

初始化界面:

游戲中界面：

游戲結(jié)束界面：