I have an assignment to write a number-guessing game, with these requirements:

1. End the game when the guess is correct
2. Tell if the guess number is smaller or larger when the guess is wrong
3. Keep running until there are 5 failed attempts

I wrote this code that uses a for loop:

number = 69

for x in range (5):
  guess = float(input('Please enter a number:'))
  if guess == number:
    print('Congratulations')
    break
  elif guess < number:
    print('Number too small')   
  else:
    print('Number too large')

for x in range(5):
  if guess != number:
    print('Game Over')
  break

How can I modify the code to use a while loop instead? I got this far:

number = 69 
guess=float(input('Please enter a number: ')) 

while True:
  if guess == number:
    break
  guess=float(input('Please enter a number: '))

print('Congratulations')

but this does not verify the guess or check the number of attempts.

When I tried to add the rest of the logic, like so:

number = 69 
guess=float(input('Please enter a number: ')) 

def guess_game():
  while True:
    if guess == number:
      break
    guess=float(input('Please enter a number: '))

if guess < number:
  print('Number too small')
else:
  print('Number too large')

x = 0
while x < 6:
  guess_game()
  if guess != number:
    print('Game Over')
    break

print('Congratulations')

I got this error: 'UnboundLocalError: local variable 'guess' referenced before assignment'

What is wrong, and how do I fix it?

CodePudding user response：

Your loop will be endless if you don't specify the fail scenario (in your case if x = 5) so you need to add that too. Also, don't forget to increment the x variable!

number = 69 
guess = float(input('Please enter a number: ')) 
x = 0

while True:
    if x == 4:
        print('Game over!')
        break
    if guess == number:
        print('Congratulations!')
        break
    guess = float(input('Please enter a number: '))
    x  = 1

CodePudding user response：

You made some good efforts.

This works:

number = 69


while guess != number:
    guess = float(input('Please enter a number:'))
    if guess < number:
        print('too low')
    elif guess > number:
        print('too high')
    else:
        print('you got it')

print('game over')

CodePudding user response：

I just used an incrementation variable instead, try this:

number = 69
i = 0

while i < 5:
    guess = float(input('Please enter a number:'))
    if guess == number:
        print('Congratulations')
        break
    elif guess < number:
        print('Number too small')   
    else:
        print('Number too large')   
    i =1
    
if guess != number:
    print('Game over')