private void AssetCompleteCallback(KTAssetLoader assetLoader)
{
if (assetLoader.loaderType == KTAssetLoader.LoaderType.Asset)
{
m_assetNameToWeakPtr.Add(assetLoader.requestAssetName, new WeakReference((assetLoader.assetRequest as AssetBundleRequest).asset));
}
if (assetLoader.cacheType == BundleCacheType.None) //请求的主包需要销毁,这种包不会被其他包和资源引用，只会引用其他包
{
if (m_bundleLoaded.ContainsKey(assetLoader.requestBundleName))
{
m_bundleLoaded[assetLoader.requestBundleName].Release(false);
m_bundleLoaded.Remove(assetLoader.requestBundleName);
//DecreaseRef(assetLoader.requestBundleName);这种情况不减引用计数，在回收资源时再去减引用计数
}
}
assetLoader.Release();
m_assetLoading.Remove(assetLoader.requestAssetName);
}
/// <summary>
/// 加载场景
/// </summary>
/// <param name="assetName"></param>
/// <param name="completeCallback"></param>
/// <param name="loadMode"></param>
/// <param name="cacheType">可以选三种模式</param>
/// <param name="cacheTimeout"></param>
public void LoadScene(string assetName, Action <string> completeCallback = null, LoadSceneMode loadMode = LoadSceneMode.Additive, BundleCacheType cacheType = BundleCacheType.None, float cacheTimeout = 5)
{
if (!CheckInited())
{
completeCallback?.Invoke("");
return;
}
var requestBundleName = m_assetNameToBundleNameMap[assetName];
if (string.IsNullOrEmpty(requestBundleName))
{
completeCallback?.Invoke("");
Debug.LogErrorFormat("Asset Info {0} Not Found", assetName);
return;
}
if (m_assetLoading.ContainsKey(assetName)) //场景不允许请求重复
{
completeCallback?.Invoke("");
Debug.LogErrorFormat("Request Scene {0} Repeated", assetName);
return;
}
IncreaseRef(requestBundleName);
var assetLoader = new KTAssetLoader()
{
loaderType = KTAssetLoader.LoaderType.Scene,
requestAssetName = assetName,
requestBundleName = requestBundleName,
cacheType = cacheType,
cacheTimeout = cacheTimeout,
dependentBundleNames = m_manifest.GetAllDependencies(requestBundleName).ToList(),
sceneRequest = null,
loadMode = loadMode,
sceneCompleteCallback = completeCallback,
assetCallbackForManager = AssetCompleteCallback
};
m_assetLoading.Add(assetName, assetLoader);
for (int i = 0, j = assetLoader.dependentBundleNames.Count; i < j; ++i)
{
var bundleName = assetLoader.dependentBundleNames[i];
if (m_bundleLoaded.ContainsKey(bundleName))
{
continue;
}
if (m_bundleLoading.ContainsKey(bundleName))
{
m_bundleLoading[bundleName].Subscribe(assetLoader);
}
else
{
var bundleLoader = assetLoader.CreateBundleLoader(bundleName, BundleCompleteCallback);
m_bundleLoading.Add(bundleName, bundleLoader);
bundleLoader.BeginLoad();
}
}
}
/// <summary>
/// 加载资源
/// </summary>
/// <param name="assetName"></param>
/// <param name="completeCallback"></param>
/// <param name="cacheType"></param>
/// <param name="cacheTimeout"></param>
public void LoadAsset(string assetName, Action <string, UnityEngine.Object> completeCallback = null, BundleCacheType cacheType = BundleCacheType.TimeoutCache, float cacheTimeout = 5)
{
if (!CheckInited())
{
completeCallback?.Invoke("", null);
return;
}
var requestBundleName = m_assetNameToBundleNameMap[assetName];
if (string.IsNullOrEmpty(requestBundleName))
{
completeCallback?.Invoke("", null);
Debug.LogErrorFormat("Asset Info {0} Not Found", assetName);
return;
}
IncreaseRef(requestBundleName);
if (m_assetLoading.ContainsKey(assetName)) //说明之前有同一个资源的请求
{
m_assetLoading[assetName].assetCompleteCallbackList.Add(completeCallback);
return;
}
WeakReference weakPtr = null;
if (m_assetNameToWeakPtr.TryGetValue(assetName, out weakPtr) && weakPtr.IsAlive)
{
completeCallback?.Invoke(assetName, (UnityEngine.Object)weakPtr.Target);
return;
}
var assetLoader = new KTAssetLoader()
{
loaderType = KTAssetLoader.LoaderType.Asset,
requestAssetName = assetName,
requestBundleName = requestBundleName,
cacheType = cacheType,
cacheTimeout = cacheTimeout,
dependentBundleNames = m_manifest.GetAllDependencies(requestBundleName).ToList(),
assetRequest = null,
assetCompleteCallbackList = new List <Action <string, UnityEngine.Object> >()
{
completeCallback
},
assetCallbackForManager = AssetCompleteCallback
};
m_assetLoading.Add(assetName, assetLoader);
for (int i = 0, j = assetLoader.dependentBundleNames.Count; i < j; ++i)
{
var bundleName = assetLoader.dependentBundleNames[i];
if (m_bundleLoaded.ContainsKey(bundleName))
{
continue;
}
if (m_bundleLoading.ContainsKey(bundleName))
{
m_bundleLoading[bundleName].Subscribe(assetLoader);
}
else
{
var bundleLoader = assetLoader.CreateBundleLoader(bundleName, BundleCompleteCallback);
m_bundleLoading.Add(bundleName, bundleLoader);
bundleLoader.BeginLoad();
}
}
}
public void UnSubscribe(KTAssetLoader loader)
{
completeCallback -= loader.BundleLoadedCallback;
}
