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ChatGPTボウリング実装チャレンジ、SRPヴァージョン
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import java.util.ArrayList; | |
import java.util.List; | |
class Game { | |
private List<Frame> frames; | |
public Game() { | |
frames = new ArrayList<>(); | |
} | |
public void addFrame(Frame frame) { | |
frames.add(frame); | |
} | |
public int calculateScore() { | |
Scorer scorer = new Scorer(); | |
return scorer.calculateScore(frames); | |
} | |
} | |
class Frame { | |
private List<Integer> rolls; | |
public Frame(int... pins) { | |
rolls = new ArrayList<>(); | |
for (int pin : pins) { | |
rolls.add(pin); | |
} | |
} | |
public int getFirstRoll() { | |
return rolls.get(0); | |
} | |
public int getScore() { | |
int score = 0; | |
for (int roll : rolls) { | |
score += roll; | |
} | |
return score; | |
} | |
public boolean isStrike() { | |
return rolls.size() == 1 && getFirstRoll() == 10; | |
} | |
public boolean isSpare() { | |
return rolls.size() == 2 && getScore() == 10; | |
} | |
} | |
class Scorer { | |
public int calculateScore(List<Frame> frames) { | |
int totalScore = 0; | |
int frameIndex = 0; | |
for (int frameNumber = 0; frameNumber < 10; frameNumber++) { | |
Frame currentFrame = frames.get(frameIndex); | |
if (currentFrame.isStrike()) { | |
totalScore += 10 + getStrikeBonus(frameIndex, frames); | |
frameIndex++; | |
} else if (currentFrame.isSpare()) { | |
totalScore += 10 + getSpareBonus(frameIndex, frames); | |
frameIndex += 2; | |
} else { | |
totalScore += currentFrame.getScore(); | |
frameIndex += 2; | |
} | |
} | |
return totalScore; | |
} | |
private int getStrikeBonus(int frameIndex, List<Frame> frames) { | |
Frame nextFrame = frames.get(frameIndex + 1); | |
int bonus = nextFrame.getScore(); | |
if (nextFrame.isStrike()) { | |
Frame nextNextFrame = frames.get(frameIndex + 2); | |
bonus += nextNextFrame.getFirstRoll(); | |
} | |
return bonus; | |
} | |
private int getSpareBonus(int frameIndex, List<Frame> frames) { | |
Frame nextFrame = frames.get(frameIndex + 1); | |
return nextFrame.getFirstRoll(); | |
} | |
} |
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