添加api方法

core/src/main/java/net/momirealms/craftengine/core/block/AbstractBlockManager.java

@@ -86,7 +86,7 @@ public abstract class AbstractBlockManager extends AbstractModelGenerator implem
     }
 
     @Override
-    public Map<Key, CustomBlock> blocks() {
+    public Map<Key, CustomBlock> loadedBlocks() {
         return Collections.unmodifiableMap(this.byId);
     }
 

core/src/main/java/net/momirealms/craftengine/core/block/BlockManager.java

@@ -24,7 +24,12 @@ public interface BlockManager extends Manageable, ModelGenerator {
 
     Map<Key, JsonElement> modBlockStates();
 
-    Map<Key, CustomBlock> blocks();
+    Map<Key, CustomBlock> loadedBlocks();
+
+    @Deprecated(forRemoval = true)
+    default Map<Key, CustomBlock> blocks() {
+        return loadedBlocks();
+    }
 
     Optional<CustomBlock> blockById(Key key);
 

core/src/main/java/net/momirealms/craftengine/core/entity/furniture/AbstractFurnitureManager.java

@@ -58,6 +58,11 @@ public abstract class AbstractFurnitureManager implements FurnitureManager {
         return Optional.ofNullable(this.byId.get(id));
     }
 
+    @Override
+    public Map<Key, CustomFurniture> loadedFurniture() {
+        return Collections.unmodifiableMap(this.byId);
+    }
+
     @Override
     public void unload() {
         this.byId.clear();

core/src/main/java/net/momirealms/craftengine/core/entity/furniture/FurnitureManager.java

@@ -9,6 +9,7 @@ import org.incendo.cloud.suggestion.Suggestion;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.Collection;
+import java.util.Map;
 import java.util.Optional;
 
 public interface FurnitureManager extends Manageable {
@@ -30,6 +31,8 @@ public interface FurnitureManager extends Manageable {
 
     Optional<CustomFurniture> furnitureById(Key id);
 
+    Map<Key, CustomFurniture> loadedFurniture();
+
     boolean isFurnitureRealEntity(int entityId);
 
     @Nullable

core/src/main/java/net/momirealms/craftengine/core/item/AbstractItemManager.java

@@ -229,8 +229,8 @@ public abstract class AbstractItemManager<I> extends AbstractModelGenerator impl
     }
 
     @Override
-    public Collection<Key> items() {
-        return Collections.unmodifiableCollection(this.customItemsById.keySet());
+    public Map<Key, CustomItem<I>> loadedItems() {
+        return Collections.unmodifiableMap(this.customItemsById);
     }
 
     @Override

core/src/main/java/net/momirealms/craftengine/core/item/CustomItem.java

@@ -16,6 +16,10 @@ import java.util.Optional;
 
 public interface CustomItem<I> extends BuildableItem<I> {
 
+    /**
+     * Since CraftEngine allows users to add certain functionalities to vanilla items, this custom item might actually be a vanilla item.
+     * This will be refactored before the 1.0 release, but no changes will be made for now to ensure compatibility.
+     */
     boolean isVanillaItem();
 
     Key id();

core/src/main/java/net/momirealms/craftengine/core/item/ItemManager.java

@@ -54,7 +54,12 @@ public interface ItemManager<T> extends Manageable, ModelGenerator {
 
     Item<T> fromByteArray(byte[] bytes);
 
-    Collection<Key> items();
+    Map<Key, CustomItem<T>> loadedItems();
+
+    @Deprecated(forRemoval = true)
+    default Collection<Key> items() {
+        return loadedItems().keySet();
+    }
 
     ExternalItemSource<T> getExternalItemSource(String name);
 

core/src/main/java/net/momirealms/craftengine/core/world/CEWorld.java

@@ -1,6 +1,5 @@
 package net.momirealms.craftengine.core.world;
 
-import ca.spottedleaf.concurrentutil.collection.MultiThreadedQueue;
 import ca.spottedleaf.concurrentutil.map.ConcurrentLong2ReferenceChainedHashTable;
 import it.unimi.dsi.fastutil.objects.ReferenceOpenHashSet;
 import net.momirealms.craftengine.core.block.ImmutableBlockState;