/// <summary>
/// 自定义LoadTask。当非实例化资源（非GameObject，如Material，Texture，TextAsset等）使用完毕后,需要主动调用Destroy去释放资源
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="task"></param>
public static void LoadAsset <T>(IAssetLoadTask <T> task) where T : UnityEngine.Object
{
if (task == null)
{
return;
}
Instance.StartCoroutine(Instance.LoadAssetAsync(task));
}
private IEnumerator LoadAssetAsync <T>(IAssetLoadTask <T> task) where T : UnityEngine.Object
{
if (mStatus != LoadStatus.Done)
{
yield return(BeginInitialize());
}
BundleAsset bundle = GetOrCreateBundle <BundleAsset>(task.bundleName);
yield return(bundle.LoadAssetAsync(task));
}
/// <summary>
/// 自定义LoadTask。当非实例化资源（非GameObject，如Material，Texture，TextAsset等）使用完毕后,需要主动调用Destroy去释放资源
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="task"></param>
public static void LoadAsset <T>(IAssetLoadTask <T> task) where T : UnityEngine.Object
{
if (task == null)
{
Debug.LogError("The param task can't be null!");
return;
}
if (string.IsNullOrEmpty(task.bundleName))
{
Debug.LogError("BundlName can't be null!");
return;
}
if (string.IsNullOrEmpty(task.assetName))
{
Debug.LogError("AssetName can't be null!");
return;
}
Instance.StartCoroutine(Instance.LoadAssetAsync(task));
}
public IEnumerator LoadAssetAsync <T>(IAssetLoadTask <T> task) where T : UnityEngine.Object
{
if (task == null || task.isCancel)
{
yield break;
}
Asset <T> assetT = null;
Object asset = null;
string assetName = task.assetName;
if (mCacheAssetDic.TryGetValue(assetName, out List <IAsset> list))
{
for (int i = list.Count - 1; i >= 0; --i)
{
if (list[i] == null || list[i].destroyed)
{
list.RemoveAt(i); continue;
}
var t = list[i] as Asset <T>;
if (t != null)
{
list.RemoveAt(i);
assetT = t;
break;
}
}
}
if (assetT != null)
{
task.OnCompleted(assetT);
}
else
{
#if UNITY_EDITOR
if (AssetPath.mode == AssetMode.Editor)
{
mAssetDic.TryGetValue(assetName, out asset);
if (asset == null)
{
asset = UnityEditor.AssetDatabase.LoadAssetAtPath <Object>(assetName);
if (asset)
{
mAssetDic.Add(assetName, asset);
}
}
}
else
#endif
{
mLoadTasks.Add(task);
//不是Resources资源
if (bundle == null)
{
if (status == LoadStatus.None && task.isCancel == false)
{
yield return(LoadAsync());
}
else
{
yield return(new WaitUntil(() => status == LoadStatus.Done || task.isCancel));
}
}
if (mAssetDic.ContainsKey(assetName) == false)
{
if (bundle != null && task.isCancel == false)
{
var request = bundle.LoadAssetAsync(assetName);
yield return(request);
if (request.asset != null && mAssetDic.ContainsKey(assetName) == false)
{
asset = request.asset;
mAssetDic.Add(assetName, asset);
}
}
}
}
if (mAssetDic.ContainsKey(assetName) == false && task.isCancel == false)
{
///尝试从Resources加载
string path = AssetPath.GetResourcePath(assetName);
ResourceRequest request = Resources.LoadAsync(path);
yield return(request);
if (request.asset != null && mAssetDic.ContainsKey(assetName) == false)
{
asset = request.asset;
mAssetDic.Add(assetName, asset);
mResourceAssets.Add(assetName);
}
}
if (asset == null)
{
mAssetDic.TryGetValue(assetName, out asset);
}
if (asset && task.isCancel == false)
{
if (typeof(T) == typeof(GameObject))
{
var go = Object.Instantiate(asset) as GameObject;
assetT = new Asset <T>(assetName, this, asset, go as T);
}
else
{
assetT = new Asset <T>(assetName, this, asset, asset as T);
}
}
mLoadTasks.Remove(task);
if (task.isCancel == false)
{
task.OnCompleted(assetT);
}
else
{
RemoveReference();
}
}
}
