package com.rimv.PV3DUtils
{
	import flash.display.*;
	import flash.events.*;
	import flash.utils.Timer;
	import org.papervision3d.cameras.*;
	import org.papervision3d.scenes.Scene3D;
    import org.papervision3d.render.BasicRenderEngine;
	import org.papervision3d.view.Viewport3D;
	import org.papervision3d.objects.DisplayObject3D;

	public class PV3DEnvironment extends Sprite
	{

		// pv3d parameters
		private var _scene:Scene3D;
		private var _viewport:Viewport3D;
		private var _renderer:BasicRenderEngine;
		private var _camera:Camera3D;

		// render manager
		private var rManager:Timer;

		// get function
		public function get scene():Scene3D
		{
			return _scene;
		}

		public function get viewport():Viewport3D
		{
			return _viewport;
		}

		public function get renderer():BasicRenderEngine
		{
			return _renderer;
		}

		public function get camera():Camera3D
		{
			return _camera;
		}

		// main
		public function PV3DEnvironment(vWidth:Number = 640, vHeight:Number = 480, scaleToStage:Boolean = false, interactive:Boolean = true)
		{
			// initialize 3d parameters
			_viewport = new Viewport3D(vWidth, vHeight, scaleToStage, interactive);
			_scene = new Scene3D();
			_renderer = new BasicRenderEngine();
			_camera = new Camera3D(60);
			_camera.target = DisplayObject3D.ZERO;
			_camera.z = -(_camera.zoom * _camera.focus);

			// setup render manager
			rManager = new Timer(1000, 1);
			rManager.addEventListener(TimerEvent.TIMER_COMPLETE, stopRendering, false, 0, true);
		}

		// render manager function

		public function renderManager(duration:Number):void
		{
			rManager.stop();
			rManager.reset();
			rManager.delay = duration * 1000;
			startRendering();
			rManager.start();
		}

		public function startRendering():void
		{
			addEventListener(Event.ENTER_FRAME, rendering, false, 0, true);
		}

		public function stopRendering(e:TimerEvent):void
		{
			removeEventListener(Event.ENTER_FRAME, rendering);
		}

		private function rendering(e:Event):void
		{
			_renderer.renderScene(_scene, _camera, _viewport);
		}



	}

}