flash as 制作被风吹效果代码

风吹散效果。

详细代码：

package

 

{

 

import flash.display.Bitmap;

 

import flash.display.BitmapData;

 

import flash.display.MovieClip;

 

import flash.display.Sprite;

 

import flash.events.Event;

 

import flash.filters.BlurFilter;

 

import flash.geom.Point;

 

import flash.geom.Rectangle;

 

 

 

/**

 

* ...

 

* @author flashk

 

*/

 

public class Min extends Sprite

 

{

 

public var a_mc:MovieClip;

 

 

 

private var bd:BitmapData;

 

private var bds:BitmapData;

 

private var ps:Array;

 

 

 

public function Min() {

 

bd = new BitmapData(1420, 300, true);

 

bds = new BitmapData(a_mc.width, a_mc.height, true);

 

bds.draw(a_mc);

 

var bp:Bitmap = new Bitmap();

 

bp.bitmapData = bd;

 

this.addChild(bp);

 

start();

 

}

 

private function start():void {

 

ps = new Array();

 

for (var i:int = 1; i <= bds.width; i++) {

 

for (var j:int = 1; j <= bds.height; j++) {

 

ps.push(new Po(i, j, bds.getPixel32(i, j),bds.width));

 

}

 

}

 

this.addEventListener(Event.ENTER_FRAME, render);

 

this.removeChild(a_mc);

 

}

 

private function render(event:Event):void {

 

var po;

 

//bd.fillRect(new Rectangle(0, 0, bd.width, bd.height), 0);

 

bd.applyFilter(bd, new Rectangle(0, 0, bd.width, bd.height), new Point(0, 0), new BlurFilter(2, 2, 1));

 

bd.lock();

 

var len = ps.length;

 

for (var i:int = 0 ; i < len; i+=1) {

 

po = ps[i];

 

po.move();

 

bd.setPixel32(po.x, po.y+80, po.color);

 

}

 

bd.unlock();

 

}

 

}

 

 

 

}

 

class Po {

 

public var x:Number;

 

public var y:Number;

 

public var color:uint;

 

private var speed:Number;

 

private var r:Number = 0;

 

private var by:Number;

 

 

 

public function Po(x:Number, y:Number, color:uint,w:Number) {

 

this.x = x;

 

this.y = y;

 

this.color = color;

 

this.speed = Math.random() * 10 - (w - x) / 2;

 

//r = Math.random() * 50;

 

this.by = y;

 

}

 

public function move():void {

 

speed += 0.5;

 

if(speed>0){

 

this.x += speed;

 

r += 10;

 

this.y = this.by + Math.sin(r* Math.PI/180)*50;

 

}

 

}

 

}

源文件和swf下载s2demo.rar：

再来玩个加鼠标控制的，美女被风吹散...

package

 

{

 

import flash.display.Bitmap;

 

import flash.display.BitmapData;

 

import flash.display.MovieClip;

 

import flash.display.Sprite;

 

import flash.events.Event;

 

import flash.filters.BlurFilter;

 

import flash.filters.ColorMatrixFilter;

 

import flash.geom.ColorTransform;

 

import flash.geom.Point;

 

import flash.geom.Rectangle;

 

 

 

/**

 

* ...

 

* @author flashk

 

*/

 

public class Min extends Sprite

 

{

 

public var a_mc:MovieClip;

 

 

 

private var bd:BitmapData;

 

private var bds:BitmapData;

 

private var ps:Array;

 

private var ns:uint;

 

private var checks:Array;

 

private var noise:BitmapData;

 

private var randomSeed:Number;

 

private var image:BitmapData;

 

private var rect:Rectangle;

 

private var cTra:ColorTransform;

 

private var vectorList:Array;

 

private var num:uint = 10000;

 

 

 

public function Min() {

 

 

 

noise = new BitmapData(a_mc.width, a_mc.height, false, 0x000000);

 

randomSeed = Math.floor(Math.random() * 0xFFFF);

 

noise.perlinNoise(a_mc.width, a_mc.height, 4, randomSeed, false, false, 1 | 2 | 0 | 0 );

 

image = new BitmapData(465, 465, true, 0);

 

this.addChild(new Bitmap(image));

 

rect = new Rectangle( 0, 0, 465, 465 )

 

cTra = new ColorTransform(1, 1, 1, 0.9, 0, 0, 0, 0)

 

 

 

bd = new BitmapData(600, 450, true);

 

bds = new BitmapData(a_mc.width, a_mc.height, true,0x00FFFFFF);

 

bds.draw(a_mc);

 

var bp:Bitmap = new Bitmap();

 

bp.bitmapData = bd;

 

ps = new Array();

 

start(1);

 

this.removeChild(a_mc);

 

}

 

private function start(s:uint):void {

 

ns = s;

 

vectorList = [];

 

for (var i:int = s; i <= bds.width; i++) {

 

for (var j:int = 1; j <= bds.height; j++) {

 

vectorList.push(new Po(i, j, bds.getPixel32(i, j),bds.width,this));

 

}

 

}

 

this.addEventListener(Event.ENTER_FRAME, render);

 

}

 

private function render(event:Event):void {

 

image.colorTransform( rect, cTra );

 

image.lock();

 

var len:uint = vectorList.length;

 

for (var i:uint = 0; i < len; i++) {

 

var body:Po = vectorList[i];

 

body.speed += 0.4;

 

if(body.speed>0){

 

var col:Number = noise.getPixel(body.px, body.py);

 

body.ax += ((col >> 16 & 0xFF) - 128)/1000;

 

body.ay += ((col >> 8 & 0xFF) -128)/1000;

 

 

 

body.vx += body.ax;

 

body.vy += body.ay;

 

body.px += body.vx;

 

body.py += body.vy;

 

 

 

body.ax *= .975;

 

body.ay *= .975;

 

body.vx *= .92;

 

body.vy *= .92;

 

}

 

if (body.px < 0) {

 

vectorList.splice(i, 1);

 

len -= 1;

 

}

 

image.setPixel32( body.px, body.py+100, body.color );

 

}

 

image.unlock();

 

}

 

}

 

}

 

class Po {

 

public var x:Number;

 

public var y:Number;

 

public var color:uint;

 

public var speed:Number;

 

private var r:Number = 0;

 

private var by:Number;

 

public var vx:Number = 0;

 

public var vy:Number = 0;

 

public var ax:Number = 0;

 

public var ay:Number = 0;

 

public var px:Number;

 

public var py:Number;

 

 

 

public function Po(x:Number, y:Number, color:uint,w:Number,eventLis:Object) {

 

this.x = x;

 

this.y = y;

 

this.px = x;

 

this.py = y;

 

this.color = color;

 

this.speed = Math.random() * 15 - (w - x) / 3 -20;

 

this.by = y;

 

}

 

}