Save int value to .txt file

How do I save an int variable to a text file, so when I close and open my game later my script can assess it.

If you’re using C# you could also look at:

System.IO.File.WriteAllText(path, value)
System.IO.File.ReadAllText(path)

…but you probably want something like this to serialize your object first:

   public string SerializeXml<T>(T value) {
      if(value == null) {
        return null;
      }

      XmlSerializer serializer = new XmlSerializer(typeof(T));

      XmlWriterSettings settings = new XmlWriterSettings();
      settings.Encoding = new UnicodeEncoding(false, false); // no BOM in a .NET string
      settings.Indent = false;
      settings.OmitXmlDeclaration = false;

      using(StringWriter textWriter = new StringWriter()) {
        using(XmlWriter xmlWriter = XmlWriter.Create(textWriter, settings)) {
          serializer.Serialize(xmlWriter, value);
        }
        return textWriter.ToString();
      }
    }

    public T DeserializeXml<T>(string xml) {
      if(string.IsNullOrEmpty(xml)) {
        return default(T);
      }

      XmlSerializer serializer = new XmlSerializer(typeof(T));

      XmlReaderSettings settings = new XmlReaderSettings();

      using(StringReader textReader = new StringReader(xml)) {
        using(XmlReader xmlReader = XmlReader.Create(textReader, settings)) {
          return (T) serializer.Deserialize(xmlReader);
        }
      }
    }