private void HintRecyle(AssetBundleHint hint)
{
hint.mainAsset = null;
hint.bundle.Unload(true);
Object.Destroy(hint.bundle);
hint.bundle = null;
}
private void HintInit()
{
hintMap = new Dictionary <string, AssetBundleHint>();
loadedAssetHintMap = new Dictionary <long, AssetBundleHint>();
foreach (var pair in AssetBundleConfig.map)
{
var name = pair.Key;
var node = pair.Value;
hintMap[name] = new AssetBundleHint()
{
bundlePath = BundleTool.GetBundleFilePath(node.assetName),
assetName = node.assetName
};
}
foreach (var pair in AssetBundleConfig.map)
{
var name = pair.Key;
var node = pair.Value;
var hint = hintMap[name];
foreach (var depName in node.depenceList)
{
hint.dependenceList.Add(hintMap[depName]);
}
}
}
private void HintLoadAssetBundle(AssetBundleHint hint)
{
foreach (var depHint in hint.dependenceList)
{
HintLoadAssetBundle(depHint);
}
hint.bundle = hint.bundle ?? AssetBundle.LoadFromFile(hint.bundlePath);
}
private void HintIncreaseRefCount(AssetBundleHint hint)
{
foreach (var depHint in hint.dependenceList)
{
HintIncreaseRefCount(depHint);
}
hint.refCount++;
}
private void HintLoadAssetBundleAsync(AssetBundleHint hint, ResourceAsyncCallBack callback)
{
var mainRequest = new AsyncBundleCreateMainRequest();
var createRequest = HintCreateBundleAsync(hint);
mainRequest.callback = callback;
mainRequest.mainRequest = createRequest;
AddAsyncCallback(mainRequest, OnAssetBundleLoadComplete);
}
private void HintInvokeCallback(AssetBundleHint hint, ResourceAsyncCallBack callback)
{
var resourceRequest = new AsyncResourceRequest();
var asset = hint.mainAsset;
loadedAssetHintMap.Add(asset.GetInstanceID(), hint);
resourceRequest.isDone = true;
resourceRequest.asset = hint.mainAsset;
callback(resourceRequest);
}
private void HintLoadMainAssetAsync(AssetBundleHint hint, ResourceAsyncCallBack callBack)
{
//预定
HintIncreaseRefCount(hint);
if (hint.bundle == null)
{
HintLoadAssetBundleAsync(hint, callBack);
return;
}
DoHintLoadMainAssetAsync(hint, callBack);
}
private void HintReduceRefCount(AssetBundleHint hint)
{
foreach (var depHint in hint.dependenceList)
{
HintReduceRefCount(depHint);
}
hint.refCount--;
if (hint.refCount == 0)
{
HintRecyle(hint);
}
}
protected void DoLoadAsync(string path, ResourceAsyncCallBack callback)
{
AssetBundleHint hint = HintGet(path);
if (hint != null)
{
HintLoadMainAssetAsync(hint, callback);
}
else
{
Debug.LogError("没有Asset资源");
callback(new AsyncResourceRequest());
}
}
protected override Object DoLoad(string path, Type type, bool instantiate)
{
AssetBundleHint hint = HintGet(path);
if (hint != null)
{
return(HintLoadMainAsset(hint, instantiate));
}
else
{
Debug.LogError("没有Asset资源");
return(null);
}
}
private Object HintLoadMainAsset(AssetBundleHint hint, bool instantiate = false)
{
if (hint.bundle == null)
{
HintLoadAssetBundle(hint);
}
if (hint.mainAsset == null)
{
hint.mainAsset = hint.bundle.LoadAsset(hint.assetName);
}
HintIncreaseRefCount(hint);
var asset = instantiate ? Object.Instantiate(hint.mainAsset) : hint.mainAsset;
loadedAssetHintMap.Add(asset.GetInstanceID(), hint);
return(asset);
}
private void DoHintLoadMainAssetAsync(AssetBundleHint hint, ResourceAsyncCallBack callBack)
{
if (hint.mainAsset != null)
{
HintInvokeCallback(hint, callBack);
return;
}
var request = hint.bundle.LoadAssetAsync(hint.assetName);
var assetRequest = new AsyncAssetRequest();
assetRequest.request = request;
assetRequest.callback = callBack;
assetRequest.hint = hint;
AddAsyncCallback(assetRequest, OnAssetLoadComplete);
}
private AsyncBundleCreateRequest HintCreateBundleAsync(AssetBundleHint hint)
{
var request = AssetBundle.LoadFromFileAsync(hint.bundlePath);
var bundleRequest = new AsyncBundleCreateRequest();
bundleRequest.createRequest = request;
bundleRequest.hint = hint;
for (int i = 0, count = hint.dependenceList.Count; i < count; i++)
{
var depHint = hint.dependenceList[i];
if (depHint.bundle == null)
{
bundleRequest.dependenceRequestList.Add(HintCreateBundleAsync(depHint));
}
}
return(bundleRequest);
}