[AS]超真实火焰效果

[ 来源：相关论坛 | 作者：佚名 | 时间：2006-6-17 22:14:57 | 浏览：统计中... ]

主文件代码

代码拷贝框
import flash.display.*;import flash.filters.*;import flash.geom.*;import de.popforge.bitmap.Shape;Shape.setContainer( this.createEmptyMovieClip( 'shapes', 10000 ) );//-- get blue circle as a bitmapvar blueSpotClip: MovieClip = attachMovie( "blueSpot", "blueSpotClip", 0 );var clipBounds: Object = blueSpotClip.getBounds();var blueSpot: BitmapData = new BitmapData( clipBounds.xMax, clipBounds.yMax, true, 0 );blueSpot.draw( blueSpotClip, new Matrix() );blueSpotClip.removeMovieClip();//-- involved bitmapsvar source: BitmapData = new BitmapData( 256, 256, false, 0 );var output: BitmapData = new BitmapData( 256, 256, false, 0 );var buffer: BitmapData = new BitmapData( 256, 256, false, 0 );var bounds: Rectangle = new Rectangle( 0, 0, 256, 256 );var origin: Point = new Point();var matrix: Matrix = new Matrix();//-- creating a gradient with fire colorsimport de.popforge.bitmap.Gradient;var firePalette: Array = Gradient.fillArray( [ 0, 0xA20000, 0xFFF122, 0xFFFFFF, 0xF8FF1B, 0xC53C05, 0 ], [ 0, 50, 50, 100, 75, 25, 0 ], [ 0, 64, 132, 186, 220, 250, 255 ]);//-- Filter to let the flame growvar flame: ConvolutionFilter = new ConvolutionFilter( 3, 3, null, 2.7, -2 );attachBitmap( output, 0, false, false );var ms: Number = getTimer();var frame: Number = 0;onMouseMove = function(){ //-- create burning area var mouse: Point = new Point( _xmouse - clipBounds.xMax/2, _ymouse - clipBounds.yMax/2 ); source.copyPixels( blueSpot, new Rectangle( 0, 0, clipBounds.xMax, clipBounds.yMax ), mouse );}onEnterFrame = function(){ //-- create burning area var mouse: Point = new Point( _xmouse - clipBounds.xMax/2, _ymouse - clipBounds.yMax/2 ); source.copyPixels( blueSpot, new Rectangle( 0, 0, clipBounds.xMax, clipBounds.yMax ), mouse ); //-- the flames matrix with some randoms to expand the flame sidewards var flameMatrix: Array = [ 0, 0, 0, 0, 0.2, 0, 0, 1.6, 0 ]; flameMatrix[3] = Math.random() * .001; flameMatrix[5] = Math.random() * .001; flameMatrix[6] = .4 + Math.random() * .1; flameMatrix[8] = .4 + Math.random() * .1; flame.matrix = flameMatrix; //-- applying the filter 3 times to increase the flame speed //-- compute the affected region by "generateFilterRect", "getColorBoundsRect" var area: Rectangle = source.generateFilterRect( source.getColorBoundsRect( 0xFF, 0, false ), flame ); source.applyFilter( source, area, area.topLeft, flame ); area = source.generateFilterRect( area, flame ); source.applyFilter( source, area, area.topLeft, flame ); area = source.generateFilterRect( area, flame ); source.applyFilter( source, area, area.topLeft, flame ); //-- remap the the flame bitmap with fire colors output.paletteMap( source, area, area.topLeft, null, null, firePalette ); //-- fps if( getTimer() - 1000 > ms ) { ms = getTimer(); fps = frame; fpsDisplay.text = fps.toString(); frame = 0; } else { frame++; }}var mouseDown: Boolean = false;onMouseDown = function(){ mouseDown = true;}onMouseUp = function(){ onEnterFrame(); mouseDown = false; }createTextField( "fpsDisplay", 99, 0, 0, 60, 20 );fpsDisplay.textColor = 0xffffff;fpsDisplay.selectable = false;
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对应的AS代码：Gradient.as

代码拷贝框
import de.popforge.bitmap.Shape;import flash.display.BitmapData;import flash.geom.ColorTransform;import flash.geom.Matrix;class de.popforge.bitmap.Gradient{ public static function createXYGradient(): BitmapData { /* * get canvas */ var g: Shape = Shape.get(); if( g == null ) { return null; } var xyGradient: BitmapData = new BitmapData( 256, 256, false, 0 ); var matrix: Matrix = new Matrix(); /* * create y as blue colorvalues */ matrix.createGradientBox( 256, 256, Math.PI/2, 0, 0 ); g.beginGradientFill( 'linear', [ 0, 0x0000ff ], [ 100, 100 ], [ 0, 0xff ], matrix ); g.moveTo( 0, 0 ); g.lineTo( 256, 0 ); g.lineTo( 256, 256 ); g.lineTo( 0, 256 ); g.lineTo( 0, 0 ); g.endFill(); matrix.identity(); xyGradient.draw( g, matrix ); g.clear(); /* * create x as green colorvalues */ matrix.createGradientBox( 256, 256, 0, 0, 0 ); g.beginGradientFill( 'linear', [ 0, 0x00ff00 ], [ 100, 100 ], [ 0, 0xff ], matrix ); g.moveTo( 0, 0 ); g.lineTo( 256, 0 ); g.lineTo( 256, 256 ); g.lineTo( 0, 256 ); g.lineTo( 0, 0 ); g.endFill(); matrix.identity(); xyGradient.draw( g, matrix, null, 'add' ); g.removeMovieClip(); return xyGradient; } public static function createDisplacementMapFromMidMap( midmap: BitmapData ): BitmapData { var displace: BitmapData = createXYGradient(); if( displace == null ) { return null; } var colorTransform: ColorTransform = new ColorTransform(); var m: Matrix = new Matrix(); colorTransform.greenMultiplier = .5; colorTransform.blueMultiplier = .5; displace.draw( displace, m, colorTransform ); colorTransform.greenOffset = 128; colorTransform.blueOffset = 128; displace.draw( midmap, m, colorTransform, 'difference' ); return displace; } /* * returns an array with 32bit colorvalues * usefull to remap a bitma</p></div><p align="center"><b><font color="red">[1]</font> <a href="965_2.html">[2]</a> <a href="965_2.html">下一页</a></b></p> </div> </div> <div class="clear"></div>  <div class="artfunction"> <ul> <li><a href="#comment">网友评论</a></li> <li><a href="/user/favorite.asp?action=add&topic=[AS]超真实火焰效果">加入收藏</a></li> <li><a href="javascript:window.print()">打印本文</a></li>  </ul> </div> <div class="clear"></div>  <div class="artcontext"> <h4 class="previous"><strong>上一篇：</strong><a href="/article/166/218/964.html">Flash8设置及获取Cookies值</a></h4> <h4 class="next"><strong>下一篇：</strong><a href="/article/166/218/966.html">Flash 8动画设计标准教程</a></h4> </div> <div class="clear"></div>  <div class="artcorrel"> <h3>>> 相关文章</h3> <ul> <li><a href="/article/166/218/965.html" title="[AS]超真实火焰效果">[AS]超真实火焰效果</a></li> </ul> <ul> <li><a href="/go.html?u=http://www.baidu.com/s?wd=[AS]超真实火焰效果"><strong>[AS]超真实火焰效果</strong>在百度baidu上的更多资料</a></li> <li><a href="/go.html?u=http://www.google.cn/search?hl=zh-CN&q=[AS]超真实火焰效果&meta=&aq=f"><strong>[AS]超真实火焰效果</strong>在谷歌google上的更多资料</a></li> <li><a href="/go.html?u=http://search.cn.yahoo.com/search?ei=gbk&v=&fr=fp-tab-web-ycn&pid=ysearch&source=yahoo_yhp_0706_search_button&p=[AS]超真实火焰效果&meta=&aq=f"><strong>[AS]超真实火焰效果</strong>在雅虎yahoo上的更多资料</a></li> <li><a href="/go.html?u=http://www.soso.com/q?pid=s.idx&w=[AS]超真实火焰效果&meta=&aq=f"><strong>[AS]超真实火焰效果</strong>在搜搜soso上的更多资料</a></li> <li><a href="/go.html?u=http://cnweb.search.live.com/results.aspx?q=[AS]超真实火焰效果&meta=&aq=f"><strong>[AS]超真实火焰效果</strong>在MSN搜索上的更多资料</a></li> </ul> </div> </div> <div class="clear" style="margin-bottom:6px;"></div>  <a name="comment" id="comment"></a> <table width="100%" border="0" cellspacing="0" cellpadding="0" style=" font-family:Arial; 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