// 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.Collections.Generic; using System.Diagnostics; using System.Globalization; using System.Linq; using osu.Game.Beatmaps.Formats; namespace osu.Game.Skinning { public class LegacyManiaSkinDecoder : LegacyDecoder<List<LegacyManiaSkinConfiguration>> { public LegacyManiaSkinDecoder() : base(1) { } private readonly List<string> pendingLines = new List<string>(); private LegacyManiaSkinConfiguration currentConfig; protected override void OnBeginNewSection(Section section) { base.OnBeginNewSection(section); // If a new section is reached with pending lines remaining, they can all be discarded as there isn't a valid configuration to parse them into. pendingLines.Clear(); currentConfig = null; } protected override void ParseLine(List<LegacyManiaSkinConfiguration> output, Section section, string line) { line = StripComments(line); switch (section) { case Section.Mania: var pair = SplitKeyVal(line); switch (pair.Key) { case "Keys": currentConfig = new LegacyManiaSkinConfiguration(int.Parse(pair.Value, CultureInfo.InvariantCulture)); // Silently ignore duplicate configurations. if (output.All(c => c.Keys != currentConfig.Keys)) output.Add(currentConfig); // All existing lines can be flushed now that we have a valid configuration. flushPendingLines(); break; default: pendingLines.Add(line); // Hold all lines until a "Keys" item is found. if (currentConfig != null) flushPendingLines(); break; } break; } } private void flushPendingLines() { Debug.Assert(currentConfig != null); foreach (var line in pendingLines) { var pair = SplitKeyVal(line); switch (pair.Key) { case "ColumnLineWidth": parseArrayValue(pair.Value, currentConfig.ColumnLineWidth, false); break; case "ColumnSpacing": parseArrayValue(pair.Value, currentConfig.ColumnSpacing); break; case "ColumnWidth": parseArrayValue(pair.Value, currentConfig.ColumnWidth); break; case "HitPosition": currentConfig.HitPosition = (480 - float.Parse(pair.Value, CultureInfo.InvariantCulture)) * LegacyManiaSkinConfiguration.POSITION_SCALE_FACTOR; break; case "LightPosition": currentConfig.LightPosition = (480 - float.Parse(pair.Value, CultureInfo.InvariantCulture)) * LegacyManiaSkinConfiguration.POSITION_SCALE_FACTOR; break; case "JudgementLine": currentConfig.ShowJudgementLine = pair.Value == "1"; break; case "LightingNWidth": parseArrayValue(pair.Value, currentConfig.ExplosionWidth); break; case "WidthForNoteHeightScale": float minWidth = float.Parse(pair.Value, CultureInfo.InvariantCulture) * LegacyManiaSkinConfiguration.POSITION_SCALE_FACTOR; if (minWidth > 0) currentConfig.MinimumColumnWidth = minWidth; break; case string _ when pair.Key.StartsWith("Colour"): HandleColours(currentConfig, line); break; case string _ when pair.Key.StartsWith("NoteImage"): currentConfig.ImageLookups[pair.Key] = pair.Value; break; case string _ when pair.Key.StartsWith("KeyImage"): currentConfig.ImageLookups[pair.Key] = pair.Value; break; } } pendingLines.Clear(); } private void parseArrayValue(string value, float[] output, bool applyScaleFactor = true) { string[] values = value.Split(','); for (int i = 0; i < values.Length; i++) { if (i >= output.Length) break; output[i] = float.Parse(values[i], CultureInfo.InvariantCulture) * (applyScaleFactor ? LegacyManiaSkinConfiguration.POSITION_SCALE_FACTOR : 1); } } } }