/// <summary>
/// Please define 'bind'. I think it means.. fields are bound to other things
/// </summary>
protected virtual void BindManifest(ContentManifestEntry manifest)
{
//TODO: consider: prevent from being bound more than once. That's just illegal.
//just keep a bool for that purpose? What a waste.
//What if the binding is just so internal to the engine that it's not possible for a user to do it more than once?
//That would be preferred
var myType = GetType();
attributes = manifest.Attributes;
//bind all children
if (manifest.Children != null)
{
foreach (var child in manifest.Children)
{
var name = child.Name;
//even though the manifest may have come from reflection...
//it also may NOT have. so we need to reflect again in order to do the binding
var fieldInfo = myType.GetField(name, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
//check the current value. if it's null, we need to instantiate a proxy
var o = fieldInfo.GetValue(this);
if (o == null)
{
o = CreateBoundContentProxy(fieldInfo.FieldType, name, child);
fieldInfo.SetValue(this, o);
}
//bind this child
var childContentField = o as ContentBase;
if (childContentField == null)
{
//if it isn't content, then it is a subcontent holder
//but what to do about that? we need to set its members
//our old concept was to automatically create directories here. but that's actually inappropriate..
//if the holder were also a directory, we would automatically do it..
//--although I would need to make sure directories hosted on other things work
//and really, that's pretty bad
//maybe I need a special process here that goes off into the great beyond filling in unknown types...
//but.. uh.. it could be pretty cool to have these be directories. maybe lets try it and see how it goes.
//or maybe a new type that can enumerate its members
}
else
{
childContentField.BindManifest(child);
}
}
}
}
/// <summary>
/// Creates a content proxy which is.. 'bound'.. to a field?
/// That's the intent, but it looks like the different logic in here isn't directly related to that.
/// It should be possible to do oven stuff without... man, I dont know
/// </summary>
protected virtual ContentBase CreateBoundContentProxy(Type type, string name, ContentManifestEntry manifestEntry)
{
//manifestEntry has to come in so we can use it during creating content.. yeah.. i should have thought of that.
//I need to clean that up
ContentBase content = CreateContentProxy(type, name);
content.attributes = manifestEntry.Attributes;
//if we're bruted, just create the baked loader and move on
#if !BRUTED
//try getting the pipeline we'd use to bake this content. If there's such a pipeline, set us up to use it
var pipeline = Manager.PipelineConnector.GetPipeline(content);
if (pipeline != null)
{
//TODO - I had intended a 1:1 correspondence of loaders to content instances, but maybe I can have the loaders have the required name and directory context? I think it should be possible
content._loader = new Loaders.ProtoLoader(content)
{
directoryOwner = this as ContentDirectory, //I guess we know this is true
name = name
};
return(content);
}
#endif
//if we weren't able to setup the proto loader, we can still load it baked
//this probably doesnt make any sense in a Proto target..
//maybe it makes sense for binary content not managed by a content type really?
//but we should probably have some setup that copies it over, anyway
//else, a ProtoSlimLoader which loads it straight from the content directory.
//not sure yet. anyway, this is harmless.
content._loader = new Loaders.BakedLoader(content)
{
directoryOwner = this as ContentDirectory, //I guess we know this is true
name = name
};
return(content);
}
protected override ContentBase CreateBoundContentProxy(Type type, string name, ContentManifestEntry manifestEntry)
{
//special handling for directories--we need to create subdirectories specially
//EDIT: do we really? can't it get dealt with, like, by tracking the directory owner, and pulling information from that?
var content = base.CreateBoundContentProxy(type, name, manifestEntry);
if (typeof(ContentDirectory).IsAssignableFrom(type))
{
var newSubdir = (ContentDirectory)content;
newSubdir.RawContentDiskRoot = System.IO.Path.Combine(RawContentDiskRoot, name);
newSubdir.BakedContentDiskRoot = System.IO.Path.Combine(BakedContentDiskRoot, name);
//special handling:
var backendSubdirAttrib = content.Attributes.GetAttribute <BackendSubdirectory>();
if (backendSubdirAttrib != null)
{
newSubdir.RawContentDiskRoot = System.IO.Path.Combine(newSubdir.RawContentDiskRoot, Manager.SelectedBackend.ToString());
newSubdir.BakedContentDiskRoot = System.IO.Path.Combine(newSubdir.BakedContentDiskRoot, Manager.SelectedBackend.ToString());
}
newSubdir.LogicalPath = $"{LogicalPath}/{name}";
//it's responsible for loading itself.. kind of weird..
//that's different from other content (which is concretely realized on the filesystem)
newSubdir._loader = newSubdir;
}
//we need to track all the content we create, that's one of the purposes of a directory
childContent[name] = content;
return(content);
}
static ContentManifestEntry _Reflect(Type targetType, bool inContent)
{
bool iAmDirectory = targetType.IsSubclassOf(typeof(ContentDirectory));
ContentManifestEntry ret = new ContentManifestEntry()
{
Children = new List <ContentManifestEntry>()
};
foreach (var fi in targetType.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
{
var fieldType = fi.FieldType;
bool isContentType = fieldType.IsSubclassOf(typeof(ContentBase));
bool isContentDirectory = fieldType.IsSubclassOf(typeof(ContentDirectory));
bool isSubcontentHolder = fi.GetCustomAttributes <SubcontentAttribute>().Any();
if (isContentDirectory)
{
var entry = _Reflect(fi.FieldType, inContent);
entry.Name = fi.Name;
entry.Attributes = fi.GetCustomAttributes(false); //warning: this may affect how the directory is interpreted, so maybe it should do this
ret.Children.Add(entry);
}
else if (isContentType)
{
//content can have subcontent holders, so we need to recurse into that
var entry = _Reflect(fieldType, true);
entry.Name = fi.Name;
entry.Attributes = fi.GetCustomAttributes(false);
ret.Children.Add(entry);
}
else if (isSubcontentHolder)
{
//subcontent must be under content; moreover it must be legal for that content type (todo)
if (!inContent)
{
throw new Exception("Structural error: subcontent outside of content"); //todo: just make an informative log message
//continue;
}
var entry = _Reflect(fieldType, true);
entry.Name = fi.Name;
entry.Attributes = fi.GetCustomAttributes(false);
ret.Children.Add(entry);
}
else
{
if (inContent)
{
}
else if (iAmDirectory)
{
}
else
{
throw new Exception("Non-content found in content manifest type");
}
}
}
return(ret);
}
internal void DoBindManifest(ContentManifestEntry manifest)
{
BindManifest(manifest);
}
