/// <summary>
/// Check minecraft assets before launch
/// </summary>
/// <returns>
/// hasValidIndex: Indicates whether a valid index file exists
/// missingAssets: List of missing assets, will be null if 'hasValidIndex' is false.
/// </returns>
public (bool hasValidIndex, List <MinecraftAsset> missingAssets) CheckAssets(KMCCC.Launcher.Version version)
{
string indexPath = string.Format(@"{0}\assets\indexes\{1}.json", Core.GameRootPath, version.Assets);
bool hasIndex = Core.CheckFileHash(indexPath, version.AssetsIndex.SHA1, new SHA1CryptoServiceProvider());
if (!hasIndex)
{
return(false, null);
}
//Read and parse asset index
string json = File.ReadAllText(indexPath);
JObject rootObj = null;
try
{
rootObj = JObject.Parse(json)["objects"]?.ToObject <JObject>();
}
catch (JsonException)
{
return(false, null);
}
List <MinecraftAsset> ret = new List <MinecraftAsset>();
if (rootObj == null)
{
//Some specific versions may not contain assets files
return(true, ret);
}
var sha1 = new SHA1CryptoServiceProvider();
foreach (KeyValuePair <string, JToken> prop in rootObj)
{
string _hash = prop.Value["hash"].ToString();
if (string.IsNullOrWhiteSpace(_hash))
{
continue;
}
int _size;
int.TryParse(prop.Value["size"].ToString(), out _size);
MinecraftAsset asset = new MinecraftAsset
{
Hash = _hash,
Size = _size
};
if (!Core.CheckFileHash(string.Format(@"{0}\{1}", Core.GameRootPath, asset.GetPath()), asset.Hash, sha1))
{
ret.Add(asset);
}
}
return(true, ret);
}