/// <summary>
/// Builds a PLib UI object and adds it to an existing UI object.
/// </summary>
/// <param name="component">The UI object to add.</param>
/// <param name="parent">The parent of the new object.</param>
/// <param name="index">The sibling index to insert the element at, if provided.</param>
/// <returns>The built version of the UI object.</returns>
public static GameObject AddTo(this IUIComponent component, GameObject parent,
int index = -2)
{
if (component == null)
{
throw new ArgumentNullException(nameof(component));
}
if (parent == null)
{
throw new ArgumentNullException(nameof(parent));
}
var child = component.Build();
child.SetParent(parent);
if (index == -1)
{
child.transform.SetAsLastSibling();
}
else if (index >= 0)
{
child.transform.SetSiblingIndex(index);
}
return(child);
}
