Sam Tay ad1fcf9192 Refactor game state computation ... Cleaning up the Tetris module, mainly to favor a MonadState style over explicit `Game -> Game` functions, which were a little awkward. This also led naturally to explicitly isolating `IO`, by having pure state modifiers with types like `Tetris a ~ forall m. StateT Game m a` being executed with `m ~ Identity`, and those few modifiers that need IO specified by `TetrisT a ~ StateT Game IO a`.		2018-12-27 10:28:26 -05:00
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Main.hs	Refactor game state computation	2018-12-27 10:28:26 -05:00