public override void Perform(Vec3U16[] marks, Player p, Level lvl, Brush brush)
{
UndoCache cache = p.UndoBuffer;
UndoCacheNode node = cache.Tail;
if (node == null)
{
return;
}
int timeDelta = (int)DateTime.UtcNow.Subtract(Server.StartTime).TotalSeconds;
while (node != null)
{
lvl = LevelInfo.FindExact(node.MapName);
if (lvl == null || (p.level != null && !p.level.name.CaselessEq(lvl.name)))
{
node = node.Prev; continue;
}
List <UndoCacheItem> items = node.Items;
BufferedBlockSender buffer = new BufferedBlockSender(lvl);
for (int i = items.Count - 1; i >= 0; i--)
{
UndoCacheItem item = items[i];
ushort x, y, z;
node.Unpack(item.Index, out x, out y, out z);
DateTime time = node.BaseTime.AddTicks(item.TimeDelta * TimeSpan.TicksPerSecond);
if (time > End)
{
continue;
}
if (time < Start)
{
buffer.CheckIfSend(true); return;
}
byte tile, extTile;
item.GetBlock(out tile, out extTile);
if (lvl.DoBlockchange(p, x, y, z, tile, extTile))
{
buffer.Add(lvl.PosToInt(x, y, z), tile, extTile);
buffer.CheckIfSend(false);
}
}
buffer.CheckIfSend(true);
node = node.Prev;
}
}
static void PerformHighlight(Player p, long seconds, UndoCache cache)
{
UndoCacheNode node = cache.Tail;
if (node == null)
{
return;
}
while (node != null)
{
Level lvl = LevelInfo.FindExact(node.MapName);
if (lvl != p.level)
{
node = node.Prev; continue;
}
List <UndoCacheItem> items = node.Items;
for (int i = items.Count - 1; i >= 0; i--)
{
UndoCacheItem item = items[i];
ushort x, y, z;
node.Unpack(item.Index, out x, out y, out z);
DateTime time = node.BaseTime.AddSeconds(item.TimeDelta + seconds);
if (time < DateTime.UtcNow)
{
return;
}
byte newTile = 0, newExtTile = 0;
item.GetNewBlock(out newTile, out newExtTile);
p.SendBlockchange(x, y, z, newTile == Block.air ? Block.red : Block.green);
}
node = node.Prev;
}
}
void PerformUndo(Player p, ref Level saveLvl)
{
UndoCache cache = who.UndoBuffer;
UndoCacheNode node = cache.Tail;
if (node == null)
{
return;
}
Vec3U16 min = Min, max = Max;
bool undoArea = min.X != ushort.MaxValue;
Player.UndoPos Pos = default(Player.UndoPos);
int timeDelta = (int)DateTime.UtcNow.Subtract(Server.StartTime).TotalSeconds;
while (node != null)
{
Level lvl = LevelInfo.FindExact(node.MapName);
if (lvl == null || (p.level != null && !p.level.name.CaselessEq(lvl.name)))
{
node = node.Prev; continue;
}
Pos.mapName = lvl.name;
saveLvl = lvl;
List <UndoCacheItem> items = node.Items;
BufferedBlockSender buffer = new BufferedBlockSender(lvl);
if (!undoArea)
{
min = new Vec3U16(0, 0, 0);
max = new Vec3U16((ushort)(lvl.Width - 1), (ushort)(lvl.Height - 1), (ushort)(lvl.Length - 1));
}
for (int i = items.Count - 1; i >= 0; i--)
{
UndoCacheItem item = items[i];
node.Unpack(item.Index, out Pos.x, out Pos.y, out Pos.z);
if (Pos.x < min.X || Pos.y < min.Y || Pos.z < min.Z ||
Pos.x > max.X || Pos.y > max.Y || Pos.z > max.Z)
{
continue;
}
DateTime time = node.BaseTime.AddTicks(item.TimeDelta * TimeSpan.TicksPerSecond);
if (time > End)
{
continue;
}
if (time < Start)
{
buffer.CheckIfSend(true); return;
}
item.GetNewBlock(out Pos.newtype, out Pos.newExtType);
item.GetBlock(out Pos.type, out Pos.extType);
UndoFile.UndoBlock(p, lvl, Pos, timeDelta, buffer);
}
buffer.CheckIfSend(true);
node = node.Prev;
}
}