mirror of
https://github.com/ppy/osu.git
synced 2024-11-06 12:17:46 +08:00
411 lines
18 KiB
C#
411 lines
18 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.Collections.Generic;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Text;
|
|
using osu.Game.Audio;
|
|
using osu.Game.Beatmaps.ControlPoints;
|
|
using osu.Game.Beatmaps.Legacy;
|
|
using osu.Game.Rulesets.Objects;
|
|
using osu.Game.Rulesets.Objects.Types;
|
|
|
|
namespace osu.Game.Beatmaps.Formats
|
|
{
|
|
public class LegacyBeatmapEncoder
|
|
{
|
|
public const int LATEST_VERSION = 128;
|
|
|
|
private readonly IBeatmap beatmap;
|
|
|
|
public LegacyBeatmapEncoder(IBeatmap beatmap)
|
|
{
|
|
this.beatmap = beatmap;
|
|
|
|
if (beatmap.BeatmapInfo.RulesetID < 0 || beatmap.BeatmapInfo.RulesetID > 3)
|
|
throw new ArgumentException("Only beatmaps in the osu, taiko, catch, or mania rulesets can be encoded to the legacy beatmap format.", nameof(beatmap));
|
|
}
|
|
|
|
public void Encode(TextWriter writer)
|
|
{
|
|
writer.WriteLine($"osu file format v{LATEST_VERSION}");
|
|
|
|
writer.WriteLine();
|
|
handleGeneral(writer);
|
|
|
|
writer.WriteLine();
|
|
handleEditor(writer);
|
|
|
|
writer.WriteLine();
|
|
handleMetadata(writer);
|
|
|
|
writer.WriteLine();
|
|
handleDifficulty(writer);
|
|
|
|
writer.WriteLine();
|
|
handleEvents(writer);
|
|
|
|
writer.WriteLine();
|
|
handleTimingPoints(writer);
|
|
|
|
writer.WriteLine();
|
|
handleHitObjects(writer);
|
|
}
|
|
|
|
private void handleGeneral(TextWriter writer)
|
|
{
|
|
writer.WriteLine("[General]");
|
|
|
|
writer.WriteLine(FormattableString.Invariant($"AudioFilename: {Path.GetFileName(beatmap.Metadata.AudioFile)}"));
|
|
writer.WriteLine(FormattableString.Invariant($"AudioLeadIn: {beatmap.BeatmapInfo.AudioLeadIn}"));
|
|
writer.WriteLine(FormattableString.Invariant($"PreviewTime: {beatmap.Metadata.PreviewTime}"));
|
|
// Todo: Not all countdown types are supported by lazer yet
|
|
writer.WriteLine(FormattableString.Invariant($"Countdown: {(beatmap.BeatmapInfo.Countdown ? '1' : '0')}"));
|
|
writer.WriteLine(FormattableString.Invariant($"SampleSet: {toLegacySampleBank(beatmap.ControlPointInfo.SamplePointAt(double.MinValue).SampleBank)}"));
|
|
writer.WriteLine(FormattableString.Invariant($"StackLeniency: {beatmap.BeatmapInfo.StackLeniency}"));
|
|
writer.WriteLine(FormattableString.Invariant($"Mode: {beatmap.BeatmapInfo.RulesetID}"));
|
|
writer.WriteLine(FormattableString.Invariant($"LetterboxInBreaks: {(beatmap.BeatmapInfo.LetterboxInBreaks ? '1' : '0')}"));
|
|
// if (beatmap.BeatmapInfo.UseSkinSprites)
|
|
// writer.WriteLine(@"UseSkinSprites: 1");
|
|
// if (b.AlwaysShowPlayfield)
|
|
// writer.WriteLine(@"AlwaysShowPlayfield: 1");
|
|
// if (b.OverlayPosition != OverlayPosition.NoChange)
|
|
// writer.WriteLine(@"OverlayPosition: " + b.OverlayPosition);
|
|
// if (!string.IsNullOrEmpty(b.SkinPreference))
|
|
// writer.WriteLine(@"SkinPreference:" + b.SkinPreference);
|
|
// if (b.EpilepsyWarning)
|
|
// writer.WriteLine(@"EpilepsyWarning: 1");
|
|
// if (b.CountdownOffset > 0)
|
|
// writer.WriteLine(@"CountdownOffset: " + b.CountdownOffset.ToString());
|
|
if (beatmap.BeatmapInfo.RulesetID == 3)
|
|
writer.WriteLine(FormattableString.Invariant($"SpecialStyle: {(beatmap.BeatmapInfo.SpecialStyle ? '1' : '0')}"));
|
|
writer.WriteLine(FormattableString.Invariant($"WidescreenStoryboard: {(beatmap.BeatmapInfo.WidescreenStoryboard ? '1' : '0')}"));
|
|
// if (b.SamplesMatchPlaybackRate)
|
|
// writer.WriteLine(@"SamplesMatchPlaybackRate: 1");
|
|
}
|
|
|
|
private void handleEditor(TextWriter writer)
|
|
{
|
|
writer.WriteLine("[Editor]");
|
|
|
|
if (beatmap.BeatmapInfo.Bookmarks.Length > 0)
|
|
writer.WriteLine(FormattableString.Invariant($"Bookmarks: {string.Join(',', beatmap.BeatmapInfo.Bookmarks)}"));
|
|
writer.WriteLine(FormattableString.Invariant($"DistanceSpacing: {beatmap.BeatmapInfo.DistanceSpacing}"));
|
|
writer.WriteLine(FormattableString.Invariant($"BeatDivisor: {beatmap.BeatmapInfo.BeatDivisor}"));
|
|
writer.WriteLine(FormattableString.Invariant($"GridSize: {beatmap.BeatmapInfo.GridSize}"));
|
|
writer.WriteLine(FormattableString.Invariant($"TimelineZoom: {beatmap.BeatmapInfo.TimelineZoom}"));
|
|
}
|
|
|
|
private void handleMetadata(TextWriter writer)
|
|
{
|
|
writer.WriteLine("[Metadata]");
|
|
|
|
writer.WriteLine(FormattableString.Invariant($"Title: {beatmap.Metadata.Title}"));
|
|
writer.WriteLine(FormattableString.Invariant($"TitleUnicode: {beatmap.Metadata.TitleUnicode}"));
|
|
writer.WriteLine(FormattableString.Invariant($"Artist: {beatmap.Metadata.Artist}"));
|
|
writer.WriteLine(FormattableString.Invariant($"ArtistUnicode: {beatmap.Metadata.ArtistUnicode}"));
|
|
writer.WriteLine(FormattableString.Invariant($"Creator: {beatmap.Metadata.AuthorString}"));
|
|
writer.WriteLine(FormattableString.Invariant($"Version: {beatmap.BeatmapInfo.Version}"));
|
|
writer.WriteLine(FormattableString.Invariant($"Source: {beatmap.Metadata.Source}"));
|
|
writer.WriteLine(FormattableString.Invariant($"Tags: {beatmap.Metadata.Tags}"));
|
|
writer.WriteLine(FormattableString.Invariant($"BeatmapID: {beatmap.BeatmapInfo.OnlineBeatmapID ?? 0}"));
|
|
writer.WriteLine(FormattableString.Invariant($"BeatmapSetID: {beatmap.BeatmapInfo.BeatmapSet.OnlineBeatmapSetID ?? -1}"));
|
|
}
|
|
|
|
private void handleDifficulty(TextWriter writer)
|
|
{
|
|
writer.WriteLine("[Difficulty]");
|
|
|
|
writer.WriteLine(FormattableString.Invariant($"HPDrainRate: {beatmap.BeatmapInfo.BaseDifficulty.DrainRate}"));
|
|
writer.WriteLine(FormattableString.Invariant($"CircleSize: {beatmap.BeatmapInfo.BaseDifficulty.CircleSize}"));
|
|
writer.WriteLine(FormattableString.Invariant($"OverallDifficulty: {beatmap.BeatmapInfo.BaseDifficulty.OverallDifficulty}"));
|
|
writer.WriteLine(FormattableString.Invariant($"ApproachRate: {beatmap.BeatmapInfo.BaseDifficulty.ApproachRate}"));
|
|
writer.WriteLine(FormattableString.Invariant($"SliderMultiplier: {beatmap.BeatmapInfo.BaseDifficulty.SliderMultiplier}"));
|
|
writer.WriteLine(FormattableString.Invariant($"SliderTickRate: {beatmap.BeatmapInfo.BaseDifficulty.SliderTickRate}"));
|
|
}
|
|
|
|
private void handleEvents(TextWriter writer)
|
|
{
|
|
writer.WriteLine("[Events]");
|
|
|
|
if (!string.IsNullOrEmpty(beatmap.BeatmapInfo.Metadata.BackgroundFile))
|
|
writer.WriteLine(FormattableString.Invariant($"{(int)LegacyEventType.Background},0,\"{beatmap.BeatmapInfo.Metadata.BackgroundFile}\",0,0"));
|
|
|
|
if (!string.IsNullOrEmpty(beatmap.BeatmapInfo.Metadata.VideoFile))
|
|
writer.WriteLine(FormattableString.Invariant($"{(int)LegacyEventType.Video},0,\"{beatmap.BeatmapInfo.Metadata.VideoFile}\",0,0"));
|
|
|
|
foreach (var b in beatmap.Breaks)
|
|
writer.WriteLine(FormattableString.Invariant($"{(int)LegacyEventType.Break},{b.StartTime},{b.EndTime}"));
|
|
}
|
|
|
|
private void handleTimingPoints(TextWriter writer)
|
|
{
|
|
if (beatmap.ControlPointInfo.Groups.Count == 0)
|
|
return;
|
|
|
|
writer.WriteLine("[TimingPoints]");
|
|
|
|
foreach (var group in beatmap.ControlPointInfo.Groups)
|
|
{
|
|
var timingPoint = group.ControlPoints.OfType<TimingControlPoint>().FirstOrDefault();
|
|
var difficultyPoint = beatmap.ControlPointInfo.DifficultyPointAt(group.Time);
|
|
var samplePoint = beatmap.ControlPointInfo.SamplePointAt(group.Time);
|
|
var effectPoint = beatmap.ControlPointInfo.EffectPointAt(group.Time);
|
|
|
|
// Convert beat length the legacy format
|
|
double beatLength;
|
|
if (timingPoint != null)
|
|
beatLength = timingPoint.BeatLength;
|
|
else
|
|
beatLength = -100 / difficultyPoint.SpeedMultiplier;
|
|
|
|
// Apply the control point to a hit sample to uncover legacy properties (e.g. suffix)
|
|
HitSampleInfo tempHitSample = samplePoint.ApplyTo(new HitSampleInfo());
|
|
|
|
// Convert effect flags to the legacy format
|
|
LegacyEffectFlags effectFlags = LegacyEffectFlags.None;
|
|
if (effectPoint.KiaiMode)
|
|
effectFlags |= LegacyEffectFlags.Kiai;
|
|
if (effectPoint.OmitFirstBarLine)
|
|
effectFlags |= LegacyEffectFlags.OmitFirstBarLine;
|
|
|
|
writer.Write(FormattableString.Invariant($"{group.Time},"));
|
|
writer.Write(FormattableString.Invariant($"{beatLength},"));
|
|
writer.Write(FormattableString.Invariant($"{(int)beatmap.ControlPointInfo.TimingPointAt(group.Time).TimeSignature},"));
|
|
writer.Write(FormattableString.Invariant($"{(int)toLegacySampleBank(tempHitSample.Bank)},"));
|
|
writer.Write(FormattableString.Invariant($"{toLegacyCustomSampleBank(tempHitSample.Suffix)},"));
|
|
writer.Write(FormattableString.Invariant($"{tempHitSample.Volume},"));
|
|
writer.Write(FormattableString.Invariant($"{(timingPoint != null ? '1' : '0')},"));
|
|
writer.Write(FormattableString.Invariant($"{(int)effectFlags}"));
|
|
writer.WriteLine();
|
|
}
|
|
}
|
|
|
|
private void handleHitObjects(TextWriter writer)
|
|
{
|
|
if (beatmap.HitObjects.Count == 0)
|
|
return;
|
|
|
|
writer.WriteLine("[HitObjects]");
|
|
|
|
switch (beatmap.BeatmapInfo.RulesetID)
|
|
{
|
|
case 0:
|
|
foreach (var h in beatmap.HitObjects)
|
|
handleOsuHitObject(writer, h);
|
|
break;
|
|
|
|
case 1:
|
|
foreach (var h in beatmap.HitObjects)
|
|
handleTaikoHitObject(writer, h);
|
|
break;
|
|
|
|
case 2:
|
|
foreach (var h in beatmap.HitObjects)
|
|
handleCatchHitObject(writer, h);
|
|
break;
|
|
|
|
case 3:
|
|
foreach (var h in beatmap.HitObjects)
|
|
handleManiaHitObject(writer, h);
|
|
break;
|
|
}
|
|
}
|
|
|
|
private void handleOsuHitObject(TextWriter writer, HitObject hitObject)
|
|
{
|
|
var positionData = (IHasPosition)hitObject;
|
|
|
|
writer.Write(FormattableString.Invariant($"{positionData.X},"));
|
|
writer.Write(FormattableString.Invariant($"{positionData.Y},"));
|
|
writer.Write(FormattableString.Invariant($"{hitObject.StartTime},"));
|
|
writer.Write(FormattableString.Invariant($"{(int)getObjectType(hitObject)},"));
|
|
|
|
writer.Write(hitObject is IHasCurve
|
|
? FormattableString.Invariant($"0,")
|
|
: FormattableString.Invariant($"{(int)toLegacyHitSoundType(hitObject.Samples)},"));
|
|
|
|
if (hitObject is IHasCurve curveData)
|
|
{
|
|
addCurveData(writer, curveData, positionData);
|
|
writer.Write(getSampleBank(hitObject.Samples, zeroBanks: true));
|
|
}
|
|
else
|
|
{
|
|
if (hitObject is IHasEndTime endTimeData)
|
|
writer.Write(FormattableString.Invariant($"{endTimeData.EndTime},"));
|
|
writer.Write(getSampleBank(hitObject.Samples));
|
|
}
|
|
|
|
writer.WriteLine();
|
|
}
|
|
|
|
private static LegacyHitObjectType getObjectType(HitObject hitObject)
|
|
{
|
|
var comboData = (IHasCombo)hitObject;
|
|
|
|
var type = (LegacyHitObjectType)(comboData.ComboOffset << 4);
|
|
|
|
if (comboData.NewCombo) type |= LegacyHitObjectType.NewCombo;
|
|
|
|
switch (hitObject)
|
|
{
|
|
case IHasCurve _:
|
|
type |= LegacyHitObjectType.Slider;
|
|
break;
|
|
|
|
case IHasEndTime _:
|
|
type |= LegacyHitObjectType.Spinner | LegacyHitObjectType.NewCombo;
|
|
break;
|
|
|
|
default:
|
|
type |= LegacyHitObjectType.Circle;
|
|
break;
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
private void addCurveData(TextWriter writer, IHasCurve curveData, IHasPosition positionData)
|
|
{
|
|
PathType? lastType = null;
|
|
|
|
for (int i = 0; i < curveData.Path.ControlPoints.Count; i++)
|
|
{
|
|
PathControlPoint point = curveData.Path.ControlPoints[i];
|
|
|
|
if (point.Type.Value != null)
|
|
{
|
|
if (point.Type.Value != lastType)
|
|
{
|
|
switch (point.Type.Value)
|
|
{
|
|
case PathType.Bezier:
|
|
writer.Write("B|");
|
|
break;
|
|
|
|
case PathType.Catmull:
|
|
writer.Write("C|");
|
|
break;
|
|
|
|
case PathType.PerfectCurve:
|
|
writer.Write("P|");
|
|
break;
|
|
|
|
case PathType.Linear:
|
|
writer.Write("L|");
|
|
break;
|
|
}
|
|
|
|
lastType = point.Type.Value;
|
|
}
|
|
else
|
|
{
|
|
// New segment with the same type - duplicate the control point
|
|
writer.Write(FormattableString.Invariant($"{positionData.X + point.Position.Value.X}:{positionData.Y + point.Position.Value.Y}|"));
|
|
}
|
|
}
|
|
|
|
if (i != 0)
|
|
{
|
|
writer.Write(FormattableString.Invariant($"{positionData.X + point.Position.Value.X}:{positionData.Y + point.Position.Value.Y}"));
|
|
writer.Write(i != curveData.Path.ControlPoints.Count - 1 ? "|" : ",");
|
|
}
|
|
}
|
|
|
|
writer.Write(FormattableString.Invariant($"{curveData.RepeatCount + 1},"));
|
|
writer.Write(FormattableString.Invariant($"{curveData.Path.Distance},"));
|
|
|
|
for (int i = 0; i < curveData.NodeSamples.Count; i++)
|
|
{
|
|
writer.Write(FormattableString.Invariant($"{(int)toLegacyHitSoundType(curveData.NodeSamples[i])}"));
|
|
writer.Write(i != curveData.NodeSamples.Count - 1 ? "|" : ",");
|
|
}
|
|
|
|
for (int i = 0; i < curveData.NodeSamples.Count; i++)
|
|
{
|
|
writer.Write(getSampleBank(curveData.NodeSamples[i], true));
|
|
writer.Write(i != curveData.NodeSamples.Count - 1 ? "|" : ",");
|
|
}
|
|
}
|
|
|
|
private void handleTaikoHitObject(TextWriter writer, HitObject hitObject) => throw new NotImplementedException();
|
|
|
|
private void handleCatchHitObject(TextWriter writer, HitObject hitObject) => throw new NotImplementedException();
|
|
|
|
private void handleManiaHitObject(TextWriter writer, HitObject hitObject) => throw new NotImplementedException();
|
|
|
|
private string getSampleBank(IList<HitSampleInfo> samples, bool banksOnly = false, bool zeroBanks = false)
|
|
{
|
|
LegacySampleBank normalBank = toLegacySampleBank(samples.SingleOrDefault(s => s.Name == HitSampleInfo.HIT_NORMAL)?.Bank);
|
|
LegacySampleBank addBank = toLegacySampleBank(samples.FirstOrDefault(s => !string.IsNullOrEmpty(s.Name) && s.Name != HitSampleInfo.HIT_NORMAL)?.Bank);
|
|
|
|
StringBuilder sb = new StringBuilder();
|
|
|
|
sb.Append(FormattableString.Invariant($"{(zeroBanks ? 0 : (int)normalBank)}:"));
|
|
sb.Append(FormattableString.Invariant($"{(zeroBanks ? 0 : (int)addBank)}"));
|
|
|
|
if (!banksOnly)
|
|
{
|
|
string customSampleBank = toLegacyCustomSampleBank(samples.FirstOrDefault(s => !string.IsNullOrEmpty(s.Name))?.Suffix);
|
|
string sampleFilename = samples.FirstOrDefault(s => string.IsNullOrEmpty(s.Name))?.LookupNames.First() ?? string.Empty;
|
|
int volume = samples.FirstOrDefault()?.Volume ?? 100;
|
|
|
|
sb.Append(":");
|
|
sb.Append(FormattableString.Invariant($"{customSampleBank}:"));
|
|
sb.Append(FormattableString.Invariant($"{volume}:"));
|
|
sb.Append(FormattableString.Invariant($"{sampleFilename}"));
|
|
}
|
|
|
|
return sb.ToString();
|
|
}
|
|
|
|
private LegacyHitSoundType toLegacyHitSoundType(IList<HitSampleInfo> samples)
|
|
{
|
|
LegacyHitSoundType type = LegacyHitSoundType.None;
|
|
|
|
foreach (var sample in samples)
|
|
{
|
|
switch (sample.Name)
|
|
{
|
|
case HitSampleInfo.HIT_WHISTLE:
|
|
type |= LegacyHitSoundType.Whistle;
|
|
break;
|
|
|
|
case HitSampleInfo.HIT_FINISH:
|
|
type |= LegacyHitSoundType.Finish;
|
|
break;
|
|
|
|
case HitSampleInfo.HIT_CLAP:
|
|
type |= LegacyHitSoundType.Clap;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return type;
|
|
}
|
|
|
|
private LegacySampleBank toLegacySampleBank(string sampleBank)
|
|
{
|
|
switch (sampleBank?.ToLowerInvariant())
|
|
{
|
|
case "normal":
|
|
return LegacySampleBank.Normal;
|
|
|
|
case "soft":
|
|
return LegacySampleBank.Soft;
|
|
|
|
case "drum":
|
|
return LegacySampleBank.Drum;
|
|
|
|
default:
|
|
return LegacySampleBank.None;
|
|
}
|
|
}
|
|
|
|
private string toLegacyCustomSampleBank(string sampleSuffix) => string.IsNullOrEmpty(sampleSuffix) ? "0" : sampleSuffix;
|
|
}
|
|
}
|