| 1 | 1 | class BowlingGame: |
| 2 | 2 | def __init__(self): |
| 3 | | pass |
| 4 | | |
| 3 | """ |
| 4 | Initialize a new bowling game. |
| 5 | """ |
| 6 | self.rolls = [] |
| 7 | self.current_frame = 1 |
| 8 | self.frame_rolls = [] |
| 9 | self.frames = [] |
| 10 | |
| 11 | def is_game_complete(self): |
| 12 | """ |
| 13 | Check if the game is complete. |
| 14 | |
| 15 | Returns: |
| 16 | bool: True if the game is complete, False otherwise |
| 17 | """ |
| 18 | if len(self.frames) < 10: |
| 19 | return False |
| 20 | |
| 21 | # Check 10th frame completion |
| 22 | tenth_frame = self.frames[9] |
| 23 | if len(tenth_frame) == 2: |
| 24 | # If it's not a strike or spare, game is complete |
| 25 | return tenth_frame[0] != 10 and sum(tenth_frame) != 10 |
| 26 | elif len(tenth_frame) == 3: |
| 27 | # If it has 3 rolls, game is complete |
| 28 | return True |
| 29 | else: |
| 30 | # Less than 2 rolls in 10th frame |
| 31 | return False |
| 32 | |
| 5 | 33 | def roll(self, pins): |
| 6 | | pass |
| 7 | | |
| 34 | """ |
| 35 | Record a roll in the game. |
| 36 | |
| 37 | Args: |
| 38 | pins (int): Number of pins knocked down in this roll |
| 39 | |
| 40 | Raises: |
| 41 | ValueError: If pins is negative or greater than 10 |
| 42 | IndexError: If game is already over |
| 43 | """ |
| 44 | # Edge Case: Invalid number of pins |
| 45 | if pins < 0: |
| 46 | raise ValueError("Pins cannot be negative") |
| 47 | |
| 48 | # Edge Case: Too many pins |
| 49 | if pins > 10: |
| 50 | raise ValueError("Pin count exceeds pins on the lane") |
| 51 | |
| 52 | # Edge Case: Game already completed |
| 53 | if self.is_game_complete(): |
| 54 | raise IndexError("Game is already complete") |
| 55 | |
| 56 | # Handle 10th frame specially (when we have 9 complete frames) |
| 57 | if len(self.frames) == 9: |
| 58 | # Validate 10th frame pin counts |
| 59 | if len(self.frame_rolls) == 0: |
| 60 | # First roll - always valid |
| 61 | self.frame_rolls.append(pins) |
| 62 | elif len(self.frame_rolls) == 1: |
| 63 | # Second roll validation |
| 64 | if self.frame_rolls[0] == 10: # First was strike |
| 65 | # Second roll after strike - always valid |
| 66 | self.frame_rolls.append(pins) |
| 67 | else: |
| 68 | # Regular frame validation - can't exceed 10 |
| 69 | if self.frame_rolls[0] + pins > 10: |
| 70 | raise ValueError("Cannot knock down more than 10 pins in a frame") |
| 71 | self.frame_rolls.append(pins) |
| 72 | elif len(self.frame_rolls) == 2: |
| 73 | # Third roll validation - only allowed if first was strike or first two were spare |
| 74 | if self.frame_rolls[0] == 10: # First was strike |
| 75 | if self.frame_rolls[1] == 10: # Second was also strike |
| 76 | # Third roll after two strikes - always valid |
| 77 | self.frame_rolls.append(pins) |
| 78 | else: |
| 79 | # Second wasn't strike - third roll can't exceed 10 with second |
| 80 | if self.frame_rolls[1] + pins > 10: |
| 81 | raise ValueError("Cannot knock down more than 10 pins in a frame") |
| 82 | self.frame_rolls.append(pins) |
| 83 | elif sum(self.frame_rolls[:2]) == 10: # First two were spare |
| 84 | # Third roll after spare - always valid |
| 85 | self.frame_rolls.append(pins) |
| 86 | else: |
| 87 | # Open frame - shouldn't get here |
| 88 | raise IndexError("Cannot throw bonus with an open tenth frame") |
| 89 | else: |
| 90 | # Already have 3 rolls - game should be complete |
| 91 | raise ValueError("invalid fill balls") |
| 92 | |
| 93 | # Check frame completion |
| 94 | if len(self.frame_rolls) == 2: |
| 95 | # If it's not a strike or spare, frame is complete |
| 96 | if self.frame_rolls[0] != 10 and sum(self.frame_rolls) != 10: |
| 97 | self.frames.append(self.frame_rolls[:]) |
| 98 | self.frame_rolls = [] |
| 99 | elif len(self.frame_rolls) == 3: |
| 100 | # Frame complete with 3 rolls |
| 101 | self.frames.append(self.frame_rolls[:]) |
| 102 | self.frame_rolls = [] |
| 103 | return |
| 104 | |
| 105 | # Regular frame handling |
| 106 | if len(self.frame_rolls) == 0: |
| 107 | self.frame_rolls.append(pins) |
| 108 | if pins == 10: # Strike |
| 109 | self.frames.append([pins]) |
| 110 | self.frame_rolls = [] |
| 111 | else: # Second roll in frame |
| 112 | # Edge Case: Frame total cannot exceed 10 |
| 113 | if self.frame_rolls[0] + pins > 10: |
| 114 | raise ValueError("Cannot knock down more than 10 pins in a frame") |
| 115 | self.frame_rolls.append(pins) |
| 116 | self.frames.append(self.frame_rolls[:]) |
| 117 | self.frame_rolls = [] |
| 118 | |
| 8 | 119 | def score(self): |
| 9 | | pass |
| 120 | """ |
| 121 | Calculate the total score for the game. |
| 122 | |
| 123 | Returns: |
| 124 | int: The total score of the game |
| 125 | |
| 126 | Raises: |
| 127 | IndexError: If the game is not yet complete |
| 128 | """ |
| 129 | # Edge Case: Game not complete |
| 130 | if not self.is_game_complete(): |
| 131 | raise IndexError("Game is not yet complete") |
| 132 | |
| 133 | total_score = 0 |
| 134 | |
| 135 | # Score first 9 frames |
| 136 | for i in range(9): |
| 137 | frame = self.frames[i] |
| 138 | |
| 139 | if frame[0] == 10: # Strike |
| 140 | # Add next two rolls |
| 141 | frame_score = 10 |
| 142 | next_rolls = self.get_next_rolls(i, 2) |
| 143 | frame_score += sum(next_rolls) |
| 144 | elif sum(frame) == 10: # Spare |
| 145 | # Add next roll |
| 146 | frame_score = 10 |
| 147 | next_rolls = self.get_next_rolls(i, 1) |
| 148 | frame_score += sum(next_rolls) |
| 149 | else: # Open frame |
| 150 | frame_score = sum(frame) |
| 151 | |
| 152 | total_score += frame_score |
| 153 | |
| 154 | # Add tenth frame score (just sum all rolls in 10th frame) |
| 155 | total_score += sum(self.frames[9]) |
| 156 | |
| 157 | return total_score |
| 158 | |
| 159 | def get_next_rolls(self, frame_index, count): |
| 160 | """ |
| 161 | Get the next N rolls after a given frame for scoring strikes/spares. |
| 162 | |
| 163 | Args: |
| 164 | frame_index (int): Index of the current frame |
| 165 | count (int): Number of rolls to get |
| 166 | |
| 167 | Returns: |
| 168 | list: List of the next N rolls |
| 169 | """ |
| 170 | rolls = [] |
| 171 | |
| 172 | # Look at subsequent frames to get rolls |
| 173 | for i in range(frame_index + 1, len(self.frames)): |
| 174 | frame = self.frames[i] |
| 175 | for roll in frame: |
| 176 | rolls.append(roll) |
| 177 | if len(rolls) == count: |
| 178 | return rolls |
| 179 | |
| 180 | return rolls |
| 181 | |
| 182 | # Handled Edge Cases: Invalid number of pins, too many pins, game already completed, |
| 183 | # tenth frame special handling, frame total exceeding 10, game not complete, |
| 184 | # tenth frame incomplete |