import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.geometry.Box;
import com.sun.j3d.utils.geometry.Cylinder;
class Pieza1{
  BranchGroup bg;
  Pieza1(Appearance pintura){
    bg=new BranchGroup();
    Transform3D ro=new Transform3D();
    Transform3D tr=new Transform3D();
    TransformGroup tg1=new TransformGroup();
    TransformGroup tg2=new TransformGroup();
    TransformGroup tg3=new TransformGroup();
    TransformGroup tg4=new TransformGroup();
    TransformGroup tg5=new TransformGroup();

    Cylinder rueda1=new Cylinder(0.05f,0.5f,Cylinder.GENERATE_NORMALS,pintura);
    Cylinder rueda2=new Cylinder(0.05f,0.5f,Cylinder.GENERATE_NORMALS,pintura);
    Box piso=new Box(0.4f,0.25f,0.05f,Box.GENERATE_NORMALS,pintura);
    Box pie=new Box(0.15f,0.15f,0.4f,Box.GENERATE_NORMALS,pintura);

    tr.set(new Vector3f(-0.25f,0.0f,0.0f));
    tg1.setTransform(tr);
    tg1.addChild(rueda1);
    tr.set(new Vector3f(0.25f,0.0f,0.0f));
    tg2.setTransform(tr);
    tg2.addChild(rueda2);
//    ro.rotX(Math.PI/2.0);
    tr.set(new Vector3f(0.0f,0.0f,-0.05f));
//    tr.mul(ro);
    tg3.setTransform(tr);
    tg3.addChild(tg1);
    tg3.addChild(tg2);
    tr.set(new Vector3f(0.0f,0.0f,0.05f));
    tg4.setTransform(tr);
    tg4.addChild(piso);
    tr.set(new Vector3f(0.0f,0.0f,0.45f));
    tg5.setTransform(tr);
    tg5.addChild(pie);
    bg.addChild(tg5);
    bg.addChild(tg4);
    bg.addChild(tg3);
    bg.compile();
  }
  public BranchGroup getBG(){
    return bg;
  }
}