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java实现Flappy Bird游戏（附免费素材+代码+详细注解）
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目录
前言一、实现效果二、实现代码
前言
该小游戏我设计成BackGroundView类（背景图）、Bird类、Pipe类，Main类四部分
BackGroundView.java import javax.imageio.ImageIO; import javax.swing.*; import java.awt.*; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.awt.image.BufferedImage; import java.util.Date; import java.text.SimpleDateFormat; import java.io.IOException; public class BackGroundView extends JPanel { BufferedImage bgImage; //背景图片 BufferedImage groundImg;//地面图片 BufferedImage imgStart;//开始游戏图片 BufferedImage imgEnd;//GameOVer图片 public int bg_width;//背景图片宽度 public int bg_height;//背景图片高度 public int ground_width;//地面图片宽度 public int ground_height;//地面图片高度 public int ground_x,ground_y;//地面绘制起始坐标 public int speed = 0;//管道和地面移动的速度 public int state = 0;//游戏状态，0表示未开始，1表示正在玩，2表示GameOver public static final int MOVE_SPEED1 = 50;// 地面及柱子移动初始速度，当积分累加，速度会递增 public static final int jframeWidth = 432;//窗口宽度（bg.png宽度） public static final int jframeHeight = 644;//窗口高度（bg.png高度） public static final String PATH_PIC = "\\pictures\\"; public static final String PATH_BG = PATH_PIC + "bg.png";//背景图片路径 public static final String PATH_GROUND = PATH_PIC + "ground.png"; public static final String PATH_IMGSTART = PATH_PIC + "start.png"; public static final String PATH_IMGEND = PATH_PIC + "gameover.png"; public static final int FONT_SIZE = 30;//得分字体大小 public static final int SCORE_X = 20; public static final int SCORE_Y = 40; public int score; public JFrame jframeMain; public GameBoard gameBoard; public Bird bird; public Pipe pipe1,pipe2; public BackGroundView(){ initFrame();//初始化窗口 } public void initFrame(){ jframeMain = new JFrame("Flappy Bird"); jframeMain.setSize(jframeWidth, jframeHeight); jframeMain.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jframeMain.setLocationRelativeTo(null);//居中显示 jframeMain.setResizable(false);//窗口Size固定 gameBoard = new GameBoard();//初始化内部类GameBoard jframeMain.add(gameBoard); Thread moveAll = new Thread(gameBoard); moveAll.start(); } //游戏面板 class GameBoard extends JPanel implements Runnable{ public GameBoard(){ initGame();//初始化游戏 } public void initGame(){ //原则：先加载后绘制 try{ //1、加载背景图片 bgImage = ImageIO.read(this.getClass().getResource(PATH_BG));//根据当前路径加载图片进内存 //获取图片宽度与高度 bg_width = bgImage.getWidth(); bg_height = bgImage.getHeight(); System.out.println("bg_width:" + bg_width + "，bg_height:" + bg_height); //2、加载地面图片，注意大的图片要先加载，否则会遮住之前加载的 groundImg = ImageIO.read(this.getClass().getResource(PATH_GROUND)); ground_width = groundImg.getWidth(); ground_height = groundImg.getHeight(); ground_x = 0; ground_y = bg_height - ground_height; System.out.println("ground_width:" + ground_width + "，ground_height:" + ground_height); System.out.println("ground_x:" + ground_x + "，ground_y:" + ground_y); //3、加载开始和结束图片 imgStart = ImageIO.read(this.getClass().getResource(PATH_IMGSTART)); imgEnd = ImageIO.read(this.getClass().getResource(PATH_IMGEND)); //4、加载小鸟图片，并在绘制中绘制小鸟,在run中让小鸟飞动 bird = new Bird(); //5、加载管道图片，一个窗口中最多显示两个管道 pipe1 = new Pipe(bg_width, bg_height, ground_height); pipe1.x = bg_width;//第一根管道位置 pipe2 = new Pipe(bg_width, bg_height, ground_height); pipe2.x = bg_width + Pipe.PIPE_DISTANCE;//第二跟管道位置 }catch (IOException e){ } //3、让地面移动 speed = MOVE_SPEED1;//速度初始化 } @Override public void run() { action();//处理键盘事件 //移动 while(true){ try{ if (state == 0) { groundMove();//地面移动，初始化窗口未开始游戏地面和小鸟就要动 bird.fly();//小鸟飞动 }else if (state == 1){ groundMove();//地面移动，初始化窗口未开始游戏地面和小鸟就要动 bird.fly();//小鸟飞动 bird.down();//仅游戏开始时下降 pipe1.move();//让两根管子动起来 pipe2.move(); //小鸟撞到地面，天空，柱子都GameOver if (bird.hitPipe(pipe1) || bird.hitPipe(pipe2) || bird.hitGround(bg_height, ground_height) || bird.hitSky()){ state = 2; }else { if (bird.addScore(pipe1) || bird.addScore(pipe2)){ //每次通过一个得分加10分，速度也增加 score += 10; speed += 2; } } }else if (state == 2){ } Thread.sleep(1000 / speed);//speed越大线程休眠时间越少，执行次数越多，速度就越快 this.repaint();//刷新，会自动重新调用paint()方法 }catch (InterruptedException e){ } } } public void groundMove(){ ground_x--;//地面左移，可以实现小鸟右移 if (ground_x == bg_width - ground_width + 9){//9为修正值，自己调的，保证移动更流畅 ground_x = 0; } } public void action(){ //设置监听事件 this.addMouseListener(new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { super.mouseClicked(e); switch(state){ case 0://游戏未开始点击，就切换为开始游戏 state = 1; bird.x = Bird.BIRD_FLY_X; bird.y = Bird.BIRD_FLY_Y; break; case 1://游戏开始 bird.up();//游戏中点击就是上升 break; case 2: //切换到未开始状态，得分清零，小鸟与管道位置重置 state = 0; score = 0; bird.x = Bird.BIRD_X; bird.y = Bird.BIRD_Y; pipe1.x = bg_width; pipe2.x = bg_width + Pipe.PIPE_DISTANCE; break; default: break; } } }); } @Override public void paint(Graphics g) { super.paint(g); //System.out.println("paint方法被调用时间:" + getCurrentTime()); g.drawImage(bgImage,0,0,null);//绘制背景 if (state == 0){//游戏未开始 g.drawImage(imgStart,0,0,null); g.drawImage(bird.img, bird.x, bird.y, null); }else if (state == 1){//游戏开始 g.drawImage(bird.img, bird.x, bird.y, null);//点击开始后，初始坐标也同时变 g.drawImage(pipe1.img, pipe1.x, pipe1.y, null); g.drawImage(pipe2.img, pipe2.x, pipe2.y, null); }else if (state == 2){//游戏结束 g.drawImage(imgEnd,0,0,null); } g.drawImage(groundImg , ground_x, ground_y, null);//绘制地面 //绘制分数 Graphics2D gg = (Graphics2D) g; Font scoreFont = new Font("微软雅黑", Font.BOLD, FONT_SIZE);//得分字体 //下面两句是抗锯齿模式，消除文字锯齿，字体更清晰顺滑 gg.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); gg.setRenderingHint(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_NORMALIZE); gg.setFont(scoreFont); gg.setColor(Color.WHITE); gg.drawString("" + score, SCORE_X, SCORE_Y); } //当前时间 public String getCurrentTime() { Date day = new Date(); SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS"); return df.format(day); } } public void showView(){ jframeMain.setVisible(true); } }Bird.java import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.IOException; //小鸟类 public class Bird { public static final int BIRD_PIC_COUNT = 8;//小鸟图片个数，8张图片轮播形成飞行时的样子 public static final int BIRD_X = 190;//初始化小鸟坐标(游戏未开始小鸟位置) public static final int BIRD_Y = 220; public static final int BIRD_FLY_X = 120;//开始游戏后小鸟初始坐标 public static final int BIRD_FLY_Y = 240; public static final int BIRD_UP_SPEED = 6; public static int index = 0;//当前小鸟图片序号 public int x,y;//小鸟坐标 public int width;//小鸟宽度 public int height;//小鸟高度 public double g = 9.8;//重力加速度 public double t = 0.05;//自然下降时间 public double v,h;//下降速度与下降距离 BufferedImage img; BufferedImage[] imgs = new BufferedImage[BIRD_PIC_COUNT]; public Bird(){ try{ for (int i = 0; i = (bg_height - ground_height)) { return true; } return false; } // 碰撞到舞台顶部 public boolean hitSky() { if (y = p.x && x |
图片素材地址：https://download.csdn.net/download/weixin_39615182/15051363 
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