void BroadcastMovementChange(Position newPos, Position delta)
{
Position = newPos;
bool posChanged = (delta.X != 0) || (delta.Y != 0) || (delta.Z != 0);
bool rotChanged = (delta.R != 0) || (delta.L != 0);
Packet packet;
// create the movement packet
if (delta.FitsIntoMoveRotatePacket && positionSyncCounter < PositionSyncInterval)
{
if (posChanged && rotChanged)
{
// incremental position + rotation update
packet = Packet.MakeMoveRotate(Id, new Position {
X = delta.X,
Y = delta.Y,
Z = delta.Z,
R = newPos.R,
L = newPos.L
});
}
else if (posChanged)
{
// incremental position update
packet = Packet.MakeMove(Id, delta);
}
else if (rotChanged)
{
// absolute rotation update
packet = Packet.MakeRotate(Id, newPos);
}
else
{
return;
}
}
else
{
// full (absolute position + rotation) update
packet = Packet.MakeTeleport(Id, newPos);
}
positionSyncCounter++;
if (positionSyncCounter >= PositionSyncInterval)
{
positionSyncCounter = 0;
}
Server.Players.Send(this, packet);
}
void SendMap()
{
// write MapBegin
//Logger.Log( "Send: MapBegin()" );
writer.Write(OpCode.MapBegin);
// grab a compressed copy of the map
byte[] blockData;
Map map = Server.Map;
using (MemoryStream mapStream = new MemoryStream()) {
using (GZipStream compressor = new GZipStream(mapStream, CompressionMode.Compress)) {
int convertedBlockCount = IPAddress.HostToNetworkOrder(map.Volume);
compressor.Write(BitConverter.GetBytes(convertedBlockCount), 0, 4);
byte[] rawData = (UsesCustomBlocks ? map.Blocks : map.GetFallbackMap());
compressor.Write(rawData, 0, rawData.Length);
}
blockData = mapStream.ToArray();
}
// Transfer the map copy
byte[] buffer = new byte[1024];
int mapBytesSent = 0;
while (mapBytesSent < blockData.Length)
{
int chunkSize = blockData.Length - mapBytesSent;
if (chunkSize > 1024)
{
chunkSize = 1024;
}
else
{
// CRC fix for ManicDigger
for (int i = 0; i < buffer.Length; i++)
{
buffer[i] = 0;
}
}
Buffer.BlockCopy(blockData, mapBytesSent, buffer, 0, chunkSize);
byte progress = (byte)(100 * mapBytesSent / blockData.Length);
// write in chunks of 1024 bytes or less
//Logger.Log( "Send: MapChunk({0},{1})", chunkSize, progress );
writer.Write(OpCode.MapChunk);
writer.Write((short)chunkSize);
writer.Write(buffer, 0, 1024);
writer.Write(progress);
mapBytesSent += chunkSize;
}
// write MapEnd
writer.Write(OpCode.MapEnd);
writer.Write((short)map.Width);
writer.Write((short)map.Height);
writer.Write((short)map.Length);
// write spawn point
writer.Write(Packet.MakeAddEntity(255, Name, map.Spawn).Bytes);
writer.Write(Packet.MakeTeleport(255, map.Spawn).Bytes);
lastValidPosition = map.Spawn;
}