osu-lazer/osu.Game/Rulesets/UI/Scrolling/ScrollingPlayfield.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.Objects.Drawables;

namespace osu.Game.Rulesets.UI.Scrolling
{
    /// <summary>
    /// A type of <see cref="Playfield"/> specialized towards scrolling <see cref="DrawableHitObject"/>s.
    /// </summary>
    public abstract class ScrollingPlayfield : Playfield
    {
        protected readonly IBindable<ScrollingDirection> Direction = new Bindable<ScrollingDirection>();

        [Resolved]
        private IScrollingInfo scrollingInfo { get; set; }

        [BackgroundDependencyLoader]
        private void load()
        {
            Direction.BindTo(scrollingInfo.Direction);
        }

        protected sealed override HitObjectContainer CreateHitObjectContainer() => new ScrollingHitObjectContainer();
    }
}