osu-lazer/osu.Game/Rulesets/Mods/ModNightcore.cs

// 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.Audio;
using osu.Framework.Audio.Track;
using osu.Framework.Bindables;
using osu.Framework.Graphics.Sprites;
using osu.Game.Graphics;

namespace osu.Game.Rulesets.Mods
{
    public abstract class ModNightcore : ModDoubleTime
    {
        public override string Name => "Nightcore";
        public override string Acronym => "NC";
        public override IconUsage Icon => OsuIcon.ModNightcore;
        public override string Description => "Uguuuuuuuu...";

        private readonly BindableNumber<double> tempoAdjust = new BindableDouble(1);
        private readonly BindableNumber<double> freqAdjust = new BindableDouble(1);

        protected ModNightcore()
        {
            SpeedChange.BindValueChanged(val =>
            {
                freqAdjust.Value = SpeedChange.Default;
                tempoAdjust.Value = val.NewValue / SpeedChange.Default;
            }, true);
        }

        public override void ApplyToTrack(Track track)
        {
            // base.ApplyToTrack() intentionally not called (different tempo adjustment is applied)
            track.AddAdjustment(AdjustableProperty.Frequency, freqAdjust);
            track.AddAdjustment(AdjustableProperty.Tempo, tempoAdjust);
        }
    }
}