flash on 2017-1-22

/**
 * Copyright mutantleg ( http://wonderfl.net/user/mutantleg )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/0zit
 */

package {
    import flash.events.Event;
    import flash.display.Sprite;
    public class FlashTest extends Sprite {
        public function FlashTest() {
            
          stage.addEventListener(Event.ENTER_FRAME, onEnter);  
        }//ctor
        
        
        public function getMag(ax:Number, ay:Number):Number
        { return Math.sqrt(ax*ax+ay*ay); }
        
        public function onEnter(e:Event):void
        {
           graphics.clear();
           graphics.lineStyle(2, 0);
           
           var mx:Number; var my:Number;
           var ax:Number; var ay:Number;
           
           mx = stage.mouseX;
           my = stage.mouseY;
           
           ax =235; ay =235;
           
           var ta:Number;
           ta = Math.atan2(my-ay,mx-ax);
           
           graphics.drawCircle(ax,ay, 8);
           graphics.moveTo(ax,ay);
           graphics.lineTo(ax+Math.cos(ta)*256, ay+Math.sin(ta)*256);
           
           var ht:Number;
           ht = 0.7;
           ht = 0.3;
           ht=0.5;
           
           graphics.moveTo(ax,ay);
           graphics.lineTo(ax+Math.cos(ta+ht)*256, ay+Math.sin(ta+ht)*256);
           
           graphics.moveTo(ax,ay);
           graphics.lineTo(ax+Math.cos(ta-ht)*256, ay+Math.sin(ta-ht)*256);


               var x0:Number; var y0:Number;
               var x1:Number; var y1:Number;
               var d:Number; var wd:Number;
            var i:int; var kd:Number;
            d=32; kd=32;
            for (i=0;i<3;i+=1)
            {   
               
               kd*=2;
               d = kd/2;
               //d = 64;
               //d = 64 + i * 64;
               x0 = ax+Math.cos(ta+ht)*d;
               y0 = ay+Math.sin(ta+ht)*d;
               x1 = ax+Math.cos(ta-ht)*d;
               y1 = ay+Math.sin(ta-ht)*d;
               graphics.drawCircle(x0, y0 ,4);
               graphics.drawCircle(x1, y1,4);
               
               wd = getMag(x0-x1, y0-y1);
               
               graphics.moveTo(x0, y0);
               graphics.lineTo(x1, y1);
    
                var kx:Number; var ky:Number;
               kx = x0+(x1-x0)*0.5;
               ky = y0+(y1-y0)*0.5;
               
               wd*=0.5;
               
               graphics.drawCircle(kx,ky, wd); 
               graphics.drawRect(kx-wd,ky-wd,wd+wd,wd+wd);
            }//nexti



           
           /*
           var wx:Number; var wy:Number;
           
           wx = ax + Math.cos(ta) * 64;
           wy = ay + Math.sin(ta) * 64;
           
           graphics.drawCircle(wx,wy,64);
           
           //graphics.drawRect(wx-64,wy-64,128,128);
           graphics.drawRect(wx-128,wy-128,256,256);
           */
           
           
            
            
        }//onenter
        
        
    }//classend
}