public static void HandleChunkData(IPacket _packet, MultiplayerClient client)
{
var packet = (ChunkDataPacket)_packet;
var data = ZlibStream.UncompressBuffer(packet.CompressedData);
IChunk chunk;
var adjustedCoords = client.World.World.FindBlockPosition(
new Coordinates3D(packet.X, packet.Y, packet.Z), out chunk);
if (packet.Width == Chunk.Width
&& packet.Height == Chunk.Height
&& packet.Depth == Chunk.Depth) // Fast path
{
// Block IDs
Buffer.BlockCopy(data, 0, chunk.Blocks, 0, chunk.Blocks.Length);
// Block metadata
Buffer.BlockCopy(data, chunk.Blocks.Length, chunk.Metadata.Data, 0, chunk.Metadata.Data.Length);
// Block light
Buffer.BlockCopy(data, chunk.Blocks.Length + chunk.Metadata.Data.Length,
chunk.BlockLight.Data, 0, chunk.BlockLight.Data.Length);
// Sky light
Buffer.BlockCopy(data, chunk.Blocks.Length + chunk.Metadata.Data.Length + chunk.BlockLight.Data.Length,
chunk.SkyLight.Data, 0, chunk.SkyLight.Data.Length);
}
else // Slow path
{
int x = adjustedCoords.X, y = adjustedCoords.Y, z = adjustedCoords.Z;
int fullLength = packet.Width * packet.Height * packet.Depth; // Length of full sized byte section
int nibbleLength = fullLength / 2; // Length of nibble sections
for (int i = 0; i < fullLength; i++) // Iterate through block IDs
{
chunk.SetBlockID(new Coordinates3D(x, y, z), data[i]);
y++;
if (y >= packet.Height)
{
y = 0;
z++;
if (z >= packet.Depth)
{
z = 0;
x++;
if (x >= packet.Width)
{
x = 0;
}
}
}
}
x = adjustedCoords.X; y = adjustedCoords.Y; z = adjustedCoords.Z;
for (int i = fullLength; i < nibbleLength; i++) // Iterate through metadata
{
byte m = data[i];
chunk.SetMetadata(new Coordinates3D(x, y, z), (byte)(m & 0xF));
chunk.SetMetadata(new Coordinates3D(x, y + 1, z), (byte)(m & 0xF0 << 8));
y += 2;
if (y >= packet.Height)
{
y = 0;
z++;
if (z >= packet.Depth)
{
z = 0;
x++;
if (x >= packet.Width)
{
x = 0;
}
}
}
}
// TODO: Lighting
}
chunk.UpdateHeightMap();
client.OnChunkLoaded(new ChunkEventArgs(new ReadOnlyChunk(chunk)));
}
public static void HandleChunkData(IPacket _packet, MultiplayerClient client)
{
var packet = (ChunkDataPacket)_packet;
var coords = new Coordinates3D(packet.X, packet.Y, packet.Z);
var data = ZlibStream.UncompressBuffer(packet.CompressedData);
IChunk chunk;
var adjustedCoords = client.World.World.FindBlockPosition(coords, out chunk);
if (packet.Width == Chunk.Width &&
packet.Height == Chunk.Height &&
packet.Depth == Chunk.Depth) // Fast path
{
// Block IDs
Buffer.BlockCopy(data, 0, chunk.Data, 0, chunk.Data.Length);
// Block metadata
Buffer.BlockCopy(data, chunk.Data.Length, chunk.Metadata.Data, 0, chunk.Metadata.Data.Length);
// Block light
Buffer.BlockCopy(data, chunk.Data.Length + chunk.Metadata.Data.Length,
chunk.BlockLight.Data, 0, chunk.BlockLight.Data.Length);
// Sky light
Buffer.BlockCopy(data, chunk.Data.Length + chunk.Metadata.Data.Length + chunk.BlockLight.Data.Length,
chunk.SkyLight.Data, 0, chunk.SkyLight.Data.Length);
}
else // Slow path
{
int x = adjustedCoords.X, y = adjustedCoords.Y, z = adjustedCoords.Z;
int fullLength = packet.Width * packet.Height * packet.Depth; // Length of full sized byte section
int nibbleLength = fullLength / 2; // Length of nibble sections
for (int i = 0; i < fullLength; i++) // Iterate through block IDs
{
chunk.SetBlockID(new Coordinates3D(x, y, z), data[i]);
y++;
if (y >= packet.Height)
{
y = 0;
z++;
if (z >= packet.Depth)
{
z = 0;
x++;
if (x >= packet.Width)
{
x = 0;
}
}
}
}
x = adjustedCoords.X; y = adjustedCoords.Y; z = adjustedCoords.Z;
for (int i = fullLength; i < nibbleLength; i++) // Iterate through metadata
{
byte m = data[i];
chunk.SetMetadata(new Coordinates3D(x, y, z), (byte)(m & 0xF));
chunk.SetMetadata(new Coordinates3D(x, y + 1, z), (byte)(m & 0xF0 << 8));
y += 2;
if (y >= packet.Height)
{
y = 0;
z++;
if (z >= packet.Depth)
{
z = 0;
x++;
if (x >= packet.Width)
{
x = 0;
}
}
}
}
// TODO: Lighting
}
chunk.UpdateHeightMap();
chunk.TerrainPopulated = true;
client.OnChunkLoaded(new ChunkEventArgs(new ReadOnlyChunk(chunk)));
}
