// generic, non-dependent on object passed through argument
public static T[] ShuffleArray<T>(T[] genericArray) {
	float randomIndex = 0.0f;
	T holder;

	for (int i = 0; i < genericArray.Length; i++) {
		randomIndex = Random.Range(0, genericArray.Length);
		holder = genericArray[(int)randomIndex];
		genericArray[(int)randomIndex] = genericArray[i];
		genericArray[i] = holder;
	}

	return genericArray;
}