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ChunkSerializer: implement support for persistent network chunk format

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This commit is contained in:
Dylan K. Taylor 2021-07-17 18:45:04 +01:00
parent e5327a0f3e
commit 17d0767db5
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GPG Key ID: 8927471A91CAFD3D
1 changed files with 14 additions and 5 deletions
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19
src/network/mcpe/serializer/ChunkSerializer.php
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@ -24,7 +24,9 @@ declare(strict_types=1);
namespace pocketmine\network\mcpe\serializer;
use pocketmine\block\tile\Spawnable;
use pocketmine\nbt\TreeRoot;
use pocketmine\network\mcpe\convert\RuntimeBlockMapping;
use pocketmine\network\mcpe\protocol\serializer\NetworkNbtSerializer;
use pocketmine\network\mcpe\protocol\serializer\PacketSerializer;
use pocketmine\network\mcpe\protocol\serializer\PacketSerializerContext;
use pocketmine\utils\Binary;
@ -58,7 +60,7 @@ final class ChunkSerializer{
$stream = PacketSerializer::encoder($encoderContext);
$subChunkCount = self::getSubChunkCount($chunk);
for($y = 0; $y < $subChunkCount; ++$y){
self::serializeSubChunk($chunk->getSubChunk($y), $blockMapper, $stream);
self::serializeSubChunk($chunk->getSubChunk($y), $blockMapper, $stream, false);
}
$stream->put($chunk->getBiomeIdArray());
$stream->putByte(0); //border block array count
@ -72,14 +74,14 @@ final class ChunkSerializer{
return $stream->getBuffer();
}
public static function serializeSubChunk(SubChunk $subChunk, RuntimeBlockMapping $blockMapper, PacketSerializer $stream) : void{
public static function serializeSubChunk(SubChunk $subChunk, RuntimeBlockMapping $blockMapper, PacketSerializer $stream, bool $persistentBlockStates) : void{
$layers = $subChunk->getBlockLayers();
$stream->putByte(8); //version
$stream->putByte(count($layers));
foreach($layers as $blocks){
$stream->putByte(($blocks->getBitsPerBlock() << 1) | 1); //last 1-bit means "network format", but seems pointless
$stream->putByte(($blocks->getBitsPerBlock() << 1) | ($persistentBlockStates ? 0 : 1));
$stream->put($blocks->getWordArray());
$palette = $blocks->getPalette();
@ -87,8 +89,15 @@ final class ChunkSerializer{
//but since we know they are always unsigned, we can avoid the extra fcall overhead of
//zigzag and just shift directly.
$stream->putUnsignedVarInt(count($palette) << 1); //yes, this is intentionally zigzag
foreach($palette as $p){
$stream->put(Binary::writeUnsignedVarInt($blockMapper->toRuntimeId($p) << 1));
if($persistentBlockStates){
$nbtSerializer = new NetworkNbtSerializer();
foreach($palette as $p){
$stream->put($nbtSerializer->write(new TreeRoot($blockMapper->getBedrockKnownStates()[$blockMapper->toRuntimeId($p)])));
}
}else{
foreach($palette as $p){
$stream->put(Binary::writeUnsignedVarInt($blockMapper->toRuntimeId($p) << 1));
}
}
}
}