public unsafe static void CompressMapSimple(Player p, Stream stream, LevelChunkStream dst)
{
const int bufferSize = 64 * 1024;
byte[] buffer = new byte[bufferSize];
int bIndex = 0;
// Store on stack instead of performing function call for every block in map
byte *conv = stackalloc byte[Block.ExtendedCount];
CalcFallbacks(p, conv);
Level lvl = p.level;
byte[] blocks = lvl.blocks;
float progScale = 100.0f / blocks.Length;
// compress the map data in 64 kb chunks
for (int i = 0; i < blocks.Length; ++i)
{
buffer[bIndex] = conv[blocks[i]];
bIndex++;
if (bIndex == bufferSize)
{
// '0' to indicate classic blocks
dst.chunkValue = p.hasExtBlocks ? (byte)0 : (byte)(i * progScale);
stream.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
if (bIndex > 0)
{
stream.Write(buffer, 0, bIndex);
}
}
public static void SendLevel(ClassicProtocol session, Level level, int volume)
{
using (LevelChunkStream dst = new LevelChunkStream(session))
using (Stream stream = dst.CompressMapHeader(volume))
{
if (level.MightHaveCustomBlocks())
{
CompressMap(level, stream, dst);
}
else
{
CompressMapSimple(level, stream, dst);
}
}
}
public void SendLevel(Level prev, Level level)
{
int volume = level.blocks.Length;
if (player.Supports(CpeExt.FastMap))
{
Send(Packet.LevelInitaliseExt(volume));
}
else
{
Send(Packet.LevelInitalise());
}
if (player.hasBlockDefs)
{
if (prev != null && prev != level)
{
RemoveOldLevelCustomBlocks(prev);
}
BlockDefinition.SendLevelCustomBlocks(player);
if (player.Supports(CpeExt.InventoryOrder))
{
BlockDefinition.SendLevelInventoryOrder(player);
}
}
using (LevelChunkStream dst = new LevelChunkStream(player))
using (Stream stream = LevelChunkStream.CompressMapHeader(player, volume, dst))
{
if (level.MightHaveCustomBlocks())
{
LevelChunkStream.CompressMap(player, stream, dst);
}
else
{
LevelChunkStream.CompressMapSimple(player, stream, dst);
}
}
// Force players to read the MOTD (clamped to 3 seconds at most)
if (level.Config.LoadDelay > 0)
{
Thread.Sleep(level.Config.LoadDelay);
}
Send(Packet.LevelFinalise(level.Width, level.Height, level.Length));
}
internal static Stream CompressMapHeader(Player player, int volume, LevelChunkStream dst)
{
Stream stream = null;
if (player.Supports(CpeExt.FastMap))
{
stream = new DeflateStream(dst, CompressionMode.Compress, true);
}
else
{
stream = new GZipStream(dst, CompressionMode.Compress, true);
byte[] buffer = new byte[4]; NetUtils.WriteI32(volume, buffer, 0);
stream.Write(buffer, 0, sizeof(int));
}
return(stream);
}
unsafe static void CompressMapSimple(Level lvl, Stream stream, LevelChunkStream dst)
{
const int bufferSize = 64 * 1024;
byte[] buffer = new byte[bufferSize];
int bIndex = 0;
ClassicProtocol s = dst.session;
byte[] blocks = lvl.blocks;
float progScale = 100.0f / blocks.Length;
// Store on stack instead of performing function call for every block in map
byte *conv = stackalloc byte[256];
for (int i = 0; i < 256; i++)
{
conv[i] = (byte)s.ConvertBlock((BlockID)i);
}
// compress the map data in 64 kb chunks
for (int i = 0; i < blocks.Length; ++i)
{
buffer[bIndex] = conv[blocks[i]];
bIndex++;
if (bIndex == bufferSize)
{
// '0' to indicate this chunk has lower 8 bits of block ids
dst.chunkValue = s.hasExtBlocks ? (byte)0 : (byte)(i * progScale);
stream.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
if (bIndex > 0)
{
stream.Write(buffer, 0, bIndex);
}
}
public override void SendLevel(Level prev, Level level)
{
int volume = level.blocks.Length;
if (Supports(CpeExt.FastMap))
{
Send(Packet.LevelInitaliseExt(volume));
}
else
{
Send(Packet.LevelInitalise());
}
if (hasBlockDefs)
{
if (prev != null && prev != level)
{
RemoveOldLevelCustomBlocks(prev);
}
BlockDefinition.SendLevelCustomBlocks(player);
if (Supports(CpeExt.InventoryOrder))
{
BlockDefinition.SendLevelInventoryOrder(player);
}
}
LevelChunkStream.SendLevel(this, level, volume);
// Force players to read the MOTD (clamped to 3 seconds at most)
if (level.Config.LoadDelay > 0)
{
Thread.Sleep(level.Config.LoadDelay);
}
Send(Packet.LevelFinalise(level.Width, level.Height, level.Length));
}
public unsafe static void CompressMap(Player p, Stream stream, LevelChunkStream dst)
{
const int bufferSize = 64 * 1024;
byte[] buffer = new byte[bufferSize];
int bIndex = 0;
// Store on stack instead of performing function call for every block in map
byte *conv = stackalloc byte[Block.ExtendedCount];
byte *convExt = conv + Block.Count;
#if TEN_BIT_BLOCKS
byte *convExt2 = conv + Block.Count * 2;
byte *convExt3 = conv + Block.Count * 3;
#endif
CalcFallbacks(p, conv);
Level lvl = p.level;
byte[] blocks = lvl.blocks;
float progScale = 100.0f / blocks.Length;
// compress the map data in 64 kb chunks
#if TEN_BIT_BLOCKS
if (p.hasExtBlocks)
{
byte[] buffer2 = new byte[bufferSize];
using (LevelChunkStream dst2 = new LevelChunkStream(p))
using (Stream stream2 = LevelChunkStream.CompressMapHeader(p, blocks.Length, dst2))
{
dst.chunkValue = 0; // 'classic' blocks
dst2.chunkValue = 1; // 'extended' blocks
for (int i = 0; i < blocks.Length; ++i)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
buffer[bIndex] = lvl.GetExtTile(i);
buffer2[bIndex] = 0;
}
else if (block == Block.custom_block_2)
{
buffer[bIndex] = lvl.GetExtTile(i);
buffer2[bIndex] = 1;
}
else if (block == Block.custom_block_3)
{
buffer[bIndex] = lvl.GetExtTile(i);
buffer2[bIndex] = 2;
}
else
{
buffer[bIndex] = conv[block];
buffer2[bIndex] = 0;
}
bIndex++;
if (bIndex == bufferSize)
{
stream.Write(buffer, 0, bufferSize);
stream2.Write(buffer2, 0, bufferSize);
bIndex = 0;
}
}
if (bIndex > 0)
{
stream2.Write(buffer2, 0, bIndex);
}
}
}
else if (p.hasBlockDefs)
{
for (int i = 0; i < blocks.Length; ++i)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
buffer[bIndex] = lvl.GetExtTile(i);
}
else if (block == Block.custom_block_2)
{
buffer[bIndex] = convExt2[lvl.GetExtTile(i)];
}
else if (block == Block.custom_block_3)
{
buffer[bIndex] = convExt3[lvl.GetExtTile(i)];
}
else
{
buffer[bIndex] = conv[block];
}
bIndex++;
if (bIndex == bufferSize)
{
dst.chunkValue = (byte)(i * progScale);
stream.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
}
else
{
for (int i = 0; i < blocks.Length; ++i)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
block = convExt[lvl.GetExtTile(i)];
}
else if (block == Block.custom_block_2)
{
block = convExt2[lvl.GetExtTile(i)];
}
else if (block == Block.custom_block_3)
{
block = convExt3[lvl.GetExtTile(i)];
}
buffer[bIndex] = conv[block];
bIndex++;
if (bIndex == bufferSize)
{
dst.chunkValue = (byte)(i * progScale);
stream.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
}
#else
if (p.hasBlockDefs)
{
for (int i = 0; i < blocks.Length; ++i)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
buffer[bIndex] = lvl.GetExtTile(i);
}
else
{
buffer[bIndex] = conv[block];
}
bIndex++;
if (bIndex == bufferSize)
{
dst.chunkValue = (byte)(i * progScale);
stream.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
}
else
{
for (int i = 0; i < blocks.Length; ++i)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
block = convExt[lvl.GetExtTile(i)];
}
buffer[bIndex] = conv[block];
bIndex++;
if (bIndex == bufferSize)
{
dst.chunkValue = (byte)(i * progScale);
stream.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
}
#endif
if (bIndex > 0)
{
stream.Write(buffer, 0, bIndex);
}
}
unsafe static void CompressMap(Level lvl, Stream stream, LevelChunkStream dst)
{
const int bufferSize = 64 * 1024;
byte[] buffer = new byte[bufferSize];
int bIndex = 0;
ClassicProtocol s = dst.session;
byte[] blocks = lvl.blocks;
float progScale = 100.0f / blocks.Length;
// Store on stack instead of performing function call for every block in map
byte *conv = stackalloc byte[Block.SUPPORTED_COUNT];
byte *convExt = conv + 256; // 256 blocks per group/class
#if TEN_BIT_BLOCKS
byte *convExt2 = conv + 256 * 2;
byte *convExt3 = conv + 256 * 3;
#endif
for (int j = 0; j < Block.SUPPORTED_COUNT; j++)
{
conv[j] = (byte)s.ConvertBlock((BlockID)j);
}
// compress the map data in 64 kb chunks
#if TEN_BIT_BLOCKS
if (s.hasExtBlocks)
{
// Initially assume all custom blocks are <= 255
int i;
for (i = 0; i < blocks.Length; i++)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
buffer[bIndex] = lvl.GetExtTile(i);
}
else if (block == Block.custom_block_2)
{
break;
}
else if (block == Block.custom_block_3)
{
break;
}
else
{
buffer[bIndex] = conv[block];
}
bIndex++;
if (bIndex == bufferSize)
{
stream.Write(buffer, 0, bufferSize);
bIndex = 0;
}
}
// Check if map only used custom blocks <= 255
if (bIndex > 0)
{
stream.Write(buffer, 0, bIndex);
}
if (i == blocks.Length)
{
return;
}
bIndex = 0;
// Nope - have to go slower path now
using (LevelChunkStream dst2 = new LevelChunkStream(s))
using (Stream stream2 = dst2.CompressMapHeader(blocks.Length))
{
dst2.chunkValue = 1; // 'extended' blocks
byte[] buffer2 = new byte[bufferSize];
// Need to fill in all the upper 8 bits of blocks before this one with 0
for (int j = 0; j < i; j += bufferSize)
{
int len = Math.Min(bufferSize, i - j);
stream2.Write(buffer2, 0, len);
}
for (; i < blocks.Length; i++)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
buffer[bIndex] = lvl.GetExtTile(i);
buffer2[bIndex] = 0;
}
else if (block == Block.custom_block_2)
{
buffer[bIndex] = lvl.GetExtTile(i);
buffer2[bIndex] = 1;
}
else if (block == Block.custom_block_3)
{
buffer[bIndex] = lvl.GetExtTile(i);
buffer2[bIndex] = 2;
}
else
{
buffer[bIndex] = conv[block];
buffer2[bIndex] = 0;
}
bIndex++;
if (bIndex == bufferSize)
{
stream.Write(buffer, 0, bufferSize);
stream2.Write(buffer2, 0, bufferSize);
bIndex = 0;
}
}
if (bIndex > 0)
{
stream2.Write(buffer2, 0, bIndex);
}
}
}
else
{
for (int i = 0; i < blocks.Length; i++)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
buffer[bIndex] = convExt[lvl.GetExtTile(i)];
}
else if (block == Block.custom_block_2)
{
buffer[bIndex] = convExt2[lvl.GetExtTile(i)];
}
else if (block == Block.custom_block_3)
{
buffer[bIndex] = convExt3[lvl.GetExtTile(i)];
}
else
{
buffer[bIndex] = conv[block];
}
bIndex++;
if (bIndex == bufferSize)
{
dst.chunkValue = (byte)(i * progScale);
stream.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
}
#else
if (s.hasBlockDefs)
{
for (int i = 0; i < blocks.Length; i++)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
buffer[bIndex] = lvl.GetExtTile(i);
}
else
{
buffer[bIndex] = conv[block];
}
bIndex++;
if (bIndex == bufferSize)
{
dst.chunkValue = (byte)(i * progScale);
stream.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
}
else
{
for (int i = 0; i < blocks.Length; i++)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
buffer[bIndex] = convExt[lvl.GetExtTile(i)];
}
else
{
buffer[bIndex] = conv[block];
}
bIndex++;
if (bIndex == bufferSize)
{
dst.chunkValue = (byte)(i * progScale);
stream.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
}
#endif
if (bIndex > 0)
{
stream.Write(buffer, 0, bIndex);
}
}
public unsafe static void CompressMap(Player p, LevelChunkStream dst)
{
const int bufferSize = 64 * 1024;
byte[] buffer = new byte[bufferSize];
int bIndex = 0;
// Store on stack instead of performing function call for every block in map
byte *conv = stackalloc byte[Block.Count];
byte *convCPE = stackalloc byte[Block.Count];
for (int i = 0; i < 256; i++)
{
conv[i] = Block.Convert((byte)i);
}
// Convert custom blocks (that overwrote core blocks) to their fallbacks
if (!p.hasBlockDefs)
{
for (int i = 0; i < Block.CpeCount; i++)
{
BlockDefinition def = p.level.CustomBlockDefs[i];
if (def != null)
{
conv[i] = def.FallBack;
}
}
}
// Convert CPE blocks to their fallbacks
if (!p.hasCustomBlocks)
{
for (int i = 0; i < Block.Count; i++)
{
convCPE[i] = Block.ConvertCPE((byte)i);
conv[i] = Block.ConvertCPE(conv[i]);
}
}
Level lvl = p.level;
bool hasBlockDefs = p.hasBlockDefs;
using (GZipStream gs = new GZipStream(dst, CompressionMode.Compress, true)) {
byte[] blocks = lvl.blocks;
NetUtils.WriteI32(blocks.Length, buffer, 0);
gs.Write(buffer, 0, sizeof(int));
dst.length = blocks.Length;
// compress the map data in 64 kb chunks
if (p.hasCustomBlocks)
{
for (int i = 0; i < blocks.Length; ++i)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
buffer[bIndex] = hasBlockDefs ? lvl.GetExtTile(i) : lvl.GetFallbackExtTile(i);
}
else
{
buffer[bIndex] = conv[block];
}
bIndex++;
if (bIndex == bufferSize)
{
dst.position = i;
gs.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
}
else
{
for (int i = 0; i < blocks.Length; ++i)
{
byte block = blocks[i];
if (block == Block.custom_block)
{
block = hasBlockDefs ? lvl.GetExtTile(i) : lvl.GetFallbackExtTile(i);
buffer[bIndex] = convCPE[block];
}
else
{
buffer[bIndex] = conv[block];
}
bIndex++;
if (bIndex == bufferSize)
{
dst.position = i;
gs.Write(buffer, 0, bufferSize); bIndex = 0;
}
}
}
if (bIndex > 0)
{
gs.Write(buffer, 0, bIndex);
}
}
}
