传说中的Java烟花程序

coollor

墨衍会员 · AI 创作全网分发码龄15年

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原创最新推荐文章于 2025-11-23 09:51:43 发布 2.3w 阅读 AI 写同款· GEO 优化 ›

【神奇代码岛】【JAVA script】烟花代码教程神奇代码岛烟花JAVA script代码教程阅读详情

相信看到这些美丽的烟花图片，你会发现原来java也可以这么美

并且还是用awt做的，更是实属不易，但在此声明此程序并非出自本人之手

只是个人觉得这么美好的东西不应该被埋没于时间中，应该让更多人知道它的美

在此特将我收藏的烟花程序的代码贴出来与大家分享

同时也非常感谢这位牛人把这么好程序放到网上给人学习，让你我受益

主程序：

App.java

import java.applet.Applet;
import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class App extends Applet {
	public void init() {
		Canvas canvas = new Canvas();
		canvas.setSize(getWidth(), getHeight());
		add(canvas);
		canvas.gravity = Double.parseDouble(getParameter("gravity")) / 100;
		canvas.damp = Double.parseDouble(getParameter("damp")) / 100;
		canvas.skyrocketVelocity = Double
				.parseDouble(getParameter("skyrocketVelocity")) / -1;
		canvas.skyrocketWidth = Integer
				.parseInt(getParameter("skyrocketWidth"));
		canvas.skyrocketHeight = Integer
				.parseInt(getParameter("skyrocketHeight"));
		canvas.pieceNumber = Integer.parseInt(getParameter("pieceNumber"));
		canvas.pieceInitialVelocity = Double
				.parseDouble(getParameter("pieceInitialVelocity"));
		canvas.pieceDarkerFactor = Double
				.parseDouble(getParameter("pieceDarkerFactor")) / 100;
		canvas.pieceWidth = Integer.parseInt(getParameter("pieceWidth"));
		canvas.pieceHeight = Integer.parseInt(getParameter("pieceHeight"));
		canvas.traceDarkerFactor = Double
				.parseDouble(getParameter("traceDarkerFactor")) / 100;
		canvas.init();
	}

	public static void main(String[] args) throws Exception {

		Frame frame = new Frame();
		frame.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});

		Canvas canvas = new Canvas();
		canvas.setSize(400, 400);
		frame.add(canvas);
		frame.pack();
		frame.setLocationRelativeTo(null);
		frame.show();

		canvas.gravity = 1.0;
		canvas.damp = 0.75;
		canvas.skyrocketVelocity = -82;
		canvas.skyrocketWidth = 4;
		canvas.skyrocketHeight = 8;
		canvas.pieceNumber = 200;
		canvas.pieceInitialVelocity = 72;
		canvas.pieceDarkerFactor = 0.90;
		canvas.pieceWidth = 1;
		canvas.pieceHeight = 2;
		canvas.traceDarkerFactor = 0.70;
		canvas.frameDelay = 50;

		canvas.init();

	}

}

其它为辅助程序：

Canvas.java

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.Random;
import java.util.TreeSet;

import javax.swing.Timer;

class Canvas extends java.awt.Canvas {
	double gravity = 1.0;
	double damp = 0.75;
	double skyrocketVelocity = -82;
	int skyrocketWidth = 4;
	int skyrocketHeight = 8;
	int pieceNumber = 200;
	double pieceInitialVelocity = 72;
	double pieceDarkerFactor = 0.90;
	int pieceWidth = 1;
	int pieceHeight = 2;
	double traceDarkerFactor = 0.70;
	int frameDelay = 40;
	int border = 10;

	Random random = new Random(System.currentTimeMillis());
	int currentTime;
	TreeSet things = new TreeSet();
	Skyrocket currentSkyrocket;
	Image offscreenImage;
	Graphics offscreenGraphics;

	void init() {
		setBackground(Color.BLACK);
		offscreenImage = createImage(getWidth(), getHeight());
		offscreenGraphics = offscreenImage.getGraphics();
		addMouseListener(new MouseAdapter() {
			public void mousePressed(MouseEvent e) {
				onMousePress(e);
			}

			public void mouseReleased(MouseEvent e) {
				onMouseRelease(e);
			}
		});
		addKeyListener(new KeyAdapter() {
			public void keyPressed(KeyEvent e) {
				onKeyPress(e);
			}
		});
		new Timer(frameDelay, new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				repaint();
			}
		}).start();
		requestFocus();
	}

	void onMousePress(MouseEvent e) {

		if (currentSkyrocket != null)
			currentSkyrocket.explode();

		int r = random.nextInt(256);
		int g = random.nextInt(256);
		int b = random.nextInt(256);
		int max = r > g ? r : g;
		max = max > b ? max : b;
		double brighter = 255.0 / max;
		r = (int) (r * brighter);
		g = (int) (g * brighter);
		b = (int) (b * brighter);
		Color color = new Color(r, g, b);

		currentSkyrocket = new Skyrocket(this, color, e.getX());
		things.add(currentSkyrocket);

	}

	void onMouseRelease(MouseEvent e) {
		if (currentSkyrocket != null) {
			currentSkyrocket.explode();
			currentSkyrocket = null;
		}
	}

	void onKeyPress(KeyEvent e) {
		if (e.getKeyCode() == KeyEvent.VK_Q) {
			gravity += 0.01;
		}
		if (e.getKeyCode() == KeyEvent.VK_A) {
			gravity -= 0.01;
			if (gravity < 0)
				gravity = 0;
		}
		if (e.getKeyCode() == KeyEvent.VK_W) {
			damp += 0.01;
			if (damp > 1)
				damp = 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_S) {
			damp -= 0.01;
			if (damp < 0)
				damp = 0;
		}
		if (e.getKeyCode() == KeyEvent.VK_E) {
			skyrocketVelocity -= 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_D) {
			skyrocketVelocity += 1;
			if (skyrocketVelocity > 0)
				skyrocketVelocity = 0;
		}
		if (e.getKeyCode() == KeyEvent.VK_R) {
			skyrocketWidth += 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_F) {
			skyrocketWidth -= 1;
			if (skyrocketWidth < 1)
				skyrocketWidth = 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_T) {
			skyrocketHeight += 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_G) {
			skyrocketHeight -= 1;
			if (skyrocketHeight < 1)
				skyrocketHeight = 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_Y) {
			pieceNumber += 10;
		}
		if (e.getKeyCode() == KeyEvent.VK_H) {
			pieceNumber -= 10;
			if (pieceNumber < 0)
				pieceNumber = 0;
		}
		if (e.getKeyCode() == KeyEvent.VK_U) {
			pieceInitialVelocity += 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_J) {
			pieceInitialVelocity -= 1;
			if (pieceInitialVelocity < 0)
				pieceInitialVelocity = 0;
		}
		if (e.getKeyCode() == KeyEvent.VK_I) {
			pieceDarkerFactor += 0.01;
			if (pieceDarkerFactor > 1)
				pieceDarkerFactor = 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_K) {
			pieceDarkerFactor -= 0.01;
			if (pieceDarkerFactor < 0)
				pieceDarkerFactor = 0;
		}
		if (e.getKeyCode() == KeyEvent.VK_O) {
			pieceWidth += 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_L) {
			pieceWidth -= 1;
			if (pieceWidth < 1)
				pieceWidth = 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_P) {
			pieceHeight += 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_SEMICOLON) {
			pieceHeight -= 1;
			if (pieceHeight < 1)
				pieceHeight = 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_OPEN_BRACKET) {
			traceDarkerFactor += 0.01;
			if (traceDarkerFactor > 1)
				traceDarkerFactor = 1;
		}
		if (e.getKeyCode() == KeyEvent.VK_QUOTE) {
			traceDarkerFactor -= 0.01;
			if (traceDarkerFactor < 0)
				traceDarkerFactor = 0;
		}
		System.out.println("g" + (int) (gravity * 100) + " " + "d"
				+ (int) (damp * 100) + " " + "sv"
				+ (int) (-skyrocketVelocity * 1) + " " + "sw"
				+ (int) (skyrocketWidth * 1) + " " + "sh"
				+ (int) (skyrocketHeight * 1) + " " + "pn"
				+ (int) (pieceNumber * 1) + " " + "pv"
				+ (int) (pieceInitialVelocity * 1) + " " + "pf"
				+ (int) (pieceDarkerFactor * 100) + " " + "pw"
				+ (int) (pieceWidth * 1) + " " + "ph" + (int) (pieceHeight * 1)
				+ " " + "tf" + (int) (traceDarkerFactor * 100));
	}

	public void update(Graphics g) {
		paint(g);
	}

	long totalPaintTime;

	public void paint(Graphics g) {
		if (offscreenImage == null)
			return;
		long time1 = System.currentTimeMillis();
		System.gc();
		long time2 = System.currentTimeMillis();
		offscreenGraphics.clearRect(0, 0, getWidth(), getHeight());
		TreeSet things2 = new TreeSet();
		while (!things.isEmpty()) {
			Thing thing = (Thing) things.first();
			things.remove(thing);
			thing.paint();
			if (thing.stateDead || thing.stateX < -border
					|| thing.stateY > getWidth() + border
					|| thing.stateY < -border
					|| thing.stateY > getHeight() + border) {
			} else {
				things2.add(thing);
			}
		}
		things = things2;
		g.drawImage(offscreenImage, 0, 0, this);
		long time3 = System.currentTimeMillis();
		totalPaintTime += time3 - time1;
		currentTime++;
		// System.out.println(
		// "("+(time2-time1)+") "+totalPaintTime+" / "+currentTime+" = "+totalPaintTime/currentTime
		// );
	}

}

Piece.java

import java.awt.Color;
import java.awt.Graphics2D;

class Piece extends Thing {
	Color traceColor;
	double velocityX, velocityY;

	Piece(Canvas canvas, Color traceColor, double originX, double originY,
			double velocity, double angle) {
		super(canvas);
		// System.out.println(
		// "sn,1011;color,"+color.getRGB()+";x,"+originX+",y"+originY+";v,"+velocity+";a,"+angle+";"
		// );
		color = Color.white;
		width = canvas.pieceWidth;
		height = canvas.pieceHeight;
		stateX = originX;
		stateY = originY;
		this.traceColor = traceColor;
		velocityX = velocity * Math.cos(angle);
		velocityY = velocity * Math.sin(angle);
	}

	void draw(Graphics2D g, int time) {

		Trace trace = new Trace(this);
		trace.color = traceColor;
		canvas.things.add(trace);

		velocityX *= canvas.damp;

		velocityY += canvas.gravity;
		velocityY *= canvas.damp;

		stateY += velocityY;
		stateX += velocityX;

		// System.out.println(
		// "sn,1012;x,"+stateX+",y,"+stateY+";vx,"+velocityX+";vy,"+velocityY+";"
		// );
		g.fillRect((int) stateX, (int) stateY, width, height);

		color = new Color((int) (color.getRed() * canvas.pieceDarkerFactor),
				(int) (color.getGreen() * canvas.pieceDarkerFactor),
				(int) (color.getBlue() * canvas.pieceDarkerFactor));
		if (color.getRed() + color.getGreen() + color.getBlue() < 10)
			stateDead = true;

	}

}

Skyrocket.java

import java.awt.Color;
import java.awt.Graphics2D;

class Skyrocket extends Thing {
	Skyrocket(Canvas canvas, Color color, int originX) {
		super(canvas);
		// System.out.println( "sn,1021;color,"+color.getRGB()+";x,"+originX+";"
		// );
		this.color = color;
		width = canvas.skyrocketWidth;
		height = canvas.skyrocketHeight;
		velocity = canvas.skyrocketVelocity;
		stateX = originX;
		stateY = canvas.getHeight();
	}

	void draw(Graphics2D g, int time) {
		// canvas.things.add( new Trace(this) );
		velocity += canvas.gravity;
		velocity *= canvas.damp;
		stateY += velocity;
		g.fillOval((int) stateX, (int) stateY, width, height);
	}

	void explode() {
		for (int i = 0; i < canvas.pieceNumber; i++) {
			double angleXy = canvas.random.nextDouble() * 2 * Math.PI;
			double angleZ = canvas.random.nextDouble() * 2 * Math.PI;
			double pieceVelocity = canvas.pieceInitialVelocity
					* Math.cos(angleZ);
			Piece piece = new Piece(canvas, color, stateX, stateY,
					pieceVelocity, angleXy);
			canvas.things.add(piece);
		}
		stateDead = true;
	}

}

Thing.java

import java.awt.Color;
import java.awt.Graphics2D;

abstract class Thing implements Comparable {
	Canvas canvas;
	int birthTime;
	Color color;
	int width, height;
	double stateX, stateY, velocity;
	boolean stateDead;

	Thing(Canvas canvas) {
		this.canvas = canvas;
		birthTime = canvas.currentTime;
	}

	void paint() {
		Graphics2D g = (Graphics2D) canvas.offscreenGraphics;
		int time = canvas.currentTime - birthTime;
		g.setColor(color);
		draw(g, time);
	}

	abstract void draw(Graphics2D g, int time);

	public int compareTo(Object o) {
		Thing thing = (Thing) o;
		if (birthTime > thing.birthTime)
			return -1;
		if (birthTime < thing.birthTime)
			return 1;
		if (equals(thing))
			return 0;
		return -1;
	}

}

Trace.java

import java.awt.Color;
import java.awt.Graphics2D;

class Trace extends Thing {
	double velocityX, velocityY;

	Trace(Thing thing) {
		super(thing.canvas);
		this.color = thing.color;
		this.width = thing.width;
		this.height = thing.height;
		stateX = thing.stateX;
		stateY = thing.stateY;
	}

	void draw(Graphics2D g, int time) {

		g.fillRect((int) stateX, (int) stateY, width, height);

		color = new Color((int) (color.getRed() * canvas.traceDarkerFactor),
				(int) (color.getGreen() * canvas.traceDarkerFactor),
				(int) (color.getBlue() * canvas.traceDarkerFactor));
		if (color.getRed() + color.getGreen() + color.getBlue() < 10)
			stateDead = true;

	}

}

程序还可以在html中查看

<html>

<head>
<title>焰火</title>
<META http-equiv=Content-Type content="text/html; charset=gbk">
</head>

<body>

<applet code="skyrocket.App" class=skyrocket.App" width="400" height="200">
    <param name="gravity" value="15">
	<param name="damp" value="95">
	<param name="skyrocketVelocity" value="19">
	<param name="skyrocketWidth" value="4">
	<param name="skyrocketHeight" value="8">
	<param name="pieceNumber" value="140">
	<param name="pieceInitialVelocity" value="4">
	<param name="pieceDarkerFactor" value="100">
	<param name="pieceWidth" value="2">
	<param name="pieceHeight" value="2">
	<param name="traceDarkerFactor" value="83">
</applet>
<br>
鼠标按下开始放焰火 松开鼠标键时焰火爆炸<br>
本程序运算量较大 请记得看完后关掉此页面 以免影响机器速度<br>
<br>
按键 Q/A : 增大/减小  重力加速度<br>
按键 W/S : 增大/减小  空气阻力<br>
按键 E/D : 增大/减小  爆竹的速度<br>
按键 R/F : 增大/减小  爆竹的宽度<br>
按键 T/G : 增大/减小  爆竹的高度<br>
按键 Y/H : 增大/减小  爆炸生成烟花的数目<br>
按键 U/J : 增大/减小  爆炸的力度<br>
按键 I/K : 增大/减小  烟花的亮度持续时间<br>
按键 O/L : 增大/减小  烟花的宽度<br>
按键 P/; : 增大/减小  烟花的高度<br>
按键 [/' : 增大/减小  烟花轨迹的长度<br>
<br>
</body>

</html>

<html>

<head>
<title>sliant</title>
<META http-equiv=Content-Type content="text/html; charset=gbk">
</head>

<body>
<applet code="skyrocket.App" class="skyrocket.App" width="400" height="400">
    <param name="gravity" value="100">
	<param name="damp" value="75">
	<param name="skyrocketVelocity" value="82">
	<param name="skyrocketWidth" value="4">
	<param name="skyrocketHeight" value="8">
	<param name="pieceNumber" value="200">
	<param name="pieceInitialVelocity" value="72">
	<param name="pieceDarkerFactor" value="90">
	<param name="pieceWidth" value="1">
	<param name="pieceHeight" value="2">
	<param name="traceDarkerFactor" value="70">
</applet>
<br>
鼠标按下开始放焰火 松开鼠标键时焰火爆炸<br>
本程序运算量较大 请记得看完后关掉此页面 以免影响机器速度<br>
<br>
按键 Q/A : 增大/减小  重力加速度<br>
按键 W/S : 增大/减小  空气阻力<br>
按键 E/D : 增大/减小  爆竹的速度<br>
按键 R/F : 增大/减小  爆竹的宽度<br>
按键 T/G : 增大/减小  爆竹的高度<br>
按键 Y/H : 增大/减小  爆炸生成烟花的数目<br>
按键 U/J : 增大/减小  爆炸的力度<br>
按键 I/K : 增大/减小  烟花的亮度持续时间<br>
按键 O/L : 增大/减小  烟花的宽度<br>
按键 P/; : 增大/减小  烟花的高度<br>
按键 [/' : 增大/减小  烟花轨迹的长度<br>
<br>
</body>

</html>