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109 lines
3.9 KiB
109 lines
3.9 KiB
using System;
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using System.Runtime.InteropServices;
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namespace UnityEngine.XR.ARSubsystems
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{
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/// <summary>
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/// A struct describing face data that is stored in the <see cref="XRFaceSubsystem"/>
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/// </summary>
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[StructLayout(LayoutKind.Sequential)]
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public struct XRFace : ITrackable, IEquatable<XRFace>
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{
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// Fields to marshall/serialize from native code
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TrackableId m_TrackableId;
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Pose m_Pose;
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TrackingState m_TrackingState;
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IntPtr m_NativePtr;
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Pose m_LeftEyePose;
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Pose m_RightEyePose;
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Vector3 m_FixationPoint;
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/// <summary>
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/// Get a <see cref="XRFace"/> with reasonable default values.
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/// </summary>
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public static XRFace defaultValue => s_Default;
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static readonly XRFace s_Default = new XRFace
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{
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m_TrackableId = TrackableId.invalidId,
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m_Pose = Pose.identity,
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m_LeftEyePose = Pose.identity,
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m_RightEyePose = Pose.identity,
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};
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/// <summary>
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/// The unique <see cref="TrackableId"/> of the face as a trackable within the <see cref="XRFaceSubsystem"/>.
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/// </summary>
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/// <remarks>
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/// With this, you are able to extract more data about this particular face from the <see cref="XRFaceSubsystem"/>.
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/// </remarks>
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public TrackableId trackableId => m_TrackableId;
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/// <summary>
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/// The <see cref="pose"/> of the face describes its position and rotation in session space.
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/// </summary>
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public Pose pose => m_Pose;
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/// <summary>
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/// The tracking state associated with this <see cref="XRFace"/>.
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/// </summary>
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public TrackingState trackingState => m_TrackingState;
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/// <summary>
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/// A native pointer associated with this <see cref="XRFace"/>.
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/// </summary>
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/// <remarks>
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/// The data pointed to by this pointer is implementation-defined.
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/// </remarks>
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public IntPtr nativePtr => m_NativePtr;
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/// <summary>
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/// The pose of the left eye in relation to the face.
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/// </summary>
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public Pose leftEyePose => m_LeftEyePose;
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/// <summary>
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/// The pose of the right eye in relation to the face.
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/// </summary>
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public Pose rightEyePose => m_RightEyePose;
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/// <summary>
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/// The position of which the eyes are fixated in relation to the face.
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/// </summary>
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public Vector3 fixationPoint => m_FixationPoint;
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// IEquatable boilerplate
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public override bool Equals(object obj) => obj is XRFace && Equals((XRFace)obj);
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public override int GetHashCode()
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{
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unchecked
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{
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var hashCode = trackableId.GetHashCode();
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hashCode = (hashCode * 486187739) + pose.GetHashCode();
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hashCode = (hashCode * 486187739) + ((int)trackingState).GetHashCode();
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hashCode = (hashCode * 486187739) + nativePtr.GetHashCode();
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hashCode = (hashCode * 486187739) + leftEyePose.GetHashCode();
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hashCode = (hashCode * 486187739) + rightEyePose.GetHashCode();
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hashCode = (hashCode * 486187739) + fixationPoint.GetHashCode();
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return hashCode;
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}
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}
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public static bool operator==(XRFace lhs, XRFace rhs) => lhs.Equals(rhs);
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public static bool operator!=(XRFace lhs, XRFace rhs) => !lhs.Equals(rhs);
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public bool Equals(XRFace other)
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{
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return
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trackableId.Equals(other.trackableId) &&
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pose.Equals(other.pose) &&
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(trackingState == other.trackingState) &&
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(nativePtr == other.nativePtr) &&
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(leftEyePose.Equals(other.leftEyePose)) &&
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(rightEyePose.Equals(other.rightEyePose)) &&
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(fixationPoint.Equals(other.fixationPoint));
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}
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};
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}
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