/// <summary>
/// 加载并缓存
/// 引用计数加 1
/// </summary>
/// <param name="name"></param>
/// <param name="onLoadAssetBundle"></param>
public void LoadOne(string abName, OnLoadAssetBundle onLoadAssetBundle)
{
//1.检测 AssetBundle 缓存
AssetBundleInstance assetBundleInstance;
cache.TryGetValue(abName, out assetBundleInstance);
if (assetBundleInstance != null)
{
//当前 引用计数加 1
assetBundleInstance.Retain();
Debug.LogFormat("{0} 已缓存...", abName);
if (onLoadAssetBundle != null)
{
onLoadAssetBundle(abName, assetBundleInstance.assetBundle);
}
return;
}
//2. 检查 是否在等待队列里
AssetBundleLoader[] waitings = waiting.ToArray();
AssetBundleLoader curWaitingAssetBundleLoader;
for (int i = 0; i < waitings.Length; i++)
{
curWaitingAssetBundleLoader = waitings[i];
if (curWaitingAssetBundleLoader.name.Equals(abName))
{
//当前 引用计数加 1
curWaitingAssetBundleLoader.Retain();
curWaitingAssetBundleLoader.AddCallBack(onLoadAssetBundle);
Debug.LogFormat("{0} 正在加载等待中...", curWaitingAssetBundleLoader.name);
return;
}
}
//3. 同名资源是否正在加载中
if (curAssetBundleLoader != null && curAssetBundleLoader.name.Equals(abName))
{
//System.Delegate[] invocationList = curAssetBundleLoader.onLoadAssetBundle.GetInvocationList();
//当前 引用计数加 1
curAssetBundleLoader.Retain();
curAssetBundleLoader.AddCallBack(onLoadAssetBundle);
//System.Delegate[] invocationList1 = curAssetBundleLoader.onLoadAssetBundle.GetInvocationList();
return;
}
//4. 创建加载器
AssetBundleLoader assetBundleLoader = new AssetBundleWWWLoader();
assetBundleLoader.name = abName;
assetBundleLoader.onLoadAssetBundle = onLoadAssetBundle;
assetBundleLoader.Retain();
//5. 开始加载或加入等待队列
StartOrWait(assetBundleLoader);
}
AssetBundleLoader defaultLoaderCreate(string path)
{
AssetBundleLoader assetBundleLoader;
if (Application.platform == RuntimePlatform.Android)
{
assetBundleLoader = new AssetBundleWWWLoader();
}
else
{
assetBundleLoader = new AssetBundleLoadFromFileLoader();
}
return(assetBundleLoader);
}
/// <summary>
/// Loads the dependencies.
/// 加载和子依赖
/// 引用计数加 1
/// </summary>
/// <param name="abName">Ab name.</param>
protected int LoadDependencies(string abName, AssetBundleManifest assetBundleManifest, OnLoadAssetBundle onLoadAssetBundle = null)
{
string[] dependencies = assetBundleManifest.GetAllDependencies(abName);
//加载子依赖
for (int i = 0; i < dependencies.Length; i++)
{
int dependencieLength = LoadDependencies(dependencies[i], assetBundleManifest);
Debug.LogWarningFormat("assetBundle {0} ,dependencie {1} ,dependencieLength {2} ", abName, dependencies[i], dependencieLength);
}
//1. 检测 AssetBundle 缓存
AssetBundleInstance assetBundleInstance;
cache.TryGetValue(abName, out assetBundleInstance);
if (assetBundleInstance != null)
{
//当前 引用计数加 1
assetBundleInstance.Retain();
Debug.LogFormat("{0} 已缓存...", abName);
if (onLoadAssetBundle != null)
{
onLoadAssetBundle(assetBundleInstance.name, assetBundleInstance.assetBundle);
}
return(dependencies.Length);
}
//2. 检查 是否在等待队列里
AssetBundleLoader[] waitings = waiting.ToArray();
AssetBundleLoader curWaitingAssetBundleLoader;
for (int i = 0; i < waitings.Length; i++)
{
curWaitingAssetBundleLoader = waitings[i];
if (curWaitingAssetBundleLoader.name.Equals(abName))
{
//当前 引用计数加 1
curWaitingAssetBundleLoader.Retain();
curWaitingAssetBundleLoader.AddCallBack(onLoadAssetBundle);
Debug.LogFormat("{0} 正在加载等待中...", curWaitingAssetBundleLoader.name);
return(dependencies.Length);
}
}
//3. 检测 同名资源是否正在加载中
if (curAssetBundleLoader != null && curAssetBundleLoader.name.Equals(abName))
{
//当前 引用计数加 1
curAssetBundleLoader.Retain();
curAssetBundleLoader.AddCallBack(onLoadAssetBundle);
Debug.LogFormat("{0} 正在加载中...", curAssetBundleLoader.name);
return(dependencies.Length);
}
//4. 创建加载器
AssetBundleLoader assetBundleLoader = new AssetBundleWWWLoader();
assetBundleLoader.name = abName;
assetBundleLoader.onLoadAssetBundle = onLoadAssetBundle;
assetBundleLoader.Retain();
//5. 开始加载或加入等待队列
StartOrWait(assetBundleLoader);
return(dependencies.Length);
}
