forked from: Sludge

勢いのみで、全然最適化してないです（所々やや重い）
@author ue

by alwAYs 12 Apr 2011

• Forked from _ueueueueue's Sludge
• Diff: 3
• Related works: 2

Tags

efecto, rojo
Embed

/**
 * Copyright alwAYs ( http://wonderfl.net/user/alwAYs )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/aoG5
 */

// forked from _ueueueueue's Sludge
package 
{
    import flash.display.*;
    import flash.events.*;
    import flash.filters.BlurFilter;
    import flash.geom.*;
    import flash.text.*;
    import flash.ui.*;
    import net.hires.debug.Stats;
    
    [SWF(backgroundColor=0xFFFFFF)]
    
    /**
     * 勢いのみで、全然最適化してないです（所々やや重い）
     * @author ue
     */
    
    public class Main extends Sprite 
    {
        private const NUM:int = 50;
        
        private var container:Sprite;
        private var balls:Vector.<Ball>;
        private var divide:Number = 1200;
        
        public function Main():void 
        {
            container = new Sprite();
            container.x = stage.stageWidth / 2;
            container.y = stage.stageHeight / 2;
            container.z = 0;
            addChild(container);
            
            balls = new Vector.<Ball>(NUM, true);
            for (var i:int = 0; i < NUM; i++) 
            {
                var ball:Ball = new Ball();
                ball.x = Math.random() * 120 - 60;
                ball.y = Math.random() * 120 - 60;
                ball.z = Math.random() * 120 - 60;
                ball.vx = Math.random() * 2 - 1;
                ball.vy = Math.random() * 2 - 1;
                //ball.vz = Math.random() * 4 - 2;
                ball.blendMode = BlendMode.DIFFERENCE;
                ball.filters = [new BlurFilter(10,10)];
                container.addChild(ball);
                balls[i] = ball;
            }
            addEventListener(Event.ENTER_FRAME, update);
            
            addChild(new Stats());
        }
        
        private function update(e:Event):void 
        {
            //balls.sort(depth);
            for (var i:int = 0; i < NUM; i++) 
            {
                var ball:Ball = balls[i];
                //container.addChildAt(ball, i);
                
                var dx:Number = 0 - ball.x;
                var dy:Number = 0 - ball.y;
                var dist:Number = Math.sqrt(dx * dx + dy * dy);
                
                if (ball.x > 0) ball.vx -= dist / divide;
                else ball.vx += dist / divide;
                if (ball.y > 0) ball.vy -= dist / divide;
                else ball.vy += dist / divide;
                //if (ball.z > 0) ball.vz -= dist / divide;
                //else ball.vz += dist / divide;
                
                ball.x += ball.vx;
                ball.y += ball.vy;
                //ball.z += ball.vz;
            }
        }
        
        //private function depth(a:Ball, b:Ball):int
        //{
            //var aPos:Vector3D =  a.transform.matrix3D.position;
            //aPos = container.transform.matrix3D.deltaTransformVector(aPos);
            //var bPos:Vector3D =  b.transform.matrix3D.position;
            //bPos = container.transform.matrix3D.deltaTransformVector(bPos);
            //return bPos.z - aPos.z;
        //}
    }
}

import flash.display.Sprite;
import flash.display.Stage;

class Ball extends Sprite
{
    public var vx:Number;
    public var vy:Number;
    public var vz:Number;
    public function Ball()
    {
        var element:uint = Math.random() * 256 + 50; 
        graphics.beginFill(element << 32 | element << 8 | element);
        graphics.drawCircle(0, 0, Math.random() * 40 + 10);
        graphics.endFill();
    }
}