osu-lazer/osu.Game.Rulesets.Osu/Objects/Drawables/Pieces/SpinnerBackground.cs

// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE

using OpenTK.Graphics;
using osu.Framework.Allocation;
using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Sprites;
using osu.Game.Graphics;

namespace osu.Game.Rulesets.Osu.Objects.Drawables.Pieces
{
    public class SpinnerBackground : CircularContainer, IHasAccentColour
    {
        public override bool HandleInput => false;

        protected Sprite Disc;

        public Color4 AccentColour
        {
            get { return Disc.Colour; }
            set { Disc.Colour = value; }
        }

        public SpinnerBackground()
        {
            RelativeSizeAxes = Axes.Both;
            Masking = true;

            Children = new Drawable[]
            {
                Disc = new Box
                {
                    Origin = Anchor.Centre,
                    Anchor = Anchor.Centre,
                    RelativeSizeAxes = Axes.Both,
                    Alpha = 1,
                },
            };
        }

        [BackgroundDependencyLoader]
        private void load(OsuColour colours)
        {
            EdgeEffect = new EdgeEffect
            {
                Type = EdgeEffectType.Glow,
                Radius = 14,
                Colour = colours.BlueLight.Opacity(0.3f),
            };
        }
    }
}