Add game: brain-gcd

Makefile

@@ -18,4 +18,7 @@ brain-even:
 	poetry run brain-even
 
 brain-calc:
-	poetry run brain-calc
+	poetry run brain-calc
+
+brain-gcd:
+	poetry run brain-gcd

README.md

@@ -6,3 +6,5 @@
 asciinema game brain-even (https://asciinema.org/a/ai5jn7A3lrUcdwqXUyDEqt4O9)
 
 asciinema game brain-calc (https://asciinema.org/a/5zjMH4tBlli6rwRq09TIg6QSe)
+
+asciinema game brain-gcd (https://asciinema.org/a/JrAlVYJD3mrWSkFc0ZK8FjZ4k)

brain_games/scripts/brain_gcd.py

@@ -0,0 +1,54 @@
+import prompt
+from random import randint, choice
+
+
+def welcome_user():
+    global name
+    name = prompt.string('May I have your name? ')
+    print(f'Hello, {name}!')
+
+
+def greeting():
+    print('Welcome to the Brain Games!')
+
+
+def try_again(name):
+    print(f"Let's try again, {name}!")
+
+
+def congratulations(name):
+    print(f"Congratulations, {name}!")
+
+
+def brain_gcd():
+    print('Find the greatest common divisor of given numbers.')
+    count_correct_answers = 0
+    while count_correct_answers < 3:
+        first_random_number = randint(1, 100)
+        second_random_number = randint(1, 100)
+        correct_answer = 1
+        for i in range(2, min(first_random_number, second_random_number)+1):
+            if first_random_number % i == 0 and second_random_number % i == 0:
+                correct_answer = i
+        print(f'Question: {first_random_number} {second_random_number}')
+        user_answer = prompt.string('Your answer: ')
+        if user_answer == str(correct_answer):
+            print('Correct!')
+            count_correct_answers += 1
+        else:
+            print(f"'{user_answer}' is wrong answer ;(."
+                  f" Correct answer was '{correct_answer}'.")
+            try_again(name)
+            break
+    if count_correct_answers == 3:
+        congratulations(name)
+
+
+def main():
+    greeting()
+    welcome_user()
+    brain_gcd()
+
+
+if __name__ == '__main__':
+    main()

pyproject.toml

@@ -16,6 +16,7 @@ prompt = "^0.4.1"
 brain-games = "brain_games.scripts.brain_games:main"
 brain-even = "brain_games.scripts.brain_even:main"
 brain-calc = "brain_games.scripts.brain_calc:main"
+brain-gcd = "brain_games.scripts.brain_gcd:main"
 
 [tool.poetry.group.dev.dependencies]
 flake8 = "^6.1.0"