Struct WorldUnmanaged

A pointer-to-implementation for the unmanaged representation of a World.

Namespace: Unity.Entities

Assembly: Unity.Entities.dll

Syntax

public struct WorldUnmanaged

Remarks

This is intended to stay small (8 bytes without collections checks, 32 bytes with padding with collections checks), because it is intended to be cheaply passed around by value.

Properties

Name	Description
EntityManager	An interface to manipulate the World's entity data from the main thread
Flags	The WorldFlags settings for this World
IsCreated	Has this World been successfully initialized?
MaximumDeltaTime	The maximum single-frame delta time permitted in this world.
Name	The name of the World
SequenceNumber	The World's current sequence number
Time	The world's simulated time, include elapsed time since World creation and the delta time since the previous update.
UpdateAllocator	Rewindable allocator instance for this World.
Version	The World's current version number

Methods

Name	Description
GetAllSystems(AllocatorHandle)	Retrieve an array of all systems in this world, both unmanaged and managed
GetAllUnmanagedSystems(AllocatorHandle)	Retrieve an array of all unmanaged systems in this world
GetExistingSystemState<T>()	Return the system state for an existing instance of a system of type T in this World.
GetExistingUnmanagedSystem(Type)	Return an existing instance of a system of type type in this World. Prefer the version that takes a SystemTypeIndex to avoid unnecessary reflection.
GetExistingUnmanagedSystem(SystemTypeIndex)	Return an existing instance of a system of type type in this World. This avoids unnecessary reflection.
GetExistingUnmanagedSystem<T>()	Return an existing instance of a system of type T in this World.
GetSystemTypeIndex(SystemHandle)	Gets the SystemTypeIndex for the system corresponding to the provided SystemHandle.
GetUnsafeSystemRef<T>(SystemHandle)	Resolves the system handle to a reference to its underlying system instantiation.
IsSystemValid(SystemHandle)	Checks whether a system identified by its system handle exists and is in a valid state
ResetUpdateAllocator()	Manually update the double update allocators. This switches to the other allocator and rewinds the newly switched allocator.
ResolveSystemStateRef(SystemHandle)	Resolves the system handle to a reference to its underlying system state.
ResolveSystem<T>(SystemHandle)	Obsolete. Use GetUnsafeSystemRef<T>(SystemHandle) instead.