package
{
	import flash.display.Sprite;
	import flash.display.Graphics;
	import flash.events.Event;
	import flash.events.MouseEvent;
	
	[SWF(backgroundColor=0xffffff)]
	
	public class actionscript_extra_paint extends Sprite
	{
    	private var new_size_influence:Number = 0.5;
		private var mid_point_push:Number = .75;
		private var max_line_width:Number = (Math.random() * 10) + 10;
		//private var info.visible:Boolean = false;
		private var curves:Array;
		private var start_x:Number;
		private var start_y:Number;
		private var mid_x:Number;
		private var mid_y:Number;
		private var end_x:Number;
		private var end_y:Number;
		
		private var with_wii:int = 0;
		
		private var distance:Number;
		private var new_size:Number;
		private var parity:Boolean;
		private var size:Number = 0;
		private var color:uint = 0x000000;
		private var aggression:Number = 5.4; // 12.4;//3.4;
		
		
		
		
		
		
		
		
		
		public function actionscript_extra_paint()
		{
			init();
		}
		
		private function init():void
		{
			graphics.lineStyle(1);
			
			start_x = mid_x = end_x = stage.stageWidth / 2;
			start_y = mid_y = end_y = stage.stageHeight / 2;
			
			addEventListener(Event.ENTER_FRAME, paint);
			stage.addEventListener(MouseEvent.CLICK, onMouseClick); 
			//stage.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
			//stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
		}
		
		private function onMouseClick(event:MouseEvent):void{
			color = Math.random() * 0xFFFFFF;
			//txt.text = "Color: 0x" + color.toString();
		}
		
		private function onMouseDown(event:MouseEvent):void
		{
			graphics.moveTo(mouseX, mouseY);
			stage.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
		}
		
		private function onMouseUp(event:MouseEvent):void
		{
			stage.removeEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
		}
		
		private function onMouseMove(event:MouseEvent):void
		{
			//graphics.lineTo(mouseX, mouseY);
			paint(event);
		}
		
		public function paint(event:Event):void {
			//counter++;
			//txt.text = counter.toString();
			
			//if (with_wii == 0) {
			//vpX = mouseX;
			//vpY = mouseY;
			//}
			
			//AE
			//graphics.lineTo(mouseX, mouseY);
			
			/**
			 * 
			 * The code for the paint function was ported and adapted from:
			 *  "Splatter", by Stamen Design 
			 * 	http://stamen.com/projects/splatter
			 * 
			 **/
			
			mid_x = ((end_x - start_x) * (1 + mid_point_push)) + start_x;
			mid_y = ((end_y - start_y) * (1 + mid_point_push)) + start_y;
			start_x = end_x;
			start_y = end_y;
			//end_x = vpX;// = mouseX;
			//end_y = vpY;// = mouseY;
			end_x = mouseX;
			end_y = mouseY;
			distance = Math.sqrt(Math.pow((end_x - start_x), 2) + Math.pow((end_y - start_y), 2));
			new_size = max_line_width / distance;
			size = aggression*new_size;//(new_size_influence * new_size) + ((1 - new_size_influence) * size);
			splat(graphics, start_x, start_y, end_x, end_y, mid_x, mid_y, size);
			parity = false;
			/*
			_parent.new_size_influence += ((Math.random() * 0.1) - 0.05);
			_parent.mid_point_push += ((Math.random() * 0.1) - 0.05);
			_parent.max_line_width += ((Math.random() * 4) - 2);
			*/
			new_size_influence += ((Math.random() * 0.1) - 0.05);
			mid_point_push += ((Math.random() * 0.1) - 0.05);
			max_line_width += ((Math.random() * 4) - 2);
		}
		
		private function splat(obj:Graphics, x1:Number, y1:Number, x2:Number, y2:Number, x3:Number, y3:Number, d:Number):void	{
			//var obj:Graphics = painting.graphics;
			
			obj.lineStyle(d, color, 100);
			//txt.text = d.toString();
			obj.moveTo(x1, y1);
			obj.curveTo(x3, y3, x2, y2);
			//curves.push([x1, y1, x3, y3, x2, y2, d]);
			
			// splotch
			var dd:Number = Math.sqrt(Math.pow((x2 - x1), 2) + Math.pow((y2 - y1), 2));
		
		 	for (var i:uint = 0; i<Math.floor(5*Math.pow(Math.random(), 4)); i++) {
			// positioning of splotch varies between ±4dd, tending towards 0
				var splat_range:Number = 1;
				var x4:Number = dd * 1 * (Math.pow(Math.random(), splat_range) - (splat_range/2));
				var y4:Number = dd * 1 * (Math.pow(Math.random(), splat_range) - (splat_range/2));
				// direction of splotch varies between ±0.5
				var x5:Number = Math.random() - 0.5;
				var y5:Number = Math.random() - 0.5;
				var d_:Number = d*(0.5+Math.random());
				obj.lineStyle(d_, color, 100);
				obj.moveTo((x1+x4), (y1+y4));
				obj.lineTo((x1+x4+x5), (y1+y4+y5));
				//curves.push([(x1+x4), (y1+y4), (x1+x4+x5), (y1+y4+y5), (x1+x4+x5), (y1+y4+y5), d_]);
			
			 }
			//addChild(obj); //?AE
		}
		
	}
}