烟花java程序代码,烟花的程序代码

烟花的java程序

// Decompiled by DJ v2.9.9.60 Copyright 2000 Atanas Neshkov Date: 2003-1-8 9:49:09

// Home Page : - Check often for new version!

// Decompiler options: packimports(3)

// Source File Name: jhanabi.java

import java.applet.Applet;

import java.applet.AudioClip;

import java.awt.*;

import java.awt.image.MemoryImageSource;

import java.util.Random;

public class jhanabi extends Applet

implements Runnable

{

public jhanabi()

{

m_mouseX = 0;

m_mouseY = 0;

m_sleepTime = 5;

isError = false;

isInitialized = false;

rand = new Random();

bits = 10000;

bit_px = new double[bits];

bit_py = new double[bits];

bit_vx = new double[bits];

bit_vy = new double[bits];

bit_sx = new int[bits];

bit_sy = new int[bits];

bit_l = new int[bits];

bit_f = new int[bits];

bit_p = new int[bits];

bit_c = new int[bits];

ru = 50;

rv = 50;

}

public void init()

{

String s = getParameter("para_bits");

if(s != null)

bits = Integer.parseInt(s);

s = getParameter("para_max");

if(s != null)

bit_max = Integer.parseInt(s);

s = getParameter("para_blendx");

if(s != null)

ru = Integer.parseInt(s);

s = getParameter("para_blendy");

if(s != null)

rv = Integer.parseInt(s);

s = getParameter("para_sound");

if(s != null)

bit_sound = Integer.parseInt(s);

m_nAppX = size().width;

m_nAppY = size().height;

m_centerX = m_nAppX / 2;

m_centerY = m_nAppY / 2;

m_mouseX = m_centerX;

m_mouseY = m_centerY;

resize(m_nAppX, m_nAppY);

pixls = m_nAppX * m_nAppY;

pixls2 = pixls - m_nAppX * 2;

pix0 = new int[pixls];

offImage = new MemoryImageSource(m_nAppX, m_nAppY, pix0, 0, m_nAppX);

offImage.setAnimated(true);

dbImg = createImage(offImage);

for(int i = 0; i pixls; i++)

pix0[i] = 0xff000000;

sound1 = getAudioClip(getDocumentBase(), "firework.au");

sound2 = getAudioClip(getDocumentBase(), "syu.au");

for(int j = 0; j bits; j++)

bit_f[j] = 0;

isInitialized = true;

start();

}

public void run()

{

while(!isInitialized)

try

{

Thread.sleep(200L);

}

catch(InterruptedException interruptedexception) { }

do

{

for(int j = 0; j pixls2; j++)

{

int k = pix0[j];

int l = pix0[j + 1];

int i1 = pix0[j + m_nAppX];

int j1 = pix0[j + m_nAppX + 1];

int i = (k 0xff0000) 16;

int k1 = ((((l 0xff0000) 16) - i) * ru 8) + i;

i = (k 0xff00) 8;

int l1 = ((((l 0xff00) 8) - i) * ru 8) + i;

i = k 0xff;

int i2 = (((l 0xff) - i) * ru 8) + i;

i = (i1 0xff0000) 16;

int j2 = ((((j1 0xff0000) 16) - i) * ru 8) + i;

i = (i1 0xff00) 8;

int k2 = ((((j1 0xff00) 8) - i) * ru 8) + i;

i = i1 0xff;

int l2 = (((j1 0xff) - i) * ru 8) + i;

int i3 = ((j2 - k1) * rv 8) + k1;

int j3 = ((k2 - l1) * rv 8) + l1;

int k3 = ((l2 - i2) * rv 8) + i2;

pix0[j] = i3 16 | j3 8 | k3 | 0xff000000;

}

rend();

offImage.newPixels(0, 0, m_nAppX, m_nAppY);

try

{

Thread.sleep(m_sleepTime);

}

catch(InterruptedException interruptedexception1) { }

} while(true);

}

public void update(Graphics g)

{

paint(g);

}

public void paint(Graphics g)

{

g.drawImage(dbImg, 0, 0, this);

}

public void start()

{

if(isError)

return;

isRunning = true;

if(runner == null)

{

runner = new Thread(this);

runner.start();

}

}

public void stop()

{

if(runner != null)

{

runner.stop();

runner = null;

}

}

public boolean mouseMove(Event event, int i, int j)

{

m_mouseX = i;

m_mouseY = j;

return true;

}

public boolean mouseDown(Event event, int i, int j)

{

m_mouseX = i;

m_mouseY = j;

int k = (int)(rand.nextDouble() * 256D);

int l = (int)(rand.nextDouble() * 256D);

int i1 = (int)(rand.nextDouble() * 256D);

int j1 = k 16 | l 8 | i1 | 0xff000000;

int k1 = 0;

for(int l1 = 0; l1 bits; l1++)

{

if(bit_f[l1] != 0)

continue;

bit_px[l1] = m_mouseX;

bit_py[l1] = m_mouseY;

double d = rand.nextDouble() * 6.2800000000000002D;

double d1 = rand.nextDouble();

bit_vx[l1] = Math.sin(d) * d1;

bit_vy[l1] = Math.cos(d) * d1;

bit_l[l1] = (int)(rand.nextDouble() * 100D) + 100;

bit_p[l1] = (int)(rand.nextDouble() * 3D);

bit_c[l1] = j1;

bit_sx[l1] = m_mouseX;

bit_sy[l1] = m_nAppY - 5;

bit_f[l1] = 2;

if(++k1 == bit_max)

break;

}

if(bit_sound 1)

sound2.play();

return true;

}

public boolean mouseExit(Event event, int i, int j)

{

m_mouseX = i;

m_mouseY = j;

return true;

}

void rend()

{

boolean flag = false;

boolean flag1 = false;

boolean flag2 = false;

for(int k = 0; k bits; k++)

switch(bit_f[k])

{

default:

break;

case 1: // '\001'

bit_vy[k] += rand.nextDouble() / 50D;

bit_px[k] += bit_vx[k];

bit_py[k] += bit_vy[k];

bit_l[k]--;

if(bit_l[k] == 0 || bit_px[k] 0.0D || bit_py[k] 0.0D || bit_px[k] (double)m_nAppX || bit_py[k] (double)(m_nAppY - 3))

{

bit_c[k] = 0xff000000;

bit_f[k] = 0;

} else

if(bit_p[k] == 0)

{

if((int)(rand.nextDouble() * 2D) == 0)

bit_set((int)bit_px[k], (int)bit_py[k], -1);

} else

{

bit_set((int)bit_px[k], (int)bit_py[k], bit_c[k]);

}

break;

case 2: // '\002'

bit_sy[k] -= 5;

if((double)bit_sy[k] = bit_py[k])

{

bit_f[k] = 1;

flag2 = true;

}

if((int)(rand.nextDouble() * 20D) == 0)

{

int i = (int)(rand.nextDouble() * 2D);

int j = (int)(rand.nextDouble() * 5D);

bit_set(bit_sx[k] + i, bit_sy[k] + j, -1);

}

break;

}

if(flag2 bit_sound 0)

sound1.play();

}

void bit_set(int i, int j, int k)

{

int l = i + j * m_nAppX;

pix0[l] = k;

}

private int m_nAppX;

private int m_nAppY;

private int m_centerX;

private int m_centerY;

private int m_mouseX;

private int m_mouseY;

private int m_sleepTime;

private boolean isError;

private boolean m_isPaintFinished;

boolean isRunning;

boolean isInitialized;

Thread runner;

int pix0[];

MemoryImageSource offImage;

Image dbImg;

int pixls;

int pixls2;

Random rand;

int bits;

double bit_px[];

double bit_py[];

double bit_vx[];

double bit_vy[];

int bit_sx[];

int bit_sy[];

int bit_l[];

int bit_f[];

int bit_p[];

int bit_c[];

int bit_max;

int bit_sound;

int ru;

int rv;

AudioClip sound1;

AudioClip sound2;

}

相关问答

Q1: java烟花程序看不懂，求解释！

import java.awt.*;

import java.applet.*;

import java.awt.event.*;

import javax.swing.*;

public class Fireworks extends Applet implements MouseListener, Runnable {

int x, y;//记录鼠标点击的坐标

int top, point;//好像没用到

public void init() {

x = 0;

y = 0;

setBackground(Color.black);// 设置背景色为黑色

addMouseListener(this);//添加鼠标监听

}

public void paint(Graphics g) {

}

public static void main(String args[]) {

Fireworks applet = new Fireworks();

JFrame frame = new JFrame("TextAreaNew");

frame.addWindowListener(new WindowAdapter() {

public void windowClosing(WindowEvent e) {//右上角的叉

System.exit(0);

}

});

frame.add(applet, BorderLayout.CENTER);

frame.setSize(800, 400);//程序的框框大小

applet.init();

applet.start();

frame.setVisible(true);//

}

public void run() {

// 变量初始化

Graphics g1;

g1 = getGraphics();//这是画笔，得到一个画笔

int y_move, y_click, x_click;

int v;//用于计算等待的时间

x_click = x;

y_click = y;//把点击的坐标保存下来，因为其它线程会去改这两个坐标。

y_move = 400;//用来计算变动的那个点，现在是屏幕的最大高度

v = 3;

int r, g, b;

while (y_move  y_click)//如果点击的位置小于最大高度。

{

g1.setColor(Color.black);//画笔设成黑色

g1.fillOval(x_click, y_move, 5, 5);//画圆，圆点在点击的X轴，程序界面的最高点，长为5，宽为5

y_move -= 5;//最高点-5

r = (((int) Math.round(Math.random() * 4321)) % 200) + 55;

g = (((int) Math.round(Math.random() * 4321)) % 200) + 55;

b = (((int) Math.round(Math.random() * 4321)) % 200) + 55;//rgb是光的三原色，这个就是烟花产生的颜色，这里定义成随机的，但在一个范围里

g1.setColor(new Color(r, g, b));//把画笔改成那个颜色

g1.fillOval(x_click, y_move, 5, 5);//画一个这样的圆

for (int j = 0; j = 10; j++) {

if (r  55)

r -= 20;

if (g  55)

g -= 20;

if (b  55)

b -= 20;

g1.setColor(new Color(r, g, b));

g1.fillOval(x_click, y_move + j * 5, 5, 5);//这一段都是改变颜色，然后画圆的

}

g1.setColor(Color.black);

g1.fillOval(x_click, y_move + 5 * 10, 5, 5);//把上一次画的彩色圆，用黑色画一遍，就能让它消失在背景里

try {

Thread.currentThread().sleep(v++);//让程序等一下，让你看到效果，不然画完的东西一下就不见了，你看不清。

} catch (InterruptedException e) {

}

}//上面这段代码是烟花的升上去的那一串东西的效果

for (int j = 12; j = 0; j--) {

g1.setColor(Color.black);

g1.fillOval(x_click, y_move + (j * 5), 5, 5);

try {

Thread.currentThread().sleep((v++) / 3);

} catch (InterruptedException e) {

}

}//让最后的那串东西的点消失

y_move = 400;

g1.setColor(Color.black);

while (y_move  y_click) {

g1.fillOval(x_click - 2, y_move, 9, 5);

y_move -= 5;

}//这段不太清楚是干什么的，我把它去掉，看不出效果的变化

v = 15;

for (int i = 0; i = 25; i++) {

r = (((int) Math.round(Math.random() * 4321)) % 200) + 55;

g = (((int) Math.round(Math.random() * 4321)) % 200) + 55;

b = (((int) Math.round(Math.random() * 4321)) % 200) + 55;

g1.setColor(new Color(r, g, b));

g1.drawOval(x_click - 3 * i, y_click - 3 * i, 6 * i, 6 * i);

if (i  23) {

g1.drawOval(x_click - 3 * (i + 1), y_click - 3 * (i + 1),

6 * (i + 1), 6 * (i + 1));

g1.drawOval(x_click - 3 * (i + 2), y_click - 3 * (i + 2),

6 * (i + 2), 6 * (i + 2));

}//上面这段是画爆炸的效果

try {

Thread.currentThread().sleep(v++);//停一下，看效果

} catch (InterruptedException e) {

}

g1.setColor(Color.black);

g1.drawOval(x_click - 3 * i, y_click - 3 * i, 6 * i, 6 * i);//然后画黑圈，相当于让彩圈消失。

}

}

public void mousePressed(MouseEvent e) {//点击从这里开始~~~~~~~~~~~~~~

x = e.getX();

y = e.getY();//得到鼠标点击的坐标

Thread one = new Thread(this);//新建一个线程

one.start();//启动这个线程，到上面的run方法

one = null;//把这个线程置为空，让它执行完以后就释放

}

如果你想一下自己写要怎样写这个程序，就很容易理解这个程序了。

一直从下向上画圆，然后把下面的圆擦掉，就能得到一个向上升的烟花效果，

爆炸效果就是先画小圆再画大圆，然后擦掉小圆，再擦掉大圆。

Q2: 在编写那个烟花的程序（java），以下是对烟花进行绘制的代码，我是新手看不懂，请帮忙解释下呢··

就是找了三个随机数, r,g,b作为颜色的初始色彩,在三个数字上偏移, 得到相近的颜色.. 并画出来..