package {
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.BitmapDataChannel;
    import flash.display.GradientType;
    import flash.display.SpreadMethod;
    import flash.display.Sprite;
    import flash.display.MovieClip;
	import flash.filters.BitmapFilter;
	import flash.events.Event;
	import flash.events.MouseEvent;
	
    import flash.filters.DisplacementMapFilter;
    import flash.filters.DisplacementMapFilterMode;
    import flash.geom.Matrix;
    import flash.geom.Point;
    import flash.text.TextField;
    
    public class DisplacementMapFilterExample extends Sprite {
	
		private var m:mymap;
		private var img;
		private var mycover;
		private var bitmapData;
		private var displaceFilter;
		private var strengthX:Number = 70;
		private var strengthY:Number = 40;
        public function DisplacementMapFilterExample() {
          //  draw();
		   m = new mymap();
		   img = new test();
		   mycover = new cover();
		   
		    bitmapData = new BitmapData(img.width, img.height);
			 var  mapPoint       = new Point(0, 0);
			  displaceFilter = new DisplacementMapFilter(bitmapData, mapPoint, BitmapDataChannel.RED, BitmapDataChannel.BLUE, strengthX, strengthY, DisplacementMapFilterMode.CLAMP);
			addChild(m);
			addChild(img);
			addChild(mycover);
		  //addEventListener(MouseEvent.MOUSE_MOVE, moveDisplacer);
		  img["dot"].addEventListener(MouseEvent.MOUSE_DOWN, startDotDrag);
		 // img["dot"].addEventListener(MouseEvent.MOUSE_UP, stopDotDrag);
		 // addEventListener(Event.ENTER_FRAME, moveDisplacer);
		  var t
        }
		private function addDrop(e:Event=null){
			var r = new raindrop();
			r.x = rand(0, 550);
			r.y = rand(0, 400);
			m.addChild(r);
		}
		private function rand(minVal:int, maxVal:int):int {
			return minVal + Math.floor(Math.random() * (maxVal + 1 - minVal));
		}
		private function startDotDrag(e:Event=null){
			addEventListener(MouseEvent.MOUSE_MOVE, dragDot);
			stage.addEventListener(MouseEvent.MOUSE_UP, stopDotDrag);
		}
		private function stopDotDrag(e:Event=null){
			removeEventListener(MouseEvent.MOUSE_MOVE, dragDot);
			stage.removeEventListener(MouseEvent.MOUSE_UP, stopDotDrag);
		}
		private function dragDot(e:Event=null){
			//img["dot"]
			img["dot"].x = mouseX ;
			img["dot"].y = mouseY ;
		}
		
		//var bmp = new flash.display.BitmapData(image_mc._width, image_mc._height);
		private function moveDisplacer(e:Event=null){
			//m["displacer"].x = mouseX ;
				//m["displacer"].y = mouseY ;
			if( m["displacer"].y < 410){
				m["displacer"].y += 10;
			}else{
				m["displacer"].y = -220;
			}
			
			//mycover.x = mouseX ;
			//mycover.y = mouseY ;
			
			bitmapData.draw(m);
			 
			
			img.filters = [displaceFilter];

		}

    }
}