64 lines
2.1 KiB
C#
64 lines
2.1 KiB
C#
|
using System.IO;
|
|||
|
|
using UnityEngine;
|
|||
|
|
|
|||
|
|
namespace ES3Internal
|
|||
|
|
{
|
|||
|
|
internal class ES3PlayerPrefsStream : MemoryStream
|
|||
|
|
{
|
|||
|
|
private string path;
|
|||
|
|
private bool append;
|
|||
|
|
private bool isWriteStream = false;
|
|||
|
|
private bool isDisposed = false;
|
|||
|
|
|
|||
|
|
// This constructor should be used for read streams only.
|
|||
|
|
public ES3PlayerPrefsStream(string path) : base(GetData(path,false))
|
|||
|
|
{
|
|||
|
|
this.path = path;
|
|||
|
|
this.append = false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// This constructor should be used for write streams only.
|
|||
|
|
public ES3PlayerPrefsStream(string path, int bufferSize, bool append=false) : base(bufferSize)
|
|||
|
|
{
|
|||
|
|
this.path = path;
|
|||
|
|
this.append = append;
|
|||
|
|
this.isWriteStream = true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static byte[] GetData(string path, bool isWriteStream)
|
|||
|
|
{
|
|||
|
|
if(!PlayerPrefs.HasKey(path))
|
|||
|
|
throw new FileNotFoundException("File \""+path+"\" could not be found in PlayerPrefs");
|
|||
|
|
return System.Convert.FromBase64String(PlayerPrefs.GetString(path));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
protected override void Dispose (bool disposing)
|
|||
|
|
{
|
|||
|
|
if(isDisposed)
|
|||
|
|
return;
|
|||
|
|
isDisposed = true;
|
|||
|
|
if(isWriteStream && this.Length > 0)
|
|||
|
|
{
|
|||
|
|
if (append)
|
|||
|
|
{
|
|||
|
|
// Convert data back to bytes before appending, as appending Base-64 strings directly can corrupt the data.
|
|||
|
|
var sourceBytes = System.Convert.FromBase64String(PlayerPrefs.GetString(path));
|
|||
|
|
var appendBytes = this.ToArray();
|
|||
|
|
var finalBytes = new byte[sourceBytes.Length + appendBytes.Length];
|
|||
|
|
System.Buffer.BlockCopy(sourceBytes, 0, finalBytes, 0, sourceBytes.Length);
|
|||
|
|
System.Buffer.BlockCopy(appendBytes, 0, finalBytes, sourceBytes.Length, appendBytes.Length);
|
|||
|
|
|
|||
|
|
PlayerPrefs.SetString(path, System.Convert.ToBase64String(finalBytes));
|
|||
|
|
|
|||
|
|
PlayerPrefs.Save();
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
PlayerPrefs.SetString(path + ES3IO.temporaryFileSuffix, System.Convert.ToBase64String(this.ToArray()));
|
|||
|
|
// Save the timestamp to a separate key.
|
|||
|
|
PlayerPrefs.SetString("timestamp_" + path, System.DateTime.UtcNow.Ticks.ToString());
|
|||
|
|
}
|
|||
|
|
base.Dispose(disposing);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|