osu/osu.Game/Beatmaps/FlatFileWorkingBeatmap.cs
2021-11-28 14:03:21 +09:00

53 lines
2.1 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.IO;
using osu.Framework.Audio.Track;
using osu.Framework.Graphics.Textures;
using osu.Game.Beatmaps.Formats;
using osu.Game.IO;
using osu.Game.Rulesets;
using osu.Game.Skinning;
namespace osu.Game.Beatmaps
{
/// <summary>
/// A <see cref="WorkingBeatmap"/> which can be constructed directly from a .osu file, providing an implementation for
/// <see cref="WorkingBeatmap.GetPlayableBeatmap(osu.Game.Rulesets.IRulesetInfo,System.Collections.Generic.IReadOnlyList{osu.Game.Rulesets.Mods.Mod})"/>.
/// </summary>
public class FlatFileWorkingBeatmap : WorkingBeatmap
{
private readonly Beatmap beatmap;
public FlatFileWorkingBeatmap(string file, Func<int, Ruleset> rulesetProvider, int? beatmapId = null)
: this(readFromFile(file), rulesetProvider, beatmapId)
{
}
private FlatFileWorkingBeatmap(Beatmap beatmap, Func<int, Ruleset> rulesetProvider, int? beatmapId = null)
: base(beatmap.BeatmapInfo, null)
{
this.beatmap = beatmap;
beatmap.BeatmapInfo.Ruleset = rulesetProvider(beatmap.BeatmapInfo.RulesetID).RulesetInfo;
if (beatmapId.HasValue)
beatmap.BeatmapInfo.OnlineID = beatmapId;
}
private static Beatmap readFromFile(string filename)
{
using (var stream = File.OpenRead(filename))
using (var reader = new LineBufferedReader(stream))
return Decoder.GetDecoder<Beatmap>(reader).Decode(reader);
}
protected override IBeatmap GetBeatmap() => beatmap;
protected override Texture GetBackground() => throw new NotImplementedException();
protected override Track GetBeatmapTrack() => throw new NotImplementedException();
protected internal override ISkin GetSkin() => throw new NotImplementedException();
public override Stream GetStream(string storagePath) => throw new NotImplementedException();
}
}