osu/osu.Game/Graphics/Sprites/OsuSpriteText.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 osu.Framework.Graphics;
using osu.Framework.Graphics.Sprites;
using osu.Framework.MathUtils;
using OpenTK;
using OpenTK.Graphics;

namespace osu.Game.Graphics.Sprites
{
    public class OsuSpriteText : SpriteText
    {
        public const float FONT_SIZE = 16;

        public OsuSpriteText()
        {
            Shadow = true;
            TextSize = FONT_SIZE;
        }

        protected override Drawable CreateFallbackCharacterDrawable()
        {
            var tex = GetTextureForCharacter('?');

            if (tex != null)
            {
                float adjust = (RNG.NextSingle() - 0.5f) * 2;
                return new Sprite
                {
                    Texture = tex,
                    Origin = Anchor.Centre,
                    Anchor = Anchor.Centre,
                    Scale = new Vector2(1 + adjust * 0.2f),
                    Rotation = adjust * 15,
                    Colour = Color4.White,
                };
            }

            return base.CreateFallbackCharacterDrawable();
        }
    }
}