def cancel_game(self, request):
""" Cancel game. Game state and history is preserved in datastore.
Only requestor of game (parent) can cancel it"""
# try to get game by safe_url or by game_id
game = get_by_game_id(request.game_id)
if not game:
# game cannot be found
raise endpoints.NotFoundException('Game not found!')
if game.status == "CANCELLED":
raise endpoints.BadRequestException('Game has already been'
' cancelled.')
if not game.status == "ACTIVE":
raise endpoints.BadRequestException('And ended game cannot'
' be cancelled.')
if game:
creator = OthelloPlayer.query(
ancestor=ndb.Key(User, request.user_name)).get()
if not creator:
raise endpoints.BadRequestException('User does not exist.')
else:
if game.key.parent() != creator.key:
raise endpoints.BadRequestException('User is not game'
' creator')
# cancel game
game.status = "CANCELLED"
game.put()
return SimpleMessage(message='Found and cancelled Othello game.')
def get_game(self, request):
""" Gets game status by game id"""
game = get_by_game_id(request.game_id)
if game:
return self._copyOthelloGameToForm(game)
else:
return OthelloGameForm()
def get_game_history(self, request):
""" Query game history kind for games matching id """
game = get_by_game_id(game_id=request.game_id)
if not game:
return OthelloGameHistoryForm(
message='No history found for game ' + request.game_id)
# query Othello game history entity with game id request.game_id
game_history = OthelloGameHistory.query(ancestor=game.key).get()
if not game_history:
raise endpoints.BadRequestException(
'Could not find history linked to this game')
return OthelloGameHistoryForm(
game_status=game_history.key.parent().get().status,
game_id=int(request.game_id),
moves=game_history.moves)
def _make_move(self, request):
""" Controller for movements. If game is SINGLE_PLAYER,
CPU will take turn after player submits valid move.
Otherwise, CPU waits for valid move or yield from player"""
game = get_by_game_id(request.game_id)
if not game:
return False, "Game not found"
print "Game status", game.status, type(game.status)
if not game.status == "ACTIVE":
return False, "This game is not active"
if ndb.Key(OthelloPlayer, request.user_name,
parent=ndb.Key(User, request.user_name))\
not in game.userKeys:
return False, "Player {0} is not registered for this game".\
format(request.user_name)
parent_keys = [p.parent() for p in game.userKeys]
players = ndb.get_multi(parent_keys)
print "Players in this game", players
# load game logic object
game_logic = load_game_logic(game.gamelogic)
player_turn = 1 if players[0].name == request.user_name else 2
isvalid, message = game_logic._make_move(player_turn, request.move)
print message
# load an update game history in memory
game_history = OthelloGameHistory.query(ancestor=game.key).get()
if not game_history.moves:
moves = []
else:
moves = json.loads(game_history.moves)
# append moves from user if move is valid
if isvalid:
moves.append([request.user_name, request.move])
if game_logic.game_mode == TWO_PLAYER_MODE:
# PUSH TASK QUEUE to notify opponent that move has been made
taskqueue.add(params={'email': players[0].email if
player_turn == 2 else players[1].email,
'score': game_logic._getScore()},
url='/tasks/send_gameturn_notification_email')
print "Whose turn is it?", game_logic.CP
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# CPU MOVE
if isvalid and game_logic.game_mode == SINGLE_PLAYER_MODE:
print "Calling CPU for move..."
isvalid, cpu_move = game_logic._cpu_move()
moves.append(['cpu', cpu_move])
print message
message = "Your move was valid. {0}".format(cpu_move)
# updates game logic with values from OthelloLogic instance
update_game_logic(game_logic, game.gamelogic)
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# GAME OVER CONDITIONS
if game_logic._isBoardFull():
game.status = "ENDED_COMPLETE"
message = "Game has ended. The board is full!"
if request.move == '0':
game.status = "ENDED_INCOMPLETE"
# record last move
moves.append([players[0].name if player_turn == 1 else
players[1].name, request.move])
message = "The user abandoned the game. "
"Score will be accounted for"
if not game.status == "ACTIVE":
# get score
score_player1, score_player2 = game_logic._getScore()
score_diff = abs(score_player1-score_player2)
player1_entry = OthelloScoreBoardEntry.query(
ancestor=game.userKeys[0]).get()
# CHECK END OF TWO PLAYER GAME
if game_logic.game_mode == TWO_PLAYER_MODE:
player2_entry = OthelloScoreBoardEntry.query(
ancestor=game.userKeys[1]).get()
if score_player1 > score_player2:
# PLAYER 1 WINS
message = "Player {0} wins!".format(
game.userKeys[0].parent().get().name)
player1_entry.points += score_player1
player1_entry.wins += 1
player1_entry.winning_streak += 1
# update score difference average - player 1
update_score_difference_ave(
player1_entry.score_difference_average,
score_diff)
player2_entry.winning_streak = 0
elif score_player1 < score_player2:
# PLAYER 2 WINS
message = "Player {0} wins!".format(
game.userKeys[1].parent().get().name)
player2_entry.points += score_player2
player2_entry.wins += 1
player2_entry.winning_streak += 1
# update score difference average - player 2
update_score_difference_ave(
player2_entry.score_difference_average,
score_diff)
player1_entry.winning_streak = 0
else:
# tie game
message = "This game is tied! No changes in scoreboard"
# update players scoreboard entries in datastore
ndb.put_multi([player1_entry, player2_entry])
# CHECK END FOR SINGLE PLAYER GAME
if game_logic.game_mode == SINGLE_PLAYER_MODE:
if score_player1 > score_player2:
# PLAYER 1 WINS
message = "Player {0} wins!".format(
game.userKeys[0].parent().get().name)
player1_entry.points += score_player1
player1_entry.wins += 1
update_score_difference_ave(
player1_entry.score_difference_average,
score_diff)
player1_entry.winning_streak += 1
elif score_player1 < score_player2:
message = "CPU wins."
player1_entry.winning_streak = 0
player1_entry.put()
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# UPDATE GAME AND HISTORY DATASTORE
game.put()
# UPDATE GAME HISTORY
game_history.moves = json.dumps(moves)
game_history.put()
return True, message