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osu-lazer/osu.Game.Rulesets.Taiko/Mods/TaikoModHidden.cs
2021-08-02 20:38:49 +09:00

66 lines
2.6 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using osu.Framework.Graphics;
using osu.Game.Beatmaps;
using osu.Game.Beatmaps.ControlPoints;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Drawables;
using osu.Game.Rulesets.Scoring;
using osu.Game.Rulesets.Taiko.Objects.Drawables;
namespace osu.Game.Rulesets.Taiko.Mods
{
public class TaikoModHidden : ModHidden
{
public override string Description => @"Beats fade out before you hit them!";
public override double ScoreMultiplier => 1.06;
private ControlPointInfo controlPointInfo;
protected override void ApplyIncreasedVisibilityState(DrawableHitObject hitObject, ArmedState state)
{
ApplyNormalVisibilityState(hitObject, state);
}
protected double MultiplierAt(double position)
{
double beatLength = controlPointInfo.TimingPointAt(position).BeatLength;
double speedMultiplier = controlPointInfo.DifficultyPointAt(position).SpeedMultiplier;
return speedMultiplier * TimingControlPoint.DEFAULT_BEAT_LENGTH / beatLength;
}
protected override void ApplyNormalVisibilityState(DrawableHitObject hitObject, ArmedState state)
{
switch (hitObject)
{
case DrawableDrumRollTick _:
case DrawableHit _:
double preempt = 10000 / MultiplierAt(hitObject.HitObject.StartTime);
double start = hitObject.HitObject.StartTime - preempt * 0.6;
double duration = preempt * 0.3;
using (hitObject.BeginAbsoluteSequence(start))
{
hitObject.FadeOut(duration);
// DrawableHitObject sets LifetimeEnd to LatestTransformEndTime if it isn't manually changed.
// in order for the object to not be killed before its actual end time (as the latest transform ends earlier), set lifetime end explicitly.
hitObject.LifetimeEnd = state == ArmedState.Idle || !hitObject.AllJudged
? hitObject.HitObject.GetEndTime() + hitObject.HitObject.HitWindows.WindowFor(HitResult.Miss)
: hitObject.HitStateUpdateTime;
}
break;
}
}
public override void ApplyToBeatmap(IBeatmap beatmap)
{
controlPointInfo = beatmap.ControlPointInfo;
}
}
}