public static void LoadCache()
{
string cacheTxtFilePath = pathResolver.HashCacheSaveFile;
if (File.Exists(cacheTxtFilePath))
{
string value = File.ReadAllText(cacheTxtFilePath);
StringReader sr = new StringReader(value);
//版本比较
string vString = sr.ReadLine();
bool wrongVer = false;
try
{
Version ver = new Version(vString);
wrongVer = ver.Minor < AssetBundleManager.version.Minor || ver.Major < AssetBundleManager.version.Major;
}
catch (Exception) { wrongVer = true; }
if (wrongVer)
{
return;
}
//读取缓存的信息
while (true)
{
string path = sr.ReadLine();
if (path == null)
{
break;
}
AssetCacheInfo cache = new AssetCacheInfo();
cache.fileHash = sr.ReadLine();
cache.metaHash = sr.ReadLine();
cache.bundleCrc = sr.ReadLine();
int depsCount = Convert.ToInt32(sr.ReadLine());
cache.depNames = new string[depsCount];
for (int i = 0; i < depsCount; i++)
{
cache.depNames[i] = sr.ReadLine();
}
_fileHashOld[path] = cache;
}
}
}
/// <summary>
/// 分析引用关系
/// </summary>
public void Analyze()
{
if (_isAnalyzed)
{
return;
}
_isAnalyzed = true;
#if !UNITY_5
LoadMetaHashIfNecessary();
#endif
_cacheInfo = AssetBundleUtils.GetCacheInfo(assetPath);
_isFileChanged = _cacheInfo == null || !_cacheInfo.fileHash.Equals(GetHash()) || !_cacheInfo.metaHash.Equals(_metaHash);
if (_cacheInfo != null)
{
_bundleCrc = _cacheInfo.bundleCrc;
if (_isFileChanged)
{
Debug.Log("File was changed : " + assetPath);
}
}
Object[] deps = EditorUtility.CollectDependencies(new Object[] { asset });
#if UNITY_5 || UNITY_2017_1_OR_NEWER
List <Object> depList = new List <Object>();
for (int i = 0; i < deps.Length; i++)
{
Object o = deps[i];
//不包含脚本对象
//不包含LightingDataAsset对象
if (o is MonoScript || o is LightingDataAsset)
{
continue;
}
//不包含builtin对象
string path = AssetDatabase.GetAssetPath(o);
if (path.StartsWith("Resources"))
{
continue;
}
depList.Add(o);
}
deps = depList.ToArray();
#else
//提取 resource.builtin
for (int i = 0; i < deps.Length; i++)
{
Object dep = deps[i];
string path = AssetDatabase.GetAssetPath(dep);
if (path.StartsWith("Resources"))
{
AssetTarget builtinAsset = AssetBundleUtils.Load(dep);
this.AddDependParent(builtinAsset);
builtinAsset.Analyze();
}
}
#endif
//类似sql语句 查找筛选
var res = from s in deps
let obj = AssetDatabase.GetAssetPath(s)
select obj;
var paths = res.Distinct().ToArray();// 通过使用的默认相等比较器对值进行比较从序列返回非重复元素。
for (int i = 0; i < paths.Length; i++)
{
if (File.Exists(paths[i]) == false)
{
//Debug.Log("invalid:" + paths[i]);
continue;
}
FileInfo fi = new FileInfo(paths[i]);
AssetTarget target = AssetBundleUtils.Load(fi);
if (target == null)
{
continue;
}
this.AddDependParent(target);
target.Analyze();
}
}