final String modelName = modelObject.getName();
try {
//scriptConsole.addVariable(modelName, model);
modelObject.addPropertyChangeListener(Property.REMOVED_FROM_WORLD,
new WorldObject.Listener() {
public void propertyChanged(Property event) {
scriptConsole.removeVariable(modelName);
modelObject.removePropertyChangeListener(Property.REMOVED_FROM_WORLD,
this);