52 lines
1.3 KiB
Dart
52 lines
1.3 KiB
Dart
import 'package:libac_flutter/nbt/Stream.dart';
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import 'package:libac_flutter/nbt/Tag.dart';
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import 'package:libac_flutter/nbt/impl/CompoundTag.dart';
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class NbtIo {
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static ByteLayer _io = ByteLayer();
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// Handle various helper functions here!
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static Future<void> _read(String file) async {
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_io = ByteLayer();
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await _io.readFromFile(file);
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}
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// This function will read the file and check if it is infact gzipped
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static Future<CompoundTag> read(String file) async {
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await _read(file);
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if (_io.readByte() == TagType.Compound.byte) {
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_io.resetPosition();
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return Tag.readNamedTag(_io) as CompoundTag;
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} else {
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// Is likely gzip compressed
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return readCompressed(file);
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}
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}
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static Future<CompoundTag> readCompressed(String file) async {
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_io = ByteLayer();
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await _io.readFromFile(file);
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await _io.decompress();
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_io.resetPosition();
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return Tag.readNamedTag(_io) as CompoundTag;
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}
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static Future<void> write(String file, CompoundTag tag) async {
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_io = ByteLayer();
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Tag.writeNamedTag(tag, _io);
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await _io.writeToFile(file);
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}
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static Future<void> writeCompressed(String file, CompoundTag tag) async {
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_io = ByteLayer();
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Tag.writeNamedTag(tag, _io);
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await _io.compress();
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await _io.writeToFile(file);
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}
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static ByteLayer getStream() {
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return _io;
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}
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}
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