debugObject.addSignal();
debugObject.addEntity();
	public boolean propogateNextSignal(Debug debugObject) throws LemRuntimeException {		if ( signalQueue.size() > 0 ) {			Signal s = (Signal) signalQueue.remove( 0 );			for ( Iterator i = instances.iterator(); i.hasNext(); ) {				Instance in = ( Instance ) i.next();				in.addSignal( s );				debugObject.addSignal();			}			debugObject.delSignal();			return true;		}		return false;	}