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Code Issues Releases Wiki Activity

Add legacy timing offsets

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These have been in release builds since January, but implemented in a hacky way.

This brings them with a sane implementation.
This commit is contained in:
Dean Herbert 2018-03-04 21:57:24 +09:00
parent d3092a3003
commit bc0bc8d459
1 changed files with 22 additions and 4 deletions
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26
osu.Game/Beatmaps/Formats/LegacyBeatmapDecoder.cs
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@ -8,6 +8,7 @@ using OpenTK.Graphics;
using osu.Game.Beatmaps.Timing;
using osu.Game.Rulesets.Objects.Legacy;
using osu.Game.Beatmaps.ControlPoints;
using osu.Framework;
namespace osu.Game.Beatmaps.Formats
{
@ -21,6 +22,8 @@ namespace osu.Game.Beatmaps.Formats
private LegacySampleBank defaultSampleBank;
private int defaultSampleVolume = 100;
private readonly int timeOffset;
public LegacyBeatmapDecoder()
{
}
@ -28,6 +31,14 @@ namespace osu.Game.Beatmaps.Formats
public LegacyBeatmapDecoder(string header)
{
BeatmapVersion = int.Parse(header.Substring(17));
// BeatmapVersion 4 and lower had an incorrect offset (stable has this set as 24ms off)
timeOffset += BeatmapVersion < 5 ? 24 : 0;
// lazer in general doesn't match stable. this is the result of user testing, albeit limited.
// only seems to be required on windows.
if (RuntimeInfo.OS == RuntimeInfo.Platform.Windows)
timeOffset += -22;
}
protected override void ParseBeatmap(StreamReader stream, Beatmap beatmap)
@ -102,7 +113,7 @@ namespace osu.Game.Beatmaps.Formats
beatmap.BeatmapInfo.AudioLeadIn = int.Parse(pair.Value);
break;
case @"PreviewTime":
metadata.PreviewTime = int.Parse(pair.Value);
metadata.PreviewTime = getOffsetTime(int.Parse(pair.Value));
break;
case @"Countdown":
beatmap.BeatmapInfo.Countdown = int.Parse(pair.Value) == 1;
@ -257,8 +268,8 @@ namespace osu.Game.Beatmaps.Formats
case EventType.Break:
var breakEvent = new BreakPeriod
{
StartTime = double.Parse(split[1], NumberFormatInfo.InvariantInfo),
EndTime = double.Parse(split[2], NumberFormatInfo.InvariantInfo)
StartTime = getOffsetTime(double.Parse(split[1], NumberFormatInfo.InvariantInfo)),
EndTime = getOffsetTime(double.Parse(split[2], NumberFormatInfo.InvariantInfo))
};
if (!breakEvent.HasEffect)
@ -273,7 +284,7 @@ namespace osu.Game.Beatmaps.Formats
{
string[] split = line.Split(',');
double time = double.Parse(split[0].Trim(), NumberFormatInfo.InvariantInfo);
double time = getOffsetTime(double.Parse(split[0].Trim(), NumberFormatInfo.InvariantInfo));
double beatLength = double.Parse(split[1].Trim(), NumberFormatInfo.InvariantInfo);
double speedMultiplier = beatLength < 0 ? 100.0 / -beatLength : 1;
@ -396,7 +407,14 @@ namespace osu.Game.Beatmaps.Formats
var obj = parser.Parse(line);
if (obj != null)
{
obj.StartTime = getOffsetTime(obj.StartTime);
beatmap.HitObjects.Add(obj);
}
}
private int getOffsetTime(int time) => time + timeOffset;
private double getOffsetTime(double time) => time + timeOffset;
}
}