osu-lazer/osu.Game.Rulesets.Mania/UI/ManiaScrollingPlayfield.cs

// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE

using osu.Framework.Allocation;
using osu.Framework.Configuration;
using osu.Game.Rulesets.UI.Scrolling;

namespace osu.Game.Rulesets.Mania.UI
{
    public abstract class ManiaScrollingPlayfield : ScrollingPlayfield
    {
        private readonly IBindable<ScrollingDirection> direction = new Bindable<ScrollingDirection>();

        [BackgroundDependencyLoader]
        private void load(IScrollingInfo scrollingInfo)
        {
            direction.BindTo(scrollingInfo.Direction);
            direction.BindValueChanged(direction => Direction.Value = direction, true);
        }
    }
}