Add brain-gcd game

Author: pwr44

Makefile

@@ -10,6 +10,9 @@ brain-even:
 brain-calc:
 	uv run brain-calc
 
+brain-gcd:
+	uv run brain-gcd
+
 build:
 	uv build
 

brain_games/scripts/games/brain_gcd.py

@@ -0,0 +1,43 @@
+from random import randint
+
+from brain_games.engine import engine
+
+GAME_TASK = 'Find the greatest common divisor of given numbers.'
+MIN_NUMBER = 2
+MAX_NUMBER = 10
+
+
+def get_second_number(first_number, random_member):
+    second_number = randint(MIN_NUMBER, MAX_NUMBER) * random_member
+    while second_number == first_number:
+        second_number = randint(MIN_NUMBER, MAX_NUMBER) * random_member
+    return second_number
+
+
+def get_gcd(num_1, num_2):
+    max_num = num_1 if num_1 > num_2 else num_2
+    gcd = 1
+    counter = 2
+    while counter <= max_num / 2:
+        if num_1 % counter == 0 and num_2 % counter == 0:
+            gcd = counter
+        counter += 1
+    return gcd
+
+
+def get_game_data():
+    random_member = randint(MIN_NUMBER, MAX_NUMBER)
+    first_number = randint(MIN_NUMBER, MAX_NUMBER) * random_member
+    second_number = get_second_number(first_number, random_member)
+    gcd = get_gcd(first_number, second_number)
+    game_question = f'{first_number} {second_number}'
+    game_answer = str(gcd)
+    return [game_question, game_answer]
+
+
+def main():
+    engine(GAME_TASK, get_game_data)
+
+
+if __name__ == "__main__":
+    main()

pyproject.toml

@@ -24,3 +24,4 @@ dev = [
 brain-games = "brain_games.scripts.games.brain_games:main"
 brain-even = "brain_games.scripts.games.brain_even:main"
 brain-calc = "brain_games.scripts.games.brain_calc:main"
+brain-gcd = "brain_games.scripts.games.brain_gcd:main"