def nsa(request, **kwargs):
"""The NSA game.
They're always listening...
Basically, the "NSA" listens to every event, so even a hover by the human triggers a move by the NSA. With each
move, the occupied positions are sent to the view to determine when there is a win. Ironically, in this game, only
NSA moves are recorded, so naturally, the human can't win against the NSA. (Just like life, man)"""
move = kwargs.get('move', None)
if move:
try:
g = Game()
over = False
result = {'result': ''}
context = dict()
g.take('machine', int(move))
winner = g.winner('machine')
if winner:
over = True
result = {'result': list(winner)}
context['move'] = 999
context['over'] = over
context['result'] = result
return HttpResponse(json.dumps(context), content_type="application/json")
except:
raise Http404
Game.reset()
return render(request, 'nsa.html')
def standard(request, **kwargs):
"""The "standard" unwinnable game control."""
# Get the move from the GET args, if any
move = kwargs.get('move', None)
if move:
try:
# Start the game and initialize some useful variables
g = Game()
over = False
result = {'result': ''}
context = dict()
# Take the position indicated by <move>
g.take('human', int(move))
if len(g.available) != 0:
# There are still moves available, so just make it feel like the computer is thinking a bit.
# Response is otherwise pretty much instantaneous and doesn't "feel" very real.
sleep(2)
# Normally, I would expect this next operation to be necessary. Since there is no actual session being
# started, any game state would be lost when the request completes so any subsequent requests would
# have no memory of what moves had previously been made. It appears, however, that the Django runserver
# preserves the game state between requests, so this isn't necessary if using the runserver. In the
# real world, this would take all the moves that have been made so far, which are submitted from the UI,
# and reconstruct the game state from them.
# x = request.GET.get('x', None)
# if x:
# g.x = [int(i) for i in x.strip(',').split(',')]
# o = request.GET.get('o', None)
# if o:
# g.o = [int(i) for i in o.strip(',').split(',')]
take = g.next_move()
g.take('machine', take)
winner = g.winner('machine')
# If the machine has won, set game over and the winning vector for return to UI
if winner:
over = True
result = {'result': list(winner)}
else:
take = 9999 # No other moves are taken
over = True
result = {'result': 'draw'}
if over:
# The game is over, so reset the game--this actually doesn't seem to work with the runserver though for
# some reason. You actually have to stop and restart the runserver to reset the game. Not sure why.
Game.reset()
# Set up the response dictionary and resturn as JSON for handling by the UI
context['move'] = take
context['over'] = over
context['result'] = result
return HttpResponse(json.dumps(context), content_type="application/json")
except Exception:
print traceback.format_exc()
raise Http404
return render(request, 'standard.html')
class TicTacToeTest(unittest.TestCase):
def setUp(self):
self.board = Game()
def tearDown(self):
self.board.reset()
def test_001(self):
"""Test the available move checker"""
moves = self.board.available
# Make sure all moves are available
self.assertTrue(len(moves) == 9, 'Not all moves are available')
self.assertTrue(moves == [0, 1, 2, 3, 4, 5, 6, 7, 8], 'Available moves do not match')
def test_002(self):
"""Test position setter"""
self.board.take('machine', 4) # Machine takes center position
moves = self.board.available
self.assertTrue(len(moves) == 8, 'Position not taken')
self.assertTrue(moves == [0, 1, 2, 3, 5, 6, 7, 8], 'Available moves do not match')
def test_003(self):
"""Test win detection"""
self.board.take('machine', 1)
# At this point we shoulnd't have a winner yet
self.assertFalse(self.board.winner('machine'), 'We have a winner')
self.board.take('machine', 7)
# Now the machine player should have won
self.assertTrue(self.board.winner('machine'), '{0} is not the winner'.format(PLAYERS['machine']))
self.assertTrue(self.board.winner('machine') == (1, 4, 7), 'Unexpected winning vector')
def test_004(self):
"""Test win detection"""
self.board.clear('machine', 1)
# Now the machine player should have a winning move available
self.assertTrue(self.board.winnable('machine') == 1, 'Exptected to be able to win')
def test_005(self):
"""Test game evaulation -- Winning move"""
self.board.take('human', 0)
self.board.take('human', 3)
move = self.board.eval_tree('machine')
self.assertTrue(move == 1, 'Expected to choose position 1 for the win')
def test_006(self):
"""Test game evaluation -- Blocking move"""
Game.reset()
self.board.take('human', 4)
self.board.take('human', 2)
self.board.take('machine', 0)
self.board.take('machine', 1)
move = self.board.eval_tree('machine')
self.assertTrue(move == 6, 'Expected to choose position 6 for the block')
def test_007(self):
"""Test game evaluation - minimax."""
Game.reset()
self.board.take('human', 0)
self.board.take('human', 4)
self.board.take('machine', 8)
move = self.board.next_move()
self.assertTrue(move == 2 or move == 6, 'Expected to choose position 2 or 6 to lead to a draw')