/// <summary>
/// Gets the game objects identified by the supplied ctx key.
/// </summary>
/// <remarks>
/// Automatically checks if the key is for a single GameObject, a collection of GameObjects,
/// or if no key has been supplied. When no key is supplied, the current GameObject is used.
/// </remarks>
/// <returns>
/// The game objects.
/// </returns>
/// <param name='ctx'>
/// The data for the tree.
/// </param>
/// <param name='key'>
/// Key.
/// </param>
public static IEnumerable <GameObject> GetGameObjects(this IBehaviorContext ctx, string key)
{
var targets = new List <GameObject>();
if (string.IsNullOrEmpty(key))
{
targets.Add(ctx.GetGameObject());
}
else
{
var targetObj = ctx.GetItemOrDefault <object>(key);
if (targetObj is IEnumerable <GameObject> )
{
targets.AddRange((IEnumerable <GameObject>)targetObj);
}
else if (targetObj is GameObject)
{
targets.Add((GameObject)targetObj);
}
}
return(targets);
}