flash on 2016-3-13

by mutantleg 13 Mar 2016

• Related works: 1
Embed

/**
 * Copyright mutantleg ( http://wonderfl.net/user/mutantleg )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/O3Oe
 */

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 var ang:Number = 0;
      
       public function onEnter(e:Event):void
       {
           var mx:Number; var my:Number;
           
           graphics.clear();
           graphics.lineStyle(2, 0);
           
           mx = stage.mouseX; my = stage.mouseY;
           ang +=0.01;
           
           var xr:Number; var yr:Number;
           var ax:Number; var ay:Number;
           ax = 230; ay = 230;
           xr = 64; yr =32;
           
           var nx:Number; var ny:Number;
           var ux:Number; var uy:Number;
           nx = Math.cos(ang);
           ny = Math.sin(ang);
           ux = -ny;
           uy = nx;
           
           graphics.drawCircle(ax,ay,4);
           
           graphics.moveTo(ax+nx*xr +ux*yr,   ay+ny*xr  +uy*yr);
           graphics.lineTo(ax+nx*-xr+ux*yr,   ay+ny*-xr +uy*yr);
           graphics.lineTo(ax+nx*-xr+ux*-yr,  ay+ny*-xr +uy*-yr);
           graphics.lineTo(ax+nx*xr +ux*-yr,  ay+ny*xr  +uy*-yr);
           graphics.lineTo(ax+nx*xr +ux*yr,   ay+ny*xr  +uy*yr);
           
           
           
           var rx:Number; var ry:Number;
           mx -=ax; my-=ay;
           rx = mx * Math.cos(-ang) - my * Math.sin(-ang);
           ry = mx * Math.sin(-ang) + my * Math.cos(-ang);
           mx+=ax;my+=ay;
          // graphics.drawCircle(rx+ax,ry+ay, 8);
           
           
           var ix:Number; var iy:Number;
           if (rx < -xr) { ix = -xr; }
           else if (rx > xr) { ix = xr;}
           else { ix = rx; }
           if (ry < -yr) { iy = -yr; }
           else if (ry > yr) { iy = yr;}
           else { iy = ry; }
           
           rx = ix * Math.cos(ang) - iy * Math.sin(ang);
           ry = ix * Math.sin(ang) + iy * Math.cos(ang);
           
           ix = rx+ax; iy = ry+ay;
           
           graphics.drawCircle(ix,iy,5);
           
           graphics.moveTo(ix,iy);
           graphics.lineTo(mx,my);
           
           
       }//onenter  
        
        
    }//classend
}