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// Unity C# reference source
// Copyright (c) Unity Technologies. For terms of use, see
// https://unity3d.com/legal/licenses/Unity_Reference_Only_License
using System;
using UnityEngine.Scripting;
using UnityEngine.Scripting.APIUpdating;
namespace UnityEngine.XR
{
[RequiredByNativeCode]
public static partial class InputTracking
{
private enum TrackingStateEventType
{
NodeAdded,
NodeRemoved,
TrackingAcquired,
TrackingLost
}
public static event Action<XRNodeState> trackingAcquired = null;
public static event Action<XRNodeState> trackingLost = null;
public static event Action<XRNodeState> nodeAdded = null;
public static event Action<XRNodeState> nodeRemoved = null;
[RequiredByNativeCode]
private static void InvokeTrackingEvent(TrackingStateEventType eventType, XRNode nodeType, long uniqueID, bool tracked)
{
Action<XRNodeState> callback = null;
XRNodeState callbackParam = new XRNodeState();
callbackParam.uniqueID = (ulong)uniqueID;
callbackParam.nodeType = nodeType;
callbackParam.tracked = tracked;
switch (eventType)
{
case TrackingStateEventType.TrackingAcquired:
callback = trackingAcquired;
break;
case TrackingStateEventType.TrackingLost:
callback = trackingLost;
break;
case TrackingStateEventType.NodeAdded:
callback = nodeAdded;
break;
case TrackingStateEventType.NodeRemoved:
callback = nodeRemoved;
break;
default:
throw new ArgumentException("TrackingEventHandler - Invalid EventType: " + eventType);
}
if (null != callback)
{
callback(callbackParam);
}
}
}
}