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Frame.js
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Frame.js
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/*
Frame
@author: Oliver Belaifa, 2020
*/
'use strict';
class Frame {
#pins = 10; // available pins
#rolls = 2; // available rolls
#bonus = 0; // bonus rolls
#score = 0; // score of the frame
#knockedDownPins = [];
#lastFrame;
constructor(lastFrame) {
this.#lastFrame = lastFrame;
}
getScore() {
return this.#score;
}
getKnockedDownPins() {
return this.#knockedDownPins;
}
getAvailablePins() {
return this.#pins;
}
rollsDone() {
return this.#rolls === 0;
}
bonusDone() {
return this.#bonus === 0;
}
done() {
return this.rollsDone() && this.bonusDone();
}
knockDownPins(pinCount) {
this.#pins -= pinCount;
this.#knockedDownPins.push(pinCount);
this.#score += pinCount;
this.#rolls--;
if (this.#lastFrame) {
// special handling of the last frame
if (this.#pins === 0 && this.#knockedDownPins.length < 3) {
this.#pins = 10;
if (this.#rolls + this.#knockedDownPins.length === 2) {
++this.#rolls;
}
}
} else {
if (this.#pins === 0) {
// in case of a strike bonus rolls is set to 2
// in case of a spare bonus rolls is set to 1
this.#bonus = this.#rolls + 1;
this.#rolls = 0;
}
}
}
addBonus(pinCount) {
this.#score += pinCount;
this.#bonus--;
}
}
module.exports = Frame;