Catherine Wheel
This example uses an activity to rotate the emitter while it spits out particles.
package { import org.flintparticles.twoD.emitters.Emitter2D; import org.flintparticles.twoD.renderers.BitmapRenderer; import flash.display.Sprite; import flash.filters.BlurFilter; import flash.filters.ColorMatrixFilter; import flash.geom.Rectangle; [SWF(width='500', height='500', frameRate='60', backgroundColor='#000000')] public class Main extends Sprite { private var emitter:Emitter2D; public function Main() { emitter = new CatherineWheel(); var renderer:BitmapRenderer = new BitmapRenderer( new Rectangle( 0, 0, 500, 500 ) ); renderer.addFilter( new BlurFilter( 2, 2, 1 ) ); renderer.addFilter( new ColorMatrixFilter( [ 1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0.97,0 ] ) ); renderer.addEmitter( emitter ); addChild( renderer ); emitter.x = 250; emitter.y = 250; emitter.start( ); } } }
package { import org.flintparticles.common.actions.Age; import org.flintparticles.common.actions.Fade; import org.flintparticles.common.counters.Steady; import org.flintparticles.common.displayObjects.Line; import org.flintparticles.common.easing.Quadratic; import org.flintparticles.common.initializers.ColorInit; import org.flintparticles.common.initializers.Lifetime; import org.flintparticles.common.initializers.SharedImage; import org.flintparticles.twoD.actions.Accelerate; import org.flintparticles.twoD.actions.LinearDrag; import org.flintparticles.twoD.actions.Move; import org.flintparticles.twoD.activities.RotateEmitter; import org.flintparticles.twoD.emitters.Emitter2D; import org.flintparticles.twoD.initializers.Velocity; import org.flintparticles.twoD.zones.DiscSectorZone; import flash.geom.Point; public class CatherineWheel extends Emitter2D { public function CatherineWheel() { counter = new Steady( 200 ); addActivity( new RotateEmitter( -7 ) ); addInitializer( new SharedImage( new Line( 3 ) ) ); addInitializer( new ColorInit( 0xFFFFFF00, 0xFFFF6600 ) ); addInitializer( new Velocity( new DiscSectorZone( new Point( 0, 0 ), 250, 170, 0, 0.2 ) ) ); addInitializer( new Lifetime( 1.3 ) ); addAction( new Age( Quadratic.easeIn ) ); addAction( new Move() ); addAction( new Fade() ); addAction( new Accelerate( 0, 50 ) ); addAction( new LinearDrag( 0.5 ) ); } } }
import org.flintparticles.common.actions.Age; import org.flintparticles.common.actions.Fade; import org.flintparticles.common.counters.Steady; import org.flintparticles.common.displayObjects.Line; import org.flintparticles.common.easing.Quadratic; import org.flintparticles.common.initializers.ColorInit; import org.flintparticles.common.initializers.Lifetime; import org.flintparticles.common.initializers.SharedImage; import org.flintparticles.twoD.actions.Accelerate; import org.flintparticles.twoD.actions.LinearDrag; import org.flintparticles.twoD.actions.Move; import org.flintparticles.twoD.activities.RotateEmitter; import org.flintparticles.twoD.emitters.Emitter2D; import org.flintparticles.twoD.initializers.Velocity; import org.flintparticles.twoD.renderers.BitmapRenderer; import org.flintparticles.twoD.zones.DiscSectorZone; var emitter:Emitter2D = new Emitter2D(); emitter.counter = new Steady( 200 ); emitter.addActivity( new RotateEmitter( -7 ) ); emitter.addInitializer( new SharedImage( new Line( 3 ) ) ); emitter.addInitializer( new ColorInit( 0xFFFFFF00, 0xFFFF6600 ) ); emitter.addInitializer( new Velocity( new DiscSectorZone( new Point( 0, 0 ), 250, 170, 0, 0.2 ) ) ); emitter.addInitializer( new Lifetime( 1.3 ) ); emitter.addAction( new Age( Quadratic.easeIn ) ); emitter.addAction( new Move() ); emitter.addAction( new Fade() ); emitter.addAction( new Accelerate( 0, 50 ) ); emitter.addAction( new LinearDrag( 0.5 ) ); var renderer:BitmapRenderer = new BitmapRenderer( new Rectangle( 0, 0, 500, 500 ) ); renderer.addFilter( new BlurFilter( 2, 2, 1 ) ); renderer.addFilter( new ColorMatrixFilter( [ 1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0.97,0 ] ) ); renderer.addEmitter( emitter ); addChild( renderer ); emitter.x = 250; emitter.y = 250; emitter.start( );
<?xml version="1.0" encoding="utf-8"?> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:s="library://ns.adobe.com/flex/spark" xmlns:f="http://flintparticles.org/2009/flint2d" xmlns:filters="flash.filters.*" width="500" height="500" backgroundColor="#000000"> <fx:Script> <![CDATA[ import org.flintparticles.common.easing.Quadratic; ]]> </fx:Script> <f:BitmapRenderer id="renderer" width="500" height="500"> <f:preFilters> <filters:BlurFilter blurX="2" blurY="2" quality="1"/> <filters:ColorMatrixFilter matrix="{[ 1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,0.97,0 ]}"/> </f:preFilters> <f:emitters> <f:Emitter id="emitter" autoStart="true" x="250" y="250"> <f:counter> <f:Steady rate="200"/> </f:counter> <f:initializers> <f:ColorInit minColor="0xFFFFFF00" maxColor="0xFFFF6600"/> <f:Velocity> <f:DiscSectorZone centerX="0" centerY="0" innerRadius="170" outerRadius="250" minAngle="0" maxAngle="0.2"/> </f:Velocity> <f:SharedImage> <f:Line length="3"/> </f:SharedImage> <f:Lifetime lifetime="1.3"/> </f:initializers> <f:actions> <f:Move/> <f:Age easing="{Quadratic.easeIn}"/> <f:Fade/> <f:Accelerate x="0" y="50"/> <f:LinearDrag drag="0.5"/> </f:actions> <f:activities> <f:RotateEmitter angularVelocity="-7"/> </f:activities> </f:Emitter> </f:emitters> </f:BitmapRenderer> </s:Application>