package
{
	import flash.events.Event;
	import flash.events.MouseEvent;
	import flash.filters.GlowFilter;
 
	import org.papervision3d.core.geom.renderables.Vertex3D;
	import org.papervision3d.core.math.Number3D;
	import org.papervision3d.core.math.Plane3D;
	import org.papervision3d.lights.PointLight3D;
	import org.papervision3d.materials.shadematerials.PhongMaterial;
	import org.papervision3d.objects.DisplayObject3D;
	import org.papervision3d.objects.primitives.Sphere;
	import org.papervision3d.view.BasicView;
 
	import soulwire.papervision3d.Ribbon3D;
 
	[SWF(width="900", height="480", backgroundColor="#ffffff", frameRate="60")]
	public class Ribbons extends BasicView
	{
		private var light:PointLight3D;
		private var ribbon:Ribbon3D;
		private var planeToDragOn:Plane3D;
		private var n:Number = 0;
		private var sphere:Sphere;
 
		private var cameraPitch:Number = 90;
		private var cameraYaw:Number = 270;
		private var cameraTarget:DisplayObject3D = DisplayObject3D.ZERO;
		private var isOrbiting:Boolean = false;
 
		public function Ribbons()
		{
			viewport.filters = [new GlowFilter(0x000000, 1, 4, 4, 10)];
			camera.z = -500;
			camera.fov = 110;
			planeToDragOn = new Plane3D(new Number3D(0, 0, 1), new Number3D(0,0,0));
 
			light = new PointLight3D();
			light.x = -500;
			light.y = -500;
			light.z = -500;
			var flatshadeMaterial:PhongMaterial = new PhongMaterial(light, 0x000000, 0xcc0000, 10);
			flatshadeMaterial.doubleSided = true;
			ribbon = new Ribbon3D(flatshadeMaterial, 20, 200);
 
			sphere = new Sphere(flatshadeMaterial, 200, 12, 9);
			scene.addChild(sphere);
 
 
			scene.addChild(ribbon);
 
			startRendering();
 
			stage.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownHandler);
			stage.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
 
		}
 
		private function mouseDownHandler(event:MouseEvent):void
		{
			isOrbiting = true;
		}
 
		private function mouseUpHandler(event:MouseEvent):void
		{
			isOrbiting = false;
		}
 
 
		override protected function onRenderTick(event:Event=null):void
		{
			var ray:Number3D = camera.unproject(viewport.containerSprite.mouseX, viewport.containerSprite.mouseY);
			ray = Number3D.add(ray, camera.position);
 
			var cameraVertex3D:Vertex3D = new Vertex3D(camera.x, camera.y, camera.z);
			var rayVertex3D:Vertex3D = new Vertex3D(ray.x, ray.y, ray.z);
 
			var intersectPoint:Vertex3D = planeToDragOn.getIntersectionLine(cameraVertex3D, rayVertex3D);
 
			if(isOrbiting)
 			{
				cameraYaw += 1;
				cameraYaw %= 360;
 
				camera.orbit(cameraPitch, cameraYaw, true, camera.target);
				var normal:Number3D = new Number3D(-camera.transform.n13, -camera.transform.n23, -camera.transform.n33);
				planeToDragOn.setNormalAndPoint(normal, new Number3D(0, 0, 0));
 			}
 
			ribbon.x += (intersectPoint.x - ribbon.x) * .2;
			ribbon.y += (intersectPoint.y - ribbon.y) * .2;
			ribbon.z += (intersectPoint.z - ribbon.z) * .2;
 
			ribbon.draw();
			super.onRenderTick(event);
		}
	}
}