/
app.js
56 lines (44 loc) · 1 KB
/
app.js
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class Game {
constructor() {
this.rolls = [];
}
roll(pins) {
this.rolls.push(pins);
}
score() {
var score = 0;
var frameIndex = 0;
var self = this;
function sumOfBallsInFrame() {
return self.rolls[frameIndex] + self.rolls[frameIndex + 1];
}
function spareBonus() {
return self.rolls[frameIndex + 2];
}
function strikeBonus() {
return self.rolls[frameIndex + 1] + self.rolls[frameIndex + 2];
}
function isStrike() {
return self.rolls[frameIndex] === 10;
}
function isSpare() {
return self.rolls[frameIndex] + self.rolls[frameIndex + 1] === 10;
}
for (var frame = 0; frame < 10; frame++) {
if (isStrike()) {
score += 10 + strikeBonus();
frameIndex++;
}
else if (isSpare()) {
score += 10 + spareBonus();
frameIndex += 2;
}
else {
score += sumOfBallsInFrame();
frameIndex += 2;
}
}
return score;
}
}
module.exports = Game;