mirror of
https://github.com/ppy/osu.git
synced 2024-09-23 20:47:30 +08:00
448 lines
16 KiB
C#
448 lines
16 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 osuTK;
|
|
using osu.Game.Rulesets.Objects.Types;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using osu.Game.Beatmaps.Formats;
|
|
using osu.Game.Audio;
|
|
using System.Linq;
|
|
using JetBrains.Annotations;
|
|
using osu.Framework.Utils;
|
|
using osu.Game.Beatmaps.Legacy;
|
|
|
|
namespace osu.Game.Rulesets.Objects.Legacy
|
|
{
|
|
/// <summary>
|
|
/// A HitObjectParser to parse legacy Beatmaps.
|
|
/// </summary>
|
|
public abstract class ConvertHitObjectParser : HitObjectParser
|
|
{
|
|
/// <summary>
|
|
/// The offset to apply to all time values.
|
|
/// </summary>
|
|
protected readonly double Offset;
|
|
|
|
/// <summary>
|
|
/// The beatmap version.
|
|
/// </summary>
|
|
protected readonly int FormatVersion;
|
|
|
|
protected bool FirstObject { get; private set; } = true;
|
|
|
|
protected ConvertHitObjectParser(double offset, int formatVersion)
|
|
{
|
|
Offset = offset;
|
|
FormatVersion = formatVersion;
|
|
}
|
|
|
|
[CanBeNull]
|
|
public override HitObject Parse(string text)
|
|
{
|
|
string[] split = text.Split(',');
|
|
|
|
Vector2 pos = new Vector2((int)Parsing.ParseFloat(split[0], Parsing.MAX_COORDINATE_VALUE), (int)Parsing.ParseFloat(split[1], Parsing.MAX_COORDINATE_VALUE));
|
|
|
|
double startTime = Parsing.ParseDouble(split[2]) + Offset;
|
|
|
|
LegacyHitObjectType type = (LegacyHitObjectType)Parsing.ParseInt(split[3]);
|
|
|
|
int comboOffset = (int)(type & LegacyHitObjectType.ComboOffset) >> 4;
|
|
type &= ~LegacyHitObjectType.ComboOffset;
|
|
|
|
bool combo = type.HasFlag(LegacyHitObjectType.NewCombo);
|
|
type &= ~LegacyHitObjectType.NewCombo;
|
|
|
|
var soundType = (LegacyHitSoundType)Parsing.ParseInt(split[4]);
|
|
var bankInfo = new SampleBankInfo();
|
|
|
|
HitObject result = null;
|
|
|
|
if (type.HasFlag(LegacyHitObjectType.Circle))
|
|
{
|
|
result = CreateHit(pos, combo, comboOffset);
|
|
|
|
if (split.Length > 5)
|
|
readCustomSampleBanks(split[5], bankInfo);
|
|
}
|
|
else if (type.HasFlag(LegacyHitObjectType.Slider))
|
|
{
|
|
PathType pathType = PathType.Catmull;
|
|
double? length = null;
|
|
|
|
string[] pointSplit = split[5].Split('|');
|
|
|
|
int pointCount = 1;
|
|
|
|
foreach (var t in pointSplit)
|
|
{
|
|
if (t.Length > 1)
|
|
pointCount++;
|
|
}
|
|
|
|
var points = new Vector2[pointCount];
|
|
|
|
int pointIndex = 1;
|
|
|
|
foreach (string t in pointSplit)
|
|
{
|
|
if (t.Length == 1)
|
|
{
|
|
switch (t)
|
|
{
|
|
case @"C":
|
|
pathType = PathType.Catmull;
|
|
break;
|
|
|
|
case @"B":
|
|
pathType = PathType.Bezier;
|
|
break;
|
|
|
|
case @"L":
|
|
pathType = PathType.Linear;
|
|
break;
|
|
|
|
case @"P":
|
|
pathType = PathType.PerfectCurve;
|
|
break;
|
|
}
|
|
|
|
continue;
|
|
}
|
|
|
|
string[] temp = t.Split(':');
|
|
points[pointIndex++] = new Vector2((int)Parsing.ParseDouble(temp[0], Parsing.MAX_COORDINATE_VALUE), (int)Parsing.ParseDouble(temp[1], Parsing.MAX_COORDINATE_VALUE)) - pos;
|
|
}
|
|
|
|
int repeatCount = Parsing.ParseInt(split[6]);
|
|
|
|
if (repeatCount > 9000)
|
|
throw new FormatException(@"Repeat count is way too high");
|
|
|
|
// osu-stable treated the first span of the slider as a repeat, but no repeats are happening
|
|
repeatCount = Math.Max(0, repeatCount - 1);
|
|
|
|
if (split.Length > 7)
|
|
{
|
|
length = Math.Max(0, Parsing.ParseDouble(split[7], Parsing.MAX_COORDINATE_VALUE));
|
|
if (length == 0)
|
|
length = null;
|
|
}
|
|
|
|
if (split.Length > 10)
|
|
readCustomSampleBanks(split[10], bankInfo);
|
|
|
|
// One node for each repeat + the start and end nodes
|
|
int nodes = repeatCount + 2;
|
|
|
|
// Populate node sample bank infos with the default hit object sample bank
|
|
var nodeBankInfos = new List<SampleBankInfo>();
|
|
for (int i = 0; i < nodes; i++)
|
|
nodeBankInfos.Add(bankInfo.Clone());
|
|
|
|
// Read any per-node sample banks
|
|
if (split.Length > 9 && split[9].Length > 0)
|
|
{
|
|
string[] sets = split[9].Split('|');
|
|
|
|
for (int i = 0; i < nodes; i++)
|
|
{
|
|
if (i >= sets.Length)
|
|
break;
|
|
|
|
SampleBankInfo info = nodeBankInfos[i];
|
|
readCustomSampleBanks(sets[i], info);
|
|
}
|
|
}
|
|
|
|
// Populate node sound types with the default hit object sound type
|
|
var nodeSoundTypes = new List<LegacyHitSoundType>();
|
|
for (int i = 0; i < nodes; i++)
|
|
nodeSoundTypes.Add(soundType);
|
|
|
|
// Read any per-node sound types
|
|
if (split.Length > 8 && split[8].Length > 0)
|
|
{
|
|
string[] adds = split[8].Split('|');
|
|
|
|
for (int i = 0; i < nodes; i++)
|
|
{
|
|
if (i >= adds.Length)
|
|
break;
|
|
|
|
int.TryParse(adds[i], out var sound);
|
|
nodeSoundTypes[i] = (LegacyHitSoundType)sound;
|
|
}
|
|
}
|
|
|
|
// Generate the final per-node samples
|
|
var nodeSamples = new List<IList<HitSampleInfo>>(nodes);
|
|
for (int i = 0; i < nodes; i++)
|
|
nodeSamples.Add(convertSoundType(nodeSoundTypes[i], nodeBankInfos[i]));
|
|
|
|
result = CreateSlider(pos, combo, comboOffset, convertControlPoints(points, pathType), length, repeatCount, nodeSamples);
|
|
|
|
// The samples are played when the slider ends, which is the last node
|
|
result.Samples = nodeSamples[^1];
|
|
}
|
|
else if (type.HasFlag(LegacyHitObjectType.Spinner))
|
|
{
|
|
double duration = Math.Max(0, Parsing.ParseDouble(split[5]) + Offset - startTime);
|
|
|
|
result = CreateSpinner(new Vector2(512, 384) / 2, combo, comboOffset, duration);
|
|
|
|
if (split.Length > 6)
|
|
readCustomSampleBanks(split[6], bankInfo);
|
|
}
|
|
else if (type.HasFlag(LegacyHitObjectType.Hold))
|
|
{
|
|
// Note: Hold is generated by BMS converts
|
|
|
|
double endTime = Math.Max(startTime, Parsing.ParseDouble(split[2]));
|
|
|
|
if (split.Length > 5 && !string.IsNullOrEmpty(split[5]))
|
|
{
|
|
string[] ss = split[5].Split(':');
|
|
endTime = Math.Max(startTime, Parsing.ParseDouble(ss[0]));
|
|
readCustomSampleBanks(string.Join(":", ss.Skip(1)), bankInfo);
|
|
}
|
|
|
|
result = CreateHold(pos, combo, comboOffset, endTime + Offset - startTime);
|
|
}
|
|
|
|
if (result == null)
|
|
throw new InvalidDataException($"Unknown hit object type: {split[3]}");
|
|
|
|
result.StartTime = startTime;
|
|
|
|
if (result.Samples.Count == 0)
|
|
result.Samples = convertSoundType(soundType, bankInfo);
|
|
|
|
FirstObject = false;
|
|
|
|
return result;
|
|
}
|
|
|
|
private void readCustomSampleBanks(string str, SampleBankInfo bankInfo)
|
|
{
|
|
if (string.IsNullOrEmpty(str))
|
|
return;
|
|
|
|
string[] split = str.Split(':');
|
|
|
|
var bank = (LegacySampleBank)Parsing.ParseInt(split[0]);
|
|
var addbank = (LegacySampleBank)Parsing.ParseInt(split[1]);
|
|
|
|
string stringBank = bank.ToString().ToLowerInvariant();
|
|
if (stringBank == @"none")
|
|
stringBank = null;
|
|
string stringAddBank = addbank.ToString().ToLowerInvariant();
|
|
if (stringAddBank == @"none")
|
|
stringAddBank = null;
|
|
|
|
bankInfo.Normal = stringBank;
|
|
bankInfo.Add = string.IsNullOrEmpty(stringAddBank) ? stringBank : stringAddBank;
|
|
|
|
if (split.Length > 2)
|
|
bankInfo.CustomSampleBank = Parsing.ParseInt(split[2]);
|
|
|
|
if (split.Length > 3)
|
|
bankInfo.Volume = Math.Max(0, Parsing.ParseInt(split[3]));
|
|
|
|
bankInfo.Filename = split.Length > 4 ? split[4] : null;
|
|
}
|
|
|
|
private PathControlPoint[] convertControlPoints(Vector2[] vertices, PathType type)
|
|
{
|
|
if (type == PathType.PerfectCurve)
|
|
{
|
|
if (vertices.Length != 3)
|
|
type = PathType.Bezier;
|
|
else if (isLinear(vertices))
|
|
{
|
|
// osu-stable special-cased colinear perfect curves to a linear path
|
|
type = PathType.Linear;
|
|
}
|
|
}
|
|
|
|
var points = new List<PathControlPoint>(vertices.Length)
|
|
{
|
|
new PathControlPoint
|
|
{
|
|
Position = { Value = vertices[0] },
|
|
Type = { Value = type }
|
|
}
|
|
};
|
|
|
|
for (int i = 1; i < vertices.Length; i++)
|
|
{
|
|
if (vertices[i] == vertices[i - 1])
|
|
{
|
|
points[^1].Type.Value = type;
|
|
continue;
|
|
}
|
|
|
|
points.Add(new PathControlPoint { Position = { Value = vertices[i] } });
|
|
}
|
|
|
|
return points.ToArray();
|
|
|
|
static bool isLinear(Vector2[] p) => Precision.AlmostEquals(0, (p[1].Y - p[0].Y) * (p[2].X - p[0].X) - (p[1].X - p[0].X) * (p[2].Y - p[0].Y));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates a legacy Hit-type hit object.
|
|
/// </summary>
|
|
/// <param name="position">The position of the hit object.</param>
|
|
/// <param name="newCombo">Whether the hit object creates a new combo.</param>
|
|
/// <param name="comboOffset">When starting a new combo, the offset of the new combo relative to the current one.</param>
|
|
/// <returns>The hit object.</returns>
|
|
protected abstract HitObject CreateHit(Vector2 position, bool newCombo, int comboOffset);
|
|
|
|
/// <summary>
|
|
/// Creats a legacy Slider-type hit object.
|
|
/// </summary>
|
|
/// <param name="position">The position of the hit object.</param>
|
|
/// <param name="newCombo">Whether the hit object creates a new combo.</param>
|
|
/// <param name="comboOffset">When starting a new combo, the offset of the new combo relative to the current one.</param>
|
|
/// <param name="controlPoints">The slider control points.</param>
|
|
/// <param name="length">The slider length.</param>
|
|
/// <param name="repeatCount">The slider repeat count.</param>
|
|
/// <param name="nodeSamples">The samples to be played when the slider nodes are hit. This includes the head and tail of the slider.</param>
|
|
/// <returns>The hit object.</returns>
|
|
protected abstract HitObject CreateSlider(Vector2 position, bool newCombo, int comboOffset, PathControlPoint[] controlPoints, double? length, int repeatCount,
|
|
List<IList<HitSampleInfo>> nodeSamples);
|
|
|
|
/// <summary>
|
|
/// Creates a legacy Spinner-type hit object.
|
|
/// </summary>
|
|
/// <param name="position">The position of the hit object.</param>
|
|
/// <param name="newCombo">Whether the hit object creates a new combo.</param>
|
|
/// <param name="comboOffset">When starting a new combo, the offset of the new combo relative to the current one.</param>
|
|
/// <param name="duration">The spinner duration.</param>
|
|
/// <returns>The hit object.</returns>
|
|
protected abstract HitObject CreateSpinner(Vector2 position, bool newCombo, int comboOffset, double duration);
|
|
|
|
/// <summary>
|
|
/// Creates a legacy Hold-type hit object.
|
|
/// </summary>
|
|
/// <param name="position">The position of the hit object.</param>
|
|
/// <param name="newCombo">Whether the hit object creates a new combo.</param>
|
|
/// <param name="comboOffset">When starting a new combo, the offset of the new combo relative to the current one.</param>
|
|
/// <param name="duration">The hold duration.</param>
|
|
protected abstract HitObject CreateHold(Vector2 position, bool newCombo, int comboOffset, double duration);
|
|
|
|
private List<HitSampleInfo> convertSoundType(LegacyHitSoundType type, SampleBankInfo bankInfo)
|
|
{
|
|
// Todo: This should return the normal SampleInfos if the specified sample file isn't found, but that's a pretty edge-case scenario
|
|
if (!string.IsNullOrEmpty(bankInfo.Filename))
|
|
{
|
|
return new List<HitSampleInfo>
|
|
{
|
|
new FileHitSampleInfo
|
|
{
|
|
Filename = bankInfo.Filename,
|
|
Volume = bankInfo.Volume
|
|
}
|
|
};
|
|
}
|
|
|
|
var soundTypes = new List<HitSampleInfo>
|
|
{
|
|
new LegacyHitSampleInfo
|
|
{
|
|
Bank = bankInfo.Normal,
|
|
Name = HitSampleInfo.HIT_NORMAL,
|
|
Volume = bankInfo.Volume,
|
|
CustomSampleBank = bankInfo.CustomSampleBank
|
|
}
|
|
};
|
|
|
|
if (type.HasFlag(LegacyHitSoundType.Finish))
|
|
{
|
|
soundTypes.Add(new LegacyHitSampleInfo
|
|
{
|
|
Bank = bankInfo.Add,
|
|
Name = HitSampleInfo.HIT_FINISH,
|
|
Volume = bankInfo.Volume,
|
|
CustomSampleBank = bankInfo.CustomSampleBank
|
|
});
|
|
}
|
|
|
|
if (type.HasFlag(LegacyHitSoundType.Whistle))
|
|
{
|
|
soundTypes.Add(new LegacyHitSampleInfo
|
|
{
|
|
Bank = bankInfo.Add,
|
|
Name = HitSampleInfo.HIT_WHISTLE,
|
|
Volume = bankInfo.Volume,
|
|
CustomSampleBank = bankInfo.CustomSampleBank
|
|
});
|
|
}
|
|
|
|
if (type.HasFlag(LegacyHitSoundType.Clap))
|
|
{
|
|
soundTypes.Add(new LegacyHitSampleInfo
|
|
{
|
|
Bank = bankInfo.Add,
|
|
Name = HitSampleInfo.HIT_CLAP,
|
|
Volume = bankInfo.Volume,
|
|
CustomSampleBank = bankInfo.CustomSampleBank
|
|
});
|
|
}
|
|
|
|
return soundTypes;
|
|
}
|
|
|
|
private class SampleBankInfo
|
|
{
|
|
public string Filename;
|
|
|
|
public string Normal;
|
|
public string Add;
|
|
public int Volume;
|
|
|
|
public int CustomSampleBank;
|
|
|
|
public SampleBankInfo Clone() => (SampleBankInfo)MemberwiseClone();
|
|
}
|
|
|
|
internal class LegacyHitSampleInfo : HitSampleInfo
|
|
{
|
|
private int customSampleBank;
|
|
|
|
public int CustomSampleBank
|
|
{
|
|
get => customSampleBank;
|
|
set
|
|
{
|
|
customSampleBank = value;
|
|
|
|
if (value >= 2)
|
|
Suffix = value.ToString();
|
|
}
|
|
}
|
|
}
|
|
|
|
private class FileHitSampleInfo : LegacyHitSampleInfo
|
|
{
|
|
public string Filename;
|
|
|
|
public FileHitSampleInfo()
|
|
{
|
|
// Make sure that the LegacyBeatmapSkin does not fall back to the user skin.
|
|
// Note that this does not change the lookup names, as they are overridden locally.
|
|
CustomSampleBank = 1;
|
|
}
|
|
|
|
public override IEnumerable<string> LookupNames => new[]
|
|
{
|
|
Filename,
|
|
Path.ChangeExtension(Filename, null)
|
|
};
|
|
}
|
|
}
|
|
}
|