package {
  import flash.display.*;
  import flash.events.*;
  import flash.filters.*;

  import org.papervision3d.materials.*;
  import org.papervision3d.objects.*;
  import org.papervision3d.objects.primitives.*;
  import org.papervision3d.view.BasicView;
  import org.papervision3d.core.proto.*;
  import org.papervision3d.core.math.*;
  import org.papervision3d.objects.DisplayObject3D;

  import gs.TweenMax;
  import gs.easing.*;

  public class Main extends BasicView {
    private var dpObj3D:DisplayObject3D;
    private var bmpSkyMaterial:BitmapMaterial;
    private var cameraTarget:DisplayObject3D=DisplayObject3D.ZERO;
    private var cameraPitch:Number=0;
    private var cameraYaw:Number=0;
    private var curcp:Number=0;
    private var curcy:Number=0;
    public function Main():void {
      stage.quality=StageQuality.LOW;
      init();
    }
    private function init():void {
      dpObj3D=new DisplayObject3D ;
      var bmpSky:Bitmap=new Bitmap(new Sky(2000,1583));
      bmpSkyMaterial=new BitmapMaterial(bmpSky.bitmapData,false);
      var sphere=new Sphere(bmpSkyMaterial,1600,40,40);
      sphere.scaleX=-1;
      dpObj3D.addChild(sphere);
      dpObj3D.y=-150;
      scene.addChild(dpObj3D);
      camera.zoom=50;
      camera.focus=20;
      startRendering();
    }
    protected override function onRenderTick(event:Event=null):void {
      cameraPitch = 90+(mouseY - stage.stageHeight/2)/stage.stageHeight*2*90*-1;
      cameraYaw = (mouseX - stage.stageWidth/2)/stage.stageWidth*720*-1;
      curcp+= (cameraPitch - curcp) / 5;
      curcy+= (cameraYaw - curcy) / 5;
      camera.orbit(curcp,curcy,true,cameraTarget);
      super.onRenderTick(event);
    }
  }
}