Java Swing实现烟花效果（含音乐效果）

约定不等于承诺〃 2023-09-23 14:33 140阅读 0赞

## 前言必读 ##

> [读者手册（必读）\_云边的快乐猫的博客-CSDN博客][-CSDN]

**一、前言：**

Java Swing实现烟花效果，在idea里面运行，要导入一个音乐的jar包[（这是超链接）][Link 1]

效果图：

![25d7c5241f39457a8d8656a07d762329.png][]

**二、代码**

注解：这两个类要一起用才能运行

**烟花类：**

package com.woody.Main.play;
    
    import javazoom.jl.decoder.JavaLayerException;
    
    import javax.swing.*;
    import java.applet.Applet;
    import java.awt.*;
    import java.awt.event.MouseEvent;
    import java.awt.event.MouseListener;
    import java.awt.event.WindowAdapter;
    import java.awt.event.WindowEvent;
    import java.io.File;
    import java.io.FileNotFoundException;
    
    public  class  YanHua extends Applet implements MouseListener, Runnable {
    
        int xClick, yClick;
        static int panelLength = 1075;
        static int panelHeight = 604;
        //烟花上升速度
        static int upSpeed = 5;
        //爆炸条数
        static int boomNum = 100;
        //重力加速度
        static double G = 9.8;
        //摩擦力加速度
        static double GM = 5;
        //半径
        static int d = 1500;
        //频率
        static double freq = 0.08;
        //烟花炸开时保留长度
        static int boomLength = 7;
        //上升图形宽度
        static int upWidth = 5;
        //上升高度
        static int upHeight = 5;
        //爆炸点宽度
        static int boomWidth = 3;
        //爆炸点高度
        static int boomHeight = 3;
        //水平速度
        static int horV = 50;
        //竖直速度
        static int verV = 40;
        //总速度
        static int sumV = 60;
    
    
        YanHua() {
            addMouseListener(this);
        }
    
        @Override
        public void paint(Graphics g) {
    
            ImageIcon image = new ImageIcon("D:\\图片\\534.jpeg");
            getGraphics().drawImage(image.getImage(), 0, 0, getSize().width, getSize().height, this);
            super.paint(g);
        }
    
        @Override
        public void paintComponents(Graphics g) {
            super.paintComponents(g);
        }
    
        /**
         * 使该程序能够作为应用程序执行。
         */
    
        public static void main(String args[]) {
            YanHua fireFlower = new YanHua();
            JFrame frame = new JFrame("最美烟花");
            frame.addWindowListener(new WindowAdapter() {
                public void windowClosing(WindowEvent e) {
                    System.exit(0);
                }
            });
            frame.getContentPane().add(fireFlower, BorderLayout.CENTER);
            frame.setSize(panelLength, panelHeight);
            //背景色黑色
            fireFlower.setBackground(Color.black);
            fireFlower.init();
            fireFlower.start();
            frame.setVisible(true);
            YanHuaMusic audioPlayer = new YanHuaMusic(new File("D:\\CloudMusic\\《开心宝贝》开心往前飞（Ellison Mashup）.mp3"));//这是音频文件地址
            try {
                audioPlayer.play();
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (JavaLayerException e) {
                e.printStackTrace();
            }
        }
    
        /**
         * 点击会产生一个线程来执行烟花升空
         */
        public void run() {
    
            //已移动量,会递减，直到大于鼠标点击的y坐标
            int hasMoved = panelHeight;
            //需要一个线程级变量来存储单个线程的坐标
            int threadyClick = yClick;
            int threadxClick = xClick;
            //新建一个Graphics变量
            Graphics graphics = getGraphics();
            int v;
            v = 3;
            //rgb颜色变量
            int r, g, b;
            //烟花上升过程
            while (threadyClick < hasMoved) {
                hasMoved -= upSpeed;
                graphics.setColor(new Color(247, 247, 248));
                graphics.fillOval(threadxClick, hasMoved, upWidth, upHeight);
                for (int j = 0; j <= 10; j++) {
                    graphics.setColor(new Color(247, 247, 248));
                    graphics.fillOval(threadxClick, hasMoved + j * upSpeed, upWidth, upHeight);
                }
                graphics.setColor(Color.black);
                graphics.fillOval(threadxClick, hasMoved + upSpeed * 10, upWidth, upHeight);
                try {
                    Thread.currentThread().sleep(v++);
                } catch (InterruptedException e) {
                }
            }
            //置黑色
            for (int j = 10; j >= 0; j--) {
                graphics.setColor(Color.black);
                graphics.fillOval(threadxClick, hasMoved + (j * upSpeed), upWidth, upHeight);
                try {
                    Thread.currentThread().sleep((v++) / 3);
                } catch (InterruptedException e) {
                }
            }
    
            hasMoved = panelHeight;
            while (hasMoved > threadyClick) {
                graphics.setColor(Color.black);
                graphics.fillOval(threadxClick - 2, hasMoved, upWidth, upHeight);
                hasMoved -= upSpeed;
            }
            int atX = threadxClick;
            int atY = threadyClick;
    
            //初始化x、y方向初速度
            int x0 = 0;
            int y0 = 0;
            int[][] xPoints = new int[boomNum][400];
            int[][] yPoints = new int[boomNum][400];
            int[] usedSize = new int[boomNum];
            for (int j = 0; j < boomNum; j++) {
                x0 = (int) (Math.random() * (sumV * 2 + 1)) - sumV;
    //            y0 = (int) (Math.random() * verV) - verV / 2;
                int yinit = (int) Math.sqrt(sumV * sumV - x0 * x0);
                y0 = yinit >= 0 ? yinit : -yinit;
                y0 = (int) (Math.random() * y0);
                for (int i = 0; i < 400; i++) {
                    int y = (int) (y0 * i * freq - 0.5 * G * i * i * freq * freq - 0.5 * GM * i * i * freq * freq);
                    int x = (int) (x0 * i * freq - 0.5 * GM * i * i * freq * freq);
    
    //                x = Math.abs(x) > Math.abs(atX - xPoints[j][i - 1]) ? x : atX - xPoints[j][i - 1];
                    if (x * x + y * y <= d * d) {
                        xPoints[j][i] = atX - x;
                        yPoints[j][i] = atY - y;
                        usedSize[j]++;
                    } else {
                        break;
                    }
                }
            }
    
            v = 20;
    
            r = (int) (Math.random() * (255 - 200 + 1) + 200);
            g = (int) (Math.random() * (255 - 150 + 1) + 150);
            b = (int) (Math.random() * (255 - 10 + 1) + 10);
            for (int j = 0; j <= 30; j++) {
                for (int i = 0; i < boomNum; i++) {
                    //剔除空值
                    int pointSize = 0;
                    int[] thisPointsx = new int[400];
                    int[] thisPointsy = new int[400];
                    for (int size = 0; size < xPoints[i].length; size++) {
                        if (xPoints[i][size] != 0 && yPoints[i][size] != 0) {
                            thisPointsx[pointSize] = xPoints[i][size];
                            thisPointsy[pointSize] = yPoints[i][size];
                            pointSize++;
                        }
                    }
                    if (j < boomLength) {
                        graphics.setColor(new Color(247, 247, 248));
                        graphics.fillOval(thisPointsx[j], thisPointsy[j], boomWidth + 10, boomHeight);
                    } else {
                        graphics.setColor(new Color(r, g, b));
                        graphics.fillOval(thisPointsx[j], thisPointsy[j], boomWidth, boomHeight);
                    }
    
    //                graphics.drawPolyline(thisPointsx, thisPointsy, usedSize[i]);
    
                    if (j >= boomLength) {
                        graphics.setColor(Color.black);
    //                    graphics.drawPolyline(thisPointsx, thisPointsy, j - boomLength);
                        graphics.fillOval(thisPointsx[j - boomLength], thisPointsy[j - boomLength], boomWidth + 10, boomHeight);
                    }
                }
                v++;
                v = Math.min(v, 150);
                try {
                    Thread.currentThread().sleep(v);
                } catch (InterruptedException e) {
                }
            }
    
            for (int i = 0; i < boomNum; i++) {
                for (int j = 0; j < 100; j++) {
                    graphics.setColor(Color.black);
    //                graphics.drawPolyline(xPoints[i], yPoints[i], 100);
                    graphics.fillOval(xPoints[i][j], yPoints[i][j], boomWidth, boomHeight);
                }
            }
        }
    
        public void mouseClicked(MouseEvent e) {
    
        }
    
        /**
         * 监听鼠标按键
         *
         * @param e
         */
        public void mousePressed(MouseEvent e) {
            xClick = e.getX();
            yClick = e.getY();
            Thread thread = new Thread(this);
            thread.start();
        }
    
        public void mouseReleased(MouseEvent e) {
    
        }
    
        public void mouseEntered(MouseEvent e) {
    
        }
    
        public void mouseExited(MouseEvent e) {
    
        }
    }

**音乐类：**

package com.woody.Main.play;
    
    import javazoom.jl.decoder.JavaLayerException;
    import javazoom.jl.player.Player;
    
    import java.io.BufferedInputStream;
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.FileNotFoundException;
    
    
    public class YanHuaMusic {
        Player player;
        File music;
        //构造方法  参数是一个.mp3音频文件
        public YanHuaMusic(File file) {
            this.music = file;
        }
        //播放方法
        public void play() throws FileNotFoundException, JavaLayerException {
    
            BufferedInputStream buffer = new BufferedInputStream(new FileInputStream(music));
            player = new Player(buffer);
            player.play();
        }
    }

[-CSDN]: https://blog.csdn.net/m0_52861000/article/details/128148568?spm=1001.2014.3001.5501
[Link 1]: https://repo1.maven.org/maven2/javazoom/jlayer/1.0.1/jlayer-1.0.1.jar
[25d7c5241f39457a8d8656a07d762329.png]: https://img-blog.csdnimg.cn/25d7c5241f39457a8d8656a07d762329.png