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AzureSpatialAnchorsDemoWrapper.cs
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AzureSpatialAnchorsDemoWrapper.cs
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
using System;
using System.Collections;
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;
using UnityEngine;
#if UNITY_IOS
using Microsoft.Azure.SpatialAnchors.Unity.Samples.IOS.ARKit;
using UnityEngine.XR.iOS;
#elif UNITY_ANDROID
using Microsoft.Azure.SpatialAnchors.Unity.Samples.Android;
#elif UNITY_WSA || WINDOWS_UWP
using UnityEngine.XR.WSA;
#endif
namespace Microsoft.Azure.SpatialAnchors.Unity.Samples
{
/// <summary>
/// Use this behavior to manage an Azure Spatial Service session for your game or app.
/// </summary>
public class AzureSpatialAnchorsDemoWrapper : MonoBehaviour
{
private static AzureSpatialAnchorsDemoWrapper _instance;
/// <summary>
/// Single instance of the anchor manager.
/// </summary>
public static AzureSpatialAnchorsDemoWrapper Instance
{
get
{
if (_instance == null)
{
_instance = FindObjectOfType<AzureSpatialAnchorsDemoWrapper>();
}
return _instance;
}
}
/// <summary>
/// Set this string to the Spatial Anchors account ID provided in the Spatial Anchors resource.
/// </summary>
public string SpatialAnchorsAccountId = "";
/// <summary>
/// Set this string to the Spatial Anchors account key provided in the Spatial Anchors resource.
/// </summary>
public string SpatialAnchorsAccountKey = "";
/// <summary>
/// These events are not wired to the actual CloudSpatialAnchorSession, but will
/// act as a proxy to forward events from the CloudSpatialAnchorSession to the
/// subscriber.
/// </summary>
public event AnchorLocatedDelegate OnAnchorLocated;
public event LocateAnchorsCompletedDelegate OnLocateAnchorsCompleted;
public event SessionErrorDelegate OnSessionError;
public event SessionUpdatedDelegate OnSessionUpdated;
public event OnLogDebugDelegate OnLogDebug;
public enum SessionStatusIndicatorType
{
RecommendedForCreate = 0,
ReadyForCreate,
RecommendedForQuery,
ReadyForQuery
}
private readonly float[] SessionStatusIndicators = new float[4];
public float GetSessionStatusIndicator(SessionStatusIndicatorType indicatorType)
{
return SessionStatusIndicators[(int)indicatorType];
}
private bool enableProcessing;
public bool EnableProcessing
{
get
{
return enableProcessing;
}
set
{
if (enableProcessing != value)
{
enableProcessing = value;
Debug.Log($"Processing {enableProcessing}");
if (enableProcessing)
{
cloudSpatialAnchorSession.Start();
}
else
{
cloudSpatialAnchorSession.Stop();
}
}
}
}
public bool EnoughDataToCreate => this.GetSessionStatusIndicator(SessionStatusIndicatorType.RecommendedForCreate) >= 1;
public bool EnoughDataToQuery => this.GetSessionStatusIndicator(SessionStatusIndicatorType.ReadyForQuery) >= 1;
private readonly Queue<Action> dispatchQueue = new Queue<Action>();
private readonly List<string> AnchorIdsToLocate = new List<string>();
private CloudSpatialAnchorSession cloudSpatialAnchorSession = null;
private AnchorLocateCriteria anchorLocateCriteria = null;
// Use this for initialization
private void Start()
{
anchorLocateCriteria = new AnchorLocateCriteria();
#if UNITY_IOS
arkitSession = UnityARSessionNativeInterface.GetARSessionNativeInterface();
UnityARSessionNativeInterface.ARFrameUpdatedEvent += UnityARSessionNativeInterface_ARFrameUpdatedEvent;
#endif
#if UNITY_ANDROID
UnityAndroidHelper.Instance.DispatchUiThread(unityActivity =>
{
using (AndroidJavaClass cloudServices = new AndroidJavaClass("com.microsoft.CloudServices"))
{
cloudServices.CallStatic("initialize", unityActivity);
this.CreateNewCloudSession();
}
});
#else
CreateNewCloudSession();
#endif
}
private void Update()
{
#if UNITY_ANDROID
ProcessLatestFrame();
#endif
lock (dispatchQueue)
{
while (dispatchQueue.Count > 0)
{
dispatchQueue.Dequeue()();
}
}
}
private void OnDestroy()
{
enableProcessing = false;
if (cloudSpatialAnchorSession != null)
{
cloudSpatialAnchorSession.Dispose();
cloudSpatialAnchorSession = null;
}
if (anchorLocateCriteria != null)
{
anchorLocateCriteria = null;
}
_instance = null;
}
private void CloudSpatialAnchorSession_LocateAnchorsCompleted(object sender, LocateAnchorsCompletedEventArgs args)
{
OnLocateAnchorsCompleted?.Invoke(sender, args);
}
private void CloudSpatialAnchorSession_AnchorLocated(object sender, AnchorLocatedEventArgs args)
{
OnAnchorLocated?.Invoke(sender, args);
}
private void CloudSpatialAnchorSession_Error(object sender, SessionErrorEventArgs args)
{
OnSessionError?.Invoke(sender, args);
}
private void CloudSpatialAnchorSession_SessionUpdated(object sender, SessionUpdatedEventArgs args)
{
SessionStatusIndicators[(int)SessionStatusIndicatorType.ReadyForCreate] = args.Status.ReadyForCreateProgress;
SessionStatusIndicators[(int)SessionStatusIndicatorType.RecommendedForCreate] = args.Status.RecommendedForCreateProgress;
OnSessionUpdated?.Invoke(sender, args);
}
private void CloudSpatialAnchorSession_OnLogDebug(object sender, OnLogDebugEventArgs args)
{
OnLogDebug?.Invoke(sender, args);
}
public void ResetSession(Action completionRoutine = null)
{
bool processingWasEnabled = this.EnableProcessing;
this.EnableProcessing = false;
this.cloudSpatialAnchorSession.Reset();
this.ResetSessionStatusIndicators();
Task.Run(async () =>
{
while (this.LocateOperationInFlight())
{
await Task.Yield();
}
lock (this.dispatchQueue)
{
this.dispatchQueue.Enqueue(() =>
{
this.EnableProcessing = processingWasEnabled;
completionRoutine?.Invoke();
});
}
});
}
public void ResetSessionStatusIndicators()
{
for (int i = 0; i < this.SessionStatusIndicators.Length; i++)
{
this.SessionStatusIndicators[i] = 0;
}
}
private void CreateNewCloudSession()
{
cloudSpatialAnchorSession = new CloudSpatialAnchorSession();
cloudSpatialAnchorSession.Configuration.AccountId = SpatialAnchorsAccountId.Trim();
cloudSpatialAnchorSession.Configuration.AccountKey = SpatialAnchorsAccountKey.Trim();
cloudSpatialAnchorSession.LogLevel = SessionLogLevel.Information;
cloudSpatialAnchorSession.OnLogDebug += CloudSpatialAnchorSession_OnLogDebug;
cloudSpatialAnchorSession.SessionUpdated += CloudSpatialAnchorSession_SessionUpdated;
cloudSpatialAnchorSession.AnchorLocated += CloudSpatialAnchorSession_AnchorLocated;
cloudSpatialAnchorSession.LocateAnchorsCompleted += CloudSpatialAnchorSession_LocateAnchorsCompleted;
cloudSpatialAnchorSession.Error += CloudSpatialAnchorSession_Error;
#if UNITY_WSA && !UNITY_EDITOR
// AAD user token scenario to get an authentication token
//cloudSpatialAnchorSession.TokenRequired += async (object sender, SpatialServices.TokenRequiredEventArgs args) =>
//{
// CloudSpatialAnchorSessionDeferral deferral = args.GetDeferral();
// // AAD user token scenario to get an authentication token
// args.AuthenticationToken = await AuthenticationHelper.GetAuthenticationTokenAsync();
// deferral.Complete();
//};
#endif
#if UNITY_IOS
cloudSpatialAnchorSession.Session = arkitSession.GetNativeSessionPtr();
#elif UNITY_ANDROID
cloudSpatialAnchorSession.Session = GoogleARCoreInternal.ARCoreAndroidLifecycleManager.Instance.NativeSession.SessionHandle;
#elif UNITY_WSA || WINDOWS_UWP
// No need to set a native session pointer for HoloLens.
#else
throw new NotSupportedException("The platform is not supported.");
#endif
}
public bool SessionValid()
{
return cloudSpatialAnchorSession != null;
}
public bool LocateOperationInFlight()
{
return (SessionValid() && cloudSpatialAnchorSession.GetActiveWatchers().Count > 0);
}
public void SetAnchorIdsToLocate(IEnumerable<string> anchorIds)
{
if (anchorIds == null)
{
throw new ArgumentNullException(nameof(anchorIds));
}
AnchorIdsToLocate.Clear();
AnchorIdsToLocate.AddRange(anchorIds);
anchorLocateCriteria.Identifiers = AnchorIdsToLocate.ToArray();
}
public void ResetAnchorIdsToLocate()
{
AnchorIdsToLocate.Clear();
anchorLocateCriteria.Identifiers = new string[0];
}
public void SetNearbyAnchor(CloudSpatialAnchor nearbyAnchor, float DistanceInMeters, int MaxNearAnchorsToFind)
{
if (nearbyAnchor == null)
{
anchorLocateCriteria.NearAnchor = new NearAnchorCriteria();
return;
}
NearAnchorCriteria nac = new NearAnchorCriteria();
nac.SourceAnchor = nearbyAnchor;
nac.DistanceInMeters = DistanceInMeters;
nac.MaxResultCount = MaxNearAnchorsToFind;
anchorLocateCriteria.NearAnchor = nac;
}
public void SetGraphEnabled(bool UseGraph, bool JustGraph = false)
{
anchorLocateCriteria.Strategy = UseGraph ?
(JustGraph ? LocateStrategy.Relationship : LocateStrategy.AnyStrategy) :
LocateStrategy.VisualInformation;
}
/// <summary>
/// Bypassing the cache will force new queries to be sent for objects, allowing
/// for refined poses over time.
/// </summary>
/// <param name="BypassCache"></param>
public void SetBypassCache(bool BypassCache)
{
anchorLocateCriteria.BypassCache = BypassCache;
}
public CloudSpatialAnchorWatcher CreateWatcher()
{
if (SessionValid())
{
return cloudSpatialAnchorSession.CreateWatcher(anchorLocateCriteria);
}
else
{
return null;
}
}
public async Task<CloudSpatialAnchor> StoreAnchorInCloud(CloudSpatialAnchor cloudSpatialAnchor)
{
if (SessionStatusIndicators[(int)SessionStatusIndicatorType.ReadyForCreate] < 1)
{
return null;
}
await cloudSpatialAnchorSession.CreateAnchorAsync(cloudSpatialAnchor);
return cloudSpatialAnchor;
}
public async Task DeleteAnchorAsync(CloudSpatialAnchor cloudSpatialAnchor)
{
if (SessionValid())
{
await cloudSpatialAnchorSession.DeleteAnchorAsync(cloudSpatialAnchor);
}
}
#if UNITY_ANDROID
long lastFrameProcessedTimeStamp;
void ProcessLatestFrame()
{
if (!EnableProcessing)
{
return;
}
if (cloudSpatialAnchorSession == null)
{
throw new InvalidOperationException("Cloud spatial anchor session is not available.");
}
var nativeSession = GoogleARCoreInternal.ARCoreAndroidLifecycleManager.Instance.NativeSession;
if (nativeSession.FrameHandle == IntPtr.Zero)
{
return;
}
long latestFrameTimeStamp = nativeSession.FrameApi.GetTimestamp();
bool newFrameToProcess = latestFrameTimeStamp > lastFrameProcessedTimeStamp;
if (newFrameToProcess)
{
cloudSpatialAnchorSession.ProcessFrame(nativeSession.FrameHandle);
lastFrameProcessedTimeStamp = latestFrameTimeStamp;
}
}
#endif
#if UNITY_IOS
UnityARSessionNativeInterface arkitSession;
void UnityARSessionNativeInterface_ARFrameUpdatedEvent(UnityARCamera camera)
{
if (cloudSpatialAnchorSession != null && EnableProcessing)
{
cloudSpatialAnchorSession.ProcessFrame(arkitSession.GetNativeFramePtr());
}
}
Matrix4x4 GetMatrix4x4FromUnityAr4x4(UnityARMatrix4x4 input)
{
Matrix4x4 retval = new Matrix4x4(input.column0, input.column1, input.column2, input.column3);
return retval;
}
#endif
}
}