*Database -> *Store

Welcome back BeatmapManager

osu.Game/Rulesets/Scoring/ScoreStore.cs

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+// 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.Collections.Generic;
+using System.IO;
+using osu.Framework.Platform;
+using osu.Game.Beatmaps;
+using osu.Game.Database;
+using osu.Game.IO.Legacy;
+using osu.Game.IPC;
+using osu.Game.Rulesets.Replays;
+using SharpCompress.Compressors.LZMA;
+using SQLite.Net;
+
+namespace osu.Game.Rulesets.Scoring
+{
+    public class ScoreStore : DatabaseBackedStore
+    {
+        private readonly Storage storage;
+
+        private readonly BeatmapManager beatmaps;
+        private readonly RulesetStore rulesets;
+
+        private const string replay_folder = @"replays";
+
+        // ReSharper disable once NotAccessedField.Local (we should keep a reference to this so it is not finalised)
+        private ScoreIPCChannel ipc;
+
+        public ScoreStore(Storage storage, SQLiteConnection connection, IIpcHost importHost = null, BeatmapManager beatmaps = null, RulesetStore rulesets = null) : base(connection)
+        {
+            this.storage = storage;
+            this.beatmaps = beatmaps;
+            this.rulesets = rulesets;
+
+            if (importHost != null)
+                ipc = new ScoreIPCChannel(importHost, this);
+        }
+
+        public Score ReadReplayFile(string replayFilename)
+        {
+            Score score;
+
+            using (Stream s = storage.GetStream(Path.Combine(replay_folder, replayFilename)))
+            using (SerializationReader sr = new SerializationReader(s))
+            {
+                score = new Score
+                {
+                    Ruleset = rulesets.GetRuleset(sr.ReadByte())
+                };
+
+                /* score.Pass = true;*/
+                var version = sr.ReadInt32();
+                /* score.FileChecksum = */
+                var beatmapHash = sr.ReadString();
+                score.Beatmap = beatmaps.QueryBeatmap(b => b.Hash == beatmapHash);
+                /* score.PlayerName = */
+                sr.ReadString();
+                /* var localScoreChecksum = */
+                sr.ReadString();
+                /* score.Count300 = */
+                sr.ReadUInt16();
+                /* score.Count100 = */
+                sr.ReadUInt16();
+                /* score.Count50 = */
+                sr.ReadUInt16();
+                /* score.CountGeki = */
+                sr.ReadUInt16();
+                /* score.CountKatu = */
+                sr.ReadUInt16();
+                /* score.CountMiss = */
+                sr.ReadUInt16();
+                score.TotalScore = sr.ReadInt32();
+                score.MaxCombo = sr.ReadUInt16();
+                /* score.Perfect = */
+                sr.ReadBoolean();
+                /* score.EnabledMods = (Mods)*/
+                sr.ReadInt32();
+                /* score.HpGraphString = */
+                sr.ReadString();
+                /* score.Date = */
+                sr.ReadDateTime();
+
+                var compressedReplay = sr.ReadByteArray();
+
+                if (version >= 20140721)
+                    /*OnlineId =*/
+                    sr.ReadInt64();
+                else if (version >= 20121008)
+                    /*OnlineId =*/
+                    sr.ReadInt32();
+
+                using (var replayInStream = new MemoryStream(compressedReplay))
+                {
+                    byte[] properties = new byte[5];
+                    if (replayInStream.Read(properties, 0, 5) != 5)
+                        throw new IOException("input .lzma is too short");
+                    long outSize = 0;
+                    for (int i = 0; i < 8; i++)
+                    {
+                        int v = replayInStream.ReadByte();
+                        if (v < 0)
+                            throw new IOException("Can't Read 1");
+                        outSize |= (long)(byte)v << (8 * i);
+                    }
+
+                    long compressedSize = replayInStream.Length - replayInStream.Position;
+
+                    using (var lzma = new LzmaStream(properties, replayInStream, compressedSize, outSize))
+                    using (var reader = new StreamReader(lzma))
+                        score.Replay = createLegacyReplay(reader);
+                }
+            }
+
+            return score;
+        }
+
+        /// <summary>
+        /// Creates a legacy replay which is read from a stream.
+        /// </summary>
+        /// <param name="reader">The stream reader.</param>
+        /// <returns>The legacy replay.</returns>
+        private Replay createLegacyReplay(StreamReader reader)
+        {
+            var frames = new List<ReplayFrame>();
+
+            float lastTime = 0;
+
+            foreach (var l in reader.ReadToEnd().Split(','))
+            {
+                var split = l.Split('|');
+
+                if (split.Length < 4 || float.Parse(split[0]) < 0) continue;
+
+                lastTime += float.Parse(split[0]);
+
+                frames.Add(new ReplayFrame(
+                    lastTime,
+                    float.Parse(split[1]),
+                    384 - float.Parse(split[2]),
+                    (ReplayButtonState)int.Parse(split[3])
+                ));
+            }
+
+            return new Replay { Frames = frames };
+        }
+
+        protected override void Prepare(bool reset = false)
+        {
+        }
+
+        protected override Type[] ValidTypes => new[] { typeof(Score) };
+    }
+}