68 lines
2.2 KiB
C#
68 lines
2.2 KiB
C#
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using System.Collections.Generic;
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using UnityEngine.XR.Management;
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namespace UnityEngine.XR.ARFoundation
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{
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/// <summary>
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/// Manages the lifetime of the <c>XRInputSubsystem</c>. Add one of these to any <c>GameObject</c> in your scene
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/// if you want device pose information to be available. Read the input by using the <c>TrackedPoseDriver</c>
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/// </summary>
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[DefaultExecutionOrder(ARUpdateOrder.k_InputManager)]
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[DisallowMultipleComponent]
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[HelpURL(HelpUrls.ApiWithNamespace + nameof(ARInputManager) + ".html")]
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public sealed class ARInputManager : MonoBehaviour
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{
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/// <summary>
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/// Get the [`XRInputSubsystem`](https://docs.unity3d.com/ScriptReference/XR.XRInputSubsystem.html)
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/// whose lifetime this component manages.
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/// </summary>
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public XRInputSubsystem subsystem { get; private set; }
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void OnEnable()
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{
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subsystem = GetActiveSubsystemInstance();
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if (subsystem != null)
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subsystem.Start();
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}
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void OnDisable()
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{
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if (subsystem != null && subsystem.running)
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subsystem.Stop();
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}
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void OnDestroy()
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{
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subsystem = null;
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}
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XRInputSubsystem GetActiveSubsystemInstance()
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{
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XRInputSubsystem activeSubsystem = null;
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// Query the currently active loader for the created subsystem, if one exists.
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if (XRGeneralSettings.Instance != null && XRGeneralSettings.Instance.Manager != null)
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{
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XRLoader loader = XRGeneralSettings.Instance.Manager.activeLoader;
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if (loader != null)
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{
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activeSubsystem = loader.GetLoadedSubsystem<XRInputSubsystem>();
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}
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}
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if (activeSubsystem == null)
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{
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Debug.LogWarning($"No active {typeof(XRInputSubsystem).FullName} is available. Please ensure that a " +
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"valid loader configuration exists in the XR project settings.");
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}
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return activeSubsystem;
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}
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static List<XRInputSubsystemDescriptor> s_SubsystemDescriptors =
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new List<XRInputSubsystemDescriptor>();
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}
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}
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