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Flipping bits game: Difference between revisions
→{{header|Nim}}
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A B C
You did it!</pre>
=={{header|Nim}}==
{{trans|Kotlin}}
Translation of Kotlin program with some modifications.
<lang Nim>import random, strformat, strutils
type
Bit = range[0..1]
Board = array[3, array[3, Bit]]
#---------------------------------------------------------------------------------------------------
func flipRow(board: var Board; row: int) =
for cell in board[row].mitems:
cell = 1 - cell
#---------------------------------------------------------------------------------------------------
func flipCol(board: var Board; col: int) =
for row in board.mitems:
row[col] = 1 - row[col]
#---------------------------------------------------------------------------------------------------
proc initBoard(target: Board): Board =
# Starting from the target we make 9 random row or column flips.
result = target
for _ in 1..9:
if rand(1) == 0:
result.flipRow(rand(2))
else:
result.flipCol(rand(2))
#---------------------------------------------------------------------------------------------------
proc print(board: Board; label: string) =
echo &"{label}:"
echo " | a b c"
echo "---------"
for r, row in board:
stdout.write &"{r + 1} |"
for cell in row: stdout.write &" {cell}"
echo ""
echo ""
#———————————————————————————————————————————————————————————————————————————————————————————————————
var target, board: Board
randomize()
# Initialize target.
for row in target.mitems:
for cell in row.mitems:
cell = rand(1)
# Initialize board and ensure it differs from the target i.e. game not already over!
while true:
board = initBoard(target)
if board != target:
break
target.print("TARGET")
board.print("OPENING BOARD")
var flips = 0
while board != target:
# Get input from player.
var isRow = true
var n = -1
while n < 0:
stdout.write "Enter row number or column letter to be flipped: "
stdout.flushFile()
let input = stdin.readLine()
let ch = if input.len > 0: input[0].toLowerAscii else: '0'
if ch notin "123abc":
echo "Must be 1, 2, 3, a, b or c"
continue
if ch in '1'..'3':
n = ord(ch) - ord('1')
else:
isRow = false
n = ord(ch) - ord('a')
# Update board.
inc flips
if isRow: board.flipRow(n) else: board.flipCol(n)
target.print("\nTARGET")
let plural = if flips == 1: "" else: "S"
board.print(&"BOARD AFTER {flips} FLIP{plural}")
let plural = if flips == 1: "" else: "s"
echo &"You’ve succeeded in {flips} flip{plural}"</lang>
{{out}}
<pre>TARGET:
| a b c
---------
1 | 1 0 0
2 | 1 0 0
3 | 0 1 1
OPENING BOARD:
| a b c
---------
1 | 0 1 0
2 | 1 0 1
3 | 1 0 1
Enter row number or column letter to be flipped: a
TARGET:
| a b c
---------
1 | 1 0 0
2 | 1 0 0
3 | 0 1 1
BOARD AFTER 1 FLIP:
| a b c
---------
1 | 1 1 0
2 | 0 0 1
3 | 0 0 1
Enter row number or column letter to be flipped: 2
TARGET:
| a b c
---------
1 | 1 0 0
2 | 1 0 0
3 | 0 1 1
BOARD AFTER 2 FLIPS:
| a b c
---------
1 | 1 1 0
2 | 1 1 0
3 | 0 0 1
Enter row number or column letter to be flipped: b
TARGET:
| a b c
---------
1 | 1 0 0
2 | 1 0 0
3 | 0 1 1
BOARD AFTER 3 FLIPS:
| a b c
---------
1 | 1 0 0
2 | 1 0 0
3 | 0 1 1
You’ve succeeded in 3 flips
=={{header|OCaml}}==
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