Block: fixed use of full meta as variant in several cases

fixes #2940

now I need to go to the bathroom and wash this off my hands ... I'd forgotten how nasty this code is

src/pocketmine/block/Carpet.php

@@ -46,7 +46,7 @@ class Carpet extends Flowable{
 	}
 
 	public function getName() : string{
-		return ColorBlockMetaHelper::getColorFromMeta($this->meta) . " Carpet";
+		return ColorBlockMetaHelper::getColorFromMeta($this->getVariant()) . " Carpet";
 	}
 
 	protected function recalculateBoundingBox() : ?AxisAlignedBB{

src/pocketmine/block/Concrete.php

@@ -35,7 +35,7 @@ class Concrete extends Solid{
 	}
 
 	public function getName() : string{
-		return ColorBlockMetaHelper::getColorFromMeta($this->meta) . " Concrete";
+		return ColorBlockMetaHelper::getColorFromMeta($this->getVariant()) . " Concrete";
 	}
 
 	public function getHardness() : float{

src/pocketmine/block/ConcretePowder.php

@@ -34,7 +34,7 @@ class ConcretePowder extends Fallable{
 	}
 
 	public function getName() : string{
-		return ColorBlockMetaHelper::getColorFromMeta($this->meta) . " Concrete Powder";
+		return ColorBlockMetaHelper::getColorFromMeta($this->getVariant()) . " Concrete Powder";
 	}
 
 	public function getHardness() : float{

src/pocketmine/block/DoublePlant.php

@@ -39,7 +39,7 @@ class DoublePlant extends Flowable{
 	}
 
 	public function canBeReplaced() : bool{
-		return $this->meta === 2 or $this->meta === 3; //grass or fern
+		return $this->getVariant() === 2 or $this->getVariant() === 3; //grass or fern
 	}
 
 	public function getName() : string{
@@ -95,11 +95,11 @@ class DoublePlant extends Flowable{
 	}
 
 	public function getToolType() : int{
-		return ($this->meta === 2 or $this->meta === 3) ? BlockToolType::TYPE_SHEARS : BlockToolType::TYPE_NONE;
+		return ($this->getVariant() === 2 or $this->getVariant() === 3) ? BlockToolType::TYPE_SHEARS : BlockToolType::TYPE_NONE;
 	}
 
 	public function getToolHarvestLevel() : int{
-		return ($this->meta === 2 or $this->meta === 3) ? 1 : 0; //only grass or fern require shears
+		return ($this->getVariant() === 2 or $this->getVariant() === 3) ? 1 : 0; //only grass or fern require shears
 	}
 
 	public function getDrops(Item $item) : array{

src/pocketmine/block/Flower.php

@@ -56,7 +56,7 @@ class Flower extends Flowable{
 			self::TYPE_PINK_TULIP => "Pink Tulip",
 			self::TYPE_OXEYE_DAISY => "Oxeye Daisy"
 		];
-		return $names[$this->meta] ?? "Unknown";
+		return $names[$this->getVariant()] ?? "Unknown";
 	}
 
 	public function place(Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, Player $player = null) : bool{

src/pocketmine/block/Leaves.php

@@ -188,7 +188,7 @@ class Leaves extends Transparent{
 	}
 
 	public function canDropApples() : bool{
-		return $this->meta === self::OAK;
+		return $this->getVariant() === self::OAK;
 	}
 
 	public function getFlameEncouragement() : int{

src/pocketmine/block/Leaves2.php

@@ -44,6 +44,6 @@ class Leaves2 extends Leaves{
 	}
 
 	public function canDropApples() : bool{
-		return $this->meta === self::DARK_OAK;
+		return $this->getVariant() === self::DARK_OAK;
 	}
 }

src/pocketmine/block/Quartz.php

@@ -55,7 +55,7 @@ class Quartz extends Solid{
 	}
 
 	public function place(Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, Player $player = null) : bool{
-		if($this->meta !== self::NORMAL){
+		if($this->getVariant() !== self::NORMAL){
 			$this->meta = PillarRotationHelper::getMetaFromFace($this->meta, $face);
 		}
 		return $this->getLevel()->setBlock($blockReplace, $this, true, true);

src/pocketmine/block/Sand.php

@@ -40,7 +40,7 @@ class Sand extends Fallable{
 	}
 
 	public function getName() : string{
-		if($this->meta === 0x01){
+		if($this->getVariant() === 0x01){
 			return "Red Sand";
 		}
 

src/pocketmine/block/Slab.php

@@ -78,7 +78,7 @@ abstract class Slab extends Transparent{
 			}
 		}else{ //TODO: collision
 			if($blockReplace->getId() === $this->id){
-				if($blockReplace->getVariant() === $this->meta){
+				if($blockReplace->getVariant() === $this->getVariant()){
 					$this->getLevel()->setBlock($blockReplace, BlockFactory::get($this->getDoubleSlabId(), $this->getVariant()), true);
 
 					return true;

src/pocketmine/block/StainedClay.php

@@ -30,6 +30,6 @@ class StainedClay extends HardenedClay{
 	protected $id = self::STAINED_CLAY;
 
 	public function getName() : string{
-		return ColorBlockMetaHelper::getColorFromMeta($this->meta) . " Stained Clay";
+		return ColorBlockMetaHelper::getColorFromMeta($this->getVariant()) . " Stained Clay";
 	}
 }

src/pocketmine/block/StainedGlass.php

@@ -30,6 +30,6 @@ class StainedGlass extends Glass{
 	protected $id = self::STAINED_GLASS;
 
 	public function getName() : string{
-		return ColorBlockMetaHelper::getColorFromMeta($this->meta) . " Stained Glass";
+		return ColorBlockMetaHelper::getColorFromMeta($this->getVariant()) . " Stained Glass";
 	}
 }

src/pocketmine/block/StainedGlassPane.php

@@ -30,6 +30,6 @@ class StainedGlassPane extends GlassPane{
 	protected $id = self::STAINED_GLASS_PANE;
 
 	public function getName() : string{
-		return ColorBlockMetaHelper::getColorFromMeta($this->meta) . " Stained Glass Pane";
+		return ColorBlockMetaHelper::getColorFromMeta($this->getVariant()) . " Stained Glass Pane";
 	}
 }

src/pocketmine/block/Wool.php

@@ -43,7 +43,7 @@ class Wool extends Solid{
 	}
 
 	public function getName() : string{
-		return ColorBlockMetaHelper::getColorFromMeta($this->meta) . " Wool";
+		return ColorBlockMetaHelper::getColorFromMeta($this->getVariant()) . " Wool";
 	}
 
 	public function getBreakTime(Item $item) : float{