diff --git a/src/CrashDump.php b/src/CrashDump.php
index 77e193fff..a2d50d044 100644
--- a/src/CrashDump.php
+++ b/src/CrashDump.php
@@ -316,10 +316,16 @@ class CrashDump{
 		$this->addLine("OS : " . PHP_OS . ", " . Utils::getOS());
 	}
 
+	/**
+	 * @param string $line
+	 */
 	public function addLine($line = "") : void{
 		fwrite($this->fp, $line . PHP_EOL);
 	}
 
+	/**
+	 * @param string $str
+	 */
 	public function add($str) : void{
 		fwrite($this->fp, $str);
 	}
diff --git a/src/network/mcpe/protocol/CraftingDataPacket.php b/src/network/mcpe/protocol/CraftingDataPacket.php
index 0de48cd26..e25202b4b 100644
--- a/src/network/mcpe/protocol/CraftingDataPacket.php
+++ b/src/network/mcpe/protocol/CraftingDataPacket.php
@@ -161,6 +161,13 @@ class CraftingDataPacket extends DataPacket implements ClientboundPacket{
 		$this->cleanRecipes = $this->getBool();
 	}
 
+	/**
+	 * @param object              $entry
+	 * @param NetworkBinaryStream $stream
+	 * @param int                 $pos
+	 *
+	 * @return int
+	 */
 	private static function writeEntry($entry, NetworkBinaryStream $stream, int $pos) : int{
 		if($entry instanceof ShapelessRecipe){
 			return self::writeShapelessRecipe($entry, $stream, $pos);
diff --git a/src/network/mcpe/protocol/DataPacket.php b/src/network/mcpe/protocol/DataPacket.php
index 678409e27..7e90ce6c9 100644
--- a/src/network/mcpe/protocol/DataPacket.php
+++ b/src/network/mcpe/protocol/DataPacket.php
@@ -119,10 +119,17 @@ abstract class DataPacket extends NetworkBinaryStream implements Packet{
 		return $data;
 	}
 
+	/**
+	 * @param string $name
+	 */
 	public function __get($name){
 		throw new \Error("Undefined property: " . get_class($this) . "::\$" . $name);
 	}
 
+	/**
+	 * @param string $name
+	 * @param mixed  $value
+	 */
 	public function __set($name, $value){
 		throw new \Error("Undefined property: " . get_class($this) . "::\$" . $name);
 	}
diff --git a/src/utils/Filesystem.php b/src/utils/Filesystem.php
index 094f7e45f..689a4fcdd 100644
--- a/src/utils/Filesystem.php
+++ b/src/utils/Filesystem.php
@@ -73,6 +73,11 @@ final class Filesystem{
 		}
 	}
 
+	/**
+	 * @param string $path
+	 *
+	 * @return string
+	 */
 	public static function cleanPath($path){
 		$result = str_replace(["\\", ".php", "phar://"], ["/", "", ""], $path);
 
diff --git a/src/utils/MainLogger.php b/src/utils/MainLogger.php
index 9287ecc05..af7afb8e5 100644
--- a/src/utils/MainLogger.php
+++ b/src/utils/MainLogger.php
@@ -223,6 +223,12 @@ class MainLogger extends \AttachableThreadedLogger{
 		$this->notify();
 	}
 
+	/**
+	 * @param string $message
+	 * @param string $level
+	 * @param string $prefix
+	 * @param string $color
+	 */
 	protected function send($message, $level, $prefix, $color) : void{
 		$time = new \DateTime('now', new \DateTimeZone($this->timezone));
 
diff --git a/src/utils/Process.php b/src/utils/Process.php
index 356a1af2c..3728b159b 100644
--- a/src/utils/Process.php
+++ b/src/utils/Process.php
@@ -119,6 +119,9 @@ final class Process{
 		return count(ThreadManager::getInstance()->getAll()) + 3; //RakLib + MainLogger + Main Thread
 	}
 
+	/**
+	 * @param int $pid
+	 */
 	public static function kill($pid) : void{
 		$logger = \GlobalLogger::get();
 		if($logger instanceof MainLogger){
diff --git a/src/utils/ReversePriorityQueue.php b/src/utils/ReversePriorityQueue.php
index 0c1aafd2c..d9fa2d0e0 100644
--- a/src/utils/ReversePriorityQueue.php
+++ b/src/utils/ReversePriorityQueue.php
@@ -25,7 +25,14 @@ namespace pocketmine\utils;
 
 class ReversePriorityQueue extends \SplPriorityQueue{
 
+	/**
+	 * @param mixed $priority1
+	 * @param mixed $priority2
+	 *
+	 * @return int
+	 */
 	public function compare($priority1, $priority2){
+		//TODO: this will crash if non-numeric priorities are used
 		return (int) -($priority1 - $priority2);
 	}
 }
diff --git a/src/utils/ServerKiller.php b/src/utils/ServerKiller.php
index b8f2550d2..06059b84b 100644
--- a/src/utils/ServerKiller.php
+++ b/src/utils/ServerKiller.php
@@ -35,6 +35,9 @@ class ServerKiller extends Thread{
 	/** @var bool */
 	private $stopped = false;
 
+	/**
+	 * @param int $time
+	 */
 	public function __construct($time = 15){
 		$this->time = $time;
 	}
diff --git a/src/world/generator/biome/BiomeSelector.php b/src/world/generator/biome/BiomeSelector.php
index 843d520b2..187757442 100644
--- a/src/world/generator/biome/BiomeSelector.php
+++ b/src/world/generator/biome/BiomeSelector.php
@@ -66,18 +66,29 @@ abstract class BiomeSelector{
 		}
 	}
 
+	/**
+	 * @param float $x
+	 * @param float $z
+	 *
+	 * @return float
+	 */
 	public function getTemperature($x, $z){
 		return ($this->temperature->noise2D($x, $z, true) + 1) / 2;
 	}
 
+	/**
+	 * @param float $x
+	 * @param float $z
+	 *
+	 * @return float
+	 */
 	public function getRainfall($x, $z){
 		return ($this->rainfall->noise2D($x, $z, true) + 1) / 2;
 	}
 
 	/**
-	 * TODO: not sure on types here
-	 * @param int|float $x
-	 * @param int|float $z
+	 * @param int $x
+	 * @param int $z
 	 *
 	 * @return Biome
 	 */
diff --git a/src/world/generator/noise/Noise.php b/src/world/generator/noise/Noise.php
index 90e2b48eb..ecf42759d 100644
--- a/src/world/generator/noise/Noise.php
+++ b/src/world/generator/noise/Noise.php
@@ -33,10 +33,33 @@ use function assert;
 abstract class Noise{
 
 
+	/**
+	 * @param float $x
+	 * @param float $x1
+	 * @param float $x2
+	 * @param float $q0
+	 * @param float $q1
+	 *
+	 * @return float
+	 */
 	public static function linearLerp($x, $x1, $x2, $q0, $q1){
 		return (($x2 - $x) / ($x2 - $x1)) * $q0 + (($x - $x1) / ($x2 - $x1)) * $q1;
 	}
 
+	/**
+	 * @param float $x
+	 * @param float $y
+	 * @param float $q00
+	 * @param float $q01
+	 * @param float $q10
+	 * @param float $q11
+	 * @param float $x1
+	 * @param float $x2
+	 * @param float $y1
+	 * @param float $y2
+	 *
+	 * @return float
+	 */
 	public static function bilinearLerp($x, $y, $q00, $q01, $q10, $q11, $x1, $x2, $y1, $y2){
 		$dx1 = (($x2 - $x) / ($x2 - $x1));
 		$dx2 = (($x - $x1) / ($x2 - $x1));
@@ -48,6 +71,27 @@ abstract class Noise{
 		);
 	}
 
+	/**
+	 * @param float $x
+	 * @param float $y
+	 * @param float $z
+	 * @param float $q000
+	 * @param float $q001
+	 * @param float $q010
+	 * @param float $q011
+	 * @param float $q100
+	 * @param float $q101
+	 * @param float $q110
+	 * @param float $q111
+	 * @param float $x1
+	 * @param float $x2
+	 * @param float $y1
+	 * @param float $y2
+	 * @param float $z1
+	 * @param float $z2
+	 *
+	 * @return float
+	 */
 	public static function trilinearLerp($x, $y, $z, $q000, $q001, $q010, $q011, $q100, $q101, $q110, $q111, $x1, $x2, $y1, $y2, $z1, $z2){
 		$dx1 = (($x2 - $x) / ($x2 - $x1));
 		$dx2 = (($x - $x1) / ($x2 - $x1));
@@ -82,10 +126,30 @@ abstract class Noise{
 		$this->expansion = $expansion;
 	}
 
+	/**
+	 * @param float $x
+	 * @param float $z
+	 *
+	 * @return float
+	 */
 	abstract public function getNoise2D($x, $z);
 
+	/**
+	 * @param float $x
+	 * @param float $y
+	 * @param float $z
+	 *
+	 * @return float
+	 */
 	abstract public function getNoise3D($x, $y, $z);
 
+	/**
+	 * @param float $x
+	 * @param float $z
+	 * @param bool  $normalized
+	 *
+	 * @return float
+	 */
 	public function noise2D($x, $z, $normalized = false){
 		$result = 0;
 		$amp = 1;
@@ -109,6 +173,14 @@ abstract class Noise{
 		return $result;
 	}
 
+	/**
+	 * @param float $x
+	 * @param float $y
+	 * @param float $z
+	 * @param bool  $normalized
+	 *
+	 * @return float
+	 */
 	public function noise3D($x, $y, $z, $normalized = false){
 		$result = 0;
 		$amp = 1;
diff --git a/src/world/generator/noise/Simplex.php b/src/world/generator/noise/Simplex.php
index 85ee993b3..71ef32cff 100644
--- a/src/world/generator/noise/Simplex.php
+++ b/src/world/generator/noise/Simplex.php
@@ -209,6 +209,12 @@ class Simplex extends Noise{
 		return 32.0 * $n;
 	}
 
+	/**
+	 * @param float $x
+	 * @param float $y
+	 *
+	 * @return float
+	 */
 	public function getNoise2D($x, $y){
 		$x += $this->offsetX;
 		$y += $this->offsetY;
diff --git a/tests/phpstan/configs/gradual-level6.neon b/tests/phpstan/configs/gradual-level6.neon
index f96da02ef..6aa3e3e80 100644
--- a/tests/phpstan/configs/gradual-level6.neon
+++ b/tests/phpstan/configs/gradual-level6.neon
@@ -7,6 +7,6 @@ parameters:
 rules:
 	- PHPStan\Rules\Functions\MissingFunctionParameterTypehintRule
 	- PHPStan\Rules\Functions\MissingFunctionReturnTypehintRule
-	#- PHPStan\Rules\Methods\MissingMethodParameterTypehintRule
+	- PHPStan\Rules\Methods\MissingMethodParameterTypehintRule
 	#- PHPStan\Rules\Methods\MissingMethodReturnTypehintRule
 	- PHPStan\Rules\Properties\MissingPropertyTypehintRule