osu-lazer/osu.Game.Rulesets.Osu/Objects/Drawables/Pieces/RingPiece.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.Graphics;
using osu.Framework.Graphics.Containers;
using osuTK;
using osuTK.Graphics;
using osu.Framework.Graphics.Shapes;

namespace osu.Game.Rulesets.Osu.Objects.Drawables.Pieces
{
    public class RingPiece : CircularContainer
    {
        public RingPiece()
        {
            Size = new Vector2(OsuHitObject.OBJECT_RADIUS * 2);

            Anchor = Anchor.Centre;
            Origin = Anchor.Centre;

            Masking = true;
            BorderThickness = 9; // roughly matches slider borders and makes stacked circles distinctly visible from each other.
            BorderColour = Color4.White;

            Child = new Box
            {
                AlwaysPresent = true,
                Alpha = 0,
                RelativeSizeAxes = Axes.Both
            };
        }
    }
}