public object Load(string path, ResourceLoadContext context)
{
context.AttemptingSyncLoad = true;
context.ResourceLoader = this;
//determine type
context.ResourceType = DetermineResourceType(path, context);
//attempt to load with importers
if (context.ResourceImporter != null)
{
try
{
return(context.ResourceImporter.LoadResource(path, context.ResourceType, context));
}
catch (Exception e)
{
Debug.LogError($"[ResourceLoader] Exception in asset importer {context.ResourceImporter.GetType().Name}");
Debug.LogException(e);
throw e;
}
}
//attempt to load builtin
return(LoadFromFileBuiltin(path, context.ResourceType));
}
public async Task <T> LoadFromFileAsync <T>(string path, ResourceLoadContext context)
{
foreach (var importer in Importers)
{
try
{
if (importer.CanLoadResource(path, context))
{
return((T)await importer.LoadResourceAsync(path, typeof(T), context));
}
}
catch (Exception e)
{
Debug.LogError($"[ResourceLoader] Exception in asset importer {importer.GetType().Name}");
Debug.LogException(e);
}
}
byte[] bytes = null;
await Task.Run(() => {
bytes = File.ReadAllBytes(path);
});
T resource = await LoadFromBytesAsync <T>(bytes, context);
if (resource is UnityEngine.Object obj)
{
obj.name = Path.GetFileNameWithoutExtension(path);
}
return(resource);
}
public static async Task <object> LoadSpriteAsync(string path, ResourceLoadContext context, SpriteData sd)
{
string fullTexturePath = Path.Combine(Path.GetDirectoryName(path), sd.TexturePath);
Texture2D texture;
if (sd.TextureIsResource)
{
texture = context.ResourceManager.GetResource <Texture2D>(path, false);
}
else
{
texture = (Texture2D)await context.ResourceLoader.LoadAsync(fullTexturePath, new ResourceLoadContext()
{
AttemptingSyncLoad = false, ResourceLoader = context.ResourceLoader, ResourceManager = context.ResourceManager, ResourceType = typeof(Texture2D)
});
}
if (!sd.Rect.HasValue)
{
sd.Rect = new Rect(0, 0, texture.width, texture.height);
}
await Task.Yield();
Sprite sprite = Sprite.Create(texture, sd.Rect.Value, sd.Pivot, sd.PixelsPerUnit, 0, SpriteMeshType.FullRect);
sprite.name = Path.GetFileNameWithoutExtension(path);
return(sprite);
}
private async Task <T> LoadFromBytesAsync <T>(byte[] data, ResourceLoadContext context)
{
//TODO actual async implementations
await Task.Yield();
return((T)LoadFromBytesBuiltin(data, typeof(T)));
}
public Type GetResourceType(string path, ResourceLoadContext context)
{
if (Path.GetExtension(path).Equals(".ogg", StringComparison.OrdinalIgnoreCase) || Path.GetExtension(path).Equals(".mp3", StringComparison.OrdinalIgnoreCase))
{
return(typeof(AudioClip));
}
throw new NotSupportedException();
}
/// <summary>
/// Determines the resource type from file type
/// </summary>
/// <returns>The type to be used for a resourcehandle, or null on failure</returns>
public Type DetermineResourceType(string path, ResourceLoadContext context)
{
foreach (var importer in Importers)
{
try
{
if (importer.CanLoadResource(path, context) && (!context.AttemptingSyncLoad || importer.CanLoadSync))
{
context.ResourceImporter = importer;
return(importer.GetResourceType(path, context)); //note that malicious or malformed importers can scribble context
}
}
catch (Exception e)
{
Debug.LogError($"[ResourceLoader] Exception in asset importer {importer.GetType().Name}");
Debug.LogException(e);
}
}
string extension = Path.GetExtension(path);
if (!string.IsNullOrEmpty(extension))
{
extension = extension.TrimStart('.').ToLower(CultureInfo.InvariantCulture);
switch (extension)
{
case "txt":
case "htm":
case "html":
case "xml":
case "json":
case "csv":
case "yaml":
case "fnt":
return(typeof(TextAsset));
case "jpg":
case "jpeg":
case "png":
case "tga":
case "bmp":
return(typeof(Texture2D));
case "wav":
case "wave":
case "mp3":
case "ogg":
case "oga":
case "m4a":
case "flac":
return(typeof(AudioClip));
}
}
return(null);
}
public bool CanLoadResource(string path, ResourceLoadContext context)
{
if (Path.GetExtension(path).Equals(".ogg", StringComparison.OrdinalIgnoreCase))
{
return(true);
}
if (Path.GetExtension(path).Equals(".mp3", StringComparison.OrdinalIgnoreCase))
{
return(true);
}
return(false);
}
public async Task <ResourceHandle> AddResourceFromFileAsync(string targetPath, string filePath, ResourcePriority priority)
{
ResourceLoadContext context = new ResourceLoadContext()
{
AttemptingSyncLoad = false, ResourceManager = this, ResourceLoader = ResourceLoader, TargetPath = targetPath
};
var resource = await ResourceLoader.LoadAsync(filePath, context);
var ro = RetrieveResourceObject(targetPath);
var handleType = typeof(FileResourceHandle <>).MakeGenericType(context.ResourceType);
var rh = (ResourceHandle)Activator.CreateInstance(handleType, resource, filePath, priority, context);
ro.AddResourceHandle(rh, resource.GetType());
return(rh);
}
public bool CanLoadResource(string path, ResourceLoadContext context)
{
if (Path.GetExtension(path).Equals(".jasset", StringComparison.OrdinalIgnoreCase))
{
JObject jo = JObject.Parse(File.ReadAllText(path));
if (!jo.IsNullOrEmpty())
{
string typeName = jo["$assetType"].ToString();
if (typeName == "Sprite")
{
return(true);
}
}
}
return(false);
}
//replacement for LoadFromFile, probably
public object LoadTyped(string path, ResourceLoadContext context)
{
//context may include type and importer information, use that if possible
context.AttemptingSyncLoad = true;
context.ResourceLoader = this;
if (context.ResourceImporter == null && context.ResourceType != null)
{
Debug.LogWarning($"[ResourceLoader] LoadTyped was given a context with type but no importer"); //should this be a warning?
}
if (context.ResourceImporter != null && !context.ResourceImporter.CanLoadSync)
{
Debug.LogWarning($"[ResourceLoader] LoadTyped was given an importer that can't load synchronously!");
context.ResourceImporter = null;
}
if (context.ResourceImporter == null)
{
context.ResourceType = DetermineResourceType(path, context); //this will also get our importer
}
else if (context.ResourceType == null)
{
context.ResourceType = context.ResourceImporter.GetResourceType(path, context);
}
//attempt to load with importers
if (context.ResourceImporter != null)
{
try
{
return(context.ResourceImporter.LoadResource(path, context.ResourceType, context));
}
catch (Exception e)
{
Debug.LogError($"[ResourceLoader] Exception in asset importer {context.ResourceImporter.GetType().Name}");
Debug.LogException(e);
throw e;
}
}
//attempt to load builtin
return(LoadFromFileBuiltin(path, context.ResourceType));
}
public async Task <object> LoadResourceAsync(string path, Type target, ResourceLoadContext context)
{
var aType = AudioType.UNKNOWN;
if (Path.GetExtension(path).Equals(".ogg", StringComparison.OrdinalIgnoreCase))
{
aType = AudioType.OGGVORBIS;
}
else if (Path.GetExtension(path).Equals(".mp3", StringComparison.OrdinalIgnoreCase))
{
aType = AudioType.MPEG;
}
using (var request = UnityWebRequestMultimedia.GetAudioClip($"file://{path}", aType))
{
var operation = request.SendWebRequest();
//dumb AF but fine for now
while (!operation.isDone)
{
await Task.Delay(60);
}
if (request.isNetworkError || request.isHttpError)
{
throw new Exception(request.error);
}
else
{
AudioClip clip = DownloadHandlerAudioClip.GetContent(request);
clip.name = Path.GetFileNameWithoutExtension(path);
return(clip);
}
}
throw new NotImplementedException();
}
private T LoadFromBytes <T>(byte[] data, ResourceLoadContext context)
{
return((T)LoadFromBytesBuiltin(data, typeof(T)));
}
public async Task <object> LoadResourceAsync(string path, Type target, ResourceLoadContext context)
{
SpriteData sd = ReadSpriteData(path);
return(await LoadSpriteAsync(path, context, sd));
}
public object LoadResource(string path, Type target, ResourceLoadContext context)
{
SpriteData sd = ReadSpriteData(path);
return(LoadSprite(path, context, sd));
}
public Type GetResourceType(string path, ResourceLoadContext context)
{
return(typeof(Sprite));
}
public object LoadResource(string path, Type target, ResourceLoadContext context)
{
throw new NotImplementedException();
}
public FileResourceHandle(T resource, string path, ResourcePriority priority, ResourceLoadContext initialLoadContext) : this(resource, path, priority)
{
Importer = initialLoadContext.ResourceImporter;
}