flash on 2014-10-22

by mutantleg 22 Oct 2014

Embed

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

package {
    import flash.text.TextField;
    import flash.events.Event;
    import flash.display.Sprite;
    public class FlashTest extends Sprite {
        public function FlashTest() {
                 
           deb = new TextField();
           deb.width=320;
           deb.height=240;
           deb.mouseEnabled=false;
           addChild(deb);      
                 
           stage.addEventListener(Event.ENTER_FRAME, onEnter);         
        }//ctor
        
        public var deb:TextField;
        
        public var camx:Number = -230;
        public var camy:Number = -230;
        
        public var cx:Number = 0;        public var cy:Number = 0;
        public var ang:Number = 0;
        public var vx:Number = 0;        public var vy:Number = 0;
        
        public function onEnter(e:Event):void        
        {
            var mx:Number;      var my:Number;
            var wmx:Number;     var wmy:Number;
            
            mx = stage.mouseX;
            my = stage.mouseY;
            
            wmx = camx + mx;
            wmy = camy + my;
            
            ang = Math.atan2(wmy-cy, wmx-cx);
            
            var d:Number;
            var ms:Number;
            d = getDist(wmx-cx,wmy-cy);
            //deb.text = "d " + d ;
            
            
            if (d > 80)
            {
              ms = 0.1;
              if (d > 140) {ms=0.2;}
              if (d > 210) {ms=0.3;}

              vx += Math.cos(ang) * ms;
              vy += Math.sin(ang) * ms;   
            } else if (d < 70) { vx *= 0.9; vy*=0.9; }
            
            
            vx *= 0.99; vy*=0.99;
            cx +=vx; cy+=vy;
            
            camx = camx + (cx-(camx+230))*0.1;
            camy = camy + (cy-(camy+230))*0.1;
            
            
            graphics.clear();
            graphics.lineStyle(2, 0);


            graphics.lineStyle(1,0,0.5);
            drawGrid(camx*0.5,camy*0.5);
            drawGrid((camx+465)*0.5,(camy+465)*0.5);


            graphics.lineStyle(2,0);            
            var kx:Number; var ky:Number;
            kx = cx - camx;
            ky = cy - camy;

            graphics.drawCircle(kx,ky, 16);
            graphics.moveTo(kx,ky);
            graphics.lineTo(kx+Math.cos(ang)*16, ky+Math.sin(ang)*16);
            
            graphics.moveTo(mx,my-8); graphics.lineTo(mx,my+8);
            graphics.moveTo(mx-8,my); graphics.lineTo(mx+8,my);
            
            drawGrid(camx,camy);
            
            
            //deb.text = " "+cx+" "+cy+" "+kx;
            //deb.text = " "+kx+" "+ky;
            
            kx = int(cx / 465)+32;
            ky = int(cy/465)+32;
            graphics.drawRect(0,0,64,64);
            graphics.drawCircle(kx,ky,4);
            
            
        }//onenter
        
        public function drawGrid(sx:Number, sy:Number):void
        {
            var kx:Number; var ky:Number;
            kx = int(sx/465)*465;
            kx -= sx; if (kx < 0) { kx+=465;} else if (kx > 465) {kx-=465;}
            graphics.moveTo(kx, 0); graphics.lineTo(kx,465);
          
            ky = int(sy/465)*465;
            ky -= sy; if (ky < 0) { ky+=465;} else if (ky > 465) {ky-=465;}
            graphics.moveTo(0, ky); graphics.lineTo(465, ky);
            
        }//drawgrid
        
        
        public function getDist(ax:Number, ay:Number):Number
        { return Math.sqrt(ax*ax+ay*ay); }
        
        
    }//classend
}