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;
}