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1.16+ Terrain and Movement support (#1353)

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* First implementation
* Improve chunk reading performance
* Fix indentation
* Remove debug information
* Update MultiBlockChange packet
* Move skip varint to a method
* Fix crash when not using block palette
* Fix DataTypes.cs not compiling on .NET 4.0
Binary (0b) values not handled so converted to Hexadecimal (0x)
* Use the 1.16 chunk parsing code for 1.15 too
Document the differences in padding and factor the code
Co-authored-by: ORelio <ORelio@users.noreply.github.com>
This commit is contained in:
ReinforceZwei 2020-11-29 03:48:35 +08:00 • committed by GitHub
parent 9b5fde0689
commit 53bd56100f
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GPG key ID: 4AEE18F83AFDEB23
6 changed files with 1505 additions and 44 deletions
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106
MinecraftClient/Protocol/Handlers/Protocol18.cs
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@ -80,7 +80,7 @@ namespace MinecraftClient.Protocol.Handlers
this.pTerrain = new Protocol18Terrain(protocolVersion, dataTypes, handler);
this.packetPalette = new PacketTypeHandler(protocolVersion).GetTypeHandler();
if (handler.GetTerrainEnabled() && protocolversion > MC1152Version)
if (handler.GetTerrainEnabled() && protocolversion > MC1164Version)
{
Translations.WriteLineFormatted("extra.terrainandmovement_disabled");
handler.SetTerrainEnabled(false);
@ -101,9 +101,11 @@ namespace MinecraftClient.Protocol.Handlers
// Block palette
if (protocolversion >= MC113Version)
{
if (protocolVersion > MC1152Version && handler.GetTerrainEnabled())
if (protocolVersion > MC1164Version && handler.GetTerrainEnabled())
throw new NotImplementedException(Translations.Get("exception.palette.block"));
if (protocolVersion >= MC115Version)
if (protocolVersion >= MC116Version)
Block.Palette = new Palette116();
else if (protocolVersion >= MC115Version)
Block.Palette = new Palette115();
else if (protocolVersion >= MC114Version)
Block.Palette = new Palette114();
@ -398,6 +400,8 @@ namespace MinecraftClient.Protocol.Handlers
int chunkX = dataTypes.ReadNextInt(packetData);
int chunkZ = dataTypes.ReadNextInt(packetData);
bool chunksContinuous = dataTypes.ReadNextBool(packetData);
if (protocolversion >= MC116Version && protocolversion <= MC1161Version)
dataTypes.ReadNextBool(packetData); // Ignore old data - 1.16 to 1.16.1 only
ushort chunkMask = protocolversion >= MC19Version
? (ushort)dataTypes.ReadNextVarInt(packetData)
: dataTypes.ReadNextUShort(packetData);
@ -413,8 +417,23 @@ namespace MinecraftClient.Protocol.Handlers
{
if (protocolversion >= MC114Version)
dataTypes.ReadNextNbt(packetData); // Heightmaps - 1.14 and above
int biomesLength = 0;
if (protocolversion >= MC1162Version)
if (chunksContinuous)
biomesLength = dataTypes.ReadNextVarInt(packetData); // Biomes length - 1.16.2 and above
if (protocolversion >= MC115Version && chunksContinuous)
dataTypes.ReadData(1024 * 4, packetData); // Biomes - 1.15 and above
{
if (protocolversion >= MC1162Version)
{
for (int i = 0; i < biomesLength; i++)
{
// Biomes - 1.16.2 and above
// Don't use ReadNextVarInt because it cost too much time
dataTypes.SkipNextVarInt(packetData);
}
}
else dataTypes.ReadData(1024 * 4, packetData); // Biomes - 1.15 and above
}
int dataSize = dataTypes.ReadNextVarInt(packetData);
pTerrain.ProcessChunkColumnData(chunkX, chunkZ, chunkMask, 0, false, chunksContinuous, currentDimension, packetData);
}
@ -514,35 +533,62 @@ namespace MinecraftClient.Protocol.Handlers
case PacketTypesIn.MultiBlockChange:
if (handler.GetTerrainEnabled())
{
int chunkX = dataTypes.ReadNextInt(packetData);
int chunkZ = dataTypes.ReadNextInt(packetData);
int recordCount = protocolversion < MC18Version
? (int)dataTypes.ReadNextShort(packetData)
: dataTypes.ReadNextVarInt(packetData);
for (int i = 0; i < recordCount; i++)
if (protocolversion >= MC1162Version)
{
byte locationXZ;
ushort blockIdMeta;
int blockY;
if (protocolversion < MC18Version)
long chunkSection = dataTypes.ReadNextLong(packetData);
int sectionX = (int)(chunkSection >> 42);
int sectionY = (int)((chunkSection << 44) >> 44);
int sectionZ = (int)((chunkSection << 22) >> 42);
dataTypes.ReadNextBool(packetData); // Useless boolean
int blocksSize = dataTypes.ReadNextVarInt(packetData);
for (int i = 0; i < blocksSize; i++)
{
blockIdMeta = dataTypes.ReadNextUShort(packetData);
blockY = (ushort)dataTypes.ReadNextByte(packetData);
locationXZ = dataTypes.ReadNextByte(packetData);
}
else
{
locationXZ = dataTypes.ReadNextByte(packetData);
blockY = (ushort)dataTypes.ReadNextByte(packetData);
blockIdMeta = (ushort)dataTypes.ReadNextVarInt(packetData);
}
ulong block = (ulong)dataTypes.ReadNextVarLong(packetData);
int blockId = (int)(block >> 12);
int localX = (int)((block >> 8) & 0x0F);
int localZ = (int)((block >> 4) & 0x0F);
int localY = (int)(block & 0x0F);
int blockX = locationXZ >> 4;
int blockZ = locationXZ & 0x0F;
Block block = new Block(blockIdMeta);
handler.GetWorld().SetBlock(new Location(chunkX, chunkZ, blockX, blockY, blockZ), block);
Block b = new Block((ushort)blockId);
int blockX = (sectionX * 16) + localX;
int blockY = (sectionY * 16) + localY;
int blockZ = (sectionZ * 16) + localZ;
var l = new Location(blockX, blockY, blockZ);
handler.GetWorld().SetBlock(l, b);
}
}
else
{
int chunkX = dataTypes.ReadNextInt(packetData);
int chunkZ = dataTypes.ReadNextInt(packetData);
int recordCount = protocolversion < MC18Version
? (int)dataTypes.ReadNextShort(packetData)
: dataTypes.ReadNextVarInt(packetData);
for (int i = 0; i < recordCount; i++)
{
byte locationXZ;
ushort blockIdMeta;
int blockY;
if (protocolversion < MC18Version)
{
blockIdMeta = dataTypes.ReadNextUShort(packetData);
blockY = (ushort)dataTypes.ReadNextByte(packetData);
locationXZ = dataTypes.ReadNextByte(packetData);
}
else
{
locationXZ = dataTypes.ReadNextByte(packetData);
blockY = (ushort)dataTypes.ReadNextByte(packetData);
blockIdMeta = (ushort)dataTypes.ReadNextVarInt(packetData);
}
int blockX = locationXZ >> 4;
int blockZ = locationXZ & 0x0F;
Block block = new Block(blockIdMeta);
handler.GetWorld().SetBlock(new Location(chunkX, chunkZ, blockX, blockY, blockZ), block);
}
}
}
break;