/// <summary>
/// Creates a new command for adding/removing one or more <see cref="Positionable{TCoordinates}"/>ies to/from a <see cref="UniverseBase{TCoordinates}"/>.
/// </summary>
/// <param name="universe">The <see cref="UniverseBase{TCoordinates}"/> to add to / remove from.</param>
/// <param name="positionables">The <see cref="Positionable{TCoordinates}"/>s to add/remove.</param>
protected AddRemovePositionables(UniverseBase <TCoordinates> universe, IEnumerable <Positionable <TCoordinates> > positionables)
{
#region Sanity checks
if (universe == null)
{
throw new ArgumentNullException(nameof(universe));
}
if (positionables == null)
{
throw new ArgumentNullException(nameof(positionables));
}
#endregion
_universe = universe;
// Create local defensive copy of entities
_positionables = new List <Positionable <TCoordinates> >(positionables);
}
/// <summary>
/// Creates a new command for removing one or more <see cref="Positionable{TCoordinates}"/>s from a <see cref="IUniverse"/>.
/// </summary>
/// <param name="universe">The <see cref="UniverseBase{TCoordinates}"/> to remove from.</param>
/// <param name="entities">The <see cref="Positionable{TCoordinates}"/>s to remove.</param>
public RemovePositionables(UniverseBase <TCoordinates> universe, IEnumerable <Positionable <TCoordinates> > entities)
: base(universe, entities)
{
}
