osu/osu.Game/Rulesets/UI/ModIcon.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 System;
using OpenTK.Graphics;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Graphics;
using osu.Game.Rulesets.Mods;

namespace osu.Game.Rulesets.UI
{
    public class ModIcon : Container
    {
        private readonly TextAwesome modIcon;
        private readonly TextAwesome background;

        private float iconSize = 80;
        public float IconSize
        {
            get
            {
                return iconSize;
            }
            set
            {
                iconSize = value;
                reapplySize();
            }
        }

        public new Color4 Colour
        {
            get { return background.Colour; }
            set { background.Colour = value; }
        }

        public FontAwesome Icon
        {
            get { return modIcon.Icon; }
            set { modIcon.Icon = value; }
        }

        public ModIcon(Mod mod)
        {
            if (mod == null) throw new ArgumentNullException(nameof(mod));

            Children = new Drawable[]
            {
                background = new TextAwesome
                {
                    Origin = Anchor.Centre,
                    Anchor = Anchor.Centre,
                    Icon = FontAwesome.fa_osu_mod_bg,
                    Colour = getBackgroundColourFromMod(mod),
                    Shadow = true,
                    TextSize = 20
                },
                modIcon = new TextAwesome
                {
                    Origin = Anchor.Centre,
                    Anchor = Anchor.Centre,
                    Colour = OsuColour.Gray(84),
                    TextSize = 20,
                    Icon = mod.Icon
                },
            };

            reapplySize();
        }

        private void reapplySize()
        {
            background.TextSize = iconSize;
            modIcon.TextSize = iconSize - 35;
        }

        private Color4 getBackgroundColourFromMod(Mod mod)
        {
            switch (mod.Type)
            {
                case ModType.DifficultyIncrease:
                    return OsuColour.FromHex(@"ffcc22");
                case ModType.DifficultyReduction:
                    return OsuColour.FromHex(@"88b300");
                case ModType.Special:
                    return OsuColour.FromHex(@"66ccff");

                default: return Color4.White;
            }
        }
    }
}