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Code Issues Releases Wiki Activity

Provide a way to scale beat lengths relative to each other

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This commit is contained in:
smoogipoo 2019-08-26 12:51:13 +09:00
parent 7fd63b39fe
commit d99c60adc7
2 changed files with 37 additions and 9 deletions
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8
osu.Game/Rulesets/Timing/MultiplierControlPoint.cs
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@ -20,7 +20,13 @@ namespace osu.Game.Rulesets.Timing
/// <summary>
/// The aggregate multiplier which this <see cref="MultiplierControlPoint"/> provides.
/// </summary>
public double Multiplier => Velocity * DifficultyPoint.SpeedMultiplier * 1000 / TimingPoint.BeatLength;
public double Multiplier => Velocity * DifficultyPoint.SpeedMultiplier * BaseBeatLength / TimingPoint.BeatLength;
/// <summary>
/// The base beat length to scale the <see cref="TimingPoint"/> provided multiplier relative to.
/// </summary>
/// <example>For a <see cref="BaseBeatLength"/> of 1000, a <see cref="TimingPoint"/> with a beat length of 500 will increase the multiplier by 2.</example>
public double BaseBeatLength = 1000;
/// <summary>
/// The velocity multiplier.

38
osu.Game/Rulesets/UI/Scrolling/DrawableScrollingRuleset.cs
View File

@ -69,6 +69,11 @@ namespace osu.Game.Rulesets.UI.Scrolling
/// </summary>
protected virtual bool UserScrollSpeedAdjustment => true;
/// <summary>
/// Whether <see cref="TimingControlPoint"/> beat lengths should scale relative to the most common beat length in the <see cref="Beatmap"/>.
/// </summary>
protected virtual bool RelativeScaleBeatLengths => false;
/// <summary>
/// Provides the default <see cref="MultiplierControlPoint"/>s that adjust the scrolling rate of <see cref="HitObject"/>s
/// inside this <see cref="DrawableRuleset{TObject}"/>.
@ -107,16 +112,35 @@ namespace osu.Game.Rulesets.UI.Scrolling
[BackgroundDependencyLoader]
private void load()
{
// Calculate default multiplier control points
double lastObjectTime = (Objects.LastOrDefault() as IHasEndTime)?.EndTime ?? Objects.LastOrDefault()?.StartTime ?? double.MaxValue;
double baseBeatLength = 1000;
if (RelativeScaleBeatLengths)
{
IReadOnlyList<TimingControlPoint> timingPoints = Beatmap.ControlPointInfo.TimingPoints;
double maxDuration = 0;
for (int i = 0; i < timingPoints.Count; i++)
{
double endTime = i < timingPoints.Count - 1 ? timingPoints[i + 1].Time : lastObjectTime;
double duration = endTime - timingPoints[i].Time;
if (duration > maxDuration)
{
maxDuration = duration;
baseBeatLength = timingPoints[i].BeatLength;
}
}
}
// Merge sequences of timing and difficulty control points to create the aggregate "multiplier" control point
var lastTimingPoint = new TimingControlPoint();
var lastDifficultyPoint = new DifficultyControlPoint();
// Merge timing + difficulty points
var allPoints = new SortedList<ControlPoint>(Comparer<ControlPoint>.Default);
allPoints.AddRange(Beatmap.ControlPointInfo.TimingPoints);
allPoints.AddRange(Beatmap.ControlPointInfo.DifficultyPoints);
// Generate the timing points, making non-timing changes use the previous timing change
// Generate the timing points, making non-timing changes use the previous timing change and vice-versa
var timingChanges = allPoints.Select(c =>
{
var timingPoint = c as TimingControlPoint;
@ -131,14 +155,13 @@ namespace osu.Game.Rulesets.UI.Scrolling
return new MultiplierControlPoint(c.Time)
{
Velocity = Beatmap.BeatmapInfo.BaseDifficulty.SliderMultiplier,
BaseBeatLength = baseBeatLength,
TimingPoint = lastTimingPoint,
DifficultyPoint = lastDifficultyPoint
};
});
double lastObjectTime = (Objects.LastOrDefault() as IHasEndTime)?.EndTime ?? Objects.LastOrDefault()?.StartTime ?? double.MaxValue;
// Perform some post processing of the timing changes
// Trim unwanted sequences of timing changes
timingChanges = timingChanges
// Collapse sections after the last hit object
.Where(s => s.StartTime <= lastObjectTime)
@ -147,7 +170,6 @@ namespace osu.Game.Rulesets.UI.Scrolling
controlPoints.AddRange(timingChanges);
// If we have no control points, add a default one
if (controlPoints.Count == 0)
controlPoints.Add(new MultiplierControlPoint { Velocity = Beatmap.BeatmapInfo.BaseDifficulty.SliderMultiplier });
}