package
{
	
	import org.cove.ape.*;
	import com.mrdoob.display.Blobalise;
	//import com.mrdoob.utils.Tracer;
	
	import flash.display.Sprite;
	import flash.display.BlendMode;
	import flash.events.Event;
	import flash.events.MouseEvent;

	[SWF( backgroundColor='0xFFFFFF', frameRate='30', width='600', height='600')]
	
	public class Main extends Sprite
	{
		
		private var circle			:CircleParticle;
		private var square			:RectangleParticle;
		
		private var addingParticles	:Boolean = false;
		
		private var squareGroup		:Group;
		private var squareComposite	:Composite;
		private var circleGroup		:Group;
		
		private var stageSize		:Number = 600;
		
		
		private var container		:Sprite;
		private var blobsRender		:Blobalise;
		
		private var particleLimit	:Number = 100;
		
		public function Main()
		{
			stage.quality = "LOW";
			
			container = new Sprite();
			addChild(container);
			
			APEngine.init(1/4);
			
			APEngine.container = container;
			APEngine.addMasslessForce(new Vector(0, 3));
			
			
			circleGroup = new Group();
			
			for (var i:Number = 0; i < 100; i++)
			{	
				addParticle(Math.random()*stageSize,-Math.random()*100-50);
			}
			
			
			squareGroup = new Group();
						
			for (var i:Number = 0; i < 10; i++)
			{
				square = new RectangleParticle(Math.random()*stageSize,Math.random()*stageSize,200,20,Math.random()*180,true,1,0,0);
				//square.alwaysRepaint = true;
				square.setStyle(0,0x000000,0,0xE0E0E0,1);
				square.sprite.cacheAsBitmap = true;
				squareGroup.addParticle(square);
				squareGroup.removeParticle
			}
						
			APEngine.addGroup(squareGroup);
			APEngine.addGroup(circleGroup);
			
			circleGroup.addCollidable(squareGroup);
			circleGroup.collideInternal = true;
			
			addEventListener(MouseEvent.MOUSE_DOWN, startAdding);
			addEventListener(MouseEvent.MOUSE_UP, stopAdding);
			addEventListener(Event.ENTER_FRAME, run);
			
			// Blobifying			
			blobsRender = new Blobalise(container, stageSize, stageSize, true);
			blobsRender.blendMode = BlendMode.MULTIPLY
			addChild(blobsRender);
						
		}
		
		private function startAdding(e:Event):void
		{
			addingParticles = true;
		}
		
		private function stopAdding(e:Event):void
		{
			addingParticles = false;
		}
				
		private function addParticle(_x,_y):void
		{
			circle = new CircleParticle(_x,_y,Math.random()*10+2,false,1,0.1,0.0);
			circle.setStyle(0,0x000000,0,0x000000,1);
			circle.sprite.cacheAsBitmap = true;
			circleGroup.addParticle(circle);
			
			if (circleGroup.particles.length > particleLimit)
				circleGroup.removeParticle(circleGroup.particles[0]);
		}
		
		private function run(e:Event):void
		{	
		
			if(addingParticles)
				addParticle(mouseX,mouseY);
			
			for (var j:String in circleGroup.particles)
			{
				if (circleGroup.particles[j].py > (stageSize + 50))
				{
					circleGroup.particles[j].py = -Math.random()*100-50;
					circleGroup.particles[j].px = Math.random()*50+(stageSize*.5); //stage.stageWidth
				}
			}

			APEngine.step();			
			APEngine.paint();
		}
	}
}