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I'm making a simple python survival game and I want one day to pass every five turns (so every time x hits a multiple of 5, y = 1 + 1). Is there a simple way to do this?

Ethen Dixon
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  • Yes, the key word is "modulo operator". – Sergio Tulentsev Sep 14 '20 at 18:43
  • sergio tulentsev, could you give me example code using my situation? – Ethen Dixon Sep 14 '20 at 18:47
  • In ruby it'd be `days += 1 if turns % 5 == 0`. I leave it to you to translate this to python. It should turn out largely the same. – Sergio Tulentsev Sep 14 '20 at 18:50
  • Welcome to Stack Overflow! Please take the [tour], read [what's on-topic here](/help/on-topic) and [ask], and provide a [mre]. "Implement this feature for me" is off-topic for this site. You have to _make an honest attempt_, and then ask a specific question about your algorithm or technique. – Pranav Hosangadi Sep 14 '20 at 18:54
  • Does this answer your question? [Modulo operator in Python](https://stackoverflow.com/questions/12754680/modulo-operator-in-python) – Pranav Hosangadi Sep 14 '20 at 18:54

1 Answers1

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Try below:

y=0
for x in range(50):
    if x > 0 and x % 5 == 0:
        y+=1
    print ('x', x)
    print ('y', y)

Explanation:

  • for x in range(50): Will iterate value of x from 0 to 49
  • if x > 0 and x % 5 == 0: Checks if x is greater than 0 (you can remove this), and checks if x modulo 5 is zero
  • y += 1: Will increment value of y by 1
Pranav Hosangadi
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Homer
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  • `for x in range(50)` does not _print_ anything. `if x > 0` is unnecessary, just start `range` at 1. – Pranav Hosangadi Sep 14 '20 at 18:56
  • I am printing x in the second last line. x > 0 is totally optional, depending on user's requirement. – Homer Sep 14 '20 at 19:00
  • 1. Right. Your explanation says "for x in range(50): --> Will print value of x from 0 to 49". `for ...` _iterates_ over those values, it doesn't print anything. 2. Having an `if` in every iteration to filter out something that could be done by just changing the range of iterations instead is not efficient code. – Pranav Hosangadi Sep 14 '20 at 19:05