Assert.cs

using UnityEngine;

namespace Gubbins.Assertions
{
    public static class Assert
    {
        public static void AssignIfNull<T>(ref T value) where T : Object
        {
            if (value != null) return;

            value = Object.FindObjectOfType<T>();

            Debug.LogAssertion("Assertion failed. " + (value != null ? value.name : "Nothing") +
                " was found for missing " + typeof(T));
        }
    }
}