[Stardust] RendererにcopyPixelsを使う（向きのあるパーティクル版）
/**
* Copyright Nicolas ( http://wonderfl.net/user/Nicolas )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/1VnB
*/
// forked from paq's [Stardust] RendererにcopyPixelsを使う
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Graphics;
import flash.display.Shape;
import flash.display.Sprite;
import flash.display.StageQuality;
import flash.events.Event;
import flash.geom.ColorTransform;
import idv.cjcat.stardust.common.clocks.SteadyClock;
import net.hires.debug.Stats;
[SWF(width = 465, height = 465, backgroundColor = 0x000000, frameRate = 60)]
public class Main extends Sprite
{
static private const COLOR_TRANSFORM:ColorTransform = new ColorTransform (0.9, 0.9, 0.95);
private var _emitter:MyEmitter;
private var _canvas:BitmapData;
public function Main():void
{
if (stage) init();
else addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void
{
removeEventListener(Event.ADDED_TO_STAGE, init);
_canvas = new BitmapData(465, 465, false, 0x000000);
var bmp:Bitmap = new Bitmap(_canvas);
addChild(bmp);
var sp:Shape = new Shape();
var g:Graphics = sp.graphics;
g.lineStyle(2, 0x333333);
g.beginFill(0xFFFFFF, 0.5);
g.moveTo(0, 5);
g.lineTo(10, 5);
g.lineTo(10, 0);
g.lineTo(20, 10);
g.lineTo(10, 20);
g.lineTo(10, 15);
g.lineTo(0, 15);
g.lineTo(0, 5);
//var particleBitmap:BitmapData = new BitmapData(20, 20, true, 0x00000000);
//particleBitmap.draw(sp);
_emitter = new MyEmitter(new SteadyClock(30));
var renderer:DirectedCopyPixelsRenderer = new DirectedCopyPixelsRenderer(_canvas, sp);
renderer.addEmitter(_emitter);
stage.quality = StageQuality.LOW;
addChild(new Stats());
addEventListener(Event.ENTER_FRAME, loop);
}
private function loop(e:Event):void
{
_canvas.colorTransform(_canvas.rect, COLOR_TRANSFORM);
_emitter.point.x = stage.mouseX - 10;
_emitter.point.y = stage.mouseY - 10;
_emitter.step();
}
}
}
import flash.display.BitmapData;
import flash.display.DisplayObject;
import flash.geom.Point;
import flash.geom.Matrix;
import idv.cjcat.stardust.common.actions.Age;
import idv.cjcat.stardust.common.actions.DeathLife;
import idv.cjcat.stardust.common.actions.ScaleCurve;
import idv.cjcat.stardust.common.clocks.Clock;
import idv.cjcat.stardust.common.events.EmitterEvent;
import idv.cjcat.stardust.common.initializers.Life;
import idv.cjcat.stardust.common.math.UniformRandom;
import idv.cjcat.stardust.common.particles.ParticleIterator;
import idv.cjcat.stardust.common.renderers.Renderer;
import idv.cjcat.stardust.twoD.actions.Move;
import idv.cjcat.stardust.twoD.emitters.Emitter2D;
import idv.cjcat.stardust.twoD.fields.UniformField;
import idv.cjcat.stardust.twoD.initializers.Position;
import idv.cjcat.stardust.twoD.initializers.Velocity;
import idv.cjcat.stardust.twoD.particles.Particle2D;
import idv.cjcat.stardust.twoD.zones.LazySectorZone;
import idv.cjcat.stardust.twoD.zones.SinglePoint;
import idv.cjcat.stardust.common.math.StardustMath;
class MyEmitter extends Emitter2D
{
public var point:SinglePoint;
public function MyEmitter(clock:Clock)
{
super(clock)
point = new SinglePoint();
addInitializer(new Position(point));
addInitializer(new Velocity(new LazySectorZone(3, 1)));
addInitializer(new Life(new UniformRandom(50, 50)));
addAction(new Move());
addAction(new Age());
addAction(new DeathLife());
}
}
class DirectedCopyPixelsRenderer extends Renderer
{
public var targetBitmapData:BitmapData;
public var sourceDisplayObject:DisplayObject;
public var sourceBitmapDataList:Array = [];
private var point:Point;
public function DirectedCopyPixelsRenderer(targetBitmapData:BitmapData = null, sourceDisplayObject:DisplayObject = null)
{
this.targetBitmapData = targetBitmapData;
this.sourceDisplayObject = sourceDisplayObject;
var width:int = this.sourceDisplayObject.width;
var height:int = this.sourceDisplayObject.height;
var baseBitmapData:BitmapData = new BitmapData(width, height, true, 0x00000000);
baseBitmapData.draw(sourceDisplayObject);
sourceBitmapDataList[0] = baseBitmapData;
var matrix:Matrix = new Matrix();
for (var i:int = 1; i < 360; i++)
{
var bmd:BitmapData = new BitmapData(width, height, true, 0x00000000);
matrix.translate(-width / 2, -height / 2);
matrix.rotate(1 * StardustMath.DEGREE_TO_RADIAN);
matrix.translate(width / 2, height / 2);
bmd.draw(baseBitmapData, matrix);
sourceBitmapDataList[i] = bmd;
}
point = new Point();
}
override protected function render(e:EmitterEvent):void
{
if (!targetBitmapData) return;
targetBitmapData.lock();
var particle:Particle2D;
var rotation:int;
var sourceImage:BitmapData
var iter:ParticleIterator = e.particles.getIterator();
while (particle = iter.particle as Particle2D)
{
point.x = particle.x;
point.y = particle.y;
rotation = int(Math.atan2(particle.vy, particle.vx) * StardustMath.RADIAN_TO_DEGREE);
if (rotation < 0) rotation += 360;
sourceImage = sourceBitmapDataList[rotation];
targetBitmapData.copyPixels(sourceImage, sourceImage.rect, point);
iter.next();
}
targetBitmapData.unlock();
}
}