前言
《布谷鸟闯关-简单版》是一个基于java的布谷鸟闯关游戏，摁上键控制鸟的位置穿过管道间的缝隙，需要做碰撞检测，监听键盘事件，背景图片的切换，障碍物管道产生时y轴上需要随机位置。
主要设计
- 设计游戏界面，用swing实现
- 设计背景
- 设计移动墙
- 设计布谷鸟
- 设计障碍物
- 设计背景音乐和音效
- 由几个关键的布尔类型变量start,crash,over是产生键键盘事件时用来控制界面显示的弹框的
- 操作：空格键开始游戏，enter键取消"game over"弹框，摁空格键继续，上键(up)是对鸟的控制
- 工具类ImageMgr专用于读取图片
功能截图
游戏开始：
控制布谷鸟
飞过障碍物
撞到障碍物，游戏结束
代码实现
游戏启动类
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public class Main { public static void main(String[] args) { Cuckoo frame = new Cuckoo(); while (true){ try { Thread.sleep(100); if(!frame.crash){ frame.repaint(); } } catch (InterruptedException e) { e.printStackTrace(); } } }} |
核心类
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/** * 1.窗口 * 2.背景 * 3.移动墙 * 4.布谷鸟 * 5.障碍物 * 6.背景音乐 * 7.音效 * 8.欢迎界面 * 9.game over */public class Cuckoo extends Frame { private int step; private int score; private int height; private int moveLeft; private int pipeMove; boolean crash = false; private boolean over = false; private boolean start = false; private static int bird_y = 270; private static final int L_X = 800; private static final int L_Y = 200; private static final int SPEED = 2; private static final int BIRD_X = 100; private static final int GAME_X_Y_0 = 0; private static final int GAME_WIDTH = 288; private static final int GAME_HEIGHT = 512; private static final int PIPE_WIDTH = ImageMgr.pipe.getWidth(); private static final int PIPE_HEIGHT = ImageMgr.pipe.getHeight(); private static final int READY_WIDTH = ImageMgr.ready.getWidth(); private static final int READY_HEIGHT = ImageMgr.ready.getHeight(); private static final int START_WIDTH = ImageMgr.start.getWidth(); private static final int BIRD_WIDTH = ImageMgr.bird[0].getWidth(); private static final int BIRD_HEIGHT = ImageMgr.bird[0].getWidth(); private static final int GROUND_HEIGHT = ImageMgr.ground.getHeight(); private static final int GAME_OVER_WIDTH = ImageMgr.gameOver.getWidth(); private static final int GAME_OVER_HEIGHT = ImageMgr.gameOver.getHeight(); private static final int BACKGROUND_HEIGHT = ImageMgr.background.getHeight(); private static Image offScreenImage; private static Rectangle pipeRectangle1; private static Rectangle pipeRectangle2; private static Rectangle birdRectangle; Cuckoo(){ setVisible(true); setResizable(false); //setTitle("cuckoo"); setBounds(L_X, L_Y,GAME_WIDTH,GAME_HEIGHT); addKeyListener(new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { switch (e.getKeyCode()){ case KeyEvent.VK_SPACE : start = true;break; case KeyEvent.VK_ENTER : reopen();break; } } @Override public void keyReleased(KeyEvent e) { if (e.getKeyCode() == KeyEvent.VK_UP) { bird_y -= 20; } } }); addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { System.exit(0); } }); } @Override public void update(Graphics g) { if(offScreenImage == null){ offScreenImage = this.createImage(GAME_WIDTH,GAME_HEIGHT); } Graphics gOffScreen = offScreenImage.getGraphics(); Color c = gOffScreen.getColor(); gOffScreen.setColor(Color.BLACK); gOffScreen.fillRect(0,0,GAME_WIDTH,GAME_HEIGHT); gOffScreen.setColor(c); paint(gOffScreen); g.drawImage(offScreenImage,0,0,null); } @Override public void paint(Graphics g) { background(g); ground(g); start(g); if(start){ bird(g); pipe(g); colliedWith(); gameOver(g); score(g); } } //如果碰撞后，可以嗯enter键重开 private void reopen(){ if(crash){ score = 0; over = false; crash = false; start = false; moveLeft = 0; pipeMove = 0; //bird_y = 270;//继上次死的位置开始 } } private void score(Graphics g){ Font font = new Font("微软雅黑",Font.BOLD,18); g.setFont(font); Color c = g.getColor(); g.setColor(Color.lightGray); g.drawString("score " + score,20,70); g.setColor(c); } private void background(Graphics g){ g.drawImage(ImageMgr.background, GAME_X_Y_0 - moveLeft,GAME_X_Y_0, GAME_WIDTH - moveLeft,GAME_HEIGHT, GAME_X_Y_0, GAME_X_Y_0, GAME_WIDTH, GAME_HEIGHT, null); g.drawImage(ImageMgr.background, GAME_WIDTH-1 - moveLeft,GAME_X_Y_0, GAME_WIDTH*2 - moveLeft, GAME_HEIGHT, GAME_X_Y_0, GAME_X_Y_0, GAME_WIDTH, GAME_HEIGHT, null); moveLeft += SPEED; //游戏启动计分 if(start && moveLeft % 100 == 0){ score += 1; } if(moveLeft >= GAME_WIDTH){ moveLeft = 0; } } private void ground(Graphics g){ g.drawImage(ImageMgr.ground,0,BACKGROUND_HEIGHT - GROUND_HEIGHT,null); } private void bird(Graphics g){ Color c = g.getColor(); g.setColor(Color.BLUE); g.drawRect(BIRD_X, bird_y,BIRD_WIDTH,BIRD_HEIGHT); g.setColor(c); g.drawImage(ImageMgr.bird[step++], BIRD_X, bird_y,null); if(step >= ImageMgr.bird.length){ step = 0; } if(start){ bird_y += 4; } birdRectangle = new Rectangle(BIRD_X,bird_y,BIRD_WIDTH,BIRD_HEIGHT); } private void pipe(Graphics g){ drawPipe(g); pipeMove += SPEED; if(pipeMove >= GAME_WIDTH + PIPE_WIDTH){ pipeMove = 0; Random ran = new Random(); height = ran.nextInt(10)*20; drawPipe(g); } } private void drawPipe(Graphics g){ g.setColor(Color.RED);// g.drawRect(GAME_WIDTH - pipeMove,GAME_HEIGHT/5*3 - height,PIPE_WIDTH,PIPE_HEIGHT);// g.drawRect(GAME_WIDTH - pipeMove,-GAME_HEIGHT/5*4 - height,PIPE_WIDTH,PIPE_HEIGHT); g.drawImage(ImageMgr.pipe,GAME_WIDTH - pipeMove,GAME_HEIGHT/5*3 - height,null); g.drawImage(ImageMgr.pipe,GAME_WIDTH - pipeMove,-GAME_HEIGHT/5*4 - height,null); pipeRectangle1 = new Rectangle(GAME_WIDTH - pipeMove,GAME_HEIGHT/5*3 - height,PIPE_WIDTH,PIPE_HEIGHT); pipeRectangle2 = new Rectangle(GAME_WIDTH - pipeMove,-GAME_HEIGHT/5*4 - height,PIPE_WIDTH,PIPE_HEIGHT); } private void gameOver(Graphics g){ if(over){ g.drawImage(ImageMgr.gameOver,GAME_WIDTH/2 - GAME_OVER_WIDTH/2, GAME_HEIGHT/2 - GAME_OVER_HEIGHT,null); } } private void start(Graphics g){ if(!start){ g.drawImage(ImageMgr.ready,GAME_WIDTH/2 - READY_WIDTH/2, GAME_HEIGHT/2 - READY_HEIGHT,null); g.drawImage(ImageMgr.start,GAME_WIDTH/2 - START_WIDTH/2, GAME_HEIGHT/2,null); } } private void colliedWith(){ if(birdRectangle.intersects(pipeRectangle1) || birdRectangle.intersects(pipeRectangle2)){ crash = true; over = true; //gameOver(g); } }} |
工具类
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public class ImageMgr { static BufferedImage background,ground,pipe,gameOver,start,ready; static BufferedImage[] bird = new BufferedImage[3]; private static final ImageMgr INSTANCE = new ImageMgr(); //nothing private ImageMgr(){ initImage(); }; private void initImage(){ try { background = ImageIO.read(Objects.requireNonNull(Cuckoo.class.getClassLoader().getResourceAsStream("images/bg_light.png"))); ground = ImageIO.read(Objects.requireNonNull(Cuckoo.class.getClassLoader().getResourceAsStream("images/ground.png"))); pipe = ImageIO.read(Objects.requireNonNull(Cuckoo.class.getClassLoader().getResourceAsStream("images/pipe.png"))); gameOver = ImageIO.read(Objects.requireNonNull(Cuckoo.class.getClassLoader().getResourceAsStream("images/gameover.png"))); start = ImageIO.read(Objects.requireNonNull(Cuckoo.class.getClassLoader().getResourceAsStream("images/start.png"))); ready = ImageIO.read(Objects.requireNonNull(Cuckoo.class.getClassLoader().getResourceAsStream("images/ready.png"))); for(int i = 0;i < 3;i++){ bird[i] = ImageIO.read(Objects.requireNonNull(Cuckoo.class.getClassLoader().getResourceAsStream("images/blueBird_" + (i+1) + ".png"))); } } catch (IOException ex) { ex.printStackTrace(); } } public static ImageMgr getInstance(){ return INSTANCE; }} |
总结
通过此次的《布谷鸟闯关-简单版》实现，让我对JAVA的相关知识有了进一步的了解，对java这门语言也有了比以前更深刻的认识。
java的一些基本语法，比如数据类型、运算符、程序流程控制和数组等，理解更加透彻。java最核心的核心就是面向对象思想，对于这一个概念，终于悟到了一些。
以上就是Java实现经典游戏Flappy Bird的示例代码的详细内容，更多关于Java Flappy Bird游戏的资料请关注服务器之家其它相关文章！
原文链接：https://juejin.cn/post/7068587606967058463
