public String getHelpText(HelpType command) throws MemorygameException {
        String helpText = "";
        switch (command) {
            case OBJECTIVE:
            case ONE_PERSON_GAME:
            case TWO_PERSON_GAME:
            
                helpText = command.getHelpText();
                break;
            default:
                throw new MemorygameException(ErrorType.ERROR3 .getMessage());
        }

        return helpText;
    }