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Dead Code Preservation :: Archived AS3 works from wonderfl.net

10万個ぱーてぃくる

なんかいっぱい動かすテスト
洗濯機みたいになってます。
@author jc at bk-zen.com
package  
{
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    import flash.events.Event;
    import flash.events.MouseEvent;
    import net.hires.debug.Stats;
    
    /**
     * なんかいっぱい動かすテスト
     * 洗濯機みたいになってます。
     * @author jc at bk-zen.com
     */
    [SWF(backgroundColor = "0x000000", frameRate = "30")]
    public class Test3 extends Sprite
    {
        protected const NUM_OF_PARTICLES: int = 100000;
        private var main: TestMain;
        
        public function Test3() 
        {
            if (stage) init();
            else addEventListener(Event.ADDED_TO_STAGE, init);
        }
        
        private function init(e:Event = null):void 
        {
            removeEventListener(Event.ADDED_TO_STAGE, init);
            //
            main = new TestMain(stage.stageWidth, stage.stageHeight, NUM_OF_PARTICLES);
            addChild(main.view);
            addChild(new Stats());
            stage.scaleMode = StageScaleMode.NO_SCALE;
            stage.align = StageAlign.TOP_LEFT;
            stage.addEventListener(Event.RESIZE, onResize);
            stage.addEventListener(MouseEvent.CLICK, onClick);
            addEventListener(Event.ENTER_FRAME, onEnter);
            
        }
        
        private function onClick(e:MouseEvent):void 
        {
            main.change();
        }
        
        private function onEnter(e:Event):void 
        {
            main.draw(mouseX, mouseY);
        }
        // りサイズ (未実装)
        private function onResize(e:Event):void 
        {
            main.resize(stage.stageWidth, stage.stageHeight);
        }
    }
}

import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.geom.ColorTransform;
import flash.geom.Point;
import flash.utils.ByteArray;
class TestMain
{
    private var w: int;
    private var h: int;
    private var mw: int;
    private var mh: int;
    public var view: Bitmap;
    private var bmpData: BitmapData;
    private var forceMap: BitmapData;
    private var randomSeed: int;
    private var particles: Array = [];
    private var num: int;
    private var color: uint = 0xF0F0FF;
    private var count: int = 0;
    private var colorTr: ColorTransform;
    
    public function TestMain(w: int, h: int, numOfParticles: int)
    {
        this.w = w;
        mw = w >> 1;
        this.h = h;
        mh = h >> 1;
        bmpData = new BitmapData(w, h, false, 0x00000000);
        forceMap = new BitmapData(mw, mh, false);
        forceMap.perlinNoise(mw >> 1, mh >> 1, 4, Math.random() * 0xFFFF, false, true, 3);
        view = new Bitmap(bmpData);
        num = numOfParticles;
        var i: int;
        var p: Particle;
        while (i < num)
        {
            p = new Particle();
            p.x = Math.random() * w;
            p.y = Math.random() * h;
            particles.push(p);
            i++;
        }
        colorTr = new ColorTransform(1, 1, 1, 1, -32, -16, -16);
    }
    // 描画、マウスの判定を後で追加予定
    public function draw(mouseX: Number, mouseY: Number): void
    {
        var i: int;
        var p: Particle;
        var col: uint;
        bmpData.lock();
        bmpData.colorTransform(bmpData.rect, colorTr);
        while (i < num)
        {
            p = Particle(particles[i]);
            col = forceMap.getPixel(p.x >> 1, p.y >> 1);
            p.vx = p.vx * 0.98 + (( col >> 16 & 0xff)-128) * 0.004;
            p.vy = p.vy * 0.98 + (( col >> 8 & 0xff)-128) * 0.004;
            p.x += p.vx;
            p.y += p.vy;
            if (p.x < 0) p.x += w;
            else if (p.x >= w) p.x -= w;
            if (p.y < 0) p.y += h;
            else if (p.y >= h) p.y -= h;
            bmpData.setPixel(p.x, p.y, color);
            i++;
        }
        bmpData.unlock();
    }
    
    public function change(): void
    {
        forceMap.perlinNoise(mw, mh, 4, Math.random() * 0xFFFF, false, true, 7);
    }
    
    public function resize(w: Number, h: Number): void
    {
        this.w = w;
        this.h = h;
        if (bmpData) 
        {
            bmpData.dispose();
        }
        bmpData = new BitmapData(w, h, false, 0x00000000);
        view.bitmapData = bmpData;
    }
}

class Particle
{
    public var x: Number = 0;
    public var y: Number = 0;
    public var vx: Number = 0;
    public var vy: Number = 0;
    
    public function Particle()
    {
        
    }
}