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osu-lazer/osu.Game/Overlays/OverlayColourProvider.cs
2022-02-20 21:09:08 +01:00

99 lines
3.7 KiB
C#

// 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 System;
using osuTK;
using osuTK.Graphics;
namespace osu.Game.Overlays
{
public class OverlayColourProvider
{
private readonly OverlayColourScheme colourScheme;
public OverlayColourProvider(OverlayColourScheme colourScheme)
{
this.colourScheme = colourScheme;
}
// Note that the following five colours are also defined in `OsuColour` as `{colourScheme}{0,1,2,3,4}`.
// The difference as to which should be used where comes down to context.
// If the colour in question is supposed to always match the view in which it is displayed theme-wise, use `OverlayColourProvider`.
// If the colour usage is special and in general differs from the surrounding view in choice of hue, use the `OsuColour` constants.
public Color4 Colour0 => getColour(1, 0.8f);
public Color4 Colour1 => getColour(1, 0.7f);
public Color4 Colour2 => getColour(0.8f, 0.6f);
public Color4 Colour3 => getColour(0.6f, 0.5f);
public Color4 Colour4 => getColour(0.4f, 0.3f);
public Color4 Highlight1 => getColour(1, 0.7f);
public Color4 Content1 => getColour(0.4f, 1);
public Color4 Content2 => getColour(0.4f, 0.9f);
public Color4 Light1 => getColour(0.4f, 0.8f);
public Color4 Light2 => getColour(0.4f, 0.75f);
public Color4 Light3 => getColour(0.4f, 0.7f);
public Color4 Light4 => getColour(0.4f, 0.5f);
public Color4 Dark1 => getColour(0.2f, 0.35f);
public Color4 Dark2 => getColour(0.2f, 0.3f);
public Color4 Dark3 => getColour(0.2f, 0.25f);
public Color4 Dark4 => getColour(0.2f, 0.2f);
public Color4 Dark5 => getColour(0.2f, 0.15f);
public Color4 Dark6 => getColour(0.2f, 0.1f);
public Color4 Foreground1 => getColour(0.1f, 0.6f);
public Color4 Background1 => getColour(0.1f, 0.4f);
public Color4 Background2 => getColour(0.1f, 0.3f);
public Color4 Background3 => getColour(0.1f, 0.25f);
public Color4 Background4 => getColour(0.1f, 0.2f);
public Color4 Background5 => getColour(0.1f, 0.15f);
public Color4 Background6 => getColour(0.1f, 0.1f);
private Color4 getColour(float saturation, float lightness) => Color4.FromHsl(new Vector4(getBaseHue(colourScheme), saturation, lightness, 1));
// See https://github.com/ppy/osu-web/blob/5a536d217a21582aad999db50a981003d3ad5659/app/helpers.php#L1620-L1628
private static float getBaseHue(OverlayColourScheme colourScheme)
{
switch (colourScheme)
{
default:
throw new ArgumentException($@"{colourScheme} colour scheme does not provide a hue value in {nameof(getBaseHue)}.");
case OverlayColourScheme.Red:
return 0;
case OverlayColourScheme.Pink:
return 333 / 360f;
case OverlayColourScheme.Orange:
return 45 / 360f;
case OverlayColourScheme.Lime:
return 90 / 360f;
case OverlayColourScheme.Green:
return 125 / 360f;
case OverlayColourScheme.Purple:
return 255 / 360f;
case OverlayColourScheme.Blue:
return 200 / 360f;
case OverlayColourScheme.Plum:
return 320 / 360f;
}
}
}
public enum OverlayColourScheme
{
Red,
Pink,
Orange,
Lime,
Green,
Purple,
Blue,
Plum,
}
}