diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index 29d3ab302..968b39182 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -748,7 +748,7 @@ class Player extends Human implements CommandSender, InventoryHolder, IPlayer{
 		if($this->connected === false){
 			return false;
 		}
-		$this->server->getPluginManager()->callEvent($ev = DataPacketSendEvent::createEvent($this, $packet));
+		$this->server->getPluginManager()->callEvent($ev = $packet->getSendEvent($this));
 		if($ev->isCancelled()){
 			return false;
 		}
@@ -1288,7 +1288,7 @@ class Player extends Human implements CommandSender, InventoryHolder, IPlayer{
 			return;
 		}
 
-		$this->server->getPluginManager()->callEvent($ev = DataPacketReceiveEvent::createEvent($this, $packet));
+		$this->server->getPluginManager()->callEvent($ev = $packet->getReceiveEvent($this));
 		if($ev->isCancelled()){
 			return;
 		}
diff --git a/src/pocketmine/block/Fence.php b/src/pocketmine/block/Fence.php
index a9abe1551..a3575d44c 100644
--- a/src/pocketmine/block/Fence.php
+++ b/src/pocketmine/block/Fence.php
@@ -48,7 +48,7 @@ class Fence extends Transparent{
 			$this->y,
 			$this->z + $f2,
 			$this->x + $f1,
-			$this->y + 1, //TODO: check this, add extra bounding box
+			$this->y + 1,
 			$this->z + $f3
 		);
 	}
diff --git a/src/pocketmine/entity/Entity.php b/src/pocketmine/entity/Entity.php
index 68df97f32..645ec0c33 100644
--- a/src/pocketmine/entity/Entity.php
+++ b/src/pocketmine/entity/Entity.php
@@ -776,8 +776,7 @@ abstract class Entity extends Location implements Metadatable{
 	}
 
 	public function isInsideOfWater(){
-		$pos = Vector3::createVector($this->x, $y = ($this->y + $this->getEyeHeight()), $this->z);
-		$block = $this->level->getBlock($pos->floor());
+		$block = $this->level->getBlock(Vector3::createVector(Math::floorFloat($this->x), Math::floorFloat($y = ($this->y + $this->getEyeHeight())), Math::floorFloat($this->z)));
 
 		if($block instanceof Water){
 			$f = ($block->y + 1) - ($block->getFluidHeightPercent() - 0.1111111);
@@ -788,8 +787,7 @@ abstract class Entity extends Location implements Metadatable{
 	}
 
 	public function isInsideOfSolid(){
-		$pos = Vector3::createVector($this->x, $y = ($this->y + $this->getEyeHeight()), $this->z);
-		$block = $this->level->getBlock($pos->floor());
+		$block = $this->level->getBlock(Vector3::createVector(Math::floorFloat($this->x), Math::floorFloat($y = ($this->y + $this->getEyeHeight())), Math::floorFloat($this->z)));
 
 		$bb = $block->getBoundingBox();
 
diff --git a/src/pocketmine/math/AxisAlignedBB.php b/src/pocketmine/math/AxisAlignedBB.php
index c871036b2..b3ba52801 100644
--- a/src/pocketmine/math/AxisAlignedBB.php
+++ b/src/pocketmine/math/AxisAlignedBB.php
@@ -26,8 +26,8 @@ class AxisAlignedBB{
 
 
 	/** @var AxisAlignedBB[] */
-	private static $boundingBoxes = [];
-	private static $nextBoundingBox = 0;
+	public static $boundingBoxes = [];
+	public static $nextBoundingBox = 0;
 
 	public $minX;
 	public $minY;
@@ -126,11 +126,11 @@ class AxisAlignedBB{
 			$maxZ += $z;
 		}
 
-		return self::getBoundingBoxFromPool($minX, $minY, $minZ, $maxX, $maxY, $maxZ);
+		return AxisAlignedBB::getBoundingBoxFromPool($minX, $minY, $minZ, $maxX, $maxY, $maxZ);
 	}
 
 	public function grow($x, $y, $z){
-		return self::getBoundingBoxFromPool($this->minX - $x, $this->minY - $y, $this->minZ - $z, $this->maxX + $x, $this->maxY + $y, $this->maxZ + $z);
+		return AxisAlignedBB::getBoundingBoxFromPool($this->minX - $x, $this->minY - $y, $this->minZ - $z, $this->maxX + $x, $this->maxY + $y, $this->maxZ + $z);
 	}
 
 	public function expand($x, $y, $z){
@@ -156,7 +156,7 @@ class AxisAlignedBB{
 	}
 
 	public function shrink($x, $y, $z){
-		return self::getBoundingBoxFromPool($this->minX + $x, $this->minY + $y, $this->minZ + $z, $this->maxX - $x, $this->maxY - $y, $this->maxZ - $z);
+		return AxisAlignedBB::getBoundingBoxFromPool($this->minX + $x, $this->minY + $y, $this->minZ + $z, $this->maxX - $x, $this->maxY - $y, $this->maxZ - $z);
 	}
 
 	public function contract($x, $y, $z){
@@ -181,7 +181,7 @@ class AxisAlignedBB{
 	}
 
 	public function getOffsetBoundingBox($x, $y, $z){
-		return self::getBoundingBoxFromPool($this->minX + $x, $this->minY + $y, $this->minZ + $z, $this->maxX + $x, $this->maxY + $y, $this->maxZ + $z);
+		return AxisAlignedBB::getBoundingBoxFromPool($this->minX + $x, $this->minY + $y, $this->minZ + $z, $this->maxX + $x, $this->maxY + $y, $this->maxZ + $z);
 	}
 
 	public function calculateXOffset(AxisAlignedBB $bb, $x){
diff --git a/src/pocketmine/network/protocol/DataPacket.php b/src/pocketmine/network/protocol/DataPacket.php
index fc175c28d..c99377a45 100644
--- a/src/pocketmine/network/protocol/DataPacket.php
+++ b/src/pocketmine/network/protocol/DataPacket.php
@@ -23,17 +23,27 @@ namespace pocketmine\network\protocol;
 
 #include <rules/DataPacket.h>
 
-use pocketmine\item\Item;
 #ifndef COMPILE
 use pocketmine\utils\Binary;
 #endif
 
+use pocketmine\event\server\DataPacketSendEvent;
+use pocketmine\event\server\DataPacketReceiveEvent;
+use pocketmine\item\Item;
+use pocketmine\Player;
+
+
 abstract class DataPacket extends \stdClass{
 
 	/** @var DataPacket[] */
 	public static $pool = [];
 	public static $next = 0;
 
+	/** @var DataPacketSendEvent */
+	private $sendEvent = null;
+	/** @var DataPacketReceiveEvent */
+	private $receiveEvent = null;
+
 	public static function getFromPool(){
 		if(static::$next >= count(static::$pool)){
 			static::$pool[] = new static;
@@ -48,6 +58,38 @@ abstract class DataPacket extends \stdClass{
 		static::$next = 0;
 	}
 
+	/**
+	 * @param Player $player
+	 *
+	 * @return DataPacketReceiveEvent
+	 */
+	public function getReceiveEvent(Player $player){
+		if($this->receiveEvent === null){
+			$this->receiveEvent = new DataPacketReceiveEvent($player, $this);
+		}else{
+			$this->receiveEvent->setCancelled(false);
+			$this->receiveEvent->__construct($player, $this);
+		}
+
+		return $this->receiveEvent;
+	}
+
+	/**
+	 * @param Player $player
+	 *
+	 * @return DataPacketSendEvent
+	 */
+	public function getSendEvent(Player $player){
+		if($this->sendEvent === null){
+			$this->sendEvent = new DataPacketSendEvent($player, $this);
+		}else{
+			$this->sendEvent->setCancelled(false);
+			$this->sendEvent->__construct($player, $this);
+		}
+
+		return $this->sendEvent;
+	}
+
 	private $offset = 0;
 	public $buffer = "";
 	public $isEncoded = false;
diff --git a/src/pocketmine/utils/Binary.php b/src/pocketmine/utils/Binary.php
index e18ba5f17..395dca2b0 100644
--- a/src/pocketmine/utils/Binary.php
+++ b/src/pocketmine/utils/Binary.php
@@ -74,7 +74,7 @@ class Binary{
 	 * @return string
 	 */
 	public static function writeLTriad($value){
-		return substr(pack("N", $value), 0, -1);
+		return substr(pack("V", $value), 0, -1);
 	}
 
 	/**