Play a move in a column. Returns the row where the checker lands. Raises :exc:`ValueError` if the move is illegal.
(self, player, column)
| 38 | return any(b & b >> v & b >> 2 * v & b >> 3 * v for v in [1, 7, 8, 9]) |
| 39 | |
| 40 | def play(self, player, column): |
| 41 | """ |
| 42 | Play a move in a column. |
| 43 | |
| 44 | Returns the row where the checker lands. |
| 45 | |
| 46 | Raises :exc:`ValueError` if the move is illegal. |
| 47 | |
| 48 | """ |
| 49 | if player == self.last_player: |
| 50 | raise ValueError("It isn't your turn.") |
| 51 | |
| 52 | row = self.top[column] |
| 53 | if row == 6: |
| 54 | raise ValueError("This slot is full.") |
| 55 | |
| 56 | self.moves.append((player, column, row)) |
| 57 | self.top[column] += 1 |
| 58 | |
| 59 | if self.winner is None and self.last_player_won: |
| 60 | self.winner = self.last_player |
| 61 | |
| 62 | return row |