add new module start_game.py

Author: annetmyshkina

brain_games/games/start_game.py

@@ -0,0 +1,41 @@
+
+
+import prompt
+from brain_games.games.check_even import check_even
+from brain_games.games.calculator import calculator
+
+
+def start_game():
+    print('Welcome to the Brain Games!')
+    user_name = prompt.string("May I have your name? ")
+    print(f"Hello, {user_name}!")
+    number_game = prompt.integer('Choose a game: 1 - "checking for parity", 2 - "calculator" ')
+
+    
+    games = {1: check_even, 2: calculator}
+    game_func = games.get(number_game)
+
+    if number_game == 1:
+        print('Answer "yes" if the number is even, otherwise answer "no".')
+    elif number_game == 2:
+        print('What is the result of the expression?')
+    elif number_game not in games:
+        print("There is no such number\nLet's try again, {user_name}!")
+
+    
+    correct_answers_count = 0
+
+    while correct_answers_count < 3:
+        random_number, correct_answer = game_func()
+        print(f'Question: {random_number}')
+        user_answer = input("Your answer: ")
+
+        if user_answer == correct_answer:
+            print('Correct!')
+            correct_answers_count += 1
+        else:
+            print(f"'{user_answer}' is wrong answer ;(. Correct answer was '{correct_answer}'.\nLet's try again, {user_name}!")
+            break
+
+    if correct_answers_count == 3:
+        print(f'Congratulations, {user_name}!')