@Override
	public Integer getNodeId(Integer playerId) {
		Integer Position = null;
		// loops through detectives and there is an ID match - returns the
		// detective position
		for (Detective a : listDetectives) {
			if (a.getID().equals(playerId)) {
				Position = a.getPosition();
			}
		}
		// loops through Mr X's and if there is an ID match - returns the Mr X
		// position
		for (MrX a : listMrX) {
			if (a.getID().equals(playerId)) {
				Position = a.getPosition();
			}
		}
		return Position;
	}