Method GetExistingUnmanagedSystem

GetExistingUnmanagedSystem<T>()

Return an existing instance of a system of type T in this World.

Declaration

[GenerateTestsForBurstCompatibility(GenericTypeArguments = new Type[] { typeof(BurstCompatibleSystem) })]
public SystemHandle GetExistingUnmanagedSystem<T>() where T : unmanaged, ISystem

Returns

Type	Description
SystemHandle	The existing instance of system type T in this World. If no such instance exists, the method returns default.

Type Parameters

Name	Description
T	The system type

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.

Declaration

[ExcludeFromBurstCompatTesting("Takes System.Type")]
public SystemHandle GetExistingUnmanagedSystem(Type type)

Parameters

Type	Name	Description
Type	type	The system type

Returns

Type	Description
SystemHandle	The existing instance of system type type in this World. If no such instance exists, the method returns SystemHandle.Null.

GetExistingUnmanagedSystem(SystemTypeIndex)

Return an existing instance of a system of type type in this World. This avoids unnecessary reflection.

Declaration

public SystemHandle GetExistingUnmanagedSystem(SystemTypeIndex type)

Parameters

Type	Name	Description
SystemTypeIndex	type	The system type

Returns

Type	Description
SystemHandle	The existing instance of system type type in this World. If no such instance exists, the method returns SystemHandle.Null.