Ez2Lazer/osu.Game.Rulesets.Mania/Skinning/Legacy/HitTargetInsetContainer.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.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Rulesets.UI.Scrolling;
using osu.Game.Screens;
using osu.Game.Skinning;

namespace osu.Game.Rulesets.Mania.Skinning.Legacy
{
    public partial class HitTargetInsetContainer : Container
    {
        private readonly IBindable<ScrollingDirection> direction = new Bindable<ScrollingDirection>();
        private Bindable<double> hitPositonBindable = new Bindable<double>();
        private Bindable<bool> globalHitPosition = new Bindable<bool>();

        protected override Container<Drawable> Content => content;
        private readonly Container content;

        private float hitPosition;

        public HitTargetInsetContainer()
        {
            RelativeSizeAxes = Axes.Both;

            InternalChild = content = new Container { RelativeSizeAxes = Axes.Both };
        }

        [BackgroundDependencyLoader]
        private void load(ISkinSource skin, EzSkinSettingsManager ezSkinConfig, IScrollingInfo scrollingInfo)
        {
            direction.BindTo(scrollingInfo.Direction);
            direction.BindValueChanged(onDirectionChanged, true);

            ezSkinConfig.GetBindable<bool>(EzSkinSetting.GlobalHitPosition).BindValueChanged(_ => updateHitPosition(skin, ezSkinConfig));
            ezSkinConfig.GetBindable<double>(EzSkinSetting.HitPosition).BindValueChanged(_ => updateHitPosition(skin, ezSkinConfig));

            updateHitPosition(skin, ezSkinConfig);
        }

        private void updateHitPosition(ISkinSource skin, EzSkinSettingsManager ezSkinConfig)
        {
            bool globalHitPositionValue = ezSkinConfig.GetBindable<bool>(EzSkinSetting.GlobalHitPosition).Value;
            double hitPositionValue = ezSkinConfig.GetBindable<double>(EzSkinSetting.HitPosition).Value;

            hitPosition = globalHitPositionValue
                ? (float)hitPositionValue
                : skin.GetManiaSkinConfig<float>(LegacyManiaSkinConfigurationLookups.HitPosition)?.Value ?? (float)hitPositionValue;
        }

        private void onDirectionChanged(ValueChangedEvent<ScrollingDirection> direction)
        {
            content.Padding = direction.NewValue == ScrollingDirection.Up
                ? new MarginPadding { Top = hitPosition }
                : new MarginPadding { Bottom = hitPosition };
        }
    }
}