Adds to the Tag a parent tag reference.

lib/nbt/Tag.dart

@@ -155,6 +155,19 @@ abstract class Tag {
 
   TagType getTagType();
   TagType _parentTagType = TagType.End;
+  Tag? _parentTag;
+  bool get hasParent => _parentTag != null;
+  void updateParent(Tag? tag) {
+    if (tag == null) {
+      _parentTag = null;
+      setParentTagType(TagType.End);
+    } else {
+      _parentTag = tag;
+      setParentTagType(tag.getTagType());
+    }
+  }
+
+  Tag? get getParent => _parentTag;
 
   TagType get parentTagType => _parentTagType;
   void setParentTagType(TagType type) {

lib/nbt/impl/CompoundTag.dart

@@ -47,7 +47,7 @@ class CompoundTag extends Tag implements Map<String, Tag> {
   void put(String name, Tag tag) {
     value[name] = tag;
     tag.setKey(name);
-    tag.setParentTagType(TagType.Compound);
+    tag.updateParent(this);
   }
 
   Tag? get(String name) {
@@ -114,19 +114,23 @@ class CompoundTag extends Tag implements Map<String, Tag> {
   @override
   void operator []=(String key, Tag value) {
     this.value[key] = value;
-    value.setParentTagType(TagType.Compound);
+    value.updateParent(this);
   }
 
   @override
   void addAll(Map<String, Tag> other) {
     value.addAll(other);
-    updateParent();
+    for (var entries in other.entries) {
+      entries.value.updateParent(this);
+    }
   }
 
   @override
   void addEntries(Iterable<MapEntry<String, Tag>> newEntries) {
     value.addEntries(newEntries);
-    updateParent();
+    for (var entries in newEntries) {
+      entries.value.updateParent(this);
+    }
   }
 
   @override
@@ -140,15 +144,10 @@ class CompoundTag extends Tag implements Map<String, Tag> {
     value.clear();
   }
 
-  void updateParent() {
-    for (MapEntry<String, Tag> Entries in value.entries) {
-      Entries.value.setParentTagType(TagType.Compound);
-    }
-  }
-
   void unsetParent() {
     for (MapEntry<String, Tag> Entries in value.entries) {
       Entries.value.setParentTagType(TagType.End);
+      Entries.value.updateParent(null);
     }
   }
 
@@ -191,28 +190,30 @@ class CompoundTag extends Tag implements Map<String, Tag> {
   @override
   Tag putIfAbsent(String key, Tag Function() ifAbsent) {
     Tag X = this.value.putIfAbsent(key, ifAbsent);
-    updateParent();
+    X.updateParent(this);
     return X;
   }
 
   @override
   Tag? remove(Object? key) {
-    if (key is Tag && value.containsKey(key))
-      (key).setParentTagType(TagType.End);
+    if (key is Tag && value.containsKey(key)) (key).updateParent(null);
     return value.remove(key);
   }
 
+  /// DO NOT USE, Parent will not be updated on child tags when this function is used.
   @override
   void removeWhere(bool Function(String key, Tag value) test) {
     value.removeWhere(test);
   }
 
+  /// DO NOT USE
   @override
   Tag update(String key, Tag Function(Tag value) update,
       {Tag Function()? ifAbsent}) {
     return value.update(key, update);
   }
 
+  /// DO NOT USE
   @override
   void updateAll(Tag Function(String key, Tag value) update) {
     value.updateAll(update);

lib/nbt/impl/ListTag.dart

@@ -7,6 +7,9 @@ class ListTag extends Tag {
 
   ListTag();
 
+  TagType get getListTagType =>
+      value.length == 0 ? TagType.End : value[0].getTagType();
+
   @override
   void readValue(ByteLayer data) {
     TagType type = TagType.get(data.readByte());
@@ -40,7 +43,7 @@ class ListTag extends Tag {
     }
     if (type == TagType.End || type == tag.getTagType()) {
       value.add(tag);
-      tag.setParentTagType(TagType.List);
+      tag.updateParent(this);
     }
   }
 
@@ -54,9 +57,11 @@ class ListTag extends Tag {
 
   void remove(Tag tag) {
     value.remove(tag);
+    tag.updateParent(null);
   }
 
   void removeAt(int index) {
+    value[index].updateParent(null);
     value.removeAt(index);
   }
 
@@ -79,6 +84,16 @@ class ListTag extends Tag {
     return value.length;
   }
 
+  void clear() {
+    // Clear the list
+    for (var entry in value) {
+      entry.updateParent(null);
+      entry.setParentTagType(TagType.End);
+    }
+
+    value.clear();
+  }
+
   @override
   void prettyPrint(int indent, bool recurse) {
     print(

pubspec.yaml

@@ -1,6 +1,6 @@
 name: libac_dart
 description: "Aria's Creations code library"
-version: 1.2.072124+0507
+version: 1.2.072224+0449
 homepage: "https://zontreck.com"