private IEnumerator PreLoad(eAssetType type, System.Action <GameObject> callback)
{
GameObject go = null;
if (_loadType == eLoadType.Resources)
{
go = Resources.Load <GameObject>(string.Format("Prefab/{0}", type.ToString()));
}
else if (_loadType == eLoadType.PackageAssetBundle)
{
var myLoadedAssetBundle = AssetBundle.LoadFromFile(Path.Combine(Application.streamingAssetsPath, type.ToString().ToLower()));
if (myLoadedAssetBundle == null)
{
Debug.LogError("asset bundle load failed!");
yield break;
}
go = myLoadedAssetBundle.LoadAsset <GameObject>(type.ToString());
}
else if (_loadType == eLoadType.AmazonS3)
{
string uri = string.Format("{0}/{1}", amazon_s3_url, type.ToString().ToLower());
UnityWebRequest request = UnityWebRequestAssetBundle.GetAssetBundle(uri, 0);
yield return(request.SendWebRequest());
AssetBundle bundle = DownloadHandlerAssetBundle.GetContent(request);
go = bundle.LoadAsset <GameObject>(type.ToString());
}
if (go == null)
{
Debug.LogError("resource is null!");
}
callback?.Invoke(go);
yield break;
}
public IEnumerator InstantiateGameObjectAsync(eAssetType _assetType, string assetName, System.Action <GameObject> callback)
{
// This is simply to get the elapsed time for this phase of AssetLoading. // 어셋 로드 시작 시각을 세팅
float startTime = Time.realtimeSinceStartup;
Object prefab;
if (ResourceLoadType == eResourceLoadType.UnityEditor)
{
#region 리소스 폴더 로드 방식
prefab = Get(_assetType, assetName);
#endregion
}
else
{
#region 어셋번들 로드 방식
string assetBundleName = _assetType.ToString().ToLower();
// Load asset from assetBundle. //어셋을 비동기로 로드함
AssetBundleLoadAssetOperation request = AssetBundleManager.LoadAssetAsync(assetBundleName, assetName, typeof(GameObject));
if (request == null)
{
yield break;
}
yield return(StartCoroutine(request));
// Get the asset. //비동기 로드가 끝난후 어셋을 게임오브젝트 타입으로 로드함
prefab = request.GetAsset <GameObject>();
#endregion
}
GameObject go;
if (prefab != null)
{
go = (GameObject)Instantiate(prefab); //생성
callback(go);
}
// Calculate and display the elapsed time.
float elapsedTime = Time.realtimeSinceStartup - startTime;
Debug.Log(assetName + (prefab == null ? " was not" : " was") + " loaded successfully in " + elapsedTime + " seconds");
}