public static EntityAsset ExtractSceneClone(EntityAssetBase source, Guid sourceRootEntity)
{
if (source == null) throw new ArgumentNullException("source");
// Note: Instead of copying the whole asset (with its potentially big hierarchy), we first copy the asset only (without the hierarchy), then the sub-hierarchy to extract.
// create the hierarchy of the sub-tree
var subTreeRoot = source.Hierarchy.Entities[sourceRootEntity].Entity;
var subTreeHierarchy = new EntityHierarchyData { Entities = { subTreeRoot }, RootEntities = { sourceRootEntity } };
foreach (var subTreeEntity in subTreeRoot.EnumerateChildren(true))
subTreeHierarchy.Entities.Add(source.Hierarchy.Entities[subTreeEntity.Id]);
// clone the entities of the sub-tree
var clonedHierarchy = (EntityHierarchyData)AssetCloner.Clone(subTreeHierarchy);
clonedHierarchy.Entities[sourceRootEntity].Entity.Transform.Parent = null;
// set to null reference outside of the sub-tree
EntityAnalysis.FixupEntityReferences(clonedHierarchy);
// temporary nullify the hierarchy to avoid to clone it
var sourceHierarchy = source.Hierarchy;
source.Hierarchy = null;
// clone asset without hierarchy
var clonedAsset = (EntityAsset)AssetCloner.Clone(source);
clonedAsset.Hierarchy = clonedHierarchy;
// revert the source hierarchy
source.Hierarchy = sourceHierarchy;
return clonedAsset;
}
public static EntityAsset ExtractSceneClone(EntityAssetBase source, Guid sourceRootEntity)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
// Note: Instead of copying the whole asset (with its potentially big hierarchy), we first copy the asset only (without the hierarchy), then the sub-hierarchy to extract.
// create the hierarchy of the sub-tree
var subTreeRoot = source.Hierarchy.Entities[sourceRootEntity].Entity;
var subTreeHierarchy = new EntityHierarchyData {
Entities = { subTreeRoot }, RootEntities = { sourceRootEntity }
};
foreach (var subTreeEntity in subTreeRoot.EnumerateChildren(true))
{
subTreeHierarchy.Entities.Add(source.Hierarchy.Entities[subTreeEntity.Id]);
}
// clone the entities of the sub-tree
var clonedHierarchy = (EntityHierarchyData)AssetCloner.Clone(subTreeHierarchy);
clonedHierarchy.Entities[sourceRootEntity].Entity.Transform.Parent = null;
// set to null reference outside of the sub-tree
EntityAnalysis.FixupEntityReferences(clonedHierarchy);
// temporary nullify the hierarchy to avoid to clone it
var sourceHierarchy = source.Hierarchy;
source.Hierarchy = null;
// clone asset without hierarchy
var clonedAsset = (EntityAsset)AssetCloner.Clone(source);
clonedAsset.Hierarchy = clonedHierarchy;
// revert the source hierarchy
source.Hierarchy = sourceHierarchy;
return(clonedAsset);
}
/// <summary>
/// Fixups the entity references, by clearing invalid <see cref="EntityReference.Id"/>, and updating <see cref="EntityReference.Value"/> (same for components).
/// </summary>
/// <param name="entityAssetBase">The entity asset.</param>
public static void FixupEntityReferences(EntityAssetBase entityAssetBase)
{
FixupEntityReferences(entityAssetBase, entityAssetBase.Hierarchy);
}
public static EntityHierarchyData ImportScene(UFile sourceUrl, EntityAssetBase source, Guid sourceRootEntity, out EntityBase entityBase)
{
if (source == null) throw new ArgumentNullException("source");
// Extract the scene starting from given root
var newAsset = ExtractSceneClone(source, sourceRootEntity);
// Generate entity mapping
var entityMapping = new Dictionary<Guid, Guid>();
var reverseEntityMapping = new Dictionary<Guid, Guid>();
foreach (var entityDesign in newAsset.Hierarchy.Entities)
{
// Generate new Id
var newEntityId = Guid.NewGuid();
// Update mappings
entityMapping.Add(newEntityId, entityDesign.Entity.Id);
reverseEntityMapping.Add(entityDesign.Entity.Id, newEntityId);
// Update entity with new id
entityDesign.Entity.Id = newEntityId;
}
// Rewrite entity references
// Should we nullify invalid references?
EntityAnalysis.RemapEntitiesId(newAsset.Hierarchy, reverseEntityMapping);
// Add asset base
entityBase = new EntityBase { Base = new AssetBase(sourceUrl, newAsset), SourceRoot = sourceRootEntity, IdMapping = entityMapping };
return newAsset.Hierarchy;
}
/// <summary>
/// Fixups the entity references, by clearing invalid <see cref="EntityReference.Id"/>, and updating <see cref="EntityReference.Value"/> (same for components).
/// </summary>
/// <param name="entityAssetBase">The entity asset.</param>
public static void FixupEntityReferences(EntityAssetBase entityAssetBase)
{
FixupEntityReferences(entityAssetBase, entityAssetBase.Hierarchy);
}