| Parents: | tetris | 
| Authors: | Alex Chapman | 
| Class | Superclass | Slots | 
  tetris |   tuple | board pieces last-update rows score paused? running? | 
| Word | Stack effect | 
  (rotate) | ( inc tetris -- ) | 
  <default-tetris> | ( -- tetris ) | 
  <new-tetris> | ( old -- new ) | 
  <tetris> | ( width height -- tetris ) | 
  ?update | ( tetris -- ) | 
  add-block | ( tetris block -- ) | 
  add-rows | ( tetris rows -- tetris ) | 
  add-score | ( tetris n-rows -- tetris ) | 
  can-move? | ( tetris move -- ? ) | 
  can-rotate? | ( tetris -- ? ) | 
  current-piece | ( tetris -- piece ) | 
  default-height | ( -- value ) | 
  default-width | ( -- value ) | 
  game-over? | ( tetris -- ? ) | 
  level | ( tetris -- level ) | 
  lock-piece | ( tetris -- ) | 
  move-down | ( tetris -- ) | 
  move-drop | ( tetris -- ) | 
  move-left | ( tetris -- ) | 
  move-right | ( tetris -- ) | 
  new-current-piece | ( tetris -- tetris ) | 
  next-piece | ( tetris -- piece ) | 
  rotate-left | ( tetris -- ) | 
  rotate-right | ( tetris -- ) | 
  rows-score | ( level n -- score ) | 
  score-rows | ( tetris n -- ) | 
  tetris-move | ( tetris move -- ? ) | 
  toggle-pause | ( tetris -- ) | 
  update | ( tetris -- ) | 
  update-interval | ( tetris -- interval ) | 
| Word | Stack effect | 
  tetris? | ( object -- ? ) |