// Ok, let's explain why this method uses the "new" keyword.
// In the olden days (before September 2009) the user would call
// FlatRedBallServices.Load<TypeToLoad> which would investigate whether
// the user passed an assetName that had an extension or not. Then the
// FlatRedBallServices class would call LoadFromFile or LoadFromProject
// depending on the presence of an extension.
//
// In an effort to reduce the responsibilities of the FlatRedBallServices
// class, Vic decided to move the loading code (including the logic that branches
// depending on whether an asset has an extension) into the ContentManager class.
// To keep things simple, the FlatRedBallServices just has to call Load and the Load
// method will do the branching inside the ContentManager class. That all worked well,
// except that the branching code also "standardizes" the name, which means it turns relative
// paths into absolute paths. The reason this is a problem is IF the user loads an object (such
// as a .X file) which references another file, then the Load method will be called again on the referenced
// asset name.
//
// The FRB ContentManager doesn't use relative directories - instead, it makes all assets relative to the .exe
// by calling Standardize. However, if Load is called by XNA code (such as when loading a .X file)
// then any files referenced by the X will come in already made relative to the ContentManager.
// This means that if a .X file was "Content\myModel" and it referenced myTexture.png which was in the same
// folder as the .X file, then Load would get called with "Content\myTexture" as the argument. That is, the .X loading
// code would already prepend "Content\" before "myTexture. But the FRB content manager wouldn't know this, and it'd
// try to standardize it as well, making the file "Content\Content\myTexture."
//
// So the solution? We make Load a "new" method. That means that if Load is called by XNA, then it'll call the
// Load of XNA's ContentManager. But if FRB calls it, it'll call the "new" version. Problem solved.
public new T Load<T>(string assetName)
{
var standardized = FileManager.Standardize(assetName);
if(FileAliases.ContainsKey(standardized))
{
assetName = FileAliases[standardized];
}
// Assets can be loaded either from file or from assets referenced
// in the project.
string extension = FileManager.GetExtension(assetName);
#region If there is an extension, loading from file or returning an already-loaded asset
assetName = FileManager.Standardize(assetName);
if (extension != String.Empty)
{
return LoadFromFile<T>(assetName);
}
#endregion
#region Else there is no extension, so the file is already part of the project. Use a ContentManager
else
{
#if PROFILE
bool exists = false;
exists = IsAssetLoadedByName<T>(assetName);
if (exists)
{
mHistory.Add(new ContentLoadHistory(
TimeManager.CurrentTime, typeof(T).Name, assetName, ContentLoadDetail.Cached));
}
else
{
mHistory.Add(new ContentLoadHistory(
TimeManager.CurrentTime, typeof(T).Name, assetName, ContentLoadDetail.HddFromContentPipeline));
}
#endif
return LoadFromProject<T>(assetName);
}
#endregion
}
public List <string> GetReferencedFiles(RelativeType relativeType)
{
List <string> referencedFiles = new List <string>();
foreach (AnimationChainSave acs in this.AnimationChains)
{
//if(acs.ParentFile
if (acs.ParentFile != null && acs.ParentFile.EndsWith(".gif"))
{
referencedFiles.Add(acs.ParentFile);
}
else
{
foreach (AnimationFrameSave afs in acs.Frames)
{
string texture = FileManager.Standardize(afs.TextureName, null, false);
if (FileManager.GetExtension(texture).StartsWith("gif"))
{
texture = FileManager.RemoveExtension(texture) + ".gif";
}
if (!string.IsNullOrEmpty(texture) && !referencedFiles.Contains(texture))
{
referencedFiles.Add(texture);
}
}
}
}
if (relativeType == RelativeType.Absolute)
{
string directory = FileManager.GetDirectory(FileName);
for (int i = 0; i < referencedFiles.Count; i++)
{
referencedFiles[i] = directory + referencedFiles[i];
}
}
return(referencedFiles);
}
public T LoadFromFile <T>(string assetName)
{
string extension = FileManager.GetExtension(assetName);
if (FileManager.IsRelative(assetName))
{
// get the absolute path using the current relative directory
assetName = FileManager.RelativeDirectory + assetName;
}
string fullNameWithType = assetName + typeof(T).Name;
// get the dictionary by the contentManagerName. If it doesn't exist, GetDisposableDictionaryByName
// will create it.
if (mDisposableDictionary.ContainsKey(fullNameWithType))
{
#if PROFILE
mHistory.Add(new ContentLoadHistory(
TimeManager.CurrentTime, typeof(T).Name, fullNameWithType, ContentLoadDetail.Cached));
#endif
return((T)mDisposableDictionary[fullNameWithType]);
}
else if (mNonDisposableDictionary.ContainsKey(fullNameWithType))
{
return((T)mNonDisposableDictionary[fullNameWithType]);
}
else
{
#if PROFILE
mHistory.Add(new ContentLoadHistory(
TimeManager.CurrentTime,
typeof(T).Name,
fullNameWithType,
ContentLoadDetail.HddFromFile));
#endif
#if DEBUG
// The ThrowExceptionIfFileDoesntExist
// call used to be done before the checks
// in the dictionaries. But whatever is held
// in there may not really be a file so let's check
// if the file exists after we check the dictionaries.
FileManager.ThrowExceptionIfFileDoesntExist(assetName);
#endif
IDisposable loadedAsset = null;
if (typeof(T) == typeof(Texture2D) || typeof(T) == typeof(Microsoft.Xna.Framework.Graphics.Texture2D))
{
// for now we'll create it here, eventually have it in a dictionary:
loadedAsset = textureContentLoader.Load(assetName);
}
#region Scene
else if (typeof(T) == typeof(FlatRedBall.Scene))
{
FlatRedBall.Scene scene = FlatRedBall.Content.Scene.SceneSave.FromFile(assetName).ToScene(mName);
object sceneAsObject = scene;
lock (mNonDisposableDictionary)
{
if (!mNonDisposableDictionary.ContainsKey(fullNameWithType))
{
mNonDisposableDictionary.Add(fullNameWithType, scene);
}
}
return((T)sceneAsObject);
}
#endregion
#region EmitterList
else if (typeof(T) == typeof(EmitterList))
{
EmitterList emitterList = EmitterSaveList.FromFile(assetName).ToEmitterList(mName);
mNonDisposableDictionary.Add(fullNameWithType, emitterList);
return((T)((object)emitterList));
}
#endregion
#region Image
#if !MONOGAME
else if (typeof(T) == typeof(Image))
{
switch (extension.ToLowerInvariant())
{
case "gif":
Image image = Image.FromFile(assetName);
loadedAsset = image;
break;
}
}
#endif
#endregion
#region BitmapList
#if !XBOX360 && !SILVERLIGHT && !WINDOWS_PHONE && !MONOGAME
else if (typeof(T) == typeof(BitmapList))
{
loadedAsset = BitmapList.FromFile(assetName);
}
#endif
#endregion
#region NodeNetwork
else if (typeof(T) == typeof(NodeNetwork))
{
NodeNetwork nodeNetwork = NodeNetworkSave.FromFile(assetName).ToNodeNetwork();
mNonDisposableDictionary.Add(fullNameWithType, nodeNetwork);
return((T)((object)nodeNetwork));
}
#endregion
#region ShapeCollection
else if (typeof(T) == typeof(ShapeCollection))
{
ShapeCollection shapeCollection =
ShapeCollectionSave.FromFile(assetName).ToShapeCollection();
mNonDisposableDictionary.Add(fullNameWithType, shapeCollection);
return((T)((object)shapeCollection));
}
#endregion
#region PositionedObjectList<Polygon>
else if (typeof(T) == typeof(PositionedObjectList <FlatRedBall.Math.Geometry.Polygon>))
{
PositionedObjectList <FlatRedBall.Math.Geometry.Polygon> polygons =
PolygonSaveList.FromFile(assetName).ToPolygonList();
mNonDisposableDictionary.Add(fullNameWithType, polygons);
return((T)((object)polygons));
}
#endregion
#region AnimationChainList
else if (typeof(T) == typeof(AnimationChainList))
{
if (assetName.EndsWith("gif"))
{
#if WINDOWS_8 || UWP || DESKTOP_GL
throw new NotImplementedException();
#else
AnimationChainList acl = new AnimationChainList();
acl.Add(FlatRedBall.Graphics.Animation.AnimationChain.FromGif(assetName, this.mName));
acl[0].ParentGifFileName = assetName;
loadedAsset = acl;
#endif
}
else
{
loadedAsset =
AnimationChainListSave.FromFile(assetName).ToAnimationChainList(mName);
}
mNonDisposableDictionary.Add(fullNameWithType, loadedAsset);
}
#endregion
else if (typeof(T) == typeof(Song))
{
var loader = new SongLoader();
return((T)(object)loader.Load(assetName));
}
#if MONOGAME
else if (typeof(T) == typeof(SoundEffect))
{
T soundEffect;
if (assetName.StartsWith(@".\") || assetName.StartsWith(@"./"))
{
soundEffect = base.Load <T>(assetName.Substring(2));
}
else
{
soundEffect = base.Load <T>(assetName);
}
return(soundEffect);
}
#endif
#region RuntimeCsvRepresentation
#if !SILVERLIGHT
else if (typeof(T) == typeof(RuntimeCsvRepresentation))
{
#if XBOX360
throw new NotImplementedException("Can't load CSV from file. Try instead to use the content pipeline.");
#else
return((T)((object)CsvFileManager.CsvDeserializeToRuntime(assetName)));
#endif
}
#endif
#endregion
#region SplineList
else if (typeof(T) == typeof(List <Spline>))
{
List <Spline> splineList = SplineSaveList.FromFile(assetName).ToSplineList();
mNonDisposableDictionary.Add(fullNameWithType, splineList);
object asObject = splineList;
return((T)asObject);
}
else if (typeof(T) == typeof(SplineList))
{
SplineList splineList = SplineSaveList.FromFile(assetName).ToSplineList();
mNonDisposableDictionary.Add(fullNameWithType, splineList);
object asObject = splineList;
return((T)asObject);
}
#endregion
#region BitmapFont
else if (typeof(T) == typeof(BitmapFont))
{
// We used to assume the texture is named the same as the font file
// But now FRB understands the .fnt file and gets the PNG from the font file
//string pngFile = FileManager.RemoveExtension(assetName) + ".png";
string fntFile = FileManager.RemoveExtension(assetName) + ".fnt";
BitmapFont bitmapFont = new BitmapFont(fntFile, this.mName);
object bitmapFontAsObject = bitmapFont;
return((T)bitmapFontAsObject);
}
#endregion
#region Text
else if (typeof(T) == typeof(string))
{
return((T)((object)FileManager.FromFileText(assetName)));
}
#endregion
#region Catch mistakes
#if DEBUG
else if (typeof(T) == typeof(Spline))
{
throw new Exception("Cannot load Splines. Try using the List<Spline> type instead.");
}
else if (typeof(T) == typeof(Emitter))
{
throw new Exception("Cannot load Emitters. Try using the EmitterList type instead.");
}
#endif
#endregion
#region else, exception!
else
{
throw new NotImplementedException("Cannot load content of type " +
typeof(T).AssemblyQualifiedName + " from file. If you are loading " +
"through the content pipeline be sure to remove the extension of the file " +
"name.");
}
#endregion
if (loadedAsset != null)
{
lock (mDisposableDictionary)
{
// Multiple threads could try to load this content simultaneously
if (!mDisposableDictionary.ContainsKey(fullNameWithType))
{
mDisposableDictionary.Add(fullNameWithType, loadedAsset);
}
}
}
return((T)loadedAsset);
}
}
