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osu-lazer/osu.Game.Rulesets.Osu/Mods/OsuModSpunOut.cs
2020-08-11 22:34:46 +02:00

57 lines
2.4 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 System;
using System.Collections.Generic;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Utils;
using osu.Game.Graphics;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Objects.Drawables;
using osu.Game.Rulesets.Osu.Objects.Drawables;
namespace osu.Game.Rulesets.Osu.Mods
{
public class OsuModSpunOut : Mod, IApplicableToDrawableHitObjects
{
public override string Name => "Spun Out";
public override string Acronym => "SO";
public override IconUsage? Icon => OsuIcon.ModSpunout;
public override ModType Type => ModType.Automation;
public override string Description => @"Spinners will be automatically completed.";
public override double ScoreMultiplier => 0.9;
public override bool Ranked => true;
public override Type[] IncompatibleMods => new[] { typeof(ModAutoplay), typeof(OsuModAutopilot) };
public void ApplyToDrawableHitObjects(IEnumerable<DrawableHitObject> drawables)
{
foreach (var hitObject in drawables)
{
if (hitObject is DrawableSpinner spinner)
{
spinner.HandleUserInput = false;
spinner.OnUpdate += onSpinnerUpdate;
}
}
}
private void onSpinnerUpdate(Drawable drawable)
{
var spinner = (DrawableSpinner)drawable;
spinner.RotationTracker.Tracking = true;
// early-return if we were paused to avoid division-by-zero in the subsequent calculations.
if (Precision.AlmostEquals(spinner.Clock.Rate, 0))
return;
// because the spinner is under the gameplay clock, it is affected by rate adjustments on the track;
// for that reason using ElapsedFrameTime directly leads to fewer SPM with Half Time and more SPM with Double Time.
// for spinners we want the real (wall clock) elapsed time; to achieve that, unapply the clock rate locally here.
var rateIndependentElapsedTime = spinner.Clock.ElapsedFrameTime / spinner.Clock.Rate;
spinner.RotationTracker.AddRotation(MathUtils.RadiansToDegrees((float)rateIndependentElapsedTime * 0.03f));
}
}
}