/// <summary>
/// Causes ContentTracker to attempt to find and load source assets of the given Type.
/// UseSourceAssets must also be set to true for this to happen
/// </summary>
/// <param name="assetType">Asset Type to search for source assets</param>
/// <param name="validExtensions">An array of file extensions (eg ".png") that are valid for the asset Type</param>
/// <param name="loadAssetDelegate">Method to call when a valid source file is found</param>
public void RegisterSourceAssetLoader(Type assetType, string[] validExtensions, Func <string, object> loadAssetDelegate)
{
if (loadAssetDelegate == null)
{
return;
}
SourceAssetLoaders[assetType] = new ValidSourceAssetDesc(validExtensions, loadAssetDelegate);
}
private bool TrySearchForValidAssetSource <T>(string assetName, out string fileName)
{
if (!SourceAssetLoaders.ContainsKey(typeof(T)))
{
fileName = null;
return(false);
}
ValidSourceAssetDesc assetLoader = SourceAssetLoaders[typeof(T)];
// Determine folder of requested asset
string searchFolder;
if (Path.IsPathRooted(assetName))
{
searchFolder = Path.GetDirectoryName(assetName);
}
else
{
searchFolder = Path.Combine(this.RootDirectory, Path.GetDirectoryName(assetName));
}
// Get all files in folder with same name as asset
#if WINDOWS
string[] files = Directory.GetFiles(searchFolder, Path.GetFileName(assetName) + ".*", SearchOption.TopDirectoryOnly);
#else
string[] files = Directory.GetFiles(searchFolder, Path.GetFileName(assetName) + ".*");
#endif
foreach (string f in files)
{
// Find first file with a valid extension
foreach (string ext in assetLoader.validExtensions)
{
if (f.ToLower().EndsWith(ext))
{
fileName = f;
return(true);
}
}
}
fileName = "";
return(false);
}