1
0
mirror of https://github.com/ppy/osu.git synced 2024-12-16 17:42:54 +08:00
osu-lazer/osu.Desktop/Beatmaps/IO/LegacyFilesystemReader.cs
2017-02-13 18:30:51 +09:00

55 lines
1.8 KiB
C#

// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using osu.Game.Beatmaps.Formats;
using osu.Game.Beatmaps.IO;
using osu.Game.Beatmaps;
using osu.Game.Database;
namespace osu.Desktop.Beatmaps.IO
{
/// <summary>
/// Reads an extracted legacy beatmap from disk.
/// </summary>
public class LegacyFilesystemReader : ArchiveReader
{
public static void Register() => AddReader<LegacyFilesystemReader>((storage, path) => Directory.Exists(path));
private string basePath { get; set; }
private Beatmap firstMap { get; set; }
public LegacyFilesystemReader(string path)
{
basePath = path;
BeatmapFilenames = Directory.GetFiles(basePath, @"*.osu").Select(f => Path.GetFileName(f)).ToArray();
if (BeatmapFilenames.Length == 0)
throw new FileNotFoundException(@"This directory contains no beatmaps");
StoryboardFilename = Directory.GetFiles(basePath, @"*.osb").Select(f => Path.GetFileName(f)).FirstOrDefault();
using (var stream = new StreamReader(GetStream(BeatmapFilenames[0])))
{
var decoder = BeatmapDecoder.GetDecoder(stream);
firstMap = decoder.Decode(stream);
}
}
public override Stream GetStream(string name)
{
return File.OpenRead(Path.Combine(basePath, name));
}
public override BeatmapMetadata ReadMetadata()
{
return firstMap.BeatmapInfo.Metadata;
}
public override void Dispose()
{
// no-op
}
}
}