1 files changed, 0 insertions, 174 deletions
diff --git a/src/scheme/test/hanoi.scheme b/src/scheme/test/hanoi.scheme
deleted file mode 100644
index c4ae7378..00000000
--- a/src/scheme/test/hanoi.scheme
+++ /dev/null
@@ -1,174 +0,0 @@
-;
-; Towers of Hanoi
-;
-; Copyright © 2016 Keith Packard <keithp@keithp.com>
-;
-; This program is free software; you can redistribute it and/or modify
-; it under the terms of the GNU General Public License as published by
-; the Free Software Foundation, either version 2 of the License, or
-; (at your option) any later version.
-;
-; This program is distributed in the hope that it will be useful, but
-; WITHOUT ANY WARRANTY; without even the implied warranty of
-; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-; General Public License for more details.
-;
-
-					; ANSI control sequences
-
-(define (move-to col row)
-  (for-each display (list "\033[" row ";" col "H"))
-  )
-
-(define (clear)
-  (display "\033[2J")
-  )
-
-(define (display-string x y str)
-  (move-to x y)
-  (display str)
-  )
-
-(define (make-piece num max)
-					; A piece for position 'num'
-					; is num + 1 + num stars
-					; centered in a field of max *
-					; 2 + 1 characters with spaces
-					; on either side. This way,
-					; every piece is the same
-					; number of characters
-
-  (define (chars n c)
-    (if (zero? n) ""
-      (+ c (chars (- n 1) c))
-      )
-    )
-  (+ (chars (- max num 1) " ")
-     (chars (+ (* num 2) 1) "*")
-     (chars (- max num 1) " ")
-     )
-  )
-
-(define (make-pieces max)
-					; Make a list of numbers from 0 to max-1
-  (define (nums cur max)
-    (if (= cur max) ()
-      (cons cur (nums (+ cur 1) max))
-      )
-    )
-					; Create a list of pieces
-
-  (map (lambda (x) (make-piece x max)) (nums 0 max))
-  )
-
-					; Here's all of the towers of pieces
-					; This is generated when the program is run
-
-(define towers ())
-
-					; position of the bottom of
-					; the stacks set at runtime
-(define bottom-y 0)
-(define left-x 0)
-
-(define move-delay 25)
-
-					; Display one tower, clearing any
-					; space above it
-
-(define (display-tower x y clear tower)
-  (cond ((= 0 clear)
-	 (cond ((not (null? tower))
-		(display-string x y (car tower))
-		(display-tower x (+ y 1) 0 (cdr tower))
-		)
-	       )
-	 )
-	(else 
-	 (display-string x y "                    ")
-	 (display-tower x (+ y 1) (- clear 1) tower)
-	 )
-	)
-  )
-
-					; Position of the top of the tower on the screen
-					; Shorter towers start further down the screen
-
-(define (tower-pos tower)
-  (- bottom-y (length tower))
-  )
-
-					; Display all of the towers, spaced 20 columns apart
-
-(define (display-towers x towers)
-  (cond ((not (null? towers))
-	 (display-tower x 0 (tower-pos (car towers)) (car towers))
-	 (display-towers (+ x 20) (cdr towers)))
-	)
-  )
-
-					; Display all of the towers, then move the cursor
-					; out of the way and flush the output
-
-(define (display-hanoi)
-  (display-towers left-x towers)
-  (move-to 1 23)
-  (flush-output)
-  (delay move-delay)
-  )
-
-					; Reset towers to the starting state, with
-					; all of the pieces in the first tower and the
-					; other two empty
-
-(define (reset-towers len)
-  (set! towers (list (make-pieces len) () ()))
-  (set! bottom-y (+ len 3))
-  )
-
-					; Move a piece from the top of one tower
-					; to the top of another
-
-(define (move-piece from to)
-
-					; references to the cons holding the two towers
-
-  (define from-tower (list-tail towers from))
-  (define to-tower (list-tail towers to))
-
-					; stick the car of from-tower onto to-tower
-
-  (set-car! to-tower (cons (caar from-tower) (car to-tower)))
-
-					; remove the car of from-tower
-
-  (set-car! from-tower (cdar from-tower))
-  )
-
-					; The implementation of the game
-
-(define (_hanoi n from to use)
-  (cond ((= 1 n)
-	 (move-piece from to)
-	 (display-hanoi)
-	 )
-	(else
-	 (_hanoi (- n 1) from use to)
-	 (_hanoi 1 from to use)
-	 (_hanoi (- n 1) use to from)
-	 )
-	)
-  )
-
-					; A pretty interface which
-					; resets the state of the game,
-					; clears the screen and runs
-					; the program
-
-(define (hanoi len)
-  (reset-towers len)
-  (clear)
-  (display-hanoi)
-  (_hanoi len 0 1 2)
-  #t
-  )