/// <summary>
/// Returns a random item from the list.
/// </summary>
public T RandomItem <T>(IList <T> list)
{
int randomIndex = Int.FromRange(0, list.Count);
return(list[randomIndex]);
}
/// <summary>
/// Returns +1 or -1 randomly.
/// </summary>
public int RandomSign()
{
return(Int.FromRange(0, 2) * 2 - 1); //0*2 -1 = -1 | 1*2 -1 = 1
}
