Tetris

_Tetris_
_tetris_

David Van Horn
<[email protected]>

This is a simple implementation of Tetris, developed using the design
recipe of HtDP.  It uses Scheme Unit for test cases.

To play the game, require the library and invoke the _play_ procedure
with no arguments.

  (require (planet "tetris.ss" ("dvanhorn" "tetris.plt" 1 0)))
  (play)

Keyboard actions:

   A - clockwise rotation
   S - counterclockwise rotation
   Left - move left
   Right - move right
   Down - jump down

The game is currently written to include a "ghost peice" that shows
where the current tetra would land.