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Merge branch 'master' into mania-difficulty
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Dean Herbert
GitHub
152
osu.Game/Rulesets/Scoring/Legacy/LegacyScoreParser.cs
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152
osu.Game/Rulesets/Scoring/Legacy/LegacyScoreParser.cs
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// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using System.IO;
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using osu.Game.Beatmaps;
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using osu.Game.IO.Legacy;
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using osu.Game.Rulesets.Replays;
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using osu.Game.Rulesets.Replays.Legacy;
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using osu.Game.Users;
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using SharpCompress.Compressors.LZMA;
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namespace osu.Game.Rulesets.Scoring.Legacy
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{
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public class LegacyScoreParser
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{
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private readonly RulesetStore rulesets;
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private readonly BeatmapManager beatmaps;
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public LegacyScoreParser(RulesetStore rulesets, BeatmapManager beatmaps)
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{
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this.rulesets = rulesets;
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this.beatmaps = beatmaps;
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}
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private Beatmap currentBeatmap;
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private Ruleset currentRuleset;
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public Score Parse(Stream stream)
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{
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Score score;
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using (SerializationReader sr = new SerializationReader(stream))
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{
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score = new Score { Ruleset = rulesets.GetRuleset(sr.ReadByte()) };
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currentRuleset = score.Ruleset.CreateInstance();
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/* score.Pass = true;*/
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var version = sr.ReadInt32();
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/* score.FileChecksum = */
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var beatmapHash = sr.ReadString();
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score.Beatmap = beatmaps.QueryBeatmap(b => b.MD5Hash == beatmapHash);
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currentBeatmap = beatmaps.GetWorkingBeatmap(score.Beatmap).Beatmap;
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/* score.PlayerName = */
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score.User = new User { Username = sr.ReadString() };
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/* var localScoreChecksum = */
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sr.ReadString();
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/* score.Count300 = */
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sr.ReadUInt16();
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/* score.Count100 = */
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sr.ReadUInt16();
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/* score.Count50 = */
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sr.ReadUInt16();
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/* score.CountGeki = */
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sr.ReadUInt16();
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/* score.CountKatu = */
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sr.ReadUInt16();
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/* score.CountMiss = */
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sr.ReadUInt16();
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score.TotalScore = sr.ReadInt32();
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score.MaxCombo = sr.ReadUInt16();
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/* score.Perfect = */
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sr.ReadBoolean();
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/* score.EnabledMods = (Mods)*/
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sr.ReadInt32();
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/* score.HpGraphString = */
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sr.ReadString();
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/* score.Date = */
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sr.ReadDateTime();
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var compressedReplay = sr.ReadByteArray();
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if (version >= 20140721)
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/*OnlineId =*/
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sr.ReadInt64();
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else if (version >= 20121008)
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/*OnlineId =*/
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sr.ReadInt32();
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using (var replayInStream = new MemoryStream(compressedReplay))
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{
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byte[] properties = new byte[5];
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if (replayInStream.Read(properties, 0, 5) != 5)
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throw new IOException("input .lzma is too short");
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long outSize = 0;
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for (int i = 0; i < 8; i++)
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{
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int v = replayInStream.ReadByte();
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if (v < 0)
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throw new IOException("Can't Read 1");
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outSize |= (long)(byte)v << (8 * i);
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}
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long compressedSize = replayInStream.Length - replayInStream.Position;
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using (var lzma = new LzmaStream(properties, replayInStream, compressedSize, outSize))
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using (var reader = new StreamReader(lzma))
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{
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score.Replay = new Replay { User = score.User };
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readLegacyReplay(score.Replay, reader);
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}
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}
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}
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return score;
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}
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private void readLegacyReplay(Replay replay, StreamReader reader)
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{
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float lastTime = 0;
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foreach (var l in reader.ReadToEnd().Split(','))
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{
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var split = l.Split('|');
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if (split.Length < 4)
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continue;
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if (split[0] == "-12345")
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{
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// Todo: The seed is provided in split[3], which we'll need to use at some point
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continue;
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}
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var diff = float.Parse(split[0]);
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lastTime += diff;
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// Todo: At some point we probably want to rewind and play back the negative-time frames
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// but for now we'll achieve equal playback to stable by skipping negative frames
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if (diff < 0)
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continue;
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replay.Frames.Add(convertFrame(new LegacyReplayFrame(lastTime, float.Parse(split[1]), float.Parse(split[2]), (ReplayButtonState)int.Parse(split[3]))));
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}
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}
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private ReplayFrame convertFrame(LegacyReplayFrame legacyFrame)
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{
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var convertible = currentRuleset.CreateConvertibleReplayFrame();
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if (convertible == null)
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throw new InvalidOperationException($"Legacy replay cannot be converted for the ruleset: {currentRuleset.Description}");
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convertible.ConvertFrom(legacyFrame, currentBeatmap);
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var frame = (ReplayFrame)convertible;
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frame.Time = legacyFrame.Time;
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return frame;
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}
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}
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}
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@ -2,16 +2,12 @@
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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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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using osu.Framework.Platform;
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using osu.Game.Beatmaps;
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using osu.Game.Database;
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using osu.Game.IO.Legacy;
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using osu.Game.IPC;
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using osu.Game.Rulesets.Replays;
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using osu.Game.Users;
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using SharpCompress.Compressors.LZMA;
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using osu.Game.Rulesets.Scoring.Legacy;
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namespace osu.Game.Rulesets.Scoring
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{
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@ -53,127 +49,8 @@ namespace osu.Game.Rulesets.Scoring
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public Score ReadReplayFile(string replayFilename)
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{
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Score score;
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using (Stream s = storage.GetStream(Path.Combine(replay_folder, replayFilename)))
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using (SerializationReader sr = new SerializationReader(s))
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{
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score = new Score
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{
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Ruleset = rulesets.GetRuleset(sr.ReadByte())
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};
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/* score.Pass = true;*/
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var version = sr.ReadInt32();
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/* score.FileChecksum = */
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var beatmapHash = sr.ReadString();
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score.Beatmap = beatmaps.QueryBeatmap(b => b.MD5Hash == beatmapHash);
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/* score.PlayerName = */
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score.User = new User { Username = sr.ReadString() };
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/* var localScoreChecksum = */
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sr.ReadString();
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/* score.Count300 = */
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sr.ReadUInt16();
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/* score.Count100 = */
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sr.ReadUInt16();
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/* score.Count50 = */
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sr.ReadUInt16();
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/* score.CountGeki = */
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sr.ReadUInt16();
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/* score.CountKatu = */
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sr.ReadUInt16();
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/* score.CountMiss = */
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sr.ReadUInt16();
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score.TotalScore = sr.ReadInt32();
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score.MaxCombo = sr.ReadUInt16();
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/* score.Perfect = */
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sr.ReadBoolean();
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/* score.EnabledMods = (Mods)*/
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sr.ReadInt32();
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/* score.HpGraphString = */
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sr.ReadString();
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/* score.Date = */
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sr.ReadDateTime();
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var compressedReplay = sr.ReadByteArray();
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if (version >= 20140721)
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/*OnlineId =*/
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sr.ReadInt64();
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else if (version >= 20121008)
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/*OnlineId =*/
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sr.ReadInt32();
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using (var replayInStream = new MemoryStream(compressedReplay))
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{
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byte[] properties = new byte[5];
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if (replayInStream.Read(properties, 0, 5) != 5)
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throw new IOException("input .lzma is too short");
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long outSize = 0;
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for (int i = 0; i < 8; i++)
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{
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int v = replayInStream.ReadByte();
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if (v < 0)
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throw new IOException("Can't Read 1");
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outSize |= (long)(byte)v << (8 * i);
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}
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long compressedSize = replayInStream.Length - replayInStream.Position;
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using (var lzma = new LzmaStream(properties, replayInStream, compressedSize, outSize))
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using (var reader = new StreamReader(lzma))
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{
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score.Replay = createLegacyReplay(reader);
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score.Replay.User = score.User;
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}
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}
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}
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return score;
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return new LegacyScoreParser(rulesets, beatmaps).Parse(s);
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}
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/// <summary>
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/// Creates a legacy replay which is read from a stream.
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/// </summary>
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/// <param name="reader">The stream reader.</param>
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/// <returns>The legacy replay.</returns>
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private Replay createLegacyReplay(StreamReader reader)
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{
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var frames = new List<ReplayFrame>();
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float lastTime = 0;
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foreach (var l in reader.ReadToEnd().Split(','))
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{
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var split = l.Split('|');
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if (split.Length < 4)
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continue;
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if (split[0] == "-12345")
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{
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// Todo: The seed is provided in split[3], which we'll need to use at some point
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continue;
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}
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var diff = float.Parse(split[0]);
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lastTime += diff;
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// Todo: At some point we probably want to rewind and play back the negative-time frames
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// but for now we'll achieve equal playback to stable by skipping negative frames
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if (diff < 0)
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continue;
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frames.Add(new ReplayFrame(
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lastTime,
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float.Parse(split[1]),
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float.Parse(split[2]),
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(ReplayButtonState)int.Parse(split[3])
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));
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}
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return new Replay { Frames = frames };
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}
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}
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}
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