java贪吃蛇游戏.zip

package com.learn; 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; /** * @program: snake * @description: 游戏面板 * @author: HuQi * @date: 2021/3/31 20:05 * @Version: 1.0 */ public class GamePanel extends JPanel implements KeyListener, ActionListener { /** *定义蛇的数据结构 *蛇的长度,蛇的X坐标,蛇的Y坐标,初始化方向,游戏当前的状态默认是停止 */ int length; int[] snakeX = new int[600]; int[] snakeY = new int[500]; String fx; boolean isStart = false; boolean isFail = false; String fxR = "R"; String fxL = "L"; String fxU = "U"; String fxD = "D"; int snakeMinX =25; int snakeMaxX=850; int snakeMinY =75; int snakeMaxY =650; int score; /** *食物的坐标 */ int foodX; int foodY; Random random = new Random(); /** * 定时器,100毫秒执行一次 */ Timer timer = new Timer(100,this); public GamePanel() { init(); } /** * @description: 初始化方法 * @params: [] * @return: void * @exception: * @author: HuQi * @date: 2021/4/1 14:43 */ public void init() { //蛇初始长度 length = 3; //蛇脑袋的坐标 snakeX[0] = 100; snakeY[0] = 100; //蛇第一个身体的坐标 snakeX[1] = 75; snakeY[1] = 100; //蛇第二个身体的坐标 snakeX[2] = 50; snakeY[2] = 100; //初始方向 fx = "R"; //游戏一开始定时器就启动 timer.start(); //把食物随机分配在界面上 foodX = 25 + 25*random.nextInt(34); foodY = 75 + 25*random.nextInt(24); score = 0; } /** *绘制画板,游戏当中的所有东西都是用这个画笔绘制 */ @Override protected void paintComponent(Graphics g) { //清屏 super.paintComponent(g); //设置背景色为白色 this.setBackground(Color.white); //头部广告栏画上去 Data.header.paintIcon(this,g,25,11); //画一个矩形(游戏界面) g.fillRect(25,75,850,600); //画积分 g.setColor(Color.white); g.setFont(new Font("微软雅黑",Font.BOLD,18)); g.drawString("长度"+length,750,35); g.drawString("分数"+score,750,50); //把食物画上去 Data.food.paintIcon(this,g,foodX,foodY); //把小蛇画上去(蛇头,第一个身体,第二个身体.....) if(fxR.equals(fx)){ Data.right.paintIcon(this,g,snakeX[0],snakeY[0]); }else if (fxL.equals(fx)){ Data.left.paintIcon(this,g,snakeX[0],snakeY[0]); }else if (fxU.equals(fx)){ Data.up.paintIcon(this,g,snakeX[0],snakeY[0]); }else if (fxD.equals(fx)){ 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]); } //若游戏状态是停止提示按下空格开始游戏 if(!isStart) { 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); } //当失败时,提示按下空格开始游戏 if(isFail) { g.setColor(Color.RED); g.setFont(new Font("微软雅黑",Font.BOLD,40)); g.drawString("失败,按下空格开始游戏",300,300); } } @Override public void keyTyped(KeyEvent e) { } /** * @description: 键盘监听事件 * @params: [e] * @return: void * @exception: * @author: HuQi * @date: 2021/4/1 17:18 */ @Override public void keyPressed(KeyEvent e) { //获得按下的是键盘的哪一个键 int keyCode = e.getKeyCode(); if (keyCode == KeyEvent.VK_SPACE){ if (isFail){ isFail= false; init(); }else { isStart = !isStart; repaint(); } } 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"; } } @Override public void keyReleased(KeyEvent e) { } /** * @description: 事件监听,需要通过固定的时间刷新,比如1秒10次 * @params: [e] * @return: void * @exception: * @author: HuQi * @date: 2021/4/1 20:16 */ @Override public void actionPerformed(ActionEvent e) { //如果游戏是开始状态,就让小蛇动起来 if(isStart && !isFail){ //吃食物后蛇的长度加1分数加10,并且重新生成食物 if (snakeX[0] == foodX && snakeY[0] == foodY){ length++; score+=10; foodX = 25 + 25*random.nextInt(34); foodY = 75 + 25*random.nextInt(24); } //移动(后一节身体移到前一节的位置,第一节移到头的位置snakeX[1] = snakeX[0]) for (int i = length - 1; i > 0 ; i--) { snakeX[i] = snakeX[i-1]; snakeY[i] = snakeY[i-1]; } //判断走向 if (fxU.equals(fx)){ snakeY[0] = snakeY[0]-25; if(snakeY[0] < snakeMinY) {snakeY[0] = snakeMaxY; } }else if (fxD.equals(fx)){ snakeY[0] = snakeY[0]+25; if(snakeY[0] >snakeMaxY) {snakeY[0] = snakeMinY; } }else if (fxL.equals(fx)){ snakeX[0] = snakeX[0]-25; if(snakeX[0] < snakeMinX) {snakeX[0] = snakeMaxX; } }else if (fxR.equals(fx)){ snakeX[0] = snakeX[0]+25; //边界判断 if(snakeX[0] > snakeMaxX) {snakeX[0] = snakeMinX; } } //失败判断,撞到自己算失败 int i = 1; while (i <length) { if (snakeX[0] == snakeX[i]&&snakeY[0] == snakeY[i]){ isFail = true; break; } i++; } //重画页面 repaint(); } } }