AS3 Create Flame Effect code

fireeffect.as file

The code is as follows

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Package effects { Import flash.display.* Import flash.events.Event; Import Flash.filters.DisplacementMapFilter; Import flash.geom.* /** * ... * @author Sliz */ public class Fireeffect extends Sprite { private Var Bmd:bitmapdata; private var target:sprite = Createsharp (400, 30,0); private var speed:number = Math.random () * 4 + 4; private var strengh:number = Math.random () * 60 + 60; private var size:number = Math.random () * 17 + 20; private var randomseed:number = Math.floor (Math.random () * 10); private var offset:point = new Point (); private Var V:point; private var w:number = 50; Public Function Fireeffect () { AddChild (target); AddTo (target); target.x = 0; TARGET.Y = 200; } Private Function Createsharp (width:number,height:number,angle:number): Sprite { var s:sprite = new Sprite (); S.graphics.beginfill (0, 0); S.graphics.drawrect (W, W, Width + 2 * w, W); S.graphics.beginfill (0XFFFFFF); S.graphics.drawrect (w, height, Width + 2 * w, W); var filltype:string = gradienttype.linear; var colors:array = [0x900000, 0x900000,0xff9900,0xfffd8a,0xffffff]; var alphas:array = [0,1,1,1, 1]; var ratios:array = [0x00,0xff/16,0xff*2/6,0xff*2/3, 0xFF]; var Matr:matrix = new Matrix (); Matr.creategradientbox (width, height, math.pi/2); var spreadmethod:string = Spreadmethod.pad; S.graphics.begingradientfill (Filltype, colors, alphas, ratios, Matr, Spreadmethod); S.graphics.drawrect (0, 0, width, height); return s; } Public Function AddTo (target:object): void { BMD = new BitmapData (target.width, target.height); v = new Point (Math.random () * (SPEED/4)-Speed/8,math.random () * (SPEED/4) + SPEED/4 * 3); Target.addeventlistener (event.enter_frame, update); } Private Function Update (e:event): void { Target.filters = [New Displacementmapfilter (BMD, New Point (), bitmapdatachannel.red,bitmapdatachannel.red, Strengh , "clamp")]; Offset=offset.add (v); Bmd.perlinnoise (SIZE/2, size, 3, Randomseed, False, True, 1, true, [offset, offset]); } } }

main.as file

The code is as follows

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Package { Import Flash.display.Sprite; Import effects. Fireeffect; Import flash.events.MouseEvent; Import Flash.net.navigateToURL; Import Flash.net.URLRequest; Import Flash.text.TextField; /** * ... * @author Sliz */ public class Main extends Sprite { Public Function Main (): void { AddChild (New Fireeffect ()); var Lable:textfield = new TextField (); Lable.textcolor = 0XFFFFFF; Lable.selectable = false; Lable.text = "Sliz"; Lable.addeventlistener (Mouseevent.click, function (): void {Navigatetourl (new URLRequest ("http://www.111cn.net/")); AddChild (lable); lable.x = 370; LABLE.Y = 380; } } }

In the Flash file

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Private function Update (e:event): void { Target.filters = [New Displacementmapfilter (BMD, New Point (), bitmapdatachannel.red , bitmapdatachannel.red, Strengh, "clamp")]; Offset=offset.add (v); Bmd.perlinnoise (SIZE/2, size, 3, Randomseed, False, True, 1, true, [offset, offset]); }