> From: Laurent Perato <[EMAIL PROTECTED]>
>
> I want to add (or remove) a behavior in my scene graph AT ANY TIME
> I mean : NOT JUST before the scene graph become alive or compiled.
To add/remove a subgraph at runtime you need to put the stuff to be
added/removed into a BranchGroup and set the capability bits on the parent and
child to allow the runtime changes:
Behavior yourBehavior; // this is what you want to remove
Group parent; // this is where you want to add/remove
BranchGroup removableBehavior = new BranchGroup();
removeableBehavior.addChild(yourBehavior);
removeableBehavior.setCapability(BranchGroup.ALLOW_DETACH);
parent.setCapability(Group.ALLOW_CHILDREN_READ);
parent.setCapability(Group.ALLOW_CHILDREN_WRITE);
parent.setCapability(Group.ALLOW_CHILDREN_EXTEND);
parent.addChild(removeableBehavior);
With this, you can now add/remove after the scene graph is live. Call
removableBehavior.detach() to remove the behavior from the scene and
parent.addChild(removeableBehavior) to add it.
Note: you may not need to add/remove the behavior from the graph. In many cases
you can use the setEnable() method to turn the behavior on and off.
Doug Gehringer
Sun Microsystems
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