mirror of https://github.com/ppy/osu
25 lines
802 B
C#
25 lines
802 B
C#
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using System;
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using System.Collections.Generic;
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using System.IO;
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namespace osu.Game.Beatmaps.Formats
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{
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public abstract class BeatmapDecoder
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{
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private static Dictionary<string, Type> Decoders { get; set; } = new Dictionary<string, Type>();
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public static BeatmapDecoder GetDecoder(TextReader stream)
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{
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var line = stream.ReadLine().Trim();
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if (!Decoders.ContainsKey(line))
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throw new IOException("Unknown file format");
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return (BeatmapDecoder)Activator.CreateInstance(Decoders[line]);
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}
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protected static void AddDecoder<T>(string magic) where T : BeatmapDecoder
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{
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Decoders[magic] = typeof(T);
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}
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public abstract Beatmap Decode(TextReader stream);
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}
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}
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