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

forked from: 重力マウス(ダイイングメッセージ)

リンクリストにしてみたけどそんなに速くない??
_bmd.fillRect()を_bmd.setPixel()に変更。
sin(),cos(),atan2(),sqrt()を排除。
Add final class / mouseEnalbled = false by clockmaker
/**
 * Copyright glasses_factory ( http://wonderfl.net/user/glasses_factory )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/8xOz
 */

// forked from dice's 重力マウス(ダイイングメッセージ)
// forked from dice's 重力マウス(ハーティクル)
// forked from fumix's forked from: 重力マウス(プチ軽量化:10万パーティクル)
// forked from clockmaker's 重力マウス(プチ軽量化:10万パーティクル)
// forked from coppieee's 重力マウス(さらに軽量化してみた)
// forked from paq's forked from: 重力マウス(ちょっぴり軽量化してみた)
// forked from fumix's 重力マウス(リンクリストにしてみた)
// forked from undo's 重力マウス
// リンクリストにしてみたけどそんなに速くない??
//_bmd.fillRect()を_bmd.setPixel()に変更。
//sin(),cos(),atan2(),sqrt()を排除。
// Add final class / mouseEnalbled = false by clockmaker
package
{
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    import flash.events.Event;
    import flash.geom.ColorTransform;
    import flash.geom.Point;
    import flash.geom.Rectangle;
    import flash.text.TextField;
    import flash.text.TextFormat;
    import net.hires.debug.Stats;

    [SWF(frameRate='60', width='465', height='465', backgroundColor='0x0')]

    import flash.utils.Dictionary;
    public class Yasu extends Sprite
    {
        private const MARK:String = " くそっやられた犯人は ヤスノブ";
        private var _bmp:Bitmap;
        private var _bmd:BitmapData;
        private var _bmdRect:Rectangle;
        private var _colorTransform:ColorTransform = new ColorTransform(0.9, 0.1, 0.1, 1,0,1);
        
        private var _bmd_h:BitmapData;

        private var _first:Node;
        private var _maxNum:int = 50000;
        private var _cnt:int = 0;

        public function Yasu()
        {
            if(stage) init(null);
            else addEventListener(Event.ADDED_TO_STAGE, init);
            return;
        }

        private function init(evt:Event):void
        {
            removeEventListener(Event.ADDED_TO_STAGE, init);
            
            this.stage.align = StageAlign.TOP_LEFT;
            this.stage.scaleMode = StageScaleMode.NO_SCALE;
            this.stage.quality = "low";
            this.stage.frameRate = 120;
            this.mouseEnabled = false;
            this.mouseChildren = false;
        
            var old:Node;

            _bmd = new BitmapData(465, 465, false, 0x000000);
            _bmp = new Bitmap(_bmd);
            addChild(_bmp);
            this._bmdRect = _bmd.rect;

            var i:int;
            for (i = 0; i < this._maxNum; i++)
            {
                var n:Node = new Node();
                n.pos_x = Math.random() * 465 >> 0;
                n.pos_y = Math.random() * 465 >> 0;
                //リンクリスト
                if (_first == null) {
                    old = _first = n;
                } else {
                    old.next = n;
                    old = n;
                }
            }
            
            var tf:TextFormat = new TextFormat(null, 128, 0xffffff);
            var txts:Vector.<TextField> = new Vector.<TextField>(9);
            for (i = 0; i < 16; i++) {
                txts[i] = new TextField();
                txts[i].defaultTextFormat = tf;
                txts[i].autoSize = "center";
                txts[i].text = MARK.substr(i,1);
                txts[i].x = ((465 / 8) * (i%4*2+1)) - txts[i].width / 2;
                txts[i].y = ((465 / 8) * (int(i/4)*2+1)) - txts[i].height / 2;
                addChild(txts[i]);
            }
            _bmd_h = new BitmapData(465, 465, false, 0);
            _bmd_h.draw(this);
            for (i = 0; i < 16; removeChild(txts[i++]) ){};
            txts = null;
            addChild(new Stats());
            addEventListener(Event.ENTER_FRAME, onEnter);
        }

        private function onEnter(evt:Event):void
        {
            var gravPoint_x:Number = mouseX;
            var gravPoint_y:Number = mouseY;
            var n:Node = _first;
            //var calc:Boolean = _cnt % 4 == 0;
            
            this._bmd.lock();
            this._bmd.colorTransform(this._bmdRect, this._colorTransform);
            do
            {
                // 4回に1回ぐらいの処理に
                //if(calc){
                    var diff_x:Number = gravPoint_x - n.pos_x;
                    var diff_y:Number = gravPoint_y - n.pos_y;
                    var acc:Number = 200 / (diff_x * diff_x + diff_y * diff_y);
                    var acc_x:Number = acc * diff_x;
                    var acc_y:Number = acc * diff_y;
                    n.v_x += acc_x;
                    n.v_y += acc_y;
                //}
                
                n.pos_x += n.v_x;
                n.pos_y += n.v_y;
                
                if(_bmd_h.getPixel(n.pos_x,n.pos_y) != 0){
                    n.v_x *= 0.2;
                    n.v_y *= 0.2;
                } else {
                    n.v_x *= 0.95;
                    n.v_y *= 0.95;
                }
                
                /*
                if(calc)
                {
                    if (n.pos_x > 465)
                        n.pos_x -= 465;
                    else if (n.pos_x < 0)
                        n.pos_x += 465;
                    if (n.pos_y > 465)
                        n.pos_y -= 465;
                    else if (n.pos_y < 0)
                        n.pos_y += 465;
                }
                */
                
                this._bmd.setPixel(n.pos_x >> 0, n.pos_y >> 0, 0xff0000); 
            }
            while (n = n.next);
            this._bmd.unlock();
            
            //_cnt ++;
        }
    }
}

final class Node
{
    public var v_x:Number = 0;
    public var v_y:Number = 0;
    public var pos_x:Number = 0;
    public var pos_y:Number = 0;
    public var next:Node;
}