XRPlaneSubsystemDescriptor.cs
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using System;
#if UNITY_2020_2_OR_NEWER
using UnityEngine.SubsystemsImplementation;
#endif
namespace UnityEngine.XR.ARSubsystems
{
/// <summary>
/// Describes the capabilities of an <see cref="XRPlaneSubsystem"/>.
/// </summary>
public class XRPlaneSubsystemDescriptor :
#if UNITY_2020_2_OR_NEWER
SubsystemDescriptorWithProvider<XRPlaneSubsystem, XRPlaneSubsystem.Provider>
#else
SubsystemDescriptor<XRPlaneSubsystem>
#endif
{
/// <summary>
/// <c>true</c> if the subsystem supports horizontal plane detection.
/// </summary>
public bool supportsHorizontalPlaneDetection { get; private set; }
/// <summary>
/// <c>true</c> if the subsystem supports vertical plane detection.
/// </summary>
public bool supportsVerticalPlaneDetection { get; private set; }
/// <summary>
/// <c>true</c> if the subsystem supports arbitrarily angled plane detection.
/// </summary>
public bool supportsArbitraryPlaneDetection { get; private set; }
/// <summary>
/// <c>true</c> if the subsystem supports boundary vertices for its planes.
/// </summary>
public bool supportsBoundaryVertices { get; private set; }
/// <summary>
/// <c>true</c> if the current subsystem supports plane classification. Otherwise, <c>false</c>.
/// </summary>
public bool supportsClassification { get; private set; }
/// <summary>
/// Constructor info used to register a descriptor.
/// </summary>
public struct Cinfo : IEquatable<Cinfo>
{
/// <summary>
/// The string identifier for a specific implementation.
/// </summary>
public string id { get; set; }
#if UNITY_2020_2_OR_NEWER
/// <summary>
/// Specifies the provider implementation type to use for instantiation.
/// </summary>
/// <value>
/// The provider implementation type to use for instantiation.
/// </value>
public Type providerType { get; set; }
/// <summary>
/// Specifies the <c>XRPlaneSubsystem</c>-derived type that forwards casted calls to its provider.
/// </summary>
/// <value>
/// The type of the subsystem to use for instantiation. If null, <c>XRPlaneSubsystem</c> will be instantiated.
/// </value>
public Type subsystemTypeOverride { get; set; }
#endif
/// <summary>
/// The concrete <c>Type</c> which will be instantiated if <c>Create</c> is called on this subsystem descriptor.
/// </summary>
#if UNITY_2020_2_OR_NEWER
[Obsolete("XRPlaneSubsystem no longer supports the deprecated set of base classes for subsystems as of Unity 2020.2. Use providerType and, optionally, subsystemTypeOverride instead.", true)]
#endif
public Type subsystemImplementationType { get; set; }
/// <summary>
/// <c>true</c> if the subsystem supports horizontal plane detection.
/// </summary>
public bool supportsHorizontalPlaneDetection { get; set; }
/// <summary>
/// <c>true</c> if the subsystem supports vertical plane detection.
/// </summary>
public bool supportsVerticalPlaneDetection { get; set; }
/// <summary>
/// <c>true</c> if the subsystem supports arbitrarily angled plane detection.
/// </summary>
public bool supportsArbitraryPlaneDetection { get; set; }
/// <summary>
/// <c>true</c> if the subsystem supports boundary vertices for its planes.
/// </summary>
public bool supportsBoundaryVertices { get; set; }
/// <summary>
/// <c>true</c> if the subsystem supports boundary vertices for its planes.
/// </summary>
public bool supportsClassification { get; set; }
/// <summary>
/// Tests for equality.
/// </summary>
/// <param name="other">The other <see cref="Cinfo"/> to compare against.</param>
/// <returns>`True` if every field in <paramref name="other"/> is equal to this <see cref="Cinfo"/>, otherwise false.</returns>
public bool Equals(Cinfo other)
{
return
ReferenceEquals(id, other.id) &&
#if UNITY_2020_2_OR_NEWER
ReferenceEquals(providerType, other.providerType) &&
ReferenceEquals(subsystemTypeOverride, other.subsystemTypeOverride) &&
#else
ReferenceEquals(subsystemImplementationType, other.subsystemImplementationType) &&
#endif
supportsHorizontalPlaneDetection == other.supportsHorizontalPlaneDetection &&
supportsVerticalPlaneDetection == other.supportsVerticalPlaneDetection &&
supportsArbitraryPlaneDetection == other.supportsArbitraryPlaneDetection &&
supportsClassification == other.supportsClassification &&
supportsBoundaryVertices == other.supportsBoundaryVertices;
}
/// <summary>
/// Tests for equality.
/// </summary>
/// <param name="obj">The `object` to compare against.</param>
/// <returns>`True` if <paramref name="obj"/> is of type <see cref="Cinfo"/> and
/// <see cref="Equals(Cinfo)"/> also returns `true`; otherwise `false`.</returns>
public override bool Equals(object obj)
{
if (!(obj is Cinfo))
return false;
return Equals((Cinfo)obj);
}
/// <summary>
/// Generates a hash suitable for use with containers like `HashSet` and `Dictionary`.
/// </summary>
/// <returns>A hash code generated from this object's fields.</returns>
public override int GetHashCode()
{
unchecked
{
int hashCode = HashCode.ReferenceHash(id);
#if UNITY_2020_2_OR_NEWER
hashCode = (hashCode * 486187739) + HashCode.ReferenceHash(providerType);
hashCode = (hashCode * 486187739) + HashCode.ReferenceHash(subsystemTypeOverride);
#else
hashCode = (hashCode * 486187739) + HashCode.ReferenceHash(subsystemImplementationType);
#endif
hashCode = (hashCode * 486187739) + supportsHorizontalPlaneDetection.GetHashCode();
hashCode = (hashCode * 486187739) + supportsVerticalPlaneDetection.GetHashCode();
hashCode = (hashCode * 486187739) + supportsArbitraryPlaneDetection.GetHashCode();
hashCode = (hashCode * 486187739) + supportsBoundaryVertices.GetHashCode();
hashCode = (hashCode * 486187739) + supportsClassification.GetHashCode();
return hashCode;
}
}
/// <summary>
/// Tests for equality. Same as <see cref="Equals(Cinfo)"/>.
/// </summary>
/// <param name="lhs">The left-hand side of the comparison.</param>
/// <param name="rhs">The right-hand side of the comparison.</param>
/// <returns>`True` if <paramref name="lhs"/> is equal to <paramref name="rhs"/>, otherwise `false`.</returns>
public static bool operator ==(Cinfo lhs, Cinfo rhs) => lhs.Equals(rhs);
/// <summary>
/// Tests for inequality. Same as `!`<see cref="Equals(Cinfo)"/>.
/// </summary>
/// <param name="lhs">The left-hand side of the comparison.</param>
/// <param name="rhs">The right-hand side of the comparison.</param>
/// <returns>`True` if <paramref name="lhs"/> is not equal to <paramref name="rhs"/>, otherwise `false`.</returns>
public static bool operator !=(Cinfo lhs, Cinfo rhs) => !lhs.Equals(rhs);
}
/// <summary>
/// Creates a new subsystem descriptor and registers it with the <c>SubsystemManager</c>.
/// </summary>
/// <param name="cinfo">Construction info for the descriptor.</param>
public static void Create(Cinfo cinfo)
{
var descriptor = new XRPlaneSubsystemDescriptor(cinfo);
#if UNITY_2020_2_OR_NEWER
SubsystemDescriptorStore.RegisterDescriptor(descriptor);
#else
SubsystemRegistration.CreateDescriptor(descriptor);
#endif
}
XRPlaneSubsystemDescriptor(Cinfo cinfo)
{
id = cinfo.id;
#if UNITY_2020_2_OR_NEWER
providerType = cinfo.providerType;
subsystemTypeOverride = cinfo.subsystemTypeOverride;
#else
subsystemImplementationType = cinfo.subsystemImplementationType;
#endif
supportsHorizontalPlaneDetection = cinfo.supportsHorizontalPlaneDetection;
supportsVerticalPlaneDetection = cinfo.supportsVerticalPlaneDetection;
supportsArbitraryPlaneDetection = cinfo.supportsArbitraryPlaneDetection;
supportsBoundaryVertices = cinfo.supportsBoundaryVertices;
supportsClassification = cinfo.supportsClassification;
}
}
}