/// <inheritdoc />
public override bool ProcessDeserializedData(AssetPropertyGraphContainer graphContainer, object targetRootObject, Type targetMemberType, ref object data, bool isRootDataObjectReference, AssetId?sourceId, YamlAssetMetadata <OverrideType> overrides, YamlAssetPath basePath)
{
var asset = (AssetCompositeHierarchy <TAssetPartDesign, TAssetPart>)targetRootObject;
var hierarchy = data as AssetCompositeHierarchyData <TAssetPartDesign, TAssetPart>;
if (hierarchy == null)
{
return(false);
}
// Create a temporary asset to host the hierarchy to paste, so we have a property graph to manipulate it.
var tempAsset = (AssetCompositeHierarchy <TAssetPartDesign, TAssetPart>)Activator.CreateInstance(asset.GetType());
tempAsset.Hierarchy = hierarchy;
// Use temporary containers so that any created nodes are discarded after the processing.
var tempNodeContainer = new AssetNodeContainer {
NodeBuilder = { NodeFactory = new AssetNodeFactory() }
};
var definition = AssetQuantumRegistry.GetDefinition(asset.GetType());
var rootNode = tempNodeContainer.GetOrCreateNode(tempAsset);
// If different asset or if at least one part already exists, create a custom clone.
if (asset.Id != sourceId || hierarchy.Parts.Values.Any(part => asset.ContainsPart(part.Part.Id)))
{
// Clone again to create new ids for any IIdentifiable, but keep references to external object intact.
var cloneExternalReferences = ExternalReferenceCollector.GetExternalReferences(definition, rootNode);
hierarchy = AssetCloner.Clone(hierarchy, AssetClonerFlags.GenerateNewIdsForIdentifiableObjects, cloneExternalReferences, out var idRemapping);
// Remap indices of parts in Hierarchy.Part
AssetCloningHelper.RemapIdentifiablePaths(overrides, idRemapping, basePath);
// Make new base instances ids in case the part are inherited.
AssetPartsAnalysis.GenerateNewBaseInstanceIds(hierarchy);
// Update the temporary asset with this cloned hierarchy.
rootNode[nameof(AssetCompositeHierarchy <TAssetPartDesign, TAssetPart> .Hierarchy)].Update(hierarchy);
}
// Collect all referenceable objects from the target asset (where we're pasting)
var targetPropertyGraph = graphContainer.TryGetGraph(asset.Id);
var referenceableObjects = IdentifiableObjectCollector.Collect(targetPropertyGraph.Definition, targetPropertyGraph.RootNode);
// Replace references in the hierarchy being pasted by the real objects from the target asset.
var externalReferences = new HashSet <Guid>(ExternalReferenceCollector.GetExternalReferences(definition, rootNode).Select(x => x.Id));
var visitor = new ObjectReferencePathGenerator(definition)
{
ShouldOutputReference = x => externalReferences.Contains(x)
};
visitor.Visit(rootNode);
FixupObjectReferences.FixupReferences(tempAsset, visitor.Result, referenceableObjects, true);
data = hierarchy;
return(true);
}
/// <inheritdoc/>
protected override Dictionary <Guid, IIdentifiable> CollectIdentifiableObjects()
{
var allElements = RootElements.Values.BreadthFirst(x => x.VisualChildren);
var definition = AssetQuantumRegistry.GetDefinition(Asset.Asset.GetType());
var identifiableObjects = new Dictionary <Guid, IIdentifiable>();
foreach (var entityNode in allElements.Select(x => GameSideNodeContainer.GetOrCreateNode(x)))
{
foreach (var identifiable in IdentifiableObjectCollector.Collect(definition, entityNode))
{
identifiableObjects.Add(identifiable.Key, identifiable.Value);
}
}
return(identifiableObjects);
}
/// <inheritdoc/>
protected override Dictionary <Guid, IIdentifiable> CollectIdentifiableObjects()
{
var allEntities = Game.ContentScene.Yield().BreadthFirst(x => x.Children).SelectMany(x => x.Entities).BreadthFirst(x => x.Transform.Children.Select(y => y.Entity));
var definition = AssetQuantumRegistry.GetDefinition(Asset.Asset.GetType());
var identifiableObjects = new Dictionary <Guid, IIdentifiable>();
foreach (var entityNode in allEntities.Select(x => GameSideNodeContainer.GetOrCreateNode(x)))
{
foreach (var identifiable in IdentifiableObjectCollector.Collect(definition, entityNode))
{
identifiableObjects.Add(identifiable.Key, identifiable.Value);
}
}
return(identifiableObjects);
}
/// <summary>
/// Deletes the given parts and all its children, recursively, and clear all object references to it.
/// </summary>
/// <param name="partDesigns">The parts to delete.</param>
/// <param name="deletedPartsMapping">A mapping of the base information (base part id, instance id) of the deleted parts that have a base.</param>
public void DeleteParts([NotNull] IEnumerable <TAssetPartDesign> partDesigns, [NotNull] out HashSet <Tuple <Guid, Guid> > deletedPartsMapping)
{
if (partDesigns == null)
{
throw new ArgumentNullException(nameof(partDesigns));
}
var partsToDelete = new Stack <TAssetPartDesign>(partDesigns);
var referencesToClear = new HashSet <Guid>();
deletedPartsMapping = new HashSet <Tuple <Guid, Guid> >();
while (partsToDelete.Count > 0)
{
// We need to remove children first to keep consistency in our data
var partToDelete = partsToDelete.Peek();
var children = Asset.EnumerateChildPartDesigns(partToDelete, Asset.Hierarchy, false).ToList();
if (children.Count > 0)
{
// Enqueue children if there is any, and re-process the stack
children.ForEach(x => partsToDelete.Push(x));
continue;
}
// No children to process, we can safely remove the current part from the stack
partToDelete = partsToDelete.Pop();
// First remove all references to the part we are deleting
// Note: we must do this first so instances of this base will be able to properly make the connection with the base part being cleared
var containedIdentifiables = IdentifiableObjectCollector.Collect(Definition, Container.NodeContainer.GetNode(partToDelete.Part));
containedIdentifiables.Keys.ForEach(x => referencesToClear.Add(x));
referencesToClear.Add(partToDelete.Part.Id);
// Then actually remove the part from the hierarchy
RemovePartFromAsset(partToDelete);
// Keep track of deleted part instances
if (partToDelete.Base != null)
{
deletedPartsMapping.Add(Tuple.Create(partToDelete.Base.BasePartId, partToDelete.Base.InstanceId));
}
}
TrackDeletedInstanceParts(deletedPartsMapping);
ClearReferencesToObjects(referencesToClear);
}
/// <inheritdoc />
public override bool ProcessDeserializedData(AssetPropertyGraphContainer graphContainer, object targetRootObject, Type targetMemberType, ref object data, bool isRootDataObjectReference, AssetId?sourceId, YamlAssetMetadata <OverrideType> overrides, YamlAssetPath basePath)
{
if (targetRootObject == null)
{
throw new ArgumentNullException(nameof(targetRootObject));
}
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
var asset = (Asset)targetRootObject;
var targetPropertyGraph = graphContainer.TryGetGraph(asset.Id);
// We use a container object in case the data itself is an object reference
var container = isRootDataObjectReference ? new FixupContainer {
Data = data
} : data;
var rootNode = targetPropertyGraph.Container.NodeContainer.GetOrCreateNode(container);
var externalReferences = ExternalReferenceCollector.GetExternalReferences(targetPropertyGraph.Definition, rootNode);
try
{
// Clone to create new ids for any IIdentifiable, except passed external references that will be maintained
Dictionary <Guid, Guid> idRemapping;
data = AssetCloner.Clone <object>(data, AssetClonerFlags.GenerateNewIdsForIdentifiableObjects, externalReferences, out idRemapping);
}
// TODO: have a proper exception type for serialization failure
catch (Exception)
{
// Note: this can fail if the type doesn't have a binary serializer.
return(false);
}
var targetTypeDescriptor = TypeDescriptorFactory.Default.Find(targetMemberType);
bool result;
switch (targetTypeDescriptor.Category)
{
case DescriptorCategory.Collection:
result = ConvertForCollection((CollectionDescriptor)targetTypeDescriptor, ref data);
break;
case DescriptorCategory.Dictionary:
result = ConvertForDictionary((DictionaryDescriptor)targetTypeDescriptor, ref data);
break;
case DescriptorCategory.Primitive:
case DescriptorCategory.Object:
case DescriptorCategory.NotSupportedObject:
case DescriptorCategory.Nullable:
result = ConvertForProperty(targetTypeDescriptor.Type, ref data);
break;
case DescriptorCategory.Array:
case DescriptorCategory.Custom:
throw new NotSupportedException();
default:
throw new ArgumentOutOfRangeException();
}
if (!result)
{
return(false);
}
// Collect all referenceable objects from the target asset (where we're pasting)
var referenceableObjects = IdentifiableObjectCollector.Collect(targetPropertyGraph.Definition, targetPropertyGraph.RootNode);
// We use a container object in case the data itself is an object reference
container = isRootDataObjectReference ? new FixupContainer {
Data = data
} : data;
rootNode = targetPropertyGraph.Container.NodeContainer.GetOrCreateNode(container);
// Generate YAML paths for the external reference so we can go through the normal deserialization fixup method.
var externalReferenceIds = new HashSet <Guid>(externalReferences.Select(x => x.Id));
var visitor = new ObjectReferencePathGenerator(targetPropertyGraph.Definition)
{
ShouldOutputReference = x => externalReferenceIds.Contains(x)
};
visitor.Visit(rootNode);
// Fixup external references
FixupObjectReferences.FixupReferences(container, visitor.Result, referenceableObjects, true);
data = (container as FixupContainer)?.Data ?? data;
return(true);
}