68 lines
2.5 KiB
C#
68 lines
2.5 KiB
C#
using System;
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using UnityEngine.XR.ARSubsystems;
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namespace UnityEngine.XR.ARFoundation
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{
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/// <summary>
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/// Represents a raycast that updates automatically.
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/// </summary>
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/// <remarks>
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/// Generated by the <see cref="ARRaycastManager"/>. Create a raycast with
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/// <see cref="ARRaycastManager.AddRaycast(Vector2, float)"/>.
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/// </remarks>
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[DefaultExecutionOrder(ARUpdateOrder.k_Raycast)]
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[DisallowMultipleComponent]
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[HelpURL(HelpUrls.ApiWithNamespace + nameof(ARRaycast) + ".html")]
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public sealed class ARRaycast : ARTrackable<XRRaycast, ARRaycast>
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{
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bool m_Updated;
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/// <summary>
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/// Get a native pointer associated with this raycast.
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/// </summary>
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/// <remarks>
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/// The data pointed to by this member is implementation defined.
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/// The lifetime of the pointed to object is also
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/// implementation defined, but should be valid at least until the next
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/// <see cref="ARSession"/> update.
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/// </remarks>
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public IntPtr nativePtr => sessionRelativeData.nativePtr;
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/// <summary>
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/// The distance, in meters, between the raycast's origin and intersection point.
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/// </summary>
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public float distance => sessionRelativeData.distance;
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/// <summary>
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/// The <see cref="ARPlane"/> hit by the raycast, or `null` if the raycast does not intersect a plane.
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/// </summary>
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public ARPlane plane { get; internal set; }
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/// <summary>
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/// Invoked whenever this raycast is updated. The event is fired during this `MonoBehaviour`'s
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/// [Update](https://docs.unity3d.com/ScriptReference/MonoBehaviour.Update.html) callback. This event is not
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/// invoked if this component is [disabled](https://docs.unity3d.com/ScriptReference/Behaviour-enabled.html),
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/// although it might continue to receive positional updates.
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/// </summary>
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public event Action<ARRaycastUpdatedEventArgs> updated;
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/// <summary>
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/// Marks this raycast as updated, causing the <see cref="updated"/> event to be invoked during the Update
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/// callback.
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/// </summary>
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protected internal override void OnAfterSetSessionRelativeData() => m_Updated = true;
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void Update()
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{
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if (m_Updated)
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{
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updated?.Invoke(new ARRaycastUpdatedEventArgs
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{
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raycast = this
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});
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m_Updated = false;
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}
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}
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}
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}
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