  Given a categorical action of a Lie algebra, a celebrated theorem of Chuang
and Rouquier proves that the blocks corresponding to weight spaces in the same
orbit of the Weyl group are derived equivalent, proving an even more celebrated
conjecture of Brou\'e for the case of the symmetric group.
  In many cases, these derived equivalences are $t$-exact, and thus induce
equivalences of abelian categories between different blocks. We call two such
blocks ``Scopes equivalent.'' In this paper, we describe how Scopes equivalence
classes for any affine categorification can be classified by the chambers of a
finite hyperplane arrangement, which can be found through simple Lie theoretic
calculations. We pay special attention to the largest equivalence classes,
which we call RoCK, and show how this matches with recent work of Lyle on
Rouquier blocks for Ariki-Koike algebras. We also provide Sage code that tests
whether blocks are RoCK and finds RoCK blocks for Ariki-Koike algebras.
