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Expose current strain and retrieval of peak strain

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This commit is contained in:
smoogipoo 2020-10-09 21:42:43 +09:00
parent da03084251
commit 485a951281
1 changed files with 18 additions and 7 deletions
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25
osu.Game/Rulesets/Difficulty/Skills/Skill.cs
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@ -41,7 +41,11 @@ namespace osu.Game.Rulesets.Difficulty.Skills
/// </summary>
protected readonly LimitedCapacityStack<DifficultyHitObject> Previous = new LimitedCapacityStack<DifficultyHitObject>(2); // Contained objects not used yet
private double currentStrain = 1; // We keep track of the strain level at all times throughout the beatmap.
/// <summary>
/// The current strain level.
/// </summary>
protected double CurrentStrain { get; private set; } = 1;
private double currentSectionPeak = 1; // We also keep track of the peak strain level in the current section.
private readonly List<double> strainPeaks = new List<double>();
@ -51,10 +55,10 @@ namespace osu.Game.Rulesets.Difficulty.Skills
/// </summary>
public void Process(DifficultyHitObject current)
{
currentStrain *= strainDecay(current.DeltaTime);
currentStrain += StrainValueOf(current) * SkillMultiplier;
CurrentStrain *= strainDecay(current.DeltaTime);
CurrentStrain += StrainValueOf(current) * SkillMultiplier;
currentSectionPeak = Math.Max(currentStrain, currentSectionPeak);
currentSectionPeak = Math.Max(CurrentStrain, currentSectionPeak);
Previous.Push(current);
}
@ -71,15 +75,22 @@ namespace osu.Game.Rulesets.Difficulty.Skills
/// <summary>
/// Sets the initial strain level for a new section.
/// </summary>
/// <param name="offset">The beginning of the new section in milliseconds.</param>
public void StartNewSectionFrom(double offset)
/// <param name="time">The beginning of the new section in milliseconds.</param>
public void StartNewSectionFrom(double time)
{
// The maximum strain of the new section is not zero by default, strain decays as usual regardless of section boundaries.
// This means we need to capture the strain level at the beginning of the new section, and use that as the initial peak level.
if (Previous.Count > 0)
currentSectionPeak = currentStrain * strainDecay(offset - Previous[0].BaseObject.StartTime);
currentSectionPeak = GetPeakStrain(time);
}
/// <summary>
/// Retrieves the peak strain at a point in time.
/// </summary>
/// <param name="time">The time to retrieve the peak strain at.</param>
/// <returns>The peak strain.</returns>
protected virtual double GetPeakStrain(double time) => CurrentStrain * strainDecay(time - Previous[0].BaseObject.StartTime);
/// <summary>
/// Returns the calculated difficulty value representing all processed <see cref="DifficultyHitObject"/>s.
/// </summary>