protected Direction checkForDirt(Creature c){
		Sensor s = c.getSensor();
		for (Direction d : Direction.values()){
			int value = (int) s.getSense(d.name() + DirtBasedAgentSenseConfig.TYPE_SUFFIX).getValue();
			if (value == Environment.DIRT){
				return d;
			}
		}
		return null;
	}