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using System;
using System.Collections.Generic;
namespace UnityEngine.XR.OpenXR.Samples.ControllerSample
{
public class AutomaticTrackingModeChanger : MonoBehaviour
{
[SerializeField]
float m_ChangeInterval = 5.0f;
private float m_TimeRemainingTillChange;
static List<XRInputSubsystem> s_InputSubsystems = new List<XRInputSubsystem>();
static List<TrackingOriginModeFlags> s_SupportedTrackingOriginModes = new List<TrackingOriginModeFlags>();
void OnEnable()
{
m_TimeRemainingTillChange = m_ChangeInterval;
}
void Update()
{
m_TimeRemainingTillChange -= Time.deltaTime;
if (m_TimeRemainingTillChange <= 0.0f)
{
List<XRInputSubsystem> inputSubsystems = new List<XRInputSubsystem>();
SubsystemManager.GetSubsystems(inputSubsystems);
XRInputSubsystem subsystem = inputSubsystems?[0];
if (subsystem != null)
{
UpdateSupportedTrackingOriginModes(subsystem);
SetToNextMode(subsystem);
}
m_TimeRemainingTillChange += m_ChangeInterval;
}
}
void UpdateSupportedTrackingOriginModes(XRInputSubsystem subsystem)
{
TrackingOriginModeFlags supportedOriginModes = subsystem.GetSupportedTrackingOriginModes();
s_SupportedTrackingOriginModes.Clear();
for (int i = 0; i < 31; i++)
{
uint modeToCheck = 1u << i;
if ((modeToCheck & ((UInt32)supportedOriginModes)) != 0)
{
s_SupportedTrackingOriginModes.Add((TrackingOriginModeFlags)modeToCheck);
}
}
}
void SetToNextMode(XRInputSubsystem subsystem)
{
TrackingOriginModeFlags currentOriginMode = subsystem.GetTrackingOriginMode();
for (int i = 0; i < s_SupportedTrackingOriginModes.Count; i++)
{
if (currentOriginMode == s_SupportedTrackingOriginModes[i])
{
int nextModeIndex = (i + 1) % s_SupportedTrackingOriginModes.Count;
subsystem.TrySetTrackingOriginMode(s_SupportedTrackingOriginModes[nextModeIndex]);
break;
}
}
}
}
}
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