public void Load(AssetLoadRequest req)
{
string url = req.url;
if (loaded.TryGetValue(url, out var info))
{
//已经加载完了
info.unusedFrame = 0;
req.assetHandle = new AssetHandle(info.asset, refMgr.GetOrCreateRef(info.asset));
req.Complete();
return;
}
var webReq = req.GetData <UnityWebRequest>("__webRequest");
if (webReq == null)
{
webReq = UnityWebRequest.Get(url);
}
var opt = webReq.SendWebRequest();
opt.completed += OnRequestCompelted;
if (loadingReqs.TryGetValue(url, out var reqs))
{
reqs.Add(req);
}
else
{
reqs = new List <AssetLoadRequest>();
reqs.Add(req);
loadingReqs[url] = reqs;
}
}
bool DoLoadSync(AssetLoadRequest req)
{
var handle = GetLoadHandle(req.path);
req.assetHandle = handle.Load(req.type);
req.Complete();
return(req.assetHandle.isValid);
}
private void OnRequestComplted(AssetLoadRequest req)
{
--loadingCount;
if (!isDone)
{
return;
}
OnCompleted();
}
public void AddRequest(string path, Type type = null, GameObject autoRefGameObject = null)
{
var req = AssetLoadRequest.Get();
req.path = path;
req.type = type;
req.autoRefGameObject = autoRefGameObject;
AddRequest(req);
}
private void OnLoadCompleted(Object asset, AssetLoadRequest req)
{
loaded[req.path] = new WebAssetInfo()
{
asset = asset,
unusedFrame = 0,
};
req.assetHandle = new AssetHandle(asset, refMgr.GetOrCreateRef(asset));
req.Complete();
}
//添加提前创建的任务
//注意任务回调会被覆盖掉
public void AddRequest(AssetLoadRequest req)
{
reqs.Add(req);
req.onCompleted = OnRequestComplted;
if (req.autoFree)
{
req.autoFree = false;
autoFreeReqs.Add(req);
}
}
protected virtual void OnCompleted()
{
//全部加载结束
if (onBatchCompleted != null)
{
onBatchCompleted(this);
}
//回收
foreach (var autoFreeReq in autoFreeReqs)
{
AssetLoadRequest.Free(autoFreeReq);
}
autoFreeReqs.Clear();
reqs.Clear();
}
bool DoLoadAsync(AssetLoadRequest req)
{
if (!req.isUrl)
{
var handle = GetLoadHandle(req.path);
return(handle.LoadAsync(req));
}
else
{
var group = req.GetData <string>("__webGroup");
if (webLoaders.TryGetValue(group, out var loader))
{
loader.Load(req);
return(true);
}
return(false);
}
}
public void StartLoad(AssetLoadRequest req)
{
if (req == null)
{
return;
}
if (req.priority <= AssetLoadRequest.Priority_Sync)
{
DoLoadSync(req);
return;
}
if (loadProcessCoroutine == null)
{
loadProcessCoroutine = StartCoroutine(AssetLoadProcess());
StartCoroutine(AutoClearInvalidAssetRef());
}
requestQueue.Enqueue(req.priority, req);
}
public AssetLoadRequest LoadAsync(string path
, GameObject autoRefGameObject
, AssetLoadRequest.OnCompleted cb = null
, Type type = null
, int priority = AssetLoadRequest.Priority_Common
)
{
var req = AssetLoadRequest.Get();
req.path = path;
req.type = type;
req.onCompleted = cb;
req.autoRefGameObject = autoRefGameObject;
req.priority = priority;
req.autoFree = true;
StartLoad(req);
return(req);
}
public AssetLoadRequest LoadWebTexture(string group, string url
, GameObject autoRefGameObject = null
, AssetLoadRequest.OnCompleted cb = null
, int priority = AssetLoadRequest.Priority_Common)
{
if (priority <= AssetLoadRequest.Priority_Fast)
{
throw new Exception("Load From web not support sync mode." + url);
}
AssetLoadRequest req = AssetLoadRequest.Get();
req.url = url;
req.autoRefGameObject = autoRefGameObject;
req.priority = priority;
req.type = typeof(Texture2D);
req.onCompleted = cb;
req.AttachData("__webGroup", group);
StartLoad(req);
return(req);
}
public AssetLoadRequest LoadFromWeb(string group, UnityEngine.Networking.UnityWebRequest webReq
, GameObject autoRefGameObject = null
, AssetLoadRequest.OnCompleted cb = null
, int priority = AssetLoadRequest.Priority_Common
)
{
if (priority <= AssetLoadRequest.Priority_Fast)
{
throw new Exception("Load From web not support sync mode." + webReq.url);
}
AssetLoadRequest req = AssetLoadRequest.Get();
req.url = webReq.url;
req.autoRefGameObject = autoRefGameObject;
req.priority = priority;
req.onCompleted = cb;
req.AttachData("__webReq", webReq);
req.AttachData("__webGroup", group);
StartLoad(req);
return(req);
}
public bool LoadAsync(AssetLoadRequest req)
{
return(abLoader.LoadFromAbAsync(abPath, assetName, req));
}
public bool LoadAsync(AssetLoadRequest req)
{
req.Complete();
return(false);
}
public bool LoadAsync(AssetLoadRequest req)
{
req.assetHandle = Load(req.type);
req.Complete();
return(req.assetHandle.isValid);
}
//回收任务，减少gc
public static void Free(AssetLoadRequest req)
{
gcPool.Free(req);
}