@Override
    public void write(JmeExporter ex) throws IOException {
        super.write(ex);
        OutputCapsule oc = ex.getCapsule(this);
        oc.write(enabled, "enabled", true);
        oc.write(applyLocal, "applyLocalPhysics", false);
        oc.write(spatial, "spatial", null);
    }
Serialize this control, for example when saving to a J3O file.

@param ex exporter (not null)
@throws IOException from exporter
jme3-jbullet/src/main/java/com/jme3/bullet/control/GhostControl.java