30 lines
1.7 KiB
C#
30 lines
1.7 KiB
C#
using Unity.Collections;
|
|
using UnityEngine.SubsystemsImplementation;
|
|
|
|
namespace UnityEngine.XR.ARSubsystems
|
|
{
|
|
/// <summary>
|
|
/// Base class for subsystems that detect and track things in the physical environment.
|
|
/// </summary>
|
|
/// <typeparam name="TTrackable">The trackable's data, often a blittable type to inter-operate with native code.</typeparam>
|
|
/// <typeparam name="TSubsystem">Concrete subsystem deriving from TrackingSubsystem.</typeparam>
|
|
/// <typeparam name="TSubsystemDescriptor">The subsystem descriptor for the underlying subsystem.</typeparam>
|
|
/// <typeparam name="TProvider">Provider type for the TrackingSubsystem-derived subsystem.</typeparam>
|
|
public abstract class TrackingSubsystem<TTrackable, TSubsystem, TSubsystemDescriptor, TProvider>
|
|
: SubsystemWithProvider<TSubsystem, TSubsystemDescriptor, TProvider>
|
|
where TTrackable : struct, ITrackable
|
|
where TSubsystem : SubsystemWithProvider, new()
|
|
where TSubsystemDescriptor : SubsystemDescriptorWithProvider
|
|
where TProvider : SubsystemProvider<TSubsystem>
|
|
{
|
|
/// <summary>
|
|
/// Retrieves a set of changes (additions, updates, and removals) since the last
|
|
/// time <see cref="GetChanges(Allocator)"/> was called. This is typically called
|
|
/// once per frame to update the derived class's internal state.
|
|
/// </summary>
|
|
/// <param name="allocator">The <c>Allocator</c> to use when creating the <c>NativeArray</c>s in <see cref="TrackableChanges{T}"/>.</param>
|
|
/// <returns>The set of changes since the last time this method was invoked.</returns>
|
|
public abstract TrackableChanges<TTrackable> GetChanges(Allocator allocator);
|
|
}
|
|
}
|