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performance: only calculate light for chunks inside ticking areas

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this produces a major performance improvement for large render distances, and reduces the impact of lighting calculation to zero on servers which have random blockupdates turned off.
This commit is contained in:
Dylan K. Taylor 2020-09-26 13:13:12 +01:00
parent b727972c76
commit 89cce4c749
4 changed files with 12 additions and 9 deletions
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12
src/world/World.php
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@ -895,7 +895,13 @@ class World implements ChunkManager{
$dz = mt_rand(-$randRange, $randRange);
$hash = World::chunkHash($dx + $chunkX, $dz + $chunkZ);
if(!isset($chunkTickList[$hash]) and isset($this->chunks[$hash])){
if(!$this->chunks[$hash]->isLightPopulated()){
//TODO: this might need to be checked after adjacent chunks are loaded in future
$lightPopulatedState = $this->chunks[$hash]->isLightPopulated();
if($lightPopulatedState !== true){
if($lightPopulatedState === false){
$this->chunks[$hash]->setLightPopulated(null);
$this->server->getAsyncPool()->submitTask(new LightPopulationTask($this, $this->chunks[$hash]));
}
continue;
}
//check adjacent chunks are loaded
@ -2143,10 +2149,6 @@ class World implements ChunkManager{
(new ChunkLoadEvent($this, $chunk, !$chunk->isGenerated()))->call();
if($chunk->isPopulated()){
$this->getServer()->getAsyncPool()->submitTask(new LightPopulationTask($this, $chunk));
}
if(!$this->isChunkInUse($x, $z)){
$this->logger->debug("Newly loaded chunk $x $z has no loaders registered, will be unloaded at next available opportunity");
$this->unloadChunkRequest($x, $z);

6
src/world/format/Chunk.php
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@ -58,7 +58,7 @@ class Chunk{
/** @var int */
private $dirtyFlags = 0;
/** @var bool */
/** @var bool|null */
protected $lightPopulated = false;
/** @var bool */
protected $terrainGenerated = false;
@ -387,11 +387,11 @@ class Chunk{
$this->dirtyFlags |= self::DIRTY_FLAG_BIOMES;
}
public function isLightPopulated() : bool{
public function isLightPopulated() : ?bool{
return $this->lightPopulated;
}
public function setLightPopulated(bool $value = true) : void{
public function setLightPopulated(?bool $value = true) : void{
$this->lightPopulated = $value;
}

2
src/world/format/io/FastChunkSerializer.php
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@ -59,7 +59,7 @@ final class FastChunkSerializer{
* TODO: tiles and entities
*/
public static function serialize(Chunk $chunk, bool $includeLight = true) : string{
$includeLight = $includeLight && $chunk->isLightPopulated();
$includeLight = $includeLight && $chunk->isLightPopulated() === true;
$stream = new BinaryStream();
$stream->putInt($chunk->getX());

1
src/world/light/LightPopulationTask.php
View File

@ -53,6 +53,7 @@ class LightPopulationTask extends AsyncTask{
public function __construct(World $world, Chunk $chunk){
$this->storeLocal(self::TLS_KEY_WORLD, $world);
[$this->chunkX, $this->chunkZ] = [$chunk->getX(), $chunk->getZ()];
$chunk->setLightPopulated(null);
$this->chunk = FastChunkSerializer::serialize($chunk);
}