package {
	
	import flash.display.Stage;
	import flash.events.MouseEvent;
	import flash.events.Event;
	
	public class DragObject extends ShadowObject {
		
		public var to_x:Number;
		public var to_y:Number;
		private var mouseup:Boolean;
		
		public var offsetx:Number;
		public var offsety:Number;
		
		public function DragObject(posoffsetx:Number = 0, posoffsety:Number = 0) {
			
			offsetx = posoffsetx;
			offsety = posoffsety;
			
			to_x = this.y-offsetx;
			to_y = this.x-offsety;
			
			mouseup = true;
			
			this.addEventListener(MouseEvent.MOUSE_DOWN, this.startMove);
			this.addEventListener("releaseoutside", this.stopMove);
		}
		
		private function startMove(event:MouseEvent):void {
			mouseup = false;
			this.addEventListener(Event.ENTER_FRAME, dragUser);
		}
		
		public function stopMove(event:Event):void {
			mouseup = true;
		}
		
		private function dragUser(event:Event):void {
			
			if(!mouseup) {
				to_x = Math.round(stage.mouseX-offsetx);
				to_y = Math.round(stage.mouseY-offsety);
			}
			
			
			if(this.x < to_x) {
				this.x+= Math.round(Math.abs(this.x-to_x)/5);
			} else if(this.x > to_x) {
				this.x-= Math.round(Math.abs(this.x-to_x)/5);
			}
			
			if(this.y < to_y) {
				this.y+= Math.round(Math.abs(this.y-to_y)/5);
			} else if(this.y > to_y) {
				this.y-= Math.round(Math.abs(this.y-to_y)/5);
			}
			
			if(this.y == to_y && this.x == to_x) {
				this.removeEventListener(Event.ENTER_FRAME, dragUser);
			}
		}
	}
	
}