public static SceneSectionData[] WriteEntityScene(Scene scene, GameObjectConversionSettings settings, List <ReferencedUnityObjects> sectionRefObjs = null)
{
int framesToRetainBlobAssets = RetainBlobAssetsSetting.GetFramesToRetainBlobAssets(settings.BuildConfiguration);
var world = new World("ConversionWorld");
var entityManager = world.EntityManager;
settings.DestinationWorld = world;
bool disposeBlobAssetCache = false;
if (settings.BlobAssetStore == null)
{
settings.BlobAssetStore = new BlobAssetStore();
disposeBlobAssetCache = true;
}
List <(int, LogEventData)> journalData = null;
settings.ConversionWorldPreDispose += conversionWorld =>
{
var mappingSystem = conversionWorld.GetExistingSystem <GameObjectConversionMappingSystem>();
journalData = mappingSystem.JournalData.SelectLogEventsOrdered().ToList();
};
ConvertScene(scene, settings);
EntitySceneOptimization.Optimize(world);
if (settings.AssetImportContext != null)
{
using (var allTypes = new NativeHashMap <ComponentType, int>(100, Allocator.Temp))
using (var archetypes = new NativeList <EntityArchetype>(Allocator.Temp))
{
entityManager.GetAllArchetypes(archetypes);
foreach (var archetype in archetypes)
{
using (var componentTypes = archetype.GetComponentTypes())
foreach (var componentType in componentTypes)
{
if (allTypes.TryAdd(componentType, 0))
{
TypeDependencyCache.AddDependency(settings.AssetImportContext, componentType);
}
}
}
}
TypeDependencyCache.AddAllSystemsDependency(settings.AssetImportContext);
}
var sceneSections = new List <SceneSectionData>();
var subSectionList = new List <SceneSection>();
entityManager.GetAllUniqueSharedComponentData(subSectionList);
var extRefInfoEntities = new NativeArray <Entity>(subSectionList.Count, Allocator.Temp);
NativeArray <Entity> entitiesInMainSection;
var sectionQuery = entityManager.CreateEntityQuery(
new EntityQueryDesc
{
All = new[] { ComponentType.ReadWrite <SceneSection>() },
Options = EntityQueryOptions.IncludePrefab | EntityQueryOptions.IncludeDisabled
}
);
var sectionBoundsQuery = entityManager.CreateEntityQuery(
new EntityQueryDesc
{
All = new[] { ComponentType.ReadWrite <SceneBoundingVolume>(), ComponentType.ReadWrite <SceneSection>() },
Options = EntityQueryOptions.IncludePrefab | EntityQueryOptions.IncludeDisabled
}
);
var sceneGUID = settings.SceneGUID;
{
var section = new SceneSection {
SceneGUID = sceneGUID, Section = 0
};
sectionQuery.SetSharedComponentFilter(new SceneSection {
SceneGUID = sceneGUID, Section = 0
});
sectionBoundsQuery.SetSharedComponentFilter(new SceneSection {
SceneGUID = sceneGUID, Section = 0
});
entitiesInMainSection = sectionQuery.ToEntityArray(Allocator.TempJob);
var bounds = GetBoundsAndRemove(entityManager, sectionBoundsQuery);
// Each section will be serialized in its own world, entities that don't have a section are part of the main scene.
// An entity that holds the array of external references to the main scene is required for each section.
// We need to create them all before we start moving entities to section scenes,
// otherwise they would reuse entities that have been moved and mess up the remapping tables.
for (int sectionIndex = 1; sectionIndex < subSectionList.Count; ++sectionIndex)
{
if (subSectionList[sectionIndex].Section == 0)
{
// Main section, the only one that doesn't need an external ref array
continue;
}
var extRefInfoEntity = entityManager.CreateEntity();
entityManager.AddSharedComponentData(extRefInfoEntity, subSectionList[sectionIndex]);
extRefInfoEntities[sectionIndex] = extRefInfoEntity;
}
// Public references array, only on the main section.
var refInfoEntity = entityManager.CreateEntity();
entityManager.AddBuffer <PublicEntityRef>(refInfoEntity);
entityManager.AddSharedComponentData(refInfoEntity, section);
var publicRefs = entityManager.GetBuffer <PublicEntityRef>(refInfoEntity);
// entityManager.Debug.CheckInternalConsistency();
//@TODO do we need to keep this index? doesn't carry any additional info
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
PublicEntityRef.Add(ref publicRefs,
new PublicEntityRef {
entityIndex = i, targetEntity = entitiesInMainSection[i]
});
}
UnityEngine.Debug.Assert(publicRefs.Length == entitiesInMainSection.Length);
// Save main section
var sectionWorld = new World("SectionWorld");
var sectionManager = sectionWorld.EntityManager;
var entityRemapping = entityManager.CreateEntityRemapArray(Allocator.TempJob);
sectionManager.MoveEntitiesFrom(entityManager, sectionQuery, entityRemapping);
AddRetainBlobAssetsEntity(sectionManager, framesToRetainBlobAssets);
// The section component is only there to break the conversion world into different sections
// We don't want to store that on the disk
//@TODO: Component should be removed but currently leads to corrupt data file. Figure out why.
//sectionManager.RemoveComponent(sectionManager.UniversalQuery, typeof(SceneSection));
var sectionFileSize = WriteEntityScene(sectionManager, sceneGUID, "0", settings, out var objectRefCount, out var objRefs);
sectionRefObjs?.Add(objRefs);
sceneSections.Add(new SceneSectionData
{
FileSize = sectionFileSize,
SceneGUID = sceneGUID,
ObjectReferenceCount = objectRefCount,
SubSectionIndex = 0,
BoundingVolume = bounds
});
entityRemapping.Dispose();
sectionWorld.Dispose();
}
{
// Index 0 is the default value of the shared component, not an actual section
for (int subSectionIndex = 0; subSectionIndex < subSectionList.Count; ++subSectionIndex)
{
var subSection = subSectionList[subSectionIndex];
if (subSection.Section == 0)
{
continue;
}
sectionQuery.SetSharedComponentFilter(subSection);
sectionBoundsQuery.SetSharedComponentFilter(subSection);
var bounds = GetBoundsAndRemove(entityManager, sectionBoundsQuery);
var entitiesInSection = sectionQuery.ToEntityArray(Allocator.TempJob);
if (entitiesInSection.Length > 0)
{
// Fetch back the external reference entity we created earlier to not disturb the mapping
var refInfoEntity = extRefInfoEntities[subSectionIndex];
entityManager.AddBuffer <ExternalEntityRef>(refInfoEntity);
var externRefs = entityManager.GetBuffer <ExternalEntityRef>(refInfoEntity);
// Store the mapping to everything in the main section
//@TODO maybe we don't need all that? is this worth worrying about?
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
ExternalEntityRef.Add(ref externRefs, new ExternalEntityRef {
entityIndex = i
});
}
var entityRemapping = entityManager.CreateEntityRemapArray(Allocator.TempJob);
// Entities will be remapped to a contiguous range in the section world, but they will
// also come with an unpredictable amount of meta entities. We have the guarantee that
// the entities in the main section won't be moved over, so there's a free range of that
// size at the end of the remapping table. So we use that range for external references.
var externEntityIndexStart = entityRemapping.Length - entitiesInMainSection.Length;
entityManager.AddComponentData(refInfoEntity,
new ExternalEntityRefInfo
{
SceneGUID = sceneGUID,
EntityIndexStart = externEntityIndexStart
});
var sectionWorld = new World("SectionWorld");
var sectionManager = sectionWorld.EntityManager;
// Insert mapping for external references, conversion world entity to virtual index in section
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
EntityRemapUtility.AddEntityRemapping(ref entityRemapping, entitiesInMainSection[i],
new Entity {
Index = i + externEntityIndexStart, Version = 1
});
}
sectionManager.MoveEntitiesFrom(entityManager, sectionQuery, entityRemapping);
AddRetainBlobAssetsEntity(sectionManager, framesToRetainBlobAssets);
// Now that all the required entities have been moved over, we can get rid of the gap between
// real entities and external references. This allows remapping during load to deal with a
// smaller remap table, containing only useful entries.
int highestEntityIndexInUse = 0;
for (int i = 0; i < externEntityIndexStart; ++i)
{
var targetIndex = entityRemapping[i].Target.Index;
if (targetIndex < externEntityIndexStart && targetIndex > highestEntityIndexInUse)
{
highestEntityIndexInUse = targetIndex;
}
}
var oldExternEntityIndexStart = externEntityIndexStart;
externEntityIndexStart = highestEntityIndexInUse + 1;
sectionManager.SetComponentData
(
EntityRemapUtility.RemapEntity(ref entityRemapping, refInfoEntity),
new ExternalEntityRefInfo
{
SceneGUID = sceneGUID,
EntityIndexStart = externEntityIndexStart
}
);
// When writing the scene, references to missing entities are set to Entity.Null by default
// (but only if they have been used, otherwise they remain untouched)
// We obviously don't want that to happen to our external references, so we add explicit mapping
// And at the same time, we put them back at the end of the effective range of real entities.
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
var src = new Entity {
Index = i + oldExternEntityIndexStart, Version = 1
};
var dst = new Entity {
Index = i + externEntityIndexStart, Version = 1
};
EntityRemapUtility.AddEntityRemapping(ref entityRemapping, src, dst);
}
// The section component is only there to break the conversion world into different sections
// We don't want to store that on the disk
//@TODO: Component should be removed but currently leads to corrupt data file. Figure out why.
//sectionManager.RemoveComponent(sectionManager.UniversalQuery, typeof(SceneSection));
var fileSize = WriteEntityScene(sectionManager, sceneGUID, subSection.Section.ToString(), settings, out var objectRefCount, out var objRefs, entityRemapping);
sectionRefObjs?.Add(objRefs);
sceneSections.Add(new SceneSectionData
{
FileSize = fileSize,
SceneGUID = sceneGUID,
ObjectReferenceCount = objectRefCount,
SubSectionIndex = subSection.Section,
BoundingVolume = bounds
});
entityRemapping.Dispose();
sectionWorld.Dispose();
}
entitiesInSection.Dispose();
}
}
{
var noSectionQuery = entityManager.CreateEntityQuery(
new EntityQueryDesc
{
None = new[] { ComponentType.ReadWrite <SceneSection>() },
Options = EntityQueryOptions.IncludePrefab | EntityQueryOptions.IncludeDisabled
}
);
if (noSectionQuery.CalculateEntityCount() != 0)
{
Debug.LogWarning($"{noSectionQuery.CalculateEntityCount()} entities in the scene '{scene.path}' had no SceneSection and as a result were not serialized at all.");
}
}
sectionQuery.Dispose();
sectionBoundsQuery.Dispose();
entitiesInMainSection.Dispose();
world.Dispose();
// Save the new header
var sceneSectionsArray = sceneSections.ToArray();
WriteHeader(sceneGUID, sceneSectionsArray, scene.name, settings.AssetImportContext);
// If we are writing assets to assets folder directly, then we need to make sure the asset database see them so they can be loaded.
if (settings.AssetImportContext == null)
{
AssetDatabase.Refresh();
}
if (disposeBlobAssetCache)
{
settings.BlobAssetStore.Dispose();
}
// Save the log of issues that happened during conversion
WriteConversionLog(sceneGUID, journalData, scene.name, settings.AssetImportContext);
return(sceneSectionsArray);
}
public static SceneData[] WriteEntityScene(Scene scene, Hash128 sceneGUID, ConversionFlags conversionFlags)
{
var world = new World("ConversionWorld");
var entityManager = world.EntityManager;
ConvertScene(scene, sceneGUID, world, conversionFlags);
EntitySceneOptimization.Optimize(world);
var sceneSections = new List <SceneData>();
var subSectionList = new List <SceneSection>();
entityManager.GetAllUniqueSharedComponentData(subSectionList);
var extRefInfoEntities = new NativeArray <Entity>(subSectionList.Count, Allocator.Temp);
NativeArray <Entity> entitiesInMainSection;
var sectionQuery = entityManager.CreateEntityQuery(
new EntityQueryDesc
{
All = new[] { ComponentType.ReadWrite <SceneSection>() },
Options = EntityQueryOptions.IncludePrefab | EntityQueryOptions.IncludeDisabled
}
);
var sectionBoundsQuery = entityManager.CreateEntityQuery(
new EntityQueryDesc
{
All = new[] { ComponentType.ReadWrite <SceneBoundingVolume>(), ComponentType.ReadWrite <SceneSection>() },
Options = EntityQueryOptions.IncludePrefab | EntityQueryOptions.IncludeDisabled
}
);
{
var section = new SceneSection {
SceneGUID = sceneGUID, Section = 0
};
sectionQuery.SetFilter(new SceneSection {
SceneGUID = sceneGUID, Section = 0
});
sectionBoundsQuery.SetFilter(new SceneSection {
SceneGUID = sceneGUID, Section = 0
});
entitiesInMainSection = sectionQuery.ToEntityArray(Allocator.TempJob);
var bounds = GetBoundsAndDestroy(entityManager, sectionBoundsQuery);
// Each section will be serialized in its own world, entities that don't have a section are part of the main scene.
// An entity that holds the array of external references to the main scene is required for each section.
// We need to create them all before we start moving entities to section scenes,
// otherwise they would reuse entities that have been moved and mess up the remapping tables.
for (int sectionIndex = 1; sectionIndex < subSectionList.Count; ++sectionIndex)
{
if (subSectionList[sectionIndex].Section == 0)
{
// Main section, the only one that doesn't need an external ref array
continue;
}
var extRefInfoEntity = entityManager.CreateEntity();
entityManager.AddSharedComponentData(extRefInfoEntity, subSectionList[sectionIndex]);
extRefInfoEntities[sectionIndex] = extRefInfoEntity;
}
// Public references array, only on the main section.
var refInfoEntity = entityManager.CreateEntity();
entityManager.AddBuffer <PublicEntityRef>(refInfoEntity);
entityManager.AddSharedComponentData(refInfoEntity, section);
var publicRefs = entityManager.GetBuffer <PublicEntityRef>(refInfoEntity);
// entityManager.Debug.CheckInternalConsistency();
//@TODO do we need to keep this index? doesn't carry any additional info
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
PublicEntityRef.Add(ref publicRefs,
new PublicEntityRef {
entityIndex = i, targetEntity = entitiesInMainSection[i]
});
}
Debug.Assert(publicRefs.Length == entitiesInMainSection.Length);
// Save main section
var sectionWorld = new World("SectionWorld");
var sectionManager = sectionWorld.EntityManager;
var entityRemapping = entityManager.CreateEntityRemapArray(Allocator.TempJob);
sectionManager.MoveEntitiesFrom(entityManager, sectionQuery, entityRemapping);
// The section component is only there to break the conversion world into different sections
// We don't want to store that on the disk
//@TODO: Component should be removed but currently leads to corrupt data file. Figure out why.
//sectionManager.RemoveComponent(sectionManager.UniversalQuery, typeof(SceneSection));
var sectionFileSize = WriteEntityScene(sectionManager, sceneGUID, "0");
sceneSections.Add(new SceneData
{
FileSize = sectionFileSize,
SceneGUID = sceneGUID,
SharedComponentCount = sectionManager.GetSharedComponentCount() - 1,
SubSectionIndex = 0,
BoundingVolume = bounds
});
entityRemapping.Dispose();
sectionWorld.Dispose();
}
{
// Index 0 is the default value of the shared component, not an actual section
for (int subSectionIndex = 0; subSectionIndex < subSectionList.Count; ++subSectionIndex)
{
var subSection = subSectionList[subSectionIndex];
if (subSection.Section == 0)
{
continue;
}
sectionQuery.SetFilter(subSection);
sectionBoundsQuery.SetFilter(subSection);
var bounds = GetBoundsAndDestroy(entityManager, sectionBoundsQuery);
var entitiesInSection = sectionQuery.ToEntityArray(Allocator.TempJob);
if (entitiesInSection.Length > 0)
{
// Fetch back the external reference entity we created earlier to not disturb the mapping
var refInfoEntity = extRefInfoEntities[subSectionIndex];
entityManager.AddBuffer <ExternalEntityRef>(refInfoEntity);
var externRefs = entityManager.GetBuffer <ExternalEntityRef>(refInfoEntity);
// Store the mapping to everything in the main section
//@TODO maybe we don't need all that? is this worth worrying about?
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
ExternalEntityRef.Add(ref externRefs, new ExternalEntityRef {
entityIndex = i
});
}
var entityRemapping = entityManager.CreateEntityRemapArray(Allocator.TempJob);
// Entities will be remapped to a contiguous range in the section world, but they will
// also come with an unpredictable amount of meta entities. We have the guarantee that
// the entities in the main section won't be moved over, so there's a free range of that
// size at the end of the remapping table. So we use that range for external references.
var externEntityIndexStart = entityRemapping.Length - entitiesInMainSection.Length;
entityManager.AddComponentData(refInfoEntity,
new ExternalEntityRefInfo
{
SceneGUID = sceneGUID,
EntityIndexStart = externEntityIndexStart
});
var sectionWorld = new World("SectionWorld");
var sectionManager = sectionWorld.EntityManager;
// Insert mapping for external references, conversion world entity to virtual index in section
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
EntityRemapUtility.AddEntityRemapping(ref entityRemapping, entitiesInMainSection[i],
new Entity {
Index = i + externEntityIndexStart, Version = 1
});
}
sectionManager.MoveEntitiesFrom(entityManager, sectionQuery, entityRemapping);
// Now that all the required entities have been moved over, we can get rid of the gap between
// real entities and external references. This allows remapping during load to deal with a
// smaller remap table, containing only useful entries.
int highestEntityIndexInUse = 0;
for (int i = 0; i < externEntityIndexStart; ++i)
{
var targetIndex = entityRemapping[i].Target.Index;
if (targetIndex < externEntityIndexStart && targetIndex > highestEntityIndexInUse)
{
highestEntityIndexInUse = targetIndex;
}
}
var oldExternEntityIndexStart = externEntityIndexStart;
externEntityIndexStart = highestEntityIndexInUse + 1;
sectionManager.SetComponentData
(
EntityRemapUtility.RemapEntity(ref entityRemapping, refInfoEntity),
new ExternalEntityRefInfo
{
SceneGUID = sceneGUID,
EntityIndexStart = externEntityIndexStart
}
);
// When writing the scene, references to missing entities are set to Entity.Null by default
// (but only if they have been used, otherwise they remain untouched)
// We obviously don't want that to happen to our external references, so we add explicit mapping
// And at the same time, we put them back at the end of the effective range of real entities.
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
var src = new Entity {
Index = i + oldExternEntityIndexStart, Version = 1
};
var dst = new Entity {
Index = i + externEntityIndexStart, Version = 1
};
EntityRemapUtility.AddEntityRemapping(ref entityRemapping, src, dst);
}
// The section component is only there to break the conversion world into different sections
// We don't want to store that on the disk
//@TODO: Component should be removed but currently leads to corrupt data file. Figure out why.
//sectionManager.RemoveComponent(sectionManager.UniversalQuery, typeof(SceneSection));
var fileSize = WriteEntityScene(sectionManager, sceneGUID, subSection.Section.ToString(), entityRemapping);
sceneSections.Add(new SceneData
{
FileSize = fileSize,
SceneGUID = sceneGUID,
SharedComponentCount = sectionManager.GetSharedComponentCount() - 1,
SubSectionIndex = subSection.Section,
BoundingVolume = bounds
});
entityRemapping.Dispose();
sectionWorld.Dispose();
}
entitiesInSection.Dispose();
}
}
{
var noSectionQuery = entityManager.CreateEntityQuery(
new EntityQueryDesc
{
None = new[] { ComponentType.ReadWrite <SceneSection>() },
Options = EntityQueryOptions.IncludePrefab | EntityQueryOptions.IncludeDisabled
}
);
if (noSectionQuery.CalculateLength() != 0)
{
Debug.LogWarning($"{noSectionQuery.CalculateLength()} entities in the scene '{scene.path}' had no SceneSection and as a result were not serialized at all.");
}
}
sectionQuery.Dispose();
sectionBoundsQuery.Dispose();
entitiesInMainSection.Dispose();
world.Dispose();
// Save the new header
var header = ScriptableObject.CreateInstance <SubSceneHeader>();
header.Sections = sceneSections.ToArray();
WriteHeader(sceneGUID, header);
return(sceneSections.ToArray());
}
public static SceneData[] WriteEntityScene(Scene scene, Hash128 sceneGUID, ConversionFlags conversionFlags)
{
var world = new World("ConversionWorld");
var entityManager = world.GetOrCreateManager <EntityManager>();
var boundsEntity = entityManager.CreateEntity(typeof(SceneBoundingVolume));
entityManager.SetComponentData(boundsEntity, new SceneBoundingVolume {
Value = MinMaxAABB.Empty
});
ConvertScene(scene, sceneGUID, world, conversionFlags);
EntitySceneOptimization.Optimize(world);
var bounds = entityManager.GetComponentData <SceneBoundingVolume>(boundsEntity).Value;
entityManager.DestroyEntity(boundsEntity);
var sceneSections = new List <SceneData>();
var subSectionList = new List <SceneSection>();
entityManager.GetAllUniqueSharedComponentData(subSectionList);
var extRefInfoEntities = new NativeArray <Entity>(subSectionList.Count, Allocator.Temp);
NativeArray <Entity> entitiesInMainSection;
var sectionGrp = entityManager.CreateComponentGroup(
new EntityArchetypeQuery
{
All = new[] { ComponentType.ReadWrite <SceneSection>() },
Options = EntityArchetypeQueryOptions.IncludePrefab | EntityArchetypeQueryOptions.IncludeDisabled
}
);
{
var section = new SceneSection {
SceneGUID = sceneGUID, Section = 0
};
sectionGrp.SetFilter(new SceneSection {
SceneGUID = sceneGUID, Section = 0
});
entitiesInMainSection = sectionGrp.ToEntityArray(Allocator.TempJob);
// Each section will be serialized in its own world, entities that don't have a section are part of the main scene.
// An entity that holds the array of external references to the main scene is required for each section.
// We need to create them all before we start moving entities to section scenes,
// otherwise they would reuse entities that have been moved and mess up the remapping tables.
for (int sectionIndex = 1; sectionIndex < subSectionList.Count; ++sectionIndex)
{
var extRefInfoEntity = entityManager.CreateEntity();
entityManager.AddSharedComponentData(extRefInfoEntity, subSectionList[sectionIndex]);
extRefInfoEntities[sectionIndex] = extRefInfoEntity;
}
// Public references array, only on the main section.
var refInfoEntity = entityManager.CreateEntity();
entityManager.AddBuffer <PublicEntityRef>(refInfoEntity);
entityManager.AddSharedComponentData(refInfoEntity, section);
var publicRefs = entityManager.GetBuffer <PublicEntityRef>(refInfoEntity);
// entityManager.Debug.CheckInternalConsistency();
//@TODO do we need to keep this index? doesn't carry any additional info
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
PublicEntityRef.Add(ref publicRefs,
new PublicEntityRef {
entityIndex = i, targetEntity = entitiesInMainSection[i]
});
}
Debug.Assert(publicRefs.Length == entitiesInMainSection.Length);
// Save main section
var sectionWorld = new World("SectionWorld");
var sectionManager = sectionWorld.GetOrCreateManager <EntityManager>();
var entityRemapping = entityManager.CreateEntityRemapArray(Allocator.TempJob);
sectionManager.MoveEntitiesFrom(entityManager, sectionGrp, entityRemapping);
// The section component is only there to break the conversion world into different sections
// We don't want to store that on the disk
//@TODO: Component should be removed but currently leads to corrupt data file. Figure out why.
//sectionManager.RemoveComponent(sectionManager.UniversalGroup, typeof(SceneSection));
var sectionFileSize = WriteEntityScene(sectionManager, sceneGUID, "0");
sceneSections.Add(new SceneData
{
FileSize = sectionFileSize,
SceneGUID = sceneGUID,
SharedComponentCount = sectionManager.GetSharedComponentCount() - 1,
SubSectionIndex = 0,
BoundingVolume = bounds
});
entityRemapping.Dispose();
sectionWorld.Dispose();
}
{
// Index 0 is the default value of the shared component, not an actual section
for (int subSectionIndex = 0; subSectionIndex < subSectionList.Count; ++subSectionIndex)
{
var subSection = subSectionList[subSectionIndex];
if (subSection.Section == 0)
{
continue;
}
sectionGrp.SetFilter(subSection);
var entitiesInSection = sectionGrp.ToEntityArray(Allocator.TempJob);
if (entitiesInSection.Length > 0)
{
// Fetch back the external reference entity we created earlier to not disturb the mapping
var refInfoEntity = extRefInfoEntities[subSectionIndex];
entityManager.AddBuffer <ExternalEntityRef>(refInfoEntity);
var externRefs = entityManager.GetBuffer <ExternalEntityRef>(refInfoEntity);
// Store the mapping to everything in the main section
//@TODO maybe we don't need all that? is this worth worrying about?
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
ExternalEntityRef.Add(ref externRefs, new ExternalEntityRef {
entityIndex = i
});
}
// Entities will be remapped to a contiguous range in the section world,
// so any range after that is fine for the external references
//@TODO why are we not mapping anything to entity 0? we use the range [1;count], hence +1
var externEntityIndexStart = entitiesInSection.Length + 1;
entityManager.AddComponentData(refInfoEntity,
new ExternalEntityRefInfo
{
SceneGUID = sceneGUID,
EntityIndexStart = externEntityIndexStart
});
var sectionWorld = new World("SectionWorld");
var sectionManager = sectionWorld.GetOrCreateManager <EntityManager>();
var entityRemapping = entityManager.CreateEntityRemapArray(Allocator.TempJob);
// Insert mapping for external references, conversion world entity to virtual index in section
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
EntityRemapUtility.AddEntityRemapping(ref entityRemapping, entitiesInMainSection[i],
new Entity {
Index = i + externEntityIndexStart, Version = 1
});
}
sectionManager.MoveEntitiesFrom(entityManager, sectionGrp, entityRemapping);
// When writing the scene, references to missing entities are set to Entity.Null by default
// We obviously don't want that to happen to our external references, so we add explicit mapping
for (int i = 0; i < entitiesInMainSection.Length; ++i)
{
var entity = new Entity {
Index = i + externEntityIndexStart, Version = 1
};
EntityRemapUtility.AddEntityRemapping(ref entityRemapping, entity, entity);
}
// The section component is only there to break the conversion world into different sections
// We don't want to store that on the disk
//@TODO: Component should be removed but currently leads to corrupt data file. Figure out why.
//sectionManager.RemoveComponent(sectionManager.UniversalGroup, typeof(SceneSection));
var fileSize = WriteEntityScene(sectionManager, sceneGUID, subSection.Section.ToString(), entityRemapping);
sceneSections.Add(new SceneData
{
FileSize = fileSize,
SceneGUID = sceneGUID,
SharedComponentCount = sectionManager.GetSharedComponentCount() - 1,
SubSectionIndex = subSection.Section,
BoundingVolume = bounds
});
entityRemapping.Dispose();
sectionWorld.Dispose();
}
entitiesInSection.Dispose();
}
}
{
var noSectionGrp = entityManager.CreateComponentGroup(
new EntityArchetypeQuery
{
None = new[] { ComponentType.ReadWrite <SceneSection>() },
Options = EntityArchetypeQueryOptions.IncludePrefab | EntityArchetypeQueryOptions.IncludeDisabled
}
);
if (noSectionGrp.CalculateLength() != 0)
{
Debug.LogWarning($"{noSectionGrp.CalculateLength()} entities in the scene '{scene.path}' had no SceneSection and as a result were not serialized at all.");
}
}
sectionGrp.Dispose();
entitiesInMainSection.Dispose();
world.Dispose();
// Save the new header
var header = ScriptableObject.CreateInstance <SubSceneHeader>();
header.Sections = sceneSections.ToArray();
WriteHeader(sceneGUID, header);
return(sceneSections.ToArray());
}