osu/osu.Game/Graphics/IHasAccentColour.cs

37 lines
1.5 KiB
C#

// 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.Graphics;
using osu.Framework.Graphics.Transforms;
using osu.Game.Graphics.Transforms;
namespace osu.Game.Graphics
{
/// <summary>
/// A type of drawable that has an accent colour.
/// The accent colour is used to colorize various objects inside a drawable
/// without colorizing the drawable itself.
/// </summary>
public interface IHasAccentColour : IDrawable
{
Color4 AccentColour { get; set; }
}
public static class AccentedColourExtensions
{
/// <summary>
/// Tweens the accent colour of a drawable to another colour.
/// </summary>
/// <param name="accentedDrawable">The drawable to apply the accent colour to.</param>
/// <param name="newColour">The new accent colour.</param>
/// <param name="duration">The tween duration.</param>
/// <param name="easing">The tween easing.</param>
public static void FadeAccent<T>(this T accentedDrawable, Color4 newColour, double duration = 0, EasingTypes easing = EasingTypes.None)
where T : Transformable<Drawable>, IHasAccentColour
{
accentedDrawable.TransformTo(() => accentedDrawable.AccentColour, newColour, duration, easing, new TransformAccent());
}
}
}