Is there something like a switch node but uses a bitset?

Not exactly sure how to ask this.  I have 10 sibling nodes, that I would like to selectively render.  Suppose I have 10 boxes I can throw by pressing the spacebar.  After 10 seconds, I would like to have the box disappear and available to throw again.  Do I repeatedly attach/detach from some parent node?

There is this class taken from the bsp loader by  renanse - seems to give you the basics of what you are looking for…


package jmex.bsp.quake3;

import com.jme.renderer.Renderer;
import com.jme.scene.*;

import java.util.BitSet;

/**
 * <code>BSwitchNode</code> defines a node that maintains a set of active children
 */
public class BitSwitchNode extends Node {
   private static final long serialVersionUID = 1L;

   protected BitSet bitSet;

   /**
    * Constructor instantiates a new <code>BitSwitchNode</code> object. The name
    * of the node is provided during construction.
    *
    * @param name the name of the node.
    * @param bitSet contains which children to render. Length must match number of children.
    */
   public BitSwitchNode(String name, BitSet bitSet) {
      super(name);
      this.bitSet = bitSet;
   }
   
   
   /**
    * Draws the children that is enabled by the bitset.
    * This function should be called internally only.
    *
    * @param r
    *            The render system to draw the child.
    */
   public void draw(Renderer r) {
      for (int i=getQuantity(); --i>=0; ) {
            if (bitSet.get(i)) {
                getChild(i).onDraw(r);
            }
      }
   }
}