ColorUtility.cs

using MPewsey.ManiaMap;
using UnityEngine;
 
namespace MPewsey.ManiaMapUnity
{
    public static class ColorUtility
    {
        public static Color32 ConvertColor4ToColor32(Color4 color)
        {
            return new Color32(color.R, color.G, color.B, color.A);
        }
 
        public static Color4 ConvertColor32ToColor4(Color32 color)
        {
            return new Color4(color.r, color.g, color.b, color.a);
        }
 
        public static Color CompositeColors(Color colorA, Color colorB)
        {
            var alpha1 = colorA.a;
            var alpha2 = colorB.a * (1 - colorA.a);
            var alpha = alpha1 + alpha2;
            alpha1 /= alpha;
            alpha2 /= alpha;
            var red = colorA.r * alpha1 + colorB.r * alpha2;
            var green = colorA.g * alpha1 + colorB.g * alpha2;
            var blue = colorA.b * alpha1 + colorB.b * alpha2;
            return new Color(red, green, blue, alpha);
        }
    }
}