/// <summary>
/// Handles the SurfaceObserver's OnSurfaceChanged event.
/// </summary>
/// <param name="id">The identifier assigned to the surface which has changed.</param>
/// <param name="changeType">The type of change that occurred on the surface.</param>
/// <param name="bounds">The bounds of the surface.</param>
/// <param name="updateTime">The date and time at which the change occurred.</param>
private void SurfaceObserver_OnSurfaceChanged(UnityEngine.VR.WSA.SurfaceId id, UnityEngine.VR.WSA.SurfaceChange changeType, Bounds bounds, System.DateTime updateTime)
{
// Verify that the client of the Surface Observer is expecting updates.
if (ObserverState != ObserverStates.Running)
{
return;
}
GameObject surface;
switch (changeType)
{
// Adding and updating are nearly identical. The only difference is if a new gameobject to contain
// the surface needs to be created.
case UnityEngine.VR.WSA.SurfaceChange.Added:
case UnityEngine.VR.WSA.SurfaceChange.Updated:
// Check to see if the surface is known to the observer.
// If so, we want to add it for cleanup after we get new meshes
// We do this because Unity doesn't properly cleanup baked collision data
if (surfaces.TryGetValue(id.handle, out surface))
{
pendingCleanup.Add(id.handle, surface);
surfaces.Remove(id.handle);
}
// Get an available surface object ready to be used
surface = GetSurfaceObject(id.handle, transform);
// Add the surface to our dictionary of known surfaces so
// we can interact with it later.
surfaces.Add(id.handle, surface);
// Add the request to create the mesh for this surface to our work queue.
QueueSurfaceDataRequest(id, surface);
break;
case UnityEngine.VR.WSA.SurfaceChange.Removed:
// Always process surface removal events.
// This code can be made more thread safe
if (surfaces.TryGetValue(id.handle, out surface))
{
surfaces.Remove(id.handle);
CleanupSurface(surface);
RemoveSurfaceObject(surface, false);
}
break;
}
// Event
if (SurfaceChanged != null)
{
SurfaceChanged(id, changeType, bounds, updateTime);
}
}
/// <summary>
/// Handles the SurfaceObserver's OnSurfaceChanged event.
/// </summary>
/// <param name="id">The identifier assigned to the surface which has changed.</param>
/// <param name="changeType">The type of change that occurred on the surface.</param>
/// <param name="bounds">The bounds of the surface.</param>
/// <param name="updateTime">The date and time at which the change occurred.</param>
private void SurfaceObserver_OnSurfaceChanged(UnityEngine.VR.WSA.SurfaceId id, UnityEngine.VR.WSA.SurfaceChange changeType, Bounds bounds, DateTime updateTime)
{
// Verify that the client of the Surface Observer is expecting updates.
if (ObserverState != ObserverStates.Running)
{
return;
}
switch (changeType)
{
case UnityEngine.VR.WSA.SurfaceChange.Added:
case UnityEngine.VR.WSA.SurfaceChange.Updated:
surfaceWorkQueue.Enqueue(id);
break;
case UnityEngine.VR.WSA.SurfaceChange.Removed:
SurfaceObject?removedSurface = RemoveSurfaceIfFound(id.handle, destroyGameObject: false);
if (removedSurface != null)
{
ReclaimSurface(removedSurface.Value);
}
break;
default:
Debug.LogErrorFormat("Unexpected {0} value: {1}.", changeType.GetType(), changeType);
break;
}
}