*

LEngine/AssetDatabase.cpp

@@ -0,0 +1,101 @@
+#include "AssetDatabase.h"
+#include <filesystem>
+#include <iostream>
+#include "ModelImporter.h"
+#include "TextureImporter.h"
+#include <algorithm>
+
+AssetDatabase::AssetDatabase()
+{
+	_importers.push_back(std::make_shared<ModelImporter>());
+	//_importers.push_back(std::make_shared<TextureImporter>());
+}
+
+void AssetDatabase::set_root_path(const std::wstring& path)
+{
+}
+
+std::wstring AssetDatabase::asset_to_meta_path(const std::wstring& asset_path)
+{
+	std::tr2::sys::path src(asset_path);
+	return src.parent_path().append(src.filename().wstring() + L".meta").wstring();
+}
+
+void AssetDatabase::register_importer(std::shared_ptr<AssetImporter> importer)
+{
+}
+
+std::vector<std::shared_ptr<Object>> AssetDatabase::load_all_objects(std::shared_ptr<AssetFile> asset)
+{
+	std::vector<std::shared_ptr<Object>> result;
+	auto table = asset->objectsTable;
+	for (auto& obj : table.objects)
+	{
+		result.push_back(LoadObject(AssetFileLink(asset->guid(), obj.localId)));
+	}
+	return result;
+}
+
+
+std::shared_ptr<AssetImporter> AssetDatabase::find_importer(const std::wstring& asset_path) const
+{
+	auto importer = std::find_if(_importers.begin(), _importers.end(), [asset_path](std::shared_ptr<AssetImporter> im) { return im->can_import(asset_path); });
+	if (importer != _importers.end())
+	{
+		return *importer;
+	}
+	return nullptr;
+}
+
+Guid AssetDatabase::file_to_guid(const std::wstring& path) const
+{
+	return AssetMetadata(path).get_guid();
+}
+
+std::shared_ptr<AssetFile> AssetDatabase::open_asset_file(const std::wstring& path)
+{
+	return std::make_shared<AssetFile>(file_to_guid(path), path);
+}
+
+std::shared_ptr<Object> AssetDatabase::LoadReference(const AssetFileLink& link)
+{
+	return LoadObject(link);
+}
+
+
+std::wstring guid_to_path(Guid guid)
+{//TODO: fix hardcode
+	return LR"(C:\Users\Sergey\Desktop\Assets\test.asset)";
+}
+
+
+std::shared_ptr<AssetFile> AssetDatabase::OpenArchive(Guid guid)
+{ //TODO: fix hardcode
+	if (open_archives.empty())
+	{
+		auto a = std::make_shared<AssetFile>(guid, guid_to_path(guid));
+		a->input->LoadReferenceCallback = std::bind(&AssetDatabase::LoadReference, this, std::placeholders::_1);
+		open_archives.push_back(a);
+	}
+	return open_archives[0];
+}
+
+std::shared_ptr<Object> AssetDatabase::LoadObject(AssetFileLink link)
+{
+	auto f = Object::Find(link);
+	if (f != nullptr) { return f; }
+
+	auto archive = OpenArchive(link.fileGuid);
+	archive->SeekToFile(link.localId);
+
+	std::wstring type_name;
+	(*archive->input) << type_name;
+
+	auto obj = ObjectsFactory::instance().create_object(type_name);
+	obj->SetLink(link);
+
+	obj->serialize(*archive->input);
+
+
+	return obj;
+}