done step 7 of the project

Author: Michael57e

README.md

@@ -8,3 +8,6 @@
 
 ## Brain Calc
 [![asciicast](https://asciinema.org/a/0Qp0SBrF6oVx5djcfAp1UXj8W.svg)](https://asciinema.org/a/0Qp0SBrF6oVx5djcfAp1UXj8W)
+
+## Brain GCD
+[![asciicast](https://asciinema.org/a/nP0uI7dz54y5BVvA2rY9Fk58g.svg)](https://asciinema.org/a/nP0uI7dz54y5BVvA2rY9Fk58g)

bin/brain-gcd.js

@@ -0,0 +1,5 @@
+#!/usr/bin/env node
+
+import playGcd from '../src/games/gcd.js';
+
+playGcd();

demo.cast4

@@ -0,0 +1,68 @@
+{"version": 2, "width": 80, "height": 24, "timestamp": 1758182190, "env": {"SHELL": "/bin/bash", "TERM": "xterm-256color"}}
+[0.316922, "o", "\u001b[?2004h\u001b]0;michael@michael-Nitro-ANV15-51: ~/qa-auto-engineer-javascript-project-44\u0007\u001b[01;32mmichael@michael-Nitro-ANV15-51\u001b[00m:\u001b[01;34m~/qa-auto-engineer-javascript-project-44\u001b[00m$ "]
+[2.56228, "o", "b"]
+[3.037123, "o", "r"]
+[3.193882, "o", "a"]
+[3.73763, "o", "i"]
+[4.001552, "o", "n"]
+[4.815088, "o", "-"]
+[5.837692, "o", "g \r"]
+[6.067107, "o", "c"]
+[6.176749, "o", "d"]
+[6.592189, "o", "\r\n\u001b[?2004l\r"]
+[6.642685, "o", "Welcome to the Brain Games!\r\n"]
+[6.642754, "o", "Find the greatest common divisor of given numbers.\r\n"]
+[6.644632, "o", "May I have your name? "]
+[8.69769, "o", "M"]
+[9.451599, "o", "i"]
+[9.723412, "o", "c"]
+[10.018442, "o", "h"]
+[10.152143, "o", "a"]
+[10.393142, "o", "e"]
+[10.655704, "o", "l"]
+[11.04693, "o", "\r\n"]
+[11.048234, "o", "Hello, Michael!\r\n"]
+[11.048291, "o", "Question: 71, 81\r\n"]
+[11.048377, "o", "Your answer: "]
+[15.67017, "o", "1"]
+[16.594359, "o", "\r\n"]
+[16.595367, "o", "Correct!\r\nQuestion: 34, 49\r\nYour answer: "]
+[21.217996, "o", "1"]
+[22.482206, "o", "\r\n"]
+[22.482717, "o", "Correct!\r\n"]
+[22.483049, "o", "Question: 10, 76\r\nYour answer: "]
+[27.986481, "o", "2"]
+[28.828391, "o", "\r\n"]
+[28.829101, "o", "Correct!\r\n"]
+[28.829225, "o", "Congratulations, Michael!\r\n"]
+[28.840136, "o", "\u001b[?2004h\u001b]0;michael@michael-Nitro-ANV15-51: ~/qa-auto-engineer-javascript-project-44\u0007\u001b[01;32mmichael@michael-Nitro-ANV15-51\u001b[00m:\u001b[01;34m~/qa-auto-engineer-javascript-project-44\u001b[00m$ "]
+[32.556712, "o", "b"]
+[32.90468, "o", "r"]
+[33.082949, "o", "a"]
+[33.456277, "o", "i"]
+[33.78053, "o", "n"]
+[34.838543, "o", "-"]
+[35.939623, "o", "g \r"]
+[36.247152, "o", "c"]
+[36.384529, "o", "d"]
+[36.66893, "o", "\r\n\u001b[?2004l\r"]
+[36.721417, "o", "Welcome to the Brain Games!\r\n"]
+[36.721797, "o", "Find the greatest common divisor of given numbers.\r\n"]
+[36.723306, "o", "May I have your name? "]
+[38.853015, "o", "N"]
+[39.260558, "o", "i"]
+[40.336296, "o", "c"]
+[40.506102, "o", "k"]
+[41.227548, "o", "\r\n"]
+[41.228778, "o", "Hello, Nick!\r\n"]
+[41.229, "o", "Question: 100, 85\r\n"]
+[41.229089, "o", "Your answer: "]
+[47.296547, "o", "5"]
+[48.066237, "o", "\r\n"]
+[48.066954, "o", "Correct!\r\nQuestion: 32, 85\r\n"]
+[48.067483, "o", "Your answer: "]
+[53.336879, "o", "4"]
+[54.823006, "o", "\r\n"]
+[54.823602, "o", "'4' is wrong answer ;(. Correct answer was '1'.\r\nLet's try again, Nick!\r\n"]
+[54.832061, "o", "\u001b[?2004h\u001b]0;michael@michael-Nitro-ANV15-51: ~/qa-auto-engineer-javascript-project-44\u0007\u001b[01;32mmichael@michael-Nitro-ANV15-51\u001b[00m:\u001b[01;34m~/qa-auto-engineer-javascript-project-44\u001b[00m$ "]
+[62.336022, "o", "\u001b[?2004l\r\r\nexit\r\n"]

package.json

@@ -20,7 +20,8 @@
   "bin": {
     "brain-games": "bin/brain-games.js",
     "brain-even": "bin/brain-even.js",
-    "brain-calc": "bin/brain-calc.js"
+    "brain-calc": "bin/brain-calc.js",
+    "brain-gcd": "bin/brain-gcd.js"
   },
   "dependencies": {
     "readline-sync": "^1.4.10"

src/games/gcd.js

@@ -0,0 +1,31 @@
+import runEngine from '../index.js'
+import getRandomNumber from '../utils.js'
+
+const rule = 'Find the greatest common divisor of given numbers.'
+
+const getGcd = (x, y) => {
+  let a = x
+  let b = y
+
+  if (b === 0) return a
+  
+  while (b !== 0) {
+    const temp = b
+    b = a % b
+    a = temp
+  }
+  return a
+}
+
+const makeRound = () => {
+  const x = getRandomNumber(1, 100)
+  const y = getRandomNumber(1, 100)
+  
+  const question = `${x}, ${y}`
+  const answer = String(getGcd(x, y))
+  return [question, answer]
+}
+
+export default function playGcd() {
+  runEngine(rule, makeRound);
+}