private void SaveSnapshot()
{
Snapshot newSnapshot = new Snapshot (currentTime);
bool appendSnapshot = currentSnapshotIndex + 1 < Snapshots.Count;
if (appendSnapshot)
newSnapshot = Snapshots[currentSnapshotIndex];
Snapshot fullSnapshot = new Snapshot (currentTime);
foreach (GameObject gameObject in Input)
{
fullSnapshot.GameObjects.Add (gameObject.ID, gameObject.HardCopy());
if (HasObjectChanged (gameObject, lastFull))
{
newSnapshot.GameObjects.Add (gameObject.ID, fullSnapshot.GameObjects[gameObject.ID]);
}
}
// Save the snapshots
this.lastFull = fullSnapshot;
if (newSnapshot.GameObjects.Count > 0 && !appendSnapshot)
{
Snapshots.Add (newSnapshot);
}
}
private bool HasObjectChanged(GameObject gameObject, Snapshot full)
{
// No previous snapshot so it obviously changed
if (full == null || !full.GameObjects.ContainsKey(gameObject.ID))
return true;
var oldObject = full.GameObjects[gameObject.ID];
if (gameObject.Translation != oldObject.Translation)
return true;
return false;
}
