protected override void Save(List <Player.UndoPos> buffer, string path)
{
UndoCacheNode node = new UndoCacheNode();
string lastLoggedName = "";
using (FileStream fs = File.Create(path)) {
BinaryWriter w = new BinaryWriter(fs);
long entriesPos = 0;
ChunkHeader last = default(ChunkHeader);
foreach (Player.UndoPos uP in buffer)
{
DateTime time = Server.StartTime.AddSeconds(uP.timeDelta);
int timeDiff = (int)(time - last.BaseTime).TotalSeconds;
if (last.LevelName != uP.mapName || timeDiff > (65535 >> 2) || last.Entries == ushort.MaxValue)
{
if (!LevelInfo.ExistsOffline(uP.mapName))
{
if (uP.mapName != lastLoggedName)
{
lastLoggedName = uP.mapName;
Server.s.Log("Missing map file \"" + lastLoggedName + "\", skipping undo entries");
}
continue;
}
Vec3U16 dims = IMapImporter.Formats[0].ReadDimensions(LevelInfo.LevelPath(uP.mapName));
node.Width = dims.X; node.Height = dims.Y; node.Length = dims.Z;
WriteChunkEntries(w, last.Entries, entriesPos);
node.MapName = uP.mapName;
last = WriteEmptyChunk(w, node, time, ref entriesPos);
}
UndoCacheItem item = UndoCacheItem.Make(node, 0, uP);
int flags = (item.Flags & 0xC000) | timeDiff;
w.Write((ushort)flags); w.Write(item.Index);
w.Write(item.Type); w.Write(item.NewType);
last.Entries++;
}
if (last.Entries > 0)
{
WriteChunkEntries(w, last.Entries, entriesPos);
}
}
}
/// <summary> Appends an item to the cache. </summary>
public void Add(Level lvl, Player.UndoPos item)
{
lock (AddLock) {
DateTime time = Server.StartTime.AddTicks(item.timeDelta * TimeSpan.TicksPerSecond);
if (Tail == null)
{
Tail = UndoCacheNode.Make(lvl, time); Head = Tail;
}
if (lvl.name != Tail.MapName || lvl.Width != Tail.Width || lvl.Height != Tail.Height ||
lvl.Length != Tail.Length || Math.Abs((time - Tail.BaseTime).TotalSeconds) > TimeDeltaMax)
{
UndoCacheNode node = UndoCacheNode.Make(lvl, time);
Tail.Next = node; node.Prev = Tail;
Tail = node;
}
short timeDiff = (short)(time - Tail.BaseTime).TotalSeconds;
Tail.Items.Add(UndoCacheItem.Make(Tail, timeDiff, ref item));
Count++;
}
}