diff --git a/src/world/SimpleChunkManager.php b/src/world/SimpleChunkManager.php
index 7911158b0..17325ad0f 100644
--- a/src/world/SimpleChunkManager.php
+++ b/src/world/SimpleChunkManager.php
@@ -28,8 +28,6 @@ use pocketmine\block\BlockFactory;
 use pocketmine\block\VanillaBlocks;
 use pocketmine\utils\Limits;
 use pocketmine\world\format\Chunk;
-use pocketmine\world\utils\SubChunkExplorer;
-use pocketmine\world\utils\SubChunkExplorerStatus;
 
 class SimpleChunkManager implements ChunkManager{
 
@@ -39,28 +37,23 @@ class SimpleChunkManager implements ChunkManager{
 	/** @var int */
 	protected $worldHeight;
 
-	/** @var SubChunkExplorer */
-	protected $terrainPointer;
-
 	/**
 	 * SimpleChunkManager constructor.
 	 */
 	public function __construct(int $worldHeight = World::Y_MAX){
 		$this->worldHeight = $worldHeight;
-		$this->terrainPointer = new SubChunkExplorer($this);
 	}
 
 	public function getBlockAt(int $x, int $y, int $z) : Block{
-		if($this->terrainPointer->moveTo($x, $y, $z) !== SubChunkExplorerStatus::INVALID){
-			return BlockFactory::getInstance()->fromFullBlock($this->terrainPointer->currentSubChunk->getFullBlock($x & 0xf, $y & 0xf, $z & 0xf));
+		if(($chunk = $this->getChunk($x >> 4, $z >> 4)) !== null){
+			return BlockFactory::getInstance()->fromFullBlock($chunk->getFullBlock($x & 0xf, $y, $z));
 		}
 		return VanillaBlocks::AIR();
 	}
 
 	public function setBlockAt(int $x, int $y, int $z, Block $block) : void{
-		if($this->terrainPointer->moveTo($x, $y, $z) !== SubChunkExplorerStatus::INVALID){
-			$this->terrainPointer->currentSubChunk->setFullBlock($x & 0xf, $y & 0xf, $z & 0xf, $block->getFullId());
-			$this->terrainPointer->currentChunk->setDirtyFlag(Chunk::DIRTY_FLAG_TERRAIN, true);
+		if(($chunk = $this->getChunk($x >> 4, $z >> 4)) !== null){
+			$chunk->setFullBlock($x & 0xf, $y, $z & 0xf, $block->getFullId());
 		}else{
 			throw new \InvalidArgumentException("Cannot set block at coordinates x=$x,y=$y,z=$z, terrain is not loaded or out of bounds");
 		}