Beautifl - Flash Gallery

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豆腐をボコボコにしてやんよ
coppieeee 2009年8月27日 MIT License
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      package 
{
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.events.MouseEvent;
    import flash.geom.ColorTransform;
    import flash.geom.Rectangle;
    import net.hires.debug.Stats;
    
    [SWF(width=465, height=465,frameRate=30)]
    public class DoNotClick extends Sprite 
    {
        private static const WIDTH:Number = 465;
        private static const HEIGHT:Number = 465;
        private var _canvas:BitmapData;
        private var _particles:Vector.<Particle>;
        public function DoNotClick():void 
        {
            _canvas = new BitmapData(WIDTH, HEIGHT, false, 0x000000);
            addChild(new Bitmap(_canvas));
            
            _particles = new Vector.<Particle>();
            
            for (var i:int = 0; i < 300; i++ )
            {
                for (var j:int = 0; j < 300; j++)
                {
                    _particles.push(new Particle(i+100, j+100));
                }
            }
            addEventListener(Event.ENTER_FRAME, onEnterFrame);
            stage.addEventListener(MouseEvent.CLICK, onClick);
            addChild(new Stats());
        }
        private function onEnterFrame(e:Event):void
        {
            _canvas.lock();
            
            var cr:Rectangle = new Rectangle(0, 0, _canvas.width, _canvas.height);
            var ct:ColorTransform = new ColorTransform (0.9, 0.9, 0.9);
            _canvas.colorTransform(cr, ct);
            
            for each(var p:Particle in _particles)
            {
                p.vx *= 0.99;
                p.vy *= 0.99;
                p.x += p.vx;
                if (p.falled)
                {
                    p.vy += 0.05;
                }
                p.y += p.vy;
                _canvas.setPixel(p.x, p.y, p.color);
            }
            _canvas.unlock();
        }
        private function onClick(e:MouseEvent):void
        {
            var mouseX:Number = stage.mouseX;
            var mouseY:Number = stage.mouseY;
            for each(var p:Particle in _particles)
            {
                var dx:Number = mouseX - p.x;
                var dy:Number = mouseY - p.y;
                var d:Number = Math.sqrt(dx * dx + dy * dy);
                var radian:Number = Math.atan2(dy, dx);
                var speed:Number = 300 / (d * d);
                p.vx += -Math.cos(radian) * speed;
                p.vy += -Math.sin(radian) * speed;
                if (speed > 1)
                {
                    p.color = 0xAAAAAA;
                    p.falled = true;
                }
                else
                {
                    var c:uint = Math.pow(1 - speed,4) / 1 * 0xFF;
                    if (c < (p.color & 0xFF))
                    {
                        p.color = (c << 16) | (c << 8) | c;
                    }
                }
            }
        }
        
    }
    
}
class Particle 
{
    public var x:Number;
    public var y:Number;
    public var vx:Number = 0;
    public var vy:Number = 0;
    public var color:Number = 0xFFFFFF;
    public var falled:Boolean = false;
    public function Particle(x:Number,y:Number)
    {
        this.x = x;
        this.y = y;
    }
}