refactor: action to a subclass of ndarray for a clearer interface and consistent repr. #122
+87
−66
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Add a clearer interface for Action & ensure a consistent representation (i.e. it's always an np.array with 5 int8's, not sometimes a list with some bools and some ints, etc.).
Note: I went with
np.int8
rather thannp.uint8
since the game-logic subtracts from the (row, col) fields sometimes resulting in -1.I also added a distinction between
moves
&actions
and noted what it means in the docs.