diff --git a/src/API/BlockAPI.php b/src/API/BlockAPI.php
index 95ab612d3..73368a469 100644
--- a/src/API/BlockAPI.php
+++ b/src/API/BlockAPI.php
@@ -419,6 +419,12 @@ class BlockAPI{
 			return $this->cancelAction($block, $player, false);
 		}
 		
+		if($target->isReplaceable === true){
+			$block = $target;
+			$hand->position($block);			
+			$face = -1;
+		}
+		
 		if($hand->isSolid === true and $player->entity->inBlock($block)){
 			return $this->cancelAction($block, $player, false); //Entity in block
 		}
diff --git a/src/config.php b/src/config.php
index 1dafcfa87..e4a2f94b3 100644
--- a/src/config.php
+++ b/src/config.php
@@ -60,7 +60,7 @@ ini_set("memory_limit", "128M"); //Default
 define("LOG", true);
 define("START_TIME", microtime(true));
 define("MAJOR_VERSION", "Alpha_1.3.11dev");
-define("CURRENT_MINECRAFT_VERSION", "v0.8.0 alpha build 3");
+define("CURRENT_MINECRAFT_VERSION", "v0.8.0 alpha build 4");
 define("CURRENT_API_VERSION", 11);
 define("CURRENT_PHP_VERSION", "5.5");
 $gitsha1 = false;
diff --git a/src/constants/ItemIDs.php b/src/constants/ItemIDs.php
index f0e81dbaf..8d3aff91e 100644
--- a/src/constants/ItemIDs.php
+++ b/src/constants/ItemIDs.php
@@ -100,6 +100,7 @@ define("BUCKET", 325);
 
 
 define("IRON_DOOR", 330);
+define("REDSTONE", 331);
 define("REDSTONE_DUST", 331);
 define("SNOWBALL", 332);
 
diff --git a/src/material/block/plant/Beetroot.php b/src/material/block/plant/Beetroot.php
index d133d8278..b1c517b06 100644
--- a/src/material/block/plant/Beetroot.php
+++ b/src/material/block/plant/Beetroot.php
@@ -21,7 +21,7 @@
 
 class BeetrootBlock extends FlowableBlock{
 	public function __construct($meta = 0){
-		parent::__construct(BETROOT_BLOCK, $meta, "Beetroot Block");
+		parent::__construct(BEETROOT_BLOCK, $meta, "Beetroot Block");
 		$this->isActivable = true;
 		$this->hardness = 0;
 	}
diff --git a/src/material/block/plant/DeadBush.php b/src/material/block/plant/DeadBush.php
index 643ad211a..d4736980d 100644
--- a/src/material/block/plant/DeadBush.php
+++ b/src/material/block/plant/DeadBush.php
@@ -22,7 +22,7 @@
 class DeadBushBlock extends FlowableBlock{
 	public function __construct(){
 		parent::__construct(DEAD_BUSH, 0, "Dead Bush");
-		$this->isReplaceable = true;
+		//$this->isReplaceable = true;
 		$this->hardness = 0;
 	}
 
diff --git a/src/material/block/plant/TallGrass.php b/src/material/block/plant/TallGrass.php
index afe385289..ec0068e50 100644
--- a/src/material/block/plant/TallGrass.php
+++ b/src/material/block/plant/TallGrass.php
@@ -22,7 +22,7 @@
 class TallGrassBlock extends FlowableBlock{
 	public function __construct($meta = 1){
 		parent::__construct(TALL_GRASS, $meta, "Tall Grass");
-		$this->isReplaceable = true;
+		//$this->isReplaceable = true;
 		$names = array(
 			0 => "Dead Shrub",
 			1 => "Tall Grass",
diff --git a/src/utils/pthreads.php b/src/utils/pthreads.php
index be91ec58a..134fd3f3a 100644
--- a/src/utils/pthreads.php
+++ b/src/utils/pthreads.php
@@ -22,8 +22,20 @@
 define("ASYNC_CURL_GET", 1);
 define("ASYNC_CURL_POST", 2);
 
-class StackableArray{
-	public $counter = 0;
+class StackableArray extends Stackable{
+	public function __construct(){
+		foreach(func_get_args() as $n => $value){
+			if(is_array($value)){
+				$this->{$n} = new StackableArray();
+				call_user_func_array(array($this->{$n}, "__construct"), $value);
+			}else{
+				$this->{$n} = $value;
+			}
+		}
+	}
+	
+	public function __destruct(){}
+	
 	public function run(){}
 }
 
diff --git a/src/world/Entity.php b/src/world/Entity.php
index bd6d91ad3..695eb1c31 100644
--- a/src/world/Entity.php
+++ b/src/world/Entity.php
@@ -315,6 +315,9 @@ class Entity extends Position{
 			}else{
 				$hasUpdate = true;
 			}
+			if(($this->player instanceof Player) and ($this->player->gamemode & 0x01) === CREATIVE){ //Remove fire effects in next tick
+				$this->fire = 1;
+			}
 		}
 		
 		$startX = (int) (round($this->x - 0.5) - 1);
@@ -424,7 +427,7 @@ class Entity extends Position{
 							$support = true;
 							$isFlying = false;
 							break;
-						}elseif(($b instanceof LiquidBlock) or $b->getID() === COBWEB or $b->getID() === LADDER or $b->getID() === FENCE){
+						}elseif(($b instanceof LiquidBlock) or $b->getID() === COBWEB or $b->getID() === LADDER or $b->getID() === FENCE or $b->getID() === STONE_WALL){
 							$isFlying = false;
 						}
 					}