Instance Method

isStrictSuperset(of:)

Returns a Boolean value that indicates whether this set is a strict superset of the given set.

Parameters

`other`

A set of the same type as the current set.

Return Value

`true` if the set is a strict superset of `other`; otherwise, `false`.

Discussion

Set A is a strict superset of another set B if every member of B is also a member of A and A contains at least one element that is not a member of B.

Option Set

`var isEmpty: Bool`

A Boolean value that indicates whether the set has no elements.

`func contains(CollisionGroup) -> Bool`

Returns a Boolean value that indicates whether a given element is a member of the option set.

`func formIntersection(CollisionGroup)`

Removes all elements of this option set that are not also present in the given set.

`func formSymmetricDifference(CollisionGroup)`

Replaces this set with a new set containing all elements contained in either this set or the given set, but not in both.

`func formUnion(CollisionGroup)`

Inserts the elements of another set into this option set.

`func insert(CollisionGroup) -> (inserted: Bool, memberAfterInsert: CollisionGroup)`

Adds the given element to the option set if it is not already a member.

`func intersection(CollisionGroup) -> CollisionGroup`

Returns a new option set with only the elements contained in both this set and the given set.

`func isDisjoint(with: CollisionGroup) -> Bool`

Returns a Boolean value that indicates whether the set has no members in common with the given set.

`func isStrictSubset(of: CollisionGroup) -> Bool`

Returns a Boolean value that indicates whether this set is a strict subset of the given set.

`func isSubset(of: CollisionGroup) -> Bool`

Returns a Boolean value that indicates whether the set is a subset of another set.

`func isSuperset(of: CollisionGroup) -> Bool`

Returns a Boolean value that indicates whether the set is a superset of the given set.

`func remove(CollisionGroup) -> CollisionGroup?`

Removes the given element and all elements subsumed by it.

`func subtract(CollisionGroup)`

Removes the elements of the given set from this set.

`func subtracting(CollisionGroup) -> CollisionGroup`

Returns a new set containing the elements of this set that do not occur in the given set.

`func symmetricDifference(CollisionGroup) -> CollisionGroup`

Returns a new option set with the elements contained in this set or in the given set, but not in both.

`func union(CollisionGroup) -> CollisionGroup`

Returns a new option set of the elements contained in this set, in the given set, or in both.