Math and (Quasi) Physics in Action Script 3


package {
  import flash.display.*;
  import flash.events.*;
  import flash.geom.*;
  import org.papervision3d.cameras.*;
  import org.papervision3d.materials.shadematerials.*;
  import org.papervision3d.materials.special.*;
  import org.papervision3d.materials.*;
  import org.papervision3d.materials.utils.*;
  import org.papervision3d.objects.*;
  import org.papervision3d.objects.primitives.*;
  import org.papervision3d.render.*;
  import org.papervision3d.scenes.*;
  import org.papervision3d.view.*;
  import org.papervision3d.lights.*;
  
  public class Main extends Sprite {
    private var scene:Scene3D;
    private var camera:Camera3D;
    private var viewport:Viewport3D;
    private var renderer:BasicRenderEngine;
    private var objects:Array = [];
    private var materials:Array = [];
    private var light:PointLight3D;

    public function Main() {
      //bg
      graphics.beginFill(0x000000);
      graphics.drawRect(0,0,500,500);
      scene = new Scene3D();
      //camera
      camera = new Camera3D();
      camera.x = camera.y = 0;
      camera.z = -1000;
      camera.focus = 100;
      camera.zoom = 10;
      //vieport
      viewport = new Viewport3D(500,500);
      addChild(viewport);

      //renderer
      renderer = new BasicRenderEngine();

      //light
      light = new PointLight3D();
      light.x = 100;
      light.y = 100;
      light.z = -100;
      scene.addChild(light);

      // create materials
      
      var bmp:BitmapData = new BitmapData(100,100);
      bmp.noise(0);
      var bmp2:BitmapData = new BitmapData(100,100);
      bmp2.perlinNoise(20,20,3,0,true,true,3);
      
      materials = [
      new FlatShadeMaterial(light, 0xff0000, 0x550000),
      new CellMaterial(light, 0xff0000, 0x550000,5),
      new CellMaterial(light, 0xffffff, 0x000000,15),
      new EnvMapMaterial(light, bmp,bmp2, 0x777777),
      new GouraudMaterial(light, 0xffffff, 0x555555,15)  ,
      new PhongMaterial(light, 0x00a0ff, 0x005088,15),
      new ColorMaterial(0x339966),
      new WireframeMaterial(0x0000ff),
      new BitmapMaterial(bmp2),
      new MovieMaterial(this,true,true,false,new Rectangle(0,0,300,300))
      ];
      
      //create objects
      var cnt:uint = 0;
      var mList:MaterialsList;
      var object:DisplayObject3D;
      for (var j:uint = 0; j <= 300; j += 100) {
        for (var i:uint = 0; i <= 300; i += 100) {
          cnt ++;
          mList= new MaterialsList();
          mList.addMaterial(materials[cnt % materials.length],"all");
          object=new Cube(mList,50,50,50,2,2,2);
          object.x=i - 150;
          object.y=j - 150;
          objects.push(object);
          scene.addChild(object);
        }
      }
      stage.addEventListener(Event.ENTER_FRAME, drawPapervision3d);
    }

    private function drawPapervision3d(e:Event):void {
      for (var i:uint = 0; i < objects.length; i ++) {
        objects[i].rotationX+=1;
        objects[i].rotationY+=1;
        objects[i].rotationZ+=1;
      }
      renderer.renderScene(scene, camera, viewport);
    }

  }
}