diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index fa0b848e0..d2148fc37 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -776,10 +776,8 @@ class Player extends Human implements CommandSender, InventoryHolder, IPlayer{
 	public function sleepOn(Vector3 $pos){
 		foreach($this->level->getNearbyEntities($this->boundingBox->grow(2, 1, 2), $this) as $p){
 			if($p instanceof Player){
-				if($p->sleeping !== null){
-					if($pos->distance($p->sleeping) <= 0.1){
-						return false;
-					}
+				if($p->sleeping !== null and $pos->distance($p->sleeping) <= 0.1){
+					return false;
 				}
 			}
 		}
@@ -790,7 +788,7 @@ class Player extends Human implements CommandSender, InventoryHolder, IPlayer{
 		}
 
 		$this->sleeping = clone $pos;
-		$this->teleport(new Position($pos->x + 0.5, $pos->y + 1, $pos->z + 0.5, $this->level));
+		//$this->teleport(new Position($pos->x + 0.5, $pos->y + 1, $pos->z + 0.5, $this->level));
 
 		$this->setDataProperty(self::DATA_PLAYER_BED_POSITION, self::DATA_TYPE_POS, [$pos->x, $pos->y, $pos->z]);
 		$this->setDataFlag(self::DATA_PLAYER_FLAGS, self::DATA_PLAYER_FLAG_SLEEP, true);
@@ -856,8 +854,6 @@ class Player extends Human implements CommandSender, InventoryHolder, IPlayer{
 				}
 			}
 		}
-
-		return;
 	}
 
 	/**
@@ -1024,7 +1020,7 @@ class Player extends Human implements CommandSender, InventoryHolder, IPlayer{
 
 	protected function getCreativeBlock(Item $item){
 		foreach(Block::$creative as $i => $d){
-			if($d[0] === $item->getId() and $d[1] === $item->getDamage()){
+			if($d[0] === $item->getId() and ($item->isTool() or $d[1] === $item->getDamage())){
 				return $i;
 			}
 		}
@@ -1772,11 +1768,9 @@ class Player extends Human implements CommandSender, InventoryHolder, IPlayer{
 					case 5: //Shot arrow
 						if($this->startAction > -1 and $this->getDataFlag(self::DATA_FLAGS, self::DATA_FLAG_ACTION) and $this->inventory->getItemInHand()->getId() === Item::BOW){
 							$bow = $this->inventory->getItemInHand();
-							if($this->isSurvival()){
-								if(!$this->inventory->contains(Item::get(Item::ARROW, 0, 1))){
-									$this->inventory->sendContents($this);
-									break;
-								}
+							if($this->isSurvival() and !$this->inventory->contains(Item::get(Item::ARROW, 0, 1))){
+								$this->inventory->sendContents($this);
+								break;
 							}
 
 
@@ -1798,22 +1792,19 @@ class Player extends Human implements CommandSender, InventoryHolder, IPlayer{
 							]);
 
 							$diff = ($this->server->getTick() - $this->startAction);
-							if($diff < 5){
-								$this->inventory->sendContents($this);
-								break;
-							}
 							$p = $diff / 20;
 							$f = min((($p ** 2) + $p * 2) / 3, 1) * 2;
-							if($f < 0.1){
-								$this->inventory->sendContents($this);
-								break;
-							}
 							$ev = new EntityShootBowEvent($this, $bow, Entity::createEntity("Arrow", $this->chunk, $nbt, $this, $f == 2 ? true : false), $f);
 
+							if($f < 0.1 or $diff < 5){
+								$ev->setCancelled();
+							}
+
 							$this->server->getPluginManager()->callEvent($ev);
 
 							if($ev->isCancelled()){
 								$ev->getProjectile()->kill();
+								$this->inventory->sendContents($this);
 							}else{
 								$ev->getProjectile()->setMotion($ev->getProjectile()->getMotion()->multiply($ev->getForce()));
 								if($this->isSurvival()){
diff --git a/src/pocketmine/entity/Entity.php b/src/pocketmine/entity/Entity.php
index 54c7734c2..fc55a8ea2 100644
--- a/src/pocketmine/entity/Entity.php
+++ b/src/pocketmine/entity/Entity.php
@@ -534,7 +534,6 @@ abstract class Entity extends Location implements Metadatable{
 
         $this->setLastDamageCause($source);
 
-
         $this->setHealth($this->getHealth() - $source->getFinalDamage());
     }
 
@@ -615,29 +614,25 @@ abstract class Entity extends Location implements Metadatable{
 	}
 
 	protected function checkObstruction($x, $y, $z){
-		$i = (int) $x;
-		$j = (int) $y;
-		$k = (int) $z;
+		$i = Math::floorFloat($x);
+		$j = Math::floorFloat($y);
+		$k = Math::floorFloat($z);
 
 		$diffX = $x - $i;
 		$diffY = $y - $j;
 		$diffZ = $z - $k;
 
-		$list = $this->level->getCollisionBlocks($this->boundingBox);
-
 		$v = new Vector3($i, $j, $k);
 
-		if(count($list) === 0 and !$this->level->isFullBlock($v->setComponents($i, $j, $k))){
-			return false;
-		}else{
+		if($this->level->isFullBlock($v)){
 			$flag = !$this->level->isFullBlock($v->setComponents($i - 1, $j, $k));
 			$flag1 = !$this->level->isFullBlock($v->setComponents($i + 1, $j, $k));
-			//$flag2 = !$this->level->isFullBlock($v->setComponents($i, $j - 1, $k));
+			$flag2 = !$this->level->isFullBlock($v->setComponents($i, $j - 1, $k));
 			$flag3 = !$this->level->isFullBlock($v->setComponents($i, $j + 1, $k));
 			$flag4 = !$this->level->isFullBlock($v->setComponents($i, $j, $k - 1));
 			$flag5 = !$this->level->isFullBlock($v->setComponents($i, $j, $k + 1));
 
-			$direction = 3; //UP!
+			$direction = -1;
 			$limit = 9999;
 
 			if($flag){
@@ -650,6 +645,11 @@ abstract class Entity extends Location implements Metadatable{
 				$direction = 1;
 			}
 
+			if($flag2 and $diffY < $limit){
+				$limit = $diffY;
+				$direction = 2;
+			}
+
 			if($flag3 and 1 - $diffY < $limit){
 				$limit = 1 - $diffY;
 				$direction = 3;
@@ -678,7 +678,11 @@ abstract class Entity extends Location implements Metadatable{
 				return true;
 			}
 
-			//No direction 2
+			if($direction === 2){
+				$this->motionY = -$force;
+
+				return true;
+			}
 
 			if($direction === 3){
 				$this->motionY = $force;
@@ -699,6 +703,8 @@ abstract class Entity extends Location implements Metadatable{
 			return true;
 
 		}
+
+		return false;
 	}
 
 	public function entityBaseTick($tickDiff = 1){
@@ -728,10 +734,6 @@ abstract class Entity extends Location implements Metadatable{
 				$effect->setDuration($effect->getDuration() - $tickDiff);
 				if($effect->getDuration() <= 0){
 					$this->removeEffect($effect->getId());
-					$this->sendMetadata($this->hasSpawned);
-					if($this instanceof Player){
-						$this->sendMetadata($this);
-					}
 				}
 			}
 		}
@@ -1106,8 +1108,7 @@ abstract class Entity extends Location implements Metadatable{
 				//TODO: big messy loop
 			}*/
 
-			$list = $this->level->getCollisionCubes($this, $this->boundingBox->getOffsetBoundingBox($dx, $dy, $dz), false);
-
+			$list = $this->level->getCollisionCubes($this, $this->boundingBox->addCoord($dx, $dy, $dz), false);
 
 			foreach($list as $bb){
 				$dy = $bb->calculateYOffset($this->boundingBox, $dy);
@@ -1160,7 +1161,7 @@ abstract class Entity extends Location implements Metadatable{
 
 				$this->boundingBox->setBB($axisalignedbb);
 
-				$list = $this->level->getCollisionCubes($this, $this->boundingBox->getOffsetBoundingBox($dx, $dy, $dz), false);
+				$list = $this->level->getCollisionCubes($this, $this->boundingBox->addCoord($dx, $dy, $dz), false);
 
 				foreach($list as $bb){
 					$dy = $bb->calculateYOffset($this->boundingBox, $dy);
diff --git a/src/pocketmine/entity/FallingSand.php b/src/pocketmine/entity/FallingSand.php
index 09af1e1ef..74887267e 100644
--- a/src/pocketmine/entity/FallingSand.php
+++ b/src/pocketmine/entity/FallingSand.php
@@ -71,6 +71,10 @@ class FallingSand extends Entity{
 		return false;
 	}
 
+	public function attack($damage, EntityDamageEvent $source){
+
+	}
+
 	public function onUpdate($currentTick){
 
 		if($this->closed){
diff --git a/src/pocketmine/entity/Item.php b/src/pocketmine/entity/Item.php
index b311951b8..c7d9bc149 100644
--- a/src/pocketmine/entity/Item.php
+++ b/src/pocketmine/entity/Item.php
@@ -74,6 +74,13 @@ class Item extends Entity{
 		$this->server->getPluginManager()->callEvent(new ItemSpawnEvent($this));
 	}
 
+
+	public function attack($damage, EntityDamageEvent $source){
+		if($source->getCause() === EntityDamageEvent::CAUSE_FIRE_TICK){
+			parent::attack($damage, $source);
+		}
+	}
+
 	public function onUpdate($currentTick){
 		if($this->closed !== false){
 			return false;
@@ -94,7 +101,7 @@ class Item extends Entity{
 
 			$this->motionY -= $this->gravity;
 
-			$this->keepMovement = $this->checkObstruction($this->x, ($this->boundingBox->minY + $this->boundingBox->maxY) / 2, $this->z);
+			$this->checkObstruction($this->x, ($this->boundingBox->minY + $this->boundingBox->maxY) / 2, $this->z);
 			$this->move($this->motionX, $this->motionY, $this->motionZ);
 
 			$friction = 1 - $this->drag;
diff --git a/src/pocketmine/entity/PrimedTNT.php b/src/pocketmine/entity/PrimedTNT.php
index 5087e4c64..c23774303 100644
--- a/src/pocketmine/entity/PrimedTNT.php
+++ b/src/pocketmine/entity/PrimedTNT.php
@@ -44,6 +44,11 @@ class PrimedTNT extends Entity implements Explosive{
 
 	public $canCollide = false;
 
+
+	public function attack($damage, EntityDamageEvent $source){
+
+	}
+
 	protected function initEntity(){
 		parent::initEntity();
 
@@ -102,8 +107,6 @@ class PrimedTNT extends Entity implements Explosive{
 			if($this->fuse <= 0){
 				$this->kill();
 				$this->explode();
-			}else{
-				$this->sendMetadata($this->getViewers());
 			}
 
 		}
diff --git a/src/pocketmine/entity/Projectile.php b/src/pocketmine/entity/Projectile.php
index b6418c20f..583ca67ab 100644
--- a/src/pocketmine/entity/Projectile.php
+++ b/src/pocketmine/entity/Projectile.php
@@ -39,6 +39,11 @@ abstract class Projectile extends Entity{
 
 	public $hadCollision = false;
 
+
+	public function attack($damage, EntityDamageEvent $source){
+
+	}
+
 	protected function initEntity(){
 		parent::initEntity();
 
diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index 3cc6fdde4..0efb2a7ad 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -824,17 +824,17 @@ class Level implements ChunkManager, Metadatable{
 		$minX = Math::floorFloat($bb->minX);
 		$minY = Math::floorFloat($bb->minY);
 		$minZ = Math::floorFloat($bb->minZ);
-		$maxX = Math::floorFloat($bb->maxX + 1);
-		$maxY = Math::floorFloat($bb->maxY + 1);
-		$maxZ = Math::floorFloat($bb->maxZ + 1);
+		$maxX = Math::ceilFloat($bb->maxX);
+		$maxY = Math::ceilFloat($bb->maxY);
+		$maxZ = Math::ceilFloat($bb->maxZ);
 
 		$collides = [];
 
 		$v = $this->temporalVector;
 
-		for($v->z = $minZ; $v->z < $maxZ; ++$v->z){
-			for($v->x = $minX; $v->x < $maxX; ++$v->x){
-				for($v->y = $minY - 1; $v->y < $maxY; ++$v->y){
+		for($v->z = $minZ; $v->z <= $maxZ; ++$v->z){
+			for($v->x = $minX; $v->x <= $maxX; ++$v->x){
+				for($v->y = $minY - 1; $v->y <= $maxY; ++$v->y){
 					$block = $this->getBlock($v);
 					if($block->getId() !== 0){
 						$block->collidesWithBB($bb, $collides);
@@ -872,15 +872,15 @@ class Level implements ChunkManager, Metadatable{
 		$minX = Math::floorFloat($bb->minX);
 		$minY = Math::floorFloat($bb->minY);
 		$minZ = Math::floorFloat($bb->minZ);
-		$maxX = Math::floorFloat($bb->maxX + 1);
-		$maxY = Math::floorFloat($bb->maxY + 1);
-		$maxZ = Math::floorFloat($bb->maxZ + 1);
+		$maxX = Math::ceilFloat($bb->maxX);
+		$maxY = Math::ceilFloat($bb->maxY);
+		$maxZ = Math::ceilFloat($bb->maxZ);
 
 		$collides = [];
 		$v = $this->temporalVector;
 
-		for($v->z = $minZ; $v->z < $maxZ; ++$v->z){
-			for($v->x = $minX; $v->x < $maxX; ++$v->x){
+		for($v->z = $minZ; $v->z <= $maxZ; ++$v->z){
+			for($v->x = $minX; $v->x <= $maxX; ++$v->x){
 				for($v->y = $minY - 1; $v->y < $maxY; ++$v->y){
 					$block = $this->getBlock($v);
 					if($block->getId() !== 0){
@@ -1492,9 +1492,9 @@ class Level implements ChunkManager, Metadatable{
 		$nearby = [];
 
 		if($entity === null or $entity->canCollide){
-			$minX = Math::ceilFloat(($bb->minX - 2) / 16);
+			$minX = Math::floorFloat(($bb->minX - 2) / 16);
 			$maxX = Math::ceilFloat(($bb->maxX + 2) / 16);
-			$minZ = Math::ceilFloat(($bb->minZ - 2) / 16);
+			$minZ = Math::floorFloat(($bb->minZ - 2) / 16);
 			$maxZ = Math::ceilFloat(($bb->maxZ + 2) / 16);
 
 			for($x = $minX; $x <= $maxX; ++$x){
@@ -1522,9 +1522,9 @@ class Level implements ChunkManager, Metadatable{
 	public function getNearbyEntities(AxisAlignedBB $bb, Entity $entity = null){
 		$nearby = [];
 
-		$minX = Math::ceilFloat(($bb->minX - 2) / 16);
+		$minX = Math::floorFloat(($bb->minX - 2) / 16);
 		$maxX = Math::ceilFloat(($bb->maxX + 2) / 16);
-		$minZ = Math::ceilFloat(($bb->minZ - 2) / 16);
+		$minZ = Math::floorFloat(($bb->minZ - 2) / 16);
 		$maxZ = Math::ceilFloat(($bb->maxZ + 2) / 16);
 
 		for($x = $minX; $x <= $maxX; ++$x){