#!/usr/bin/python
import os
from random import randint

def check_guess(target_number, guessed_number):
    'Function to check whether a guessed number matches the the target number'
    odd_numbers = [number for number in range(1,99,2)]
    even_numbers = [number for number in range(2,100,2)]

    if guessed_number == target_number:
        return True
    elif guessed_number > target_number:
        difference = guessed_number - target_number
        if difference > 20:
            how_wrong = "WAY too High"
        else:
            how_wrong= "Too high!"
        print(how_wrong)
        if target_number in odd_numbers:
            print("Clue: It is an odd number")
        return False
    else:
        print("Too low")
        if target_number in even_numbers:
            print("Clue: It is an even number")
        return False

def show_game_menu(score):
    'Function to show the user options to quit or start a new game'
    if os.name == 'posix':
        os.system("clear")
    else:
        os.system("cls")
    print("---------------------------------")
    print("Welcome to Guessy Numz!")
    print("---------------------------------")
    chosen_option = input("Quit (q), New Game (n), Show Score (s)")
    if chosen_option == 'q':
        close_game(score)
    elif chosen_option == 'n':
        new_game(score)
    elif chosen_option == 's':
        print("Your score currently is ", score)
        input("Press the [Enter] key to continue...")
        show_game_menu(score)

    else:
        print("Else??")

def new_game(score):
    'Main function for gameplay'
    round_active = True
    num_of_guesses = 0
    print("Guess the number between 1 and 100")
    while round_active == True:
        guessed_number = int(input("Your Guess:  "))
        if check_guess(target_number, guessed_number):
            score = score + 1
            num_of_guesses += 1
            print("Correct! You used ",num_of_guesses," guesses.")
            print("Your score is now ", score)
            input("Press the [Enter] key to continue...")
            show_game_menu(score)
        else:
            num_of_guesses+=1
            round_active = True

def close_game(score):
    print("Thanks for playing Guessy Numz. Your final score was ", score, ". Bye!")
    exit(0)

score = 0
target_number = randint(0,100)

game_active = True

while game_active == True:
    show_game_menu(score)