Method HasSingleton

HasSingleton<T>()

Checks whether a singleton component of the specified type exists.

Declaration

[Obsolete("SystemAPI.ManagedAPI is deprecated and will be removed. Class-based IComponentData and managed ISharedComponentData are being removed. Convert <T> to a struct IComponentData (with UnityObjectRef<T> for UnityEngine.Object references) and call the unmanaged SystemAPI equivalents. First deprecated in 6.6.")]
public static bool HasSingleton<T>() where T : class

Returns

Type	Description
bool	True, if a singleton of the specified type exists in the current World.

Type Parameters

Name	Description
T	The IComponentData subtype of the singleton component. This component type must not implement IEnableableComponent

Remarks

Not working in Entities.ForEach, IJobEntity, and Utility methods