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1. • CommentAuthorJackLee
   • CommentTimeSep 2nd 2010

    
   like some tail of missile or comet, could anybody give some hints for that.
   I have to consider the gravity ,path,color fade, ......any ideas
2. • CommentAuthorJackLee
   • CommentTimeSep 2nd 2010 edited

    
   I really need help
   
   import flash.geom.Point;
import org.flintparticles.common.actions.*;
import org.flintparticles.common.counters.*;
import org.flintparticles.common.displayObjects.Dot;
import org.flintparticles.common.displayObjects.Line;
import org.flintparticles.common.initializers.*;
import org.flintparticles.twoD.actions.*;
import org.flintparticles.twoD.activities.FollowMouse;
import org.flintparticles.twoD.emitters.Emitter2D;
import org.flintparticles.twoD.initializers.*;
import org.flintparticles.twoD.renderers.*;
import org.flintparticles.twoD.zones.*;

var txt:TextField = new TextField();
txt.text = "Move the mouse over this box.";
txt.autoSize = "left";
txt.textColor = 0xFFFFFF;
addChild( txt );

var emitter:Emitter2D = new Emitter2D();
emitter.counter = new Steady( 150 );

emitter.addInitializer( new SharedImage( new Dot(5)) );
emitter.addInitializer( new ColorInit( 0xFFFFCC00, 0xFF660000 ) );
emitter.addInitializer( new Velocity( new PointZone( new Point( 0, 0 ) ) ) );
emitter.addInitializer( new Lifetime( 0.2, 1) );

emitter.addAction( new Age() );
emitter.addAction( new Jet(10, 10, new PointZone(new Point(0, 0))) );
//emitter.addAction( new GravityWell(25, 100, 100) );

var renderer:BitmapRenderer = new BitmapRenderer( new Rectangle( 0, 0, 400, 400 ) );
renderer.addFilter( new BlurFilter( 10, 10, 8 ) );
renderer.addFilter( new ColorMatrixFilter( [ 1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0.95,0 ] ) );
renderer.addEmitter( emitter );
addChild( renderer );

emitter.addActivity( new FollowMouse( renderer ) );

emitter.start( );
   
   I have no idea how this happened , how to use the jet
3. • CommentAuthorRichard
   • CommentTimeSep 3rd 2010

    
   Hi
   
   The Jet effect isn't for making the effect you're after, it's for applying an acceleration to particles in a particular area of the screen only, as if they were caught in a jet of air.
   
   Is this the sort of thing you're after?
   
   import flash.geom.Point;
import org.flintparticles.common.actions.*;
import org.flintparticles.common.counters.*;
import org.flintparticles.common.initializers.*;
import org.flintparticles.twoD.actions.*;
import org.flintparticles.twoD.activities.FollowMouse;
import org.flintparticles.twoD.emitters.Emitter2D;
import org.flintparticles.twoD.initializers.*;
import org.flintparticles.twoD.renderers.*;
import org.flintparticles.twoD.zones.*;

var emitter:Emitter2D = new Emitter2D();
emitter.counter = new Steady( 1000 );

emitter.addInitializer( new SharedImage( new Dot(5)) );
emitter.addInitializer( new ColorInit( 0xFFFFCC00, 0xFF660000 ) );
emitter.addInitializer( new Position( new DiscZone( new Point( 0, 0 ), 5 ) ) );
emitter.addInitializer( new Lifetime( 0.2, 0.5) );

emitter.addAction( new Age() );
emitter.addAction( new Move() );

var renderer:BitmapRenderer = new PixelRenderer( new Rectangle( 0, 0, 400, 400 ) );
renderer.addFilter( new BlurFilter( 4, 4, 2 ), true );
renderer.addFilter( new ColorMatrixFilter( [ 1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0.95,0 ] ), true );
renderer.addEmitter( emitter );
addChild( renderer );

emitter.addActivity( new FollowMouse( renderer ) );

emitter.start( );
4. • CommentAuthorJackLee
   • CommentTimeSep 7th 2010

    
   Thanks Richard, today morning I saw your answer, I did tons of tests, I fund out those zone, action stuff are all for calculating, not to generate the effect as its name stands for.But I finally got something I want:
   
   /*
   * FLINT PARTICLE SYSTEM
   * .....................
   *
   * Author: Richard Lord
   * Copyright (c) Richard Lord 2008-2010
   * http://flintparticles.org/
   *
   * Licence Agreement
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
   
   package
   {
   import flash.display.Sprite;
   import flash.filters.BlurFilter;
   import flash.filters.ColorMatrixFilter;
   import flash.geom.Point;
   import flash.geom.Rectangle;
   import org.flintparticles.common.actions.*;
   import org.flintparticles.common.actions.Age;
   import org.flintparticles.common.counters.*;
   import org.flintparticles.common.initializers.*;
   import org.flintparticles.common.initializers.Lifetime;
   import org.flintparticles.common.initializers.SharedImage;
   import org.flintparticles.twoD.actions.*;
   import org.flintparticles.twoD.actions.Jet;
   import org.flintparticles.twoD.actions.Move;
   import org.flintparticles.twoD.activities.FollowMouse;
   import org.flintparticles.twoD.emitters.Emitter2D;
   import org.flintparticles.twoD.initializers.*;
   import org.flintparticles.twoD.initializers.Position;
   import org.flintparticles.twoD.initializers.Velocity;
   import org.flintparticles.twoD.renderers.*;
   import org.flintparticles.twoD.renderers.BitmapRenderer;
   import org.flintparticles.twoD.zones.*;
   import org.flintparticles.twoD.zones.RectangleZone;
   
   
   /**
   * This example creates fire and smoke using two emitters.
   *
   * <p>This is the document class for the Flex project.</p>
   */
   
   public class Main extends Sprite
   {
   [Embed(source='assets/fireblob.swf', symbol='FireBlob')]
   public var FireBlob:Class;
   private var jetZone:RectangleZone;
   
   public function Main()
   {
   var emitter:Emitter2D = new Emitter2D();
   
   emitter.counter = new Steady( 100 );
   
   emitter.addInitializer( new Lifetime( 1, 3 ) );
   emitter.addInitializer( new Velocity( new DiscSectorZone( new Point( 100, 0 ), 45, 10, -Math.PI, 0 ) ) );
   //emitter.addInitializer( new Position( new DiscZone( new Point( 0, 0 ), 3 ) ) );
   emitter.addInitializer( new SharedImage( new FireBlob() ) );
   
   emitter.addAction( new Age( ) );
   emitter.addAction( new Move( ) );
   jetZone = new RectangleZone(125, 75, 0, 0),
   emitter.addAction(new Jet(1, 0, jetZone));
   //addAction( new LinearDrag( 1 ) );
   emitter.addAction( new Accelerate( 0, 40 ) );
   emitter.addAction( new ColorChange( 0xFFFFCC00, 0xff660000 ) );
   emitter.addAction( new ScaleImage( 1, 3 ) );
   emitter.addAction( new RotateToDirection() );
   
   emitter.addAction(new DeathZone(new RectangleZone(-20, -20, 800, 600), true));
   
   var renderer:BitmapRenderer = new BitmapRenderer( new Rectangle( 0, 0, 800, 600 ) );
   renderer.addFilter( new BlurFilter( 10, 10, 8 ) );
   renderer.addFilter( new ColorMatrixFilter( [ 1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0.95,0 ] ) );
   renderer.addEmitter( emitter );
   addChild( renderer );
   
   emitter.addActivity( new FollowMouse( renderer ) );
   emitter.start( );
   }
   }
   }
   actually ,I just make a few change to the your fire and smoke example, for now its still raw, need to improve
   
   anyway,Thank you for your generous share .