forked from: flash on 2010-3-19
Stardust Particle Engine
Homepage
http://code.google.com/p/stardust-particle-engine/
PDF Manual
http://stardust-particle-engine.googlecode.com/svn/trunk/manual/Stardust%20Particle%20Engine%20Manual.pdf
/**
* Copyright bradsedito ( http://wonderfl.net/user/bradsedito )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/k7rK
*/
// forked from hacker_yt55cejv's flash on 2010-3-19
/**
* Stardust Particle Engine
*
* Homepage
* http://code.google.com/p/stardust-particle-engine/
*
* PDF Manual
* http://stardust-particle-engine.googlecode.com/svn/trunk/manual/Stardust%20Particle%20Engine%20Manual.pdf
*/
package {
import com.bit101.components.PushButton;
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.Event;
import flash.filters.GlowFilter;
import flash.geom.Matrix;
import flash.geom.Point;
import idv.cjcat.stardust.common.clocks.SteadyClock;
import idv.cjcat.stardust.twoD.renderers.DisplayObjectRenderer;
[SWF(backgroundColor="#000000", frameRate=60)]
public class Main extends Sprite {
public static const RATE:Number = 1;
private var container:Sprite;
private var emitter:FireflyEmitter;
private var canvasBMP:Bitmap;
private var canvasBMPD:BitmapData;
private var glow:GlowFilter = new GlowFilter(0xFFCC00, 1, 8, 8, 5, 2, false, true);
public function Main():void {
//Stardust
//------------------------------------------------------------------------------------------------
//container
container = new Sprite();
addChild(container);
//emitter & renderer
emitter = new FireflyEmitter(new SteadyClock(RATE));
var renderer:DisplayObjectRenderer = new DisplayObjectRenderer(container);
renderer.addEmitter(emitter);
//------------------------------------------------------------------------------------------------
//canvas BMP
//------------------------------------------------------------------------------------------------
canvasBMPD = new BitmapData(233, 233, false, 0);
canvasBMP = new Bitmap(canvasBMPD);
canvasBMP.scaleX = canvasBMP.scaleY = 2;
addChildAt(canvasBMP, 0);
//------------------------------------------------------------------------------------------------
//UI
//------------------------------------------------------------------------------------------------
//speed buttons
new PushButton(this, 10, 10, "0.25X", changeSpeed).setSize(60, 20);
new PushButton(this, 10, 30, "0.5X", changeSpeed).setSize(60, 20);
new PushButton(this, 10, 50, "1X", changeSpeed).setSize(60, 20);
new PushButton(this, 10, 70, "2X", changeSpeed).setSize(60, 20);
new PushButton(this, 10, 90, "4X", changeSpeed).setSize(60, 20);
addEventListener(Event.ENTER_FRAME, mainLoop);
//------------------------------------------------------------------------------------------------
}
private var point:Point = new Point(0, 0);
private var matrix:Matrix = new Matrix(0.5, 0, 0, 0.5);
private function mainLoop(e:Event):void {
container.filters = [glow];
canvasBMPD.lock();
canvasBMPD.fillRect(canvasBMPD.rect, 0);
canvasBMPD.draw(container, matrix);
canvasBMPD.unlock();
container.filters = [];
emitter.step();
}
private function changeSpeed(e:Event):void {
var btn:PushButton = e.target as PushButton;
switch (btn.label) {
case "0.25X":
emitter.stepTimeInterval = 0.25;
break;
case "0.5X":
emitter.stepTimeInterval = 0.5;
break;
case "1X":
emitter.stepTimeInterval = 1;
break;
case "2X":
emitter.stepTimeInterval = 2;
break;
case "4X":
emitter.stepTimeInterval = 4;
break;
}
}
}
}
//------------------------------------------------------------------------------------------------
import flash.display.Shape;
import idv.cjcat.stardust.common.actions.Age;
import idv.cjcat.stardust.common.actions.AlphaCurve;
import idv.cjcat.stardust.common.actions.DeathLife;
import idv.cjcat.stardust.common.clocks.Clock;
import idv.cjcat.stardust.common.initializers.Life;
import idv.cjcat.stardust.common.initializers.Scale;
import idv.cjcat.stardust.common.math.UniformRandom;
import idv.cjcat.stardust.twoD.actions.DeathZone;
import idv.cjcat.stardust.twoD.actions.Move;
import idv.cjcat.stardust.twoD.actions.RandomDrift;
import idv.cjcat.stardust.twoD.actions.SpeedLimit;
import idv.cjcat.stardust.twoD.emitters.Emitter2D;
import idv.cjcat.stardust.twoD.initializers.DisplayObjectClass;
import idv.cjcat.stardust.twoD.initializers.Position;
import idv.cjcat.stardust.twoD.initializers.Velocity;
import idv.cjcat.stardust.twoD.zones.LazySectorZone;
import idv.cjcat.stardust.twoD.zones.RectZone;
//------------------------------------------------------------------------------------------------
const FIREFLY_COLOR:uint = 0xFFCC00;
const FIREFLY_SPEED_AVG:Number = 0.7;
const FIREFLY_SPEED_VAR:Number = 0.6;
const FIREFLY_MAX_SPEED:Number = 1.5;
const FIREFLY_RANDOM_DRIFT:Number = 0.2;
const FIREFLY_LIFE_AVG:Number = 150;
const FIREFLY_LIFE_VAR:Number = 30;
const FIREFLY_SCALE_VAR:Number = 0.3;
const FIREFLY_RADIUS_AVG:Number = 2;
//------------------------------------------------------------------------------------------------
class FireflyEmitter extends Emitter2D {
public function FireflyEmitter(clock:Clock) {
super(clock);
//initializers
addInitializer(new DisplayObjectClass(Firefly));
addInitializer(new Life(new UniformRandom(FIREFLY_LIFE_AVG, FIREFLY_LIFE_VAR)));
addInitializer(new Position(new RectZone(0, 0, 465, 465)));
addInitializer(new Velocity(new LazySectorZone(FIREFLY_SPEED_AVG, FIREFLY_SPEED_VAR)));
addInitializer(new Scale(new UniformRandom(1, FIREFLY_SCALE_VAR)));
//actions
addAction(new Age());
addAction(new DeathLife());
addAction(new Move());
addAction(new AlphaCurve(40, 40));
addAction(new RandomDrift(FIREFLY_RANDOM_DRIFT, FIREFLY_RANDOM_DRIFT));
addAction(new SpeedLimit(FIREFLY_MAX_SPEED));
addAction(new DeathZone(new RectZone( -60, -60, 585, 585), true));
}
}
//------------------------------------------------------------------------------------------------
class Firefly extends Shape {
public function Firefly() {
graphics.beginFill(0xFFFFFF);
graphics.drawCircle(0, 0, FIREFLY_RADIUS_AVG);
}
}