Added level-settings.auto-tick-rate property, added Level tick rate

src/pocketmine/Server.php

@@ -196,6 +196,8 @@ class Server{
 	private $networkCompressionAsync = true;
 	private $networkCompressionLevel = 7;
 
+	private $autoTickRate = true;
+
 	/** @var BaseLang */
 	private $baseLang;
 
@@ -224,8 +226,6 @@ class Server{
 
 	/** @var Level[] */
 	private $levels = [];
-	private $offendingLevels = [];
-	private $offendingTicks = [];
 
 	/** @var Level */
 	private $levelDefault = null;
@@ -1530,6 +1530,8 @@ class Server{
 		$this->networkCompressionLevel = $this->getProperty("network.compression-level", 7);
 		$this->networkCompressionAsync = $this->getProperty("network.async-compression", true);
 
+		$this->autoTickRate = $this->getProperty("level-settings.auto-tick-rate", true);
+
 		$this->scheduler = new ServerScheduler();
 
 		if($this->getConfigBoolean("enable-rcon", false) === true){
@@ -2154,27 +2156,34 @@ class Server{
 	}
 
 	private function checkTickUpdates($currentTick){
-
-		$tickLimit = 50 / count($this->levels);
-		$levelTimes = [];
-
-		$startTime = microtime(true);
 		//Do level ticks
 		foreach($this->getLevels() as $level){
-			if(isset($this->offendingLevels[$level->getId()]) and $this->offendingTicks[$level->getId()]-- > 0){
+			if($level->getTickRate() > 1 and --$level->tickRateCounter > 0){
 				continue;
 			}
 			try{
 				$levelTime = microtime(true);
 				$level->doTick($currentTick);
-				$levelMs = (microtime(true) - $levelTime) * 1000;
-				$levelTimes[$level->getId()] = $levelMs;
-				if(isset($this->offendingLevels[$level->getId()])){
-					if($levelMs < $tickLimit and --$this->offendingLevels[$level->getId()] <= 0){
-						unset($this->offendingLevels[$level->getId()]);
-						unset($this->offendingTicks[$level->getId()]);
-					}else{
-						$this->offendingTicks[$level->getId()] = $this->offendingLevels[$level->getId()];
+				$tickMs = (microtime(true) - $levelTime) * 1000;
+
+				if($this->autoTickRate){
+					if($tickMs < 50 and $level->getTickRate() > 1){
+						if($level->getTickRate() > 1){
+							$level->setTickRate($r = $level->getTickRate() - 1);
+							if($r > 1){
+								$level->tickRateCounter = $level->getTickRate();
+							}
+							$this->getLogger()->debug("Raising level \"".$level->getName()."\" tick rate to ".$level->getTickRate()." ticks");
+						}
+					}elseif($tickMs >= 50){
+						if($level->getTickRate() === 1){
+							$level->setTickRate(max(2, min(10, floor($tickMs / 50))));
+							$this->getLogger()->debug("Set level \"".$level->getName()."\" tick rate to ".$level->getTickRate()." ticks");
+						}elseif(($tickMs / $level->getTickRate()) >= 50 and $level->getTickRate() < 10){ //Limit?
+							$level->setTickRate($level->getTickRate() + 1);
+							$this->getLogger()->debug("Set level \"".$level->getName()."\" tick rate to ".$level->getTickRate()." ticks");
+						}
+						$level->tickRateCounter = $level->getTickRate();
 					}
 				}
 			}catch(\Exception $e){
@@ -2184,26 +2193,6 @@ class Server{
 				}
 			}
 		}
-
-		$totalTime = (microtime(true) - $startTime) * 1000;
-
-		if($totalTime > 50){
-			arsort($levelTimes);
-			foreach($levelTimes as $levelId => $t){
-				$totalTime -= $t;
-				if(!isset($this->offendingLevels[$levelId])){
-					$this->offendingLevels[$levelId] = max(1, min(10, floor($t / 50)));
-				}elseif($this->offendingLevels[$levelId] < 10){ //Limit?
-					++$this->offendingLevels[$levelId];
-				}
-				$this->offendingTicks[$levelId] = $this->offendingLevels[$levelId];
-
-				if($totalTime <= 50){
-					break;
-				}
-			}
-		}
-
 	}
 
 	public function doAutoSave(){

src/pocketmine/level/Level.php

@@ -125,37 +125,37 @@ class Level implements ChunkManager, Metadatable{
 	const TIME_FULL = 24000;
 
 	/** @var Tile[] */
-	protected $tiles = [];
+	private $tiles = [];
 
 	/** @var Player[] */
-	protected $players = [];
+	private $players = [];
 
 	/** @var Entity[] */
-	protected $entities = [];
+	private $entities = [];
 
 	/** @var Entity[] */
 	public $updateEntities = [];
 	/** @var Tile[] */
 	public $updateTiles = [];
 
-	protected $blockCache = [];
+	private $blockCache = [];
 
 	/** @var Server */
-	protected $server;
+	private $server;
 
 	/** @var int */
-	protected $levelId;
+	private $levelId;
 
 	/** @var LevelProvider */
-	protected $provider;
+	private $provider;
 
 	/** @var Player[][] */
-	protected $usedChunks = [];
+	private $usedChunks = [];
 
 	/** @var FullChunk[]|Chunk[] */
-	protected $unloadQueue;
+	private $unloadQueue;
 
-	protected $time;
+	private $time;
 	public $stopTime;
 
 	private $folderName;
@@ -164,7 +164,7 @@ class Level implements ChunkManager, Metadatable{
 	private $chunks = [];
 
 	/** @var Vector3[][] */
-	protected $changedBlocks = [];
+	private $changedBlocks = [];
 
 	/** @var ReversePriorityQueue */
 	private $updateQueue;
@@ -196,11 +196,11 @@ class Level implements ChunkManager, Metadatable{
 	/** @var \SplFixedArray */
 	private $blockStates;
 
-	protected $chunkTickRadius;
-	protected $chunkTickList = [];
-	protected $chunksPerTick;
-	protected $clearChunksOnTick;
-	protected $randomTickBlocks = [
+	private $chunkTickRadius;
+	private $chunkTickList = [];
+	private $chunksPerTick;
+	private $clearChunksOnTick;
+	private $randomTickBlocks = [
 		Block::GRASS => Grass::class,
 		Block::SAPLING => Sapling::class,
 		Block::LEAVES => Leaves::class,
@@ -227,10 +227,13 @@ class Level implements ChunkManager, Metadatable{
 	/** @var LevelTimings */
 	public $timings;
 
+	private $tickRate;
+	public $tickRateCounter = 0;
+
 	/** @var Generator */
-	protected $generator;
+	private $generator;
 	/** @var Generator */
-	protected $generatorInstance;
+	private $generatorInstance;
 
 	/**
 	 * Returns the chunk unique hash/key
@@ -317,6 +320,15 @@ class Level implements ChunkManager, Metadatable{
 		$this->timings = new LevelTimings($this);
 		$this->temporalPosition = new Position(0, 0, 0, $this);
 		$this->temporalVector = new Vector3(0, 0, 0);
+		$this->tickRate = 1;
+	}
+
+	public function getTickRate(){
+		return $this->tickRate;
+	}
+
+	public function setTickRate($tickRate){
+		$this->tickRate = (int) $tickRate;
 	}
 
 	public function initLevel(){
@@ -1935,7 +1947,7 @@ class Level implements ChunkManager, Metadatable{
 		$this->chunkSendQueue[$index][spl_object_hash($player)] = $player;
 	}
 
-	protected function processChunkRequest(){
+	private function processChunkRequest(){
 		if(count($this->chunkSendQueue) > 0){
 			$this->timings->syncChunkSendTimer->startTiming();
 
@@ -2088,7 +2100,7 @@ class Level implements ChunkManager, Metadatable{
 		return true;
 	}
 
-	protected function queueUnloadChunk($x, $z){
+	private function queueUnloadChunk($x, $z){
 		$this->unloadQueue[$index = Level::chunkHash($x, $z)] = microtime(true);
 		unset($this->chunkTickList[$index]);
 	}
@@ -2384,7 +2396,7 @@ class Level implements ChunkManager, Metadatable{
 		$this->timings->doChunkGC->stopTiming();
 	}
 
-	protected function unloadChunks(){
+	private function unloadChunks(){
 		if(count($this->unloadQueue) > 0){
 			$X = null;
 			$Z = null;

src/pocketmine/resources/pocketmine.yml

@@ -44,6 +44,8 @@ level-settings:
  #If true, converts from a format that is not the default to the default format on load
  #NOTE: This is currently not implemented
  convert-format: false
+ #Automatically change levels tick rate to maintain 20 ticks per second
+ auto-tick-rate: true
 
 chunk-sending:
  #Amount of chunks sent to players per tick