Add game: brain-progression

Makefile

@@ -22,3 +22,6 @@ brain-calc:
 
 brain-gcd:
 	poetry run brain-gcd
+
+brain-progression:
+	poetry run brain-progression

README.md

@@ -8,3 +8,5 @@ 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)
+
+asciinema game brain-progression (https://asciinema.org/a/eZD5xzdn7lVDwY798sVaUWOyg)

brain_games/scripts/brain_progression.py

@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+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_progression():
+    print('What number is missing in the progression?')
+    count_correct_answers = 0
+    while count_correct_answers < 3:
+        random_start_number = randint(1, 20)
+        random_step = randint(1, 10)
+        random_sequence = []
+        for i in range(10):
+            random_sequence.append(random_start_number + random_step * i)
+        random_index_of_seq = randint(0, 9)
+        correct_answer = str(random_sequence[random_index_of_seq])
+        random_sequence[random_index_of_seq] = '..'
+        print('Question:', *random_sequence)
+        user_answer = prompt.string('Your answer: ')
+        if user_answer == 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_progression()
+
+
+if __name__ == '__main__':
+    main()

pyproject.toml

@@ -17,6 +17,7 @@ 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"
+brain-progression = "brain_games.scripts.brain_progression:main"
 
 [tool.poetry.group.dev.dependencies]
 flake8 = "^6.1.0"