Add brain-calc

Author: BiscayN

README.md

@@ -6,4 +6,7 @@
 [![Maintainability](https://api.codeclimate.com/v1/badges/83457b9fd7b67208524c/maintainability)](https://codeclimate.com/github/BiscayN/python-project-49/maintainability)
 
 ### Brain-Even Test:
-[![asciicast](https://asciinema.org/a/qZlswideTs2fVDc6qpCy2EsIc.svg)](https://asciinema.org/a/qZlswideTs2fVDc6qpCy2EsIc)
+[![asciicast](https://asciinema.org/a/qZlswideTs2fVDc6qpCy2EsIc.svg)](https://asciinema.org/a/qZlswideTs2fVDc6qpCy2EsIc)
+
+### Brain-Calc Test:
+[![asciicast](https://asciinema.org/a/mkMowswaIrjQpgW8QyvtBGrHi.svg)](https://asciinema.org/a/mkMowswaIrjQpgW8QyvtBGrHi)

brain_games/scripts/brain_calc.py

@@ -0,0 +1,34 @@
+from random import randint
+from random import choice
+from sys import exit
+from prompt import string
+
+START_QUESTION = 'What is the result of the expression?'
+
+
+def get_values():
+    num1, num2 = randint(1, 50), randint(1, 50)
+    operator = choice(['+', '-', '*'])
+    return num1, num2, operator
+
+
+def main():
+    print('Welcome to the Brain Games!')
+    name = string('May I have your name? ')
+    print(f'Hello, {name}!')
+    print(START_QUESTION)
+    counter = 0
+    while counter < 3:
+        num1, num2, operator = get_values()
+        question = f'{max(num1, num2)} {operator} {min(num1, num2)}'
+        print(f'Question: {max(num1, num2)} {operator} {min(num1, num2)}')
+        user_answer = string('Your answer: ')
+        if str(eval(question)) == str(user_answer):
+            print('Correct!')
+        else:
+            print(f"'{user_answer}' is wrong answer ;(. Correct answer was '{eval(question)}'")
+            print(f"Let's try again, {name}!")
+            exit(0)
+        counter += 1
+    print(f'Congratulations, {name}!')
+    exit(0)

pyproject.toml

@@ -15,6 +15,7 @@ prompt = "^0.4.1"
 [tool.poetry.scripts]
 brain-games = "brain_games.scripts.brain_games:main"
 brain-even = "brain_games.scripts.brain_even:main"
+brain-calc = "brain_games.scripts.brain_calc:main"
 
 [tool.poetry.group.dev.dependencies]
 flake8 = "^7.1.1"