package Chart {
	import flash.display.Sprite;
	import flash.text.TextField;
	import flash.display.Loader;
	import flash.events.Event;
	import flash.net.URLRequest;
	import flash.display.Bitmap;
	import flash.display.BitmapData;
	import flash.geom.Matrix;
	import flash.events.MouseEvent;
	import flash.system.LoaderContext;					
	public class Relation extends Sprite	{
		private var fromID:String;			//Who makes the relation
		private var toID:String;			//To whom is related
		private var quality:int;			//Quality of the relation
		private var image:String;
		private var xWanted:uint;		//X Coordinate destiny
		private var yWanted:uint;		//Y Coordinate destiny		
		private var radius:uint = 7;
		var _loader:Loader = new Loader();		
//  Also a description of the relation would be nice
		public function Relation(fromID:String, toID: String, quality:int, image:String=""): void {
			this.fromID = fromID;
			this.toID = toID;
			this.quality = quality;
			this.image = image;
//			init(0,0);
		}
		private function onComplete(event:Event):void {
			var bitmap:BitmapData = new BitmapData(_loader.width, _loader.height);
			bitmap.draw(_loader, new Matrix());
			var matrix:Matrix = new Matrix();
			matrix.scale(2*radius/_loader.width, 2*radius/_loader.height);		//Set the matrix to translate the bitmap
			matrix.translate(radius,radius);
			graphics.beginBitmapFill(bitmap,matrix);							//Fill the following shape with the bitmap
			graphics.drawCircle(0, 0, radius);									//Draw the circle
			graphics.endFill();
		}		
		private function init(x:uint, y:uint):void {
			var loaderContext:LoaderContext = new LoaderContext();
			loaderContext.checkPolicyFile=true;
			_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
			_loader.load(new URLRequest(image), loaderContext);							//Load the photo and eventListener when completed
			setX(x);
			setY(y);
		}

		public function getFromID():String {			//Return the origin of the relation
			return fromID;		
		}
		public function setFromID(fromID:String):void {		//Set the origin of the relation
			this.fromID=fromID;
		}		
		public function getToID():String {				//Return the destination of the relation
			return toID;
		}
		public function setToID(toID:String):void {		//Set the destination of the relation
			this.toID=toID;
		}				
		public function getQuality():int {				//Return the quality of the relation
			return quality;
		}				
		public function setQuality(quality:int):void {		//Set the quality of the relation
			this.quality=quality;
		}		
		public function setX (x:uint) :void {					//Set the actual position X
			this.x=x;
		}
		public function setY (y:uint) :void {					//Set the actual position Y
			this.y=y;
		}
		public function getX ():uint {							//Return the actual position X
			return this.x;
		}
		public function getY (): uint {							//Return the actual position Y
			return this.y;
		}
		public function setXWanted (xWanted:uint) :void {		//Set the destiny X
			this.xWanted = xWanted;
		}
		public function setYWanted (yWanted:uint) :void {		//Set the destiny Y
			this.yWanted=yWanted;
			addEventListener(Event.ENTER_FRAME, onEnterFrame);
		}						
		private function onEnterFrame(event:Event):void {		//Move the character to the final destination
			if (xWanted > x) {
				x+=5;
				setX(x);
			} 
			if (xWanted < x) {
				x-=5;
				setX(x);
			}
			if (yWanted > y) {
				y+=5
				setY(y);
			} 
			if (yWanted < y) {
				y-=5;
				setY(y);
			}
			if (((x>(xWanted-5)) && (x<(xWanted+5))) && ((y>(yWanted-5)) && (y<(yWanted+5))))		//When the characters are in their position
				removeEventListener(Event.ENTER_FRAME, onEnterFrame);								//we remove the eventListener to save memory
		}

	}
}