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Code Issues Releases Wiki Activity

Replace List<ControlPoint> with TimingInfo in Beatmap.

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This commit is contained in:
smoogipooo 2017-03-16 17:11:24 +09:00
parent a7ba6bbcfe
commit 5137338c7c
7 changed files with 140 additions and 45 deletions
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2
osu.Game.Modes.Osu/Objects/Slider.cs
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@ -54,7 +54,7 @@ namespace osu.Game.Modes.Osu.Objects
var baseDifficulty = beatmap.BeatmapInfo.BaseDifficulty;
ControlPoint overridePoint;
ControlPoint timingPoint = beatmap.TimingPointAt(StartTime, out overridePoint);
ControlPoint timingPoint = beatmap.TimingInfo.TimingPointAt(StartTime, out overridePoint);
var velocityAdjustment = overridePoint?.VelocityAdjustment ?? 1;
var baseVelocity = 100 * baseDifficulty.SliderMultiplier / velocityAdjustment;

66
osu.Game/Beatmaps/Beatmap.cs
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@ -7,7 +7,6 @@ using osu.Game.Database;
using osu.Game.Modes;
using osu.Game.Modes.Objects;
using System.Collections.Generic;
using System.Linq;
namespace osu.Game.Beatmaps
{
@ -18,7 +17,7 @@ namespace osu.Game.Beatmaps
where T : HitObject
{
public BeatmapInfo BeatmapInfo;
public List<ControlPoint> ControlPoints;
public TimingInfo TimingInfo = new TimingInfo();
public readonly List<Color4> ComboColors = new List<Color4>
{
new Color4(17, 136, 170, 255),
@ -41,49 +40,40 @@ namespace osu.Game.Beatmaps
public Beatmap(Beatmap original = null)
{
BeatmapInfo = original?.BeatmapInfo ?? BeatmapInfo;
ControlPoints = original?.ControlPoints ?? ControlPoints;
TimingInfo = original?.TimingInfo ?? TimingInfo;
ComboColors = original?.ComboColors ?? ComboColors;
}
public double BPMMaximum => 60000 / (ControlPoints?.Where(c => c.BeatLength != 0).OrderBy(c => c.BeatLength).FirstOrDefault() ?? ControlPoint.Default).BeatLength;
public double BPMMinimum => 60000 / (ControlPoints?.Where(c => c.BeatLength != 0).OrderByDescending(c => c.BeatLength).FirstOrDefault() ?? ControlPoint.Default).BeatLength;
public double BPMMode => BPMAt(ControlPoints.Where(c => c.BeatLength != 0).GroupBy(c => c.BeatLength).OrderByDescending(grp => grp.Count()).First().First().Time);
public double BPMAt(double time)
/// <summary>
/// Finds the slider velocity at a time.
/// </summary>
/// <param name="time">The time to find the slider velocity at.</param>
/// <returns>The slider velocity in positional length units.</returns>
public double SliderVelocityAt(double time)
{
return 60000 / BeatLengthAt(time);
double scoringDistance = 100 * BeatmapInfo.BaseDifficulty.SliderMultiplier;
double beatDistance = TimingInfo.BeatDistanceAt(time);
if (beatDistance > 0)
return scoringDistance / beatDistance * 1000;
return scoringDistance;
}
public double BeatLengthAt(double time)
/// <summary>
/// Maps a difficulty value [0, 10] to a two-piece linear range of values.
/// </summary>
/// <param name="difficulty">The difficulty value to be mapped.</param>
/// <param name="min">Minimum of the resulting range which will be achieved by a difficulty value of 0.</param>
/// <param name="mid">Midpoint of the resulting range which will be achieved by a difficulty value of 5.</param>
/// <param name="max">Maximum of the resulting range which will be achieved by a difficulty value of 10.</param>
/// <returns>Value to which the difficulty value maps in the specified range.</returns>
public static double MapDifficultyRange(double difficulty, double min, double mid, double max)
{
ControlPoint overridePoint;
ControlPoint timingPoint = TimingPointAt(time, out overridePoint);
return timingPoint.BeatLength;
}
public ControlPoint TimingPointAt(double time, out ControlPoint overridePoint)
{
overridePoint = null;
ControlPoint timingPoint = null;
foreach (var controlPoint in ControlPoints)
{
// Some beatmaps have the first timingPoint (accidentally) start after the first HitObject(s).
// This null check makes it so that the first ControlPoint that makes a timing change is used as
// the timingPoint for those HitObject(s).
if (controlPoint.Time <= time || timingPoint == null)
{
if (controlPoint.TimingChange)
{
timingPoint = controlPoint;
overridePoint = null;
}
else overridePoint = controlPoint;
}
else break;
}
return timingPoint ?? ControlPoint.Default;
if (difficulty > 5)
return mid + (max - mid) * (difficulty - 5) / 5;
if (difficulty < 5)
return mid - (mid - min) * (5 - difficulty) / 5;
return mid;
}
}

2
osu.Game/Beatmaps/Formats/BeatmapDecoder.cs
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@ -5,7 +5,6 @@ using System;
using System.Collections.Generic;
using System.IO;
using osu.Game.Modes.Objects;
using osu.Game.Beatmaps.Timing;
using osu.Game.Database;
namespace osu.Game.Beatmaps.Formats
@ -43,7 +42,6 @@ namespace osu.Game.Beatmaps.Formats
var beatmap = new Beatmap
{
HitObjects = new List<HitObject>(),
ControlPoints = new List<ControlPoint>(),
BeatmapInfo = new BeatmapInfo
{
Metadata = new BeatmapMetadata(),

2
osu.Game/Beatmaps/Formats/OsuLegacyDecoder.cs
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@ -209,7 +209,7 @@ namespace osu.Game.Beatmaps.Formats
}
if (cp != null)
beatmap.ControlPoints.Add(cp);
beatmap.TimingInfo.ControlPoints.Add(cp);
}
private void handleColours(Beatmap beatmap, string key, string val, ref bool hasCustomColours)

106
osu.Game/Beatmaps/Timing/TimingInfo.cs Normal file
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@ -0,0 +1,106 @@
// 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.Collections.Generic;
using System.Linq;
namespace osu.Game.Beatmaps.Timing
{
public class TimingInfo
{
public readonly List<ControlPoint> ControlPoints = new List<ControlPoint>();
public double BPMMaximum => 60000 / (ControlPoints?.Where(c => c.BeatLength != 0).OrderBy(c => c.BeatLength).FirstOrDefault() ?? ControlPoint.Default).BeatLength;
public double BPMMinimum => 60000 / (ControlPoints?.Where(c => c.BeatLength != 0).OrderByDescending(c => c.BeatLength).FirstOrDefault() ?? ControlPoint.Default).BeatLength;
public double BPMMode => BPMAt(ControlPoints.Where(c => c.BeatLength != 0).GroupBy(c => c.BeatLength).OrderByDescending(grp => grp.Count()).First().First().Time);
public double BPMAt(double time)
{
return 60000 / BeatLengthAt(time);
}
/// <summary>
/// Finds the BPM multiplier at a time.
/// </summary>
/// <param name="time">The time to find the BPM multiplier at.</param>
/// <returns>The BPM multiplier.</returns>
public double BPMMultiplierAt(double time)
{
ControlPoint overridePoint;
ControlPoint timingPoint = TimingPointAt(time, out overridePoint);
return overridePoint?.VelocityAdjustment ?? timingPoint?.VelocityAdjustment ?? 1;
}
/// <summary>
/// Finds the beat length at a time.
/// </summary>
/// <param name="time">The time to find the beat length at.</param>
/// <returns>The beat length in milliseconds.</returns>
public double BeatLengthAt(double time)
{
ControlPoint overridePoint;
ControlPoint timingPoint = TimingPointAt(time, out overridePoint);
return timingPoint.BeatLength;
}
/// <summary>
/// Finds the beat velocity at a time.
/// </summary>
/// <param name="time">The time to find the velocity at.</param>
/// <returns>The velocity.</returns>
public double BeatVelocityAt(double time)
{
ControlPoint overridePoint;
ControlPoint timingPoint = TimingPointAt(time, out overridePoint);
return overridePoint?.VelocityAdjustment ?? timingPoint?.VelocityAdjustment ?? 1;
}
/// <summary>
/// Finds the beat length at a time.
/// </summary>
/// <param name="time">The time to find the beat length at.</param>
/// <returns>The beat length in positional length units.</returns>
public double BeatDistanceAt(double time)
{
ControlPoint overridePoint;
ControlPoint timingPoint = TimingPointAt(time, out overridePoint);
return (timingPoint?.BeatLength ?? 1) * (overridePoint?.VelocityAdjustment ?? timingPoint?.VelocityAdjustment ?? 1);
}
/// <summary>
/// Finds the timing point at a time.
/// </summary>
/// <param name="time">The time to find the timing point at.</param>
/// <param name="overridePoint">The timing point containing the velocity change of the returned timing point.</param>
/// <returns>The timing point.</returns>
public ControlPoint TimingPointAt(double time, out ControlPoint overridePoint)
{
overridePoint = null;
ControlPoint timingPoint = null;
foreach (var controlPoint in ControlPoints)
{
// Some beatmaps have the first timingPoint (accidentally) start after the first HitObject(s).
// This null check makes it so that the first ControlPoint that makes a timing change is used as
// the timingPoint for those HitObject(s).
if (controlPoint.Time <= time || timingPoint == null)
{
if (controlPoint.TimingChange)
{
timingPoint = controlPoint;
overridePoint = null;
}
else
overridePoint = controlPoint;
}
else break;
}
return timingPoint ?? ControlPoint.Default;
}
}
}

6
osu.Game/Screens/Select/BeatmapInfoWedge.cs
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@ -217,12 +217,12 @@ namespace osu.Game.Screens.Select
private string getBPMRange(Beatmap beatmap)
{
double bpmMax = beatmap.BPMMaximum;
double bpmMin = beatmap.BPMMinimum;
double bpmMax = beatmap.TimingInfo.BPMMaximum;
double bpmMin = beatmap.TimingInfo.BPMMinimum;
if (Precision.AlmostEquals(bpmMin, bpmMax)) return Math.Round(bpmMin) + "bpm";
return Math.Round(bpmMin) + "-" + Math.Round(bpmMax) + "bpm (mostly " + Math.Round(beatmap.BPMMode) + "bpm)";
return Math.Round(bpmMin) + "-" + Math.Round(bpmMax) + "bpm (mostly " + Math.Round(beatmap.TimingInfo.BPMMode) + "bpm)";
}
public class InfoLabel : Container

1
osu.Game/osu.Game.csproj
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@ -75,6 +75,7 @@
<Compile Include="Beatmaps\DifficultyCalculator.cs" />
<Compile Include="Beatmaps\IBeatmapCoverter.cs" />
<Compile Include="Beatmaps\IBeatmapProcessor.cs" />
<Compile Include="Beatmaps\Timing\TimingInfo.cs" />
<Compile Include="Database\ScoreDatabase.cs" />
<Compile Include="Graphics\Backgrounds\Triangles.cs" />
<Compile Include="Graphics\Cursor\CursorTrail.cs" />