Companion object for SqCens trait efficient array[Int] based collection for SqCens hex grid centre coordinates, contains factory apply and uninitialised methods..
This method allows a flat Array[Int] based collection class of type M, the final type, to be created from an Array[Int].
Apply factory method
The number of Ints that are needed to construct an element of the defining-sequence.
This method allows a flat Array[Int] based collection class of type M, the final type, to be created from an ArrayBuffer[Int].
returns a collection class of type ArrA, whose backing Array[Int] is uninitialised.