betris: A horizontal version of tetris for braille users

[ bsd3, game, library, program ] [ Propose Tags ]

The game of tetris for braille display users, implemented using unicode braille rotated 90 degrees. Tetriminos are "falling" from right to left.

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Dependencies ansi-terminal, base (>=4.9.0 && <4.15), betris, containers (>=0.5.7 && <0.7), lens (>=4.15.4 && <4.20), linear (>=1.20.7 && <1.22), optparse-applicative (>=0.14.2 && <0.16), random (==1.1.*), stm (>=2.4.5 && <2.6), time-units (>=1.0.0 && <1.1), vty (>=5.21 && <5.33) [details]
License BSD-3-Clause
Copyright 2020 Mario Lang
Author Mario Lang
Category Game
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Source repo head: git clone
Uploaded by mlang at 2021-04-18T08:06:35Z
Distributions NixOS:
Executables betris
Downloads 2774 total (34 in the last 30 days)
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Status Hackage Matrix CI
Docs available [build log]
Last success reported on 2021-04-18 [all 1 reports]


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A tetris-clone for braille display users.

How does it work

Every block is a dot. And the game has been flipped 90 degrees, so you are playing from right to left instead of top to bottom.

The size of the playing field is identical to the original game. Since a braille character is 4 dots in height, the player needs to scroll up/down to see the full field of 10 blocks. There is no need to interact with a screen reader. Moving the current tetrimino around will also move the currently visible area. The tetrimino is always aligned at the top of the display, except for the last column.


This game can be played online.

$ ssh