public void UnloadAsset(string rAssetbundleName)
{
ABLoadEntry rAssetLoadEntry = null;
if (!ABLoaderVersion.Instance.TryGetValue(rAssetbundleName, out rAssetLoadEntry))
{
Debug.LogErrorFormat("Can not find assetbundle: -- {0}", rAssetbundleName);
return;
}
// 递归遍历该资源的依赖项
for (int i = 0; i < rAssetLoadEntry.ABDependNames.Length; i++)
{
UnloadAsset(rAssetLoadEntry.ABDependNames[i]);
}
// 引用计数减1
rAssetLoadEntry.RefCount--;
//确定该Info的引用计数是否为0，如果为0则删除它
if (rAssetLoadEntry.RefCount == 0)
{
if (rAssetLoadEntry.CacheAsset != null)
{
Debug.LogFormat("-- Real unload assetbundle: {0}", rAssetbundleName);
rAssetLoadEntry.CacheAsset.Unload(true);
rAssetLoadEntry.CacheAsset = null;
}
rAssetLoadEntry.IsLoadCompleted = false;
rAssetLoadEntry.IsLoading = false;
}
}
private async Task LoadAsset_Async(LoaderRequest rRequest)
{
ABLoadEntry rAssetLoadEntry = null;
if (!ABLoaderVersion.Instance.TryGetValue(rRequest.Path, out rAssetLoadEntry))
{
Debug.LogErrorFormat("Can not find assetbundle: -- {0}", rRequest.Path);
rRequest.Asset = null;
return;
}
//引用计数加1
rAssetLoadEntry.RefCount++;
// 确认未加载完成并且正在被加载、一直等待其加载完成
while (rAssetLoadEntry.IsLoading && !rAssetLoadEntry.IsLoadCompleted)
{
await new WaitForEndOfFrame();
}
// 如果该资源加载完成了
if (!rAssetLoadEntry.IsLoading && rAssetLoadEntry.IsLoadCompleted)
{
// 从缓存的Assetbundle里面加载资源
await LoadAssetObject(rRequest, rAssetLoadEntry, false);
return;
}
// 开始加载资源依赖项
if (rAssetLoadEntry.ABDependNames != null && !rRequest.IsSimulate)
{
for (int i = rAssetLoadEntry.ABDependNames.Length - 1; i >= 0; i--)
{
string rDependABPath = rAssetLoadEntry.ABDependNames[i];
string rDependABName = rDependABPath;
LoaderRequest rDependAssetRequest = new LoaderRequest(rDependABName, "", false, rRequest.IsSimulate, false);
await LoadAsset_Async(rDependAssetRequest);
}
}
//开始加载当前的资源包
rAssetLoadEntry.IsLoading = true;
rAssetLoadEntry.IsLoadCompleted = false;
// 真正的从AB包里面加载资源
await LoadAssetObject(rRequest, rAssetLoadEntry, true);
rAssetLoadEntry.IsLoading = false;
rAssetLoadEntry.IsLoadCompleted = true;
}
public void AddEntry(LoaderSpace rLoaderSpace, ABVersionEntry rAVEntry)
{
ABLoadEntry rABLoadInfo = new ABLoadEntry();
rABLoadInfo.ABPath = GetABPath_With_Space(rLoaderSpace, rAVEntry.Name);
rABLoadInfo.ABName = rAVEntry.Name;
List <string> rDependABs = new List <string>(rAVEntry.Dependencies);
rABLoadInfo.ABDependNames = rDependABs.ToArray();
rABLoadInfo.IsLoading = false;
rABLoadInfo.IsLoadCompleted = false;
rABLoadInfo.CacheAsset = null;
rABLoadInfo.RefCount = 0;
this.Entries.Add(rAVEntry.Name, rABLoadInfo);
}
private IEnumerator LoadAsset_Async(LoaderRequest rRequest)
{
ABLoadEntry rAssetLoadEntry = null;
if (!ABLoaderVersion.Instance.TryGetValue(rRequest.Path, out rAssetLoadEntry))
{
Debug.LogErrorFormat("Can not find assetbundle: -- {0}", rRequest.Path);
rRequest.Asset = null;
yield break;
}
// 确认该资源是否已经加载完成或者正在被加载
while (rAssetLoadEntry.IsLoading && !rAssetLoadEntry.IsLoadCompleted)
{
yield return(0);
}
//引用计数加1
rAssetLoadEntry.RefCount++;
// 开始加载资源依赖项
if (rAssetLoadEntry.ABDependNames != null && !rRequest.IsSimulate)
{
for (int i = rAssetLoadEntry.ABDependNames.Length - 1; i >= 0; i--)
{
string rDependABPath = rAssetLoadEntry.ABDependNames[i];
string rDependABName = rDependABPath;
LoaderRequest rDependAssetRequest = new LoaderRequest(rDependABName, "", false, rRequest.IsSimulate);
yield return(rDependAssetRequest.Start(LoadAsset_Async(rDependAssetRequest)));
}
}
// 如果该资源加载完成了
if (!rAssetLoadEntry.IsLoading && rAssetLoadEntry.IsLoadCompleted)
{
if (!string.IsNullOrEmpty(rRequest.AssetName))
{
AssetBundleRequest rABRequest = rAssetLoadEntry.CacheAsset.LoadAssetAsync(rRequest.AssetName);
yield return(rABRequest);
rRequest.Asset = rABRequest.asset;
}
yield break;
}
//开始加载当前的资源包
rAssetLoadEntry.IsLoading = true;
rAssetLoadEntry.IsLoadCompleted = false;
string rAssetLoadUrl = rAssetLoadEntry.ABPath;
if (rRequest.IsSimulate)
{
Debug.Log("---Simulate Load ab: " + rAssetLoadUrl);
#if UNITY_EDITOR
if (!string.IsNullOrEmpty(rRequest.AssetName) && !rRequest.IsScene)
{
string[] rAssetPaths = UnityEditor.AssetDatabase.GetAssetPathsFromAssetBundleAndAssetName(rAssetLoadEntry.ABName, rRequest.AssetName);
if (rAssetPaths.Length == 0)
{
Debug.LogError("There is no asset with name \"" + rRequest.AssetName + "\" in " + rAssetLoadEntry.ABName);
yield break;
}
Object rTargetAsset = UnityEditor.AssetDatabase.LoadMainAssetAtPath(rAssetPaths[0]);
rRequest.Asset = rTargetAsset;
}
#endif
}
else
{
Debug.Log("---Real Load ab: " + rAssetLoadUrl);
var rAssetbundleCreateRequest = AssetBundle.LoadFromFileAsync(rAssetLoadUrl);
yield return(rAssetbundleCreateRequest);
// 如果是一个直接的资源，将资源的对象取出来
rAssetLoadEntry.CacheAsset = rAssetbundleCreateRequest.assetBundle;
// 加载Object
if (!string.IsNullOrEmpty(rRequest.AssetName))
{
if (!rRequest.IsScene)
{
AssetBundleRequest rABRequest = rAssetLoadEntry.CacheAsset.LoadAssetAsync(rRequest.AssetName);
yield return(rABRequest);
rRequest.Asset = rABRequest.asset;
}
else
{
rAssetLoadEntry.CacheAsset.GetAllScenePaths();
}
}
}
rAssetLoadEntry.IsLoading = false;
rAssetLoadEntry.IsLoadCompleted = true;
}
private async Task LoadAssetObject(LoaderRequest rRequest, ABLoadEntry rAssetLoadEntry, bool bRealLoad)
{
string rAssetLoadUrl = rAssetLoadEntry.ABPath;
if (rRequest.IsSimulate)
{
Debug.Log("---Simulate Load ab: " + rAssetLoadUrl);
#if UNITY_EDITOR
if (!string.IsNullOrEmpty(rRequest.AssetName) && !rRequest.IsScene)
{
if (!rRequest.IsLoadAllAssets)
{
string[] rAssetPaths = UnityEditor.AssetDatabase.GetAssetPathsFromAssetBundleAndAssetName(rAssetLoadEntry.ABName, rRequest.AssetName);
if (rAssetPaths.Length == 0)
{
Debug.LogError("There is no asset with name \"" + rRequest.AssetName + "\" in " + rAssetLoadEntry.ABName);
return;
}
Object rTargetAsset = UnityEditor.AssetDatabase.LoadMainAssetAtPath(rAssetPaths[0]);
rRequest.Asset = rTargetAsset;
}
else
{
string[] rAssetPaths = UnityEditor.AssetDatabase.GetAssetPathsFromAssetBundle(rAssetLoadEntry.ABName);
if (rAssetPaths.Length == 0)
{
Debug.LogError("There is no asset with name \"" + rRequest.AssetName + "\" in " + rAssetLoadEntry.ABName);
return;
}
rRequest.AllAssets = new Object[rAssetPaths.Length];
for (int i = 0; i < rAssetPaths.Length; i++)
{
Object rAssetObj = UnityEditor.AssetDatabase.LoadAssetAtPath(rAssetPaths[i], typeof(Object));
if (rAssetObj != null)
{
rRequest.AllAssets[i] = rAssetObj;
}
}
}
}
#endif
}
else
{
if (bRealLoad)
{
Debug.Log("---Real Load ab: " + rAssetLoadUrl);
// 如果是一个直接的资源，将资源的对象取出来
rAssetLoadEntry.CacheAsset = await AssetBundle.LoadFromFileAsync(rAssetLoadUrl);
}
else
{
Debug.Log("---Load asset: " + rAssetLoadUrl);
}
// 加载Object
if (!string.IsNullOrEmpty(rRequest.AssetName))
{
if (!rRequest.IsScene)
{
if (!rRequest.IsLoadAllAssets)
{
rRequest.Asset = await rAssetLoadEntry.CacheAsset.LoadAssetAsync(rRequest.AssetName);
}
else
{
await LoadAllAssets_ByAssetbundle(rRequest, rAssetLoadEntry.CacheAsset);
}
}
else
{
rAssetLoadEntry.CacheAsset.GetAllScenePaths();
}
}
}
}
public bool TryGetValue(string rABName, out ABLoadEntry rABLoadEntry)
{
return(this.Entries.TryGetValue(rABName, out rABLoadEntry));
}