def negotiate_first(game, resolved_board, allempty, clientSecretHashed):
previousMove = game.lastMove
if previousMove.clientSecret == "":
raise UnfinishedMove("I was expecting client secret now.")
previousNumber = previousMove.moveNumber
serverSecret = rand256hex()
serverSecretHashed = sha256(serverSecret)
move = Move(
belongs_to = game,
moveNumber = previousNumber + 1,
board = move_logic.serialize_board(resolved_board),
allempty = move_logic.serialize_board(allempty),
serverSecret = serverSecret,
serverSecretHashed = serverSecretHashed,
clientSecret = "",
clientSecretHashed = clientSecretHashed
)
move.save()
game.lastMove = move
game.save()
return move
def check_validity(move): # isValid, randomNumber
clientSecret = move.clientSecret
clientSecretHashed = move.clientSecretHashed
valid = (sha256(clientSecret) == clientSecretHashed)
if valid:
serverSecret = move.serverSecret
randomNumber = xorHex(serverSecret, clientSecret)
else:
serverSecret = "X"
randomNumber = rand256hex()
allempty = move_logic.deserialize_board(move.allempty)
emptyNo = len(allempty)
board = move_logic.deserialize_board(move.board)
position = allempty[int(randomNumber, 16)%emptyNo]
board[position[0]][position[1]] = move_logic.new_value
if move.moveNumber != sum(map(sum, board)):
raise Error("moveNumber != sum(board), database corruption, we're all going to die.")
gameover = False
result = move.moveNumber
game = move.belongs_to
if emptyNo == 1:
gameover = not move_logic.has_move(board)
if gameover:
result = move.moveNumber + 1
game.result = result
#person = game.belongs_to
#if result > person.bestResult:
# person.bestResult = result
move.board = move_logic.serialize_board(board)
game.gameover = gameover
game.save()
move.save()
return { "valid": valid,
"serverSecret": serverSecret,
"randomNumber": randomNumber,
"position": position,
"value": move_logic.new_value,
"gameover": gameover,
"moveNumber": result
}
def newGame(user):
board = move_logic.create_board(move_logic.size)
board[1][1] = 1
move = Move(
belongs_to = None,
moveNumber = 1,
board = move_logic.serialize_board(board),
serverSecret = "0",
serverSecretHashed = "0",
clientSecret = "0",
clientSecretHashed = "0"
)
move.save()
game = Game(
gameid = rand256hex(),
belongs_to = user,
gameover = False,
lastMove = move
)
game.save()
move.belongs_to = game
move.save()
return game