/// <summary>
/// Instantiates a new object with MLPCFPersistentContent. The MLPCFPersistentContent is
/// responsible for restoring and saving itself.
/// </summary>
/// <param name="position">Position to spawn the content at.</param>
/// <param name="rotation">Rotation to spawn the content at.</param>
private void CreateContent(Vector3 position, Quaternion rotation)
{
GameObject gameObj = Instantiate(_content, position, rotation);
#if PLATFORM_LUMIN
MLPersistentCoordinateFrames.FindClosestPCF(position, out MLPersistentCoordinateFrames.PCF pcf);
PersistentBall persistentContent = gameObj.GetComponent <PersistentBall>();
persistentContent.BallTransformBinding = new TransformBinding(gameObj.GetInstanceID().ToString(), "Ball");
persistentContent.BallTransformBinding.Bind(pcf, gameObj.transform);
ContentTap contentTap = persistentContent.GetComponent <ContentTap>();
contentTap.OnContentTap += OnContentDestroy;
++numPersistentContentCreated;
_persistentContentMap.Add(persistentContent, "Created");
#endif
}
/// <summary>
/// Reads all stored persistent bindings.
/// Each stored binding will contain a PCF object with a CFUID.
/// Use that stored CFUID to see if the PCF exists in this session, if it does then the stored binding can be regained.
/// If the binding is regained correctly then the persistent content will retain it's pose from the last known launch.
/// </summary>
private void RegainAllStoredBindings()
{
#if PLATFORM_LUMIN
TransformBinding.storage.LoadFromFile();
List <TransformBinding> allBindings = TransformBinding.storage.Bindings;
List <TransformBinding> deleteBindings = new List <TransformBinding>();
foreach (TransformBinding storedBinding in allBindings)
{
// Try to find the PCF with the stored CFUID.
MLResult result = MLPersistentCoordinateFrames.FindPCFByCFUID(storedBinding.PCF.CFUID, (MLResult.Code resultCode, MLPersistentCoordinateFrames.PCF pcf) =>
{
if (pcf != null && MLResult.IsOK(pcf.CurrentResultCode))
{
GameObject gameObj = Instantiate(_content, Vector3.zero, Quaternion.identity);
PersistentBall persistentContent = gameObj.GetComponent <PersistentBall>();
persistentContent.BallTransformBinding = storedBinding;
persistentContent.BallTransformBinding.Bind(pcf, gameObj.transform, true);
ContentTap contentTap = persistentContent.GetComponent <ContentTap>();
contentTap.OnContentTap += OnContentDestroy;
++numPersistentContentRegained;
_persistentContentMap.Add(persistentContent, "Regained");
}
else
{
deleteBindings.Add(storedBinding);
}
});
}
foreach (TransformBinding storedBinding in deleteBindings)
{
storedBinding.UnBind();
}
bindingsLoaded = true;
#endif
}
