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Merge pull request #15666 from MBmasher/fl-slider

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Add slider bonus to Flashlight skill
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Dan Balasescu 2022-08-11 13:42:31 +09:00 committed by GitHub
commit 65a1daf211
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 39 additions and 12 deletions
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2
osu.Game.Rulesets.Osu/Difficulty/Evaluators/AimEvaluator.cs
View File

@ -114,7 +114,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
velocityChangeBonus *= Math.Pow(Math.Min(osuCurrObj.StrainTime, osuLastObj.StrainTime) / Math.Max(osuCurrObj.StrainTime, osuLastObj.StrainTime), 2);
}
if (osuLastObj.TravelTime != 0)
if (osuLastObj.BaseObject is Slider)
{
// Reward sliders based on velocity.
sliderBonus = osuLastObj.TravelDistance / osuLastObj.TravelTime;

26
osu.Game.Rulesets.Osu/Difficulty/Evaluators/FlashlightEvaluator.cs
View File

@ -15,11 +15,15 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
private const double max_opacity_bonus = 0.4;
private const double hidden_bonus = 0.2;
private const double min_velocity = 0.5;
private const double slider_multiplier = 1.3;
/// <summary>
/// Evaluates the difficulty of memorising and hitting an object, based on:
/// <list type="bullet">
/// <item><description>distance between the previous and current object,</description></item>
/// <item><description>distance between a number of previous objects and the current object,</description></item>
/// <item><description>the visual opacity of the current object,</description></item>
/// <item><description>length and speed of the current object (for sliders),</description></item>
/// <item><description>and whether the hidden mod is enabled.</description></item>
/// </list>
/// </summary>
@ -73,6 +77,26 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Evaluators
if (hidden)
result *= 1.0 + hidden_bonus;
double sliderBonus = 0.0;
if (osuCurrent.BaseObject is Slider osuSlider)
{
// Invert the scaling factor to determine the true travel distance independent of circle size.
double pixelTravelDistance = osuSlider.LazyTravelDistance / scalingFactor;
// Reward sliders based on velocity.
sliderBonus = Math.Pow(Math.Max(0.0, pixelTravelDistance / osuCurrent.TravelTime - min_velocity), 0.5);
// Longer sliders require more memorisation.
sliderBonus *= pixelTravelDistance;
// Nerf sliders with repeats, as less memorisation is required.
if (osuSlider.RepeatCount > 0)
sliderBonus /= (osuSlider.RepeatCount + 1);
}
result += sliderBonus * slider_multiplier;
return result;
}
}

23
osu.Game.Rulesets.Osu/Difficulty/Preprocessing/OsuDifficultyHitObject.cs
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@ -15,10 +15,14 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
{
public class OsuDifficultyHitObject : DifficultyHitObject
{
private const int normalised_radius = 50; // Change radius to 50 to make 100 the diameter. Easier for mental maths.
/// <summary>
/// A distance by which all distances should be scaled in order to assume a uniform circle size.
/// </summary>
public const int NORMALISED_RADIUS = 50; // Change radius to 50 to make 100 the diameter. Easier for mental maths.
private const int min_delta_time = 25;
private const float maximum_slider_radius = normalised_radius * 2.4f;
private const float assumed_slider_radius = normalised_radius * 1.8f;
private const float maximum_slider_radius = NORMALISED_RADIUS * 2.4f;
private const float assumed_slider_radius = NORMALISED_RADIUS * 1.8f;
protected new OsuHitObject BaseObject => (OsuHitObject)base.BaseObject;
@ -64,7 +68,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
public double TravelDistance { get; private set; }
/// <summary>
/// The time taken to travel through <see cref="TravelDistance"/>, with a minimum value of 25ms for a non-zero distance.
/// The time taken to travel through <see cref="TravelDistance"/>, with a minimum value of 25ms for <see cref="Slider"/> objects.
/// </summary>
public double TravelTime { get; private set; }
@ -123,7 +127,8 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
if (BaseObject is Slider currentSlider)
{
computeSliderCursorPosition(currentSlider);
TravelDistance = currentSlider.LazyTravelDistance;
// Bonus for repeat sliders until a better per nested object strain system can be achieved.
TravelDistance = currentSlider.LazyTravelDistance * (float)Math.Pow(1 + currentSlider.RepeatCount / 2.5, 1.0 / 2.5);
TravelTime = Math.Max(currentSlider.LazyTravelTime / clockRate, min_delta_time);
}
@ -132,7 +137,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
return;
// We will scale distances by this factor, so we can assume a uniform CircleSize among beatmaps.
float scalingFactor = normalised_radius / (float)BaseObject.Radius;
float scalingFactor = NORMALISED_RADIUS / (float)BaseObject.Radius;
if (BaseObject.Radius < 30)
{
@ -206,7 +211,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
slider.LazyEndPosition = slider.StackedPosition + slider.Path.PositionAt(endTimeMin); // temporary lazy end position until a real result can be derived.
var currCursorPosition = slider.StackedPosition;
double scalingFactor = normalised_radius / slider.Radius; // lazySliderDistance is coded to be sensitive to scaling, this makes the maths easier with the thresholds being used.
double scalingFactor = NORMALISED_RADIUS / slider.Radius; // lazySliderDistance is coded to be sensitive to scaling, this makes the maths easier with the thresholds being used.
for (int i = 1; i < slider.NestedHitObjects.Count; i++)
{
@ -234,7 +239,7 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
else if (currMovementObj is SliderRepeat)
{
// For a slider repeat, assume a tighter movement threshold to better assess repeat sliders.
requiredMovement = normalised_radius;
requiredMovement = NORMALISED_RADIUS;
}
if (currMovementLength > requiredMovement)
@ -248,8 +253,6 @@ namespace osu.Game.Rulesets.Osu.Difficulty.Preprocessing
if (i == slider.NestedHitObjects.Count - 1)
slider.LazyEndPosition = currCursorPosition;
}
slider.LazyTravelDistance *= (float)Math.Pow(1 + slider.RepeatCount / 2.5, 1.0 / 2.5); // Bonus for repeat sliders until a better per nested object strain system can be achieved.
}
private Vector2 getEndCursorPosition(OsuHitObject hitObject)