Struct ArchetypeChunk

A block of unmanaged memory containing the components for entities sharing the same Archetype.

Namespace: Unity.Entities

Syntax

public struct ArchetypeChunk : IEquatable<ArchetypeChunk>

Properties

Archetype

The archetype of the entities stored in this chunk.

Declaration

public EntityArchetype Archetype { get; }

Property Value

Type	Description
EntityArchetype

Remarks

All entities in a chunk must have the same Archetype.

Capacity

The number of entities that can fit in this chunk.

Declaration

public int Capacity { get; }

Property Value

Type	Description
Int32

Remarks

The capacity of a chunk depends on the size of the components making up the Archetype of the entities stored in the chunk.

ChunkEntityCount

The number of entities currently stored in the chunk (ignoring any sub-batching)

Declaration

public int ChunkEntityCount { get; }

Property Value

Type	Description
Int32

Count

If the ArchetypeChunk is not sub-batched, returns the number of entities in the chunk. Otherwise, returns the number of entities referenced by this batch.

Declaration

public int Count { get; }

Property Value

Type	Description
Int32

Full

Whether this chunk is exactly full.

Declaration

public bool Full { get; }

Property Value

Type	Description
Boolean

Null

A special "null" ArchetypeChunk that you can use to test whether ArchetypeChunk instances are valid.

Declaration

public static ArchetypeChunk Null { get; }

Property Value

Type	Description
ArchetypeChunk

Remarks

An ArchetypeChunk struct that refers to a chunk of memory that has been freed will be equal to this "null" ArchetypeChunk instance.

Methods

DidChange(DynamicComponentTypeHandle, UInt32)

Reports whether the data in any of IComponentData components in the chunk, of the type identified by chunkComponentType, could have changed since the specified version.

Declaration

public bool DidChange(DynamicComponentTypeHandle chunkComponentType, uint version)

Parameters

Type	Name	Description
DynamicComponentTypeHandle	chunkComponentType	An object containing type and job safety information. Create this object by calling GetDynamicComponentTypeHandle(ComponentType) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.
UInt32	version	The version to compare. In a system, this parameter should be set to the current LastSystemVersion at the time the job is run or scheduled.

Returns

Type	Description
Boolean	True, if the version number stored in the chunk for this component is more recent than the version passed to the version parameter.

Remarks

When you access a component in a chunk with write privileges, the ECS framework updates the change version of that component type to the current GlobalSystemVersion value. Since every system stores the global system version in its LastSystemVersion field when it updates, you can compare these two versions with this function in order to determine whether the data of components in this chunk could have changed since the last time that system ran.

Note that for efficiency, the change version applies to whole chunks not individual entities. The change version is updated even when another job or system that has declared write access to a component does not actually change the component value.

DidChange<T>(BufferTypeHandle<T>, UInt32)

Reports whether any of the data in dynamic buffer components in the chunk, of the type identified by chunkBufferTypeHandle, could have changed since the specified version.

Declaration

public bool DidChange<T>(BufferTypeHandle<T> chunkBufferTypeHandle, uint version)
    where T : struct, IBufferElementData

Parameters

Type	Name	Description
BufferTypeHandle<T>	chunkBufferTypeHandle	An object containing type and job safety information. Create this object by calling GetBufferTypeHandle<T>(Boolean) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.
UInt32	version	The version to compare. In a system, this parameter should be set to the current LastSystemVersion at the time the job is run or scheduled.

Returns

Type	Description
Boolean	True, if the version number stored in the chunk for this component is more recent than the version passed to the version parameter.

Type Parameters

Name	Description
T	The data type of the elements in the dynamic buffer.

Remarks

When you access a component in a chunk with write privileges, the ECS framework updates the change version of that component type to the current GlobalSystemVersion value. Since every system stores the global system version in its LastSystemVersion field when it updates, you can compare these two versions with this function in order to determine whether the data of components in this chunk could have changed since the last time that system ran.

Note that for efficiency, the change version applies to whole chunks not individual entities. The change version is updated even when another job or system that has declared write access to a component does not actually change the component value.

DidChange<T>(ComponentTypeHandle<T>, UInt32)

Reports whether the data in any of IComponentData components in the chunk, of the type identified by chunkComponentTypeHandle, could have changed since the specified version.

Declaration

public bool DidChange<T>(ComponentTypeHandle<T> chunkComponentTypeHandle, uint version)
    where T : IComponentData

Parameters

Type	Name	Description
ComponentTypeHandle<T>	chunkComponentTypeHandle	An object containing type and job safety information. Create this object by calling GetComponentTypeHandle<T>(Boolean) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.
UInt32	version	The version to compare. In a system, this parameter should be set to the current LastSystemVersion at the time the job is run or scheduled.

Returns

Type	Description
Boolean	True, if the version number stored in the chunk for this component is more recent than the version passed to the version parameter.

Type Parameters

Name	Description
T	The component type.

Remarks

When you access a component in a chunk with write privileges, the ECS framework updates the change version of that component type to the current GlobalSystemVersion value. Since every system stores the global system version in its LastSystemVersion field when it updates, you can compare these two versions with this function in order to determine whether the data of components in this chunk could have changed since the last time that system ran.

Note that for efficiency, the change version applies to whole chunks not individual entities. The change version is updated even when another job or system that has declared write access to a component does not actually change the component value.

DidChange<T>(SharedComponentTypeHandle<T>, UInt32)

Reports whether the value of shared components associated with the chunk, of the type identified by chunkSharedComponentData, could have changed since the specified version.

Declaration

public bool DidChange<T>(SharedComponentTypeHandle<T> chunkSharedComponentData, uint version)
    where T : struct, ISharedComponentData

Parameters

Type	Name	Description
SharedComponentTypeHandle<T>	chunkSharedComponentData	An object containing type and job safety information. Create this object by calling GetSharedComponentTypeHandle<T>() immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.
UInt32	version	The version to compare. In a system, this parameter should be set to the current LastSystemVersion at the time the job is run or scheduled.

Returns

Type	Description
Boolean	True, if the version number stored in the chunk for this component is more recent than the version passed to the version

Type Parameters

Name	Description
T	The data type of the shared component.

Remarks

Shared components behave differently than other types of components in terms of change versioning because changing the value of a shared component can move an entity to a different chunk. If the change results in an entity moving to a different chunk, then only the order version is updated (for both the original and the receiving chunk). If you change the shared component value for all entities in a chunk at once, the change version for that chunk is updated. The order version is unaffected.

Note that for efficiency, the change version applies to whole chunks not individual entities. The change version is updated even when another job or system that has declared write access to a component does not actually change the component value.

DidOrderChange(UInt32)

Reports whether a structural change has occured in this chunk since the specified version.

Declaration

public bool DidOrderChange(uint version)

Parameters

Type	Name	Description
UInt32	version	The version number to compare.

Returns

Type	Description
Boolean	True, if the order version number has changed since the specified version.

Remarks

Typically, you set the version parameter to the LastSystemVersion of a system to detect whether the order version has changed since the last time that system ran.

Equals(Object)

Two ArchetypeChunk instances are equal if they reference the same block of chunk memory.

Declaration

public override bool Equals(object compare)

Parameters

Type	Name	Description
Object	compare	An object

Returns

Type	Description
Boolean	True if compare is an ArchetypeChunk instance that references the same memory, or both contain null memory references; otherwise false.

Overrides

ValueType.Equals(Object)

Equals(ArchetypeChunk)

Two ArchetypeChunk instances are equal if they reference the same block of chunk and entity component store memory.

Declaration

public bool Equals(ArchetypeChunk archetypeChunk)

Parameters

Type	Name	Description
ArchetypeChunk	archetypeChunk	Another ArchetypeChunk instance

Returns

Type	Description
Boolean	True, if both ArchetypeChunk instances reference the same memory or both contain null memory references.

GetBufferAccessor<T>(BufferTypeHandle<T>)

Declaration

public BufferAccessor<T> GetBufferAccessor<T>(BufferTypeHandle<T> bufferComponentTypeHandle)
    where T : struct, IBufferElementData

Parameters

Type	Name	Description
BufferTypeHandle<T>	bufferComponentTypeHandle

Returns

Type	Description
BufferAccessor<T>

Type Parameters

Name	Description
T

GetChangeVersion(DynamicComponentTypeHandle)

Gets the change version number assigned to the specified type of component in this chunk.

Declaration

public uint GetChangeVersion(DynamicComponentTypeHandle chunkComponentType)

Parameters

Type	Name	Description
DynamicComponentTypeHandle	chunkComponentType	An object containing type and job safety information. Create this object by calling GetDynamicComponentTypeHandle(ComponentType) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
UInt32	The current version number of the specified component, which is the version set the last time a system accessed a component of that type in this chunk with write privileges. Returns 0 if the chunk does not contain a component of the specified type.

Remarks

Every time a system accesses components in a chunk, the system updates the change version of any component types to which it has write access with the current GlobalSystemVersion. (A system updates the version whether or not you actually write any component data -- always specify read-only access when possible.)

You can use the change version to filter out entities that have not changed since the last time a system ran. Implement change filtering using one of the following:

• Entities.ForEach.WithChangeFilter(ComponentType)
• AddChangedVersionFilter(ComponentType)
• DidChange<T>(ComponentTypeHandle<T>, UInt32) in an IJobChunk job.

Note that change versions are stored at the chunk level. Thus when you use change filtering, the query system excludes or includes whole chunks not individual entities.

GetChangeVersion<T>(BufferTypeHandle<T>)

Gets the change version number assigned to the specified type of dynamic buffer component in this chunk.

Declaration

public uint GetChangeVersion<T>(BufferTypeHandle<T> chunkBufferTypeHandle)
    where T : struct, IBufferElementData

Parameters

Type	Name	Description
BufferTypeHandle<T>	chunkBufferTypeHandle	An object containing type and job safety information. Create this object by calling GetBufferTypeHandle<T>(Boolean) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
UInt32	The current version number of the specified dynamic buffer type, which is the version set the last time a system accessed a buffer component of that type in this chunk with write privileges. Returns 0 if the chunk does not contain a buffer component of the specified type.

Type Parameters

Name	Description
T	The data type of component T.

Remarks

Every time a system accesses components in a chunk, the system updates the change version of any component types to which it has write access with the current GlobalSystemVersion. (A system updates the version whether or not you actually write any component data -- always specify read-only access when possible.)

You can use the change version to filter out entities that have not changed since the last time a system ran. Implement change filtering using one of the following:

• Entities.ForEach.WithChangeFilter(ComponentType)
• AddChangedVersionFilter(ComponentType)
• DidChange<T>(ComponentTypeHandle<T>, UInt32) in an IJobChunk job.

Note that change versions are stored at the chunk level. Thus if you use change filtering, the query system excludes or includes whole chunks not individual entities.

GetChangeVersion<T>(ComponentTypeHandle<T>)

Gets the change version number assigned to the specified type of component in this chunk.

Declaration

public uint GetChangeVersion<T>(ComponentTypeHandle<T> chunkComponentTypeHandle)
    where T : IComponentData

Parameters

Type	Name	Description
ComponentTypeHandle<T>	chunkComponentTypeHandle	An object containing type and job safety information. Create this object by calling GetComponentTypeHandle<T>(Boolean) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
UInt32	The current version number of the specified component, which is the version set the last time a system accessed a component of that type in this chunk with write privileges. Returns 0 if the chunk does not contain a component of the specified type.

Type Parameters

Name	Description
T	The data type of component T.

Remarks

Every time a system accesses components in a chunk, the system updates the change version of any component types to which it has write access with the current GlobalSystemVersion. (A system updates the version whether or not you actually write any component data -- always specify read-only access when possible.)

You can use the change version to filter out entities that have not changed since the last time a system ran. Implement change filtering using one of the following:

• Entities.ForEach.WithChangeFilter(ComponentType)
• AddChangedVersionFilter(ComponentType)
• DidChange<T>(ComponentTypeHandle<T>, UInt32) in an IJobChunk job.

Note that change versions are stored at the chunk level. Thus when you use change filtering, the query system excludes or includes whole chunks not individual entities.

GetChangeVersion<T>(SharedComponentTypeHandle<T>)

Gets the change version number assigned to the specified type of shared component in this chunk.

Declaration

public uint GetChangeVersion<T>(SharedComponentTypeHandle<T> chunkSharedComponentData)
    where T : struct, ISharedComponentData

Parameters

Type	Name	Description
SharedComponentTypeHandle<T>	chunkSharedComponentData	An object containing type and job safety information. Create this object by calling GetSharedComponentTypeHandle<T>() immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
UInt32	The current version number of the specified shared component, which is the version set the last time a system accessed a component of that type in this chunk with write privileges. Returns 0 if the chunk does not contain a shared component of the specified type.

Type Parameters

Name	Description
T	The data type of shared component T.

Remarks

Shared components behave differently than other types of components in terms of change versioning because changing the value of a shared component can move an entity to a different chunk. If the change results in an entity moving to a different chunk, then only the order version is updated (for both the original and the receiving chunk). If you change the shared component value for all entities in a chunk at once, the entities remain in their current chunk. The change version for that chunk is updated and the order version is unaffected.

GetChunkComponentData<T>(ComponentTypeHandle<T>)

Gets the value of a chunk component.

Declaration

public T GetChunkComponentData<T>(ComponentTypeHandle<T> chunkComponentTypeHandle)
    where T : struct

Parameters

Type	Name	Description
ComponentTypeHandle<T>	chunkComponentTypeHandle	An object containing type and job safety information. Create this object by calling GetComponentTypeHandle<T>(Boolean) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
T	A copy of the chunk component.

Type Parameters

Name	Description
T	The data type of the chunk component.

GetDynamicComponentDataArrayReinterpret<T>(DynamicComponentTypeHandle, Int32)

Declaration

public NativeArray<T> GetDynamicComponentDataArrayReinterpret<T>(DynamicComponentTypeHandle chunkComponentType, int expectedTypeSize)
    where T : struct

Parameters

Type	Name	Description
DynamicComponentTypeHandle	chunkComponentType
Int32	expectedTypeSize

Returns

Type	Description
NativeArray<T>

Type Parameters

Name	Description
T

Exceptions

Type	Condition
ArgumentException
InvalidOperationException

GetHashCode()

Computes a hashcode to support hash-based collections.

Declaration

public override int GetHashCode()

Returns

Type	Description
Int32	The computed hash.

Overrides

ValueType.GetHashCode()

GetManagedComponentAccessor<T>(ComponentTypeHandle<T>, EntityManager)

Declaration

public ManagedComponentAccessor<T> GetManagedComponentAccessor<T>(ComponentTypeHandle<T> componentTypeHandle, EntityManager manager)
    where T : class

Parameters

Type	Name	Description
ComponentTypeHandle<T>	componentTypeHandle
EntityManager	manager

Returns

Type	Description
ManagedComponentAccessor<T>

Type Parameters

Name	Description
T

GetNativeArray(EntityTypeHandle)

Provides a native array interface to entity instances stored in this chunk.

Declaration

public NativeArray<Entity> GetNativeArray(EntityTypeHandle entityTypeHandle)

Parameters

Type	Name	Description
EntityTypeHandle	entityTypeHandle	An object containing type and job safety information. Create this object by calling GetEntityTypeHandle() immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
NativeArray<Entity>	A native array containing the entities in the chunk.

Remarks

The native array returned by this method references existing data, not a copy.

GetNativeArray<T>(ComponentTypeHandle<T>)

Provides a native array interface to components stored in this chunk.

Declaration

public NativeArray<T> GetNativeArray<T>(ComponentTypeHandle<T> chunkComponentTypeHandle)
    where T : struct, IComponentData

Parameters

Type	Name	Description
ComponentTypeHandle<T>	chunkComponentTypeHandle	An object containing type and job safety information. Create this object by calling GetComponentTypeHandle<T>(Boolean)immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
NativeArray<T>	A native array containing the components in the chunk.

Type Parameters

Name	Description
T	The data type of the component.

Remarks

The native array returned by this method references existing data, not a copy.

Exceptions

Type	Condition
ArgumentException	If you call this function on a "tag" component type (which is an empty component with no fields).

GetOrderVersion()

Gets the order version number assigned to this chunk.

Declaration

public uint GetOrderVersion()

Returns

Type	Description
UInt32	The current order version of this chunk.

Remarks

Every time you perform a structural change affecting a chunk, the ECS framework updates the order version of the chunk to the current GlobalSystemVersion value. Structural changes include adding and removing entities, adding or removing the component of an entity, and changing the value of a shared component (except when you change the value for all entities in a chunk at the same time).

GetSharedComponentData<T>(SharedComponentTypeHandle<T>, EntityManager)

Gets the current value of a shared component.

Declaration

public T GetSharedComponentData<T>(SharedComponentTypeHandle<T> chunkSharedComponentData, EntityManager entityManager)
    where T : struct, ISharedComponentData

Parameters

Type	Name	Description
SharedComponentTypeHandle<T>	chunkSharedComponentData	An object containing type and job safety information. Create this object by calling GetSharedComponentTypeHandle<T>() immediately before calling this function.
EntityManager	entityManager	An EntityManager instance.

Returns

Type	Description
T	The shared component value.

Type Parameters

Name	Description
T	The data type of the shared component.

Remarks

You cannot call this function inside a job.

GetSharedComponentIndex<T>(SharedComponentTypeHandle<T>)

Gets the index into the array of unique values for the specified shared component.

Declaration

public int GetSharedComponentIndex<T>(SharedComponentTypeHandle<T> chunkSharedComponentData)
    where T : struct, ISharedComponentData

Parameters

Type	Name	Description
SharedComponentTypeHandle<T>	chunkSharedComponentData	An object containing type and job safety information. Create this object by calling GetSharedComponentTypeHandle<T>() immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
Int32	The index value, or -1 if the chunk does not contain a shared component of the specified type.

Type Parameters

Name	Description
T	The data type of the shared component.

Remarks

Because shared components can contain managed types, you can only access the value index of a shared component inside a job, not the value itself. The index value indexes the array returned by GetAllUniqueSharedComponentData<T>(List<T>). If desired, you can create a native array that mirrors your unique value list, but which contains only unmanaged, blittable data and pass that into an IJobChunk job. The unique value list and a specific index is only valid until a structural change occurs.

Has(DynamicComponentTypeHandle)

Declaration

public bool Has(DynamicComponentTypeHandle chunkComponentType)

Parameters

Type	Name	Description
DynamicComponentTypeHandle	chunkComponentType

Returns

Type	Description
Boolean

Has<T>(BufferTypeHandle<T>)

Reports whether this chunk contains a dynamic buffer containing the specified component type.

Declaration

public bool Has<T>(BufferTypeHandle<T> chunkBufferTypeHandle)
    where T : struct, IBufferElementData

Parameters

Type	Name	Description
BufferTypeHandle<T>	chunkBufferTypeHandle	An object containing type and job safety information. Create this object by calling GetBufferTypeHandle<T>(Boolean) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
Boolean	True, if this chunk contains an array of the dynamic buffers containing the specified component type.

Type Parameters

Name	Description
T	The data type of the component stored in the dynamic buffer.

Remarks

When an EntityQuery includes optional dynamic buffer types (with Any), some chunks returned by the query may have these dynamic buffers components and some may not. Use this function to determine whether or not the current chunk contains one of these optional dynamic buffers.

Has<T>(ComponentTypeHandle<T>)

Reports whether this chunk contains the specified component type.

Declaration

public bool Has<T>(ComponentTypeHandle<T> chunkComponentTypeHandle)
    where T : IComponentData

Parameters

Type	Name	Description
ComponentTypeHandle<T>	chunkComponentTypeHandle	An object containing type and job safety information. Create this object by calling GetComponentTypeHandle<T>(Boolean) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
Boolean	True, if this chunk contains an array of the specified component type.

Type Parameters

Name	Description
T	The data type of the component.

Remarks

When an EntityQuery includes optional components (using Any), some chunks returned by the query may contain such components and some may not. Use this function to determine whether or not the current chunk contains one of these optional component types.

Has<T>(SharedComponentTypeHandle<T>)

Reports whether this chunk contains a shared component of the specified component type.

Declaration

public bool Has<T>(SharedComponentTypeHandle<T> chunkComponentTypeHandle)
    where T : struct, ISharedComponentData

Parameters

Type	Name	Description
SharedComponentTypeHandle<T>	chunkComponentTypeHandle	An object containing type and job safety information. Create this object by calling GetSharedComponentTypeHandle<T>() immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
Boolean	True, if this chunk contains a shared component of the specified type.

Type Parameters

Name	Description
T	The data type of the shared component.

Remarks

When an EntityQuery includes optional components used as shared components (with Any), some chunks returned by the query may have these shared components and some may not. Use this function to determine whether or not the current chunk contains one of these optional component types as a shared component.

HasChunkComponent<T>(ComponentTypeHandle<T>)

Reports whether this chunk contains a chunk component of the specified component type.

Declaration

public bool HasChunkComponent<T>(ComponentTypeHandle<T> chunkComponentTypeHandle)
    where T : struct, IComponentData

Parameters

Type	Name	Description
ComponentTypeHandle<T>	chunkComponentTypeHandle	An object containing type and job safety information. Create this object by calling GetComponentTypeHandle<T>(Boolean) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.

Returns

Type	Description
Boolean	True, if this chunk contains a chunk component of the specified type.

Type Parameters

Name	Description
T	The data type of the chunk component.

Remarks

When an EntityQuery includes optional components used as chunk components (with Any), some chunks returned by the query may have these chunk components and some may not. Use this function to determine whether or not the current chunk contains one of these optional component types as a chunk component.

Invalid()

Reports whether this ArchetypeChunk instance is invalid.

Declaration

public bool Invalid()

Returns

Type	Description
Boolean	True, if no Archetype is associated with the this ArchetypeChunk instance.

NumSharedComponents()

The number of shared components in the archetype associated with this chunk.

Declaration

public int NumSharedComponents()

Returns

Type	Description
Int32	The shared component count.

SetChunkComponentData<T>(ComponentTypeHandle<T>, T)

Sets the value of a chunk component.

Declaration

public void SetChunkComponentData<T>(ComponentTypeHandle<T> chunkComponentTypeHandle, T value)
    where T : struct

Parameters

Type	Name	Description
ComponentTypeHandle<T>	chunkComponentTypeHandle	An object containing type and job safety information. Create this object by calling GetComponentTypeHandle<T>(Boolean) immediately before scheduling a job. Pass the object to a job using a public field you define as part of the job struct.
T	value	A struct of type T containing the new values for the chunk component.

Type Parameters

Name	Description
T	The data type of the chunk component.

Operators

Equality(ArchetypeChunk, ArchetypeChunk)

Two ArchetypeChunk instances are equal if they reference the same block of chunk and entity component store memory.

Declaration

public static bool operator ==(ArchetypeChunk lhs, ArchetypeChunk rhs)

Parameters

Type	Name	Description
ArchetypeChunk	lhs	An ArchetypeChunk
ArchetypeChunk	rhs	Another ArchetypeChunk

Returns

Type	Description
Boolean	True, if both ArchetypeChunk instances reference the same memory, or both contain null memory references.

Inequality(ArchetypeChunk, ArchetypeChunk)

Two ArchetypeChunk instances are only equal if they reference the same block of chunk and entity component store memory.

Declaration

public static bool operator !=(ArchetypeChunk lhs, ArchetypeChunk rhs)

Parameters

Type	Name	Description
ArchetypeChunk	lhs	An ArchetypeChunk
ArchetypeChunk	rhs	Another ArchetypeChunk

Returns

Type	Description
Boolean	True, if the ArchetypeChunk instances reference different blocks of memory.