/// <summary>Initializes the correct number of snapshots, allocating memory for them in advance</summary>
public void InitializeSnapshotsForLevel(Level level)
{
for (int i = 0; i < _maxMajorSnapshots; i++)
{
var majorSnapshot = level.InitializeSnapshot();
_majorLevelSnapshots.AddLast(majorSnapshot);
}
_tentativeSnapshot = level.InitializeSnapshot();
_tentativeSnapshotComparer = level.InitializeSnapshot();
}
public void FinalizeTentativeSnapshot()
{
// Get the oldest snapshot in the list and remove it
var snapshot = _majorLevelSnapshots.First.Value;
_majorLevelSnapshots.RemoveFirst();
// Add the tentive snapshot to the end
_majorLevelSnapshots.AddLast(_tentativeSnapshot);
// Reassign the tentative snapshot
_tentativeSnapshot = snapshot;
_hasTentativeSnapshot = false;
if (++_availableUndos > _maxMajorSnapshots)
{
_availableUndos = _maxMajorSnapshots;
}
}