public void Undo()
{
if (undoStack.Count == 0)
{
return;
}
var state = undoStack.Pop();
redoStack.Push(stateProvider.GetState(this));
stateProvider.SetState(state);
}
private void RecordHighTideMark(SyncItem syncItem)
{
var retry = 5;
do
{
try
{
var state = _stateProvider.GetState(_syncItem.StateKey);
state.DownloadHighTide = _syncItem.Published;
state.SaveState(_syncItem.StateKey);
retry = 0;
}
catch (System.IO.IOException)
{
OnStatusUpdate(new StatusUpdateEventArgs(StatusUpdateLevel.Warning, string.Format(CultureInfo.InvariantCulture, "{0}, cannot write to state file, will retry", syncItem.EpisodeTitle), false, syncItem));
if (_syncItem.RetryWaitTimeInSeconds > 0)
{
Thread.Sleep(1000 * _syncItem.RetryWaitTimeInSeconds);
}
retry--;
if (retry == 0)
{
throw;
}
}
} while (retry > 0);
}
private List <ISyncItem> ApplyDownloadStrategy(string stateKey, IPodcastInfo podcastInfo, List <ISyncItem> episodesFound)
{
switch (podcastInfo.Feed.DownloadStrategy.Value)
{
case PodcastEpisodeDownloadStrategy.All:
return(episodesFound);
case PodcastEpisodeDownloadStrategy.HighTide:
var state = _stateProvider.GetState(stateKey);
var newEpisodes =
(from episode in episodesFound
where episode.Published > state.DownloadHighTide
select episode);
var filteredEpisodes = new List <ISyncItem>(1);
filteredEpisodes.AddRange(newEpisodes);
return(filteredEpisodes);
case PodcastEpisodeDownloadStrategy.Latest:
episodesFound.Sort((e1, e2) => e2.Published.CompareTo(e1.Published));
var latestEpisodes = new List <ISyncItem>(1);
latestEpisodes.AddRange(episodesFound.Take(1));
return(latestEpisodes);
default:
throw new EnumOutOfRangeException();
}
}
private void UpdateStateEstimators(SimulationStepResults simulationState, GameTime gameTime, JoystickOutput output,
out PhysicalHeliState estimatedState,
out PhysicalHeliState blindEstimatedState,
out PhysicalHeliState observedState)
{
var dtMillis = (long)gameTime.ElapsedGameTime.TotalMilliseconds;
var totalMillis = (long)gameTime.TotalGameTime.TotalMilliseconds;
// TimeSpan totalSimulationTime = gameTime.TotalGameTime;
// Update sensors prior to using the state provider,
// because they are typically dependent on the state of the sensors.
Sensors.Update(_simulationState, output);
// Update states
((SensorEstimatedState)_estimatedStateProvider).CheatingTrueState = simulationState; // TODO Temp cheating
_estimatedStateProvider.Update(simulationState, dtMillis, totalMillis, output);
// TODO Separate physical and navigational states
_estimatedStateProvider.GetState(out estimatedState, out observedState, out blindEstimatedState);
}
