Semester2_Session2

"""
Rules for functions
1) Define a function BEFORE you call it
2) Must have at least one instruction in the function body...
must have either 'pass' or a print statement
3) Be careful with indentation
4) DO NOT define another function inside a function
"""

import random as rd

def main():
    keepGoing = True
    while keepGoing:
        playARound()
        response = input("Play again? (y/n)? ").strip().lower()[0]
        if response == 'n': keepGoing = False
    print("Bye...")

def playARound():
    global guessedCorrectly
    global numGuesses
    computerGeneratesNumber()
    numGuesses = 0
    MAX_ALLOWED = 3
    guessedCorrectly = False

    while not guessedCorrectly and numGuesses < MAX_ALLOWED:
        makeAGuess()
        numGuesses += 1
        checkGuess()

    outputResult()
    print("end")

def computerGeneratesNumber(): #name of the function
    global numToGuess
    # pass
    print("generating a number to guess")
    numToGuess = rd.randint(0, 100)
    print(numToGuess)
# outdenting is the end of the function definition

def makeAGuess():
    global userGuess #global is needed so python can change the amount of guesses
    print("Make a guess...")
    validInput = False
    while not validInput:
        try:
            userGuess = int(input("What is your guess? ").strip())
            validInput = True
        except:
            print("non-interger input... try again")

def checkGuess():
    global guessedCorrectly
    if userGuess < numToGuess: print("guess is too low") # dont need to set userGuess or numToGuess as global as python just looks it up
    if userGuess > numToGuess: print("guess is too high")
    else:
        guessedCorrectly = True
        print("got it right")

def outputResult():

    if guessedCorrectly: print("Well Done, you got it right in", numGuesses, "goes!")
    else: print("bad luck, you ran out of guesses. The number was", numToGuess)


main()