fix a bunch of bugs

src/block/tile/ContainerTrait.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block\tile;
 
+use pocketmine\data\SavedDataLoadingException;
 use pocketmine\inventory\Inventory;
 use pocketmine\item\Item;
 use pocketmine\nbt\NBT;
@@ -49,7 +50,13 @@ trait ContainerTrait{
 			$newContents = [];
 			/** @var CompoundTag $itemNBT */
 			foreach($inventoryTag as $itemNBT){
-				$newContents[$itemNBT->getByte("Slot")] = Item::nbtDeserialize($itemNBT);
+				try{
+					$newContents[$itemNBT->getByte("Slot")] = Item::nbtDeserialize($itemNBT);
+				}catch(SavedDataLoadingException $e){
+					//TODO: not the best solution
+					\GlobalLogger::get()->logException($e);
+					continue;
+				}
 			}
 			$inventory->setContents($newContents);
 

src/data/bedrock/block/upgrade/BlockDataUpgrader.php

@@ -60,4 +60,6 @@ final class BlockDataUpgrader{
 
 		return $this->blockStateUpgrader->upgrade($blockStateData);
 	}
+
+	public function getBlockStateUpgrader() : BlockStateUpgrader{ return $this->blockStateUpgrader; }
 }

src/data/bedrock/item/upgrade/ItemDataUpgrader.php

@@ -70,6 +70,9 @@ final class ItemDataUpgrader{
 		ksort($this->idMetaUpgradeSchemas, SORT_NUMERIC);
 	}
 
+	/**
+	 * @throws SavedDataLoadingException
+	 */
 	private function upgradeItemTypeNbt(CompoundTag $tag) : SavedItemData{
 		if(($nameIdTag = $tag->getTag(SavedItemData::TAG_NAME)) instanceof StringTag){
 			//Bedrock 1.6+
@@ -98,6 +101,11 @@ final class ItemDataUpgrader{
 		}elseif(($r12BlockId = $this->r12ItemIdToBlockIdMap->itemIdToBlockId($rawNameId)) !== null){
 			//this is a legacy blockitem represented by ID + meta
 			$blockStateData = $this->blockDataUpgrader->upgradeStringIdMeta($r12BlockId, $meta);
+			if($blockStateData === null){
+				throw new SavedDataLoadingException("Expected a blockstate to be associated with this block");
+			}
+			//the block data upgrader returns states from 1.18.10, which need to be updated to the current version the usual way
+			$blockStateData = $this->blockDataUpgrader->getBlockStateUpgrader()->upgrade($blockStateData);
 		}else{
 			//probably a standard item
 			$blockStateData = null;
@@ -112,6 +120,7 @@ final class ItemDataUpgrader{
 
 	/**
 	 * @return string[]
+	 * @throws SavedDataLoadingException
 	 */
 	private static function deserializeListOfStrings(?ListTag $list, string $tagName) : array{
 		if($list === null){
@@ -129,6 +138,9 @@ final class ItemDataUpgrader{
 		return $result;
 	}
 
+	/**
+	 * @throws SavedDataLoadingException
+	 */
 	public function upgradeItemStackNbt(CompoundTag $tag) : SavedItemStackData{
 		$savedItemData = $this->upgradeItemTypeNbt($tag);
 		try{
@@ -169,6 +181,6 @@ final class ItemDataUpgrader{
 			}
 		}
 
-		return [$id, $meta];
+		return [$newId, $newMeta];
 	}
 }

src/data/bedrock/item/upgrade/ItemIdMetaUpgradeSchema.php

@@ -40,10 +40,10 @@ final class ItemIdMetaUpgradeSchema{
 	public function getPriority() : int{ return $this->priority; }
 
 	public function renameId(string $id) : ?string{
-		return $this->renamedIds[$id] ?? null;
+		return $this->renamedIds[mb_strtolower($id, 'US-ASCII')] ?? null;
 	}
 
 	public function remapMeta(string $id, int $meta) : ?string{
-		return $this->remappedMetas[$id][$meta] ?? null;
+		return $this->remappedMetas[mb_strtolower($id, 'US-ASCII')][$meta] ?? null;
 	}
 }

src/data/bedrock/item/upgrade/R12ItemIdToBlockIdMap.php

@@ -68,20 +68,34 @@ final class R12ItemIdToBlockIdMap{
 		return new self($builtMap);
 	}
 
+	/**
+	 * @var string[]
+	 * @phpstan-var array<string, string>
+	 */
+	private array $itemToBlock = [];
+	/**
+	 * @var string[]
+	 * @phpstan-var array<string, string>
+	 */
+	private array $blockToItem = [];
+
 	/**
 	 * @param string[] $itemToBlock
 	 * @phpstan-param array<string, string> $itemToBlock
 	 */
-	public function __construct(private array $itemToBlock){}
+	public function __construct(array $itemToBlock){
+		foreach($itemToBlock as $itemId => $blockId){
+			$this->itemToBlock[mb_strtolower($itemId, 'US-ASCII')] = $blockId;
+			$this->blockToItem[mb_strtolower($blockId, 'US-ASCII')] = $itemId;
+		}
+	}
 
 	public function itemIdToBlockId(string $itemId) : ?string{
-		return $this->itemToBlock[$itemId] ?? null;
+		return $this->itemToBlock[mb_strtolower($itemId, 'US-ASCII')] ?? null;
 	}
 
 	public function blockIdToItemId(string $blockId) : ?string{
-		//we don't need this for any functionality, so we're not concerned about performance here
-		//however, it might be nice to have for debugging
-		$itemId = array_search($blockId, $this->itemToBlock, true);
-		return $itemId !== false ? $itemId : null;
+		//we don't need this for any functionality, but it might be nice to have for debugging
+		return $this->blockToItem[mb_strtolower($blockId, 'US-ASCII')] ?? null;
 	}
 }

src/item/Item.php

@@ -31,6 +31,7 @@ use pocketmine\block\BlockBreakInfo;
 use pocketmine\block\BlockToolType;
 use pocketmine\block\VanillaBlocks;
 use pocketmine\data\bedrock\EnchantmentIdMap;
+use pocketmine\data\bedrock\item\ItemTypeDeserializeException;
 use pocketmine\data\bedrock\item\SavedItemStackData;
 use pocketmine\data\SavedDataLoadingException;
 use pocketmine\entity\Entity;
@@ -661,13 +662,16 @@ class Item implements \JsonSerializable{
 
 	/**
 	 * Deserializes an Item from an NBT CompoundTag
-	 * @throws NbtException
 	 * @throws SavedDataLoadingException
 	 */
 	public static function nbtDeserialize(CompoundTag $tag) : Item{
 		$itemData = GlobalItemDataHandlers::getUpgrader()->upgradeItemStackNbt($tag);
 
-		$item = GlobalItemDataHandlers::getDeserializer()->deserialize($itemData->getTypeData());
+		try{
+			$item = GlobalItemDataHandlers::getDeserializer()->deserialize($itemData->getTypeData());
+		}catch(ItemTypeDeserializeException $e){
+			throw new SavedDataLoadingException($e->getMessage(), 0, $e);
+		}
 
 		$item->setCount($itemData->getCount());
 		if(($tagTag = $itemData->getTypeData()->getTag()) !== null){